Downhole portable hydrogen sulfide monitoring device

Abstract

The utility model discloses an underground portable hydrogen sulfide monitoring device which comprises a mounting rack, a shell and a controller, the shell is arranged on the surface of the mounting rack, and the controller is arranged on the surface of the shell. According to the underground portable hydrogen sulfide monitoring device provided by the utility model, the device can be quickly placed underground for monitoring hydrogen sulfide through the arrangement of the mounting frame, the device does not need to be carried by a worker for monitoring, the danger that the worker inhales the hydrogen sulfide due to overhigh concentration is avoided, and meanwhile, under the action of the detection mechanism, the device is convenient to use. The long-term detection accuracy of hydrogen sulfide can be improved, the situation that air inlet is affected by adhesion of dust and impurities can be reduced by cleaning the surface of the filter screen, long-term monitoring is facilitated, meanwhile, dust and impurities cleaned on the surface of the filter screen can be collected in cooperation with a collecting mechanism, the good ventilation effect of the filter screen is kept, and the service life of the filter screen is prolonged. Therefore, dust and impurities are prevented from adhering to the surface of the filter screen to influence monitoring of follow-up inlet air on hydrogen sulfide.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine equipment technical field especially relates to a downhole portable hydrogen sulfide monitoring device. BACKGROUND

[0002] Coal is one of the main energy sources in China, accounting for about 70% in primary energy production and consumption structure. There are various disasters in the process of coal mining, which threaten the safety production of mine, the life safety of personnel and huge economic losses. With the movement of the earth's crust, the distribution of hydrogen sulfide is constantly changing, gradually forming the gathering area and the dispersed area, which makes it possible to encounter sudden increase or gushing of hydrogen sulfide content when mining coal seam. At present, there are more than 20 coal mines in China that have occurred sudden gushing phenomenon caused by hydrogen sulfide gas occurrence, and caused accidents.

[0003] Hydrogen sulfide is a flammable acidic gas under standard conditions, which is a colorless and odorless gas. At low concentration, it will produce the smell of rotten eggs, is toxic, and will become an explosive mixture after mixing with air, and will burn and explode when encountering fire and high temperature. When the content of hydrogen sulfide in mine air is 0.005%-0.01%, it will cause serious irritation of eye and pharyngeal mucosa, and appear symptoms such as headache, vomiting and fatigue; in the case of concentration of 0.1%-0.2%, it can cause death within a few seconds.

[0004] For example, the utility model patent (CN208443855U) discloses a downhole portable hydrogen sulfide detector. The patent is provided with an air inlet fan electrically connected with the storage battery through screws on one side of the bottom of the detector main body mounting bracket. The air inlet fan includes a fan mounting seat, an air inlet fan shell and a fan. The bottom of the fan mounting seat is connected with the air inlet fan shell. The inside of the air inlet fan shell is provided with a fan holder, and the fan holder is provided with a fan. A filter screen is installed at the air inlet of the air inlet fan shell, and the blowing direction of the air inlet fan is towards the probe head. The air inlet fan can increase the airflow circulation speed around the probe head, and improve the detection speed and accuracy of the detector main body.

[0005] However, the inventor found that the manual observation and inspection method cannot meet the continuous development of mine construction in terms of timeliness, accuracy and reliability, and the danger may occur at any time. UTILITY MODEL CONTENT

[0006] Based on this, it is necessary to solve the above technical problems, provide a kind of portable hydrogen sulfide monitoring device in well, by setting up mounting bracket can be quickly placed in well for the monitoring of hydrogen sulfide, without staff carrying for monitoring, avoid the danger of inhaling by staff due to concentration is too high, while under the action of detection mechanism, it can improve the accuracy of long-term detection of hydrogen sulfide, can reduce the influence of dust impurities adhesion by the cleaning of filter screen surface, facilitate the long-term monitoring is carried out, while being able to cooperate with collection mechanism to collect the dust impurities cleaned on the filter screen surface, keep the good ventilation effect of filter screen, thereby avoid the influence of dust impurities adhesion on the surface of filter screen on subsequent air intake hydrogen sulfide monitoring.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0008] A kind of portable hydrogen sulfide monitoring device in well, it is applied to hydrogen sulfide detection in well.

