CN212134317U

CN212134317U - Water jacket cover for gas cylinder hydrostatic test

Info

Publication number: CN212134317U
Application number: CN202020936796.2U
Authority: CN
Inventors: 黄崧; 陈杰; 张学林; 赵忠国; 毛鲲; 郑金运; 王毅; 周于
Original assignee: CHONGQING SPECIAL EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
Current assignee: CHONGQING SPECIAL EQUIPMENT INSPECTION AND RESEARCH INSTITUTE
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-12-11
Anticipated expiration: 2030-05-28

Abstract

The utility model relates to the field of gas cylinder inspection and detection, and discloses a water jacket cover for a gas cylinder hydrostatic test, which comprises a water jacket cover main body for connecting a water jacket, wherein a piston cavity is arranged in the water jacket cover main body, a piston is connected in the piston cavity in a sliding way, a hollow high-pressure rod is fixedly arranged on the piston in a penetrating way, two ends of the high-pressure rod all extend out of the water jacket cover main body, a through hole is arranged at the bottom of the water jacket cover main body, a hollow gas cylinder connector is fixed in the through hole, the gas cylinder connector is sleeved on a high-pressure rod in a sliding way, the lower part of the gas cylinder connector is provided with a conical thread for matching with a gas cylinder nozzle, a flange is annularly arranged at the bottom of the high; the side part of the water jacket cover main body is provided with an annular air bag which is communicated with the piston cavity. The utility model discloses can solve the leakproofness problem of water jacket lid and water jacket.

Description

Water jacket cover for gas cylinder hydrostatic test

Technical Field

The utility model relates to a gas cylinder inspection detects technical field, especially relates to a water jacket lid for gas cylinder hydrostatic test.

Background

In the manufacturing and using processes of the gas cylinder, the safety of the gas cylinder is guaranteed to be very important, and the hydrostatic test is taken as an important link in the production and detection processes of the gas cylinder and has an important function of detecting whether the integral strength of the gas cylinder meets the requirements. The conventional hydrostatic test method is an external measurement method, and the method comprises the steps of filling water into a gas cylinder, hoisting the gas cylinder into a water jacket filled with the water, sealing the water jacket by using a water jacket cover, boosting the pressure of the gas cylinder to hydrostatic test pressure, expanding the gas cylinder, pressing out the excess water volume in the water jacket, recording the volume of the water volume overflowing from the water jacket, maintaining the pressure, observing whether the water volume changes or not, reducing the pressure or not, then reducing the pressure, recording the volume of the excess water volume, and completing the hydrostatic test. Because the pressurizing, pressure maintaining and pressure reducing time is fixed, the lifting and sealing of the water jacket cover determine the efficiency of the whole hydraulic test.

Patent CN201911153060.6 discloses a water jacket lid for gas cylinder hydrostatic test adopts compression elasticity sealing ring sealed, realizes the snap-fit of water jacket lid and gas cylinder bottleneck, promotes the installation effectiveness by a wide margin. But does not solve the problem of the tightness between the water jacket cover and the water jacket.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a water jacket lid for gas cylinder hydrostatic test can solve the leakproofness problem of water jacket lid and water jacket.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

a water jacket cover for a gas cylinder hydrostatic test comprises a water jacket cover main body used for connecting a water jacket, wherein a piston cavity is arranged in the water jacket cover main body, a piston is connected in the piston cavity in a sliding manner, a hollow high-pressure rod is fixedly penetrated on the piston, two ends of the high-pressure rod extend out of the water jacket cover main body, a through hole is formed in the bottom of the water jacket cover main body, a hollow gas cylinder connector is fixedly arranged in the through hole, the gas cylinder connector is sleeved on the high-pressure rod in a sliding manner, a conical thread used for matching with a gas cylinder nozzle is arranged at the lower part of the gas cylinder connector, a flange is annularly arranged at the bottom of the high-pressure rod, and a gas cylinder sealing; the side part of the water jacket cover main body is provided with an annular air bag which is communicated with the piston cavity.

Furthermore, the high-pressure rod is wound with a spring in the piston cavity, one end of the spring is fixed on the piston, and the other end of the spring is fixed on the top wall of the piston cavity.

Furthermore, a weight reduction cavity is arranged in the water jacket cover main body.

Furthermore, the air bag is communicated with an inflation tube, one end of the inflation tube is positioned in the weight reduction cavity, and the other end of the inflation tube extends out of the water jacket cover main body.

Furthermore, the high pressure bar and the air inlet pipe are both provided with quick connectors at one end above the water jacket cover main body.

Further, a piston sealing ring is arranged on the side of the piston.

Further, the gas cylinder connector is connected with the water jacket cover main body through a flat key.

Further, the top of the gas cylinder connecting head is provided with an installation part which is used for abutting against the bottom wall of the piston cavity.

