CN214333440U - Anti-freezing closed cooling tower - Google Patents

Abstract

The application relates to an anti-freezing closed cooling tower which comprises a cooling tower body, wherein a cooling pipe group is connected in the cooling tower body and comprises a first heat dissipation coiled pipe, a second heat dissipation coiled pipe and a transition pipe, each straight pipe section of the first heat dissipation coiled pipe from top to bottom is downwards inclined, each straight pipe section of the second heat dissipation coiled pipe from top to bottom is downwards inclined, and the transition pipe is connected between the lower end of the first heat dissipation coiled pipe and the lower end of the second heat dissipation coiled pipe; the transition pipe includes bottom branch pipe and slope branch pipe, and the slope branch pipe is connected with one respectively at the both ends of bottom branch pipe, is connected with the drain pipe on the bottom branch pipe, is connected with drainage subassembly on the drain pipe, and the one end that the transition pipe was kept away from to first heat dissipation coiled pipe is connected with the inlet tube, and the one end that the transition pipe was kept away from to the second heat dissipation coiled pipe is connected with the outlet pipe, is connected with the ooff valve on inlet tube and the outlet pipe respectively. The present application has the effect of reducing the likelihood of frost cracking of the pipes in the cooling tower.

Description

Anti-freezing closed cooling tower

Technical Field

The application relates to the technical field of freezing prevention of cooling towers, in particular to a freezing-prevention closed cooling tower.

Background

At present, cooling towers which are used in the fields of metallurgy, casting, refrigeration and the like and adopt a fluid heat exchange mode are mainly divided into open cooling towers and closed cooling towers, wherein the closed cooling towers adopt soft water (distilled water) as circulating cooling water, do not contact with air, do not need a special water tank, have low operation and maintenance cost and long service life, and are widely applied.

Chinese patent with publication number CN202361843U discloses a closed cooling tower, which comprises a circulating water tank connected with a cooling device to be cooled, and further comprises a closed cooling tower body, wherein a coil type radiator is arranged inside the closed cooling tower body, a water inlet of the coil type radiator is connected with the circulating water tank through a circulating pump, a water return port of the coil type radiator is connected with the cooling device to be cooled, a ventilation window is arranged on the lower part of the closed cooling tower body, and at least one fan is arranged on the top end of the closed cooling tower body.

In view of the above-described related art, the inventors have considered that when the air temperature drops below zero, if the closed cooling tower stops operating for a certain period of time, there is a possibility that water in the coil radiator freezes, resulting in frost cracking of the pipes.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility of frost crack of the pipeline in the cooling tower, the application provides an anti-freezing closed cooling tower.

The application provides a pair of prevent frostbite closed cooling tower adopts following technical scheme:

an anti-freezing closed cooling tower comprises a cooling tower body, wherein a cooling pipe group is connected in the cooling tower body and comprises a first heat dissipation coiled pipe, a second heat dissipation coiled pipe and a transition pipe, the first heat dissipation coiled pipe and the second heat dissipation coiled pipe are vertically arranged, each straight pipe section of the first heat dissipation coiled pipe from top to bottom is downwards inclined, each straight pipe section of the second heat dissipation coiled pipe from top to bottom is downwards inclined, and the transition pipe is connected between the lower end of the first heat dissipation coiled pipe and the lower end of the second heat dissipation coiled pipe; the transition pipe comprises a horizontally arranged bottom branch pipe and an inclined branch pipe inclined towards the bottom branch pipe, the two ends of the bottom branch pipe of the inclined branch pipe are respectively connected with one inclined branch pipe, the bottom branch pipe is connected with a vertically arranged drain pipe, the upper end of the drain pipe is communicated with the bottom branch pipe, the drain pipe is connected with a drain assembly used for controlling whether the drain pipe is conducted or not, one end, away from the transition pipe, of the first heat dissipation coiled pipe is connected with a water inlet pipe, one end, away from the transition pipe, of the second heat dissipation coiled pipe is connected with a water outlet pipe, and the water inlet pipe and the water outlet pipe are respectively connected with a switch valve; be connected with on the cooling tower body and be used for carrying out the air exhauster of heat exchange with external environment this internal cooling tower, the transom has been seted up on the cooling tower body, be connected with top open-ended spray tank on the diapire of cooling tower body inside, the lower extreme of drain pipe is towards spray tank, this internal in-connection of cooling tower has the suction pump, the end of intaking of suction pump communicates in spray tank, it is connected with the spray header to go out the water outlet end, be connected with a plurality of shower nozzles that set up towards the cooling tube group on the spray header, this internal in-connection of cooling tower has the water receiver, the water receiver is located the cooling tube group top.

