CN219656645U - Air cooling unit steam exhaust device provided with liquid level auxiliary regulating system - Google Patents
Air cooling unit steam exhaust device provided with liquid level auxiliary regulating system Download PDFInfo
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- CN219656645U CN219656645U CN202320771136.7U CN202320771136U CN219656645U CN 219656645 U CN219656645 U CN 219656645U CN 202320771136 U CN202320771136 U CN 202320771136U CN 219656645 U CN219656645 U CN 219656645U
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- 239000007788 liquid Substances 0.000 title claims abstract description 61
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 138
- 230000001502 supplementing effect Effects 0.000 claims abstract description 70
- 238000009833 condensation Methods 0.000 claims abstract description 6
- 230000005494 condensation Effects 0.000 claims abstract description 6
- 230000003020 moisturizing effect Effects 0.000 claims abstract 4
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of air cooling unit equipment, in particular to a steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system, which comprises a condensation water supplementing and water supplementing pipeline; the input end of the steam exhaust device A is communicated with a condensation water supplementing and supplementing pipeline; the lower part of the steam exhaust device B is communicated with the lower part of the steam exhaust device A through a steam exhaust device hot well communication pipe, and the upper part of the steam exhaust device B is provided with an overflow hole; the upper part of the buffer water tank is communicated with the overflow hole through a pipeline A; the input of moisturizing pump is through pipeline B and buffer tank's bottom intercommunication, the output of moisturizing pump is through pipeline C and congeal moisturizing water supply pipeline intercommunication. The utility model has simple structure, effectively avoids the corrosion of the steam exhaust guide plate, the steam exhaust pipeline and accessory equipment of the steam exhaust device, and prolongs the service life; the liquid level of the steam exhaust device is reasonably controlled, so that the vacuum of the unit is prevented from being reduced due to the fact that the liquid level is too high, the operation economy is improved, the tripping accident of the condensate pump is prevented from being caused due to the fact that the liquid level is too low, and the operation safety is improved.
Description
Technical Field
The utility model relates to the technical field of air cooling unit equipment, in particular to a steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system.
Background
In recent years, in order to further realize energy conservation and environmental protection, a part of thermal power generating units implement wet cooling to air cooling, but due to the limitation of the existing sites, the arrangement of a water return pipeline cannot realize an optimal scheme, so that the air cooling island is very easy to drain water, a large amount of condensed water is accumulated in the water return pipeline of the air cooling island, when the unit is rapidly loaded or high-load for a long time, a steam exhaust device is easy to lack water, a large amount of water is needed, the unit is simultaneously supplemented with water to cause insufficient water supply of desalted water, the unit is in a deep peak regulation period after load reduction or long time, the liquid level of the steam exhaust device is obviously increased, the steam exhaust guide plate and the steam exhaust pipeline of the steam exhaust device are frequently submerged, the long-term operation can cause serious corrosion of the steam exhaust guide plate and auxiliary equipment thereof, the safety of the unit is influenced, and meanwhile, the liquid level of the steam exhaust device is high and the vacuum of the unit is also influenced, and the economical efficiency is reduced.
Aiming at the problem, the currently available methods mainly comprise: when the liquid level of the steam exhaust device is too high, the machine is connected with more auxiliary steam and the boiler is utilized for pollution discharge to increase water consumption, so that not only is the effect poor, but also the running economy of the machine set is reduced; when the liquid level of the steam exhaust device is rapidly reduced, the liquid level of the steam exhaust device is maintained by supplementing a large amount of water for a long time.
