Coal gas sampling equipment

Abstract

The utility model discloses coal gas sampling equipment which comprises a box body, an open groove is formed in the front face of the box body, the open groove is sealed through a cover plate, an input mechanism used for inputting coal gas is installed at the top end of the box body, and the input mechanism is communicated with an atomization dust falling bin through a gas conveying pipe. The atomization dust settling bin penetrates through the box body through an output pipe and extends out of the box body, and pipeline valves are installed at the two ends of the gas conveying pipe; compared with traditional sampling equipment, the gas sampling device is in a sealed state in the sampling process, and meanwhile, the purity of sampled gas is ensured through a double dust removal mode of a filter bag and atomization, so that the accuracy of subsequent detection is facilitated; when sampled coal gas needs to be temporarily stored or needs to be moved to other places for detection, the equipment can be used for temporarily storing the coal gas in the gas conveying pipe by sealing the two pipeline valves, so that a sealed storage function is realized.

Description

Technical Field

[0001] The utility model belongs to the field of gas detection, and in particular relates to a gas sampling device. Background Art

[0002] Coal gas is a gas containing combustible components that is processed from coal as raw material.

[0003] During the sales and production process of coal gas, it must undergo relevant tests. Common test items include: high and low calorific value, composition, density, relative density, Wobbe index, total sulfur, hydrogen sulfide, carbon dioxide, explosion limit, combustion characteristic index, Wobbe number, combustion potential, impurities, tar and dust, hydrogen sulfide, ammonia, naphthalene, oxygen content, carbon monoxide content, sulfur dioxide, carbonyl sulfide, carbon disulfide, mercaptan, thiophenol, sulfide, thiophene, component, density, motor octane number, diene mole fraction, hydrogen sulfide, copper corrosion, total sulfur content, evaporation residue, component, vapor pressure, coalbed methane resource evaluation, etc.

[0004] Before testing the gas, it is necessary to take samples and collect them. In order to ensure the purity of the gas, the traditional sampling work uses filter bags to filter out impurities in the gas.

[0005] A Chinese patent with authorization announcement number CN103432825B discloses a special filter bag for blast furnace gas, including a filter bag body and a mounting ring. The mounting ring is provided at the bag opening of the filter bag body. The filter bag body includes an inner layer of polytetrafluoroethylene needle-punched felt, a middle layer of glass fiber woven cloth and an outer layer of polyphenylene sulfide fiber. It has the advantages of high wear resistance, better filtering effect, and long service life.

[0006] The above technical solution has the following defects:

[0007] Although the use of filter bags in the sampling stage has a good filtering effect, for coal gas, it is easy to cause the risk of coal dust and gas leakage. Therefore, this process should be carried out inside a sealed chamber. At the same time, it should have the functions of real-time sampling detection and temporary storage of samples to adapt to different detection operation requirements. Utility Model Content

[0008] In response to the above defects, the utility model provides a gas sampling device, including a box body, an open groove is provided on the front side of the box body, and the open groove is sealed by a cover plate. An input mechanism for gas input is installed on the top of the box body, and the input mechanism is connected to an atomization dust reduction bin through a gas pipe. The atomization dust reduction bin passes through the box body and extends to the outside through an output pipe, and pipeline valves are installed at both ends of the gas pipe.

[0009] Furthermore, the input mechanism includes a fixed plate and a sealing plate hinged by hinges, the fixed plate is fixed to the top of the box body, and a circular groove is opened in the middle of the fixed plate, a connected filter cartridge is fixed to the bottom end of the circular groove, the output end of the filter cartridge is connected to the gas pipe, and the sealing plate is threadedly connected with a gas injection pipe and a gas valve for gas input through a threaded groove.

[0010] Through the above technical solution, the coal gas input during the sampling stage enters the interior of the filter cartridge to complete the dust treatment process, thereby preventing subsequent clogging of the detection interface.

[0011] Furthermore, the gaps opened between the fixing plate and the sealing plate at the adjacent ends are locked by bolts.

[0012] Through the above technical solution, the disassembly and assembly between the two is more convenient, and at the same time, good sealing performance is achieved.

[0013] Furthermore, the inner wall of the box body supports the atomizing dust suppression bin through a fixed support plate, a pipe for water delivery and an atomizing nozzle installed at the pipe are installed inside the atomizing dust suppression bin, and a water storage tank is provided at the bottom.

[0014] Through the above technical solution, the tiny particles that are not completely purified by the filter cartridge are processed again through atomization precipitation.

[0015] Furthermore, a rubber sealing ring is installed at each connecting end of the gas delivery pipe and the output pipe.

[0016] The above technical solution is used to increase the sealing performance of the pipeline connection end.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. Compared with traditional sampling equipment, it is in a sealed state during the sampling process, and the purity of the sampled gas is ensured by the dual dust removal method of filter bag and atomization, which is convenient for the accuracy of subsequent detection;

[0019] 2. When the sampled gas needs to be temporarily stored or needs to be moved elsewhere for testing, this equipment can seal the two pipeline valves to temporarily store the gas inside the gas pipeline, thereby realizing the function of sealed storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the input mechanism in the utility model.

