Sediment cleaning system for open type cooling tower

Abstract

The utility model discloses a sediment cleaning system for an open type cooling tower, which relates to the technical field of cooling towers, and comprises a cooling tower chassis, an inner cavity is arranged in the cooling tower chassis, the lower end of the inner cavity is connected with a blow-off pipe, the bottom wall of the inner cavity is provided with an inverted-cone-shaped fender above the blow-off pipe, and the bottom wall of the inner cavity is provided with a water inlet and a water outlet. Two flow guide plates are rotatably mounted on the side wall of the inner cavity, the two flow guide plates are symmetrically arranged on the two sides of the fender, each flow guide plate comprises a plurality of detachably connected combination blocks, and an electromagnetic blow-down valve is connected to the lower portion of the blow-down pipe; the flow guide plate and the mud guard are arranged at the bottom of the inner cavity, silt in cooling return water is guided to flow along the mud guard and the flow guide plate, so that the effect of collecting the silt is achieved, meanwhile, the silt which does not flow away is isolated, and the influence on a drainage pipeline is reduced; the electromagnetic blow-down valve arranged at the bottom is matched with the water level gauge, and after the water level in the chassis reaches the corresponding height, the controller controls the blow-down valve to be opened and closed to achieve the blow-down function.

Description

Technical Field

[0001] The utility model relates to the technical field related to cooling towers, in particular to a sediment cleaning system for an open cooling tower. Background Art

[0002] Currently, most cooling towers in refrigeration systems are open towers. During the heat exchange between air and water, particles such as silt and dust settle at the bottom of the tower tray, affecting the efficiency of the refrigeration system. Currently, cleaning the silt at the bottom of the tower tray is mainly done manually on a regular basis, resulting in increased operating costs and low efficiency.

[0003] Regular cleaning by personnel is often delayed, with high labor costs and low efficiency. If the cooling tower sediment is not cleaned promptly, the sediment at the bottom will gradually cover the bottom, and the overflowing sediment will continue to enter the drainage pipes. The sediment entering the pipes is not conducive to the heat dissipation of the cooling system and will accelerate the corrosion of the pipes. Utility Model Content

[0004] Purpose of the invention: The purpose of the utility model is to provide a sediment cleaning system for an open cooling tower, so as to solve the problem of sediment accumulation at the bottom of the cooling tower and sediment easily flowing into the outlet pipe during drainage.

[0005] Technical solution: A sediment cleaning system for an open cooling tower, comprising a cooling tower chassis, an inner cavity provided in the cooling tower chassis, a sewage pipe connected to the lower end of the inner cavity, an inverted conical mud guard provided on the bottom wall of the inner cavity above the sewage pipe, two guide plates rotatably mounted on the side walls of the inner cavity, the two guide plates symmetrically arranged on both sides of the mud guard, the guide plates comprising a plurality of detachably connected combination blocks, and an electromagnetic sewage valve connected to the sewage pipe below.

[0006] Furthermore, a clamping block is provided on one side wall of the combination block, and a clamping slot is provided on the other side wall of the combination block. When the combination blocks are connected in pairs, the clamping block is clamped into the clamping slot.

[0007] Furthermore, the combination block is L-shaped, and the clamping blocks and the clamping slots are provided in both the horizontal and vertical directions of the combination block.

[0008] Among them, connecting the combination blocks in the form of blocks and slots can facilitate installation and disassembly and improve work efficiency. At the same time, the L-shaped setting can compress the guide plate by covering the mud and sand at the bottom, further improving the stability of the guide plate placement.

[0009] Furthermore, the fender includes a plurality of arc plates, and the plurality of arc plates are detachably connected.

[0010] Furthermore, a cooling tower filler is connected to the side wall of the cooling tower chassis, and the bottom of the cooling tower filler is located between the two guide plates.

[0011] Furthermore, the bottom wall of the inner cavity is connected to a liquid level gauge and a water outlet pipe, the liquid level gauge and the water outlet pipe are both located outside the guide plate and the fender, and the liquid level gauge and the electromagnetic drain valve are both communicatively connected to a control module.

