CN202792527U - An energy-saving and water-saving instantaneous heat pump water heater - Google Patents

Abstract

An energy-saving and water-saving instant heat pump water heater includes a compressor, a condenser, an expansion valve, an evaporator, a liquid storage tank, a water storage tank and a heat collecting tank. The condenser is arranged in the water storage tank, and the evaporator is arranged in the heat collecting tank. The special feature is that it also includes a water collecting tank, a preheating heat exchanger and a wastewater collecting tank. The preheating heat exchanger includes a preheating water tank and a heat exchanger arranged in the preheating water tank. One end of the heat exchanger is connected to a water source and the other end is connected to a water storage tank. The water collecting tank is connected to the preheating water tank, and the preheating water tank is connected to the heat collecting tank. The heat collecting tank is connected to the wastewater collecting tank. Due to the use of such a structure, the hot water after bathing flows into the water collecting tank and enters the preheating heat exchanger to preheat the water source. The water after cooling still has residual heat, and then enters the heat collecting tank to exchange heat with the evaporator, which effectively utilizes the residual heat of the waste water after bathing, reduces the working pressure of the pressure compressor, and achieves the purpose of energy saving.

Description

An energy-saving and water-saving instantaneous heat pump water heater

technical field

The invention relates to a compressor type instantaneous water heater.

Background technique

In the current prior art, a compressor-type heat pump water heater includes a compressor, a condenser, an expansion valve, an evaporator, a liquid storage tank, a water storage tank, and a water collection tank. The condenser is arranged in the water storage tank, and the evaporator is arranged in the water storage tank. In the hot water tank. The problem that exists is: can not make full use of the residual heat of the waste water after bathing.

Contents of the invention

The object of the present invention is to provide an energy-saving and water-saving instant heat pump water heater, which can make full use of waste heat and achieve the purpose of energy saving.

The present invention is realized as follows: an energy-saving and water-saving instant heat pump water heater, including a compressor, a condenser, an expansion valve, an evaporator, a liquid storage tank, a water storage tank and a hot water collection tank, and the condenser is arranged in the water storage tank Inside, the evaporator is set in the water collection tank; its special feature is that it also includes a water collection tank, a preheating heat exchanger and a waste water collection tank. heat exchanger in the water tank;

One end of the heat exchanger is connected to the water source, and the other end is connected to the water storage tank; the water collection tank is connected to the preheating water tank, and the preheating water tank is connected to the collecting water tank;

The energy-saving and water-saving instant heat pump water heater is special in that it also includes a water pump, a first water flow control switch, and a second water flow control switch,

The first water flow control switch is set on the pipeline connecting the heat exchanger and the water source, the water pump is set on the pipeline connecting the water collection tank and the preheating water tank, and the first water flow control switch is connected to the water pump;

The second water flow control switch is arranged on the pipeline connecting the water collection tank and the waste water collection tank, and the second water flow control switch is connected to the compressor;

The energy-saving and water-saving instant heat pump water heater is special in that it also includes a drainage pipeline, one end of the drainage pipeline communicates with the pipeline between the water pump and the preheating water tank, and the other end It is connected with the pipeline between the second water flow control switch and the hot water tank; a stop valve is arranged on the drain pipeline.

The energy-saving and water-saving instant heat pump water heater is special in that: the compressor is provided with a compressor-assisted electric heating belt.

The present invention is an energy-saving and water-saving instant heat pump water heater. Due to the adoption of such a structure, the hot water after bathing flows into the water collection tank and enters the preheating heat exchanger to preheat the source water, and the cooled water still has residual heat. Then enter the hot water tank to exchange heat with the evaporator, effectively use the waste heat of the waste water after bathing, reduce the working pressure of the compressor, and achieve the purpose of energy saving.

Description of drawings

Figure 1 is a wireframe diagram of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, an energy-saving and water-saving instant heat pump water heater includes a compressor 1, a condenser, an expansion valve 2, an evaporator, a liquid storage tank 3, a water storage tank 4, a hot water tank 5 and a control device 13 , the condenser is set in the water storage tank 4, the evaporator is set in the hot water tank 5; the first temperature sensor 61 is set on the pipeline between the compressor 1 and the condenser, and the hot water outlet pipe of the water storage tank 4 is set There is a second temperature sensor 62; the pipeline between the evaporator and the liquid storage tank 3 is provided with a pressure sensor. The compressor 1, the pressure sensor, the first temperature sensor 61 and the second temperature sensor 62 are connected with the control device.

It also includes a water collection tank 7, a preheating heat exchanger 8 and a waste water collection tank 9, the preheating heat exchanger 8 includes a preheating water tank and a heat exchanger arranged in the preheating water tank; the heat exchanger can be spiral Tubes, or palisade-shaped tubes.

One end of the heat exchanger of the preheating heat exchanger 8 is communicated with the water source, and the other end is communicated with the water storage tank 4; The hot water tank 5 is connected; the hot water tank 5 is connected with the waste water tank 9 .

