Air suction frame with anti-blocking and negative pressure adjusting functions and using method of air suction frame

Abstract

The invention discloses an air suction frame with anti-blocking and negative pressure adjusting functions, which comprises an air suction pipe, a control module, a fan communicated with the air suction pipe, an air pressure adjusting valve used for adjusting the ventilation quantity in the air suction pipe, and an anti-blocking unit connected with the side wall of the air suction pipe, the anti-blocking unit is used for removing fibers attached to the side wall of the air suction pipe; the control module is electrically connected with the air pressure adjusting valve, and the control module controls the negative pressure in the air suction pipe through the air pressure adjusting valve. According to the air suction frame with the anti-blocking and negative pressure adjusting functions, air and fibers in the air suction pipe can be reliably pumped out, and the problem that the air suction frame is blocked is solved.

Description

Technical Field

[0001] This invention relates to the field of suction frames, specifically to a suction frame with anti-clogging and negative pressure adjustment functions and its method of use. Background Technology

[0002] A suction frame is a key component in industrial ventilation and dust removal equipment. It typically refers to a device with a specific geometry, an internal cavity structure, and one or more suction ports, used to generate and maintain a stable negative pressure in a local area to effectively capture and collect pollutants such as dust, fibers, and smoke from the air.

[0003] The suction frame is equipped with suction ports, the shape and size of which vary depending on the application scenario. Currently, suction frames used in garment factories can achieve negative pressure adjustment within the range of 100-300Pa through air pressure regulating valves, thereby solving the problem of "excessive negative pressure sucking up fabric and insufficient negative pressure failing to capture fibers". However, due to the strong adhesion and easy agglomeration of short fibers in the garment industry, the suction frame components are prone to clogging in actual applications. Summary of the Invention

[0004] The purpose of this invention is to provide a suction frame with anti-clogging and negative pressure regulation functions and its usage method. This suction frame with anti-clogging and negative pressure regulation functions can reliably extract air and fibers from the suction pipe, avoiding the problem of suction frame blockage.

[0005] To achieve the above objectives, the present invention provides a suction frame with anti-clogging and negative pressure regulation functions. The suction frame with anti-clogging and negative pressure regulation functions includes a suction pipe, a fan connected to the suction pipe via a control module, a wind pressure regulating valve for adjusting the ventilation volume in the suction pipe, and an anti-clogging unit connected to the side wall of the suction pipe. The anti-clogging unit is used to remove fibers attached to the side wall of the suction pipe. The control module is electrically connected to the air pressure regulating valve, and the control module controls the negative pressure in the air intake pipe through the air pressure regulating valve.

[0006] Preferably, the anti-clogging unit includes multiple micro-vibrators disposed on the side wall of the air intake pipe, the multiple micro-vibrators being electrically connected to the control module, and the control module controlling the micro-vibrators to turn on or off. Preferably, the control module includes a sensor, a processor, and an actuator. The sensor is used to detect blockage in the air intake pipe. The sensor is electrically connected to the processor. The processor controls the actuator to adjust the opening amount of the air pressure regulating valve based on the detection result of the sensor.

[0007] Preferably, the sensor includes a first sensor for detecting fiber concentration and a second sensor for detecting blockage.

[0008] Preferably, the suction frame with anti-clogging and negative pressure regulation functions further includes a fixing bracket, which is used to fix the first sensor and the second sensor.

[0009] The present invention also provides a method of using the suction frame with anti-clogging and negative pressure regulation functions, the method of use including: Step 1: Turn on the fan, and the control module detects the blockage in the air intake pipe; Step 2: The anti-clogging unit removes the fibers attached to the side wall of the suction pipe; Step 3: The control module increases the opening of the air pressure regulating valve to clean up the fibers that fell off in Step 2; Step 4: Based on the detection results described in Step 1, the control module adjusts the opening amount of the air pressure regulating valve.

[0010] Preferably, the control module controls step 2 to be executed periodically.

[0011] Preferably, steps 2 and 3 are performed simultaneously.

[0012] Preferably, in step 4, when the sensor detects that the blockage in the air intake pipe exceeds a first set value, the control system increases the opening of the air pressure regulating valve.

