CN210163967U

CN210163967U - Low-energy-consumption plant water supply system

Info

Publication number: CN210163967U
Application number: CN201920651815.4U
Authority: CN
Inventors: 陆效帅; 张庆元; 孙金刚; 侯占龙; 姜守泽
Original assignee: China Energy Conservation (linyi) Environmental Protection Energy Co Ltd; China Environment Protection Group Co Ltd
Current assignee: China Energy Conservation (linyi) Environmental Protection Energy Co Ltd; China Environment Protection Group Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-03-20
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a low energy consumption factory building water supply system, a serial communication port, including two at least cooling towers, two at least cisterns, two at least production and living ponds, two at least equipment circulating pumps, two at least circulating water pumps, two at least living water pumps, two at least production water pumps to and corresponding connecting tube and valve. The utility model has the advantages that: the water pumps with the same functions can be mutually standby, so that the loss caused by water cut and production stop due to water pump failure is avoided; when the environment temperature is low and the requirement on the amount of cooling water is low, part of corresponding pumps can be stopped, so that energy conservation and consumption reduction are realized; when the operation load of the water supply system is not high, a part of the cooling tower can be selected to be shut down, so that the energy conservation and consumption reduction are realized, the steam-water evaporation loss is reduced, and the water resource is saved.

Description

Low-energy-consumption plant water supply system

Technical Field

The utility model relates to a factory building water supply system field especially relates to a low energy consumption factory building water supply system.

Background

The existing factory building water supply system is mostly prepared in a single set, and if the water supply equipment fails, the production and the life are seriously influenced, so that economic loss is caused; some plants are also provided with a plurality of sets of water supply systems, but the water supply systems are independent from each other and cannot be flexibly adjusted according to the environmental temperature and the operation load, so that the energy waste is caused.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model discloses a low energy consumption factory building water supply system, which is characterized in that the system comprises at least two cooling towers, at least two reservoirs, at least two production and living water pools, at least two equipment circulating pumps, at least two circulating water pumps, at least two living water pumps, at least two production water pumps, corresponding connecting pipelines and valves; the water cooled by the cooling tower flows into the reservoir through a pipeline; the inlet water of the production and living water pool is from a municipal pipe network and/or other water sources meeting the requirements; the water suction port of the equipment circulating pump is communicated with the reservoir and is used for taking water from the reservoir by the equipment circulating pump; the water outlet of the equipment circulating pump is communicated with the cooling water inlet of the equipment to be cooled and is used for providing cooling water for the equipment to be cooled; the equipment cooling water outlet needing cooling is communicated with the cooling tower water inlet and is used for conveying cooling water with the temperature increased by the equipment needing cooling to the cooling tower for cooling so as to realize the cyclic utilization of water; the water suction port of the circulating water pump is communicated with the reservoir and is used for the circulating water pump to take water from the reservoir; the water outlet of the circulating water pump is communicated with the cooling water inlet of the condenser and is used for providing cooling water for the condenser; the condenser cooling water outlet is communicated with the cooling tower water inlet and is used for conveying cooling water with the temperature increased by the condenser to the cooling tower for cooling so as to realize the recycling of water; the water suction port of the domestic water pump is communicated with the production and living water pool and is used for taking water from the production and living water pool by the domestic water pump; the living water pump is used for providing living water for a living area; the water suction port of the production water pump is communicated with the production living water pool and is used for the production water pump to take water from the production living water pool; the production water pump is used for providing cooling water for the oil cooler and the air cooler; all the water reservoirs are communicated with each other through pipelines and are provided with corresponding butterfly valves; all equipment cooling water inlets to be cooled are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of the equipment circulating pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the equipment circulating pumps can be mutually reserved; the cooling water inlets of all the condensers are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of the circulating water pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the circulating water pumps can be mutually reserved; the water inlets of all living areas are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of living water pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the living water pumps can be mutually reserved; all the oil coolers and all the cooling water inlets of the air coolers are communicated with each other through pipelines and are provided with corresponding butterfly valves, so that part of the production water pumps are turned off under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the production water pumps can be mutually reserved.

