Cold source generating device and refrigeration equipment

Abstract

The present application provides a cold source generating device and a refrigeration equipment. The piston is controlled to reciprocate by a driving unit. When the pressure in the negative pressure chamber is reduced to a certain value, the water in the water storage chamber boils and generates water vapor, and the water vapor enters the negative pressure chamber through the channel formed by the water baffle and the retaining ring. Then the piston descends, and the water baffle abuts against the retaining ring under the piston pressure, deadweight and elastic pull of the first elastic member, and the negative pressure chamber is disconnected from the water storage chamber; the valve unit controls the exhaust pipe to be connected with the negative pressure chamber, and the water vapor in the negative pressure chamber is discharged by the exhaust pipe, and the heat of the remaining water in the water storage chamber is taken away by the water vapor, forming a cold source with a lower temperature and can be used for refrigeration. Therefore, the refrigeration equipment using the cold source generating device realizes refrigeration by replacing the traditional refrigerant with cold water, and the pollution to the environment is small; and the boiling point of water at negative pressure is low, the temperature of the water vapor formed is also low, and the heat release to the outside is small, which can effectively reduce the heat island effect and the greenhouse effect.

Description

Technical Field

[0001] The present application belongs to the field of refrigeration equipment, and more specifically, relates to a cold source generating device and a refrigeration equipment using the cold source generating device. Background Art

[0002] At present, most refrigeration equipment often achieves refrigeration by compressing refrigerants, and the widely used refrigerants are Freon, etc. However, there are the following shortcomings in achieving refrigeration through refrigerants: 1. The volatilization and leakage of refrigerants will cause serious pollution to the environment; 2. The refrigeration equipment releases a large amount of heat to the outside, which not only wastes energy but also aggravates the urban heat island effect and greenhouse effect. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a cold source generating device and a refrigeration device to solve the problem in the related art that the refrigeration device realizes refrigeration by compressing the refrigerant and seriously pollutes the environment.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0005] On the one hand, a cold source generating device is provided, comprising a tank body with an opening at one end, a retaining ring installed on the inner circumferential surface of the tank body, and a water baffle plate used to cooperate with the retaining ring to resist, the water baffle plate is installed in the tank body, the water baffle plate is located above the retaining ring, and the water baffle plate divides the tank body into a water storage chamber and a negative pressure chamber; the cold source generating device also includes a first elastic member for elastically pulling the water baffle plate, a piston installed in the negative pressure chamber, a driving unit for driving the piston to reciprocate along the length direction of the tank body, an exhaust pipe connected to the negative pressure chamber, and a valve unit for controlling the conduction or disconnection of the exhaust pipe; the first elastic member is arranged in the water storage chamber, one end of the first elastic member is connected to the water baffle plate, the other end of the first elastic member is connected to the tank body, the driving unit is connected to the piston, and the valve unit is installed on the exhaust pipe.

[0006] In one embodiment, the tank body, the retaining ring, the water retaining plate, the first elastic member, the piston, the exhaust pipe and the valve unit are combined into an air supply unit, and the number of the air supply units is multiple, and the water storage chambers of the multiple tank bodies are connected; the driving unit includes a crankshaft, a piston rod connecting each of the pistons to the crankshaft, and a driving member for driving the crankshaft to rotate so that two adjacent pistons alternately reciprocate; one end of each of the piston rods is hinged to the crankshaft, and the other end of each of the piston rods is hinged to the corresponding piston, and the driving member is connected to the crankshaft.

[0007] In one embodiment, the driving unit further comprises a driven gear mounted on the crankshaft and a driving gear meshing with the driven gear, and the driving member is connected to the driving gear.

[0008] In one embodiment, the cold source generating device also includes a water tank, a water pipe connecting the water tank and the water storage chamber, and a control unit for controlling the conduction or disconnection of the water pipe; the control unit is installed on the water pipe, and the control unit is arranged in the water storage chamber.

