CN212375952U

CN212375952U - Automatic exhaust valve for pressure tank

Info

Publication number: CN212375952U
Application number: CN202020331831.8U
Authority: CN
Inventors: 周进
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-01-19
Anticipated expiration: 2030-03-17

Abstract

The invention provides an automatic exhaust valve of a pressure tank, which is characterized in that a screw at one end of an automatic exhaust device can be fastened with a control port of the pressure tank. The screw port at the other end can be fastened with the port of the pressure gauge body. The control rod is connected with the shell through a rotating shaft. The spring enables the lever to be lifted upwards. And the valve plate fixed with the valve plate closes the air duct. The air control valve is sleeved at the upper end of the air guide pipe and can be opened or closed according to the air pressure. The device is characterized in that a floater with a certain weight senses and acts to discharge redundant gas in the pressure tank in time according to the height of the water level in the pressure tank. The air injection of a faucet or the air shortage of a pressure tank is avoided. The safety and the comfort of using tap water are improved.

Description

Automatic exhaust valve for pressure tank

Technical Field

The invention relates to an automatic exhaust device of a pressure tank. The method is mainly used for towerless tap water consisting of a submersible pump and a pressure tank.

Background

With the improvement of living standard of people, more and more rural people also begin to install and use tap water of their own. The tap water of the house is a towerless water supply system. The most common form of towerless water supply is a combination of a submersible pump and a pressure tank.

A very annoying shortcoming of pressure tanks currently available on the market is that a high pressure air flow is emitted from the tap whenever the water in the tank reaches a low limit! This high pressure air stream can entrain water and splash of water. Bringing much annoyance, inconvenience and even danger to users. Sometimes frightened by one hop!

This is because the submersible pump injects air in the pipeline into the tank body every time the pressure tank is filled with water, which causes excessive gas in the pressure tank and leads to frequent gas injection of the faucet. However, other methods are used to prevent the gas in the pipeline from being injected into the tank, which causes a new problem that the air is dissolved in water at a high pressure. Therefore, with the continuous use of water, the gas in the pressure tank is less and less, and the elasticity is lost. Causing the submersible pump to be frequently started, and reducing the service life of the submersible pump.

In order to solve the problem, a manual exhaust device is additionally arranged on a pressure tank body and is manually opened when the pressure tank body needs to be exhausted. However, the effect is not satisfactory, and because the time for the gas of the pressure tank to flow into the tap water pipeline is random, and the manual exhaust cannot be performed in time, the manual exhaust effect can only reduce the phenomenon of gas injection of the faucet to a certain extent, and cannot be fundamentally avoided.

Disclosure of Invention

The present invention aims at providing one kind of automatic exhaust device easy to install onto pressure tank to eliminate high pressure gas jetted from water tap and gas loss inside the pressure tank.

The invention aims to realize the purpose, which comprises an automatic exhaust device shell, connecting screw ports at two ends, a control rod, a valve plate, an air guide pipe, an air control valve cap, a string and a floater, wherein the connecting screw ports are arranged on the two ends of the automatic exhaust device shell; the automatic exhaust device is installed between the pressure tank and the pressure gauge body through screw ports at two ends, one end of the control rod is connected with the shell through a rotating shaft and can rotate freely, the other end of the control rod is inserted into the tank body, the valve block is fixed on the control rod, one end of the spring is hooked on the shell, the other end of the spring is hooked on the control rod, the air control valve is sleeved on the upper end of the air guide tube, the floater is placed inside the tank body through the water inlet of the tank body, and the thin rope is connected with the end.

Compared with the prior art, its beneficial effect is: the device is induced and acts by a floater with certain weight according to the height of the water level in the pressure tank, and redundant gas in the pressure tank is discharged in time. The air injection of a faucet or the air shortage of a pressure tank is avoided. The safety and the comfort of using tap water are improved.

Drawings

The invention is described in further detail below with reference to the figures and the detailed description.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the present invention after installation in a pressure tank.

Fig. 3 shows the detailed shape of each part of the automatic exhaust device.

Wherein: numbers 10 to 17 are original parts of the pressure tank. The device comprises a check valve 10, an air return check valve 11, a water outlet 12, a water injection pipeline 13, a pressure gauge 14, a pressure control switch 15, a submersible pump 16 and a pressure tank 17.

Detailed Description

As shown in FIG. 1, the present invention comprises an automatic exhaust device housing and two threaded ports 1. The device comprises a control rod 2, a string 3, a floater 4, a valve plate 5, a spring 6, an air duct 7, an air control valve cap 8 and a rotating shaft 9;

the automatic exhaust device is installed between the pressure tank and the pressure gauge body through screw ports at two ends, one end of the control rod is connected with the shell through a rotating shaft and can rotate freely, the other end of the control rod is inserted into the tank body, the valve block is fixed on the control rod, one end of the spring is hooked on the shell, the other end of the spring is hooked on the control rod, the air control valve is sleeved on the upper end of the air guide tube, the floater is placed inside the tank body through the water inlet of the tank body, and the thin rope is connected with the end.

