A multi-channel gas path convergence plate valve for remote banding pre-extraction function

Abstract

The utility model relates to optical gas analysis equipment technical field, more specifically, especially relates to a kind of multi-channel gas path convergence plate valve for remote with pre-extraction function.The relay of the utility model is connected with the electromagnetic valve, and the relay is used to output control signal to the electromagnetic valve;Electromagnetic valve is connected with the multiway sampling channel plate valve, and the electromagnetic valve is used to control the gas flow of the multiway sampling channel plate valve;One end of suction pump inlet is connected with the multiway sampling channel plate valve, and the other end of suction pump inlet is connected with the gas inlet of suction pump;One end of suction pump outlet is connected with the gas outlet of suction pump, and the other end of suction pump outlet is connected with one end of optical detection system;Gas outlet hole is connected with the other end of optical detection system.The utility model can realize the quick switching of each sampling channel, and can realize pre-extraction function, solve the problem that remote sampling leads to inaccurate gas detection and long response time.

Description

Technical Field

[0001] This utility model relates to the field of optical gas analysis equipment technology, and more specifically, to a multi-channel gas converging plate valve with remote pre-evacuation function. Background Technology

[0002] For multi-compartment gas detection, the distance between the measured area and the equipment may exceed 100 meters. Without a pre-sampling function, the gas to be measured during the initial sampling process is stagnant gas in the pipeline, leading to inaccurate gas detection. Extracting the gas to be measured takes a considerable amount of time, which increases the response time.

[0003] Existing plate valves all use pneumatic control to switch gas paths with solenoid valves. They are large in size and lack pre-evacuation function. In the process of gas detection, a fast and accurate response is required, which conventional plate valves cannot meet. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to propose a multi-channel gas converging plate valve with remote pre-sampling function, which solves the problems of inaccurate gas detection and long response time caused by remote sampling.

[0005] To achieve the above and other related objectives, this utility model provides a multi-channel gas convergence plate valve for remote operation with pre-evacuation function, comprising a valve body and a multi-channel sampling plate valve, a relay, an air pump outlet, an air pump inlet, a solenoid valve, and an air outlet disposed on the valve body, wherein...

[0006] A relay connected to the solenoid valve, the relay being used to output a control signal to the solenoid valve;

[0007] A solenoid valve is connected to the multi-channel sampling plate valve, and the solenoid valve is used to control the gas flow of the multi-channel sampling plate valve;

[0008] The air pump inlet has one end connected to the multi-channel sampling plate valve, and the other end connected to the air inlet of the air pump.

[0009] The air pump outlet has one end connected to the air outlet of the air pump, and the other end connected to one end of the optical detection system.

[0010] An air vent, which connects to the other end of the optical detection system.

[0011] In one embodiment of this utility model, it further includes:

[0012] The inlet of the pre-sampling pump is connected at one end to the multi-channel sampling plate valve, and the other end of the pre-sampling pump inlet is connected to one end of the pre-sampling pump.

[0013] The pre-pump outlet is connected to the other end of the pre-pump inlet.

[0014] In one embodiment of this utility model, the multi-channel sampling plate valve includes:

[0015] The valve body has 15 air inlets, which are installed on the valve body via quick-connect fittings. The air inlets are connected to the inlet of the vacuum pump and the inlet of the pre-vacuum pump.

[0016] In one embodiment of this utility model, one of the 15 air inlets is used as a calibration interface, and the other 14 air inlets are used as air intake interfaces.

[0017] In one embodiment of this utility model, the calibration interface 1 is connected to the inlet of the air pump via the solenoid valve.

[0018] In one embodiment of this utility model, the 14 air inlets are divided into two paths into the solenoid valves through a three-way fitting. The odd-numbered solenoid valves are connected to the air extraction and convergence channel, and the even-numbered solenoid valves are connected to the pre-extraction and convergence channel. The air extraction and convergence channel is connected to the air extraction pump inlet, and the pre-extraction and convergence channel is connected to the pre-extraction pump inlet.

[0019] In one embodiment of this utility model, a filter is provided between the 15 air inlets and the solenoid valve.

[0020] In one embodiment of this utility model, two air pump inlets and two air pump outlets are provided.

[0021] In one embodiment of this utility model, two pre-pump inlets and two pre-pump outlets are provided.

[0022] In one embodiment of this utility model, the solenoid valve is connected to the controller.

