CN212584921U - High-pressure return water recovery system for heat transfer oil heat exchanger - Google Patents
High-pressure return water recovery system for heat transfer oil heat exchanger Download PDFInfo
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- CN212584921U CN212584921U CN202020789531.4U CN202020789531U CN212584921U CN 212584921 U CN212584921 U CN 212584921U CN 202020789531 U CN202020789531 U CN 202020789531U CN 212584921 U CN212584921 U CN 212584921U
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Abstract
The utility model provides a be used for conduction oil heat exchanger high pressure return water recovery system, includes steam delivery pipe, water spray desuperheater, high-pressure raceway, conduction oil heat exchanger, conduction oil drainage flash tank, steam delivery pipe is through water spray desuperheater, falls the temperature to about 320 ℃, and pressure keeps unchangeable basically, leads to the conduction oil heat exchanger, the conduction oil heat exchanger passes through high-pressure raceway, and after the heat transfer, high-pressure steam condenses into high-pressure drainage, and pressure is about 7.0Mpa, and temperature 265 ℃ is about, and the conduction oil drainage flash tank of main factory building oxygen removal layer is reconnected to. The system safety system is high, meets the actual demand of the market, and is suitable for large-scale popularization and use.
Description
Technical Field
The utility model relates to a high-pressure return water recovery system indicates to be used for conduction oil heat exchanger high-pressure return water recovery system very much.
Background
In the heat exchange process of the heat conduction oil steam at present, the following 2 modes are mainly adopted for treating the condensate backwater:
1. setting a high-pressure condensate pump: after the high-pressure steam after heat exchange is condensed into water, the water is pressurized by a high-pressure condensate pump and then is pumped into a corresponding boiler water supply main pipe (on the premise that pressure and temperature parameters meet requirements).
2. Setting a flash tank: high-pressure drained water passes through the flash tank, the oxygen remover is removed by steam after flash evaporation, and water is introduced into the oxygen remover.
In the actual project execution process, frequent heat exchanger load adjustment is met, so that the high-pressure condensate drain pump cannot stably run along with the severely changed load.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned problem, it is big to have designed one kind and to have satisfied the heat exchanger load change, again can the safe and reliable operation, and energy loss is used for conduction oil heat exchanger high pressure return water recovery system at acceptable within range.
In order to realize the above-mentioned purpose, the utility model discloses a be used for conduction oil heat exchanger high pressure return water recovery system, including steam delivery pipe, water spray desuperheater, high-pressure raceway, conduction oil heat exchanger, the hydrophobic flash tank of conduction oil, steam delivery pipe is through the water spray desuperheater, falls the temperature for reducing to about 320 ℃, pressure maintains unchangeably basically, leads to the conduction oil heat exchanger, the conduction oil heat exchanger passes through high-pressure raceway, and after the heat transfer, high-pressure steam condenses into the high pressure hydrophobic, and pressure is about 7.0Mpa, and temperature 265 ℃ is about, and the hydrophobic flash tank of conduction oil of reconnection to main factory building oxygen removal layer.
The heat conducting oil heat exchanger is characterized in that a heat load adjusting valve group is arranged at the inlet and the outlet of the heat conducting oil heat exchanger, and a pressure adjusting valve is arranged at the dredging port of the high-pressure water conveying pipe, so that the pressure reducing effect is achieved, the water level requirement in the heat exchanger is guaranteed, and the pressure requirement of a water inlet pipeline of the flash tank is basically met.
According to a further scheme, an inlet valve is arranged on the heat-conducting oil drainage flash tank, the steam side of the heat-conducting oil drainage flash tank is connected with an oxygen removing device steam balancing pipe, the water side of the heat-conducting oil drainage flash tank is connected with an oxygen removing device water balancing pipe, and a continuous blowdown device is arranged at the front end of the inlet valve and is used as a spare for the heat-conducting oil drainage flash tank when the heat-conducting oil drainage flash tank fails.
The further scheme is that a pressure measuring point and a temperature measuring point are arranged in the heat load adjusting valve group and are interlocked with the temperature of an inlet oil pipeline and an outlet oil pipeline of the heat conduction oil side, so that the oil temperature of the inlet oil pipeline and the outlet oil pipeline is kept unchanged, and the heat load of the oil side and the heating steam quantity are coordinated and changed.
The utility model discloses a characteristics and beneficial effect lie in: the system is particularly suitable for a high-temperature and high-pressure parameter heat exchange system with a self-contained power station, when the flash tank normally works, the steam balance pipe and the water balance pipe of the deaerator which are connected are equivalently provided with a container communicated with deaerating steam and water, and the actual operating pressure of the flash tank is slightly higher than that of the deaerator matched with the flash tank, so that water return is ensured, the steam return is stable, when the flash tank breaks down, an inlet valve of the flash tank is closed, the flash tank is switched to a bypass, high-pressure drained water enters continuous drainage, and the steam and water are recycled.
