Safety pressure relief equipment for natural gas differential pressure power generation

Abstract

The utility model relates to safety pressure relief equipment for natural gas differential pressure power generation, which comprises a natural gas pipeline, a pressure relief mechanism is fixed at the bottom of the natural gas pipeline, the pressure relief mechanism comprises a pressure relief pipeline, a cover frame is fixed on one inner wall of the pressure relief pipeline, the bottom of the cover frame is rotatably connected with a turntable, and the turntable is fixedly connected with the natural gas pipeline. A first through hole is formed in the rotary disc, and a second through hole is formed in the pressure relief pipeline. According to the safety pressure relief equipment for natural gas differential pressure power generation, the purpose of accurately adjusting the relief amount can be achieved, after a rotary knob is manually pulled rightwards, the rotary knob, a square block, a rotating shaft, a worm, a worm gear and a rotating disc can be rotated, the relief amount can be controlled by controlling the overlap ratio of a first through hole and a second through hole, and after the rotary knob is loosened, a button can automatically rebound; the clamping blocks can be clamped into the corresponding clamping grooves, the rotary knobs can be conveniently locked, the clamping grooves are formed in a circle, the circle of clamping grooves are evenly distributed in the pressure relief pipeline in the circumferential direction, and therefore adjusting operation is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas pipelines, in particular to a safety pressure relief device for natural gas differential pressure power generation. Background Art

[0002] During the extraction and transportation of natural gas, there is a flow pressure difference between the natural gas high-pressure wellhead and the gas pipeline pressure. This part of energy can be used to generate electricity. In order to achieve safe pressure relief, safety pressure relief equipment is required.

[0003] Existing pressure relief equipment generally only has one valve inside, and pressure is released by opening the valve. It is difficult to accurately adjust the release volume during the pressure relief process, and it is difficult for people to intuitively understand the release volume. In view of the above problems, the existing equipment needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a safety pressure relief device for natural gas differential pressure power generation, so as to solve the problem that the existing pressure relief device mentioned in the above background technology is generally only provided with a valve inside, and the pressure is released by opening the valve. It is difficult to accurately adjust the release amount during the pressure relief process, and it is difficult for people to intuitively understand the release amount.

[0005] The utility model provides a safety pressure relief device for natural gas differential pressure power generation, comprising a natural gas pipeline, mounting rings are symmetrically fixed at both ends of the natural gas pipeline, a pressure relief mechanism is fixed at the bottom of the natural gas pipeline, the pressure relief mechanism comprises a pressure relief pipeline, a cover frame is fixed on an inner wall of the pressure relief pipeline, a turntable is rotatably connected to the bottom of the cover frame, a first through hole is opened on the turntable, and a second through hole is opened in the pressure relief pipeline.

[0006] Preferably, a rotating shaft is rotatably connected inside the cover frame, and the rotating shaft passes through one side of the pressure relief pipe and is connected to the block, one side of the block is connected to the knob through a compression spring, and the knob sleeve is placed on the outside of the block.

[0007] Through the above technical solution, after pulling the knob, the knob can be rotated, and the block rotates accordingly, thereby driving the shaft to rotate.

[0008] Preferably, a clamping block is fixed on the top of the knob, a clamping slot is provided on one side of the pressure relief pipe, and the clamping slots are evenly distributed on the pressure relief pipe in a circumferential direction, and the clamping block is clamped and connected in one of the clamping slots.

[0009] With the above technical solution, before rotating the knob, it is necessary to pull and rotate it to the right to make the card block leave the card slot, so as to facilitate unlocking the knob.

[0010] Preferably, a worm is fixed to one end of the rotating shaft, and a worm wheel is meshingly connected to the front side of the worm, and a rotating disk is fixed to the bottom of the worm wheel.

[0011] Through the above technical solution, when the shaft rotates, the worm and worm wheel can be used together to drive the turntable to rotate.

[0012] Preferably, a rollover valve is rotatably connected in the bottom of the pressure relief pipe, and the rollover valve is connected to the pressure relief pipe via a volute spring.

[0013] Through the above technical solution, when the pressure is released, the flip valve rotates, and when the pressure release stops, the flip valve automatically rotates back.

