A high-efficiency circulation device for reducing the turbidity of steam turbine circulating water

Abstract

This utility model discloses a high-efficiency circulation device for reducing the turbidity of turbine circulating water, relating to the field of water circulation technology. It includes a cooling tower with a circulating water forebay on one side, connected to the cooling tower via a pipeline. A bypass water pump is connected to the circulating water forebay. A high-speed filter and a water softener are connected to the outlet of the bypass water pump. The outlets of both the high-speed filter and the water softener are connected to the cooling tower. This utility model improves the operating mode of the high-speed filter by extending the outlet pipe of the circulating water after treatment by the high-speed filter to the other side away from the circulating water forebay. The large circulation system is: Cooling Tower → Circulating Water Forebay → Bypass Water Pump → High-Speed ​​Filter → Cooling Tower A Inlet; the small circulation system is: Cooling Tower → Circulating Water Forebay → Bypass Water Pump → High-Speed ​​Filter → Cooling Tower B Inlet → Circulating Water Forebay. This increases the filtration and replacement volume of turbid water in the circulating water and improves the filtration effect of the high-speed filter.

Description

Technical Field

[0001] This utility model relates to the field of water circulation technology, specifically to a high-efficiency circulation device for reducing the turbidity of steam turbine circulating water. Background Technology

[0002] During operation, circulating water becomes concentrated due to heat exchange and evaporation, thus increasing its hardness. Furthermore, the turbidity gradually increases due to the absorption of dust from the air during heat exchange, leading to a deterioration in water quality. This makes the water more prone to adhering to the stainless steel heat exchange tubes of the turbine condenser, forming scale or deposits. This affects heat exchange, reduces the turbine's vacuum level, causes the turbine's exhaust temperature to rise, reduces the turbine's thermal efficiency, and ultimately reduces power generation efficiency.

[0003] To avoid this situation, the circulating water system is equipped with both a high-speed filter and a water softener. These filters remove sludge and other impurities from the circulating water, while the water softener reduces its hardness. The high-speed filter requires a bypass pump to draw circulating water from the pre-circulating water tank, filters the turbid water, and then returns it to the circulating water tank. In the original design, both the inlet and outlet of the high-speed filter were connected to the circulating water tank, with a distance of no more than ten meters between them: Circulating Water Tank ① → Pre-circulating Water Tank ② → Bypass Pump ③ → High-Speed ​​Filter ④ → Circulating Water Tank ①. Because the inlet and outlet distance of the high-speed filter was too short, a small circulation of filtered water was formed, resulting in low filtration efficiency.

[0004] The design of a water softener also utilizes a side-filter pump to draw water from the circulating water pool to reduce the hardness of the circulating water. The water power source for the normal operation of the water softener comes from the side-filter pump. Due to the diversion of the water source by the water softener, the inlet pressure of the high-speed filter will be lower, which will increase the output of the side-filter pump and cause an increase in energy consumption. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency circulation device for reducing the turbidity of turbine circulating water. The outlet pipe of the circulating water after treatment by a high-speed filter is extended to the other side away from the forebay of the circulating water pool. A small circulation mode is adopted: cooling tower → circulating water forebay → side filter pump → high-speed filter → > cooling tower B port → cooling tower. This increases the filtration and replacement volume of turbid water in the circulating water and improves the filtration effect of the high-speed filter, thereby solving the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency circulation device for reducing the turbidity of steam turbine circulating water, comprising:

[0008] The cooling tower has a circulating water forebay on one side, and the cooling tower and the circulating water forebay are connected by pipes.

[0009] The circulating water forebay is connected to a bypass water pump via a pipeline; the outlet of the bypass water pump is connected to a high-speed filter and a water softener via a pipeline; the high-speed filter and the water softener are connected in parallel, and the outlets of both the high-speed filter and the water softener are connected to the cooling tower.

[0010] The circulating water forebay is also connected to a circulating water pump via a pipe; the outlet of the circulating water pump is connected to a steam generator via a pipe.