By adopting the technical scheme, when the cooling tower is in a normal working state, the drainage assembly is in a closed state, so that the drainage pipe is not conducted, and meanwhile, the switch valve is in an open state, at the moment, the water flow to be cooled sequentially flows through the water inlet pipe, the first heat dissipation coiled pipe, the transition pipe and the second heat dissipation coiled pipe, so that the temperature is reduced;

when the cooling tower stop work, the staff closes the ooff valve to control drainage subassembly makes the drain pipe switch on, at this moment, because the pipe shaft of first heat dissipation coiled pipe and second heat dissipation coiled pipe is the slope setting, inside remaining water flows downwards under the effect of gravity, and concentrates in the transition pipe, gets into in the transition pipe after, rivers get into bottom branch pipe via slope branch pipe, and discharge through the drain pipe. Through setting up first heat dissipation coiled pipe, second heat dissipation coiled pipe and the transition pipe that has inclination, compare in the pipeline that does not have the inclination, the residual water in the cooling tube bank discharges more thoroughly, and then has reduced the probability that temperature was the interior pipeline frost crack of cooling tower when zero.

Optionally, the drain pipe is the rectangular pipe, and the drainage subassembly is including the shielding plate that is used for sheltering from the pipeline of drain pipe and connecting in the shrink cylinder of cooling tower body inside wall, and the telescopic link of shrink cylinder is level setting and fixed connection shielding plate, sets up the opening that slides that supplies the shielding plate to pass on the vertical lateral wall of drain pipe, and the shielding plate passes the opening that slides and rather than sliding fit, the inside wall sliding fit of shielding plate and drain pipe.

Through adopting above-mentioned technical scheme, when the telescopic link of shrink cylinder is in natural state, the shielding plate shelters from the pipeline of drain pipe for the drain pipe does not switch on, and when cooling tower stop work, staff control shrink cylinder's shrink pole is withdrawed, makes the drain pipe switch on, thereby makes remaining rivers in the cooling tube bank discharge through the drain pipe.

Optionally, a first air inlet pipe is connected to the water inlet pipe, the first air inlet pipe is located between the first heat dissipation coiled pipe and the switch valve on the water inlet pipe, one end of the first air inlet pipe is communicated with the water inlet pipe, the other end of the first air inlet pipe is connected with a first blower, and the first air inlet pipe is connected with a first air inlet valve for controlling whether the first air inlet pipe is conducted or not; the water outlet pipe is connected with a second air inlet pipe, the second air inlet pipe is positioned between the second heat dissipation coiled pipe and the switch valve on the water outlet pipe, one end of the second air inlet pipe is communicated with the water outlet pipe, the other end of the second air inlet pipe is connected with a second blower, and the second air inlet pipe is connected with a second air inlet valve used for controlling whether the second air inlet pipe is conducted or not.

Through adopting above-mentioned technical scheme, when the cooling tower stop work, staff's control drainage subassembly makes the drain pipe switch on and close the ooff valve, open first admission valve and second admission valve simultaneously, afterwards, first blower and second hair-dryer are opened to the staff, the air current that first blower blew out passes through first heat dissipation coiled pipe, and drive the interior residual current of its removal, the air current that the second hair-dryer blew out passes through the second heat dissipation coiled pipe, and drive its interior residual current removal, thereby further improved remaining water discharging's efficiency and effect, and then further reduced the possibility that temperature was the interior pipeline frost crack of cooling tower when the below zero.

