Insecticide leakage detection gas pool and detection equipment

Abstract

The utility model discloses an insecticide leakage detection gas pool and detection equipment, the detection equipment comprises a detection gas pool, the detection gas pool comprises a pool body, and a top cover and a base which are detachably connected with the pool body in a sealing manner; the incident end of the gas pool is provided with an incident end cover which is detachably and hermetically connected with a pool body, the incident end cover is provided with an incident hole, the inner side of the incident end cover is provided with a first cavity mirror which is detachably connected with the incident end cover, the first cavity mirror is provided with a first via hole which is matched with the incident hole, and the outer side of the incident hole is provided with an incident mirror; the emergent end of the cell body is provided with an emergent end cover which is detachably and hermetically connected with the cell body, the emergent end cover is provided with an emergent hole, the inner side of the emergent end cover is provided with a second cavity mirror which is detachably connected with the emergent end cover, the second cavity mirror is provided with a second via hole which is matched with the emergent hole, and the outer side of the emergent hole is provided with an emergent mirror; a gas inlet and a gas outlet which are communicated with the interior of the gas pool are formed in the side wall of the pool body.

Description

Technical Field

[0001] The utility model relates to the field of gas detection, in particular to a gas cell and detection equipment for detecting pesticide leakage. Background Art

[0002] During the continuous use of the pesticide leak detection equipment, the gas particles in the pesticide will inevitably adhere to the cavity mirror surface, which will affect or even reduce the accuracy of the detection. To ensure the detection effect, it is necessary to pay attention to the cleanliness of the cavity mirror and perform a certain degree of cleaning when necessary. Utility Model Content

[0003] The purpose of the utility model is to provide a pesticide leakage detection gas cell and detection equipment to solve the existing problems.

[0004] To solve the above technical problems, in a first aspect, the present invention provides an insecticide leakage detection gas cell comprising a cell body, and a top cover and a base detachably and hermetically connected to the cell body;

[0005] The incident end of the gas pool is provided with an incident end cover which is detachably sealed with the pool body, the incident end cover is provided with an incident hole, the inner side of the incident end cover is provided with a first cavity mirror which is detachably connected with the incident end cover, the first cavity mirror is provided with a first through hole which matches the incident hole, and the outer side of the incident hole is provided with an incident mirror;

[0006] The output end of the cell body is provided with an output end cover detachably sealed with the cell body, the output end cover is provided with an output hole, the inner side of the output end cover is provided with a second cavity mirror detachably connected to the output end cover, the second cavity mirror is provided with a second through hole matching the output hole, and the outer side of the output hole is provided with an output mirror;

[0007] An air inlet and an air outlet communicated with the interior of the gas pool are provided on the side wall of the gas pool.

[0008] Furthermore, the pool body is square, and the top and bottom of the four side walls of the pool body are respectively provided with several first mounting holes, and the top cover and the base are respectively provided with several second mounting holes that match the first mounting holes. The pool body is fixedly connected to the top cover and the base by first fasteners that match the first mounting holes and the second mounting holes respectively; a first sealing ring is respectively provided between the pool body and the top cover and the base.

[0009] Furthermore, the incident end cover is provided with a plurality of curved waist-shaped holes arranged along the edge of the incident end cover, and the incident end of the pool body is provided with a plurality of third mounting holes arranged along the circumference of the incident end cover. The incident end cover is fixedly connected by second fasteners respectively cooperating with the curved waist-shaped holes and the third mounting holes, and a second sealing ring is provided between the incident end cover and the pool body.

[0010] Furthermore, the incident mirror is fixed on the outside of the incident hole through the incident mirror mounting seat; the incident mirror mounting seat is annular, and the incident mirror is fixed in the annular hole of the incident mirror mounting seat; the incident mirror mounting seat is detachably sealed and mounted on the outside of the incident hole.

[0011] Furthermore, an air nozzle communicating with the interior of the air pool is respectively provided at both ends of the side wall of the pool body, and the air jets of the air nozzle are respectively arranged to face the first cavity mirror and the second cavity mirror.

[0012] Furthermore, a detachable sealing plug is provided in the gas nozzle.

[0013] Furthermore, the incident end cover and the first cavity mirror, as well as the output end cover and the second cavity mirror, are bonded together by re-bonding adhesive.

