Circulating water supply system

Abstract

The utility model discloses a circulating water supply system which comprises a first water inlet main pipeline provided with a first check valve and a first isolating valve; a second isolating valve is arranged on the second water inlet main pipeline, and a first pressurizing component is mounted on the second water inlet main pipeline; the third water inlet main pipeline is communicated with the second water inlet main pipeline, and a third isolating valve is arranged on the third water inlet main pipeline; the booster pump water inlet main pipe is communicated with the third water inlet main pipeline, and the booster pump water inlet main pipe is communicated with the water purification station clarification tank water inlet main pipe through a second booster component; and the circulating water return main pipe is communicated with the booster pump water inlet main pipe. The circulating water supply system is respectively connected with the water source of the reservoir and the water source of the water plant, so that one group is used and the other group is standby, the normal supply of circulating water is ensured, and the use efficiency of the circulating water supply system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circulating water pipelines, and in particular relates to a circulating water supply system. Background Art

[0002] A circulating water supply system refers to a water supply system in which used water is recycled after being treated, and only a small amount of water lost during the circulation is obtained from the water source. It is a water-saving water supply system. In the circulating water supply system, cooling towers are often used to cool the cooling water for reuse.

[0003] In the prior art, when the cooling water tower is shut down for inspection, the circulating water supply system needs to be interrupted, which cannot meet the normal supply of circulating water and reduces the utilization efficiency of the circulating water supply system. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a circulating water supply system to solve the technical defects that the circulating water supply system needs to be interrupted during the shutdown inspection of the cooling water tower, which cannot meet the normal supply of circulating water and reduces the utilization efficiency of the circulating water supply system.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating water supply system, comprising a first water inlet main line, which is connected to the circulating water inlet main pipe, and the first water inlet main line is provided with a first check valve and a first isolation valve; a second water inlet main line, the second water inlet main line is provided with a second isolation valve, one end of the second water inlet main line is connected with the first water inlet main line, and the second water inlet main line is installed with a first boosting component; a third water inlet main line, the third water inlet main line is connected with the second water inlet main line, and the third water inlet main line is provided with a third isolation valve; a booster pump inlet main pipe, the booster pump inlet main pipe is connected with the third water inlet main pipe, the booster pump inlet main pipe is provided with an eighth isolation valve, and the booster pump inlet main pipe is connected with the water inlet main pipe of the clarifier of the water purification station through the second boosting component; a circulating water return main pipe, the circulating water return main pipe is connected with the booster pump inlet main pipe, and the circulating water return main pipe is provided with a sixth isolation valve.

[0006] As a further solution of the utility model, the first boosting component includes a first boosting pipeline fixedly connected to the second water inlet main pipeline, a fourth isolation valve and a fifth isolation valve are provided on the first boosting pipeline, a second check valve and a first boosting water pump are also provided on the first boosting pipeline, and the second check valve and the first boosting water pump are located between the fourth isolation valve and the fifth isolation valve.

[0007] As a further solution of the utility model, a first pressure gauge and a second thermometer are provided on the first water inlet main line, and the first pressure gauge is provided with a pressure alarm.

[0008] As a preferred solution of the utility model, the second boosting component includes a plurality of second boosting pipelines, and the second boosting pipelines are provided with a second boosting water pump and a ninth isolation valve.

[0009] As a preferred solution of the utility model, a second pressure gauge and a second thermometer are provided on the circulating water return main pipe, and a pressure alarm is provided on the second pressure gauge.

[0010] As a further preferred embodiment of the present invention, the circulating water return main pipe is connected to a drainage pipeline, one end of the drainage pipeline is connected to a rainwater system, and a seventh isolation valve is provided on the drainage pipeline.

[0011] Compared with the prior art, the circulating water supply system provided by the utility model has the following beneficial effects: the utility model connects the circulating water supply system to a water source, and the water pump supplies water during normal operation, while the booster pump supplies water through the water inlet main pipe in case of a failure, so as to eliminate the water pump failure and re-switch, so as to achieve one group in use and one group in standby, thereby ensuring the normal supply of circulating water and improving the utilization efficiency of the circulating water supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 Schematic diagram of the pipeline of the embodiment of the utility model.

