Summary of heating and environmental protection work

Sample summary of heating and environmental protection work

When the project department first started working, under the leadership of Manager Bian and Manager Li, our fourteen employees worked together as one, and under the careful leadership of the group company under guidance. We are both a team and have our own division of labor. The following is a sample summary of heating and environmental protection work that I compiled and shared for you. Welcome to read and refer to it.

Heating and Environmental Protection Work Summary Sample 1

Time flies, and 20xx has passed in the blink of an eye. Looking back on the work of the year, I feel a lot and gain a lot. It also includes the training and education of leaders at all levels and the help and care of colleagues, as well as the bitterness of one's own hard work and unremitting efforts. Over the past year, I have always adhered to the principle of working diligently and being sincere, insisting on not being greedy for big things, not counting gains and losses, and conscientiously performing my own job. From the external network management station to the engineering project department, no matter what kind of work they do, they insist on executing the tasks assigned by the company. It can be said that 20xx is a critical year for the company to promote reform, expand the market, and sustain development. The work of the past year is summarized as follows:

In 20xx, I consciously strengthened my study, humbly asked for advice, constantly clarified my work ideas, and summarized my working methods. On the one hand, we learn by doing and learn by doing. Continuously master methods and accumulate experience. I focus on being driven by work motivation, relying on my job position, learning and improving, and completing tasks quickly through observation, exploration, access to information and practical exercises. On the other hand, ask books and colleagues to make continuous progress and gradually understand the basic situation at work, find the entry point, and grasp the key points and difficulties of the work. From January to April, I worked at the No. 1 Management Station, responsible for the heating tasks of more than 500,000 square meters such as Duiyuan. All our staff lived up to the expectations of the leadership, successfully completed the heating tasks and various economic indicators for 20xx, and actively Cooperate with the charging staff to charge, and the charging rate reaches more than 90%. In May, I was transferred to the engineering project department. When the project department first started working, under the leadership of Manager Bian and Manager Li, our fourteen employees were united as one and under the careful guidance of the leaders of the group company. We are a team and have our own division of labor. My responsibilities are mainly responsible for the construction of heat exchange stations. There are 8 heat exchange stations, 14 heat exchange units and 6 ion exchangers. The heating area can reach 1.09 million square meters. . All employees of the engineering department endured the scorching heat and rainy nights, working on the front line for more than ten hours a day. Work diligently and hard without any complaints. Because our heating project process is relatively complex and cumbersome, there are many underground obstacles. I often work overtime. For example, the secondary network of the new community of the Medical College is quite complicated. When heating started, it was discovered that the water supply and return pipes were connected backwards. In order not to affect the heating time, I led four migrant workers to fight for 36 hours. Our eyes were welded The light stimulated the eyes to turn red, and the eyes could not be opened, but they still resolutely completed the task and sent warmth to the user in time. There are many, many more such jobs. Looking back on the past year, we have completed some work and achieved some results. In summary, we have the following experiences and gains.

(1) Only by positioning yourself correctly and working hard to become familiar with basic business can you better adapt to your job.

(2) Only by actively integrating into the group and handling all aspects of relationships can we maintain a good working condition in the new environment.

(3) Only by establishing a sense of service and strengthening communication and coordination can we do our jobs well.

(4) It is necessary to strengthen communication with employees, communicate well with employees, solve emotional problems of employees at work, and exchange ideas with employees.

After such an intense and orderly year, I feel that my work skills have reached a new level. I have clear plans and steps for every job, my actions have direction, and my work has goals. , I really have a bottom line in my heart! Basically, I am busy but not chaotic, tight but not scattered, clear and organized, and everything is clear. I fundamentally get rid of the phenomenon of just working hard and not knowing how to sum up experience.