[0022] In the figure: 1. Box body; 2. Input mechanism; 21. Fixed plate; 22. Sealing plate; 23. Filter cartridge; 24. Threaded groove; 3. Open groove; 4. Air injection pipe; 5. Air valve; 6. Air pipe; 7. Atomization dust suppression chamber; 8. Support plate; 9. Sealing ring; 10. Output pipe; 11. Pipeline valve. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide embodiments of the device. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example

[0026] like Figure 1-2 As shown, this embodiment provides a gas sampling device, including a box body 1, an open slot 3 is opened on the front of the box body 1, and the open slot 3 is sealed by a cover plate. An input mechanism 2 for gas input is installed on the top of the box body 1, and the input mechanism 2 is connected to an atomizing dust suppression bin 7 through a gas pipeline 6. The inner wall of the box body 1 supports the atomizing dust suppression bin 7 through a fixed support plate 8. A pipeline for water delivery and an atomizing nozzle installed at the pipeline are installed inside the atomizing dust suppression bin 7, and a water storage tank is provided at the bottom. The atomizing dust suppression bin 7 penetrates the box body 1 through an output pipe 10 and extends to the outside thereof, and pipeline valves 11 are installed at both ends of the gas pipeline 6.

[0027] The inner wall of the box body 1 supports the atomizing dust reduction bin 7 through a fixed support plate 8. A pipe for water supply and an atomizing nozzle installed on the pipe are installed inside the atomizing dust reduction bin 7. A water storage tank is provided at the bottom. Through the injection of external water source (a small water pump is required to pressurize the atomizing nozzle to ensure the atomization treatment of the water source), the sampled gas filtered by the filter cartridge 23 is filtered again.

[0028] The present embodiment provides a gas sampling device. When sampling is required, the gas is injected from the gas pipe 6. First, the first dust removal operation is performed through the input mechanism 2, and then the second dust removal operation is performed through the atomization dust reduction chamber 7. Finally, the gas is discharged to the detection equipment through the output pipe 10 for gas detection, so as to ensure the purity of the gas. When it is necessary to temporarily store the sampled gas, it is only necessary to open the cover and close the two pipeline valves 11. At this time, the gas in the gas pipe 6 has completed the temporary storage process, and the equipment can be moved.

[0029] The input mechanism 2 includes a fixed plate 21 and a sealing plate 22 hingedly connected by hinges. The gaps between the fixed plate 21 and the sealing plate 22 are locked by bolts, so that the fixed plate 21 and the sealing plate 22 can be disassembled and assembled, which is convenient for cleaning or replacing the internal filter cartridge 23. The fixed plate 21 is fixed to the top of the box body 1, and a circular groove is opened in the middle of the fixed plate 21. It should be noted that a circular sealing ring can be added to the circular groove to increase the sealing of the connecting end. A connected filter cartridge 23 is fixed at the bottom end of the circular groove. The filter cartridge 23 is used to filter the incoming coal gas. The output end of the filter cartridge 23 is connected to the gas transmission pipe 6. The sealing plate 22 is threadedly connected with the gas injection pipe 4 and the gas valve 5 for coal gas input through the threaded groove 24.

[0030] The connecting ends of the gas delivery pipe 6 and the output pipe 10 are each installed with a rubber sealing ring 9 to increase the sealing performance of the connecting end.

[0031] It should be noted that the structure described in the utility model can be implemented in a variety of different forms and is not limited to the described embodiments. Any equivalent transformations made by ordinary technicians in this field using the contents of the utility model specification and drawings, or directly or indirectly applied to other related technical fields, such as the loading and unloading of other items, are included in the protection scope of the utility model.

Claims

1. A gas sampling device, comprising a box, characterized in that: An open groove is provided on the front of the box, and the open groove is sealed by a cover plate. An input mechanism for gas input is installed on the top of the box. The input mechanism is connected to an atomization dust reduction bin through a gas pipe. The atomization dust reduction bin penetrates the box through an output pipe and extends to the outside. Pipe valves are installed at both ends of the gas pipe.

2. A gas sampling device as claimed in claim 1, characterized in that: The input mechanism includes a fixed plate and a sealing plate hinged by hinges. The fixed plate is fixed to the top of the box body, and a circular groove is opened in the middle of the fixed plate. A connected filter cartridge is fixed to the bottom end of the circular groove. The output end of the filter cartridge is connected to the gas pipe. The sealing plate is threadedly connected with a gas injection pipe and a gas valve for gas input through a threaded groove.

3. A gas sampling device as claimed in claim 2, characterized in that: The gaps opened at the adjacent ends between the fixing plate and the sealing plate are locked by bolts.

4. A gas sampling device as claimed in claim 1, characterized in that: The inner wall of the box body supports the atomizing dust suppression bin through a fixed support plate. A pipe for conveying water and an atomizing nozzle installed at the pipe are installed inside the atomizing dust suppression bin, and a water storage tank is provided at the bottom.

5. A gas sampling device as claimed in claim 1, characterized in that: The connecting ends of the gas delivery pipe and the output pipe are each installed with a rubber sealing ring.

Images