Negative pressure adsorption system

Abstract

The utility model belongs to the technical field of negative pressure adsorption, and particularly relates to a negative pressure adsorption system which comprises a main machine shell, a negative pressure adsorption device, a negative pressure adsorption device and a negative pressure adsorption device. The filtering structures are arranged on the outer side of the main machine, and the number of the filtering structures is multiple; the connecting pipe is arranged between the vacuum pump and the filtering structure and is used for conveying filtered air; the conveying pipe is arranged between the filtering structure and the process equipment needing to be vacuumized, a plurality of flow dividing pipes are arranged on the conveying pipe, and valves are arranged between the flow dividing pipes and the conveying pipe; wherein the plurality of filtering structures are connected end to end through communicating pipes. And the effects of filtering the extracted air and prolonging the service life of the equipment are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of negative pressure adsorption, and in particular relates to a negative pressure adsorption system. Background Art

[0002] As a daily necessity, the production process and equipment of paper towels have always attracted wide attention. In the production process of paper towels, in order to improve production efficiency and product quality, various automated and intelligent production equipment and technologies are usually required. Among them, negative pressure adsorption system, as an important technical means, has been widely used in paper towel production.

[0003] The existing negative pressure adsorption system directly connects the vacuum pump to the process equipment that needs to be vacuumed through a pipeline. Since the air drawn back from the process equipment to be vacuumed may contain solid or liquid particles, these particles will enter the vacuum pump during vacuuming, causing damage to the vacuum pump. Utility Model Content

[0004] The purpose of the utility model is to provide a negative pressure adsorption system in view of the above-mentioned technical problems, so as to achieve the effect of filtering the extracted air and extending the service life of the equipment.

[0005] In view of this, the utility model provides a negative pressure adsorption system, characterized in that it includes:

[0006] A mainframe housing, wherein a vacuum pump is installed in the mainframe housing for extracting a vacuum;

[0007] A filtering structure, wherein the filtering structure is arranged outside the host and is provided with multiple groups;

[0008] A connecting pipe, which is arranged between the vacuum pump and the filtering structure and is used to transport the filtered air;

[0009] A delivery pipe, the delivery pipe is arranged between the filtering structure and the process equipment that needs to extract vacuum, and a plurality of shunt pipes are arranged on the delivery pipe, and a valve is arranged between the shunt pipe and the delivery pipe;

[0010] Wherein, the multiple filtering structures are connected head to tail through a connecting pipe.

[0011] In the present technical solution, before the air enters the vacuum pump, it is purified by a filtering structure arranged on the outside of the main body housing to process solid or liquid particles in the air, thereby preventing solid or liquid particles from entering the vacuum pump and causing the vacuum pump to lock, increase the loss of mechanical efficiency, ensure the normal use of the vacuum pump, and help extend the service life of the device.

[0012] In the above technical solution, further, the filtering structure includes:

[0013] The filter tank is hollow and has an air inlet pipe and an air outlet pipe at both ends.

[0014] A moisture filter cartridge, which is arranged in the filter tank and matched with the air inlet pipe, and has air holes on its surface;

[0015] A sealing ring, which is arranged between the moisture filter cartridge and the inner wall of the filter tank and is arranged close to the air inlet pipe so that a cavity is formed between the filter tank and the moisture filter cartridge;

[0016] A fixing ring, the fixing ring is arranged below the moisture filter cartridge, and a threaded tube is fixedly arranged at the center of the fixing ring away from the moisture filter cartridge;

[0017] The filter core is arranged below the fixing ring and connected with the threaded pipe.

[0018] In this technical solution, air enters the moisture filter cartridge, and the moisture filter cartridge can dehumidify the air. The treated air cavity flows to the filter element, and the filter element can filter solid particles in the air. The multiple sets of filter structures can further improve the cleanliness of the air, which is conducive to extending the service life of the equipment. The moisture filter cartridge is made of calcium chloride.

[0019] In the above technical solution, further, sealing sleeves are symmetrically arranged between the outer wall of the filter element and the filter tank, and dust filter cloths are arranged between the sealing sleeves.

[0020] In the technical solution, the cooperation between the provided sealing sleeve and the dust filter cloth can filter the air filtered by the filter element again, thereby further improving the cleanliness of the air.

[0021] In the above technical solution, further, an air inlet pipe is arranged below the main engine housing, an air outlet is arranged on the side wall, and an air avoidance groove is arranged below the vacuum pump in the main engine housing, and a cooling structure is arranged in the air avoidance groove.