Preferably, all the equipment cooling water outlets to be cooled are communicated with each other through a pipeline and are provided with corresponding butterfly valves; and the cooling water outlets of all the condensers are mutually communicated through pipelines and are provided with corresponding butterfly valves so as to shut down one cooling tower under the condition of non-full-load operation, thereby realizing energy conservation and consumption reduction.

Preferably, the production and living water pool is also used as a fire-fighting water pool, and measures for preventing the water level of the production and living water pool from being lower than the water level of fire-fighting water due to production and living water taking are provided.

Preferably, the system comprises a first cooling tower, a second cooling tower, a first reservoir, a second reservoir, a first production and living water pool, a second production and living water pool, a first equipment circulating pump, a second equipment circulating pump, a first circulating water pump, a second circulating water pump, a first living water pump, a second living water pump, a first production water pump, a second production water pump, corresponding connecting pipelines and valves; the water cooled by the first cooling tower flows into the first reservoir through a pipeline; the water cooled by the second cooling tower flows into the second reservoir through a pipeline; the water suction port of the first equipment circulating pump is communicated with the first reservoir and is used for taking water from the first reservoir by the first equipment circulating pump; the water outlet of the first equipment circulating pump is communicated with a first equipment cooling water inlet needing cooling, and is used for providing cooling water for the first equipment needing cooling; the first equipment cooling water outlet needing cooling is communicated with the first cooling tower water inlet and is used for conveying cooling water with the temperature increased by the first equipment needing cooling to the first cooling tower for cooling so as to realize the recycling of water; the water suction port of the second equipment circulating pump is communicated with the second reservoir and is used for taking water from the second reservoir by the second equipment circulating pump; the water outlet of the second equipment circulating pump is communicated with a cooling water inlet of second equipment to be cooled and used for providing cooling water for the second equipment to be cooled; the cooling water outlet of the second equipment to be cooled is communicated with the water inlet of the second cooling tower and is used for conveying the cooling water with the temperature increased by the second equipment to be cooled to the second cooling tower for cooling, so that the water is recycled; the water suction port of the first circulating water pump is communicated with the first reservoir and is used for taking water from the first reservoir by the first circulating water pump; the water outlet of the first circulating water pump is communicated with the cooling water inlet of the first condenser and is used for providing cooling water for the first condenser; the first condenser cooling water outlet is communicated with the first cooling tower water inlet and is used for conveying cooling water with the temperature increased by the first condenser to the first cooling tower for cooling so as to realize the recycling of water; the water suction port of the second circulating water pump is communicated with the second reservoir and is used for the second circulating water pump to take water from the second reservoir; the water outlet of the second circulating water pump is communicated with the cooling water inlet of the second condenser and is used for providing cooling water for the second condenser; the cooling water outlet of the second condenser is communicated with the water inlet of the second cooling tower and is used for conveying the cooling water with the temperature increased by the second condenser to the second cooling tower for cooling so as to realize the recycling of the water; the water suction port of the first life water pump is communicated with the first life living water pond and is used for taking water from the first life living water pond by the first life water pump; the first domestic water pump is used for providing domestic water for a first living area; the water suction port of the second living water pump is communicated with the second production living water pool and is used for taking water from the second production living water pool by the second living water pump; the second living water pump is used for providing living water for a second living area; the water suction port of the first production water pump is communicated with the first life-producing running water pond and is used for the first production water pump to take water from the first life-producing running water pond; the first production water pump is used for providing cooling water for the first oil cooler and the first air cooler; the water suction port of the second production water pump is communicated with the second production living water pool and is used for taking water from the second production living water pool by the second production water pump; the second production water pump is used for providing cooling water for the second oil cooler and the second air cooler; the first reservoir and the second reservoir are communicated with each other through a pipeline and are provided with a ninth butterfly valve; the first equipment cooling water inlet and the second equipment cooling water inlet which need to be cooled are mutually communicated through a pipeline and are provided with fourth butterfly valves, so that the second equipment circulating pump is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first equipment circulating pump and the second equipment circulating pump can be mutually reserved; the first condenser cooling water inlet and the second condenser cooling water inlet are communicated with each other through a pipeline and are provided with a sixth butterfly valve, so that the second circulating water pump is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first circulating water pump and the second circulating water pump can be mutually reserved; the first living area water inlet and the second living area water inlet are communicated with each other through a pipeline and are provided with seventh butterfly valves, so that the second living water pump is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first living water pump and the second living water pump can be mutually reserved; the first oil cooler, the first air cooler cooling water inlet, the second oil cooler and the second air cooler cooling water inlet are communicated with each other through pipelines and are provided with eighth butterfly valves, so that the second production water pump is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first production water pump and the second production water pump can be mutually reserved.

