Ice blockage prevention device for natural gas pressure regulating pry

Abstract

The utility model relates to the technical field of natural gas pressure regulating pry protection, in particular to a natural gas pressure regulating pry ice blockage prevention device, which comprises a natural gas pipeline and a pressure regulating pry, the natural gas pipeline is fixedly communicated with the pressure regulating pry, a valve handle is arranged at the upper end of the pressure regulating pry, a box body is fixed on the outer wall of the natural gas pipeline, and the natural gas pipeline is fixedly communicated with the pressure regulating pry. A reciprocating device is arranged in the box body, and a clamping device is arranged on the outer wall of the box body. Through cooperation of a reciprocating device and a sleeve, an output shaft of a motor continuously rotates to drive the sleeve to reciprocate, a reciprocating lead screw is limited by a fixing rod, shaking of the sleeve in the movement process is reduced, the sleeve is more stable in the movement process, and through cooperation of a clamping device and a cover plate, an inserting rod is inserted into a frame, so that the sleeve is more stable. The cover plate and the box body are in a closed state, the cover plate is opened and closed through insertion connection of the insertion rods and the frame, the workload of operators is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of natural gas pressure regulating skid protection, specifically a natural gas pressure regulating skid anti-icing device. Background Technology

[0002] After natural gas enters the city's pipeline network through long-distance pipelines, pressure changes can cause ice blockage, which can damage natural gas pipelines and valves. Therefore, a natural gas pressure regulating skid anti-ice blockage device is needed to protect the pressure regulating skid equipment from the damage caused by ice blockage.

[0003] For example, a natural gas pressure regulating skid anti-icing device with authorization announcement number "CN220286760U" uses a spiral electric heating tube to move back and forth, providing transitional heating protection for the pipelines on both the upstream and downstream sides of the pressure regulating skid. This effectively prevents sudden temperature changes in the pipeline, avoids secondary ice blockage, and improves the anti-icing effect. However, the device requires rotating a flip plate and then screwing a fixing bolt into a threaded sleeve to press the flip plate shut, thus closing the sealing cover. This increases the workload of the operator and reduces the efficiency of the device. Furthermore, the device uses an electric telescopic rod to drive a guide ring to move on the surface of the natural gas pipeline to heat it. The guide ring is prone to shaking during movement, reducing the stability of the device. Utility Model Content

[0004] The purpose of this invention is to solve the problems of increased workload and reduced efficiency of the device caused by rotating the flip plate and screwing the fixing bolt into the threaded sleeve to close the sealing cover, and the tendency of the guide ring to sway during the movement of the electric telescopic rod to heat the natural gas pipeline, which reduces the stability of the device. Therefore, this invention proposes a natural gas pressure regulating skid anti-icing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a natural gas pressure regulating skid anti-icing device, including a natural gas pipeline and a pressure regulating skid. The natural gas pipeline is fixedly connected to the pressure regulating skid. A valve handle is provided at the upper end of the pressure regulating skid. A box is fixed to the outer wall of the natural gas pipeline. A reciprocating device is provided inside the box. A snap-fit ​​device is provided on the outer wall of the box.

[0007] Preferably, the snap-fit ​​device includes a housing and a frame. The bottom of the frame is fixedly connected to the box body, the outer wall of the housing is fixedly connected to the cover plate, the inner wall of the housing is slidably connected to the insertion rod, the outer wall of the insertion rod is provided with a spring, and a baffle is fixedly connected to the left end of the insertion rod.

[0008] Preferably, the two ends of the spring are fixedly connected to the insert rod and the outer shell respectively, and the right end of the insert rod is inserted into the frame.

[0009] Preferably, the outer wall of the natural gas pipeline is provided with a sleeve, the housing is movably connected to the cover plate via a hinge, and a handrail is fixedly connected to the surface of the cover plate.

[0010] Preferably, the reciprocating device includes a motor and a reciprocating lead screw. The motor is fixedly connected to the housing via a bracket. The motor output shaft is fixedly connected to the reciprocating lead screw. The outer wall of the reciprocating lead screw is threadedly connected to the lead screw nut. The two sides of the lead screw nut are slidably connected to a fixed rod. The outer wall of the lead screw nut is movably connected to a connecting rod via a pin.

[0011] Preferably, the two ends of the reciprocating screw are rotatably connected to the housing via bearings, a fixed rod is fixedly connected to the inner wall of the housing, and the outer side of the connecting rod is movably connected to the sleeve via a pin.

[0012] The present invention provides a natural gas pressure regulating skid anti-icing device with the following advantages: Through the cooperation of the reciprocating device and the sleeve, the output shaft of the starting motor rotates, driving the reciprocating screw to rotate. Simultaneously, the rotation of the reciprocating screw drives the screw nut to move. Under the constraint of the fixed rod, the screw nut reciprocates up and down. When the screw nut moves upward, it pulls the connecting rod, and the connecting rods on both sides pull the sleeve inward. When the screw nut moves downward, the connecting rod drives the sleeve outward. The continuous rotation of the motor's output shaft drives the sleeve in reciprocating motion. The reciprocating screw, constrained by the fixed rod, reduces the swaying of the sleeve during movement, making the sleeve's movement more stable.

