Cooling tower deicing structure for relay pump station of heat supply system

Abstract

The utility model relates to the technical field of cooling towers, in particular to a heat supply system relay pump station cooling tower deicing structure which comprises a water inlet header pipe. The water inlet header pipe is connected with a second water inlet branch pipe, the second water inlet branch pipe is connected with a spraying pipe, the spraying pipe is annular, is arranged below the edge of a filler layer of the cooling tower and is fixedly connected with a supporting column of the cooling tower, spraying holes are obliquely and upwards formed in the periphery of the spraying tower, and hot water sprayed out of the spraying holes continuously scours the edge below the filler layer. The second water inlet branch pipe is led out of the water inlet main pipe, the structure is simple, the improvement cost is low, continuous washing and deicing of the cooling tower can be achieved, the deicing effect is good, and the positive effect is achieved for guaranteeing stable operation of a water pump of a relay pump room.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling towers, in particular to a deicing structure of a cooling tower of a relay pump station in a heating system. Background Art

[0002] During the heating period, when the outdoor temperature is low and the user's heat load increases, the relay pump station needs to be started to increase the heating supply, and the cooling tower plays a key role in cooling the mechanical seal of the relay pump station's circulating pump. The hot water drawn out of the heating pipe is cooled by the cooling tower, and then used to cool the mechanical seal of the circulating pump, thereby ensuring the stability of the circulating pump.

[0003] During the operation of the cooling tower, due to the uneven distribution of water above the packing layer and the cold weather outside, the water volume at the edge of the packing layer will be less than the water volume in the center, and the air volume at the edge will be greater than the air volume in the center. This makes it easy for ice to form below the edge of the packing layer. As time goes by, the accumulation of ice will cause serious ice formation at the edge below the packing layer, affecting the flow and amount of cooling water, and even causing the cooling water of the cooling tower to be cut off, which has a serious impact on the cooling of the pump station circulating pump seal.

[0004] Therefore, a deicing structure that can ensure the stable operation of the cooling tower and de-ice the cooling tower is a problem that needs to be solved. Utility Model Content

[0005] The utility model aims to solve the above-mentioned deficiencies of the prior art and provide a deicing structure for a cooling tower of a relay pump station in a heating system, so as to achieve the purpose of deicing the edge below the packing layer of the cooling tower.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a deicing structure for a cooling tower of a relay pump station in a heating system, based on the cooling tower, the deicing structure is installed and arranged on the cooling tower, the deicing structure includes a water inlet main pipe, the water inlet main pipe is respectively connected to a first water inlet branch pipe and a second water inlet branch pipe, the second water inlet branch pipe is connected to a spray pipe, the spray pipe is arranged below the edge of the packing layer, and a spray hole is obliquely opened on the spray pipe, and the hot water sprayed from the spray hole continuously flushes the lower edge of the packing layer.

[0007] Furthermore, the water inlet main pipe is arranged at the air inlet of the cooling tower, and a screen is provided at the air inlet. The first water inlet branch pipe passes through the screen and extends above the internal filling layer of the cooling tower; the second water inlet branch pipe passes through the screen and is connected to the spray pipe.

[0008] Furthermore, a control valve is installed on the second water inlet branch pipe, and the control valve is installed on the second water inlet branch pipe outside the screen.

[0009] Furthermore, the spray pipe is ring-shaped.

[0010] Furthermore, a support column is provided between the shell of the cooling tower and the water collecting tray, and the spray pipe is arranged and installed on the inner side of the support column.

[0011] Furthermore, the support column is connected to the connecting plate, the connecting plate is connected to the pipe clamp, and the pipe clamp clamps and fixes the spray pipe.

[0012] The beneficial effects of the utility model include simple structure, low transformation cost, ability to realize uninterrupted flushing and deicing of the cooling tower, good deicing effect, and playing a positive role in ensuring the stable operation of the water pump in the relay pump room. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the installation arrangement of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the spray pipe of the utility model (stereoscopic diagram);

[0016] Figure 4 This is a schematic diagram of the cooperation between the utility model and the packing layer;

[0017] Figure 5 It is a schematic diagram of the installation and fixing of the spray pipe of the utility model.

[0018] The names corresponding to the marks in the figure are:

[0019] 1. Shell; 11. Air outlet; 12. Air inlet; 2. Support column; 21. Connecting plate; 3. Water collecting tray; 31. Support foot; 32. Water outlet pipe; 4. Screen; 5. Water inlet main pipe; 51. First water inlet branch pipe; 52. Second water inlet branch pipe; 521. Control valve; 53. Spray pipe; 531. Spray hole; 54. Pipe clamp; 6. Packing layer. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] Embodiments of the present utility model:

[0022] like Figure 1-5As shown, the structure of this embodiment is arranged and installed by attaching to a cooling tower. The cooling tower includes a shell 1, which is connected to a water collecting pan 3 through a support column 2 at the bottom of the shell 1. A channel is formed between the shell 1 and the water collecting pan 3 through the support column 2, and the channel is an air inlet 12, and an air outlet 11 is arranged above the shell 1.

