CN201637158U - Automatic replenishment device for wall-mounted solar water heater - Google Patents

Abstract

The utility model discloses an automatic liquid replenishing device for a wall-mounted solar water heater, which is characterized in that the automatic liquid replenishing device for a wall-mounted solar water heater mainly consists of a liquid replenishing tank, an overflow pipe, a four-way joint, a liquid filling port, a joint nut, a sealing Composed of gasket, liquid replenishment port nut, liquid replenishment port, exhaust pipe, and exhaust nut; the four-way joint is respectively connected with the liquid filling port, the collector connecting pipe, and the joint nut; the upper end of the overflow pipe is inserted into the internal replacement through the four-way joint The upper part of the heater and the lower end are inserted into the bottom of the liquid replenishment tank; the upper part of the liquid replenishment tank is provided with a liquid replenishment port and a nut for the liquid replenishment port, and the lower part is equipped with an exhaust pipe and an exhaust nut. It has the characteristics of simple structure, convenient installation, small consumption of circulating heat medium, good sealing performance, good thermal conductivity, remarkable heat dissipation effect, and high heat exchange efficiency.

Description

Automatic replenishment device for wall-mounted solar water heater

Technical field

The utility model relates to a solar heating device, in particular to an automatic liquid replenishing device for a wall-mounted solar water heater.

Background technique

At present, with the continuous improvement of people's living standards and the rapid upgrading of solar water heater products, various split solar water heaters and pressurized water heaters are gradually being popularized and used. To the built-in heat exchanger in the water exchange tank, and then heat transfer to the water in the water exchange tank for heating. This heat exchange method can separate the heat medium from the required water, install the heat collector and the water tank separately, and improve the heat transfer speed and efficiency through the circulation of the working fluid and the heat exchange of the built-in heat exchanger, and then the water tank can be used as a It is a pressure-bearing type to ensure proper pressure during water supply, which can effectively meet the pressure requirements and is easy to install. It is especially suitable for high-rise buildings where solar water heaters cannot be installed on the roof. However, the currently known split-type solar water heaters and wall-mounted solar water heaters all use circulating heat medium. Since the circulating heat medium has strong thermal expansion and contraction performance, there is a certain amount of air stored in the upper part of the built-in heat exchanger, accounting for about 100% of the entire built-in heat exchanger. One-third of the volume of the heat exchanger, so that the outer surface of this part of the volume cannot conduct heat well, or even not conduct heat, so the heat dissipation effect is poor and the heat exchange efficiency is low, especially when the circulating heat medium is in the built-in heat exchanger. When the liquid level is lower than the nozzle of the liquid inlet pipe, the circulating heat medium cannot circulate, causing the built-in heat exchanger to fail to exchange heat. Seriously influenced the development of split solar water heater and wall-mounted solar water heater. Some split-type solar water heaters and wall-mounted solar water heaters use the exhaust pipe drawn from the built-in heat exchanger to be placed above the top of the pressurized water tank, and the exhaust is directly exhausted through the exhaust port, and the consumption of circulating heat medium is large. Moreover, installation holes need to be respectively arranged on the pressurized water tank and the built-in heat exchanger, and the structure is complicated, which easily causes lax sealing.

Contents of the invention

In order to overcome the shortcomings of existing split solar water heaters and wall-mounted solar water heaters that cannot conduct heat well, or even not conduct heat, have poor heat dissipation effect, low heat exchange efficiency, complex structure, poor sealing, and large consumption of circulating heat medium, the utility model Provided is an automatic liquid replenishing device for a wall-mounted solar water heater, which has the characteristics of simple structure, convenient installation, small consumption of circulating heat medium, good sealing performance, good thermal conductivity, remarkable heat dissipation effect, and high heat exchange efficiency.

The technical scheme adopted by the utility model to solve the technical problems is: the automatic liquid replenishing device for the wall-mounted solar water heater is mainly composed of a liquid replenishing tank, an overflow pipe, a four-way joint, a liquid filling port, a joint nut, a sealing washer, and an exhaust nut. , liquid replenishment port, and nut plug; the four-way joint is provided with a joint joint for connecting with the joint nut, and the upper interface and the left interface of the four-way joint are respectively connected with the connecting pipe of the wall-mounted solar water heater. The liquid filling port is installed on the four-way joint; after the upper end of the overflow pipe is inserted into the upper part of the built-in heat exchanger through the four-way joint, the liquid replenishment tank is connected with the four-way joint with a joint nut, and the joint nut, the liquid supplement tank A sealing gasket is installed between the four-way joint, and the lower end of the overflow pipe is inserted into the bottom of the liquid replenishment tank; the upper part of the liquid replenishment tank is provided with a liquid replenishment port and an exhaust nut, and a nut plug is installed at the lower part.

The beneficial effects of the present invention are: when the automatic replenishment device for wall-mounted solar water heaters with the above-mentioned structure is used in wall-mounted solar water heaters, no air is stored in the built-in heat exchanger, and when the temperature of the circulating heat medium rises and expands, the built-in heat exchanger The circulating heat medium in the device is extruded into the lower part of the liquid replenishment tank through the overflow pipe, and the air in the upper part of the liquid replenishment tank is discharged; when the temperature of the circulating heat medium decreases and shrinks, the circulating heat medium in the lower part of the liquid replenishment tank is discharged through the overflow through the siphon effect. The pipe is sucked into the built-in heat exchanger, and the upper part of the liquid replenishment tank is automatically replenished with air, so as to ensure that no air enters the built-in heat exchanger; the circulating heat medium inside the liquid replenishment tank does not directly contact the external air, but is exhausted through the air inside the liquid replenishment tank. The air nut is in contact with the external air; when the circulating heat medium inside the liquid replenishment tank is small, since the liquid replenishment tank is a transparent shell, it is easy to observe, so that the liquid replenishment can be replenished through the liquid replenishment port in time. Therefore, it has the characteristics of simple structure, convenient installation, small consumption of circulating heat medium, good sealing performance, good thermal conductivity, remarkable heat dissipation effect, and high heat exchange efficiency.

