CN218000539U

CN218000539U - Oil gas field vapor recovery relief valve

Info

Publication number: CN218000539U
Application number: CN202222438156.0U
Authority: CN
Inventors: 代江平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-12-09
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to an oil gas recovery technical field to an oil gas field vapor recovery system relief valve is disclosed, including the lower valve casing, be equipped with the upper valve casing on the lower valve casing, be equipped with the valve rod in lower valve casing and the upper valve casing jointly, the inside fixedly connected with disk seat that still of lower valve casing, be provided with the seal groove on the disk seat, be provided with seal assembly in lower valve casing and the upper valve casing. The utility model provides a relief valve has replaced traditional relief valve structure, and seal assembly can play the cushioning effect to opening and close between valve rod and the disk seat, prolongs the life of relief valve, and secondly, a pair of sealed pad of the usable installation component of staff is changed to utilize the two pairs of sealing washers of installation component to change, the simple operation can guarantee the sealing performance of relief valve, improves the practicality of relief valve.

Description

Oil gas field vapor recovery relief valve

Technical Field

The utility model relates to an oil gas recovery technical field especially relates to an oil gas field vapor recovery system relief valve.

Background

The oil gas recovery is an energy-saving and environment-friendly new technology, the oil gas discharged in the processes of storage, transportation, loading and unloading of oil products is recovered by using the oil gas recovery technology, the atmospheric pollution caused by volatilization of the oil gas is prevented, the potential safety hazard is eliminated, and the economic loss is reduced by improving the utilization rate of energy sources, so that considerable benefit return is obtained.

The relief valve is an important pipeline valve among the oil gas recovery process, can install the relief valve on the liquefied petroleum gas pipeline and avoid the too big accident that takes place of pressure in the pipeline, and the chinese utility model patent that publication number is CN 216344503U: the utility model provides a liquefied petroleum gas relief valve, includes the relief valve, the fixed flange that is provided with of lower extreme of relief valve, the bilateral symmetry welded fastening of flange has the lug, logical groove has been seted up on the lug, and sets up first spliced eye on the lateral surface that leads to the groove, install the relief valve on the lug and consolidate connecting device, above-mentioned technical scheme has guaranteed the stable use of relief valve, but, the relief valve that above-mentioned technical scheme provided can produce wearing and tearing when long-term the use, and the in-process of opening and close many times between valve clack and the disk seat can influence the sealing performance between valve clack and the disk seat, leads to the phenomenon of revealing to appear easily in the relief valve.

Therefore, it is necessary to design a safety valve for recovering oil and gas in oil and gas fields to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an oil gas field oil gas recovery safety valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil gas field vapor recovery system relief valve, includes lower valve casing, be equipped with the upper valve casing on the lower valve casing, be equipped with the valve rod jointly in lower valve casing and the upper valve casing, fixedly connected with disk seat is still gone back to the inside of lower valve casing, be provided with the seal groove on the disk seat, be provided with seal assembly in lower valve casing and the upper valve casing.

As a preferred technical solution of the present invention, the sealing assembly comprises a sealing gasket, a sealing ring and an installation frame, the sealing gasket is disposed at the bottom end of the valve rod, the sealing ring is bonded to the inner surface of the installation frame, and the installation frame is disposed in the sealing groove;

the sealing gasket is assembled on the valve rod through the first mounting assembly, and the mounting frame is assembled in the sealing groove through the second mounting assembly.

As a preferred technical scheme of the utility model, one of the installation component includes threaded rod and thread groove, threaded rod fixed connection is at the sealed top surface that fills up, the bottom at the valve rod is seted up to the thread groove, the threaded rod screw thread cup joints in the thread groove.

As a preferred technical scheme of the utility model, pole, two pressure boost springs and two draw-in grooves in two slides, two fixture blocks, two urceolus, two in installation component two includes, the slide is all seted up on the disk seat, and two slides all communicate each other with the seal groove, two the fixture block slides the assembly respectively in two slides, two the equal fixed connection of urceolus is in the inner face of valve casing down, two interior pole slides the assembly respectively in two urceolus, two pressure boost springs's one end is connected with the inner face of two urceolus respectively, two pressure boost springs's the other end is connected in the inside one end that corresponds the urceolus with two interior poles respectively, two the draw-in groove is all seted up in the side of installing frame.

As a preferred technical scheme of the utility model, laminate each other between the outer fringe of the inner surface of urceolus and interior pole.

As an optimal technical scheme of the utility model, laminate each other between the side of fixture block and the inner face of draw-in groove.