Further, be equipped with first connector sealing washer between the installation department of gas cylinder connector and the diapire in piston chamber, be equipped with second connector sealing washer and third connector sealing washer between the glide plane of gas cylinder connector and high pressure bar, second connector sealing washer and third connector sealing washer are located the head and the afterbody of gas cylinder connector respectively, and be equipped with sealed the pad between gas cylinder connector and the water jacket lid main part bottom, gas cylinder connector cover is equipped with connector mounting nut, sealed pad supports and leans on between connector mounting nut and water jacket lid main part bottom.

The principle of the utility model lies in:

the gas cylinder connector is inserted into a cylinder mouth of a gas cylinder, the water jacket cover main body is rotated to enable the conical threads on the lower portion of the gas cylinder connector to be matched with the cylinder mouth of the gas cylinder, then the whole water jacket cover and the gas cylinder can be hung into the water jacket together, the water jacket cover main body is fixedly connected to the water jacket, and at the moment, the gas bag is inflated to enable the water jacket cover main body and the water jacket to be sealed. Simultaneously, because gasbag and piston chamber intercommunication, gas in the gasbag also can get into the piston intracavity, extrude the piston in the piston intracavity, make the piston rise, the piston is fixed with the high-pressure rod, the piston drives the high-pressure rod and also rises, the flange of high-pressure rod bottom rises in step, thereby make the flange of high-pressure rod bottom upwards extrude the gas cylinder sealing washer, the gas cylinder sealing washer expands to the outside, and then form sealedly between with gas cylinder bottle neck inner wall and the high-pressure rod bottom, thereby realize the rapid fit of water jacket lid main part and gas cylinder bottle neck, improve hydrostatic test efficiency by a wide margin.

The beneficial effects of the utility model reside in that:

(1) the utility model discloses set up gasbag and gas cylinder sealing washer, can realize simultaneously sealed between gas cylinder connector and the water jacket cover and the water jacket between sealed, solved unable sealed problem between traditional water jacket cover and the water jacket to only need aerify the pretension that an action just can be simultaneously gas cylinder sealing washer and gasbag in to the gasbag, easy operation compares with traditional mechanical type pretension gas cylinder sealing washer, has reduced work load, assembles more fast.

(2) The utility model discloses set up the piston chamber, thereby can drive the piston and go up and down with the gasbag intercommunication on the one hand and drive the gas cylinder connector and go up and down for the gas cylinder sealing washer inflation realizes the rapid draing of water jacket lid and gas cylinder bottle neck, and on the other hand is because the water jacket lid is pure steel system structure, and weight is big, and hoist and mount is loaded down with trivial details, energy resource consumption is big, and the piston chamber can reduce the weight of whole water jacket lid, more does benefit to the hoist and mount of water jacket lid, subtracts the weight chamber and also can further reduce the weight of water jacket lid.

(3) The utility model discloses a high-pressure bar adopts integrated into one piece, compares with traditional high-pressure bar threaded connection, can effectively prevent and treat inside the foreign matter falls into the gas cylinder, also can reduce the staff and observe whether fastening of traditional high-pressure bar threaded connection, the work that whether drops.

Drawings

Fig. 1 is a schematic structural view of a water jacket cover for a hydraulic pressure test of a gas cylinder;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B in FIG. 1;

the water jacket cover comprises a water jacket cover main body 1, a cover body 2, a screw 3, a weight reduction cavity 4, an air bag 5, a communicating pipe 50, a piston cavity 6, a piston 7, a piston sealing ring 70, a quick coupler 8, a spring seat 9, a spring 10, a guide ring 12, a high-pressure rod 13, a gas cylinder connector 14, an installation part 15, a first connector sealing ring 16, a flat key 17, a second connector sealing ring 18, a third connector sealing ring 19, a flange 20, a gas cylinder sealing ring 21, a connector installation nut 22, a sealing gasket 23 and an inflation pipe 24.

Detailed Description

The following description is given by way of specific embodiments, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure provided in the present specification. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, and are only schematic drawings rather than actual drawings, which should not be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore the terms describing the position relationship in the drawings are used only for exemplary illustration, and not for limiting the present invention, and those skilled in the art can understand the specific meaning according to the specific situation.

As shown in figure 1, the utility model discloses a water jacket lid for gas cylinder hydrostatic test, including the water jacket lid main part 1 that is used for connecting the water jacket, lid 2 is installed through screw 3 at water jacket lid main part 1 top, and lid 2 is used for sealed water jacket lid main part 1. A piston cavity 6 and a weight reducing cavity 4 are arranged in the water jacket cover main body 1, the piston cavity 6 is positioned on the inner side of the weight reducing cavity 4, the piston cavity 6 is a cylindrical cavity, and the weight reducing cavity 4 is an annular cavity. As can be seen, the cover 2 is also of two-part construction, one of which covers the piston chamber 6 and the other covers the weight-reduction chamber 4.

