Automatic emptying anti-freezing structure of countercurrent closed tower

Abstract

The utility model relates to the technical field of countercurrent closed towers, discloses an automatic emptying and anti-freezing structure of a countercurrent closed tower, and solves the problems that residual water in a coil pipe is condensed into ice in winter, so that the coil pipe is frozen to crack and burst, in the operation process of a countercurrent closed tower body, a valve I and a valve III are opened, and a valve II and a valve III are opened. When the reverse flow closed type tower body stops running, the first valve and the third valve are closed firstly, then the second valve and the fourth valve are opened, rapid connection and communication between the reverse flow closed type tower body and the air inlet pipe are achieved through the connecting pipe, then the air compressor is started, and circulation of water flow of the reverse flow closed type tower body is achieved. Compressed air is finally conveyed into the coil pipe through the connecting pipe and the air inlet pipe, residual water in the coil pipe is pushed to move through pressure, the water finally flows out of the water drainage pipe, all the residual water in the coil pipe is drained, and the situation that the residual water in the coil pipe is condensed into ice, and consequently the coil pipe is damaged is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of counterflow closed tower, specifically to a counterflow closed tower automatic emptying anti-freezing structure. BACKGROUND

[0002] The counterflow closed tower is a kind of cooling equipment, which places tubular heat exchanger in tower, and ensures cooling effect through heat exchange of flowing air, spraying water and circulating water.

[0003] When the existing counterflow closed cooling tower is used, external water enters the cooling tower internal coil pipe from the water inlet pipe, when the cooling tower stops working, some water will stay in the coil pipe, and in winter, the water will freeze into ice, causing the phenomenon of coil pipe freeze cracking and pipe burst.

[0004] Therefore, a counterflow closed tower automatic emptying anti-freezing structure is needed. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of counterflow closed tower automatic emptying anti-freezing structures, work using this device, to solve the water remaining in coil pipe freeze into ice in winter, cause the problem of coil pipe freeze cracking and pipe burst.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of counterflow closed tower automatic emptying anti-freezing structure, including counterflow closed tower body, the outside of counterflow closed tower body is fixedly installed with water inlet pipe, the inside rotation of water inlet pipe is installed with valve one, one side of water inlet pipe is connected with drain pipe, the inside rotation of drain pipe is installed with valve two, the outside of counterflow closed tower body is fixedly installed with water outlet pipe, water outlet pipe and water inlet pipe are communicated with the inside of counterflow closed tower body, the inside rotation of water outlet pipe is installed with valve three, one side of water outlet pipe is fixedly installed with air inlet pipe, the inside rotation of air inlet pipe is installed with valve four, the outside of counterflow closed tower body is fixedly installed with air compressor, the output of air compressor is fixedly installed with connecting pipe, connecting pipe is communicated with air inlet pipe, during the operation of counterflow closed tower body, valve one and valve three are opened, valve two and valve four are closed, realize the circulation of the water flow of counterflow closed tower body, when counterflow closed tower body stops running, first, valve one and valve three are closed, then valve two and valve four are opened, then realize the quick connection and communication between connecting pipe and air inlet pipe, subsequently start air compressor and due to the closing of valve three, compressed air is finally delivered into coil pipe through connecting pipe and air inlet pipe, the residual water in coil pipe is moved by using pressure, due to the closing of valve one, water finally flows out from drain pipe, realize the complete discharge of residual water in coil pipe, effectively prevent the residual water in coil pipe from freezing into ice, and further cause damage to coil pipe.

[0007] Preferably, the reverse flow closed tower body is fixedly installed with a collecting box outside, and is located directly below the output end of the drain pipe.

[0008] Preferably, one end of the connecting pipe is fixedly installed with four sets of clamping blocks one, one end of the air inlet pipe is provided with four sets of clamping grooves one, the clamping blocks one are matched with the clamping grooves one, four sets of retreat grooves are penetrated and arranged in the air inlet pipe, the four sets of retreat grooves are one-to-one corresponding and communicated with the four sets of clamping grooves one, elastic members are fixedly installed in the retreat grooves, the four sets of clamping blocks one are inserted one-to-one corresponding with the four sets of clamping grooves one during installation, the elastic members are forced to compress and reset in the retreat grooves, then the clamping connection between them is completed, and quick installation is realized.