Optionally, the inner side wall of the ventilation window is connected with a ventilation grid for shielding the ventilation window.

Through adopting above-mentioned technical scheme, ventilative grid has reduced the possibility that external impurity gets into in the closed cooling tower from the transom.

It is optional, it retrieves the roller to rotate to be connected with on the lateral wall of cooling tower body, it corresponds the transom setting to retrieve the roller, it has the windshield cloth to twine on the roller to retrieve, the one end fixed connection of windshield cloth is in retrieving the roller, other end fixedly connected with connecting plate, fixedly connected with corresponds the fixed block that the connecting plate set up on the lateral wall of cooling tower body, the upper surface of fixed block has been seted up and has been supplied connecting plate male spread groove, connecting plate and spread groove grafting cooperation, be connected with the fastening component who is used for making connecting plate and fixed block stable connection on the fixed block, when the connecting plate is located the spread groove, the windshield cloth shelters from the transom.

Through adopting above-mentioned technical scheme, under the colder condition of weather, when the cooling tower stopped operating, the staff will keep out wind cloth and pull out from retrieving the roller to insert the connecting plate in the spread groove, make connecting plate stable connection on the fixed block through fastening components, at this moment, keep out wind cloth and shelter from the transom, reduced outside cold wind and got into the inside possibility of cooling tower, thereby further reduced the possibility that cooling tube group frost crack.

Optionally, the fastening assembly includes a fastening bolt, the fastening bolt penetrates through the fixing block and is in threaded connection with the connecting plate, and the fastening bolt is in sliding fit with the fixing block.

Through adopting above-mentioned technical scheme, after inserting the spread groove with the connecting plate, the staff screws up fastening bolt and can realize the stable connection of connecting plate and fixed block, and then realizes that the transom is stably sheltered from to the cloth that keeps out the wind, convenient operation.

Optionally, the water outlet pipe is connected with a temperature sensor, the sensing end of the temperature sensor is located in the water outlet pipe, and the temperature sensor is electrically connected to the water suction pump through a control system.

Through adopting above-mentioned technical scheme, when the temperature that temperature sensor detected was less than predetermined threshold value, the suction pump was in the off-state, and the cooling tube bank dispels the heat naturally, has practiced thrift the energy, and when the temperature that temperature sensor detected was higher than predetermined threshold value, control system controlled the suction pump operation to make the shower nozzle on the spray header spray water to the cooling tube bank, further dispel the heat.

Optionally, the cylinder is kept away from to the shielding plate, the sealing plate is perpendicular to the shielding plate, a sealing groove for the sealing plate to penetrate is formed in the inner side wall of the drain pipe, and the sealing plate is in sliding fit with the sealing groove.

Through adopting above-mentioned technical scheme, when the shielding plate sheltered from the pipe-line passageway of drain pipe, the closing plate chucking had improved the leakproofness in the seal groove, had reduced the possibility of leaking from the drain pipe when cooling tower normal use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the first heat dissipation coiled pipe, the second heat dissipation coiled pipe and the transition pipe with the inclination angles, compared with a pipeline without the inclination angles, residual water in the cooling pipe group is discharged more thoroughly, and the possibility of frost cracking of the pipeline in the cooling tower when the air temperature is below zero is further reduced;

2. the temperature sensor is arranged at the water outlet pipe, and whether the water pump runs or not is controlled according to the temperature measured by the temperature sensor, so that energy is saved.

Drawings

FIG. 1 is a schematic structural diagram of an antifreeze closed cooling tower in the embodiment of the application.

Fig. 2 is a schematic structural diagram for embodying the cooling tube group in the embodiment of the present application.

Fig. 3 is a sectional view for embodying a shower pipe in the embodiment of the present application.

Fig. 4 is a sectional view for embodying the shielding plate in the embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion a in fig. 1 in an embodiment of the present application.