Referring to fig. 1 and 3, an annular air bag 5 is clamped at the side of the water jacket cover main body 1, a communicating pipe 50 is communicated between the air bag 5 and the piston cavity 6, an inflation pipe 24 is communicated with the communicating pipe 50, one end of the inflation pipe 24 is positioned in the weight reduction cavity 4, and the other end of the inflation pipe extends out of the water jacket cover main body 1 and is positioned outside the cover body 2. The quick coupler 8 is installed at one end of the inflation tube 24 located outside the cover body 2, so that the inflation tube 24 can be inflated conveniently.

Referring to fig. 2 again, a piston 7 is slidably connected in the piston cavity 6, and a piston seal ring 70 is clamped on the side of the piston 7. A hollow high-pressure rod 13 is fixedly arranged in the middle of the piston 7 in a penetrating mode, two ends of the high-pressure rod 13 extend out of the water jacket cover main body 1, and a quick connector 8 is also installed at one end, located above the water jacket cover main body 1, of the high-pressure rod 13. Spring seat 9 is formed in the middle of the part of cover body 2 covering piston cavity 6, high pressure rod 13 penetrates through spring seat 9, and high pressure rod 13 can slide on spring seat 9, high pressure rod 13 is wound with spring 10 in piston cavity 6, one end of spring 10 is fixed on piston 7, and the other end is fixed on the top wall of piston cavity 6 (namely on spring seat 9).

A through hole is seted up to the bottom of water jacket lid main part 1, is fixed with hollow gas cylinder connector 14 through flat key 17 in the through hole, adopts flat key 17 to be connected between gas cylinder connector 14 and the water jacket lid main part 1, can be more high-efficient, more stable transmission moment of torsion. The gas cylinder connector 14 is sleeved on the high-pressure rod 13 in a sliding manner, and the lower part of the gas cylinder connector 14 is provided with a conical thread used for matching with a gas cylinder nozzle. 14 top integrated into one piece of gas cylinder connector has the installation department 15 that is used for leaning on 6 diapire in piston chamber, and when gas cylinder connector 14 was installed, through the through-hole of gas cylinder connector 14 passing 1 bottom of water jacket lid main part, installation department 15 supported and leans on 6 diapires in piston chamber, and 14 middle parts of gas cylinder connector are equipped with straight screw thread, and it is fixed to screw the installation that realizes gas cylinder connector 14 on the straight screw thread of gas cylinder connector 14 through connector mounting nut 22. In order to increase the sealing performance of the through hole at the bottom of the water jacket cover main body 1, a sealing gasket 23 is arranged between the connector mounting nut 22 and the bottom of the water jacket cover main body 1, and a first connector sealing ring 16 is arranged between the mounting part 15 of the gas cylinder connector 14 and the bottom wall of the piston cavity 6. The bottom of the high pressure rod 13 is annularly provided with a flange 20, a gas cylinder sealing ring 21 capable of expanding towards the outside is abutted between the flange 20 and the bottom of the gas cylinder connector 14, and the gas cylinder sealing ring 21 is made of elastic rubber materials. In order to prevent liquid from entering the piston chamber 6 when the cylinder seal ring 21 is not expanded, a second connector seal ring 18 and a third connector seal ring 19 are provided between the sliding surfaces of the cylinder connector 14 and the high-pressure rod 13, and the second connector seal ring 18 and the third connector seal ring 19 are respectively located at the head and the tail of the cylinder connector 14.

The utility model discloses before the water jacket lid installation, at first insert gas cylinder connector 14 towards the bottle neck of gas cylinder, then rotatory water jacket lid main part 1, water jacket lid main part 1 drives gas cylinder connector 14 through parallel key 17 and rotates together, the toper screw thread that makes 14 lower parts of gas cylinder connector forms the cooperation with gas cylinder bottle neck, then alright together hang into the water jacket with whole water jacket lid and gas cylinder, then with 1 fixed connection in water jacket of water jacket lid main part in the water jacket again, inflate in the gas tube 24 this moment, 5 expansions of gasbag, make to form between water jacket lid main part 1 and the water jacket sealedly. Simultaneously, the gas in the gas tube 24 also can get into in the piston chamber 6 of piston 7 below, extrude piston 7 in the piston chamber 6, make piston 7 rise, because piston 7 is fixed with high-pressure bar 13, piston 7 drives high-pressure bar 13 and also rises along water jacket cover main part 1, the flange 20 of high-pressure bar 13 bottom rises in step, thereby make the flange 20 of high-pressure bar 13 bottom upwards extrude gas cylinder sealing washer 21, gas cylinder sealing washer 21 expands to the outside, and then form sealedly between with gas cylinder bottle neck inner wall and the high-pressure bar 13 bottom, thereby realize the quick fit of water jacket cover main part 1 and gas cylinder bottle neck, improve hydrostatic test efficiency by a wide margin.