[0014] Reference numerals:

[0015] 1. First water inlet main pipeline; 101. First check valve; 102. First isolation valve; 103. First pressure gauge; 104. First thermometer;

[0016] 2. Second water inlet main line; 201. Second isolation valve;

[0017] 3. The third water inlet main line; 301. The third isolation valve;

[0018] 4. First booster pipeline; 401. Fourth isolation valve; 402. Second check valve; 403. First booster water pump; 404. Fifth isolation valve;

[0019] 5. Circulating water return main pipe; 501. Second pressure gauge; 502. Second thermometer; 503. Sixth isolation valve;

[0020] 6. Drainage pipeline; 601. Seventh isolation valve;

[0021] 7. Booster pump water inlet main pipe; 701. Eighth isolation valve;

[0022] 8. Second booster pipeline; 801. Second booster water pump; 802. Ninth isolation valve;

[0023] 9. Main water inlet pipe of the clarifier tank of the water purification station. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] See attached Figure 1 As shown, a circulating water supply system according to an embodiment of the utility model comprises a first water inlet main line 1 , a second water inlet main line 2 , a third water inlet main line 3 , a booster pump water inlet main line 7 and a circulating water return main line 5 .

[0028] One end of the first water inlet main line 1 is connected to the circulating water inlet main pipe, and a first check valve 101 and a first isolation valve 102 are provided on the first water inlet main line 1 .

[0029] A second isolating valve 201 is provided on the second water inlet main line 2 . One end of the second water inlet main line 2 is communicated with the first water inlet main line 1 . A first pressurizing component is installed on the second water inlet main line 2 .

[0030] The third water inlet main line 3 is in communication with the second water inlet main line 2 , and a third isolation valve 301 is provided on the third water inlet main line 3 .

[0031] The booster pump water inlet main pipe 7 is connected to the third water inlet main line 3, and an eighth isolation valve 701 is provided on the booster pump water inlet main pipe 7. The booster pump water inlet main pipe 7 is connected to the water inlet main pipe 9 of the water purification station clarifier through the second boosting component;

[0032] The circulating water return main pipe 5 is connected to the booster pump water inlet main pipe 7 , and a sixth isolation valve 503 is provided on the circulating water return main pipe 5 .

[0033] The above technical solution ensures the normal supply of circulating water and improves the use efficiency of a circulating water supply system in an embodiment of the utility model.

[0034] Furthermore, the first boosting component includes a first boosting pipeline 4 fixedly connected to the second water inlet main pipeline 2, and a fourth isolation valve 401 and a fifth isolation valve 404 are provided on the first boosting pipeline 4. The first boosting pipeline 4 is also provided with a second check valve 402 and a first boosting water pump 403, and the second check valve 402 and the first boosting water pump 403 are located between the fourth isolation valve 401 and the fifth isolation valve 404.

[0035] The provision of the first boosting pipeline 4 and the first boosting water pump 403 can increase the low water pressure and flow rate of the circulating water, thereby ensuring the normal operation of the circulating water supply.

[0036] The first water inlet main pipeline 1 is provided with a first pressure gauge 103 and a first thermometer 104 , and the first pressure gauge 103 is provided with a pressure alarm.

[0037] When the water pressure in the third water inlet main pipeline 3 is low, the first pressure gauge 103 automatically alarms and starts the first booster pump 403 to increase the water pressure, thereby improving the circulating water delivery flow rate.

[0038] The second boosting component includes a plurality of second boosting pipelines 8 , on which a second boosting water pump 801 and a ninth isolation valve 802 are provided.

[0039] When the circulating water delivery pressure inside the booster pump water inlet main pipe 7 is low, the second booster water pump 801 can increase the delivery flow from the booster pump water inlet main pipe 7 to the water purification station clarifier water inlet main pipe 9.

[0040] A second pressure gauge 501 and a second thermometer 502 are provided on the circulating water return main pipe 5 , and a pressure alarm is provided on the second pressure gauge 501 .

[0041] When the water pressure of the circulating water transported by the circulating water return main pipe 5 is low, the second pressure gauge 501 automatically alarms and starts the second booster pump 801 to increase the pressure, thereby improving the circulating water transport flow rate.

