Comprehensive gas parameter tester for borehole collecting pipe

Abstract

The utility model discloses a drill hole collecting pipe gas comprehensive parameter tester, which comprises a shell assembly, a connecting rod, a mounting bin, a butterfly lock catch and an access type pipeline, the mounting bin comprises a housing and a mounting plate, the shell assembly is connected with the top of the housing through the connecting rod, the bottom of the housing is connected with the mounting plate through a screw, and the butterfly lock catch is connected with the connecting type pipeline. A notch is formed in the pipe wall of the access type pipeline, a fixing seat is welded to the notch, the front side wall of the mounting plate is connected with the front side wall of the fixing seat through a butterfly lock catch, and the rear side wall of the mounting plate is connected with the rear side wall of the fixing seat through a butterfly lock catch. The utility model provides a gas comprehensive parameter tester for a borehole collecting pipe, which is simple in structure and convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] This utility model relates to a comprehensive gas parameter measuring instrument for borehole manifolds, belonging to the field of coal mine safety monitoring technology. Background Technology

[0002] Currently, coal mining processes generate large amounts of methane gas, necessitating gas drainage. During drainage, the safe transport of methane through pipelines is a crucial aspect, and the composition and parameters of the gas within the pipeline serve as a standard for monitoring pipeline safety. With the continuous development of information technology, comprehensive methane parameter analyzers have begun to be used in detection, replacing traditional manual measurement methods. However, existing comprehensive methane parameter analyzers are complex in structure and cumbersome to install and maintain, especially in the harsh underground environment, causing significant inconvenience to underground workers. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a borehole manifold gas comprehensive parameter measuring instrument with simple structure, easy disassembly and assembly, and convenient maintenance.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A borehole manifold gas comprehensive parameter measuring instrument includes a housing assembly, a connecting rod, a mounting chamber, a butterfly lock, and an access pipe. The mounting chamber includes a cover and a mounting plate. The housing assembly is connected to the top of the cover via the connecting rod, and the bottom of the cover is connected to the mounting plate via screws. The access pipe has a slot on its wall, and a fixing seat is welded to the slot. The front side wall of the mounting plate is connected to the front side wall of the fixing seat via the butterfly lock, and the rear side wall of the mounting plate is connected to the rear side wall of the fixing seat via the butterfly lock.

[0006] Furthermore, the housing assembly includes a cover plate, a housing, and a circuit board. The cover plate is connected to the housing by screws, and the circuit board is fixed inside the housing by studs.

[0007] Furthermore, an aviation socket is provided on the right side wall of the housing.

[0008] Furthermore, a handle is provided on the upper side wall of the housing.

[0009] Furthermore, the mounting plate is equipped with an ultrasonic probe, a temperature probe, a pressure probe, and a laser methane probe.

[0010] Furthermore, a reflector is provided at the bottom of the mounting plate, and the reflector is located inside the cavity of the access pipe.

[0011] Furthermore, the upper end of the connecting rod is fixed inside the housing by tightening a nut, the lower end of the connecting rod is inserted into the top of the cover, the lower end of the connecting rod is provided with a groove, a retaining spring is engaged in the groove, and an anti-rotation plate is provided between the retaining spring and the inner wall of the top of the cover.

[0012] By adopting the above technical solution, this utility model uniformly installs all probes in the installation chamber. The installation chamber and the access pipe are connected by a quick-opening structure, eliminating the need for disassembly and assembly using screwdrivers or other tools, making installation and maintenance extremely convenient. Furthermore, the installation chamber is detachably connected to the outer casing via a connecting rod, facilitating the assembly and disassembly of the connecting rod and the outer casing. Attached Figure Description

[0013] Figure 1 This is a front view of the borehole manifold gas comprehensive parameter measuring instrument of this utility model;

[0014] Figure 2 This is a schematic diagram of the outer shell assembly of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation compartment of this utility model;

[0016] Figure 4 This is a schematic diagram of the mounting plate of this utility model;

[0017] Figure 5 This is a schematic diagram of the installation structure of the connecting rod of this utility model. Detailed Implementation

[0018] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] like Figure 1 As shown in the figure, this embodiment provides a borehole manifold gas comprehensive parameter measuring instrument, which includes a housing assembly 1, a connecting rod 2, a mounting chamber 3, and an access pipe 5. The housing assembly 1 is connected to the mounting chamber 3 through the connecting rod 2. The mounting chamber 3 is fixed to the access pipe 5 through a quick-opening structure. All sensor probes are installed inside the mounting chamber 3. The quick-opening structure makes it easy for staff to open the mounting chamber 3 for maintenance.

[0020] like Figure 1 , 2As shown, the housing assembly 1 of this embodiment includes a cover plate 11, a housing 12, and a circuit board 13. The cover plate 11 is connected to the housing 12 by screws, and the circuit board 13 is fixed inside the housing 12 by studs 14. An aviation socket 7 is provided on the right side wall of the housing 12. The aviation socket 7 is electrically connected to the circuit board 13 via wires. An aviation plug can be plugged into the aviation socket 7 for power supply and signal transmission. A handle 8 is provided on the upper side wall of the housing 12 for easy carrying by personnel. A transparent observation window 9 is also installed on the cover plate 11 for personnel to observe the display screen on the circuit board 13.

