CN115682762A

CN115682762A - Closed cooling tower with anti-freezing structure

Info

Publication number: CN115682762A
Application number: CN202211315258.1A
Authority: CN
Inventors: 成良高
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-02-03

Abstract

The application provides a closed cooling tower with structure prevents frostbite relates to cooling tower technical field. The utility model provides a closed cooling tower with structure of preventing frostbite contains cooling tower subassembly, first closure part symmetry set up in the outer wall of body of the tower, second closure part symmetry set up in the inner wall of body of the tower, filter the piece set up in the interior bottom of body of the tower, utilize closing of first closure part and second closure part, guaranteed to a certain extent that the inside temperature of body of the tower can not sharply descend, water in the water-collecting cabin of bottom in external pressure equipment with heat exchanger and the body of the tower is got rid of as far as possible, avoid inside residual water to form freezing at low temperature, disturb next use, avoided simultaneously to a certain extent because of the circulation of air carries the various microorganisms that get into, grow moss such as dark moss under the shining of light, cause the ventilation of cooling tower to be obstructed.

Description

Closed cooling tower with anti-freezing structure

Technical Field

The application relates to the field of cooling towers, in particular to a closed cooling tower with an anti-freezing structure.

Background

Generally speaking, a closed cooling tower (also called an evaporative air cooler, a closed cooling tower or a closed cooling tower) is characterized in that a tubular heat exchanger is arranged in the tower, the cooling effect is ensured through heat exchange of circulating air, spray water outside the pipe and circulating water inside the pipe, the circulating water is in closed circulation inside the pipe, the water quality can be ensured not to be polluted, the efficient operation of main equipment is well protected, the service life is prolonged, when the outside air temperature is lower, a spray water system can be stopped, the water saving effect is achieved, and the closed cooling tower is widely applied to industries such as ferrous metallurgy, power electronics, machining and air conditioning systems along with implementation of energy saving and emission reduction policies and increasing shortage of water resources in recent years.

In the related art, in a closed cooling tower used in a severe cold season or in a severe cold region, after the cooling tower is closed, circulating water in the cooling tower is easy to freeze and condense due to invasion of external cold currents, so that the next use of the closed cooling tower is seriously affected, and the circulating water is condensed into ice to form expansion due to water condensation, so that a pipeline in the cooling tower is likely to crack.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. For this reason, this application provides a closed cooling tower with frost-proof structure, when severe cold season or severe cold district use, after using the completion, close first closure member and second closure member, make the body of the tower form sealed effect to a certain extent, the erosion of external cold flow to the body of the tower inside has been reduced, the temperature of having guaranteed the body of the tower inside to a certain extent can not sharply descend, utilize the water of outside pressure equipment in with heat exchanger and the water-collecting cabin of bottom in the body of the tower to get rid of as far as simultaneously, the inside residual water of the body of the tower forms to freeze at low temperature after avoiding the time of having a specified duration, disturb next use, cause the inside device of the body of the tower impaired even.

The application provides a closed cooling tower with frostproofing structure contains the cooling tower subassembly, the cooling tower subassembly contains body of the tower, heat exchanger, sprays frock and fan, heat exchanger set up in the body of the tower, spray the frock set up in heat exchanger top side, the fan communicate in the body of the tower top, wherein, be provided with temperature sensor on the body of the tower, temperature sensor is used for control start of spraying the frock stops, the bottom is provided with the sump tank in the body of the tower, the sump tank with the input intercommunication of spraying the frock still includes:

the tower body is provided with an anti-freezing component;

the anti-freezing assembly comprises a first closing piece, a second closing piece and a filter piece, wherein the first closing piece is symmetrically arranged on the outer wall of the tower body, the second closing piece is symmetrically arranged on the inner wall of the tower body, the second closing piece is matched with the first closing piece, and the filter piece is arranged at the inner bottom of the tower body.

According to the closed cooling tower with anti-freezing structure of the embodiment of the application, the beneficial effects are that: utilize closing of first closure member and second closure member for the tower body forms the sealed effect to a certain extent, the erosion of external cold current to the tower body inside has been reduced, the temperature of having guaranteed the tower body inside to a certain extent can not sharply descend, utilize external pressure equipment to get rid of the water in the collecting chamber of bottom in heat exchanger and the tower body as far as simultaneously, the inside residual water of tower body forms to freeze at low temperature after avoiding the time for a long time, disturb next use, cause the inside device of tower body impaired even, various microorganisms of entering have been avoided carrying because of the circulation of air simultaneously to a certain extent, moss such as the growth dark blue moss under the illumination of light, the ventilation that causes the cooling tower is obstructed, and because of the existence of moss especially in collecting chamber, it forms moss to lead to the fact the collecting chamber more easily, cause the jam or even the damage of spraying frock.