Description of reference numerals: 1. a cooling tower body; 11. mounting a plate; 12. a ventilation window; 121. a gas permeable grid; 13. a fixed block; 131. connecting grooves; 132. a fastening assembly; 1321. fastening a bolt; 14. a spray water tank; 15. a water collector; 2. a cooling tube bank; 21. a first heat-dissipating serpentine tube; 22. a second heat-dissipating serpentine tube; 23. a transition duct; 231. a first inclined branch pipe; 232. a second inclined branch pipe; 233. a bottom branch pipe; 24. a snap ring; 3. a drain pipe; 31. a drainage assembly; 311. a shielding plate; 3111. a sealing plate; 312. a contracting cylinder; 32. sliding and opening; 33. a sealing groove; 4. a water inlet pipe; 41. a first intake pipe; 42. a first blower; 43. a first intake valve; 5. a water outlet pipe; 51. a second intake pipe; 52. a second blower; 53. a second intake valve; 54. a temperature sensor; 6. an on-off valve; 7. an exhaust fan; 8. a recovery roller; 81. a wind-blocking cloth; 811. a connecting plate; 9. a water pump; 91. a spray header; 911. a main pipe; 912. spraying branch pipes; 913. and (4) a spray head.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses frostproofing closed cooling tower. Referring to fig. 1 and 2, the anti-freezing closed cooling tower includes a cooling tower body 1 provided in a rectangular parallelepiped shape, and a cooling tube group 2 is provided in the cooling tower body 1. The cooling tube group 2 includes a first heat dissipation coil 21, a second heat dissipation coil 22, and a transition tube 23. The first heat dissipation coiled pipe 21 and the second heat dissipation coiled pipe 22 are vertically arranged, each straight pipe section of the first heat dissipation coiled pipe 21 from top to bottom is downwards inclined, and each straight pipe section of the second heat dissipation coiled pipe 22 from top to bottom is downwards inclined.

Referring to fig. 2 and 3, a plurality of clamping rings 24 are fixedly connected to two opposite inner side walls of the cooling tower body 1, the first heat dissipation coiled pipe 21 and the second heat dissipation coiled pipe 22 are connected to the inner side walls of the cooling tower body 1 through the clamping rings 24, an arc-shaped section between every two adjacent straight pipe sections of the first heat dissipation coiled pipe 21 is clamped in one clamping ring 24, and an arc-shaped section between every two adjacent straight pipe sections of the second heat dissipation coiled pipe 22 is clamped in one clamping ring 24.

Referring to fig. 2, the first and second heat-dissipating serpentine tubes 21 and 22 are arranged in parallel with each other, and a transition tube 23 is fixedly connected between the lower ends of the first and second heat-dissipating serpentine tubes 21 and 22. The transition duct 23 includes a first inclined leg 231, a second inclined leg 232, and a horizontally disposed bottom leg 233. The first and second inclined legs 231, 232 are both higher than the bottom leg 233 and are both inclined towards the bottom leg 233. The first inclined leg 231 is fixedly connected between the first heat dissipating serpentine tube 21 and the bottom leg 233, and the second inclined leg 232 is fixedly connected between the second heat dissipating serpentine tube 22 and the bottom leg 233.

Referring to fig. 2 and 4, the drain pipe 3 is vertically connected to the bottom branch pipe 233, the drain pipe 3 is a rectangular pipe, the upper end of the drain pipe 3 is communicated with the bottom branch pipe 233, and the lower end is open. The drain pipe 3 is connected with a drain assembly 31, and the drain assembly 31 includes a shielding plate 311 and a contraction cylinder 312.

Referring to fig. 2 and 3, a mounting plate 11 is fixedly connected between two opposite vertical inner side walls of the cooling tower body 1, a contraction cylinder 312 is connected to the upper surface of the mounting plate 11 through a bolt, and an expansion rod of the contraction cylinder 312 is horizontally arranged and fixedly connected with a shielding plate 311.

