CN207146904U - Domestic waste hot water source heat pump hot water system with water collecting tank device - Google Patents

Abstract

The utility model discloses a domestic waste water source heat pump hot water system with a sump device, which belongs to the technical field of hot water water supply and drainage devices. The purpose is to provide a hot water water supply and drainage device for recycling waste heat in waste water. Specifically, the heat pump water heating device includes a heat pump compression condensing unit, an insulated hot water storage tank, and a sump assembly. The sump assembly includes a sump, a heat pump evaporator, and an agitator. The sump includes an insulated box body, an upper cover plate with holes, a water replenishment port, an overflow port, a drain port, and a sewage discharge port, and the heat pump compression condensing unit is connected to the heat preservation heat storage tank and the sump respectively. The hot water device of the utility model is more convenient to use and has higher efficiency, and is especially suitable for installation and use in places such as families, collective dormitories, and hotels.

Description

A domestic waste water source heat pump hot water system with a sump device

technical field

The utility model specifically relates to a domestic waste water source heat pump hot water system with a sump device, which belongs to the technical field of hot water water supply and drainage devices.

Background technique

With the improvement of the level of economic development, the amount of hot water used by residents has gradually increased, especially the amount of hot water used in showers. However, a large amount of waste heat is discharged with shower wastewater, resulting in energy waste. There are not many studies on the use of heat pumps to recover waste heat from household wastewater such as households, dormitories, and hotels.

In another utility model patent application of the applicant, a heat pump water heating device for waste heat of domestic wastewater is provided. On the basis of retaining its basic technology, this application improves the sump so that the heat pump water heating device It is more convenient to use and more efficient.

Utility model content

Therefore, the purpose of this utility model is to provide a heat pump water heating device that utilizes a convenient and efficient heat pump to recover waste heat from domestic waste water such as homes, collective dormitories, and hotels.

Specifically, the domestic waste heat source heat pump water heating device with a sump device includes a heat pump compression condensing unit, a thermal insulation heat storage tank, and a sump assembly. The sump assembly includes a sump, a heat pump evaporator, an agitator, and a heat pump The evaporator and agitator are arranged in the water collection pool, and the heat preservation and heat storage tanks are respectively connected to the tap water pipe and the hot water device. The water collection pool is placed under the hot water device. The upper cover plate, the water replenishment port, the overflow port, the drain port and the sewage discharge port, the upper cover plate is provided with a drain hole, the water replenishment port and the overflow port are arranged on the side panel of the insulation box, the drain port and The sewage outlets are all arranged at the bottom of the heat preservation box, and the heat pump compression condensing unit is respectively connected to the heat preservation heat storage tank and the sump.

Further, the volume of the heat preservation box of the sump pool is not less than 120 liters, and the height is not less than 350 mm.

Further, the heat pump compression condensing unit includes a compressor, a condenser, a dry filter, a throttling device, and a circulating water pump. The port is connected to the dry filter, the throttling device and the evaporator of the heat pump in turn, and the condenser water circuit and the circulating water pump together form a circulating water circuit flowing through the interior of the heat preservation and heat storage tank.

Further, the heat preservation box of the sump pool is made of 3mm thick stainless steel plate, and the bottom and surrounding of the heat preservation box are provided with an insulation layer

Further, the upper cover plate is arranged as two leaves folded in half, and the upper cover plate is provided with drain holes with a diameter of 20 mm at equal intervals.

Further, the number of the drains is two, the automatic drain on the lower part of the side panel of the insulation box is provided with a solenoid valve, and the manual drain is provided with a shut-off valve.

Further, the water supply port arranged on the top of the side panel of the box body is connected to a water supply pipe or a running water pipe.