[0022] In the above technical solution, further, the cooling structure includes:

[0023] An air inlet channel, the air inlet channel is transversely arranged below the air avoidance slot, and the air inlet channel is connected to the air inlet pipe;

[0024] A cooler, wherein the cooler is arranged in the air avoidance groove, and a connecting groove is arranged through the bottom of the cooler;

[0025] A filter plate, which is embedded in the outer wall of the main body shell and cooperates with the air inlet channel;

[0026] A circulation pipe, wherein the circulation pipe is annularly sleeved on the air inlet pipe and is connected to the cooler;

[0027] Wherein, cooling liquid flows in the cooler and the circulation pipe.

[0028] In this technical solution, after the air enters the main body housing through the air inlet channel, it passes through the filter plate, which is beneficial to reduce dust in the air and increase the service life of the vacuum pump. When the filtered air enters the main body housing through the air inlet pipe, the temperature of the air inlet pipe can be reduced through the cooperation between the cooler, the circulation pipe, and the coolant, thereby reducing the temperature of the blown air, which is beneficial to improve the heat dissipation efficiency of the vacuum pump and extend the service life of the vacuum pump. Among them, a semiconductor cooling sheet is provided in the cooler to improve the cooling effect.

[0029] In the above technical solution, further, fans are provided in both the air inlet pipe and the air outlet.

[0030] In the present technical solution, the fan can speed up the flow of air in the main engine housing, thereby reducing the temperature in the main engine housing, avoiding overheating of the vacuum pump, and helping to extend the service life of the equipment.

[0031] In the above technical solution, further, the vacuum pump is a magnetic levitation fan.

[0032] In this technical solution, by adopting a magnetic levitation fan as a power source, it is possible to extract positions and multiple vacuum degrees at the same time, greatly reducing mechanical efficiency losses, which is beneficial to reducing production costs.

[0033] In the above technical solution, further, the connecting pipe and the filtering structure are connected via a flange.

[0034] In the present technical solution, the connecting pipe and the filter structure are connected via a flange, which makes it easy for maintenance personnel to maintain or replace the filter structure, thereby helping to improve production efficiency.

[0035] The beneficial effects of the utility model are:

[0036] 1. Before the air enters the vacuum pump, it is purified by the filter structure installed on the outside of the main body shell to process the solid or liquid particles in the air, so as to prevent the solid or liquid particles from entering the vacuum pump, causing the vacuum pump to lock and increase the loss of mechanical efficiency, thus ensuring the normal use of the vacuum pump and extending the service life of the device. In addition, by setting up multiple sets of filter structures, the cleanliness of the air can be further improved, which is conducive to extending the service life of the equipment.

[0037] 2. When the filtered air enters the main body shell through the air inlet pipe, the cooperation between the cooler, the circulation pipe and the coolant can reduce the temperature of the air inlet pipe, thereby reducing the temperature of the blown air, which is beneficial to improve the heat dissipation efficiency of the vacuum pump and extend the service life of the vacuum pump. Among them, a semiconductor cooling sheet is set in the cooler to improve the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0039] Figure 2 It is a cross-sectional view of the main housing shell of the utility model;

[0040] Figure 3 It is a cross-sectional view of the filtering structure of the utility model;

[0041] Figure 4 This utility model Figure 2 A magnified image of area A;

[0042] The symbols in the figure are:

[0043] 1. Mainframe housing; 2. Vacuum pump; 3. Connecting pipe; 4. Filter structure; 401. Filter tank; 402. Air inlet pipe; 403. Air outlet pipe; 404. Moisture filter cartridge; 405. Sealing ring; 406. Fixing ring; 407. Threaded pipe; 408. Filter element; 409. Cavity; 5. Connecting pipe; 6. Delivery pipe; 7. Diverter pipe; 8. Sealing sleeve; 9. Dust filter cloth; 10. Air inlet pipe; 11. Cooling structure; 1101. Air inlet channel; 1102. Filter plate; 1103. Circulation pipe; 1104. Cooler; 1105. Connecting slot; 12. Air avoidance slot; 13. Fan; 14. Air outlet; DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0047] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0048] It should be noted that, in the present application, the terms "comprise", "include" or any other variant 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, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0049] Embodiment 1:

[0050] Depend on Figure 1-Figure 3 As shown, this embodiment provides a negative pressure adsorption system, including:

[0051] A main body housing 1, in which a vacuum pump 2 is installed for extracting vacuum; a filtering structure 4, which is arranged on the outside of the main body and is provided in multiple groups; a connecting pipe 3, which is arranged between the vacuum pump 2 and the filtering structure 4 for conveying filtered air; a conveying pipe 6, which is arranged between the filtering structure 4 and a process equipment that needs to extract vacuum, and a plurality of shunt pipes 7 are arranged on the conveying pipe 6, and a valve is arranged between the shunt pipe 7 and the conveying pipe 6; wherein the multiple filtering structures 4 are connected head to tail through a connecting pipe 5.