In addition, the closed cooling tower with the anti-freezing structure according to the embodiment of the application also has the following additional technical characteristics:

in some embodiments of the present application, the side wall of the tower body is symmetrically provided with air inlet windows, and the air inlet windows are slidably inserted with filter screens.

In some embodiments of this application, heat exchanger's water inlet sets up in the delivery port top, heat exchanger pass through the mount rigid coupling in the inner wall of shaft.

In some embodiments of the present application, the heat exchanger employs a copper tube, and the copper tube has a regular downward-inclined design in a section in a height direction of the heat exchanger.

In some embodiments of this application, the frock of spraying contains spray pump, shower and spiral nozzle, the end of intaking of spray pump fixed communicate in the sump, the fixed intercommunication of the play water end of spray pump has the shower, the shower rigid coupling in heat exchanger top side, spiral nozzle sets up to a plurality ofly, and is a plurality of spiral nozzle rigid coupling in the shower orientation one side of heat exchanger.

In some embodiments of the present application, the first closure member includes a cover plate, a sliding groove, a limiting hole, a baffle, a handle, a limiting bolt, and an extension spring, the cover plate is fixedly connected to the outer wall of the tower body, the sliding groove is symmetrically disposed, the sliding groove is disposed on the cover plate, the limiting hole is disposed on the cover plate, the baffle is slidably inserted into the cover plate, the handle is fixedly connected to the baffle, the handle is slidably fitted to the sliding groove, the limiting bolt is inserted into the handle, the limiting bolt is fitted to the limiting hole, and two ends of the extension spring are fixedly connected to the handle and the limiting bolt respectively.

In some embodiments of the present application, the second closing element includes a gantry, a T-bar, and a hinge plate, the gantry is disposed on an inner wall of the tower body, the T-bar is fixedly connected to the gantry, the T-bar is slidably inserted into the inner wall of the tower body, and the hinge plate is rotatably connected to the gantry.

In some embodiments of the present application, the leaf plates are uniformly arranged along the height direction of the gantry, and a plurality of the leaf plates are overlapped with each other.

In some embodiments of this application, filter contain catchment hatch cover, filter plate and filter box, catchment hatch cover rigid coupling in the body of the tower inner wall, the filter plate rigid coupling in catchment hatch cover bottom, the filter box is sealed to slide set up in the body of the tower is close to one side of filter plate, just the filter box with form the intercommunication between the filter plate.

In some embodiments of the present application, the water collection hatch is disposed obliquely, and one side of the water collection hatch close to the filter box is lower than the other side.

In some embodiments of this application, spray the frock with be provided with the subassembly that absorbs water between the fan, the subassembly that absorbs water contains the cabin and the extensible member of absorbing water, the cabin rigid coupling that absorbs water in the body of the tower inner wall, the extensible member sets up to a plurality ofly, and is a plurality of the stiff end rigid coupling of extensible member in the interior top of body of the tower, the output rigid coupling of extensible member in the upper surface in the cabin of absorbing water.

In some embodiments of this application, the bottom in the cabin that absorbs water is the fretwork design, the interior bottom in the cabin that absorbs water has set gradually and has absorbed water spare and otter board, absorb water spare set up in the interior bottom in the cabin that absorbs water with between the otter board, the otter board with the output rigid coupling of extensible member.

In some embodiments of the present application, a T-shaped block is fixedly connected to the peripheral side of the mesh plate, and the T-shaped block is limited to slide on the inner wall of the water suction cabin.

In some embodiments of this application, be provided with on the body of the tower and preheat the subassembly, it contains air pump and blast pipe to preheat the subassembly, the air pump rigid coupling in the body of the tower, the one end rigid coupling of blast pipe in the output of air pump, the other end of blast pipe set up in heat exchanger with filter between the piece.

In some embodiments of the present application, a plurality of exhaust nozzles are fixedly connected to one end of the exhaust pipe disposed in the tower body, and the plurality of exhaust nozzles are disposed on one side of the exhaust pipe facing the heat exchanger.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

In the use, its inside vapor that forms because of the heat exchange, arrange to the outside in-process of body of the tower via the fan, can be with partial cooling water discharge cooling tower, cause the waste of water resource, and in order to avoid the waste of water resource as far as, the majority is provided with water absorption equipment at body of the tower internal top, form the comdenstion water with vapor in water absorption equipment and then drip to the collecting tank of body of the tower bottom in, carry out the reuse of resource, but in the severe cold environment, a large amount of water that is rich in water absorption equipment, can condense into ice under the temperature that reduces gradually, then cause the shutoff of whole water absorption equipment, and can make the fan can't extract the action to body of the tower inside, seriously influence the later stage use of this kind of closed cooling tower with frostproofing structure.

