Anti-freezing cooler for internal circulation closed cooling tower

Abstract

The utility model relates to an anti-freezing cooler for an internal circulation closed cooling tower, which comprises a tower body, an air outlet with a fan is arranged at the top of the tower body, air inlets are arranged at the lower parts of four side walls of the tower body, a spray pipe group, a filler and a cooling coil group are sequentially arranged in the tower body from top to bottom, a reservoir is arranged at the bottom in the tower body, and a water suction pump is arranged outside the tower body. A water distribution pipe A communicated with the spraying pipe set is arranged outside the tower body, the water suction pump can pump water from the water storage pool to the water distribution pipe A, an inlet of each cooling coil pipe is located above the water storage pool, an outlet of each cooling coil pipe is located below the water storage pool, the inlet and the outlet of each cooling coil pipe penetrate out of the tower body, and the outer end of each cooling coil pipe is connected with a three-way valve. The water distribution pipe B is connected with a three-way valve connected with an inlet of the cooling coil pipe, the water combination pipe is connected with a three-way valve connected with an outlet of the cooling coil pipe, and a hot air assembly capable of feeding hot air into the filler and the cooling coil pipe is arranged on the tower body. The utility model has the advantages of circulating water, good cooling effect and capability of avoiding low-temperature frost crack.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to an antifreeze cooler for an internal circulation closed cooling tower. Background Art

[0002] Closed cooling towers are commonly used in industrial production. The cooling coil is placed in the tower. The cooling effect is guaranteed by the heat exchange of circulating air and circulating cooling water. The closed cycle can prevent the cooling water from being contaminated, extend the service life of the cooling water, and reduce water consumption. Fillers are usually added to the cooling tower to help increase the contact area between the cooling water and the air and improve the heat exchange efficiency. When the ambient temperature drops, there is a certain risk of liquid solidification and damage to the cooling coil and filler, because it is easy for undischarged liquid to remain in the cooling coil and filler, affecting the normal use of the device. Utility Model Content

[0003] The utility model aims to provide an antifreeze cooler for an internal circulation closed cooling tower, which has the advantages of circulating water, good cooling effect and the ability to avoid low-temperature freezing and cracking.

[0004] The technical solution of the utility model is as follows:

[0005] An antifreeze cooler for an internal circulation closed cooling tower comprises a tower body, the tower body is in the shape of a rectangular parallelepiped, an air outlet with a fan is arranged at the top of the tower body, an air inlet with a grille is arranged at the lower part of the four side walls of the tower body, a spray pipe group, a filler and a cooling coil group are arranged in sequence from top to bottom in the tower body, the air inlet is lower than the cooling coil group, a water reservoir is arranged at the bottom of the tower body, a water pump is arranged outside the tower body, a water distribution pipe A connected with the inlet of each spray pipe in the spray pipe group is arranged outside the tower body, the inlet of the water pump is connected with the bottom of the water reservoir and the outlet is connected with the water distribution pipe A, the inlet of each cooling coil in the cooling coil group is at the top and the outlet is at the bottom, and each cooling coil in the cooling coil group is The inlet and outlet of the coil each pass through the tower body and are connected to a three-way valve at the outer end. A fixed frame is provided outside the tower body, and a water distribution pipe B and a water combination pipe are provided on the fixed frame. The water distribution pipe B is connected to the three-way valve connected to the inlet of the cooling coil, and the water combination pipe is connected to the three-way valve connected to the outlet of the cooling coil. A hot air component is provided on the tower body, and the hot air component includes an air outlet pipe A and an air outlet pipe B. The hot air component discharges hot air from the air outlet pipe A and the air outlet pipe B. The air outlet pipe A is horizontally moved by the driving component in such a way that its lower surface is in close contact with the upper surface of the filler. The lower surface of the air outlet pipe A is evenly provided with air outlet holes pointing to the filler, and the air outlet pipe B is connected to the three-way valve connected to the inlet of the cooling coil.

[0006] Preferably, the hot air assembly also includes an exhaust pump, a heater, an air pipe and a transfer box. The top of the tower body is provided with an exhaust pump and a heater, the outlet of the exhaust pump is connected to the inlet of the heater, the side wall of the tower body is provided with a transfer box, the outlet of the heater is connected to the transfer box through an air pipe, the inner side of the transfer box is connected to the air outlet pipe A through a hose inserted into the tower body, and the bottom of the transfer box is connected to the air outlet pipe B through a hard pipe.