[0009] Including:

[0010] Mounting bracket, shell and controller, the shell is set to the surface of the mounting bracket, the controller is set to the surface of the shell;

[0011] Detection mechanism, the detection mechanism is set to the inside of the shell, the detection mechanism is used to detect the concentration temperature of hydrogen sulfide;

[0012] Collection mechanism, the collection mechanism is set to the inside of the shell and cooperates detection mechanism to reduce the influence of dust impurities.

[0013] As a preferred embodiment of the portable hydrogen sulfide monitoring device in well provided by the utility model, the detection mechanism includes connecting channel, temperature sensor, hydrogen sulfide concentration sensor and two filter screens, the connecting channel is opened in the inside of shell, and the opening section of the connecting channel is U-shaped, the two end openings of the connecting channel are all connected with the outside, two filter screens are respectively set to the two end openings of the connecting channel and are fixedly connected with the inner wall of the connecting channel, and the hydrogen sulfide concentration sensor and temperature sensor are both set to the inside below of the connecting channel.

[0014] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the detection mechanism further comprises a double-shaft motor, two rotating shafts, a mounting seat and a fan blade, the double-shaft motor is arranged above the inside of the connecting channel, two output shafts of the double-shaft motor are fixedly connected with one end of the two rotating shafts respectively, the mounting seat is fixedly connected with the inside of the connecting channel and is located on the side of the double-shaft motor away from the filter screen, the other end of one of the rotating shafts is rotatably connected with the inner wall of the mounting seat, and the fan blade is arranged on the surface of the rotating shaft.

[0015] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the detection mechanism further comprises a connecting ring and a scraper, the connecting ring is fixedly connected with one side of the shell and is coaxially arranged with the upper end opening of the connecting channel, the scraper is arranged on the inner side of the connecting ring, one side of the scraper is in contact with the surface of the filter screen, a collecting groove is formed in the inner side of the scraper, and an import groove in communication with the collecting groove is formed in one side of the scraper.

[0016] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the surface of the connecting ring is fixedly connected with a connecting shell, and a through groove in communication with the connecting shell is formed in the surface of the connecting ring.

[0017] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the other end of the rotating shaft away from the fan blade side penetrates out of the filter screen and is fixedly connected with the surface of one end of the scraper.

[0018] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the collecting mechanism comprises a mounting cavity, a collecting channel and a collecting assembly, the mounting cavity is formed in one side of the shell, the collecting channel is formed in the inside of the shell, one end of the collecting channel is in communication with the mounting cavity, the other end of the collecting channel is in communication with the inner side of the connecting shell, and the collecting assembly is detachably arranged in the inside of the mounting cavity.

[0019] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the collecting assembly comprises a shell, a connecting frame, a mounting shell, an inner container and a water-absorbing cotton strip, the shell is detachably arranged in the inside of the mounting cavity, the inner wall of the shell is fixedly connected with the connecting frame, the inside of the shell is provided with the mounting shell which is detachable and located above the connecting frame, the inner container is fixedly connected with the inside of the mounting shell, the inner container is made of water-absorbing cotton material, the water-absorbing cotton strip is fixedly connected with the bottom of the inner container uniformly, and the lower end of the water-absorbing cotton strip penetrates out of the mounting shell.

[0020] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the collecting assembly further comprises a baffle, a rotating block, a connecting shaft, a connecting rope, a clamping block and a spring, the baffle is fixedly connected to one side of the shell, the rotating block is arranged on the other side of the baffle, the connecting shaft is rotatably connected to the inner wall of the baffle, and the other end of the connecting shaft penetrates out of the baffle and is fixedly connected to the surface of the rotating block, the baffle is provided with a receiving groove on both sides, the clamping block is slidably connected to the inside of the receiving groove, one end of the connecting rope is fixedly connected to one end of the clamping block, the other end of the connecting rope is fixedly connected to the surface of the connecting shaft, one end of the spring is fixedly connected to the inner wall of the receiving groove, and the other end of the spring is fixedly connected to the surface of the clamping block.