[0014] Preferably, a pointer is fixed on one side of the rollover valve, and a scale is fixed on one side of the pressure relief pipe.

[0015] Through the above technical solution, the flip valve can drive the pointer to rotate, and the amount of natural gas released can be understood by observing the pointer and the scale.

[0016] The technical effects that can be obtained by the technical means of the utility model are:

[0017] 1. The safety pressure relief equipment for natural gas differential pressure power generation can achieve the purpose of accurately adjusting the discharge amount through the coordinated use of the pressure relief pipe, rotating shaft, block, knob, card block, card slot, worm, worm wheel, turntable, first through hole and second through hole. After manually pulling the knob to the right, the knob, block, rotating shaft and worm, worm wheel and turntable can be rotated. The discharge amount can be controlled by controlling the overlap degree of the first through hole and the second through hole. After releasing the knob, the button will automatically rebound, and the card block will be stuck in the corresponding card slot, which is convenient for locking the knob. The card slot is provided with a circle, and the circle of card slots is evenly distributed circumferentially on the pressure relief pipe, so that the adjustment operation is more precise.

[0018] 2. The safety pressure relief equipment for natural gas differential pressure power generation can achieve the purpose of intuitively understanding the release volume through the coordinated use of the set flip valve, pointer and scale. During the pressure relief process, the flip valve will rotate under the action of the airflow, and the pointer will rotate accordingly. The release volume of natural gas can be understood by observing the pointer and scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the pressure relief mechanism of the utility model.

[0022] Figure 4 It is a schematic diagram of the connection structure between the pressure relief pipe and the second through hole of the utility model.

[0023] Figure 5It is a schematic diagram of the connection structure between the turntable and the first through hole of the utility model.

[0024] In the figure: 1. natural gas pipeline; 2. mounting ring; 3. pressure relief mechanism; 301. pressure relief pipeline; 302. cover frame; 303. rotating shaft; 304. block; 305. compression spring; 306. knob; 307. block; 308. slot; 309. worm; 310. worm wheel; 311. turntable; 312. first through hole; 313. second through hole; 314. flip valve; 315. pointer; 316. scale. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] The preferred embodiment of the safety pressure relief device for natural gas differential pressure power generation provided by the utility model is as follows Figure 1 to Figure 2 As shown, it includes a natural gas pipeline 1, with mounting rings 2 symmetrically fixed at both ends of the natural gas pipeline 1, a pressure relief mechanism 3 fixed at the bottom of the natural gas pipeline 1, and the pressure relief mechanism 3 includes a pressure relief pipeline 301, a cover frame 302 is fixed on an inner wall of the pressure relief pipeline 301, and a turntable 311 is rotatably connected to the bottom of the cover frame 302, a first through hole 312 is opened on the turntable 311, and a second through hole 313 is opened in the pressure relief pipeline 301.

[0027] In this embodiment, a rotating shaft 303 is rotatably connected inside the cover frame 302, and the rotating shaft 303 passes through one side of the pressure relief pipe 301 and is connected to the block 304. One side of the block 304 is connected to the knob 306 through a compression spring 305, and the knob 306 is placed on the outside of the block 304. After pulling the knob 306 to the right, the knob 306 can be manually rotated, and the block 304 rotates, thereby driving the rotating shaft 303 to rotate.

[0028] Furthermore, a block 307 is fixed to the top of the knob 306, and a slot 308 is provided on one side of the pressure relief pipe 301, and the slots 308 are evenly distributed circumferentially on the pressure relief pipe 301, and the block 307 is engaged and connected in one of the slots 308. Before rotating the knob 306, it is necessary to pull the knob 306 to the right and make the block 307 leave the slot 308 to unlock the knob 306. After rotating the knob 306, the knob 306 can be released, and the knob 306 will automatically pop open under the action of the compression spring 305, and the block 307 will be stuck in the corresponding slot 308, so as to lock the knob 306 conveniently.