Through starting the extensible member, the slip of direction about driving the otter board to pass through the T-shaped piece and accomplishing in the water absorption cabin, the piece that absorbs water to its bottom carries out iterative extrusion action, make the comdenstion water that forms in it extruded, the drippage is to the bottom in the body of the tower, the water that contains of as little as possible in the piece that absorbs water has been guaranteed to a certain extent, avoided the too much inside shutoff that forms of the piece that absorbs water that makes of water content, it can' T dash the piece that absorbs water to cause the air current, cause this cooling tower exhaust failure, also avoid in cold environment as far as simultaneously, after stopping using this cooling tower, condense ice because of being rich in the water that absorbs water in the piece, then influence the later stage use of closed cooling tower.

And after the decommissioning, heat exchanger and catchment cabin in it and the piece that absorbs water carry out the drainage operation, can reduce the surplus water and condense into ice to a certain extent, then cause the influence to the use of this closed cooling tower, but, on the outer wall of heat exchanger copper pipe, inside spiral nozzle and the piece that absorbs water on the spraying frock, more or less all can have the surplus water, and this remaining water, can be along with the decline of temperature gradually at the inside frozen layer that forms of body of the tower, and if not carry out the preliminary treatment to this frozen layer, directly open this kind of closed cooling tower that has anti-freezing structure, can make heat exchanger temperature shock rise, bring harm to the life of taking a breath, and because of fan work makes the negative pressure in the body of the tower, easily cause certain damage to the piece that absorbs water.

Before using this closed cooling tower with frostproofing structure, can pass through external heat source (hot gas flow) of air pump, carry to a plurality of exhaust nozzle through the blast pipe, then inside a plurality of exhaust nozzle blown the hot gas flow to heat exchanger and body of the tower, the frozen layer that forms because of the residual water body to the body of the tower inside melts, and carried out the preheating of certain degree to heat exchanger's copper tubing simultaneously, avoid in the normal use process, heat exchanger leads to it to follow low temperature state temperature shock rise because of the higher liquid of temperature that needs to circulate, the copper tubing is impaired on having avoided heat exchanger, and melt the back to the frozen layer, make the part that absorbs water form ventilative state, the normal exhaust of the fan of being convenient for.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic view of an overall structure of a closed cooling tower having an anti-freezing structure according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of a closed cooling tower with an anti-freeze structure according to an embodiment of the present application;

FIG. 3 is an exploded view of a cooling tower assembly according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a heat exchanger according to an embodiment of the present application;

FIG. 5 is a schematic illustration of a position of a freeze protection assembly according to an embodiment of the present application;

figure 6 is an exploded view of the structure of a first closure member according to an embodiment of the present application;

figure 7 is an exploded view of a portion of a first closure member according to an embodiment of the present application;

figure 8 is an exploded view of the construction of a second closure according to an embodiment of the present application;

FIG. 9 is an exploded view of the filter construction according to an embodiment of the present application;

FIG. 10 is a schematic structural view of a water absorbing assembly according to an embodiment of the present application;

FIG. 11 is an exploded view of the structure of a water absorbent assembly according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a preheat assembly structure according to an embodiment of the application.

Icon: 100. cooling the tower assembly; 110. a tower body; 111. an air inlet window; 112. filtering with a screen; 120. a heat exchanger; 121. a water inlet; 122. a water outlet; 123. a fixed mount; 130. spraying a tool; 131. a spray pump; 132. a shower pipe; 133. a spiral nozzle; 140. a fan; 200. an anti-freeze assembly; 210. a first closure member; 211. a cover plate; 212. a chute; 213. a limiting hole; 214. a baffle plate; 215. a grip; 216. a limit bolt; 217. a tension spring; 220. a second closure member; 221. a gantry; 222. t-shaped strips; 223. a leaf plate; 230. a filter member; 231. a sump cover; 232. filtering the plate; 233. a filter box; 300. a water absorbing assembly; 310. a water absorption cabin; 311. a water absorbing member; 312. a screen plate; 313. a T-shaped block; 320. a telescoping member; 400. a preheating assembly; 410. an air pump; 420. an exhaust pipe; 430. an exhaust nozzle.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