The utility model discloses set up gasbag 5 and gas cylinder sealing washer 21, can realize simultaneously that sealed between gas cylinder connector 14 and the water jacket cover and the water jacket between sealed, solved unable sealed problem between traditional water jacket cover and the water jacket to only need aerify the pretension that an action just can be simultaneously gas cylinder sealing washer 21 and gasbag 5 in to gasbag 5, and easy operation compares with traditional mechanical type pretension gas cylinder sealing washer 21, and the work load has been reduced, and the assembly is quicker.

The utility model discloses set up piston chamber 6, thereby can communicate with gasbag 5 on the one hand, thereby it rises to drive piston 7 and drive gas cylinder connector 14 and rise, make gas cylinder sealing washer 21 inflation, realize the high-speed fit of water jacket lid and gas cylinder bottle neck, on the other hand because the water jacket lid is pure steel structure, and weight is big, and it is loaded down with trivial details to hoist, and energy consumption is big, and piston chamber 6 is a cavity, can reduce the weight of whole water jacket lid, more does benefit to the hoist and mount of water jacket lid, subtracts the weight that heavy chamber 4 also can further reduce the water jacket lid.

The utility model discloses a high-pressure bar 13 adopts integrated into one piece, compares with 13 threaded connection of traditional high-pressure bar, can effectively prevent and treat inside the foreign matter falls into the gas cylinder, also can reduce whether staff observes 13 threaded connection of traditional high-pressure bar and fastens, the work whether drops.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The utility model provides a water jacket lid for gas cylinder hydrostatic test, is including being used for connecting the water jacket lid main part of water jacket, its characterized in that: a piston cavity is arranged in the water jacket cover main body, a piston is connected in the piston cavity in a sliding manner, a hollow high-pressure rod is fixedly arranged on the piston in a penetrating manner, two ends of the high-pressure rod extend out of the water jacket cover main body, a through hole is formed in the bottom of the water jacket cover main body, a hollow gas cylinder connector is fixedly arranged in the through hole, the gas cylinder connector is sleeved on the high-pressure rod in a sliding manner, a conical thread used for matching a gas cylinder nozzle is arranged at the lower part of the gas cylinder connector, a flange is annularly arranged at the bottom of the high-pressure rod, and a gas cylinder sealing ring capable of expanding towards the outside is abutted between the flange; the lateral part of the water jacket cover main body is provided with an annular air bag which is communicated with the piston cavity.

2. The water jacket cover for the hydraulic pressure test of the gas cylinder as claimed in claim 1, characterized in that: the high pressure bar is wound with a spring in the piston cavity, one end of the spring is fixed on the piston, and the other end of the spring is fixed on the top wall of the piston cavity.

3. A water jacket cover for a hydraulic test of a gas cylinder according to claim 1 or 2, characterized in that: and a weight reduction cavity is arranged in the water jacket cover main body.

4. The water jacket cover for the hydraulic pressure test of the gas cylinder as claimed in claim 3, characterized in that: the air bag is communicated with an inflation tube, one end of the inflation tube is positioned in the weight reduction cavity, and the other end of the inflation tube extends out of the water jacket cover main body.

5. A water jacket cover for a hydraulic test of a gas cylinder as claimed in claim 4, characterized in that: and one ends of the high-pressure rod and the air inlet pipe, which are positioned above the water jacket cover main body, are respectively provided with a quick coupler.

6. The water jacket cover for the hydraulic pressure test of the gas cylinder as claimed in claim 1, characterized in that: and a piston sealing ring is arranged on the side part of the piston.

7. The water jacket cover for the hydraulic pressure test of the gas cylinder as claimed in claim 1, characterized in that: the gas cylinder connector is connected with the water jacket cover main body through a flat key.

8. A water jacket cover for a hydraulic test of a gas cylinder as claimed in claim 1 or 7, characterized in that: and the top of the gas cylinder connecting head is provided with an installation part which is used for abutting against the bottom wall of the piston cavity.

9. The water jacket cover for the hydraulic pressure test of the gas cylinder as claimed in claim 8, characterized in that: be equipped with first connector sealing washer between the installation department of gas cylinder connector and the diapire in piston chamber, be equipped with second connector sealing washer and third connector sealing washer between the glide plane of gas cylinder connector and high pressure pole, second connector sealing washer and third connector sealing washer are located the head and the afterbody of gas cylinder connector respectively, and are equipped with sealed the pad between gas cylinder connector and water jacket lid main part bottom, and gas cylinder connector cover is equipped with connector mounting nut, sealed pad supports and leans on between connector mounting nut and water jacket lid main part bottom.