A gas mixing and conveying device and an olfactory identification system

Abstract

The embodiments of the present disclosure include a gas mixing and conveying device and an olfactory identification system. The gas mixing and conveying device may include a first gas input device, a first cavity, and a second gas input device. The first gas input device and the second gas input device may both be connected to the first cavity. In this way, the first gas and the second gas may be mixed in the first cavity. Since the first cavity is connected to the first olfactory identification pipeline, and the second gas input device is connected to the second olfactory identification pipeline and the third olfactory identification pipeline, the staff may directly smell the gas output from the first olfactory identification pipeline, the second olfactory identification pipeline and the third olfactory identification pipeline to complete the olfactory identification of the gas. Compared with the traditional olfactory identification method, the polyester odorless bags required for olfactory identification can be saved, thereby saving the cost required for the gas olfactory identification process.

Description

Technical Field

[0001] The present invention relates to the technical field of odor concentration detection and analysis devices, and in particular to a gas mixing and conveying device and an olfactory identification system. Background Art

[0002] Odor pollution is a common environmental pollution. Currently, complaints about odor pollution are increasing significantly, and odor pollution has become an environmental hotspot. Since the 1960s, countries around the world have successively formulated odor control standards and have made significant progress in odor pollution investigation, testing technology, and control technology. Among them, testing the odor concentration of odorous gases has always been widely concerned.

[0003] Odor concentration is an indicator that quantifies the size of odor based on the olfactory organ test method. The dilution multiple when the sample gas is continuously diluted to the odorist's threshold with odorless clean air is called odor concentration. At present, my country adopts GB-14554 "Emission Standard of Malodor Pollutants" which uses odor concentration as the emission evaluation indicator. The corresponding detection method is GB / T14675-93 "Three-point Comparison Odor Bag Method for Determination of Air Quality Malodor".

[0004] The principle of the three-point comparison odor bag method test is to use clean air and sample gas to dilute different times within 24 hours after the sampling is completed. The odorist will then identify the diluted mixed gas and select the bag with odor from the three bags until it can no longer be smelled. At this time, the odorist's detection threshold for the sample is reached. The odor concentration of the sample is obtained by statistically calculating the olfactory thresholds of the six odorists.

[0005] At present, after collecting the sample gas, the testers need to manually dilute and mix the gas. The operation method is that the testers extract clean air and sample gas respectively according to a certain proportion, and inject the extracted gas into the same polyester odorless bag so that the odorist can smell the sample gas. It takes half an hour to analyze a sample using this method, which is time-consuming and laborious. In addition, the short shelf life of the samples means that many samples cannot be analyzed in time, and polyester odorless bags are required, which makes the cost of the odor identification process high. Summary of the invention

[0006] This disclosure section is provided to introduce concepts in a brief form, which will be described in detail in the detailed description section below. This disclosure section is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] The disclosed embodiments provide a gas mixing and conveying device and an olfactory identification system, which can shorten the dilution and gas distribution time, thereby improving the gas distribution efficiency, and thus improving the efficiency of sample detection. At the same time, it can also reduce the use of polyester odorless bags and save costs.

[0008] In a first aspect, an embodiment of the present disclosure provides a gas mixing and conveying device, comprising: a first gas input device, a first cavity, and a second gas input device; the first gas input device is connected to the first cavity through a first pipeline, and the second gas input device is connected to the first cavity through a second pipeline; the first cavity is connected to the first olfactory detection pipeline, and the second gas input device is connected to the second olfactory detection pipeline and the third olfactory detection pipeline; switches are provided on the first pipeline, the second pipeline, the first olfactory detection pipeline, the second olfactory detection pipeline and the third olfactory detection pipeline; wherein the switches are used to control the opening and closing of the pipelines.

[0009] In some optional embodiments, the gas mixing and delivery device further includes: a conversion connecting valve; the conversion connecting valve includes three input interfaces and three output interfaces, and each input interface corresponds to an output interface; the first olfactory identification pipeline, the second olfactory identification pipeline and the third olfactory identification pipeline are respectively connected to the three input interfaces of the conversion connecting valve; the three output interfaces of the conversion connecting valve are respectively connected to the fourth olfactory identification pipeline, the fifth olfactory identification pipeline and the sixth olfactory identification pipeline; wherein, when the conversion connecting valve is in operation, the corresponding relationship between the input interface and the output interface changes.

