CN115406102A - Outdoor unit of heat pump water heater, heat pump water heater and hot water system - Google Patents

Abstract

The invention belongs to the technical field of water heaters, and discloses an outdoor unit of a heat pump water heater, the heat pump water heater and a hot water system, wherein the outdoor unit of the heat pump water heater comprises an outdoor heat exchange module and a water path pressurization module, the water path pressurization module comprises a booster pump, a water inlet connected with an external water source, and a water supply port for supplying pressurized water to the outside; the water inlet end of the booster pump is communicated with the water inlet, and the water outlet end of the booster pump is communicated with the water supply port. The heat pump water heater integrates the waterway pressurizing module on the outdoor unit, an external water source directly enters the waterway pressurizing module, flows out from the water supply port after being increased by the pressurizing pump, can be directly used for supplying cold water, and can also supply water to the heating water tank for heating, thereby realizing the simultaneous pressurization of the supply of the cold water and the hot water. The water path pressurization module is integrated on the outdoor unit, does not need to be connected and powered independently, and is convenient to install and use.

Description

Outdoor unit of heat pump water heater, heat pump water heater and hot water system

Technical Field

The invention belongs to the technical field of water heaters, and particularly relates to an outdoor unit of a heat pump water heater, the heat pump water heater and a hot water system.

Background

The working principle of the heat pump water heater is that low-temperature low-pressure refrigerant liquid in an evaporator absorbs heat in air to gasify the refrigerant into low-temperature low-pressure refrigerant gas, then the refrigerant is pressurized and heated to become high-temperature high-pressure gas after being compressed by a compressor, and then the high-temperature high-pressure gas is subjected to heat exchange with water in a water tank by a heat exchanger in the water tank to heat water in the water tank. Meanwhile, the refrigerant is changed into low-temperature high-pressure liquid through the heat exchange process, is throttled by the throttling device to be changed into low-temperature low-pressure liquid, and enters the evaporator again to repeat the process. The traditional electric water heater and the traditional gas water heater obtain heat energy by consuming gas and electric energy, while the heat pump water heater achieves the purpose of heating water by absorbing heat in air, and can absorb heat energy which is about three times of electric energy to heat water under the condition of consuming the same electric energy, thereby having the characteristics of energy saving and high efficiency and being gradually widely used.

A household split heat pump water heater generally comprises an outdoor unit disposed outdoors for exchanging heat with air, and a heating water tank disposed indoors for heating water and supplying hot water. During the use, direct water inlet access running water pipeline with heating water tank to heating the running water that flows into heating water tank, carrying hot water to each water consumption department in the family through the hot-water line when the user has the hot water demand. And each water consumption point is also directly communicated with a tap water pipeline through a cold water pipe, and the water outlet of the cold water pipe and the water outlet of the hot water pipe are mixed through a water mixing valve at the water consumption point to obtain water with proper temperature for users to use.

However, for a use scenario with low water pressure of tap water, such as a use scenario without tap water or a self-built water tower in towns in south and a use scenario with high-rise tap water in towns, the insufficient water pressure may cause the heating water tank of the heat pump water heater to be not full, and the stored hot water is insufficient to meet the demand of the user when the demand of the user for hot water is large. To above-mentioned circumstances, generally set up the booster pump module alone on the water pipeline among the prior art, carry out the pressure boost to whole room water route. However, the booster pump module, the outdoor unit and the heating water tank are mutually independent and respectively need independent power supply, so that the water path and the circuit connection are complicated, the operation of installing the split heat pump water heater is complicated, and the cost is high.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an outdoor unit of a heat pump water heater, the heat pump water heater and a hot water system.

In order to solve the technical problems, the invention adopts the technical scheme that:

an outdoor unit of a heat pump water heater comprises an outdoor heat exchange module and a water path pressurization module, wherein the water path pressurization module comprises a pressurization pump, a water inlet connected with an external water source and a water supply port for supplying pressurized water to the outside; the water inlet end of the booster pump is communicated with the water inlet, and the water outlet end of the booster pump is communicated with the water supply port.