[0052] Before the air enters the vacuum pump 2, it is purified by the filtering structure 4 arranged on the outside of the main body housing 1 to process the solid or liquid particles in the air, so as to prevent the solid or liquid particles from entering the vacuum pump 2 and causing the vacuum pump 2 to lock, increase the loss of mechanical efficiency, ensure the normal use of the vacuum pump 2, and help to extend the service life of the device.

[0053] Furthermore, the filtering structure 4 includes: a filter tank 401, which is hollow and has an air inlet pipe 402 and an air outlet pipe 403 at both ends of the filter tank 401; a moisture filter cartridge 404, which is arranged in the filter tank 401 and cooperates with the air inlet pipe 402, and the surface of the moisture filter cartridge 404 is provided with air holes; a sealing ring 405, which is arranged between the moisture filter cartridge 404 and the inner wall of the filter tank 401 and is arranged close to the air inlet pipe 402, so that a cavity 409 is formed between the filter tank 401 and the moisture filter cartridge 404; a fixing ring 406, which is arranged below the moisture filter cartridge 404, and a threaded tube 407 is fixedly arranged at the center of the fixing ring 406 away from the moisture filter cartridge 404; a filter element 408, which is arranged below the fixing ring 406 and connected to the threaded tube 407.

[0054] The air enters the moisture filter cartridge 404, through which the air can be dehumidified, and the treated air cavity 409 flows to the filter element 408, through which the solid particles in the air can be filtered, and the multiple groups of filter structures 4 can further improve the cleanliness of the air, which is conducive to extending the service life of the equipment. The moisture filter cartridge 404 is made of calcium chloride.

[0055] Furthermore, sealing sleeves 8 are symmetrically arranged between the outer wall of the filter element 408 and the filter tank 401 , and dust filter cloths 9 are arranged between the sealing sleeves 8 .

[0056] The cooperation between the sealing sleeve 8 and the dust filter cloth 9 can filter the air filtered by the filter element 408 again, thereby further improving the cleanliness of the air.

[0057] Embodiment 2:

[0058] Depend on Figure 1-Figure 4 As shown, this embodiment provides a negative pressure adsorption system, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0059] Furthermore, an air inlet pipe 10 is provided below the mainframe housing 1, an air outlet 14 is provided on the side wall, and an air avoidance groove 12 is provided below the vacuum pump 2 in the mainframe housing 1, a cooling structure 11 is provided in the air avoidance groove 12, and the cooling structure 11 includes: an air inlet channel 1101, the air inlet channel 1101 is transversely arranged below the air avoidance groove 12, and the air inlet channel 1101 is connected to the air inlet pipe 10; a cooler 1104, the cooler 1104 It is arranged in the air avoidance groove 12, and a connecting groove 1105 is arranged below the cooler 1104; the filter plate 1102, the filter plate 1102 is embedded on the outer wall of the main body shell 1, and cooperates with the air inlet channel 1101; the circulation pipe 1103, the circulation pipe 1103 is annularly sleeved on the air inlet pipe 10, and the circulation pipe 1103 is connected with the cooler 1104; wherein, cooling liquid flows in the cooler 1104 and the circulation pipe 1103.

[0060] After the air enters the main housing 1 through the air inlet channel 1101, it passes through the filter plate 1102, which is beneficial to reduce dust in the air and improve the service life of the vacuum pump 2. When the filtered air enters the main housing 1 through the air inlet pipe 10, the temperature of the air inlet pipe 10 can be reduced through the cooperation between the cooler 1104, the circulation pipe 1103, and the coolant, thereby reducing the temperature of the blown air, which is beneficial to improve the heat dissipation efficiency of the vacuum pump 2 and extend the service life of the vacuum pump 2. Among them, the cooler 1104 is provided with a semiconductor cooling sheet to improve the cooling effect.

[0061] Furthermore, fans 13 are disposed in the air inlet pipe 10 and the air outlet 14 .

