CN2711593Y - Solar energy centralized heat collection and individual household heat supply facilities - Google Patents

Abstract

A household heating facility for centralized solar energy collection and household heating. A hot water tank is installed in each household, and a heat exchanger is installed in the hot water tank. The working fluid circulation pipeline is connected with an expansion tank, a pressure gauge, a circulation pump and an automatic exhaust valve on the working medium circulation pipeline. The utility model does not have a hot water storage tank standing on the roof, and does not affect the appearance of the city or the community. The utility model can cooperate with the construction of green houses and high-end residential areas. It is an advantage that each household takes care of itself and does not need management.

Description

Solar centralized heating and household heating facilities

technical field

The utility model relates to a household heating facility for centralized heating by solar energy.

Background technique

The current known centralized heat collection and household heating facilities generally adopt a shared storage (hot) water tank on the top of the building, and the heated water in the storage (hot) water tank is transported to each household through hot water pipes. . As the Chinese patent No. is 95226475.7, a utility model patent specification discloses a multi-heat source and multi-family shared perennial water supply device, which uses solar energy as a heat source, and it includes a solar water heater and a solar water heater installed on the roof of the building. The hot water storage tank, the hot water main pipe connected with the hot water storage tank supplies hot water to users through each hot water branch pipe. For example, the photothermal centralized heating system disclosed in the utility model patent application specification of China Patent Application No. 02148512.7 includes a metal heat pipe flat plate collector connected with multiple units, a water storage tank connected in series with the heat collector, and a water storage tank The connected water supply tank, the above-mentioned heat collector, water storage tank and water supply tank are all installed on the roof. Another example is the two-way circulating vacuum heat collector tube low water tank solar four seasons centralized water supply device disclosed in the utility model patent specification of Chinese Patent No. 00206755.2, which mainly includes a solar water tank and a vacuum heat collector. superior. Although the above-mentioned patents (applications) have all realized the purpose of centralized heat collection and household heating, the hot water tanks are all built on the roof and are shared. Due to the relatively large capacity of the hot water storage tank, building a large water tank on the roof will hinder the appearance of the city and the community on the one hand. When the hot water tank is used for a long time, it may cause damage to the floor strength and load-bearing structure of the building. And because the water consumption of each user is different, it is necessary to set up a hot water meter for each user, and it is necessary to enter the residence regularly to read the meter and charge according to the volume. In addition, there is also the possibility that users rush to use hot water every day, and there is no hot water available for late users.

Utility model content

The purpose of the utility model is to propose a household heating facility for centralized heating by solar energy that does not require a shared hot water tank.

The utility model includes a solar heat collector. In order to achieve the above-mentioned purpose, the utility model adopts setting a hot water tank in each resident's home, and a heat exchanger is arranged in the hot water tank, and the solar heat collector and the heat exchanger in the hot water tank of each resident The heaters are connected by a working medium circulation pipeline, and an expansion tank, a pressure gauge, a circulation pump and an automatic exhaust valve are arranged on the working medium circulation pipeline.

The working medium circulation pipeline is composed of a working medium output pipe and a working medium return pipe; the heat exchangers in the hot water tanks of each household are connected in parallel between the working medium output pipe and the working medium return pipe.

Above-mentioned each resident's hot water tank is provided with electric heater.

The above circulation pump is controlled by the controller according to the setting requirements.

The above-mentioned working medium circulation pipeline has a working medium liquid filling port and a working medium liquid outlet, and the working medium liquid filling port and the working medium liquid outlet can be arranged on the working medium output pipe of the working The working medium of the pipeline is returned to the pipe, and the working medium liquid filling port and the working medium liquid outlet are respectively provided with valves; the pipeline between the working medium liquid filling port and the working medium liquid outlet is provided with a valve.

The above-mentioned expansion tank, pressure gauge, and circulating pump can be installed on the working medium output pipe of the working medium circulation pipeline, or can be installed on the working medium return pipe of the working medium circulation pipeline, and the automatic exhaust valve is located at the working medium output pipe of the pipeline. on the highest point.

The utility model has the following positive effects:

1. The utility model does not have a hot water storage tank standing on the roof, and does not affect the appearance of the city or the community. The utility model can cooperate with the construction of green houses and the construction of high-end residential areas.

2. Each household is equipped with hot water storage tanks, and the water in each household’s hot water storage tanks is heated in a balanced manner through the heat storage medium circulation. Since the hot water storage tanks of each household are independent, the water and auxiliary electric heating are independent for each household. There is no need to set up water meters in each household, and there is no need for regular meter reading and charging, which brings convenience to residents.

3. Since there is no need to share the hot water storage tank, there is no problem of maintenance and cleaning of the shared hot water storage tank, which facilitates the management of heating facilities.

Description of drawings

Fig. 1 is the schematic diagram of embodiment 1;

FIG. 2 is a schematic diagram of Embodiment 2.