[0014] In a second aspect, the present invention provides an insecticide leakage detection device, comprising a housing and the gas cell provided in the first aspect; a mounting groove is provided on one side of the housing, and the gas cell is detachably mounted in the mounting groove; a laser is provided at the incident end of the gas cell, and a photoelectric detector is provided at the exit end of the gas cell; laser light emitted by the laser enters the interior of the gas cell through the incident hole of the gas cell, is reflected by the first cavity mirror and the second cavity mirror in the gas cell, and then is emitted from the exit hole of the gas cell and irradiates the photoelectric detector.

[0015] Furthermore, fixing plates are provided on both sides of the bottom of the gas pool, and the fixing plates are fixed in the mounting grooves by third fasteners.

[0016] Furthermore, a handle is provided on both sides of the box body.

[0017] The beneficial effects of the utility model are:

[0018] 1. The top cover of the gas pool is detachably connected to the pool body, which allows the top cover to be removed after a period of operation to clean the cavity mirror in the gas pool. In addition, the inlet / outlet end cover of the gas pool is detachably connected to the pool body, and the first / second cavity mirror is detachably connected to the inlet / outlet end cover. When impurities on the cavity mirror cannot be removed by wiping, the cavity mirror can be removed for cleaning or replaced with a new one.

[0019] 2. By setting up the air nozzle, the fine impurities on the cavity mirror can be removed by blowing, which reduces the chance of scratching the optical device during the actual cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to represent the same or similar parts. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1It is a front view of an embodiment of the utility model.

[0022] Figure 2 This is a top view of an embodiment of the present invention.

[0023] Figure 3 This is a side view of an air pool according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the internal structure of the incident end cover according to one embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of an embodiment of the present invention.

[0026] Among them: 1. Laser; 2. Gas pool; 21. Pool body; 22. Top cover; 23. Air inlet; 231. Exhaust port; 24 / 241. Gas nozzle; 25. Incident end cover; 251. Incident port; 252. Curved waist hole; 253. First cavity mirror; 26. Incident mirror; 27. Exit end cover; 28. Exit mirror; 29. Fixing plate; 3. Photodetector; 4. QCL controller; 5. TCP port; 6. Host computer; 7. Power driver module; 8. Power socket; 9. Handle. DETAILED DESCRIPTION

[0027] In the first aspect, the present invention provides an insecticide leakage detection gas cell, comprising a cell body 21 and a top cover 22 and a base detachably sealed to the cell body 21; the incident end of the gas cell 2 is provided with an incident end cover 25 detachably sealed to the cell body 21, the incident end cover 25 is provided with an incident hole, the inner side of the incident end cover 25 is provided with a first cavity mirror 253 detachably connected to the incident end cover 25, the first cavity mirror 253 is provided with a first through hole matching the incident hole, and an incident mirror 26 is provided on the outer side of the incident hole; the exit end of the cell body 21 is provided with an exit end cover 27 detachably sealed to the cell body 21, the exit end cover 27 is provided with an exit hole, the inner side of the exit end cover 27 is provided with a second cavity mirror detachably connected to the exit end cover 27, the second cavity mirror is provided with a second through hole matching the exit hole, and an exit mirror 28 is provided on the outer side of the exit hole; the side wall of the cell body 21 is provided with an air inlet 23 and an air outlet connected to the interior of the gas cell 2.

[0028] The air inlet 23 is located on the left side of the gas pool 2, and is used to allow the leaked gas to be tested to enter the gas pool 2 for concentration detection. The air outlet is located on the right side of the gas pool, and is used to discharge the leaked gas in the gas pool 2; the top cover 22 of the gas pool 2 is detachably connected to the pool body 21, and the top cover 22 can be removed after working for a period of time to clean the laparoscope in the gas pool 2; in addition, the inlet / outlet end cover 27 of the gas pool 2 is detachably connected to the pool body 21, and the first / second laparoscope is detachably connected to the inlet / outlet end cover 27, and the laparoscope can be removed for cleaning or replaced with a new one when impurities on the laparoscope cannot be removed by wiping.

[0029] According to one embodiment of the present application, the tank body 21 is square in shape, with a plurality of first mounting holes defined at the top and bottom of each of the four side walls of the tank body 21. The top cover 22 and the base each have a plurality of second mounting holes that mate with the first mounting holes. The tank body 21 is secured to the top cover 22 and the base with first fasteners that mate with the first and second mounting holes, respectively. A first sealing ring is provided between the tank body 21, the top cover 22, and the base, respectively. The use of fasteners (screws or bolts) to securely connect the tank body 21, the top cover 22, and the base provides good stability and facilitates disassembly.

