Cold storage type bubble water machine and control method thereof

Abstract

The invention relates to a cold storage type bubble water machine and a control method thereof.The cold storage type bubble water machine comprises a machine body, a control system and a refrigerating system, a cold storage water tank, a steam-water mixing inner container, an evaporation coil and a cold water coil are arranged in the machine body, and a cold water cavity is formed in an inner cavity of the cold storage water tank; the steam-water mixing inner container, the evaporation coil pipe and the cold water coil pipe are arranged in the cold storage water tank and are soaked in the cold storage liquid for mutual heat exchange; the wall body of the steam-water mixing inner container is a heat conduction wall body, the water outlet end of the steam-water mixing inner container is connected with the water taking nozzle, and the air inlet end of the steam-water mixing inner container is connected with the air source. The steam-water mixing inner container and the cold water coil exchange heat with cold water in the cold storage liquid, on one hand, the cooling efficiency of drinking water can be improved, on the other hand, the whole steam-water mixing inner container can be in a low-temperature state, and the gas content in water is richer.

Description

Technical Field

[0001] The invention relates to the field of bubble water machines, and in particular to a cold storage type bubble water machine and a control method thereof. Background Art

[0002] The sparkling water machine is a kind of sparkling water making machine commonly used in major stores. The traditional sparkling water making machine directly connects the pressure tank with the carbon dioxide tank, so as to keep the pressure tank in a high pressure state for a long time, and then injects water into the pressure tank when sparkling water needs to be made, so that the water and carbon dioxide are mixed to form sparkling water. After the sparkling water is made, the water outlet tap is opened to make the sparkling water directly squeezed out under the high-pressure carbon dioxide gas. When water and carbon dioxide gas are mixed at normal temperature, the soda mixing efficiency is low, so the sparkling water machine needs to be further improved. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned existing problems and provide a simple and reasonable cold storage type sparkling water machine and a control method thereof.

[0004] A cold storage type sparkling water machine comprises a machine body and a control system. The machine body is provided with a refrigeration system and a water inlet nozzle. A cold storage water tank, a soda-water mixing tank, and an evaporating coil and a cold water coil which are repeatedly wound and formed are arranged in the machine body. The inner cavity of the cold storage water tank forms a cold water cavity for storing cold storage liquid. The soda-water mixing tank, the evaporating coil and the cold water coil are arranged in the cold storage water tank and immersed in the cold storage liquid to exchange heat with each other. The evaporating coil is connected in series to the refrigeration system. One end of the cold water coil is connected to a water source, and the other end is connected to a water inlet end of the soda-water mixing tank. The wall of the soda-water mixing tank is a heat-conducting wall. The water outlet end of the soda-water mixing tank is connected to the water inlet nozzle, and the air inlet end of the soda-water mixing tank is connected to an air source.

[0005] The purpose of the present invention can also be solved by the following technical measures: As a more specific solution, a fluid disturbance device is provided on the machine body or the cold storage water tank, and a disturbance structure for causing the cold storage liquid to flow is transmission-connected to the fluid disturbance device; the fluid disturbance device is a circulating water pump or a stirring motor.

[0006] As a further solution, the top wall of the soda mixing tank is connected to a bubble water outlet pipe, the extended portion of the bubble water outlet pipe forms a water outlet end, and the inserted portion of the bubble water outlet pipe is close to the bottom wall of the soda mixing tank.

[0007] As a further solution, the water inlet and air inlet of the soda mixing tank are both opened on its top wall, and an air pressure switch is provided between the air inlet and the air source, the water inlet is connected to an atomizing nozzle placed in the soda mixing tank, and a one-way valve is provided between the water inlet and the cold water coil.

[0008] As a further solution, it also includes a first temperature sensor and a second temperature sensor electrically connected to the control system, wherein the first temperature sensor and the second temperature sensor are arranged in the cold storage water tank and are arranged away from each other.

[0009] As a further solution, it also includes an inner tank water level detector and a water tank water level detector electrically connected to the control system. The top wall of the soda mixing inner tank is provided with a water level detection port for installing the inner tank water level detector. The water tank water level detector is installed on the cold water tank and extends into the cold water cavity.

[0010] As a further solution, a water supply valve and a main water inlet valve electrically connected to the control system are also provided in the body; the water inlet end of the main water inlet valve is connected to a water source, and the water outlet end of the main water inlet valve is connected to a port of the cold water coil; the water inlet end of the water supply valve is connected to the water source, and the water outlet end of the water supply valve is connected to a water supply pipe extending to the cold water chamber.

