CN204494589U - A kind of circulation directly-heated mixing hydraulic module - Google Patents

Abstract

The utility model relates to the field of water heater equipment, in particular to a circulating direct heating mixed hydraulic module. A circulating direct heating hybrid hydraulic module, including a box body, and a three-way valve, a one-way valve, a micro switch, a water inlet pipe, a water supply pipe, a first water outlet pipe, a second water outlet pipe and a third outlet pipe arranged in the box body. water pipe; the water inlet pipe is connected to the water inlet a of the three-way valve, the water outlets b and c of the three-way valve are respectively connected to the first water outlet pipe and the second water outlet pipe, and the water outlet c of the three-way valve is also connected to The water inlet d of the one-way valve is connected, and the water outlet e of the one-way valve is connected with the third water outlet pipe; the water supply pipe is connected with the third water outlet pipe, and the micro switch is set on the water supply pipe. The hot water system using the hydraulic module has two hot water supply methods of direct heating and circulation, and can be operated under simple control with high efficiency and high reliability.

Description

A circulating direct heating hybrid hydraulic module

technical field

The utility model relates to the field of water heater equipment, in particular to a circulating direct heating mixed hydraulic module.

Background technique

The heat pump water heater adopts the reverse Carnot cycle, uses the heat exchanger to absorb the heat of the low-temperature heat source, and uses the compressor to pump it into the water. Relevant preferential policies have been introduced, and according to the form of hot water provided, it can be divided into direct heating type and circulating heating type.

Among them, the direct heating means that the cold water directly enters the heat pump water heater, and the latter outputs hot water to the user or the water tank side, which has the characteristics of high efficiency and energy saving, and the reduction of the heat preservation water tank. The tap water supply pressure varies widely in different regions, and the temperature range of the incoming water from winter to summer is very large, which brings great challenges to the outlet water temperature.

The circulation heating type heat pump water heater heats the cold water in the heat preservation water tank to the set temperature through circulation heating, which has the advantages of simple control and reliable system, but when the water temperature reaches a high level, the operating environment of the compressor is harsh and the energy efficiency ratio is very low. Low. The water supplement is on the side of the thermal insulation water tank. When the user uses it, it is easy to cause the temperature of the water tank to drop rapidly due to the addition of cold water and the agitation of the circulation pump to the entire water tank; After adding cold water at 5°C, the water temperature in the water tank is (35*50+15*5)/50=36.5°C, and the overall water temperature of the water tank is lower than 40°C, which cannot be used by users normally. Utilization rates are often less than 30%. In addition, if there is too much water stored in the heat preservation water tank, it will be wasted due to cooling when not in use.

Contents of the invention

In order to solve the above problems, the purpose of this utility model is to provide a circulating direct heating hybrid hydraulic module. The hot water system using this hydraulic module has two hot water supply methods: direct heating and circulating hot water, and can be efficient and highly reliable. Simple control operation under high performance.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A circulating direct heating hybrid hydraulic module, including a box body, and a three-way valve, a one-way valve, a micro switch, a water inlet pipe, a water supply pipe, a first water outlet pipe, a second water outlet pipe and a third outlet pipe arranged in the box body. water pipe; the water inlet pipe is connected to the water inlet a of the three-way valve, the water outlets b and c of the three-way valve are respectively connected to the first water outlet pipe and the second water outlet pipe, and the water outlet c of the three-way valve is also connected to The water inlet d of the one-way valve is connected, and the water outlet e of the one-way valve is connected with the third water outlet pipe; the water supply pipe is connected with the third water outlet pipe, and the micro switch is set on the water supply pipe.

As a preference, the third outlet pipe is also connected to an expansion tank through a branch pipe, and a safety valve is also provided on the branch pipe between the expansion tank and the third outlet pipe; when the heated volume of water in the system increases, the expansion tank is used to Water storage and decompression; when the volume of water in the system decreases due to cooling, the expansion tank is used to replenish water and supply pressure to the system; thus ensuring the normal and safe operation of the system.

The utility model adopts the above-mentioned technical scheme. The circulating direct heating hybrid hydraulic module is used to be installed on the hot water system, and the hot water system needs to include a water tank and a heat pump water heater; The outlets of the water heaters are connected to each other, the first outlet pipe and the second outlet pipe are respectively connected to the water tank, and the third outlet pipe is connected to the water inlet of the heat pump water heater; by controlling the flow and velocity of the three-way valve, and the opening and closing of the micro switch, It can simply and effectively guarantee the stability of the water temperature of the water tank, and at the same time can improve the utilization rate of the water tank and reduce the volume of the water tank.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Figure 2 is a schematic view of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the preferred embodiment of the present utility model is described in further detail.

