Airflow adjusting device and application equipment thereof

Abstract

The utility model discloses an airflow adjusting device and application equipment thereof, the airflow adjusting device comprises a shell, an air inlet channel, an exhaust channel, a balance channel and a throttling channel are arranged in the shell, and the airflow adjusting device can effectively adjust the air flow. The equipment with the adjusting device is further provided with an air extractor and a flow detection device, through cooperative work with the balance channel, precise control and dynamic adjustment of the gas flow are improved, the gas flow and the gas pressure output to target equipment can be automatically adjusted when the gas flow and the pressure intensity are too large or too small, and the adjustment effect is good. The flow requirement of target equipment is met, pressure is relieved, impact of high-pressure gas on the target equipment is reduced, and the gas flow control device can be widely applied to the fields of industry, scientific research and the like needing precise gas flow control.

Description

TECHNICAL FIELD

[0001] The utility model relates to airflow regulation technical field, concretely relates to a kind of airflow regulation device and its application equipment. BACKGROUND

[0002] At present, many devices such as particle counter, plankton detector, aerosol generator etc. need to work under the set target flow, and it is often necessary to extract fluid and detect the flow by air extraction device. In this case, the extracted airflow is affected by various factors, and there are disadvantages such as large airflow fluctuation, frequent adjustment of air extraction device, and large adjustment range. Especially when using air source, especially compressed air source to provide airflow for these devices, it is easy to cause unstable airflow and unstable flow. Too much or too little airflow provided may lead to unstable target flow. In addition, if the air source is compressed gas, the high pressure and high speed impact of compressed gas will also increase the failure rate of the target device and reduce the service life of the target device.

[0003] Therefore, the present application aims to overcome the shortcomings of the prior art and provide an airflow regulation device and its application equipment, which can be used to realize high-precision gas flow control and can be widely applied to various occasions requiring accurate gas flow control. SUMMARY

[0004] Therefore, the present application aims to overcome the shortcomings of the prior art and provide an airflow regulation device and its application equipment, which can be used to realize high-precision gas flow control and can be widely applied to various occasions requiring accurate gas flow control.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows:

[0006] An airflow regulation device for connecting with air source device and target device through air pipe, comprising:

[0007] A housing;

[0008] An air inlet channel is provided in the housing, which includes a first air inlet channel and a second air inlet channel. One end of the first air inlet channel is an air inlet, which is connected with the air source device. The other end is connected with the second air inlet channel.

[0009] An air outlet channel is provided in the housing, which includes a first air outlet channel and a second air outlet channel. One end of the first air outlet channel is an air outlet, which is connected with the air pipe of the target device. The other end is connected with the second air outlet channel.

[0010] A balance channel is provided in the housing, which is connected with the first air outlet channel.

[0011] A throttle passage is located between the intake passage and the exhaust passage, the throttle passage comprises a first passage and a second passage, one end of the first passage communicates with the second intake passage, the other end of the first passage communicates with the second passage, one end of the second passage away from the first passage communicates with the second exhaust passage; the inner diameter of the second passage is greater than the inner diameter of the first passage.

[0012] Further, the throttle passage further comprises a third passage opened in the shell, one end of the third passage communicates with the second intake passage, the other end of the third passage communicates with the second passage; the first passage is opened in a first pipe, the first pipe is sleeved in the third passage.

[0013] Further, the length of the first passage is less than or equal to the length of the third passage, the inner diameter of the third passage is greater than the inner diameter of the second passage; the first pipe abuts against the second passage.

[0014] Further, the axes of the intake passage, the throttle passage and the exhaust passage are coaxial.

[0015] Further, the axis of the balance passage is perpendicular to the axis of the first exhaust passage.

[0016] Further, the inner diameter of the second intake passage gradually decreases along the gas flow direction.

[0017] Further, the inner diameter of the second exhaust passage gradually increases along the gas flow direction.

[0018] Further, the end of the balance passage away from the first exhaust passage is a balance gas port.

[0019] Further, threads are opened on the inner walls of the gas inlet, the gas outlet and the balance gas port, and the threads on the inner walls of the gas inlet, the gas outlet and the balance gas port are threadedly connected with the gas pipe joints.

[0020] To solve the above technical problems, the application further provides an application device of the gas flow regulating device, which applies the gas flow regulating device as described above, and the application device comprises:

[0021] A gas extraction device is arranged on the gas path pipe after the exhaust passage, and the gas extraction device communicates with the exhaust passage;

[0022] A flow detection device is arranged on the gas path pipe, and the flow detection device is used in cooperation with the gas extraction device, and when the flow detection device detects that the gas flow does not meet the target flow, the gas extraction device adjusts the gas flow.

