A cooling pipe system

Abstract

The invention discloses a cold pipe system, comprising an evaporating pipe, a water inlet pipe and a water removal assembly, wherein the evaporating pipe is arranged in an inclined manner, and the input end of the evaporating pipe is higher than the output end of the evaporating pipe; the output end of the water inlet pipe is connected to the input end of the evaporating pipe, and the water inlet pipe is connected to a three-way valve, and the three-way valve is used to input a small molecular weight gas into the evaporating pipe; the water removal assembly is located below the evaporating pipe, and the water removal assembly has a water sealing cavity, and the output end of the evaporating pipe is connected to the water sealing cavity through a recovery pipe, and the water sealing cavity is connected to a first pipeline, which extends upward and communicates with the input end of the evaporating pipe, and the lower end of the first pipeline is connected to a molecular sieve, and the molecular sieve is used to limit the passage of water vapor, and the water removal assembly is used to absorb water vapor. A cold pipe system of the invention realizes refrigeration by absorbing heat and evaporating water, and has low cost, and its refrigeration temperature is lower than the air temperature and the water temperature, and has a good refrigeration effect.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration equipment, and in particular to a cold pipe system. Background Art

[0002] Existing artificial refrigeration technologies, whether steam compression refrigeration, steam absorption refrigeration, steam jet refrigeration, adsorption refrigeration, thermoelectric refrigeration, magnetic refrigeration, and acoustic refrigeration, all require the use of electricity, heat energy or solar energy to assist the heat absorber, which is costly; as for natural refrigeration technology, such as air cooling or water cooling, it is limited by the natural air temperature or water temperature, and its refrigeration temperature must be higher than the air temperature and water temperature, and the refrigeration effect is limited. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cooling pipe system that uses water to absorb heat and evaporate to achieve refrigeration, has low cost, and its refrigeration temperature is lower than the air temperature and water temperature, and has a good refrigeration effect.

[0004] A cold pipe system according to an embodiment of the present invention comprises: an evaporator tube, the evaporator tube is arranged obliquely, the input end of the evaporator tube is higher than the output end of the evaporator tube; a water inlet pipe, the output end of the water inlet pipe is connected to the input end of the evaporator tube, the water inlet pipe is connected to a three-way valve, the three-way valve is used to input low molecular weight gas into the evaporator tube; a dehydration component is located below the evaporator tube, the dehydration component has a water-sealed cavity, the output end of the evaporator tube is connected to the water-sealed cavity through a recovery pipe, the water-sealed cavity is connected to a first pipe, the first pipe extends upward and communicates with the input end of the evaporator tube, the lower end of the first pipe is connected to a molecular sieve, the molecular sieve is used to limit the passage of water vapor, and the dehydration component is used to absorb water vapor.

[0005] The above technical scheme has at least the following beneficial effects: air in the evaporation tube is extracted from the three-way valve to form a vacuum, and the evaporation tube is filled with a small molecular weight gas. At this time, the partial pressure of water vapor in the evaporation tube is zero, and the water inlet pipe supplies liquid water to the evaporation tube. Since the partial pressure of water vapor in the evaporation tube is zero, the liquid water absorbs heat and evaporates, and heat exchanges with the surrounding air through the evaporation tube to achieve a cooling effect on the surrounding air. Since the evaporation tube is arranged obliquely toward the output end, the liquid water flows toward the output end of the evaporation tube, and continues to absorb heat and evaporate, and continuously cools the surrounding air. After the water evaporates, the volume of the gas in the evaporation tube expands, and the pressure increases, driving the gas to move toward the water sealing chamber through the recovery pipe. After the gas reaches the water sealing chamber, the water vapor gradually tends from an unsaturated state to a supersaturated state, and the excess water vapor is condensed into liquid water in the water sealing chamber. The small molecular weight gas moves upward through the molecular sieve and the first pipeline and enters the evaporation tube to perform the next refrigeration cycle to achieve continuous refrigeration. This method can achieve refrigeration without the assistance of electric energy, solar energy, thermal energy, etc., with low cost, and its refrigeration temperature is lower than the air temperature and water temperature, and the refrigeration effect is good.

