CN218816840U - System is utilized to indirect cold inter-unit cold water high efficiency of air cooling - Google Patents

System is utilized to indirect cold inter-unit cold water high efficiency of air cooling Download PDF

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Publication number
CN218816840U
CN218816840U CN202222622846.1U CN202222622846U CN218816840U CN 218816840 U CN218816840 U CN 218816840U CN 202222622846 U CN202222622846 U CN 202222622846U CN 218816840 U CN218816840 U CN 218816840U
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China
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cooler
vacuum pump
outlet
cooling water
inlet
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CN202222622846.1U
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吕晨峰
安磊
殷结峰
王海涛
牛国平
肖海丰
王晓旭
张佳
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Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Xian Xire Boiler Environmental Protection Engineering Co Ltd
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Abstract

The utility model discloses a high-efficiency cold water utilization system between indirect air cooling units, wherein the outlet of an auxiliary machine cooling water supply main pipe is respectively communicated with the inlet of a vacuum pump A cooler, the inlet of a vacuum pump B cooler, the inlet of a vacuum pump C cooler and the inlet of a vacuum pump front-mounted tubular cooler; an inlet of the auxiliary machine cooling water backwater main pipe is respectively communicated with an outlet of a cooler of the vacuum pump A, an outlet of a cooler of the vacuum pump B, an outlet of a cooler of the vacuum pump C and an outlet of a front tubular cooler of the vacuum pump; the outlet of the indirect air cooling intermediate cold water supply system is respectively communicated with the inlet of the cooler of the vacuum pump A, the inlet of the cooler of the vacuum pump B, the inlet of the cooler of the vacuum pump C, the inlet of the front tubular cooler of the vacuum pump and the heat-releasing side inlet of the closed cooling water plate type heat exchanger.