Drawings
Fig. 1 is a schematic view of the specific structure of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1
As shown in fig. 1, the utility model provides a technical scheme, a be used for conduction oil heat exchanger high pressure return water recovery system, including delivery duct, water spray desuperheater 1, high-pressure raceway, conduction oil heat exchanger 2, the hydrophobic flash tank of conduction oil 3, delivery duct is through water spray desuperheater 1, with the temperature drop for reducing to about 320 ℃, pressure keeps unchangeable basically, leads to conduction oil heat exchanger 2, conduction oil heat exchanger 2 passes through high-pressure raceway, and after the heat transfer, high-pressure steam condenses into the high pressure hydrophobic, and pressure is about 7.0Mpa, and temperature about 265 ℃, reconnection to the hydrophobic flash tank of conduction oil 3 on main building except that the oxygen layer.
The further scheme is that a heat load adjusting valve group 4 is arranged at the inlet and the outlet of the heat transfer oil heat exchanger 2, and a pressure adjusting valve is arranged at the dredging opening of the high-pressure water delivery pipe to play a role in pressure reduction, so that the water level requirement in the heat exchanger is ensured, and the pressure requirement of a water inlet pipeline of the flash tank is basically met.
The further scheme is that an inlet valve is arranged on the heat-conducting oil drain flash tank 3, the steam side of the heat-conducting oil drain flash tank 3 is connected with an oxygen removal device steam balance pipe 5, the water side of the heat-conducting oil drain flash tank 3 is connected with an oxygen removal device water balance pipe 6, the front end of the inlet valve is provided with a continuous blowdown device, continuous drainage is used as a spare for the fault of the heat-conducting oil drain flash tank, when the flash tank normally works, the connected deaerator steam balance pipe and deaerator water balance pipe are equivalent to a container communicated with deaerating steam and water, the actual operating pressure of the flash tank is slightly higher than that of a deaerator matched with the deaerator, water return and stable steam return are ensured, when the flash tank has a fault, the inlet valve of the flash tank is closed, the flash tank is switched to a bypass, high-pressure drain enters the continuous drainage, and the, in addition, the continuous blowdown device is used as a spare, so that the system safety system is high.
The further scheme is that a pressure measuring point and a temperature measuring point are arranged in the heat load adjusting valve group 4 and are interlocked with the temperature of an inlet oil pipeline and an outlet oil pipeline of the heat conduction oil side, so that the oil temperature of the inlet oil pipeline and the outlet oil pipeline is kept unchanged, and the heat load of the oil side and the heating steam quantity are coordinated and changed.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a be used for conduction oil heat exchanger high pressure return water recovery system, includes steam delivery pipe, water spray desuperheater (1), high-pressure raceway, conduction oil heat exchanger (2), conduction oil drainage flash tank (3), its characterized in that: the steam delivery pipe leads to the conduction oil heat exchanger (2) through the water spray desuperheater (1), and the conduction oil heat exchanger (2) is connected to the conduction oil drainage flash tank (3) through a high-pressure water delivery pipe.
2. The high-pressure return water recovery system for the heat transfer oil heat exchanger according to claim 1, characterized in that: the heat conducting oil heat exchanger (2) is characterized in that a heat load adjusting valve group (4) is arranged at the inlet and outlet, and a pressure adjusting valve is arranged at the dredging opening of the high-pressure water conveying pipe.
3. The high-pressure return water recovery system for the heat transfer oil heat exchanger according to claim 1, characterized in that: an inlet valve is arranged on the heat conduction oil drainage flash tank (3), the steam side of the heat conduction oil drainage flash tank (3) is connected with an oxygen removing device steam balance pipe (5), the water side of the heat conduction oil drainage flash tank (3) is connected with an oxygen removing device water balance pipe (6), and a continuous blowdown device is arranged at the front end of the inlet valve.
4. The high-pressure return water recovery system for the heat transfer oil heat exchanger according to claim 2, characterized in that: and a pressure measuring point and a temperature measuring point are arranged in the heat load adjusting valve group (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789531.4U CN212584921U (en) | 2020-05-13 | 2020-05-13 | High-pressure return water recovery system for heat transfer oil heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020789531.4U CN212584921U (en) | 2020-05-13 | 2020-05-13 | High-pressure return water recovery system for heat transfer oil heat exchanger |
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| CN212584921U true CN212584921U (en) | 2021-02-23 |
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| CN202020789531.4U Active CN212584921U (en) | 2020-05-13 | 2020-05-13 | High-pressure return water recovery system for heat transfer oil heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451397A (en) * | 2022-08-23 | 2022-12-09 | 华电电力科学研究院有限公司 | Water supply recirculation pipeline system suitable for deep peak shaving of coal-electric machine set |
-
2020
- 2020-05-13 CN CN202020789531.4U patent/CN212584921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451397A (en) * | 2022-08-23 | 2022-12-09 | 华电电力科学研究院有限公司 | Water supply recirculation pipeline system suitable for deep peak shaving of coal-electric machine set |
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