Gas pressure regulating box pressure measuring port gas flow direction changing structure

Abstract

The utility model relates to gas pressure regulating tank pressure measurement technical field especially relates to a kind of gas pressure regulating tank pressure measurement port airflow direction changing structure.The gas pressure regulating tank pressure measurement port airflow direction changing structure includes middle pipe, and the pipe wall of middle pipe is fixedly installed with connecting pipe on the bottom, and the middle pipe above connecting pipe is fixedly installed with oblique pressure measuring pipe, and the bottom of middle pipe is installed with lock component;The top of middle pipe is installed with speed reduction component.The gas pressure regulating tank pressure measurement port airflow direction changing structure provided by the utility model is compared with relevant technology, the airflow direction of the pressure measurement port transverse outer row is changed to longitudinal and oblique in the application, and the oblique design of oblique pressure measuring pipe makes detection operation not need to face airflow, and staff can complete detection in side, avoid high-pressure airflow direct impact on human body, fundamentally reduce high-pressure injury risk, and the airflow of longitudinal discharge is dispersed after being handled by speed reduction component, further reduce the impact force of airflow.

Description

Technical Field

[0001] This utility model relates to the field of gas pressure regulating box pressure measurement technology, and in particular to a gas pressure regulating box pressure measuring port airflow reversing structure. Background Technology

[0002] In gas transmission and distribution systems, gas pressure regulating boxes are critical equipment, and the safe operation and accurate detection of their pressure measuring ports directly affect the system's operational stability and the safety of personnel. In existing technologies, gas pressure regulating box pressure measuring ports are generally installed horizontally, and their height is often equal to that of a person. This design has significant limitations: Firstly, when performing gas replacement or pressure measurement operations, personnel must face the direction of the horizontally emitted airflow. However, gas flow often carries pressure, and direct impact from high-pressure airflow can cause mechanical injury. Furthermore, the risk of gas leakage increases due to the close operating distance. Secondly, the horizontal airflow direction is unidirectional, requiring the detection equipment to be installed directly facing the airflow. This not only limits the operating space but also makes it easy for high-pressure airflow to directly impact the detection element, leading to fluctuations in the detection data and affecting accuracy.

[0003] Therefore, it is necessary to provide a new gas pressure regulating box pressure measuring port airflow reversing structure to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a gas pressure regulating box pressure measuring port airflow reversing structure.

[0005] The gas pressure regulating box pressure measuring port airflow reversing structure provided by this utility model includes a central connecting pipe. A connecting pipe communicating with the central connecting pipe is fixedly installed on the pipe wall near the bottom of the central connecting pipe, and an inclined pressure measuring pipe communicating with the central connecting pipe is fixedly installed on the central connecting pipe above the connecting pipe.

[0006] A speed-reducing component is installed at the top of the central connecting pipe, and the speed-reducing component includes an exhaust hopper. The exhaust hopper is fixedly installed at the top of the central connecting pipe, and a central plate is fixedly installed on the exhaust hopper. The central plate is provided with multiple annularly distributed pressure relief ports, and a flow-reducing plate that is elastically connected is installed on the lower surface of the central plate.

[0007] The bottom of the connecting pipe is equipped with an emergency locking component, which includes an installation sleeve. The installation sleeve is fixedly installed at the bottom of the connecting pipe, and a connecting rod is inserted into a threaded through hole at the bottom of the installation sleeve. A piston rod is rotatably connected to the top of the connecting rod, and the piston rod is slidably connected to the connecting pipe.

[0008] Preferably, a guide rod is fixedly installed on the lower center of the central disk, and a rod cap is fixedly installed on the bottom of the guide rod. The flow reduction disk is sleeved on the guide rod and slidably connected to the guide rod, and a spring A is sleeved on the guide rod.

[0009] Preferably, one end of the spring A is fixedly connected to the lower surface of the central disk, and the other end of the spring A is fixedly connected to the upper surface of the flow reduction disk.

[0010] Preferably, the guide rod has two symmetrically distributed limiting grooves, and the flow reducing plate has two symmetrically distributed guide plates fixedly installed on it, with the guide plates inserted into the corresponding limiting grooves and slidably connected to the limiting grooves.

[0011] Preferably, a rubber gasket ring is fixedly fitted at the edge of the lower plate of the flow reducing plate.

[0012] Preferably, the section of the connecting rod near the piston rod is provided with a threaded portion that matches the threaded through hole, and a spring B is sleeved on the connecting rod.

