CN219656037U - Uniform heat circulation temperature adjusting mechanism for boiler - Google Patents
Uniform heat circulation temperature adjusting mechanism for boiler Download PDFInfo
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- CN219656037U CN219656037U CN202320996371.4U CN202320996371U CN219656037U CN 219656037 U CN219656037 U CN 219656037U CN 202320996371 U CN202320996371 U CN 202320996371U CN 219656037 U CN219656037 U CN 219656037U
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- boiler
- furnace body
- water
- heat cycle
- uniform heat
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- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 238000004140 cleaning Methods 0.000 claims abstract description 37
- 238000005507 spraying Methods 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model discloses a uniform thermal circulation temperature regulating mechanism for a boiler, and belongs to the field of boiler equipment. The utility model comprises a furnace body, a cleaning part and a thermal circulation part, wherein the cleaning part comprises a water tank, a water pump, a rotating shaft and a fixed plate which are arranged in the furnace body, and the thermal circulation part comprises an air inlet pipe, an air outlet pipe, the water tank, the water pump and a heating box. The function of scraping dirt inside the furnace body is realized through the rotation of the rotating shaft by the cleaning component, the temperature inside the furnace body is reduced through the water spraying of the rotating shaft, the inside of the furnace body is heated by the thermal circulation component through high-temperature steam, and the thermal steam from the air outlet pipe is condensed and flows back into the heating box again to be vaporized, so that the circulating heating is realized, and the heat utilization rate of thermal circulation is improved.
Description
Technical Field
The utility model belongs to the field of boiler equipment, and particularly relates to a uniform thermal cycle temperature regulating mechanism for a boiler.
Background
In the normal operation process of the boiler, the thermodynamic cycle efficiency of the boiler can be improved by improving the steam parameters, but the further improvement of the steam temperature is limited by expensive high-temperature steel, and the deviation of the overheat steam temperature and the reheat steam temperature from the design value is too large, so that the safety and the economy of the boiler and the steam turbine are greatly influenced, and the proper regulation of the steam temperature is a very important ring in the power plant, so that the equipment is maintained in the optimal working state on the premise of protecting the boiler and the steam turbine as much as possible.
In a large-scale coal-fired boiler, the steam temperature is mainly regulated in two ways, namely, the steam side and the flue gas side, the main method of regulating in the steam side is a water spraying temperature reduction method, and the regulating method in the flue gas side mainly comprises the steps of dividing a flue baffle, changing the flame center position and recycling the flue gas.
The water spraying and temperature reducing method is commonly used at present, a water spraying and temperature reducing method is used for spraying water with lower temperature into a hearth through a water spraying and temperature reducing device, so that the aim of adjusting steam temperature is fulfilled, the sensitivity of water spraying and temperature reducing is high, the hysteresis is small, automatic control is facilitated, the temperature adjusting range is large, the equipment structure is simple, and the method is a scheme which is widely applied to a boiler of a thermal power plant.
But the problem that the inside of the furnace body is difficult to clean exists in the temperature regulation and control by adopting a water spraying temperature reduction method, and dirt which is difficult to treat can be formed on the inner wall of the furnace body after the high-temperature flue gas entering the furnace body contacts with water vapor, so that the furnace can only wait for the whole overhaul of a hearth to be cleaned manually.
Therefore, a circulating temperature adjusting structure capable of timely cleaning the inside of the furnace body is needed.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide a uniform heat cycle temperature regulating mechanism for a boiler.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a boiler is with even thermal cycle mechanism that adjusts temperature, includes furnace body, cleaning element and thermal cycle part, cleaning element include water supply part and cleaning scraper blade, cleaning scraper blade set up inside the furnace body, cleaning scraper blade include scraper blade and pivot, the scraper blade set up in the pivot side, the pivot be hollow structure, water supply part pass through the pipeline and link to each other with cleaning scraper blade's pivot, thermal cycle part set up on the inside wall of furnace body, thermal cycle part releasable steam.
The scraper blade is hollow structure, the scraper blade be linked together with the inside hollow structure of pivot, the scraper blade on be equipped with the hole for water spraying.