[0007] Preferably, a torsion spring rotating rod is provided on the inner wall of the tower body at the insertion position of the hose, and the redundant part of the hose is wound around the torsion spring rotating rod.

[0008] Preferably, the driving assembly includes a threaded rod, a guide rod and a motor, the front side of the tower body is provided with a guide rod along the left and right directions, the rear side of the tower body is provided with a threaded rod along the left and right directions, the left and right ends of the threaded rod are respectively rotatably connected to the inner wall of the tower body, a motor is provided outside the tower body, the driving rod of the motor is coaxially connected to the end of the threaded rod, the air outlet pipe A is along the front and rear direction, the front end of the air outlet pipe A is provided with a groove along the left and right directions, the groove is slidably connected to the guide rod, the rear end of the air outlet pipe A is provided with a threaded hole along the left and right directions, and the threaded hole is threadedly connected to the threaded rod.

[0009] Preferably, the three-way valve connected to the outlet of the cooling coil is connected to the same drain pipe.

[0010] The utility model has the following beneficial technical effects:

[0011] 1. This technical solution has the advantages of circulating water and good cooling effect; the high-temperature fluid that needs to be cooled is dispersed from the water distribution pipe B into each cooling coil. In the process of the high-temperature fluid bending and moving along the cooling coil, the heat is continuously exchanged by the rising cold air and the falling cooling water, and the heat dissipation effect is remarkable. Finally, the fluid that has absorbed heat and cooled leaves the cooling coil and merges into the water pipe and flows to the predetermined position, thereby achieving the task of cooling the high-temperature fluid; the heat absorbed by the high-temperature fluid is mainly released to the outside through the exchange of air between the tower body and the outside world. The outside cold air is driven by the fan at the air outlet and is poured into the tower body from the air inlet and then rises along the tower body. When the cold air passes through the cooling coil group, the cold air absorbs the heat released by the high-temperature fluid in the cooling coil. When filling, the cold air absorbs the heat of the cooling water that penetrates into the filling, and finally the hot air that has undergone secondary heat absorption leaves the tower body from the air outlet with the absorbed heat and releases it to the outside, avoiding overheating of the tower body and affecting the heat dissipation effect; the cooling water that helps the cooling coil to cool down circulates inside the tower body, reducing water consumption. Driven by the water pump, the cooling water in the water reservoir is continuously lifted and dispersed through the water distribution pipe A before entering the various spray pipes located above. When the cooling water sprayed from the nozzle of the spray pipe passes through the filling, the cooling water is cooled by the rising cold air. When the cooled cooling water passes through the filling and falls on the cooling coil, the cooling water absorbs the heat released by the high-temperature fluid in the cooling coil. Finally, the cooling water after absorbing heat falls back into the water reservoir, completing a round of water circulation.

[0012] 2. Send hot air to the packing and each cooling coil through the hot air component to help drain the cooling water and fluid remaining therein, and prevent the cooling water and fluid solidified at low temperature from damaging the packing and cooling coil; the outlet pipe A can be translated close to the packing under the action of the driving component, and the lower surface of the outlet pipe A is evenly provided with air outlet holes. When the outlet pipe A slowly sweeps over the packing, the hot air discharged from the air outlet holes of the outlet pipe A is sent into the packing to squeeze out the cooling water remaining in the packing. The outlet pipe B can be connected to the inlet of each cooling coil through the three-way valve. When emptying the cooling coil, switch the three-way valves at the inlet and outlet of the cooling coil to cut off the connection between the cooling coil and the water distribution pipe B and the water combination pipe, and connect the cooling coil with the outlet pipe B. The hot air component sends hot air to each cooling coil through the outlet pipe B to push the fluid remaining in the cooling coil to flow out. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The technical solution of the utility model will be further described below in conjunction with the accompanying drawings.

[0014] Attached Figure 1 It is the front view of the utility model.

[0015] Attached Figure 2 It is a cross-sectional view from the main perspective of the utility model.

[0016] Attached Figure 3 for Figure 2A magnified view of part A.

[0017] Attached Figure 4 It is a top view of the utility model.

[0018] Attached Figure 5 It is a cross-sectional view from a top view of the present invention.

