An open ceiling cooling system

Abstract

The present invention discloses an open ceiling refrigeration system, including a ceiling, an evaporation tube, a water inlet pipe and a water removal assembly, wherein the evaporation tube is fixedly connected to the ceiling, the evaporation tube is arranged in an inclined manner, the input end of the evaporation tube is higher than the output end of the evaporation tube; the output end of the water inlet pipe is connected to the input end of the evaporation tube, and a three-way valve is connected to the water inlet pipe; the water removal assembly is located below the evaporation tube, the water removal assembly has a water sealing cavity, the output end of the evaporation tube is connected to the water sealing cavity through a recovery pipe, the water sealing cavity is connected to a first pipeline, the first pipeline extends upward and communicates with the input end of the evaporation tube, the lower end of the first pipeline is connected to a molecular sieve, the molecular sieve is used to limit the passage of water vapor, and the water removal assembly is used to absorb water vapor. The open ceiling refrigeration system of the present invention realizes refrigeration by absorbing heat and evaporating water, has low cost and is environmentally friendly.

Description

Technical Field

[0001] The invention relates to the technical field of indoor refrigeration, and in particular to an open ceiling refrigeration system. Background Art

[0002] At present, indoor refrigeration generally installs conventional air conditioners, such as central air conditioners, cabinet air conditioners, etc. The refrigeration technology used is nothing more than using a compressor to compress the refrigerant into a liquid and transport it to the evaporator. The liquid refrigerant evaporates into a gas to take away the heat, causing the evaporator to cool down to achieve cooling. However, this refrigeration technology has a high manufacturing cost and uses a refrigerant such as Freon, which is harmful to the environment and not conducive to environmental protection. 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 an open ceiling refrigeration system, which realizes refrigeration by absorbing heat and evaporating water, has low cost and is environmentally friendly.

[0004] An open ceiling refrigeration system according to an embodiment of the present invention comprises: a ceiling; an evaporating tube fixedly connected to the ceiling, the evaporating tube being arranged obliquely, the input end of the evaporating tube being higher than the output end of the evaporating tube; a water inlet pipe arranged outside the ceiling, the output end of the water inlet pipe being connected to the input end of the evaporating tube, the water inlet pipe being connected to a three-way valve; a dewatering assembly arranged outside the ceiling, the dewatering assembly being located below the evaporating tube, the dewatering assembly having a water-sealed cavity, the output end of the evaporating tube being connected to the water-sealed cavity via a recovery pipe, the water-sealed cavity being connected to a first pipe, the first pipe extending upward and communicating with the input end of the evaporating tube, the lower end of the first pipe being connected to a molecular sieve, the molecular sieve being used to limit the passage of water vapor, and the dewatering assembly being used to absorb water vapor.

[0005] The above technical solution has at least the following beneficial effects: the evaporator tube is fixedly connected to the ceiling, the air in the evaporator tube is extracted from the three-way valve to form a vacuum, and hydrogen is filled into the evaporator tube. At this time, the partial pressure of water vapor in the evaporator tube is zero, and the water inlet pipe supplies liquid water into the evaporator tube. Since the partial pressure of water vapor in the evaporator tube is zero, the liquid water absorbs heat and evaporates, and heat exchange occurs between the evaporator tube and the surrounding air (such as indoors) to cool the room. Since the evaporator tube is arranged obliquely toward the output end, the liquid water flows toward the output end of the evaporator tube and continues to absorb heat and evaporate. The indoor cooling is continued. After the water evaporates, the volume of the gas in the evaporating tube expands and the pressure increases, driving the gas to move to the water-sealed cavity through the recovery tube. After the gas reaches the water-sealed cavity, the water vapor gradually tends from an unsaturated state to an oversaturated state. The excess water vapor condenses into liquid water in the water-sealed cavity, and the hydrogen moves upward through the molecular sieve and the first pipeline and enters the evaporating tube for the next refrigeration cycle to achieve continuous refrigeration. This method utilizes water to absorb heat and evaporate to achieve refrigeration, has a low production cost, and does not require the use of environmentally harmful refrigerants such as Freon, which is beneficial to environmental protection.

[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 evaporation tube is a copper tube, a stainless steel tube or a thin-walled plastic tube.

[0010] According to some embodiments of the present invention, the water removal component includes a first water tank and a second water tank, the first water tank is placed in the second water tank, the second water tank has an upper opening, the second water tank is connected to the input end of the water inlet pipe through a third pipe, the third pipe is connected to a first switch valve, the lower end of the first water tank is provided with a lower opening, the lower opening connects the first water tank and the second water tank, the lower opening is connected to a second switch valve, and the first water tank has a water-sealed cavity.