[0011] As a further solution, a booster pump electrically connected to the control system is also provided in the body, the water inlet end of the booster pump is connected to the water outlet end of the main water inlet valve, and the water outlet end of the booster pump is connected to a port of the cold water coil.

[0012] As a further solution, the evaporator coil and the cold water coil are both spirally arranged along a horizontal plane to form a planar zigzag structure with one or more layers arranged up and down, wherein one of the evaporator coil and the cold water coil is arranged at the upper part of the cold water chamber, and the other of the evaporator coil and the cold water coil is arranged at the lower part of the cold water chamber; Alternatively, the evaporating coil and the cold water coil are spirally wound in the height direction to form one or more layers of a sleeve-like structure arranged inside and outside, wherein one of the evaporating coil and the cold water coil is sleeved on the outer circumference of the other.

[0013] As a further solution, the water intake nozzle includes a bubble water intake nozzle and a cold water intake nozzle; two groups of disinfection sterilizers and two groups of water intake solenoid valves electrically connected to the control system are also provided in the machine body; One set of water solenoid valves and one set of disinfectors are connected in series between the water outlet of the soda mixing tank and the bubble water inlet nozzle; another set of water solenoid valves and another set of disinfectors are connected in series between the cold water coil and the cold water inlet nozzle.

[0014] A control method for a cold storage type sparkling water machine comprises the following steps: S1, the purified water source flows into the cold storage water tank through the water inlet of the machine body, and the water inlet is stopped after the water level reaches the set height, and the steam-water mixing tank, evaporation coil and cold water coil are immersed in the cold storage liquid; S2. After the cold storage water tank is full, the refrigeration system starts to use the evaporating coil to start cooling until the water temperature in the cold storage water tank reaches the set temperature and then stops cooling; S3. After the cold storage water tank is full of water, the refrigeration is started, and the clean water is injected into the soda-water mixing tank after passing through the cold water coil. At the same time, the air valve opens the air source, and carbon dioxide gas is injected into the soda-water mixing tank synchronously. The clean water and carbon dioxide gas are mixed in the soda-water mixing tank. When the detected water level in the soda-water mixing tank reaches the set height, the water intake is stopped; S4. When the water temperature in the cold water storage tank reaches a certain value, ice bubble water or ice water can be used; When taking iced sparkling water, the sparkling water flows out from the soda mixing tank. At the same time, when the soda mixing tank detects that the water level drops, the water inlet circulation of the soda mixing tank is turned on. The purified water enters the soda mixing tank after rapid heat exchange through the cold water coil. When ice water is used, the clean water flows out directly after heat exchange with the cold water in the cold water storage tank through the cold water coil; S5. The fluid disturbance device works continuously in the cooling state, works in the water intake state, and starts working through the high and low temperature difference in the cold storage water tank in the standby state.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a cold storage type sparkling water machine and a control method thereof. This cold storage type sparkling water machine immerses a soda-water mixing tank in a cold storage liquid formed by pure water, so that the soda-water mixing tank exchanges heat with the cold water in the cold storage liquid. On the one hand, the efficiency of cooling drinking water can be improved, and on the other hand, the entire soda-water mixing tank can be kept in a low temperature state, so that the gas content in the water is richer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the machine body structure in the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the machine body in the present invention (side view).

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the machine body in the present invention (front side).

[0019] Figure 4 It is a schematic diagram of the local structures of the machine body in the present invention.

[0020] Figure 5 It is a schematic diagram of the coordination structure of the evaporating coil, the cold water coil and the soda-water mixing tank in the present invention.

[0021] Figure 6 It is a schematic cross-sectional structure diagram of an embodiment of the evaporating coil and the cold water coil in the present invention.

[0022] Figure 7 It is a schematic structural diagram of another embodiment of the evaporating coil and the cold water coil in the present invention.

[0023] Figure 8 It is a schematic structural diagram of another embodiment of the fluid disturbance device of the present invention.

[0024] Fig. 9 It is a structural schematic diagram of the control box in the open state in the present invention.

[0025] Fig.10 This is a schematic structural diagram of the control box in the open state from another angle in the present invention.