[0013] Preferably, one end of the spring B is fixedly connected to the lower cylindrical surface of the piston rod, and the other end of the spring B is fixedly connected to the inner bottom wall of the mounting sleeve.

[0014] Preferably, a handle is fixedly installed at the bottom of the connecting rod.

[0015] Preferably, the connecting pipe is equipped with a rotatable threaded interface, and the inclined pressure measuring pipe is fixedly equipped with a threaded joint.

[0016] Compared with related technologies, the gas pressure regulating box pressure measuring port airflow reversing structure provided by this utility model has the following beneficial effects:

[0017] 1. Compared with related technologies, this application changes the direction of the airflow from the horizontal outward discharge of the pressure measuring port to the vertical and oblique direction. The oblique design of the oblique pressure measuring tube means that the detection operation does not need to face the airflow directly. The staff can complete the detection from the side, avoiding the direct impact of high pressure airflow on the human body and fundamentally reducing the risk of high pressure injury. The airflow discharged vertically is dispersed after being processed by the deceleration component, which further reduces the impact force of the airflow.

[0018] 2. In case of an emergency during the testing phase, reverse the handle to drive the threaded part to slide out of the threaded through hole. At this time, under the action of the spring force of spring B, the piston rod quickly slides up past the connection between the central connecting pipe and the connecting pipe, thus sealing the connecting pipe. Then close the valve on the pressure test port, thereby greatly improving safety.

[0019] 3. When the airflow enters the exhaust hopper, the air pressure drives the flow-reducing plate to slide up along the guide rod. At the same time, spring A is compressed, so the airflow can overflow from the gap between the flow-reducing plate and the inner surface of the exhaust hopper, and be discharged and dispersed through the pressure relief port. Since the inner diameter of the exhaust hopper increases from bottom to top, the exhaust hopper, together with the flow-reducing plate and spring A, greatly reduces the rate at which the airflow overflows from the top of the central connecting pipe. Attached Figure Description

[0020] Figure 1 A schematic diagram of a preferred embodiment of the gas pressure regulating box pressure measuring port airflow reversal structure provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shows the structure when the connecting pipe is connected to the central connecting pipe in cross-section.

[0022] Figure 3 for Figure 1 The diagram shown is a structural schematic of the piston rod sealing the connecting pipe when viewed in cross-section.

[0023] Figure 4 for Figure 2 A cross-sectional view of the deceleration component shown.

[0024] Figure 5 for Figure 3 The diagram shows a cross-sectional view of the emergency locking component.

[0025] The following are the labeling elements in the diagram: 1. Central connecting pipe; 2. Connecting pipe; 21. Threaded interface; 3. Angled pressure measuring pipe; 31. Threaded joint; 4. Speed ​​reduction component; 41. Exhaust hopper; 42. Central disc; 42a. Pressure relief port; 43. Guide rod; 43a. Limiting groove; 44. Flow reducing disc; 441. Guide plate; 442. Rubber gasket ring; 45. Spring A; 5. Emergency lock component; 51. Mounting sleeve; 52. Connecting rod; 521. Threaded part; 53. Piston column; 54. Spring B; 55. Handle. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] Please see Figures 1 to 5The present invention provides a gas pressure regulating box pressure measuring port airflow reversing structure, which includes a central connecting pipe 1, a connecting pipe 2, an inclined pressure measuring pipe 3, a speed reduction component 4, and an emergency locking component 5.

[0029] In the embodiments of this utility model, please refer to Figures 1 to 5 A connecting pipe 2, which communicates with the central connecting pipe 1, is fixedly installed on the pipe wall near the bottom of the central connecting pipe 1. An inclined pressure measuring pipe 3, which communicates with the central connecting pipe 1, is fixedly installed on the central connecting pipe 1 above the connecting pipe 2. A threaded interface 21 with a rotating connection is installed on the pipe end of the connecting pipe 2. A threaded joint 31 is fixedly installed on the pipe end of the inclined pressure measuring pipe 3.

