A complete set of portable device for rapidly determining gas concentration in granary

Abstract

The utility model is suitable for granary gas detection technical field provides a kind of complete set of device of portable rapid determination granary gas concentration, including atmospheric flow pump;Detection gas extraction pipeline assembly is assembled on the atmospheric flow pump;The above device opens gas block valve one of detection gas extraction pipeline assembly, atmospheric flow pump starts, and the gas to be detected in granary is inhaled by gas transmission pipeline. When gas passes through inclined filter plate, dust particles are filtered, to prevent blockage, and at the same time, the fan can clean the inclined filter plate through the particle cleaning one-way air pipe to avoid dust accumulation. The filtered gas continues to transmit, and when it is necessary to clean the particles, open the gas block valve three, and the dust enters the dust collection cloth bag through the particle collection pipeline, facilitating subsequent processing. In the gas detection stage, the gas enters the gas detection assembly and reaches the gas detector for detection through the output pipeline. At this time, the shunt one-way air pipe assists in gas outlet, reducing airflow into the gas detector.

Description

Technical Field

[0001] This utility model belongs to the field of grain warehouse gas detection, and in particular relates to a complete set of portable devices for rapidly measuring the concentration of grain warehouse gases. Background Technology

[0002] Grain silo gas detection is the process of monitoring the composition and concentration of gases within a grain silo using gas detection equipment. During grain storage, gases such as carbon dioxide, nitrogen, and methane are produced in the silo, and harmful gases such as phosphine may also be present due to fumigation or other reasons. By detecting the concentration of these gases, safety hazards caused by gas accumulation can be prevented, ensuring the quality and safety of stored grain. Commonly used detection equipment includes gas sensors and multi-parameter gas analyzers, which can monitor the gas conditions within the grain silo in real time and issue alarms when dangerous levels are reached.

[0003] Chinese patent CN220399053U discloses a grain silo gas detection device. The device comprises a grain silo, with a hollow plate fixedly installed on the right side of the inner wall and a dust removal mechanism. The dust removal mechanism includes a motor, which is fixedly installed on the top of the inner wall of the grain silo. The output end of the motor is fixedly connected to one end of a rotating rod via a coupling, and the other end of the rotating rod extends movably into the interior of the hollow plate. An air pump and motor are intermittently activated, and air is absorbed from the grain silo through pores in the hollow plate. The air is filtered and impurities removed as it passes through a filter screen. Simultaneously, the motor causes the rotating rod to rotate a spur gear, which in turn rotates an external gear ring, causing the filter screen to move circumferentially. A scraper arm loosens residual impurities, preventing them from adhering to the filter screen and causing clogging. This also prevents the detection of impurities along with the filter screen, thus reducing test result deviations and minimizing contamination of the sensor.

[0004] However, the aforementioned grain silo gas detection device has significant drawbacks during use. While its scraper arm can loosen some dust on the filter screen, it cannot completely remove it, and residual dust particles still accumulate on the filter screen, clogging the mesh and reducing filtration efficiency. Moreover, these unremoved dust particles may enter the detection system with the airflow, increasing the risk of sensor contamination, affecting the accuracy of detection results, and even causing sensor malfunction and reducing the reliability of the device. Therefore, it is essential to design a portable, rapid device for measuring the concentration of gas in grain silos. Utility Model Content

[0005] This invention provides a portable and rapid device for measuring the concentration of gas in grain silos, aiming to solve the problems of incomplete cleaning of the scraper arm in currently used devices, which easily clogs the filter screen and contaminates the detection system, reducing the accuracy and reliability of the detection.

