阅读说明：本技术 一种低温冷却液循环泵 (Low-temperature cooling liquid circulating pump ) 是由 贺盛春 谢应波 张庆 许峰源 于 2020-12-07 设计创作，主要内容包括：本申请涉及一种低温冷却液循环泵,其包括防护箱,防护箱的一侧固设有压缩机,防护箱内垂直于压缩机的一端固设有冷凝器,压缩机和冷凝器之间固设有将压缩机压缩的制冷剂蒸气输送至冷凝器内导流管,冷凝器包括水箱,所述进水管上设置有散热机构；所述散热机构包括固设于防护箱内的四个散热组件,进水管内的水经四个散热组件依次散热后回流至冷凝器中；所述散热组件包括固设于防护箱内壁的回流槽,相邻的散热组件的回流槽之间连通,防护箱内设置有吹风机,回流槽内竖向转动连接有传动轴,传动轴沿其周向均匀固设有多个扇叶,回流槽靠近吹风机的一侧固设有弧形的散热板,散热板的外侧壁固设有多个导热板。本申请具有对冷却水制冷效果制冷更好的效果。(The application relates to a low-temperature cooling liquid circulating pump, which comprises a protective box, wherein a compressor is fixedly arranged on one side of the protective box, a condenser is fixedly arranged at one end, perpendicular to the compressor, in the protective box, a guide pipe for conveying refrigerant vapor compressed by the compressor into the condenser is fixedly arranged between the compressor and the condenser, the condenser comprises a water tank, and a heat dissipation mechanism is arranged on a water inlet pipe; the heat dissipation mechanism comprises four heat dissipation components fixedly arranged in the protective box, and water in the water inlet pipe flows back to the condenser after being sequentially dissipated by the four heat dissipation components; the radiator unit is provided with the hair-dryer including setting firmly in the backward flow groove of protective housing inner wall, intercommunication between adjacent radiator unit's the backward flow groove, in the protective housing, vertical rotation is connected with the transmission shaft in the backward flow groove, and the transmission shaft has evenly set firmly a plurality of flabellums along its circumference, and one side that the backward flow groove is close to the hair-dryer has set firmly curved heating panel, and the lateral wall of heating panel has set firmly a plurality of heat-conducting plates. This application has the better effect of cooling to the cooling water refrigeration effect refrigeration.)

1. The utility model provides a low-temperature cooling liquid circulating pump, including protective housing (1), one side of protective housing (1) has set firmly compressor (2), the one end of perpendicular to compressor (2) has set firmly condenser (3) in protective housing (1), honeycomb duct (21) in refrigerant vapor transport to condenser (3) with compressor (2) compression set firmly between compressor (2) and condenser (3), condenser (3) include water tank (31), the bottom of keeping away from compressor (2) one side in water tank (31) has set firmly water transmission to user's outlet pipe (32) after water tank (31) internal cooling, the other end of water tank (31) has set firmly one and will flow back to water inlet tube (33) in water tank (31) after the user cools off, its characterized in that:

the water inlet pipe (33) is provided with a heat dissipation mechanism (4);

the heat dissipation mechanism (4) comprises four heat dissipation components (44) fixedly arranged in the protective box (1), and water in the water inlet pipe (33) flows back to the condenser (3) after being sequentially dissipated heat by the four heat dissipation components (44); radiating component (44) is including setting firmly reflow channel (441) in protective housing (1) inner wall, intercommunication between reflow channel (441) of adjacent radiating component (44), be provided with hair-dryer (43) in protective housing (1), vertical rotation is connected with transmission shaft (442) in reflow channel (441), transmission shaft (442) have evenly set firmly a plurality of flabellums (443) along its circumference, one side that reflow channel (441) are close to hair-dryer (43) has set firmly curved heating panel (444), the lateral wall of heating panel (444) has set firmly a plurality of heat-conducting plates (445).

2. The cryogenic coolant circulation pump of claim 1, wherein: a guide plate (46) is fixedly arranged on one side, far away from the heat conducting plate (445), in the reflux groove (441), and arc-shaped grooves are formed in two sides in the guide plate (46).

