Water purifier

Abstract

The utility model discloses a water purifier, and relates to the technical field of water treatment. Cooling the tank; the absorption refrigeration module comprises a liquid storage device, a generator, a condenser and an evaporator, the evaporator is arranged on the cold tank to refrigerate the cold tank, and the hot tank heats at least part of the generator so as to preheat a solution flowing through the generator; and the like. The generator of the absorption type refrigeration module can be preheated through waste heat of the heat tank, the starting time of the absorption type refrigeration module is shortened, the starting speed of absorption type refrigeration is increased, and the environment-friendly refrigeration effects of being free of noise, low in energy consumption and long in service life are achieved.

Description

Technical Field

[0001] This utility model relates to a water purifier, and more particularly to a water purifier that uses absorption refrigeration. Background Technology

[0002] As people's living standards improve, their demands for drinking water quality are also increasing. Traditional water purifiers are relatively simple in function, often only providing basic filtration and failing to meet users' needs for drinking water at different temperatures. Some water purifiers with heating and cooling functions have high energy consumption in their heating and cooling modules, and their complex structures result in high manufacturing costs. For example, most cooling modules use compressor refrigeration or semiconductor cooling devices, both of which have noise issues during operation, hindering widespread adoption. Furthermore, in existing water purifiers that combine heating and cooling technologies, there is a lack of effective coordination between the various functional modules, leading to low energy efficiency. For instance, there is no good heat exchange design between the heating tank and the cooling module, wasting the heat generated by the heating tank. Therefore, developing a highly efficient, energy-saving, functionally integrated, and structurally sound water purifier is of significant practical importance. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a water purifier that uses absorption refrigeration, which can solve the problems of unsatisfactory cooling rate and high noise of existing water purifiers with cold water function, and realize a low-energy, green and efficient water purifier design.

[0004] The specific technical solution of this utility model embodiment is as follows:

[0005] A water purifier, the water purifier comprising:

[0006] A fine filtration unit, wherein the fine filtration unit has a purified water outlet;

[0007] A booster pump is installed upstream of the fine filtration unit, and the booster pump is used to pressurize the fine filtration unit;

[0008] A hot tank having a first inlet and a first outlet, the first inlet being connected to the purified water outlet to receive purified water generated by the fine filtration unit and heat and store it.

[0009] A cold tank, the cold tank having a second inlet and a second outlet, the second inlet being able to communicate with the purified water outlet;

[0010] An absorption refrigeration module includes a liquid receiver, a generator, a condenser, and an evaporator. The evaporator is disposed on the cold tank to refrigerate the cold tank, and the hot tank heats at least a portion of the generator to preheat the solution flowing through the generator.

[0011] A cold water output path, wherein the cold water output path is connected to the second outlet;

[0012] A hot water output path is provided, which is connected to the first outlet.

[0013] Preferably, at least a portion of the generator is in direct contact with at least a portion of the hot tank; or, at least a portion of the generator is in indirect contact with at least a portion of the hot tank.

[0014] Preferably, at least a portion of the generator is in contact with at least a portion of the outer surface of the hot tank.

[0015] Preferably, at least a portion of the generator is integrally or closely attached to at least a portion of the hot tank.

[0016] Preferably, at least a portion of the generator is disposed around the outer wall of the hot tank.

[0017] Preferably, at least a portion of the generator is disposed in close contact with the top wall of the hot tank.

[0018] Preferably, the hot tank is a hot tank with a vacuum layer, and at least part of the generator is disposed in the vacuum layer.

[0019] Preferably, at least a portion of the generator is located within the thermal radiation range of the hot tank, and at least a portion of the generator preheats the solution flowing through the generator by absorbing the thermal radiation emitted by the hot tank.

[0020] Preferably, at least a portion of the evaporator is disposed within the cold tank; or, at least a portion of the evaporator is in contact with at least a portion of the outer surface of the cold tank.

[0021] Preferably, a heat exchange pipe is installed inside the cold tank, which contains a heat exchange medium. The evaporator is installed inside the cold tank. The inlet of the heat exchange pipe forms the second inlet, and the outlet of the heat exchange pipe forms the second outlet.

[0022] Preferably, the heat exchange medium is a liquid.