Description

System is utilized to indirect cold inter-unit cold water high efficiency of room
Technical Field
The utility model belongs to the technical field of indirect air cooling electricity generation, a system is utilized to indirect air cooling inter-unit cold water high efficiency is related to.
Background
The indirect air cooling unit has good economical efficiency due to excellent water saving performance and lower operation backpressure, and is a type mainly adopted by coal-fired power generating units in northern water-deficient areas of China in recent years. The indirect cooling water is a cooling medium of the main machine condenser. The quantity of the indirect cooling water is generally designed according to the average temperature of the whole year, and when the temperature is lower in winter, the cooling capacity of the indirect cooling water is surplus. Meanwhile, in order to ensure safe and reliable operation of auxiliary equipment of a power plant, the power plant is generally provided with a mechanical tower to cool auxiliary cooling water. The mechanical ventilation cooling tower is generally selected for the cooling efficiency of the auxiliary engine mechanical tower, and the mechanical ventilation tower adopts a fan forced ventilation mode, so that the electric energy is consumed by the driving of a carried fan, water is greatly dissipated in the spraying and heat dissipation process, and the operating cost is high. For an indirect air cooling unit, on one hand, the cooling capacity of indirect cold water is surplus in winter, and cannot be fully utilized, and on the other hand, a large amount of water and electricity are consumed in the operation process of an auxiliary engine power tower.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an indirect cold inter-unit cold water high efficiency and utilize system, this system can satisfy the requirement of steam turbine safe operation simultaneously reaching energy-conserving increase purpose.
In order to achieve the purpose, the system for efficiently utilizing the cold water among the indirect air cooling units comprises a closed cooling water plate type heat exchanger, a vacuum pump A cooler, a vacuum pump B cooler, a vacuum pump C cooler, a vacuum pump pre-pipe cooler, an auxiliary machine cooling water supply main pipe, an auxiliary machine cooling water return main pipe, an indirect air cooling inter-cold water supply system, an auxiliary machine cooling water return main pipe and a closed water pump rear valve type cooling water system;
an outlet of the auxiliary machine cooling water supply main pipe is respectively communicated with an inlet of a cooler of the vacuum pump A, an inlet of a cooler of the vacuum pump B, an inlet of a cooler of the vacuum pump C and an inlet of a front-mounted tubular cooler of the vacuum pump;
an inlet of the auxiliary machine cooling water backwater main pipe is respectively communicated with an outlet of a cooler of the vacuum pump A, an outlet of a cooler of the vacuum pump B, an outlet of a cooler of the vacuum pump C and an outlet of a front tubular cooler of the vacuum pump;
an outlet of the indirect air cooling intermediate cold water supply system is respectively communicated with an inlet of a cooler of the vacuum pump A, an inlet of a cooler of the vacuum pump B, an inlet of a cooler of the vacuum pump C, an inlet of a front tubular cooler of the vacuum pump and a heat release side inlet of the closed cooling water plate type heat exchanger;
an inlet of the auxiliary machine cooling water return main pipe is respectively communicated with an outlet of a cooler of the vacuum pump A, an outlet of a cooler of the vacuum pump B, an outlet of a cooler of the vacuum pump C, an outlet of a front tubular cooler of the vacuum pump and a heat release side outlet of the closed cooling water plate type heat exchanger;
an outlet of the closed water pump rear valve type cooling water system is communicated with a heat absorption side inlet of the closed cooling water plate type heat exchanger, and a heat absorption side outlet of the closed cooling water plate type heat exchanger is communicated with a water supply pipeline of the closed cooling water system;
an outlet of the auxiliary machine cooling water supply main pipe is communicated with a heat release side inlet of the closed cooling water plate heat exchanger, and an auxiliary machine cooling water return main pipe is communicated with a heat release side outlet of the closed cooling water plate heat exchanger.
The outlet of the auxiliary machine cooling water supply main pipe is divided into four paths, wherein the first path is communicated with the inlet of the vacuum pump A cooler through a seventh valve, the second path is communicated with the inlet of the vacuum pump B cooler through an eleventh valve, the third path is communicated with the inlet of the vacuum pump C cooler through a fifteenth valve, and the fourth path is communicated with the inlet of the vacuum pump front-mounted tubular cooler through a nineteenth valve.