3. The cryogenic coolant circulation pump of claim 1, wherein: adjacent cooling tube (446) that many axial levels set up set firmly between backward flow groove (441), cooling tube (446) along the vertical align to grid of lateral wall of backward flow groove (441), and thermovent (11) have been seted up to protective housing (1) corresponding position of cooling tube (446).

4. The cryogenic coolant circulation pump of claim 1, wherein: the top of backward flow groove (441) is extended and positioning disc (451) is fixed to the one end of transmission shaft (442), positioning block (452) have been set firmly at the top of backward flow groove (441), threaded rod (453) have been worn to penetrate in positioning block (452), the one end that threaded rod (453) are close to positioning disc (451) has set firmly limiting plate (455) of butt in positioning disc (451) lateral wall, threaded rod (453) overcoat is equipped with spring (454), one side threaded connection that limiting plate (455) were kept away from to threaded rod (453) are located positioning block (452) has the nut.

5. The cryogenic coolant circulation pump of claim 1, wherein: the top of water tank (31) sets firmly first trunk line (34) with honeycomb duct (21) intercommunication, and the bottom of water tank (31) sets firmly second trunk line (35) that axial level set up, and first trunk line (34) and back flow (22) intercommunication have set firmly the small transfer line (36) of many axial vertical settings between first trunk line (34) and second trunk line (35).

6. The cryogenic coolant circulation pump of claim 1, wherein: a heat insulation box (23) is fixedly arranged between the compressor (2) and the water tank (31), the guide pipe (21) penetrates through the heat insulation box (23), the guide pipe (21) is arranged in the heat insulation box (23) in a snake shape, the outer side wall of the heat insulation box (23) is fixedly provided with a water guide pipe (231) and a water discharge pipe (232), the water guide pipe (231) and the water discharge pipe (232) are respectively fixedly provided with a switch valve (233), and the water guide pipe (231) is used for introducing cold water into the heat insulation box (23).

7. The cryogenic coolant circulation pump of claim 1, wherein: the utility model discloses a cooling device, including compressor (2), stand-by pipeline (24) have set firmly on compressor (2), cooling box (241) have set firmly between compressor (2) and honeycomb duct (21), stand-by pipeline (24) flow back to compressor (2) again after passing from cooling box (241), the outside of protective housing (1) has set firmly one storage water tank (25), communicate in storage water tank (25) and cooling box (241), the one end and inlet tube (33) intercommunication of storage water tank (25), water in inlet tube (33) can enter into in storage water tank (25), storage water tank (25) set firmly moisturizing pipe (254) with outlet pipe (32) intercommunication.

8. The cryogenic coolant circulation pump of claim 7, wherein: and a second water pump (255) is fixedly arranged on the water supplementing pipe (254), a temperature sensor (321) and an electromagnetic valve (322) are fixedly arranged on the water outlet pipe (32), the temperature sensor (321) is used for detecting the temperature of water flow flowing out of the water outlet pipe (32), when the temperature sensor (321) detects that the temperature of the water outlet pipe (32) is higher than a required temperature value, the electromagnetic valve (322) is controlled to be closed, and the second water pump (255) is opened.

Technical Field

The application relates to the field of circulating pumps, in particular to a low-temperature cooling liquid circulating pump.

Background

The low-temperature cooling liquid circulating pump is low-temperature liquid circulating equipment adopting a mechanical form for refrigeration, and has the functions of providing low-temperature liquid and low-temperature water bath. And the multifunctional chemical reaction operation and the medicine storage under low temperature are carried out by combining instruments such as a rotary evaporator, a vacuum freeze drying box, a circulating water type vacuum pump, a magnetic stirrer and the like.

The low-temperature cooling liquid circulating pump includes compressor and condenser, the compressor carries refrigerated steam to the condenser, carry out the heat exchange with water in the condenser, cold steam cools off water, the water after the cooling is taken out on the user needs refrigerated equipment, the recirculated cooling in the condenser flows back after the use, however, the cooling water is to needs refrigerated equipment cooling back, take away the heat and lead to self temperature rising, when flow back again and carry out cooling in the condenser, because the cold steam of compressor output can refrigerated heat unchangeable, thereby lead to the circulating water refrigeration effect in the condenser pipe to reduce.