[0030] It should be noted that: the threaded interface 21 on the connecting pipe 2 is threadedly fixed to the horizontal pressure testing port of the gas pipeline, keeping the central connecting pipe 1 in a nearly vertical state. Then, the gas pipeline concentration detector is connected to the threaded connector 31, and the valve on the gas pipeline pressure testing port is opened. Therefore, the airflow enters the central connecting pipe 1 through the connecting pipe 2 (the bottom of the central connecting pipe 1 is sealed by the emergency locking component 5). Most of the airflow is depressurized and dispersed through the deceleration component 4 at the top of the central connecting pipe 1. The remaining airflow is discharged through the inclined pressure testing pipe 3 and the gas pipeline concentration detector is used to detect the pressure and concentration. This allows the staff to check whether the gas concentration meets the standard through this port. Compared with related technologies, this application changes the direction of the horizontally discharged airflow of the pressure testing port to longitudinal and inclined. The inclined design of the inclined pressure testing pipe 3 means that the detection operation does not need to be directly facing the airflow. The staff can complete the detection from the side, avoiding the direct impact of high-pressure airflow on the human body and fundamentally reducing the risk of high-pressure injury. The longitudinally discharged airflow is dispersed after being processed by the deceleration component 4, further reducing the impact force of the airflow.

[0031] In the embodiments of this utility model, please refer to Figures 1 to 5 An emergency locking component 5 is installed at the bottom of the central connecting pipe 1. The emergency locking component 5 includes a mounting sleeve 51, which is fixedly installed at the bottom of the central connecting pipe 1. A connecting rod 52 is inserted into a threaded through hole at the bottom of the mounting sleeve 51. A piston column 53 is rotatably connected to the top of the connecting rod 52. The piston column 53 is slidably connected to the central connecting pipe 1. The rod section of the connecting rod 52 near the piston column 53 is provided with a threaded part 521 that matches the threaded through hole. A spring B54 is sleeved on the connecting rod 52. One end of the spring B54 is fixedly connected to the lower cylindrical surface of the piston column 53, and the other end of the spring B54 is fixedly connected to the inner bottom wall of the mounting sleeve 51. A handle 55 is fixedly installed at the bottom of the connecting rod 52.

[0032] It should be noted that: after this application is connected to the pressure measuring port and the gas pipeline concentration detector, pull down the handle 55 to drive the piston column 53 to slide down through the connection between the central connecting pipe 1 and the connecting pipe 2 until the threaded part 521 abuts against the threaded through hole. Then rotate the connecting rod 52 to drive the threaded part 521 to be threadedly fixed to the threaded through hole at the bottom of the mounting sleeve 51. At this time, the spring B54 is compressed, and the central connecting pipe 1 and the connecting pipe 2 are connected to each other. Therefore, the airflow entering through the connecting pipe 2 can enter the central connecting pipe 1 and the connecting pipe 2.

[0033] In case of an emergency during the testing phase, the reverse handle 55 drives the threaded part 521 to slide out of the threaded through hole. At this time, under the action of the spring force of the spring B54, the piston rod 53 quickly slides up past the connection between the central connecting pipe 1 and the connecting pipe 2, thus sealing the connecting pipe 2. Then the valve on the pressure test port is closed, which greatly improves safety.

[0034] In the embodiments of this utility model, please refer to Figures 1 to 5 A speed-reducing component 4 is installed on the top of the central connecting pipe 1. The speed-reducing component 4 includes an exhaust hopper 41, which is fixedly installed on the top of the central connecting pipe 1. A central disk 42 is fixedly installed on the exhaust hopper 41. The central disk 42 is provided with multiple annularly distributed pressure relief ports 42a. A flow-reducing disk 44 is elastically connected to the lower disk surface of the central disk 42. A guide rod 43 is fixedly installed in the center of the lower disk of the central disk 42. A rod cap is fixedly installed at the bottom of the guide rod 43. The flow-reducing disk 44 is sleeved on the guide rod 43 and slidably connected to the guide rod 43. A spring A45 is sleeved on the guide rod 43. One end of the spring A45 is fixedly connected to the lower disk surface of the central disk 42, and the other end of the spring A45 is fixedly connected to the upper disk surface of the flow-reducing disk 44.

[0035] It should be noted that when the airflow enters the exhaust hopper 41, the air pressure drives the flow-reducing plate 44 to slide upward along the guide rod 43. At the same time, the spring A45 is compressed, so the airflow can overflow from the gap between the flow-reducing plate 44 and the inner surface of the exhaust hopper 41, and be discharged and dispersed through the pressure relief port 42a. Since the inner diameter of the exhaust hopper 41 increases from bottom to top, the exhaust hopper 41, together with the flow-reducing plate 44 and the spring A45, greatly reduces the rate at which the airflow overflows from the top of the central connecting pipe 1.

[0036] In this embodiment: spring A45 is made of silicon manganese spring steel with a spring force coefficient of 0.8-1.2 N / mm, ensuring that 0.05 MPa air pressure can drive the flow reduction plate 44, while spring B54 is rationally selected according to the needs of the staff.

