CN215806582U

CN215806582U - Pressure reducing device for natural gas transportation

Info

Publication number: CN215806582U
Application number: CN202122219483.2U
Authority: CN
Inventors: 徐科栋
Original assignee: Haikou Jinrui Furen Dangerous Goods Transportation Co ltd
Current assignee: Haikou Jinrui Furen Dangerous Goods Transportation Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-11
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a pressure reducing device for natural gas transportation, which relates to the technical field of natural gas transportation and comprises an adjusting box, wherein a fixed plate is fixedly connected inside the adjusting box, a sliding plate is slidably connected inside the adjusting box, two vertical rods are fixedly connected to the bottom of the sliding plate, the bottom ends of the two vertical rods are fixedly connected with a supporting plate together, a bidirectional screw rod is rotatably connected to the left wall inside the adjusting box, two threaded sleeves are connected to the periphery of the bidirectional screw rod in a threaded manner, the bottoms of the two threaded sleeves are both rotatably connected with adapter rods, and the bottom ends of the two adapter rods are rotatably connected with limiting plates together. The utility model provides a pressure reducing device for natural gas transportation, which is used for simply and efficiently reducing and conveying high-pressure natural gas in a pressurized pipeline to a user for use.

Description

Pressure reducing device for natural gas transportation

Technical Field

The utility model relates to the technical field of natural gas transportation, in particular to a pressure reducing device for natural gas transportation.

Background

At present, natural gas is mainly transported by two transportation modes, one is pipeline transportation, and the other is gas cylinder transportation. Pipeline transportation is suitable for long-distance transportation, and gas cylinder transportation is mostly short-distance transportation.

Wherein in the pipeline transportation, for the high efficiency transportation of making things convenient for the natural gas, generally need pressurize the natural gas, transport through the pressure pipeline, but when transporting the user and using, generally need carry out the decompression operation to it, so need design a domestic simple efficient pressure relief device, make the natural gas stably carry for the user and use after handling through the decompression.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In view of the above, the present invention provides a pressure reducing device for natural gas transportation, so as to implement simple and efficient pressure reduction and transportation of high-pressure natural gas in a pressurized pipeline to users.

(II) technical scheme

In order to achieve the technical purpose, the pressure reducing device for natural gas transportation comprises an adjusting box, wherein a fixed plate is fixedly connected inside the adjusting box, a sliding plate is connected inside the adjusting box in a sliding mode, two vertical rods are fixedly connected to the bottom of the sliding plate, a resisting plate is fixedly connected to the bottom ends of the two vertical rods together, a bidirectional screw rod is rotatably connected to the left wall inside the adjusting box, two threaded sleeves are connected to the periphery of the bidirectional screw rod in a threaded mode, adapter rods are rotatably connected to the bottoms of the two threaded sleeves, and limiting plates are rotatably connected to the bottom ends of the two adapter rods together.

Preferably, the right wall of the adjusting box is connected with an air inlet pipe in a communicating manner, and the left wall of the adjusting box is connected with an air outlet pipe in a communicating manner.

Preferably, the air outlet pipe is fixedly inserted with an air pressure detector.

Preferably, the bottom of the abutting plate is fixedly provided with a sealing ring a.

Preferably, two circular through holes are formed in the fixing plate, the sealing ring b is installed on the inner wall of each circular through hole, and the vertical rod penetrates through the circular through holes.

Preferably, the top inner wall fixedly connected with two direction telescopic links of regulating box, two the flexible end of direction telescopic link all with the top fixed connection of limiting plate.

Preferably, a circular through hole is formed in the right wall of the adjusting box, and the right end of the bidirectional screw rod penetrates through the circular through hole and is fixedly connected with the rotating handle.

Preferably, a plurality of springs are fixedly connected between the sliding plate and the inner wall of the top of the adjusting box.

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

(1): through setting up the sliding plate and supporting limiting plate and spring in the in-process that slides up for the intake pipe is carried to the high-pressure natural gas of regulating box inside and is offset through the spring force effect, causes certain loss of pressure, has opened certain throttle space simultaneously between supporting the board and the welding plate, and high-pressure natural gas passes the throttle space, reaches the purpose of decompression.

(2): the rotating handle is rotated to drive the limiting plate to ascend or descend, so that the upward moving height of the sliding plate and the abutting plate is limited, the area of a throttling gap between the abutting plate and the welding plate is controlled, the pressure stability is further controlled, and the use of a user is more stable.

Drawings

FIG. 1 is a schematic perspective view illustrating the present invention;

fig. 2 is a front view schematically showing a cut-away view of the structure of the present invention.

Description of the drawings: 1. an adjusting box; 2. an air inlet pipe; 3. an air outlet pipe; 4. an air pressure detector; 5. welding the plate; 6. a fixing plate; 7. a sliding plate; 8. a vertical rod; 9. a resisting plate; 101. a sealing ring a; 102. a seal ring b; 11. a spring; 12. a bidirectional screw; 13. turning a handle; 14. a threaded sleeve; 15. a transfer lever; 16. guiding the telescopic rod; 17. and a limiting plate.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings are only schematic representations of the concepts and principles of the embodiments of the disclosure, and do not necessarily show specific dimensions or proportions of the various embodiments of the disclosure. Certain features that are part of a particular figure may be exaggerated in order to illustrate relevant details or structures of embodiments of the present disclosure.