[0006] This invention is implemented as follows: a portable and rapid device for measuring the gas concentration in a grain silo, comprising: a high-pressure gas pump; a detection gas extraction pipeline assembly mounted on the high-pressure gas pump, the detection gas extraction pipeline assembly being used to extract the gas to be tested from the grain silo; a dust particle filter plate anti-clogging assembly mounted on the detection gas extraction pipeline assembly, the dust particle filter plate anti-clogging assembly being used to filter the gas to be tested and prevent dust blockage; a particle collection assembly mounted at the bottom of the detection gas extraction pipeline assembly, the particle collection assembly being used to collect the filtered dust; and a gas detection assembly mounted on the high-pressure gas pump, the gas detection assembly being used to detect the filtered gas to be tested.

[0007] Preferably, the gas extraction pipeline assembly includes: a gas transmission pipeline fixedly installed on one side of the large gas flow pump, a gas shut-off valve one fixedly installed at the front end of the gas transmission pipeline, an exhaust branch pipe fixedly installed at the top of the gas transmission pipeline, a gas shut-off valve two fixedly installed on the exhaust branch pipe, and a gas shut-off valve three fixedly installed at the end of the gas transmission pipeline.

[0008] Preferably, the dust particle filter plate anti-clogging assembly includes: an inclined filter plate fixedly installed inside the gas transmission pipeline, a particle cleaning one-way air pipe fixedly installed at the top of the gas transmission pipeline, the particle cleaning one-way air pipe being located on the right side of the inclined filter plate, and a fan fixedly installed at the top of the particle cleaning one-way air pipe.

[0009] Preferably, the particle collection assembly includes: a particle collection pipe fixedly installed at the bottom of the gas transmission pipeline, a control valve fixedly installed on the particle collection pipe, and a dust collection bag detachably installed at the bottom of the particle collection pipe.

[0010] Preferably, the gas detection assembly includes: an output pipe fixedly installed at the output end of the large gas flow pump, a gas detector fixedly installed at one end of the output pipe, an alarm fixedly installed at the top of the gas detector, the gas detector and the alarm being electrically connected, and a shunt unidirectional gas pipe fixedly installed at the top of the output pipe.

[0011] Preferably, the exhaust branch pipe is located on the left side of the inclined filter plate, which is used to output excess gas to be detected.

[0012] Preferably, the large airflow pump, fan, and gas detector are connected to an existing power source.

[0013] Preferably, the gas detector is provided with multiple types, and the multiple gas detectors are used to detect multiple different gases.

[0014] Compared with related technologies, the portable and rapid device for measuring the gas concentration in grain silos provided by this utility model has the following advantages:

[0015] When using this portable, rapid measurement device for grain silo gas concentration, firstly, open the gas shut-off valve one of the gas extraction pipeline assembly, start the high-speed airflow pump, and draw the gas to be tested from the grain silo through the gas transmission pipeline. As the gas passes through the inclined filter plate, dust particles are filtered to prevent clogging. Simultaneously, a fan cleans the inclined filter plate through a particle cleaning one-way air pipe to prevent dust accumulation. The filtered gas continues to be transmitted. When particle cleaning is required, open the gas shut-off valve three; dust enters the dust collection bag through the particle collection pipe for subsequent processing. In the gas detection stage, the gas enters the gas detection assembly and reaches the gas detector through the output pipeline for detection. At this time, a diversion one-way air pipe assists in the gas output, reducing the airflow entering the gas detector and preventing damage from a large airflow, ensuring detection accuracy. If harmful gas is detected, an alarm will sound. This device is compact, portable, and can quickly and accurately detect grain silo gas concentration. It effectively filters dust and is easy to clean, ensuring the normal operation of the detection equipment and improving detection efficiency and reliability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the gas extraction pipeline assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the dust particle filter plate anti-clogging component and particle collection component of this utility model;

[0019] Figure 4 This is a schematic diagram of the gas detection component structure of this utility model.