The inlet of the auxiliary machine cooling water return main pipe is divided into four paths, wherein the first path is communicated with the outlet of the vacuum pump A cooler through an eighth valve, the second path is communicated with the outlet of the vacuum pump B cooler through a twelfth valve, the third path is communicated with the outlet of the vacuum pump C cooler through a sixteenth valve, and the fourth path is communicated with the outlet of the vacuum pump front-mounted tubular cooler through a twentieth valve.
The outlet of the indirect air cooling indirect cold water supply system is divided into five paths, wherein the first path is communicated with the inlet of the cooler of the vacuum pump A through a fifth valve, the second path is communicated with the inlet of the cooler of the vacuum pump B through a ninth valve, the third path is communicated with the inlet of the cooler of the vacuum pump C through a thirteenth valve, the fourth path is communicated with the inlet of the front tubular cooler of the vacuum pump through a seventeenth valve, and the fifth path is communicated with the heat release side inlet of the closed cooling water plate type heat exchanger through the first valve.
The inlet of the auxiliary machine cooling water return main pipe is divided into five paths, wherein the first path is communicated with the outlet of the cooler of the vacuum pump A through a sixth valve, the second path is communicated with the outlet of the cooler of the vacuum pump B through a tenth valve, the third path is communicated with the outlet of the cooler of the vacuum pump C through a fourteenth valve, the fourth path is communicated with the outlet of the front tubular cooler of the vacuum pump through an eighteenth valve, and the fifth path is communicated with the heat release side outlet of the closed cooling water plate type heat exchanger through a second valve.
The outlet of the closed water pump rear valve type cooling water system is communicated with the heat absorption side inlet of the closed cooling water plate type heat exchanger through the closed cooling water inlet door, and the heat absorption side outlet of the closed cooling water plate type heat exchanger is communicated with the water supply pipeline of the closed cooling water system through the closed cooling water outlet door.
An outlet of the auxiliary machine cooling water supply main pipe is communicated with a heat release side inlet of the closed cooling water plate type heat exchanger through a third valve.
And an auxiliary machine cooling water return main pipe is communicated with a heat release side outlet of the closed cooling water plate type heat exchanger through a fourth valve.
The utility model discloses following beneficial effect has:
high-efficient system of utilizing of indirect air cooling unit intergroup cold water when concrete operation, closed cooling water plate heat exchanger, vacuum pump A cooler, vacuum pump B cooler, vacuum pump C cooler and the leading tubular cooler of vacuum pump all are provided with two way cold water sources, cooling water source is got from auxiliary engine cooling water system all the way, water source is got from water cooling system between indirect air cooling all the way, use former auxiliary engine cooling water system at summer operating mode, water cooling system between indirect air cooling is used winter, use auxiliary engine cooling water system when water cooling system between indirect air cooling in winter, the mechanical tower of auxiliary engine cooling water system of stopping, thereby reduce whole factory's power generation water consumption by a wide margin, reduce plant power consumption rate and unit running cost, improve water cooling system equipment utilization between, reach energy saving and consumption reduction's purpose.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a closed cooling water plate heat exchanger, 2 is a cooler of a vacuum pump A, 3 is a cooler of a vacuum pump B, 4 is a cooler of a vacuum pump C, 5 is a front pipe cooler of a vacuum pump, 6 is a closed cooling water inlet door, 7 is a closed cooling water outlet door, 8 is a fourth valve, 9 is a third valve, 10 is a second valve, 11 is a first valve, 12 is a sixth valve, 13 is an eighth valve, 14 is a fifth valve, 15 is a seventh valve, 16 is a tenth valve, 17 is a twelfth valve, 18 is a ninth valve, 19 is an eleventh valve, 20 is a fourteenth valve, 21 is a sixteenth valve, 22 is a thirteenth valve, 23 is a fifteenth valve, 24 is an eighteenth valve, 25 is a twentieth valve, 26 is a seventeenth valve, and 27 is a nineteenth valve.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
A schematic structural diagram according to an embodiment of the present disclosure is shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and some details may be omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the system for efficiently utilizing cold water between indirect air cooling units according to the present invention includes a closed cooling water plate heat exchanger 1, a vacuum pump a cooler 2, a vacuum pump B cooler 3, a vacuum pump C cooler 4, a vacuum pump pre-pipe cooler 5, a closed cooling water inlet door 6, a closed cooling water outlet door 7, a fourth valve 8, a third valve 9, a second valve 10, a first valve 11, a sixth valve 12, an eighth valve 13, a fifth valve 14, a seventh valve 15, a tenth valve 16, a twelfth valve 17, a ninth valve 18, an eleventh valve 19, a fourteenth valve 20, a sixteenth valve 21, a thirteenth valve 22, a fifteenth valve 23, an eighteenth valve 24, a twentieth valve 25, a seventeenth valve 26, and a nineteenth valve 27.