As shown in fig. 1 to 12, a closed cooling tower with an anti-freezing structure according to an embodiment of the present application includes a cooling tower assembly 100, the cooling tower assembly 100 includes a tower body 110, a heat exchanger 120, a spray tool 130 and a blower 140, the heat exchanger 120 is disposed in the tower body 110, the spray tool 130 is disposed on a top side of the heat exchanger 120, the blower 140 is connected to a top of the tower body 110 for discharging heat inside the tower body 110 and discharging damp and hot water vapor generated between the spray tool 130 and the heat exchanger 120, wherein a temperature sensor is disposed on the tower body 110 for controlling start and stop of the spray tool 130, specifically, the temperature sensors are disposed in plurality, the temperature sensors transmit detected temperature inside the tower body 110 and detected temperature of liquid discharged from the heat exchanger 120 to an external control cabinet, the control cabinet controls start and stop of the spray tool 130 as required, the spray tool 130 stops the spray tool 130 when the temperature inside the tower body 110 is low, the spray tool 130 is opened when the temperature is high, so as to increase heat dissipation efficiency of the heat exchanger 120 inside the tower body 110 and control the temperature of the liquid inside the heat exchanger 120, a water collecting tank is disposed for circulating and communicating the spray tool 130 with the water collecting tank, the spray tool is disposed in the spray tool, and the spray tank, and the spray tool is disposed in the spray tank, and the spray tool is disposed to utilize the water collecting tank: an anti-freeze assembly 200, a water absorption assembly 300, and a preheating assembly 400.

Furthermore, a crawling ladder and a maintenance door are designed on the side face of the tower body 110, the crawling ladder is convenient for workers to maintain equipment on the top end of the tower body 110, and the maintenance door is convenient for the workers to maintain the equipment inside the tower body 110.

It should be noted that, the maintenance door is in sealing fit with the tower body 110, which guarantees the sealing performance of the tower body 110 to a certain extent and prevents the inside of the tower body 110 from being corroded by the external cold air flow.

Further, the tower body 110 is provided with a water inlet valve and a water discharge valve on the side wall of the water collecting chamber, wherein a ball float valve is arranged in the water collecting chamber, so that the water level in the water collecting chamber can be conveniently controlled, and water can be added into or drained from the water collecting chamber.

Wherein the anti-freeze assembly 200 is disposed on the tower body 110.

The anti-freezing assembly 200 comprises a first closing part 210, a second closing part 220 and a filtering piece 230, wherein the first closing part 210 is symmetrically arranged on the outer wall of the tower body 110 and used for sealing the tower body 110 to a certain degree, the second closing part 220 is symmetrically arranged on the inner wall of the tower body 110, the second closing part 220 is matched with the first closing part 210 and matched with the first closing part 220, the first closing part and the second closing part form a certain sealing effect on the tower body 110 as far as possible, the filtering piece 230 is arranged at the inner bottom of the tower body 110 and used for filtering circulating water in a water collecting cabin, and the blockage of the spraying tool 130 is avoided.

The following describes a use of a closed cooling tower having an antifreeze structure according to an embodiment of the present application with reference to the accompanying drawings:

when the spray tool is normally used, the fan 140 is started, at this time, the fan 140 discharges the air inside the tower body 110 outwards, under the action of air pressure, external air current flows in from the positions of the first closing part 210 and the second closing part 220 on the two sides of the bottom of the tower body 110, high-speed circulating air current is formed inside the tower body 110, liquid with higher temperature which needs to be subjected to heat exchange is conveyed to the heat exchanger 120 inside the tower body 110 through the external pressure device, heat exchange is performed through flowing inside the tower body 110 and contacting with wind fluid, so that the temperature of the liquid passing through the heat exchanger 120 is reduced, meanwhile, the temperature sensor detects the temperature inside the tower body 110 and the temperature of the liquid at the discharge end of the heat exchanger 120, start-stop operation is performed on the spray tool 130 according to the result of the detected temperature, if the discharged liquid is higher, the spray tool 130 is started through the external control cabinet to extract water from the water collection tank to the heat exchanger 120 for spraying, the surface area of water drops is increased by utilizing the formed particles of the sprayed water drops which vertically move downwards at a high speed, meanwhile, the water drops cover the heat exchanger 120, the heat inside the heat exchanger 120 is absorbed to form water vapor, the water vapor is discharged out of the tower body 110 through the fan 140 along with the air flow, the falling speed of the water drops is delayed when the water drops meet the air flow of the upper body in the falling process, so that the heat exchange time is prolonged, the heat exchange effect is increased, when the tower body is used in severe cold seasons or severe cold areas, the first closing part 210 and the second closing part 220 are closed after the use is finished, the tower body 110 forms a sealing effect to a certain extent, the corrosion of external cold flow to the inside of the tower body 110 is reduced, the temperature inside the tower body 110 is ensured not to be rapidly reduced to a certain extent, and meanwhile, the heat exchanger 120 and the water in the water collecting cabin at the bottom in the tower body 110 are removed as much as possible by utilizing external pressure equipment, the phenomenon that residual water in the tower body 110 freezes at low temperature after a long time, interferes with next use and even causes damage to devices in the tower body 110 is avoided.