[0023] Compared with the prior art, the gas flow control device has the advantages that: the gas flow is finely adjusted in the process of flowing from the gas source device to the target device through the air inlet channel, the air outlet channel, the throttling channel and the balance channel. The changes in the inner diameters of the first air inlet channel and the second air inlet channel in the air inlet channel and the changes in the inner diameters of the first air outlet channel and the second air outlet channel in the air outlet channel help to form a reasonable pressure gradient, so that the gas flow is more smooth, stable and predictable. In addition, the gas flow in the air outlet of the gas flow adjusting device is limited to a small flow range through the limitation of the inner diameter of the first channel in the throttling channel, which provides a structural basis for accurately controlling the gas flow of the target device, and further optimizes the flow state control of the gas flow in combination with the second channel and the air outlet channel. In addition, the gas pressure of the gas output from the air outlet of the gas flow adjusting device is adjusted through the balance channel. The gas flow control device is used for realizing gas flow control and adjusting the gas pressure of the input target device. The flow control capability can meet various application scenarios of industrial production processes, scientific experiments and environmental monitoring which have strict requirements on gas flow and pressure, and avoids problems such as product quality decline, experimental error or inaccurate environmental monitoring caused by gas flow fluctuation. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] ATTACHMENT Figure 1 The structure of the embodiment of the present application is shown in the figure.

[0026] The reference signs and component parts involved in the drawings are explained as follows:

[0027] 1, housing; 2, air inlet channel; 21, first air inlet channel; 22, second air inlet channel; 3, air outlet channel; 31, first air outlet channel; 32, second air outlet channel; 4, balance channel; 5, throttling channel; 51, first channel; 52, second channel; 53, third channel. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely in the following specific embodiments. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0029] Referring to the drawings Figure 1 As shown in the drawings, the gas flow regulating device provided by the present application is used for connecting with the gas source device and the gas path pipeline of the target equipment respectively through the gas pipe. The gas source device can be a normal pressure gas source device or a compressed gas source device. The gas flow regulating device comprises a shell 1 having an internal passage space, an air inlet passage 2, an air outlet passage 3, a balance passage 4 and a throttling passage 5 arranged in the shell 1. At least part of the gas flows from the air inlet passage 2 to the air outlet passage 3. The air inlet passage 2 comprises a first air inlet passage 21 and a second air inlet passage 22. One end of the first air inlet passage 21 is an air inlet port which is used for communicating with the gas source device and providing an inlet for the gas entering the control device. The other end of the first air inlet passage 21 communicates with the second air inlet passage 22. The inner diameter of the second air inlet passage 22 preferably gradually decreases along the gas flow direction, so as to avoid the flow dead angle of the gas flow from the air inlet passage to the throttling passage, make the gas flow more smooth, ensure the stability and uniformity of the gas flow and avoid the turbulent flow and other unstable flow phenomena of the gas when the gas enters. The air outlet passage 3 comprises a first air outlet passage 31 and a second air outlet passage 32. One end of the first air outlet passage 31 is an air outlet port which is used for communicating with the gas path pipeline of the target equipment and responsible for conveying the gas to the target equipment. The other end of the first air outlet passage 31 communicates with the second air outlet passage 32. The inner diameter of the second air outlet passage 32 preferably gradually increases along the gas flow direction, so as to avoid the flow dead angle of the gas flow from the throttling passage to the air outlet passage, make the gas flow more smooth, ensure the gas entering the target equipment in a stable state, and the gas flow direction is from the air inlet port to the air outlet port. The balance passage 4 communicates with the side wall of the first air outlet passage 31 and plays a key role in balancing the gas pressure and flow. The throttling passage 5 is located between the air inlet passage 2 and the air outlet passage 3. The throttling passage 5 comprises a first passage 51 and a second passage 52. One end of the first passage 51 communicates with the second air inlet passage 22, and the other end of the first passage 51 communicates with the second passage 52. The end of the second passage 52 away from the first passage 11 communicates with the second air outlet passage 32. The inner diameter of the second passage 52 is greater than the inner diameter of the first passage 51.

[0030] Preferably, the throttling channel 5 further includes a first pipe and a third channel 53 formed within the housing 1. One end of the third channel 53 is connected to the second intake channel 22, and the other end is connected to the second channel 52. The first channel 51 is formed within the first pipe, and the first pipe is fitted inside the third channel 53. It is understood that fitting the first pipe inside the third channel 53 allows for quick control of the inner diameter of the first channel 51. For example, the second channel 52 and the third channel 53 are formed within the housing 1 and located between the intake channel 2 and the exhaust channel 3. The inner wall of the third channel 53 and the outer wall of the first pipe with the first channel 51 have matching threads. The first pipe with the first channel 51 is detachably fitted inside the third channel 53 by a screw connection. Based on this structure, by replacing the first pipe with a first channel 51 having different inner diameters, the output flow rate of the device can be easily adjusted, thereby enabling the device to better adapt to different flow requirements and improving the versatility and efficiency of the device.