In this way, I walked into this year with infinite busyness, and walked out of this year with infinite ease. Also, while working, I also understood the principles of dealing with others, and I also understood that a good mentality, How important is passion for work and its sense of responsibility in comparison. To sum up: In this year's work, I have been exposed to many new things, created many new problems, and also learned a lot of new knowledge and new experiences, which has enabled me to improve and further improve my ideological understanding and work ability. . In my daily work, I always ask myself to proceed from reality, adhere to high standards and strict requirements, and strive to improve both professional and moral qualities. Listen to the opinions of the employees below, dare to recommend talents, summarize work achievements and problems, and take timely countermeasures! Overall, there are still deficiencies and some problems that need to be solved urgently, mainly in the following aspects: He doesn't learn new things enough. He often relies on experience at work and handles problems based on past work routines, which shows that he is not brave enough to innovate at work.

In view of the shortcomings in the work in 20xx, in order to do a good job in the new year, we will highlight the following aspects:

(1) Actively coordinate with employees , further straighten out the relationship;

(2) Strengthen the learning and improvement of management knowledge, innovate working methods, and improve work efficiency;

(3) Strengthen the construction of basic work and strengthen management innovation Practice to promote the improvement of management level.

In the future work, we must continue to innovate, communicate with employees in a timely manner, publicize the relevant regulations of company management to employees, improve employees’ safety awareness, and at the same time, we must strictly demand ourselves in terms of safety management, so as to All employees of the company should set an example and take the lead. In the work next year, I will continue to work hard, report more to my leaders on my thoughts and feelings at work, and promptly correct and make up for my own shortcomings and defects. Our work must be united to be powerful, cooperation must be successful, and we can push our work forward! I believe that under the correct leadership of the Urban Investment Group Company, the company will develop better! Sample summary of heating and environmental protection work 2

Time flies, and 20xx is about to pass in the blink of an eye. Looking back on the work over the past year, I have a lot of feelings and fruitful results. It includes the education, training, help and care of leaders at all levels of the company, as well as the bitterness of one's own hard work and unremitting efforts. Over the past year, I have always adhered to the principle of working diligently and being sincere, insisting on not being greedy for big things, not counting gains and losses, and conscientiously performing my own work, from pipeline network engineering construction to heating operation management, no matter what kind of work, I insist on executing it Tasks assigned by the company. It can be said that 20xx is an extraordinary year for Yinjiagou Coal Mine, Lanyu Thermal Power Company and me personally. It is a key year for promoting reform, expanding the market, and sustaining development. The work of the past year is summarized as follows:

1. The completion status and specific methods of project construction in 20xx

At present, 34Km of trench excavation has been completed, and various specifications of welding have been completed. 70km of main and branch pipes, more than 200 valves and compensators installed, 70km of strength test, more than 10,000 welds inspected and insulated, 1.2 million m of earthwork backfilled, 52,000 m of pavement restored, 10,000 m of lawn bricks restored, and 75 well chambers were built, including 60 valve wells and 15 compensator wells. Completed the construction of the second network of 65km, built 5 heat exchange stations, transformed old boilers into 16 heat exchange stations, successfully connected with 8 heat exchange stations of Xiangyu Thermal Power Company, and the heating area reached 1.52 million m2.

The central heating project in Yangcheng County is an important livelihood project determined by the county party committee and county government in 20xx. In order to do a good job in this project, do good things, and make the people truly warm, the quality of the heating pipeline construction is very important. In terms of quality control, I mainly focus on two major aspects. One is the quality control of raw materials; the other is the quality control of construction technology level.

(1) Raw materials are the basis for quality control of heating pipelines

First of all, the material supply unit should be determined before the start of the project. The production unit should be selected with strong production capacity and advanced manufacturing technology. As our bidding material supply partners, enterprises with qualified product quality require both parties to jointly bear the responsibility for the construction quality of heating pipelines; determine the material supplier through public bidding; secondly, for pipes, compensators, valves, etc. that enter the site, Elbows, tees, insulation, anti-corrosion, welding rods and other materials must be inspected in strict accordance with standards. For example, for pipes. We require on-site material technicians to focus on checking the wall thickness, welds and inner and outer wall corrosion. The material and wall thickness deviation of the steel pipe should comply with the current national steel pipe manufacturing technical standards (GB/T9711-20xx), and have a product certificate from the manufacturer , the missing items in the certificate should be supplemented by inspection; for compensators, valves, elbows, tees, welding rods, etc., they must have the product certificate from the manufacturer and the inspection certificate from the compensator and valve inspection department where the project is located. After inspection Substandard materials shall not be used. In this way, ensuring the quality of engineering materials is the first step in quality control of heating pipeline projects.