The utility model discloses following beneficial effect has:

1. by arranging the sealing assembly, when the safety valve is in a closed state, the sealing gasket is clamped into the sealing ring, the outer edge of the sealing gasket is tightly attached to the inner surface of the sealing ring, the sealing performance of the safety valve can be ensured, the sealing gasket and the sealing ring are both made of corrosion-resistant rubber materials, the opening and closing between the valve rod and the valve seat can be buffered, and the service life of the safety valve is prolonged;

2. through setting up installation component one and installation component two, the usable a pair of sealed pad of installation component of staff is changed to utilize the installation component to change two pairs of sealing washers, the simple operation can guarantee the sealing performance of relief valve, improves the practicality of relief valve.

Drawings

Fig. 1 is a schematic structural view of an oil-gas field oil-gas recovery safety valve provided by the utility model;

fig. 2 is a schematic view of a cross-sectional structure of an oil-gas recovery safety valve for an oil-gas field provided by the utility model;

fig. 3 is an enlarged view of a structure at a position a of the oil gas recovery safety valve of the oil gas field;

fig. 4 is the utility model provides a B department structure enlarger of oil gas field vapor recovery system relief valve.

In the figure: the sealing structure comprises a lower valve shell 10, an upper valve shell 20, a valve rod 30, a valve seat 40, a sealing groove 50, a sealing assembly 60, a sealing gasket 601, a sealing ring 602, a mounting frame 603, a mounting assembly I70, a threaded rod 701, a threaded groove 702, a mounting assembly II 80, a slideway 801, a clamping block 802, an outer cylinder 803, an inner rod 804, a pressurizing spring 805 and a clamping groove 806.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-4, an oil gas field vapor recovery system relief valve, including lower valve casing 10, upper valve casing 20 is equipped with on the lower valve casing 10, the connection structure between lower valve casing 10 and the upper valve casing 20 does not regard as the innovative part of this technical scheme, and not shown in the figure, does not do too much repeated here yet, is equipped with valve rod 30 jointly in lower valve casing 10 and the upper valve casing 20, and the inside of lower valve casing 10 still fixedly connected with valve seat 40 is provided with seal groove 50 on the valve seat 40, is provided with seal assembly 60 in lower valve casing 10 and the upper valve casing 20.

Referring to fig. 3, the sealing assembly 60 includes a sealing gasket 601, a sealing ring 602 and a mounting frame 603, the sealing gasket 601 is disposed at the bottom end of the valve rod 30, the sealing ring 602 is adhered to the inner surface of the mounting frame 603, the mounting frame 603 is disposed in the sealing groove 50, when the safety valve is in a closed state, the sealing gasket 601 is clamped into the sealing ring 602, and the outer edge of the sealing gasket 601 is tightly attached to the inner surface of the sealing ring 602, so that the sealing performance of the safety valve can be ensured, the sealing gasket 601 and the sealing ring 602 are both made of corrosion-resistant rubber materials, and can buffer the opening and closing between the valve rod 30 and the valve seat 40;

the packing 601 is fitted to the valve stem 30 through the first mounting member 70, and the mounting frame 603 is fitted into the seal groove 50 through the second mounting member 80.

Referring to fig. 3, the first mounting assembly 70 includes a threaded rod 701 and a threaded groove 702, the threaded rod 701 is fixedly connected to the top surface of the gasket 601, the threaded groove 702 is formed in the bottom end of the valve rod 30, the threaded rod 701 is sleeved in the threaded groove 702 in a threaded manner, and replacement of the gasket 601 is facilitated by the first mounting assembly 70.

Referring to fig. 4, the second mounting assembly 80 includes two slideways 801, two blocks 802, two outer cylinders 803, two inner rods 804, two pressurizing springs 805 and two clamping grooves 806, the two slideways 801 are all disposed on the valve seat 40, the two slideways 801 are all communicated with the sealing groove 50, the two blocks 802 are respectively slidably assembled in the two slideways 801, the two outer cylinders 803 are both fixedly connected to the inner surface of the lower valve housing 10, the two inner rods 804 are respectively slidably assembled in the two outer cylinders 803, one ends of the two pressurizing springs 805 are respectively connected to the inner surfaces of the two outer cylinders 803, the other ends of the two pressurizing springs 805 are respectively connected to one ends of the two inner rods 804 located inside the corresponding outer cylinders 803, the two clamping grooves 806 are both disposed on the side surface of the mounting frame 603, and by providing the second mounting assembly 80, the sealing ring 602 can be conveniently replaced.

Referring to fig. 4, the inner surface of the outer cylinder 803 and the outer edge of the inner rod 804 are fitted to each other, so that the inner rod 804 can be stably fixed.

Referring to fig. 4, the side surfaces of the fixture block 802 and the inner surface of the clamping groove 806 are attached to each other, so that the fixing effect of the fixture block 802 and the clamping groove 806 on the mounting frame 603 can be ensured.