Preferably, the first equipment cooling water outlet needing cooling and the second equipment cooling water outlet needing cooling are communicated with each other through a pipeline and are provided with a third butterfly valve; the first condenser cooling water outlet and the second condenser cooling water outlet are communicated with each other through a pipeline and are provided with a first butterfly valve, so that the second cooling tower is shut down under the condition of non-full-load operation, and energy conservation and consumption reduction are realized.

Preferably, the device further comprises a first biochemical pump; a second biochemical pump; the water suction port of the first biochemical pump is communicated with the first reservoir and is used for taking water from the first reservoir by the first biochemical pump; the water outlet of the first biochemical pump is communicated with the water inlet of the first water treatment system; the water outlet of the first water treatment system is communicated with the water inlet of the first cooling tower and is used for conveying the water purified by the first water treatment system to the first cooling tower to realize the circulating purification of the water; the water suction port of the second biochemical pump is communicated with the second reservoir and is used for taking water from the second reservoir by the second biochemical pump; the water outlet of the second biochemical pump is communicated with the water inlet of the second water treatment system; the water outlet of the second water treatment system is communicated with the water inlet of the second cooling tower and is used for conveying the water purified by the second water treatment system to the second cooling tower to realize the circulating purification of the water; the water inlet of the first water treatment system and the water inlet of the second water treatment system are communicated with each other through a pipeline, and a fifth butterfly valve is arranged, so that the second biochemical pump is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first biochemical pump and the second biochemical pump can be mutually reserved; the water outlet of the first water treatment system and the water outlet of the second water treatment system are communicated with each other through a pipeline and are provided with a second butterfly valve.

The utility model has the advantages that: the water pumps with the same functions can be mutually standby, so that the loss caused by water cut and production stop due to water pump failure is avoided; when the environment temperature is low and the requirement on the amount of cooling water is low, part of corresponding pumps can be stopped, so that energy conservation and consumption reduction are realized; when the operation load of the water supply system is not high, a part of the cooling tower can be selected to be shut down, so that the energy conservation and consumption reduction are realized, the steam-water evaporation loss is reduced, and the water resource is saved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an illustration of fig. 1.

The parts in the drawings are numbered as follows: a first cooling tower 1; a second cooling tower 2; a first reservoir 3; a second reservoir 4; a first life-producing running water pond 5; a second production and living water pool 6; a first plant circulation pump 7; a second equipment circulating pump 8; a first biochemical pump 9; a second biochemical pump 10; a first circulating water pump 11; a second circulating water pump 12; a first live water pump 13; a second life water pump 14; a first production water pump 15; a second production water pump 16; the first equipment to be cooled 17; a second device to be cooled 18; a first water treatment system 19; a second water treatment system 20; a first condenser 21; a second condenser 22; a first living area 23; a second living area 24; a first oil cooler 25; a second oil cooler 26; a first air cooler 27; a second air cooler 28; a first butterfly valve 29; a second butterfly valve 30; a third butterfly valve 31; a fourth butterfly valve 32; a fifth butterfly valve 33; a sixth butterfly valve 34; a seventh butterfly valve 35; an eighth butterfly valve 36; a ninth butterfly valve 37.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making the scope of the invention more clearly defined.

