CN201104021Y - Circulation heating type heat supply system - Google Patents

Abstract

The utility model discloses a circulation adds hot type heating system relates to in heat pump technical field. The heat pump water heater comprises a heat pump host, a water storage tank and an installation pipeline, wherein the water storage tank is provided with a water inlet pipe, a water supply pipe and a temperature control head for sensing the temperature of water in the tank, the water storage tank is also provided with a water suction pipe and a water return pipe which are connected with the heat pump host and form a loop, and the heat pump water heater is characterized in that the water supply pipe is also connected with a water suction end of the heat pump host. The water suction pipe is provided with a microcirculation regulating valve, and the heat pump host comprises a water pump, a heat exchanger and a controller. When the micro-circulation water pump is used, water entering the heat pump main machine comes from two passages, one passage directly comes from the water storage tank, the other passage enters the heat pump main machine after passing through the water supply pipe, the opening degree of the micro-circulation adjusting valve is adjusted, the proportion of the two passages of water entering the water pump can be controlled, and the micro-circulation flow required by a user is achieved. Compared with the prior heat supply system, the utility model has the advantages of cyclic heating, temperature maintenance, convenient installation and little heat energy loss.

Description

Hydronic heating system

【Technical field】

The utility model relates to a heat supply system, in particular to a circulation heating type heat supply system, which belongs to the technical field of heat pumps.

【Background technique】

In traditional home decoration, water heaters are only installed with a water pipe that does not form a loop from the heating source or water storage device to the end of use. In this way, when using water, the cold water in the pipe must be drained before hot water can be used, which is time-consuming and water-consuming. With the improvement of living standards, people's requirements for comfort are also increasing. More and more household water supply systems have pre-buried hot water circulation pipes, but the existing heat pump water heater systems do not have hot water circulation functions, let alone There are three main disadvantages of the switch loop:

1. It cannot meet the requirements of more and more users, and the water heater and new home decoration cannot be used;

2. When using hot water, it takes 10 seconds to 1 minute to drain the cold water in the pipe before using hot water, which is time-consuming and water-consuming, and the comfort is poor;

3. If the existing heat pump water heater system is to be matched with a home with circulating pipes, it can only be added by engineering construction method to pump the return water into the water storage device. However, the water pump runs continuously without control, and the circulation The amount of water is not controlled, the loss of heat energy is large, the waste of electric energy is caused, and the main engine is frequently started at the same time.

The utility model is mainly designed in order to overcome the above deficiencies existing in the prior art.

【Content of utility model】

The purpose of the utility model is to provide a heat supply system capable of circulating heating and temperature maintenance, which can overcome the deficiencies in the prior art, has a simple structure and is easy to install.

In order to solve the above-mentioned technical problems, the utility model adopts such a technical solution:

A circulating heating heating system includes a heat pump host and a water storage tank. The water storage tank is provided with a water inlet pipe for providing water source and a water supply pipe for providing water for users. The water storage tank is also provided with a A water suction pipe and a water return pipe that are connected to each other and form a circulation loop are provided to provide heating, and the water supply pipe is also connected to the water inlet end of the heat pump main unit through a water circulation return pipe. The method of connecting the water supply pipe to the suction end of the heat pump host can realize the circulation heating and temperature maintenance of the water in the water supply pipe when the heat pump host is working.

According to the above-mentioned circulating heating heating system, it is characterized in that a microcirculation regulating valve is connected to the water suction pipe.

From the above-mentioned circulation heating heating system, it is characterized in that the microcirculation regulating valve is a throttling valve. The throttling valve can adjust the flow of water entering the heat pump main unit in the water suction pipe, thereby controlling the ratio of the two channels of water entering the heat pump main unit and reducing heat energy loss.

According to the aforesaid circulating heating heating system, it is characterized in that the heat pump host includes a water pump, a heat exchanger and a controller, and the controller command output terminals are respectively connected to the water pump and the heat exchanger.

The above-mentioned circulating heating heating system is characterized in that one end of the water suction pipe is connected to the water inlet end of the water pump, and the other end is connected to the water storage tank; one end of the return water pipe is connected to the water outlet end of the heat exchanger , the other end is connected with the water storage tank; the water outlet end of the water pump is connected with the water inlet end of the heat exchanger.

The above-mentioned circulating heating heating system is characterized in that the water storage tank is also equipped with a temperature control head for sensing the water temperature in the tank, and the signal output end of the temperature control head is connected to the controller.

