Granary gas automatic detection device

Abstract

The utility model relates to the technical field of granary gas detection, in particular to an automatic granary gas detection device which comprises a plurality of gas inlet sampling pipes, one end of each gas inlet sampling pipe is connected with a gas extracting pump, and an outlet of each gas extracting pump is connected with a gas detector through a first gas conveying pipe. An outlet of the gas detector is connected with a gas treatment tank through a second gas conveying pipe, and an outlet of the gas treatment tank is connected with a discharge pipe; a plurality of air inlet sampling pipes are arranged in the granary, each air inlet sampling pipe is connected with an air gathering pipe through an air control valve, and an outlet of each air gathering pipe is connected with an inlet of the air extracting pump, so that the air extracting pump can be independently communicated with each air inlet sampling pipe. And then the gas is conveyed to the gas detector, so that automatic detection of gas at multiple positions in the granary is realized, and the gas detection result is closer to the real situation in the granary and is more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of granary gas detection, and in particular to an automatic granary gas detection device. Background Art

[0002] Gas detection in granaries is extremely important, mainly to ensure the storage safety and quality of grain, including detection of oxygen content, phosphine and combustible gases. For example, detecting oxygen content can prevent excessive oxidation of grain, reduce grain deterioration and nutritional loss. If the oxygen content is too high, it may accelerate the respiration of grain, causing grain heating and mildew. For example, detecting carbon dioxide content helps to understand the respiration of grain and the stability of the storage environment. High concentrations of carbon dioxide can inhibit the growth of grain pests and microorganisms, thereby extending the storage life of grain. For example, detecting harmful gases such as carbon monoxide and phosphine can avoid harm to grain and staff. Phosphine is a commonly used fumigant. If it leaks, it may cause poisoning risks to the human body. Detecting combustible gases such as methane can prevent fire and explosion accidents. During the grain storage process, a small amount of combustible gas may be produced due to the natural respiration of grain and microbial activity. If these gases accumulate to a certain concentration, they may cause an explosion when encountering a fire source.

[0003] In the process of granary gas detection, due to the large space of the granary, it is not easy to conduct convenient detection in each area. If the gas concentration distribution in different areas of the granary is inconsistent, the detection results will deviate from the actual situation. This project aims to develop an automatic granary gas detection device to solve the above problems. Utility Model Content

[0004] In view of at least one of the above technical problems, the present application provides a granary gas automatic detection device, which adopts the following technical solution to solve the problem that it is difficult to conduct convenient detection of various areas due to the large space of the granary.

[0005] According to one aspect of the present application, a granary gas automatic detection device is provided, comprising: a plurality of air intake sampling tubes, one end of each air intake sampling tube is connected to an air pump, the outlet of the air pump is connected to a gas detector through a first air delivery pipe, the outlet of the gas detector is connected to a gas processing tank through a second air delivery pipe, and the outlet of the gas processing tank is connected to a discharge pipe;

[0006] Each air intake sampling tube is connected to a gas gathering tube through a gas control valve, and the outlet of the gas gathering tube is connected to the inlet of the air suction pump, so that the air suction pump can be connected to each air intake sampling tube separately.

[0007] The utility model is further configured such that one end of each air intake sampling tube away from the gas control valve extends to various places in the granary.

[0008] The utility model is further configured such that the intake sampling pipe, the air extraction pump, the gas detector, the gas treatment tank, and the gas control valve are all fixedly installed inside the housing.

[0009] The utility model is further configured such that mounting seats are respectively arranged at the four corners on one side of the housing, and through holes for passing screws are arranged in the middle of the mounting seats.

[0010] The utility model is further configured to further include: a controller, the controller includes a control unit and a display unit, wherein the control unit is signal-connected to the gas control valve, the air extraction pump, and the gas detector, and is used to control the operation of the gas control valve, the air extraction pump, and the gas detector.

[0011] The utility model is further configured such that the gas control valve is a two-way three-way valve, and the outlet of the gas treatment tank is connected to one of the interfaces of the gas control valve through a discharge pipe, so that the gas discharged from the gas treatment tank flows back to the intake sampling pipe.