The thermal cycle part comprises a spiral pipe, and the spiral pipe is arranged around the inner side wall of the whole furnace body.
The heat circulation component also comprises a heating box, a condensing pipe and a heating pipe, wherein steam can be sent into the spiral pipe through the heating pipe by the heating box, and condensed water in the boiler returns to the heating box through the condensing pipe.
The circulating part also comprises a water tank and a pressure pump, the condenser pipe is connected with the water tank, the water tank is connected with the pressure pump, and the pressure pump is connected with the heating box.
The heating box is internally provided with a liquid level sensor.
The water supply part comprises a water tank and a booster pump.
The rotary shaft is connected with the boiler through a rotary groove and a rotary block, the rotary block is arranged in the rotary groove, and the rotary shaft is connected with the rotary block.
Compared with the prior art, the utility model has the beneficial effects that:
according to the scheme, the interior of the furnace body is cleaned through the rotating scraping plate in the cleaning part, meanwhile, the scraping plate and the rotating shaft are of hollow structures, the joint of the rotating shaft and the furnace body is connected with the rotating block through the rotating groove, and the water supply part arranged outside the furnace body is also connected with the rotating block, so that water can be supplied to the rotating shaft during normal rotation. The heat circulation part is used for adjusting the temperature by introducing the water vapor heated in the heating box into the spiral pipe, and a condensing pipe is arranged at the air outlet pipe of the furnace body, so that the water vapor just reaching the condensing temperature is collected and flows into the water tank again, and enters the heating box for heating and vaporization after being pressurized, thereby realizing circulation heating and improving the heat utilization efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the heating box of the present utility model;
FIG. 3 is a schematic view of the structure of the furnace body of the utility model;
FIG. 4 is a schematic view of a structure of a fixing plate according to the present utility model;
FIG. 5 is an enlarged view of area A of FIG. 3;
FIG. 6 is an enlarged view of area B of FIG. 3;
in the figure: 1. a furnace body; 12. a support frame; 17. a fixing plate; 18. a rotating shaft; 2. cleaning the component; 21. cleaning the water tank; 22. cleaning a water pump; 23. a fixed block; 24. a water outlet tank; 25. a rotary groove; 26. a rotating block; 27. a rotating shaft water spraying hole; 28. a fixing plate through hole; 29. a fixed plate spray hole; 3. a thermal cycling component; 31. a condensing tube; 32. a thermal circulation water tank; 33. a heat circulation water pump; 34. a heating box; 35. a display; 36. an electric heating tube; 37. a liquid level sensor; 38. an air outlet pipe; 39. an air inlet pipe; 310. a spiral tube.
Detailed Description
The utility model is further described below in connection with specific embodiments.
As shown in fig. 1, 2 and 3, the present utility model mainly includes a furnace body 1, a cleaning member 2 and a heat circulation member 3.
The furnace body 1 is a main place for heat exchange between high-temperature flue gas and the water cooling wall in the thermal power generation process, and when the high-temperature flue gas is introduced into the furnace body 1, dirt carried by the flue gas can be remained on the inner wall of the furnace body 1.
And the temperature of the furnace body 1 in the during operation needs to be regulated and controlled, so that the steam in the water-cooled wall is prevented from being excessively high in temperature, the steam which causes the excessive high pressure and the excessive high temperature damages the steam turbine used for generating the heat, the temperature of the boiler 1 is controlled by spraying water in the most temperature regulation mode, and the dirt which is remained in the furnace body 1 is contacted with water to form dirt which is more difficult to treat, so that the boiler can only wait for the integral maintenance of the furnace body 1 and then be cleaned manually.
The outside of furnace body 1 is provided with two support frames 12, and the support frame 12 can carry out the adjustment of upper and lower height, is convenient for clear up inside after opening furnace body 1.