[0013] Preferably, in step 4, when the sensor detects that the blockage in the air intake pipe exceeds a second set value, the control system reduces the opening of the air pressure regulating valve.

[0014] According to the above technical solution, the fan of the present invention provides negative pressure for the suction frame. Under the action of this negative pressure, the suction port at the front end of the suction pipe can draw in the surrounding air, thereby achieving the collection and removal of floating fibers in the ambient air. The floating fibers are drawn into the suction pipe and flow outward along the channel of the suction pipe. Because the fibers in the garment factory are sticky, some fibers will adhere to the inner wall of the suction pipe, which will eventually cause blockage in the suction pipe.

[0015] By setting an anti-clogging unit, the fibers attached to the side wall of the suction pipe can be removed. In one embodiment, the anti-clogging unit is set as a vibrator. The vibrator drives the side wall of the suction pipe to vibrate, so that the fibers originally attached to the side wall of the suction pipe are detached from the side wall of the suction pipe. The detached fibers will be discharged with the airflow in the suction pipe.

[0016] When the anti-blocking unit is activated, the fiber content in the suction pipe will increase. In order to ensure reliable suction of fibers by the suction pipe, the control module increases the opening of the air pressure regulating valve, which increases the negative pressure in the suction pipe, thereby reliably extracting air and fibers from the suction pipe and avoiding the problem of suction frame blockage.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 It is a sealed plug used to measure the static pressure of gas.

[0019] Figure 2 This is a flowchart illustrating the usage of a suction frame with anti-clogging and negative pressure regulation functions.

[0020] Explanation of reference numerals in the attached figures Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] In this invention, unless otherwise stated, directional terms such as "inner" and "outer" in the terminology represent only the orientation of the term in its normal use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.

[0023] See Figure 1 A suction frame with anti-clogging and negative pressure regulation functions includes a suction pipe 1, a fan connected to the suction pipe 1 via a control module, a wind pressure regulating valve for adjusting the ventilation volume inside the suction pipe 1, and an anti-clogging unit connected to the side wall of the suction pipe 1. The anti-clogging unit is used to remove fibers attached to the side wall of the suction pipe 1. The control module is electrically connected to the air pressure regulating valve, and the negative pressure in the air suction pipe 1 is controlled through the air pressure regulating valve control module.

[0024] Through the implementation of the above technical solution, the fan provides negative pressure to the suction frame. Under this negative pressure, the suction port 4 at the front end of the suction pipe 1 can draw in the surrounding air, thereby collecting and removing floating fibers in the ambient air. The floating fibers are drawn into the suction pipe 1 and flow outward along the channel of the suction pipe 1. Because the fibers in the garment factory are sticky, some fibers will adhere to the inner wall of the suction pipe 1, which will eventually cause blockage in the suction pipe 1.

[0025] By setting an anti-clogging unit, the fibers attached to the side wall of the suction pipe 1 can be removed. In one embodiment, the anti-clogging unit is set as a vibrator. The vibrator drives the side wall of the suction pipe 1 to vibrate, so that the fibers originally attached to the side wall of the suction pipe 1 are detached from the side wall of the suction pipe 1. The detached fibers will be discharged with the airflow in the suction pipe 1.

[0026] When the anti-blocking unit is activated, the fiber content in the suction pipe 1 will increase. In order to ensure that the suction pipe 1 can reliably draw out the fibers, the control module increases the opening of the air pressure regulating valve, which increases the negative pressure in the suction pipe 1, thereby reliably drawing out the air and fibers in the suction pipe 1 and avoiding the problem of the suction frame being blocked.

[0027] In this embodiment, preferably, the anti-clogging unit includes multiple micro-vibrators 2 disposed on the side wall of the air intake pipe 1. The multiple micro-vibrators 2 are electrically connected to the control module, and the control module controls the micro-vibrators 2 to turn on or off. Multiple micro-vibrators 2 are evenly distributed on the side wall of the suction pipe 1. By controlling the vibration of these micro-vibrators 2, the fibers originally attached to the side wall of the suction pipe 1 are detached and then carried away with the airflow, thereby realizing the unblocking operation of the suction pipe 1.

