Gas Detection Device, System and Method for Detecting Gas Volume in a Container

Abstract

The present invention provides a gas detection device for detecting the gas volume in a container. The gas detection device includes a bracket, a laser generator, a laser receiver, and a lifting and adjusting assembly. The bracket is movably fixed to the container to be detected. The laser generator is fixedly assembled with the bracket. The laser receiver is disposed opposite to the laser generator and cooperates with the laser generator to detect the liquid surface in the container to be detected. The lifting and adjusting assembly adjusts the lifting of the bracket relative to the container to be detected in the height direction. The structure of the present invention is simple, convenient to move around at will, and can measure gas volumes with different values. At the same time, the present invention also provides a gas detection system and a gas detection method.

Description

Technical Field

[0001] The present invention relates to the field of gas volume detection, and particularly to a gas detection device, system and method for detecting the gas volume in a container. Background Art

[0002] In the prior art, a gas detection device for detecting the gas volume in a container includes a laser detector fixed outside the container. The laser detector determines whether the inside of the container is in a liquid or gas state according to the change of the laser frequency, so as to control the gas detection device. The position of the laser detector is fixed and cannot be moved arbitrarily, and it is impossible to measure the gas volumes with different values in the container. Summary of the Invention

[0003] In order to solve the above-mentioned existing technical problems, the present invention provides a gas detection device with a simple structure, convenient for arbitrary movement, and can be used to detect the gas volumes with different values in a container.

[0004] Meanwhile, the present invention also provides a gas detection system and method using the gas detection device.

[0005] A gas detection device for detecting the gas volume in a container includes a bracket, a laser generator, a laser receiver and a lifting adjustment assembly. The bracket is movably fixed to the container to be detected. The laser generator is fixedly assembled with the bracket. The laser receiver is disposed opposite to the laser generator to cooperate with the laser generator to detect the liquid surface in the container to be detected. The lifting adjustment assembly adjusts the lifting of the bracket relative to the container to be detected in the height direction.

[0006] Preferably, the lifting adjustment assembly includes a locking structure, an elastic body and a slider. The locking structure penetrates through the bracket. The elastic body is clamped between the locking structure and the slider. The slider is elastically pressed and fixed with the container.

[0007] Preferably, the bracket includes a first housing and a second housing. The first housing and the second housing are assembled and cooperated through bolts to form a bracket with a through hole. The locking structure penetrates through the first housing. The elastic body abuts against the first housing. The slider is movably assembled with the first housing and abuts against the second housing.

[0008] Preferably, the first housing includes a limiting post, and the slider includes a limiting hole for receiving the limiting post.

[0009] Preferably, the second housing includes a first fixing position and a second fixing position which are oppositely arranged. The laser generator is fixed to the first fixing position, and the laser receiver is fixed to the second fixing position.

[0010] Preferably, it further includes an optical fiber amplifier, which is fixedly assembled with the bracket, electrically connected to the laser generator, and electrically connected to the laser receiver.

[0011] Preferably, the bracket further includes a fixing member, which is fixedly assembled with the second housing and fixedly houses the optical fiber amplifier.

[0012] A gas detection system includes a container, a liquid supply device, a gas generation device, a gas collection device, and a gas detection device. The liquid supply device is connected to the container to supply liquid to the container. The gas generation device is connected to the container to generate gas and enter the container, causing a liquid level difference between the liquid supply device and the container. The gas collection device is connected to the container to collect the gas entering the container from the gas generation device. The gas detection device includes a bracket, a laser generator, a laser receiver, and a lifting and adjusting component. The bracket is movably fixed to the container. The laser generator is fixedly assembled with the bracket. The laser receiver is disposed opposite to the laser generator to cooperate with the laser generator to detect the liquid surface in the container. The lifting and adjusting component adjusts the lifting of the bracket relative to the container in the height direction.

[0013] Preferably, it further includes an optical fiber amplifier, which is fixedly assembled with the bracket, electrically connected to the laser generator, and electrically connected to the laser receiver.

