Alternating filter screen device for cooling tower circulating water pool

Abstract

The utility model provides an alternative filter screen device for a cooling tower circulating water pool, which comprises a support, a first sliding chute and a second sliding chute are arranged on the inner wall of the support, a plurality of rollers are regularly arranged on the inner wall of the vertical part of the first sliding chute, a first filter screen is clamped in the first sliding chute, and a second filter screen is clamped in the second sliding chute. And a second filter screen is clamped in the second sliding groove, a first handle is arranged at the top of the first filter screen, a second handle is arranged at the top of the second filter screen, and two transmission assemblies are further included. The device can be used at the communication port of the front pool and the rear pool of the mechanical cooling tower, impurities entering the pools of the mechanical cooling tower due to weather, maintenance and the like are effectively filtered by adopting the alternative filter screens, the blocking condition of the filter at the inlet of circulating water pipeline equipment is solved, the cleaning difficulty and the safety risk of workers are also reduced, and the working efficiency is improved. And the universal rubber wheels are adopted, so that a worker can extract the filter screen more conveniently, quickly and effortlessly, the practicability is high, and the application range is wide.

Description

Technical Field

[0001] This utility model belongs to the field of chemical smelting technology and relates to an alternating filter device for a cooling tower circulating water pool. Background Technology

[0002] During the long-term operation of a cooling tower, it is inevitable that debris will enter the cooling tower circulation pool due to weather conditions such as wind. In particular, plastic bags and woven bags will adhere to the filter screens at the connection between the front and rear water pools. This will not only cause blockage of the filter screens at the connection between the front and rear water pools, but in severe cases, it will cause the water level in the front pool to drop, and may even cause the circulating water pump to stop flowing. When the steam entering the condenser cannot be cooled and condensed, too much steam will cause the condenser vacuum to drop, the condenser explosion-proof door to explode, and the unit to shut down.

[0003] The traditional method for cleaning the filter screen at the connection port of the cooling tower circulating pool is to extract and clean the filter screen at the connection port between the front and rear water pools. However, the drawback of this method is that, since there is no filter screen at the connection port, debris will enter the front pool during the cleaning process. This debris can easily cause blockage of the Y-type filter at the equipment inlet through the circulating pump into the circulating water pipe, resulting in increased temperature of the generator stator core and windings, increased temperature of the unit's lubricating oil, and increased temperature of the turbine's bearings, which seriously affects the safe, economical and stable operation of the turbine generator set. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the prior art by providing an alternating filter device for the circulating water pool of a cooling tower. This solves the problem that existing methods for cleaning the filter at the connection port of the cooling tower circulating pool are ineffective because the lack of a filter at the connection port allows debris to enter the forepool and clog the filter, leading to increased temperature of the turbine bearings and seriously affecting the stable operation of the turbine generator set.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] An alternating filter device for a cooling tower circulating water pool includes a support frame. The support frame is U-shaped with its opening facing upward. The inner wall of the support frame is provided with a first sliding groove and a second sliding groove, which are arranged in parallel. The first sliding groove is also U-shaped and includes two vertical parts and a horizontal part. The inner wall of the vertical part of the first sliding groove is provided with a number of rollers arranged in a regular pattern. The second sliding groove is the same shape and size as the first sliding groove, and the inner wall of its vertical part is also provided with a number of rollers arranged in a regular pattern.

[0007] A first filter screen is installed in the first chute, and a second filter screen is installed in the second chute. A first handle is provided on the top of the first filter screen, and a second handle is provided on the top of the second filter screen.

[0008] It also includes two sets of transmission components. Each transmission component includes a transmission wheel located at the outlet of the cooling tower circulating water pool. The side of the transmission wheel is provided with a rotating handle that is connected to it for transmission. The transmission wheel is provided with a rope. One end of the rope is fixedly connected to the transmission wheel, and the other end is provided with a hook. The hooks in the two sets of transmission components are respectively connected to the first handle and the second handle.

[0009] Furthermore, the roller includes a horizontally arranged support rod and a wheel body, the wheel body being sleeved on the end of the support rod, one end of the support rod being fixedly connected to the wall of the first sliding groove, and the other end being rotatably connected to the wheel body.

[0010] Specifically, the outer wall of the wheel is covered with a rubber layer.

[0011] Furthermore, both the first and second filters are slidably connected to the rollers.

[0012] Furthermore, both the first and second filters are vertically arranged.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model can be used at the connection between the front and rear water tanks of a mechanical cooling tower. By setting an alternating filter screen, it can effectively filter out debris that enters the water tank of the mechanical cooling tower due to weather, maintenance, etc., and solve the problem of clogging of the inlet filter of the circulating water pipeline equipment. At the same time, this utility model also reduces the cleaning difficulty and safety risks for workers. In particular, by setting universal rubber wheels, it makes it more convenient, faster and easier for workers to pick up or put down the filter screen. It is highly practical and has a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the bracket of this utility model.

[0017] In the diagram, 1-bracket, 2-first slide groove, 3-second slide groove, 4-roller, 4a-support rod, 4b-wheel body, 5-first filter screen, 6-second filter screen, 7-first handle, 8-second handle, 9-drive wheel, 10-rotating shaft handle, 11-rope body, 12-hook. Detailed Implementation

[0018] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0019] like Figure 1As shown, an alternating filter device for a cooling tower circulating water pool includes a support 1, which is U-shaped with its opening facing upward. The inner wall of the support 1 is provided with a first groove 2 and a second groove 3, which are arranged in parallel.