[0026] Fig.11 It is a schematic diagram of the cross-sectional structure of the control box in the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] See also Figures 1 to 7 As shown, a cold storage type sparkling water machine comprises a body 1 and a control system 2, the body 1 is provided with a refrigeration system 3 and a water inlet nozzle, the body 1 is provided with a cold storage water tank 5, a soda-water mixing tank 8, and an evaporating coil 6 and a cold water coil 7 which are repeatedly wound and formed, the inner cavity of the cold storage water tank 5 forms a cold water cavity 501 for storing cold storage liquid; the soda-water mixing tank 8, the evaporating coil 6 and the cold water coil 7 are arranged in the cold storage water tank 5, and are immersed in the cold storage liquid to exchange heat with each other; the evaporating coil 6 is connected in series to the refrigeration system 3, one end of the cold water coil 7 is connected to a water source W, and the other end is connected to a water inlet end 83 of the soda-water mixing tank 8, the wall of the soda-water mixing tank 8 is a heat-conducting wall, and the water outlet end of the soda-water mixing tank 8 is connected to the water inlet nozzle, and the air inlet end 82 of the soda-water mixing tank 8 is connected to an air source G.

[0029] This cold storage type sparkling water machine immerses the soda mixing tank 8 in a cold storage liquid formed by pure water, so that the soda mixing tank 8 exchanges heat with the cold water in the cold storage liquid. On the one hand, it can improve the efficiency of drinking water cooling and continuously provide sufficient ice water or ice sparkling water within a certain period of time. On the other hand, it can keep the entire soda mixing tank in a low temperature state, making the water richer in gas content.

[0030] The machine body 1 or the cold storage water tank 5 is provided with a fluid disturbance device, and the fluid disturbance device is transmission-connected with a disturbance structure for causing the cold storage liquid to flow; In this embodiment, specifically Figure 2 As shown, the fluid disturbance device is a stirring motor 10, which is installed on either side of the cold water storage tank 5, and its output shaft extends into the cold water chamber 501 and is connected to a stirring paddle 1001, and the stirring paddle 1001 constitutes a disturbance structure.

[0031] When the stirring motor 10 is working, the stirring paddle 1001 is driven to rotate in the cold storage liquid, so that the cold storage liquid in the cold water tank 5 is in motion, maintaining the water temperature at various locations in the cold water tank 5 balanced, and can improve the cooling efficiency of drinking water and prevent ice from forming; the function of the stirring motor 10 and the stirring paddle 1001 is to keep the water in various areas of the cold water tank 5 consistent, so that the cold released by the evaporating coil 6 can be effectively absorbed by the cold water coil 7, and the speed of the stirring motor 10 can be controlled by the control system 2 (combined with the upper and lower temperature differences).

[0032] In other embodiments, Figure 2 As shown, the fluid disturbance device is a circulating water pump 9, and the impeller 91 in the circulating water pump 9 constitutes a disturbance structure; the cold storage water tank 5 is provided with a water outlet 502 and a water inlet 503 connected to the cold water chamber 501, the pumping end of the circulating water pump 9 is connected to the water outlet 502, and its water outlet end is connected to the water inlet 503; after the cold storage liquid in the cold water chamber 501 is pumped away by the circulating water pump 9, it is discharged into the cold water chamber 501 again, so that the cold storage liquid can flow, thereby achieving water temperature balance.

[0033] The water outlet 502 and the water inlet 503 can be opened on the same wall of the cold storage water tank 5 at upper and lower positions, or at left and right positions, or respectively opened on the walls on opposite sides of the cold storage water tank 5, so as to maximize the flow effect of the cold storage liquid.

[0034] The top wall of the soda mixing tank 8 is connected with a bubble water outlet pipe 81, the protruding part of the bubble water outlet pipe 81 forms a water outlet end, the inserted part of the bubble water outlet pipe 81 is close to the bottom wall of the soda mixing tank 8, and a pressure relief valve 29 is also provided on the water outlet end of the bubble water outlet pipe 81, and the pressure relief valve 29 can prevent the soda mixing tank 8 from exploding due to excessive pressure.

[0035] The water inlet end 83 and the air inlet end 82 of the soda-water mixing liner 8 are both provided on the top wall thereof, and an air pressure switch 11 is provided between the air inlet end 82 and the air source G, and an air valve 27 capable of opening and closing the air pipe is provided in the air pipe between the air source G and the air inlet 72, and the air valve 27 can open or close the air source G according to the pressure of the soda-water mixing liner 8; The water inlet end 83 of the soda mixing liner 8 is connected to an atomizing nozzle 85 placed in the soda mixing liner 8. The purified water is sprayed into the soda mixing liner 8 in a water mist state through the atomizing nozzle 85, so as to be better mixed with the carbon dioxide. A one-way valve 12 is provided between the water inlet end 83 and the cold water coil 7 , and the one-way valve 12 prevents the gas or water in the soda-water mixing tank 8 from flowing back when the soda-water mixing tank 8 is not pressurized by the booster pump 19 .