Disclosure of Invention

In order to refrigerate better to the cooling water refrigeration effect, this application provides a cryogenic cooling liquid circulating pump.

The application provides a cryogenic cooling liquid circulating pump adopts following technical scheme:

a low-temperature cooling liquid circulating pump comprises a protective box, wherein a compressor is fixedly arranged on one side of the protective box, a condenser is fixedly arranged at one end, perpendicular to the compressor, in the protective box, a guide pipe for conveying refrigerant steam compressed by the compressor into the condenser is fixedly arranged between the compressor and the condenser, the condenser comprises a water tank, a water outlet pipe for conveying water cooled in the water tank to a user is fixedly arranged at the bottom of one side, away from the compressor, of the water tank, a water inlet pipe for returning water cooled by the user into the water tank is fixedly arranged at the other end of the water tank, and a heat dissipation mechanism is arranged on the water inlet; the heat dissipation mechanism comprises four heat dissipation components fixedly arranged in the protective box, and water in the water inlet pipe flows back to the condenser after being sequentially dissipated by the four heat dissipation components; the radiator unit is provided with the hair-dryer including setting firmly in the backward flow groove of protective housing inner wall, intercommunication between adjacent radiator unit's the backward flow groove, in the protective housing, vertical rotation is connected with the transmission shaft in the backward flow groove, and the transmission shaft has evenly set firmly a plurality of flabellums along its circumference, and one side that the backward flow groove is close to the hair-dryer has set firmly curved heating panel, and the lateral wall of heating panel has set firmly a plurality of heat-conducting plates.

Through adopting above-mentioned technical scheme, the cooling water in the inlet pipe is behind the user, the cooling water is to needs refrigerated equipment cooling back, take away the heat and lead to self temperature rising, after water flows into the backward flow inslot, the flabellum rotates under the effect of rivers, the area of contact of increase water and heating panel, the heating panel is derived the heat of water, the hair-dryer can accelerate the flow of air, thereby take away the heat on the heating panel, the heat on the heating panel is derived to the heat-conducting plate, and then can cool down water, make the temperature of backward flow to the water tank in lower, ensure that the water that the condenser flows out meets the demands, cooling water refrigeration effect refrigeration is better.

Optionally, a guide plate is fixedly arranged on one side, far away from the heat conducting plate, in the reflux groove, and arc-shaped grooves are formed in two sides in the guide plate.

Through adopting above-mentioned technical scheme, the guide plate makes water flow to the direction of flabellum, and then promotes the flabellum and rotates, makes water flow towards the direction of heating panel, increases the area of contact between water and the heating panel.

Optionally, adjacent the cooling tube that many axial levels set up has set firmly between the backward flow groove, and the vertical align to grid of lateral wall along the backward flow groove is managed to the cooling tube, and the thermovent has been seted up to the position that the protective housing corresponds the cooling tube.

Through adopting above-mentioned technical scheme, water flows through the backward flow groove in proper order through the cooling tube, and the circulation of air is taken away with the heat on the cooling tube to the hair-dryer acceleration, and then can play radiating effect to water.

Optionally, the top of backward flow groove is extended and is fixed with the positioning disk to the one end of transmission shaft, and the top of backward flow groove has set firmly the locating piece, and it has penetrated the screw rod to wear in the positioning block, and the one end that the screw rod is close to the positioning disk has set firmly the limiting plate of butt in the positioning disk lateral wall, and the screw rod overcoat is equipped with the spring, and one side threaded connection that the limiting plate was kept away from to the screw rod is located the locating piece.

Through adopting above-mentioned technical scheme, adjusting nut, can adjusting screw's position, the elasticity of limiting plate butt on the positioning disk of adjusting screw tip has the friction between limiting plate and the positioning disk, can adjust the slew velocity of transmission shaft, and then can adjust the velocity of flow of rivers, can be more thorough to the water heat dissipation.