(2) Quality control of the construction process

1. Quality control of surveying and setting out: Surveyors are required to determine the centerline of the pipeline, valve wells, fixed buttresses, and compensators. After the position is in place, a retest must be carried out. Only when the error meets the requirements can the next construction process be allowed. If a building needs to be avoided during construction, the supervision unit and the design unit are required to agree Negotiate and add elbows at appropriate locations to prevent gas collection if necessary. Install a release valve at a high point and a drain valve at a low point. At the same time, the elevation of the pipeline must be controlled strictly in accordance with the design drawings. Each process, such as trench inspection, filling of foundation sand cushion, and pipeline installation, must be controlled and measured to ensure the construction quality.

2. Quality control of trench excavation

Before trench excavation, the appropriate grading slope must be determined based on the soil type and soil quality on site. Determine a reasonable slotting section and slot bottom width. When determining the excavation section, project safety and quality must be considered to ensure a reasonable slotting section. In addition, since the beginning of summer this year, there has been more rain than in previous years. During construction, in order to prevent water from soaking at the bottom of the trench, closed ridges of soil were built around the trench. Sometimes drainage ditches and water collection wells were dug outside the trench, and water pumps were used. Carry out water pumping. After the trench bottoms out, the next process should be carried out randomly. During the trench excavation process, measure and inspect the trench bottom elevation at any time to prevent over-excavation.

3. Quality control of sand backfill

To control the quality of the sand cushion at the bottom of the tank, we must first control the quality of the sand. The sand material should have moderate dryness and humidity, uniform particle size, and no Contains silt agglomeration. Secondly, the thickness and elevation of the sand cushion backfill must be strictly controlled. Before backfilling, the compactness and elevation of the trench bottom must be reviewed. Only after confirmation is correct can the backfill be allowed. The sand cushion should be backfilled and compacted.

Quality control of the sand layer in the chest cavity of the pipeline. When backfilling the chest cavity, both sides must be backfilled at the same time to prevent the centerline of the pipeline from shifting. Backfilling requires layered compaction, with manual compaction of 200 to 250 mm for each layer and mechanical compaction. Each layer is 250 to 300 mm, and the backfill density must meet the design requirements.

4. Quality control of backfill soil above the sand layer

Strictly control the quality of backfill soil. The backfill soil shall not contain broken bricks, stones, concrete fragments and hard soil blocks larger than 100 mm. The moisture content of the fill soil should be close to the optimal moisture content. Before returning the soil, a light standard compaction test should be conducted on the returned soil to measure its optimal moisture content and maximum dry density. During backfilling, there should be no accumulated water in the tank, and silt, humus, frozen soil and organic matter should not be backfilled.

5. Quality control during the installation process of thermal pipelines and accessories

Before running the pipe, the compaction and elevation of the sand cushion should be rechecked. Only when it meets the design requirements can it be The pipes can be hoisted into the trench according to the above lifting method and placed stably. It is strictly forbidden to push the insulation pipe directly into the trench. When connecting, the pipe mouth should be aligned and kept concentric.