Further, the outdoor heat exchange module comprises a box body and an outdoor heat exchanger arranged in the box body, and the waterway pressurization module is arranged on the outer wall of the box body;

preferably, a working medium inlet and a working medium outlet which are communicated with the outdoor heat exchanger are formed in the outer wall of one side of the box body, and the opening directions of the water inlet and the water supply port face to the side where the working medium inlet and the working medium outlet are located;

preferably, the waterway pressurization module is installed on the top surface of the box body, and the installation position is close to one side where the working medium inlet and the working medium outlet are located.

Furthermore, the waterway pressurization module further comprises a housing installed on the top surface of the tank body, the pressurization pump is arranged inside the housing, and the water inlet and the water supply port are arranged on the housing.

Furthermore, still set up inlet tube and outlet pipe in the housing, the water inlet on the housing and the end of intaking of booster pump are connected respectively to the both ends of inlet tube, the water supply mouth on the housing and the water outlet end of booster pump are connected respectively to the both ends of outlet pipe.

Furthermore, the water outlet pipe comprises a first water outlet section connected to the water supply port and a second water outlet section connected with the first water outlet section and the water outlet end of the booster pump;

the first water outlet section extends for a certain length from the water supply port along the reverse direction of the water outlet direction, the second water outlet section is perpendicular to the first water outlet section, and extends from the extending tail end of the first water outlet section to the direction of the booster pump to be connected with the water outlet end of the booster pump.

Furthermore, the first water outlet section part extends downwards in an inclined way relative to the horizontal direction, and the extending tail end of the first water outlet section is lower than the height of the water supply opening;

preferably, the parts of the first water outlet section near the two ends extend horizontally, and the middle part extends obliquely downwards.

Furthermore, a fixed bracket is arranged on the top surface of the box body, and the booster pump is arranged on the fixed bracket;

preferably, the fixing bracket comprises a fixing part connected to the top surface of the tank body, and a mounting part formed by extending upwards from the fixing part, and the booster pump is mounted on the mounting part;

preferably, a certain interval is arranged between the bottom of the booster pump and the top surface of the box body.

Another objective of the present invention is to provide a heat pump water heater, which comprises a heating water tank and the outdoor unit; the heating water tank is provided with a water storage cavity, and a hot water outlet communicated with the water storage cavity is formed in the heating water tank; and the water supply port of the waterway pressurization module is communicated with the water storage cavity through a communication pipeline to supply water to the water storage cavity.

Further, the water supply port is also communicated with a cold water pipe for supplying cold water to the outside;

preferably, the water inlet end of the cold water pipe is connected to the water supply port, or the water inlet end of the cold water pipe is connected to the communicating pipe.

The third purpose of the invention is to provide a hot water system, which comprises the heat pump water heater and a plurality of water consumption points, wherein the water inlet of the waterway pressurization module is connected with an external water source, and the hot water outlet is connected with each water consumption point through a hot water pipe;

the hot water system also comprises cold water pipes connected with the water consumption points, and the water inlet ends of the cold water pipes are connected to the communicating pipeline or the water supply ports.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

The heat pump water heater is integrated with the waterway pressurization module on the outdoor unit, an external water source directly enters the waterway pressurization module, flows out from the water supply port after being increased by the pressurization pump, can be directly used for supplying cold water, and can also supply water to the heating water tank for heating, thereby realizing the simultaneous pressurization of the supply of the cold water and the hot water. The water path pressurization module is integrated on the outdoor unit, does not need to be connected and powered independently, and is convenient to install and use.

In the outdoor unit of the heat pump water heater, the waterway pressurizing module is arranged on the outer wall of the box body, so that the existing structure in the outdoor unit is not influenced. The heating water tank is provided with a water tank heat exchanger for heating internal stored water, and a working medium inlet and a working medium outlet which are arranged on the tank body are connected with the water tank heat exchanger through pipelines. The water supply port needs to be communicated with the heating water tank to supply water to the interior of the heating water tank, and the opening directions of the water inlet and the water supply port are set to face one side where the working medium inlet and the working medium outlet are located, so that the parts, which need to be connected with the heating water tank, of the outdoor unit are concentrated on the same side of the outdoor unit, the arrangement length of pipelines is reduced, and the pipeline connection is more convenient.