[0011] According to some embodiments of the present invention, a sunshade is provided on the top of the second water tank.

[0012] According to some embodiments of the present invention, a third switch valve is connected to the input end of the water inlet pipe.

[0013] 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.

[0014] According to some embodiments of the present invention, the open ceiling refrigeration system also includes a hydrogen production device, which includes a third water tank, an anode block, a cathode block, a collecting hood and an external DC power supply. The third water tank contains a hydrogen-producing electrolyte, the anode block and the cathode block are arranged in the third water tank at intervals, the anode block is connected to the positive pole of the external DC power supply, the cathode block is connected to the negative pole of the external DC power supply, the collecting hood is arranged above the cathode block, the collecting hood is connected to the water-sealed cavity through a second pipe, and a fourth switch valve is provided on the second 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 It is a schematic diagram of the structure of an open ceiling refrigeration system in an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of an evaporation tube in an embodiment of the present invention;

[0019] Figure 3 FIG. 4 is a top view of the evaporation tube in the embodiment of the present invention.

[0020] Reference numerals:

[0021] Ceiling 100, U-shaped pipe clamp 110;

[0022] Evaporation tube 200, recovery tube 210, water absorbing fiber 220;

[0023] Water inlet pipe 300, three-way valve 310, third switch valve 320, U-shaped elbow 330;

[0024] Dewatering assembly 400, first pipe 410, molecular sieve 411, first water tank 420, water sealing chamber 421, lower opening 422, second switch valve 423, second water tank 430, upper opening 431, third pipe 432, first switch valve 433, sunshade 434;

[0025] A hydrogen production device 500 , a third water tank 510 , an anode block 520 , a cathode block 530 , a collecting cover 540 , an external DC power supply 550 , a second pipeline 560 , and a fourth switch valve 561 . DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figure 1 and Figure 2The embodiment of the present invention provides an open ceiling refrigeration system, including a ceiling 100, an evaporation tube 200 is fixedly connected to the ceiling 100 through a U-shaped tube clamp 110, the evaporation tube 200 is used for evaporation and heat absorption, the evaporation tube 200 is arranged obliquely, and the input end of the evaporation tube 200 is higher than the output end of the evaporation tube 200, so that liquid water flows to the output end of the evaporation tube 200 by itself, and the input end of the evaporation tube 200 is connected to a water inlet pipe 300, which is arranged outside the ceiling 100, and the water inlet pipe 300 is used to supply liquid water to the evaporation tube 200. Liquid water is input into the tube 200, and the output end of the water inlet pipe 300 extends into the evaporation tube 200. The water inlet pipe 300 is connected to a three-way valve 310, and the three-way valve 310 is used to extract the air in the evaporation tube 200 to form a vacuum; the refrigeration system also includes a dewatering component 400, which is arranged outside the ceiling 100 and below the evaporation tube 200. The dewatering component 400 is used to absorb water vapor. Specifically, the dewatering component 400 includes a first water tank 420 and a second water tank 430. The first water tank 420 is placed In the second water tank 430, the second water tank 430 has an upper opening 431, and the second water tank 430 is connected to the outside world for heat exchange with the outside world. A lower opening 422 is provided on the lower end side wall of the first water tank 420, and the lower opening 422 enables the first water tank 420 to communicate with the second water tank 430. A second switch valve 423 is provided on the lower opening 422 for controlling the water flow rate. The second water tank 430 is connected to the input end of the water inlet pipe 300 through the third pipe 432, and a small amount of liquid water is injected into the second water tank 430 to cover the lower water tank 420. The opening 422 forms a water-sealed cavity 421 at the upper part of the first water tank 420. The third pipe 432 is provided with a first switch valve 433 to control the water inlet speed. The upper end of the water-sealed cavity 421 is connected to the output end of the evaporation pipe 200 through the recovery pipe 210. The upper end of the water-sealed cavity 421 is also connected to the first pipe 410. The first pipe 410 extends upward and communicates with the input end of the evaporation pipe 200. The lower end of the first pipe 410 is connected to a molecular sieve 411. The molecular sieve 411 only allows hydrogen to pass through and restricts the passage of water vapor.The refrigeration system also includes a hydrogen production device 500, which is arranged outside the ceiling 100. The hydrogen production device 500 is connected to the water-sealed chamber 421 through a second pipe 560. The hydrogen production device 500 is used to produce high-purity hydrogen and input it into the evaporation tube 200 to provide a stable source of hydrogen. The high-purity hydrogen ensures a good refrigeration effect. Specifically, the hydrogen production device 500 includes a third water tank 510, an anode block 520, a cathode block 530, a collection cover 540 and an external DC power supply 550. The anode block 520 is configured as a carbon rod, and the cathode block 530 is configured as an iron rod. The third water tank 510 is filled with a hydrogen production electrolyte, which is an unsaturated sodium chloride solution. The carbon rod and the iron rod are arranged in the third water tank 510 at intervals and immersed. In the unsaturated sodium chloride solution, the carbon rod is connected to the positive electrode of the external DC power supply 550, and the iron rod is connected to the negative electrode of the external DC power supply 550. The external DC power supply 550 can obtain the commonly used household power supply through rectification. According to the chemical reaction equation NaCl+H2O==power on==NaClO+H2↑, hydrogen can be produced, and the hydrogen escapes at the iron rod. The collecting cover 540 is set above the iron rod. The collecting cover 540 is used to collect the produced hydrogen. The top of the collecting cover 540 is connected to one end of the second pipeline 560, and the other end of the second pipeline 560 is connected to the water-sealed cavity 421, so as to provide a stable source of hydrogen to the evaporation tube 200. The second pipeline 560 is provided with a fourth switch valve 561 to facilitate the control of the flow rate of hydrogen. ;

