Ice pouring device without ice paint

Abstract

The invention discloses an ice-making device without ice paint. Carbon dioxide flows out of a carbon dioxide storage tank and is subjected to heat exchange by a supercooling heat exchanger. Part of the released cold is absorbed and then enters a carbon dioxide mixing tank through a flow regulating valve. After the tap water is pressurized by a booster pump, it is opened by an electric valve B and enters the carbon dioxide mixing tank to mix with carbon dioxide. It is sent to an evaporator through a cooling circulation pump and cooled by a carbon dioxide refrigerant. After cooling, it returns to the carbon dioxide mixing tank. Hot water can be produced while producing ice-making water, and the hot water can be used by an ice-making vehicle, thereby reducing the energy consumed in producing hot water. The natural refrigerant carbon dioxide is used, which is environmentally friendly and has a high refrigeration efficiency. At the same time, the heat of the air cooler is recovered, so that the operation efficiency of the entire system reaches the highest level.

Description

Technical Field

[0001] The invention relates to the field of refrigeration and air-conditioning industry, and in particular to an ice pouring device free of ice paint. Background Art

[0002] Ice cubes are mixed with a lot of air bubbles during the natural formation process. The white ice surface helps reflect light, allowing people to better observe the objects moving on the ice surface. Curling and ice hockey games have moved from outdoor to indoor, and people have begun to imitate nature to create better ice surfaces, remove air bubbles in the ice layer, and apply white ice paint, which eventually leads to the white field we see.

[0003] After the condensing agent is continuously filled into the ice making pipe, the temperature of the floor will drop rapidly. After the floor is pre-cooled, the basic ice can be made. Water without impurities and bubbles is poured layer by layer to form the basic ice surface. Because the water used is very clean, the ice surface reflects the color of the concrete floor.

[0004] The color of the concrete floor does not meet the requirements of the game, so the ice maker will evenly spray white ice paint on every corner of the venue as the background color. After completing this process, the ice hockey field will appear white. The white field can better reflect light, allowing athletes to better participate in the game.

[0005] At present, the use of ice paint in ice rink construction increases the initial investment of ice rink construction. The ice making method can meet the use requirements without using ice paint. The ice pouring method increases the concentration of carbon dioxide in the ice pouring water, generates a large number of bubbles during the freezing process, so that the ice rink appears white after the ice making is introduced to meet the use requirements. Summary of the invention

[0006] The purpose of the present invention is to provide an ice pouring device without ice paint to solve the above technical problems.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions:

[0008] An ice pouring device without ice paint, carbon dioxide flows out of a carbon dioxide storage tank, exchanges heat through a supercooling heat exchanger, releases part of the cold and is absorbed, and then enters a carbon dioxide mixing tank through a flow regulating valve; tap water is pressurized by a booster pump, and then enters the carbon dioxide mixing tank after being opened by an electric valve B to mix with carbon dioxide, and when the liquid level in the tank reaches a set liquid level, the electric valve B is closed, and in order to increase the solubility of carbon dioxide in water, the tap water mixed with carbon dioxide in the carbon dioxide mixing tank is further cooled, the electric valve C is opened, the electric valve D is closed, the electric valve A is opened, and the tap water is sent to the evaporator through a cooling circulation pump to be cooled by the carbon dioxide refrigerant, and then returns to the carbon dioxide mixing tank after cooling;

[0009] Carbon dioxide is used as a refrigeration cycle working fluid. It is compressed into a high-temperature and high-pressure state through carbon dioxide compression and discharged through the exhaust end into the gas cooler to exchange heat with tap water, which can heat the tap water temperature to the set temperature. Carbon dioxide is cooled into a liquid state and enters the gas separation heat recovery liquid storage tank through a constant pressure valve. The liquid carbon dioxide in the gas separation heat recovery tank absorbs the cold released by the carbon dioxide that has just flowed out of the carbon dioxide storage tank through a supercooling heat exchanger. After the carbon dioxide is cooled, it enters the electronic expansion valve to form a low-pressure and low-temperature gas-liquid mixed state, and then enters the evaporator to absorb the heat of the tap water that has been mixed with a part of the carbon dioxide to cool it down. After being cooled, it enters the carbon dioxide mixing tank. After the temperature is lowered, the solubility of carbon dioxide in water increases, and the carbon dioxide content in the water increases. The carbon dioxide in the low-pressure and low-temperature gas-liquid mixed state enters the evaporator to absorb heat and is vaporized, and then the liquid carbon dioxide is separated out through the gas separation heat recovery liquid storage tank and left in the container. The gaseous carbon dioxide enters the suction end of the carbon dioxide compressor and is further compressed to complete the cycle of carbon dioxide as a refrigeration cycle working fluid.