[0010] In some optional embodiments, the gas mixing and delivery device further comprises a display screen, which is connected to the conversion connecting valve, wherein the display screen is used to display the correspondence between the input interface and the output interface in the conversion connecting valve.

[0011] In some optional embodiments, the first cavity is a cavity including a piston, and the gas mixing and conveying device further includes a first motor, and the first motor is connected to the piston; wherein the first motor is used to drive the piston to move back and forth.

[0012] In some optional embodiments, the gas mixing and delivery device includes a heating device, and the heating device is connected to the first cavity, wherein the heating device is used to heat the first cavity.

[0013] In some optional embodiments, the gas mixing and conveying device further includes a second motor, and the second motor is connected to the first cavity, wherein the second motor is used to drive the first cavity to vibrate.

[0014] In some optional embodiments, the first cavity is a cavity with a capacity scale.

[0015] In some optional embodiments, the gas mixing and conveying device further includes a waste gas receiving device; the first gas input device is connected to the waste gas receiving device via a third pipeline, and the first cavity is connected to the waste gas receiving device via a fourth pipeline; wherein switches are provided on both the third pipeline and the fourth pipeline.

[0016] In some optional embodiments, the gas mixing and conveying device further includes a second cavity, the first gas input device is connected to the second gas cavity through a fifth pipeline; the second gas input device is connected to the second cavity through a sixth pipeline; the second cavity is connected to the seventh olfactory identification pipeline, and the second gas input device is connected to the eighth olfactory identification pipeline and the ninth olfactory identification pipeline; switches are arranged on the fifth pipeline, the sixth pipeline, the seventh olfactory identification pipeline, the eighth olfactory identification pipeline and the ninth olfactory identification pipeline.

[0017] In a second aspect, the present application provides an olfactory identification system, comprising a gas mixing and delivery device as described above in the first aspect.

[0018] In some optional embodiments, each gas mixing and delivery device shares the same first gas input device and the same second gas input device.

[0019] The present application provides a gas mixing and conveying device and an olfactory system. The gas mixing and conveying device may include a first gas input device, a first cavity, and a second gas input device. The first gas input device and the second gas input device may both be connected to the first cavity. In this way, the first gas and the second gas may be mixed in the first cavity. Since the first cavity is connected to the first olfactory pipeline, and the second gas input device is connected to the second olfactory pipeline and the third olfactory pipeline, the staff may directly smell the gas output from the first olfactory pipeline, the second olfactory pipeline and the third olfactory pipeline to complete the detection of the first gas. Compared with the traditional olfactory method, the polyester odorless bags required for olfactory detection can be saved, thereby saving the cost required for the gas olfactory detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0021] Figure 1 is a schematic structural diagram of a gas delivery device according to an embodiment of the present disclosure;

[0022] Figure 2A-2B is a schematic structural diagram of a gas delivery device according to another embodiment of the present disclosure;

[0023] Figure 3 is a connection schematic diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0024] Figure 4 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0025] Figure 5 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0026] Figure 6 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0027] Figure 7 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0028] Figure 8 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0029] Fig. 9 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0030] Fig.10 is a schematic structural diagram of a gas delivery device according to yet another embodiment of the present disclosure;

[0031] Summary of reference numerals:

[0032] 100-first gas input device; 110-first pipeline; 200-second gas input device; 210-second pipeline; 220-second olfactory identification pipeline; 230-third olfactory identification pipeline; 240-eighth olfactory identification pipeline; 250-ninth olfactory identification pipeline; 300-first cavity; 310-first olfactory identification pipeline; 320-piston; 400-conversion connecting valve; 410-fourth olfactory identification pipeline; 420-fifth olfactory identification pipeline; 430-sixth olfactory identification pipeline; 442, 444, 446-input interface; 452, 454, 456-interface output interface; 500-first motor; 600-second motor; 700-exhaust gas receiving device; 710-third pipeline; 720-fourth pipeline; 800-second cavity; 810-fifth pipeline; 820-sixth pipeline; 830-seventh olfactory identification pipeline. DETAILED DESCRIPTION

[0033] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0034] It should be understood that the various steps described in the method embodiments of the present disclosure may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present disclosure is not limited in this respect.