[0012] The utility model is further configured such that gas filters are arranged inside the gas treatment tank, there are multiple gas filters, and the multiple gas filters are arranged in series.

[0013] The utility model is further configured such that the gas filter is cylindrical;

[0014] Multiple cavities and gas filters corresponding to the number of cavities are arranged inside the gas treatment tank, the gas filters are respectively installed in the multiple cavities, and the gas circulates alternately inside and outside the multiple gas filters through the multiple cavities.

[0015] The utility model is further configured such that the gas filters are all vertically installed inside the gas treatment tank, and the gas filters are detachably connected to the gas treatment tank.

[0016] The utility model is further configured such that the gas filter at least includes activated carbon, molecular sieve, and composite adsorbent.

[0017] The utility model has the following technical effects:

[0018] The utility model can automatically extract gases from multiple locations inside the granary through the air extraction pump and the intake sampling pipe, and then transport them to the gas detector, realizing the automatic detection of gases at multiple locations inside the granary, making the gas detection result closer to the actual situation inside the granary and more accurate. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is the perspective view of the present application;

[0021] Figure 2 is the perspective view of the internal structure in the present application;

[0022] Figure 3 is another perspective view of the internal structure in the present application;

[0023] Figure 4 is the front view of the gas treatment tank in the present application;

[0024] Figure 5 is the sectional view of the gas treatment tank in the present application.

[0025] Reference numerals:

[0026] 1, housing; 2, intake sampling pipe; 3, mounting seat; 4, controller; 5, gas control valve; 6, gas converging pipe; 7, air extraction pump; 8, first gas pipeline; 9, gas detector; 10, second gas pipeline; 11, gas treatment tank; 12, gas filter; 13, discharge pipe. Detailed implementation manners

[0027] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below. Embodiment 1

[0028] In this embodiment of the present utility model, as Figures 1-5As shown in the figure, a device for automatically detecting the gas in a granary is provided, including: a plurality of intake sampling pipes 2, and one end of each intake sampling pipe 2 is connected with an air extraction pump 7. The outlet of the air extraction pump 7 is connected with a gas detector 9 through a first gas pipeline 8. The outlet of the gas detector 9 is connected with a gas treatment tank 11 through a second gas pipeline 10, and the outlet of the gas treatment tank 11 is connected with a discharge pipe 13. The air extraction pump 7 extracts the gas in the granary through the intake sampling pipe 2 and then transports it to the gas detector 9, enabling the automatic detection of the gas in the granary. The gas detector 9 includes an oxygen detector, a carbon dioxide detector, a phosphine detector, a combustible gas detector, and a multi-parameter gas detector. Among them, the phosphine detector can specifically be an electrochemical sensor and a semiconductor sensor. The multi-parameter gas detector can detect multiple gases simultaneously, such as oxygen, carbon dioxide, phosphine, and combustible gas, etc. The corresponding detector can be selected based on economic factors and actual needs. Since one end of each intake sampling pipe 2 far from the gas control valve 5 extends to various parts inside the granary, the gas in various parts of the granary can be conveniently detected, making the detection result closer to the actual situation inside the granary and more accurate.

[0029] In order to enable the air extraction pump 7 to efficiently extract gas, each intake sampling pipe 2 is respectively connected with a gas converging pipe 6 through a gas control valve 5, and the outlets of the gas converging pipes 6 are all connected with the inlet of the air extraction pump 7, so that the air extraction pump 7 can be separately communicated with each intake sampling pipe 2. The air extraction pump 7 can not only separately suck each intake sampling pipe 2, but also simultaneously inhale through the gas converging pipe 6 to conduct a collective evaluation of the multi-point situation in the granary.

[0030] In order to make the overall volume of the device smaller and facilitate transportation and handling, the intake sampling pipe 2, the air extraction pump 7, the gas detector 9, the gas treatment tank 11, and the gas control valve 5 are all fixedly installed in the housing 1, and the housing 1 can also protect the components inside it.

