Pneumatic system air flow regulating damper

Abstract

The utility model discloses a pneumatic system airflow regulation buffer device, including the air extraction pipe of communication in garbage separator upper layer, the garbage conveying pipe of communication in garbage separator lower layer, the shunt bypass of communication between air extraction pipe and garbage conveying pipe, the backflush intake branch of communication in garbage separator upper layer and the shunt intake branch of communication on shunt bypass, garbage conveying pipe is equipped with control valve, air extraction pipe is equipped with backflush valve, backflush intake branch is equipped with backflush intake valve, shunt bypass is equipped with shunt port filter box and shunt valve. The shunt port filter box and shunt valve in shunt bypass can adjust airflow, avoid system pressure, reduce gas flow rate, reduce the speed of high -speed moving garbage. This design can not only effectively reduce the speed of garbage into separator, reduce the impact and wear noise of garbage to separator, but also can solve the problem of traditional cleaning mode, prevent system pressure stop.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling technology, and in particular to a pneumatic system airflow regulation and buffer device. Background Technology

[0002] Waste separators are typically used in building exhaust-pipe waste recycling systems. They consist of a large filter layer with an exhaust mechanism above it, creating negative pressure inside the separator. The space below the filter layer connects to a conveyor pipe and the recycling mechanism, allowing waste thrown into the recycling mechanism to be drawn into the lower layer of the separator through this pipe. During operation, the waste moves at high speed due to the airflow within the pipe, eventually impacting the lower layer of the separator. Over time, this can damage the separator, and the impact noise during operation is also significant.

[0003] In addition, the large filter screen serves to filter waste and prevent it from entering the suction mechanism. However, waste, carried by the airflow, easily adheres to or gets stuck under or inside the large filter screen, necessitating cleaning. In traditional waste separator systems, cleaning the large filter screen typically requires removing it from the equipment, interrupting waste collection and impacting overall efficiency. Furthermore, as the volume of waste inside the separator increases or airflow becomes obstructed, the suction fan is prone to pressure buildup, increasing energy consumption and potentially damaging the equipment. Therefore, it is necessary to provide a pneumatic system airflow regulation and buffer device to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic system airflow regulation and buffer device, which aims to improve the problem of large impact force of garbage in garbage separators and the easy occurrence of pressure buildup in the air pump.

[0005] To achieve the above objectives, this utility model provides a pneumatic system airflow regulation and buffer device, comprising: an air extraction pipe connected to the upper layer of a waste separator, a waste conveying pipe connected to the lower layer of the waste separator, and a diversion bypass connected between the air extraction pipe and the waste conveying pipe; The waste conveying pipe is equipped with a control valve; the air extraction pipe is equipped with a backwash valve; and the diversion bypass is equipped with a diversion port filter box and a diversion valve.

[0006] In a preferred embodiment, the diversion port filter box includes a box body and a diversion port filter screen disposed within the box body.

[0007] In a preferred embodiment, it further includes: a backwash air intake branch connected to the upper layer of the waste separator, and a diversion air intake branch connected to the diversion bypass; the backwash air intake branch is provided with a backwash air intake valve; the diversion air intake branch is provided with a diversion air intake valve; the position where the diversion air intake branch connects to the diversion bypass is located between the diversion port filter box and the diversion valve.

[0008] In a preferred embodiment, the backwash air intake branch is reused for the air intake port opened on the top of the waste separator, and the backwash air intake valve is provided on the corresponding air intake port.

[0009] In a preferred embodiment, there are multiple air inlets, which are spaced apart from each other.