Referring to fig. 1-2, a pressure reducing device for natural gas transportation includes an adjusting box 1, a gas inlet pipe 2 is connected to the right wall of the adjusting box 1, a gas outlet pipe 3 is connected to the left wall of the adjusting box 1, and a gas pressure detector 4 is fixedly inserted and installed on the gas outlet pipe 3, wherein the horizontal height of the gas inlet pipe 2 is lower than the horizontal height of the gas outlet pipe 3, so as to ensure that high-pressure gas enters from a cavity at the bottom of two welding plates 5 when the gas inlet pipe 2 enters, and gas after pressure reduction is discharged from the area above the two welding plates 5 through the gas outlet pipe 3, it should be noted that, in practical application, the gas inlet pipe 2 can also be arranged at the bottom of the adjusting box 1; meanwhile, the air outlet pipe 3 is connected with an external household pipeline, and a closed pressure space is arranged in the air outlet pipe 3.

The pressure reducing system of the utility model: including fixed connection at the inside fixed plate 6 of regulating

box

1, 1 inside sliding connection of regulating box has sliding plate 7, a plurality of springs 11 of fixedly connected with between sliding plate 7 and the 1 top inner wall of regulating box, two montants 8 of bottom fixedly connected with of sliding plate 7, two circular through-holes have been seted up to the inside of fixed plate 6, sealing ring b102 is installed to the inner wall of circular through-hole, montant 8 runs through this circular through-hole, the common fixedly connected with in bottom of two montants 8 supports board 9, support the bottom fixed mounting of board 9 and have sealing ring a 101. Wherein seal ring a101 and seal ring b102 function as seals.

The limiting system of the utility model: including rotating the two-way screw rod 12 of connecting at the inside left wall of regulating box 1, the peripheral threaded connection of two-way screw rod 12 has two thread bush 14, the bottom of two thread bush 14 is all rotated and is connected with adapter rod 15, the bottom of two adapter rod 15 is rotated jointly and is connected with limiting plate 17, two direction telescopic links 16 of top inner wall fixedly connected with of regulating box 1, the flexible end of two direction telescopic links 16 all with limiting plate 17's top fixed connection, direction telescopic link 16 can play the effect of up-and-down motion direction to limiting plate 17, and other structures that possess the same direction function also can replace in practical application.

The working principle is as follows: at first high-pressure natural gas gets into regulating box 1 from intake pipe 2 to upwards top buttressing board 9, from this in-process, lose a part of gaseous kinetic energy, will support after board 9 jack-up is some, certain throttle space has been opened between buttressing board 9 and the welding plate 5, high-pressure natural gas passes the throttle space, reach the purpose of decompression, according to the pressure value after the decompression that atmospheric pressure detector 4 shows, the size of accessible adjustment throttle space area further adjusts the decompression degree, the operation mode is: the rotating handle 13 is rotated to drive the bidirectional screw 12 to rotate, and the height of the limiting plate 17 is adjusted under the switching action of the threaded sleeve 14 and the switching rod 15 and the guiding action of the guiding telescopic rod 16, so that the rising heights of the sliding plate 7, the vertical rod 8 and the abutting plate 9 are limited, the throttling gap area is further limited, and the purpose of adjusting the pressure value is achieved.

Exemplary embodiments of the proposed solution of the present disclosure have been described in detail above with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various technical features and structures presented in the present disclosure may be made without departing from the concept of the present disclosure, without departing from the scope of the present disclosure, which is defined by the appended claims.

Claims

1. Pressure relief device for natural gas transportation, including regulating box (1), the inside fixedly connected with fixed plate (6) of regulating box (1), the inside sliding connection of regulating box (1) has sliding plate (7), characterized in that, two montants (8) of the bottom fixedly connected with of sliding plate (7), two the common fixedly connected with in bottom of montant (8) supports board (9), the inside left wall of regulating box (1) rotates and is connected with two-way screw rod (12), the peripheral threaded connection of two-way screw rod (12) has two thread bush (14), two the bottom of thread bush (14) all rotates and is connected with keysets (15), two the bottom of keysets (15) rotates jointly and is connected with limiting plate (17).

2. The natural gas transportation pressure reducing device according to claim 1, wherein the right wall of the regulating box (1) is connected with an air inlet pipe (2) in a communicating manner, and the left wall of the regulating box (1) is connected with an air outlet pipe (3) in a communicating manner.

3. The natural gas transportation pressure reducing device according to claim 2, wherein the gas outlet pipe (3) is fixedly inserted with a gas pressure detector (4).

4. The natural gas transportation pressure reducing device according to claim 1, wherein a sealing ring a (101) is fixedly installed at the bottom of the abutting plate (9).

5. The natural gas transportation pressure reducing device according to claim 1, wherein two circular through holes are formed in the fixing plate (6), sealing rings b (102) are mounted on the inner walls of the circular through holes, and the vertical rods (8) penetrate through the circular through holes.

6. The natural gas transportation pressure reducing device according to claim 1, wherein two guiding telescopic rods (16) are fixedly connected to the inner wall of the top of the adjusting box (1), and the telescopic ends of the two guiding telescopic rods (16) are fixedly connected with the top of the limiting plate (17).

7. The natural gas transportation pressure reducing device according to claim 1, wherein a circular through hole is formed in the right wall of the adjusting box (1), and the right end of the bidirectional screw (12) penetrates through the circular through hole and is fixedly connected with the rotating handle (13).

8. The natural gas transportation pressure reducing device according to claim 1, wherein a plurality of springs (11) are fixedly connected between the sliding plate (7) and the inner wall of the top of the regulating tank (1).