An integrated gas sensor for special gas delivery

Abstract

The present invention belongs to the technical field of electronic device manufacturing, and in particular, relates to a special gas delivery integrated gas sensor, including a delivery pipe, one end of the delivery pipe is fixedly connected to an air inlet pipe, the interior of the air inlet pipe is fixedly connected to a mounting plate, a rotating drum is rotatably connected to the mounting plate, a fan blade for monitoring the flow rate of the special gas is fixedly connected to the peripheral side wall of the rotating drum, and an electrochemical sensor for detecting the special gas is provided inside the air inlet pipe; a flow rate regulating mechanism is used to adaptively adjust the flow rate of the special gas, and the flow rate regulating mechanism includes a liquid guide cavity opened inside the mounting plate. The present invention sets a flow rate regulating mechanism, when the flow rate of the special gas is too fast, the flow rate of the special gas is reduced when passing through two baffles, and when the flow rate of the special gas is too slow, the flow rate of the special gas is increased when passing through two baffles, so as to avoid the situation where the flow rate of the special gas is too large or too small during the delivery process, and improve the measurement accuracy of the special gas.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic device manufacturing, and in particular relates to a special gas transport integrated gas sensor. Background Art

[0002] The integrated gas sensor for special gas delivery is a sensor used to monitor and detect the concentration of specific gases. It integrates the gas sensor and the gas delivery system in one unit to automatically transmit, sample and detect gases during the monitoring process. Because it combines the gas sensor and the gas delivery system, it can efficiently and accurately detect and monitor the concentration of specific gases, so it is widely used in many fields such as industry, environmental protection, safety monitoring, and medical treatment.

[0003] However, the existing integrated gas sensors for special gas delivery usually have the following technical problems when delivering and detecting special gases:

[0004] In the process of conveying special gases, the special gas flow rate cannot be adjusted adaptively, resulting in the flow rate of special gases being too high or too low during the conveying and detection process. When the special gas flow rate is too fast, the contact time between the special gas and the sensor becomes shorter, resulting in the sensor being unable to fully identify the concentration change of the gas. When the special gas flow rate is too slow, the gas will stay around the sensor for a long time, causing sensor saturation or response lag. The special gas flow rate is too fast or too slow, which will affect the measurement results and reduce the measurement accuracy.

[0005] During the transportation of special gases, the gas concentration may become uneven, and gas sensors usually need to work in a uniform gas environment, resulting in the sensor being unable to accurately detect the concentration of the target gas. Summary of the invention

[0006] The purpose of the present invention is to provide an integrated gas sensor for special gas transportation that can buffer the special gas when the special gas flow rate is too fast, and accelerate the special gas when the special gas flow rate is too slow, in response to the problems raised in the above background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A special gas transport integrated gas sensor, comprising:

[0009] A delivery pipe, one end of which is fixedly connected to an air intake pipe, a mounting plate is fixedly connected to the inside of the air intake pipe, a rotating drum is rotatably connected to the mounting plate, a fan blade for monitoring the flow rate of special gases is fixedly connected to the peripheral side wall of the rotating drum, and an electrochemical sensor for detecting special gases is arranged inside the air intake pipe;

[0010] A flow rate regulating mechanism is used to adaptively adjust the flow rate of the special gas. The flow rate regulating mechanism includes a liquid guiding cavity opened inside the mounting plate, the liquid guiding cavity is connected to the inside of the rotating drum, control cylinders are fixedly connected to both side walls of the air inlet pipe, a baffle block is airtightly and slidably connected inside the control cylinder, a hydraulic telescopic rod is fixedly connected to the outer wall of the control cylinder, the output end of the hydraulic telescopic rod is fixedly connected to the baffle block, and a hydraulic control assembly is provided on the rotating drum.

[0011] Preferably, the hydraulic control assembly includes a control block fixedly connected to one end of the rotating cylinder, a fluid infusion tube is fixedly connected between the hydraulic telescopic rod and the fluid guiding cavity, a control cavity connected to the interior of the rotating cylinder is opened inside the control block, a plurality of control grooves distributed in a circumferential array are opened on the inner circumferential wall of the control cavity, a piston block is airtightly and slidably connected in each of the control grooves, a first spring is provided between the piston block and the inner wall of the control groove, a liquid storage space is formed inside the control groove, the control cavity, the rotating cylinder, the fluid guiding cavity, the fluid infusion tube and the hydraulic telescopic rod, and the liquid storage space is filled with hydraulic oil.