Example 1

Referring to the attached drawings 1-2, the water supply system for the low-energy-consumption factory building comprises a first cooling tower 1, a second cooling tower 2, a first water storage tank 3, a second water storage tank 4, a first production and living water tank 5, a second production and living water tank 6, a first equipment circulating pump 7, a second equipment circulating pump 8, a first circulating water pump 11, a second circulating water pump 12, a first living water pump 13, a second living water pump 14, a first production water pump 15, a second production water pump 16, corresponding connecting pipelines and valves; the water cooled by the first cooling tower 1 flows into the first reservoir 3 through a pipeline; the water cooled by the second cooling tower 2 flows into the second reservoir 4 through a pipeline; the water suction port of the first equipment circulating pump 7 is communicated with the first water reservoir 3, and the first equipment circulating pump 7 is used for taking water from the first water reservoir 3; the water outlet of the first equipment circulating pump 7 is communicated with the cooling water inlet of the first equipment 17 to be cooled and is used for providing cooling water for the first equipment 17 to be cooled; the cooling water outlet of the first device 17 to be cooled is communicated with the water inlet of the first cooling tower 1, and is used for conveying the cooling water with the temperature increased by the first device 17 to be cooled to the first cooling tower 1 for cooling, so that the water is recycled; the water suction port of the second equipment circulating pump 8 is communicated with the second water reservoir 4, and the second equipment circulating pump 8 is used for taking water from the second water reservoir 4; the water outlet of the second equipment circulating pump 8 is communicated with the cooling water inlet of the second equipment 18 to be cooled, and is used for providing cooling water for the second equipment 18 to be cooled; the cooling water outlet of the second equipment to be cooled 18 is communicated with the water inlet of the second cooling tower 2, and is used for conveying the cooling water with the temperature increased by the second equipment to be cooled 18 to the second cooling tower 2 for cooling, so that the water is recycled; the water suction port of the first circulating water pump 11 is communicated with the first reservoir 3, and the first circulating water pump 11 is used for taking water from the first reservoir 3; the water outlet of the first circulating water pump 11 is communicated with the cooling water inlet of the first condenser 21 and is used for providing cooling water for the first condenser 21; the cooling water outlet of the first condenser 21 is communicated with the water inlet of the first cooling tower 1, and is used for conveying the cooling water with the temperature increased by the first condenser 21 to the first cooling tower 1 for cooling, so that the water is recycled; the water suction port of the second circulating water pump 12 is communicated with the second reservoir 4, and the second circulating water pump 12 is used for taking water from the second reservoir 4; the water outlet of the second circulating water pump 12 is communicated with the cooling water inlet of the second condenser 22 and is used for providing cooling water for the second condenser 22; the cooling water outlet of the second condenser 22 is communicated with the water inlet of the second cooling tower 2, and is used for conveying the cooling water with the temperature increased by the second condenser 22 to the second cooling tower 2 for cooling, so that the water is recycled; the water suction port of the first living water pump 13 is communicated with the first production living water pool 5, and the first living water pump 13 is used for taking water from the first production living water pool 5; the first domestic water pump 13 is used for providing domestic water for the first living area 23; the water suction port of the second living water pump 14 is communicated with the second production and living water pool 6, and the second living water pump 14 is used for taking water from the second production and living water pool 6; the second domestic water pump 14 is used for providing domestic water for the second living area 24; the water suction port of the first production water pump 15 is communicated with the first production living water pool 5, and the first production water pump 15 is used for taking water from the first production living water pool 5; the first production water pump 15 is used for providing cooling water for the first oil cooler 25 and the first air cooler 27; the water suction port of the second production water pump 16 is communicated with the second production and living water pool 6, and the second production water pump 16 is used for taking water from the second production and living water pool 6; the second production water pump 16 is used for providing cooling water for the second oil cooler 26 and the second air cooler 28; the first reservoir 3 and the second reservoir 4 are communicated with each other through a pipeline and are provided with a ninth butterfly valve 37; the cooling water inlet of the first equipment 17 to be cooled and the cooling water inlet of the second equipment 18 to be cooled are communicated with each other through a pipeline, and a fourth butterfly valve 32 is arranged, so that the second equipment circulating pump 8 is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first equipment circulating pump 7 and the second equipment circulating pump 8 can be mutually reserved; the cooling water inlet of the first condenser 21 and the cooling water inlet of the second condenser 22 are communicated with each other through a pipeline, and a sixth butterfly valve 34 is arranged, so that the second circulating water pump 12 is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first circulating water pump 11 and the second circulating water pump 12 can be mutually reserved; the water inlet of the first living area 23 and the water inlet of the second living area 24 are communicated with each other through a pipeline, and a seventh butterfly valve 35 is arranged, so that the second living water pump 14 is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first living water pump 13 and the second living water pump 14 can be mutually standby; the first oil cooler 25, the first air cooler 27, the second oil cooler 26 and the second air cooler 28 are communicated with each other through a pipeline, and an eighth butterfly valve 36 is arranged, so that the second production water pump 16 is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first production water pump 15 and the second production water pump 16 can be mutually standby.