The beneficial effect of the utility model is that: the water collecting tank device of the utility model for the domestic waste water heat pump water heating device collects domestic waste hot water with a higher temperature than natural river well water and municipal water for the water source heat pump water heating device, Provide a high-temperature heat source for the heat pump, improve the heating performance of the heat pump, improve the energy-saving effect of the heat pump, conveniently provide domestic hot water for many people, and at the same time, use the waste heat to achieve energy saving and emission reduction. In the utility model, through the rational design of the sump, the whole heat pump water heating device is more compact, more convenient to use, and more efficient. The hot water device of the utility model is especially suitable for installation and use in places such as families, collective dormitories, and hotels.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the new domestic waste water source heat pump hot water system with a sump device;

Fig. 2 is the top view of sump;

Fig. 3 is the front view of sump;

Fig. 4 is a schematic diagram of the composition of the heat pump compression condensing unit.

The reference signs are as follows: 1. heat pump compression condensing unit, 2. thermal insulation hot water storage tank, 3. sump assembly, 4. sump, 5. heat pump evaporator, 6. agitator, 7. tap water pipe, 8. Hot water device, 9. Insulation box body, 10. Upper cover plate, 11. Water supply port, 12. Overflow port, 13. Water collection tank leg, 14. Sewage outlet, 15. Drainage hole, 16. Compressor, 17 , Condenser, 18, Dry filter, 19, Throttling device, 20, Circulating water pump, 21, Manual/automatic drain, 22, Solenoid valve.

Detailed ways

The specific implementation of the present utility model is described below in conjunction with embodiment accompanying drawing:

As shown in FIG. 1 , the domestic waste water source heat pump water heating device with a sump device includes a heat pump compression condensing unit 1 , an insulated heat storage tank 2 , and a sump assembly 3 .

As shown in Fig. 2 and Fig. 3, the sump assembly 3 includes a sump 4, a heat pump evaporator 5, and an agitator 6. The heat pump evaporator 5 and agitator 6 are arranged in the sump 4, and the heat preservation and heat storage tank 2 The water pipe 7 and the hot water device 8 are connected respectively. In the present embodiment, the hot water device 8 is a shower, and the sump 4 is placed below the hot water device 8. The sump 4 includes an insulated box body 9, a loam cake Plate 10, water replenishment port 11, overflow port 12, manual/automatic drain port 21, sewage outlet 14, upper cover plate 10 is provided with drain hole 15, water replenishment port 11 and overflow port 12 are arranged on the side panel of heat preservation box 9 In the upper part, the manual/automatic drainage port 21 is arranged at the bottom of the heat preservation box 9 or the bottom surface of the side panel, the sewage outlet 14 is arranged at the bottom of the heat preservation box 9, and the heat pump compression condensing unit 1 is respectively connected with the heat preservation water storage tank 2 and the sump 3.

In this embodiment, the volume of the insulated box 9 is not less than 120 liters, and the height is not less than 350 mm.

As a specific structural form provided in this embodiment, as shown in Figure 4, the heat pump compression condensing unit 1 includes a compressor 16, a condenser 17, a dry filter 18, a throttling device 19 and a circulating water pump 20, the condenser 17 The air inlet is connected to the compressor 16 and the evaporator 5 of the heat pump in sequence, and the liquid outlet of the condenser 17 is connected to the dry filter 18, the throttling device 19 and the evaporator 5 of the heat pump in sequence, and the water circuit of the condenser 17 and the circulating water pump 20 are composed Flow through the circulating water circuit inside the heat preservation hot water storage tank 3 .

In this embodiment, the following preferred implementation manners are also provided:

Preferably, the insulated box body 9 is made of a 3mm thick stainless steel plate, and the bottom and surroundings of the insulated box body 9 are provided with an insulating layer

Preferably, the upper cover plate 10 is arranged as two leaves folded in half, and the upper cover plate 10 is provided with drain holes 15 with a diameter of 20 mm at equal intervals.

Preferably, the number of manual/automatic drains 21 is two, the lower part of the side panel of the insulation box 9 is provided with an automatic drain, the automatic drain is provided with a solenoid valve 22, and the manual drain is controlled with a stop valve.

Preferably, the water replenishment port 11 arranged on the top of the side panel of the insulated box body 9 is connected to a water supply pipe or a running water pipe.

In Fig. 1 , the sump legs 13 are used to support the sump 4, and the manual/automatic drain 21 can be manually, automatically or combined with manual and automatic according to actual needs.

