Centralized vacuum device

Abstract

The utility model discloses a centralized vacuum device, and belongs to the technical field of vacuum equipment. The device comprises a filtering tank body, a first air inlet and a first air outlet are formed in the outer side of the filtering tank body, and a filtering layer is arranged in the filtering tank body; the first air outlet is connected with the air inlet end of the vacuum main machine through a pipeline, and the cleaning assembly comprises a vibration device, a support and a suction device; the vibrating device is arranged outside the filtering tank body; the output end of the vibrating device is connected with the end part of the bracket; the support is arranged in the filtering tank body; the filtering layer is arranged on the side surface of the support; the suction device is arranged on the outer side of the filtering tank body, and the suction end penetrates through the filtering tank body and is located below the filtering layer. When the vibration device operates, vibration is conducted to the filter layer through the support, fine particles adsorbed on the filter layer fall off, then the falling fine particles are adsorbed through the suction device, and therefore the filter layer can be recycled, the filter efficiency is guaranteed, and the replacement frequency can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum equipment, and in particular relates to a centralized vacuum device. Background Art

[0002] Pipe extrusion production requires the use of an extruder, which requires a vacuum environment during the extrusion process such as pipe sizing. The vacuum device used in the existing production process will filter the incoming gas. For example, Chinese patent document CN204604865U discloses a centralized vacuum box for an extruder, which includes a machine vacuum outlet, the machine vacuum outlet is connected to a filter, the filter outlet is connected to a vacuum tank A and a vacuum tank B, vacuum tanks A and B are both provided with vacuum gauges on the top, sight glass ports are provided in the middle of vacuum tanks A and B, pneumatic valves are provided on the bottom of vacuum tanks A and B, the outlets of vacuum tanks A and B are respectively connected to vacuum pumps A and B, vacuum pumps A and B are both connected to a water tank, a water replenishment port is provided on the top of the water tank, the water tank is provided with a drain port A and a drain port B, and the drain port B is connected to vacuum pumps A and B. The utility model is simple in design, and the centralized vacuum box is connected to the exhaust port on the pipe extruder. The original vacuum box of the extruder has low pressure and unclean vacuum, which leads to bubbles and deformation of the produced pipes. The above problems can be avoided by adding a centralized vacuum box.

[0003] However, after long-term use, the above-mentioned filter still has the problem of increased adsorption of fine particles, resulting in reduced filtering effect. Utility Model Content

[0004] The utility model provides a centralized vacuum device to solve the technical problem that after long-term use, the filtering tank of the existing vacuum device has a reduced filtering effect due to the increased accumulation of adsorbed fine particles.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A centralized vacuum device comprises a filter tank body, wherein the outer side of the filter tank body is provided with a first air inlet and a first air outlet, and a filter layer is provided inside; the first air outlet is connected to the air inlet end of a vacuum main engine via a pipeline, and further comprises: a cleaning component, comprising a vibration device, a bracket, and a suction device; the vibration device is arranged on the outer side of the filter tank body, and the output end of the vibration device is connected to the end of the bracket; the bracket is arranged in the filter tank body, and the filter layer is arranged on the side of the bracket; the suction device is arranged on the outer side of the filter tank body, and the suction end passes through the filter tank body and is located below the filter layer.

[0007] Furthermore, an elastic block is provided at one end of the bracket not connected to the vibration device, and the elastic block is provided on the inner side of the filter tank.

[0008] Furthermore, a sealing layer is provided between the filter layer and the inner side of the filter tank.

[0009] Furthermore, the sealing layer is provided with folds along the length direction of the stent, so that the maximum length of the sealing layer when unfolded is greater than the length of the stent.

[0010] Furthermore, the vacuum device also includes a buffer tank body arranged outside the filter tank body, and the outside of the buffer tank body is provided with a second air inlet and a second air outlet; the second air outlet is connected to the first air inlet through a pipeline.

[0011] Furthermore, the buffer tank body is provided with a plurality of the second air inlets, and the height positions of the second air inlets are lower than the height positions of the second air outlets.

[0012] Furthermore, the vacuum device also includes a controller disposed on the side of the vacuum main unit, and the controller is electrically connected to the vacuum main unit, the vibration device, and the suction device. Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. When the vibration device is in operation, the vibration is transmitted to the filter layer through the bracket, so that the fine particles adsorbed on the filter layer fall off, and then the fine particles that fall off are adsorbed and processed by the suction device. In this way, the filter layer can be recycled, which not only ensures the filtration efficiency but also reduces the replacement frequency of the filter layer.

[0014] 2. The sealing layer can ensure that when the vibration device is running, even if the filter layer vibrates accordingly, no gap will be generated between it and the filter tank body, thereby preventing unfiltered gas from entering the vacuum main unit, ensuring sufficient filtration and safe operation of the device; the elastic block can improve the vibration effect.