[0021] As a preferred embodiment of the underground portable hydrogen sulfide monitoring device provided by the utility model, the inner wall of the mounting cavity is provided with two clamping grooves, the clamping block corresponds to the clamping groove, and the side of the clamping block close to the shell is provided with an inclined surface.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The underground portable hydrogen sulfide monitoring device provided by the utility model can place the device in the well quickly for monitoring hydrogen sulfide, without the need for staff to carry out monitoring, so that the risk of inhaling by staff due to excessively high concentration is avoided, and under the action of the detection mechanism, the accuracy of long-term detection of hydrogen sulfide can be improved, the influence of dust and impurities on air intake can be reduced by cleaning the surface of the filter screen, long-term monitoring can be facilitated, dust and impurities on the surface of the filter screen can be collected by cooperating with the collecting mechanism, the good ventilation effect of the filter screen is maintained, and therefore the influence of dust and impurities adhering to the surface of the filter screen on subsequent air intake for monitoring hydrogen sulfide is avoided.

[0024] Under the action of the collecting mechanism, the detection mechanism can be used to collect dust and impurities, so that the traditional cleaning method of scraping dust and impurities on the surface of the filter screen and then re-adhering the dust and impurities to the surface of the filter screen due to subsequent airflow is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the scheme in the utility model, the drawings needed in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1The structure schematic diagram of the hydrogen sulfide monitoring device is provided.

[0027] Figure 2 The partial explosion view of the hydrogen sulfide monitoring device is provided.

[0028] Figure 3 The distribution schematic diagram of the scraper and the connecting ring of the hydrogen sulfide monitoring device is provided.

[0029] Figure 4 The section schematic diagram of the hydrogen sulfide monitoring device shell along A-A' is provided.

[0030] Figure 5 The section schematic diagram of the hydrogen sulfide monitoring device shell along B-B' is provided.

[0031] Figure 6 The separation schematic diagram of the connecting frame, the shell and the installation shell of the hydrogen sulfide monitoring device is provided.

[0032] Figure 7 The section schematic diagram of the baffle of the hydrogen sulfide monitoring device along C-C' is provided.

[0033] The mark in the drawing is explained as follows:

[0034] Mounting frame 1, shell 101, controller 102, cover plate 103, battery compartment 104; battery body 105;

[0035] Detection mechanism 2, double-shaft motor 201, fan blade 202, mounting seat 203, filter screen 204, connecting ring 205, rotating shaft 206, scraper; connecting shell 208, through slot 209, connecting channel 210, temperature sensor 211, hydrogen sulfide concentration sensor 212;

[0036] Collecting mechanism 3, mounting cavity 301, collecting channel 302, spring 303, clamping groove 304, installation shell 305, connecting frame 306, inner container 307, water-absorbing cotton 308, shell 309, connecting shaft 310, baffle 311, clamping block 312, connecting rope 313. DETAILED DESCRIPTION

[0037] In order for the personnel in the technical field to better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0038] As described in the background, the way of artificial observation and inspection cannot meet the development of mine construction in timeliness, accuracy and reliability, and danger is accompanied by the birth.

[0039] In order to solve this technical problem, the utility model provides a portable hydrogen sulfide monitoring device in pit, which is applied to hydrogen sulfide detection in pit.

[0040] Specifically, please refer to Figures 1-7 The hydrogen sulfide monitoring device specifically comprises:

[0041] The mounting bracket 1, the shell 101 and the controller 102, the shell 101 is arranged on the surface of the mounting bracket 1, and the controller 102 is arranged on the surface of the shell 101;

[0042] The detection mechanism 2 is arranged in the inside of the shell 101, and the detection mechanism 2 is used for detecting the concentration temperature of hydrogen sulfide;

[0043] The collection mechanism 3 is arranged in the inside of the shell 101 and cooperates with the detection mechanism 2 to reduce the influence of dust impurities.