[0030] According to one embodiment of the present application, the incident end cap 25 is provided with a plurality of curved waist-shaped holes 252 arranged along the edge of the incident end cap 25, and the incident end of the cell body 21 is provided with a plurality of third mounting holes arranged along the circumference of the incident end cap 25. The incident end cap 25 is fixedly connected by second fasteners that respectively cooperate with the curved waist-shaped holes 252 and the third mounting holes. A second sealing ring is provided between the incident end cap 25 and the cell body 21. Similarly, the use of fasteners (screws or bolts) to securely connect the cell body 21 and the incident end cap 25 provides good stability and easy disassembly. In addition, the provision of the curved waist-shaped holes 252 on the incident end cap 25 in the present application facilitates adjustment of the incident end cap 25 so that the incident hole on the incident end cap 25 is aligned with the incident laser.

[0031] According to one embodiment of the present application, the incident mirror 26 is fixed to the outside of the incident hole through the incident mirror 26 mounting seat; the incident mirror 26 mounting seat is annular, and the incident mirror 26 is fixed in the annular hole of the incident mirror 26 mounting seat; the incident mirror 26 mounting seat is detachably sealed and mounted on the outside of the incident hole.

[0032] According to one embodiment of the present application, a gas nozzle 24 / 241 is provided at each end of the side wall of the pool body 21, which is connected to the interior of the gas pool 2. The air jets of the gas nozzles 24 / 241 are respectively directed toward the first cavity mirror 253 and the second cavity mirror (i.e., the air jet of the gas nozzle 24 / 241 provided on the side of the first cavity mirror 253 is directed toward the first cavity mirror 253, and the air jet of the gas nozzle 24 / 241 provided on the side of the second cavity mirror is directed toward the second cavity mirror). When the detection equipment is not disassembled as a whole, an air pipe with an outer diameter of 8 mm is connected to the quick air nozzle 24 / 241. When installing the air pipe, the air nozzle 24 / 241 can be directly connected. Dry nitrogen / air is continuously / intermittently fed in at high speed / low speed to remove fine impurities on the cavity mirror, thereby reducing the chance of scratching the optical device during the actual cleaning process. When performing the purging work, the blowing work can be performed on one side or on both sides at the same time, depending on the cleanliness of the cavity mirror surface, and purging is performed as needed.

[0033] According to one embodiment of the present application, a detachable sealing plug is provided in the air nozzle 24 / 241 to prevent.

[0034] According to one embodiment of the present application, the incident end cap 25 and the first cavity mirror 253, as well as the exit end cap 27 and the second cavity mirror, are bonded together with re-adhesive adhesive. Disassembly requires only a slight force to separate the cavity mirrors from the exit / incident end caps 25. After separation, the new cavity mirrors are installed into the exit / incident end caps 25. Ensure that the holes in the cavity mirrors align with the holes in the exit / incident end caps 25 to prevent deviation of the light path when it enters the gas pool 2.

[0035] In a second aspect, the present invention provides a pesticide leak detection device comprising a housing and the gas cell 2 disclosed in the first aspect above. A mounting slot is provided on one side of the housing, into which the gas cell 2 is removably mounted. A laser 1 is provided at the incident end of the gas cell 2, and a photodetector 3 is provided at the exit end of the gas cell 2. Laser light emitted by the laser 1 enters the interior of the gas cell 2 through the incident port of the gas cell 2, is reflected by a first cavity mirror 253 and a second cavity mirror within the gas cell 2, and then is emitted from the exit port of the gas cell 2 and irradiates the photodetector 3. The laser 1 can be a quantum cascade laser 1 (QCL). The quantum cascade laser 1 and the photodetector 3 are connected to a host computer 6 via a QCL controller 4. The photodetector 3 converts the detected optical signal into an electrical signal and transmits it to a control system. The control system is connected to the host computer via a TCP port 5, which transmits the data to the host computer via TCP for analysis. The entire device is powered by a power socket 8 and a power driver module 7.

[0036] According to one embodiment of the present application, fixing plates 29 are provided on both sides of the bottom of the gas pool 2. The fixing plates 29 are fixed in the mounting groove by third fasteners. The fixing plates 29 are integrally formed with the bottom wall of the pool body 21 and then fixed to the bottom wall of the mounting groove by bolts or screws.

