CN2479405Y

CN2479405Y - Emptying device for hot-water supply pipeline

Info

Publication number: CN2479405Y
Application number: CN 01211139
Authority: CN
Inventors: 周成凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-16
Filing date: 2001-03-16
Publication date: 2002-02-27
Anticipated expiration: 2011-03-16

Abstract

The utility model relates to a hot water supplied pipe-emptying device, which comprises a water storing tank and an electronic control valve which is connected with the water outlet of the water storing tank, on the one hand, the output end of the electronic control value is connected with hot-water using pipeline, on the other hand, the output end of the electronic control valve is communicated with the emptying hole of the water-storing tank by emptying pipeline. The device can resolve the pipeline emptying problem between the water-storing tank and the users. Not only the phenomenon of frost cleft that is aroused by water storage in pipeline in winter cannot occur, but also the directly hydrothermal usage by the users can be guaranteed. The device has advantages of safe and reliable employment, and is free from breakdown, and can be further used as the water inlet of the hot water storing tank, which can't overflow.

Description

The hot water supply pipeline exhausting device

The utility model relates to a kind of pipeline exhausting device that is used for water supply installation, particularly a kind of hot water emptier.

Chinese patent CN-2344731 discloses a kind of freezing prevention tubing formula solar water heater, it is characterized in that being equipped with at the water storage tank lower part outlet place of solar water heater control valve and exhaust-valve automatically.Though the setting of this pipe fitting is be connected can emptying after water storage tank to the pipeline control valve between the user is closed, but in actual use often because of automatic exhaust-valve under long-term hydraulic pressure effect, the obstruction of the leakage and the unidirectional emptying thereof of hot water may take place, using for user's hot water makes troubles, and automatically exhaust-valve the cost that has increased the user is set.

The purpose of this utility model is to provide a kind of hot water supply pipeline exhausting device simple in structure, safe in utilization, reliable for the deficiency that solves above-mentioned technology.

In order to achieve the above object, the designed hot water supply pipeline exhausting device of the utility model comprises water storage tank and the electrically-controlled valve that is connected with the delivery port of water storage tank, the output of electrically-controlled valve uses pipeline to be connected with hot water on the one hand, also be connected with drain on the water storage tank on the other hand by exhausting pipeline, here, it can be the top that exhausting pipeline is fed water storage tank that exhausting pipeline is connected with drain on the water storage tank, be communicated with drain on the water storage tank by water storage tank, also can be on the blow-down pipe that directly is connected on the drain, can also be to be connected with drain by being communicated with joint, in order both to guarantee the emptying of exhausting pipeline, can utilize this exhausting pipeline in the hot water water storage tank, to intake again, and don't water is overflowed from drain, the design's connection joint can be tightly connected by an end by interior pipe and outer tube and form, determine that the position is provided with relieving device on inner pipe with near the port that outer tube seals mutually, the upper end of outer tube is communicated with exhausting pipeline.The upper port of interior pipe is above the highest liquid level that produces hydraulic pressure.

The resulting hot water supply pipeline exhausting device of the utility model, thoroughly solved ducted tube emptying problem between water storage tank and the user, both prevent pipeline water storage in winter and caused the bursting by freezing phenomenon, guarantee the use of hot water when the user both again, particularly this hot water supply pipeline exhausting device is simple in structure, safe in utilization, reliable, be difficult for fault, also can do simultaneously the water inlet of hot water water storage tank with and can spilling water.

Fig. 1 is the utility model structural representation;

Fig. 2 is the connection joint structural representation of embodiment 2.

Below by embodiment, in conjunction with the accompanying drawings the utility model is further described.

Embodiment:

As shown in Figure 1, the hot water supply pipeline exhausting device of present embodiment design comprises water storage tank 1 and the electrically-controlled valve 3 that is connected with the delivery port 2 of water storage tank 1, the output 4 of electrically-controlled valve 3 uses pipeline 7 to be connected with hot water on the one hand, also be connected with drain 6 on the water storage tank 1 on the other hand by exhausting pipeline 5, exhausting pipeline 5 directly feeds the last napex of water storage tank 1, be communicated with drain 6 on the water storage tank 1 by water storage tank 1, be connected to blow-down pipe 12 on the drain 6, the upper port of blow-down pipe 12 is above the highest liquid level that produces hydraulic pressure.It can be widely used in solar water heater.

Embodiment 2:

As shown in Figure 2, the hot water supply pipeline exhausting device of present embodiment design, comprise the electrically-controlled valve 3 that the delivery port 2 of water storage tank 1 and existing water storage tank 1 is connected, the output of electrically-controlled valve 3 both used pipeline 7 to be connected with hot water, be connected with drain 6 on the water storage tank 1 by being communicated with joint 8 again, being communicated with joint 8 is tightly connected by an end by interior pipe 9 and outer tube 10 and forms, determining to be provided with relieving device 11 on the position near the port that interior pipe (9) is gone up with outer tube seals mutually, the upper end of outer tube 10 is connected with exhausting pipeline 5, in case the water back flow in the water storage tank is in exhausting pipeline 5, the upper port of interior pipe 9 is above the highest liquid level that produces hydraulic pressure, when excessive, water overflows from drain in case intake.Can be used for central hot-water supply system.

Claims

1, a kind of hot water supply pipeline exhausting device, it comprises water storage tank (1) and the electrically-controlled valve (3) that is connected with the delivery port (2) of water storage tank (1), the output (4) that it is characterized in that electrically-controlled valve (3) on the one hand uses pipeline (7) to be connected with hot water, also is communicated with drain (6) on the water storage tank (1) by exhausting pipeline (5) on the other hand.

2, hot water supply pipeline exhausting device according to claim 1, it is characterized in that the drain (6) on exhausting pipeline (5) and the water storage tank (1) is connected by being communicated with joint (8), connection joint (8) is tightly connected by an end by interior pipe (9) and outer tube (10) and forms, determining to be provided with relieving device (11) on the position near the port that interior pipe (9) is gone up with outer tube seals mutually, the upper end of outer tube (10) is communicated with exhausting pipeline (5).