[0006] According to some embodiments of the present invention, the angle at which the input end of the evaporation tube is inclined toward the output end of the evaporation tube is 2° to 10°.

[0007] According to some embodiments of the present invention, water-absorbing fibers are arranged in the evaporation tube.

[0008] According to some embodiments of the present invention, the evaporation tube is an S-shaped bent tube.

[0009] According to some embodiments of the present invention, the small molecular weight gas is helium or hydrogen.

[0010] According to some embodiments of the present invention, the evaporation tube is a copper tube, a stainless steel tube or a thin-walled plastic tube.

[0011] According to some embodiments of the present invention, the water removal assembly includes a first water tank, a second water tank and a second pipe, the water-sealed cavity is formed in the first water tank, the second water tank has a first upper opening, the second pipe connects the lower end of the first water tank with the lower end of the second water tank, and the second pipe is connected to a first switch valve.

[0012] According to some embodiments of the present invention, the water removal component includes a third water tank and a fourth water tank, the third water tank is placed in the fourth water tank, the fourth water tank is connected to the outside, the third water tank has a second water-sealed cavity, the lower end of the third water tank is provided with a lower opening, the lower opening connects the third water tank and the fourth water tank, and the lower opening is connected to a second switch valve.

[0013] According to some embodiments of the present invention, a third switch valve is connected to the input end of the water inlet pipe.

[0014] According to some embodiments of the present invention, the water inlet pipe is connected to a U-shaped elbow, and the U-shaped elbow is located at the lower side of the water inlet pipe.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a cooling pipe system in an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a cooling pipe system in another embodiment of the present invention;

[0019] Figure 3 is a cross-sectional view of an evaporation tube in an embodiment of the present invention;

[0020] Figure 4 FIG. 4 is a top view of the evaporation tube in the embodiment of the present invention.

[0021] Reference numerals:

[0022] Evaporation tube 100, recovery tube 110, water absorbing fiber 120;

[0023] Water inlet pipe 200, three-way valve 210, third switch valve 220, U-shaped elbow 230;

[0024] Dewatering assembly 300, first pipe 310, molecular sieve 311, first water tank 320, first water sealed cavity 321, second water tank 330, upper opening 331, second pipe 340, first switch valve 341, third water tank 350, second water sealed cavity 351, lower opening 352, second switch valve 353, fourth water tank 360. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1The embodiment of the present invention provides a cold pipe system, including an evaporator 100, the evaporator 100 is used for evaporation and heat absorption, the evaporator 100 is arranged obliquely, and the input end of the evaporator 100 is higher than the output end of the evaporator 100, so that liquid water can flow to the output end of the evaporator 100 by gravity, one end of the evaporator 100 is connected to a water inlet pipe 200, the water inlet pipe 200 is used to input liquid water into the evaporator 100, the output end of the water inlet pipe 200 extends into the evaporator 100, and a three-way valve 210 is connected to the water inlet pipe 200. The three-way valve 210 is used to extract air in the evaporator 100 to form a vacuum on the one hand, and is used to connect an external small molecular weight gas pipeline on the other hand to input small molecular weight gas, such as helium or hydrogen, into the evaporator 100 to meet the requirement of drifting upward; the cold pipe system also includes a dehydration component 300, the dehydration component 300 is used to absorb water vapor, specifically, the dehydration component 300 00 includes a first water tank 320, a second water tank 330 and a second pipe 340, the second pipe 340 connects the lower end of the first water tank 320 and the lower end of the second water tank 330, the second pipe 340 is connected to a first switch valve 341, a small amount of water is stored in the lower part of the first water tank 320 and the lower part of the second water tank 330, the upper part of the first water tank 320 forms a first water sealing cavity 321, the upper end of the first water sealing cavity 321 is connected to the output end of the evaporation tube 100 through the recovery pipe 110, the upper end of the first water sealing cavity 321 is also connected to the first pipe 310, the first pipe 310 extends upward and communicates with the input end of the evaporation tube 100, the first pipe 310 is connected to the molecular sieve 311, the molecular sieve 311 only allows helium or hydrogen to pass through, and restricts the passage of water vapor, the second water tank 330 is provided with an upper opening 331, the upper opening 331 is connected to the atmosphere, and it is convenient to exchange heat with the atmosphere.