Referring to fig. 4, the shielding plate 311 is a rectangular plate, a sliding opening 32 for the shielding plate 311 to pass through is provided on the vertical side wall of the drain pipe 3, the shielding plate 311 passes through the sliding opening 32 and is in sliding fit with the sliding opening, the outer side wall of the shielding plate 311 is attached to the inner side wall of the sliding opening 32, and the shielding plate 311 is also in sliding fit with the inner side wall of the drain pipe 3. One end fixedly connected with closing plate 3111 that shutter 311 keeps away from the cylinder, closing plate 3111 perpendicular to shutter 311, offer the seal groove 33 that supplies closing plate 3111 to wear to establish on the inside wall of drain pipe 3, closing plate 3111 and seal groove 33 sliding fit.

Referring to fig. 2 and 4, when the telescopic rod of the contraction cylinder 312 is in a natural state, the shielding plate 311 shields the pipeline of the drain pipe 3, the sealing plate 3111 is clamped in the sealing groove 33, so that the drain pipe 3 is not conducted, and when the contraction cylinder 312 operates, the telescopic rod of the contraction cylinder 312 is retracted, so that the drain pipe 3 is conducted.

Referring to fig. 1 and 2, one end of the first heat dissipation coiled pipe 21 away from the transition pipe 23 is fixedly connected with a water inlet pipe 4, one end of the water inlet pipe 4 away from the first heat dissipation coiled pipe 21 penetrates out of the outer side wall of the cooling tower body 1 and is communicated to a water pump for providing power for water flow at an external water tank, and the water pump is communicated with a water outlet of the external water tank. One end of the second heat dissipation coiled pipe 22, which is far away from the transition pipe 23, is fixedly connected with a water outlet pipe 5, one end of the water outlet pipe 5, which is far away from the second heat dissipation coiled pipe 22, penetrates out of the outer side wall of the cooling tower body 1 and is communicated to a water inlet of equipment to be cooled, and a water outlet of the equipment to be cooled is communicated with a water inlet of an external water tank, so that a closed loop is formed.

Referring to fig. 1 and 2, the water inlet pipe 4 and the water outlet pipe 5 are respectively connected with a switch valve 6, and the switch valve 6 is used for controlling the conduction of the pipeline. Be connected with first intake pipe 41 on the inlet tube 4, first intake pipe 41 is located between the ooff valve 6 on first heat dissipation coiled pipe 21 and the inlet tube 4, and the one end of first intake pipe 41 communicates in inlet tube 4, and the other end is connected with first blower 42, and the air outlet of first blower 42 is towards in the first intake pipe 41. A first intake valve 43 for controlling the conduction of the first intake pipe 41 is connected to the first intake pipe 41.

Referring to fig. 1 and 2, a second air inlet pipe 51 is connected to the water outlet pipe 5, the second air inlet pipe 51 is located between the second heat dissipation coil 22 and the switch valve 6 on the water outlet pipe 5, one end of the second air inlet pipe 51 is communicated with the water outlet pipe 5, the other end is connected with a second blower 52, and an air outlet of the second blower 52 faces the inside of the second air inlet pipe 51. A second intake valve 53 for controlling whether or not the second intake pipe 51 is open is connected to the second intake pipe 51.

Referring to fig. 1 and 5, the upper surface of the cooling tower body 1 is provided with two heat exchange ports communicated to the inside of the cooling tower body 1, each heat exchange port is internally and fixedly connected with an exhaust fan 7, and an air inlet of each exhaust fan 7 faces to the inside of the cooling tower body 1 and is used for heat exchange between the air inside the cooling tower body 1 and the external environment. The ventilation windows 12 are respectively arranged on two vertical side walls of the cooling tower body 1 parallel to the first heat dissipation coiled pipe 21, the ventilation grids 121 are fixedly connected to the inner side walls of the ventilation windows 12, the ventilation grids 121 shield the ventilation windows 12, and the possibility that external impurities enter the cooling tower body 1 is reduced.