Optionally, the top of water tank sets firmly the first trunk line with the honeycomb duct intercommunication, and the bottom of water tank sets firmly the second trunk line that the axial level set up, and first trunk line and back flow intercommunication have set firmly the small transfer line of the vertical setting of many axial between first trunk line and the second trunk line.

Through adopting above-mentioned technical scheme, the honeycomb duct carries refrigerant steam to the first trunk line in to in flowing the second trunk line along the small transfer line, the small transfer line can increase the area of contact of water and refrigerant steam, and is better to the water refrigeration effect in the water tank.

Optionally, a heat insulation box is fixedly arranged between the compressor and the water tank, the flow guide pipe penetrates through the heat insulation box, the flow guide pipe is arranged in the heat insulation box in a snake shape, a water guide pipe and a water discharge pipe are fixedly arranged on the outer side wall of the heat insulation box, switch valves are fixedly arranged on the water guide pipe and the water discharge pipe, and the water guide pipe is used for introducing cold water into the heat insulation box.

By adopting the technical scheme, the heat insulation box can prevent the temperature of the refrigerant in the guide pipe from being changed by the outside, and in hot summer, cold water can be introduced into the heat insulation box through the guide pipe, so that the energy loss of the refrigerant in the guide pipe is prevented, and the refrigeration effect of the refrigerant is not influenced.

Optionally, a spare pipeline is fixedly arranged on the compressor, a cooling box is fixedly arranged between the compressor and the flow guide pipe, the spare pipeline passes through the cooling box and then flows back to the compressor, a water storage tank is fixedly arranged on the outer side of the protection box, the water storage tank is communicated with the cooling box, one end of the water storage tank is communicated with the water inlet pipe, water in the water inlet pipe can enter the water storage tank, and a water replenishing pipe communicated with the water outlet pipe is fixedly arranged on the water storage tank.

Through adopting above-mentioned technical scheme, the cooling water in the inlet pipe can enter into the storage water tank, and storage water tank and cooling tank intercommunication make hydroenergy in the storage water tank enough save in the storage water tank after the cooling of cooling tank, and when the temperature of water in the condenser was higher, the cooling water in the storage water tank can enter into in the outlet pipe, supplyes the water in the outlet pipe.

Optionally, a second water pump is fixedly arranged on the water replenishing pipe, a temperature sensor and an electromagnetic valve are fixedly arranged on the water outlet pipe, the temperature sensor is used for detecting the temperature of water flow flowing out of the water outlet pipe, when the temperature sensor detects that the temperature of the water outlet pipe is higher than a required temperature value, the electromagnetic valve is controlled to be closed, and the second water pump is opened.

By adopting the technical scheme, water in the water inlet pipe enters the water storage tank, the water in the water storage tank enters the cooling tank for cooling, the cooled water flows back to the water storage tank through the circulating pipe for storage and standby, and when the water temperature in the water outlet pipe does not meet the preset requirement, the water pump II is started, so that the water in the water storage tank flows into the water outlet pipe for supply, and cooling water with the required temperature can be timely provided for a user.

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

1. the backflow grooves are formed in the inner wall of the protective box, the backflow grooves of adjacent heat dissipation assemblies are communicated, the blower is arranged in the protective box, a transmission shaft is vertically and rotatably connected in the backflow grooves, a plurality of fan blades are uniformly and fixedly arranged on the transmission shaft along the circumferential direction of the transmission shaft, an arc-shaped heat dissipation plate is fixedly arranged on one side, close to the blower, of the backflow groove, a plurality of heat conduction plates are fixedly arranged on the outer side wall of each heat dissipation plate, after water flows into the backflow grooves, the fan blades rotate under the action of water flow, the contact area of the water and the heat dissipation plates is increased, the heat dissipation plates conduct out the heat of the water, the blower can accelerate the flow of the air, so that the heat on the heat dissipation plates is taken away, the heat conduction plates conduct the heat on the heat dissipation plates;

