CN212389390U - Auxiliary engine cooling water system of gas-steam combined cycle unit - Google Patents
Auxiliary engine cooling water system of gas-steam combined cycle unit Download PDFInfo
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- CN212389390U CN212389390U CN202020771647.5U CN202020771647U CN212389390U CN 212389390 U CN212389390 U CN 212389390U CN 202020771647 U CN202020771647 U CN 202020771647U CN 212389390 U CN212389390 U CN 212389390U
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Abstract
The utility model discloses a gas-steam combined cycle unit auxiliary engine cooling water system, which belongs to the technical field of the auxiliary engine cooling water system of a thermal power plant, and comprises auxiliary engine equipment, a shutdown closed cooling water pipeline, a shutdown circulating water pipeline, a closed circulating cooling water pipeline, an open circulating cooling water pipeline and a closed cooling water heat exchange group; the shutdown closed cooling water pipeline is connected with the closed circulating cooling water pipeline in parallel, one end of the shutdown closed cooling water pipeline and one end of the closed circulating cooling water pipeline which are connected in parallel are connected with a cooling water outlet end of the auxiliary equipment, the other end of the shutdown closed cooling water pipeline is connected with a heat exchange inlet end of a closed cooling water heat exchange group, and a heat exchange outlet end of the closed cooling water heat exchange group is connected with a cooling water inlet end of the auxiliary; the open type circulating cooling water pipeline and the shutdown circulating water pipeline are communicated to the cooling water inlet end of the closed type cooling water heat exchange unit, so that the combined cycle unit can better adapt to the peak shaving operation mode of a domestic large-capacity gas-steam combined cycle unit in a day-start and night-stop two-shift mode, the power load consumption of the unit during shutdown and turning-up is reduced, and the operation economy of a power plant is improved.
Description
Technical Field
The utility model belongs to the technical field of thermal power factory auxiliary engine cooling water system, particularly, relate to a gas-steam combined cycle unit auxiliary engine cooling water system.
Background
The domestic high-capacity gas-steam combined cycle unit is generally provided with a peak shaving function, the unit is started and stopped frequently, and more units are started and stopped in a two-shift operation mode at night. After the unit is shut down, in order to facilitate the next time of timely starting and preventing the deformation of the rotor of the unit, the unit needs to be turned for a long time. In the process of stopping and turning up the vehicle, the auxiliary machine cooling water quantity of the unit can be greatly reduced, if the unit is designed and put into operation according to a conventional auxiliary machine cooling water system, the unit cannot be better adapted to the two-shift peak shaving operation mode of the internal combustion engine unit, the electricity load consumption in the period of stopping and turning up the vehicle can be greatly increased, and the operation economy of a power plant can be reduced.
If the existing design of the auxiliary machine cooling water system is adopted, the electric load consumption during the shutdown and turning is large, the peak shaving operation mode of the domestic large-capacity gas turbine unit in two shifts of daily starting and night stopping can not be adapted, and the operation economy of a power plant is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing a gas-steam combined cycle unit auxiliary engine cooling water system is in order to reach the internal large capacity gas-steam combined cycle unit of adaptation that can be better and start the two class system peak regulation mode of stopping at night everyday, reduces the unit and shuts down, the electric load consumption during the barring, improves the purpose of the operation economic nature of power plant.
The utility model discloses the technical scheme who adopts does: an auxiliary cooling water system of a gas-steam combined cycle unit comprises auxiliary equipment, a shutdown and shutdown cold water closing pipeline and a shutdown circulating water pipeline which are synchronously opened and closed, a closed circulating cooling water pipeline and an open circulating cooling water pipeline which are synchronously opened and closed, and a closed cooling water heat exchange unit; the shutdown closed cooling water pipeline is connected with the closed circulating cooling water pipeline in parallel, one end of the shutdown closed cooling water pipeline, which is connected with the closed circulating cooling water pipeline in parallel, is connected with a cooling water outlet end of the auxiliary equipment, the other end of the shutdown closed circulating cooling water pipeline is connected with a heat exchange inlet end of the closed cooling water heat exchange group, and a heat exchange outlet end of the closed cooling water heat exchange group is connected with a cooling water inlet end of the auxiliary equipment; the open type circulating cooling water pipeline and the shutdown circulating water pipeline are communicated to the cooling water inlet end of the closed type cooling water heat exchange group, and the cooling water outlet end of the closed type cooling water heat exchange group is connected with an open type cold water return water pipeline.
