Safety detection device for hydrogen-mixed natural gas conveying pipeline

Abstract

The utility model relates to the technical field of natural gas conveying, in particular to a safety detection device for a hydrogen-mixed natural gas conveying pipeline. The safety detection device for the hydrogen-mixed natural gas conveying pipeline comprises a base plate and locking universal wheels fixedly installed at the four corners of the bottom end of the base plate, and a handle is fixedly installed on one side of the base plate; the two supporting rods are symmetrically installed on the base plate, a lifting seat is installed on the two supporting rods in a sliding mode, a supporting shaft is rotatably installed in a groove of the lifting seat, an overturning seat is fixedly installed on the supporting shaft, a detection assembly for detecting pipeline leakage is installed on the overturning seat, and the detection assembly comprises a sliding seat; the sliding seat is fixedly installed at one end of the overturning seat, a bidirectional threaded rod is rotatably installed on the sliding seat, sliding arms are symmetrically installed on the bidirectional threaded rod in a threaded mode, the sliding arms are in sliding fit with the sliding seat, and detection cylinders are fixedly installed at the ends, away from the bidirectional threaded rod, of the sliding arms. The device provided by the utility model has the advantages of simple structure and flexibility in detection and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas conveying technical field especially relates to a hydrogen mixed natural gas conveying pipeline's safety detection device. BACKGROUND

[0002] Natural gas is mainly used as fuel, can manufacture carbon black, chemical and liquefied petroleum gas, and the propane, butane produced from natural gas is an important raw material of modern industry, and hydrogen is a kind of high-quality clean energy that is extremely easy to burn and does not produce carbon dioxide in the combustion process, in order to improve the utilization rate of hydrogen, the current distributed hydrogen production mixed combustion technology belongs to alkaline water electrolysis hydrogen production technology, but it is different from the traditional alkaline water electrolysis hydrogen production process, the biggest difference lies in that hydrogen and oxygen are not separated, purified, compressed, transported and used during the hydrogen production process, which reduces the hydrogen energy use cost and safety risk, makes the application of hydrogen energy more convenient, safer, more reliable and more economical.

[0003] In the conveying process of hydrogen, the hydrogen-oxygen mixed gas is mixed with natural gas and then conveyed to a hydrogen-oxygen mixed gas special combustion machine to achieve the purpose of saving gas, reducing carbon and lowering nitrogen. Since the hydrogen molecules of hydrogen are extremely small and have strong permeability, they are more likely to leak from the pipe material, sealing elements and valves, so it is necessary to conduct regular safety detection on the conveying pipeline. The safety detection device for hydrogen mixed natural gas conveying pipeline disclosed in the prior art with publication number CN216791511U includes a device shell, a device base, an adjusting cylinder, an adjusting support shell, an adjusting support structure and a sealing detection structure. The device shell is a cavity structure with an open upper end. The device base is arranged on the inner bottom wall of the device shell. The adjusting cylinder is arranged on the inner bottom wall of the device base. The free end of the adjusting cylinder extends to the outside of the device base through the top wall of the device base. The adjusting cylinder has two groups. The adjusting support shell is arranged on the free ends of the two groups of adjusting cylinders. The adjusting support structure is arranged in the adjusting support shell. The sealing detection structure is arranged on the adjusting support shell. The utility model relates to the technical field of natural gas conveying, and specifically provides a safety detection device for hydrogen mixed natural gas conveying pipeline, which has a reasonable structure and is simple, can adjust the detection height according to the height of the pipeline, and can continuously and quickly detect longer pipelines. This kind of device is suitable for moving detection from the bottom of the conveying pipeline erected at a high place, but the gas pipeline is usually laid along the ground or the edge of the wall in actual laying, which brings new problems to the safety detection of the conveying pipeline.

[0004] Therefore, it is necessary to provide a new safety detection device for hydrogen mixed natural gas conveying pipeline to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a safety detection device for hydrogen mixed natural gas conveying pipeline.

[0006] The safety detection device of the hydrogen-mixed natural gas conveying pipeline comprises a base plate, locking universal wheels fixedly installed at four corners of a bottom end of the base plate, and a handle fixedly installed at one side of the base plate.

[0007] The support rods are symmetrically installed on the base plate, and lifting seats are slidably installed on the support rods.