[0012] Preferably, a stirring mechanism is also provided inside the air inlet pipe for stirring and mixing the special gas before it contacts the electrochemical sensor. The stirring mechanism includes a support rod fixedly connected to the control block, one end of the support rod away from the control block is fixedly connected to a limiting block, and two movable blocks are slidably connected to the support rod in a horizontal direction, and an elastic spiral rod is fixedly connected between the two movable blocks.

[0013] Preferably, a stirring amplitude control mechanism is also provided in the control block, which is used to adjust the coverage range of the elastic spiral rod according to the flow rate of the special gas. The stirring amplitude control mechanism includes a varistor fixedly connected to the inner wall of one of the control grooves, and the varistor is fixedly connected to the first spring. A second spring is provided between the control block, the limit block and the corresponding position moving block. An annular electromagnet is provided on one side wall of the two moving blocks close to each other. When the two annular electromagnets are energized, opposite poles attract each other, and the two annular electromagnets are connected in series with the power supply device through the varistor.

[0014] Preferably, a strip-shaped limiting groove is fixedly connected to the support rod, and limiting blocks are fixedly connected to the two moving blocks, and the limiting blocks are slidably connected to the inner wall of the strip-shaped limiting groove.

[0015] Preferably, the elastic spiral rod is made of superelastic material.

[0016] Preferably, a rotating mechanism controlled by a rotating drum is also provided inside the air intake pipe, which is used to improve the comprehensiveness of the electrochemical sensor in detecting special gases. The rotating mechanism includes a fixed block fixedly connected to the inside of the rotating drum, an extension rod is fixedly connected to the fixed block, the extension rod passes through the mounting plate and extends to the position on the other side of the blocking block and is fixedly connected to a slide rail, a slider is linearly slidably connected to the slide rail, the electrochemical sensor is fixedly connected to the slider, and the extension rod is also provided with a driving component for the position of the slider on the slide rail.

[0017] Preferably, the driving assembly includes a fixed ring fixedly connected to the extension rod, a movable ring movably installed on the extension rod, two limit rods fixedly connected to the movable ring, two limit holes used in conjunction with the limit rods are provided on the fixed ring, a sleeve is rotatably connected to the side wall of the movable ring, a reciprocating threaded section is provided on the rod body of the extension rod away from the mounting plate, the sleeve threadably cooperates with the reciprocating threaded section, an articulated seat is provided on the movable ring and the slider, a connecting rod is hinged between the two articulated seats, a sliding rod is fixedly connected to the sleeve, a strip groove is provided on the inner wall of the intake pipe, and the sliding rod is slidably connected to the inner wall of the strip groove.

[0018] Compared with existing technologies, the advantages of Bentgas integrated gas sensors are:

[0019] The present invention provides a flow rate regulating mechanism. During the process of conveying the special gas, the impact force generated during the conveying of the special gas will drive the fan blades and the rotating drum to rotate. When the flow rate of the special gas is too fast, the rotation speed of the rotating drum and the control block is faster, thereby increasing the cross-sectional area of ​​the special gas conveying channel formed between the two blocking blocks and the inner wall of the air inlet pipe and making it larger than the cross-sectional area of ​​the air inlet pipe itself, so that the flow rate of the special gas is reduced when passing through the two blocking blocks. When the flow rate of the special gas is too slow, the cross-sectional area of ​​the special gas conveying channel formed between the two blocking blocks and the inner wall of the air inlet pipe is reduced and is smaller than the cross-sectional area of ​​the air inlet pipe itself, so that the flow rate of the special gas is increased when passing through the two blocking blocks, thereby avoiding the situation where the flow rate of the special gas is too large or too small during the conveying process, and improving the measurement accuracy of the special gas.