The cooling water outlet of the first device to be cooled 17 and the cooling water outlet of the second device to be cooled 18 are communicated with each other through a pipeline, and a third butterfly valve 31 is arranged; the cooling water outlet of the first condenser 21 and the cooling water outlet of the second condenser 22 are communicated with each other through a pipeline, and a first butterfly valve 29 is arranged, so that the second cooling tower 2 is shut down under the condition of non-full-load operation, and energy conservation and consumption reduction are realized.

A first biochemical pump 9; a second biochemical pump 10; the water suction port of the first biochemical pump 9 is communicated with the first reservoir 3, and the first biochemical pump 9 is used for taking water from the first reservoir 3; the water outlet of the first biochemical pump 9 is communicated with the water inlet of the first water treatment system 19; the water outlet of the first water treatment system 19 is communicated with the water inlet of the first cooling tower 1, and is used for conveying the water purified by the first water treatment system 19 to the first cooling tower 1 to realize the circulating purification of the water; the water suction port of the second biochemical pump 10 is communicated with the second reservoir 4, and the second biochemical pump 10 is used for taking water from the second reservoir 4; the water outlet of the second biochemical pump 10 is communicated with the water inlet of the second water treatment system 20; the water outlet of the second water treatment system 20 is communicated with the water inlet of the second cooling tower 2, and is used for conveying the water purified by the second water treatment system 20 to the second cooling tower 2, so that the circulating purification of the water is realized; the water inlet of the first water treatment system 19 and the water inlet of the second water treatment system 20 are communicated with each other through a pipeline, and a fifth butterfly valve 33 is arranged, so that the second biochemical pump 10 is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first biochemical pump 9 and the second biochemical pump 10 can be mutually reserved; the water outlet of the first water treatment system 19 and the water outlet of the second water treatment system 20 are communicated with each other through a pipeline, and a second butterfly valve 30 is arranged.

The production and

living water pools

5 and 6 are also used as fire-fighting water pools, and measures are provided for preventing the water level of the production and living

water pools

5 and 6 from being lower than the water level of fire-fighting water due to production and living water taking.

The above, only be the preferred embodiment of the present invention, not for limiting the present invention, all the technical matters of the present invention should be included in any slight modification, equivalent replacement and improvement made to the above embodiments by the technical matters of the present invention within the scope of the present invention.

Claims

1. A water supply system of a low-energy-consumption factory building is characterized by comprising at least two cooling towers, at least two water reservoirs, at least two production and living water pools, at least two equipment circulating pumps, at least two circulating water pumps, at least two living water pumps, at least two production water pumps, corresponding connecting pipelines and valves; the water cooled by the cooling tower flows into the reservoir through a pipeline; the inlet water of the production and living water pool is from a municipal pipe network and/or other water sources meeting the requirements; the water suction port of the equipment circulating pump is communicated with the reservoir and is used for taking water from the reservoir by the equipment circulating pump; the water outlet of the equipment circulating pump is communicated with the cooling water inlet of the equipment to be cooled and is used for providing cooling water for the equipment to be cooled; the equipment cooling water outlet needing cooling is communicated with the cooling tower water inlet and is used for conveying cooling water with the temperature increased by the equipment needing cooling to the cooling tower for cooling so as to realize the cyclic utilization of water; the water suction port of the circulating water pump is communicated with the reservoir and is used for the circulating water pump to take water from the reservoir; the water outlet of the circulating water pump is communicated with the cooling water inlet of the condenser and is used for providing cooling water for the condenser; the condenser cooling water outlet is communicated with the cooling tower water inlet and is used for conveying cooling water with the temperature increased by the condenser to the cooling tower for cooling so as to realize the recycling of water; the water suction port of the domestic water pump is communicated with the production and living water pool and is used for taking water from the production and living water pool by the domestic water pump; the living water pump is used for providing living water for a living area; the water suction port of the production water pump is communicated with the production living water pool and is used for the production water pump to take water from the production living water pool; the production water pump is used for providing cooling water for the oil cooler and the air cooler; all the water reservoirs are communicated with each other through pipelines and are provided with corresponding butterfly valves; all equipment cooling water inlets to be cooled are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of the equipment circulating pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the equipment circulating pumps can be mutually reserved; the cooling water inlets of all the condensers are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of the circulating water pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the circulating water pumps can be mutually reserved; the water inlets of all living areas are mutually communicated through pipelines and are provided with corresponding butterfly valves, so that part of living water pumps are shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the living water pumps can be mutually reserved; all the oil coolers and all the cooling water inlets of the air coolers are communicated with each other through pipelines and are provided with corresponding butterfly valves, so that part of the production water pumps are turned off under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the production water pumps can be mutually reserved.