Furthermore, the shutdown closed-cold water pipeline comprises a valve A, an inlet filter screen, a shutdown closed circulating cooling water pump, a check valve and a valve B which are sequentially communicated, and the shutdown closed-cold water pipeline is used for supplying water from auxiliary equipment to the closed cooling water heat exchange unit when the unit shuts down and turns on the locomotive.
Further, closed circulation cooling water pipeline includes two at least closed circulation cooling water branch roads, each closed circulation cooling water branch road parallel connection and each closed circulation cooling water branch road all includes the A valve, entry filter screen, closed circulation cooling water pump, check valve and the B valve that communicate in proper order, and a plurality of closed circulation cooling water branch roads can wherein be one way or the closed circulation cooling water pump operation in the multichannel, and idle closed circulation cooling water pump carries out reserve to ensure the reliability of pipeline.
Further, open cycle cooling water pipeline includes open cycle cooling water entry filter screen group and two at least open cycle cooling water branch roads, each open cycle cooling water branch road parallel connection and parallelly connected one end and open cycle cooling water entry filter screen group link, the other end with closed cooling water heat transfer group's cooling end connection of intaking, a plurality of open cycle cooling water branch roads can wherein open cycle cooling water pump operation in one or the multichannel, and idle open cycle cooling water pump is reserved to ensure the reliability of pipeline.
Further, open cycle cooling water entry filter screen group includes the entry filter screen and connects in the A valve and the B valve at entry filter screen both ends respectively, be connected with A valve or B valve between the exit end of the entrance point of A valve and B valve to filter the cooling intake, prevent that the inner line from blockking up.
Furthermore, each open-type circulating cooling water branch comprises a valve A, an open-type circulating cooling water pump, a check valve and a valve B which are sequentially communicated, and the high-capacity and high-power closed-type circulating cooling water pump ensures the supply of required cooling water when the unit normally operates.
Further, the shutdown circulating water pipeline comprises an inlet filter screen, a shutdown circulating water pump, a check valve and a valve B which are sequentially communicated, wherein the inlet end of the inlet filter screen is communicated into the water tank to provide low-flow cooling water when the unit shuts down the jigger, so that the cooling water quantity requirement required in the state of shutting down the jigger is met.
Furthermore, the closed cooling water heat exchange group comprises at least two closed cooling water heat exchangers, the heat exchange inlet ends of the closed cooling water heat exchangers are connected in parallel and then are respectively communicated with the shutdown closed cooling water pipeline and the closed circulating cooling water pipeline, the cooling water inlet ends of the closed cooling water heat exchangers are connected in parallel and then are respectively communicated with the shutdown circulating water pipeline and the open circulating cooling water pipeline, and the reliability of the heat exchange process is ensured by the closed cooling water heat exchangers.
Furthermore, each closed cooling water heat exchanger's heat transfer entrance point and cooling water inlet end all are equipped with the A valve, and its heat transfer exit end and cooling water outlet end all are equipped with the B valve to switch different closed cooling water heat exchangers and can drop into the pipe-line system in service.
Furthermore, the valve A and the valve B are both set as electric shutoff valves so as to realize synchronous control of the electric shutoff valves through electric signals.