[0020] The present invention provides a stirring mechanism, and while the rotating drum drives the control block to rotate, it will also drive the support rod to rotate synchronously, so that the two moving blocks on the support rod drive the elastic spiral rod to rotate, and the special gas is evenly mixed before it contacts the electrochemical sensor, thereby ensuring the uniformity of the gas concentration.

[0021] The present invention provides a stirring amplitude control mechanism. During the process of stirring the special gas by the elastic screw rod, the stirring coverage range of the elastic screw rod for the special gas will change with the flow rate of the special gas: when the flow rate of the special gas is faster, the two moving blocks are able to compress the elastic screw rod, and the elastic screw rod shows an increase in spiral diameter, thereby increasing the coverage range of the elastic screw rod when stirring the special gas and improving the mixing effect of the special gas; when the flow rate of the special gas is slower, the two moving blocks stretch the elastic screw rod, and the elastic screw rod shows a decrease in spiral diameter, thereby reducing the coverage range of the elastic screw rod when stirring the special gas and reducing the mixing effect of the special gas.

[0022] The present invention sets a rotating mechanism. During the process of conveying the special gas, the rotation of the rotating drum will drive the extension rod to rotate synchronously, thereby driving the slide rail, the slider and the electrochemical sensor to rotate synchronously, and detecting the special gas from various angles. In this process, the reciprocating threaded section on the extension rod will cause the sleeve to reciprocate horizontally, pulling the movable ring to reciprocate horizontally relative to the fixed ring, so that the slider can slide reciprocatingly on the slide rail, thereby driving the electrochemical sensor to detect the special gas from various positions, thereby improving the comprehensiveness of the detection of the special gas and avoiding large errors caused by local detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0025] Figure 3 is a cross-sectional view of the control block in the present invention;

[0026] Figure 4 It is a partial structural schematic diagram of the stirring mechanism in the present invention;

[0027] Figure 5 It is a schematic diagram of the local structure of the driving component in the present invention.

[0028] In the figure: 1, delivery pipe; 11, air inlet pipe; 12, mounting plate; 13, rotating drum; 14, fan blade; 15, electrochemical sensor; 2, flow rate adjustment mechanism; 21, liquid guide cavity; 22, control cylinder; 23, shielding block; 24, hydraulic telescopic rod; 25, hydraulic control assembly; 251, control block; 252, infusion pipe; 253, control cavity; 254, control groove; 255, piston block; 256, first spring; 3, stirring mechanism; 31, support rod; 32, limit block; 33. Moving block; 34. Elastic spiral rod; 4. Stirring amplitude control mechanism; 41. Varistor; 42. Second spring; 43. Ring electromagnet; 5. Rotating mechanism; 51. Fixed block; 52. Extension rod; 53. Slide rail; 54. Slider; 55. Driving assembly; 551. Fixed ring; 552. Moving ring; 553. Limit rod; 554. Limit hole; 555. Sleeve; 556. Reciprocating threaded section; 557. Articulated seat; 558. Connecting rod; 559. Slide rod. DETAILED DESCRIPTION

[0029] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0030] Example: Refer to Figures 1 to 5 , a special gas delivery integrated gas sensor, comprising:

[0031] It should be noted in advance that this device is arranged on a side branch of the special gas trunk transmission pipeline through a two-position three-way valve and adopts intermittent detection. The unit detection time can be preset. It is particularly suitable for working scenarios where special gases are intermittently detected, and is conducive to maintenance, avoiding being on the trunk line for a long time and affecting the normal transportation of special gases.

[0032] A delivery pipe 1, one end of which is fixedly connected to an air intake pipe 11, a mounting plate 12 is fixedly connected inside the air intake pipe 11, a rotating drum 13 is rotatably connected to the mounting plate 12, a fan blade 14 for monitoring the flow rate of the special gas is fixedly connected to the peripheral side wall of the rotating drum 13, and an electrochemical sensor 15 for detecting the special gas is arranged inside the air intake pipe 11;

[0033] Specifically, the electrochemical sensor 15 measures the gas concentration by generating an electric current through the reaction between the gas and the electrochemical element, and is particularly suitable for detecting toxic gases such as carbon monoxide, hydrogen sulfide, ammonia, chlorine, etc.