[0023] Preferably, the generator is further provided with a heating element, which further heats the preheated solution flowing through the generator.

[0024] The technical solution of this utility model has the following significant beneficial effects:

[0025] The water purifier provided in this application uses absorption refrigeration to produce cold water. Since the absorption refrigeration module has no moving parts, it operates without noise, vibration, or wear, is not afraid of bumps, and has a long service life. In addition, the generator of the absorption refrigeration module is preheated by the waste heat of the hot tank, which reduces the start-up time of the absorption refrigeration module and thus improves the start-up speed of absorption refrigeration, achieving an environmentally friendly refrigeration effect with no noise, low energy consumption, and long service life. Attached Figure Description

[0026] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0027] Figure 1 This utility model provides a structural schematic diagram of a water purifier;

[0028] Figure 2 This utility model provides a structural schematic diagram of a water purifier;

[0029] Figure 3 This utility model provides a structural schematic diagram of a water purifier;

[0030] Figure 4 This utility model provides a structural schematic diagram of a water purifier;

[0031] Figure 5 This is a structural schematic diagram of a water purifier provided by the present invention.

[0032] The reference numerals in the above figures are as follows:

[0033] 1. Liquid receiver; 2. Condenser; 3. Evaporator; 4. Absorber; 5. Heating element; 6. Hot tank; 7. Cold tank; 8. Generator; 9. Hot water exchanger pipe; 91. Second inlet; 92. Second outlet. Detailed Implementation

[0034] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0035] Please refer to the following for comprehensive information. Figures 1 to 5 This application provides a water purifier comprising a fine filtration unit, a booster pump located upstream of the fine filtration unit, a hot water tank 6, a cold water tank 7, and an absorption cooling module. The fine filtration unit has a purified water outlet and can be a reverse osmosis membrane filtration unit, a nanofiltration membrane filtration unit, an ultrafiltration membrane filtration unit, or a fiber membrane filtration unit. The booster pump pressurizes the fine filtration unit, increasing the filtration rate of the water within it. The hot water tank 6 has a first inlet and a first outlet. The first inlet is connected to the purified water outlet and is used to receive and heat the purified water produced by the fine filtration unit. For example, the hot water tank 6 can be heated using an electric heater. A hot water output path is connected to the first outlet and is used to output hot water heated by the hot water tank 6. With the above configuration, this water purifier can simultaneously provide purified water at both hot and cold temperatures, meeting diverse user needs.

[0036] In this embodiment of the application, the water purifier uses an absorption cooling module to cool the water, such as... Figure 1 As shown, the absorption refrigeration module includes a liquid receiver 1, a generator 8, a condenser 2, and an evaporator 3. The evaporator 3 is installed on the cold tank 7 to refrigerate it. Simultaneously, the water purifier uses the heat from the hot tank 6 to preheat the solution flowing through the generator 8. The generator 8 is also equipped with a heating element 5, which is used to further heat the preheated solution. The refrigeration process of the water purifier in this application is as follows: the solution in the liquid receiver 1 enters the generator 8; the heat from the hot tank 6 preheats the solution flowing through the generator 8; and then the heating element 5 further heats the solution after it has been preheated by the heat from the hot tank 6. Since the solution stored in the liquid receiver 1 is concentrated ammonia water, the relatively pure ammonia gas enters the condenser 2 through the distillation tube, where it is further cooled into liquid ammonia. The liquid ammonia then enters the top of the evaporator 3 through the liquid ammonia pipe. The ammonia-hydrogen mixture in the inner tube of the evaporator 3 also enters the top of the evaporator 3. Under the diffusion of hydrogen, the partial pressure of ammonia decreases, and the liquid ammonia evaporates, continuously generating a cooling effect. This causes the water in the cold tank 7 to continuously decrease in temperature, becoming cold water below 10°C as required. The ammonia solution with lower concentration is absorbed by the water in the absorber 4 and then flows back to the liquid receiver 1, and so on.

[0037] There are several feasible implementation methods for preheating the solution flowing through the generator 8 using the heat from the hot tank 6. For example, the heat from the hot tank 6 can be transferred to the generator 8 by at least part of the generator 8 being in direct or indirect contact with at least part of the hot tank 6, thereby preheating the solution flowing through the generator 8.

