CN115682425A - A direct heating heat pump water heater - Google Patents

Abstract

A directly-heated heat pump water heater comprises a compressor, a four-way valve, an outdoor heat exchanger, an electronic expansion valve, a condenser and a heat preservation water storage tank, wherein a hot water outlet pipe is arranged at the upper part of the heat preservation water storage tank, a cold water inlet pipe is arranged at the lower part of the heat preservation water storage tank, the condenser is arranged at the bottom of the heat preservation water storage tank, and the condenser heats cold water entering the bottom of the heat preservation water storage tank. The condenser directly heats the water in the heat preservation water storage tank, and the cold water entering the heat preservation water storage tank is instantly heated in the water using stage, so that the hot water is sufficient.

Description

A direct heating heat pump water heater

technical field

The invention relates to an air heat pump water heater.

Background technique

The current existing technology, Chinese patent 201910950380.8, is a household frequency conversion direct heating air energy heat pump water heater, including a compressor, a four-way valve, a plate heat exchanger, an insulated water tank, a circulating water pump, a liquid receiver, a finned evaporator, and a fan , a water outlet pipe and a water inlet pipe, the outer wall of the heat preservation water tank is sequentially provided with a water replenishment port, a circulation inlet and a circulation outlet connected with the interior of the heat preservation water tank from bottom to top, and a second temperature probe is arranged inside the heat preservation water tank. The plate heat exchanger is provided with a first upper port, a first lower port, a second upper port and a second lower port. Existing problems are: the water in the thermal insulation water tank is heated in circulation through the plate heat exchanger and the water pump; in the stage of using hot water, the cold water cannot be quickly heated.

Contents of the invention

The object of the present invention is to provide a direct heating heat pump water heater, which has the feature that the condenser directly heats the water in the heat preservation water tank and is instant hot water.

The present invention is realized in the following way: a direct heating type heat pump water heater, which is special in that it includes a compressor, a four-way valve, an outdoor heat exchanger, an electronic expansion valve, a condenser, and an insulated water storage tank, and the upper part of the insulated water storage tank There is a hot water outlet pipe and a cold water inlet pipe at the lower part.

The condenser is arranged at the bottom of the thermal insulation water storage tank, and the condenser promptly heats the cold water entering the bottom of the thermal insulation storage tank.

The above-mentioned direct heating type heat pump water heater is special in that: the condenser is spirally wound into a cylindrical shape by a pipe body,

It also includes the instant hot water heat exchanger, that is, the hot water heat exchanger is wound into a cylindrical shape by the water guide pipe body,

That is, the water guide pipe body of the hot water heat exchanger is located in the pipe body of the condenser, one end of the water guide pipe body is connected with the cold water inlet pipe, and the other end is connected with the heat preservation water storage tank, and the gap between the pipe body and the water guide pipe body is used as a refrigerant channel .

The direct heating type heat pump water heater is special in that: in the heat preservation stage of the heat preservation water storage tank, the condenser directly heats the water in the heat preservation water storage tank;

In the water stage, the condenser heats the water in the hot water heat exchanger and the water in the heat preservation water storage tank.

The special feature of the direct heating heat pump water heater is that the refrigerant flows from top to bottom, and the water flows from bottom to top in the water guide pipe body.

The special feature of the direct heating heat pump water heater is that it also includes a proportional valve, which is arranged on the cold water inlet pipe and communicated with the hot water outlet pipe.

The direct heating type heat pump water heater of the present invention adopts such a structure, the condenser directly heats the water in the heat preservation water storage tank, and immediately heats the cold water entering the heat preservation water storage tank during the water use stage, and the hot water is sufficient.

Description of drawings

Fig. 1 is a front view of the present invention.

Figure 2 is a perspective view of the present invention, namely the hot water heat exchanger and condenser assembly.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

As shown in Figure 1, a direct heating heat pump water heater includes a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an electronic expansion valve 4, a condenser 5, and an insulated water storage tank 6, and the upper part of the insulated water storage tank 6 A hot water outlet pipe 61 is provided, and a cold water inlet pipe 62 is provided at the bottom,

Condenser 5 is located at the bottom of heat preservation water storage tank 6, and condenser 5 promptly heats the cold water that enters heat preservation water storage tank 6 bottoms.

As a further improvement of the present invention: the condenser 5 is spirally wound into a cylindrical shape by a pipe body 51,

It also includes an instant hot water heat exchanger, that is, the hot water heat exchanger is wound into a cylindrical shape by the water guide pipe body 7,

That is, the water guide pipe body 7 of the hot water heat exchanger is located in the pipe body 51 of the condenser 5, one end of the water guide pipe body 7 communicates with the cold water inlet pipe 62, and the other end communicates with the inner cavity of the heat preservation water storage tank 6, and the pipe body 51 and the gap between the water guide pipe body 7 as a refrigerant channel.

In the heat preservation stage of the heat preservation water storage tank 6, the condenser 5 directly heats the water in the heat preservation water storage tank 6;

In the water stage, the condenser 5 heats the water in the hot water heat exchanger and the water in the heat preservation water storage tank. Realize unlimited hot water supply.

The refrigerant flows from top to bottom in the pipe body 51 , and the water flows from bottom to top in the water guide pipe body 7 .

As a further improvement of the present invention: a proportional valve 8 is also included, and the proportional valve 8 is arranged on the cold water inlet pipe 61 and communicated with the hot water outlet pipe 62 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (5)

1. A direct heating type heat pump water heater is characterized in that: it comprises a compressor, a four-way valve, an outdoor heat exchanger, an electronic expansion valve, a condenser and an insulated water storage tank, and the top of the insulated water storage tank is provided with a hot water outlet pipe, The lower part is provided with a cold water inlet pipe, The condenser is arranged at the bottom of the thermal insulation water storage tank, and the condenser promptly heats the cold water entering the bottom of the thermal insulation storage tank. 2. A direct heating heat pump water heater according to claim 1, characterized in that: the condenser is spirally wound into a cylindrical shape by a pipe body, It also includes the instant hot water heat exchanger, that is, the hot water heat exchanger is wound into a cylindrical shape by the water guide pipe body, That is, the water guide pipe body of the hot water heat exchanger is located in the pipe body of the condenser, one end of the water guide pipe body is connected with the cold water inlet pipe, and the other end is connected with the heat preservation water storage tank, and the gap between the pipe body and the water guide pipe body is used as a refrigerant channel . 3. A direct heating type heat pump water heater according to claim 2, characterized in that: in the heat preservation stage of the heat preservation water storage tank, the condenser directly heats the water in the heat preservation water storage tank; In the water stage, the condenser heats the water in the hot water heat exchanger and the water in the heat preservation water storage tank. 4 . The direct heating heat pump water heater according to claim 2 , wherein the refrigerant flows from top to bottom, and the water flows from bottom to top in the water guiding pipe. 5. A direct heating heat pump water heater according to claim 1, 2, 3 or 4, characterized in that it further comprises a proportional valve, which is arranged on the cold water inlet pipe and communicated with the hot water outlet pipe.

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