[0009] In one embodiment, the control unit includes a shell, a rotating seat rotatably installed in the shell, a swing rod connected to the rotating seat at one end, and a floating plate connected to the other end of the swing rod; a water inlet pipe connected to the water pipe is installed at one end of the shell, and a water outlet pipe connected to the water storage chamber is installed at the other end of the shell; a connecting channel for controlling the connection or disconnection of the water inlet pipe and the water outlet pipe is opened on the rotating seat; the swing rod extends out of the shell, and a swing channel for the swing rod to swing is opened on the shell.

[0010] In one embodiment, the valve unit includes a valve body connecting the exhaust pipe and the negative pressure chamber, a valve core installed in the valve body, and a second elastic member for elastically driving the valve core to move so as to connect or disconnect the negative pressure chamber and the exhaust pipe; one end of the second elastic member abuts against the valve core, and the other end of the second elastic member abuts against the valve body.

[0011] In one embodiment, the side of the piston facing the retaining ring is a first inclined surface, the retaining ring is correspondingly provided with a second inclined surface matching the first inclined surface, and the water retaining plate is correspondingly provided with a third inclined surface matching the second inclined surface.

[0012] In one embodiment, the cold source generating device further comprises a heat exchange plate installed at the bottom of the tank body.

[0013] In one embodiment, the cold source generating device further comprises a sealing ring filling a gap between the inner circumference of the tank body and the piston.

[0014] On the other hand, a refrigeration device is provided, comprising the above-mentioned cold source generating device.

[0015] The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects: the present application divides the tank into a water storage chamber and a negative pressure chamber by a water baffle. The driving unit controls the reciprocating motion of the piston. When the pressure in the negative pressure chamber is reduced to a certain value, the water in the water storage chamber boils and generates water vapor. At this time, the water baffle and the retaining ring are separated to form a channel, and the water vapor enters the negative pressure chamber through the channel and finally reaches the saturated vapor pressure. Then the driving unit drives the piston to descend, and the water baffle abuts against the retaining ring under the piston pressure, deadweight and elastic force of the first elastic member, and the negative pressure chamber is disconnected from the water storage chamber; the valve unit controls the exhaust pipe to be connected with the negative pressure chamber, and the water vapor in the negative pressure chamber is discharged from the exhaust pipe, and the heat of the remaining water in the water storage chamber is taken away by the water vapor, forming a low-temperature cold source that can be used for refrigeration. Therefore, the refrigeration equipment using the cold source generating device achieves refrigeration by replacing the traditional refrigerant with cold water, which has a low degree of pollution to the environment; and the boiling point of water is low under negative pressure, the temperature of the water vapor formed is also low, and the heat release to the outside is small, which can effectively reduce the heat island effect and the greenhouse effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a cold source generating device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the air supply unit provided in the embodiment of the present application;

[0019] Figure 3 A schematic diagram of the structure of a control unit provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the structure of the connection between the valve unit and the exhaust pipe provided in an embodiment of the present application.

[0021] Among them, the main marks of the drawings in the figure are:

[0022] 1-air supply unit; 11-tank body; 111-water storage chamber; 112-negative pressure chamber; 12-retaining ring; 121-second inclined surface; 13-water retaining plate; 131-third inclined surface; 14-first elastic member; 15-piston; 151-first inclined surface; 152-sealing ring; 16-exhaust pipe;

[0023] 17-valve unit; 171-valve body; 172-valve core; 173-second elastic member;

[0024] 2-driving unit; 21-crankshaft; 22-piston rod; 23-driving member; 24-driven gear; 25-driving gear;

[0025] 3-control unit; 31-housing; 32-rotating seat; 321-connecting channel; 33-swing rod; 34-floating plate; 35-water inlet pipe; 36-water outlet pipe;

[0026] 4-water tank; 5-water pipe; 6-heat exchanger. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 application.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0033] It should be noted that Figure 1 The direction indicated by the middle arrow is the movement direction of the piston 15; Figure 3 The direction indicated by the arrow is the direction of water flow; Figure 4 The direction indicated by the arrow is the flow direction of water vapor.

