CN202442847U - Airtight testing machine for steel seamless gas cylinder - Google Patents

Abstract

The utility model discloses an airtight testing machine for a steel seamless gas cylinder and the airtight testing machine comprises a frame, an elevating platform disposed on the top of the frame and a cylinder driving the elevating platform. A flume is arranged below the elevating platform and a breather pipe is fixed on the top of the frame. Control valves are mounted at two ends of the breather pipe and a plurality of quick-acting couplings are disposed in the elevating platform. The quick-acting couplings are connected with the breather pipe by hoses. The testing machine in the utility model immerges the gas cylinder in the flume by the elevating platform driven by the cylinder and fills high-pressure gas in the gas cylinder before the gas cylinder is immerged. The testing machine can carry out qualitative detection on the airtightness of the gas cylinder conveniently and is simple in structure and low in cost.

Description

Steel seamless gas cylinder airtight testing machine

technical field

The utility model relates to the technical field of manufacturing steel seamless gas cylinders, in particular to an airtight testing machine for steel seamless gas cylinders.

Background technique

Steel seamless gas cylinders are widely used for filling high-pressure air, oxygen, nitrogen, argon, carbon dioxide and storing compressed natural gas (CNG) in automotive power systems. Domestic small-volume steel seamless gas cylinders are all made of seamless steel tubes by closing the bottom and closing the mouth. As a special equipment, the steel cylinder must be tested for air tightness during its manufacturing process to check whether the cylinder is leaking.

At present, some gas cylinder airtight testing machines on the market blindly pursue automation, resulting in complex structure, difficult maintenance, high price, poor versatility, and some gas cylinder airtight testing machines consume relatively large energy consumption, which increases the cost of gas cylinder manufacturing cost.

Contents of the invention

The utility model provides a steel seamless gas cylinder airtight testing machine to solve the problems of complex structure and high cost of the existing testing machine.

A steel seamless gas cylinder airtight testing machine, comprising a frame, a lifting platform installed on the top of the frame and a cylinder for driving the lifting platform, a water tank is arranged under the lifting platform, and a water tank is fixed on the top of the frame There are control valves at both ends of the ventilation pipe, and several quick connectors are arranged in the lifting platform, and the quick connectors communicate with the ventilation pipe through flexible pipes.

There are workbenches on both sides of the frame to facilitate the transfer of gas cylinders.

A manual switch for controlling the cylinder is provided on the frame for easy operation.

An automatic control box for controlling the work of the cylinder and the control valve is installed on the frame, which can realize the automatic detection of the gas cylinder.

The lifting platform includes a frame body connected with the piston rod of the cylinder, the bottom surface of the frame body is composed of at least two gear rods arranged in parallel, and a fixing plate is provided on the side of the frame body, and the hose passes through the fixing plate and is connected to the quick connector .

The gear lever is cylindrical and has a protective sleeve on its outer periphery to prevent the gear lever from scratching the gas cylinder.

An air pressure gauge is arranged on the ventilation pipe between the two control valves.

The utility model testing machine immerses the gas cylinder into the water tank through the lifting platform driven by the cylinder, and fills the gas cylinder with high-pressure gas before immersion, so that the air tightness of the gas cylinder can be qualitatively detected conveniently. The device has a simple structure and low cost. Low.

Description of drawings

Fig. 1 is the structural representation of the utility model testing machine;

Fig. 2 is the top view of the lifting platform of the present utility model;

Fig. 3 is a schematic diagram of the partial structure of the connection between the gear lever and the frame of the present invention.

Detailed ways

As shown in the figure, a steel seamless gas cylinder airtight testing machine includes a workbench 1 and a frame 2. The workbench 1 is divided into two parts, which are respectively arranged on both sides of the frame 2. The top of the frame 2 is provided with an elevating platform 3, and the lower part of the elevating platform 3 is provided with a water tank 4, and the water tank 4 is just located between the two parts of the workbench 1.

Lifting platform 3 comprises frame body 301, and the top of frame body 301 is connected with the piston rod of cylinder 5, and the bottom surface of frame body 301 is the support surface of gas cylinder, is made up of several gear rods 302 arranged in parallel, and gear rod 302 is cylindrical, and outer circumference Covered with a protective cover made of polyurethane to prevent scratches from cylinders. As shown in FIG. 3 , both ends of the gear rod 302 are fixed on both sides of the frame body 301 through a fixing seat 303 , a pressing plate 304 and a screw rod 305 .

The top of the frame 2 is provided with a vent pipe 6 arranged horizontally. The two ends of the vent pipe are bent downwards and control valves 7 and 8 are installed. There is also an air pressure gauge 13 on the part between the control valves 7 and 8. The frame body 1 Nine quick connectors 9 are arranged inside, and the quick connectors 9 communicate with the ventilation pipe 6 through the hose 10. There is a fixing plate 306 on the side of the frame body 1, and the hose 10 passes through the fixing plate 306, which can prevent the pipeline from being entangled.

The frame 1 is also provided with a manual switch 11 and an automatic control box 12 for controlling the cylinder 5. The automatic control box 12 is mainly used to control the work of the cylinder and the control valve to realize automatic operation of the device.

The working principle of the above testing machine is as follows:

First place the gas cylinder 14 on the side of the workbench 1, raise the lifting platform 3 to the highest position, then roll the gas cylinder 14 into the frame body 301, seal the quick connector 9 with the mouth of the gas cylinder 14, and open the control Valve 8, fill high-pressure gas into the gas cylinder 14, when the air pressure gauge 13 detects that the air pressure reaches the set value, then close the control valve 8, start the cylinder 5, the piston rod is extended, and the gas cylinder 14 in the lifting platform 3 enters In the tank 4, and completely submerged in water, observe whether there is air leakage.

After the detection is completed, the lifting table 3 is lifted, the piston rod of the cylinder 5 contracts, the control valve 7 is opened, the gas is discharged, and then the quick joint 9 is separated from the gas cylinder 14, and finally the gas cylinder 14 is rolled to the other side of the workbench 1, Start the next batch of testing.

Claims (7)

1. A steel seamless gas cylinder airtight testing machine is characterized in that it comprises a frame, a lifting platform installed on the top of the frame and a cylinder driving the lifting platform, the bottom of the lifting platform is provided with a water tank, and the A ventilation pipe is fixed on the top of the frame, control valves are provided at both ends of the ventilation pipe, and several quick connectors are arranged in the lifting platform, and the quick connectors communicate with the ventilation pipe through flexible pipes. 2. The airtight testing machine for steel seamless gas cylinders according to claim 1, wherein workbenches are arranged on both sides of the frame. 3. The airtight testing machine for steel seamless gas cylinders according to claim 1, wherein a manual switch for controlling the cylinder is provided on the frame. 4. The airtight testing machine for steel seamless gas cylinders according to claim 1, wherein an automatic control box for controlling the operation of the cylinder and the control valve is installed on the frame. 5. The steel seamless gas cylinder airtight testing machine according to claim 1, characterized in that, the lifting table includes a frame connected to the piston rod of the cylinder, and the bottom surface of the frame is composed of at least two parallel-arranged The side of the frame body is provided with a fixing plate, and the hose passes through the fixing plate and is connected with the quick connector. 6. The airtight testing machine for steel seamless gas cylinders according to claim 1, characterized in that, the gear bar is cylindrical, and the outer circumference is covered with a protective sleeve. 7. The airtight testing machine for steel seamless gas cylinders according to claim 1, characterized in that an air pressure gauge is provided on the air pipe between the two control valves.

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