CN217519233U

CN217519233U - Emergency breaking valve for ultralow-temperature fluid

Info

Publication number: CN217519233U
Application number: CN202220613258.9U
Authority: CN
Inventors: 刘昌齐; 仲光; 刘淼
Original assignee: Lianyungang Huatai Petro Chemical Machinery Co ltd
Current assignee: Lianyungang Huatai Petro Chemical Machinery Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-09-30
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to an urgent breaking valve field specifically is an urgent breaking valve for ultra-low temperature fluid, including the joint pipe valve, the top fixedly connected with of joint pipe valve and the breaking valve tip pipe of its inside intercommunication, and joint pipe valve internal fixation has cup jointed two sealing rings and two spacing framves. The utility model provides a valve promptly breaks for ultra-low temperature fluid, through pressing the push rod, make two connecting rods of push rod promotion remove to two movable rods respectively, under two spacing limits, make two connecting rods can promote two first sealing plugs and nest respectively in the sealing ring inboard, can cut off fluid and flow, prevent that fluid from flowing out and causing the accident, moreover, the steam generator is simple in structure, easily make and have very strong practicality, cooperation through activity chamber and second spring, make the push rod can be again to the one side pulling of keeping away from the joint pipe valve, and it is spacing through the activity bolt, make when this sealing plug seals the back of cutting off, can remove the sealed of two first sealing fast, quick reset puts into operation again.

Description

Emergency breaking valve for ultralow-temperature fluid

Technical Field

The utility model relates to an emergency break valve field specifically is a emergency break valve for ultra-low temperature fluid.

Background

The emergency breaking valve is mainly applied to fluid loading and unloading arms of low-temperature media such as liquid chlorine, liquid ammonia and LNG. In the process of loading and unloading the cryogenic fluid medium, the position of the fluid storage device is changed, the fluid medium is shaken when a ship stops at a wharf and is loaded and unloaded, the tank wagon of a highway or a railway moves when the fluid medium is loaded and unloaded, the pipeline for conveying the fluid medium is accidentally broken due to the situations, leakage accidents are caused, and potential safety hazards are caused.

The following problems in the prior art are not well solved: 1. the snapping valve is complex in internal structure, high in cost and complex in operation, the operation intensity of workers is enhanced, manpower and time are wasted, and the working efficiency is reduced; 2. and the reuse and installation after the pulling-off are troublesome, and the reuse can not be realized quickly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an urgent breakaway valve for ultra-low temperature fluid to the inner structure who proposes in solving above-mentioned background art is complicated, and the operation is comparatively loaded down with trivial details, reinforcing workman's manipulation strength, and the reuse installation after breaking is comparatively troublesome, unable reuse's problem now fast. In order to achieve the above purpose, the utility model provides a following technical scheme: an emergency breaking valve for ultralow-temperature fluid comprises a joint pipe valve, wherein the top of the joint pipe valve is fixedly connected with a breaking valve end pipe communicated with the inside of the joint pipe valve, two sealing rings and two limiting frames are fixedly sleeved in the joint pipe valve, a movable rod is movably inserted in the two limiting frames, and one end of the movable rod is fixedly connected with a first sealing plug;

break the intraductal activity of valve tip and alternate there is the push rod, and the activity has cup jointed first spring and has cup jointed the second sealing plug with fixed the cup jointing on the push rod respectively, movable chamber has been seted up to one side of push rod, and the activity intracavity fixation has cup jointed the second spring and has cup jointed the activity with the activity and tie, and the one end that the activity was tied runs through the push rod and extends to its avris, the bottom swing joint of push rod has two connecting rods, and the other end of two connecting rods respectively with two movable rod relative one end swing joint.

Preferably, one side of the sealing ring is provided with a through hole penetrating to the other side of the sealing ring, and the side section of the through hole is a taper hole structure with the diameter increasing from left to right in sequence.

Preferably, the first sealing plug is of a circular truncated cone structure matched with the inner wall of the sealing ring, and the two first sealing plugs and the two sealing rings are respectively arranged in a group and are arranged symmetrically by taking the central line of the front face of the joint pipe valve as an axis and then arranged on two sides of the joint pipe valve.