[0031] The evaporation tube 200 is fixedly connected to the ceiling 100 to maintain the beauty of the room. When the refrigeration system is working, the air in the evaporation tube 200 is first extracted from the three-way valve 310 to form a vacuum, and hydrogen is produced through the hydrogen production device 500 to fill the evaporation tube 200. The hydrogen pressure in the evaporation tube 200 is set to one atmosphere. At this time, the partial pressure of water vapor in the evaporation tube 200 is zero. The water inlet pipe 300 supplies liquid water to the evaporation tube 200. According to the national water supply specifications, the pressure of liquid water is greater than one atmosphere. Since the partial pressure of water vapor in the evaporation tube 200 is zero, the liquid water absorbs heat and evaporates, and heat exchange occurs with the surrounding air (such as indoors) through the evaporation tube 200 to cool the room. Since the evaporation tube 200 is arranged inclined toward the output end, the liquid water flows toward the output end of the evaporation tube 200 and continues to absorb heat and evaporate. The indoor room is continuously cooled. After the water evaporates, the volume of the mixed gas of hydrogen and water vapor in the evaporation tube 200 expands, and the pressure increases, driving the mixed gas to move to the water-sealed chamber 421 through the recovery pipe 210. After the mixed gas reaches the water-sealed chamber 421, the water vapor in the mixed gas in the water-sealed chamber 421 gradually tends from an unsaturated state to an oversaturated state, and the excess water vapor condenses into liquid water in the water-sealed chamber 421. The liquid water exchanges heat with the outside through the upper opening 431 of the second water tank 430 to dissipate heat, and the hydrogen moves upward through the molecular sieve 411 and the first pipeline 410 and enters the evaporation tube 200 to perform the next refrigeration cycle, thereby achieving continuous refrigeration. This method utilizes water to absorb heat and evaporate to achieve refrigeration, does not require a compressor, has low production cost, low power consumption, and does not require the use of environmentally harmful refrigerants such as Freon, which is beneficial to environmental protection.

[0032] Furthermore, the angle of inclination of the input end of the evaporation tube 200 toward the output end of the evaporation tube 200 is 2° to 10°, preferably 2°. This inclination angle allows the liquid water to gradually flow toward the output end of the evaporation tube 200, 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 evaporation tube 200, so that the evaporation tube 200 can fully exchange heat with the indoor air to ensure the cooling effect.

[0033] Reference Figure 2 Furthermore, water-absorbing fibers 220 are arranged at the lower part of the evaporating tube 200. From the cross-sectional view of the evaporating tube 200, the evaporating tube 200 contains water-absorbing fibers 220, liquid water and hydrogen from bottom to top. The water-absorbing fibers 220 can effectively slow down the flow rate of liquid water, so that the liquid water in the evaporating tube 200 can fully absorb heat and evaporate. The evaporating tube 200 fully exchanges heat with the indoor air to ensure the cooling effect.

[0034] Reference Figure 3 Furthermore, the evaporating tube 200 is configured as an S-shaped bent tube, which can increase the contact area between the evaporating tube 200 and the indoor air, increase the area for heat exchange, and speed up the indoor cooling.

[0035] Furthermore, the evaporation tube 200 is a copper tube, a stainless steel tube or a thin-walled plastic tube, which has good heat transfer performance, and facilitates heat exchange between the evaporation tube 200 and the indoor air, thereby increasing the cooling effect.