[0034] See also Figure 1 and Figure 2 The cold source generating device provided in the embodiment of the present application is now described. The cold source generating device comprises a tank body 11 with an opening at one end, a retaining ring 12 installed on the inner circumference of the tank body 11, and a water retaining plate 13 used to cooperate with the retaining ring 12 to resist. The water retaining plate 13 is installed in the tank body 11, the water retaining plate 13 is located above the retaining ring 12, and the water retaining plate 13 divides the tank body 11 into a water storage chamber 111 and a negative pressure chamber 112. The cold source generating device further includes a first elastic member 14 for elastically pulling the water baffle 13, a piston 15 installed in the negative pressure chamber 112, a driving unit 2 for driving the piston 15 to reciprocate along the length direction of the tank body 11 (the direction of the central axis of the tank body 11), an exhaust pipe 16 connected to the negative pressure chamber 112, and a valve unit 17 for controlling the exhaust pipe 16 to be turned on or off; the first elastic member 14 is arranged in the water storage chamber 111, one end of the first elastic member 14 is connected to the water baffle 13, and the other end of the first elastic member 14 is connected to the tank body 11; the driving unit 2 is connected to the piston 15, and the valve unit 17 is installed on the exhaust pipe 16. Among them, the first elastic member 14 can be a spring, which is not limited here.

[0035] It should be noted that the relationship between the boiling point of water and pressure is shown in the following table:

[0036] Temperature ℃ PressurePa Temperature ℃ PressurePa Temperature ℃ PressurePa Temperature ℃ PressurePa Temperature ℃ PressurePa -40 12.8 -3 475.4 24 2983.8 51 12958.9 78 43636.4 -38 16.1 -2 517.2 25 3167.7 52 13612.2 79 45462.4 -36 20.1 -1 562.1 26 3361.0 53 14292.2 80 47342.8 -34 24.9 0 610 27 3565.0 54 14998.8 81 49289.3 -32 30.9 1 657.3 28 3779.7 55 15732.0 82 51315.8 -30 38.4 2 705.3 29 4005.0 56 16505.3 83 53408.9 -28 47.1 3 758.6 30 4242.3 57 17305.2 84 55568.8 -26 57.2 4 813.3 31 4492.9 58 18145.2 85 57808.6 -24 70.1 5 871.9 32 4754.3 59 19011.8 86 60115.1 -22 85.8 6 934.6 33 5030.3 60 19918.4 87 62488.2 -20 102.9 7 1001.3 34 5319.6 61 20851.6 88 64941.3 -19 113.3 8 1073.2 35 5623.5 62 21838.2 89 67474.5 -18 124.6 9 1147.9 36 5940.8 63 22851.5 90 70110.9 -17 136.9 10 1227.9 37 5275.5 64 23904.7 91 72807.4 -16 150.4 11 1311.9 38 6619.5 65 24998.0 92 75593.8 -15 165.0 12 1402.6 39 6991.4 66 26144.5 93 78473.5 -14 180.9 13 1497.2 40 7375.4 67 27331.1 94 81446.7 -13 198.1 14 1598.5 41 7778.0 68 28557.7 95 84513.1 -12 216.9 15 1705.2 42 8199.3 69 29824.2 96 87672.8 -11 237.3 16 1817.2 43 8639.3 70 31157.4 97 90939.2 -10 259.4 17 1937.2 44 9100.6 71 32517.3 98 94298.9 -9 283.3 18 2063.8 45 9583.2 72 34023.6 99 97752.0 -8 309.4 19 2197.2 46 10085.8 73 35423.8 100 101325 -7 377.6 20 2328.5 47 10612.5 74 36957.0 -6 389.1 21 2486.5 48 11160.4 75 38543.5 -5 401.0 22 2643.8 49 11735.0 76 40183.4 -4 436.8 23 2809.1 50 12333.7 77 41876.6

[0037] As can be seen from the table above, under standard atmospheric pressure, the boiling point of water is 100°C. As the pressure gradually decreases, the boiling point of water also decreases, that is, when the pressure drops to a certain value, water can boil at a lower temperature and produce water vapor.