[0020] In the diagram: 1. High-speed air pump; 2. Gas extraction pipeline assembly; 3. Dust particle filter anti-clogging assembly; 4. Particle collection assembly; 5. Gas detection assembly; 201. Gas transmission pipeline; 202. Gas shut-off valve one; 203. Exhaust branch pipe; 204. Gas shut-off valve two; 205. Gas shut-off valve three; 301. Inclined filter plate; 302. Particle cleaning one-way air pipe; 303. Fan; 401. Particle collection pipeline; 402. Control valve; 403. Dust collection bag; 501. Output pipeline; 502. Gas detector; 503. Alarm; 504. Diversion one-way air pipe. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Example 1

[0024] A preferred embodiment of the portable rapid measurement device for grain silo gas concentration provided by this utility model is, for example... Figures 1 to 4 The diagram shows a portable, rapid device for determining the concentration of gas in a grain silo, comprising: a high-pressure gas pump 1; a detection gas extraction pipeline assembly 2 mounted on the high-pressure gas pump 1, used to extract the gas to be tested from the grain silo; a dust particle filter plate anti-clogging assembly 3 mounted on the detection gas extraction pipeline assembly 2, used to filter the gas to be tested and prevent dust blockage; a particle collection assembly 4 mounted at the bottom of the detection gas extraction pipeline assembly 2, used to collect the filtered dust; and a gas detection assembly 5 mounted on the high-pressure gas pump 1, used to detect the filtered gas.

[0025] In this embodiment, the gas extraction pipeline assembly 2 includes: a gas transmission pipeline 201 fixedly installed on one side of the large gas flow pump 1; a gas shut-off valve 202 fixedly installed at the front end of the gas transmission pipeline 201; an exhaust branch pipe 203 fixedly installed at the top of the gas transmission pipeline 201; a gas shut-off valve 204 fixedly installed on the exhaust branch pipe 203; and a gas shut-off valve 205 fixedly installed at the end of the gas transmission pipeline 201.

[0026] In this embodiment, the dust particle filter plate anti-clogging component 3 includes: an inclined filter plate 301 fixedly installed inside the gas transmission pipe 201, a particle cleaning one-way air pipe 302 fixedly installed on the top of the gas transmission pipe 201, the particle cleaning one-way air pipe 302 being located on the right side of the inclined filter plate 301, and a fan 303 fixedly installed at the top of the particle cleaning one-way air pipe 302.

[0027] Example 2

[0028] Based on Example 1, a preferred embodiment of the portable rapid measurement device for grain silo gas concentration provided by this utility model is, for example... Figures 1 to 4 As shown: The particle collection assembly 4 includes: a particle collection pipe 401 fixedly installed at the bottom of the gas transmission pipe 201, a control valve 402 fixedly installed on the particle collection pipe 401, and a dust collection bag 403 detachably installed at the bottom of the particle collection pipe 401.

[0029] In this embodiment, the gas detection component 5 includes: an output pipe 501 fixedly installed at the output end of the large airflow pump 1, a gas detector 502 fixedly installed at one end of the output pipe 501, an alarm 503 fixedly installed at the top of the gas detector 502, the gas detector 502 and the alarm 503 being electrically connected, and a diversion unidirectional gas pipe 504 fixedly installed at the top of the output pipe 501.

[0030] In this embodiment, the exhaust branch pipe 203 is located on the left side of the inclined filter plate 301, which is used to output excess gas to be detected.

[0031] In this embodiment, the large airflow pump 1, the fan 303, and the gas detector 502 are connected to an existing power supply.

[0032] In this embodiment, multiple types of gas detectors 502 are provided, and multiple gas detectors 502 are used to detect multiple different gases.

