CN203349574U - Heat recovery heat-pump water heater - Google Patents

Abstract

The utility model discloses a heat recovery heat pump water heater, which comprises a heat pump module, a heat recovery module and a hot water supply module. The expansion valve, the plate condenser and the plate evaporator, the compressor, the condensing side of the plate condenser, the thermal expansion valve, and the heat absorbing side of the plate evaporator are connected in sequence to form a circulation system. When working, the heat recovery module absorbs the waste heat from the bathing wastewater and transfers it to the heat pump module , the heat pump module absorbs heat and generates high temperature to transfer to the hot water supply module, the hot water supply module absorbs heat to generate hot water, when the water temperature in the hot water tank reaches the requirement, the heat pump water heater stops working. The utility model makes full use of waste water waste heat, saves energy and reduces emissions. The heat pump module has a simple structure, no wearing parts (such as a four-way reversing valve), and does not need to be in contact with tap water and waste water. It is not easy to scale and has high reliability.

Description

A heat recovery heat pump water heater

technical field

The utility model relates to a heat pump water heater, in particular to a heat recovery heat pump water heater. the

Background technique

With the development of the economy, people's living standards are constantly improving, and the simultaneous demand for air conditioning and hot water in hotels, clubs, bathing centers and other buildings makes the application of heat pump water heaters increasingly widespread. the

Traditional air source heat pump water heaters have low efficiency and are greatly affected by the ambient temperature during use. When used in winter, the water output is obviously affected by low temperature, and the efficiency is very low. Although ordinary water source heat pump water heaters are better in energy efficiency than air source heat pump water heaters, they cannot be popularized due to well drilling permits or restrictions on surface water quality and water quantity. very high. Moreover, heat recovery cannot be performed on high-temperature wastewater from hotels, clubs, and bathing centers, resulting in a large amount of waste of heat energy. the

In addition, the traditional heat pump water heater condenser is prone to fouling, and it is inconvenient to clean. With the prolongation of use time, the energy efficiency of the heat pump water heater will be further deteriorated. the

Utility model content

The technical problem to be solved by the utility model is that the traditional heat pump water heater has poor energy efficiency, easy scaling and inconvenient cleaning. the

The utility model adopts the following technical solutions for solving the above-mentioned technical problems:

A heat recovery heat pump water heater, including a heat pump module, a heat recovery module and a hot water supply module. The heat recovery module absorbs waste heat from bathing wastewater and transfers it to the heat pump module. The heat pump module absorbs heat and generates high temperature and transfers it to the hot water supply module. The hot water supply module Absorb heat to generate hot water. The heat pump module includes a compressor, a thermal expansion valve, a plate condenser and a plate evaporator. The compressor, the condensing side of the plate condenser, the thermal expansion valve, and the heat-absorbing side of the plate evaporator are connected in sequence to form a circulation system.

As a further optimization scheme of the utility model, the heat recovery module includes a plate heat exchanger, a water pump, a waste water tank, a primary filter, and a secondary filter. One end of the condensing side of the plate heat exchanger is connected sequentially, the other end of the condensing side of the plate heat exchanger is connected to the sewer, and the heat absorption side of the plate heat exchanger is connected to the heat release side of the plate evaporator in the heat pump module through a circulating pump. the

As a further optimization scheme of the utility model, the hot water supply module includes a plate heat exchanger, two water pumps, a filter, a hot water tank, and an electric valve, one of which is connected to the heat absorbing side of the plate heat exchanger, the hot water tank, Filters are connected sequentially to form a circulation system. The hot water tank is connected to the tap water pipe through an electric valve, and connected to the hot water supply pipe through another water pump. connected to the heat sink side of the device. the

As a further optimization solution of the utility model, the plate heat exchangers in the heat recovery module and the plate heat exchanger in the hot water supply module are all detachable plate heat exchangers. the

Compared with the prior art by adopting the above technical scheme, the utility model has the following technical effects:

1. The heat of bathing wastewater is fully utilized, and the energy efficiency is significantly improved compared with traditional air source heat pumps and water source heat pumps, and the effect of energy saving and emission reduction is obvious;

2. Secondary heat exchange is adopted, the heat pump module does not need to be in contact with tap water and waste water, it is not easy to scale, and does not affect heat exchange;

3. The heat pump module has a simple structure, no wearing parts (such as four-way reversing valve), and high reliability;

4. The detachable plate heat exchanger is adopted, and when cleaning is required, the heat pump device is not involved, and it is easy to disassemble and wash;

5. The heat recovery module adopts the design of the secondary filter, which makes the cleaning cycle of the plate exchange longer.