[0012] Beneficial effects: By arranging guide plates and mud guards at the bottom of the inner cavity, the sediment in the cooling return water is guided to flow along the mud guards and guide plates, thereby achieving the effect of collecting sediment, and at the same time isolating the sediment that has not flowed away, reducing the impact on the drainage pipe; the guide plates rotate, and the angle between the guide plates on both sides can be adjusted during work, so as to control the amount of sediment passing through the two guide plates, thereby achieving the effect of controlling the flow rate; the guide plates themselves are combined, and the mud guards are fixed in position. After rotating the guide plates, the length of the guide plates can be controlled by replacing the combination blocks to achieve the fit between the guide plates and the mud guards, ensuring that the sediment will not leak during the flow process; the electromagnetic drain valve arranged at the bottom cooperates with the water level gauge to control the water level in the chassis to reach the corresponding height and for a drainage cycle. The controller controls the solenoid valve to open and close to achieve the drainage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a side view of the overall structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the overall structure of the utility model when viewed from above;

[0016] Figure 4 This is a schematic diagram of the disassembled structure of the guide plate of the present invention.

[0017] Figure numerals: 11, cooling tower chassis; 12, cooling tower filler; 13, water supply pipe; 14, water supply valve; 15, outlet pipe; 21, cooling tower filler; 22, anti-overflow plate; 23, liquid level gauge; 31, mud guard; 32, arc plate; 33, guide plate; 331, slot; 332, block; 333, assembly block; 34, drain pipe; 35, drain valve. DETAILED DESCRIPTION

[0018] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] like Figure 1 and Figure 3As shown, a sediment cleaning system for an open cooling tower includes a cooling tower chassis 11. An inner cavity 21 is provided in the cooling tower chassis 11. The lower end of the inner cavity 21 is connected to a drain pipe 34. The sediment is discharged from the drain pipe 34. The drain pipe 34 is located at the center of the inner cavity 21. At the same time, the drain pipe 34 extends downward. A drain valve 35 is provided at the lower end of the drain pipe 34. The discharge of the drain pipe 34 is achieved by controlling the switch of the drain valve 35. The drain valve 35 includes an electric valve and a manual valve. The manual valve is installed above the electric valve. The manual valve is in a normally open state to ensure normal operation.

[0021] The inner cavity 21 is connected to a water outlet pipe 15 on one side of the sewage pipe 34. At the same time, a liquid level gauge 23 and a water supply pipe 13 are provided near the water outlet pipe 15 of the inner cavity 21. When the cooling water volume is insufficient, the liquid level gauge 23 detects that the water level is lowered, and the control module controls the electric valve on the water supply pipe 13 to replenish cooling water, thereby ensuring the normal operation of the cooling tower. The water supply pipe 13 runs through the cooling tower chassis 11, and the water supply pipe 13 is connected to an electric valve on the outside of the cooling tower chassis 11, and the electric valve is used to control whether water supply is performed.

[0022] Among them, the electric valve of the water supply pipe 13, the electric valve in the sewage valve 35 and the liquid level meter 23 are all communicatively connected to the same controller. The controller controls the operation of the electric valve through the water level measured by the liquid level meter 23. The liquid level meter 23 will record the water level changes on the cooling tower chassis 11. When the water level reaches an appropriate height and lasts for a sewage discharge cycle, the control module controls the electric valve on the sewage discharge pipe to open and perform sewage discharge.

[0023] At the same time, the cooling tower chassis 11 is connected to the side wall connected to the cooling tower filler 12. The cooling return water in the cooling tower filler 12 passes through the cooling tower filler 12 and then falls into the inner cavity 21. After the mud and sand are separated, it is discharged from the outlet pipe 15, thereby realizing the cleaning and return of the cooling water.

[0024] Among them, the silt in the cooling return water needs to be discharged from the drain pipe 34, and the cooling water and silt need to be separated in the inner cavity 21. The inner cavity 21 is installed with a guide plate 33. There are two guide plates 33, and one end of the guide plate 33 is connected to the inner cavity 21, and the other end is a free end and close to the drain pipe 34. The drain pipe 34 is connected to a mud guard 31 in the inner cavity 21. The two guide plates 33 are combined to form a V shape. The mud guard 31 is located at the bottom of the V shape. The guide plate 33 will guide the silt deposited at the bottom of the inner cavity 21 to the mud guard 31, and then it will be discharged from the drain pipe 34.