[0008] Preferably, the support rods are composed of a plurality of T-shaped joints, T-shaped grooves are formed in the lifting seats and are slidably matched with the T-shaped joints, a plurality of pin holes are uniformly formed in the T-shaped joints, and threaded limiting rods are threadedly installed in the lifting seats and are inserted into the pin holes.

[0009] Preferably, the back sides of the two adjacent T-shaped joints are connected through hinges, and buckle frames are installed between the two adjacent T-shaped joints.

[0010] Preferably, hand wheels are fixedly installed at two ends of the bidirectional threaded rod.

[0011] Preferably, the detection cylinder is in a semicircular arc shape, a plurality of hydrogen electrochemical sensors are uniformly embedded in the inner side wall of the detection cylinder, and the plurality of hydrogen electrochemical sensors are electrically connected with early warning alarms.

[0012] Preferably, the early warning alarms are electrically connected with an electric control cabinet, and the electric control cabinet is fixedly installed on the base plate.

[0013] Preferably, the control device comprises a worm gear, the worm gear is fixedly sleeved on the support shaft, a worm is rotatably installed on one side of the worm gear on the lifting seat, the worm is engaged with the worm gear, and knobs are fixedly installed at two ends of the worm.

[0014] Compared with the related art, the safety detection device of the hydrogen-mixed natural gas conveying pipeline has the following beneficial effects:

[0015] 1. The utility model provides a kind of safety detection device of hydrogen mixed natural gas conveying pipeline, by setting lifting seat on support rod, detection component is installed on lifting seat by turnover seat, it is convenient to the position height of monitoring component, detection orientation is flexibly adjusted, it is convenient to move overhauling for complex gas transmission pipeline.

[0016] 2, support rod is spliced by several T joints, after use, it is convenient to fold and store. DRAWINGS

[0017] Figure 1 The structure diagram of a preferred embodiment of the safety detection device of hydrogen mixed natural gas conveying pipeline provided by the utility model is shown;

[0018] Figure 2 The structure diagram of detection component installed on lifting seat provided by the utility model is shown;

[0019] Figure 3 The structure diagram of sliding seat installed on turnover seat provided by the utility model is shown;

[0020] Figure 4 For Figure 1 The local enlarged view of A shown in the figure.

[0021] Marked number in figure: 1, base plate;11, handle;2, locking universal wheel;3, support rod;31, T joint;32, buckle frame;301, pin hole;4, lifting seat;41, support shaft;42, turnover seat;43, threaded limiting rod;5, detection component;51, sliding seat;52, bidirectional threaded rod;521, hand wheel;53, sliding arm;54, detection cylinder;55, hydrogen electrochemical sensor;56, early warning alarm;57, electric control cabinet;6, control element;61, worm wheel;62, worm;63, knob. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0024] Please refer to Figures 1 to 4 The safety detection device of hydrogen mixed natural gas conveying pipeline provided by the utility model embodiment, the safety detection device of hydrogen mixed natural gas conveying pipeline includes:

[0025] The base plate 1 is provided with four locking universal wheels 2 fixedly installed at the four corners of the bottom end of the base plate 1, and a handle 11 is fixedly installed on one side of the base plate 1.

[0026] The support rods 3 are provided in two groups, and the two groups of support rods 3 are symmetrically installed on the base plate 1, and two groups of lifting seats 4 are slidably installed on the two groups of support rods 3, a support shaft 41 is rotatably installed in the groove of the lifting seat 4, a turnover seat 42 is fixedly installed on the support shaft 41, a detection assembly 5 for detecting pipeline leakage is installed on the turnover seat 42, the detection assembly 5 comprises a sliding seat 51 fixedly installed at one end of the turnover seat 42, a bidirectional threaded rod 52 rotatably installed on the sliding seat 51, a sliding arm 53 symmetrically and threadedly installed on the bidirectional threaded rod 52, the sliding arm 53 is in sliding fit with the sliding seat 51, and a detection cylinder 54 is fixedly installed at one end of the sliding arm 53 away from the bidirectional threaded rod 52, and a control knob 6 is installed on the lifting seat 4 to control the rotation of the turnover seat 42.