[0038] like Figure 1 , Figure 2 and Figure 4As shown, when the generator 8 is positioned outside the hot tank 6, it can directly contact the outer surface of the hot tank 6 without any gap. Therefore, the heat generated by the hot tank 6 can be quickly transferred to the generator 8, thereby heating the solution flowing through it and preheating it. In this case, the solution in the generator 8 passively absorbs heat and therefore does not affect the temperature of the water inside the hot tank 6. Figure 1 As shown, at least a portion of the generator 8 is integrally or tightly attached to the top wall of at least a portion of the hot tank 6; as Figure 4 As shown, at least part of the generator 8 can also be integrally or closely attached to the outer wall of at least part of the hot tank 6; such as Figure 2 As shown, at least a portion of the generator 8 is arranged around the outer wall of the hot tank 6. In order to further increase the contact area between the generator 8 and the outer surface of the hot tank 6, the generator 8 can adopt a coil structure, and the coil can be arranged around the outer wall of the hot tank 6.

[0039] Alternatively, when the generator 8 is located outside the hot tank 6, it can indirectly contact the outer surface of the hot tank 6, with a certain gap between them. At least a portion of the generator 8 is located within the heat radiation range of the hot tank 6, and at least a portion of the generator 8 preheats the solution flowing through it by absorbing the heat radiation emitted by the hot tank 6. For example, an intermediate medium is provided between the generator 8 and the hot tank 6. This intermediate medium can be an air layer or other heat-conducting components. The heat emitted by the hot tank 6 is first transferred to the intermediate medium, and then transferred from the intermediate medium to the generator 8.

[0040] Or, such as Figure 3 As shown, the heating tank 6 is a vacuum heating tank with a vacuum layer. A portion of the generator 8 is disposed within the vacuum layer of the heating tank 6 to preheat the solution flowing through the generator 8 using the heat emitted by the heating tank 6. The heating tank 6 stores heat, which is transferred to the vacuum layer via thermal conduction through its inner wall. Although the vacuum layer reduces heat loss to the outside, it serves as a usable heat source for at least a portion of the generator 8 located within it. When the solution flows through the generator 8, the portion of the generator 8 in contact with the vacuum layer of the heating tank 6 absorbs the heat transferred from the heating tank 6 and transfers it to the solution within the generator 8, thereby preheating the solution.

[0041] By utilizing the heat from the hot tank 6 to preheat the solution flowing through the generator 8, energy efficiency can be improved. Preheating the solution reduces the energy required for subsequent heating and also speeds up the process of reaching the required temperature, thereby improving the overall refrigeration efficiency and reducing the time users spend waiting for cold water. Furthermore, the heat required for preheating the solution comes from the waste heat of the hot tank 6, achieving energy saving, environmental friendliness, and high efficiency.

[0042] In the embodiments of this application, the evaporator 3 is disposed on the cold tank 7 in various feasible ways. The evaporator 3 being disposed on the cold tank 7 includes being disposed inside the cold tank 7 and outside the cold tank 7. That is, the evaporator 3 can be disposed anywhere inside or outside the cold tank 7, or it can be disposed at both of the aforementioned locations.

[0043] like Figures 1 to 5 As shown, the evaporator 3 is installed inside the cold tank 7. The evaporator 3 is directly inserted into the cold tank 7. The evaporator 3 in the cold tank 7 is straight or has a certain angle to increase the contact area and enhance the cooling effect. Since the evaporator 3 is in direct contact with the water in the cold tank 7, it should be made of stainless steel or ordinary steel after special treatment to meet the requirements of drinking water.

[0044] Alternatively, the evaporator 3 can be located outside the cold tank 7, with the evaporator 3 in direct or indirect contact with the cold tank 7, transferring the cooling capacity of the evaporator 3 to the cold tank 7, thereby cooling the water inside the cold tank 7. Since the evaporator 3 does not directly contact the water in the cold tank 7, the material requirements for the evaporator 3 can be reduced, thereby reducing the manufacturing cost and process requirements of the evaporator 3.