2. the heat insulation box is fixedly arranged between the compressor and the water tank, the flow guide pipe penetrates through the heat insulation box, the flow guide pipe is arranged in the heat insulation box in a snake shape, the outer side wall of the heat insulation box is fixedly provided with a water guide pipe and a water discharge pipe, the water guide pipe and the water discharge pipe are respectively and fixedly provided with the switch valve, the water guide pipe is used for introducing cold water into the heat insulation box, the heat insulation box can prevent the temperature of a refrigerant in the flow guide pipe from being changed from the outside, in hot summer, cold water can be introduced into the heat insulation box through the water guide pipe, the energy dissipation of the refrigerant in the flow guide pipe is prevented, and.

Drawings

Fig. 1 is an isometric view of an embodiment.

Fig. 2 is a sectional view of the embodiment.

Fig. 3 is a schematic view of the structure of the compressor and the condenser.

Fig. 4 is a sectional view of the compressor and the condenser.

FIG. 5 is a cross-sectional view of the standby pipe shown in greater detail.

Fig. 6 is a schematic structural view of the heat dissipation mechanism and the condenser.

Fig. 7 is a sectional view of the heat dissipation mechanism.

Fig. 8 is an enlarged view of a portion a of fig. 7.

Description of reference numerals: 1. a protective box; 11. a heat dissipation port; 2. a compressor; 21. a flow guide pipe; 22. a return pipe; 23. a heat insulation box; 231. a water conduit; 232. a drain pipe; 233. an on-off valve; 24. a standby pipeline; 241. a cooling box; 25. a water storage tank; 251. a connecting pipe; 252. a first water pump; 253. a circulation pipe; 254. a water replenishing pipe; 255. a second water pump; 3. a condenser; 31. a water tank; 32. a water outlet pipe; 321. a temperature sensor; 322. an electromagnetic valve; 33. a water inlet pipe; 34. a first main pipe; 35. a second main pipe; 36. branch pipelines; 4. a heat dissipation mechanism; 41. a partition plate; 42. a heat sink; 43. a fan; 44. a heat dissipating component; 441. a reflux tank; 442. a drive shaft; 443. a fan blade; 444. a heat dissipation plate; 445. a heat conducting plate; 446. a radiating pipe; 45. an adjustment assembly; 451. positioning a plate; 452. positioning blocks; 453. a screw; 454. a spring; 455. a limiting plate; 46. a baffle.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a low-temperature cooling liquid circulating pump. Referring to fig. 1 and 2, a low-temperature coolant circulating pump includes a protective box 1, a compressor 2 is fixedly disposed on one side of the protective box 1, a condenser 3 is fixedly disposed at one end of the protective box 1 perpendicular to the compressor 2, a flow guide pipe 21 is fixedly disposed between the compressor 2 and the condenser 3, and the flow guide pipe 21 is used for conveying refrigerant vapor compressed by the compressor 2 to the condenser 3.

Referring to fig. 3 and 4, a return pipe 22 is fixedly arranged between the compressor 2 and the condenser 3, and the return pipe 22 is used for returning refrigerant vapor or refrigerant liquid cooled by water in the condenser 3 to the compressor 2 for circulation. The condenser 3 comprises a water tank 31, a water outlet pipe 32 is fixedly arranged at the bottom of one side of the water tank 31, which is far away from the compressor 2, the water outlet pipe 32 is used for transmitting the water cooled in the water tank 31 to a user, a water inlet pipe 33 is fixedly arranged at the other end of the water tank 31, and the water inlet pipe 33 is used for returning the water cooled by the user to the water tank 31; a first main pipe 34 which is axially and horizontally arranged is fixedly arranged at the top of the water tank 31, the first main pipe 34 is communicated with the flow guide pipe 21, a second main pipe 35 which is axially and horizontally arranged is fixedly arranged at the bottom of the water tank 31, the first main pipe 34 is communicated with the return pipe 22, and a plurality of branch pipes 36 which are axially and vertically arranged are fixedly arranged between the first main pipe 34 and the second main pipe 35; the honeycomb duct 21 conveys the refrigerant steam to the first main pipeline 34, and flows to the second main pipeline 35 along the branch pipeline 36, the branch pipeline 36 can increase the contact area of water and the refrigerant steam, the refrigeration effect on the water in the water tank 31 is better, and the second branch pipeline 36 is used for returning the refrigerant to the compressor 2.