Referring to fig. 1 and 5, a recovery roller 8 is arranged above each ventilation window 12, the recovery roller 8 is horizontally arranged and rotatably connected to the vertical outer side wall of the cooling tower body 1, and the recovery roller 8 is parallel to the vertical outer side wall. Wind-proof cloth 81 is wound on the recovery roller 8, one end of the wind-proof cloth 81 is fixedly connected to the recovery roller 8, and the other end is fixedly connected with a connecting plate 811 horizontally arranged. The fixed block 13 is arranged below the ventilation window 12, and the fixed block 13 is horizontally arranged and fixedly connected to the vertical outer side wall of the cooling tower body 1.

Referring to fig. 1 and 5, the upper surface of the fixing block 13 is provided with a connecting groove 131 into which a connecting plate 811 is inserted, and the connecting plate 811 is inserted into the connecting groove 131. The fixing block 13 is connected with a fastening assembly 132, the fastening assembly 132 comprises three fastening bolts 1321, and the three fastening bolts 1321 are uniformly distributed along the length direction of the fixing block 13. When the connecting plate 811 is clamped in the connecting groove 131, the fastening bolt 1321 passes through the fixing block 13 and is screwed to the connecting plate 811, and the fastening bolt 1321 is slidably fitted to the fixing block 13. When the connection plate 811 is positioned in the connection groove 131, the wind blocking cloth 81 blocks the ventilation window 12.

Referring to fig. 2 and 3, a spray water tank 14 with an upper opening is fixedly connected to the bottom wall inside the cooling tower body 1, and the lower end opening of the drain pipe 3 faces the spray water tank 14. Fixedly connected with suction pump 9 on the vertical inside wall of cooling tower body 1, suction pump 9 intake end communicate in spray tank 14, and suction pump 9's play water end fixedly connected with spray header 91. Spray header 91 is including being responsible for 911 and a plurality of spray branch pipe 912, and the person in charge 911 passes through clamp connection in the vertical inside wall of cooling tower body 1, and spray branch pipe 912 is vertical setting, and spray branch pipe 912's lower extreme communicates in being responsible for 911, and spray branch pipe 912's upper end is the vertical inside wall that seals the form and pass through clamp connection in cooling tower body 1.

Referring to fig. 1 and 3, five shower branch pipes 912 are provided on each inner sidewall of the cooling tower body 1, on which the louver 12 is opened. Each of the shower branch pipes 912 is connected with five shower heads 913 disposed toward the first heat dissipating coil 21 or the second heat dissipating coil 22. The cooling tower body 1 is not connected with the water collector 15 between two vertical inner side walls of the spraying branch pipe 912, and the water collector 15 is arranged in a wave shape and is positioned above the cooling pipe group 2.

Referring to fig. 1 and 3, a temperature sensor 54 is fixedly connected to the water outlet pipe 5, and a sensing end of the temperature sensor 54 is located in the water outlet pipe 5 and is used for detecting the temperature of the water flowing out of the cooling tower body 1. The temperature sensor 54 is electrically connected to the water pump 9 through a control system, when the water temperature detected by the temperature sensor 54 is lower than a preset threshold value, the water pump 9 is in a closed state, and water flow in the cooling pipe group 2 naturally dissipates heat through the cooling pipe group 2; when the temperature of the water detected by the temperature sensor 54 is lower than a preset threshold value, the control system sends an electric signal to the suction pump 9, so that the suction pump 9 starts to operate. The water pump 9 pumps the water in the spray tank 14 and sprays the water to the cooling tube bank 2 through the spray heads 913, so that the temperature of the tubes in the cooling tube bank 2 is reduced, and the heat dissipation effect is improved.