[0010] When the mixed concentration of carbon dioxide reaches the set requirement, the electric valve D is opened to send water dissolved with a large amount of carbon dioxide to the surface of the ice rink as ice water and as the basic ice surface of the ice rink.

[0011] Preferably, the tap water temperature can be heated to a set temperature within a temperature range of 40 to 95°C.

[0012] Compared with the prior art, the present invention has the following advantages: 1. Hot water can be produced while making ice-making water, and the hot water can be used by the ice-making vehicle, thereby reducing the energy consumed in making hot water.

[0013] 2. More carbon dioxide is dissolved in ordinary tap water, which increases the content of bubbles in the water. This water is used to make ice. The ice made in this way is closer to natural ice and the ice rink appears whiter in color, so there is no need to spray ice paint on the bottom of the ice rink.

[0014] 3. The circulating cooling uses natural refrigerant carbon dioxide, which is environmentally friendly and has high refrigeration efficiency. It also recovers the heat of the air cooler, making the entire system operate at the highest efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] In the figure: 1. Carbon dioxide storage tank; 2. Subcooling heat exchanger; 3. Flow regulating valve; 4. Carbon dioxide mixing tank; 5. Cooling circulation pump; 6. Carbon dioxide compressor; 7. Gas cooler; 8. Constant pressure valve; 9. Gas heat recovery liquid storage tank; 10. Electronic expansion valve; 11. Evaporator; 12. Booster pump; 13. Electric valve A; 14. Electric valve B; 15. Electric valve C; 16. Electric valve D. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, an ice pouring device without ice paint, carbon dioxide flows out from the carbon dioxide storage tank 1, passes through the subcooling heat exchanger 2 for heat exchange, releases part of the cold and is absorbed, and then enters the carbon dioxide mixing tank 4 through the flow regulating valve 3; the tap water is pressurized by the booster pump 12, and then enters the carbon dioxide mixing tank 4 after the electric valve B14 is opened to mix with the carbon dioxide. When the liquid level in the tank reaches the set liquid level, the electric valve B14 is closed. In order to increase the solubility of carbon dioxide in water, the tap water mixed with carbon dioxide in the carbon dioxide mixing tank 4 is further cooled, the electric valve C15 is opened, the electric valve D16 is closed, and the electric valve A13 is opened, and the tap water is sent to the evaporator 11 through the cooling circulation pump to cool it by the carbon dioxide refrigerant, and then returns to the carbon dioxide mixing tank 4 after cooling;

[0019] Carbon dioxide is compressed into a high-temperature and high-pressure state by the carbon dioxide compressor 6 as a refrigeration cycle working fluid and discharged through the exhaust end into the gas cooler 6 to exchange heat with tap water, which can heat the tap water temperature to the set temperature within the temperature range of 40~95℃.

[0020] The carbon dioxide is cooled to liquid state and enters the gas heat recovery liquid storage tank 9 through the constant pressure valve 8. The liquid carbon dioxide in the gas heat recovery liquid storage tank absorbs the cold released by the carbon dioxide just flowing out of the carbon dioxide storage tank 1 through the supercooling heat exchanger 2. After the carbon dioxide is cooled, it enters the electronic expansion valve 10 to form a low-pressure and low-temperature gas-liquid mixed state, and then enters the evaporator 11 to absorb the heat of the tap water that has been mixed with a part of the carbon dioxide to cool it down. After being cooled, it enters the carbon dioxide mixing tank 4. After the temperature is lowered, the solubility of carbon dioxide in water increases, and the carbon dioxide content in the water increases. The carbon dioxide in the low-pressure and low-temperature gas-liquid mixed state enters the evaporator 11 to absorb heat and is gasified, and then the liquid carbon dioxide is separated out and left in the container through the gas heat recovery liquid storage tank 9. The gaseous carbon dioxide enters the suction end 6 of the carbon dioxide compressor and is further compressed to complete the cycle of carbon dioxide as a refrigeration cycle working fluid;