As a further improvement: it also includes a water pump 10, a first water flow control switch 111, a second water flow control switch 112,

The first water flow control switch 11 is arranged on the pipeline connecting the heat exchanger of the preheating heat exchanger 8 and the water source, and the water pump 10 is arranged on the pipe connecting the water collecting tank 7 and the preheating water tank of the preheating heat exchanger 8 On the road, the first water flow control switch 111 is connected with the water pump 10 and the control device;

The second water flow control switch 112 is arranged on the pipeline connecting the water collection tank 5 and the waste water collection tank 9, and the second water flow control switch 112 is connected with the compressor 1 and the control device.

When in use, when the water storage tank 4 flows out of hot water and enters with it, the water source is activated by the first water flow control switch 111, the water pump 10 is started, the water in the waste water collection tank 9 flows out through the second water flow control switch 112, and the compressor 1 Start working.

As a further improvement: it also includes a drainage pipeline, one end of the drainage pipeline communicates with the pipeline between the water pump 10 and the preheating water tank of the preheating heat exchanger 8, and the other end communicates with the second water flow control switch 112 and The pipeline between the hot water tanks 5 is connected;

A shut-off valve 12 is arranged on the drain line. When the water outlet temperature of the water storage tank 4 is high, the stop valve 10 can be manually opened, and the water in the water collection tank 7 is discharged directly from the waste water collection tank 9, and the water in the water collection tank 7 no longer enters the preheating water tank of the preheating heat exchanger 8; On the contrary, close the stop valve 10 or make the opening of the stop valve 10 smaller; the water in the water collecting tank 7 enters the preheating water tank of the preheating heat exchanger 8, then enters the collecting water tank 5, then enters the waste water collecting tank 9 and then discharges .

A stepper motor can also be arranged on the stop valve 10, and the stepper motor is connected with the control device.

The compressor 1 is provided with a compressor auxiliary electric heating belt, and the compressor auxiliary electric heating belt is connected with the control device. The setting of the auxiliary electric heating band of the compressor can store heat in the water storage tank to keep the temperature of the water in the water storage tank 4 . It is also possible to set a PTC heating belt on the compressor 1 .

The water pump 10 pumps the waste hot water in the water collection tank 7 into the preheating water tank of the preheating heat exchanger 8, so that the cold water from the upper water pipe and the waste water heat exchange, so that the water flowing into the condenser can be heated in the preheating heat exchanger 8. The heat exchanger 8 is preheated; the waste hot water passes through the hot water tank 5 to increase the temperature of the working medium in the evaporator, which not only recovers most of the heat of the waste water, but also improves the heating efficiency, COP The value can be as high as 10 (the COP value of other heat pumps is only about 4), which is 60% more economical than ordinary heat pump water heaters. , The water after use is also collected, which can be used for mopping the floor, flushing the toilet, etc. Therefore, it not only saves electric energy, but also saves water resources, and has good economic benefits and huge social benefits.

What has been described above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, some improvements and modifications can be made without departing from the principle of the present invention, which are also regarded as the protection scope of the present invention.

Claims (4)

1. energy-conservation, a water saving instant heating type heat pump water heater comprises compressor, condenser, expansion valve, evaporimeter, receiver, storage tank and heat collection water tank, and condenser is arranged in the storage tank, and evaporimeter is arranged in the heat collection water tank; It is characterized in that: also comprise a header tank, preheating heat exchanger and waste water header tank, described preheating heat exchanger comprises the preheating water tank and is arranged on the interior heat exchanger of preheating water tank;

Heat exchanger one end is communicated with the water source, the other end is communicated with storage tank; Header tank is communicated with the preheating water tank, and the preheating water tank is communicated with heat collection water tank; Heat collection water tank is communicated with the waste water header tank.

According to claim 1 a kind of energy-conservation, the water saving instant heating type heat pump water heater, it is characterized in that: also comprise a water pump, the first flow control switch, the second flow control switch,

Described the first flow control switch is arranged on heat exchanger and the pipeline that the water source is connected, and water pump is arranged on header tank and the pipeline that the preheating water tank is connected, and the first flow control switch is connected with water pump;

Described the second flow control switch is arranged on heat collection water tank and the pipeline that the waste water header tank is connected, and the second flow control switch is connected with compressor.

According to claim 2 a kind of energy-conservation, the water saving instant heating type heat pump water heater, it is characterized in that: also comprise a discharge pipe line, one end of described discharge pipe line and the pipeline connection between water pump and the preheating water tank, the pipeline connection between the other end and the second flow control switch and the heat collection water tank;

Stop valve is set on the discharge pipe line.

4. according to claim 1,2 or 3 described a kind of energy-conservation, the water saving instant heating type heat pump water heaters, it is characterized in that: be provided with compressor auxiliary electrical heater band on the described compressor.

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