2. The water supply system for the low-energy-consumption factory building according to claim 1, wherein all the equipment cooling water outlets to be cooled are communicated with each other through a pipeline and are provided with corresponding butterfly valves; and the cooling water outlets of all the condensers are mutually communicated through pipelines and are provided with corresponding butterfly valves so as to shut down one cooling tower under the condition of non-full-load operation, thereby realizing energy conservation and consumption reduction.

3. The system of claim 1, wherein the production and living water pool is also used as a fire pool, and measures are provided to prevent the water level of the production and living water pool from being lower than the water level of fire water due to production and living water intake.

4. A low energy consumption factory building water supply system according to any one of claims 1-3, characterized by comprising a first cooling tower (1), a second cooling tower (2), a first water reservoir (3), a second water reservoir (4), a first production and living water pool (5), a second production and living water pool (6), a first equipment circulating pump (7), a second equipment circulating pump (8), a first circulating water pump (11), a second circulating water pump (12), a first living water pump (13), a second living water pump (14), a first production water pump (15), a second production water pump (16) and corresponding connecting pipes and valves; the water cooled by the first cooling tower (1) flows into the first reservoir (3) through a pipeline; the water cooled by the second cooling tower (2) flows into the second reservoir (4) through a pipeline; the water suction port of the first equipment circulating pump (7) is communicated with the first water reservoir (3) and is used for taking water from the first water reservoir (3) by the first equipment circulating pump (7); the water outlet of the first equipment circulating pump (7) is communicated with the cooling water inlet of the first equipment (17) to be cooled and is used for providing cooling water for the first equipment (17) to be cooled; the cooling water outlet of the first equipment (17) to be cooled is communicated with the water inlet of the first cooling tower (1) and is used for conveying the cooling water with the temperature increased by the first equipment (17) to be cooled to the first cooling tower (1) for cooling so as to realize the cyclic utilization of the water; the water suction port of the second equipment circulating pump (8) is communicated with the second water reservoir (4) and is used for taking water from the second water reservoir (4) by the second equipment circulating pump (8); the water outlet of the second equipment circulating pump (8) is communicated with the cooling water inlet of second equipment (18) to be cooled and is used for providing cooling water for the second equipment (18) to be cooled; the cooling water outlet of the second equipment (18) to be cooled is communicated with the water inlet of the second cooling tower (2) and is used for conveying the cooling water with the temperature increased by the second equipment (18) to be cooled to the second cooling tower (2) for cooling, so that the water can be recycled; the water suction port of the first circulating water pump (11) is communicated with the first reservoir (3) and is used for taking water from the first reservoir (3) by the first circulating water pump (11); the water outlet of the first circulating water pump (11) is communicated with the cooling water inlet of the first condenser (21) and is used for providing cooling water for the first condenser (21); the cooling water outlet of the first condenser (21) is communicated with the water inlet of the first cooling tower (1) and is used for conveying the cooling water with the temperature increased by the first condenser (21) to the first cooling tower (1) for cooling so as to realize the recycling of the water; the water suction port of the second circulating water pump (12) is communicated with the second reservoir (4) and is used for taking water from the second reservoir (4) by the second circulating water pump (12); the water outlet of the second circulating water pump (12) is communicated with the cooling water inlet of the second condenser (22) and is used for providing cooling water for the second condenser (22); the cooling water outlet of the second condenser (22) is communicated with the water inlet of the second cooling tower (2) and is used for conveying the cooling water with the temperature increased by the second condenser (22) to the second cooling tower (2) for cooling so as to realize the recycling of the water; the water suction port of the first domestic water pump (13) is communicated with the first production and living water pool (5) and is used for taking water from the first production and living water pool (5) by the first domestic water pump (13); the first domestic water pump (13) is used for providing domestic water for the first living area (23); the water suction port of the second living water pump (14) is communicated with the second production and living water pool (6) and is used for taking water from the second production and living water pool (6) by the second living water pump (14); the second living water pump (14) is used for providing living water for a second living area (24); the water suction port of the first production water pump (15) is communicated with the first production and living water pool (5) and is used for taking water from the first production and living water pool (5) by the first production water pump (15); the first production water pump (15) is used for providing cooling water for the first oil cooler (25) and the first air cooler (27); the water suction port of the second production water pump (16) is communicated with the second production and living water pool (6) and is used for taking water from the second production and living water pool (6) by the second production water pump (16); the second production water pump (16) is used for providing cooling water for the second oil cooler (26) and the second air cooler (28); the first reservoir (3) and the second reservoir (4) are communicated with each other through a pipeline and are provided with a ninth butterfly valve (37); the cooling water inlet of the first equipment (17) to be cooled and the cooling water inlet of the second equipment (18) to be cooled are communicated with each other through a pipeline, and a fourth butterfly valve (32) is arranged, so that the second equipment circulating pump (8) is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first equipment circulating pump (7) and the second equipment circulating pump (8) can be mutually reserved; the cooling water inlet of the first condenser (21) and the cooling water inlet of the second condenser (22) are communicated with each other through a pipeline, and a sixth butterfly valve (34) is arranged, so that the second circulating water pump (12) is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first circulating water pump (11) and the second circulating water pump (12) can be mutually reserved; the water inlet of the first living area (23) and the water inlet of the second living area (24) are communicated with each other through a pipeline, and a seventh butterfly valve (35) is arranged, so that the second living water pump (14) is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first living water pump (13) and the second living water pump (14) can be mutually reserved; the first oil cooler (25), the first air cooler (27) cooling water inlet, the second oil cooler (26) and the second air cooler (28) cooling water inlet are communicated with each other through pipelines, and an eighth butterfly valve (36) is arranged, so that the second production water pump (16) is turned off under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first production water pump (15) and the second production water pump (16) can be mutually reserved.