[0036] The first temperature sensor 13 and the second temperature sensor 14 are electrically connected to the control system 2 . The first temperature sensor 13 and the second temperature sensor 14 are arranged in the cold storage water tank 5 and are arranged away from each other.

[0037] At least two temperature sensors are arranged in the cold storage water tank 5, namely the first temperature sensor 13 and the second temperature sensor 14. The first temperature sensor 13 and the second temperature sensor 14 can be arranged at high and low positions, or at left and right positions, or at opposite sides. When the temperature difference between the two temperature sensors exceeds the set range, the control system 2 drives the stirring motor 10 or the circulating water pump 9 in this embodiment to work until the temperature difference reaches within the preset range, thereby achieving water temperature balance.

[0038] It also includes an inner tank water level detector 15 and a water tank water level detector 16 electrically connected to the control system 2. The top wall of the soda mixing inner tank 8 is provided with a water level detection port 84 for installing the inner tank water level detector 15. The water tank water level detector 16 is installed on the cold water tank 5 and extends into the cold water chamber 501.

[0039] The body 1 is also provided with a water supply valve 17 and a main water inlet valve 18 electrically connected to the control system 2; the water inlet end of the main water inlet valve 18 is connected to the water source W, and the water outlet end of the main water inlet valve 18 is connected to a port of the cold water coil 7; the water inlet end of the water supply valve 17 is connected to the water source W, and the water outlet end of the water supply valve 17 is connected to a water supply pipe 171 extending to the cold water chamber 501; When the water level detector detects that the water level in the cold water tank 5 is too low, the water replenishment valve 17 is activated, and the water replenishment valve 17 opens the water source to replenish water into the cold water chamber 501 to ensure that the evaporation coil 6 and the cold water coil 7 are completely immersed in water.

[0040] The body 1 is also provided with a booster pump 19 electrically connected to the control system 2, the water inlet end of the booster pump 19 is connected to the water outlet end of the main water inlet valve 18, and the water outlet end of the booster pump 19 is connected to one end of the cold water coil 7; the pressure and flow rate of the booster pump 19 determine the flow rate of the bubble water outlet, if the pressure is too low, the water cannot enter the soda tank due to the large resistance of the atomizing nozzle and the air pressure in the soda mixing tank 8, and if the pressure is too high, it affects the safety and durability of the soda mixing tank 8 and the connecting pipeline.

[0041] A mounting support plate 53 is connected to the box opening of the cold water storage tank 5, the stirring motor 10 is fixedly connected to the mounting support plate 53, and the stirring paddle 1001 on the output shaft is arranged in the middle position of the cold water chamber 501; the mounting support plate 53 is used to make the stirring paddle 1001 be located in the middle position of the cold water chamber 501, so that the cold storage liquid in the entire cold water chamber 501 can be evenly disturbed, and in this embodiment, the soda-water mixing tank 8, the first temperature sensor 13, the second temperature sensor 14, the main water inlet valve 18 and the water supply valve 17 are simultaneously installed on the mounting support plate 53 for easy assembly and disassembly.

[0042] The cold storage water tank 5 includes a box-shaped liner 51, which defines a cold water chamber 501, and the surrounding side walls and the bottom wall of the inner tank 51 are connected to thermal insulation cotton 52; the cold storage water tank 5 with this structure can improve the thermal insulation capacity and reduce the water in the cold storage water tank 5 absorbing external heat.

[0043] See also Figure 5 and Figure 6 As shown, the evaporator coil 6 and the cold water coil 7 are both spirally arranged along the horizontal plane to form one or more layers of a planar zigzag structure arranged up and down, and the evaporator coil 6 and the cold water coil 7 are arranged around the outer periphery of the soda-water mixing tank 8, wherein one of the evaporator coil 6 and the cold water coil 7 is arranged at the upper part of the cold water chamber 501, and the other of the evaporator coil 6 and the cold water coil 7 is arranged at the lower part of the cold water chamber 501; the evaporator coil 6 and the cold water coil 7 of this structure can make full use of the space of the cold water chamber 501, increase the length of the pipeline, and improve the heat exchange efficiency, and in this embodiment, the body 1 is a square structure, so the evaporator coil 6 and the cold water coil 7 are also wound into a square planar zigzag structure In addition, a plurality of pipe fixing frames 23 are evenly distributed in the cold water chamber 501, and the plurality of pipe fixing frames 23 are fixedly connected to the cold water storage tank 5, and a plurality of pipe supporting surfaces 231 for supporting the evaporation coil 6 or the cold water coil 7 are arranged along the height direction on the pipe fixing frames 23; the pipe fixing frames 23 are used to maintain a stable interval between the pipe sections of the evaporation coil 6 and the cold water coil 7, so that the evaporation coil 6 and the cold water coil 7 can be suspended in the middle position of the cold water chamber 501.