When the liquid level of the steam exhaust device is too high, more auxiliary steam is connected and boiler pollution discharge is increased, so that the steam exhaust device has a certain effect on reducing the liquid level of the steam exhaust device, but the effect is poor, condensed water in the steam exhaust device still continuously bypasses the steam exhaust guide plate and the steam exhaust pipeline for a long time, meanwhile, the water consumption is increased, and the economy of a unit is reduced. When the liquid level of the steam exhaust device is rapidly reduced, the liquid level of the steam exhaust device is maintained by supplementing a large amount of water for a long time, the consumption of desalted water is huge, if the water is supplemented by other units in the whole factory at the same time when meeting the power grid early and late peaks, the supply of desalted water is extremely easy to be insufficient, even the danger of the depressurization of a desalted water main pipe occurs, the accident of tripping a condensate pump due to the low liquid level of the steam exhaust device occurs, and the liquid level of the steam exhaust device is further aggravated to be too high after the water is stored and flows back in the night power grid valley period.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an air cooling unit steam exhaust device provided with a liquid level auxiliary regulating system so as to solve the problem in the prior art.
The technical scheme for solving the technical problems is as follows: an air cooling unit steam exhaust device provided with a liquid level auxiliary regulating system comprises a condensation water supplementing and supplementing pipeline;
the input end of the steam exhaust device A is communicated with the condensed water supplementing pipeline;
the lower part of the steam exhaust device B is communicated with the lower part of the steam exhaust device A through a steam exhaust device hot well communication pipe so that the liquid levels of the steam exhaust device A and the steam exhaust device B are kept consistent, and the upper part of the steam exhaust device B is provided with an overflow hole;
the upper part of the buffer water tank is communicated with the overflow hole through a pipeline A;
the water replenishing pump, the input of water replenishing pump pass through pipeline B with buffer tank's bottom intercommunication, the output of water replenishing pump pass through pipeline C with congeal water replenishing pipeline intercommunication.
The beneficial effects of the utility model are as follows: the utility model has simple structure, when the liquid level of the steam exhaust device B exceeds the overflow port, the liquid level of the steam exhaust device B automatically overflows to the buffer water tank until the liquid level of the steam exhaust device B falls below the overflow port, so that the liquid levels of the steam exhaust device A and the steam exhaust device B are ensured to be below the steam exhaust guide plates of the steam exhaust device A and the steam exhaust device B and do not overflow the guide plates for a long time, when the liquid levels of the steam exhaust device A and the steam exhaust device B drop sharply, the water supplementing pump is started to supplement water to the steam exhaust device A in an interlocking manner, and when the liquid levels of the steam exhaust device A and the steam exhaust device B meet the requirement or the liquid level of the buffer water tank drops to the water supplementing pump impermissible value, the water supplementing pump is stopped in an interlocking manner; the corrosion of a steam exhaust guide plate, a steam exhaust pipeline and accessory equipment of the steam exhaust device is effectively avoided, and the service life is prolonged; the liquid level of the steam exhaust device is reasonably controlled, so that the vacuum of the unit is prevented from being reduced due to the fact that the liquid level is too high, the operation economy is improved, the tripping accident of the condensate pump is prevented from being caused due to the fact that the liquid level is too low, and the operation safety is improved.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, an overflow drain valve is arranged on the pipeline A.
The beneficial effects of adopting the further scheme are as follows: the overflow drain valve is arranged to enable only condensed water to pass through, so that no steam is discharged when the liquid level of the steam exhaust device is lower than the overflow port.
Further, the pipeline A is further provided with an overflow drain bypass valve, an overflow drain front valve and an overflow drain rear valve, the overflow drain front valve and the overflow drain rear valve are respectively connected in series with two sides of the overflow drain valve, and the overflow drain bypass valve, the overflow drain front valve and the overflow drain rear valve are arranged in parallel.
The beneficial effects of adopting the further scheme are as follows: the setting of overflow drainage front valve and overflow drainage back valve can make things convenient for the installation maintenance of overflow drainage valve, and the setting of overflow drainage bypass valve mainly has two effects: firstly, can cut to bypass operation when the main road breaks down or needs to be overhauld, secondly, keep opening overflow drainage bypass valve and be used for buffer tank's evacuation and washing under the main road isolation state when the unit starts.