[0010] The pneumatic system airflow regulation and buffer device provided by this utility model, by setting up a diversion bypass, a backwash air inlet branch, and a diversion air inlet branch, can reduce the airflow velocity entering the lower layer of the waste separator through the waste conveying pipe, thereby reducing the impact velocity of the waste entering the waste separator through the airflow and achieving airflow buffering. This reduces operating noise and prevents damage to the inner wall of the waste separator from long-term operation. At the same time, the diversion port filter box and diversion valve in the diversion bypass can regulate the airflow and prevent system pressure buildup. In addition, in a preferred embodiment, by combining with corresponding valve control, backwashing of the large filter screen can also be achieved without stopping the machine. Specifically, when it is necessary to wash the large filter screen, the diversion air inlet valve and control valve are closed, and the backwash air inlet valve is opened, so that the airflow flows in reverse in the diversion bypass. The airflow enters from the upper layer and passes through the large filter screen, washing the waste adhering to the bottom of the large filter screen down to the lower layer of the waste separator. This design not only effectively reduces the speed at which waste enters the separator, thus reducing the impact and wear noise of the waste on the separator, but also solves the problem of traditional cleaning methods requiring shutdown and manual cleaning of the filter screen, preventing system pressure buildup and shutdown, and improving the continuous operation efficiency and reliability of the waste separator. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A perspective view of the pneumatic system airflow regulation and buffer device combined with a waste separator provided by this utility model; Figure 2 for Figure 1The diagram shows a pneumatic system airflow regulation and buffer device combined with a waste separator. Figure 3 for Figure 2 The diagram shows the airflow direction of the pneumatic system airflow regulation and buffer device during the waste collection and transportation process. Figure 4 for Figure 2 The diagram shows the airflow direction of the pneumatic system airflow regulation and buffer device during the backwashing process of the large filter screen of the waste separator. Figure 5 for Figure 2 The diagram shows the airflow direction of the pneumatic system's airflow regulation and buffer device during the backwashing process of the diversion port filter.

[0013] The following are labels in the diagram: 100, pneumatic system airflow regulation and buffer device; 200, garbage separator; 201, large filter screen; 11, exhaust pipe; 111, backwash valve; 12, garbage conveying pipe; 121, control valve; 131, diversion port filter box; 132, diversion valve; 13, diversion bypass; 14, backwash air inlet branch; 141, backwash air inlet valve; 15, diversion air inlet branch; 151, diversion air inlet valve. Detailed Implementation

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0015] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0016] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0017] In an embodiment of this utility model, a pneumatic system airflow regulating and buffering device 100 is provided. This device can create negative pressure within a predetermined pipeline by pumping air, thereby periodically or irregularly drawing garbage discarded by users into a garbage separator 200 via a conveying pipeline, thus achieving centralized automatic collection from multiple garbage bins. It should be noted that, as... Figure 2As shown, the garbage separator 200 is divided into upper and lower spaces by a large filter 201. The garbage is sucked into the lower space, and the large filter 201 acts as a barrier to prevent the garbage from entering the air extraction pipeline system.

[0018] like Figure 1 and Figure 2 As shown, the pneumatic system airflow regulation and buffer device 100 includes an exhaust pipe 11 connected to the upper layer of the garbage separator 200, a garbage conveying pipe 12 connected to the lower layer of the garbage separator 200, a bypass 13 connected between the exhaust pipe 11 and the garbage conveying pipe 12, a backwash air intake branch 14 connected to the upper layer of the garbage separator 200, and a bypass air intake branch 15 connected to the bypass 13.