The screw at one end of the automatic exhaust device can be fastened with the control port of the pressure tank. The other port can be fastened with the port of the pressure gauge body, and the control rod is connected with the shell through a rotating shaft and can rotate freely. The float is connected with the tail end of the control rod through a string. The spring enables the lever to be lifted upwards. And the valve plate fixed with the valve plate closes the air duct. The air control valve is sleeved at the upper end of the air guide pipe and can be opened or closed according to the air pressure.

As can be seen from fig. 2, no substantial changes to the pressure tank itself and the original fittings are required during the installation process. Only a little disassembly and assembly.

As can be seen from FIG. 3, the present invention first removes the original end of the water inlet pipe of the pressure tank, and then removes the original pressure gauge body.

Then one end of the string in the automatic air discharging device is tied with the tail end of the control rod. And then the other end is transported into the tank through the control port. The string is then hooked out of the water inlet port using a hooked tool. The rope end is then tied to the float. And then the floater is placed into the tank body from the water inlet port.

And finally, the end of the water inlet pipe and the corresponding end of the pressure tank are fastened again. Then the control rod of the automatic exhaust device is inserted into the control port of the pressure tank, and the screw port of the shell is fastened with the control port of the pressure tank. And finally, fastening the pressure gauge body with a screw on the other side of the automatic exhaust device. Is suitable for a towerless water supply system in the form of a submersible pump combined pressure tank. In the present embodiment, water level sensing control exhaust is used. After the device is installed, the power supply is switched on. The submersible pump injects well water and air in the pipeline into the tank body through the pipeline and the check valve. At this time, the valve plate of the automatic exhaust device and the end of the air guide pipe are in an open state, and the valve cap and the end of the air guide pipe are in a closed state. Therefore, when the pressure in the pressure tank is just increased, the air in the pressure tank cannot be exhausted through the air guide pipe. Along with the water level in the pressure tank rises gradually, the floater is floated, the control rod is pulled up by the spring to move upwards, then the valve plate fixed on the control rod is sealed with the air guide pipe, and the gas in the pressure tank cannot overflow. The submersible pump continues to inject water until the pressure in the tank is increased enough to power off the action of the pressure-controlled switch, and the submersible pump stops injecting water. At the moment, the water in the pressure tank is sealed by the check valve and cannot flow back to the water well. And the water in the water injection pipeline can smoothly flow back under the action of gravity and the air return of the air return check valve.

The pressure and the water level of the pressure tank are gradually reduced along with the water consumption of a user, when the pressure is reduced to the starting critical point of the pressure control switch, the pressure control switch acts to be electrified, and then the submersible pump works to fill water into the pressure tank for the second time. In this process, if the water level in the tank is not lower than the float, the automatic venting device will not vent. However, the submersible pump injects a lot of air into the tank body every time water is injected. The gas in the pressure tank will be more and more, thus causing a less and less dry water level in the tank. Until the dry water level is below the float. At this time, the control rod of the automatic air discharging device is pulled down by the weight of the floater through the thin rope, so that the valve plate fixed on the control rod and the air guide pipe are opened. The high-pressure gas in the tank body is exhausted through the gas guide pipe, and in the process, the gas control valve cap is jacked up by the high-pressure gas to exhaust gas! Along with the pressure reduction that the exhaust leads to, the pressure control switch action circular telegram, the timely water injection again of immersible pump, because the accuse gas valve cap has certain weight, so when pressure in the overhead tank reduces to certain extent, the accuse gas valve cap can seal the air guide pipe because of the action of gravity. The excessive gas is prevented from being discharged in the floating stage of the floater because the water level in the pressure tank is not raised.

Excess gas was vented via an automatic vent and the pressure tank was filled with water … … in cycles. The automatic exhaust device can well and automatically control the gas quantity in the tank body. Thereby, air can not be sprayed from the faucet, and the tank body can not be lack of air.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the foregoing embodiments may be modified and/or equivalent substituted for some or all of the features. And the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the technical solution scope of the embodiments of the present invention.

Claims

1. The automatic exhaust valve of the pressure tank comprises an automatic exhaust device shell, connecting screw ports at two ends, a control rod, a valve plate, an air guide pipe, an air control valve cap, a thin rope and a floater; the automatic exhaust device is characterized in that the automatic exhaust device is arranged between the pressure tank and the pressure gauge body through screw ports at two ends, one end of a control rod is connected with the shell through a rotating shaft and can rotate freely, the other end of the control rod is inserted into the tank body, a valve plate is fixed on the control rod, one end of a spring is hooked on the shell, the other end of the spring is hooked on the control rod, an air control valve is sleeved at the upper end of an air guide pipe, a floater is placed inside the tank body through a water inlet of the tank body and is connected with.