The utility model has the advantages that:
1. adopt the utility model provides a gas-steam combined cycle unit auxiliary engine cooling water system, it closes the cold water pipeline through shutting down, closed circulative cooling water pipeline, open circulative cooling water pipeline, shut down circulating water pipeline and closed cooling water heat transfer group, in cooling off auxiliary equipment through closed cooling water heat transfer group, the user can be according to the unit at normal operating or unit in the shutdown barring, close cold water pipeline and shut down circulating water pipeline to shutting down of synchronous opening and close, closed circulative cooling water pipeline and the open circulative cooling water pipeline that opens and close in step carry out the state switching, with adapt to the internal large capacity gas-steam combined cycle unit and open and shut down two class system peak regulation mode of stopping night day, reduce the unit and shut down, the electric load consumption during the barring, improve the operation economy of power plant.
Drawings
FIG. 1 is a schematic diagram of the overall piping arrangement of an auxiliary cooling water system of a gas-steam combined cycle unit provided by the present invention;
the drawings are labeled as follows:
1-auxiliary equipment, 2-ninth electric shutoff valve, 3-first inlet filter screen, 4-shutdown closed circulation cooling water pump, 5-first check valve, 6-tenth electric shutoff valve, 7-twelfth electric shutoff valve, 8-third inlet filter screen, 9-closed circulation cooling water pump A, 10-third check valve, 11-thirteenth electric shutoff valve, 12-fourteenth electric shutoff valve, 13-fourth inlet filter screen, 14-closed circulation cooling water pump B, 15-fourth check valve, 16-fifteenth electric shutoff valve, 17-third electric shutoff valve, 18-closed cooling water heat exchanger A, 19-second electric shutoff valve, 20-first electric shutoff valve, 21-fourth electric shutoff valve, 22-fifth electric shutoff valve, 23-closed cooling water heat exchanger B, 24-eighth electric shutoff valve, 25-seventh electric shutoff valve, 26-sixth electric shutoff valve, 27-sixteenth electric shutoff valve, 28-fifth inlet filter screen, 29-seventeenth electric shutoff valve, 30-eighteenth electric shutoff valve, 31-nineteenth electric shutoff valve, 32-open circulating cooling water pump A, 33-fifth check valve, 34-twentieth electric shutoff valve, 35-twenty-first electric shutoff valve, 36-open circulating cooling water pump B, 37-sixth check valve, 38-twenty-second electric shutoff valve, 39-eleventh electric shutoff valve, 40-second check valve, 41-shut-down circulating water pump, 42-second inlet filter screen, 43-open cold water return pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Example 1
Adopt the utility model provides a gas-steam combined cycle unit auxiliary engine cooling water system to adapt to the internal large capacity gas-steam combined cycle unit and start night and stop two classes system peak regulation operational mode, reduce the unit and shut down, the electric load consumption during barring, improve the operation economy of power plant, as shown in fig. 1, mainly adopt following mode design:
the method mainly comprises the steps of cooling the auxiliary equipment 1 of the gas-steam combined cycle unit, returning water from the auxiliary equipment 1 to the auxiliary equipment after heat exchange and cooling, and ensuring that enough cooling water can be supplied to the auxiliary equipment 1 no matter the auxiliary equipment is operated or a machine is shut down.
Regard as the part of heat exchange with closed cooling water heat transfer group, closed cooling water heat transfer group includes closed cooling water heat exchanger A18 and closed cooling water heat exchanger B23, the parallelly connected back of closed cooling water heat exchanger A18 and closed cooling water heat exchanger B23's heat transfer entrance point communicates with shutting down closed cold water pipeline and closed circulation cooling water pipeline respectively, and closes cooling water heat exchanger A18 and closed cooling water heat exchanger B23's cooling water inlet end communicates with shutting down circulation water pipeline and open circulation cooling water pipeline respectively after parallelly connected. A first electric shutoff valve 20 and a second electric shutoff valve 19 are respectively arranged at the heat exchange inlet end and the cooling water inlet end of the closed cooling water heat exchanger A18, and a third electric shutoff valve 17 and a fourth electric shutoff valve 21 are respectively arranged at the heat exchange outlet end and the cooling water outlet end of the closed cooling water heat exchanger A18; the heat exchange inlet end and the cooling water inlet end of the closed cooling water heat exchanger B23 are respectively provided with a fifth electric shutoff valve 22 and a sixth electric shutoff valve 26, the heat exchange outlet end and the cooling water outlet end of the closed cooling water heat exchanger B23 are respectively provided with a seventh electric shutoff valve 25 and an eighth electric shutoff valve 24, and the outlet ends of the fourth electric shutoff valve 21 and the eighth electric shutoff valve 24 are connected in parallel and then connected to the open cold water return pipeline 43.