[0031] Therefore, the throttling channel 5 structure of this application has significant beneficial effects. By fitting the first pipe with the first channel 51 inside the third channel 53 and connecting them in a detachable screw-on manner, the inner diameter of the first channel 51 of the throttling channel can be quickly and conveniently adjusted by replacing the first pipe with a different inner diameter, thereby achieving flexible adjustment of the gas flow rate output by the throttling device. Compared with a fixed throttling channel design, this application improves the adaptability of the equipment to different flow requirements, enhances the versatility and efficiency of the equipment, and reduces the maintenance and replacement costs of the equipment.

[0032] Preferably, the length of the first channel 51 is less than or equal to the length of the third channel 53, the inner diameter of the third channel 53 is greater than the inner diameter of the second channel 52, and the first pipe abuts against the second channel 52. It is understood that the first pipe does not extend into the intake pipe 2. The larger inner diameter of the third channel 53 than the second channel 52 creates a step at the connection point between the third channel 53 and the second channel 52. The abutment between the first pipe and the second channel 52 is achieved by the first pipe abutting against this step, ensuring the stability of the first pipe under the impact of airflow.

[0033] For a better option, see the appendix. Figure 1 As shown, the axes of the intake passage 2, the throttling passage 5, and the exhaust passage 3 in this embodiment are coaxial.

[0034] For a better option, see the appendix. Figure 1 As shown, the axis of the balance channel 4 in this embodiment is perpendicular to the axis of the first exhaust channel 31. When the system faces different gas pressure conditions, it can be used to adjust the discharge or replenishment of gas, ensure that the flow rate of the target equipment remains stable, effectively avoid damage to the target equipment caused by sudden changes in gas pressure, and improve the reliability and stability of the entire gas supply system.

[0035] For a better option, see the appendix. Figure 1 As shown, in this embodiment, the end of the balancing channel 4 furthest from the first exhaust channel 31 is the balancing port. Threads are formed on the inner walls of the first intake channel 21, the first exhaust channel 31, and the balancing channel 4 near their intake, exhaust, and balancing ports, facilitating the installation of air pipe connectors and connection to external air pipes, thus simplifying and speeding up the installation of the entire system. Simultaneously, the connection method between the channels, such as the first pipe of the first channel 51 being threaded into the inner side of the third channel 53 through the outlet of the intake channel 2, not only ensures the strength of the connection but also facilitates equipment maintenance and repair. In case of malfunction or component replacement, operators can easily disassemble and reassemble the various components, reducing system maintenance time and costs. It is understood that the first intake channel 21, the first exhaust channel 31, and the balancing channel 4 can be channels with a uniform straight inner diameter or channels with varying inner diameters; no specific limitation is made here.

[0036] Therefore, when gas enters the inlet channel 2 from the gas source device, it first passes through the first inlet channel 21 and the second inlet channel 22. Due to the change in the inner diameter of the channels, the gas flow rate and pressure are adjusted accordingly. Next, it passes through the first channel 51 and the second channel 52. Due to the gradient change in their inner diameters, especially the limitation of the inner diameter of the first channel 51, the gas flow rate is further adjusted, limiting the gas flow rate at the exhaust port of the airflow regulating device to a small range, providing a structural basis for precise gas flow control in the target device. Finally, the gas flows to the target equipment through the second exhaust channel 32 and the first exhaust channel 31. When the gas flow rate and pressure in the system are abnormal, the balancing channel 4 plays a crucial role. When the pressure and flow rate provided by the gas source device are too high, the excess airflow will be discharged and depressurized through the balancing channel 4, reducing the impact of high-pressure gas on the target equipment to avoid damage. When the flow rate is too low, and the gas flow rate cannot meet the needs of the target equipment, the system will provide corresponding feedback and adjustment. Therefore, this application is used for airflow control, providing the target equipment with a target flow rate or close to the target flow rate to reduce the difficulty for the target equipment to obtain the target flow rate. This precise flow control capability can meet the needs of various industrial production processes, scientific experiments and environmental monitoring applications with strict requirements for gas flow rate, and avoid problems such as product quality degradation, experimental errors or inaccurate environmental monitoring caused by gas flow rate fluctuations.