Preferably, the first spring and the second sealing plug are movably sleeved in the end pipe of the breaking valve, and the diameter of the second sealing plug is matched with the inner diameter of the end pipe of the breaking valve.

Preferably, an arc-shaped groove is formed in the inner wall of the joint pipe valve communicated with the end pipe of the breaking valve, and one end of the movable bolt is movably clamped in the arc-shaped groove.

Preferably, the push rod is hinged with the two connecting rods.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, through pressing the push rod, make two connecting rods of push rod promotion remove to two movable rods respectively, under two spacing, make two connecting rods can promote two first sealing plugs nestification respectively in the sealing ring inboard, can cut off fluid and flow, prevent that fluid from flowing and causing the accident, simple structure, easily manufacturing has very strong practicality.

The utility model discloses in, through the cooperation of activity chamber and second spring, make the push rod can be again to keeping away from the one side pulling of joint pipe valve to it is spacing through the activity bolt, make when this stretch-break valve seals the back of cutting off, can remove the sealed of two first sealing plugs fast, make its quick reset use of coming into operation again, the convenience is strong, and life is longer.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

FIG. 2 is a side view of the structural seal ring of the present invention;

fig. 3 is a side view of the structure limiting frame of the present invention.

In the figure: 1. a junction tube valve; 2. breaking the valve end pipe; 3. a seal ring; 4. a limiting frame; 5. a movable rod; 6. a first sealing plug; 7. a push rod; 8. a first spring; 9. a second sealing plug; 10. a movable cavity; 11. a second spring; 12. a movable bolt; 13. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: an emergency breaking valve for ultralow-temperature fluid comprises a joint pipe valve 1, wherein the top of the joint pipe valve 1 is fixedly connected with a breaking valve end pipe 2 communicated with the inside of the joint pipe valve 1, two sealing rings 3 and two limiting frames 4 are fixedly sleeved in the joint pipe valve 1, a movable rod 5 is movably inserted in each of the two limiting frames 4, and one end of the movable rod 5 is fixedly connected with a first sealing plug 6;

break valve tip pipe 2 internalization and alternate and have had push rod 7, and the second sealing plug 9 has been cup jointed to the first spring 8 of difference activity on the push rod 7 and fixed the cup jointing, movable chamber 10 has been seted up to one side of push rod 7, and the fixed cup jointing in movable chamber 10 has second spring 11 and the activity has cup jointed movable bolt 12, and the one end of movable bolt 12 runs through push rod 7 and extends to its avris, the bottom swing joint of push rod 7 has two connecting rods 13, and the other end of two connecting rods 13 respectively with the relative one end swing joint of two movable rods 5.

In this embodiment, as shown in fig. 1, 2 and 3, a through hole penetrating to the other side of the sealing ring 3 is formed on one side of the sealing ring, and the side cross section of the through hole is a taper hole structure with a diameter increasing from left to right.

In this embodiment, as shown in fig. 1, fig. 2 and fig. 3, the first sealing plug 6 is a circular truncated cone structure that fits with the inner wall of the sealing ring 3, and two first sealing plugs 6 and two sealing rings 3 are respectively set as a group and are arranged symmetrically with the center line of the front face of the joint pipe valve 1 as an axis, and then two sides of the joint pipe valve 1 are provided.

In this embodiment, as shown in fig. 1, 2 and 3, the first spring 8 and the second sealing plug 9 are movably sleeved in the end pipe 2 of the pop-off valve, and the diameter of the second sealing plug 9 is matched with the inner diameter of the end pipe 2 of the pop-off valve.

In this embodiment, as shown in fig. 1, fig. 2, and fig. 3, an arc-shaped groove is formed in an inner wall of the connection pipe valve 1, which is communicated with the end pipe 2 of the stretch-break valve, one end of a movable bolt 12 is movably clamped in the arc-shaped groove, the push rod 7 can be pulled to one side away from the connection pipe valve 1 again through the cooperation of the movable cavity 10 and the second spring 11, and the movable bolt 12 is limited, so that after the stretch-break valve is sealed and cut off, the sealing of the two first sealing plugs 6 can be quickly released, the first sealing plugs can be quickly reset and put into use again, the convenience is high, and the service life is longer.

