CN213181459U - Automatic detection device for hydrogen sulfide content in biogas - Google Patents

Abstract

The utility model discloses an automatic detection device for hydrogen sulfide content in biogas, which comprises a box body, the box body is provided with a detachable box door, a detection unit and a calculation and indication unit are arranged in the box body, the detection unit comprises a sampling mechanism and a detection mechanism, the detection mechanism is arranged above the sampling mechanism, the sampling mechanism comprises an air chamber, the air chamber is connected with an air pump, the upper end surface of the air chamber is provided with a sample measuring port, the detection mechanism comprises an mechanical arm fixed in the box body, and a detection pipe bin is arranged above the mechanical arm; the counting unit comprises a camera, the camera is electrically connected with a computer, the computer is electrically connected with a display screen, the device is simple in structure and convenient to maintain and clean, the mechanical arm is used for completing material taking, detection and recovery of the detection tube, the test process is simpler and faster, the labor cost is saved, the computer converts the read numerical value into a digital signal, and the test result is more visual and accurate.

Description

Automatic detection device for hydrogen sulfide content in biogas

Technical Field

The utility model relates to a gas composition detection area, specifically are hydrogen sulfide content automatic checkout device in marsh gas.

Background

The concentration of hydrogen sulfide needs to be detected in biogas engineering so as to be beneficial to removal and utilization of hydrogen sulfide, the existing hydrogen sulfide detection instruments are divided into two types, one type is automatic instrument detection, a precise instrument adopts gas chromatography, the maintenance is improper, the damage is easy, the instrument is low in price, the precision is low, and the registration error is often found in a delayed manner; the other type is a manual instrument, the manual instrument needs to consume manpower, the management difficulty is increased, and the obtained numerical value cannot be reflected to a desulfurization system in time, so that an automatic detection device for the content of the hydrogen sulfide, which is simple in structure, convenient to maintain and accurate in numerical indication, is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides an automatic detection device for the content of hydrogen sulfide in methane, which has simple and reliable principle and digital signal output.

The embodiment of the application discloses an automatic detection device for hydrogen sulfide content in biogas, which comprises a box body, wherein a baffle is arranged in the middle of the box body, a detection unit and a calculation and indication unit are respectively arranged on two sides of the baffle, the detection unit comprises a sampling mechanism and a detection mechanism, the detection mechanism is arranged above the sampling mechanism, the sampling mechanism comprises an air chamber fixed at the bottom of the box body, the air chamber is of a cube structure, windows are arranged on two sides of the air chamber, the windows are sealed by flexible materials, the air chamber is connected with an air pump, the air inlet end of the air pump is connected with a sampling port, the sampling port is arranged on the box body, an air outlet is arranged above the air chamber, the air outlet extends out of the box body, a sample measuring port is arranged on the upper end face of the air chamber, the detection mechanism comprises a mechanical arm fixed on the, a detection pipe bin for storing a detection pipe is arranged above the mechanical arm, a waste box is arranged at the bottom of the box body, a scavenging pump is arranged at the bottom of the detection unit, and a scavenging port is arranged at the top of the detection unit; the counting and displaying unit comprises a camera, a transparent window is arranged on the baffle, the camera is right opposite to the transparent window, the camera is connected with a computer, the computer is connected with a display screen, and the display screen is fixed on the outer side of the box body.

Preferably, the detection tube storehouse includes hopper type storage bin, the bottom of storage bin is connected with vertical guide bin, guide bin's thickness size with the diameter size of detection tube is unanimous, guide bin bottom is sealed, the front of guide bin's bottom is equipped with the discharge gate, the top slidable mounting of discharge gate has the first baffle that matches with it, the baffle is connected with electric putter, electric putter fixes on the guide bin, the both sides of discharge gate are equipped with L type layer board, the outside of L type layer board is equipped with the second baffle that matches with it.

Preferably, the length dimension of the horizontal part of the L-shaped supporting plate is consistent with the diameter dimension of the detection tube.

Preferably, there are 4 detection tube bins.

Preferably, the ventilation opening is provided with a filter screen.

The utility model has the advantages as follows: the air pump will await measuring the sample absorb extremely in the air chamber, the arm is followed the test tube storehouse snatchs the test tube extremely test tube mouth on the air chamber detects the gas that awaits measuring, detects the back, the camera passes through transparent window shoots the test tube, the camera will test the front and back photo transmission that shoots extremely the computer, the computer contrasts computational analysis test result to in time transmit the result to on the display screen, will read numerical value and turn into digital signal, room test result is more directly perceived accurate, the arm is accomplished getting of test tube, is detected and is retrieved, and is simple high-efficient, practices thrift the cost of labor.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a partial structure of an automatic detection device for hydrogen sulfide content in biogas.