[0009] Preferably, the surface of the clamping block one is provided with a clamping groove two, the elastic member comprises a pull rod in sliding connection with the retreat groove, one end of the pull rod is fixedly installed with a clamping block two, the clamping block two is matched with the clamping groove two, the outer side of the pull rod is sleeved with a spring, one end of the spring is fixedly connected with the clamping block two, and the other end of the spring is fixedly connected with the surface of the retreat groove, in the process that the clamping block one is inserted into the clamping groove one, the clamping block two is pushed to compress the spring, so that the clamping block two enters the inside of the retreat groove, until the clamping groove two corresponds to the clamping block two, at this time, the spring starts to reset and pushes the clamping block two to engage and abut tightly with the clamping groove two, quick connection and fixation are realized.

[0010] Preferably, the other end of the pull rod penetrates through the air inlet pipe and is fixedly installed with a pull ring, when disassembling, the pull ring is pulled to drive the pull rod, the pull rod drives the clamping block two to compress the spring, so that the clamping block two exits the inside of the clamping groove two, the clamping block one can be pulled out of the inside of the clamping groove one, and quick disassembly is realized.

[0011] Preferably, the surface of one end of the air inlet pipe is provided with a ring groove, and a rubber sealing ring is fixedly installed at one end of the connecting pipe, and the rubber sealing ring engages with the ring groove, through the engagement of the rubber sealing ring and the ring groove, the sealing performance of the connecting portion is greatly improved, and stable conveying of compressed air is ensured.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model provides a kind of automatic emptying anti-freezing structure of counterflow closed tower, valve one and valve three open, valve two and valve four close in the operation process of counterflow closed tower body, the circulation of water flow of counterflow closed tower body is realized, when counterflow closed tower body stops running, valve one and valve three are closed first, then valve two and valve four are opened, then the quick connection and intercommunication between connecting pipe and air inlet pipe are realized, air compressor is started subsequently and compressed air is finally delivered into coil pipe by connecting pipe and air inlet pipe due to the closing of valve three, the water remaining in coil pipe is moved using pressure, water finally flows out from drain pipe due to the closing of valve one, the water remaining in coil pipe is completely discharged, effectively prevent the water remaining in coil pipe from freezing into ice, and further damage coil pipe. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the utility model;

[0015] Figure 2 It is the overall structure schematic diagram of the utility model;

[0016] Figure 3 It is the connecting pipe structure schematic diagram of the utility model;

[0017] Figure 4 It is the elastic member structure schematic diagram of the utility model;

[0018] Figure 5 It is the air inlet pipe structure schematic diagram of the utility model.

[0019] In the drawing: 1, counterflow closed tower body;2, water inlet pipe;21, valve one;3, drain pipe;31, valve two;4, collection box;5, water outlet pipe;51, valve three;6, air inlet pipe;61, valve four;62, ring groove;63, first clamping groove;64, retreat groove;65, elastic member;651, pull rod;652, second clamping block;653, spring;654, pull ring;7, air compressor;8, connecting pipe;81, rubber sealing ring;82, first clamping block;83, second clamping groove. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in combination with the drawings.