[0027] The two ends of the bidirectional threaded rod 52 are fixedly installed with hand wheels 521, the detection cylinder 54 is in the shape of a semicircular arc, the inner side wall of the detection cylinder 54 is uniformly embedded with a plurality of hydrogen electrochemical sensors 55, and the plurality of hydrogen electrochemical sensors 55 are electrically connected with a pre-warning alarm 56.

[0028] The pre-warning alarm 56 is electrically connected with an electric control cabinet 57, and the electric control cabinet 57 is fixedly installed on the base plate 1.

[0029] It should be noted that, in use, the lifting seat 4 is pulled to slide up and down along the support rod 3 to adjust the height of the lifting seat 4, then the control knob 6 is used to control the support shaft 41 to drive the turnover seat 42 to turn on the lifting seat 4 to adjust the angle of the turnover seat 42, thereby adjusting the position height and inclination angle of the detection assembly 5 on the turnover seat 42, until the detection assembly 5 is adjusted to fit the gas pipeline (the two detection cylinders 54 of the detection assembly 5 are located on the two sides of the gas pipeline), then the hand wheels 521 are rotated to drive the bidirectional threaded rod 52 to rotate, thereby driving the two sliding arms 53 to drive the detection cylinders 54 to approach each other, until the gas pipeline is wrapped inside, then the base plate 1 is pulled by the handle 11 to move along the gas pipeline by using the locking universal wheels 2, and in the moving process, the pipeline is detected for leakage by using the plurality of hydrogen electrochemical sensors 55 in the detection cylinders 54, and when hydrogen leakage is detected, the pre-warning alarm 56 issues a pre-warning.

[0030] It should be further noted that the detection cylinder 54 is adapted to the gas pipeline, the inner diameters of the inner walls of the two ends of the detection cylinder 54 are adapted to the diameter of the conveying pipeline, and the inner diameter of the inner wall of the middle part is greater than the diameter of the flange connected to the gas pipeline, so as to facilitate the fitting on the gas pipeline for hydrogen leakage detection.

[0031] In the embodiment of the utility model, please refer to Figures 1 to 4 The support rod 3 is composed of several T-shaped joints 31, T-shaped grooves that are slidably matched with the T-shaped joints 31 are formed on the lifting seat 4, pin holes 301 are uniformly formed on the T-shaped joints 31, and threaded limiting rods 43 that are inserted into the pin holes 301 are threadedly installed on the lifting seat 4.

[0032] The back sides of the two adjacent T-shaped joints 31 are connected through hinges, buckle frames 32 are installed between the two adjacent T-shaped joints 31, and the buckle frames 32 are fixedly connected with the two adjacent T-shaped joints 31 through pin rods.

[0033] It should be noted that: the support rod 3 is formed by splicing several T-shaped joints 31 through hinges, which is convenient for adjusting the height and the support angle (which can be adjusted to be completely vertical or to be vertical at the bottom and horizontal at the top) of the support rod 3, and after adjustment, the buckle frames 32 and the pin rods are fixed in the pin holes 301, the fixing is completed, the lifting seat 4 is moved along the support rod 3, and after movement, the lifting seat 4 is fixed by inserting the threaded limiting rods 43 into the pin holes 301 formed in the T-shaped joints 31.

[0034] In the embodiment of the utility model, please refer to Figures 1 to 4 The control device 6 comprises a worm wheel 61, the worm wheel 61 is fixedly sleeved on the support shaft 41, a worm 62 is rotatably installed on one side of the worm wheel 61 on the lifting seat 4, the worm 62 is engaged with the worm wheel 61, and both ends of the worm 62 are fixedly installed with knobs 63.

[0035] It should be noted that: when the control device 6 is used, the worm 62 is driven to rotate by twisting the knob 63, the worm 62 is engaged with the worm wheel 61, so as to drive the worm wheel 61 to drive the support shaft 41 to rotate, so that the support shaft 41 synchronously drives the turnover seat 42 to overturn (so that the shaft center of the support shaft 41 rotates on the lifting seat 4), the sliding seat 51 is synchronously rotated when the turnover seat 42 overturns, and then the orientation of the sliding arm 53 and the detection cylinder 54 is adjusted, the angle adjustment of the detection assembly 5 is realized, and the worm wheel 61 and the worm 62 are locked after adjustment.