[0044] The portable hydrogen sulfide monitoring device in pit provided by the utility model can be quickly placed in pit for monitoring hydrogen sulfide by arranging the mounting bracket 1, without the need for staff to carry out monitoring, avoiding the danger of inhaling by staff due to too high concentration, improving the accuracy of long-term detection of hydrogen sulfide under the action of the detection mechanism 2, reducing the adhesion of dust impurities to the surface of the filter screen 204 to affect air intake, facilitating long-term monitoring, and cooperating with the collection mechanism 3 to collect the dust impurities cleaned from the surface of the filter screen 204, maintaining the good ventilation effect of the filter screen 204, thereby avoiding the adhesion of dust impurities to the surface of the filter screen 204 to affect the subsequent air intake for monitoring hydrogen sulfide.

[0045] In order to enable the personnel in the technical field to better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings.

[0046] It should be noted that, in the case of no conflict, the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other.

[0047] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0048] Embodiment one

[0049] Please refer toFigures 1-7 The hydrogen sulfide monitoring device comprises a battery compartment 104 opened at the top of the shell 101, a battery body 105 capable of being charged is arranged in the battery compartment 104, and a cover plate 103 for shielding the battery compartment 104 and being detachable is arranged at the top of the shell 101.

[0050] The detection mechanism 2 comprises a connecting channel 210, a temperature sensor 211, a hydrogen sulfide concentration sensor 212, and two filter screens 204. The connecting channel 210 is opened in the inside of the shell 101, and the opening section of the connecting channel 210 is in a U shape. Both ends of the connecting channel 210 are connected with the outside. The two filter screens 204 are arranged at both ends of the connecting channel 210 and are fixedly connected with the inner wall of the connecting channel 210. The temperature sensor 211 and the hydrogen sulfide concentration sensor 212 are arranged below the inside of the connecting channel 210.

[0051] The detection mechanism 2 further comprises a double-shaft motor 201, two rotating shafts 206, a mounting seat 203, and a fan blade 202. The double-shaft motor 201 is arranged above the inside of the connecting channel 210, and two output shafts of the double-shaft motor 201 are fixedly connected with one end of the two rotating shafts 206. The mounting seat 203 is fixedly connected with the inside of the connecting channel 210 and is located at the side of the double-shaft motor 201 away from the filter screen 204. The other end of one of the rotating shafts 206 is rotationally connected with the inner wall of the mounting seat 203, and the fan blade 202 is arranged on the surface of the rotating shaft 206.

[0052] The hydrogen sulfide monitoring device provided by the embodiment, wherein the battery body 105 is used for power supply of the temperature sensor 211, the hydrogen sulfide concentration sensor 212, the double-shaft motor 201, and the controller 102. The controller 102 is a programmable controller 102 internally carrying a remote transmission module, which can transmit the values detected by the temperature sensor 211 and the hydrogen sulfide concentration sensor 212 to a remote terminal, so that workers can understand the concentration of hydrogen sulfide and the temperature condition in the well without going down the well.

[0053] By starting the double-shaft motor 201, the double-shaft motor 201 can drive the two rotating shafts 206 to rotate synchronously. The double-shaft motor 201 is a relatively mature component in the prior art, and will not be described in detail here. One of the rotating shafts 206 can drive the fan blade 202 to rotate in the process of rotation, thereby guiding the air from the upper filter screen 204 to the inside of the connecting channel 210 and passing through the connecting channel 210 to discharge it from the lower filter screen 204. In this process, the temperature sensor 211 and the hydrogen sulfide concentration sensor 212 can detect the temperature and the hydrogen sulfide concentration in the flowing air. The arrangement of the filter screen 204 can prevent dust and impurities in the well from entering the inside of the connecting channel 210 and affecting the use of the temperature sensor 211 and the hydrogen sulfide concentration sensor 212.