[0044] According to the above-mentioned structure of the evaporator coil 6 and the cold water coil 7, the pipe fixing frame 23 includes two pairs of support columns 232, and two support beams 233 are connected between each pair of support columns 232. The two support beams 233 are used to connect the two support columns 232, and their top surfaces also form a pipe supporting surface 231. In addition, the support columns 232 are also connected along the height direction with a limiting beam 234 arranged on the upper side of the supporting beam 233, and the evaporator coil 6 or the cold water coil 7 is limited between the limiting beam 234 and the supporting beam 233.

[0045] In other embodiments, see Figure 7 As shown, the evaporator coil 6 and the cold water coil 7 are spirally wound in the height direction to form one or more layers of a sleeve-like cage structure arranged inside and outside, and the evaporator coil 6 is arranged around the outer periphery of the soda-water mixing tank 8, and the cold water coil 7 is sleeved on the outer periphery of the evaporator coil 6; and when the machine body 1 is a square structure, the evaporator coil 6 and the cold water coil 7 are also wound into a square sleeve-like cage structure.

[0046] Based on the above-mentioned structure of the evaporating coil 6 and the cold water coil 7, the pipe fixing frame 23 includes two pairs of support columns 231, each support column 231 is an angle iron structure, and a plurality of bayonet holes 235 are opened at the corner position along the height direction, and the bottom surface of the bayonet hole 235 forms a pipe supporting surface 231, and the evaporating coil 6 and the cold water coil 7 are bayoneted in the bayonet hole 235.

[0047] The water inlet nozzles include a bubble water inlet nozzle 41 and a cold water inlet nozzle 42; the body 1 is also provided with two groups of disinfection sterilizers 20 and two groups of water inlet solenoid valves 21 electrically connected to the control system 2; One set of water intake solenoid valves 21 and one set of disinfection and sterilization devices 20 are connected in series between the water outlet end of the soda mixing tank 8 and the bubble water intake nozzle 41; another set of water intake solenoid valves 21 and another set of disinfection and sterilization devices 20 are connected in series between the cold water coil 7 and the cold water intake nozzle 42.

[0048] In addition, a throttle tube 28 is used to connect the water outlet end of the soda mixing tank 8 and the bubble water intake nozzle 41. The flow rate of the bubble water outlet is adjusted by the length of the throttle tube 28 so that the water outlet flow rate is proportional to the flow rate of the booster pump entering the soda mixing tank 8, thereby ensuring sustainable water outlet without jetting.

[0049] When the user needs cooled drinking water or sparkling drinking water, after starting the water intake solenoid valve 21, the cooled drinking water or sparkling drinking water flows out from the cold water intake nozzle 42 or the sparkling water intake nozzle 41, and passes through the disinfection sterilizer 20 during the outflow process. The disinfection sterilizer 20 uses LED deep ultraviolet flow sterilization to disinfect and sterilize the cooled drinking water, thereby ensuring the safety of the cooled drinking water and improving the hygiene level.

[0050] The body 1 includes a sheet metal shell 101, and a partition plate 102 is arranged in the sheet metal shell 101. The partition plate 102 divides the inner cavity of the sheet metal shell 101 into an upper chamber 103 and a lower chamber 104. The control system 2, the refrigeration system 3 and the booster pump 19 are arranged in the lower chamber 104, and the cold water tank 5 is arranged in the upper chamber 103. The cold water tank 5 for storing water and the refrigeration system 3 for electricity are separated to ensure the safety of electricity use and prevent the cold water tank 5 from leaking water in case of a water leakage accident.

[0051] An electric control housing 105 is provided on the front side of the sheet metal housing 101 , and a main control panel and a display screen 106 are provided on the electric control housing 105 , and the two groups of water intake solenoid valves 21 and the disinfection and sterilization device 20 are installed in the electric control housing.