Detailed ways

Embodiment 1 shown in Fig. 1 has the solar heat collector 1 that is assembled by a plurality of unit solar heat collectors, working fluid circulation pipe 2, is arranged on the hot water tank 7 in each resident family, is provided with in the hot water tank 7 Heat exchanger 8 and electric heater 13. The solar heat collector 1 is installed on the roof, and the working medium circulation pipe 2 is composed of a working medium output pipe 2-1 and a working medium return pipe 2-2. The working medium circulation pipe 2 is filled with anti-scaling and cold-resistant working medium , The outer periphery of the working fluid circulation pipeline is provided with a thermal insulation layer. The working medium output end of the solar collector 1 is connected to the working medium output pipe 2-1 of the working medium circulation pipeline 2, and the working medium input end of the solar heat collector 1 is connected to the working medium return pipe 2-1 of the working medium circulation pipeline 2. 2 connections. The heat exchangers 8 in the hot water tanks 7 of each household are connected in parallel between the working medium output pipe 2-1 and the working medium return pipe 2-2 of the working medium circulation pipeline 2, that is, the liquid inlets 8 of all heat exchangers 8 -1 are all connected to the working medium output pipe 2-1 of the working medium circulation pipeline 2, and the liquid outlets 8-2 of all heat exchangers 8 are connected to the working medium return pipe 2-2 of the working medium circulation pipeline 2. An automatic exhaust valve 12, an expansion tank 3, a pressure gauge 4, and a circulating pump 5 are arranged on the working medium output pipe 2-1 on the working medium circulation pipeline, and the automatic exhaust valve 12 is set at the height of the working medium output pipe 2-1. The position at the position is on the position of the roof surface. The working fluid expands when heated and contracts when cooled, and is regulated by the expansion tank 3. From the pressure gauge 4, it can be known whether the circulation of the working medium is normal. If the pressure of the working fluid circulation pipeline increases, it can be discharged through the automatic exhaust valve 12, thereby avoiding the pipeline from bursting. After running for a period of time, the working medium will be consumed, and the working medium can be replenished through the expansion tank 3 . A temperature probe is provided at the outlet of the solar heat collector, and the controller 6 controls the circulation pump 5 to start, stop and run according to the signal of the temperature probe.

The working medium output pipe 2-1 of the working medium circulation pipeline is provided with a working medium liquid filling port 2-3 and a working medium liquid outlet 2-4, and a working medium liquid filling port 2-3 and a working medium liquid outlet 2-4 Ball valves 9 and 10 are respectively provided, and a ball valve 11 is provided on the pipeline between the working medium liquid filling port 2-3 and the working medium liquid outlet port 2-4. When there is no working medium in the pipeline, the working medium circulation pipeline is filled with the working medium through the ball valves 9, 10 and 11.

The working medium circulation is a closed system. The working medium absorbs heat in the solar collector 1 and the temperature rises. Return pipe 2-2, circulation in the solar heat collector 1, working medium exchanges heat with the water in the hot water tank 7 of the resident in the process of flowing through the resident heat exchanger 8, so that the cold water in the hot water tank is heated up. When the water temperature does not reach the set temperature, the electric heater 13 can be used to heat the water in the hot water tank 7 .

The expansion tank 3, the pressure gauge 4, and the circulation pump 5 of the embodiment 2 shown in Fig. 2 are all arranged on the working fluid return pipe 2-2, and the rest are the same as the embodiment 1.

The working medium liquid filling port 2-3 and the working medium liquid outlet port 2-4 on the working medium circulation pipeline of embodiment 3 (not shown) are arranged on the working medium return outlet pipe 2-2, and the working medium return outlet pipe 2 -2 and between the working medium liquid filling port 2-3 and the working medium liquid outlet port 2-4, a ball valve 10 is arranged, and the rest are the same as in embodiment 1.

Claims (6)

1. A household heating facility for centralized solar heating, comprising a solar heat collector (1), characterized in that: it has a hot water tank (7) arranged in each household, and a hot water tank (7) is provided in the hot water tank (7). There is a heat exchanger (8), and the solar heat collector (1) is connected with the heat exchanger (8) in the hot water tank (7) of each household by a working fluid circulation pipeline (2). An expansion tank (3), a pressure gauge (4), a circulation pump (5) and an automatic exhaust valve (12) are provided. 2. The solar central heating facility according to claim 1, characterized in that: the working medium circulation pipeline is composed of a working medium output pipe (2-1) and a working medium return pipe (2-2); The heat exchanger (8) in the water tank (7) is connected in parallel between the working medium output pipe (2-1) and the working medium return pipe (2-2). 3. The solar central heating facility according to claim 2, characterized in that: each household hot water tank (7) is equipped with an electric heater (13). 4. The solar central heating facility according to claim 3, characterized in that the circulating pump (5) is controlled by the controller (6). 5. The solar central heating facility according to claim 4, characterized in that: the working fluid circulation pipeline (2) has a working fluid filling port (2-3) and a working fluid outlet (2-4), and the working fluid The liquid filling port (2-3) and the liquid outlet port (2-4) of the working medium can be arranged on the working medium output pipe (2-1) of the working medium circulation pipeline, or can be set on the working medium outlet pipe (2-1) of the working medium circulation pipeline. On the return pipe (2-2), the working fluid filling port (2-3) and the working medium liquid outlet (2-4) are respectively provided with valves (9, 10); the working fluid filling port (2-3) A valve (11) is provided on the pipeline between the working fluid outlet (2-4). 6. The solar central heating facility according to claim 5, characterized in that: the expansion tank (3), the pressure gauge (4), and the circulating pump (5) can be installed in the working medium output pipe (2) of the working medium circulation pipeline -1), it can also be arranged on the working medium return pipe (2-2) of the working medium circulation pipeline, and the automatic exhaust valve (12) is on the highest position of the working medium output pipe (2-1) of the pipeline.

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