[0054] Embodiment Two

[0055] The hydrogen sulfide monitoring device provided in Embodiment 1 is further optimized, and specifically, as shown in 1-7, the detection mechanism 2 further comprises a connecting ring 205 and a scraper 207, the connecting ring 205 is fixedly connected to one side of the shell 101 and coaxially arranged with the upper end opening of the connecting channel 210, the scraper 207 is arranged on the inner side of the connecting ring 205, and one side of the scraper 207 is in contact with the surface of the filter screen 204, the inner side of the scraper 207 is provided with a collection groove, and one side of the scraper 207 is provided with a guide groove in communication with the collection groove.

[0056] The surface of the connecting ring 205 is fixedly connected with a connecting shell 208, and the surface of the connecting ring 205 is provided with a through groove 209 in communication with the connecting shell 208.

[0057] The other end of the rotating shaft 206 away from the fan blade 202 penetrates out of the filter screen 204 and is fixedly connected with the surface of one end of the scraper 207.

[0058] Through the above structural design, in the working process of the double-shaft motor 201, the scraper 207 can be driven to rotate by the other rotating shaft 206, so as to clean the surface of the filter screen 204 on the side of the entering airflow, the setting of the guide groove can make the scraped impurities and dust collected in the inner side of the collection groove, and with the increase of the collected impurities, the impurities can be discharged into the inner side of the connecting shell 208 through the through groove 209 under the action of gravity when the rotating process is in communication with the through groove 209, avoiding the situation that the dust and impurities on the surface of the filter screen 204 are scraped off and then re-stick to the surface of the filter screen 204 due to the influence of the subsequent airflow in the traditional cleaning method.

[0059] Embodiment Three

[0060] The hydrogen sulfide monitoring device provided in Embodiment 1 or 2 is further optimized, as shown in Figures 1-7 , the collection mechanism 3 comprises a mounting cavity 301, a collection channel 302 and a collection assembly, the mounting cavity 301 is arranged on one side of the shell 101, the collection channel 302 is arranged in the inner side of the shell 101, one end of the collection channel 302 is in communication with the mounting cavity 301, the other end of the collection channel 302 is in communication with the inner side of the connecting shell 208, and the collection assembly is detachably arranged in the inner side of the mounting cavity 301.

[0061] The collection assembly includes a housing 309, a connecting frame 306, a mounting shell 305, an inner liner 307, and absorbent cotton strips 308. The housing 309 is detachably disposed inside the mounting cavity 301. The connecting frame 306 is fixedly connected to the inner wall of the housing 309. The mounting shell 305, which is detachable and located above the connecting frame 306, is disposed inside the housing 309. The inner liner 307 is fixedly connected to the inside of the mounting shell 305. The inner liner 307 is made of absorbent cotton material. The absorbent cotton strips 308 are evenly fixedly connected to the bottom of the inner liner 307, and the lower end of the absorbent cotton strips 308 extends through the mounting shell 305.

[0062] In practice, impurities and dust entering the connecting shell 208 can be guided into the mounting cavity 301 by the collection channel 302. The shell 309 is filled with water located below the connecting frame 306. Under the action of the absorbent cotton strip 308, the water can be guided to wet the inner liner 307 of the absorbent cotton material component, so that the collected dust and impurities can adhere to the inner liner 307. The dust and impurities entering the inner liner 307 are strengthened by the water, reducing the possibility of backflow to the outside.

[0063] Example 4

[0064] The hydrogen sulfide monitoring device provided in the above embodiments can be further optimized, such as... Figures 1-7 As shown, the collection assembly also includes a baffle 311, a rotating block, a connecting shaft 310, a connecting rope 313, a locking block 312, and a spring 303. The baffle 311 is fixedly connected to one side of the housing 309, the rotating block is disposed on the other side of the baffle 311, the connecting shaft 310 is rotatably connected to the inner wall of the baffle 311, and the other end of the connecting shaft 310 passes through the baffle 311 and is fixedly connected to the surface of the rotating block. Both sides of the baffle 311 are provided with storage slots, the locking block 312 is slidably connected to the inside of the storage slots, one end of the connecting rope 313 is fixedly connected to one end of the locking block 312, and the other end of the connecting rope 313 is fixedly connected to the surface of the connecting shaft 310. One end of the spring 303 is fixedly connected to the inner wall of the storage slots, and the other end of the spring 303 is fixedly connected to the surface of the locking block 312.