FIG. 2 is a side view of a test tube cartridge.

Reference numerals of the above figures: 1. a sampling port; 2. an air pump; 3. an air chamber; 4. a sample measuring port; 5. an air outlet; 6. a mechanical arm; 7. detecting a pipe bin; 8. a baffle plate; 9. a box body; 10. a sampling mechanism; 11. a ventilation port; 12. a scavenging pump; 13. a waste bin; 14. a transparent window; 15. a camera; 16. a computer; 17. a display screen; 18. a detection mechanism; 19. a detection tube; 20. a storage bin; 21. a material guiding bin; 22. a discharge port; 23. a first baffle plate; 24. an electric push rod; 25. an L-shaped supporting plate; 26. a second baffle; 27. and (4) a window.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an automatic detection device for hydrogen sulfide content in biogas comprises a box body 9, a detachable box door is arranged on the side surface of the box body 9 to facilitate cleaning and maintenance of the interior of the box body, a baffle 8 is arranged in the middle of the box body 9, a detection unit and a counting indication unit are respectively arranged on two sides of the baffle 8 to protect a precision instrument in the counting indication unit, the detection unit comprises a sampling mechanism 10 and a detection mechanism 18, the detection mechanism 18 is arranged above the sampling mechanism 10, the sampling mechanism 10 comprises a gas chamber 3 fixed at the bottom of the box body 9, the gas chamber 3 is of a cubic structure, windows 27 are arranged on two sides of the gas chamber 3, the windows 27 are sealed by flexible materials, when gas is input into the gas chamber 3, the pressure inside and outside the gas chamber 3 is balanced through fluctuation of the flexible materials to ensure that the interior of the gas chamber 3 is at normal pressure, the gas chamber 3 is connected with a gas pump 2, the gas inlet end of the gas pump 2 is connected with a sampling port 1, the sampling port 1 is arranged on a box body 9, a gas outlet 5 is arranged above the gas chamber 3, the gas outlet 5 extends out of the box body 9, a sample measuring port 4 is arranged on the upper end face of the gas chamber 3, the detection mechanism 18 comprises a mechanical arm 6 fixed on the inner side of the box body 9, an electric clamping jaw common in the prior art is arranged at the front end of the mechanical arm 6, a detection tube bin 7 is arranged above the mechanical arm 6, a detection tube 19 is stored in the detection tube bin 7, a waste box 13 is arranged at the bottom of the box body 9, a scavenging pump 12 is arranged at the bottom of the detection unit, and a scavenging port 11 is arranged at the top of; the counting and displaying unit comprises a camera 15, a transparent window 14 is arranged on the baffle 8, the camera 15 is right opposite to the transparent window 14, the camera 15 is connected with a computer 16, the computer 16 is electrically connected with a display screen 17, and the display screen 17 is fixed on the outer side of the box body 9.

The detection tube bin 7 comprises a hopper-shaped storage bin 20, the bottom of the storage bin 20 is connected with a vertical guide bin 21, the thickness dimension of the guide bin 21 is consistent with the diameter dimension of the detection tube 19, it is ensured that the single detection tube 19 slides downwards along the guide bin 21, the bottom end of the guide bin 21 is closed, the front surface of the bottom of the guide bin 21 is provided with a discharge port 22, a first baffle 23 matched with the discharge port 22 is slidably mounted above the discharge port 22, the first baffle 23 is connected with an electric push rod 24, the electric push rod 24 is fixed on the guide bin 21, the electric push rod 24 pushes the first baffle 23 to slide up and down, the discharge port 22 is opened and closed, the L-shaped support plates 25 are arranged on two sides of the discharge port 22, the detection tube 19 rolls to the L-shaped support plates 25 from the discharge port 22, and supports the detection tube 19, and a second baffle 26 matched with the L-shaped supporting plate 25 is arranged on the outer side of the L-shaped supporting plate 25, and the second baffle 26 is used for preventing the detection pipe 19 from falling off in the rolling process.

The length dimension of the horizontal part of the L-shaped supporting plate 25 is consistent with the diameter dimension of the detection tube 19, so that the L-shaped supporting plate 25 can only support a single detection tube 19.