[0038] When in use, in the initial position, the valve unit 17 is closed, the exhaust pipe 16 is disconnected, and the first elastic member 14 is always in a stretched state, so that the water baffle 13 abuts against the retaining ring 12, thereby separating the water storage chamber 111 from the negative pressure chamber 112. When the drive unit 2 drives the piston 15 to reciprocate, the pressure in the negative pressure chamber 112 gradually decreases, and the water baffle 13 rises and separates from the retaining ring 12. When the pressure drops to a certain value, the water in the water storage chamber 111 boils. For example, when the pressure is 1227.9 Pa, the temperature of the water when it boils is 10°C. The water vapor generated when the water boils is discharged into the negative pressure chamber 112 through the channel formed by the interval between the water baffle 13 and the retaining ring 12, and finally reaches the saturated vapor pressure. Subsequently, the driving unit 2 drives the piston 15 to move downward. During the downward movement of the piston 15, the water baffle 13 is pulled by the pressure of the piston 15, the deadweight of the water baffle 13 and the elastic force of the first elastic member 14, and the water baffle 13 is re-engaged with the retaining ring 12, and the water storage chamber 111 is disconnected from the negative pressure chamber 112. At this time, the valve unit 17 is opened, and the water vapor in the negative pressure chamber 112 is discharged through the exhaust pipe 16 under the pressure of the piston 15. The heat of the water in the water storage chamber 111 is taken away by the water vapor, and the temperature of the water in the water storage chamber 111 is relatively low under the negative pressure state, so it can be used as a cold source to achieve a cooling effect.

[0039] In this structure, the present application divides the tank body 11 into a water storage chamber 111 and a negative pressure chamber 112 by a water baffle 13. The piston 15 is controlled to reciprocate by the driving unit 2. When the pressure in the negative pressure chamber 112 is reduced to a certain value, the water in the water storage chamber 111 boils and generates water vapor. At this time, the water baffle 13 and the retaining ring 12 are separated to form a channel, and the water vapor enters the negative pressure chamber 112 through the channel and finally reaches the saturated vapor pressure. Then the driving unit 2 drives the piston 15 to descend, and the water baffle 13 abuts against the retaining ring 12 under the pressure of the piston 15, the deadweight and the elastic force of the first elastic member 14, and the negative pressure chamber 112 is disconnected from the water storage chamber 111; the valve unit 17 controls the exhaust pipe 16 to be connected with the negative pressure chamber 112, and the water vapor in the negative pressure chamber 112 is discharged from the exhaust pipe 16, and the heat of the remaining water in the water storage chamber 111 is taken away by the water vapor, forming a low temperature cold source and can be used for refrigeration. Therefore, the refrigeration equipment using the cold source generating device achieves refrigeration by replacing the traditional refrigerant with cold water, which has a low degree of pollution to the environment; and the boiling point of water is low under negative pressure, the temperature of the water vapor formed is also low, and the heat release to the outside is small, which can effectively reduce the heat island effect and the greenhouse effect.

[0040] In one embodiment, see Figure 1 and Figure 2 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the tank body 11, the retaining ring 12, the water retaining plate 13, the first elastic member 14, the piston 15, the exhaust pipe 16 and the valve unit 17 are combined into an air supply unit 1, and the number of air supply units 1 is multiple, and the water storage chambers 111 of the multiple tank bodies 11 are connected; the driving unit 2 includes a crankshaft 21, a piston rod 22 connecting each piston 15 with the crankshaft 21, and a driving member 23 for driving the crankshaft 21 to rotate so that two adjacent pistons 15 alternately reciprocate; one end of each piston rod 22 is hinged to the crankshaft 21, and the other end of each piston rod 22 is hinged to the corresponding piston 15, and the driving member 23 is connected to the crankshaft 21. Among them, the driving member 23 can be a motor, which is not limited here. In this structure, when the driving member 23 drives the crankshaft 21 to rotate, the two adjacent pistons 15 can be driven to reciprocate through multiple piston rods 22, that is, when one piston 15 moves up, the other piston 15 moves down, thereby improving efficiency. Moreover, when one piston 15 moves up or down, it helps another piston 15 to move down or up, and the movement synchronization of multiple pistons 15 is good. Among them, the air supply unit 1 in the embodiment of the present application can be two. When one of the pistons 15 rises to the highest point, the pressure in the corresponding negative pressure chamber 112 is less than a standard atmospheric pressure, so that the piston 15 is subjected to pressure, and the crankshaft 21 drives the other piston 15 to rise with the help of the pressure.