[0020] like Figure 2 As shown, the first chute 2 is also U-shaped, including two vertical parts and a horizontal part. The inner wall of the vertical part of the first chute 2 is provided with several rollers 4 arranged in a regular pattern. The second chute 3 is the same shape and size as the first chute 2, and the inner wall of its vertical part is also provided with several rollers 4 arranged in a regular pattern. When the filter screen is being cleaned, the rollers 4 make it easier for operators to observe, extract, and install the filter screen, reduce the friction between the chute and the filter screen, and facilitate the lifting and placement of the filter screen.

[0021] The roller 4 includes a horizontally arranged support rod 4a and a wheel body 4b. The wheel body 4b is sleeved on the end of the support rod 4a. One end of the support rod 4a is fixedly connected to the wall of the first sliding groove 2, and the other end is rotatably connected to the wheel body 4b.

[0022] The first slide groove 2 houses the first filter screen 5, and the second slide groove 3 houses the second filter screen 6. The first filter screen 5 and the second filter screen 6 are identical in shape and size, and both are vertically arranged. The first filter screen 5 has a first handle 7 at its top, and the second filter screen 6 has a second handle 8 (not shown in the figure) at its top. Specifically, the first filter screen 5 and the second filter screen 6 are slidably connected to the roller 4.

[0023] This utility model also includes two sets of transmission components, which are used for the raising and lowering of the first filter screen 5 and the second filter screen 6, respectively. Specifically, the transmission component includes a transmission wheel 9 set at the outlet of the cooling tower circulating water pool. Specifically, the transmission wheel 9 is a universal rubber wheel and is mounted above the outlet of the cooling tower circulating water pool through common connecting seats such as brackets and bases. The side of the transmission wheel 9 is provided with a rotating shaft handle 10 that is connected to it for transmission. Turning the rotating shaft handle 10 can make the transmission wheel 9 rotate. The transmission wheel 9 is provided with a rope body 11. One end of the rope body 11 is fixedly connected to the transmission wheel 9, and the other end is provided with a hook 12. The hooks 12 in the two sets of transmission components are respectively connected to the first handle 7 and the second handle 8.

[0024] The usage process of this utility model is as follows:

[0025] When the filter screen becomes clogged, the transmission assembly sequentially pulls the first filter screen 5 and the second filter screen 6, which are locked in the first slide 2 and the second slide 3. Specifically, when the first filter screen 5 needs to be cleaned, firstly, the rotating shaft handle 10 is turned to rotate the transmission wheel 9, which in turn winds up the rope 11. At this time, the first filter screen 5 is pulled upward by the hook 12 until the staff standing above the outlet of the cooling tower circulating water pool can take the first filter screen 5 and complete the cleaning. Then, the cleaned first filter screen 5 is lowered into the first slide 2 through the transmission assembly. Next, the second filter screen 6 is cleaned in the same way.

[0026] This invention enables the first filter screen 5 and the second filter screen 6 to be cleaned sequentially. Therefore, during the cleaning process, one filter screen will always play a filtering role, preventing debris from entering the circulation pool and then entering the pipeline through the circulation pump, causing blockage of the condenser copper tubes, cooling tower nozzles, air cooler and oil cooler inlet filters. This ensures the high vacuum of the condenser, as well as the stability of the generator set core, winding temperature and lubricating oil temperature, enabling the turbine generator set to operate stably.

Claims

1. An alternating screen device for cooling tower recirculating ponds, characterized in that, The utility model provides a cooling tower circulating water filtering device, including support (1), support (1) is U type, and its opening is upward, and the inner wall of support (1) is equipped with first sliding groove (2) and second sliding groove (3), and both are parallelly arranged, and the first sliding groove (2) is also U type, and it includes two vertical parts and horizontal part, and the inner wall of vertical part of first sliding groove (2) is equipped with several rollers (4) in regular arrangement, and the second sliding groove (3) is same with the shape and size of first sliding groove (2), and the inner wall of vertical part is also equipped with several rollers (4) in regular arrangement, First filter screen (5) is clamped in the first sliding groove (2), and second filter screen (6) is clamped in the second sliding groove (3), and the top of first filter screen (5) is equipped with first handle (7), and the top of second filter screen (6) is equipped with second handle (8), It further includes two groups of transmission assemblies, the transmission assembly includes transmission wheel (9) arranged at the water outlet of cooling tower circulating pool, the side of transmission wheel (9) is equipped with rotating shaft handle (10) in transmission connection with it, transmission wheel (9) is equipped with rope body (11), one end of rope body (11) is fixedly connected with transmission wheel (9), and the other end is equipped with hook (12), and the hook (12) in two groups of transmission assemblies is connected with first handle (7) and second handle (8) respectively.

2. An alternating screen device for cooling tower sump according to claim 1, wherein, The roller (4) includes a horizontally arranged support rod (4a) and a wheel body (4b), the wheel body (4b) is sleeved on the end of the support rod (4a), one end of the support rod (4a) is fixedly connected with the groove wall of the first sliding groove (2), and the other end is rotatably connected with the wheel body (4b).

3. An alternating screen device for cooling tower sump according to claim 1, wherein, The first filter screen (5) and the second filter screen (6) are both in sliding connection with the roller (4).

4. An alternating screen device for cooling tower sump according to claim 1, wherein, The first filter screen (5) and the second filter screen (6) are both vertically arranged.

5. An alternating screen device for cooling tower sump according to claim 2, wherein, The outer wall of the wheel body (4b) is wrapped with a rubber layer.

6. An alternating screen device for cooling tower sump according to claim 2, wherein, The wheel body (4b) is a universal rubber wheel.

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