CN2434492Y

CN2434492Y - Leakage checking gas valve

Info

Publication number: CN2434492Y
Application number: CN 00238888
Authority: CN
Inventors: 徐宗民
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-22
Filing date: 2000-06-22
Publication date: 2001-06-13
Anticipated expiration: 2010-06-22

Abstract

The utility model relates to a leakage checking gas valve, which is composed of a valve seat, a valve core, etc. The utility model is characterized in that one side of an air inlet passage on the sphere valve core is provided with a leakage checking airway of the valve core; the airway of the valve core is communicated with an air guide tube; a perspective cup is covered outside the air guide tube, and liquid is filled in the perspective cup; the connecting place of the air guide tube and the valve core is provided with a sealing sleeve of the air guide tube; the air outlet part of the valve body is provided with an outlet of an airway of the valve body communicated with the perspective cup. The utility model compared with the existing valve has the advantages that the gas leakage can be accurately and conveniently found in time; the safety for using the gas is enhanced; fire, personnel poisoning, casualty, etc. caused by the gas leakage are avoided.

Description

Leak detection formula gas valve

The utility model relates to a kind of gas valve (ball valve), particularly a kind of valve with leak detection effect.

Existing gas valve only has on-off action, and various gas appliance used in everyday is because of along with time and gas leak phenomenon that a variety of causes produced, and particularly faint gas leakage is difficult for finding, and this has come hidden danger with the band of gas just for safety.

The purpose of this utility model is that a kind of switch of design is the valve of one with leak detection, it is except that the switch that possesses gas pipeline, can also hunt leak to the equipment after its valve such as valve, pipeline, joint, gas cooker, gas water-heater etc., supervisory function bit is played in the safe handling combustion gas.

The purpose of this utility model is achieved in that a side of gas-entered passageway has a spool leak detection air flue on the spool of original valve, the spool air flue communicates with an air pipe, air pipe is covered with a perspective cup, in the perspective cup liquid is housed, there is an air pipe stuffing box gland air pipe and spool connecting part, and the valve body oral area of giving vent to anger has a valve body air flue outlet that communicates with perspective cup.

Leak detection formula valve is compared with original valve, can in time, accurately find gas leakage easily, and place under repair in time improves the Security of using combustion gas, fire and personnel's poisoning, the injures and deaths etc. of avoiding gas leakage to cause.

Introduce the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation;

Wherein:

1. spool 2. spool air flues 3. are had an X-rayed cup

4. air pipe 5. air pipe stuffing box glands 6. valve body air flues outlet

With reference to accompanying drawing: on the basis of original valve, a side that spool (1) is gone up gas-entered passageway has a leak detection air flue (2), communicate with an air pipe (4) at spool air flue (2), air pipe is covered with a perspective cup (3), in the perspective cup liquid is housed, there is an air pipe stuffing box gland (5) air pipe and spool connecting part, and position, valve body air outlet has a valve body air flue outlet that communicates with the perspective cup.

During detection, gas is not directly sent, and enters optic cup but return down earlier, sends behind air pipe again, liquid is housed in the optic cup, when normal nothing was leaked, system pressure was stable behind the valve, and water seal is static, when if there is leakage in system behind the valve, combustion gas will form the gas leakage visual phenomena from the spool air flue along air pipe from the liquid level emersion, reach monitoring leak detection purpose.

Claims

1. leak detection formula gas valve, form by valve seat and spool etc., it is characterized in that: a side of the enterprising gas passage of ball-type spool has a spool leak detection air flue, the spool air flue communicates with an air pipe, air pipe is covered with a perspective cup, in the perspective cup liquid is housed, there is an air pipe stuffing box gland air pipe and spool connecting part, and the valve body oral area of giving vent to anger has one and exports with a perspective glass valve body air flue that communicates.