[0052] In addition, a plurality of casters 22 are connected to the bottom of the sheet metal housing 101 ; the casters 22 facilitate the movement of the machine body 1 .

[0053] The refrigeration system 3 also includes a compressor 31, a condenser 32 and a throttling device that are connected to each other. A cooling fan 33 is provided on one side of the condenser 32. One end of the evaporation coil 66 is connected to the compressor 31, and the other end is connected to the condenser 32. The structure of the refrigeration system 3 belongs to conventional technology, and its structure and principle are not elaborated in detail here.

[0054] The front side of the sheet metal housing 101 is connected to a control box 24, the water inlet solenoid valve 21 and the disinfection sterilizer 20 are accommodated in the control box 24, and the bubble water inlet nozzle 41 and the cold water inlet nozzle 42 are fixed to the bottom surface of the control box 24; Among them, see Fig. 9 and Fig.10 As shown, the control box 24 includes a box body 25 fixedly connected to the sheet metal shell 101, and a semi-open opening 241 is provided on the box body 25. The box body 25 is connected to an L-shaped box cover 26 that can open or close the opening 241; the openable control box 24 facilitates the inspection and maintenance of structures such as the disinfection and sterilization device 11 and the water intake solenoid valve 12.

[0055] The box body 25 is provided with a hinge seat 251 at the bottom, and a hinge shaft slot 252 extending along the front-to-back direction of the box body is provided on the hinge seat 251, and the hinge shaft slot 252 includes an open position at the front end and a closed position at the rear end. An L-shaped connecting plate 261 is fixedly provided at the bottom of the front end wall 26a of the L-shaped box cover 26, and a hinge shaft 262 slidably matched with the hinge shaft slot 252 is provided on the L-shaped connecting plate 261. A clamping ear 263 is fixedly provided at the rear of the top end wall 26b of the L-shaped box cover 26, and a clamping mouth is formed between the clamping ear 263 and the top end wall 26b. In addition, a connecting through hole 253 is provided on the left side wall and / or the right side wall of the box body 25, and a locking plate 264 is connected to the L-shaped box cover 26. The locking plate 264 has a threaded hole 265 corresponding to the connecting through hole 253. Bolts are passed through the connecting through hole 253 and the threaded hole 265 to fasten the L-shaped box cover 26 to the box body 25 to close the open mouth 241.

[0056] The method of opening or closing the L-shaped cover 26 of the control box 24 of the above structure is as follows: When opening, first loosen the bolts to release the locking connection between the L-shaped box cover 26 and the box body 25, then pull the L-shaped box cover 26 to slide forward, so that the hinge shaft 262 slides forward from the closed position of the hinge shaft slide groove 252 to the open position, and finally flip the L-shaped box cover 26 forward with the hinge shaft 262 as the central axis, so as to open the opening 241; Similarly, when closing, the L-shaped box cover 26 is flipped backward with the hinge shaft 262 as the central axis, and the top wall 26b of the L-shaped box cover 26 is covered on the open mouth 241, but the front end wall 26a is spaced from the open mouth 241 (such as Fig.11 As shown), the L-shaped box cover 26 is then pushed backward to slide, so that the hinge shaft 262 slides backward from the open position of the hinge shaft slide groove 252 to the closed position. At this time, the L-shaped box cover 26 completely closes the open opening 241, and the threaded hole 265 on the L-shaped box cover 26 is aligned with the connecting through hole 253. Finally, the bolt is screwed in to pass through the connecting through hole 253 and the threaded hole 265 to complete the closing of the L-shaped box cover 26.

[0057] In addition, a display screen 106 is also provided on the front end wall 26 a of the L-shaped box cover 26 .