[0021] like Figure 3 , 4 As shown, the installation chamber 3 in this embodiment includes a cover 31 and a mounting plate 32. The outer shell assembly 1 is connected to the top of the cover 31 via a connecting rod 2, and the bottom of the cover 31 is connected to the mounting plate 32 via screws. A slot 51 is provided on the wall of the access pipe 5, and a fixing seat 6 is welded to the slot 51. The front side wall of the mounting plate 32 is connected to the front side wall of the fixing seat 6 via a butterfly latch 4, and the rear side wall of the mounting plate 32 is connected to the rear side wall of the fixing seat 6 via a butterfly latch 4. The mounting plate 32 is provided with threaded holes 321, and the ultrasonic probe 33, temperature probe 34, pressure probe 35, and laser methane probe 36 are all screwed onto the mounting plate 32. The ultrasonic probe 33, temperature probe 34, pressure probe 35, and laser methane probe 36 are all electrically connected to the circuit board 13 via wires. A reflector plate 37 is provided at the bottom of the mounting plate 32, and the reflector plate 37 is located in the inner cavity of the access pipe 5. The housing 31 is detachably connected to the mounting plate 32 by screws, facilitating the installation and maintenance of the probe inside the housing 31. The front and rear side walls of the mounting plate 32 are connected to the fixing base 6 via butterfly latches 4. This quick-opening structure allows the mounting plate 32 to be removed from the fixing base 6 simply by opening the butterfly latches, and the mounting plate 32 to the fixing base 6 is securely fixed by tightening the butterfly latches. No screwdrivers or other tools are required for disassembly and assembly, making installation and maintenance extremely convenient.

[0022] The instrument measures methane concentration using the principle of methane gas absorption of infrared light. It employs the working principle of tunable laser absorption spectroscopy and harmonic detection. Methane gas in the test environment enters the absorption chamber of the laser methane probe 36 by diffusion. The laser emits laser light at a fixed frequency. The laser light passes through the chamber and reaches the photodiode, which converts the optical signal into an electrical signal. After filtering, amplification, and compensation for parameters such as temperature, the concentration of methane gas in the chamber is calculated.

[0023] The temperature probe 34 uses a PT100 resistor, whose resistance is directly proportional to the temperature change. The relationship between the resistance of the PT100 and the temperature change is as follows: when the temperature of the PT100 is 0℃, its resistance is 100 ohms, and when the temperature is 100℃, its resistance is approximately 138.5 ohms.

[0024] The voltage of the pressure probe 35 is proportional to the change in pressure. When the sensor head is subjected to pressure, the diaphragm inside the pressure probe 35 is deformed by the pressure, which causes the resistance wire on the diaphragm to stretch, causing the resistance value of the resistance wire to change, thereby outputting different voltages.

[0025] The ultrasonic probe 33 is used to monitor gas flow rate. Two ultrasonic sensor heads are installed. The ultrasonic signal is reflected by the reflector 37. The wind speed is measured by measuring the time difference between the ultrasonic waves emitted before and after the waves in the air using the Doppler effect of ultrasonic waves.

[0026] like Figure 5 As shown, in this embodiment, the upper end of the connecting rod 2 is fixed inside the housing 12 by tightening the nut 21. The connecting rod 2 can be disassembled and installed from the housing 12 by tightening and loosening the nut 21. The lower end of the connecting rod 2 is inserted into the top of the cover 31. A groove is provided at the lower end of the connecting rod 2, and a retaining spring 22 is engaged in the groove. An anti-rotation piece 23 is provided between the retaining spring 22 and the inner top wall of the cover 31. The retaining spring 22 fixes the lower end of the connecting rod 2 inside the cover 31. Furthermore, the anti-rotation piece 23 is added between the retaining spring 22 and the inner top wall of the cover 31 to prevent the lower end of the connecting rod 2 from loosening.

[0027] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A comprehensive gas parameter measuring instrument for borehole manifolds, characterized in that: It includes an outer casing assembly (1), a connecting rod (2), an installation compartment (3), a butterfly latch (4), and an access pipe (5). The installation compartment (3) includes a cover (31) and an installation plate (32). The outer casing assembly (1) is connected to the top of the cover (31) via the connecting rod (2). The bottom of the cover (31) is connected to the installation plate (32) via screws. The access pipe (5) has a slot (51) on its wall. A fixing seat (6) is welded onto the slot (51). The front side wall of the installation plate (32) is connected to the front side wall of the fixing seat (6) via the butterfly latch (4). The rear side wall of the installation plate (32) is connected to the rear side wall of the fixing seat (6) via the butterfly latch (4).

2. The borehole manifold gas comprehensive parameter measuring instrument according to claim 1, characterized in that: The outer casing assembly (1) includes a cover plate (11), a housing (12) and a circuit board (13). The cover plate (11) is connected to the housing (12) by screws, and the circuit board (13) is fixed inside the housing (12) by studs (14).

3. The borehole manifold gas comprehensive parameter measuring instrument according to claim 2, characterized in that: An aviation socket (7) is provided on the right side wall of the housing (12).

4. The borehole manifold gas comprehensive parameter measuring instrument according to claim 2, characterized in that: A handle (8) is provided on the upper side wall of the housing (12).

5. The borehole manifold gas comprehensive parameter measuring instrument according to claim 1, characterized in that: The mounting plate (32) is equipped with an ultrasonic probe (33), a temperature probe (34), a pressure probe (35), and a laser methane probe (36).

6. The borehole manifold gas comprehensive parameter measuring instrument according to claim 1, characterized in that: A reflector plate (37) is provided at the bottom of the mounting plate (32), and the reflector plate (37) is located in the inner cavity of the access pipe (5).

7. The borehole manifold gas comprehensive parameter measuring instrument according to claim 2, characterized in that: The upper end of the connecting rod (2) is fixed inside the housing (12) by tightening the nut (21). The lower end of the connecting rod (2) is inserted into the top of the cover (31). The lower end of the connecting rod (2) is provided with a groove. A retaining spring (22) is engaged in the groove. An anti-rotation plate (23) is provided between the retaining spring (22) and the inner wall of the top of the cover (31).

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