[0030] When the cooling pipe system is working, the air in the evaporation tube 100 is first extracted from the three-way valve 210 to form a vacuum, and the evaporation tube 100 is filled with helium or hydrogen. The pressure of the helium or hydrogen is set to one atmosphere. At this time, the partial pressure of water vapor in the evaporation tube 100 is zero. The water inlet pipe 200 supplies liquid water to the evaporation tube 100. According to the national water supply regulations, the pressure of the liquid water is greater than one atmosphere. Since the partial pressure of water vapor in the evaporation tube 100 is zero, the liquid water absorbs heat and evaporates, and heat is exchanged with the surrounding air through the evaporation tube 100 to achieve a cooling effect on the surrounding air. Since the evaporation tube 100 is arranged at an angle, the liquid water flows to the output end of the evaporation tube 100 and continues to absorb heat and evaporate, and continues to cool the surrounding air. After the water evaporates, the mixed gas of helium and water vapor in the evaporation tube 100 The volume of the gas (or the mixed gas of hydrogen and water vapor) expands, and the pressure increases, driving the mixed gas to move toward the recovery pipe 110 and reach the first water-sealed chamber 321. The water vapor in the mixed gas in the first water-sealed chamber 321 gradually tends from an unsaturated state to an oversaturated state, and the excess water vapor condenses into liquid water in the first water-sealed chamber 321. The liquid water exchanges heat with the outside through the upper opening 331 of the second water tank 330, and evaporates and dissipates heat. The small molecular weight gas in the first water-sealed chamber 321 moves upward through the molecular sieve 311 and the first pipeline 310 and enters the evaporation tube 100 to perform the next refrigeration cycle, thereby realizing continuous refrigeration. This method can realize refrigeration without the assistance of electric energy, solar energy, thermal energy, etc., and has low cost. Moreover, its refrigeration temperature is lower than the air temperature and water temperature, and the refrigeration effect is good.

[0031] In some other embodiments, referring to Figure 2 It can be understood that the dewatering component 300 includes a third water tank 350 and a fourth water tank 360. The third water tank 350 is placed in the fourth water tank 360, and the fourth water tank 360 is connected to the outside world for heat exchange with the outside world. A lower opening 352 is provided on the lower end side wall of the third water tank 350, and the lower opening 352 is directly connected to the fourth water tank 360. The lower opening 352 is provided with a second switch valve 353. A small amount of liquid water is stored in the lower parts of the third water tank 350 and the fourth water tank 360. A second water-sealed cavity 351 is formed in the upper part of the third water tank 350. The upper end of the second water-sealed cavity 351 is connected to the output end of the evaporation tube 100 through the recovery pipe 110. The upper end of the second water-sealed cavity 351 is also connected to the first pipe 310. The dewatering component 300 of this technical solution has the same principle as that of the above-mentioned embodiment, which will not be repeated here. The dewatering component 300 of this technical solution has a more compact structure, is easy to install, and has a lower cost.

[0032] Furthermore, the angle of inclination of the input end of the evaporator tube 100 toward the output end of the evaporator tube 100 is 2° to 10°, preferably 2°. This inclination angle allows the liquid water to gradually flow toward the output end of the evaporator tube 100, and can also slow down the flow rate of the liquid water, so that the liquid water does not flow away quickly and has no time to evaporate. Liquid water absorbs heat and evaporates in the entire evaporator tube 100, so that the evaporator tube 100 can fully exchange heat with the surrounding air to ensure the cooling effect.

[0033] Reference Figure 3 Furthermore, water-absorbing fibers 120 are arranged at the lower part of the evaporation tube 100. From the cross-sectional view of the evaporation tube 100, the evaporation tube 100 contains water-absorbing fibers 120, liquid water and helium (or hydrogen) from bottom to top. The water-absorbing fibers 120 can effectively slow down the flow rate of liquid water, so that the liquid water in the evaporation tube 100 can fully absorb heat and evaporate. The evaporation tube 100 can fully exchange heat with the surrounding air to ensure the cooling effect.