[0035] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0036] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0038] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed products are usually placed when used. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0039] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0040] Please refer to Figure 1 , Figure 1 A schematic diagram of a gas mixing and delivery device provided in an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the gas mixing and conveying device may include: a first gas input device 100, a first cavity 300, and a second gas input device 200; the first gas input device 100 can be connected to the first cavity 300 through a first pipeline 110, and the second gas input device 200 can be connected to the first cavity 300 through a second pipeline 210; the first cavity 300 can be connected to the first olfactory pipeline 310, and the second gas input device 200 can be connected to the second olfactory pipeline 220 and the third olfactory pipeline 230.

[0041] Here, switches may be provided on the first pipeline 110, the second pipeline 210, the first olfactory identification pipeline 310, the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230. Figure 1 The positions of the two relative triangles in the figure can be understood as switches).

[0042] Here, the switch can be used to control the opening and closing of the pipeline.

[0043] As an example, the switch may be a manually on-off type switch or an electrically controlled switch.

[0044] As an example, the first gas input device 100 can be used to store the gas to be detected, and the second gas input device 200 can be used to store or prepare clean air. Of course, in a specific embodiment, the gas mixing and delivery device can also be applied to other gas mixing scenarios. In this case, the first gas input device 100 and the second gas input device 200 can be used to store or prepare the type of gas according to actual conditions. That is, the type of gas specifically stored or prepared in the first gas input device 100 and the second gas input device 200 is not limited here.

[0045] As an example, when the gas to be detected needs to be detected, the first gas in the first gas input device 100 can be input into the first cavity 300, and the second gas in the second gas input device 200 can be input into the first cavity 300 to mix the first gas with the second gas. Afterwards, the gas after the first gas and the second gas are mixed can be transmitted through the first olfactory detection pipeline 310 so that the olfactory detection personnel can perform olfactory detection.

[0046] As an example, since the first cavity 300 is connected to the first olfactory identification pipeline 310, and the second gas input device 200 is connected to the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230, the person to be detected can directly smell the gas output by the first olfactory identification pipeline 310, the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230, thereby realizing the detection of the gas to be detected.

[0047] As an example, the first olfactory identification pipeline 310, the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230 can be respectively provided with switches, so that when the staff needs to perform olfactory identification on a certain olfactory identification pipeline, they can directly turn on the corresponding switch.

[0048] For ease of understanding, combined Figure 1 To illustrate, when the olfactory identification starts, the switch on the first olfactory identification pipeline 310 can be turned on first, and the switches on the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230 can be turned off, so that the olfactory identification of the gas in the first cavity 300 can be completed; correspondingly, the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230 can be olfactory identified in the same way. It should be noted here that the switch opening and closing staff and the olfactory identification staff can be different personnel, that is, the olfactory identification staff is not clear about the gas in each olfactory identification pipeline in advance, while the staff who manages the opening and closing of the switch can know the gas in each olfactory identification pipeline.

[0049] It should be noted that the number and location of switches on each pipeline can be limited according to actual conditions, and the number and specific location of switches on each pipeline are not limited here.

[0050] As an example, some pipelines may have common pipelines, such as Figure 1 As shown, the second pipeline 210 may share a pipeline with the second olfactory identification pipeline 220 and the third olfactory identification pipeline 230, and the second olfactory identification pipeline 220 may also share a pipeline with the third olfactory identification pipeline 230. Such a design can save the pipeline length required by the gas mixing and delivery device, thereby saving the cost of the gas mixing and delivery device.