The number of the detection tube bins 7 is 4, detection tubes with detection ranges of 2-50, 10-200, 50-1500 and 200-5000ppm are respectively arranged in the four detection tube bins 7, and detection tubes with suitable ranges can be selected according to actual detection requirements.

The ventilation opening 11 is provided with a filter screen which can filter out dust and impurities in the air.

The working process of the device is as follows: treat that marsh gas is inhaled into air chamber 3 through sample connection 1 by air pump 2 in, absorb the gas volume and be greater than air chamber 3 volume, guarantee air chamber 3 interior gas sample concentration, unnecessary gas by gas outlet 5 discharges, after the gas sample is accomplished, electric putter 24 drive first baffle 23 moves upwards, discharge gate 22 is opened, single test tube 19 by discharge gate 22 rolls to on the L type layer board 25, electric putter 24 drive first baffle 23 slides down and closes discharge gate 22, prevent in the test process, the gas infiltration that awaits measuring in the test tube storehouse 7, corresponding measuring range test tube 19 that is located on the L type layer board 25 is got to arm 6 clamp, camera 15 shoots test tube 19 through transparent window 14 for the first time, sample connection 4 releases the gas that awaits measuring, test tube 19 detects the gas that awaits measuring, the test tube 19 will be according to the color difference change area of the corresponding length of the hydrogen sulfide concentration, after the detection is finished, the camera 15 will take a second photograph of the test tube 19 through the transparent window 14, and transmit the two photographs to the computer 16, the computer 16 will calculate the test result according to the change of the length of the color difference area, and transmit the result to the existing desulfurization system in time, the computer 16 will calculate the read value and convert it into digital signal to be displayed on the display screen 17, so that the test result is more visual and accurate, after the detection is finished, the mechanical arm 6 will place the used test tube 19 into the waste box 13, then the scavenging pump 12 will be started, the detection unit will be cleaned, the gas will enter from the scavenging port 11 with filter screen, will be discharged from the end of the air pump 12, after the cleaning is finished, the first detection is finished, during the test process, the material of the test tube 19 will be taken, And the test and recovery are completed by the mechanical arm 6, so that the test process is simple and efficient, and the labor cost is saved.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (5)

1. The utility model provides a hydrogen sulfide content automatic checkout device in marsh gas which characterized in that: the detection device comprises a box body, a baffle is arranged in the middle of the box body, a detection unit and a calculation and indication unit are respectively arranged on two sides of the baffle, the detection unit comprises a sampling mechanism and a detection mechanism, the detection mechanism is arranged above the sampling mechanism, the sampling mechanism comprises an air chamber fixed at the bottom of the box body, the air chamber is of a cube structure, windows are arranged on two sides of the air chamber, the windows are sealed by flexible materials, the air chamber is connected with an air pump, the air inlet end of the air pump is connected with a sampling port, the sampling port is arranged on the box body, an air outlet is arranged above the air chamber and extends out of the box body, a sample measuring port is arranged on the upper end face of the air chamber, the detection mechanism comprises a mechanical arm fixed on the inner side of the box body, a detection pipe bin for storing a detection pipe is arranged above the mechanical arm, and, the bottom of the detection unit is provided with a scavenging pump, and the top of the detection unit is provided with a scavenging port; the counting and displaying unit comprises a camera, a transparent window is arranged on the baffle, the camera is right opposite to the transparent window, the camera is electrically connected with a computer, the computer is connected with a display screen, and the display screen is fixed on the outer side of the box body.

2. The automatic detection device for the content of hydrogen sulfide in biogas according to claim 1, characterized in that: the utility model discloses a detection pipe storehouse, including detection pipe storehouse, the bottom of storehouse is connected with vertical guide bin, guide bin's thickness size with the diameter size of detection pipe is unanimous, guide bin bottom is sealed, the front of guide bin's bottom is equipped with the discharge gate, the top slidable mounting of discharge gate has the first baffle that matches with it, the baffle is connected with electric putter, electric putter fixes on the guide bin, the both sides of discharge gate are equipped with L type layer board, the outside of L type layer board is equipped with the second baffle that matches with it.

3. The automatic detection device for the content of hydrogen sulfide in biogas according to claim 2, characterized in that: the length dimension of the horizontal part of the L-shaped supporting plate is consistent with the diameter dimension of the detection tube.

4. The automatic detection device for the content of hydrogen sulfide in biogas according to claim 1, characterized in that: there are 4 detection tube storehouses.

5. The automatic detection device for the content of hydrogen sulfide in biogas according to claim 1, characterized in that: the air vent is provided with a filter screen.

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