[0023] As described above, the multi-channel gas converging plate valve with remote pre-evacuation function of this utility model has the following beneficial effects:

[0024] This utility model discloses a multi-channel gas convergence plate valve with remote pre-evacuation function, which can quickly switch each sampling channel and perform pre-evacuation, thus solving the problems of inaccurate gas detection and long response time caused by remote sampling.

[0025] This utility model relates to a multi-channel gas converging plate valve with remote pre-evacuation function, which is used in the field of optical gas detection. It can realize rapid switching of multiple channels and pre-evacuate the gas of the next channel, drawing the gas of the next channel to the vicinity of the detection area in advance. When the valve channel is switched, the gas to be tested can be drawn into the detection area quickly and accurately, which greatly improves the detection accuracy and reduces the response time.

[0026] This utility model discloses a multi-channel gas convergence plate valve with remote pre-extraction function. It can switch the sampling gas path using a solenoid valve. Each air inlet is directly connected to a filter on the valve assembly to filter out dust and other impurities in the gas sample, further increasing the accuracy of gas detection. Attached Figure Description

[0027] Figure 1 This is a top view of a multi-channel gas converging plate valve with pre-evacuation function according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the air path connection relationship of a multi-channel air path converging plate valve with remote pre-evacuation function according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the airflow of a multi-channel airflow converging plate valve with remote pre-extraction function according to an embodiment of the present invention.

[0030] Figure 4 This is a top view of a multi-channel gas converging plate valve with pre-evacuation function according to an embodiment of the present invention;

[0031] Figure 5 This is an internal sectional view of a multi-channel gas converging plate valve with pre-extraction function according to an embodiment of the present invention.

[0032] Figure 6 This is a side view of a multi-channel gas converging plate valve with remote pre-evacuation function according to an embodiment of the present invention.

[0033] Wherein: 1-Relay, 2-Valve body, 3-Air pump outlet, 4-Air pump inlet, 5-Multi-channel sampling channel plate valve, 6-Solenoid valve, 7-Air outlet, 8-Pre-air pump inlet, 9-Pre-air pump outlet, 51-Air inlet, 52-Air extraction converging channel, 53-Pre-air extraction converging channel, 54-Filter. Detailed Implementation

[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0035] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0036] Terms such as "first" or "second" may be used to describe various components, but these components are not limited by the terms described above. The terms described above are used to distinguish one component from another; for example, without departing from the scope of the concept according to this disclosure, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

[0037] Furthermore, "connected / linked" indicates that one component is directly electrically connected to another component or indirectly electrically connected through another component. Unless otherwise explicitly stated in the sentence, the singular form may include the plural form. Additionally, the terms "comprising / including" or "containing / including" as used in this specification indicate the presence or addition of one or more components, steps, operations, and elements. Specific structural or functional descriptions of examples of embodiments of the concepts disclosed in this specification are merely illustrative to describe examples of embodiments of the concepts, and examples of embodiments of the concepts can be implemented in various forms, but these descriptions are not limited to the examples of embodiments described in this specification.

[0038] Based on the concept, various modifications and changes can be applied to examples of embodiments, such that examples of embodiments will be illustrated in the accompanying drawings and described in the specification. However, examples of embodiments based on the concept are not limited to specific embodiments, but include all changes, equivalents, or substitutions included within the spirit and scope of this disclosure.

[0039] It should be understood that when describing an element as "connected" or "linked" to another element, the element may be directly connected or linked to the other element, or it may be connected or linked to the other element via a third element. Conversely, it should be understood that when an element is described as "directly connected to" or "directly linked to" another element, no other element is placed between them. Other expressions describing relationships between components (i.e., "between" and "directly between" or "adjacent to" and "directly adjacent to") need to be interpreted in the same way.

[0040] The terminology used in this specification is for the purpose of describing specific examples of implementations only and is not intended to limit this disclosure. The singular form may include the plural form unless there is an explicit contrary meaning in the context. It should be understood in this specification that the terms "comprising" or "having" indicate the presence of the features, quantities, steps, operations, components, parts, or combinations thereof described in the specification, but do not preclude the possibility of the presence or addition of one or more other features, quantities, steps, operations, components, parts, or combinations thereof.

[0041] Unless otherwise defined, all terms used herein (including technical or scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art. If a term is not clearly defined in a common dictionary in this specification, it shall be interpreted as having the same meaning as in the context of the relevant art, and not as an ideal or overly formal meaning.

[0042] Descriptions of known components and processing techniques may be omitted to avoid unnecessarily obscuring the embodiments of this disclosure.