[0051] As an example, the first gas input device 100 and the second gas input device 200 may be the same, so that the input rates of the gases of the first gas input device 100 and the second gas input device 200 may be the same, so that it is convenient to control the mixing ratio of the first gas and the second gas.

[0052] As an example, the first gas input device 100 can be understood as a pressure tank, that is, the first gas in the first gas input device 100 is delivered to the first cavity 300 by pressure. Correspondingly, the second gas input device 200 can also be a pressure tank. However, it should be noted that the specific method used by the first gas input device 100 and the second gas input device 200 to deliver gas is not limited here, and it only needs to be reasonably selected according to the actual delivery situation.

[0053] It can be seen that the gas mixing and conveying device provided by the present disclosure may include a first gas input device 100, a first cavity 300, and a second gas input device 200, and the first gas input device 100 and the second gas input device 200 may both be connected to the first cavity 300, so that the first gas and the second gas can be mixed in the first cavity 300; and since the first cavity 300 is connected to the first olfactory detection pipeline 310, and the second gas input device 200 is connected to the second olfactory detection pipeline 220 and the third olfactory detection pipeline 230, in this way, the staff can directly smell the gas output by the first olfactory detection pipeline 310, the second olfactory detection pipeline 220 and the third olfactory detection pipeline 230 to complete the smelling of the gas. Compared with the traditional smelling method, the polyester odorless bags required for smelling can be saved, thereby saving the cost required for the gas smelling process.

[0054] Furthermore, since each time the smelling operation is performed, it is only necessary to turn on the corresponding switch, the gas smelling process can be simplified and the efficiency of the gas smelling process can be improved.

[0055] In some embodiments, you can continue to refer to Figure 2A and Figure 2B The gas mixing and delivery device may further include: a switching connecting valve 400; the switching connecting valve 400 may include three input interfaces (interface 442, interface 444 and interface 446) and three output interfaces (interface 452, interface 454 and interface 456), each input interface corresponds to an output interface (such as Figure 2A In the figure, interface 442 corresponds to interface 452, interface 444 corresponds to interface 454, and interface 446 corresponds to interface 456); the first olfactory identification line 310, the second olfactory identification line 220 and the third olfactory identification line 230 are respectively connected to the three input interfaces of the conversion connecting valve, and the three output interfaces of the conversion connecting valve 400 can be connected to the fourth olfactory identification line 410, the fifth olfactory identification line 420 and the sixth olfactory identification line 430 respectively.

[0056] Here, when the switching connecting valve 400 is working, the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 may be changed. Figure 2A-2B As shown, in Figure 2A In the figure, interface 442 corresponds to interface 452, interface 444 corresponds to interface 454, and interface 446 corresponds to interface 456; when the switching connecting valve 400 works, interface 442 can correspond to interface 454, interface 444 can correspond to interface 456, and interface 446 can correspond to interface 452.

[0057] As an example, by setting the switching connecting valve 400, the olfactory identification personnel can complete the detection of the first gas by smelling the fourth smelling identification pipeline 410, the fifth smelling identification pipeline 420 and the sixth smelling identification pipeline 430. Since the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 can be changed, the switching connecting valve 400 can be operated after each smelling is completed, so that the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 can be adjusted; thus, the smelling can be performed again.

[0058] Specifically, after the staff completes one sniffing, they can directly change the corresponding relationship between the input interface and the output interface of the switching connecting valve 400, and ask the staff to sniff again. That is, when the staff performs two sniffings, they only need to adjust the corresponding relationship of the switching connecting valve. (For example, they can combine Figure 2A and 2B To explain, Figure 2A and 2B As shown, Figure 2A It can be understood as the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 during the first sniffing process. At this time, during the first sniffing process, the first sniffing pipeline 310 can correspond to the fourth sniffing pipeline 410, the second sniffing pipeline 220 corresponds to the fifth sniffing pipeline 420, and the third sniffing pipeline 230 corresponds to the sixth sniffing pipeline 430. When the next sniffing is required, the switching connecting valve 400 can be operated, and then the second sniffing is performed. Figure 2B It can be understood that the schematic diagram after the corresponding relationship between the input interface and the output interface of the conversion connecting valve 400 is adjusted, at this time, in the second olfactory identification process, the first olfactory identification pipeline 310 can correspond to the fifth olfactory identification pipeline 420, the second olfactory identification pipeline 220 can correspond to the sixth olfactory identification pipeline 430, and the third olfactory identification pipeline 230 can correspond to the fourth olfactory identification pipeline 410.