[0045] Or, such as Figure 5 As shown, a hot water exchange pipe 9 is installed inside the cold tank 7. The inlet of the hot water exchange pipe 9 forms a second inlet 91, and the outlet of the hot water exchange pipe 9 forms a second outlet 92. The cold tank 7 contains a liquid heat exchange medium, which exchanges heat with the hot water exchange pipe 9, thereby lowering the temperature of the water flowing through the hot water exchange pipe 9. Preferably, the heat exchange medium in the cold tank 7 can be water, making it easy to replenish. The cold tank 7 may include multiple layers of shell to achieve a heat preservation effect. The evaporator 3 is used to cool the heat exchange medium in the cold tank 7. The evaporator 3 can be installed either inside or outside the cold tank 7, or in both of the above locations. The hot water exchange pipe 9 is installed inside the cold tank 7 and is wrapped with a heat exchange medium. When water flows through the hot water exchange pipe 9, the water inside the hot water exchange pipe 9 exchanges heat with the heat exchange medium outside the hot water exchange pipe 9, resulting in a lower temperature of the water flowing out of the hot water exchange pipe 9. For example, when the heat exchange medium is water, the hot water pipe 9 is submerged in water. The hot water pipe 9 can be made of a good conductor of heat, such as stainless steel or copper, with stainless steel being preferred for safer and more hygienic water supply. The second inlet 91 of the hot water pipe 9 is connected to the purified water outlet, and the second outlet 92 of the hot water pipe 9 supplies cold water to the user through the cold water output circuit.

[0046] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A water purifier, characterized in that, The water purifier includes: A fine filtration unit, wherein the fine filtration unit has a purified water outlet; A booster pump is installed upstream of the fine filtration unit, and the booster pump is used to pressurize the fine filtration unit; A hot tank having a first inlet and a first outlet, the first inlet being connected to the purified water outlet to receive purified water generated by the fine filtration unit and heat and store it. A cold tank, the cold tank having a second inlet and a second outlet, the second inlet being able to communicate with the purified water outlet; An absorption refrigeration module includes a liquid receiver, a generator, a condenser, and an evaporator. The evaporator is disposed on the cold tank to refrigerate the cold tank, and the hot tank heats at least a portion of the generator to preheat the solution flowing through the generator. A cold water output path, wherein the cold water output path is connected to the second outlet; A hot water output path is provided, which is connected to the first outlet.

2. The water purifier according to claim 1, characterized in that, At least a portion of the generator is in direct contact with at least a portion of the hot tank; or, at least a portion of the generator is in indirect contact with at least a portion of the hot tank.

3. The water purifier according to claim 2, characterized in that, At least a portion of the generator is in contact with at least a portion of the outer surface of the hot tank.

4. The water purifier according to claim 2, characterized in that, At least a portion of the generator is integrally or closely attached to at least a portion of the hot tank.

5. The water purifier according to claim 2, characterized in that, At least a portion of the generator is disposed around the outer wall of the hot tank.

6. The water purifier according to claim 4, characterized in that, At least a portion of the generator is disposed in close contact with the top wall of the hot tank.

7. The water purifier according to claim 2, characterized in that, The hot tank is a hot tank with a vacuum layer, and at least part of the generator is disposed in the vacuum layer.

8. The water purifier according to claim 2, characterized in that, At least a portion of the generator is located within the thermal radiation range of the hot tank, and at least a portion of the generator preheats the solution flowing through it by absorbing the thermal radiation emitted by the hot tank.

9. The water purifier according to claim 1, characterized in that, At least a portion of the evaporator is disposed within the cold tank; or, at least a portion of the evaporator is in contact with at least a portion of the outer surface of the cold tank.

10. The water purifier according to claim 1, characterized in that, The water purifier also includes: A heat exchange pipe is installed inside the cold tank, which contains a heat exchange medium. The evaporator is installed inside the cold tank. The inlet of the heat exchange pipe forms the second inlet, and the outlet of the heat exchange pipe forms the second outlet.

11. The water purifier according to claim 10, characterized in that, The heat exchange medium is a liquid.

12. The water purifier according to claim 1, characterized in that, The generator is also equipped with a heating element, which further heats the preheated solution flowing through the generator.

Images