[0043] Throughout this specification, the same reference numerals refer to the same elements. Therefore, even if a reference numeral is not mentioned or described with reference to one drawing, it may be mentioned or described with reference to another drawing. Furthermore, even if a reference numeral is not shown in one drawing, it may be mentioned or described with reference to another drawing.

[0044] Additionally, the logic level of a signal may be different from or opposite to the logic level described. For example, a signal described as having a logic "high" level may optionally have a logic "low" level, and a signal described as having a logic "low" level may optionally have a logic "high" level.

[0045] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the embodiments of this disclosure to facilitate a better understanding of the disclosure. However, the technical solutions claimed in this disclosure can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, Figure 1 This is a top view of a multi-channel gas converging plate valve with pre-evacuation function according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the air path connection relationship of a multi-channel air path converging plate valve with remote pre-evacuation function according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the airflow of a multi-channel airflow converging plate valve with remote pre-extraction function according to an embodiment of the present invention. Figure 4 This is a top view of a multi-channel gas converging plate valve with pre-evacuation function according to an embodiment of the present invention; Figure 5 This is an internal sectional view of a multi-channel gas converging plate valve with pre-extraction function according to an embodiment of the present invention. Figure 6 This is a side view of a multi-channel gas converging plate valve with remote pre-evacuation function according to an embodiment of the present invention. This invention provides a remote multi-channel gas convergence valve with pre-evacuation function, capable of rapid switching of each sampling channel. The valve comprises a valve body 2 and a multi-channel sampling channel valve 5, a relay 1, a pump outlet 3, a pump inlet 4, a solenoid valve 6, and an outlet 7, all mounted on the valve body 2. The relay 1 is connected to the solenoid valve 6 and outputs a control signal to it. The solenoid valve 6 is connected to the multi-channel sampling channel valve 5 and controls the gas flow within it. One end of the pump inlet 4 is connected to the multi-channel sampling channel valve 5, and the other end is connected to the pump inlet. One end of the pump outlet 3 is connected to the pump outlet, and the other end is connected to one end of an optical detection system. The outlet 7 is connected to the other end of the optical detection system.

[0047] Specifically, the multi-channel gas convergence plate valve for remote pre-drainage function also includes: a pre-drainage pump inlet 8 and a pre-drainage pump outlet 9. One end of the pre-drainage pump inlet 8 is connected to the multi-channel sampling plate valve 5, and the other end of the pre-drainage pump inlet 8 is connected to one end of the pre-drainage pump. The pre-drainage pump outlet 9 is connected to the other end of the pre-drainage pump inlet 8.

[0048] In one embodiment of this utility model, the air pump outlet 3 can be an air nozzle, the air pump inlet 4 can be a one-way valve, and two air pump inlets 4 and two air pump outlets 3 are provided. Two pre-pump inlets 8 and two pre-pump outlets 9 are also provided. The air pump interface and the pre-pump interface are both designed with redundancy, which can connect two air pumps and two pre-pumps to work intermittently, thereby improving the service life of the pumps.

[0049] Specifically, the multi-channel sampling plate valve 5 includes 15 air inlets 51, which are installed on the valve body 2 via quick-connect fittings. The air inlets 51 are connected to the air pump inlet 4 and the pre-pump inlet 8.

[0050] Specifically, one of the 15 air inlets 51 is used as a calibration interface, and the other 14 air inlets 51 are used as air intake interfaces.

[0051] Specifically, the calibration interface of channel 1 is connected to the air pump inlet 4 via the solenoid valve 6. The air inlets 51 of channel 14 are split into two channels via a three-way fitting and enter the solenoid valve 6. The odd-numbered solenoid valves 6 are connected to the air extraction converging channel 52, and the even-numbered solenoid valves 6 are connected to the pre-extraction converging channel 53. The air extraction converging channel 52 is connected to the air pump inlet 4, and the pre-extraction converging channel 53 is connected to the pre-extraction pump inlet 8.

[0052] Specifically, a filter 54 is provided between the air inlet 51 of the 15th channel and the solenoid valve 6.

[0053] Specifically, the solenoid valve 6 is connected to the controller.

[0054] In one embodiment of this utility model, the multi-channel gas path converging plate valve with pre-extraction function has 15 air inlets and 2 air outlets. The air outlets are directly connected to the atmosphere. Among them, T0 is the calibration path, and T1 to T14 are the sampling paths. The instrument supports up to 14 sampling paths. The two air outlets are the extraction outlet and the pre-extraction outlet, respectively.