In addition, the closed cooling tower with the anti-freezing structure according to the embodiment of the application has the following additional technical characteristics:

it should be noted that, the side wall of the tower body 110 is symmetrically provided with air inlet windows 111, the air inlet windows 111 are slidably inserted with filter screens 112, and the slidably inserted filter screens 112 can firstly filter impurities in the airflow entering the tower body 110, and secondly facilitate the detachment and cleaning of the filter screens 112.

The water inlet 121 of the heat exchanger 120 is disposed above the water outlet 122, and the heat exchanger 120 is fixedly connected to the inner wall of the tower body 110 through the fixing frame 123.

It should be noted that, the heat exchanger 120 adopts a copper tube, and the copper tube is designed to be inclined downwards regularly in the height direction cross section of the heat exchanger 120, the heat transfer effect of the copper tube is better, and the heat exchange efficiency can be improved to a certain extent, and meanwhile, the copper tube designed to be inclined downwards regularly, so that the liquid in the copper tube can actively flow out of the water outlet 122 under the action of gravity, thereby avoiding the residual liquid in the heat exchanger 120 inside the tower body 110, especially in a cold environment, after the closed cooling tower stops working, the freezing caused by the residual liquid in the closed cooling tower can be avoided, and the phenomenon of cracking caused by the increase of the copper tube in the liquid freezing process due to the blockage is even caused.

Further, the spraying tool 130 comprises a spraying pump 131, a spraying pipe 132 and a spiral nozzle 133, the water inlet end of the spraying pump 131 is fixedly communicated with the water collecting chamber, the water outlet end of the spraying pump 131 is fixedly communicated with the spraying pipe 132, the spraying pipe 132 is fixedly connected to the top side of the heat exchanger 120, the spiral nozzle 133 is arranged in a plurality of numbers, the spiral nozzles 133 are fixedly connected to one side of the spraying pipe 132 facing the heat exchanger 120, the spiral nozzle 133 can spray water pumped by the spraying pump 131 into tiny liquid drops to form fog, and due to the design of the internal structure of the spiral nozzle 133, the blockage phenomenon can be avoided to a certain extent, the sprayed water fog can increase the area of heat exchange, and the efficiency of heat exchange is increased.

Further, the first closing member 210 includes a cover plate 211, a sliding slot 212, a limiting hole 213, a baffle 214, a handle 215, a limiting bolt 216, and a tension spring 217, the cover plate 211 is fixedly connected to the outer wall of the tower body 110, a cavity is formed between the cover plate 211 and the outer wall of the tower body 110, the sliding slot 212 is symmetrically disposed, the sliding slot 212 is disposed on the cover plate 211, the limiting hole 213 is disposed on the cover plate 211, the baffle 214 is slidably inserted into the cavity formed between the cover plate 211 and the outer wall of the tower body 110, the handle 215 is fixedly connected to the baffle 214, the handle 215 is slidably engaged with the sliding slot 212, the limiting bolt 216 is inserted into the handle 215, the limiting bolt 216 is adapted to the limiting hole 213, and two ends of the tension spring 217 are respectively fixedly connected to the handle 215 and the limiting bolt 216, it should be noted that the cover plate 211 is disposed at the air inlet window 111, so as to avoid the cover plate 211 itself causing the air inlet window 111 to be in a closed state, wherein the baffle 214 is not smaller than the size of the opening of the air inlet window 111, so that the baffle 214 can block the air inlet window 111, and the air inlet window 111 can be understood that the air inlet window 111 is disposed below the baffle 111 by pulling force of the baffle 216 and the baffle 213, when the baffle 111 is disposed, and the air inlet window is disposed above the baffle 111, and the air inlet window is disposed, and the baffle 111 is disposed in a downward state, and the air inlet window is disposed, and the baffle 111 is disposed below the baffle 213, and the baffle 111 is disposed, and the air inlet window is disposed below the baffle 111.

Specifically, the baffle 214 may be disposed between the cover 211 and the tower 110 to form a sliding seal, so as to further ensure the sealing performance of the tower 110 and reduce the erosion of the external cold flow.

Further, the second closing part 220 comprises a portal frame 221, a T-shaped strip 222 and a flap 223, the portal frame 221 is arranged on the inner wall of the tower body 110, the T-shaped strip 222 is fixedly connected to the portal frame 221, and the T-shaped strip 222 is slidably inserted into the inner wall of the tower body 110, so that the second closing part 220 can be conveniently mounted or dismounted inside the tower body 110, the flap 223 can be conveniently cleaned subsequently, and the flap 223 is rotatably connected to the portal frame 221.