The maximum distance between the compensator in the straight pipe section and the bending radius of the compensator elbow should meet the design requirements. At least one guide support should be provided at both ends close to the compensator. When the ambient temperature during installation is lower than the compensation At zero point, the compensator should be pre-stretched. The specific stretching value should comply with the provisions of the design document. When installing a waveform compensator or a packing type compensator, the end with the weld or the end with the cannula should be used. When installed horizontally, it should be installed against the flow direction of the medium. When installed vertically, it should be placed at the top. The compensator should be consistent with the slope of the pipeline when installed. The axis of the pipeline within 50 meters in front of the waveform compensator or packing type compensator should be consistent with the compensator. The axes should match and there should be no deflection. After the pipeline installation, pressure test, and heat preservation are completed, the temporary fixed device of the compensator should be loosened to ensure that it can expand and contract freely during use. When installing the valve, the flange surface should be perpendicular to the axis of the pipeline, and the screws should be tightened symmetrically to prevent uneven pressure and affect the installation quality. For butterfly valve installation, in order to prevent accumulation of debris at the bottom of the valve from affecting the closing tightness, the valve stem is required It should be installed at an angle, and the inclination angle should avoid the dead zone, and the left and right should not be less than 30 degrees.

6. Pipe welding quality

The pipeline material of Yangcheng County urban central heating project is Q235B spiral welded pipe. According to the actual situation of the project, manual argon arc welding is used for welding and arc welding. When facing, the welding rod adopts E4315, single-sided welding and double-sided forming process. Welders must undergo an on-site examination before taking up the job, and after passing the test, they can start work with a certificate. In order to prevent the spattered welding slag from burning the insulation pipe during welding, tarpaulin or rubber must be used to cover the insulation pipe 500 mm on both sides of the working point. During the installation process, the insulation layer at the pipe end must be kept dry at all times, and waterproof protection is strictly prohibited. The insulation is damp. When construction is interrupted, the pipe opening should be closed with a blocking board. The blocking board used in rainy season should also have the function of preventing mud from entering the pipe cavity. Where the pipe passes through the wall, a casing should be installed.

7. Quality control of functional tests

The strength and tightness test of heating pipelines is the most critical step in inspecting the quality of the heating pipeline construction process. First of all, it should be clear that the functional test of the heating pipeline should be jointly conducted by the owner, construction unit, supervision unit, and relevant departments. Only after the test is qualified can backfilling be carried out. Before the test, a bleed valve should be installed at the high end of the test pipe section, a drain valve should be installed at the low end, a pressure gauge should be installed, and the appearance quality of the welds along the line should be checked. In order to prevent the compensator from being deformed due to stress during the pressure test, it should be installed before the pressure test. Temporarily tighten the device before filling with water. When the water is full, first conduct a strength test. Use a pressure pump to increase the water pressure in the pipe to 1.5 times the design pressure. Stabilize the pressure under the test pressure for 10 minutes. Check that there is no leakage and no pressure drop and then reduce it to the design pressure. After the design If the pressure is stabilized for 30 minutes and there is no leakage, no abnormal sound, and no pressure drop, it is qualified; secondly, a tightness test is conducted. The tightness test pressure is 1.25 times the design pressure and not less than 0.6MPa. The pressure rises to the test pressure and After stabilizing, it is qualified if the pressure drop does not exceed the specified value within the specified pressure stabilization time.

2. Hidden dangers and problems during the construction of heating pipelines

1. Measuring radiation: There is no supervision, although the wiring has been put out by the supervisor, Party A, and the design institute , Party B’s confirmation. But I think it only determines the direction of the pipeline and does not measure the elevation. As a result, the bending angle of the pipe in the vertical direction is too large during the installation process. Moreover, we are currently constructing in sections. If the openings are not aligned during the installation process, incision construction will inevitably be required, resulting in stress concentration at the bending angle, which is likely to cause the pipe to break during thermal operation. A serious risk of leakage. As shown below:

2. Irregular trench construction ① Obstacles are not detected; ② Support is not in place; ③ Water accumulation; ④ No working pit; ⑤ No cushion or the cushion does not meet the requirements The requirements have consequences: interruption of water, electricity, gas, heat and communication facilities; landslides; safety accidents; damage to pipelines; ground subsidence.

3. The backfill is not dense enough, the backfill soil is not compacted in layers according to the specifications; the backfill soil is not screened, etc. Consequences: Defects in the insulation pipes and joints cannot be completely eliminated; local damage to the pipes affects the service life; density does not meet requirements; collapse of the backfill area causes danger.