[0019] In the figure: 1-tower body, 2-air outlet, 3-air inlet, 4-spray pipe group, 5-filler, 6-cooling coil group, 7-water reservoir, 8-water pump, 9-water distribution pipe A, 10-three-way valve, 11-fixed frame, 12-water distribution pipe B, 13-water pipe, 14-hot air assembly, 15-air outlet pipe A, 16-air outlet pipe B, 17-drive assembly, 18-air outlet, 19-air pump, 20-heater, 21-air transmission pipe, 22-transfer box, 23-hose, 24-hard pipe, 25-torsion spring rotating rod, 26-threaded rod, 27-guide rod, 28-motor, 29-groove, 30-threaded hole, 31-drain pipe. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example:

[0022] like Figures 1 to 5 As shown, the present embodiment provides an antifreeze cooler for an internal circulation closed cooling tower, comprising a tower body 1, the tower body 1 is in the shape of a rectangular parallelepiped, an air outlet 2 with a fan is arranged at the top of the tower body 1, an air inlet 3 with a grille is arranged at the lower part of the four side walls of the tower body 1, a spray pipe group 4, a filler 5 and a cooling coil group 6 are arranged in sequence from top to bottom in the tower body 1, the air inlet 3 is lower than the cooling coil group 6, a water reservoir 7 is arranged at the bottom of the tower body 1, a water pump 8 is arranged outside the tower body 1, a water distribution pipe A9 connected with the inlet of each spray pipe in the spray pipe group 4 is arranged outside the tower body 1, the inlet of the water pump 8 is connected with the bottom of the water reservoir 7 and the outlet is connected with the water distribution pipe A9, the inlet of each cooling coil in the cooling coil group 6 is at the top and the outlet is at the bottom, and the inlet and outlet of each cooling coil in the cooling coil group 6 are respectively A tower body 1 is provided to pass through the tower body 1 and a three-way valve 10 is connected to its outer end. A fixing frame 11 is provided outside the tower body 1. A water distribution pipe B12 and a water combination pipe 13 are provided on the fixing frame 11. The water distribution pipe B12 is connected to the three-way valve 10 connected to the inlet of the cooling coil. The water combination pipe 13 is connected to the three-way valve 10 connected to the outlet of the cooling coil. A hot air component 14 is provided on the tower body 1. The hot air component 14 includes an air outlet pipe A15 and an air outlet pipe B16. The hot air component 14 discharges hot air outward from the air outlet pipe A15 and the air outlet pipe B16. The air outlet pipe A15 is horizontally moved by the driving component 17 in a manner that its lower surface is in close contact with the upper surface of the filler 5. The lower surface of the air outlet pipe A15 is evenly provided with air outlet holes 18 pointing to the filler 5. The air outlet pipe B16 is connected to the three-way valve 10 connected to the inlet of the cooling coil.

[0023] The technical solution has the advantages of circulating water and good cooling effect; the high-temperature fluid that needs to be cooled is dispersed from the water distribution pipe B12 into each cooling coil. In the process of the high-temperature fluid bending and moving along the cooling coil, the heat is continuously exchanged by the rising cold air and the falling cooling water, and the heat dissipation effect is remarkable. Finally, the fluid that has absorbed heat and cooled leaves the cooling coil and merges into the water combining pipe 13 and flows to a predetermined position, thereby achieving the task of cooling the high-temperature fluid; the heat absorbed by the high-temperature fluid is mainly released to the outside through the exchange of air between the tower body 1 and the outside. The outside cold air is driven by the fan at the air outlet 2 and is poured into the tower body 1 from the air inlet 3, and then rises along the tower body 1. When the cold air passes through the cooling coil group 6, the cold air absorbs the heat released by the high-temperature fluid in the cooling coil. When the cold air passes through the filler 5, the cold air absorbs the heat of the cooling water that penetrates into the filler 5, and finally the hot air that has undergone secondary heat absorption leaves the tower body 1 from the air outlet 2 with the absorbed heat and releases it to the outside, so as to avoid overheating of the tower body 1 and affect the heat dissipation effect; the cooling water that helps the cooling coil to cool down circulates inside the tower body 1, reducing the water consumption. Driven by the water pump 8, the cooling water in the water reservoir 7 is continuously lifted and enters the various spray pipes located above after being dispersed through the water distribution pipe A9. When the cooling water sprayed from the nozzle of the spray pipe passes through the filler 5, the cooling water is cooled by the rising cold air while absorbing heat. When the cooled cooling water passes through the filler 5 and falls on the cooling coil, the cooling water absorbs the heat released by the high-temperature fluid in the cooling coil, and finally the cooling water after absorbing heat falls back into the water reservoir 7, completing a round of water circulation. Hot air is sent to the packing 5 and each cooling coil through the hot air component 14 to help drain the cooling water and fluid remaining therein, and to prevent the cooling water and fluid solidified at low temperature from damaging the packing 5 and the cooling coil; the outlet pipe A15 can be translated close to the packing 5 under the action of the driving component 17, and the lower surface of the outlet pipe A15 is evenly provided with air outlet holes 18. When the outlet pipe A15 slowly sweeps over the packing 5, the hot air discharged from the air outlet holes 18 of the outlet pipe A15 is sent into the packing 5 to squeeze out the cooling water remaining in the packing 5. The outlet pipe B16 can be connected to the inlet of each cooling coil through the three-way valve 10. When emptying the cooling coil, the three-way valve 10 at the inlet and outlet of the cooling coil is switched to cut off the connection between the cooling coil and the water distribution pipe B12 and the water combination pipe 13, and the cooling coil is connected to the outlet pipe B16. The hot air component 14 sends hot air to each cooling coil through the outlet pipe B16 to push the fluid remaining in the cooling coil to flow out.