5. The plant water supply system according to claim 4, characterized in that the first equipment (17) to be cooled and the second equipment (18) to be cooled are connected with each other through a pipe and provided with a third butterfly valve (31); the cooling water outlet of the first condenser (21) and the cooling water outlet of the second condenser (22) are communicated with each other through a pipeline, and a first butterfly valve (29) is arranged, so that the second cooling tower (2) is shut down under the condition of non-full-load operation, and energy conservation and consumption reduction are realized.

6. A plant water supply system with low energy consumption according to claim 5, characterized in that it also comprises a first biochemical pump (9); a second biochemical pump (10); the water suction port of the first biochemical pump (9) is communicated with the first reservoir (3) and is used for taking water from the first reservoir (3) by the first biochemical pump (9); the water outlet of the first biochemical pump (9) is communicated with the water inlet of the first water treatment system (19); the water outlet of the first water treatment system (19) is communicated with the water inlet of the first cooling tower (1) and is used for conveying the water purified by the first water treatment system (19) to the first cooling tower (1) to realize the circulating purification of the water; the water suction port of the second biochemical pump (10) is communicated with the second reservoir (4) and is used for taking water from the second reservoir (4) by the second biochemical pump (10); the water outlet of the second biochemical pump (10) is communicated with the water inlet of the second water treatment system (20); the water outlet of the second water treatment system (20) is communicated with the water inlet of the second cooling tower (2) and is used for conveying the water purified by the second water treatment system (20) to the second cooling tower (2) to realize the circulating purification of the water; the water inlet of the first water treatment system (19) and the water inlet of the second water treatment system (20) are communicated with each other through a pipeline, and a fifth butterfly valve (33) is arranged, so that the second biochemical pump (10) is shut down under the condition of non-full-load operation, energy conservation and consumption reduction are realized, and the first biochemical pump (9) and the second biochemical pump (10) can be mutually reserved; the water outlet of the first water treatment system (19) and the water outlet of the second water treatment system (20) are communicated with each other through a pipeline, and a second butterfly valve (30) is arranged.