A heat insulation box 23 is fixedly arranged between the compressor 2 and the water tank 31, the guide pipe 21 penetrates through the heat insulation box 23, a water guide pipe 231 and a water discharge pipe 232 are fixedly arranged on the outer side wall of the heat insulation box 23, switch valves 233 are fixedly arranged on the water guide pipe 231 and the water discharge pipe 232, and the guide pipe 21 is arranged in the heat insulation box 23 in a snake shape; the heat insulation box 23 can prevent the temperature of the refrigerant in the draft tube 21 from being changed by the outside, and in hot summer, cold water can be introduced into the heat insulation box 23 through the water guide tube 231, so that the energy loss of the refrigerant in the draft tube 21 is prevented, and the refrigeration effect of the refrigerant is not influenced.

Referring to fig. 4 and 5, a spare pipeline 24 is fixedly arranged on the compressor 2, a cooling box 241 is fixedly arranged between the compressor 2 and the draft tube 21, the spare pipeline 24 penetrates through the cooling box 241 and is arranged in a serpentine shape in the cooling box 241, and the spare pipeline 24 flows back into the compressor 2 after penetrating through the cooling box 241; a water storage tank 25 is fixedly arranged on the outer side of the protective box 1, one end of the water storage tank 25 is communicated with a water inlet pipe 33, so that water in the water inlet pipe 33 can enter the water storage tank 25, a connecting pipe 251 is fixedly arranged at one end of the water storage tank 25, which is close to the water inlet pipe 33, the connecting pipe 251 is communicated with the interior of the cooling box 241, a first water pump 252 is fixedly arranged on the connecting pipe 251, and the first water pump 252 leads the water in the water storage tank 25 into the cooling box 241 through the connecting pipe 251; a circulating pipe 253 is fixedly arranged at one end of the cooling tank 241 far away from the connecting pipe 251, and the circulating pipe 253 is communicated with the water storage tank 25; a water replenishing pipe 254 is fixedly arranged at one end of the water storage tank 25 on the circulating pipe 253, which is close to the water outlet pipe 32, the water replenishing pipe 254 is communicated with the water outlet pipe 32, a second water pump 255 is fixedly arranged on the water replenishing pipe 254, a temperature sensor 321 and an electromagnetic valve 322 are fixedly arranged on the water outlet pipe 32, the temperature sensor 321 is used for detecting the temperature of water flowing out of the water pipe 32, when the temperature of the water outlet pipe 32 is detected to be higher than a required temperature value, the electromagnetic valve 322 is controlled to be closed, and the second water pump 255 is controlled to be opened, so that water in the water storage tank 25 flows into the water.

The water in the water inlet pipe 33 enters the water storage tank 25, the water in the water storage tank 25 enters the cooling tank 241 for cooling, the cooled water flows back to the water storage tank 25 through the circulating pipe 253 to be stored for later use, and when the water temperature in the water outlet pipe 32 does not meet the preset requirement, the water pump II 255 is turned on, so that the water in the water storage tank 25 flows into the water outlet pipe 32 for supply, and the cooling water with the required temperature can be provided for a user in time.

Referring to fig. 6 and 7, since the water in the water inlet pipe 33 is heat-exchanged with the user, the temperature of the water rises, and in order to facilitate the cooling in the well water tank 31, the temperature of the cooling water can reach the requirement, the water inlet pipe 33 is provided with a heat dissipation mechanism 4, and the heat dissipation mechanism 4 is used for dissipating the heat of the returned water. The heat dissipation mechanism 4 comprises a partition plate 41 fixedly arranged in the protection box 1, a heat dissipation groove 42 is formed between the partition plate 41 and the inner wall of the protection box 1, four heat dissipation assemblies 44 are uniformly and fixedly arranged in the heat dissipation groove 42, and water in the water inlet pipe 33 flows through the four heat dissipation assemblies 44 in sequence, so that the water in the water inlet pipe 33 flows back to the condenser 3 after being dissipated heat for four times.