[0028] The control module can turn on the micro-vibrator 2 at a set time. By turning on the micro-vibrator 2 at a set time, the side wall of the suction pipe 1 vibrates, thereby clearing the blockage of the suction pipe 1.

[0029] Moreover, while controlling the micro-vibrator 2 to turn on, the control module also controls the opening of the air pressure regulating valve to increase the negative pressure in the suction pipe 1, thereby increasing the airflow velocity and making it easier for the detached fibers to be carried away by the airflow.

[0030] In one embodiment, the micro-vibrator 2 is a high-frequency micro-vibrator with a frequency of 30-50Hz and an amplitude of 0.5-1mm. These high-frequency micro-vibrators are embedded on the outer side of the pipe wall at the rear end of the air inlet 4. The vibration of the micro-vibrator 2 drives the pipe wall to vibrate, causing the fibers attached to the pipe wall to fall off.

[0031] The micro-vibrator 2 is controlled by the control module to start once every 15 minutes (each lasting 10 seconds), and shakes off the fibers attached to the air intake and guide plate through micro-vibration.

[0032] In this embodiment, preferably, the control module includes a sensor, a processor, and an actuator. The sensor is used to detect blockage in the air intake pipe 1. The sensor is electrically connected to the processor. The processor controls the actuator to adjust the opening amount of the air pressure regulating valve according to the detection result of the sensor.

[0033] The sensor is used to detect the blockage in the suction pipe 1 and feeds the detection result back to the processor. The processor has preset values. The processor compares the detection result with the preset values. If the comparison determines that the blockage has exceeded the preset value, the processor will control the actuator to increase the opening of the air pressure regulating valve so that the negative pressure in the suction pipe 1 is greater and the fibers stuck in the suction pipe 1 can be sucked out in time.

[0034] The processor can not only control the actuator to adjust the opening amount of the air pressure regulating valve, but also determine whether the set time is met, and send an opening signal to the micro vibrator 2 at the set time to control the micro vibrator 2 to open.

[0035] In this embodiment, preferably, the sensor includes a first sensor 51 for detecting fiber concentration and a second sensor 52 for detecting blockage.

[0036] The first sensor 51 is a laser scattering concentration sensor. One first sensor 51 is installed every 30cm along the length of the suction pipe 1 for real-time monitoring of fiber concentration. A mounting hole 5 is pre-set, the size of which is suitable for the first sensor 51. After installation, the first sensor 51 is sealed to the suction pipe 1 to prevent gas or fiber leakage.

[0037] The first sensor 51 measures the fiber concentration inside the suction pipe 1, obtaining a fiber concentration value. The processor compares this value with a preset concentration value. If the value is greater than the predicted value, the processor sends a signal to increase the opening of the air pressure regulating valve, thereby increasing the suction force inside the suction pipe 1 to remove the high-concentration fibers. Since the first sensor 51 monitors the fiber concentration inside the suction pipe 1 in real time, when the fiber concentration decreases, the processor also sends a signal to reduce the opening of the air pressure regulating valve to prevent excessive suction from affecting the operation below the suction port 4.

[0038] The second sensor 52 is configured as a differential pressure blockage sensor to detect the blockage level of the air intake 4. The second sensor 52 determines the blockage status of the air intake 4 by measuring the pressure difference across its two ends. The detection result of the second sensor 52 is input to the processor, which compares this pressure difference value with a predicted pressure difference value. If the pressure difference value is greater than the preset value, the processor considers the air intake 4 to be blocked and sends a signal to increase the opening of the air pressure regulating valve, thereby increasing the suction force at the air intake 4 and clearing the blockage. Since the first sensor 51 monitors the pressure difference at the air intake 4 in real time, when the pressure difference at the air intake 4 recovers, the processor also sends a signal to reduce the opening of the air pressure regulating valve to avoid excessive suction force affecting the operation below the air intake 4.

[0039] In this embodiment, preferably, the suction frame with anti-blocking and negative pressure regulation functions further includes a fixing bracket 6 for fixing the first sensor 51 and the second sensor 52.