Furthermore, the leaf plates 223 are uniformly arranged along the height direction of the gantry 221, and the plurality of leaf plates 223 are stacked on each other, and it should be noted that the leaf plates 223 completely cover the air inlet window 111 in a stacked state.

It can be understood that the flaps 223 in the initial state form a mutually overlapped state under the action of their own weight, and the air inlet window 111 forms a sealed state, so that external light is prevented from irradiating the interior of the tower body 110, and simultaneously various microorganisms carried by air circulation are prevented to a certain extent from growing moss plants such as lichen, etc. under the irradiation of light, so that the ventilation of the cooling tower is prevented, and the moss plants, especially in the water collecting chamber, can block the spray pipe 132 and the spiral nozzle 133 in the cooling tower, and similarly, when not in use, the mutually overlapped flaps 223 cooperate with the baffle 214 to form double sealing on the air inlet window 111, so that the falling speed of the temperature in the tower body 110 can be effectively slowed down, and the phenomenon that the residual water in the tower body 110 freezes in the discharging process can be avoided, and in the normal use process, the air suction function of the fan 140, the air flow can flow from the outside to the interior of the tower body 110 through the air inlet window 111, and under the pressure, the mutually overlapped flaps 223 can rotate on the portal frame 221, so as to form an open state, and the air flow can be circulated.

It should be noted that, the filter member 230 includes a water collecting cover 231, a filter plate 232 and a filter box 233, the water collecting cover 231 is fixedly connected to the inner wall of the tower body 110, the filter plate 232 is fixedly connected to the bottom end of the water collecting cover 231, the filter box 233 is slidably disposed on one side of the tower body 110 close to the filter plate 232 in a sealing manner, and the filter box 233 and the filter plate 232 are communicated with each other, wherein a filter material is disposed inside the filter box 233, water in the water collecting cover is filtered, and blockage of the shower pipe 132 and the spiral nozzle 133 due to inclusion of impurities in the water is avoided.

Furthermore, the water collecting hatch 231 is obliquely arranged, one side of the water collecting hatch 231 close to the filter box 233 is lower than the other side, so that water mist sprayed by the spiral nozzle 133 forms water flow on the water collecting hatch 231 to flow into the filter box 233 for filtering, and due to the design of the water collecting hatch 231, the closed cooling tower with the anti-freezing structure is further prevented from being irradiated in the water collecting hatch due to light rays in the using process, moss plants such as moss are generated in water in the closed cooling tower, and then the spray pipe 132 and the spiral nozzle 133 are blocked.

Therefore, when the cooling tower is used in severe cold seasons or severe cold areas, after the use is completed, the limiting bolt 216 is pulled, the limiting bolt 216 is separated from the limiting hole 213, the baffle 214 slides downwards along the sliding groove 212, so that the baffle 214 forms complete plugging on the air inlet window 111, meanwhile, because the fan 140 stops working, no air flow is formed inside the tower body 110, therefore, under the action of gravity, the originally opened leaf plates 223 naturally rotate on the portal frame 221 at the moment to form a mutually overlapped state, the air inlet window 111 is plugged again, double plugging is realized, the temperature inside the tower body 110 cannot drop rapidly as far as possible, meanwhile, because of the red copper pipe which is designed in a regular downward inclination mode on the heat exchanger 120, the phenomenon that the residual liquid in the red copper pipe is blocked and even frozen due to the increase in the freezing process is avoided, and further, the phenomenon that the residual liquid in the water collecting cabin is frozen and the residual water is collected and used in the closed cooling tower is avoided by using an external pressure device.

In the related art, in the use process of the closed cooling tower with the anti-freezing structure, water vapor formed due to heat exchange in the closed cooling tower is discharged to the outside of the tower body 110 through the fan 140, part of cooling water is discharged out of the cooling tower, so that waste of water resources is caused, in order to avoid waste of water resources as much as possible, most of the water absorption equipment is arranged at the top in the tower body 110, the water vapor forms condensed water in the water absorption equipment and then drips into the water collection cabin at the bottom of the tower body 110, so that the resources are recycled, but in a severe cold environment, a large amount of water bodies rich in the water absorption equipment are condensed into ice at gradually reduced temperature, so that the whole water absorption equipment is blocked, the fan 140 cannot perform air suction action on the inside of the tower body 110, and the later use of the closed cooling tower with the anti-freezing structure is seriously affected.

According to some embodiments of the present disclosure, as shown in fig. 5 to 9, a water absorption assembly 300 is disposed between the spray tool 130 and the fan 140, the water absorption assembly 300 includes a water absorption compartment 310 and a plurality of expansion members 320, the water absorption compartment 310 is fixedly connected to an inner wall of the tower body 110, the plurality of expansion members 320 are disposed in a plurality, fixed ends of the plurality of expansion members 320 are fixedly connected to an inner top portion of the tower body 110, and an output end of the expansion member 320 is fixedly connected to an upper surface of the water absorption compartment 310.