[0058] In combination with the above structure, the control method applied to the cold storage type sparkling water machine includes the following steps: S1, the purified water source W (a mineral filter element is configured at the water inlet to produce soda water) flows into the cold storage water tank 5 through the water inlet of the machine body 1, and after the water level detector 16 detects that the water level reaches the set height, the water replenishment valve 17 is closed, the water inlet is stopped, and the soda-water mixing tank 8, the evaporating coil 6 and the cold water coil 7 are immersed in the cold storage liquid; S2, after the cold storage water tank 5 is full of water, the refrigeration system 3 starts to use the evaporating coil 6 to start cooling, and stops cooling after the first temperature sensor 13 and the second temperature sensor 14 detect that the water temperature in the cold storage water tank 5 reaches the set temperature (when stopping cooling, the compressor 31 stops first, and the cooling fan 33 stops after a delay of 1 minute); S3, after the cold storage water tank 5 is full of water, the refrigeration is started, and the main water inlet valve 18 and the booster pump 19 are opened, and the clean water passes through the cold water coil 7 and then is injected into the soda-water mixing tank 8, and at the same time, the air valve opens the gas source G (the gas directly enters in the state without the air valve), and carbon dioxide gas is synchronously injected into the soda-water mixing tank 8, and the clean water and carbon dioxide gas are mixed in the soda-water mixing tank 8 after passing through the water inlet atomizing nozzle and the air intake device, and the water intake is stopped when the inner tank water level detector 15 in the soda-water mixing tank 8 detects that the water level reaches the set height, and the air valve is closed after a delay of 1 minute (the gas is always under pressure in the soda-water mixing tank 8 when there is no air valve); S4, when the water temperature in the cold storage water tank 5 reaches a certain value, ice bubble water or ice water can be taken; When taking iced sparkling water, the water inlet solenoid valve 21 and the disinfection sterilizer 20 corresponding to the sparkling water inlet nozzle 41 are opened at the same time, and the sparkling water flows out from the soda mixing tank 8. At the same time, when the inner tank water level detector 15 in the soda mixing tank 8 detects that the water level drops, the water inlet circulation of the soda mixing tank 8 is turned on. After the purified water passes through the cold water coil 7 for rapid heat exchange (the temperature of the water entering the soda mixing tank 8 is consistent with that in the cold water storage tank 5), it enters the soda mixing tank 8; When taking ice water, the main water inlet valve 18 and the water inlet solenoid valve 21 corresponding to the cold water inlet nozzle 42 and the disinfection sterilizer 20 are opened at the same time, and the purified water flows out directly after heat exchange with the cold water in the cold water storage tank 5 through the cold water coil 7. In addition, when the water inlet of the soda-water mixing tank 8 and the ice water outlet share the cold water coil 7, the two cannot be opened at the same time; S5. In the refrigeration state, the circulating water pump 9 or the stirring motor 10 continues to work; in the water intake state, the circulating water pump 9 or the stirring motor 10 works; in the standby state, the circulating water pump 9 or the stirring motor 10 is triggered to work by the temperature difference between the first temperature sensor 13 and the second temperature sensor 14 in the cold storage water tank 5.

[0059] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A cold storage type sparkling water machine, comprising a machine body (1) and a control system (2), wherein the machine body (1) is provided with a refrigeration system (3) and a water intake nozzle, characterized in that: The machine body (1) is provided with a cold water storage tank (5), a soda-water mixing tank (8), and an evaporating coil (6) and a cold water coil (7) which are repeatedly wound and formed; the inner cavity of the cold water storage tank (5) forms a cold water cavity (501) for storing cold liquid; the soda-water mixing tank (8), the evaporating coil (6), and the cold water coil (7) are arranged in the cold water storage tank (5) and immersed in the cold liquid for mutual heat exchange; the evaporating coil (6) is connected in series to the refrigeration system (3); one end of the cold water coil (7) is connected to a water source (W) and the other end is connected to a water inlet end (83) of the soda-water mixing tank (8); the wall of the soda-water mixing tank (8) is a heat-conducting wall; the water outlet end of the soda-water mixing tank (8) is connected to a water inlet nozzle; and the air inlet end (82) of the soda-water mixing tank (8) is connected to an air source (G).

2. The cold storage type sparkling water machine according to claim 1, characterized in that: The machine body (1) or the cold storage water tank (5) is provided with a fluid disturbance device, and a disturbance structure for causing the cold storage liquid to flow is transmission-connected to the fluid disturbance device; the fluid disturbance device is a circulating water pump (9) or a stirring motor (10).

3. The cold storage type sparkling water machine according to claim 1, characterized in that: The water inlet end (83) and the air inlet end (82) of the soda-water mixing tank (8) are both provided on the top wall thereof, and an air pressure switch (11) is provided between the air inlet end (82) and the air source (G); the water inlet end (83) is connected to an atomizing nozzle (85) disposed in the soda-water mixing tank (8); and a one-way valve (12) is provided between the water inlet end (83) and the cold water coil (7).

4. The cold storage type sparkling water machine according to claim 1, characterized in that: It also comprises a first temperature sensor (13) and a second temperature sensor (14) electrically connected to the control system (2); the first temperature sensor (13) and the second temperature sensor (14) are arranged in the cold storage water tank (5) and are arranged away from each other.