[0013] Through the cooperation of the snap-fit ​​device and the cover plate, when the cover plate needs to be opened, the operator pulls the baffle to move outward, causing the insert rod to move synchronously. The insert rod compresses the spring. When the insert rod is no longer inserted into the frame, the operator can open the cover plate to inspect the inside of the box. When the cover plate needs to be closed, after the cover plate is in contact with the box, the spring's reaction force pushes the insert rod to move in the opposite direction, causing the insert rod to insert into the frame, thus achieving a closed state between the cover plate and the box. The opening and closing process of the cover plate is realized by inserting the insert rod into the frame, reducing the operator's workload and improving work efficiency. At the same time, when it is not necessary to close the cover plate, the baffle plate can be pulled out and fixed to the cover plate with bolts to prevent the insert rod and other limiting structures from shaking when the cover plate is opened and closed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A partial frontal sectional view;

[0016] Figure 3 for Figure 1 The formal sectional view;

[0017] Figure 4 for Figure 1 The rear sectional view in the middle;

[0018] Figure 5 for Figure 1 Side sectional view in the middle;

[0019] Figure 6 for Figure 2 Part A of the diagram;

[0020] Figure 7 for Figure 4 Part B of the diagram is shown.

[0021] In the diagram: 1. Natural gas pipeline; 2. Clamping device; 201. Outer casing; 202. Insert rod; 203. Spring; 204. Baffle; 205. Frame; 3. Reciprocating device; 301. Motor; 302. Reciprocating screw; 303. Screw nut; 304. Fixing rod; 305. Connecting rod; 4. Pressure regulating skid; 5. Valve handle; 6. Housing; 7. Sleeve; 8. Cover plate; 9. Hinge; 10. Handrail. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] See attached document Figure 1-7 In this embodiment, a natural gas pressure regulating skid anti-icing device includes a natural gas pipeline 1 and a pressure regulating skid 4. The natural gas pipeline 1 and the pressure regulating skid 4 are configured to meet the actual requirements and working needs. The natural gas pipeline 1 and the pressure regulating skid 4 are fixedly connected. A valve handle 5 is provided at the upper end of the pressure regulating skid 4. A box 6 is fixed to the outer wall of the natural gas pipeline 1. A reciprocating device 3 is provided inside the box 6. A snap-fit ​​device 2 is provided on the outer wall of the box 6.

[0024] The spring 203 is fixedly connected to the insert rod 202 and the outer shell 201 at both ends. The elastic coefficient of the spring 203 is determined according to actual requirements to meet the working needs. The right end of the insert rod 202 is inserted into the frame 205. The outer wall of the natural gas pipeline 1 is provided with a sleeve 7. The sleeve 7 is provided with a heating block. When the external power supply of the heating block is turned on, the heating wire inside the heating block 7 is energized. The heating wire generates heat, which is transferred to the inside of the sleeve 7 through the heating block. The sleeve 7 heats the natural gas pipeline 1. The box 6 is movably connected to the cover plate 8 through the hinge 9. The surface of the cover plate 8 is machined with threaded holes. The surface of the cover plate 8 is fixedly connected with a handrail 10. The two ends of the reciprocating screw 302 are rotatably connected to the box 6 through bearings. The inner wall of the box 6 is fixedly connected with a fixing rod 304. The outer side of the connecting rod 305 is movably connected to the sleeve 7 through a pin. The movement of the connecting rod 305 drives the movement of the sleeve.

[0025] See attached document Figure 1-2 5 and 6: The snap-fit ​​device 2 includes a housing 201 and a frame 205. The bottom of the frame 205 is fixedly connected to the box 6. The outer wall of the housing 201 is fixedly connected to the cover plate 8. The inner wall of the housing 201 is slidably connected to the insertion rod 202. The outer wall of the insertion rod 202 is provided with a spring 203. The left end of the insertion rod 202 is fixedly connected to a baffle 204. The baffle 204 drives the insertion rod 202 to move. The surface of the baffle 204 is machined with threaded holes. When the baffle 204 is pulled to the limit position, the baffle 204 and the cover plate 8 are fixed by bolts.

[0026] See attached document Figure 2-5 7: The reciprocating device 3 includes a motor 301 and a reciprocating lead screw 302. The motor 301 is designed to meet the actual working requirements. The motor 301 is fixedly connected to the housing 6 via a bracket. The output shaft of the motor 301 is fixedly connected to the reciprocating lead screw 302. The outer wall of the reciprocating lead screw 302 is threadedly connected to the lead screw nut 303. The rotation of the reciprocating lead screw 302 drives the lead screw nut 303 to reciprocate. The two sides of the lead screw nut 303 are slidably connected to the fixed rod 304. The outer wall of the lead screw nut 303 is movably connected to the connecting rod 305 via a pin. The movement of the lead screw nut 303 drives the movement of the connecting rod 305.