[0037] According to one embodiment of the present application, a handle 9 is provided on both sides of the box to facilitate the transportation of the detection equipment.

[0038] When removing the top wall of gas cell 2 to clean the cavity mirror, the cleaning process should be performed in the cleanest available area after slowly removing the insecticide detection device from the cabinet while the power is off. Appropriate equipment, such as disposable latex gloves or finger cots, must be worn at all times to prevent oil transfer to the optical components. Cleaning the optical components requires a non-woven cloth and reagent-grade acetone. The acetone must be fresh to avoid leaving any marks on the optical components. Reagent-grade isopropyl alcohol can also be used in place of acetone. Avoid touching the optical surfaces with unprotected fingers! Always wear disposable latex gloves or finger cots.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pesticide leak detection gas cell, characterized in that: It comprises a pool body and a top cover and a base which are detachably sealed to the pool body; The incident end of the gas pool is provided with an incident end cover that is detachably sealed with the pool body, the incident end cover is provided with an incident hole, the inner side of the incident end cover is provided with a first cavity mirror that is detachably connected to the incident end cover, the first cavity mirror is provided with a first through hole that matches the incident hole, and the outer side of the incident hole is provided with an incident mirror; The output end of the cell body is provided with an output end cover detachably sealed with the cell body, the output end cover is provided with an output hole, the inner side of the output end cover is provided with a second cavity mirror detachably connected to the output end cover, the second cavity mirror is provided with a second through hole matching the output hole, and the outer side of the output hole is provided with an output mirror; An air inlet and an air outlet communicated with the interior of the gas pool are provided on the side wall of the pool body.

2. The pesticide leak detection gas cell according to claim 1, characterized in that: The pool body is square, and the top and bottom of the four side walls of the pool body are respectively provided with a plurality of first mounting holes, and the top cover and the base are respectively provided with a plurality of second mounting holes that match the first mounting holes. The pool body is fixedly connected to the top cover and the base by first fasteners that match the first mounting holes and the second mounting holes respectively; a first sealing ring is respectively provided between the pool body and the top cover and the base.

3. The pesticide leak detection gas cell according to claim 2, characterized in that: The incident end cover is provided with a plurality of curved waist-shaped holes arranged along the edge of the incident end cover, and the incident end of the pool body is provided with a plurality of third mounting holes arranged along the circumference of the incident end cover. The incident end cover is fixedly connected by second fasteners respectively cooperating with the curved waist-shaped holes and the third mounting holes, and a second sealing ring is provided between the incident end cover and the pool body.

4. The pesticide leak detection gas cell according to claim 3, characterized in that: The incident mirror is fixed on the outside of the incident hole through an incident mirror mounting seat; the incident mirror mounting seat is annular, and the incident mirror is fixed in the annular hole of the incident mirror mounting seat; the incident mirror mounting seat is detachably sealed and mounted on the outside of the incident hole.

5. The pesticide leak detection gas cell according to claim 1, characterized in that: An air nozzle communicating with the interior of the air pool is respectively provided at both ends of the side wall of the pool body, and the air jets of the air nozzle are respectively arranged to face the first cavity mirror and the second cavity mirror.

6. The pesticide leak detection gas cell according to claim 5, characterized in that: A detachably connected sealing plug is provided in the gas nozzle.

7. The pesticide leak detection gas cell according to claim 1, characterized in that: The incident end cover and the first cavity mirror, as well as the exit end cover and the second cavity mirror, are all adhered together by re-adhesive glue.

8. A pesticide leakage detection device, characterized in that: It comprises a box body and the gas pool described in any one of claims 1-7; a mounting groove is provided on one side of the box body, and the gas pool is detachably mounted in the mounting groove; a laser is provided at the incident end of the gas pool, and a photodetector is provided at the exit end of the gas pool; the laser light emitted by the laser enters the interior of the gas pool through the incident hole of the gas pool, is reflected by the first cavity mirror and the second cavity mirror in the gas pool, and then is emitted from the exit hole of the gas pool and irradiates the photodetector.

9. The pesticide leakage detection device according to claim 8, characterized in that: Fixed plates are provided on both sides of the bottom of the gas pool, and the fixed plates are fixed in the mounting grooves by third fasteners.

10. The pesticide leakage detection device according to claim 8, characterized in that: A handle is provided on both sides of the box body.

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