CN110609122B - Cable pit gas monitoring equipment - Google Patents
Cable pit gas monitoring equipment Download PDFInfo
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- CN110609122B CN110609122B CN201910878068.2A CN201910878068A CN110609122B CN 110609122 B CN110609122 B CN 110609122B CN 201910878068 A CN201910878068 A CN 201910878068A CN 110609122 B CN110609122 B CN 110609122B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 78
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000012806 monitoring device Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a cable trench gas monitoring device, which comprises a box body, wherein an installation mechanism is arranged on the box body, an air channel is arranged on one side in the box body, a first cavity, a second cavity, a third cavity and a fourth cavity are sequentially arranged on the other side in the box body from bottom to top, an air pipe is fixedly connected in the first cavity, a methane detector, an oxygen sensor and a temperature and humidity sensor are all arranged in the box body, the methane detector, the oxygen sensor, the temperature and humidity sensor and air in a cable trench can be isolated, and the methane detector, the oxygen sensor and the temperature and humidity sensor are prevented from being corroded by moisture And monitoring the oxygen concentration and the temperature and humidity.
Description
Technical Field
The invention relates to monitoring equipment, in particular to cable trench gas monitoring equipment, and belongs to the technical field of detection equipment.
Background
The cable trench is a passage for laying cables and replacing cable equipment, in order to ensure the safety of the cables, the internal environment of the cable trench needs to be checked frequently, and the gas monitoring equipment is one of devices required for checking.
At present, when monitoring the methane concentration, the oxygen concentration and the temperature and humidity in a cable trench, workers mostly install a plurality of methane detectors, oxygen sensors and temperature and humidity sensors on the inner wall of the cable trench, the number of required instruments is large, and the flowing speed of air in the cable trench is low, so that the methane detectors, the oxygen sensors and the temperature and humidity sensors can only monitor the methane concentration, the oxygen concentration and the temperature and humidity in partial regions of the cable trench, and the methane detectors, the oxygen sensors and the temperature and humidity sensors are exposed in the air and are easily corroded by moisture in the cable trench.
Disclosure of Invention
The invention provides a cable trench gas monitoring device which effectively solves the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a cable duct gas monitoring device, which comprises a box body, wherein an installation mechanism is arranged on the box body, an air duct is arranged on one side inside the box body, a first cavity, a second cavity, a third cavity and a fourth cavity are sequentially arranged on the other side inside the box body from bottom to top, an air pipe is fixedly connected inside the first cavity, one end, far away from the air duct, of the air pipe penetrates through the side wall of the first cavity and extends to the outside of the box body, one end, close to the air duct, of the air pipe penetrates through the side wall of the first cavity and extends to the inside of the air duct, one end, far away from the air duct, inside the air pipe is fixedly connected with a suction fan, a fixing mechanism is arranged inside the second cavity, a methane detector is clamped on the fixing mechanism, an oxygen sensor and a temperature and humidity sensor are clamped inside the third cavity through two clamping mechanisms, three box doors are movably connected on the front surface of the box body through second hinges, the three box doors correspond to the second cavity, the third cavity and the fourth cavity respectively, an air outlet is formed in the upper end of one side of the box body and communicated with the air duct, and a protection mechanism is inserted into the air outlet.
As a preferable technical scheme of the invention, the mounting mechanism comprises two side plates, the two side plates are detachably connected to two opposite sides of the box body through a plurality of second bolts, a plurality of first bolts are inserted into one sides of the front surfaces of the two side plates, which are far away from the box body, a back plate is fixedly connected between the back surfaces of the two side plates, the front surface of the back plate is contacted with the back surface of the box body, a bottom plate is fixedly connected between the lower ends of the two side plates, and the upper end of the bottom plate is contacted with the lower end of the box body.
According to a preferable technical scheme of the invention, the fixing mechanism comprises a fixing plate, the back of the fixing plate is fixedly connected to the inner side wall of the second cavity, the upper end and the lower end of one side, close to the air duct, of the front of the fixing plate are fixedly connected with baffle plates, a groove is formed in the middle of the front of the fixing plate, a plurality of first compression springs are fixedly connected to the bottom of the groove, the other ends of the first compression springs are fixedly connected with a squeezing plate together, movable plates are movably connected to the middle of the upper end and the lower end of the front of the fixing plate through first hinges, the movable plates are in an L-shaped structure, and one ends, far away from the fixing plate, of the movable plates are clamped on the methane detector.