[0015] 3. The buffer tank is set so that the air enters the buffer tank first and then enters the filter tank, so that the gas is buffered in the buffer tank, improving the stability of the device operation; multiple second air inlets are set to facilitate connection with different production lines, which can meet the vacuum requirements of different production lines.

[0016] 4. Multiple second air inlets are set on the buffer tank body, which can be connected to extruders of different production lines to meet the vacuum requirements of production and avoid the need for multiple vacuum devices to vacuum the extruders separately. It is not only efficient and energy-saving, but also occupies a small area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 Schematic diagram of the filter tank structure.

[0020] Figure 3 for Figure 2 A local enlarged schematic diagram of point A.

[0021] Figure 4 It is a schematic diagram of the structure of the filter layer and the sealing layer.

[0022] Figure markings: 1-filter tank body, 11-first air inlet, 12-first air outlet, 13-filter layer, 14-sealing layer, 2-vacuum main unit, 3-cleaning component, 31-vibration device, 32-bracket, 33-suction device, 34-elastic block, 4-buffer tank body, 41-second air inlet, 42-second air outlet. DETAILED DESCRIPTION

[0023] In order to facilitate a better understanding of the present invention, the following examples are used to illustrate the present invention in conjunction with the accompanying drawings. These examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.

[0024] Example 1

[0025] A centralized vacuum device, such as Figure 1-Figure 3 As shown, it includes a filter tank body 1, the outer side of the filter tank body 1 is provided with a first air inlet 11 and a first air outlet 12, and a filter layer 13 is provided inside; the first air outlet 12 is connected to the air inlet end of the vacuum main unit 2 through a pipeline, and also includes: a cleaning component 3, including a vibration device 31, a bracket 32, and a suction device 33; the vibration device 31 is arranged on the outer side of the filter tank body 1, and the output end of the vibration device 31 is connected to the end of the bracket 32; the bracket 32 ​​is arranged in the filter tank body 1, and the filter layer 13 is arranged on the side of the bracket 32; the suction device 33 is arranged on the outer side of the filter tank body 1, and the suction end passes through the filter tank body 1 and is located below the filter layer 13. The filter layer can be filtered by membrane, particle filtration, or a combination of membrane and particle filtration, and membrane filtration and particle filtration are both existing filtering methods; the pipeline installation and connection method between the filter tank body and the vacuum main unit adopts the existing technology, and the installation and fixing method of the vacuum main unit adopts the existing technology.

[0026] Valves can be set on the first air inlet and the first air outlet to facilitate control according to needs. The exhaust port of the pipe extruder is connected to the first air inlet through a pipeline. When the vacuum main engine is running, air enters the filter tank through the pipeline. Since the air may carry fine particles such as dust, a filter layer is set to filter fine particles; after the vacuum device has been running for a period of time, when the impurities adsorbed by the filter are large, the filtering effect will be affected.

[0027] When it is necessary to remove fine particles on the filter layer, first close the valves on the first air inlet and the first air outlet, turn off the vacuum main unit, start the vibration device, and make the bracket vibrate. Since the filter layer is provided on the side of the bracket, the filter layer is vibrated to cause fine particles to fall off. At this time, start the suction device to adsorb the fallen fine particles. After the removal is completed, turn off the vibration device and the suction device; the filter layer can be used again, ensuring the filtration efficiency and reducing the replacement frequency.

[0028] Example 2

[0029] like Figure 1-Figure 3 As shown, an elastic block 34 is provided at one end of the bracket 32 ​​that is not connected to the vibration device 31 , and the elastic block 34 is provided on the inner side of the filter tank body 1 .

[0030] like Figure 1-Figure 4 As shown, a sealing layer 14 is provided between the filter layer 13 and the inner side of the filter tank body 1. Figure 1-Figure 4 As shown, the sealing layer 14 is provided with folds along the length direction of the bracket 32 ​​so that the maximum length of the sealing layer 14 when unfolded is greater than the length of the bracket 32 ​​.

[0031] When the vibration device is running, the elastic block can improve the vibration effect of the bracket, so that the fine particles adsorbed by the filter layer can be fully dropped off, and then the suction device can perform suction; the elastic block can be made of elastic material, such as elastic rubber.

[0032] The sealing layer is mainly set to prevent the filter layer from vibrating and displacing due to the operation of the vibration device, which may cause a gap between the filter layer and the filter tank body, and then when the device is running, some gas may pass through the gap and affect the filtering effect; the sealing layer is provided with folds, which can make the sealing layer vibrate together with the filter layer without pulling the sealing layer to cause damage, thereby affecting the sealing effect.