[0034] The flow rate regulating mechanism 2 is used to adaptively adjust the flow rate of the special gas. The flow rate regulating mechanism 2 includes a liquid guide cavity 21 opened inside the mounting plate 12. The liquid guide cavity 21 is connected to the inside of the rotating drum 13. The two side walls of the air inlet pipe 11 are fixedly connected with a control cylinder 22. The inside of the control cylinder 22 is airtightly slidably connected with a shielding block 23. The outer wall of the control cylinder 22 is fixedly connected with a hydraulic telescopic rod 24. The output end of the hydraulic telescopic rod 24 is fixedly connected to the shielding block 23. The rotating drum 13 is provided with a hydraulic control component 25;

[0035] The hydraulic control assembly 25 includes a control block 251 fixedly connected to one end of the rotating cylinder 13, a liquid infusion tube 252 fixedly connected between the hydraulic telescopic rod 24 and the liquid guiding cavity 21, a control cavity 253 connected to the interior of the rotating cylinder 13 is provided inside the control block 251, and a plurality of control grooves 254 distributed in a circumferential array are provided on the inner circumferential wall of the control cavity 253, each control groove 254 is airtightly slidably connected with a piston block 255, and a first spring 256 is provided between the piston block 255 and the inner wall of the control groove 254, and a liquid storage space is formed inside the control groove 254, the control cavity 253, the rotating cylinder 13, the liquid guiding cavity 21, the liquid infusion tube 252 and the hydraulic telescopic rod 24, and the liquid storage space is filled with hydraulic oil.

[0036] In view of the problem in the prior art that the flow rate of the special gas cannot be adaptively adjusted during the transportation of the special gas, resulting in the flow rate of the special gas being too high or too low during the transportation and detection process, the present invention sets a flow rate adjustment mechanism 2. During the transportation of the special gas, the impact force generated during the transportation of the special gas will drive the fan blades 14 and the rotating drum 13 to rotate, and the rotation speeds of the fan blades 14 and the rotating drum 13 are as follows:

[0037] When the flow rate of the special gas is too fast, the rotation speed of the drum 13 and the control block 251 is faster, so that the centrifugal force of the piston block 255 in the control groove 254 is larger, so that the piston block 255 is displaced toward the inside of the control groove 254, so that more hydraulic oil in the control chamber 253 enters the inside of the control groove 254, and further the hydraulic oil in the hydraulic telescopic rod 24 enters the control chamber 253 through the infusion tube 252, the liquid guide chamber 21 and the drum 13, so that the hydraulic telescopic rod 24 contracts, the distance between the two blocking blocks 23 increases, and the cross-sectional area of ​​the special gas delivery channel formed between the two blocking blocks 23 and the inner wall of the air inlet pipe 11 increases and is larger than the cross-sectional area of ​​the air inlet pipe 11 itself, so that the special gas is buffered when passing through the two blocking blocks 23, so that the flow rate of the special gas is reduced when passing through the two blocking blocks 23, so as to avoid that the contact time between the special gas and the electrochemical sensor 15 is too short, resulting in the electrochemical sensor 15 being unable to fully identify the concentration change of the gas;

[0038] When the flow rate of the special gas is too slow, the rotation speed of the drum 13 and the control block 251 is slow, the centrifugal force of the piston block 255 is small, and it is displaced toward the inside of the control chamber 253 under the elastic force of the first spring 256, so that the hydraulic oil in the control groove 254 enters the inside of the control chamber 253, thereby extending the hydraulic telescopic rod 24, reducing the distance between the two blocking blocks 23, and reducing the cross-sectional area of ​​the special gas delivery channel formed between the two blocking blocks 23 and the inner wall of the intake pipe 11. The cross-sectional area is smaller than the cross-sectional area of ​​the intake pipe 11 itself, so that the special gas is accelerated when passing through the two blocking blocks 23, thereby increasing the flow rate of the special gas when passing through the two blocking blocks 23, avoiding the special gas from staying around the electrochemical sensor 15 for a long time, causing the electrochemical sensor 15 to be saturated or responding lag;

[0039] This can avoid the situation where the flow rate of special gases is too high or too low during the transportation process, and improve the measurement accuracy of special gases.