According to a preferred technical scheme, the clamping mechanism comprises clamping plates, clamping grooves are formed in the upper end and the lower end of the back of each clamping plate, the clamping grooves are of arc-shaped structures, fixed blocks are fixedly connected to the inner side walls of the clamping grooves, second compression springs are fixedly connected to the back of the fixed blocks, clamping blocks are fixedly connected to the other ends of the second compression springs, two clamping blocks arranged on the same clamping plate are respectively in contact with an oxygen sensor and a temperature and humidity sensor, first supporting plates are fixedly connected to the upper end and the lower end of each clamping plate, third bolts are inserted into the front faces of the first supporting plates and penetrate through the first supporting plates, and the third bolts are connected to the inner side walls of third cavities in a threaded mode.
As a preferred technical scheme of the invention, the protection mechanism comprises a protection cover, the protection cover is arranged in a hollow manner, the protection cover is positioned on the front side of the side plate on the same side, the protection cover is inserted into the air outlet, one side of the protection cover close to the box body is provided with an opening, one side of the protection cover far away from the box body is provided with a plurality of air holes, the upper end and the lower end of the protection cover are fixedly connected with second support plates, fourth bolts are inserted on the second support plates, and the fourth bolts penetrate through the second support plates and are in threaded connection with the outer side wall of the box body.
As a preferred technical scheme of the invention, a first sealing ring is embedded in the side wall of the second cavity close to the air duct, the detection end of the methane detector penetrates through the first sealing ring and extends into the air duct, two second sealing rings are embedded in the side wall of the third cavity close to the air duct, the oxygen sensor and the temperature and humidity sensor correspond to the two second sealing rings respectively, and the detection ends of the oxygen sensor and the temperature and humidity sensor penetrate through the corresponding second sealing rings and extend into the air duct.
As a preferred technical scheme of the invention, a guide pipe is inserted into the upper end of one side of the box body, which is far away from the air outlet, the guide pipe is positioned on the front side of the side plate on the same side, the guide pipe is communicated with the fourth cavity, an external lead is arranged inside the guide pipe, a rubber ring is arranged between the outer side wall of the external lead and the inner side wall of the guide pipe, and one end of the external lead extends into the fourth cavity and is electrically connected with the storage battery.
As a preferred technical scheme of the present invention, a storage battery and a controller are fixedly connected inside the fourth cavity, a signal transceiver is fixedly connected to the upper end of the box body, the suction fan, the biogas detector, the oxygen sensor and the temperature and humidity sensor, and the controller and the signal transceiver are all electrically connected to the storage battery, and the suction fan, the biogas detector, the oxygen sensor, the temperature and humidity sensor and the signal transceiver are all electrically connected to the controller.
The invention has the following beneficial effects:
1. the methane detector, the oxygen sensor and the temperature and humidity sensor are all arranged inside the box body, the methane detector, the oxygen sensor, the temperature and humidity sensor and air in the cable trench can be isolated, the methane detector, the oxygen sensor and the temperature and humidity sensor are prevented from being corroded by moisture, an air pipe and an air duct with a suction fan are arranged inside the box body, air in the cable trench can be sucked into the air duct, and methane concentration, oxygen concentration and temperature and humidity in the cable trench are monitored by monitoring the air in the air duct.
2. The suction fan can accelerate the air flowing speed in the cable trench and expand the detection area, so that the suction fan can monitor other areas in the cable trench, and the number of the arranged methane detectors, oxygen sensors and temperature and humidity sensors is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a view of the area at A in FIG. 1;
FIG. 3 is a schematic structural view of the securing mechanism of the present invention;
FIG. 4 is a schematic structural view of the clamping mechanism of the present invention;
FIG. 5 is an external view of the present invention
Fig. 6 is a block diagram of the present invention.