In the hot water system, the outdoor unit of the heat pump water heater is arranged outdoors, the waterway supercharging module is directly arranged at the water inlet of the whole house and is connected with an external water source, external water supply firstly enters the supercharging pump for supercharging, the supercharging water can be divided into two paths, one path of the external water supply enters the heating water tank for heating, then hot water is supplied through the hot water pipe, the other path of the external water supply enters the cold water pipe for directly supplying cold water, and therefore double supercharging of water flow in the cold water pipe and the hot water pipe is achieved, and water use experience of users is improved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural view of an outdoor unit according to an embodiment of the present invention;

fig. 2 is a schematic view of an outdoor unit of the first and second embodiments of the present invention with a cover removed;

FIG. 3 is an enlarged schematic view at A of FIG. 2 of the present invention;

fig. 4 is a top view of an outdoor unit of one and two embodiments of the present invention with a cover removed;

FIG. 5 is a schematic structural view of a heating water tank in an embodiment of the present invention;

FIG. 6 is a schematic view of a hot water system according to a second embodiment and a third embodiment of the present invention.

In the figure: 1. a water main; 2. a communicating pipeline; 3. a hot water pipe; 4. a cold water pipe; 5. water consumption; 6. an outdoor unit; 7. heating the water tank; 100. an outdoor heat exchange module; 110. a box body; 111. a working medium inlet; 112. a working medium outlet; 200. a waterway pressurization module; 210. a housing; 211. a water inlet; 212. a water supply port; 220. a booster pump; 221. a water inlet end; 222. a water outlet end; 230. a water inlet pipe; 240. a water outlet pipe; 241. a first water outlet section; 242. a second water outlet section; 250. fixing a bracket; 251. a fixed part; 252. an installation part; 701. a cold water inlet; 702. a hot water outlet; 703. a working medium inlet; 704. a working medium outlet; 710. a housing.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 5, the present embodiment provides an outdoor unit 6 of a heat pump water heater, and a heat pump water heater including the outdoor unit 6. Specifically, the heat pump water heater is a split type heat pump water heater and comprises an outdoor unit 6 and a heating water tank 7. The outdoor unit 6 is placed outdoors to absorb heat from air, the compressor works to transfer the heat from the low-temperature heat source to the high-temperature heat source, and the transferred heat is absorbed by water in the heating water tank 7, so that the water in the heating water tank 7 is heated, and the purpose of supplying hot water to the outside can be achieved.

In this embodiment, the outdoor unit 6 includes an outdoor heat exchange module 100 and a water path pressurizing module 200, and the water path pressurizing module 200 includes a pressurizing pump 220, a water inlet 211 connected to an external water source, and a water supply inlet 212 for supplying pressurized water to the outside. The water inlet 221 of the booster pump 220 is communicated with the water inlet 211, and the water outlet 222 of the booster pump 220 is communicated with the water supply port 212.

When the outdoor unit is used, the waterway pressure increasing module 200 of the outdoor unit 6 is directly connected to the whole-house water inlet position in the home of the user. Specifically, a main pipeline for supplying water to a home is directly connected to the water inlet 211, the water supply port 212 may be connected to the heating water tank 7 through a communication pipe to supply water into the heating water tank 7, and may be directly connected to a plurality of water consumption points in the home through a cold water pipe to supply cold water.

In the above solution, the waterway pressurization module 200 is integrated on the outdoor unit 6, and an external water source directly enters the waterway pressurization module 200, and flows out from the water supply port 212 after being increased by the booster pump 220. The pressurized water flowing out from the water supply port 212 may be directly used for cold water supply, or may be supplied to the heating water tank 7 for heating, so as to realize simultaneous pressurization of cold water and hot water supply. The water path pressurization module 200 is integrated on the outdoor unit 6, and is not required to be installed independently, and can be integrally supplied with power and controlled by the outdoor unit 6, so that the complicated modification process of a water path and a circuit when a pressurization water pump is independently arranged on a main pipeline of household water supply of a user is omitted, and the installation and the use are convenient.

In this embodiment, a pump with a direct current of 11 meters can be used as the booster pump 220, and the flow rate is 8 meters per second.

In a specific scheme of this embodiment, the outdoor heat exchange module 100 includes a box body 110 and an outdoor heat exchanger disposed in the box body 110, and the waterway pressurization module 200 is installed on an outer wall of the box body 110.