Description of drawings

Figure 1 is a schematic diagram of the heat recovery heat pump water heater system. the

Detailed ways

Below in conjunction with accompanying drawing, technical scheme of the present utility model is described in further detail:

As shown in Figure 1, the utility model discloses a heat recovery heat pump water heater, which includes a heat pump module a, a heat recovery module b, and a hot water supply module c, wherein the heat pump module includes a compressor 1, a thermal expansion valve 2, and a plate condenser 3 and plate evaporator 4, compressor 1, plate condenser 3 condensing side, thermal expansion valve 2, and plate evaporator 4 endothermic side are connected in turn to form a circulation system, and the working process is as follows:

Step 1), the refrigerant is compressed by the compressor 1 into high-temperature and high-pressure steam, enters the plate condenser 3 to cool and condense to release heat, and becomes a liquid refrigerant, and the heat released by it is transferred to the hot water supply module c through the circulation pump 5;

Step 2), the refrigerant condensed into liquid is throttled and decompressed by thermal expansion valve 2 to become low-pressure liquid, then enters plate evaporator 4, absorbs heat in bathing wastewater through circulation pump 6, and is vaporized into low-pressure steam;

Step 3), low-pressure steam is sucked by compressor 1, and step 1) is performed again.

Heat recovery module b includes detachable plate heat exchanger 13, water pump 14, waste water tank 17, primary filter 16, secondary filter 15, secondary filter 15, primary filter 16, water pump 14, plate heat exchanger One end of the heat release side of 13 is connected sequentially, the other end of the heat release side of the plate heat exchanger 13 is connected to the sewer, and the heat absorption side of the plate heat exchanger 13 is connected to the heat release side of the plate evaporator 4 in the heat pump module a through the circulation pump 6 Connected, when the heat pump water heater is working, the water pump 14 pumps the bathing wastewater from the waste water pool 17 to the detachable plate heat exchanger 13 through the primary filter 16 and the secondary filter 15, and transfers heat to the heat pump module b through the circulation pump 6 , Bath waste water is discharged from the sewer after heat is absorbed. the

The hot water supply module includes a detachable plate heat exchanger 7, a filter 10, a hot water tank 11, an electric valve 12 and two water pumps 8, 9, one of which is connected to the heat-absorbing side of the plate heat exchanger 7, The hot water tank 11 and the filter 10 are sequentially connected to form a circulation system. The hot water tank 11 is connected to the tap water pipe through an electric valve 12, and connected to the hot water supply pipe through another water pump 9. The heat release of the plate heat exchanger 7 The side is connected to the heat-absorbing side of the plate condenser 3 in the heat pump module a through the circulating pump 5. When the heat pump water heater is working, a water pump 8 pumps the water in the hot water tank 11 to the detachable plate heat exchanger through the filter 10 7 Heating, when the water temperature in the hot water tank 11 reaches the requirement, the heat pump water heater stops working, and when the water needs to be supplemented, tap water is injected into the hot water tank 11 through the electric valve 12; when hot water is needed, another water pump 9 will The hot water in the hot water tank 11 is pumped out, and the bathing waste water is led to the bathing waste water reservoir 17 of the heat recovery module b through the collection pipeline, and the heat is absorbed and discharged through the sewer. the

The primary filter 15 and secondary filter 16 in the heat recovery module b need to be cleaned regularly. When the efficiency of the heat pump water heater has been reduced for a long time, the detachable plate heat exchangers 7 and 13 can be cleaned. the

Claims (4)

1. a heat-recovery heat pump water heater, it is characterized in that comprising heat pump module, heat recovery module and hot water supply module, heat recovery module absorbs shower waste water residual heat and passes to heat pump module, heat pump module absorbs heat and produces high temperature and passes to the hot water supply module, the hot water supply module absorbs heat generation hot water, wherein heat pump module comprises compressor, heating power expansion valve, plate-type condenser and plate-type evaporator, and compressor, plate-type condenser condensation side, heating power expansion valve, plate-type evaporator heat absorbing side are connected to form the circulatory system successively.

2. a kind of heat-recovery heat pump water heater according to claim 1, it is characterized in that described heat recovery module comprises plate type heat exchanger, water pump, wastewater disposal basin, filter, aflter-fillter, aflter-fillter is placed in wastewater disposal basin, and be connected with an end of filter, water pump, plate type heat exchanger condensation side order successively, the other end of plate type heat exchanger condensation side is connected to sewer, and the plate type heat exchanger heat absorbing side is connected with the heat release side of plate-type evaporator in heat pump module by circulating pump.

3. a kind of heat-recovery heat pump water heater according to claim 2, it is characterized in that described hot water supply module comprises plate type heat exchanger, two water pumps, filter, boiler, motor-driven valve, the heat absorbing side of one of them water pump and plate type heat exchanger, boiler, filter order successively are connected to form the circulatory system, boiler is connected with running water pipe by a motor-driven valve, and be connected with the hot water supply pipeline by another water pump, the heat release side of plate type heat exchanger is connected with the heat absorbing side of plate-type condenser in heat pump module by circulating pump.

4. a kind of heat-recovery heat pump water heater according to claim 3, it is characterized in that: the plate type heat exchanger in the plate type heat exchanger in described heat recovery module and hot water supply module is detachable plate heat exchanger.

Images