In the figure: 1. a box body; 2. an air duct; 3. an installation mechanism; 31. a side plate; 32. a first bolt; 33. a second bolt; 34. a back plate; 35. a base plate; 4. a fixing mechanism; 41. a fixing plate; 42. a groove; 43. a first compression spring; 44. a pressing plate; 45. a baffle plate; 46. a first hinge; 47. a movable plate; 5. a clamping mechanism; 51. clamping a plate; 52. a first support plate; 53. a third bolt; 54. a card slot; 55. a fixed block; 56. a second compression spring; 57. a clamping block; 6. a protection mechanism; 61. a protective cover; 62. air holes are formed; 63. a second support plate; 64. a fourth bolt; 7. a first cavity; 8. a second cavity; 9. a third cavity; 10. a fourth cavity; 11. an air duct; 12. a suction fan; 13. a methane detector; 14. a first seal ring; 15. an oxygen sensor; 16. a temperature and humidity sensor; 17. a second seal ring; 18. a storage battery; 19. a controller; 20. a conduit; 21. connecting a lead externally; 22. a signal transceiver; 23. a second hinge; 24. a box door; 25. and (7) air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): as shown in fig. 1-6, the gas monitoring device for a cable trench of the present invention comprises a box body 1, wherein an installation mechanism 3 is arranged on the box body 1, an air duct 2 is arranged on one side inside the box body 1, a first cavity 7, a second cavity 8, a third cavity 9 and a fourth cavity 10 are sequentially arranged on the other side inside the box body 1 from bottom to top, an air pipe 11 is fixedly connected inside the first cavity 7, one end of the air pipe 11 far away from the air duct 2 penetrates through the side wall of the first cavity 7 and extends to the outside of the box body 1, one end of the air pipe 11 close to the air duct 2 penetrates through the side wall of the first cavity 7 and extends to the inside of the air duct 2, so as to discharge air into the air duct 2, one end of the inside of the air pipe 11 far away from the air duct 2 is fixedly connected with a suction fan 12, so as to accelerate the flow rate of air in the cable trench, a fixing mechanism 4 is arranged inside the second cavity 8, fixing mechanism 4 is last the joint has marsh gas detector 13, the inside of third cavity 9 is connected with oxygen sensor 15 and temperature and humidity sensor 16 through two joint mechanism 5 joints, box 1 openly has three chamber door 24 through second hinge 23 swing joint, and is three chamber door 24 is corresponding with second cavity 8, third cavity 9 and fourth cavity 10 respectively, is convenient for maintain marsh gas detector 13, oxygen sensor 15 and temperature and humidity sensor 16, one side upper end of box 1 is equipped with air outlet 25, air outlet 25 communicates with each other with wind channel 2, the inside grafting of air outlet 25 has protection machanism 6.
Wherein, installation mechanism 3 includes two curb plates 31, two curb plate 31 all can dismantle the connection on the relative both sides of box 1 through a plurality of second bolts 33, two curb plate 31 openly keeps away from one side of box 1 and all inserts and be equipped with a plurality of first bolts 32, two fixedly connected with backplate 34 between the back of curb plate 31, the front of backplate 34 contacts with the back of box 1, two fixedly connected with bottom plate 35 between the lower extreme of curb plate 31, the upper end of bottom plate 35 and the lower extreme of box 1 contact, are convenient for place box 1.
The fixing mechanism 4 includes a fixing plate 41, the back of the fixing plate 41 is fixedly connected to the inner side wall of the second cavity 8, a baffle 45 is fixedly connected to the upper end and the lower end of one side of the front of the fixing plate 41 close to the air duct 2, a groove 42 is formed in the middle of the front of the fixing plate 41, a plurality of first compression springs 43 are fixedly connected to the bottom of the groove 42, a pressing plate 44 is fixedly connected to the other ends of the first compression springs 43, movable plates 47 are movably connected to the middle of the upper end and the lower end of the front of the fixing plate 41 through first hinges 46, the movable plates 47 are all of an L-shaped structure, and one ends, far away from the fixing plate 41, of the movable plates 47 are all clamped to the methane detector 13, so that the methane detector 13 is conveniently clamped to the fixing plate 41.