In detail, the outdoor heat exchanger is provided with flowing working media, and the working media absorb heat from air in the outdoor heat exchanger so as to be converted into a gas state from a liquid state. The box body 110 is also provided with a compressor communicated with the outdoor heat exchanger, and the gaseous working medium is conveyed out of the outdoor unit 6 through the compressor, enters the water tank heat exchanger on the heating water tank 7, and exchanges heat with water in the heating water tank 7, so that the temperature of the water in the heating water tank 7 rises. Meanwhile, the gaseous working medium is condensed and reconverted into liquid in the water tank heat exchanger and then is recycled to the outdoor heat exchanger.

The waterway pressurization module 200 is installed on the outer wall of the box body 110, which does not affect the existing structure inside the box body 110, so that the outdoor unit 6 with the waterway pressurization module 200 in the embodiment can be obtained on the basis of the existing outdoor unit without changing or hardly changing the original structure inside the box body 110, and the production and manufacturing of the outdoor unit 6 in the embodiment are facilitated.

In a further scheme of this embodiment, the outer wall of one side of the box body 110 is provided with a working medium inlet 111 and a working medium outlet 112 which are communicated with the outdoor heat exchanger, and the opening directions of the water inlet 211 and the water supply port 212 face to the side where the working medium inlet 111 and the working medium outlet 112 are located.

In the above solution, in order to realize the circulation of the working medium among the outdoor heat exchanger, the compressor and the water tank heat exchanger, the box body 110 is respectively provided with a working medium outlet 112 for the working medium to flow out and a working medium inlet 111 for the working medium to flow in. Correspondingly, the heating water tank 7 is also provided with a working medium inlet 703 and a working medium outlet 704 which are respectively communicated with the water tank heat exchanger. When the device is used, the working medium outlet 112 on the box body 110 is communicated with the working medium inlet 703 on the heating water tank 7, and the working medium inlet 111 on the box body 110 is communicated with the working medium outlet 704 on the heating water tank 7, so that a working medium circulation loop is formed.

After the external water supply passes through the waterway pressurizing module 200, the external water flows out from the water supply port 212 of the waterway pressurizing module 200, and the water supply port 212 needs to be communicated with the water storage cavity in the heating water tank 7 through a pipeline, so that the purpose of supplying water to the heating water tank 7 is realized. In this embodiment, the working medium inlet 111 and the working medium outlet 112 are disposed on the right side of the box body 110, and correspondingly, the opening directions of the water inlet 211 and the water supply inlet 212 are set to be rightward, so that the portions of the outdoor unit 6 that need to be connected to the heating water tank 7 are concentrated on the right side of the outdoor unit 6.

In a preferred embodiment of the present invention, the waterway pressure increasing module 200 is installed on the top surface of the box body 110 at a position close to the side where the working medium inlet 111 and the working medium outlet 112 are located. The waterway pressure increasing module 200 is integrally installed on the top surface of the tank body 110, and does not occupy the space at the periphery of the tank body 110. The waterway pressure increasing module 200 is integrally positioned at the right end of the top surface of the tank body 110, so that the working medium inlet 111, the working medium outlet 112, the water inlet 211 and the water supply port 212 are all positioned at the rightmost side of the tank body 110, and the connection of pipelines can be simplified to the greatest extent.

In a further aspect of this embodiment, the waterway pressurization module 200 further includes a housing 210 installed on the top surface of the tank 110, the pressurizing pump 220 is disposed inside the housing 210, and the water inlet 211 and the water supply port 212 are disposed on the housing 210.

In the above scheme, the casing 210 encloses the booster pump 220 in the space enclosed by the casing 210 and the top surface of the tank 110, and the booster pump 220 is not in direct contact with the external space, so that the booster pump 220 can be protected, and the damage of the booster pump 220 caused by the collision of the booster pump 220 is avoided.

In a further scheme of this embodiment, a water inlet pipe 230 and a water outlet pipe 240 are further disposed in the housing 210, two ends of the water inlet pipe 230 are respectively connected to the water inlet 211 of the housing 210 and the water inlet 221 of the booster pump 220, and two ends of the water outlet pipe 240 are respectively connected to the water supply port 212 of the housing 210 and the water outlet 222 of the booster pump 220.

Specifically, the water outlet pipe 240 includes a first water outlet section 241 connected to the water supply port 212, and a second water outlet section 242 connecting the first water outlet section 241 with the water outlet end 222 of the booster pump 220.