[0033] When using this portable rapid measurement device for grain silo gas concentration, firstly, open the gas shut-off valve 202 of the gas extraction pipeline assembly 2, start the high-flow pump 1, and draw the gas to be tested from the grain silo through the gas transmission pipeline 201. As the gas passes through the inclined filter plate 301, dust particles are filtered to prevent blockage. Simultaneously, the blower 303 cleans the inclined filter plate 301 through the particle cleaning one-way air pipe 302 to prevent dust accumulation. The filtered gas continues to be transmitted. When particle cleaning is required, open the gas shut-off valve 205, and dust enters the dust collection bag 403 through the particle collection pipe 401 for subsequent processing. During the gas detection stage, the gas enters the gas detection assembly 5 and reaches the gas detector 502 through the output pipeline 501 for detection. At this time, the diversion one-way air pipe 504 assists in the gas output, reducing the airflow entering the gas detector 502, preventing damage from large airflows, and ensuring detection accuracy. If harmful gas is detected, the alarm 503 will sound an alarm. The device is compact and portable, and can quickly and accurately detect the gas concentration in grain silos. It effectively filters dust and is easy to clean, ensuring the normal operation of the detection equipment and improving detection efficiency and reliability.

[0034] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0035] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A portable, rapid device for measuring the concentration of gases in a grain silo, characterized in that, include: Large airflow pump (1); The detection gas extraction pipeline assembly (2) is mounted on the large airflow pump (1) and is used to extract the gas to be tested from the grain silo. A dust particle filter plate anti-clogging assembly (3) is mounted on the gas extraction pipeline assembly (2). The dust particle filter plate anti-clogging assembly (3) is used to filter the gas to be tested and prevent dust from clogging it. A particle collection assembly (4) is installed at the bottom of the gas extraction pipeline assembly (2), the particle collection assembly (4) being used to collect the filtered dust; A gas detection assembly (5) is mounted on the large airflow pump (1), which is used to detect the filtered gas to be detected.

2. The portable rapid measurement device for grain silo gas concentration as described in claim 1, characterized in that, The detection gas extraction pipeline assembly (2) includes: A gas transmission pipe (201) is fixedly installed on one side of the large gas flow pump (1). A gas shut-off valve (202) is fixedly installed at the front end of the gas transmission pipe (201). An exhaust branch pipe (203) is fixedly installed at the top of the gas transmission pipe (201). A gas shut-off valve (204) is fixedly installed on the exhaust branch pipe (203). A gas shut-off valve (205) is fixedly installed at the end of the gas transmission pipe (201).

3. The portable rapid measurement device for grain silo gas concentration as described in claim 2, characterized in that, The dust particle filter plate anti-clogging assembly (3) includes: An inclined filter plate (301) is fixedly installed inside the gas transmission pipe (201). A particle cleaning one-way air pipe (302) is fixedly installed on the top of the gas transmission pipe (201). The particle cleaning one-way air pipe (302) is located on the right side of the inclined filter plate (301). A fan (303) is fixedly installed at the top of the particle cleaning one-way air pipe (302).

4. The portable rapid measurement device for grain silo gas concentration as described in claim 2, characterized in that, The particle collection component (4) includes: A particle collection pipe (401) is fixedly installed at the bottom of the gas transmission pipe (201). A control valve (402) is fixedly installed on the particle collection pipe (401). A dust collection bag (403) is detachably installed at the bottom of the particle collection pipe (401).

5. The portable rapid measurement device for grain silo gas concentration as described in claim 3, characterized in that, The gas detection component (5) includes: An output pipe (501) is fixedly installed at the output end of the large airflow pump (1). A gas detector (502) is fixedly installed at one end of the output pipe (501). An alarm (503) is fixedly installed on the top of the gas detector (502). The gas detector (502) and the alarm (503) are electrically connected. A shunt unidirectional gas pipe (504) is fixedly installed on the top of the output pipe (501).

6. The portable rapid measurement device for grain silo gas concentration as described in claim 3, characterized in that, The exhaust branch pipe (203) is located on the left side of the inclined filter plate (301), which is used to output excess gas to be detected.

7. The portable rapid measurement device for grain silo gas concentration as described in claim 5, characterized in that, The large airflow pump (1), fan (303), and gas detector (502) are connected to the existing power supply.

8. The portable rapid measurement device for grain silo gas concentration as described in claim 5, characterized in that, The gas detector (502) is provided in multiple ways, and the multiple gas detectors (502) are used to detect a variety of different gases.

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