Wherein, the clamping mechanism 5 comprises a clamping plate 51, the upper end and the lower end of the back surface of the clamping plate 51 are respectively provided with a clamping groove 54, the clamping grooves 54 are respectively in an arc structure, the inner side walls of the clamping grooves 54 are fixedly connected with fixing blocks 55, the back surfaces of the fixing blocks 55 are fixedly connected with second compression springs 56, the other end of the second compression spring 56 is fixedly connected with a fixture block 57, two fixture blocks 57 arranged on the same clamping plate 51 are respectively contacted with the oxygen sensor 15 and the temperature and humidity sensor 16, the upper end and the lower end of the clamping plate 51 are both fixedly connected with a first supporting plate 52, the front surface of the first supporting plate 52 is inserted with a third bolt 53, the third bolts 53 all penetrate through the first support plate 52 and are in threaded connection with the inner side wall of the third cavity 9, so that the oxygen sensor 15 and the temperature and humidity sensor 16 are conveniently clamped on the inner side wall of the third cavity 9.
The protection mechanism 6 comprises a protection cover 61, the protection cover 61 is arranged in a hollow mode, the protection cover 61 is located on the front face of the side plate 31 on the same side, the protection cover 61 is inserted in the air outlet 25, one side, close to the box body 1, of the protection cover 61 is arranged in an opening mode, a plurality of air holes 62 are formed in one side, away from the box body 1, of the protection cover 61, second support plates 63 are fixedly connected to the upper end and the lower end of the protection cover 61, fourth bolts 64 are inserted into the second support plates 63, the fourth bolts 64 penetrate through the second support plates 63 and are connected to the outer side wall of the box body 1 in a threaded mode, and insects can be prevented from entering the air duct 2.
Wherein, one side lateral wall that second cavity 8 is close to wind channel 2 inlays and is equipped with first sealing washer 14, prevents the inside of air admission second cavity 8, the sense terminal of marsh gas detector 13 passes first sealing washer 14 and extends to the inside in wind channel 2, one side lateral wall that third cavity 9 is close to wind channel 2 inlays and is equipped with two second sealing washers 17, prevents the inside of air admission third cavity 9, oxygen sensor 15 and temperature and humidity sensor 16 are corresponding with two second sealing washers 17 respectively, oxygen sensor 15 and temperature and humidity sensor 16's sense terminal all passes corresponding second sealing washer 17 and extends to the inside in wind channel 2, and marsh gas detector 13, oxygen sensor 15 and temperature and humidity sensor 16 of being convenient for detect marsh gas concentration, oxygen concentration and humiture in the air in wind channel 2.
The upper end of one side of the box body 1, which is far away from the air outlet 25, is inserted with a guide pipe 20, the guide pipe 20 is positioned on the front face of the side plate 31 on the same side, the guide pipe 20 is communicated with the fourth cavity 10, an external lead 21 is arranged inside the guide pipe 20, a rubber ring is arranged between the outer side wall of the external lead 21 and the inner side wall of the guide pipe 20, one end of the external lead 21 extends into the fourth cavity 10 and is electrically connected with the storage battery 18, and the external lead 21 can communicate the storage battery 18 with an external power supply, so that the power supply is provided for the work of the invention.
The storage battery 18 and the controller 19 are fixedly connected inside the fourth cavity 10, the signal transceiver 22 is fixedly connected to the upper end of the box body 1, and data detected by the methane detector 13, the oxygen sensor 15 and the temperature and humidity sensor 16 are conveniently sent to a monitoring terminal, so that workers can conveniently know the methane concentration, the oxygen concentration and the temperature and humidity in the cable trench in time, the suction fan 12, the methane detector 13, the oxygen sensor 15, the temperature and humidity sensor 16, the controller 19 and the signal transceiver 22 are electrically connected with the storage battery 18, power is conveniently provided for the work of the invention, and the suction fan 12, the methane detector 13, the oxygen sensor 15, the temperature and humidity sensor 16 and the signal transceiver 22 are electrically connected with the controller 19, so that the work of the invention is convenient.