[0041] In some embodiments, the driving unit 2 may also be an air cylinder, an oil cylinder, etc. directly connected to the piston 15. When the number of the air supply unit 1 is one, the piston 15 may be directly driven by one air cylinder or an oil cylinder. When the number of the air supply unit 1 is multiple, multiple pistons 15 may be driven by air cylinders or oil cylinders respectively.

[0042] In one embodiment, see Figure 1 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the driving unit 2 further includes a driven gear 24 mounted on the crankshaft 21 and a driving gear 25 meshing with the driven gear 24, and the driving member 23 is connected to the driving gear 25. In this structure, the crankshaft 21 is driven to rotate by the driving gear 25 and the driven gear 24, and the reliability of the rotation of the crankshaft 21 is high.

[0043] In one embodiment, see Figure 1 , the diameter of the driving gear 25 is smaller than the diameter of the driven gear 24. This structure can improve the power output efficiency of the driving member 23 by driving the large gear to rotate through the small gear, saving time and effort.

[0044] In one embodiment, see Figure 1As a specific implementation of the cold source generating device provided in the embodiment of the present application, the cold source generating device further includes a water tank 4, a water pipe 5 connecting the water tank 4 and the water storage chamber 111, and a control unit 3 for controlling the on or off of the water pipe 5; the control unit 3 is installed on the water pipe 5, and the control unit 3 is arranged in the water storage chamber 111. With this structure, water can be supplied to the water storage chamber 111 through the water tank 4 and the water pipe 5, and the water supply operation is convenient and fast.

[0045] In one embodiment, see Figure 1 and Figure 3 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the control unit 3 includes a shell 31, a rotating seat 32 rotatably installed in the shell 31, a swing rod 33 connected to the rotating seat 32 at one end, and a floating plate 34 connected to the other end of the swing rod 33; a water inlet pipe 35 connected to the water pipe 5 is installed at one end of the shell 31, and a water outlet pipe 36 connected to the water storage chamber 111 is installed at the other end of the shell 31; a connecting channel 321 for controlling the connection or disconnection of the water inlet pipe 35 and the water outlet pipe 36 is provided on the rotating seat 32; the swing rod 33 extends out of the shell 31, and a swing channel (not shown) for the swing rod 33 to swing is provided on the shell 31. With this structure, when the water in the water storage chamber 111 is at a low water level, the connecting channel 321 on the rotating seat 32 connects the water inlet pipe 35 with the water outlet pipe 36. When the driving member 23 drives the crankshaft 21 to rotate and drives the piston rod 22 to reciprocate, as the pressure in the negative pressure chamber 112 gradually decreases, the water baffle 13 rises and automatically pumps the water in the water tank 4 into the water storage chamber 111. As the water level in the water storage chamber 111 continues to rise, the floating plate 34 gradually rises. During the rising process, the floating plate 34 drives the rotating seat 32 to rotate in the shell 31 through the swing rod 33. When the high water level state is reached, the rotating seat 32 rotates a certain angle. At this time, the connecting channel 321 is misaligned with the water inlet pipe 35 and the water outlet pipe 36 respectively, and the water inlet pipe 35 is disconnected from the water outlet pipe 36, so that the water tank 4 is disconnected from the water storage chamber 111. The swing channel is used for the swing rod 33 to swing, and can also limit the rotation angle of the swing rod 33.

[0046] In some embodiments, the control unit 3 may also be a manual switch valve, or a one-way solenoid valve, etc., which is not limited here. In some other embodiments, the water tank 4 may be provided with a water pump for automatically pumping water into the water storage chamber 111, thereby improving the water supply efficiency.