[0014] A gas detection method includes:

[0015] Confirm a first scale, where the first scale is the scale of the liquid level in the container when the gas collection device is in a first state and the liquid surface in the liquid supply device is flush with the liquid surface in the container. The first state is the gas collection state;

[0016] The gas collection device changes from the first state to a second state, and the second state is the state of stopping gas collection;

[0017] Confirm a second scale according to the first scale and a preset measurement volume;

[0018] Move the gas detection device to the second scale to obtain a first-frequency laser beam and a second-frequency laser beam. The first-frequency laser beam is the laser beam radiated by the laser generator, and the second-frequency laser beam is the laser beam received by the laser receiver;

[0019] The gas generation device generates gas and enters the container;

[0020] The gas compresses the liquid surface in the container to the second scale to obtain the first-frequency laser beam and the third-frequency laser beam, and the third-frequency laser beam is the laser beam received by the laser receiver.

[0021] In response to the third-frequency laser beam, the gas collection device changes from the second state to the first state.

[0022] Compared with the prior art, the gas detection device for detecting the gas volume in a container according to the present invention includes a bracket and a lifting adjustment assembly. The lifting adjustment assembly includes a locking structure, an elastic body, and a slider. The container is fixed in cooperation with the bracket. When the scale value needs to be adjusted, the locking structure is pulled along the compression direction of the elastic body, so that the slider and the container change from the fitting state to the separated state. At this time, the bracket can move up and down along the scale value direction of the container. When the laser generator and the laser receiver are adjusted to the required scale value, the locking structure is released. At this time, the slider cooperates with the bracket under the action of the elastic body to tightly fix the container. The adjustment method is simple, fast and convenient, and can measure the gas volume of different values. Description of the Drawings

[0023] Figure 1 is a three-dimensional structural schematic diagram of a gas detection system disclosed by the present invention;

[0024] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the gas detection device shown;

[0025] Figure 3 is Figure 2 a three-dimensional exploded schematic diagram of the gas detection device shown;

[0026] Figure 4 is Figure 2 a three-dimensional structural schematic diagram of the first housing shown. Detailed Embodiments

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1, which is a three-dimensional structural schematic diagram of a gas detection system disclosed by the present invention. The gas detection system 100 includes a gas detection device 10, a container 20, a gas generation device 30, a gas collection device 40, and a liquid supply device 50. The gas detection device 10 is fixedly assembled with the container 20, and the gas generation device 30, the gas collection device 40, and the liquid supply device 50 are respectively connected to the container 20.

[0029] Please refer to Figure 2 and Figure 3 , wherein, Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the gas detection device shown, Figure 3 is Figure 2 a three-dimensional exploded schematic diagram of the gas detection device shown. The gas detection device 10 includes a bracket 11, a laser generator 13, a laser receiver 15, an optical fiber amplifier 17, and a lifting adjustment assembly 19. The bracket 11 fixedly houses the optical fiber amplifier 17. The laser generator 13 and the laser receiver 15 are respectively fixedly assembled with the bracket 11. The laser generator 13 emits a first-frequency laser beam. The laser receiver 15 is disposed opposite to the laser generator 13 and receives a second-frequency laser beam that is emitted from the laser generator 13 and passes through the container 20. The optical fiber amplifier 17 is electrically connected to the laser generator 13 and electrically connected to the laser receiver 15. The lifting adjustment assembly 19 is connected to the bracket 11, cooperates with the bracket 11 to fix the container 20, and adjusts the lifting of the bracket 11 relative to the container 20 to be detected in the height direction.

[0030] The bracket 11 includes a first housing 111, a second housing 113, and a fixing member 115. The first housing 111 and the second housing 113 are fixedly assembled by bolts. The first housing 111 and the second housing 113 cooperate to form a bracket with a through hole 117. The bracket 11 is sleeved outside the container 20 through the through hole 117. The second housing 113 is a U-shaped structure. The fixing member 115 is fixedly assembled with the second housing 113 and fixedly houses the optical fiber amplifier 17. The lifting adjustment assembly 19 is connected to the first housing 111 and abuts against the second housing 113.