Inside the furnace body 1, a cleaning part 2 is arranged to penetrate through the whole furnace body 1, the main parts of the cleaning part 2 comprise a rotating shaft 18 and a fixed plate 17, the rotating shaft 18 penetrates through the center of the furnace body 1, and the fixed plate 17 arranged on the rotating shaft 18 is in contact with the inner side wall of the furnace body 1. A fixed block 23 is arranged on the side wall of the furnace body 1 for installing the rotating shaft 18, a water outlet groove 24 is arranged in the fixed block 23, a rotating groove 25 is arranged on the side surface of the water outlet groove 24, a rotating block 26 is arranged at one end of the rotating shaft 18 for installation, and the rotating block 26 is arranged in the rotating groove 25, and the whole structure is shown in fig. 6.
The cleaning part 2 further comprises a cleaning water tank 21 and a cleaning water pump 22 outside the furnace body 1, wherein the cleaning water tank 21 is connected to the cleaning water pump 22, and the cleaning water pump 22 is connected to a water outlet groove 24 inside the fixed block 23 through a pipeline, so that cleaning water is introduced into the rotating shaft 18.
The side of the rotating shaft 18 is also provided with a plurality of rotating shaft water spraying holes 27, when the rotating shaft 18 rotates, the external cleaning component 2 is filled with water inwards, and the rotating shaft 18 rotates and simultaneously sprays water. When the rotating shaft 18 rotates, the fixed plate 17 abutting against the inner wall of the furnace body 1 also plays a role of a scraping plate to scrape dirt on the inner wall of the furnace body 1.
The inside of the fixed plate 17 is also designed to be hollow, as shown in fig. 4, the hollow part inside the fixed plate 17 is communicated with the rotating shaft 18, water is sent into the fixed plate through hole 28 between the rotating shaft 18 and the fixed plate 17, and water is sprayed outwards through the fixed plate spray hole 29 on the fixed plate 17, especially at the tail end of the fixed plate 17, the self-cleaning effect can be realized, and the scraped dirt is prevented from being stuck on the fixed plate 17.
The heat cycle unit 3 mainly includes a heat cycle water tank 32, a heat cycle water pump 33, a heating tank 34, an air outlet pipe 38, and an air inlet pipe 39.
The air outlet pipe 38 and the air inlet pipe 39 are respectively connected to the top and the bottom of the furnace body 1, the discharged hot steam is conveyed to the condensing pipe 31 from the air outlet pipe 38 at the top, and the input hot steam enters the furnace body from the air inlet pipe 39 at the bottom.
The discharged hot steam enters a condensing pipe 31 to be condensed into condensed water, then enters an external heat circulation water tank 32, is sent into a heating box 34 through a heat circulation water pump 33, is heated into high-temperature hot steam in the heating box 34, and is conveyed into the furnace body 1 through an air inlet pipe 39 to form a complete heat circulation structure.
In order to ensure uniform distribution of the hot steam, a spiral pipe 310 is circumferentially arranged in the furnace body 1, and an air inlet pipe 39 is connected with the spiral pipe 310 so that the hot steam is uniformly sprayed into the furnace body 1 from the spiral pipe 310.
The bottom of the heating box 34 is provided with an electric heating tube 36, a liquid level sensor 37 is further arranged in the heating box, the electric heating tube 36 is responsible for heating water to form hot steam, the liquid level sensor 37 monitors the water level in the heating box 34 in real time, and the electric heating tube 36 is still heated after the water in the heating box 34 is burnt out, so that the electric heating tube 36 is burnt out. A display 35 is further arranged outside the heating box 34, and an operator can see the heating condition in the heating box and the real-time water quantity according to the display 35 to timely operate the heating system.
The scheme of the utility model actually relates to two functions, namely an internal cleaning function formed by the cleaning component 2 alone, and cleaning work is carried out by hanging and sweeping the inner wall of the furnace body 1 through water spraying of the rotating shaft 18 and the fixed plate 17 and rotation of the fixed plate 17, so that dirt in the furnace body 1 is intensively cleaned to the bottom, and a worker can more conveniently carry out cleaning work of a hearth.