The working principle of the device is:

The domestic waste water source heat pump water heating device with a sump device collects domestic waste hot water through the sump 4, and through the operation of the compressor 16 and the heat transfer of the condenser 17 and the evaporator 5 of the heat pump, the bathing waste in the sump 4 is The heat of the hot water is transferred to the lower-temperature domestic water that exchanges heat with the condenser 17, and the tap water in the heat-retaining heat storage tank 2 is gradually heated up through the circulating water pump 20. When the user needs to use hot water, open the mixing valve of the hot water outlet pipe, and the hot water in the heat preservation water storage tank 2 will flow to the water point along the outlet pipe after being boosted by gravity or by an automatic booster pump . Hot water and cold tap water meet at the mixing valve, and users can adjust the water temperature and volume according to their own comfort requirements. The waste hot water after use falls into the sump 4 for collection and reuse, and the waste water after absorbing heat and cooling down is discharged into the sewer through the manual/automatic drain 21 of the sump 4 .

The thermal insulation water storage tank 2 of the domestic waste water source heat pump water heating device can be in a high water level state or in any low water level state. An auxiliary electric heater is installed in the heat preservation water storage tank 2. When the user needs to use hot water, the hot water in the heat preservation water storage tank 2 shall be filled up or filled to half. If the temperature is insufficient and there is no waste hot water in the sump 4, turn on the electric heater to heat the tap water in the heat storage tank; The heat is transferred to the insulated hot water storage tank 2 for preservation.

The foregoing is a preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present utility model. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (7)

1. A domestic waste heat source heat pump hot water system with a sump device, comprising a heat pump compression condensing unit, an insulated heat storage tank, and a sump assembly, characterized in that the sump assembly includes a sump, heat pump evaporation The evaporator, the agitator, the heat pump evaporator and the agitator are arranged in the water collection tank, and the heat preservation and storage tanks are respectively connected to the tap water pipe and the hot water device. The water collection tank is placed under the hot water device. The pool includes an insulated box body, an upper cover plate, a water replenishment port, an overflow port, a drain port, and a sewage discharge port. The upper cover plate is provided with a drain hole, and the water replenishment port and the overflow port are arranged on the side panel of the insulated box body. , the sewage outlet is arranged at the bottom of the heat preservation box, the drain is arranged at the bottom of the heat preservation box or the bottom surface of the side panel, and the heat pump compression condensing unit is respectively connected to the heat preservation water storage tank and the evaporator of the heat pump in the sump, and the heat preservation An auxiliary electric heater is installed in the hot water storage tank. 2. The domestic waste heat source heat pump hot water system with a sump device as claimed in claim 1, wherein the volume of the sump heat preservation box is not less than 120 liters, and the height is not less than 350 mm. 3. The domestic waste water source heat pump hot water system with a sump device as claimed in claim 1, wherein the heat pump compression condensing unit includes a compressor, a condenser, a dry filter, a throttling device and a circulating water pump , the air inlet of the condenser is connected to the evaporator of the compressor and the heat pump in turn, the liquid outlet of the condenser is connected to the dry filter, the throttling device and the evaporator of the heat pump in turn, and the water circuit of the condenser and the circulating water pump together form a flow through Circulating water circuit inside the heat preservation hot water storage tank. 4. The domestic waste heat source heat pump hot water system with a sump device as claimed in claim 1, characterized in that, the heat preservation box of the sump is made of a 3mm thick stainless steel plate, and the bottom and surrounding of the box are provided with Insulation. 5. The domestic waste water source heat pump hot water system with a sump device as claimed in claim 1, characterized in that, the upper cover plate is arranged as two leaves folded in half, and the upper cover plate is provided with equidistant 20mm diameter Sinks. 6. The domestic waste water source heat pump hot water system with a sump device as claimed in claim 1, characterized in that the number of said drains is two, one is a manual drain with a shut-off valve, and the other is a drain. Automatic drain with solenoid valve. 7. The domestic waste heat source heat pump hot water system with a sump device as claimed in claim 1, characterized in that the water replenishment port provided on the side panel of the sump heat preservation box is connected to a water supply pipe or a tap water pipe.