[0019] Therefore, one end of the exhaust pipe 11 is connected to an exhaust fan (not shown in the figure). One end of the waste conveying pipe 12 is connected to at least one waste recycling device with a certain airtightness. Users can directly put the waste into the waste recycling device. When the exhaust fan draws air intermittently or periodically, a negative pressure is formed in the exhaust pipe 11, thereby generating an inward airflow. Most of this airflow acts inside the waste separator 200 and the waste conveying pipe 12, thereby sucking the waste in the waste recycling bin connected to one end of the waste conveying pipe 12 to the lower layer of the waste separator 200. A small portion of this airflow passes sequentially through the front end of the waste conveying pipe 12, the diversion bypass 13, and the end of the exhaust pipe 11, thereby forming a diversion. It should be noted that when the exhaust fan operates at its rated power, the suction force it generates may exceed the power required for the waste separator 200 to draw waste from the waste conveying pipe 12. In this case, the exhaust fan is in a "pressure-stagnant" operating state, resulting in a larger airflow impact on the waste separator 200, increased noise, and reduced waste separation efficiency, which also negatively affects the lifespan of the exhaust fan. In this situation, pressure is reduced through the diversion bypass 13, thus decreasing the impact on the waste separator 200. Specifically, by setting up a diversion bypass 13, the airflow velocity entering the lower layer of the waste separator through the waste conveying pipe can be reduced, thereby reducing the impact velocity of the waste entering the waste separator through the airflow, achieving airflow buffering, reducing operating noise, and preventing long-term damage to the inner wall of the waste separator.

[0020] To prevent waste from directly entering the exhaust pipe 11 from the waste conveying pipe 12, the diversion bypass 13 is equipped with a diversion port filter box 131. The diversion port filter box 131 includes a box body and a diversion port filter screen (not shown in the figure) disposed inside the box body.

[0021] To achieve individual control of each pipeline, and to separately achieve backwashing of the large filter 201 of the waste separator 200 and the backwashing of the filter screen in the diversion port filter box 131, the diversion bypass 13 is equipped with a diversion valve 132, and the waste conveying pipe 12 is equipped with a control valve 121. Figure 1 (The diagram shown is for illustrative purposes only and does not represent the actual structure.) The extraction pipe 11 is equipped with a backwash valve 111, and the backwash air intake branch 14 is equipped with a backwash air intake valve 141. The diversion air intake branch 15 is equipped with a diversion air intake valve 151.

[0022] In one embodiment, the location where the split intake branch 15 connects to the split bypass 13 is between the split port filter box 131 and the split valve 132.

[0023] In one embodiment, the backwash air intake branch 14 is reused for the air intake located at the top of the waste separator 200. The backwash air intake valve 141 is provided on the corresponding air intake. Furthermore, there are multiple air intakes, which are spaced apart from each other, so that when backwashing the large filter 201 of the waste separator 200 from top to bottom, dead zones during backwashing can be minimized.

[0024] like Figure 3 As shown, this is the normal waste collection and transportation process: backwash air inlet valve 141 and diversion air inlet valve 151 are closed, while backwash valve 111, diversion valve 132, and control valve 121 are open.

[0025] At this time, the exhaust pipe 11 draws air through the external exhaust fan, driving the garbage through the garbage conveying pipe 12 into the lower layer of the garbage separator 200. The airflow filtered by the large filter 201 passes through the upper layer of the garbage separator 200 and the exhaust pipe 11 in sequence and is discharged. Part of the airflow in the garbage conveying pipe 12 enters the exhaust pipe 11 through the diversion bypass 13 and is then discharged. At this time, the diversion port filter box 131 will prevent the garbage in the garbage conveying pipe 12 from entering the diversion bypass 13.

[0026] like Figure 4 As shown, the backwashing (cleaning) process of the large filter 201 of the garbage separator 200 is as follows: control valve 121, backwash valve 111, and diversion air inlet valve 151 are closed, and backwash air inlet valve 141 and diversion valve 132 are open.

[0027] At this time, the exhaust pipe 11 draws air through an external exhaust fan, driving outside air into the waste separator 200 through the backwash intake branch 14 (e.g., the air inlet at the top of the waste separator 200). This causes the airflow to impact the large filter 201 from top to bottom, blowing the waste attached to the large filter 201 into the lower layer of the waste separator 200. The airflow entering the lower layer of the waste separator 200 passes through the waste conveying pipe 12 and the diversion bypass 13 before entering the exhaust pipe 11. Due to the presence of the diversion port filter screen in the diversion port filter box 131, the waste in the lower layer of the waste separator 200 and the waste conveying pipe 12 will not enter the diversion bypass 13.