Further, a water supplementing inlet valve is arranged on the pipeline B, and a water supplementing outlet valve is arranged on the pipeline C.
The beneficial effects of adopting the further scheme are as follows: and the maintenance of the water supplementing pump is convenient.
Further, a water supplementing check valve is arranged on the pipeline B or the pipeline C.
The beneficial effects of adopting the further scheme are as follows: and the backflow of condensed water is avoided.
Further, a water supplementing pressure measuring device is arranged on the pipeline C.
The beneficial effects of adopting the further scheme are as follows: the water pressure in the pipeline C can be monitored by the arrangement of the water supplementing pressure measuring device.
Further, a water supplementing flow measuring device is arranged on the pipeline C.
The beneficial effects of adopting the further scheme are as follows: the water supplementing quantity can be monitored by the water supplementing quantity measuring device.
Further, the top of the buffer water tank is connected with a top emptying valve, and the bottom of the buffer water tank is provided with a bottom drainage valve.
The beneficial effects of adopting the further scheme are as follows: the setting of top exhaust valve is convenient for empty the buffer tank, and the setting of bottom drain valve can be with the water in the buffer tank discharge.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a water supplementing and regulating front valve; 2. supplementing water and regulating a door; 3. a water supplementing and regulating back valve; 4. a water supplementing and regulating bypass valve; 5. a steam exhaust device A; 6. a steam exhaust device B; 7. a steam exhaust device hot well connecting pipe; 8. overflow drain front valve; 9. an overflow drain valve; 10. overflow drain back valve; 11. an overflow drain bypass valve; 12. a buffer water tank; 13. a top drain valve; 14. a pipeline A; 15. a bottom drain valve; 16. a pipeline B; 17. a make-up inlet valve; 18. a water supplementing pump; 19. a water replenishing check valve; 20. a make-up outlet valve; 21. a water replenishing pressure measuring device; 22. a water supplementing flow measuring device; 23. a pipe C; 24. and (5) condensing and supplementing water pipeline.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1, the embodiment of the utility model comprises a condensed water supplementing and supplementing water pipeline 24, wherein a water supplementing and regulating valve front valve 1, a water supplementing and regulating valve 2 and a water supplementing and regulating valve rear valve 3 which are sequentially connected in series and a water supplementing and regulating valve bypass valve 4 which is connected with the water supplementing and regulating valve front valve 1, the water supplementing and regulating valve 2 and the water supplementing and regulating valve rear valve 3 in parallel are arranged on the condensed water supplementing and supplementing water pipeline 24; the input end of the steam exhaust device A5 is communicated with the condensed water supplementing pipeline 24; the lower part of the steam exhaust device B6 is communicated with the lower part of the steam exhaust device A5 through a steam exhaust device hot well communication pipe 7 so that the liquid level of the steam exhaust device A5 is consistent with that of the steam exhaust device B6, and an overflow hole is formed in the upper part of the steam exhaust device B6; a buffer water tank 12, wherein the upper part of the buffer water tank 12 is communicated with the overflow hole through a pipeline A14; the water supplementing pump 18, the input end of the water supplementing pump 18 is communicated with the bottom of the buffer water tank 12 through a pipeline B16, and the output end of the water supplementing pump 18 is communicated with the condensation water supplementing and supplementing pipeline 24 through a pipeline C23. In this embodiment, preferably, the upper edge of the overflow hole is not less than 100mm from the bottom horizontal line of the steam exhaust guide plate of the steam exhaust device B6, when the liquid level of the steam exhaust device B6 exceeds the overflow hole, the steam exhaust device B6 overflows to the buffer water tank 12 automatically until the liquid level falls below the overflow hole, so that the liquid levels of the steam exhaust device A5 and the steam exhaust device B6 are below the steam exhaust guide plate and cannot overflow the steam exhaust guide plate for a long time, when the liquid level of the steam exhaust device drops sharply, the water supplementing pump 18 is started to supplement water to the steam exhaust device A5 in a preferential interlocking manner, when the liquid levels of the steam exhaust device A5 and the steam exhaust device B6 meet the requirement or the liquid level of the buffer water tank 12 falls to the water supplementing pump 18 not to the allowable value, the water supplementing pump 18 is stopped in an interlocking manner, and if the water supplementing is still needed by the steam exhaust device A5 and the steam exhaust device B6 at this moment, the original condensation water supplementing water source is started in a interlocking manner.