5. The cold storage type sparkling water machine according to claim 1, characterized in that: It also includes an inner tank water level detector (15) and a water tank water level detector (16) electrically connected to the control system (2); the top wall of the soda-water mixing inner tank (8) is provided with a water level detection port (84) for installing the inner tank water level detector (15); and the water tank water level detector (16) is installed on the cold water storage tank (5) and extends into the cold water chamber (501).

6. The cold storage type sparkling water machine according to claim 1, characterized in that: The machine body (1) is also provided with a water replenishment valve (17) and a main water inlet valve (18) which are electrically connected to the control system (2); the water inlet end of the main water inlet valve (18) is connected to a water source (W), and the water outlet end of the main water inlet valve (18) is connected to a port of the cold water coil (7); the water inlet end of the water replenishment valve (17) is connected to the water source (W), and the water outlet end of the water replenishment valve (17) is connected to a water replenishment pipe (171) extending into the cold water chamber (501).

7. The cold storage type sparkling water machine according to claim 6, characterized in that: The machine body (1) is also provided with a booster pump (19) electrically connected to the control system (2); the water inlet end of the booster pump (19) is connected to the water outlet end of the main water inlet valve (18); and the water outlet end of the booster pump (19) is connected to one end of the cold water coil (7).

8. The cold storage type sparkling water machine according to claim 1, characterized in that: The evaporating coil (6) and the cold water coil (7) are both spirally arranged along a horizontal plane to form one or more layers of planar zigzag structures arranged up and down, wherein one of the evaporating coil (6) and the cold water coil (7) is arranged at the upper part of the cold water chamber (501), and the other of the evaporating coil (6) and the cold water coil (7) is arranged at the lower part of the cold water chamber (501); Alternatively, the evaporating coil (6) and the cold water coil (7) are spirally wound in the height direction to form one or more layers of a sleeve-like cage structure arranged inside and outside, wherein one of the evaporating coil (6) and the cold water coil (7) is sleeved on the outer circumference of the other.

9. The cold storage type sparkling water machine according to claim 1, characterized in that: The water intake nozzles include a bubble water intake nozzle (41) and a cold water intake nozzle (42); two groups of disinfection sterilizers (20) and two groups of water intake solenoid valves (21) electrically connected to the control system (2) are also arranged in the machine body (1); One set of water intake solenoid valves (21) and one set of disinfection and sterilization devices (20) are connected in series between the water outlet end of the soda mixing tank (8) and the bubble water intake nozzle (41); another set of water intake solenoid valves (21) and another set of disinfection and sterilization devices (20) are connected in series between the cold water coil (7) and the cold water intake nozzle (42).

10. A control method for a cold storage type sparkling water machine, characterized in that: The cold storage type sparkling water machine as claimed in claim 2 comprises the following steps: S1, the purified water source (W) flows into the cold storage water tank (5) through the water inlet of the machine body (1), and the water inlet is stopped after the water level reaches a set height, and the steam-water mixing tank (8), the evaporating coil (6) and the cold water coil (7) are immersed in the cold storage liquid; S2, after the cold storage water tank (5) is full of water, the refrigeration system (3) starts to use the evaporating coil (6) to start refrigeration until the water temperature in the cold storage water tank (5) reaches the set temperature and then stops refrigeration; S3, after the cold storage water tank (5) is full of water, refrigeration is started, and the clean water passes through the cold water coil (7) and then is injected into the soda-water mixing tank (8). At the same time, the air valve opens the air source (G) and carbon dioxide gas is injected into the soda-water mixing tank (8). The clean water and carbon dioxide gas are mixed in the soda-water mixing tank (8). When the water level in the soda-water mixing tank (8) reaches the set height, the water intake is stopped; S4. When the water temperature in the cold water storage tank (5) reaches a certain value, ice bubble water or ice water can be used; When the iced sparkling water is taken, the sparkling water flows out from the soda mixing tank (8). At the same time, when the soda mixing tank (8) detects that the water level has dropped, the water inlet circulation of the soda mixing tank (8) is turned on. The purified water passes through the cold water coil (7) and then enters the soda mixing tank (8) after rapid heat exchange. When ice water is used, the purified water passes through the cold water coil (7) and exchanges heat with the cold water in the cold water storage tank (5) before flowing out directly; S5. The fluid disturbance device works continuously in the cooling state, works in the water intake state, and starts working through the high and low temperature difference in the cold storage water tank in the standby state.

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