The first water outlet section 241 extends from the water supply port 212 in a direction opposite to the water outlet direction for a certain length, and the second water outlet section 242 is arranged perpendicular to the first water outlet section 241, extends from the extending end of the first water outlet section 241 to the direction of the booster pump 220, and is connected to the water outlet end 222 of the booster pump 220.

In this embodiment, to simplify the waterway structure and improve the aesthetic property of the waterway pressurizing module 200, the water inlet 211 and the water inlet 212 are disposed on the same side, and the water inlet 221 and the water outlet 222 of the pressurizing pump 220 are oriented perpendicular to each other, so that the water flow is guided to turn through the water outlet pipe 240. The water outlet pipe 240 is composed of a first water outlet section 241 and a second water outlet section 242 which are perpendicular to each other, and has a simple structure, and is easy to implement, and the space occupied by the water outlet pipe inside the housing 210 is reduced as much as possible.

Further, the first water outlet section 241 extends downward and slantwise with respect to the horizontal direction, and the extending end of the first water outlet section 241 is lower than the height of the water supply opening 212.

Preferably, the portions of the first water outlet section 241 near the two ends extend horizontally, and the middle portion extends obliquely downward.

In this embodiment, the water inlet 211 and the water supply inlet 212 are disposed at the same height on the housing 210, so that the appearance of the waterway pressurizing module 200 is more beautiful, and the water inlet 221 and the water outlet 222 of the pressurizing pump 220 have different heights. Since the water outlet end 222 of the booster pump 220 is oriented horizontally, the second water outlet section 242 extends horizontally to connect with the water outlet end 222, and the height difference between the water inlet end 221 and the water outlet end 222 of the booster pump 220 needs to be compensated by partially inclining the first water outlet section 241. The water supply opening 212 is oriented in a horizontal direction, while the second water outlet section 242 extends horizontally, the two ends of the first water outlet section 241 are horizontally extended for connection, and the middle part extends obliquely to complete the height difference.

In a further aspect of this embodiment, a fixing bracket 250 is provided on the top surface of the tank 110, and the booster pump 220 is mounted on the fixing bracket 250.

In the above scheme, the booster pump 220 is mounted on the fixing bracket 250, rather than being directly mounted on the top surface of the box body 110, and the fixing bracket 250 can play a certain buffering role in the vibration generated in the working process of the booster pump 220, thereby avoiding the serious influence on the box body 110 and the internal structure of the outdoor heat exchange module 100, such as the connection of each part of the box body 110, or the connection structure of each part in the box body 110 becoming loose, and influencing the work of the outdoor heat exchange module 100.

In a preferred embodiment of the present invention, the fixing bracket 250 includes a fixing portion 251 coupled to the top surface of the casing 110, and a mounting portion 252 formed to extend upward from the fixing portion 251, and the pressurizing pump 220 is mounted on the mounting portion 252.

Preferably, the bottom of the booster pump 220 is spaced apart from the top surface of the tank 110.

Specifically, the fixing portion 251 is coupled to the top surface of the case 110 by screws, and the booster pump 220 is mounted to the mounting portion 252 by screws such that the booster pump 220 is spaced apart from the top surface of the case 110.

In the above solution, the fixing bracket 250 is structurally designed to be connected to the tank 110, and the booster pump 220 is lifted up by the mounting portion 252 to be as far away from the top surface of the tank 110 as possible, thereby further attenuating the vibration of the booster pump 220.

The split heat pump water heater provided by the embodiment comprises a heating water tank 7 and the outdoor unit 6. The heating water tank 7 is provided with a water storage cavity, and a hot water outlet 702 communicated with the water storage cavity is arranged on the heating water tank 7. The water supply port 212 of the waterway pressurizing module 200 is communicated with the water storage cavity through a communication pipeline to supply water to the water storage cavity.

Specifically, the heating tank 7 includes an outer shell 710 and an inner container disposed inside the outer shell 710, and a water storage chamber is formed inside the inner container. The housing 710 is provided with a cold water inlet 701 communicated with the inner container, and both ends of the communication pipeline are respectively connected with the water supply port 212 of the waterway pressurizing module 200 and the cold water inlet 701 of the housing 710, thereby supplying water into the inner container.

The outer wall of the inner container is wound with a water tank heat exchanger, wherein the circulating working medium is converted into liquid from gas, and the heat is released to heat water in the inner container, so that the temperature of the water in the heating water tank 7 is increased. The working medium inlet 703 and the working medium outlet 704 communicated with the water tank heat exchanger extend out of the casing 710 so as to be connected with the working medium outlet 112 and the working medium inlet 111 of the outdoor unit 6 through pipelines, respectively.