The heat dissipation assembly 44 comprises reflux grooves 441 fixedly arranged on the inner wall of the protective box 1, a plurality of heat dissipation pipes 446 are fixedly arranged between the adjacent reflux grooves 441, the adjacent reflux grooves 441 are communicated through the heat dissipation pipes 446, the heat dissipation pipes 446 are axially and horizontally arranged, the heat dissipation pipes 446 are vertically and uniformly arranged along the side wall of the reflux grooves 441, one side of the partition plate 41 close to the heat dissipation pipes 446 is fixedly provided with a blower 43, and the position of the protective box 1 corresponding to the heat dissipation pipes 446 is provided with a heat dissipation opening 11; the water flows through the backflow groove 441 in sequence through the radiating pipe 446, the air blower 43 accelerates the circulation of air, takes away heat on the radiating pipe 446, and then the radiating effect on the water can be achieved.

A transmission shaft 442 is vertically arranged in the backflow groove 441, the transmission shaft 442 is rotatably connected in the backflow groove 441, a plurality of fan blades 443 are uniformly and fixedly arranged on the transmission shaft 442 along the circumferential direction of the transmission shaft, the fan blades 443 are axially arranged on the transmission shaft 442, an arc-shaped heat dissipation plate 444 is fixedly arranged on one side, close to the blower 43, of the backflow groove 441, the fan blades 443 rotate under the action of water flow, the contact area between the water and the heat dissipation plate 444 is increased, the heat dissipation plate 444 conducts the heat of the water, the water can be cooled, a plurality of heat conduction plates 445 are fixedly arranged on the outer side wall of the heat dissipation plate 444; a guide plate 46 is fixedly arranged on one side of the reflux groove 441 far away from the heat conducting plate 445, arc-shaped grooves are formed in two sides of the interior of the guide plate 46, and the guide plate 46 enables water to flow towards the direction of the fan blade 443, so that the fan blade 443 is pushed to rotate, and the water flows towards the direction of the heat radiating plate 444.

Referring to fig. 6 and 8, an adjusting assembly 45 is fixedly arranged at the top of the backflow groove 441, the adjusting assembly 45 includes a positioning plate 451, the backflow groove 441 extends from one end of the transmission shaft 442, the positioning plate 451 is fixedly connected to an end portion of the transmission shaft 442, a positioning block 452 is fixedly arranged at the top of the backflow groove 441, a screw 453 penetrates through the positioning block 452, a limiting plate 455 is fixedly arranged at one end of the screw 453 close to the positioning plate 451, the limiting plate 455 abuts against an outer side wall of the positioning plate 451, a spring 454 is sleeved outside the screw 453, one end of the spring 454 is fixed to the limiting plate 455, the other end of the spring is fixed to the positioning block 452, and a nut is connected to one side. Adjusting nut, can adjust screw 453's position, the elasticity of limiting plate 455 butt on positioning disk 451 of adjusting screw 453 tip has the friction between limiting plate 455 and positioning disk 451, can adjust the slew velocity of transmission shaft 442, and then can adjust the velocity of flow of rivers, can be more thorough to the water heat dissipation.

The implementation principle of the low-temperature cooling liquid circulating pump in the embodiment of the application is as follows: the compressor 2 carries the compressed refrigerant steam to the water tank 31, cools the water in the water tank 31, the water in the water tank 31 flows back to the water tank 31 through the inlet tube 33 after flowing into the user to use, the water in the inlet tube 33 flows through the return channel 441 in sequence, the blades 443 in the return channel 441 enable the water to abut against the heat dissipation plate 444, the heat dissipation plate 444 can absorb the heat in the water, the fan 43 blows to take away the heat on the heat dissipation plate 444 and the heat dissipation pipe 446, and the temperature reduction of the water in the inlet tube 33 is accelerated.

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.