[0047] In one embodiment, see Figure 1 and Figure 4As a specific implementation of the cold source generating device provided in the embodiment of the present application, the valve unit 17 includes a valve body 171 connecting the exhaust pipe 16 and the negative pressure chamber 112, a valve core 172 installed in the valve body 171, and a second elastic member 173 for elastically driving the valve core 172 to move so as to connect or disconnect the negative pressure chamber 112 and the exhaust pipe 16; one end of the second elastic member 173 abuts against the valve core 172, and the other end of the second elastic member 173 abuts against the valve body 171. Among them, the second elastic member 173 can be a spring, which is not the only limitation here. In this structure, both ends of the valve body 171 are open ends, and the second elastic member 173 is always in a compressed state. In the initial state, the second elastic member 173 pushes the valve core 172, so that the valve core 172 blocks the open end of the valve body 171 close to the negative pressure chamber 112, thereby disconnecting the negative pressure chamber 112 from the exhaust pipe 16. When the piston 15 descends, the pressure in the negative pressure chamber 112 gradually increases. When it is greater than the elastic thrust of the second elastic member 173, the valve core 172 is pushed. The second elastic member 173 continues to compress. At this time, the valve core 172 opens the opening end of the valve body 171 close to the negative pressure chamber 112, thereby realizing the conduction between the negative pressure chamber 112 and the exhaust pipe 16, which is convenient for discharging the water vapor in the negative pressure chamber 112. When the piston 15 rises, the pressure in the negative pressure chamber 112 decreases, and the second elastic member 173 pushes the valve core 172, so that the valve core 172 again blocks the opening end of the valve body 171 close to the negative pressure chamber 112, thereby realizing the disconnection between the negative pressure chamber 112 and the exhaust pipe 16.

[0048] In some embodiments, the valve unit 17 may also be a manually controlled switch valve, or a one-way solenoid valve, etc., which is not limited here.

[0049] In one embodiment, see Figure 2 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the side of the piston 15 facing the retaining ring 12 is a first inclined surface 151, and the retaining ring 12 is correspondingly provided with a second inclined surface 121 matching the first inclined surface 151, and the water retaining plate 13 is correspondingly provided with a third inclined surface 131 matching the second inclined surface 121. In this structure, the direction from the negative pressure chamber 112 to the water storage chamber 111 is taken as the reference direction, and the width of the piston 15, the width of the retaining ring 12, and the width of the water retaining plate 13 are gradually reduced in this reference direction, and the first inclined surface 151 and the third inclined surface 131 can be closely fitted with the second inclined surface 121, respectively, thereby improving the tightness of the fitting between the piston 15 and the retaining ring 12, and the tightness of the fitting between the water retaining plate 13 and the retaining ring 12.

[0050] In one embodiment, see Figure 1 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the cold source generating device further includes a heat exchange plate 6 installed at the bottom of the tank body 11. In this structure, the heat exchange plate 6 can exchange heat with the outside to improve the refrigeration effect.

[0051] In one embodiment, see Figure 2 As a specific implementation of the cold source generating device provided in the embodiment of the present application, the cold source generating device further includes a sealing ring 152 that fills the gap between the inner circumference of the tank body 11 and the piston 15. In this structure, the sealing ring 152 can fill the gap between the tank body 11 and the piston 15, thereby ensuring the sealing performance of the negative pressure chamber 112, and facilitating the formation of negative pressure.

[0052] In some embodiments, a groove for accommodating the sealing ring 152 is provided on the outer circumferential surface of the piston 15 , so that the sealing ring 152 can be quickly positioned and disassembled.

[0053] The present application also provides a refrigeration device, including the above-mentioned cold source generating device. The refrigeration device may be an air conditioner or the like. When this structure is applied to an air conditioner, the hot air in the room is directed to the cold water and heat exchange plate 6 in the water storage chamber 111 by means of a fan, and the hot air and the cold water are not in direct contact, thereby having a certain cooling effect. When it is necessary to refrigerate the liquid, the heat exchange plate 6 can be inserted into the liquid to cool the liquid through heat exchange. Therefore, the refrigeration device using the cold source generating device replaces the traditional refrigerant with cold water to achieve refrigeration, and the degree of pollution to the environment is small; moreover, the boiling point of water is low at negative pressure, the temperature of the water vapor formed is also low, and the heat release to the outside is small, which reduces the heat island effect and the greenhouse effect.