[0024] Furthermore, the hot air assembly 14 also includes an exhaust pump 19, a heater 20, an air pipe 21 and a transfer box 22. The exhaust pump 19 and the heater 20 are provided on the top of the tower body 1, the outlet of the exhaust pump 19 is connected to the inlet of the heater 20, the transfer box 22 is provided on the side wall of the tower body 1, the outlet of the heater 20 is connected to the transfer box 22 through the air pipe 21, the inner side of the transfer box 22 is connected to the air outlet pipe A15 through a hose 23 inserted into the tower body 1, and the bottom of the transfer box 22 is connected to the air outlet pipe B16 through a hard pipe 24.

[0025] The vacuum pump 19 delivers air to the heater 20, which heats the air. The hot air enters the transfer box 22 along the air pipe 21, and then enters the outlet pipe A15 along the hose 23, or enters the outlet pipe B16 along the hard pipe 24. The hose 23 has a certain length to match the translation of the outlet pipe A15.

[0026] Furthermore, a torsion spring rotating rod 25 is provided on the inner wall of the tower body 1 at the insertion position of the hose 23, and the redundant part of the hose 23 is wound on the torsion spring rotating rod 25. The redundant part of the hose 23 is rolled up by the torsion spring rotating rod 25 to prevent the part of the hose 23 hanging on the filler 5 from affecting the translation of the outlet pipe A15. When the outlet pipe A15 moves in a direction away from the torsion spring rotating rod 25, more hose 23 is pulled down from the torsion spring rotating rod 25. In this process, the torsion spring rotating rod 25 accumulates elastic potential energy. When the outlet pipe A15 moves in a direction close to the torsion spring rotating rod 25, the torsion spring rotating rod 25 releases the accumulated elastic potential energy to rotate back and forth, and rolls up the redundant hanging part of the hose 23.

[0027] Furthermore, the driving assembly 17 includes a threaded rod 26, a guide rod 27 and a motor 28. The front side of the tower body 1 is provided with a guide rod 27 along the left and right direction, and the rear side of the tower body 1 is provided with a threaded rod 26 along the left and right direction. The left and right ends of the threaded rod 26 are respectively rotatably connected to the inner wall of the tower body 1. A motor 28 is provided outside the tower body 1. The driving rod of the motor 28 is coaxially connected to the end of the threaded rod 26. The air outlet pipe A15 is along the front and rear direction, and the front end of the air outlet pipe A15 is provided with a groove 29 along the left and right direction. The groove 29 is slidably connected to the guide rod 27. The rear end of the air outlet pipe A15 is provided with a threaded hole 30 along the left and right direction, and the threaded hole 30 is threadedly connected to the threaded rod 26. The groove 29 and the guide rod 27 cooperate with each other to limit the moving direction of the air outlet pipe A15, and the threaded rod 26 and the threaded hole 30 cooperate with each other, so that when the motor 28 is started, the air outlet pipe A15 can be driven to translate through the threaded rod 26, so that the air outlet pipe A15 can sweep the upper surface of the filler 5, so that the hot air delivered by the air outlet pipe A15 has an influence range on the filler 5.

[0028] Furthermore, the three-way valve 10 connected to the outlet of the cooling coil is connected to the same drain pipe 31. The residual fluid discharged through the drain pipe 31 is merged to facilitate the collection and cleaning of the fluid.