[0011] As a further technical solution of this utility model, there are two high-speed filters and two water softeners, and the two high-speed filters are connected in parallel; the two water softeners are connected in parallel.

[0012] As a further technical solution of this utility model, the circulating water pump is provided in multiple ways, and the multiple circulating water pumps are connected in parallel with each other.

[0013] As a further technical solution of this utility model, an industrial water tank is provided on one side of the cooling tower; the industrial water tank is connected to the industrial water front pool through a pipeline; and the industrial water front pool is also connected to an industrial water pump through a pipeline.

[0014] As a further technical solution of this utility model, the steam generator is connected to the inlet of the cooling tower through a pipe, and the hot water generated by the steam generator is transported to the cooling tower for cooling.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The present invention provides an operating mode for improving the filtration efficiency of a high-speed filter: the outlet pipe of the circulating water after being treated by the high-speed filter is extended to the other side away from the forebay of the circulating water pool. The large circulation system is as follows: cooling tower → circulating water forebay → side filter pump → high-speed filter → cooling tower A inlet.

[0017] 2. In this utility model, the small circulation system is as follows: cooling tower → circulating water forebay → side filter pump → high-speed filter → cooling tower B inlet → circulating water pool, which increases the amount of turbid water to be filtered and replaced in the circulating water and improves the filtration effect of the high-speed filter.

[0018] 3. The low-energy water softener operation mode of this utility model: According to the equipment operation design parameters of the water softener, the pressure and temperature of the circulating water return can meet the normal operation of the water softener. Therefore, the original water inlet method of the water softener is adjusted to the side filter water pump water inlet and the circulating water return water. The pressure of the circulating water return water is used to drive the water softener to operate normally, reducing the power consumption of the side filter water pump, while not reducing the water inlet flow of the high-speed filter. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This utility model Figure 1 Another perspective illustration.

[0021] Figure 3 This utility model Figure 1 Top view.

[0022] In the diagram: 1-Cooling tower, 2-Circulating water forebay, 3-Side filter pump, 4-High-speed filter, 5-Water softener, 6-Circulating water pump, 7-Industrial water tank, 8-Industrial water forebay, 9-Industrial water pump. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 In this embodiment of the present invention, a high-efficiency circulation device for reducing the turbidity of steam turbine circulating water includes a cooling tower 1, a circulating water forepool 2 is provided on one side of the cooling tower 1, and the cooling tower 1 and the circulating water forepool 2 are connected by a pipe.

[0025] The circulating water forebay 2 is connected to a bypass water pump 3 via a pipeline; the outlet of the bypass water pump 3 is connected to a high-speed filter 4 and a water softener 5 via a pipeline; the high-speed filter 4 and the water softener 5 are connected in parallel, and the outlets of both the high-speed filter 4 and the water softener 5 are connected to the cooling tower 1; the circulating water forebay 2 is also connected to a circulating water pump 6 via a pipeline; the outlet of the circulating water pump 6 is connected to a steam generator via a pipeline.

[0026] Example 1

[0027] Operating mode to improve the filtration efficiency of high-speed filter: The outlet pipe of the circulating water after being treated by high-speed filter 4 is extended to the other side away from the circulating water pool front pool 2. The large circulation system is: cooling tower 1 → circulating water front pool 2 → side filter pump 3 → high-speed filter 4 → cooling tower 1A inlet.

[0028] Example 2

[0029] In this embodiment, there are two high-speed filters 4 and two water softeners 5, and the two high-speed filters 4 are connected in parallel; the two water softeners 5 are connected in parallel.

[0030] More specifically, there are multiple circulating water pumps 6, and the multiple circulating water pumps 6 are connected in parallel with each other.

[0031] Compared to Example 1

[0032] The small circulation system is as follows: Cooling tower 1 → Circulating water forebay 2 → Side filter pump 3 → High-speed filter 4 → Cooling tower 1B inlet → Circulating water forebay 2, which increases the amount of turbid water to be filtered and replaced in the circulating water and improves the filtration effect of the high-speed filter.