In the embodiment of the utility model, the buffer water tank 12 is provided with an in-situ liquid level meter and a remote liquid level transmitter, and meanwhile, the liquid level of the buffer water tank 12 is configured to be higher by one value, higher by two values, lower by one value, lower by two values and audible and visual alarm and the liquid level is not low in switching value, and the water supplementing pump 18 is provided with a remote current display; the water supplementing pump 18 is provided with interlocking starting and stopping conditions, the water supplementing pump 18 from the buffer water tank 12 to the steam exhaust device A5 is provided with interlocking starting and stopping logic, and the water supplementing pump 18 is started in an interlocking manner when the following conditions are met at the same time: 1) AGC input of a unit, 2) liquid level of a steam exhaust device reaches a value lower than one value, and 3) liquid level of a buffer water tank 12 is not low; the water replenishment pump 18 is stopped by interlocking when any one of the following conditions is satisfied: 1) When the liquid level of the steam exhaust device reaches a normal liquid level set value, 2) the liquid level of the buffer water tank 12 is low to give an alarm in a binary value.
In the embodiment of the utility model, the overflow drain valve 9 is arranged on the pipeline A14, so that only condensed water can pass through, and no steam is discharged when the liquid level of the steam exhaust device is lower than the overflow hole.
The pipeline A14 is also provided with an overflow drain bypass valve 11, an overflow drain front valve 8 and an overflow drain rear valve 10, the overflow drain front valve 8 and the overflow drain rear valve 10 are respectively connected in series with the two sides of the overflow drain valve 9, and the overflow drain bypass valve 11, the overflow drain valve 9, the overflow drain front valve 8 and the overflow drain rear valve 10 are arranged in parallel; the water supplementing inlet valve 17 is arranged on the pipeline B16, and the water supplementing outlet valve 20 is arranged on the pipeline C23, so that the water supplementing pump 18 can be overhauled conveniently. The setting of overflow drainage front valve 8 and overflow drainage back valve 10 can make things convenient for the installation and maintenance of overflow drainage valve 9, and the setting of overflow drainage bypass valve 11 mainly has two effects: firstly, the bypass operation can be switched to when the main road is out of order or needs to be overhauled, and secondly, the overflow drain bypass valve 11 is opened for vacuumizing and flushing the buffer water tank 12 under the condition that the main road is kept in an isolated state when the unit is started.
In the embodiment of the present utility model, the water replenishing check valve 19 is disposed on the pipe B16 or the pipe C23 to prevent the condensed water from flowing back. The pipeline C23 is provided with a water supplementing pressure measuring device 21 and a water supplementing flow measuring device 22. The device is used for monitoring the water supplementing water pressure and the water supplementing quantity. The top of the buffer water tank 12 is connected with a top drain valve 13, the bottom of the buffer water tank 12 is provided with a bottom drain valve 15, the top drain valve 13 is convenient for draining the buffer water tank 12, and the bottom drain valve 15 can drain water in the buffer water tank 12 and is mainly used for water drainage maintenance when in shutdown, and the buffer water tank 12 is kept tightly closed in normal operation. The buffer tank 12 is connected to the exhaust device B6 via a pipe C23, and is part of a vacuum system, so that the evacuation and flushing of the buffer tank 12 is performed in synchronization with the vacuum system.