[0040] A stirring mechanism 3 is also provided inside the air inlet pipe 11, which is used to stir and mix the special gas before it contacts the electrochemical sensor 15. The stirring mechanism 3 includes a support rod 31 fixedly connected to the control block 251, and one end of the support rod 31 away from the control block 251 is fixedly connected to a limiting block 32. Two movable blocks 33 are slidably connected to the support rod 31 in a horizontal direction, and an elastic spiral rod 34 is fixedly connected between the two movable blocks 33.

[0041] In view of the problem in the prior art that the gas concentration may be uneven during the transportation of special gases, resulting in the sensor being unable to accurately detect the target gas concentration, the present invention provides a stirring mechanism 3. While the rotating drum 13 drives the control block 251 to rotate, it will also drive the support rod 31 to rotate, so that the two moving blocks 33 on the support rod 31 drive the elastic spiral rod 34 to rotate, and the special gases are evenly mixed before they come into contact with the electrochemical sensor 15, thereby ensuring the uniformity of the gas concentration.

[0042] A stirring amplitude control mechanism 4 is also provided in the control block 251, which is used to adjust the coverage range of the elastic spiral rod 34 according to the flow rate of the special gas. The stirring amplitude control mechanism 4 includes a varistor 41 fixedly connected to the inner wall of one of the control grooves 254. The varistor 41 is fixedly connected to the first spring 256. A second spring 42 is provided between the control block 251, the limit block 32 and the corresponding position moving block 33. An annular electromagnet 43 is provided on one side wall where the two moving blocks 33 are close to each other. When the two annular electromagnets 43 are energized, the opposite poles attract each other, and the two annular electromagnets 43 are connected in series with the power supply device through the varistor 41.

[0043] Specifically, a strip limit groove is fixedly connected to the support rod 31, and the two movable blocks 33 are fixedly connected to the limit blocks, and the limit blocks are slidably connected to the inner wall of the strip limit groove. The strip limit groove and the limit block can limit the movable block 33, thereby ensuring that the support rod 31 can always drive the movable block 33 and the elastic screw rod 34 to rotate during the rotation process, thereby ensuring the stirring effect of the special gas.

[0044] Specifically, the elastic spiral rod 34 is made of superelastic material, such as nickel-titanium alloy, which generally has the ability to restore its original shape within a certain strain range and does not rely on temperature to trigger deformation. The elastic spiral rod 34 made of nickel-titanium alloy will show an increase in spiral diameter when compressed, and a decrease in spiral diameter when stretched.

[0045] It is worth mentioning that, by setting the stirring amplitude control mechanism 4, in the process of stirring the special gas by the elastic screw rod 34, the stirring coverage of the special gas by the elastic screw rod 34 will change with the special gas flow rate, and the specific changes are as follows:

[0046] The working principle of the varistor 41 is based on the piezoelectric effect or mechanical effect of the material. When external pressure is applied to the surface of the varistor 41, the shape or internal structure of the material changes, causing its conductivity to change. These changes reduce the resistance value of the varistor 41.

[0047] The magnetic attraction between the two annular electromagnets 43 mainly comes from the magnetic field of their interaction. According to the principle of Lorentz force (magnetic force), the magnitude of the magnetic force is related to the magnetic field strength, distance and relative position between the two magnets. Therefore, when the current increases, the magnetic field strength generated by the annular electromagnet 43 increases, so the magnetic attraction between them will also increase.

[0048] When the characteristic gas flow rate is fast, a strong stirring speed is required to break the gas flow layer and make the gas mixed evenly as soon as possible. At this time, the rotation speed of the control block 251 is fast, and the centrifugal force of the piston block 255 increases accordingly. The piston block 255 moves toward the inner direction of the control groove 254, and the compression degree of the first spring 256 is large. Since the elastic force of the first spring 256 is proportional to its compression degree, the pressure applied by the first spring 256 to the varistor 41 is large, and the resistance value of the circuit where the varistor 41 is located is reduced. Since the varistor 41 is connected in series with the annular electromagnet 43, the annular electromagnet 43 is When the current in the circuit increases, the magnetic attraction between the two annular electromagnets 43 increases, so that the two moving blocks 33 can overcome the elastic force of the second spring 42 and move closer to each other, so that the two moving blocks 33 can compress the elastic spiral rod 34 when the flow rate of the special gas is fast, and the elastic spiral rod 34 shows a phenomenon of increased spiral diameter, thereby increasing the coverage of the elastic spiral rod 34 when stirring the special gas, improving the mixing effect of the special gas, avoiding the formation of uneven gas concentration distribution before the special gas contacts the electrochemical sensor 15, and ensuring that the electrochemical sensor 15 detects the real concentration of the special gas;