[0034] Reference Figure 4 Furthermore, the evaporator tube 100 is configured as an S-shaped bent tube, which can increase the contact area of ​​the evaporator tube 100 with the surrounding air, increase the area for heat exchange, and speed up the cooling of the surrounding air.

[0035] Furthermore, the evaporation tube 100 is a copper tube, a stainless steel tube or a thin-walled plastic tube, which has good heat transfer performance, and is convenient for the evaporation tube 100 to exchange heat with the surrounding air, thereby increasing the cooling effect.

[0036] Reference Figure 1 Furthermore, a third switch valve 220 is connected to the input end of the water inlet pipe 200 to facilitate controlling the water inlet of the evaporation pipe 100. At the same time, the third switch valve 220 cooperates with the first switch valve 341 to form a closed loop space in the evaporation pipe 100. The third switch valve 220 and the first switch valve 341 can be closed before installation to facilitate extracting the air in the evaporation pipe from the three-way valve 210 to form a vacuum and fill the evaporation pipe 100 with helium or hydrogen.

[0037] Reference Figure 1 Furthermore, the water inlet pipe 200 is connected to a U-shaped bend pipe 230, which is located at the lower side of the water inlet pipe 200. Liquid water is stored in the U-shaped bend pipe to form a water seal, which can prevent the helium or hydrogen in the evaporation tube 100 from escaping.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A cold pipe system, characterized in that: include: An evaporation tube (100), the evaporation tube (100) being arranged obliquely, the input end of the evaporation tube (100) being higher than the output end of the evaporation tube (100), and a water-absorbing fiber (120) being arranged inside the evaporation tube (100); A water inlet pipe (200), the output end of the water inlet pipe (200) being connected to the input end of the evaporation pipe (100), the water inlet pipe (200) being connected to a three-way valve (210), the three-way valve (210) being used to input low molecular weight gas into the evaporation pipe (100); A dewatering component (300) is located below the evaporation tube (100), the dewatering component (300) having a water-sealed cavity, the output end of the evaporation tube (100) being connected to the water-sealed cavity via a recovery tube (110), the water-sealed cavity being connected to a first pipe (310), the first pipe (310) extending upward and communicating with the input end of the evaporation tube (100), the lower end of the first pipe (310) being connected to a molecular sieve (311), the molecular sieve (311) being used to limit the passage of water vapor, and the dewatering component (300) being used to absorb water vapor; The dewatering assembly (300) comprises a first water tank (320), a second water tank (330) and a second pipe (340); the first water tank (320) has the water-sealed cavity; the second water tank (330) has an upper opening (331); the second pipe (340) connects the lower end of the first water tank (320) with the lower end of the second water tank (330); and the second pipe (340) is connected to a first switch valve (341); Alternatively, the dewatering assembly (300) comprises a third water tank (350) and a fourth water tank (360), the third water tank (350) being placed inside the fourth water tank (360), the fourth water tank (360) being in communication with the outside, the third water tank (350) having the water-sealed cavity therein, the lower end of the third water tank (350) being provided with a lower opening (352), the lower opening (352) being in communication with the third water tank (350) and the fourth water tank (360), and the lower opening (352) being connected to a second switch valve (353).

2. A cooling pipe system according to claim 1, characterized in that: The angle at which the input end of the evaporation tube (100) is inclined toward the output end of the evaporation tube (100) is 2° to 10°.

3. A cooling pipe system according to claim 1, characterized in that: The evaporation tube (100) is an S-shaped curved tube.

4. A cooling pipe system according to claim 1, characterized in that: The small molecular weight gas is helium or hydrogen.

5. A cooling pipe system according to claim 1, characterized in that: The evaporation tube (100) is a copper tube, a stainless steel tube or a thin-walled plastic tube.

6. A cooling pipe system according to claim 1, characterized in that: The input end of the water inlet pipe (200) is connected to a third switch valve (220).

7. A cooling pipe system according to claim 1, characterized in that: The water inlet pipe (200) is connected to a U-shaped curved pipe (230), and the U-shaped curved pipe (230) is located at the lower side of the water inlet pipe (200).

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