[0040] In order to avoid the airflow impact in the suction pipe 1 from affecting the positional stability of the first sensor 51 and the second sensor 52, a fixed bracket 6 is provided to fix the first sensor 51 and the second sensor 52, thereby ensuring the position of the first sensor 51 and the second sensor 52 and making the first sensor 51 and the second sensor 52 have better measurement accuracy.

[0041] In one embodiment, the first sensor 51 includes a laser transmitter and a laser receiver. The transmitter and receiver need to be positioned as close to each other as possible, and their relative positions need to remain stable to ensure the reliability of the measurement results. Therefore, both the transmitter and receiver need to be fixedly connected to a fixing bracket 6, and the fixing bracket 6 needs to have a certain strength to prevent the first sensor 51 from shaking significantly during the detection process.

[0042] The present invention also provides a method of using a suction bracket with anti-clogging and negative pressure regulation functions, the method of use including: Step 1: Turn on the fan and the sensor will detect any blockages in the air intake pipe 1. Step 2: The anti-clogging unit removes fibers adhering to the side wall of the air intake pipe 1; Step 3: The control module increases the opening of the air pressure regulating valve to clean up the fibers that fell off in Step 2; Step 4: Based on the sensor readings from Step 1, adjust the opening amount of the air pressure regulating valve.

[0043] When it is necessary to remove fibers from the air, the fan is first turned on to create negative pressure in the suction pipe 1. Air is then drawn in through the suction port 4 using this negative pressure, and the fibers in the air are extracted, thus achieving the purpose of fiber removal from the environment. After the fan starts working, the sensor detects any blockages in the suction pipe 1 and feeds the detection results back to the control module in real time.

[0044] After the suction frame has been working for a period of time, the anti-clogging unit is activated to remove the fibers attached to the side wall of the suction pipe 1. At the same time, the control module increases the opening of the air pressure regulating valve to clean the fibers that fell off in step 2, thus realizing the routine cleaning of the fibers in the suction pipe 1.

[0045] Based on actual production experience, a correlation can be set between the degree of blockage and the air pressure regulating valve. When the blockage is severe, the opening of the air pressure regulating valve is set to a larger value. Alternatively, if the blockage is not alleviated after increasing the opening of the air pressure regulating valve, the opening of the air pressure regulating valve can be further increased.

[0046] In one embodiment, due to reasons such as fabric production, the amount of fiber sucked in through the air inlet 4 increases, causing the first sensor 51 to detect an increase in the concentration of suspended fibers in the air suction pipe 1. In order to ensure a reliable suction effect, the control module immediately increases the opening of the air pressure regulating valve, thereby increasing the suction force in the air suction pipe 1 and thus achieving a reliable response to the increase in the amount of fiber in the air suction pipe 1.

[0047] In one embodiment, some fibers are tightly attached to the sidewall of the suction pipe 1. Vibration and suction alone cannot remove them in time, leaving residue on the sidewall. Over time, this can cause the transmitter and receiver surfaces of the first sensor 51 to become covered, leading the first sensor 51 to determine that the fiber concentration in the suction pipe 1 is too high. The control module then actively increases the opening of the air pressure regulating valve, increasing the suction force within the suction pipe to clean these attached fibers. Preferably, when the detection result of the first sensor 51 exceeds a set concentration value, the micro-vibrator 2 can also be activated simultaneously to further clean the fibers on the sidewall.

[0048] In one embodiment, the second sensor 52 detects that the pressure difference across the air intake 4 exceeds a preset pressure difference value, thus determining that the air intake 4 is blocked. The control module then increases the opening of the air pressure regulating valve, thereby increasing the suction force within the air intake pipe to clean the attached fibers. Preferably, a micro-vibrator 2 can be installed behind the grille of the air intake 4. During fiber cleaning of the air intake 4, the micro-vibrator 2 assists in vibration, helping the fibers to fall off.

[0049] In this embodiment, preferably, the control module controls step 2 to be executed periodically.

[0050] In this embodiment, preferably, steps 2 and 3 are performed simultaneously.

[0051] In this embodiment, preferably, in step 4, when the sensor detects that the blockage in the air intake pipe 1 exceeds the first set value, the control system increases the opening of the air pressure regulating valve.