[0029] Furthermore, a worm 309 is fixed to one end of the rotating shaft 303, and a worm wheel 310 is meshedly connected to the front side of the worm 309, and a turntable 311 is fixed to the bottom of the worm wheel 310. The rotation of the rotating shaft 303 will drive the worm 309 to rotate, thereby driving the worm wheel 310 to rotate, thereby driving the turntable 311 to rotate, and the discharge amount can be controlled by controlling the degree of overlap between the first through hole 312 and the second through hole 313. Example

[0030] Based on Example 1, a preferred embodiment of the safety pressure relief device for natural gas differential pressure power generation provided by the utility model is as follows: Figures 3 to 5 As shown,

[0031] In this embodiment, a flip valve 314 is rotatably connected to the bottom of the pressure relief pipe 301, and the flip valve 314 is connected to the pressure relief pipe 301 through a volute spring. Pressure relief can be performed by rotating the turntable 311 and making the first through hole 312 correspond to the second through hole 313. When pressure is released, the flip valve 314 will automatically rotate and open under the action of the airflow, and the volute spring can assist the flip valve 314 to rotate and reset.

[0032] Furthermore, a pointer 315 is fixed on one side of the flip valve 314 , and a scale 316 is fixed on one side of the pressure relief pipe 301 . When the flip valve 314 is rotated to open, the pointer 315 rotates accordingly, and the discharge amount can be understood by observing the pointer 315 and the scale 316 .

[0033] When in use, first use the mounting ring 2 and the external bolts to install the natural gas pipeline 1 with the external pipeline, manually pull the knob 306 to the right to make the block 307 leave the slot 308, and then rotate the knob 306, the shaft 303, the worm 309, the worm wheel 310 and the turntable 311 rotate accordingly, and the first through hole 312 can be connected with the second through hole 313 to release the pressure, and the discharge amount can be adjusted by adjusting the connection area between the first through hole 312 and the second through hole 313. In the process of pressure relief, the flip valve 314 rotates under the action of the airflow, thereby driving the pointer 315 to rotate, and the discharge amount can be understood by observing the pointer 315 and the scale 316, thus completing the whole work.

[0034] In summary, the safety pressure relief equipment for natural gas differential pressure power generation achieves the purpose of accurately adjusting the discharge volume and intuitively understanding the discharge volume, meeting people's usage needs.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety pressure relief device for natural gas differential pressure power generation, comprising a natural gas pipeline (1), characterized in that: Mounting rings (2) are symmetrically fixed at both ends of the natural gas pipeline (1), a pressure relief mechanism (3) is fixed at the bottom of the natural gas pipeline (1), the pressure relief mechanism (3) comprises a pressure relief pipeline (301), a cover frame (302) is fixed on an inner wall of the pressure relief pipeline (301), a turntable (311) is rotatably connected to the bottom of the cover frame (302), a first through hole (312) is provided on the turntable (311), and a second through hole (313) is provided in the pressure relief pipeline (301).

2. A safety pressure relief device for natural gas differential pressure power generation according to claim 1, characterized in that: A rotating shaft (303) is rotatably connected inside the cover frame (302), and the rotating shaft (303) passes through one side of the pressure relief pipe (301) and is connected to the block (304). One side of the block (304) is connected to a knob (306) via a compression spring (305), and the knob (306) is sleeved on the outside of the block (304).

3. A safety pressure relief device for natural gas differential pressure power generation according to claim 2, characterized in that: A clamping block (307) is fixed on the top of the knob (306), a clamping slot (308) is provided on one side of the pressure relief pipe (301), and the clamping slots (308) are evenly distributed on the pressure relief pipe (301) in the circumferential direction, and the clamping block (307) is clamped and connected in one of the clamping slots (308).

4. A safety pressure relief device for natural gas differential pressure power generation according to claim 2, characterized in that: A worm (309) is fixed to one end of the rotating shaft (303), and a worm wheel (310) is meshedly connected to the front side of the worm (309), and a rotating disk (311) is fixed to the bottom of the worm wheel (310).

5. A safety pressure relief device for natural gas differential pressure power generation according to claim 1, characterized in that: A rollover valve (314) is rotatably connected in the bottom of the pressure relief pipe (301), and the rollover valve (314) is connected to the pressure relief pipe (301) via a volute spring.

6. A safety pressure relief device for natural gas differential pressure power generation according to claim 5, characterized in that: A pointer (315) is fixed on one side of the rollover valve (314), and a scale (316) is fixed on one side of the pressure relief pipe (301).

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