The system comprises a shutdown cold water shut-off pipeline and a shutdown circulating water pipeline which are synchronously opened and closed, and has the following main application scenes: when the unit normally operates, closing and stopping the cold water pipeline and the circulating water pipeline; when the unit stops the locomotive and the locomotive drives, the shutdown cold water closing pipeline and the shutdown circulating water pipeline are started to operate. The shutdown closed-cold water pipeline comprises a ninth electric shutoff valve 2, a first inlet filter screen 3, a shutdown closed-cycle cooling water pump 4, a first check valve 5 and a tenth electric shutoff valve 6 which are sequentially communicated, wherein the inlet end of the ninth electric shutoff valve 2 is connected to the cooling water outlet end of the auxiliary equipment 1, and the outlet end of the tenth electric shutoff valve 6 is connected to the port of the first electric shutoff valve 20 and the port of the fifth electric shutoff valve 22 after the inlet ends are connected in parallel; the shutdown circulating water pipeline comprises a second inlet filter screen 42, a shutdown circulating water pump 41, a second check valve 40 and an eleventh electric shutoff valve 39 which are sequentially communicated, the inlet end of the second inlet filter screen is communicated to the water pool, and the outlet end of the eleventh electric shutoff valve 39 is connected to the port formed by connecting the inlet end of the second electric shutoff valve 19 and the inlet end of the sixth electric shutoff valve 26 in parallel.
The system comprises a closed circulation cooling water pipeline and an open circulation cooling water pipeline which are opened and closed synchronously, and has the following main application scenes: when the unit normally operates, the closed circulation cooling water pipeline and the open circulation cooling water pipeline with high capacity and high power are started to operate; when the locomotive is shut down, the closed circulation cooling water pipeline and the open circulation cooling water pipeline with large capacity and high power are closed and shut down. Wherein, the closed circulation cooling water pipeline comprises a closed circulation cooling water branch A and a closed circulation cooling water branch B which are connected in parallel, the closed circulation cooling water branch A comprises a twelfth electric shutoff valve 7, a third inlet filter screen 8, a closed circulation cooling water pump A9, a third check valve 10 and a thirteenth electric shutoff valve 11 which are sequentially communicated, the closed circulation cooling water branch B comprises a fourteenth electric shutoff valve 12, a fourth inlet filter screen 13, a closed circulation cooling water pump B14, a fourth check valve 15 and a fifteenth electric shutoff valve 16 which are sequentially communicated, the inlet ends of the twelfth electric shutoff valve 7 and the fourteenth electric shutoff valve 12 are connected in parallel and then connected to the cooling water outlet end of the auxiliary equipment 1, the outlet ends of the thirteenth electric shutoff valve 11 and the fifteenth electric shutoff valve 16 are connected in parallel and then connected to the inlet ends of the first electric shutoff valve 20 and the fifth electric shutoff valve 22 in parallel, and the closed circulation cooling water pump A9 and the closed circulation cooling water pump B14 are operated in a standby mode by operating one pump for the other.