The second point is a temperature regulating mechanism inside the furnace body 1, which is realized by the cleaning component 2 and the thermal circulation component 3 together. When the temperature in the furnace body 1 is too high, the rotating shaft 18 is controlled to spray water independently, water is sprayed into the furnace body 1 uniformly through the rotating shaft water spraying holes 27, the temperature in the furnace body 1 is reduced, the sprayed water is vaporized due to the high temperature in the furnace body 1, hot steam is formed and discharged from the air pipe 38, enters the condensing pipe 31 to be condensed into a liquid state, and flows into the thermal circulation component 3 to circulate the hot steam.
When the temperature is too low to meet the heat exchange requirement, the heating box 34 is started, and hot steam is introduced into the spiral pipe 310 through the air inlet pipe 39 for uniform release heating. The heating box 34 is a pressurizing heating box, and can heat the water vapor to a temperature higher than the normal atmospheric vaporization temperature, so as to meet the requirements of adjusting the lifting temperature and preheating when the furnace body 1 works.
After the heating is finished, the hot steam is discharged from the air outlet pipe 38, and enters the circulation of the thermal circulation part 3 again, so that the circulation heating is realized, and the heat utilization rate is improved.
Claims (9)
1. The utility model provides a boiler is with even thermal cycle mechanism that adjusts temperature, its characterized in that includes furnace body, cleaning element and thermal cycle part, cleaning element include water supply part and cleaning scraper blade, cleaning scraper blade set up inside the furnace body, cleaning scraper blade include scraper blade and pivot, the scraper blade set up in the pivot side, the pivot be hollow structure, water supply part pass through the pipeline and link to each other with cleaning scraper blade's pivot, thermal cycle part set up on the inside wall of furnace body, thermal cycle part releasable steam.
2. The uniform heat cycle temperature regulating mechanism for a boiler according to claim 1, wherein the scraping plate is of a hollow structure, the scraping plate is communicated with the hollow structure inside the rotating shaft, and water spraying holes are formed in the scraping plate.
3. The uniform heat cycle temperature adjustment mechanism for a boiler according to claim 1, wherein the heat cycle component comprises a spiral tube disposed around the entire inner side wall of the boiler body.
4. A uniform heat cycle temperature adjustment mechanism for a boiler as set forth in claim 3 wherein said heat cycle means further comprises a heating tank, a condensing tube and a heating tube, said heating tank being adapted to feed steam through the heating tube into the spiral tube, and said condensed water in the boiler being returned to the heating tank through the condensing tube.
5. The uniform heat cycle temperature adjustment mechanism for a boiler according to claim 4, wherein the circulating means further comprises a water tank and a pressurizing pump, the condensing tube is connected to the water tank, the water tank is connected to the pressurizing pump, and the pressurizing pump is connected to the heating tank.
6. The uniform heat cycle temperature regulating mechanism for boiler according to claim 4, wherein a liquid level sensor is arranged in the heating box.
7. The uniform heat cycle temperature adjustment mechanism for boiler according to claim 1, wherein the water supply part comprises a water tank and a booster pump.
8. The uniform heat cycle temperature regulating mechanism for a boiler according to claim 1, wherein a rotating groove and a rotating block are arranged at the joint of the rotating shaft and the boiler, the rotating block is arranged in the rotating groove, and the rotating shaft is connected with the rotating block.
9. The uniform heat cycle temperature regulating mechanism for boiler according to claim 1, wherein a lifting support frame is arranged at the bottom of the boiler body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320996371.4U CN219656037U (en) | 2023-04-27 | 2023-04-27 | Uniform heat circulation temperature adjusting mechanism for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320996371.4U CN219656037U (en) | 2023-04-27 | 2023-04-27 | Uniform heat circulation temperature adjusting mechanism for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219656037U true CN219656037U (en) | 2023-09-08 |
Family
ID=87876650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320996371.4U Active CN219656037U (en) | 2023-04-27 | 2023-04-27 | Uniform heat circulation temperature adjusting mechanism for boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219656037U (en) |
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2023
- 2023-04-27 CN CN202320996371.4U patent/CN219656037U/en active Active
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