[0029] The working principle and use process of this utility model:

[0030] Add a proper amount of cooling water to the water reservoir 7 in advance. When cooling the fluid, adjust the three-way valve 10 to connect each cooling coil with the water distribution pipe B12 and the water combination pipe 13, so that the high-temperature fluid can flow into the cooling coil. At the same time, start the submersible pump and the fan, start the water circulation in the tower body 1, and the air exchange between the tower body 1 and the outside world. The fluid flowing through the cooling coil completes the heat dissipation and cooling after the heat exchange between the cold air and the cooling water, and finally converges at the water combination pipe 13 and flows to the predetermined position. When cleaning afterwards, adjust the three-way valve 10 to disconnect each cooling coil from the water distribution pipe B12 and the water combination pipe 13, connect each cooling coil with the air outlet pipe B16 and the drain pipe 31, start the vacuum pump 19, the heater 20 and the motor 28, and let the hot air rush into the filler 5 and each cooling coil to discharge the residual cooling water and fluid.

[0031] The above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. An antifreeze cooler for an internal circulation closed cooling tower, characterized in that: The tower body comprises a tower body, which is in the shape of a rectangular parallelepiped, an air outlet with a fan is arranged on the top of the tower body, an air inlet with a grille is arranged at the lower part of the four side walls of the tower body, a spray pipe group, a filler and a cooling coil group are arranged in sequence from top to bottom in the tower body, the air inlet is lower than the cooling coil group, a water reservoir is arranged at the bottom of the tower body, a water pump is arranged outside the tower body, a water distribution pipe A connected with the inlet of each spray pipe in the spray pipe group is arranged outside the tower body, the inlet of the water pump is connected with the bottom of the water reservoir and the outlet is connected with the water distribution pipe A, the inlet of each cooling coil in the cooling coil group is at the top and the outlet is at the bottom, and the inlet and outlet of each cooling coil in the cooling coil group are respectively It passes through the tower body and is connected to a three-way valve at its outer end. A fixed frame is provided outside the tower body, and a water distribution pipe B and a water combination pipe are provided on the fixed frame. The water distribution pipe B is connected to the three-way valve connected to the inlet of the cooling coil, and the water combination pipe is connected to the three-way valve connected to the outlet of the cooling coil. A hot air component is provided on the tower body, and the hot air component includes an air outlet pipe A and an air outlet pipe B. The hot air component discharges hot air from the air outlet pipe A and the air outlet pipe B. The air outlet pipe A is horizontally moved by the driving component in a manner that its lower surface is tightly attached to the upper surface of the filler. The lower surface of the air outlet pipe A is evenly provided with air outlet holes pointing to the filler, and the air outlet pipe B is connected to the three-way valve connected to the inlet of the cooling coil.

2. The antifreeze cooler for an internal circulation closed cooling tower according to claim 1, characterized in that: The hot air assembly also includes an air extraction pump, a heater, an air supply pipe and a transfer box. The top of the tower body is provided with an air extraction pump and a heater. The outlet of the air extraction pump is connected to the inlet of the heater. The side wall of the tower body is provided with a transfer box. The outlet of the heater is connected to the transfer box through an air supply pipe. The inner side of the transfer box is connected to the air outlet pipe A through a hose inserted into the tower body. The bottom of the transfer box is connected to the air outlet pipe B through a hard pipe.

3. The antifreeze cooler for an internal circulation closed cooling tower according to claim 2, characterized in that: A torsion spring rotating rod is arranged on the inner wall of the tower body at the insertion position of the hose, and the redundant part of the hose is wound around the torsion spring rotating rod.

4. The antifreeze cooler for an internal circulation closed cooling tower according to claim 1, characterized in that: The driving assembly includes a threaded rod, a guide rod and a motor. The front side of the tower body is provided with a guide rod along the left and right directions, the rear side of the tower body is provided with a threaded rod along the left and right directions, the left and right ends of the threaded rod are respectively rotatably connected to the inner wall of the tower body, a motor is provided outside the tower body, and the driving rod of the motor is coaxially connected to the end of the threaded rod. The air outlet pipe A is along the front and rear direction, and the front end of the air outlet pipe A is provided with a groove along the left and right directions, and the groove is slidably connected to the guide rod, and the rear end of the air outlet pipe A is provided with a threaded hole along the left and right directions, and the threaded hole is threadedly connected to the threaded rod.

5. The antifreeze cooler for an internal circulation closed cooling tower according to claim 1, characterized in that: The three-way valve connected to the outlet of the cooling coil is connected to the same drain pipe.

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