Specifically, when the invention is used, the invention is moved to an installation place, the side plates 31 are fixed on the wall of the cable trench through the first bolts 32, then the box body 1 is clamped between the two side plates 31, the lower end of the box body 1 is abutted against the bottom plate 35, the back surface of the box body 1 is abutted against the back plate 34, the box body 1 is fixed between the two side plates 31 through the second bolts 33, the invention is communicated with an external power supply through the external lead 21, when the invention works, the suction fan 12 sucks air outside the box body 1 into the air duct 2 through the air pipe 11 and then discharges the air out of the box body 1 through the air outlet 25, in the process, the methane detector 13, the oxygen sensor 15 and the temperature and humidity sensor 16 detect the air in the air duct 2 and send the detected data to the controller 19, the controller 19 processes the data and sends the data to the monitoring terminal through the signal transceiver 22, the staff can know the methane concentration, the oxygen concentration and the temperature and humidity in the cable trench through the monitoring terminal, so as to realize the purpose of monitoring the gas in the cable trench, meanwhile, the protection cover 61 of the protection mechanism 6 can prevent insects from entering the interior of the air duct 2, when the methane detector 13, the oxygen sensor 15 and the temperature and humidity sensor 16 are maintained, the box doors 24 corresponding to the second cavity 8 and the third cavity 9 are opened, the methane detector 13 is extruded towards the direction close to the extrusion plate 44, the movable plate 47 is pulled down from the methane detector 13, the methane detector 13 is taken out from the air duct 2, the methane detector 13 can be dismounted, the third bolt 53 is dismounted, the clamping plate 51 is dismounted from the oxygen sensor 15 and the temperature and humidity sensor 16, the oxygen sensor 15 and the temperature and humidity sensor 16 are taken out from the interior of the air duct 2, and the oxygen sensor 15 and the temperature and humidity sensor 16 can be dismounted, and then, referring to the above steps, the reverse operation is performed, the new methane detector 13, the new oxygen sensor and the new temperature and humidity sensor 16 are respectively installed back to the original positions, and the box door 24 is closed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The cable trench gas monitoring equipment comprises a box body (1) and is characterized in that an installation mechanism (3) is arranged on the box body (1), an air channel (2) is arranged on one side of the interior of the box body (1), a first cavity (7), a second cavity (8), a third cavity (9) and a fourth cavity (10) are sequentially arranged on the other side of the interior of the box body (1) from bottom to top, an air pipe (11) is fixedly connected to the interior of the first cavity (7), one end, far away from the air channel (2), of the air pipe (11) penetrates through the side wall of the first cavity (7) and extends to the exterior of the box body (1), one end, close to the air channel (2), of the air pipe (11) penetrates through the side wall of the first cavity (7) and extends to the interior of the air channel (2), one end, far away from the air channel (2), of the interior of the air pipe (11) is fixedly connected with a suction fan (12), a fixing mechanism (4) is arranged inside the second cavity (8), a methane detector (13) is clamped on the fixing mechanism (4), an oxygen sensor (15) and a temperature and humidity sensor (16) are clamped inside the third cavity (9) through two clamping mechanisms (5), three box doors (24) are movably connected to the front side of the box body (1) through second hinges (23), the three box doors (24) respectively correspond to the second cavity (8), the third cavity (9) and the fourth cavity (10), an air outlet (25) is formed in the upper end of one side of the box body (1), the air outlet (25) is communicated with the air duct (2), and a protection mechanism (6) is inserted into the air outlet (25);
the mounting mechanism (3) comprises two side plates (31), the two side plates (31) are detachably connected to two opposite sides of the box body (1) through a plurality of second bolts (33), a plurality of first bolts (32) are inserted into one side, far away from the box body (1), of the front surfaces of the two side plates (31), a back plate (34) is fixedly connected between the back surfaces of the two side plates (31), the front surface of the back plate (34) is in contact with the back surface of the box body (1), a bottom plate (35) is fixedly connected between the lower ends of the two side plates (31), and the upper end of the bottom plate (35) is in contact with the lower end of the box body (1);