Compared with the prior art, the utility model has the following advantages: it can be matched with the latest home furnishing to meet the user's requirements for comfort and ease of use; a single water pump is used to realize two cycles of heating and temperature maintenance, and the cost is lower, and the installation and maintenance Simple; according to the user's actual use environment, installation requirements and pipeline length, the relevant parameters of the controller can be set, so as to maintain the water temperature in the pipeline without causing energy loss due to excessive circulation.

【Description of drawings】

The structure of the present utility model will be further described below according to the accompanying drawings and specific embodiments.

Figure 1 is a schematic diagram of a circulating heating heating system;

Fig. 2 is a schematic diagram of the cycle of a circulating heating heating system;

Description of drawing number: 1 heat pump host 2 water supply pipe

                                                                        

5 Suction pipe 6 Water storage tank

7 water inlet pipe 8 controller

     9 Microcirculation regulating valve 10 Water pump

          11 heat exchangers

【Detailed ways】

Below in conjunction with accompanying drawing, the utility model is described in detail.

A circulating heating heating system, including a heat pump host 1 and a water storage tank 6, on the water storage tank 6 is provided with a water inlet pipe 7 for providing water source and a water supply pipe 2 for providing water for users, in the water storage tank 6 is also provided with a water suction pipe 5 and a water return pipe 3 that are connected to the heat pump main unit 1 that provides heating and form a circulation loop. .

In the system, one end of the suction pipe 5 is connected to the water storage tank 6, and the other end is connected to the water inlet of the water pump 10; one end of the return pipe 3 is connected to the water storage tank 6, and the other end is connected to the water outlet of the heat exchanger 11; Above, the valve is any valve that controls flow; the water supply pipe 2 is also connected to the user.

When the water source enters the water storage tank 6 from the water inlet pipe 7, the controller 8 is connected to the power supply and the relevant parameters are set, the heat pump host 1 starts to work, and the water flow through the heat pump host 1 comes from two paths, one is from the water storage tank 6 Enter the heat pump main unit 1, and the other way is to enter the heat pump main unit 1 after passing through the water supply pipe 2; the temperature control head 4 transmits the water temperature signal in the water storage tank 6 to the controller 8, when the water temperature is lower than the set value, the heat pump main unit 1 is in the controller Under the control of 8, the water is heated and circulated. At this time, the heat exchanger 11 and the water pump 10 work at the same time; Set time interval) temperature maintenance cycle operation, at this moment, the water pump 10 works, and the heat exchanger 11 does not work.

For different users, there are also differences in installation conditions, which require different pressure differences to realize the water temperature circulation in the water supply pipe 2 . At this time, only need to adjust the opening degree of the microcirculation regulating valve 9 to adjust the flow ratio of the two paths of water entering the heat pump host 1 to achieve the required microcirculation flow rate, so as to maintain the water temperature in the pipeline without excessive circulation. large energy loss. If the cross-sectional area of the water supply pipe 2 is large and the length is long, a large pressure difference is required to realize the water circulation therein. At this time, the opening of the microcirculation regulating valve 9 is reduced; otherwise, only a small pressure difference is required. , to relatively increase the opening of the microcirculation regulating valve 9 .

Claims (6)

1. A circulating heating heating system, comprising a heat pump host (1) and a water storage tank (6), the water storage tank (6) is provided with a water inlet pipe (7) for providing water sources and a water supply for users The water supply pipe (2) is characterized in that the water storage tank (6) is also provided with a water suction pipe (5) and a water return pipe (3) connected to the heat pump host (1) providing heating and forming a circulation loop , the water supply pipe (2) is connected to the water inlet end of the heat pump host (1) through a water circulation return pipe (12). 2. A circulating heating type heating system according to claim 1, characterized in that a microcirculation regulating valve (9) is connected to the water suction pipe (5). 3. A circulating heating heating system according to claim 2, characterized in that the microcirculation regulating valve (9) is a throttle valve. 4. A circulating heating heating system according to claim 1, characterized in that the heat pump host (1) includes a water pump (10), a heat exchanger (11) and a controller (8), which controls The instruction output end of the device (8) is connected with the water pump (10) and the heat exchanger (11) respectively. 5. A circulating heating heating system according to claim 4, characterized in that one end of the water suction pipe (5) is connected to the water inlet end of the water pump (10), and the other end is connected to the water storage tank (6) One end of the return pipe (3) is connected to the water outlet of the heat exchanger (11), and the other end is connected to the water storage tank (6); the water outlet of the water pump (10) is connected to the heat exchanger ( 11) Water inlet end. 6. A circulating heating type heating system according to claim 4, characterized in that the water storage tank (6) is also provided with a temperature control head (4) for sensing the water temperature in the tank, and the temperature control head ( 4) The signal output end is connected with the controller (8).

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