The implementation principle of the anti-freezing closed cooling tower in the embodiment of the application is as follows: when the cooling operation needs to be carried out, the on-off valves 6 on the water outlet pipe 5 and the water inlet pipe 4 are in the open state, the first air inlet valve 43 and the second air inlet valve 53 are in the closed state, the wind blocking cloth 81 is in the contraction state, meanwhile, the baffle plate 311 blocks the water outlet pipe 3, at the moment, the worker starts the water pump at the external water tank, so that the water to be cooled enters the cooling pipe group 2 through the water inlet pipe 4 and sequentially passes through the first heat dissipation coiled pipe 21, the transition pipe 23 and the second heat dissipation coiled pipe 22, and therefore cooling is carried out, the cooled water flows out through the water outlet pipe 5 and finally enters the equipment needing cooling. In the process, the exhaust fan 7 is started at regular time according to a preset frequency, so that hot air in the cooling tower body 1 is exchanged with outside air, and the temperature in the cooling tower body 1 is reduced; meanwhile, the temperature sensor 54 detects the temperature of the water flow in the water outlet pipe 5 in real time, and when the detected temperature is greater than a preset threshold value, the control system automatically controls the water pump 9 to operate, so that the spray heads 913 in the cooling tower body 1 spray water to the cooling pipe group 2, and the cooling pipe group 2 is cooled, and a good cooling effect is ensured.

When the ambient temperature reaches below zero and the cooling tower needs to be stopped, the worker pulls the connecting plate 811 to insert the connecting plate into the corresponding connecting groove 131 and locks the connecting plate through the fastening bolt 1321, so that the ventilation window 12 is shielded by the wind shielding cloth 81, the possibility that cold air enters the cooling tower body 1 through the ventilation window 12 is reduced, and the possibility that pipelines in the cooling tower are frost-cracked is reduced.

Meanwhile, the worker closes the water pump at the external water tank, closes the two switch valves 6, and starts the contracting cylinder 312 to conduct the water discharging pipe 3, at this time, the water remaining in the first heat dissipating coiled pipe 21 and the second heat dissipating coiled pipe 22 automatically flows into the transition pipe 23 under the action of gravity, and is finally discharged into the spraying water tank 14 through the water discharging pipe 3, after the automatic water discharging is performed for a period of time, the worker opens the first air inlet valve 43 and the second air inlet valve 53, and simultaneously starts the first blower 42 and the second blower 52, the air flow blown out by the first blower 42 and the second blower 52 moves along the pipe body of the cooling pipe group 2, and drives the remaining water to flow out from the water discharging pipe 3, so that the water discharging effect and efficiency are further improved, and the effect of reducing the possibility of frost cracking of the pipe in the cooling tower is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an anti-freeze closed cooling tower which characterized in that: the cooling tower comprises a cooling tower body (1), a cooling pipe group (2) is connected in the cooling tower body (1), the cooling pipe group (2) comprises a first heat dissipation coiled pipe (21), a second heat dissipation coiled pipe (22) and a transition pipe (23), the first heat dissipation coiled pipe (21) and the second heat dissipation coiled pipe (22) are vertically arranged, each straight pipe section of the first heat dissipation coiled pipe (21) from top to bottom is downwards inclined, each straight pipe section of the second heat dissipation coiled pipe (22) from top to bottom is downwards inclined, and the transition pipe (23) is connected between the lower end of the first heat dissipation coiled pipe (21) and the lower end of the second heat dissipation coiled pipe (22); the transition pipe (23) comprises a horizontally arranged bottom branch pipe (233) and inclined branch pipes inclined towards the bottom branch pipe (233), the two ends of the bottom branch pipe (233) of each inclined branch pipe are respectively connected with one drain pipe (3) which is vertically arranged on the bottom branch pipe (233), the upper end of each drain pipe (3) is communicated with the bottom branch pipe (233), each drain pipe (3) is connected with a drainage assembly (31) used for controlling the conduction of each drain pipe (3), one end, far away from the transition pipe (23), of the first heat dissipation coiled pipe (21) is connected with a water inlet pipe (4), one end, far away from the transition pipe (23), of the second heat dissipation coiled pipe (22) is connected with a water outlet pipe (5), and the water inlet pipe (4) and the water outlet pipe (5) are respectively connected with a switch valve (6); be connected with air exhauster (7) that are used for carrying out the heat exchange with external environment in cooling tower body (1) on cooling tower body (1), transom (12) have been seted up on cooling tower body (1), be connected with top open-ended spray tank (14) on the diapire of cooling tower body (1) inside, the lower extreme of drain pipe (3) is towards spray tank (14), cooling tower body (1) in-connection has suction pump (9), the end of intaking of suction pump (9) communicates in spray tank (14), it is connected with spray pipe (91) to go out the water end, be connected with shower nozzle (913) that a plurality of orientation cooling tube group (2) set up on spray pipe (91), cooling tower body (1) in-connection has water receiver (15), water receiver (15) are located cooling tube group (2) top.