[0049] When the flow rate of the special gas is slow, the special gas itself is relatively uniform, and the intensity of stirring needs to be appropriately reduced to avoid affecting the gas concentration. At this time, the rotation speed of the control block 251 is slow, and the piston block 255 is displaced toward the inside of the control chamber 253. The compression degree of the first spring 256 is small, so that the pressure applied by the first spring 256 to the varistor 41 is small, so that the current in the circuit where the annular electromagnet 43 is located is reduced, thereby reducing the magnetic attraction between the two annular electromagnets 43, so that the two moving blocks 33 can stretch the elastic spiral rod 34 when the flow rate of the special gas is slow. The elastic spiral rod 34 shows a phenomenon of reduced spiral diameter, thereby reducing the coverage range of the elastic spiral rod 34 when stirring the special gas, reducing the mixing effect on the special gas, and avoiding excessive stirring to cause unnecessary energy loss or affect the accuracy of the electrochemical sensor 15.

[0050] The interior of the air intake pipe 11 is also provided with a rotating mechanism 5 controlled by the rotating drum 13, which is used to improve the comprehensiveness of the electrochemical sensor 15 in detecting special gases. The rotating mechanism 5 includes a fixed block 51 fixedly connected to the interior of the rotating drum 13, and an extension rod 52 is fixedly connected to the fixed block 51. The extension rod 52 passes through the mounting plate 12 and extends to the position on the other side of the blocking block 23 and is fixedly connected to a slide rail 53. A slider 54 is linearly slidably connected to the slide rail 53. The electrochemical sensor 15 is fixedly connected to the slider 54, and the extension rod 52 is also provided with a driving component 55 for the position of the slider 54 on the slide rail 53.

[0051] The driving assembly 55 includes a fixed ring 551 fixedly connected to the extension rod 52, a moving ring 552 movably installed on the extension rod 52, two limit rods 553 fixedly connected to the moving ring 552, two limit holes 554 used in conjunction with the limit rods 553 are provided on the fixed ring 551, a sleeve 555 is rotatably connected to the side wall of the moving ring 552, a reciprocating threaded section 556 is provided on the rod body of the extension rod 52 away from the mounting plate 12, the sleeve 555 is threadedly matched with the reciprocating threaded section 556 on the extension rod 52, an articulated seat 557 is provided on the moving ring 552 and the slider 54, a connecting rod 558 is hinged between the two articulated seats 557, a sliding rod 559 is fixedly connected to the sleeve 555, a strip groove is provided on the inner wall of the intake pipe 11, and the sliding rod 559 is slidably connected to the inner wall of the strip groove.

[0052] Specifically, the extension rod 52 and the mounting plate 12 are connected in an airtight rotational manner to prevent leakage of the hydraulic oil in the hydraulic control assembly 25 .

[0053] Specifically, the sliding rod 559 and the strip groove enable the sleeve 555 to perform reciprocating horizontal displacement only along the reciprocating threaded section 556, and during this process, the sleeve 555 can rotate relative to the movable ring 552. Since the limiting rod 553 and the limiting hole 554 limit the movable ring 552, the movable ring 552 can always rotate along with the fixed ring 551 and the extension rod 52 during the process of the sleeve 555 pulling the movable ring 552 to move horizontally, so that there will be no motion interference when the movable ring 552 drives the slider to move through the hinge seat 557 and the connecting rod 558.