[0065] The inner wall of the mounting cavity 301 has two slots 304, and the locking block 312 corresponds to the slots 304. The side of the locking block 312 near the housing 309 has an inclined surface.

[0066] When the shell 309 is installed, the shell 309 is inserted into the inside of the mounting cavity 301, in the process, the inclined surface of the clamping block 312 can be pressed to compress the spring 303 and retract into the inside of the storage cavity, until the clamping block 312 corresponds to the clamping groove 304 after installation, so that the clamping block 312 is reset under the action of the spring 303 and inserted into the inside of the clamping groove 304 to complete the limiting of the shell 309, when disassembling, the connecting shaft 310 can be rotated by rotating the rotating block, and then the connecting rope 313 can be wound under the action of the connecting shaft 310 to realize the effect that the clamping block 312 is separated from the clamping groove 304, so that the limiting of the shell 309 is released, and the shell 309 can be taken out to realize the effect that the inner container 307 is replaced and cleaned.

[0067] The use process of the hydrogen sulfide monitoring device is as follows: the device is placed at a position needing to be monitored in a well, the double-shaft motor 201 is started, the two rotating shafts 206 are driven to rotate synchronously under the action of the double-shaft motor 201, the double-shaft motor 201 is a relatively mature component in the prior art, and will not be described in detail herein, the fan blade 202 is driven to rotate in the rotating process of one of the rotating shafts 206, and then external air is guided into the inside of the connecting channel 210 from the upper filter screen 204 and discharged from the lower filter screen 204 through the connecting channel 210, in the process, the temperature and the hydrogen sulfide concentration in the flowing air can be detected by the temperature sensor 211 and the hydrogen sulfide concentration sensor 212, the filter screen 204 can prevent dust and impurities in the well from entering the inside of the connecting channel 210 and affecting the use of the temperature sensor 211 and the hydrogen sulfide concentration sensor 212, the scraper 207 is driven to rotate by the other rotating shaft 206, and thus the surface of the filter screen 204 on the side of the airflow is cleaned, the setting of the guide groove enables the scraped impurities and dust to be collected in the inside of the collection groove, and as the impurities increase, the impurities can be guided into the inside of the connecting shell 208 through the through groove 209 under the action of gravity when the through groove 209 is communicated with the guide groove 209 in the rotating process, and thus the impurities are discharged, and the situation that the dust and impurities scraped from the surface of the filter screen 204 are reattached to the surface of the filter screen 204 due to the subsequent airflow is avoided.

[0068] In the utility model, unless another definite provision and limitation, the term " install", " link", " connect", " fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside communication or two element's interaction relation, unless another definite limitation.For ordinary skilled in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0069] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A portable downhole hydrogen sulfide monitoring device, characterized in that, It includes The mounting bracket (1), the housing (101), and the controller (102) are provided on the surface of the mounting bracket (1) and the controller (102) are provided on the surface of the housing (101). The detection mechanism (2) is disposed inside the outer shell (101) and is used to detect the concentration and temperature of hydrogen sulfide. The collection mechanism (3) is located inside the housing (101) and works in conjunction with the detection mechanism (2) to reduce the impact of dust and impurities.

2. The portable downhole hydrogen sulfide monitoring device according to claim 1, characterized in that, The detection mechanism (2) includes a connecting channel (210), a temperature sensor (211), a hydrogen sulfide concentration sensor (212), and two filters (204). The connecting channel (210) is located inside the outer shell (101), and the cross-section of the connecting channel (210) is U-shaped. Both ends of the connecting channel (210) are connected to the outside. The two filters (204) are respectively located at the two ends of the connecting channel (210) and are fixedly connected to the inner wall of the connecting channel (210). The hydrogen sulfide concentration sensor (212) and the temperature sensor (211) are both located inside the lower part of the connecting channel (210).