[0028] like Figure 5 The diagram shows the backwashing (cleaning) process for the diversion port filter: the backwash inlet valve 141, diversion valve 132, and control valve 121 are closed, while the backwash valve 111 and diversion inlet valve 151 are open.

[0029] At this time, the exhaust pipe 11 draws air through an external exhaust fan, driving the external airflow to sequentially pass through the diversion inlet valve 151, the diversion port filter box 131, the waste conveying pipe 12, the lower layer of the waste separator 200, and the upper layer of the waste separator 200 before entering the exhaust pipe 11. In this process, the airflow direction received by the diversion port filter screen of the diversion port filter box 131 is opposite to the airflow direction received during the waste collection and transportation process. This allows the waste attached to the diversion port filter screen of the diversion port filter box 131 to be blown into the waste conveying pipe 12, ultimately achieving backwashing and cleaning of the diversion port filter screen.

[0030] It should be noted that, Figures 3-5 In Chinese, a valve marking with a diagonal line indicates that the valve is in the closed state; if there is no diagonal line, it indicates that the valve is in the open state.

[0031] In summary, the pneumatic system airflow regulation and buffer device 100 provided by this utility model, by setting up a diversion bypass 13, a backwash inlet branch 14, and a diversion inlet branch 15, can reduce the airflow velocity entering the lower layer of the waste separator through the waste conveying pipe, thereby reducing the impact velocity of the waste entering the waste separator through the airflow and achieving airflow buffering. This reduces operating noise and avoids damage to the inner wall of the waste separator caused by long-term operation. In addition, by combining with corresponding valve control, backwashing of the large filter screen 201 can be achieved without stopping the machine. Specifically, when it is necessary to wash the large filter screen 201, the diversion inlet valve 151 and the control valve 121 are closed, and the backwash inlet valve 141 is opened, so that the airflow flows in the opposite direction in the diversion bypass 13. The airflow enters from the upper layer and passes through the large filter screen 201, flushing the waste adhering to the bottom of the large filter screen 201 to the lower layer of the waste separator 200; at the same time, the diversion port filter box 131 and the diversion valve 132 in the diversion bypass 13 can regulate the airflow and prevent system pressure buildup. This design not only effectively reduces the speed at which garbage enters the separator, reducing the impact and wear noise of garbage on the separator, but also solves the problem of traditional cleaning methods requiring shutdown to disassemble the filter screen for manual cleaning, preventing system pressure buildup and shutdown, and improving the continuous operation efficiency and reliability of the garbage separator 200.

[0032] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A pneumatic system airflow regulating cushioning device, characterized by, include: An exhaust pipe connected to the upper layer of the waste separator, a waste conveying pipe connected to the lower layer of the waste separator, and a bypass connecting the exhaust pipe and the waste conveying pipe; The waste conveying pipe is equipped with a control valve; the air extraction pipe is equipped with a backwash valve; and the diversion bypass is equipped with a diversion port filter box and a diversion valve.

2. The pneumatic system airflow regulating buffer of claim 1, wherein, The diversion port filter box includes a box body and a diversion port filter screen disposed inside the box body.

3. The pneumatic system airflow regulating buffer of claim 1, wherein, Also includes: The backwash air intake branch is connected to the upper layer of the waste separator, and the diversion air intake branch is connected to the diversion bypass; the backwash air intake branch is equipped with a backwash air intake valve; the diversion air intake branch is equipped with a diversion air intake valve; the position where the diversion air intake branch connects to the diversion bypass is located between the diversion port filter box and the diversion valve.

4. The pneumatic system airflow regulating buffer of claim 3, wherein, The backwash air intake branch is reused for the air intake port opened on the top of the waste separator, and the backwash air intake valve is located on the corresponding air intake port.

5. The pneumatic system airflow regulating buffer of claim 4, wherein, There are multiple air inlets, which are spaced apart from each other.

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