[0033] The cleaning component can also be provided with a baffle, the top of which is hingedly arranged in the suction end of the suction device. During the operation of the vacuum device, gas enters the filter tank through the first air inlet. In order to prevent the gas from entering the suction end of the suction device, a baffle is provided; the top of the baffle is hingedly connected to the inner wall of the suction end of the suction device. Due to the effect of gravity, the baffle is vertically downward, thereby shielding the suction end and preventing gas from entering; when the suction device is running, when the suction force is greater than the gravity of the baffle, the baffle rotates upward, so that the sucked fine particles can be sucked out and processed along with the gas.

[0034] Example 3

[0035] like Figure 1 As shown, the vacuum device also includes a buffer tank body 4 arranged outside the filter tank body 1, and a second air inlet 41 and a second air outlet 42 are respectively arranged outside the buffer tank body 4; the second air outlet 42 is connected to the first air inlet 11 through a pipeline.

[0036] like Figure 1 As shown, the buffer tank body 4 is provided with a plurality of second air inlets 41 , and the height positions of the second air inlets 41 are lower than the height positions of the second air outlets 42 .

[0037] The buffer tank body is arranged on the outside of the filter tank body and at the front end of the filter tank body. It is connected to the pipeline of the first air inlet through the second air outlet, so that the air enters the buffer tank body first and then enters the filter tank body. In this way, a buffer space can be obtained before the gas enters the filter tank body, thereby preventing the gas from entering the filter tank body too quickly.

[0038] Vacuuming is required during pipe extrusion production. When multiple production lines need to use vacuum, multiple second air inlets are set up to facilitate connection with different production lines to meet usage needs; valves can be set on the second air inlet and the second air outlet to facilitate control according to actual conditions. Figure 1 As shown, the vacuum device also includes a controller 5 arranged on the side of the vacuum main unit 2, and the controller 5 is electrically connected to the vacuum main unit 2, the vibration device 31, and the suction device 33. The controller is electrically connected to the vacuum main unit, the vibration device, and the suction device, so that the start and stop of the above-mentioned electrical components can be controlled by the controller, thereby improving the convenience of operation and use; a cabinet can be arranged outside the controller for protection.

[0039] The vacuum main unit, filter tank body and buffer tank body can be arranged on the bracket as required to play a stabilizing role. The bracket is an existing product and can be selected according to actual needs.

[0040] The valve used in the utility model can be selected from existing products according to actual needs. It is not an innovation created by the present invention. The specific model used is not described here, and the existing technology is used for installation and use.

[0041] The vacuum main unit, vibration device, suction device, controller, etc. involved in the utility model are not innovative points created by the present invention. The specific models used are not described here, and the installation and fixing methods involved are all existing technologies.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the statement "including an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centralized vacuum device, comprising a filter tank (1), wherein the filter tank (1) is provided with a first air inlet (11) and a first air outlet (12) on the outside, and a filter layer (13) is provided inside; the first air outlet (12) is connected to the air inlet end of a vacuum main unit (2) via a pipeline, and is characterized in that: Also includes: A cleaning assembly (3) comprising a vibrating device (31), a support (32), and a suction device (33); The vibration device (31) is arranged on the outside of the filter tank body (1), and the output end of the vibration device (31) is connected to the end of the bracket (32); the bracket (32) is arranged in the filter tank body (1), and the filter layer (13) is arranged on the side of the bracket (32); the suction device (33) is arranged on the outside of the filter tank body (1), and the suction end passes through the filter tank body (1) and is located below the filter layer (13).

2. A centralized vacuum device according to claim 1, characterized in that: An elastic block (34) is provided at one end of the bracket (32) not connected to the vibration device (31), and the elastic block (34) is arranged on the inner side of the filter tank body (1).

3. A centralized vacuum device according to claim 2, characterized in that: A sealing layer (14) is provided between the filter layer (13) and the inner side of the filter tank body (1).

4. A centralized vacuum device according to claim 3, characterized in that: The sealing layer (14) is provided with folds along the length direction of the bracket (32), so that the maximum length of the sealing layer (14) when unfolded is greater than the length of the bracket (32).

5. A centralized vacuum device according to any one of claims 1 to 4, characterized in that: It also comprises a buffer tank body (4) arranged outside the filtering tank body (1), and the buffer tank body (4) is provided with a second air inlet (41) and a second air outlet (42) on the outside; the second air outlet (42) is connected to the first air inlet (11) via a pipeline.

6. A centralized vacuum device according to claim 5, characterized in that: The buffer tank body (4) is provided with a plurality of the second air inlets (41), and the height positions of the second air inlets (41) are lower than the height positions of the second air outlets (42).

7. A centralized vacuum device according to claim 6, characterized in that: It also includes a controller (5) arranged on the side of the vacuum main unit (2), and the controller (5) is electrically connected to the vacuum main unit (2), the vibration device (31), and the suction device (33) respectively.

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