[0059] As an example, the correspondence between the input interface and the output interface of the conversion connecting valve 400 can be changed by manual adjustment or electric adjustment, and the specific adjustment method used to adjust the correspondence between the input interface and the output interface of the conversion connecting valve can be set according to actual conditions.

[0060] As an example, when the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 is adjusted by electric adjustment, an encoder can be set in the switching connecting valve 400, and the encoder can be used to record the number of adjustments of the switching connecting valve 400.

[0061] As an example, each time the switching connecting valve 400 is adjusted, the corresponding relationship between the input interface and the output interface of the switching connecting valve 400 is changed. (For example, in the initial state, the interface 442 corresponds to the interface 452, the interface 444 corresponds to the interface 454, and the interface 446 corresponds to the interface 456; after the switching connecting valve 400 is adjusted once, the interface 442 can correspond to the interface 454, the interface 444 can correspond to the interface 456, and the interface 446 can correspond to the interface 452. And so on; in this way, the corresponding relationship between the input interface and the output interface can be determined according to the number of times recorded by the encoder. Correspondingly, the corresponding relationship between the olfactory identification pipelines can also be determined according to the corresponding relationship between the input interface and the output interface. For example, when the number of times recorded by the encoder is 5, the first olfactory identification pipeline 310 can correspond to the sixth olfactory identification pipeline 430, the second olfactory identification pipeline 220 corresponds to the fourth olfactory identification pipeline 410, and the third olfactory identification pipeline 230 corresponds to the fifth olfactory identification pipeline 420). It can be seen that the corresponding relationship between the current input interface and the output interface of the switching connecting valve 400 can be determined according to the adjustment times of the switching connecting valve 400 output by the encoder.

[0062] In some implementations, the gas mixing and delivery device may further include a display screen, and the display screen may be connected to the switching communication valve.

[0063] Here, the display screen can be used to display the corresponding relationship between the input interface and the output interface in the conversion connecting valve.

[0064] As an example, since an encoder for recording the number of adjustments can be set inside the conversion connecting valve, the correspondence between the input interface and the output interface in the conversion connecting valve can be determined according to the number of adjustments; and the correspondence of the conversion connecting valve can be displayed on a display screen. In this way, the staff can easily determine the gas in each olfactory pipeline. It should be noted that there are many specific ways to determine the correspondence between the input interface and the output interface in the conversion connecting valve. For the sake of brevity of the specification, they are not repeated here. You only need to make a reasonable selection based on the actual situation.

[0065] It can be seen that by setting up a display screen, the staff can more conveniently determine the gas in each olfactory pipeline without the need for the staff to record each time what kind of gas is currently in the olfactory bag (polyester odorless bag) being olfactory detected, which can further speed up the efficiency of the gas olfactory detection process.

[0066] In some embodiments, the display screen can also be connected to the first gas input device, the second gas input device and the first cavity, and can respectively display the amount of gas input into the first cavity by the first gas input device, the amount of gas delivered by the second gas input device (including the total output and the output to the first cavity), and the amount of gas output from the first cavity. In this way, by displaying the amount of gas input into the first cavity by the first gas input device and the amount of gas delivered by the second gas input device on the display screen, the mixing ratio of the first gas and the second gas in the first cavity can be known, which is convenient for the user to detect whether the ratio of the first gas and the second gas is appropriate. And by displaying the amount of gas output from the first cavity, it is also convenient for the staff to determine whether the current amount of gas input can complete an olfactory detection. For ease of understanding, it can be as follows Figure 3 As shown, Figure 3 A connection diagram of a gas mixing and delivery device according to an embodiment of the present disclosure is shown in FIG. Figure 3 It can be seen that the display screen can be connected to the switching connecting valve, the first gas input device and the second gas input device respectively.