[0023] A water outlet pipe 32 is arranged at the bottom of the water collecting tray 3, and a support foot 31 is arranged below the water collecting tray 3, and a screen 4 is arranged at the air inlet 12; a water inlet main pipe 5 is arranged above the water collecting tray 3, and the water inlet main pipe 5 is connected with the first water inlet branch pipe 51 and the second water inlet branch pipe 52 respectively, the first water inlet branch pipe 51 passes through the screen 4 and extends to the top of the packing layer 6 inside the shell 1, the first water inlet branch pipe 51 is connected to the water distributor above the packing layer 6, the second water inlet branch pipe 52 passes through the screen 4 and is connected to the spray pipe 53, the spray pipe 53 is annular and arranged below the edge of the packing layer 6, a control valve 521 is arranged on the second water inlet branch pipe 52, and a spray hole 531 is opened obliquely upward on the spray pipe 53, and the water sprayed from the spray hole 531 matches the edge below the packing layer 6.

[0024] In this embodiment, the spray pipe 53 can be a PPR hot-melt pipe. The spray pipe 53 is connected to the connecting plate 21 through a pipe clamp 54. The connecting plate 21 is made of metal. The connecting plate 21 is welded and fixed to the support column 2.

[0025] The principle of this utility model is:

[0026] During the use of the utility model, the hot water flowing out of the water outlet end of the water pump of the heating pipeline is transported to the water inlet main pipe 5, and after being divided in the water inlet main pipe 5, a part of it is transported to the top of the packing layer 6 inside the cooling tower through the first water inlet branch pipe 51, and then distributed and sprayed on the packing layer 6 through the water distributor. At this time, the water in the packing layer 6 flows downward along the gaps between the packing layers 6 until it is discharged from the bottom of the packing layer 6 and collected on the water collecting tray 3; in the above process, the air inside the cooling tower is discharged upward through the fan at the air outlet 11 of the cooling tower, so that under the effect of the pressure difference Under the present invention, the cold air from the outside passes through the packing layer 6 from the air inlet 12 and flows to the air outlet 11. In this process, in the packing layer 6, the rising cold air and the descending hot water perform countercurrent heat exchange to achieve cooling of the hot and cold. The cooling water after cooling is collected in the water collecting tray 3 and then pumped to the mechanical seal of the water pump, thereby achieving cooling of the mechanical seal of the water pump and ensuring the stable operation of the water pump of the relay pump station (the cooling tower and structure involved in the present invention are existing mature technologies, which are not difficult to understand for those skilled in the art, and therefore are not shown in the drawings of the specification).

[0027] The other part of the incoming water flows through the water inlet main pipe 5 to the second water inlet branch pipe 52, and is sprayed out through the spray pipe 53 in the second water inlet branch pipe 52 to achieve uninterrupted flushing of the lower edge of the packing layer 6 (in actual engineering, the temperature of the hot water in the water inlet main pipe 5 is about 50°C). During the process, the water volume can be controlled by the control valve 521, and the direction of the spray hole 531 can be controlled to make the spray hole 531 spray obliquely upward to flush the lower edge of the packing layer 6, thereby avoiding ice below the edge of the packing layer 6, ensuring the stable operation of the cooling tower, and then ensuring the safe and stable operation of the water pump of the pump station.

Claims

1. A cooling tower deicing structure for a relay pump station in a heating system, based on a cooling tower, characterized in that: The deicing structure is installed and arranged on a cooling tower, and comprises a water inlet main pipe (5), the water inlet main pipe (5) is connected to a first water inlet branch pipe (51) and a second water inlet branch pipe (52), respectively, the second water inlet branch pipe (52) is connected to a spray pipe (53), the spray pipe (53) is arranged below the edge of the packing layer (6), a spray hole (531) is obliquely opened on the spray pipe (53), and hot water sprayed from the spray hole (531) continuously flushes the lower edge of the packing layer (6).

2. A deicing structure for a cooling tower in a relay pump station of a heating system according to claim 1, characterized in that: The water inlet main pipe (5) is arranged at the air inlet (12) of the cooling tower, and a screen (4) is provided at the air inlet (12). The first water inlet branch pipe (51) passes through the screen (4) and extends to the top of the packing layer (6) inside the cooling tower; the second water inlet branch pipe (52) passes through the screen (4) and is connected to the spray pipe (53).

3. A deicing structure for a cooling tower in a relay pump station of a heating system according to claim 2, characterized in that: The second water inlet branch pipe (52) is installed with a control valve (521), and the control valve (521) is installed on the second water inlet branch pipe (52) outside the screen (4).

4. A deicing structure for a cooling tower in a relay pump station of a heating system according to claim 1, characterized in that: The spray pipe (53) is ring-shaped.

5. A deicing structure for a cooling tower in a relay pump station of a heating system according to claim 4, characterized in that: A support column (2) is provided between the shell (1) and the water collecting tray (3) of the cooling tower, and the spray pipe (53) is arranged and installed on the inner side of the support column (2).

6. A deicing structure for a cooling tower in a relay pump station of a heating system according to claim 5, characterized in that: The support column (2) is connected to the connecting plate (21), the connecting plate (21) is connected to the pipe clamp (54), and the pipe clamp (54) clamps and fixes the spray pipe (53).

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