The bottom of the water absorption cabin 310 is in a hollow design, so that water vapor and condensed water can conveniently pass through the water absorption cabin, the inner bottom of the water absorption cabin 310 is sequentially provided with a water absorption piece 311 and a screen plate 312, the water absorption piece 311 is arranged between the inner bottom of the water absorption cabin 310 and the screen plate 312, and the screen plate 312 is fixedly connected with the output end of the telescopic piece 320.

Specifically, the water absorbing member 311 may be a water absorbing sponge or other relevant material.

Furthermore, a T-shaped block 313 is fixedly connected to the peripheral side of the mesh plate 312, and the T-shaped block 313 is limited to slide on the inner wall of the water absorption chamber 310, so that it can be understood that, under the telescopic action of the telescopic member 320, the mesh plate 312 completes the vertical sliding in the water absorption chamber 310 through the T-shaped block 313, and then completes the extrusion of the water absorption member 311, so that the condensed water formed in the water absorption member 311 is extruded out and drops to the bottom in the tower body 110.

The extensible member 320 may be a conventional device such as a hydraulic cylinder having an extensible function.

It can be understood that, in this closed cooling tower with antifreeze structure uses, start extensible member 320, drive otter board 312 and pass through T-shaped block 313 and accomplish the slip of direction from top to bottom in water absorption cabin 310, carry out repeated extrusion action to the water absorption piece 311 of its bottom, make the comdenstion water that forms in it extruded, the bottom in dripping to the body of the tower 110, the minimum water that contains in the water absorption piece 311 has been guaranteed to a certain extent, avoided the too much inside shutoff that forms of water content messenger water absorption piece 311, cause the air current can' T wash water absorption piece 311, cause this cooling tower exhaust failure, also avoid in cold environment as far as simultaneously, after stopping using this cooling tower, because of being rich in the water body and condensing into ice in water absorption piece 311, influence the later stage of closed cooling tower and use then.

In the related art, after the closed cooling tower with the anti-freezing structure is stopped, the heat exchanger 120, the water collecting chamber and the water absorbing piece 311 in the closed cooling tower are drained, and condensation of residual water into ice can be reduced to a certain extent, so that influence on the use of the closed cooling tower is further caused, however, residual water is more or less generated on the outer wall of the red copper pipe of the heat exchanger 120 and inside the spiral nozzle 133 and the water absorbing piece 311 on the spraying tool 130, and the residual water can gradually form an ice layer inside the tower body 110 along with the reduction of the temperature, if the ice layer is not pretreated, the closed cooling tower with the anti-freezing structure is directly opened, so that the temperature of the heat exchanger 120 rises suddenly, the service life of the heat exchanger 120 is damaged, and negative pressure is formed in the tower body 110 due to the operation of the fan 140, and the water absorbing piece 311 is easily damaged to a certain extent.

According to some embodiments of the present disclosure, as shown in fig. 10-12, a preheating assembly 400 is disposed on the tower body 110, the preheating assembly 400 includes an air pump 410 and an exhaust pipe 420, the air pump 410 is fixedly connected to the tower body 110, one end of the exhaust pipe 420 is fixedly connected to an output end of the air pump 410, and the other end of the exhaust pipe 420 is disposed between the heat exchanger 120 and the filter element 230.

A plurality of exhaust nozzles 430 are fixedly coupled to an end of the exhaust pipe 420 disposed in the tower body 110, and the plurality of exhaust nozzles 430 are disposed on a side of the exhaust pipe 420 facing the heat exchanger 120.

Therefore, it can be understood that, before the closed cooling tower with the anti-freezing structure is used, a heat source (hot air flow) can be externally connected with the air pump 410, the hot air flow is conveyed to the exhaust nozzles 430 through the exhaust pipe 420, then the exhaust nozzles 430 blow the hot air flow to the heat exchanger 120 and the inside of the tower body 110, an ice layer formed by residual water in the tower body 110 is melted, and the red copper pipe of the heat exchanger 120 is preheated to a certain degree, so that the heat exchanger 120 is prevented from being suddenly heated from a low-temperature state due to the fact that liquid with higher temperature needs to flow in the normal use process, the red copper pipe on the heat exchanger 120 is prevented from being damaged, and after the ice layer is melted, the water absorbing piece 311 is enabled to form a ventilation state, and normal exhaust of the fan 140 is facilitated.