[0052] The first setpoint is the preset concentration value of the fiber concentration and the predicted pressure difference value of the air intake. This first setpoint is stored in the processor. The sensor feeds back a signal to the processor, which compares the signal with the first setpoint. If the comparison finds that either value is higher than the predicted value, the actuator will be activated to increase the opening of the air pressure regulating valve so as to achieve reliable extraction of the fiber by increasing the suction force.

[0053] In this embodiment, preferably, in step 4, when the sensor detects that the blockage in the air intake pipe 1 exceeds the second set value, the control system reduces the opening of the air pressure regulating valve.

[0054] To avoid frequent actuator operation, a second set value is also set in the processor. However, after the blockage in the suction pipe 1 is cleared, the fiber concentration value fed back by the sensor will decrease, and the pressure difference value of the suction port 4 will also decrease. When the concentration value and pressure difference value continue to decrease, and when the values ​​fed back by the first sensor 51 and the second sensor 52 are both lower than the corresponding second set value, the actuator will reduce the opening of the air pressure regulating valve in order to reduce the suction force and avoid excessive suction force affecting the work below the suction port 4.

[0055] Preferably, when the differential pressure value fed back by the second sensor 52 fails to decrease, the processor also needs to issue a reminder that the air intake 4 needs to be cleaned.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0058] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A suction frame with anti-clogging and negative pressure regulation functions, characterized in that, The suction frame with anti-clogging and negative pressure regulation functions includes a suction pipe (1), a fan connected to the suction pipe (1) via a control module, a wind pressure regulating valve for regulating the ventilation volume inside the suction pipe (1), and an anti-clogging unit connected to the side wall of the suction pipe (1). The anti-clogging unit is used to remove fibers attached to the side wall of the suction pipe (1). The control module is electrically connected to the air pressure regulating valve, and the control module controls the negative pressure in the air suction pipe (1) through the air pressure regulating valve.

2. The suction frame with anti-clogging and negative pressure regulation functions according to claim 1, characterized in that, The anti-blocking unit includes multiple micro-vibrators (2) disposed on the side wall of the air intake pipe (1). The multiple micro-vibrators (2) are electrically connected to the control module, and the control module controls the micro-vibrators (2) to open or close.

3. The suction frame with anti-clogging and negative pressure regulation functions according to claim 1, characterized in that, The control module includes a sensor, a processor, and an actuator. The sensor is used to detect blockage in the air intake pipe (1). The sensor is electrically connected to the processor. The processor controls the actuator to adjust the opening amount of the air pressure regulating valve according to the detection result of the sensor.

4. The suction frame with anti-clogging and negative pressure regulation functions according to claim 2, characterized in that, The sensor includes a first sensor (51) for detecting fiber concentration and a second sensor (52) for detecting blockage.

5. The suction frame with anti-clogging and negative pressure regulation functions according to claim 4, characterized in that, The suction frame with anti-clogging and negative pressure regulation functions also includes a fixed bracket (6), which is used to fix the first sensor (51) and the second sensor (52).

6. A method of using a suction frame with anti-clogging and negative pressure adjustment functions as described in any one of claims 1-5, characterized in that, The method of use includes: Step 1: Turn on the fan and the control module detects the blockage in the suction pipe (1); Step 2: The anti-clogging unit removes the fibers attached to the side wall of the suction pipe (1); Step 3: The control module increases the opening of the air pressure regulating valve to clean up the fibers that fell off in Step 2; Step 4: Based on the detection results described in Step 1, the control module adjusts the opening amount of the air pressure regulating valve.

7. The method of use according to claim 6, characterized in that, The control module controls step 2 to be executed periodically.

8. The method of use according to claim 7, characterized in that, Steps 2 and 3 are executed simultaneously.

9. The method of use according to claim 6, characterized in that, In step 4, when the sensor detects that the blockage in the air intake pipe (1) exceeds the first set value, the control system increases the opening of the air pressure regulating valve.

10. The method of use according to claim 6, characterized in that, In step 4, when the sensor detects that the blockage in the air intake pipe (1) exceeds the second set value, the control system reduces the opening of the air pressure regulating valve.

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