[0036] Reference Figure 1 Furthermore, a sunshade 434 is provided on the top of the second water tank 430 to prevent direct sunlight and avoid causing the water temperature in the second water tank 430 to be too high and affect the cooling effect of the water.

[0037] Reference Figure 1 Furthermore, a third switch valve 320 is connected to the input end of the water inlet pipe 300 to control the water inlet speed of the evaporation pipe 200. At the same time, the third switch valve 320 cooperates with the second switch valve 423 to form a closed loop space in the evaporation pipe 200. The third switch valve 320 and the second switch valve 423 can be closed before installation to facilitate the extraction of air in the evaporation pipe 200 from the three-way valve 310 to form a vacuum.

[0038] Reference Figure 1 Furthermore, the water inlet pipe 300 is connected to a U-shaped bend pipe 330, which is located at the lower side of the water inlet pipe 300. Liquid water is stored in the U-shaped bend pipe 330 to form a water seal, which can prevent the hydrogen in the evaporation tube 200 from escaping.

[0039] 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. An open ceiling cooling system, characterized in that: include: ceiling(100); An evaporation pipe (200) is fixedly connected to the ceiling (100); the evaporation pipe (200) is arranged obliquely; the input end of the evaporation pipe (200) is higher than the output end of the evaporation pipe (200); and water-absorbing fibers (220) are arranged inside the evaporation pipe (200); A water inlet pipe (300) is arranged outside the ceiling (100), the output end of the water inlet pipe (300) is connected to the input end of the evaporation pipe (200), and a three-way valve (310) is connected to the water inlet pipe (300); A dewatering component (400) is arranged outside the ceiling (100), the dewatering component (400) is located below the evaporation tube (200), the dewatering component (400) has a water-sealed cavity (421), the output end of the evaporation tube (200) is connected to the water-sealed cavity (421) via a recovery tube (210), the water-sealed cavity (421) is connected to a first pipe (410), the first pipe (410) extends upward and communicates with the input end of the evaporation tube (200), the lower end of the first pipe (410) is connected to a molecular sieve (411), the molecular sieve (411) is used to limit the passage of water vapor, and the dewatering component (400) is used to absorb water vapor; The dewatering assembly (400) comprises a first water tank (420) and a second water tank (430); the first water tank (420) is placed inside the second water tank (430); the second water tank (430) has an upper opening (431); the second water tank (430) is connected to the input end of the water inlet pipe (300) via a third pipe (432); the third pipe (432) is connected to a first switch valve (433); a lower opening (422) is provided at the lower end of the first water tank (420); the lower opening (422) communicates with the first water tank (420) and the second water tank (430); the lower opening (422) is connected to a second switch valve (423); and a water-sealed cavity (421) is provided inside the first water tank (420).

2. An open ceiling refrigeration system according to claim 1, characterized in that: The angle at which the input end of the evaporation tube (200) is inclined toward the output end of the evaporation tube (200) is 2° to 10°.

3. An open ceiling cooling system according to claim 1, characterized in that: The evaporation tube (200) is an S-shaped curved tube.

4. An open ceiling refrigeration system according to claim 1, characterized in that: The evaporation tube (200) is a copper tube, a stainless steel tube or a thin-walled plastic tube.

5. An open ceiling refrigeration system according to claim 1, characterized in that: A sunshade (434) is provided on the top of the second water tank (430).

6. An open ceiling cooling system according to claim 1, characterized in that: The input end of the water inlet pipe (300) is connected to a third switch valve (320).

7. An open ceiling refrigeration system according to claim 1, characterized in that: The water inlet pipe (300) is connected to a U-shaped curved pipe (330), and the U-shaped curved pipe (330) is located at the lower side of the water inlet pipe (300).

8. An open ceiling cooling system according to claim 1, characterized in that: The open ceiling refrigeration system further comprises a hydrogen production device (500), the hydrogen production device (500) comprising a third water tank (510), an anode block (520), a cathode block (530), a collection hood (540) and an external DC power supply (550); a hydrogen production electrolyte is stored in the third water tank (510); the anode block (520) and the cathode block (530) are arranged in the third water tank (510) at intervals; the anode block (520) is connected to the positive electrode of the external DC power supply (550); the cathode block (530) is connected to the negative electrode of the external DC power supply (550); the collection hood (540) is arranged above the cathode block (530); the collection hood (540) is connected to the water sealing chamber (421) via a second pipe (560); and a fourth switch valve (561) is arranged on the second pipe (560).

Images