[0031] The second housing 113 includes a cover body 1131 and a bottom shell 1133. The cover body 1131 and the bottom shell 1133 are assembled together to form a second housing with a first accommodation space. The laser generator 13 and the laser receiver 15 are accommodated in the first accommodation space. The cover body 1131 includes a first through hole 11311, and the bottom shell 1133 includes a second through hole 11331, as Figure 4As shown, the first housing 111 includes a third through hole 1111 and a fourth through hole 1113. The bolt fixes the cover 1131 and the first housing 111 through the first through hole 11311 and the third through hole 1111. The bolt fixes the bottom case 1133 and the first housing 111 through the second through hole 11331 and the fourth through hole 1113. The bottom case 1133 further includes a first fixing position 11333 and a second fixing position 11335 which are oppositely arranged. The laser generator 13 is fixed to the first fixing position 11333, and the laser receiver 15 is fixed to the second fixing position 11335.

[0032] The fixing member 115 includes a fifth through hole 1151. The cover 1131 further includes a sixth through hole 11313. The fifth through hole 1151 and the sixth through hole 11313 are correspondingly arranged. In the present invention, the laser generator 13 and the laser receiver 15 are respectively connected to the fiber optic amplifier 17 through an M4 elbow opposed fiber optic cable. The M4 elbow opposed fiber optic cable connects the laser generator 13 and the laser receiver 15 to the fiber optic amplifier 17 through the fifth through hole 1151 and the sixth through hole 11313 respectively.

[0033] The lifting and adjusting assembly 19 includes a locking structure 191, an elastic body 193 and a slider 195. The elastic body 193 is sleeved outside the locking structure 191 and is clamped between the locking structure 191 and the slider 195. The locking structure 191 is fixedly assembled with the slider 195. The locking structure 191 penetrates through the first housing 111. The slider 195 is movably assembled with the first housing 111, abuts against the second housing 113, and is elastically pressed and fixed with the container 20.

[0034] The slider 195 includes a limiting hole 1951. As Figure 4 shown, the first housing 111 further includes a limiting post 1115. The limiting hole 1951 and the limiting post 1115 are correspondingly arranged to receive the limiting post 1115.

[0035] When fixing the container 20, pull the locking structure 191 along the compression direction of the elastomer 193 to compress the elastomer 193. The slider 195 slides along the compression direction of the elastomer 193. Then, sleuth the bracket 11 outside the container 20. When the laser generator 13 is moved to the required scale value, release the locking structure 191. The elastomer 193 restores its elasticity and drives the slider 195 to move along the direction close to the container until the slider 195 cooperates with the bracket 11 to tightly fix the container. When adjusting the scale value, pull the locking structure 191 along the compression direction of the elastomer 193 to change the state of the slider 195 from being in contact with the container 20 to being separated from it. At this time, the bracket 11 can move up and down along the scale value direction of the container. When adjusting the laser generator 13 and the laser receiver 15 to the required scale value, release the locking structure 191. At this time, the slider 195 cooperates with the bracket 11 under the action of the elastomer 193 to tightly fix the container 20.

[0036] The container 20 includes a side wall 21, a central tube 23, a first open end 25 and a second open end 27. The side wall 21 encloses a second receiving space 211. The central tube 23 is received in the second receiving space 211, with one end penetrating through the container 20 to form a first opening 231 and the other end located inside the container 20 to form a second opening 233. The gas generating device 30 is in communication with the central tube 23 through the first opening 231. The gas collecting device 40 is in communication with the second receiving space 211 through the first open end 25. The liquid supply device 50 is in communication with the second receiving space 211 through the second open end 27. Scale lines are provided on the side wall 21 of the container 20.

[0037] The gas collecting device 40 includes a first state and a second state. The first state is the state of collecting gas, and the second state is the state of stopping collecting gas.

[0038] The liquid supply device 50 includes a liquid filling bottle 51, a conducting tube 53 and a liquid 55. The liquid 55 is received in the liquid filling bottle 51. One end of the conducting tube 53 is connected to the liquid filling bottle 51, and the other end is connected to the second open end 27. The liquid 55 enters the second receiving space 211 through the conducting tube 53 and the second open end 27. The liquid 55 that enters the second receiving space 211 is located between the central tube 23 and the side wall 21.