A circulating direct heating hybrid hydraulic module as shown in Figure 1, including a box body 1, and a three-way valve 11, a one-way valve 12, a micro switch 13, a water inlet pipe 14, and a water supply pipe 15 arranged in the box body 1 , the first water outlet pipe 16, the second water outlet pipe 17 and the third water outlet pipe 18; the water inlet pipe 14 is connected with the water inlet a of the three-way valve 11, and the water outlets b and c of the three-way valve 11 are respectively connected with the first water outlet The first water outlet pipe 16 and the second water outlet pipe 17 are connected, the water outlet c of the three-way valve 11 is also connected with the water inlet d of the one-way valve 12, and the water outlet e of the one-way valve 12 is connected with the third water outlet pipe 18. Connection; the water supply pipe 15 is connected to the third water outlet pipe 18, and the micro switch 13 is set on the water supply pipe 15. The third outlet pipe 18 is also connected to an expansion tank 19 through a branch pipe, and a safety valve 10 is also provided on the branch pipe between the expansion tank 19 and the third outlet pipe 18; when the heated volume of water in the system increases, the expansion tank 19 is used for water storage and decompression; when the volume of water in the system is reduced due to cooling, the expansion tank 19 is used for replenishing water and supplying pressure to the system; thereby ensuring the normal and safe operation of the system.

As shown in Figure 2, during installation, the circulating direct heating hybrid hydraulic module is used to be installed on the hot water system. The hot water system needs to include a water tank and a heat pump water heater. The outlets of the water outlets communicate with each other, the first outlet pipe 16 and the second outlet pipe 17 communicate with the water tank 3 respectively, and the third outlet pipe 18 communicates with the water inlet of the heat pump water heater 2. In this structure, which has different usage modes:

1), cycle preheating mode : first heat the water inside the exchange water tank according to the user's needs, then the heat pump water heater is turned on, and the micro switch is turned off; the water flows from the heat pump water heater to the water inlet a of the three-way valve, The water outlet b of the three-way valve flows into the water tank, and the water tank flows out from the second outlet pipe 17 through the one-way valve and then returns to the heat pump water heater; that is, the hot water in the water tank enters the heat pump water heater to be heated and then returns to the water tank, and the water temperature reaches the set temperature.

2), water discharge mode : At this time, the heat pump water heater does not start, the micro switch is closed, and the water flows sequentially through the water supply pipe 15, the heat pump water heater 2 and the three-way valve 11, and the water outlet c of the three-way valve 11 passes through the second outlet Water pipe 17 enters in the water tank.

3), direct heating mode : when the water tank starts to discharge water, the water temperature detected by the temperature probe in the water tank reaches the opening condition of the heat pump water heater, the heat pump water heater starts, and the micro switch closes; the water flows through the replenishment pipe 15, heat pump water heater 2 and three Through the valve 11, and flow out from the water outlet c of the three-way valve 11, a part of hot water enters the water tank through the second outlet pipe 17, and another part of hot water passes through the one-way valve and mixes with supplementary water to enter the next cycle. Assume that the water temperature of the water tank is 45°C, the circulation flow rate of the system is 50L/min, and the discharge flow rate and replenishment flow rate of the system are both 10L/min; 50L/min, of which 10L/min 45°C hot water enters the water tank through the second outlet pipe 17 for water discharge, and 40L/min 45°C hot water passes through the check valve and mixes with supplementary water 10L/min 10°C cold water Enter the next cycle, so as to ensure that all the hot water released in the water tank is 45°C.

Claims (2)

1. A circulating direct heating hybrid hydraulic module, characterized in that it includes a box body, and a three-way valve, a one-way valve, a micro switch, a water inlet pipe, a water supply pipe, a first water outlet pipe, and a second water supply pipe arranged in the box body. The water outlet pipe and the third water outlet pipe; the water inlet pipe is connected with the water inlet a of the three-way valve, and the water outlets b and c of the three-way valve are respectively connected with the first water outlet pipe and the second water outlet pipe, and the three-way valve The water outlet c of the one-way valve is also connected to the water inlet d of the one-way valve, and the water outlet e of the one-way valve is connected to the third water outlet pipe; the water supply pipe is connected to the third water outlet pipe, and the micro switch is set at pipe on. 2. A circulating direct heating hybrid hydraulic module according to claim 1, characterized in that: the third outlet pipe is also connected to an expansion tank through a branch pipe, and the branch pipe between the expansion tank and the third outlet pipe is also provided with There is a safety valve.