3. The portable downhole hydrogen sulfide monitoring device according to claim 2, characterized in that, The detection mechanism (2) further includes a dual-axis motor (201), two rotating shafts (206), a mounting base (203), and a fan blade (202). The dual-axis motor (201) is located inside the upper part of the connecting channel (210), and the two output shafts of the dual-axis motor (201) are fixedly connected to one end of the two rotating shafts (206), respectively. The mounting base (203) is fixedly connected inside the connecting channel (210) and located on the side of the dual-axis motor (201) away from the filter screen (204). The other end of one of the rotating shafts (206) is rotatably connected to the inner wall of the mounting base (203), and the fan blade (202) is located on the surface of the rotating shaft (206).

4. The portable downhole hydrogen sulfide monitoring device according to claim 3, characterized in that, The detection mechanism (2) further includes a connecting ring (205) and a scraper (207). The connecting ring (205) is fixedly connected to one side of the housing (101) and is coaxially arranged with the upper opening of the connecting channel (210). The scraper (207) is disposed inside the connecting ring (205), and one side of the scraper (207) is in contact with the surface of the filter screen (204). A collection groove is provided on the inner side of the scraper (207), and an inlet groove communicating with the collection groove is provided on one side of the scraper (207).

5. The portable downhole hydrogen sulfide monitoring device according to claim 4, characterized in that, The surface of the connecting ring (205) is fixedly connected to the connecting shell (208), and the surface of the connecting ring (205) is provided with a through groove (209) that communicates with the connecting shell (208).

6. The portable downhole hydrogen sulfide monitoring device according to claim 4, characterized in that, The other end of the shaft (206) on the side away from the fan blade (202) passes through the filter screen (204) and is fixedly connected to one end surface of the scraper (207).

7. The portable downhole hydrogen sulfide monitoring device according to claim 5, characterized in that, The collection mechanism (3) includes a mounting cavity (301), a collection channel (302), and a collection component. The mounting cavity (301) is located on one side of the outer shell (101). The collection channel (302) is located inside the outer shell (101), with one end of the collection channel (302) connected to the mounting cavity (301) and the other end of the collection channel (302) connected to the inner side of the connecting shell (208). The collection component is detachably disposed inside the mounting cavity (301).

8. The portable downhole hydrogen sulfide monitoring device according to claim 7, characterized in that, The collection assembly includes a housing (309), a connecting frame (306), a mounting shell (305), an inner liner (307), and absorbent cotton strips (308). The housing (309) is detachably disposed inside the mounting cavity (301). The connecting frame (306) is fixedly connected to the inner wall of the housing (309). The mounting shell (305) is detachably disposed inside the housing (309) and located above the connecting frame (306). The inner liner (307) is fixedly connected to the inside of the mounting shell (305). The inner liner (307) is made of absorbent cotton material. The absorbent cotton strips (308) are evenly fixedly connected to the bottom of the inner liner (307), and the lower end of the absorbent cotton strips (308) extends through the mounting shell (305).

9. The portable downhole hydrogen sulfide monitoring device according to claim 8, characterized in that, The collecting assembly also includes a baffle (311), a rotating block, a connecting shaft (310), a connecting rope (313), a locking block (312), and a spring (303). The baffle (311) is fixedly connected to one side of the housing (309), the rotating block is disposed on the other side of the baffle (311), and the connecting shaft (310) is rotatably connected to the inner wall of the baffle (311), with the other end of the connecting shaft (310) penetrating through the baffle (311) and meeting the surface of the rotating block. The baffle (311) is fixedly connected to the inside of the storage slots on both sides. The locking block (312) is slidably connected to the inside of the storage slots. One end of the connecting rope (313) is fixedly connected to one end of the locking block (312), and the other end of the connecting rope (313) is fixedly connected to the surface of the connecting shaft (310). One end of the spring (303) is fixedly connected to the inner wall of the storage slots, and the other end of the spring (303) is fixedly connected to the surface of the locking block (312).

10. The portable downhole hydrogen sulfide monitoring device according to claim 9, characterized in that, The inner wall of the mounting cavity (301) is provided with two slots (304), and the locking block (312) corresponds to the slots (304). The locking block (312) has an inclined surface on the side near the housing (309).

Images