the fixing mechanism (4) comprises a fixing plate (41), the back of the fixing plate (41) is fixedly connected to the inner side wall of the second cavity (8), the upper end and the lower end of one side, close to the air duct (2), of the front of the fixing plate (41) are fixedly connected with baffle plates (45), a groove (42) is formed in the middle of the front of the fixing plate (41), a plurality of first compression springs (43) are fixedly connected to the bottom of the groove (42), the other ends of the first compression springs (43) are fixedly connected with a squeezing plate (44) together, movable plates (47) are movably connected to the middle of the upper end and the lower end of the front of the fixing plate (41) through first hinges (46), the movable plates (47) are of an L-shaped structure, and one ends, far away from the fixing plate (41), of the movable plates (47) are clamped on the methane detector (13);
the clamping mechanism (5) comprises a clamping plate (51), the upper end and the lower end of the back surface of the clamping plate (51) are respectively provided with a clamping groove (54), the clamping grooves (54) are all arc-shaped structures, the inner side walls of the clamping grooves (54) are all fixedly connected with fixing blocks (55), the back of the fixed block (55) is fixedly connected with a second compression spring (56), the other end of the second compression spring (56) is fixedly connected with a fixture block (57), two fixture blocks (57) arranged on the same fixture plate (51) are respectively contacted with the oxygen sensor (15) and the temperature and humidity sensor (16), the upper end and the lower end of the clamping plate (51) are both fixedly connected with a first support plate (52), third bolts (53) are inserted into the front surfaces of the first support plates (52), and the third bolts (53) penetrate through the first support plates (52) and are in threaded connection with the inner side walls of the third cavities (9);
the protection mechanism (6) comprises a protection cover (61), the protection cover (61) is arranged in a hollow mode, the protection cover (61) is located on the front face of the side plate (31) on the same side, the protection cover (61) is inserted into the air outlet (25), one side, close to the box body (1), of the protection cover (61) is provided with an opening, a plurality of air holes (62) are formed in one side, away from the box body (1), of the protection cover (61), the upper end and the lower end of the protection cover (61) are fixedly connected with second support plates (63), fourth bolts (64) are inserted into the second support plates (63), and the fourth bolts (64) penetrate through the second support plates (63) and are connected to the outer side wall of the box body (1) in a threaded mode;
second cavity (8) are close to one side lateral wall in wind channel (2) and inlay and are equipped with first sealing washer (14), the sense terminal of marsh gas detector (13) passes first sealing washer (14) and extends to the inside in wind channel (2), one side lateral wall that third cavity (9) are close to wind channel (2) inlays and is equipped with two second sealing washers (17), oxygen sensor (15) and temperature and humidity sensor (16) are corresponding with two second sealing washers (17) respectively, the sense terminal of oxygen sensor (15) and temperature and humidity sensor (16) all passes corresponding second sealing washer (17) and extends to the inside in wind channel (2).
2. The cable trench gas monitoring device according to claim 1, wherein a guide pipe (20) is inserted into an upper end of one side of the box body (1) far away from the air outlet (25), the guide pipe (20) is located on a front side of the side plate (31) on the same side, the guide pipe (20) is communicated with the fourth cavity (10), an external lead (21) is arranged inside the guide pipe (20), a rubber ring is arranged between an outer side wall of the external lead (21) and an inner side wall of the guide pipe (20), and one end of the external lead (21) extends into the fourth cavity (10) and is electrically connected with the storage battery (18).
3. The cable trench gas monitoring device according to claim 1, wherein a storage battery (18) and a controller (19) are fixedly connected to the inside of the fourth cavity (10), a signal transceiver (22) is fixedly connected to the upper end of the box body (1), the suction fan (12), the biogas detector (13), the oxygen sensor (15), the temperature and humidity sensor (16), the controller (19) and the signal transceiver (22) are electrically connected to the storage battery (18), and the suction fan (12), the biogas detector (13), the oxygen sensor (15), the temperature and humidity sensor (16) and the signal transceiver (22) are electrically connected to the controller (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878068.2A CN110609122B (en) | 2019-09-17 | 2019-09-17 | Cable pit gas monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910878068.2A CN110609122B (en) | 2019-09-17 | 2019-09-17 | Cable pit gas monitoring equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110609122A CN110609122A (en) | 2019-12-24 |
| CN110609122B true CN110609122B (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910878068.2A Active CN110609122B (en) | 2019-09-17 | 2019-09-17 | Cable pit gas monitoring equipment |
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| Country | Link |
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| CN111750928A (en) * | 2020-06-16 | 2020-10-09 | 国网上海市电力公司 | Cable channel comprehensive monitoring device |
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