[0062] The fan 13 can speed up the flow of air in the mainframe housing 1, thereby reducing the temperature in the mainframe housing 1 and preventing the vacuum pump 2 from overheating, which is beneficial to extending the service life of the equipment.

[0063] In the above technical solution, further, the vacuum pump 2 is a magnetic levitation fan.

[0064] By using a magnetic levitation fan as the power source, it is possible to extract positions and multiple vacuum degrees at the same time, greatly reducing mechanical efficiency losses and helping to reduce production costs.

[0065] Furthermore, the connecting pipe 5 and the filtering structure 4 are connected via a flange.

[0066] In the present technical solution, the connecting pipe 3 and the filter structure 4 are connected via a flange, which makes it easy for maintenance personnel to maintain or replace the filter structure 4, thereby improving production efficiency.

[0067] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A negative pressure adsorption system, characterized in that ,include: A main engine housing (1), wherein a vacuum pump (2) is installed in the main engine housing (1) for extracting a vacuum; A filtering structure (4), wherein the filtering structure (4) is arranged outside the main unit and is provided in multiple groups; A connecting pipe (3), the connecting pipe (3) being arranged between the vacuum pump (2) and the filtering structure (4) and being used for conveying filtered air; A delivery pipe (6), wherein the delivery pipe (6) is arranged between the filtering structure (4) and a process device that needs to extract a vacuum, and a plurality of branch pipes (7) are arranged on the delivery pipe (6), and a valve is arranged between the branch pipe (7) and the delivery pipe (6); The multiple filtering structures (4) are connected head to tail via a connecting pipe (5).

2. A negative pressure adsorption system according to claim 1, characterized in that: The filtering structure (4) comprises: A filter tank (401), wherein the filter tank (401) is hollow, and an air inlet pipe (402) and an air outlet pipe (403) are respectively provided at two ends of the filter tank (401); A moisture filter cartridge (404), wherein the moisture filter cartridge (404) is disposed in the filter tank (401) and matches the air inlet pipe (402), and a vent hole is disposed on the surface of the moisture filter cartridge (404); A sealing ring (405), the sealing ring (405) being arranged between the moisture filter cartridge (404) and the inner wall of the filter tank (401), and being arranged close to the air inlet pipe (402), so that a cavity (409) is formed between the filter tank (401) and the moisture filter cartridge (404); A fixing ring (406), the fixing ring (406) being arranged below the moisture filter cartridge (404), and a threaded tube (407) being fixedly arranged at the center of the fixing ring (406) on a side away from the moisture filter cartridge (404); A filter element (408), wherein the filter element (408) is disposed below the fixing ring (406) and connected to the threaded tube (407).

3. A negative pressure adsorption system according to claim 2, characterized in that: A sealing sleeve (8) is symmetrically arranged between the outer wall of the filter element (408) and the filter tank (401), and a dust filter cloth (9) is arranged between the sealing sleeves (8).

4. A negative pressure adsorption system according to claim 1, characterized in that: An air inlet pipe (10) is arranged below the main engine housing (1), an air outlet (14) is arranged on the side wall, and an air avoidance groove (12) is arranged below the vacuum pump (2) in the main engine housing (1), and a cooling structure (11) is arranged in the air avoidance groove (12).

5. A negative pressure adsorption system according to claim 4, characterized in that: The cooling structure (11) comprises: An air inlet channel (1101), the air inlet channel (1101) being arranged transversely below the air avoidance slot (12), and the air inlet channel (1101) being arranged in communication with the air inlet pipe (10); A cooler (1104), wherein the cooler (1104) is disposed in the air avoidance groove (12), and a connecting groove (1105) is provided through the bottom of the cooler (1104); A filter plate (1102), the filter plate (1102) is embedded in the outer wall of the main body housing (1) and cooperates with the air inlet channel (1101); A circulation pipe (1103), wherein the circulation pipe (1103) is annularly sleeved on the air inlet pipe (10), and the circulation pipe (1103) is connected to the cooler (1104); Wherein, cooling liquid is flowed in the cooler (1104) and the circulation pipe (1103).

6. A negative pressure adsorption system according to claim 5, characterized in that: A fan (13) is provided in both the air inlet pipe (10) and the air outlet (14).

7. A negative pressure adsorption system according to claim 1, characterized in that: The vacuum pump (2) is a magnetic suspension fan.

8. The negative pressure adsorption system according to claim 1, characterized in that: The connecting pipe (5) and the filtering structure (4) are connected via a flange.

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