[0067] That is, by setting up a display screen, the delivery amount of the first gas, the delivery amount of the second gas, and the delivery amount of the mixed gas of the first gas and the second gas can be displayed respectively; in this way, it is also convenient for the staff to better understand the delivery amount of each type of gas, so as to facilitate the supervision of the entire olfactory detection process. It should be noted that the specific information that can be displayed on the display screen can be set according to actual conditions, and the specific information that can be displayed on the display screen is not limited here. For example, in some implementations, the display screen can also display the pressure value in the first cavity, the gas volume in the first cavity, etc.

[0068] In some embodiments, see Figure 4 , Figure 4 FIG. 1 is a schematic diagram of the structure of another gas mixing and conveying device disclosed in the present invention, such as Figure 4 As shown, the first cavity 300 may be a cavity including a piston 320. In this case, the gas mixing and conveying device may further include a first motor 500. The first motor 500 may be connected to the piston 320. The first motor 500 may be used to drive the piston 320 to perform a reciprocating motion.

[0069] As an example, the first motor 500 works to drive the piston 320 to move back and forth, which can not only adjust the volume of the first cavity 300, but also facilitate the delivery of all the gas in the first cavity 300 out of the first cavity 300. At the same time, the movement of the piston 320 can also facilitate the direct inhalation of gas from the first gas input device 100 and the second gas input device 200.

[0070] As an example, when the first motor 500 is used to drive the piston 320 to move to inhale the first gas and the second gas into the first cavity 300, the ratio of the inhaled first gas to the second gas can be determined directly by controlling the movement duration of the first motor 500. For example, when the first gas is inhaled, the operation duration of the first motor 500 is T1, and when the second gas is inhaled, the operation duration of the first motor 500 is T2. If T1:T2 is 5:1, the ratio of the first gas to the second gas in the first cavity 300 may be 5:1.

[0071] As an example, by providing the piston 320, it is not only possible to more conveniently mix the first gas and the second gas in a certain ratio, but also possible to simplify the structure of the first gas input device 100 and the second gas input device 200. For example, the first gas input device 100 and the second gas input device 200 may only have a gas storage function, without the need for the first gas input device 100 and the second gas input device 200 to also have an active gas delivery function.

[0072] As an example, the first motor 500 may be a stepper motor, a brushless motor, etc., and the specific type of the first motor 500 may be limited according to actual conditions, and the specific type of the first motor 500 is not limited here.

[0073] In some embodiments, the first cavity is a cavity with a capacity scale.

[0074] As an example, the first cavity is a cavity with a capacity scale, so that it is further convenient for the staff to determine the ratio of the first gas to the second gas when the first gas or the second gas is input into the first cavity, and at the same time, when the mixed gas in the first cavity is output, it is also convenient to know the amount of gas that has been output. That is, the first cavity is a cavity with a capacity scale, which can facilitate the staff to more intuitively know the amount of gas in the first cavity.

[0075] In some embodiments, the gas mixing and delivery device may further include a heating device, which may be connected to the first cavity and used to heat the first cavity.

[0076] As an example, the heating device may be an electric heating network. In this case, the electric heating network may be wrapped around the outer wall or a partial area of ​​the first cavity, so that the heating device can heat the first cavity.

[0077] As an example, the gas mixing and delivery device includes a heating device, which can facilitate heating of the first cavity, thereby reducing the gas residue in the first cavity, thereby ensuring the accuracy of the gas smelling process.

[0078] In some embodiments, the gas mixing and delivery device may further include a temperature control device, which may be connected to the first cavity and may control the temperature of the first cavity.

[0079] As an example, the temperature control device can heat the first cavity, or cool the first cavity. This not only makes it easier to clean the residual gas in the first cavity, but also allows the first cavity to be quickly cooled down after being heated, thereby improving the efficiency of the olfactory process.