[0039] When the gas detection system 100 starts to work, adjust the liquid filling bottle 51 to the required height. At this time, the gas collection device 40 is in the first state, and the liquid surface of the liquid 55 in the container 20 is flush with the liquid surface of the liquid in the liquid filling bottle 51. At this time, the scale of the container 20 where the liquid level is located is the first scale, and the gas collection device 40 changes to the second state. Confirm the second scale according to the first scale and the preset measurement volume. The volume difference between the second scale and the first scale is the preset measurement volume. Move the bracket 11 to the position where the laser generator 13 and the laser receiver 15 correspond to the second scale. At this time, the laser generator 13 emits a laser beam with a first frequency, and the laser receiver 15 receives the laser beam with a second frequency that is emitted by the laser generator and passes through the container 20. Here, passing through the container 20 includes passing through the side wall 21 and the liquid 55 located in the second accommodation space 211. Subsequently, the gas generating device 30 generates gas, which enters the central tube 23 from the first opening 231, and enters the second accommodation space 211 between the central tube 23 and the side wall 21 through the second opening 233. Due to the continuous generation of gas, the liquid 55 is subjected to the pressure from the gas, resulting in the decrease of the liquid level of the liquid 55. The liquid 55 flows back into the liquid filling bottle 51. When the gas reaches the second scale, the first frequency laser beam does not pass through the liquid 55, and the laser receiver 15 receives the laser beam with a third frequency, and the third frequency laser beam is different from the second frequency laser beam. At this time, the gas collection device 40 changes to the first state, and then the liquid 55 in the liquid filling bottle 51 flows to the second accommodation space 211 again until the liquid level in the liquid filling bottle 51 is flush with the liquid level in the second accommodation space 211. If you want to measure gases with different volumes, you only need to set different preset measurement volumes and adjust the lifting of the bracket 11.

[0040] Taking the preset measurement volume as a measurement unit, the volume of the gas generated by the gas generating device 30 can be known. Specifically, when one volume of the gas is required, the second scale is confirmed through the preset measurement volume, and the corresponding volume of the gas can be accurately obtained; at the same time, the preset measurement volume can be used as a measurement unit, and the volume of the gas generated by the gas generating device 30 can be known by calculating the preset measurement volume and the number of state changes of the gas collection device 40. Of course, it can be understood that the remaining amount of the gas that is not enough to reach the second scale can also be calculated according to the current scale and the first scale. Therefore, in this application, the lifting adjustment component 19 is used to adjust the lifting of the bracket 11 relative to the container 20 in the height direction, making it more convenient and accurate to measure the volume of the gas.

[0041] Compared with the prior art, the gas detection device 10 for detecting the gas volume in a container according to the present invention includes a bracket 11 and a lifting and adjusting assembly 19. The lifting and adjusting assembly 19 includes a locking structure 191, an elastic body 193, and a slider 195. The container 20 is fixed in cooperation with the bracket 11. When it is necessary to adjust the scale value, the locking structure 191 is pulled along the compression direction of the elastic body 193, so that the slider 195 is changed from a fitting state with the container 20 to a separated state. At this time, the bracket 11 can move up and down along the scale value direction of the container 20. When the laser generator 13 and the laser receiver 15 are adjusted to the required scale value, the locking structure 191 is released. At this time, the slider 195 cooperates with the bracket 11 under the action of the elastic body 193 to tightly fix the container 20. The adjustment method is simple to operate, convenient to move at will, and can measure the gas volume of different values.

[0042] The above are only partial embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the invention specification and drawings, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A gas detection device for detecting the gas volume in a container, characterized in that, Comprising: A bracket configured to be movably fixed to a container to be detected, wherein the container to be detected is connected to a liquid supply device, a gas generating device, and a gas collection device. The liquid supply device is configured to supply liquid to the container to be detected. The gas generating device is configured to generate gas and enter the container to be detected, so that a liquid level difference is generated between the liquid supply device and the container to be detected. The gas collection device is configured to collect the gas entering the container to be detected by the gas generating device; A laser generator fixedly assembled with the bracket; A laser receiver disposed opposite to the laser generator and configured to cooperate with the laser generator to detect the liquid surface in the container to be detected; And A lifting adjustment assembly configured to adjust the lifting of the bracket relative to the container to be detected in the height direction, wherein the lifting adjustment assembly is configured to adjust the bracket to a scale position of the container to be detected, and the scale position corresponds to the volume of gas to be measured. The laser generator and the laser receiver are configured to detect whether the liquid level in the container to be detected has dropped to the scale position to measure the required volume of gas.