The open cycle cooling water pipeline comprises an open cycle cooling water inlet filter screen group, an open cycle cooling water branch A and an open cycle cooling water branch B, wherein the open cycle cooling water branch A is connected with the open cycle cooling water branch B in parallel, one end of the open cycle cooling water branch A is connected with the open cycle cooling water inlet filter screen group in parallel, and the other end of the open cycle cooling water branch A is connected with the cooling water inlet filter screen group of the closed cycle cooling water heat exchange group. The open-type circulating cooling water inlet filter screen group comprises a fifth inlet filter screen 28, a sixteenth electric shutoff valve 27 and a seventeenth electric shutoff valve 29 which are respectively connected to two ends of the fifth inlet filter screen 28, an eighteenth electric shutoff valve 30 is connected between an inlet end of the sixteenth electric shutoff valve 27 and an outlet end of the seventeenth electric shutoff valve 29, and preferably, the open-type circulating cooling water branch A comprises a nineteenth electric shutoff valve 31, an open-type circulating cooling water pump A32, a fifth check valve 33 and a twentieth electric shutoff valve 34 which are sequentially communicated; the open type circulating cooling water branch B comprises a twenty-first electric shutoff valve 35, an open type circulating cooling water pump B36, a sixth check valve 37 and a twenty-second electric shutoff valve 38 which are sequentially communicated, the inlet ends of a nineteenth electric shutoff valve 31 and the twenty-first electric shutoff valve 35 are connected in parallel and then connected to the cooling water outlet end of the open type circulating cooling water inlet filter screen group, and the outlet ends of the twentieth electric shutoff valve 34 and the twenty-second electric shutoff valve 38 are connected in parallel and then connected to the cooling water inlet end of the closed type cooling water heat exchange group; the open cycle cooling water pump a32 and the open cycle cooling water pump B36 were operated in a manner that one was operated and the other was kept on standby.
In the above, the shutdown closed cooling water pipeline and the closed circulating cooling water pipeline are connected in parallel, and one end of the two parallel connected pipelines is connected with the cooling water outlet end of the auxiliary equipment 1, the other end of the two parallel connected pipelines is connected with the heat exchange inlet end of the closed cooling water heat exchange group, and the heat exchange outlet end of the closed cooling water heat exchange group is connected with the cooling water inlet end of the auxiliary equipment 1; the open type circulating cooling water pipeline and the shutdown circulating water pipeline are communicated to the cooling water inlet end of the closed type cooling water heat exchange group, and the cooling water outlet end of the closed type cooling water heat exchange group is connected with an open type cold water return water pipeline 43. When the device works specifically, the working principle is as follows:
(1) when the unit normally operates, high-capacity and high-power closed circulating cooling water pumps (2 in total, one for one and one for standby), open circulating cooling water pumps (2 in total, one for one and one for standby) and related pipelines are put into operation to provide cooling water required by normal operation for the unit; at this time, the shutdown closed-cycle cooling water pump 4, the shutdown circulating water pump 41 and related pipelines are shut down and shutdown.
(2) When the unit stops and jiggers, the high-capacity and high-power closed circulation cooling water pump, the open circulation cooling water pump and related pipelines are closed, the low-capacity and low-power shutdown circulation water pump 41 and the shutdown closed circulation cooling water pump 4 are started, low-flow cooling water is provided, and the cooling water quantity requirement required in the shutdown jiggers state is met.
In the present embodiment, the first to twenty-second electric shutoff valves may be the same type of electric shutoff valve, and the first to fifth check valves may be the same type of check valve.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.
Claims (10)
1. An auxiliary cooling water system of a gas-steam combined cycle unit comprises auxiliary equipment and is characterized by also comprising a shutdown and shutdown cold water pipeline and a shutdown circulating water pipeline which are synchronously opened and closed, a closed circulating cooling water pipeline and an open circulating cooling water pipeline which are synchronously opened and closed, and a closed cooling water heat exchange unit; the shutdown closed cooling water pipeline is connected with the closed circulating cooling water pipeline in parallel, one end of the shutdown closed cooling water pipeline, which is connected with the closed circulating cooling water pipeline in parallel, is connected with a cooling water outlet end of the auxiliary equipment, the other end of the shutdown closed circulating cooling water pipeline is connected with a heat exchange inlet end of the closed cooling water heat exchange group, and a heat exchange outlet end of the closed cooling water heat exchange group is connected with a cooling water inlet end of the auxiliary equipment; the open type circulating cooling water pipeline and the shutdown circulating water pipeline are communicated to the cooling water inlet end of the closed type cooling water heat exchange group, and the cooling water outlet end of the closed type cooling water heat exchange group is connected with an open type cold water return water pipeline.
2. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 1, wherein the shutdown closed-loop cooling water pipeline comprises a valve A, an inlet filter screen, a shutdown closed-loop circulating cooling water pump, a check valve and a valve B which are sequentially communicated.
3. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 1, wherein the closed-cycle cooling water pipeline comprises at least two closed-cycle cooling water branches, each closed-cycle cooling water branch is connected in parallel, and each closed-cycle cooling water branch comprises an a valve, an inlet filter screen, a closed-cycle cooling water pump, a check valve and a B valve which are sequentially communicated.
4. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 1, wherein the open-cycle cooling water pipeline comprises an open-cycle cooling water inlet filter screen set and at least two open-cycle cooling water branches, one end of each open-cycle cooling water branch connected in parallel is connected with the open-cycle cooling water inlet filter screen set, and the other end of each open-cycle cooling water branch is connected with the cooling water inlet end of the closed-cycle cooling water heat exchange set.
5. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 4, wherein the open cycle cooling water inlet filter screen set comprises an inlet filter screen and an A valve and a B valve respectively connected to two ends of the inlet filter screen, and the A valve or the B valve is connected between an inlet end of the A valve and an outlet end of the B valve.
6. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 4, wherein each open cycle cooling water branch comprises an A valve, an open cycle cooling water pump, a check valve and a B valve which are communicated in sequence.
7. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 1, wherein the shutdown circulating water pipeline comprises an inlet filter screen, a shutdown circulating water pump, a check valve and a valve B which are communicated in sequence, and an inlet end of the inlet filter screen is communicated to a water tank.
8. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 1, wherein the closed cooling water heat exchange group comprises at least two closed cooling water heat exchangers, the heat exchange inlet ends of the closed cooling water heat exchangers are connected in parallel and then respectively communicated with a shutdown closed cooling water pipeline and a closed circulation cooling water pipeline, and the cooling water inlet ends of the closed cooling water heat exchangers are connected in parallel and then respectively communicated with a shutdown circulation water pipeline and an open circulation cooling water pipeline.
9. The gas-steam combined cycle unit auxiliary cooling water system as claimed in claim 8, wherein each of the closed cooling water heat exchangers has a valve a at a heat exchange inlet end and a cooling water inlet end, and has a valve B at a heat exchange outlet end and a cooling water outlet end.
10. The gas-steam combined cycle unit auxiliary cooling water system according to any one of claims 2, 3, 5, 6, or 9, wherein the valve a and the valve B are both electric shutoff valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020771647.5U CN212389390U (en) | 2020-05-11 | 2020-05-11 | Auxiliary engine cooling water system of gas-steam combined cycle unit |
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| CN202020771647.5U CN212389390U (en) | 2020-05-11 | 2020-05-11 | Auxiliary engine cooling water system of gas-steam combined cycle unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472853A (en) * | 2020-05-11 | 2020-07-31 | 中国电力工程顾问集团西南电力设计院有限公司 | Auxiliary engine cooling water system of gas-steam combined cycle unit |
| CN114087039A (en) * | 2021-11-15 | 2022-02-25 | 山东日照发电有限公司 | Energy-saving improvement method for cooling mode of closed water heat exchanger after unit shutdown |
-
2020
- 2020-05-11 CN CN202020771647.5U patent/CN212389390U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472853A (en) * | 2020-05-11 | 2020-07-31 | 中国电力工程顾问集团西南电力设计院有限公司 | Auxiliary engine cooling water system of gas-steam combined cycle unit |
| CN111472853B (en) * | 2020-05-11 | 2024-04-12 | 中国电力工程顾问集团西南电力设计院有限公司 | Auxiliary machine cooling water system of gas-steam combined cycle unit |
| CN114087039A (en) * | 2021-11-15 | 2022-02-25 | 山东日照发电有限公司 | Energy-saving improvement method for cooling mode of closed water heat exchanger after unit shutdown |
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