The hot water outlet 702 is arranged on the shell 710 and is communicated with the inner container, and along with the process that cold water is injected into the inner container, the water heated in the inner container can flow out through the hot water outlet 702 under the action of water pressure, so that hot water supply is realized. Since the cold water entering the inner tank is pressurized water passing through the pressurizing pump 220, pressurization of hot water supply is achieved.

In a further aspect of this embodiment, the water supply port 212 is also communicated with a cold water pipe for supplying cold water to the outside.

Preferably, the water inlet end of the cold water pipe is connected to the water supply port 212, or the water inlet end of the cold water pipe is connected to the communication pipe.

In the above scheme, the water supply port 212 is communicated with the cold water pipe, so that the pressurized water can be directly supplied with cold water, that is, the cold water supply is pressurized. When the heat pump water heater of this embodiment is installed, with the main line direct access water route pressure boost module 200 of family's water supply, water after the pressure boost flows out from water supply port 212 back, can make simultaneously carry out cold water supply and hot water supply, has realized the pressure boost when cold water and hot water supply, has improved user's water experience.

Specifically, one implementation of the present embodiment is to connect a three-way joint at the water supply port 212, where one outlet of the three-way joint is connected to one end of the communication pipeline and the other outlet is connected to the water inlet end of the cold water pipe.

Another implementation manner of this embodiment is to provide a three-way connection for connecting a cold water pipe on a communication pipeline. Specifically, the communication pipeline includes an upstream pipeline and a downstream pipeline, the water supply port 212 is communicated with an inlet of the three-way joint through the upstream pipeline, one outlet of the three-way joint is communicated with the cold water inlet 701 through the downstream pipeline, and the other outlet of the three-way joint is connected with a water inlet end of the cold water pipe.

In the first implementation manner, the cold water pressurized by the booster pump 220 is divided into two paths at the water supply port 212, and the two paths enter the heating water tank 7 and the cold water pipe respectively. In the second implementation manner, the water flowing out of the water supply port 212 firstly enters the upstream pipeline and then is divided by the three-way joint to enter the heating water tank 7 and the cold water pipe respectively. For a general user, the cold water pipe is laid in advance at home, and the user can select a proper mode to carry out waterway connection according to the position of the water inlet end of the cold water pipe and the installation position of the outdoor unit 6.

In this embodiment, the water path pressurizing module 200 is integrated on the outdoor unit 6 of the heat pump water heater, and an external water source is directly connected to the water inlet 211, and the water can flow out from the water supply port 212 after being pressurized by the pressurizing pump 220, and is divided into two paths for supplying pressurized water. One path of the water flows into a cold water pipe to directly supply cold water, the other path of the water flows into a heating water tank 7 of the heat pump water heater to supply water, and the water flows out after being heated by the heating water tank 7 to supply hot water. Therefore, two ways of simultaneous pressurization of cold water and hot water supply are realized, and the water using experience of a user is improved. Meanwhile, the waterway pressure increasing module 200 is integrally arranged on the outdoor unit 6, so that the installation is convenient, and the waterway pressure increasing module can be uniformly supplied with power and controlled by the outdoor unit 6, thereby being convenient for use.

Example two

As shown in fig. 1 to fig. 6, the present embodiment provides a hot water system, which includes the heat pump water heater according to the first embodiment, and a plurality of water consumption points 5, wherein the water inlet 211 of the water path pressurization module 200 is connected to an external water source, and the hot water outlet 702 is connected to each water consumption point 5 through the hot water pipe 3.

The hot water system also comprises cold water pipes 4 connected with the water consumption points 5, and the water inlet ends of the cold water pipes 4 are connected to the communication pipeline 2.