[0037] The application equipment of the air flow regulating device comprises the air flow regulating device, and an air extraction device and a flow detection device are arranged on the air path pipeline after the exhaust passage 3. The air extraction device is communicated with the exhaust passage 3, and the flow detection device is used in cooperation with the air extraction device. When the flow detection device detects that the air flow does not meet the target flow, the air extraction device adjusts the air flow. The air extraction device can be a fan or a pump, and the flow detection device can be a flow meter or a micro-pressure-difference flow meter, which is not specifically limited here. The exhaust passage 3 is communicated with the air extraction device. When the air path pipeline of the target device needs a specific target flow, the air source device provides air flow with a certain pressure to the air inlet passage 2, the exhaust port of the air flow regulating device outputs air flow with a target flow or close to the target flow, and the flow detection device continuously monitors the air flow. When it is detected that the air flow is too large, the air extraction device can work in cooperation, for example, the fan reduces the speed, and the excess air flow is discharged from the balance passage 4 and depressurized to maintain the stability of the system; when it is detected that the air flow is too small, the target device is prompted that the flow is insufficient, at this time, the air extraction device can work in cooperation, for example, the fan starts to work or increases the speed, and the air flow discharged from the balance passage 4 is adjusted or even supplemented from the balance passage 4 to ensure that the air flow reaches the target flow, thereby realizing accurate control and dynamic adjustment of the air flow.

[0038] In actual application, first, the air inlet of the air inlet passage 2 of the air flow regulating device is connected with the air source device through an air pipe, the air outlet of the exhaust passage 3 is connected with the air path pipeline of the target device through an air pipe, and the balance passage 4 is communicated with the atmosphere or other buffer devices. At the same time, the exhaust passage 3 is communicated with the air extraction device, and the flow detection device is installed on the air path pipeline. When the system is started, the air source device starts to work, the air enters the air inlet passage 2, and the flow is adjusted and controlled according to the working principle described above. The flow detection device continuously monitors the air flow, and once the flow deviates from the target flow, the balance passage 4 and the air extraction device are adjusted according to different situations.

[0039] It can be understood that the adjustment of the air extraction device to the air flow based on the result of the flow detection device can be manual adjustment of the air extraction device according to the result of the flow detection device, or the application equipment comprises a control module connected with the air extraction device and the flow detection device, and the control module can control the working of the air extraction device to obtain the target flow according to the result of the flow detection device, which is not specifically limited here.

[0040] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air flow regulating device for connecting to an air supply device and an air path conduit of a target device, respectively, through air tubes, characterized in that, include: case; An air intake channel is provided inside the housing. The air intake channel includes a first air intake channel and a second air intake channel. One end of the first air intake channel is an air inlet for connecting to an air source device, and the other end is connected to the second air intake channel. An exhaust passage is provided inside the housing. The exhaust passage includes a first exhaust passage and a second exhaust passage. One end of the first exhaust passage is an exhaust port, which is used to connect to the air passage of the target device. The other end is connected to the second exhaust passage. A balance channel is provided inside the housing and is connected to the first exhaust channel; A throttling channel is located between the intake channel and the exhaust channel. The throttling channel includes a first channel and a second channel. One end of the first channel is connected to the second intake channel, and the other end is connected to the second channel. The end of the second channel away from the first channel is connected to the second exhaust channel. The inner diameter of the second channel is larger than the inner diameter of the first channel.

2. A flow regulating device according to claim 1, wherein The throttling channel also includes a third channel formed within the housing, one end of which is connected to the second intake channel and the other end of which is connected to the second channel; the first channel is formed within the first pipe, and the first pipe is fitted within the third channel.

3. A flow regulating device according to claim 2, wherein, The length of the first channel is less than or equal to the length of the third channel, and the inner diameter of the third channel is greater than the inner diameter of the second channel; the first pipe abuts against the second channel.

4. The airflow regulating device of claim 1, wherein, The axes of the intake passage, the throttling passage, and the exhaust passage are coaxial.

5. The airflow regulating device of claim 1, wherein, The axis of the balance channel is perpendicular to the axis of the first exhaust channel.

6. An airflow regulating device according to claim 1, wherein, The inner diameter of the second air intake channel gradually decreases along the gas flow direction.

7. The airflow regulating device of claim 1, wherein, The inner diameter of the second exhaust channel gradually increases along the gas flow direction.

8. The airflow regulating device of claim 1, wherein, The end of the balancing channel furthest from the first exhaust channel is the balancing air inlet.

9. A flow regulating device according to claim 8, wherein, The inner walls of the air inlet, the exhaust port, and the balance port are threaded, and the threaded portions of the inner walls of the air inlet, the exhaust port, and the balance port are all threadedly connected to the air pipe connector.

10. Use of an airflow regulating device, characterized in that The airflow regulating device according to any one of claims 1 to 9, the application device comprising: An air extraction device is installed on the air duct after the exhaust channel, and the air extraction device is connected to the exhaust channel. A flow detection device is installed on the gas pipeline. The flow detection device works in conjunction with the gas extraction device. When the flow detection device detects that the gas flow does not meet the target flow, the gas extraction device adjusts the gas flow.

Images