The utility model discloses a concrete theory of operation as follows:

the utility model provides a be provided with sealing component 60 in the relief valve, when the relief valve is in the closure state, sealed pad 601 card is gone into in the sealing washer 602, and closely laminate between the outer fringe of sealed pad 601 and the inner face of sealing washer 602, can guarantee the sealing performance of relief valve, sealed pad 601 all adopts corrosion-resistant rubber material to make with sealing washer 602, can play the cushioning effect to opening and close between valve rod 30 and the disk seat 40, secondly, when sealed pad 601 and sealing washer 602 appear wearing and tearing, the staff need be changed sealed pad 601 and sealing washer 602.

When replacing the gasket 601, a worker first separates the lower valve housing 10 from the upper valve housing 20, rotates the gasket 601 to separate the threaded rod 701 from the threaded groove 702, and then screws the threaded rod 701 of the new gasket 601 into the threaded groove 702 to complete the replacement of the gasket 601.

When replacing the sealing ring 602, a worker firstly separates the lower valve housing 10 and the upper valve housing 20, and pulls the two inner rods 804, so that the two inner rods 804 move towards the inside of the two outer cylinders 803 respectively, the two inner rods 804 can drive the two clamping blocks 802 to be away from each other when moving, so that the two clamping blocks 802 move out of the two clamping grooves 806, then the worker takes out the mounting frame 603 from the sealing groove 50, places the new sealing ring 602 and the mounting frame 603 into the sealing groove 50, adjusts the position of the mounting frame 603, so that the two clamping grooves 806 move to positions opposite to the two clamping blocks 802 respectively, then the worker loosens the two inner rods 804, under the elastic action of the two pressurizing springs 805, the two inner rods 804 can drive the two clamping blocks 802 to be close to each other, so that the two clamping blocks 802 are clamped into the two clamping grooves 806, and then the replacement of the sealing ring 602 can be completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an oil gas field vapor recovery system relief valve, includes lower valve casing (10), be equipped with upper valve casing (20) on lower valve casing (10), be equipped with valve rod (30) in lower valve casing (10) and upper valve casing (20) jointly, fixedly connected with disk seat (40) are gone back to the inside of lower valve casing (10), its characterized in that, be provided with seal groove (50) on disk seat (40), be provided with seal assembly (60) in lower valve casing (10) and upper valve casing (20).

2. The oil and gas field oil and gas recovery safety valve according to claim 1, wherein the sealing assembly (60) comprises a sealing gasket (601), a sealing ring (602) and a mounting frame (603), the sealing gasket (601) is arranged at the bottom end of the valve rod (30), the sealing ring (602) is adhered to the inner face of the mounting frame (603), and the mounting frame (603) is arranged in the sealing groove (50);

the sealing gasket (601) is assembled on the valve rod (30) through a first mounting assembly (70), and the mounting frame (603) is assembled in the sealing groove (50) through a second mounting assembly (80).

3. The oil and gas field oil and gas recovery safety valve according to claim 2, characterized in that the first mounting assembly (70) comprises a threaded rod (701) and a threaded groove (702), the threaded rod (701) is fixedly connected to the top surface of the sealing gasket (601), the threaded groove (702) is formed at the bottom end of the valve rod (30), and the threaded rod (701) is sleeved in the threaded groove (702) in a threaded manner.

4. The oil and gas field oil and gas recovery safety valve according to claim 2, wherein the second mounting assembly (80) comprises two sliding ways (801), two clamping blocks (802), two outer cylinders (803), two inner rods (804), two pressurizing springs (805) and two clamping grooves (806), the two sliding ways (801) are arranged on the valve seat (40), the two sliding ways (801) are communicated with the sealing groove (50), the two clamping blocks (802) are respectively assembled in the two sliding ways (801) in a sliding manner, the two outer cylinders (803) are respectively fixedly connected to the inner surface of the lower valve housing (10), the two inner rods (804) are respectively assembled in the two outer cylinders (803) in a sliding manner, one ends of the two pressurizing springs (805) are respectively connected with the inner surfaces of the two outer cylinders (803), the other ends of the two pressurizing springs (805) are respectively connected with one ends of the two inner rods (804) inside the corresponding outer cylinders (803), and the two clamping grooves (806) are respectively arranged on the side surface of the mounting frame (603).

5. The safety valve for oil and gas recovery of oil and gas fields as claimed in claim 4, wherein the inner surface of the outer cylinder (803) and the outer edge of the inner rod (804) are mutually attached.

6. The safety valve for oil and gas recovery of oil and gas fields as claimed in claim 4, wherein the side surface of the clamping block (802) and the inner surface of the clamping groove (806) are attached to each other.