[0055] In one embodiment of this utility model, all gas path interfaces are 15 gas inlets and 2 gas outlets. All of them are directly installed on the multi-channel gas path converging plate valve using quick-connect connectors. The sampling gas path is switched using a miniature solenoid valve. Each gas inlet is directly connected to a filter on the valve assembly to filter out dust and other impurities in the gas sample.

[0056] In one embodiment of this utility model, the T0 intake is connected to the F0 solenoid valve 6 as a calibration port, and enters the suction and convergence channel 53. The T1 to T14 intakes are each split into two paths via a tee, entering the F1 to F28 solenoid valves 6, as shown below. Figure 3 As shown, odd-numbered solenoid valves are connected to the extraction and convergence channel 53; even-numbered solenoid valves are connected to the pre-extraction and convergence channel 53. In automatic mode, while the instrument is sampling and analyzing the Nth sampling port, it is pre-extracting the N+1th sampling point to prepare for the next analysis. After one cycle, the extraction switches to the N+1th channel, and the N+2th channel switches to pre-extraction. This process continues in this manner. In manual mode, selecting the solenoid valve to start allows for targeted extraction.

[0057] In summary, this utility model's multi-channel gas converging plate valve with remote pre-evacuation function enables rapid switching of each sampling channel and provides a pre-evacuation function, solving the problems of inaccurate gas detection and long response time caused by remote sampling. This utility model can be used in the field of optical gas detection, enabling rapid switching of multiple channels while pre-evacuating the next channel's gas, drawing the next channel's gas into the vicinity of the detection area in advance. When the valve switches channels, it can quickly and accurately draw the gas to be tested into the detection area, greatly improving detection accuracy and reducing response time.

[0058] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-channel gas converging plate valve with remote pre-evacuation function, characterized in that: The system includes a valve body (2) and a multi-channel sampling plate valve (5), a relay (1), a vacuum pump outlet (3), a vacuum pump inlet (4), a solenoid valve (6), and an air outlet (7) mounted on the valve body (2). A relay (1) is connected to the solenoid valve (6), and the relay (1) is used to output a control signal to the solenoid valve (6); A solenoid valve (6) is connected to the multi-channel sampling plate valve (5), and the solenoid valve (6) is used to control the gas flow of the multi-channel sampling plate valve (5); The air pump inlet (4) is connected at one end to the multi-channel sampling plate valve (5), and at the other end to the air pump inlet (4). The air pump outlet (3) has one end connected to the air outlet of the air pump and the other end connected to one end of the optical detection system. An air vent (7) is connected to the other end of the optical detection system.

2. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 1, characterized in that, Also includes: The pre-sampling pump inlet (8) is connected at one end to the multi-channel sampling plate valve (5), and at the other end to one end of the pre-sampling pump. The pre-pump outlet (9) is connected to the other end of the pre-pump inlet (8).

3. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 2, characterized in that, The multi-channel sampling valve (5) includes: A 15-way air inlet (51) is installed on the valve body (2) via a quick-connect fitting. The air inlet (51) is connected to the air pump inlet (4) and the pre-pump inlet (8).

4. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 3, characterized in that: One of the 15 air inlets (51) is used as a calibration interface, and the other 14 air inlets (51) are used as air intake interfaces.

5. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 4, characterized in that: The calibration interface of the first channel is connected to the inlet (4) of the air pump through the solenoid valve (6).

6. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 4, characterized in that: The 14-way air inlet (51) is divided into two paths into the solenoid valve (6) through a three-way fitting. The odd-numbered solenoid valve (6) is connected to the air extraction convergence channel (52), and the even-numbered solenoid valve (6) is connected to the pre-extraction convergence channel (53). The air extraction convergence channel (52) is connected to the air extraction pump inlet (4), and the pre-extraction convergence channel (53) is connected to the pre-extraction pump inlet (8).

7. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 4, characterized in that: A filter (54) is provided between the air inlet (51) of the 15th channel and the solenoid valve (6).

8. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 1, characterized in that: The air pump inlet (4) and air pump outlet (3) are both provided in two places.

9. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 2, characterized in that: Two pre-drainage pump inlets (8) and two pre-drainage pump outlets (9) are provided.

10. A multi-channel gas converging plate valve with pre-evacuation function for remote operation according to claim 1, characterized in that: The solenoid valve (6) is connected to the controller.

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