It should be noted that the specific model specifications of the heat exchanger 120, the spray pump 131, the spiral nozzle 133, the fan 140, the tension spring 217, the air pump 410, and the exhaust nozzle 430 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art in the field, so detailed description is omitted.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a closed cooling tower with anti-freezing structure, contains cooling tower subassembly (100), cooling tower subassembly (100) contain body of the tower (110), heat exchanger (120), spray frock (130) and fan (140), heat exchanger (120) set up in body of the tower (110), spray frock (130) set up in heat exchanger (120) top side, fan (140) communicate in body of the tower (110) top, wherein, be provided with temperature sensor on body of the tower (110), temperature sensor is used for control the start-stop of spraying frock (130), the bottom is provided with the sump tank in body of the tower (110), the sump tank with the input intercommunication of spraying frock (130), its characterized in that:

the anti-freezing component (200) is arranged on the tower body (110);

the anti-freezing assembly (200) comprises a first closing piece (210), a second closing piece (220) and a filter piece (230), wherein the first closing piece (210) is symmetrically arranged on the outer wall of the tower body (110), the second closing piece (220) is symmetrically arranged on the inner wall of the tower body (110), the second closing piece (220) is matched with the first closing piece (210), and the filter piece (230) is arranged at the inner bottom of the tower body (110).

2. The closed cooling tower with an antifreeze structure as set forth in claim 1, wherein: air inlet windows (111) are symmetrically arranged on the side wall of the tower body (110), and a filter screen (112) is inserted on the air inlet windows (111) in a sliding mode.

3. The closed cooling tower with an antifreeze structure as set forth in claim 1, wherein: a water inlet (121) of the heat exchanger (120) is arranged above the water outlet (122), and the heat exchanger (120) is fixedly connected to the inner wall of the tower body (110) through a fixing frame (123).

4. The closed cooling tower with an antifreeze structure as claimed in claim 1, wherein: the heat exchanger (120) adopts a copper tube, and the section of the copper tube in the height direction of the heat exchanger (120) is in a regular downward inclined design.

5. The closed cooling tower with an antifreeze structure as set forth in claim 1, wherein: spray frock (130) and contain spray pump (131), shower (132) and spiral nozzle (133), the end of intaking of spray pump (131) is fixed communicate in the sump tank, the play water end of spray pump (131) is fixed the intercommunication have shower (132), shower (132) rigid coupling in heat exchanger (120) top side, spiral nozzle (133) set up to a plurality ofly, a plurality of spiral nozzle (133) rigid coupling in shower (132) orientation one side of heat exchanger (120).

6. The closed cooling tower with an antifreeze structure as set forth in claim 2, wherein: the first closing part (210) comprises a cover plate (211), a sliding groove (212), a limiting hole (213), a baffle plate (214), a handle (215), a limiting bolt (216) and a tension spring (217), the cover plate (211) is fixedly connected to the outer wall of the tower body (110), the sliding groove (212) is symmetrically arranged, the sliding groove (212) is arranged on the cover plate (211), the limiting hole (213) is arranged on the cover plate (211), the baffle plate (214) is inserted into the cover plate (211) in a sliding mode, the handle (215) is fixedly connected to the baffle plate (214), the handle (215) is in sliding fit with the sliding groove (212), the limiting bolt (216) is inserted into the handle (215), the limiting bolt (216) is matched with the limiting hole (213), and two ends of the tension spring (217) are fixedly connected to the handle (215) and the limiting bolt (216) respectively.

7. The closed cooling tower with an antifreeze structure as set forth in claim 6, wherein: the second closing part (220) comprises a portal frame (221), a T-shaped strip (222) and a leaf plate (223), the portal frame (221) is arranged on the inner wall of the tower body (110), the T-shaped strip (222) is fixedly connected to the portal frame (221), the T-shaped strip (222) is inserted into the inner wall of the tower body (110) in a sliding mode, and the leaf plate (223) is rotatably connected to the portal frame (221).

8. The closed cooling tower with an antifreeze structure as set forth in claim 7, wherein: the hinge plates (223) are uniformly arranged along the height direction of the portal frame (221), and the hinge plates (223) are mutually overlapped.

9. The closed cooling tower with an antifreeze structure as set forth in claim 1, wherein: filter piece (230) contain sump cover (231), filter plate (232) and filter box (233), sump cover (231) rigid coupling in body of the tower (110) inner wall, filter plate (232) rigid coupling in sump cover (231) bottom, filter box (233) seal the slip set up in body of the tower (110) are close to one side of filter plate (232), just filter box (233) with form the intercommunication between filter plate (232).

10. The closed cooling tower with an antifreeze structure as claimed in claim 9, wherein: the water collecting hatch cover (231) is obliquely arranged, and one side, close to the filter box (233), of the water collecting hatch cover (231) is lower than the other side.