[0031] In order to facilitate the overall installation of the device, mounting seats 3 are respectively arranged at the four corners on one side of the housing 1, and through holes for passing screws are arranged in the middle of the mounting seats 3. The housing 1 is attached to the outer wall of the granary, and then the mounting seats 3 are fixed to the outer wall of the granary through screws, and the installation and fixation of the device can be completed. Embodiment 2

[0032] The second embodiment is a further improvement based on the first embodiment. To make the overall device easy to control and intelligent, the device further includes: a controller 4, which includes a control unit and a display unit. The control unit is signal-connected to a gas control valve 5, an air extraction pump 7, and a gas detector 9, and is used to control the operation of the gas control valve 5, the air extraction pump 7, and the gas detector 9. The control unit includes a PLC. The control unit is connected to the gas control valve 5 through an electrical signal line. The control unit can send instructions to the gas control valve 5 to control the opening and closing of the gas control valve 5. Here, the connection uses digital signals or analog signals for communication to ensure the accuracy and reliability of control. The control unit is also connected to the air extraction pump 7 through an electrical signal line. The control unit can control the start and stop of the air extraction pump 7, as well as adjust the air extraction speed and start / stop of the air extraction pump 7. For example, during gas detection, the control unit can start the air extraction pump 7 to extract the gas in the granary into the gas detector 9 for analysis. When the detection is completed, the control unit can stop the air extraction pump 7 to save energy. The control unit is connected to the gas detector 9 through a data transmission line. The gas detector 9 converts the detected gas concentration and other information into electrical signals and transmits them to the control unit. After receiving these signals, the control unit performs data processing and analysis to determine whether the gas condition in the granary is safe.

[0033] The display unit is connected to the control unit through a data transmission line. The control unit transmits the processed gas detection results, system status, and other information to the display unit. The display unit presents this information to the user in an intuitive manner. For example, the display unit can display the concentration values of various gases in the granary, the working status of the air extraction pump 7, the opening degree of the gas control valve 5, etc. The display unit can also receive the operation instructions from the user and transmit these instructions to the control unit to achieve remote control and operation of the system.

[0034] The control unit, the display unit, and the gas control valve 5, the air extraction pump 7, and the gas detector 9 are interconnected through electrical signal lines and data transmission lines to form a complete granary gas detection and control system. This connection relationship enables the system to monitor the gas condition in the granary in real time, automatically control the emission and extraction of gas, and ensure the storage safety of grain. Embodiment Three

[0035] The third embodiment is a further improvement on the first embodiment. In order to accelerate and promote the uniform distribution of gas inside the granary, the gas control valve 5 is a two-position three-way valve. The outlet of the gas treatment tank 11 is connected to one of the interfaces of the gas control valve 5 through the discharge pipe 13, so that the gas discharged from the gas treatment tank 11 can flow back to the air intake sampling tube 2. When the gas detector 9 detects that the concentration of harmful gas in one place of the granary is higher and the concentration of harmful gas in another place is lower, the gas discharged from the gas treatment tank 11 can be returned to the air intake sampling tube 2, so that the gas with a higher concentration of harmful gas in one place can be filtered and then flow back to another place in the granary, which can not only process the gas, but also accelerate the uniform distribution of gas in the granary.

[0036] In order to improve the gas processing effect, a gas filter 12 is arranged inside the gas processing tank 11. There are multiple gas filters 12, and the multiple gas filters 12 are arranged in series. The multiple gas filters 12 are connected to form a continuous multi-channel filtering effect.

[0037] In order to realize the connection of multiple gas filters 12, Figure 5 As shown in the figure, the gas filter 12 is cylindrical; a plurality of cavities and a corresponding number of gas filters 12 are arranged inside the gas processing tank 11, and the gas filters 12 are respectively installed in the plurality of cavities, so that the gas can flow alternately inside and outside the plurality of gas filters 12 through the plurality of cavities.

[0038] In order to facilitate the replacement of the gas filter 12, Figure 5 As shown in the figure, the gas filter 12 is vertically installed in the gas processing tank 11, and the gas filter 12 and the gas processing tank 11 are detachably connected. The gas filter 12 and the gas processing tank 11 can be connected by threads. The operator can easily disassemble and replace the gas filter by screwing the gas filter 12.

[0039] The utility model is further configured that the gas filter 12 at least includes activated carbon, molecular sieve and composite adsorbent, and the activated carbon, molecular sieve and composite adsorbent are all capable of filtering harmful gases.