In the above scheme, the outdoor unit 6 is directly installed at the water inlet of the whole house and connected with an external water source. Specifically, water in a tap water well is pumped into a water storage tank in the home of a user for storage, and when the user needs water, the water is supplied into a water supply main pipe 1 in the home of the user through the water storage tank. In this implementation, water inlet 211 of water route pressure boost module 200 and the water main 1 lug connection on the storage water tank delivery port, behind the booster pump 220 pressure boost of the inside pressure boost module 200 in water route, in the reentrant hot water tank 7 and the cold water pipe 4 of transport respectively again, simultaneously, during hot water in the inner bag of hot water tank 7 gets into hot-water line 3 under the water pressure effect, carry hot water and cold water to water consumption point 5 department respectively by hot-water line 3 and cold water pipe 4, obtain the water that the temperature is suitable after the muddy water valve of water consumption point 5 department mixes and supply the user to use.

The hot water system of this embodiment is through the setting and subsequent tube coupling of the off-premises station 6 that the integration has water route pressure boost module 200, has realized the effect to the rivers pressure boost simultaneously in two pipelines of cold water pipe 4 and hot-water line 3, has improved user's water experience. The scheme of this embodiment is few to the transformation in current water route, and the transformation is with low costs, easily realizes.

In another scheme of this embodiment, can also be with the end lug connection that intakes of cold water pipe on the water supply mouth, also can realize the effect of the rivers pressure boost simultaneously in cold water pipe and the hot-water line through the water route pressure boost module on the off-premises station.

EXAMPLE III

As shown in fig. 1, the present embodiment is different from the first embodiment in that: the water outlet pipe comprises a first water outlet section, a preheating section and a second water outlet section in sequence from a water supply port 212 on the housing 210 to the water outlet end of the booster pump, and the preheating section is arranged inside the box body 110 of the outdoor heat exchange module 100.

Specifically, a heat exchange device is arranged in the box body 110, and the preheating section passes through the heat exchange device to exchange heat with the heat exchange device, so that preheating of water flow in the preheating section is realized. Because the outdoor unit 6 is installed outside the user's house, especially in winter with low outside environmental temperature, the water in the water inlet pipe can be prevented from freezing into ice by the arrangement of the preheating section, and even the water inlet pipe can be prevented from being frozen.

In this embodiment, heat transfer device sets up near the region at the inside compressor place of box 110, can absorb the heat of the effluvium in the compressor working process, gives the rivers in the preheating section with the heat transfer that absorbs again, realizes preheating to rivers.

In detail, the top surface of the box 100 in the interior of the housing 210 is provided with a first through hole and a second through hole, the water inlet end of the preheating section extends out of the box 100 from the first through hole, and the water outlet end of the preheating section extends out of the box 110 from the second through hole. The second water outlet section is connected to the water inlet end of the booster pump and horizontally extends backwards until being connected with the water inlet end of the preheating section. The first water outlet section extends from the water outlet end of the preheating section to the right horizontally to be connected with the water supply port 212.

When the outdoor unit 6 of this embodiment operates, external water enters the waterway pressurization module 200 through the water inlet 211, flows through the water inlet pipe, is pressurized by the pressurization pump, and then enters the preheating section located in the box body 110 through the second water outlet section. When the water flows through the preheating section, the water flows exchange heat with the heat exchange device inside the box body 110 to realize preheating, the temperature of the water flows is prevented from being too low, and particularly the water flows can be prevented from being frozen when the outdoor environment temperature is low. The water flow enters the first water outlet section after passing through the preheating section, and is conveyed to the water supply port 212 by the first water outlet section, so that water can be supplied to the heating water tank 7 or cold water can be directly supplied.

The embodiment further provides a heat pump water heater comprising the outdoor unit 6, and the connection mode of the outdoor unit 6 and the heating water tank 7 in the heat pump water heater is the same as that in the first embodiment, and is not described again.

As shown in fig. 6, in the present embodiment, a hot water system including the heat pump water heater is further provided, the water inlet 211 of the water path pressurization module 200 is connected to an external water source, and the hot water outlet 702 of the heating water tank 7 is connected to each water consumption point 5 through the hot water pipe 3. And the water inlet end of the cold water pipe 4 is connected to a communication pipeline 2 for connecting the water supply port 212 of the waterway pressurization module 200 and the cold water inlet 701 of the heating water tank.