[0054] When the refrigeration equipment is used in a poorly ventilated room, in order to prevent the discharged water vapor from causing excessive air humidity and causing discomfort to the people in the room, the water vapor needs to be discharged directly to the outside through the exhaust pipe 16.

[0055] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A cold source generating device, characterized in that: It includes a tank body with an opening at one end, a retaining ring installed on the inner circumferential surface of the tank body and a water baffle plate used to cooperate with the retaining ring to resist, the water baffle plate is installed in the tank body, the water baffle plate is located above the retaining ring, and the water baffle plate divides the tank body into a water storage chamber and a negative pressure chamber; the cold source generating device also includes a first elastic member for elastically pulling the water baffle plate, a piston installed in the negative pressure chamber, a driving unit for driving the piston to reciprocate along the length direction of the tank body, an exhaust pipe connected to the negative pressure chamber and a valve unit for controlling the conduction or disconnection of the exhaust pipe; the first elastic member is arranged in the water storage chamber, one end of the first elastic member is connected to the water baffle plate, the other end of the first elastic member is connected to the tank body, the driving unit is connected to the piston, and the valve unit is installed on the exhaust pipe; wherein, the first elastic member is a spring.

2. The cold source generating device according to claim 1, characterized in that: The tank body, the retaining ring, the water retaining plate, the first elastic member, the piston, the exhaust pipe and the valve unit are combined into an air supply unit, and there are multiple air supply units, and the water storage chambers of multiple tank bodies are connected; the driving unit includes a crankshaft, a piston rod connecting each of the pistons to the crankshaft, and a driving member for driving the crankshaft to rotate so that two adjacent pistons alternately reciprocate; one end of each of the piston rods is hinged to the crankshaft, and the other end of each of the piston rods is hinged to the corresponding piston, and the driving member is connected to the crankshaft.

3. The cold source generating device according to claim 2, characterized in that: The driving unit further comprises a driven gear mounted on the crankshaft and a driving gear meshed with the driven gear, and the driving member is connected to the driving gear.

4. The cold source generating device according to claim 1, characterized in that: The cold source generating device also includes a water tank, a water pipe connecting the water tank and the water storage chamber, and a control unit for controlling the connection or disconnection of the water pipe; the control unit is installed on the water pipe, and the control unit is arranged in the water storage chamber.

5. The cold source generating device according to claim 4, characterized in that: The control unit includes a shell, a rotating seat rotatably installed in the shell, a swing rod connected to the rotating seat at one end, and a floating plate connected to the other end of the swing rod; a water inlet pipe connected to the water pipe is installed at one end of the shell, and a water outlet pipe connected to the water storage chamber is installed at the other end of the shell; a connecting channel for controlling the connection or disconnection of the water inlet pipe and the water outlet pipe is provided on the rotating seat; the swing rod extends out of the shell, and a swing channel for the swing rod to swing is provided on the shell.

6. The cold source generating device according to any one of claims 1 to 5, characterized in that: The valve unit includes a valve body connecting the exhaust pipe and the negative pressure chamber, a valve core installed in the valve body, and a second elastic member for elastically driving the valve core to move so as to connect or disconnect the negative pressure chamber and the exhaust pipe; one end of the second elastic member abuts against the valve core, and the other end of the second elastic member abuts against the valve body.

7. The cold source generating device according to any one of claims 1 to 5, characterized in that: The side surface of the piston facing the retaining ring is a first inclined surface, the retaining ring is correspondingly provided with a second inclined surface matching the first inclined surface, and the water retaining plate is correspondingly provided with a third inclined surface matching the second inclined surface.

8. The cold source generating device according to any one of claims 1 to 5, characterized in that: The cold source generating device also includes a heat exchange plate installed at the bottom of the tank body.

9. The cold source generating device according to any one of claims 1 to 5, characterized in that: The cold source generating device also includes a sealing ring filling the gap between the inner peripheral surface of the tank body and the piston.

10. Refrigeration equipment, characterized in that: It comprises a cold source generating device as described in any one of claims 1 to 9.

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