[0027] Working principle:

[0028] The process of preventing ice blockage in natural gas pipelines:

[0029] The external power supply to the sleeve 7, which contains a heating block, is connected, energizing the heating wire inside the heating block 7. The energized heating wire generates heat, which is transferred to the inside of the sleeve 7 through the heating block, heating the natural gas pipeline 1. The external power supply to the motor 301 is then connected, starting the output shaft of the motor 301 to rotate, driving the reciprocating screw 302 to rotate. Simultaneously, the rotation of the reciprocating screw 302 drives the screw nut 303 to move. Under the constraint of the fixed rod 304, the screw nut 303 moves up and down reciprocally. When the screw nut 303 moves upward, it pulls the connecting rod 305 to move. The connecting rods 305 on both sides pull the sleeve 7 inward. When the screw nut 303 moves downward, the connecting rods 305 drive the sleeve 7 to move outward. The continuous rotation of the output shaft of the motor 301 drives the sleeve 7 to reciprocate, making the movement of the sleeve 7 more stable and completing the anti-icing process for the natural gas pipeline.

[0030] The process of opening and closing the cover:

[0031] When it is necessary to open the cover 8, the operator pulls the baffle 204 outward, causing the insertion rod 202 to move synchronously. The insertion rod 202 compresses the spring 203. When the insertion rod 202 is no longer inserted into the frame 205, and at the same time, the threaded hole on the surface of the baffle 204 coincides with the threaded hole on the surface of the cover 8, the baffle 204 is fixed to the surface of the cover 8 with bolts. The operator can then open the cover 8 to inspect the inside of the box 6. When it is necessary to close the cover 8, after the cover 8 is in contact with the box 6, the bolts are removed. Under the reaction force of the spring 203, the insertion rod 202 is pushed to move in the opposite direction, so that the insertion rod 202 is inserted into the frame 205, so that the cover 8 and the box 6 are closed, completing the process of opening and closing the cover.

[0032] Meanwhile, when the cover plate 8 does not need to be closed, the baffle 204 can be pulled out and fixed to the cover plate 8 with bolts to prevent the limiting structure such as the insertion rod 202 from shaking when the cover plate 8 is opened and closed.

[0033] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A natural gas pressure regulating skid anti-icing device, comprising a natural gas pipeline (1) and a pressure regulating skid (4), wherein the natural gas pipeline (1) and the pressure regulating skid (4) are fixedly connected, characterized in that: The pressure regulating skid (4) is provided with a valve handle (5) at the upper end. The outer wall of the natural gas pipeline (1) is fixed with a box (6). The box (6) is provided with a reciprocating device (3) inside. The outer wall of the box (6) is provided with a snap-fit ​​device (2).

2. The natural gas pressure regulating skid anti-icing device according to claim 1, characterized in that: The snap-fit ​​device (2) includes a housing (201) and a frame (205). The bottom of the frame (205) is fixedly connected to the box (6). The outer wall of the housing (201) is fixedly connected to the cover plate (8). The inner wall of the housing (201) is slidably connected to the insertion rod (202). The outer wall of the insertion rod (202) is provided with a spring (203). The left end of the insertion rod (202) is fixedly connected to a baffle (204).

3. The natural gas pressure regulating skid anti-icing device according to claim 2, characterized in that: The two ends of the spring (203) are fixedly connected to the insert rod (202) and the outer shell (201) respectively, and the right end of the insert rod (202) is inserted into the frame (205).

4. The natural gas pressure regulating skid anti-icing device according to claim 1, characterized in that: The outer wall of the natural gas pipeline (1) is provided with a sleeve (7), the box (6) is movably connected to the cover plate (8) by a hinge (9), and a handrail (10) is fixedly connected to the surface of the cover plate (8).

5. The natural gas pressure regulating skid anti-icing device according to claim 1, characterized in that: The reciprocating device (3) includes a motor (301) and a reciprocating lead screw (302). The motor (301) is fixedly connected to the housing (6) via a bracket. The output shaft of the motor (301) is fixedly connected to the reciprocating lead screw (302). The outer wall of the reciprocating lead screw (302) is threadedly connected to the lead screw nut (303). The two sides of the lead screw nut (303) are slidably connected to the fixed rod (304). The outer wall of the lead screw nut (303) is movably connected to the connecting rod (305) via a pin.

6. The natural gas pressure regulating skid anti-icing device according to claim 5, characterized in that: The two ends of the reciprocating lead screw (302) are rotatably connected to the housing (6) through bearings. A fixing rod (304) is fixedly connected to the inner wall of the housing (6). The outer side of the connecting rod (305) is movably connected to the sleeve (7) through a pin.

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