The beneficial effects of the utility model are as follows:
1. the utility model has simple structure and reliable system, and can realize the automatic control of the liquid level of the steam exhaust device in a reasonable and safe range in the whole process;
2. the utility model effectively avoids the waste of high-quality working medium discharged;
3. the utility model effectively avoids the corrosion of the steam exhaust guide plate, the steam exhaust pipeline and accessory equipment of the steam exhaust device, and prolongs the service life;
4. according to the utility model, the buffer water tank 12 is used for supplementing water to the steam exhaust device, so that the simultaneous water supplementing pressure of the whole plant unit is effectively relieved, the occurrence of the pressure loss accident of the desalted water main pipe is avoided, and the operation safety is improved;
5. the utility model reasonably controls the liquid level of the steam exhaust device, prevents the liquid level from being too high, reduces the vacuum of the unit, improves the operation economy, prevents the tripping accident of the condensate pump from occurring when the liquid level is too low, and improves the operation safety.
In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. An air cooling unit steam exhaust device provided with a liquid level auxiliary regulating system is characterized by comprising a condensation water supplementing pipeline (24);
the input end of the steam exhaust device A (5) is communicated with the condensed water supplementing pipeline (24);
the lower part of the steam exhaust device B (6) is communicated with the lower part of the steam exhaust device A (5) through a steam exhaust device hot well connecting pipe (7), and the upper part of the steam exhaust device B (6) is provided with an overflow hole;
a buffer water tank (12), wherein the upper part of the buffer water tank (12) is communicated with the overflow hole through a pipeline A (14);
the water filling pump (18), the input of water filling pump (18) pass through pipeline B (16) with the bottom intercommunication of buffer tank (12), the output of water filling pump (18) pass through pipeline C (23) with congeal moisturizing water supply pipeline (24) intercommunication.
2. The air cooling unit exhaust device with the liquid level auxiliary regulating system according to claim 1, wherein an overflow drain valve (9) is arranged on the pipeline A (14).
3. The air cooling unit steam exhaust device with the liquid level auxiliary regulating system according to claim 2, wherein an overflow drain bypass valve (11), an overflow drain front valve (8) and an overflow drain rear valve (10) are further arranged on the pipeline A (14), the overflow drain front valve (8) and the overflow drain rear valve (10) are respectively connected in series to two sides of the overflow drain valve (9), and the overflow drain bypass valve (11) is connected in parallel with the overflow drain valve (9), the overflow drain front valve (8) and the overflow drain rear valve (10).
4. A steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system according to any one of claims 1 to 3, wherein a water supplementing inlet valve (17) is arranged on the pipeline B (16), and a water supplementing outlet valve (20) is arranged on the pipeline C (23).
5. A steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system according to any one of claims 1 to 3, wherein a water supplementing check valve (19) is arranged on the pipeline B (16) or the pipeline C (23).
6. A steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system according to any one of claims 1 to 3, wherein a water supplementing pressure measuring device (21) is arranged on the pipeline C (23).
7. A steam exhaust device of an air cooling unit provided with a liquid level auxiliary regulating system according to any one of claims 1 to 3, wherein a water supplementing flow measuring device (22) is arranged on the pipeline C (23).
8. An air cooling unit exhaust device provided with a liquid level auxiliary regulating system according to any one of claims 1 to 3, characterized in that the top of the buffer water tank (12) is connected with a top exhaust valve (13), and the bottom of the buffer water tank (12) is provided with a bottom drain valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320771136.7U CN219656645U (en) | 2023-04-10 | 2023-04-10 | Air cooling unit steam exhaust device provided with liquid level auxiliary regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320771136.7U CN219656645U (en) | 2023-04-10 | 2023-04-10 | Air cooling unit steam exhaust device provided with liquid level auxiliary regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219656645U true CN219656645U (en) | 2023-09-08 |
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ID=87881070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320771136.7U Active CN219656645U (en) | 2023-04-10 | 2023-04-10 | Air cooling unit steam exhaust device provided with liquid level auxiliary regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219656645U (en) |
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2023
- 2023-04-10 CN CN202320771136.7U patent/CN219656645U/en active Active
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