CN2921718Y

CN2921718Y - Solar water heater pipe drain valve

Info

Publication number: CN2921718Y
Application number: CNU2006201205739U
Authority: CN
Inventors: 曹志良
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-22
Filing date: 2006-06-22
Publication date: 2007-07-11
Anticipated expiration: 2016-06-22

Abstract

A solar water heater pipe drain valve comprises an admitting-rising pipe, an electromagnetic valve and a water tank connecting pipe and is characterized in that: the upper and lower ends of the admitting-rising pipe are respectively connected with an upper and lower check valves; the cold water inlet pipe and an intake pipe connected with the upper check valve are also connected with the lower check valve. While effectively discharging remaining water in the admitting-rising pipe during winter, the utility model can fill the water tank with cold water without switching on the electromagnetic valve, thereby reducing energy consumption and equipment depreciation.

Description

Pipeline emptying valve for solar water heater

Affiliated technical field

The utility model relates to a kind of solar energy water heater pipe valve, especially can the emptying water inlet pipe and water outlet pipe in the valve of moisture.

Background technology

At present, the solar energy water heater pipe valve is made up of water inlet pipe and water outlet pipe, magnetic valve, water inlet pipe and water outlet pipe and a check-valves.The hot water that stores in using solar water heater water tank and when solar water heater water tank charges into cold water all must start the solenoid control power supply, and opens solenoid valve is connected water inlet pipe and water outlet pipe and water tank connecting pipe.Freeze for preventing pipeline in winter, when needs emptying water inlet pipe and water outlet pipe is retained the water yield, then need to close magnetic valve, open the water inlet pipe and water outlet pipe gate, utilize the air negative pressure opens check valve, get rid of water inlet pipe and water outlet pipe and retain the water yield.Cause the solenoid control power supply frequently to be opened, the one, cause energy loss, the one, increased working time of magnetic valve and regulating gate thereof, increased accessory loss and maintenance cost.

Summary of the invention

In order to reduce the magnetic valve working time and to open number of times, and reach in winter and prevent that pipeline from need freezing the emptying water inlet pipe and water outlet pipe to retain the purpose of the water yield, the utility model provides a kind of solar energy water heater pipe valve, this solar energy water heater pipe valve can not only reach normal use solar water heater stored hot water and add cold water, prevent that in winter pipeline from need freezing the emptying water inlet pipe and water outlet pipe to retain the purpose of the water yield, and can reduce the magnetic valve working time and open number of times.

The technical scheme that its technical problem that solves the utility model adopts is: connect upper check valve, following check-valves respectively in the both sides up and down of solar water heater water inlet pipe and water outlet pipe, wherein upper check valve directly links to each other with the cold water inlet that is connected with solar water heater water tank, and following check-valves links to each other with air inlet pipe.

When needs use the hot water that stores in the solar water heater water tank, start the solenoid control power supply, opens solenoid valve is connected solar water heater water tank water tank connecting pipe and water inlet pipe and water outlet pipe, and upper check valve, following check-valves are all closed; When needs when solar water heater water tank charges into cold water, need not opens solenoid valve, cutting off the solar water heater water tank tube connector is connected with water inlet pipe and water outlet pipe, the cold water that charges into is opened upper check valve automatically, by directly entering water tank with the water supply tube connector that is connected with solar water heater water tank, and this closure of check ring at present; Freeze for preventing pipeline in winter, when needing the emptying water inlet pipe and water outlet pipe to retain the water yield, need not opens solenoid valve, cut off the solar water heater water tank outlet pipe and be connected with water inlet pipe and water outlet pipe, open the water inlet pipe and water outlet pipe gate, because the suction function of current, open down check-valves, can suck air, with the water emptying of water inlet pipe and water outlet pipe from air inlet pipe, avoid surplus water freezing bursting by freezing water pipe in the pipe, this moment, upper check valve was closed.

The beneficial effects of the utility model are, can be when solar water heater water tank charge into cold water, must opens solenoid valve, and when effectively the emptying water inlet pipe and water outlet pipe is retained the water yield, prevent bursting by freezing in winter water pipe, easy and simple to handle.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structure principle chart of the present utility model.

1. air inlet pipe among the figure are 2. descended check-valves, 3. water inlet pipe and water outlet pipe, 4. upper check valve, 5. cold water inlet, 6. magnetic valve, 7. gate, 8. water tank connecting pipe, 9. water tank.

The specific embodiment

In Fig. 1, by the connected sum cut-out of check-valves (2) control air inlet pipe (1) and water inlet pipe and water outlet pipe (3) down; Cut off by the connected sum of upper check valve (4) control cold water inlet (5) with water inlet pipe and water outlet pipe (3); By the opening and closing of opening and closing magnetic valve (6) regulating gate (7), the connected sum of link to each other with water tank water pipe (8) and water inlet pipe and water outlet pipe (3) is cut off;

In the embodiment shown in fig. 1, when needing to use hot water, opens solenoid valve (6), (7) open the sluices, joining water box link to each other water pipe (8) and water inlet pipe and water outlet pipe (3), through joining water box link to each other water pipe (8) and water inlet pipe and water outlet pipe (3) outflow, all close at present for these by check-valves (2) and upper check valve (4) from water tank (9) for hot water;

In the time of need charging into cold water, need not opens solenoid valve (6), closed shutter (7), the cold water water pipe (8) that links to each other through water inlet pipe and water outlet pipe (3), upper check valve (4), cold water inlet (5), with water tank flows into and water tank (9), this at present check-valves (2) close;

When need to retain the water yield in the emptying water inlet pipe and water outlet pipe (3) winter, need not opens solenoid valve (6), closed shutter (7), open the regulating gate of water inlet pipe and water outlet pipe (3), following check-valves (2) is opened, air drains through air inlet pipe (1) and retains the water yield in the water inlet pipe and water outlet pipe (3), and upper check valve this moment (4) is closed.

Claims

1, a kind of pipeline emptying valve for solar water heater comprises water inlet pipe and water outlet pipe, magnetic valve, water tank connecting pipe, it is characterized in that, the both sides up and down that are included in water inlet pipe and water outlet pipe connect upper check valve, following check-valves respectively.

2, pipeline emptying valve for solar water heater according to claim 1 is characterized in that, the cold water inlet that is connected with upper check valve, and an end directly is connected with solar water heater water tank, and an end is connected with upper check valve.

3, pipeline emptying valve for solar water heater according to claim 1 is characterized in that, following check-valves links to each other with air inlet pipe.