2. The antifreeze closed cooling tower of claim 1, wherein: drain pipe (3) are the rectangular pipe, drainage subassembly (31) including baffle (311) that are used for sheltering from the pipeline of drain pipe (3) with connect in shrink cylinder (312) of cooling tower body (1) inside wall, the telescopic link of shrink cylinder (312) is level setting and fixed connection baffle (311), set up the opening (32) that slides that supply baffle (311) to pass on the vertical lateral wall of drain pipe (3), baffle (311) pass opening (32) that slides and rather than sliding fit, baffle (311) and the inside wall sliding fit of drain pipe (3).

3. The antifreeze closed cooling tower of claim 1, wherein: a first air inlet pipe (41) is connected to the water inlet pipe (4), the first air inlet pipe (41) is located between the first heat dissipation coiled pipe (21) and the switch valve (6) on the water inlet pipe (4), one end of the first air inlet pipe (41) is communicated with the water inlet pipe (4), the other end of the first air inlet pipe is connected with a first blower (42), and a first air inlet valve (43) used for controlling whether the first air inlet pipe (41) is conducted or not is connected to the first air inlet pipe (41); be connected with second intake pipe (51) on outlet pipe (5), second intake pipe (51) are located between second heat dissipation coiled pipe (22) and ooff valve (6) on outlet pipe (5), and the one end of second intake pipe (51) communicates in outlet pipe (5), and the other end is connected with second hair-dryer (52), is connected with second admission valve (53) that are used for controlling whether second intake pipe (51) switch on second intake pipe (51).

4. The antifreeze closed cooling tower of claim 1, wherein: the inner side wall of the ventilation window (12) is connected with a ventilation grid (121) used for shielding the ventilation window (12).

5. The antifreeze closed cooling tower of claim 1, wherein: it retrieves roller (8) to rotate to be connected with on the lateral wall of cooling tower body (1), it sets up to retrieve roller (8) corresponding transom (12), it has wind-break cloth (81) to twine on roller (8) to retrieve, the one end fixed connection of wind-break cloth (81) retrieves roller (8), other end fixed connection has connecting plate (811), fixed block (13) that fixedly connected with corresponds connecting plate (811) setting on the lateral wall of cooling tower body (1), supply connecting plate (811) male spread groove (131) have been seted up to the upper surface of fixed block (13), connecting plate (811) and spread groove (131) are pegged graft the cooperation, be connected with fastening component (132) that are used for making connecting plate (811) and fixed block (13) stable connection on fixed block (13), when connecting plate (811) are located spread groove (131), transom (12) are sheltered from to wind-break cloth (81).

6. The antifreeze closed cooling tower of claim 5, wherein: the fastening assembly (132) comprises a fastening bolt (1321), the fastening bolt (1321) penetrates through the fixing block (13) and is in threaded connection with the connecting plate (811), and the fastening bolt (1321) is in sliding fit with the fixing block (13).

7. The antifreeze closed cooling tower of claim 1, wherein: the water outlet pipe (5) is connected with a temperature sensor (54), the sensing end of the temperature sensor (54) is positioned in the water outlet pipe (5), and the temperature sensor (54) is electrically connected with the water suction pump (9) through a control system.

8. The antifreeze closed cooling tower of claim 2, wherein: one end fixedly connected with closing plate (3111) that cylinder was kept away from to shielding plate (311), closing plate (3111) perpendicular to shielding plate (311), offer seal groove (33) that supply closing plate (3111) to wear to establish on the inside wall of drain pipe (3), closing plate (3111) and seal groove (33) sliding fit.

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