In this embodiment, when the user has the water demand, external water supply enters the water route pressure boost module 200 from the water inlet 211, carries out the pressure boost through the booster pump earlier, then passes through the outlet pipe, especially can preheat rivers when passing through the preheating section of outlet pipe, finally flows out by the water supply mouth 212, gets into cold water pipe 4 and communicating pipe 2 respectively, and communicating pipe 2 carries rivers to heating water tank 7 again, makes the hot water in the heating water tank 7 flow out by hot water outlet 702 and carries out hot water pipe 3. Through the mode, can supply water in the external world and get into cold water pipe 4 and heat water tank 7 before preheating, prevent that the water supply temperature from crossing lowly, still can carry out the pressure boost simultaneously to the rivers in two pipelines of cold water pipe 4 and hot-water line 3 simultaneously, improved user's water experience.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The outdoor unit of the heat pump water heater is characterized by comprising an outdoor heat exchange module and a water path pressurization module, wherein the water path pressurization module comprises a pressurization pump, a water inlet connected with an external water source and a water supply port for supplying pressurized water to the outside; the water inlet end of the booster pump is communicated with the water inlet, and the water outlet end of the booster pump is communicated with the water supply port.

2. The outdoor unit of the heat pump water heater of claim 1, wherein the outdoor heat exchange module comprises a box body and an outdoor heat exchanger arranged in the box body, and the waterway pressurization module is installed on the outer wall of the box body;

preferably, a working medium inlet and a working medium outlet which are communicated with the outdoor heat exchanger are formed in the outer wall of one side of the box body, and the opening directions of the water inlet and the water supply port face to the side where the working medium inlet and the working medium outlet are located;

preferably, the waterway pressurization module is installed on the top surface of the box body, and the installation position is close to one side where the working medium inlet and the working medium outlet are located.

3. The outdoor unit of a heat pump water heater of claim 2, wherein the waterway pressurizing module further comprises a cover installed on a top surface of the cabinet, the pressurizing pump is disposed inside the cover, and the water inlet and the water supply port are disposed on the cover.

4. The outdoor unit of a heat pump water heater of claim 3, wherein a water inlet pipe and a water outlet pipe are further disposed in the housing, both ends of the water inlet pipe are respectively connected to the water inlet of the housing and the water inlet of the booster pump, and both ends of the water outlet pipe are respectively connected to the water supply port of the housing and the water outlet of the booster pump.

5. The outdoor unit of the heat pump water heater as claimed in claim 4, wherein the water outlet pipe comprises a first water outlet section connected to the water supply inlet, and a second water outlet section connecting the first water outlet section and the water outlet end of the booster pump;

the first water outlet section extends for a certain length from the water supply port along the reverse direction of the water outlet direction, the second water outlet section is perpendicular to the first water outlet section, and extends from the extending tail end of the first water outlet section to the direction of the booster pump to be connected with the water outlet end of the booster pump.

6. The outdoor unit of a heat pump water heater of claim 5, wherein the first water outlet section extends obliquely downward with respect to the horizontal direction, and the extending end of the first water outlet section is lower than the water supply port;

preferably, the parts of the first water outlet section near the two ends extend horizontally, and the middle part extends obliquely downwards.

7. The outdoor unit of a heat pump water heater as claimed in any one of claims 2 to 6, wherein a fixing bracket is provided on a top surface of the cabinet, and the booster pump is mounted on the fixing bracket;

preferably, the fixing bracket includes a fixing portion connected to a top surface of the tank body, and a mounting portion formed to extend upward from the fixing portion, the booster pump being mounted on the mounting portion;

preferably, a certain interval is arranged between the bottom of the booster pump and the top surface of the box body.

8. A heat pump water heater comprising a heating water tank and the outdoor unit according to any one of claims 1 to 7; the heating water tank is provided with a water storage cavity, and a hot water outlet communicated with the water storage cavity is formed in the heating water tank; the water supply port of the water path pressurization module is communicated with the water storage cavity through a communication pipeline to supply water to the water storage cavity.

9. The heat pump water heater according to claim 8, wherein the water supply port is further communicated with a cold water pipe supplying cold water to the outside;

preferably, the water inlet end of the cold water pipe is connected to the water supply port, or the water inlet end of the cold water pipe is connected to the communicating pipe.

10. A hot water system, comprising the heat pump water heater according to claim 8 or 9, and a plurality of water consumption points, wherein the water inlet of the waterway pressure increasing module is connected with an external water source, and the hot water outlet is connected with each water consumption point through a hot water pipe;

the hot water system also comprises cold water pipes connected with the water consumption points, and the water inlet ends of the cold water pipes are connected to the communicating pipeline or the water supply ports.

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