[0037] Furthermore, the guide rod 43 is provided with two symmetrically distributed limiting grooves 43a, and two symmetrically distributed guide plates 441 are fixedly installed on the flow reduction plate 44. The guide plates 441 are inserted into the corresponding limiting grooves 43a and slidably connected with the limiting grooves 43a, so as to avoid the risk of the flow reduction plate 44 rotating on the guide rod 43, and at the same time improve the stability of the flow reduction plate 44 when sliding up and down along the guide rod 43.

[0038] Furthermore, a rubber gasket ring 442 is fixedly fitted at the edge of the lower plate surface of the flow reducer 44, which reduces the impact force when the flow reducer 44 abuts against the inner surface of the exhaust hopper 41. The rubber gasket ring 442 is made of hydrogenated nitrile butadiene rubber (HNBR) or fluororubber (FKM) to improve its corrosion resistance.

[0039] In addition, the components in this application are regularly maintained and serviced by staff.

[0040] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas pressure regulating tank pressure tap flow direction structure, characterized in that, Includes a central connecting pipe (1), a connecting pipe (2) connected to the central connecting pipe (1) is fixedly installed on the pipe wall near the bottom of the central connecting pipe (1), and an inclined pressure measuring pipe (3) connected to the central connecting pipe (1) is fixedly installed on the central connecting pipe (1) above the connecting pipe (2). A speed reduction component (4) is installed on the top of the central connecting pipe (1), and the speed reduction component (4) includes an exhaust hopper (41). The exhaust hopper (41) is fixedly installed on the top of the central connecting pipe (1), and a central plate (42) is fixedly installed on the exhaust hopper (41). The central plate (42) is provided with multiple annularly distributed pressure relief ports (42a), and a flow reduction plate (44) with elastic connection is installed on the lower plate surface of the central plate (42). An emergency locking component (5) is installed at the bottom of the central connecting pipe (1), and the emergency locking component (5) includes an installation sleeve (51). The installation sleeve (51) is fixedly installed at the bottom of the central connecting pipe (1), and a connecting rod (52) is inserted into the threaded through hole at the bottom of the installation sleeve (51). A piston column (53) is rotatably connected to the top of the connecting rod (52), and the piston column (53) is slidably connected to the central connecting pipe (1).

2. The gas pressure regulating tank pressure tap gas flow direction changing structure according to claim 1, characterized in that, A guide rod (43) is fixedly installed on the lower center of the central disk (42), and a rod cap is fixedly installed on the bottom of the guide rod (43). The flow reduction disk (44) is sleeved on the guide rod (43) and slidably connected to the guide rod (43). A spring A (45) is sleeved on the guide rod (43).

3. The gas pressure regulating tank pressure tap gas flow direction changing structure according to claim 2, characterized by, One end of the spring A (45) is fixedly connected to the lower surface of the central disk (42), and the other end of the spring A (45) is fixedly connected to the upper surface of the flow-reducing disk (44).

4. The gas pressure regulating tank pressure tap gas flow redirection structure of claim 2, wherein, The guide rod (43) has two symmetrically distributed limiting grooves (43a), and the flow reducing plate (44) has two symmetrically distributed guide pieces (441) fixedly installed on it. The guide pieces (441) are inserted into the corresponding limiting grooves (43a) and slidably connected to the limiting grooves (43a).

5. The gas flow reversing structure at the pressure measuring port of the gas pressure regulating box according to claim 2, characterized in that, A rubber gasket ring (442) is fixedly fitted at the edge of the lower plate surface of the flow reducing plate (44).

6. The gas pressure regulating tank pressure tap gas flow redirection structure of claim 1, wherein, The connecting rod (52) near the piston rod (53) has a threaded part (521) that matches the threaded through hole, and a spring B (54) is sleeved on the connecting rod (52).

7. The gas flow reversing structure at the pressure measuring port of the gas pressure regulating box according to claim 6, characterized in that, One end of the spring B (54) is fixedly connected to the lower cylindrical surface of the piston rod (53), and the other end of the spring B (54) is fixedly connected to the inner bottom wall of the mounting sleeve (51).

8. The gas flow reversing structure at the pressure measuring port of the gas pressure regulating box according to claim 6, characterized in that, A handle (55) is fixedly installed at the bottom of the connecting rod (52).

9. The gas flow reversing structure at the pressure measuring port of the gas pressure regulating box according to claim 1, characterized in that, The connecting pipe (2) is equipped with a rotatable threaded interface (21) on its pipe end, and the inclined pressure measuring pipe (3) is fixedly equipped with a threaded joint (31) on its pipe end.

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