[0054] In order to avoid the reduction in the accuracy of the detection result caused by the electrochemical sensor 15 performing local detection of the special gas, the present invention sets a rotating mechanism 5. During the process of conveying the special gas, the rotation of the rotating drum 13 will drive the extension rod 52 to rotate synchronously, thereby driving the slide rail 53, the slider 54 and the electrochemical sensor 15 to rotate synchronously, and detect the special gas from various angles. In this process, the reciprocating threaded section 556 on the extension rod 52 will cause the sleeve 555 to perform reciprocating horizontal displacement, and the sleeve 555 pulls the movable ring 552 to perform reciprocating horizontal displacement relative to the fixed ring 551. Therefore, under the action of the hinge seat 557 and the connecting rod 558, the slide rail 53 drives the slider 54 to rotate, and the slider 54 is able to slide reciprocatingly on the slide rail 53, thereby driving the electrochemical sensor 15 to detect the special gas from various positions, thereby improving the comprehensiveness of the detection of the special gas and avoiding large errors caused by local detection.

[0055] The present invention can be explained by the following operation mode:

[0056] When in use, the special gas is transported from the side away from the delivery pipe 1 to the intake pipe 11. The impact force generated during the delivery of the special gas will drive the fan blades 14 and the drum 13 to rotate. When the speed of the special gas is too fast, the rotation speed of the drum 13 and the control block 251 is fast, so that the centrifugal force of the piston block 255 in the control groove 254 is large, and the piston block 255 moves toward the inside of the control groove 254, so that the hydraulic telescopic rod 24 contracts, and the cross-section of the special gas delivery channel formed between the two blocking blocks 23 and the inner wall of the intake pipe 11 is The area is increased, and the special gas is buffered when passing through the two blocking blocks 23, so that the flow rate of the special gas is reduced when passing through the two blocking blocks 23. When the flow rate of the special gas is too slow, the piston block 255 moves toward the inside of the control chamber 253, and the hydraulic telescopic rod 24 is extended. The cross-sectional area of ​​the special gas delivery channel formed between the two blocking blocks 23 and the inner wall of the intake pipe 11 is reduced. The special gas is accelerated when passing through the two blocking blocks 23, thereby avoiding the situation where the flow rate of the special gas is too large or too small during the delivery process;

[0057] When the rotating drum 13 drives the control block 251 to rotate, it will synchronously drive the support rod 31 to rotate, so that the two moving blocks 33 on the support rod 31 drive the elastic spiral rod 34 to rotate, and the special gas is evenly mixed before it contacts the electrochemical sensor 15;

[0058] When the flow rate of the special gas is fast, stronger stirring is required to break the gas flow layer. At this time, the compression degree of the first spring 256 by the piston block 255 is large, and the pressure applied to the varistor 41 is large. The magnetic attraction between the two annular electromagnets 43 increases, and the two moving blocks 33 compress the elastic spiral rod 34. The elastic spiral rod 34 shows a phenomenon of increased spiral diameter, thereby increasing the coverage range of the elastic spiral rod 34 when stirring the special gas. When the flow rate of the special gas is slow, the special gas itself is relatively uniform, and the intensity of stirring needs to be appropriately weakened. At this time, the pressure applied to the varistor 41 is small, and the two moving blocks 33 stretch the elastic spiral rod 34. The elastic spiral rod shows a phenomenon of reduced spiral diameter, thereby reducing the coverage range of the elastic spiral rod 34 when stirring the special gas.