[0042] The circulating water return main pipe 5 is connected to a drainage pipeline 6 , one end of which is connected to a rainwater system. A seventh isolation valve 601 is provided on the drainage pipeline 6 .

[0043] When the internal water pressure of the first water inlet main line 1, the second water inlet main line 2 and the third water inlet main line 3 is lower than 0.2MPa, an alarm is set. When it is lower than 0.18MPa, the first booster pump 403 is started, the first check valve 101 is automatically closed, and the water source is taken from the third water inlet main line 3 to facilitate the inspection of reservoir water pump failure.

[0044] When the cooling water tower is under maintenance, the first check valve 101, the first isolating valve 102, the third isolating valve 301 and the sixth isolating valve 503 are opened, the second isolating valve 201 and the eighth isolating valve 701 are closed, and the water plant circulating water pump and the corresponding isolating valves are gradually shut down to cut off the return water to the cooling water tower and the water intake from the cooling water tower pool. The circulating water system is turned into open operation, that is, water is supplied by the reservoir or water plant source, and is discharged to the water inlet main of the water purification station booster pump to take desalted water after use by the generator air cooler and oil cooler and other equipment. A DN150 drain pipe is used to adjust the matching of the circulating water volume and the desalted water volume.

[0045] During normal operation, water is supplied by the reservoir pump. In case of failure, water is supplied by the water inlet main of the water plant's booster pump. After the pump failure is eliminated, the reservoir water supply is switched back and the water plant pump is stopped to ensure the normal supply of circulating water and improve the utilization efficiency of the circulating water supply system.

[0046] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A circulating water supply system, characterized in that include: A first water inlet main line (1), which is connected to the circulating water inlet main pipe, and a first check valve (101) and a first isolation valve (102) are provided on the first water inlet main line (1); a second water inlet main line (2), wherein a second isolation valve (201) is provided on the second water inlet main line (2), a front end of the second water inlet main line (2) is in communication with the first water inlet main line (1), and a first pressurizing component is installed on the second water inlet main line (2); a third water inlet main line (3), the third water inlet main line (3) being in communication with the second water inlet main line (2), and a third isolation valve (301) being provided on the third water inlet main line (3); a booster pump water inlet main pipe (7), the booster pump water inlet main pipe (7) being in communication with the third water inlet main pipe (3), the booster pump water inlet main pipe (7) being provided with an eighth isolation valve (701), and the booster pump water inlet main pipe (7) being in communication with a water purification station clarifier water inlet main pipe (9) via a second boosting component; A circulating water return main pipe (5), the circulating water return main pipe (5) being in communication with the booster pump water inlet main pipe (7), and a sixth isolation valve (503) being provided on the circulating water return main pipe (5).

2. A circulating water supply system according to claim 1, characterized in that: The first boosting component comprises a first boosting pipeline (4) connected to the second water inlet main pipeline (2); a fourth isolation valve (401) and a fifth isolation valve (404) are provided on the first boosting pipeline (4); a second check valve (402) and a first boosting water pump (403) are also provided on the first boosting pipeline (4); the second check valve (402) and the first boosting water pump (403) are located between the fourth isolation valve (401) and the fifth isolation valve (404).

3. A circulating water supply system according to claim 2, characterized in that: The first water inlet main pipeline (1) is provided with a first pressure gauge (103) and a first thermometer (104), and the first pressure gauge (103) is provided with a pressure alarm.

4. A circulating water supply system according to claim 1, characterized in that: The second boosting component comprises a plurality of second boosting pipelines (8), and the second boosting pipelines (8) are provided with a second boosting water pump (801) and a ninth isolation valve (802).

5. A circulating water supply system according to claim 1, characterized in that: The circulating water return main pipe (5) is provided with a second pressure gauge (501) and a second thermometer (502), and the second pressure gauge (501) is provided with a pressure alarm.

6. A circulating water supply system according to claim 5, characterized in that: The circulating water return main pipe (5) is connected to a drainage pipeline (6), the drainage pipeline (6) is connected to a rainwater system, and a seventh isolation valve (601) is provided on the drainage pipeline (6).

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