[0025] Furthermore, the guide plate 33 is L-shaped and is divided into two parts: a horizontal part and a vertical part. The horizontal part is located between the two guide plates 33. The deposited mud and sand can accumulate on the horizontal part of the guide plate 33, which can help fix the guide plate 33 and prevent the guide plate 33 from shaking. At the same time, the mud and sand continue to flow along the vertical part of the guide plate 33 to the mud guard 31, achieving a sewage discharge effect.

[0026] like Figure 2 As shown, the fender 31 in this application is in an inverted cone shape, and two guide plates 33 respectively abut against the two sides of the fender 31 to form a funnel to guide the mud and sand into the sewage pipe 34.

[0027] The mudguard 31 is composed of a plurality of arc plates 32. The number of the arc plates 32 is adjusted according to the sediment situation. Different numbers of arc plates 32 can control the opening size of the mudguard 31, thereby controlling the sediment discharge efficiency.

[0028] like Figure 4 As shown, when the fender 31 changes, the guide plate 33 needs to be controlled to change to fit the opening size of the fender 31. Therefore, the guide plate 33 is also in a detachable form. The guide plate 33 is composed of a number of combination blocks 333. The combination blocks 333 are also L-shaped. The two combination blocks 333 are snap-connected to facilitate disassembly and installation.

[0029] Except for the connecting parts at both ends of the combination block 333, the two side walls of any combination block 333 are respectively provided with a slot 331 and a block 332. The slot 331 and the block 332 are plug-in, and the horizontal part and the vertical part of the combination block 333 are both provided with a slot 331 and a block 332, thereby ensuring the stability of the connection of the combination block 333.

[0030] The fender 31 and the guide plate 33 are used to block mud and sand. The cooling water needs to be discharged normally. Therefore, a flow cavity for cooling water discharge is reserved above the fender 31 and the guide plate 33 to facilitate the flow of cooling water after the mud and sand are separated.

[0031] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A sediment cleaning system for an open cooling tower, comprising a cooling tower chassis (11), wherein an inner cavity (21) is provided in the cooling tower chassis (11), and a sewage pipe (34) is connected to the lower end of the inner cavity (21), characterized in that: The bottom wall of the inner cavity (21) is provided with an inverted conical fender (31) above the sewage pipe (34). Two guide plates (33) are installed in the inner cavity (21). The two guide plates (33) are symmetrically arranged on both sides of the fender (31). The guide plates (33) include a plurality of detachably connected assembly blocks (333). An electromagnetic sewage valve (35) is connected below the sewage pipe (34).

2. The sediment cleaning system for an open cooling tower according to claim 1, characterized in that: A clamping block (332) is provided on one side wall of the combination block (333), and a clamping slot (331) is provided on the other side wall of the combination block (333). When two combination blocks (333) are connected, the clamping block (332) is clamped into the clamping slot (331).

3. The sediment cleaning system for an open cooling tower according to claim 2, characterized in that: The combination block (333) is L-shaped, and the clamping block (332) and the clamping slot (331) are provided in both the horizontal and vertical directions of the combination block (333).

4. The sediment cleaning system for an open cooling tower according to claim 1, characterized in that: The fender (31) comprises a plurality of arc plates (32), and the plurality of arc plates (32) are detachably connected.

5. The sediment cleaning system for an open cooling tower according to claim 1, characterized in that: A cooling tower filler (12) is installed on the side wall of the cooling tower chassis (11), the lower end of the cooling tower filler (12) is located above the inner cavity (21), and the cooling tower filler (12) is located between the two guide plates (33).

6. The sediment cleaning system for an open cooling tower according to claim 1, characterized in that: The bottom wall of the inner cavity (21) is connected to a liquid level meter (23) and a water outlet pipe (15); the liquid level meter (23) and the water outlet pipe (15) are both located outside the guide plate (33) and the fender (31); and the liquid level meter (23) and the electromagnetic drain valve (35) are both communicatively connected to a control module.

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