[0059] The rotation of the rotating drum 13 will drive the extension rod 52 to rotate synchronously, thereby driving the slide rail 53, the slider 54 and the electrochemical sensor 15 to rotate synchronously, and detect the special gas from various angles. During this process, the sleeve 555 performs reciprocating horizontal displacement, pulling the movable ring 552 to perform reciprocating horizontal displacement relative to the fixed ring 551, so that the slider 54 can slide back and forth on the slide rail 53, thereby driving the electrochemical sensor 15 to detect the special gas from various positions.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special gas transport integrated gas sensor, characterized in that: include: A delivery pipe, one end of which is fixedly connected to an air intake pipe, a mounting plate is fixedly connected to the inside of the air intake pipe, a rotating drum is rotatably connected to the mounting plate, a fan blade for monitoring the flow rate of special gases is fixedly connected to the peripheral side wall of the rotating drum, and an electrochemical sensor for detecting special gases is arranged inside the air intake pipe; A flow rate regulating mechanism is used to adaptively adjust the flow rate of the special gas, the flow rate regulating mechanism includes a liquid guide cavity opened inside the mounting plate, the liquid guide cavity is communicated with the inside of the rotating drum, control cylinders are fixedly connected to both side walls of the air inlet pipe, a blocking block is airtightly slidably connected to the inside of the control cylinder, a hydraulic telescopic rod is fixedly connected to the outer wall of the control cylinder, the output end of the hydraulic telescopic rod is fixedly connected to the blocking block, and a hydraulic control assembly is provided on the rotating drum; The hydraulic control assembly comprises a control block fixedly connected to one end of the rotating drum, a liquid infusion tube is fixedly connected between the hydraulic telescopic rod and the liquid guiding cavity, a control cavity connected to the inside of the rotating drum is provided inside the control block, a plurality of control grooves distributed in a circumferential array are provided on the inner circumferential wall of the control cavity, a piston block is airtightly slidably connected in each of the control grooves, a first spring is provided between the piston block and the inner wall of the control groove, a liquid storage space is formed inside the control groove, the control cavity, the rotating drum, the liquid guiding cavity, the liquid infusion tube and the hydraulic telescopic rod, and the liquid storage space is filled with hydraulic oil; The inside of the air inlet pipe is also provided with a stirring mechanism for stirring and mixing the special gas before the special gas contacts the electrochemical sensor. The stirring mechanism comprises a support rod fixedly connected to the control block, one end of the support rod away from the control block is fixedly connected to a limit block, and two moving blocks are slidably connected to the support rod in a horizontal direction, and an elastic spiral rod is fixedly connected between the two moving blocks; The control block is also provided with a stirring amplitude control mechanism for adjusting the coverage of the elastic spiral rod according to the flow rate of the special gas. The stirring amplitude control mechanism includes a varistor fixedly connected to the inner wall of one of the control grooves, the varistor is fixedly connected to the first spring, and a second spring is provided between the control block, the limit block and the corresponding position moving block. An annular electromagnet is provided on one side wall of the two moving blocks close to each other. When the two annular electromagnets are energized, opposite poles attract each other, and the two annular electromagnets are connected in series with the power supply device through the varistor.

2. The special gas transport integrated gas sensor according to claim 1, characterized in that: The support rod is fixedly connected with a strip-shaped limiting groove, and the two moving blocks are fixedly connected with limiting blocks, and the limiting blocks are slidably connected to the inner wall of the strip-shaped limiting groove.

3. The special gas transport integrated gas sensor according to claim 1, characterized in that: The elastic spiral rod is made of superelastic material.

4. The special gas transport integrated gas sensor according to claim 1, characterized in that: The interior of the air intake pipe is also provided with a rotating mechanism controlled by a rotating drum, which is used to improve the comprehensiveness of the electrochemical sensor in detecting special gases. The rotating mechanism includes a fixed block fixedly connected to the interior of the rotating drum, an extension rod fixedly connected to the fixed block, the extension rod passes through the mounting plate and extends to the position on the other side of the shielding block and is fixedly connected to a slide rail, a slider is linearly slidably connected to the slide rail, the electrochemical sensor is fixedly connected to the slider, and the extension rod is also provided with a driving component for the position of the slider on the slide rail.

5. The special gas transport integrated gas sensor according to claim 4, characterized in that: The driving assembly includes a fixed ring fixedly connected to the extension rod, a movable ring movably installed on the extension rod, two limit rods fixedly connected to the movable ring, two limit holes used in conjunction with the limit rods are provided on the fixed ring, a sleeve is rotatably connected to the side wall of the movable ring, a reciprocating threaded section is provided on the rod body of the extension rod away from the mounting plate, the sleeve threadably cooperates with the reciprocating threaded section on the extension rod, an articulated seat is provided on the movable ring and the slider, a connecting rod is hinged between the two articulated seats, a sliding rod is fixedly connected to the sleeve, a strip groove is provided on the inner wall of the intake pipe, and the sliding rod is slidably connected to the inner wall of the strip groove.

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