4. The transportation, hoisting and storage of insulation pipes do not meet the requirements.

5. The installed insulation pipes are not sealed or the sealing is not tight; the port sealing method is improper. Consequences: Steel pipes get damp and rust; soil, stones, rain, mud or small animals enter the pipes, affecting later use. During the current heating operation, the water hardness is indeed too high, and the requirement is less than or equal to 6mg/L, but currently it is actually greater than 6mg/L, and the power plant is adding new softened water.

6. The construction was not carried out in strict accordance with the design drawings. There are several specific aspects of the performance. First, due to the tight construction period and limited construction site conditions, some valve wells did not add attached wells as required by the drawings, which may cause heating problems. When there is a problem with the pipeline, water cannot be released; secondly, there is no valve well on the branch pipeline, which is not conducive to adjustment, control and maintenance. For example, on the night of November 13, 20xx, outside the door of the ceramics factory during the trial operation, water leaked from the main heating pipe. The main heating network could not be shut down in time, and the accident caused a 13-hour heating outage. This is an example of a valve well not being added due to the limited local conditions of the branch pipeline during construction.

(3) Safety aspects:

1. Construction fence setting: ① does not meet the requirements (cannot meet the requirements of closure, beauty, neatness, stability, durability); ② fence The stalls are set up randomly (there are no fence stalls at the entrance of the fire brigade; the Xinjian South Road People's Hospital is set up in a fence style; the Rongze section uses colored steel tile cores placed horizontally with a height of less than 90 centimeters; the materials are not uniform, including wooden boards and iron sheets) ; The installation methods are complex and diverse, including tripods, pavement holes, warning lines, steel pipes, vertical, inclined, etc.) ③ The removal is not timely and incomplete.

2. Warning signs are incomplete and there are potential safety hazards in river construction during the flood season. ① Installed pipes floated below Shimenkou in the first bid section. ② Pipes and building materials piled up in the Xixiao River and Huoze River sections were not installed. Carry out timely clearing and transportation to prevent floods from affecting the river channel; ③ The river channel is not restored in time.

3. The direction of future work

The construction of one network must pay attention to details, and there must be no threaded links. During the suppression

The instruments installed during the test must be removed. , blocked, rubber and asbestos gaskets cannot be used in flange links, steel pads must be used, the valve well in a network of pipelines must be equipped with an auxiliary well, and the drain outlet must be led to the auxiliary well.

The construction of the second network needs to coordinate with the property, community, and village committee in advance to arrange a reasonable construction period. Because the construction is in a downtown area, safety fences must be set up to strictly prevent safety accidents. Designers are required Survey the terrain on site, solicit opinions from the surrounding people, design reasonable construction routes, and reduce the occurrence of route changes caused by the inconsistency between the drawing design made by the design unit without conducting on-site surveys and the actual construction conditions. The construction party is strictly required to carry out construction in accordance with the drawings and relevant technical disclosures, and is not allowed to change the route without permission or cut corners.

The flushing and trial operation work must be started in advance, and the flushing must be thorough. Based on this year’s operation results, it can be seen that the flushing work before the trial operation is not enough, causing most users’ filters to become clogged.

The construction of heat exchange stations also requires strengthening on-site survey requirements for design units. During the construction process of heat exchange stations this year, most of the drawings were inconsistent with the actual units, and there were too many temporary design changes, resulting in serious delays in the construction period. .

Achievements can only represent the past, only hard work can achieve the future. In the future work, I must consciously strengthen my study, humbly ask for advice, constantly clarify my work ideas, learn lessons from the problems that exist in this year's work, sum up experience, and strive to eliminate the occurrence of these problems in future construction. Learn by doing, learn by doing. Continuously master methods and accumulate experience. Pay attention to work motivation, rely on work positions, learn and improve, and better complete the work tasks in the new year through observation, exploration, access to information and practical exercises. On the other hand, ask books and colleagues to make continuous progress and gradually understand the basic situation at work, find the entry point, and grasp the key points and difficulties of the work. At a new starting point, we face new tasks, create new situations, and achieve new leaps and bounds. ;