As an improvement of the utility model, a pressure limiting valve is installed on the upper part of the replenishment tank, which can appropriately increase the pressure of the circulating heat medium, and further improve the heat dissipation effect and heat exchange efficiency.

Description of drawings

The automatic liquid replenishing device for the wall-mounted solar water heater of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the sectional structure schematic diagram of the first embodiment of the automatic replenishment device for the wall-mounted solar water heater of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of the second embodiment of the automatic liquid replenishing device for the wall-mounted solar water heater of the present invention.

In the figure: 1. Upper interface, 2. Left interface, 3. Nut plug, 4. Overflow pipe, 5. Cross joint, 6. Filling port, 7. Joint nut, 8. Joint joint, 9 , Sealing washer, 10, exhaust nut, 11, rehydration port, 12, rehydration tank, 13, pressure limiting valve.

Detailed ways

As shown in Figure 1, the automatic replenishment device for the wall-mounted solar water heater is mainly composed of a replenishment tank 12, an overflow pipe 4, a four-way joint 5, a liquid filling port 6, a joint nut 7, a sealing gasket 9, an exhaust nut 10, The liquid replenishment port 11 and the nut plug 3 are composed; the four-way joint 5 is provided with an articulation joint 8 for connecting with the articulation nut 7, and the upper interface 1 and the left interface 2 of the four-way joint 5 are connected with the wall-mounted solar energy respectively. The connecting pipes of the water heater are connected, and the liquid filling port 6 is installed on the four-way joint 5; after the upper end of the overflow pipe 4 is inserted into the upper part of the built-in heat exchanger 2 through the four-way joint 5, the liquid replenishment tank 12 is connected with the joint nut 7 Connect with the four-way joint 5, a sealing gasket 9 is installed between the joint nut 7, the liquid replenishment tank 12 and the four-way joint 5, and the lower end of the overflow pipe 4 is inserted into the bottom of the liquid replenishment tank 12; the upper part of the liquid replenishment tank 12 is provided with Liquid replenishment port 11, exhaust nut 10, nut plug 3 is installed at the bottom.

When the automatic replenishment device for wall-mounted solar water heaters with the above structure is used in wall-mounted solar water heaters, no air is stored in the built-in heat exchanger, and when the temperature of the circulating heat medium rises and expands, the circulating heat medium in the built-in heat exchanger passes through The overflow pipe 4 squeezes into the lower part of the liquid replenishment tank 12, and discharges the air in the upper part of the liquid replenishment tank 12; when the temperature of the circulating heat medium decreases and shrinks, the circulating heat medium in the lower part of the liquid replenishment tank 12 is sucked through the overflow pipe 4 by using the siphon effect With a built-in heat exchanger, the upper part of the liquid replenishment tank 12 is automatically supplemented with air, so as to ensure that no air enters the interior of the built-in heat exchanger; The exhaust nut 10 is in contact with the outside air; when the circulating heat medium inside the liquid replenishment tank 12 is less, since the liquid replenishment tank 12 is a transparent shell, it is easy to observe, so that liquid replenishment can be performed through the liquid replenishment port 11 in time. Therefore, it has the characteristics of simple structure, convenient installation, small consumption of circulating heat medium, good sealing performance, good thermal conductivity, remarkable heat dissipation effect, and high heat exchange efficiency.

As shown in Figure 2, as an improvement of the present invention, a pressure limiting valve 14 is installed on the upper part of the replenishment tank 12, which can appropriately increase the pressure of the circulating heat medium, and further improve the heat dissipation effect and heat exchange efficiency.

Claims (2)

1. automatic liquid supply device for wall mounting type solar water heater, it is characterized in that: this automatic liquid supply device mainly is made up of fluid infusion jar (12), overflow pipe (4), four-way connection (5), filling opening (6), movable joint nut (7), seal washer (9), exhaust nut (10), fluid infusion mouth (11), nut plug (3); Described four-way connection (5) is provided with articulated joint (8), be used for connecting with movable joint nut (7), the last interface (1) of four-way connection (5), left interface (2) are connected with the connecting pipe of wall-hanging solar water heater respectively, and filling opening (6) is installed on the four-way connection (5); After built-in heat exchanger top is inserted through four-way connection (5) in described overflow pipe (4) upper end, with movable joint nut (7) fluid infusion jar (12) is connected with four-way connection (5), between movable joint nut (7), fluid infusion jar (12) and four-way connection (5) seal washer (9) is installed, fluid infusion jar (12) bottom is inserted in overflow pipe (4) lower end; Described fluid infusion jar (12) top is provided with fluid infusion mouth (11), exhaust nut (10), and the bottom is equipped with nut plug (3).

2. automatic liquid supply device for wall mounting type solar water heater as claimed in claim 1 is characterized in that: described fluid infusion jar (12) top is equipped with pressure limiting valve (13).

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