[0040] Working principle: One end of each air intake sampling tube 2 away from the gas control valve 5 extends to various places in the granary. The air pump 7 can conveniently extract the gas from various places in the granary through the air intake sampling tube 2, and then transport it to the gas detector 9 to realize automatic detection of the gas in the granary. Since the gas detection is performed at multiple places in the granary, the detection result is closer to the actual situation in the granary and more accurate.

[0041] When the gas detector 9 detects that the concentration of a certain gas is relatively high at one location in the granary while it is relatively low at another location, the gas discharged after being processed by the gas treatment tank 11 can be refluxed to the intake sampling pipe 2, so that the gas with a relatively high concentration at one location can be filtered and then refluxed to another location in the granary. This can not only filter and process the gas, but also accelerate the uniform distribution of the gas in the granary and balance the gas environment inside the granary.

[0042] The above is only a preferred embodiment of the present application and does not impose any formal restrictions on the present application. Any person skilled in the art can, without departing from the scope of the technical solution of the present application, make many possible changes and modifications to the technical solution of the present application by using the methods and technical content disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, all equivalent changes made in accordance with the shape, structure and principle of the present application without departing from the content of the technical solution of the present application shall be covered by the protection scope of the present application.

Claims

1. An automatic gas detection device for a granary, characterized in that, Including: A plurality of intake sampling pipes (2), and one end of each intake sampling pipe (2) is connected with an air extraction pump (7). The outlet of the air extraction pump (7) is connected with a gas detector (9) through a first gas pipeline (8). The outlet of the gas detector (9) is connected with a gas treatment tank (11) through a second gas pipeline (10). The outlet of the gas treatment tank (11) is connected with a discharge pipe (13). Each of the intake sampling pipes (2) is respectively connected with a gas converging pipe (6) through a gas control valve (5). The outlets of the gas converging pipes (6) are all connected with the inlets of the air extraction pumps (7), so that the air extraction pumps (7) can be individually communicated with each intake sampling pipe (2).

2. The automatic grain depot gas detection device according to claim 1, characterized in that: One end of each intake sampling pipe (2) away from the gas control valve (5) extends to various parts inside the granary.

3. The automatic grain depot gas detection device according to claim 1, characterized in that: The intake sampling pipes (2), the air extraction pumps (7), the gas detectors (9), the gas treatment tanks (11) and the gas control valves (5) are all fixedly installed inside a housing (1).

4. An automatic gas detection device for a granary according to claim 3, characterized in that: Mounting seats (3) are respectively arranged at four corners on one side of the housing (1). Through holes for passing screws are arranged in the middle of the mounting seats (3).

5. The automatic grain silo gas detection device according to claim 1, characterized in that: Also including: A controller (4), the controller (4) includes a control unit and a display unit, wherein the control unit is signal-connected to the gas control valve (5), the air extraction pump (7) and the gas detector (9).

6. The automatic gas detection device for a granary according to claim 1, characterized in that: The gas control valve (5) is a two-position three-way valve. The outlet of the gas treatment tank (11) is connected to one of the interfaces of the gas control valve (5) through a discharge pipe (13), so that the gas discharged from the gas treatment tank (11) can flow back to the intake sampling pipe (2).

7. The automatic grain depot gas detection device according to claim 1, characterized in that: A gas filter (12) is arranged inside the gas treatment tank (11). There are a plurality of gas filters (12), and the plurality of gas filters (12) are arranged in series.

8. An automatic grain bin gas detection device according to claim 7, characterized in that: The gas filter (12) is cylindrical. Multiple cavities are arranged inside the gas treatment tank (11) and gas filters (12) corresponding to the number of the cavities. The gas filters (12) are respectively installed in the multiple cavities. The gas flows alternately inside and outside the multiple gas filters (12) through the multiple cavities.

9. The automatic grain bin gas detection device according to claim 8, characterized in that: The gas filters (12) are all vertically installed inside the gas treatment tank (11), and the gas filters (12) are detachably connected to the gas treatment tank (11).

10. An automatic grain bin gas detection device according to claim 9, characterized in that: The gas filter (12) at least includes activated carbon, molecular sieve and composite adsorbent.

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