The outlet of the auxiliary machine cooling water supply main pipe is divided into four paths, wherein the first path is communicated with the inlet of the vacuum pump A cooler 2 through a seventh valve 15, the second path is communicated with the inlet of the vacuum pump B cooler 3 through an eleventh valve 19, the third path is communicated with the inlet of the vacuum pump C cooler 4 through a fifteenth valve 23, and the fourth path is communicated with the inlet of the vacuum pump pre-pipe cooler 5 through a nineteenth valve 27.
The inlet of the auxiliary machine cooling water return main pipe is divided into four paths, wherein the first path is communicated with the outlet of the cooler 2 of the vacuum pump A through an eighth valve 13, the second path is communicated with the outlet of the cooler 3 of the vacuum pump B through a twelfth valve 17, the third path is communicated with the outlet of the cooler 4 of the vacuum pump C through a sixteenth valve 21, and the fourth path is communicated with the outlet of the front tubular cooler 5 of the vacuum pump through a twentieth valve 25.
The outlet of the indirect air cooling indirect cold water supply system is divided into five paths, wherein the first path is communicated with the inlet of the cooler 2 of the vacuum pump A through a fifth valve 14, the second path is communicated with the inlet of the cooler 3 of the vacuum pump B through a ninth valve 18, the third path is communicated with the inlet of the cooler 4 of the vacuum pump C through a thirteenth valve 22, the fourth path is communicated with the inlet of the front tubular cooler 5 of the vacuum pump through a seventeenth valve 26, and the fifth path is communicated with the heat release side inlet of the closed cooling water plate type heat exchanger 1 through a first valve 11.
The inlet of the auxiliary machine cooling water return main pipe is divided into five paths, wherein the first path is communicated with the outlet of the cooler 2 of the vacuum pump A through a sixth valve 12, the second path is communicated with the outlet of the cooler 3 of the vacuum pump B through a tenth valve 16, the third path is communicated with the outlet of the cooler 4 of the vacuum pump C through a fourteenth valve 20, the fourth path is communicated with the outlet of the front tubular cooler 5 of the vacuum pump through an eighteenth valve 24, and the fifth path is communicated with the heat release side outlet of the closed cooling water plate type heat exchanger 1 through a second valve 10.
An outlet of the closed water pump rear valve type cooling water system is communicated with a heat absorption side inlet of the closed cooling water plate type heat exchanger 1 through a closed cooling water inlet door 6, and a heat absorption side outlet of the closed cooling water plate type heat exchanger 1 is communicated with a water supply pipeline of the closed cooling water system through a closed cooling water outlet door 7.
An outlet of the auxiliary machine cooling water supply main pipe is communicated with a heat release side inlet of the closed cooling water plate type heat exchanger 1 through a third valve 9, and an auxiliary machine cooling water return main pipe is communicated with a heat release side outlet of the closed cooling water plate type heat exchanger 1 through a fourth valve 8.
The utility model discloses a working process does:
the closed cooling water plate type heat exchanger 1, the vacuum pump A cooler 2, the vacuum pump B cooler 3, the vacuum pump C cooler 4 and the vacuum pump pre-pipe cooler 5 are all provided with two paths of cold water sources, one path of cooling water source is taken from an auxiliary machine cooling water system, and the other path of water source is taken from an indirect air cooling inter-cooling water system. The original auxiliary cooling water system is used in summer, and the indirect air cooling indirect cooling water system is used in winter. In summer working condition, opening a closed cooling water inlet door 6, a closed cooling water outlet door 7, a fourth valve 8, a third valve 9, an eighth valve 13, a seventh valve 15, a twelfth valve 17, an eleventh valve 19, a sixteenth valve 21, a fifteenth valve 23, a twentieth valve 25 and a nineteenth valve 27; the first valve 11, the second valve 10, the sixth valve 12, the fifth valve 14, the tenth valve 16, the ninth valve 18, the fourteenth valve 20, the thirteenth valve 22, the eighteenth valve 24 and the seventeenth valve 26 are closed.
When the device is operated under the working condition of winter, the closed cooling water inlet door 6, the closed cooling water outlet door 7, the first valve 11, the second valve 10, the sixth valve 12, the fifth valve 14, the tenth valve 16, the ninth valve 18, the fourteenth valve 20, the thirteenth valve 22, the eighteenth valve 24 and the seventeenth valve 26 are opened; the fourth valve 8, the third valve 9, the eighth valve 13, the seventh valve 15, the twelfth valve 17, the eleventh valve 19, the sixteenth valve 21, the fifteenth valve 23, the twentieth valve 25 and the nineteenth valve 27 are closed.