[0021] When the carbon dioxide mixed concentration reaches the set requirement, the electric valve D16 is opened to send water dissolved with a large amount of carbon dioxide to the surface of the ice rink as ice water and as the basic ice surface of the ice rink.

[0022] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. An ice pouring device without ice paint, characterized in that: Carbon dioxide flows out of the carbon dioxide storage tank (1) and is subjected to heat exchange by the subcooling heat exchanger (2), and part of the released cold is absorbed, and then enters the carbon dioxide mixing tank (4) through the flow regulating valve (3); the tap water is pressurized by the booster pump (12), and then is opened by the electric valve B and enters the carbon dioxide mixing tank (4) to mix with the carbon dioxide. When the liquid level in the tank reaches the set liquid level, the electric valve B is closed, and the carbon dioxide mixing tank (4) is connected to the electric valve A (13) through a pipeline, and the electric valve A (13) is connected to the evaporator (11) through a pipeline. The water outlet of the carbon dioxide mixing tank (4) is connected to the electric valve A (13) through a pipeline. The electric valve C (15) is connected to the electric valve D (16), and the electric valve C (15) is connected to the evaporator (11) through a pipeline. A cooling circulation pump is provided between the pipeline connecting the electric valve C (15) and the evaporator (11). In order to increase the solubility of carbon dioxide in water, the tap water mixed with carbon dioxide in the carbon dioxide mixing tank (4) is further cooled. The electric valve C (15) is opened, the electric valve D (16) is closed, and the electric valve A (13) is opened. The tap water is sent to the evaporator (11) through the cooling circulation pump to be cooled by the carbon dioxide refrigerant, and then returns to the carbon dioxide mixing tank (4) after cooling. Carbon dioxide is compressed into a high-temperature and high-pressure state by a carbon dioxide compressor (6) as a refrigeration cycle working fluid, and is discharged through an exhaust port into a gas cooler (6) to exchange heat with tap water, so that the tap water temperature can be heated to a set temperature. Carbon dioxide is cooled into a liquid state, and enters a gas heat recovery liquid storage device (9) through a constant pressure valve (8). The liquid carbon dioxide in the gas heat recovery device absorbs the cold energy released by the carbon dioxide that has just flowed out of the carbon dioxide storage tank (1) through a subcooling heat exchanger (2). After the carbon dioxide is cooled, it enters an electronic expansion valve (10) to form a low-pressure and low-temperature gas-liquid mixed state. The carbon dioxide enters the evaporator (11) to absorb the heat of the tap water mixed with a portion of the carbon dioxide to cool it down. After being cooled, it enters the carbon dioxide mixing tank (4). The solubility of carbon dioxide in water increases after the temperature is reduced, so that the carbon dioxide content in the water increases. The carbon dioxide in the low-pressure and low-temperature gas-liquid mixed state enters the evaporator (11) to absorb heat and is vaporized. Then, the liquid carbon dioxide is separated from the gas separation heat recovery liquid storage device (9) and retained in the container. The gaseous carbon dioxide enters the suction end (6) of the carbon dioxide compressor to be further compressed, completing the cycle of carbon dioxide as a refrigeration cycle working fluid. When the mixed concentration of carbon dioxide reaches the set requirement, the electric valve D is opened to send water dissolved with a large amount of carbon dioxide to the surface of the ice rink as ice water and as the basic ice surface of the ice rink.

2. The ice pouring device for ice-free paint according to claim 1, characterized in that: It can heat the tap water to the set temperature, with the temperature range of 40~95℃.

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