[0033] In this embodiment, an industrial water tank 7 is provided on one side of the cooling tower 1; the industrial water tank 7 is connected to the industrial water front pool 8 through a pipeline; the industrial water front pool 8 is also connected to an industrial water pump 9 through a pipeline.

[0034] More specifically, the steam generator is connected to the inlet of cooling tower 1 through a pipe, and the hot water generated by the steam generator is transported to cooling tower 1 for cooling.

[0035] Example 3

[0036] Low-energy water softener operation mode: According to the equipment operation design parameters of water softener 5, the pressure and temperature of circulating water return can meet the normal operation of water softener 5. Therefore, the original water inlet method of water softener 5 is adjusted to the side filter water pump 3 as circulating water return, and the pressure of circulating water return is used to drive water softener 5 to operate normally, reducing the power consumption of side filter water pump 3, while not reducing the inlet flow of high-speed filter 4.

[0037] The working principle of this utility model is: the operation mode of improving the filtration efficiency of the high-speed filter is: the outlet pipe of the circulating water after being treated by the high-speed filter 4 is extended to the other side away from the circulating water pool front pool 2. The large circulation system is: cooling tower 1 → circulating water front pool 2 → side filter water pump 3 → high-speed filter 4 → cooling tower 1A inlet.

[0038] The small circulation system is as follows: Cooling tower 1 → Circulating water forepool 2 → Side filter pump 3 → High-speed filter 4 → Cooling tower 1B inlet → Circulating water forepool 2, which increases the amount of turbid water to be filtered and replaced in the circulating water and improves the filtration effect of the high-speed filter.

[0039] Low-energy water softener operation mode: According to the equipment operation design parameters of water softener 5, the pressure and temperature of the circulating water return can meet the normal operation of water softener 5. Therefore, the original water inlet method of water softener 5 is adjusted to the side filter water pump 3 as the circulating water return. The pressure of the circulating water return is used to drive the water softener 5 to operate normally, reducing the power consumption of side filter water pump 3, while not reducing the inlet flow of high-speed filter 4. The water circulation process is: circulating water forebay 2 → water softener 5 → cooling tower 1C inlet.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high efficiency circulating device for reducing turbidity of steam turbine circulating water, characterized by: include A cooling tower (1) is provided with a circulating water forebay (2) on one side of the cooling tower (1), and the cooling tower (1) and the circulating water forebay (2) are connected by a pipe; The circulating water forebay (2) is connected to a side filter pump (3) via a pipe; the outlet of the side filter pump (3) is connected to a high-speed filter (4) and a water softener (5) via a pipe; the high-speed filter (4) and the water softener (5) are connected in parallel, and the outlets of the high-speed filter (4) and the water softener (5) are both connected to the cooling tower (1). The circulating water forebay (2) is also connected to a circulating water pump (6) via a pipe; the outlet of the circulating water pump (6) is connected to a steam generator via a pipe.

2. The high efficiency circulating device for reducing turbidity of circulating water of a steam turbine cycle according to claim 1, characterized by: The high-speed filter (4) and the water softener (5) are each provided in two, and the two high-speed filters (4) are connected in parallel; the two water softeners (5) are connected in parallel.

3. The high efficiency circulating device for reducing turbidity of circulating water of a steam turbine cycle according to claim 1, characterized by: The circulating water pump (6) is provided in multiple ways, and the multiple circulating water pumps (6) are connected in parallel to each other.

4. The high efficiency circulating device for reducing turbidity of circulating water of a steam turbine cycle according to claim 1, characterized by: The cooling tower (1) is provided with an industrial water tank (7) on one side; the industrial water tank (7) is connected to the industrial water front pool (8) by a pipeline; the industrial water front pool (8) is also connected to an industrial water pump (9) by a pipeline.

5. The high efficiency circulating device for reducing turbidity of circulating water of a steam turbine cycle according to claim 1, characterized by: The steam generator is connected to the inlet of the cooling tower (1) through a pipe, and the hot water generated by the steam generator is transported to the cooling tower (1) for cooling.

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