In this embodiment, as shown in fig. 1, 2 and 3, the push rod 7 is hinged to the two connecting rods 13, and by pressing the push rod 7, the push rod 7 pushes the two connecting rods 13 to move towards the two movable rods 5 respectively, and under the limitation of the two limiting frames 4, the two connecting rods 13 can push the two first sealing plugs 6 to be nested inside the sealing rings 3 respectively, so that the flow of oil can be cut off, the oil is prevented from flowing out to cause accidents, and the sealing device is simple in structure and easy to manufacture and has strong practicability.

The utility model discloses a use method and advantage: when the emergency breaking valve for the ultralow-temperature fluid is used, the working process is as follows:

as shown in fig. 1, 2 and 3, firstly, the push rod 7 is pressed, the movable plug 12 retracts into the movable cavity 10 under pressure, under the limiting action of the two limiting frames 4, the movable plug pushes the two first sealing plugs 6 to be respectively embedded inside the two sealing rings 3, the oil can be cut off from flowing, accidents caused by oil flowing are prevented, after the sealing of the stretch-break valve is cut off, the push rod 7 can be pulled to one side away from the connector pipe valve 1 again, the movable plug 12 is clamped and limited with the arc-shaped groove under the action of the second spring 11, the sealing of the two first sealing plugs 6 can be rapidly released, the movable plug can be rapidly reset and put into use again, the convenience is high, and the service life is longer.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. The skilled worker in this industry should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the preferred embodiments of the present invention, and does not limit the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An emergency disconnect valve for ultra-low temperature fluids comprising a junction block valve (1), characterized by: the top of the joint pipe valve (1) is fixedly connected with a breaking valve end pipe (2) communicated with the inside of the joint pipe valve, two sealing rings (3) and two limiting frames (4) are fixedly sleeved in the joint pipe valve (1), movable rods (5) are movably inserted in the two limiting frames (4), and one end of each movable rod (5) is fixedly connected with a first sealing plug (6);

break valve tip pipe (2) internalization and alternate push rod (7), and on push rod (7) respectively the activity cup jointed first spring (8) and fixed second sealing plug (9) of having cup jointed, activity chamber (10) have been seted up to one side of push rod (7), and activity chamber (10) endotheca connect second spring (11) and activity and cup jointed activity and tie (12), and the one end of activity tie (12) runs through push rod (7) and extends to its avris, the bottom swing joint of push rod (7) has two connecting rods (13), and the other end of two connecting rods (13) respectively with two movable rod (5) relative one end swing joint.

2. An slam shut valve for ultra-low temperature fluids according to claim 1 wherein: and a through hole penetrating to the other side of the sealing ring (3) is formed in one side of the sealing ring, and the side section of the through hole is of a taper hole structure with the diameter gradually increased from left to right.

3. An slam shut valve for ultra-low temperature fluids according to claim 1 wherein: the first sealing plugs (6) are of a circular truncated cone structure matched with the inner walls of the sealing rings (3), and the two first sealing plugs (6) and the two sealing rings (3) are respectively arranged on two sides of the joint pipe valve (1) in a group in an axisymmetric manner by taking the central line of the front side of the joint pipe valve (1) as an axis.

4. An slam shut valve for ultra-low temperature fluids according to claim 1 wherein: the first spring (8) and the second sealing plug (9) are movably sleeved in the end pipe (2) of the breaking valve, and the diameter of the second sealing plug (9) is matched with the inner diameter of the end pipe (2) of the breaking valve.

5. The slam-shut valve for ultra-low temperature fluids of claim 1 wherein: the inner wall of the joint pipe valve (1) communicated with the end pipe (2) of the breaking valve is provided with an arc-shaped groove, and one end of the movable bolt (12) is movably clamped in the arc-shaped groove.

6. The slam-shut valve for ultra-low temperature fluids of claim 1 wherein: the push rod (7) is hinged with the two connecting rods (13).