[0036] The working principle of the safety detection device of the hydrogen mixed natural gas conveying pipeline is as follows: in use, the height of the lifting seat 4 is adjusted by pulling the lifting seat 4 to slide up and down along the supporting rod 3, the fixed lifting seat 4 is inserted into the pin hole 301 of the T-shaped joint 31 by the threaded limiting rod 43, then the knob 63 is screwed to drive the worm 62 to rotate, the worm 62 is engaged with the worm gear 61, so that the worm gear 61 drives the supporting shaft 41 to rotate, thereby synchronously driving the turnover seat 42 to overturn, for adjusting the angle of the detection assembly 5, after adjustment, the self-locking property of the worm gear 61 and the worm 62 is utilized for locking, thereby realizing the adjustment of the position height and the inclination angle of the detection assembly 5 on the turnover seat 42, until the detection assembly 5 is adjusted to be attached to the gas conveying pipeline (two detection barrels 54 of the detection assembly 5 are located on both sides of the gas conveying pipeline), then the hand wheel 521 is rotated to drive the bidirectional threaded rod 52 to rotate, thereby driving the two slide arms 53 to drive the detection barrels 54 to approach each other, until the gas conveying pipeline is wrapped inside, then the base plate 1 is pulled by the handle 11 to move along the gas conveying pipeline by the locking universal wheel 2, in the moving process, the pipeline is detected by the plurality of hydrogen electrochemical sensors 55 in the detection barrel 54, when hydrogen leakage is detected, the early warning alarm 56 issues a warning.

[0037] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed herein.

[0038] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A safety detection device for a hydrogen-mixed natural gas transmission pipeline, comprising: A base plate (1), and locking universal wheels (2) fixedly mounted on the four corners of the bottom end of the base plate (1), and a handle (11) fixedly mounted on one side of the base plate (1); It is characterized by further comprising: The support rod (3) is provided with two groups, the two groups of support rods (3) are symmetrically mounted on the base plate (1), and the two groups of support rods (3) are slidably mounted with a lifting seat (4), a support shaft (41) is rotatably mounted in the groove of the lifting seat (4), a flip seat (42) is fixedly mounted on the support shaft (41), a detection component (5) for detecting pipeline leakage is mounted on the flip seat (42), the detection component (5) includes a slide (51), the slide (51) is fixedly mounted on one end of the flip seat (42), and a bidirectional threaded rod (52) is rotatably mounted on the slide (51), a sliding arm (53) is symmetrically threaded on the bidirectional threaded rod (52), the sliding arm (53) is slidably matched with the slide (51), and a detection cylinder (54) is fixedly mounted on one end of the slide (53) away from the bidirectional threaded rod (52), and an adjustment control (6) for controlling the rotation of the flip seat (42) is mounted on the lifting seat (4).

2. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 1, characterized in that: The support rod (3) is composed of a plurality of T-shaped sections (31); a T-shaped slot slidably matched with the T-shaped section (31) is provided on the lifting seat (4); a plurality of pin holes (301) are evenly provided on the T-shaped section (31); and a threaded limiting rod (43) is threadedly mounted on the lifting seat (4) and plugged into and matched with the pin holes (301).

3. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 2, characterized in that: The back sides of two adjacent T-shaped sections (31) are connected by a hinge, and a snap frame (32) is installed between the two adjacent T-shaped sections (31). The snap frame (32) is fixedly connected to the two adjacent T-shaped sections (31) via a pin.

4. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 1, characterized in that: Hand wheels (521) are fixedly mounted on both ends of the bidirectional threaded rod (52).

5. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 1, characterized in that: The detection cylinder (54) is semicircular in shape, and a plurality of hydrogen electrochemical sensors (55) are evenly embedded on the inner side wall of the detection cylinder (54), and the plurality of hydrogen electrochemical sensors (55) are electrically connected to a warning alarm (56).

6. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 5, characterized in that: The early warning alarm (56) is electrically connected to an electric control cabinet (57), and the electric control cabinet (57) is fixedly mounted on the base plate (1).

7. The safety detection device for hydrogen-mixed natural gas transmission pipeline according to claim 1, characterized in that: The adjustment control unit (6) includes a worm wheel (61), which is fixedly sleeved on the support shaft (41). A worm (62) is rotatably mounted on one side of the worm wheel (61) on the lifting seat (4). The worm (62) is meshed with the worm wheel (61), and knobs (63) are fixedly mounted on both ends of the worm (62).

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