[0022] Combine Figures 1-2 , a countercurrent closed tower automatic emptying and antifreeze structure, comprising a countercurrent closed tower body 1, a water inlet pipe 2 is fixedly installed on the outside of the countercurrent closed tower body 1, a valve 1 21 is rotatably installed inside the water inlet pipe 2, one side of the water inlet pipe 2 is connected with a drain pipe 3, a valve 2 31 is rotatably installed inside the drain pipe 3, a water outlet pipe 5 is fixedly installed on the outside of the countercurrent closed tower body 1, the water outlet pipe 5 and the water inlet pipe 2 are both connected with the inside of the countercurrent closed tower body 1, a valve 3 51 is rotatably installed inside the water outlet pipe 5, an air inlet pipe 6 is fixedly installed on one side of the water outlet pipe 5, a valve 4 61 is rotatably installed inside the air inlet pipe 6, an air compressor 7 is fixedly installed on the outside of the countercurrent closed tower body 1, a connecting pipe 8 is fixedly installed on the output end of the air compressor 7, and the connecting pipe 8 is connected with the air inlet pipe 6, the countercurrent closed During the operation of the tower body 1, valve one 21 and valve three 51 are opened, and valve two 31 and valve four 61 are closed to realize the circulation of water flow in the countercurrent closed tower body 1. When the countercurrent closed tower body 1 stops running, valve one 21 and valve three 51 are first closed, and then valve two 31 and valve four 61 are opened, and then a quick connection and communication with the air inlet pipe 6 is achieved through the connecting pipe 8. Subsequently, the air compressor 7 is started and due to the closure of valve three 51, the compressed air is finally delivered into the coil through the connecting pipe 8 and the air inlet pipe 6, and the pressure is used to push the residual water in the coil to move. Due to the closure of valve one 21, the water finally flows out of the drain pipe 3, realizing the complete discharge of the residual water in the coil, effectively preventing the residual water in the coil from condensing into ice and causing damage to the coil.

[0023] Combine Figures 1-2 A collecting box 4 is fixedly installed on the outside of the countercurrent closed tower body 1 and is located directly below the output end of the drain pipe 3. Through the setting of the collecting box 4, the discharged residual water can be collected and recycled to avoid waste.

[0024] Combine Figure 3 、 Figure 5 One end of the connecting pipe 8 is fixedly installed with four groups of card blocks 82, and one end of the air intake pipe 6 is provided with four groups of card slots 63. The card blocks 82 match the card slots 63. Four groups of retreat grooves 64 are opened inside the air intake pipe 6. The four groups of retreat grooves 64 correspond to and are connected with the four groups of card slots 63 one by one. The interior of the retreat groove 64 is fixedly installed with elastic members 65. During installation, the four groups of card blocks 82 are matched with the four groups of card slots 63 one by one and inserted, forcing the elastic members 65 to compress and reset in the retreat grooves 64, and then the snap connection between them is completed, thereby achieving quick installation.

[0025] Combine Figures 3-4The surface of the card block 82 is provided with a second card slot 83, and the elastic member 65 includes a pull rod 651 that is slidably connected to the retreat groove 64. One end of the pull rod 651 is fixedly installed with a card block 2 652, and the card block 2 652 matches the card slot 2 83. A spring 653 is sleeved on the outer side of the pull rod 651, and one end of the spring 653 is fixedly connected to the card block 2 652, and the other end of the spring 653 is fixedly connected to the surface of the retreat groove 64. In the process of inserting the card block 1 82 into the card slot 1 63, the card block 2 652 will be pushed to compress the spring 653, so that the card block 2 652 enters the interior of the retreat groove 64 until the card slot 2 83 corresponds to the card block 2 652. At this time, the spring 653 begins to reset and push the card block 2 652 to fit and press against the card slot 2 83, thereby achieving quick connection and fixation.

[0026] Combine Figure 4 The other end of the pull rod 651 passes through the intake pipe 6 and is fixedly installed with a pull ring 654. When disassembling, the pull ring 654 is pulled to drive the pull rod 651, and the pull rod 651 drives the second clamping block 652 to compress the spring 653, so that the second clamping block 652 exits the interior of the second clamping slot 83, and the clamping block 82 can be pulled out of the interior of the clamping slot 63 to achieve quick disassembly.

[0027] Combine Figure 3 、 Figure 5 A ring groove 62 is provided on the surface of one end of the intake pipe 6, and a rubber sealing ring 81 is fixedly installed on one end of the connecting pipe 8. The rubber sealing ring 81 fits in the ring groove 62. The rubber sealing ring 81 fits in the ring groove 62, which greatly improves the sealing performance of the connection and ensures the stable delivery of compressed air.