[0080] In some embodiments, see Figure 5 , Figure 5 FIG. 1 is a schematic diagram of the structure of another gas mixing and conveying device disclosed in the present invention, such as Figure 5 As shown, the gas mixing and conveying device may further include a second motor 600 , and the second motor 600 may also be connected to the first cavity 300 ; the second motor 600 may be used to drive the first cavity 300 to vibrate.

[0081] As an example, the second motor 600 is provided to improve the mixing efficiency of the first gas and the second gas, thereby improving the efficiency of the olfactory identification process. For example, after the first gas and the second gas are filled into the first cavity 300, the second motor 600 can be turned on. At this time, the second motor 600 drives the first cavity 300 to vibrate, thereby increasing the mixing efficiency of the first gas and the second gas.

[0082] It should be noted that, in some implementations, the first motor and the second motor may be included at the same time, that is, Figure 6 As shown, Figure 6 This is a structural diagram of another gas mixing and conveying device disclosed in the present invention. In this way, the first cavity 300 can not only change the cavity volume under the drive of the first motor 500, but also generate vibration under the drive of the second motor 600; in this way, it is not only possible to conveniently fill or discharge the gas into or out of the first cavity 300, but also to achieve rapid mixing of the gas in the first cavity 300.

[0083] In some embodiments, see Figure 7 , Figure 7This is a structural schematic diagram of another gas mixing and conveying device disclosed in the present invention. The gas mixing and conveying device may also include an exhaust gas receiving device 700; the first gas input device 100 is connected to the above-mentioned exhaust gas receiving device 700 through a third pipeline 710, and the first cavity 300 is connected to the above-mentioned exhaust gas receiving device 700 through a fourth pipeline 720; switches are set on the third pipeline and the above-mentioned fourth pipeline.

[0084] It should be noted that if Figure 7 As shown, the third pipeline 710 and the fourth pipeline 720 can share part of the pipeline, and the fourth pipeline 720 can also share part of the pipeline with the second pipeline 210, and the third pipeline 710 can also share part of the pipeline with the first pipeline 110. In this way, the pipeline can be saved, so that the gas can be left in the pipeline, which is more environmentally friendly.

[0085] As an example, the waste gas receiving device 700 is provided to receive the gas that is not completely used in the olfactory process, so that the entire gas mixing and transporting device can be made more environmentally friendly.

[0086] You can continue to read Figure 8 , Figure 8 A connection diagram of a gas mixing and delivery device according to an embodiment of the present application is shown in FIG. Figure 8 As shown, the gas mixing and delivery device can include a first gas input device 100, a second gas input device 200, a first chamber 300, a switching connecting valve 400, a first motor 500, a second motor 600, and an exhaust gas receiving device 700. The specific connection relationship of these devices can be referred to. Figure 8 .

[0087] In some embodiments, see Fig. 9 , Fig. 9 A connection diagram of a gas mixing and delivery device according to another embodiment of the present application is provided; Fig. 9 As shown, the gas mixing and delivery device can also include a second cavity 800, the first gas input device 100 can be connected to the second gas cavity 800 through the fifth pipeline 810; the second gas input device 200 is connected to the second cavity 800 through the sixth pipeline 820; the second cavity 800 can be connected to the seventh olfactory identification pipeline 830, and the second gas input device 200 can be connected to the eighth olfactory identification pipeline 240 and the ninth olfactory identification pipeline 250; switches can be set on the fifth pipeline 810, the sixth pipeline 820, the seventh olfactory identification pipeline 830, the eighth olfactory identification pipeline 240 and the ninth olfactory identification pipeline 250.

[0088] As an example, the gas mixing and delivery device includes both the first cavity 300 and the second cavity 800, so that two olfactory personnel can perform olfactory detection at the same time, thus further accelerating the efficiency of the olfactory detection process.

[0089] You can continue to read Fig.10 As shown, Fig.10 A connection diagram of a gas mixing and delivery device according to an embodiment of the present application is provided. Fig.10 It can be seen that the gas mixing input device can also include multiple conversion connecting valves, so that multiple olfactory personnel can perform gas olfactory detection at the same time by using only the first cavity.