2. The gas detection device according to claim 1, characterized in that, The lifting adjustment assembly includes a locking structure, an elastic body, and a slider. The locking structure penetrates through the bracket. The elastic body is clamped between the locking structure and the slider. The slider is elastically pressed and fixed to the container to be detected. One end of the locking structure located outside the bracket is for a user to pull the slider along the compression direction of the elastic body, so that the bracket can move along the height direction of the container to be detected.

3. The gas detection device according to claim 2, characterized in that, The bracket includes a first housing and a second housing. The first housing and the second housing are assembled and cooperated by bolts to form a bracket with a through hole. The locking structure penetrates through the first housing. The elastic body abuts against the first housing. The slider is movably assembled with the first housing and abuts against the second housing.

4. The gas detection device according to claim 3, wherein The first housing includes a limiting post, and the slider includes a limiting hole for receiving the limiting post.

5. The gas detection device according to claim 3, wherein The second housing includes a first fixing position and a second fixing position which are oppositely arranged. The laser generator is fixed to the first fixing position, and the laser receiver is fixed to the second fixing position.

6. The gas detection device according to claim 3, wherein, It further includes an optical fiber amplifier which is fixedly assembled with the bracket, electrically connected to the laser generator, and electrically connected to the laser receiver.

7. The gas detection device according to claim 6, wherein The bracket further includes a fixing member which is fixedly assembled with the second housing and fixedly houses the optical fiber amplifier.

8. A gas detection system, characterized in that, Comprising: A container; A liquid supply device connected to the container and configured to supply liquid to the container; A gas generating device connected to the container and configured to generate gas and enter the container, so that a liquid level difference is generated between the liquid supply device and the container; A gas collection device connected to the container and configured to collect the gas entering the container by the gas generating device; And A gas detection device, including: A bracket movably fixed to the container; A laser generator fixedly assembled with the bracket; A laser receiver disposed opposite to the laser generator and configured to cooperate with the laser generator to detect the liquid surface in the container; And A lifting adjustment component adjusts the lifting of the bracket relative to the container in the height direction. Wherein, The lifting adjustment component is configured to adjust the bracket to a scale position on the container, and the scale position corresponds to the gas volume to be measured. The gas generating device is configured to output gas into the container and force the liquid level in the container to drop. The laser generator and the laser receiver are configured to detect whether the liquid level in the container has dropped to the scale position. The gas collection device is configured to change from the state of stopping gas collection to the gas collection state when the liquid level in the container drops to the scale position, so as to measure the required volume of gas.

9. The gas detection system according to claim 8, characterized in that, It further includes an optical fiber amplifier, which is fixedly assembled with the bracket, electrically connected to the laser generator, and electrically connected to the laser receiver.

10. A gas detection method applied to the gas detection system according to claim 8 or 9, characterized in that, It includes: Confirm the first scale, which is the scale of the liquid level in the container when the gas collection device is in the first state and the liquid surface in the liquid supply device is flush with the liquid surface in the container. The first state is the gas collection state. The gas collection device changes from the first state to the second state, and the second state is the state of stopping gas collection. Confirm the second scale according to the first scale and the preset measurement volume. Move the gas detection device to the second scale to obtain a first-frequency laser beam and a second-frequency laser beam. The first-frequency laser beam is the laser beam radiated by the laser generator, and the second-frequency laser beam is the laser beam received by the laser receiver. The gas generating device generates gas and enters the container. The gas compresses the liquid surface in the container to the second scale to obtain the first-frequency laser beam and a third-frequency laser beam. The third-frequency laser beam is the laser beam received by the laser receiver. In response to the third-frequency laser beam, the gas collection device changes from the second state to the first state to measure the required volume of gas, and the required volume is the preset measurement volume.

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