[0028] The specific working process and principle of the utility model are as follows: during the operation of the countercurrent closed tower body 1, valve 1 21 and valve 3 51 are opened, valve 2 31 and valve 4 61 are closed, so as to realize the circulation of the water flow of the countercurrent closed tower body 1. When the countercurrent closed tower body 1 stops running, valve 1 21 and valve 3 51 are closed first, then valve 2 31 and valve 4 61 are opened, and the card block 1 82 is inserted into the card slot 1 63. During the insertion process, the card block 1 82 will push the card block 2 652 to compress the spring 653, so that the card block 2 652 enters the inner part of the retreat groove 64. The spring 653 starts to reset and pushes the second block 652 to fit and press against the second slot 83, thus achieving quick connection and fixation. The air compressor 7 is started and due to the closure of the third valve 51, the compressed air is finally delivered into the coil through the connecting pipe 8 and the air inlet pipe 6, and the pressure is used to move the residual water in the coil. Due to the closure of the first valve 21, the water eventually flows out of the drain pipe 3, thus achieving complete discharge of the residual water in the coil and effectively preventing the residual water in the coil from condensing into ice and causing damage to the coil.

[0029] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A counterflow closed tower automatic emptying anti-freezing structure, comprising a counterflow closed tower body (1), characterized in that: The outside of the countercurrent closed tower body (1) is fixedly installed with a water inlet pipe (2), a valve one (21) is rotatably installed in the water inlet pipe (2), a drain pipe (3) is communicatively arranged on one side of the water inlet pipe (2), a valve two (31) is rotatably installed in the drain pipe (3), a water outlet pipe (5) is fixedly installed on the outside of the countercurrent closed tower body (1), the water outlet pipe (5) and the water inlet pipe (2) are in communication with the inside of the countercurrent closed tower body (1), a valve three (51) is rotatably installed in the water outlet pipe (5), an air inlet pipe (6) is fixedly installed on one side of the water outlet pipe (5), a valve four (61) is rotatably installed in the air inlet pipe (6), an air compressor (7) is fixedly installed on the outside of the countercurrent closed tower body (1), a connecting pipe (8) is fixedly installed on the output end of the air compressor (7), and the connecting pipe (8) is in communication with the air inlet pipe (6).

2. The automatic defrosting structure of counter current closed tower according to claim 1, characterized in that: The outside of the countercurrent closed tower body (1) is fixedly installed with a collecting box (4), and the collecting box (4) is located directly below the output end of the drain pipe (3).

3. The automatic defrosting structure of counter current closed tower according to claim 1, characterized in that: One end of the connecting pipe (8) is fixedly installed with four clamping blocks one (82), one end of the air inlet pipe (6) is provided with four clamping grooves one (63), the clamping blocks one (82) are matched with the clamping grooves one (63), four retreat grooves (64) are penetratingly arranged in the air inlet pipe (6), the four retreat grooves (64) are in one-to-one correspondence and communication with the four clamping grooves one (63), and the elastic members (65) are fixedly installed in the retreat grooves (64).

4. The automatic defrosting structure of counter current closed tower according to claim 3, characterized in that: The surface of the clamping block one (82) is provided with a clamping groove two (83), the elastic member (65) includes a pull rod (651) slidably connected with the retreat groove (64), one end of the pull rod (651) is fixedly installed with a clamping block two (652), the clamping block two (652) is matched with the clamping groove two (83), the outside of the pull rod (651) is sleeved with a spring (653), one end of the spring (653) is fixedly connected with the clamping block two (652), and the other end of the spring (653) is fixedly connected with the surface of the retreat groove (64).

5. The automatic defrosting structure of counter current closed tower according to claim 4, characterized in that: The other end of the pull rod (651) penetrates through the air inlet pipe (6) and is fixedly installed with a pull ring (654).

6. The automatic defrosting structure of counter current closed tower according to claim 1, characterized in that: One end surface of the air inlet pipe (6) is provided with a ring groove (62), one end of the connecting pipe (8) is fixedly installed with a rubber sealing ring (81), and the rubber sealing ring (81) is matched with the ring groove (62).

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