[0090] In some embodiments, a smelling system is provided, which may include at least one of the above-mentioned gas mixing and delivery devices, so that the smelling process can be further accelerated.

[0091] Each gas mixing device can operate relatively independently, so that multiple olfactory personnel can perform olfactory detection at the same time, thereby speeding up the efficiency of the olfactory detection process.

[0092] As an example, each gas mixing and conveying device shares the same first gas input device and the same second gas input device.

[0093] As an example, each gas mixing and conveying device shares the first gas input device and the second gas input device, which can save the number of the first gas input devices and the second gas input devices, thereby further controlling the cost.

[0094] In some embodiments, each gas mixing and delivery device may also share a waste gas receiving device.

[0095] In some embodiments, certain pipelines may also be shared, and corresponding switches may be provided on the pipelines so that each gas mixing and conveying device can be operated independently. In this way, pipelines can be saved, thereby further saving manufacturing costs.

[0096] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

[0097] In addition, although each operation is described in a specific order, this should not be understood as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0098] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A gas mixing and conveying device, It is characterized in that include: A first gas input device, a first cavity, and a second gas input device; The first gas input device is connected to the first cavity through a first pipeline, and the second gas input device is connected to the first cavity through a second pipeline; The first cavity is connected to the first olfactory identification pipeline, and the second gas input device is connected to the second olfactory identification pipeline and the third olfactory identification pipeline; The first pipeline, the second pipeline, the first olfactory identification pipeline, the second olfactory identification pipeline and the third olfactory identification pipeline are all provided with switches; Among them, the switch is used to control the opening and closing of the pipeline; Also includes: a switching connecting valve; The conversion connecting valve comprises three input interfaces and three output interfaces, each input interface corresponds to one output interface; the first olfactory identification pipeline, the second olfactory identification pipeline and the third olfactory identification pipeline are respectively connected to the three input interfaces of the conversion connecting valve; The three output interfaces of the conversion connecting valve are respectively connected to the fourth olfactory identification pipeline, the fifth olfactory identification pipeline and the sixth olfactory identification pipeline; Wherein, the switching connecting valve works, and the corresponding relationship between the input interface and the output interface changes; It also includes a display screen, which is connected to the switching connecting valve. Wherein, the display screen is used to display the corresponding relationship between the input interface and the output interface in the conversion connecting valve; The first cavity is a cavity including a piston, and the gas mixing and conveying device further includes a first motor, and the first motor is connected to the piston; Wherein, the first motor is used to drive the piston to move back and forth.

2. The gas mixing and conveying device according to claim 1, It is characterized in that The gas mixing and delivery device comprises a heating device, which is connected to the first cavity, wherein the heating device is used to heat the first cavity.

3. The gas mixing and conveying device according to claim 1, It is characterized in that The gas mixing and conveying device further includes a second motor, which is connected to the first cavity, wherein the second motor is used to drive the first cavity to vibrate.

4. The gas mixing and conveying device according to claim 1, It is characterized in that The gas mixing and conveying device also includes an exhaust gas receiving device; The first gas input device is connected to the exhaust gas receiving device through a third pipeline, and the first cavity is connected to the exhaust gas receiving device through a fourth pipeline; Wherein, switches are provided on the third pipeline and the fourth pipeline.

5. The gas mixing and conveying device according to claim 1, It is characterized in that The gas mixing and delivery device further comprises a second cavity, The first gas input device is connected to the second gas cavity through a fifth pipeline; the second gas input device is connected to the second cavity through a sixth pipeline; The second cavity is connected to the seventh olfactory identification pipeline, and the second gas input device is connected to the eighth olfactory identification pipeline and the ninth olfactory identification pipeline; The fifth pipeline, the sixth pipeline, the seventh olfactory identification pipeline, the eighth olfactory identification pipeline and the ninth olfactory identification pipeline are all provided with switches.

6. A smell identification system, It is characterized in that The method comprises at least one gas mixing and conveying device as claimed in any one of claims 1 to 5.

7. The olfactory discrimination system according to claim 6, characterized in that, each gas mixing and conveying device shares the same first gas input device and the same second gas input device.

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