Claims (8)

1. The system is characterized by comprising a closed cooling water plate type heat exchanger (1), a vacuum pump A cooler (2), a vacuum pump B cooler (3), a vacuum pump C cooler (4), a vacuum pump pre-pipe cooler (5), an auxiliary machine cooling water supply main pipe, an auxiliary machine cooling water return main pipe, an indirect air cooling indirect cooling water supply system, an auxiliary machine cooling water return main pipe and a closed water pump rear valve type cooling water system;
an outlet of the auxiliary machine cooling water supply main pipe is respectively communicated with an inlet of a cooler (2) of a vacuum pump A, an inlet of a cooler (3) of a vacuum pump B, an inlet of a cooler (4) of a vacuum pump C and an inlet of a front tubular cooler (5) of the vacuum pump;
an inlet of the auxiliary machine cooling water backwater main pipe is respectively communicated with an outlet of the vacuum pump A cooler (2), an outlet of the vacuum pump B cooler (3), an outlet of the vacuum pump C cooler (4) and an outlet of the vacuum pump front-mounted tubular cooler (5);
an outlet of the indirect air cooling intermediate cold water supply system is respectively communicated with an inlet of a cooler (2) of a vacuum pump A, an inlet of a cooler (3) of a vacuum pump B, an inlet of a cooler (4) of a vacuum pump C, an inlet of a front tubular cooler (5) of the vacuum pump and a heat release side inlet of a closed cooling water plate type heat exchanger (1);
an inlet of the auxiliary machine cooling water return main pipe is respectively communicated with an outlet of a cooler (2) of a vacuum pump A, an outlet of a cooler (3) of a vacuum pump B, an outlet of a cooler (4) of a vacuum pump C, an outlet of a pre-pipe cooler (5) of the vacuum pump and a heat release side outlet of a closed cooling water plate type heat exchanger (1);
an outlet of a rear valve type cooling water system of the closed water pump is communicated with a heat absorption side inlet of the closed cooling water plate type heat exchanger (1), and a heat absorption side outlet of the closed cooling water plate type heat exchanger (1) is communicated with a water supply pipeline of the closed water cooling water system;
an outlet of the auxiliary machine cooling water supply main pipe is communicated with a heat release side inlet of the closed cooling water plate type heat exchanger (1), and an auxiliary machine cooling water return main pipe is communicated with a heat release side outlet of the closed cooling water plate type heat exchanger (1).
2. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein the outlet of the auxiliary cooling water supply main pipe is divided into four paths, wherein the first path is communicated with the inlet of the cooler (2) of the vacuum pump A through a seventh valve (15), the second path is communicated with the inlet of the cooler (3) of the vacuum pump B through an eleventh valve (19), the third path is communicated with the inlet of the cooler (4) of the vacuum pump C through a fifteenth valve (23), and the fourth path is communicated with the inlet of the pre-pipe cooler (5) of the vacuum pump through a nineteenth valve (27).
3. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein an inlet of an auxiliary cooling water return main pipe is divided into four paths, wherein the first path is communicated with an outlet of a cooler (2) of a vacuum pump A through an eighth valve (13), the second path is communicated with an outlet of a cooler (3) of a vacuum pump B through a twelfth valve (17), the third path is communicated with an outlet of a cooler (4) of a vacuum pump C through a sixteenth valve (21), and the fourth path is communicated with an outlet of a pre-pipe cooler (5) of the vacuum pump through a twentieth valve (25).
4. The system for efficiently utilizing the cold water among the indirect air-cooling units according to claim 1, wherein an outlet of a water supply system of the indirect air-cooling units is divided into five paths, wherein the first path is communicated with an inlet of a cooler (2) of a vacuum pump A through a fifth valve (14), the second path is communicated with an inlet of a cooler (3) of a vacuum pump B through a ninth valve (18), the third path is communicated with an inlet of a cooler (4) of a vacuum pump C through a thirteenth valve (22), the fourth path is communicated with an inlet of a pre-pipe cooler (5) of the vacuum pump through a seventeenth valve (26), and the fifth path is communicated with an inlet on the heat release side of the closed cooling water plate heat exchanger (1) through a first valve (11).
5. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein an inlet of an auxiliary cooling water return main pipe is divided into five paths, wherein the first path is communicated with an outlet of a cooler (2) of a vacuum pump A through a sixth valve (12), the second path is communicated with an outlet of a cooler (3) of a vacuum pump B through a tenth valve (16), the third path is communicated with an outlet of a cooler (4) of a vacuum pump C through a fourteenth valve (20), the fourth path is communicated with an outlet of a pre-pipe cooler (5) of the vacuum pump through an eighteenth valve (24), and the fifth path is communicated with an outlet on the heat release side of the closed cooling water plate heat exchanger (1) through a second valve (10).
6. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein an outlet of a closed water pump rear valve type cooling water system is communicated with a heat absorption side inlet of the closed cooling water plate type heat exchanger (1) through a closed cooling water inlet door (6), and an outlet of a heat absorption side of the closed cooling water plate type heat exchanger (1) is communicated with a water supply pipeline of the closed cooling water system through a closed cooling water outlet door (7).
7. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein an outlet of an auxiliary cooling water supply main pipe is communicated with a heat release side inlet of the closed cooling water plate heat exchanger (1) through a third valve (9).
8. The system for efficiently utilizing the cold water among the indirect air cooling units according to claim 1, wherein a return water main pipe of the auxiliary cooling water is communicated with a heat release side outlet of the closed cooling water plate heat exchanger (1) through a fourth valve (8).
CN202222622846.1U 2022-09-30 2022-09-30 System is utilized to indirect cold inter-unit cold water high efficiency of air cooling Active CN218816840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222622846.1U CN218816840U (en) 2022-09-30 2022-09-30 System is utilized to indirect cold inter-unit cold water high efficiency of air cooling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222622846.1U CN218816840U (en) 2022-09-30 2022-09-30 System is utilized to indirect cold inter-unit cold water high efficiency of air cooling

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Publication Number Publication Date
CN218816840U true CN218816840U (en) 2023-04-07

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