Independent vacuum system inlet air filtering special device

Abstract

The utility model discloses a special device for air intake filtering of an independent vacuum system, which belongs to the technical field of vacuum systems and comprises a main filtering tank body and a standby filtering tank body which are arranged on a main pipeline, degradable filter elements are arranged in the tank bodies; the tank body is connected with a switching exhaust pipe and a switching air inlet pipe; the device further comprises a detection part, the detection part comprises a differential pressure gauge and an alarm which are connected with the controller, and the differential pressure gauge is arranged between the switching exhaust pipe and the switching air inlet pipe. The two filtering tank bodies are mounted on the main pipeline, so that the air inlet centralized filtering of the vacuum pump group is realized, and the air inlet filtering pressure and the fault frequency of a single vacuum pump are reduced; when the filter element needs to be cleaned, only the filter element of the main filter tank body needs to be cleaned, the maintenance operation time and workload are reduced, the standby filter tank body continues to work, and continuous production is guaranteed; differential pressure gauges are arranged on the two sides of the tank body to detect the state of the inner filter element, and when it is detected that the pressure difference value on the two sides does not meet the requirement, an alarm gives an alarm in time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum system technical field, concretely relates to a special device for independent vacuum system air inlet filter. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] In the vacuum system, a large amount of dust will be generated along with the vacuum process, on the one hand, if the dust is sucked into the oil seal vacuum pump along with the gas and mixed in the pump oil, then it will be like an abrasive to accelerate the wear of the parts in the pump cavity, the pump rotor and the pump cavity will be damaged due to wear and tear, the oil circuit will be blocked, and in severe cases, the pump will stop running, on the other hand, if the dust enters the vacuum valve, the pump seal will be ineffective, resulting in leakage. Therefore, the prevention and filtration of dust have become the key problem to prolong the service life of the vacuum system and improve the productivity. In the vacuum system with dust, a dust filter must be used.

[0004] At present, the dust filter device of the vacuum system with multiple vacuum equipment (vacuum pump) in parallel operation is realized by the filter integrated on each equipment. For some large manufacturing enterprises such as cigarette factories, etc., due to the difference in the running state, cycle and other aspects of the equipment in operation, when cleaning the filter element, each vacuum equipment needs to be checked and cleaned separately, which not only increases the maintenance workload and working time, but also affects the air inlet efficiency of each vacuum equipment and the utilization level of the vacuum equipment. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a special device for independent vacuum system air inlet filter, by installing two filter tank bodies on the main pipeline, and canceling the separate installation of filter on each vacuum equipment, the equipment filter device is simplified, the air inlet centralized filtration of vacuum pump group is realized, the air inlet efficiency of vacuum pump group is improved, the air inlet filtration pressure and failure frequency of single vacuum pump are reduced, and the energy utilization level of vacuum pump is improved. When the filter element needs to be cleaned, only the filter element of the main filter tank body needs to be cleaned, which can greatly reduce the replacement frequency of the original single vacuum pump air inlet filter, and reduce the maintenance operation time and workload.

[0006] To achieve the above purpose, the utility model takes the following technical scheme:

[0007] A special device for independent vacuum system air inlet filter, comprising a main pipeline, the main pipeline has a pipeline and an exhaust pipeline, two same filter tank bodies are arranged in parallel on the main pipeline, which are a main filter tank body and a standby filter tank body;

[0008] The filter tank body is internally provided with a filter core part, and the filter core part adopts a degradable filter core;

[0009] The filter tank body is connected with an adapter exhaust pipe and an adapter air inlet pipe; the adapter exhaust pipe is provided with an exhaust valve, and the adapter air inlet pipe is provided with an air inlet valve;

[0010] The detection part comprises a differential pressure gauge and an alarm connected with the controller, one end of the differential pressure gauge is connected with the adapter exhaust pipe, and the other end is connected with the adapter air inlet pipe.

[0011] Preferably, the filter tank body adopts a transversely arranged cylindrical carbon steel tank body, and the filter tank body comprises a tank body, one end of the tank body is provided with a movable end cover, and the other end is provided with a closed end cover.

[0012] Preferably, a sealing part is arranged between the tank body and the movable end cover, and the sealing part adopts rubber sealing.

[0013] Preferably, a first ear plate is arranged on one side of the movable end cover, a second ear plate is arranged on one side of the tank body, and the first ear plate and the second ear plate are connected through a movable bolt.

[0014] Preferably, a plurality of fixing bolt holes are uniformly arranged on the end of the tank body provided with the movable end cover in a circumferential direction.

[0015] Preferably, the same number of fixing bolt holes are uniformly arranged on the movable end cover in a circumferential direction, and the fixing bolt holes on the tank body and the movable end cover are one-to-one corresponding, and the tank body and the movable end cover are tightly connected through fixing bolts.

[0016] Preferably, an exhaust port is arranged at the center of the closed end cover, and an air inlet port is fixedly arranged on the side wall of the tank body.

[0017] Preferably, the exhaust port is connected with the adapter exhaust pipe, and the air inlet port is connected with the adapter air inlet pipe.

[0018] Preferably, a support is arranged at the bottom of the tank body, the support comprises a bottom frame, four vertical columns are welded at four corners of the bottom frame, and an arc support is arranged between two vertical columns, and the radius of the arc support is consistent with the radius of the outer wall of the tank body.

[0019] Preferably, one end of the main pipeline is an air inlet end, and the other end is an air outlet end, the air outlet end is connected with a plurality of vacuum pumps, and no filter device is arranged on the vacuum pumps.

[0020] Compared with the prior art, the utility model has the advantages and positive effects that:

[0021] The utility model discloses a filter tank body is installed on the main pipeline, and one is main filter tank body, and the other is spare filter tank body, cancels the filter of installing separately on each vacuum equipment, and the change of such simplifies equipment filter device, realizes the air intake concentrated filtration of vacuum pump group, reduces the air intake filtration pressure of single vacuum pump, through the effective filtration of the impurity of the air intake pipeline of vacuum pump group, can improve the air intake efficiency of vacuum pump group, reduces the trouble frequency of vacuum pump, improves the energy utilization level of vacuum pump, and two are only needed when needing to clean the filter core of main filter tank body, can greatly reduce the replacement frequency of original single vacuum pump air intake filter, reduces the maintenance operation time and workload.

[0022] The utility model discloses a filter tank body's both sides set up differential pressure gauge detection tank body both sides's differential pressure to judge the working state of internal filter core whether is unusual, when detecting that filter core both sides pressure difference value does not satisfy the set requirement, alarm can in time carry out the alarm suggestion, adopt movable end cap and tank body main part movable connection, can be convenient for staff to open tank body and clean or replace filter core, also reduced movable end cap when dismounting the security risk of pressing, effectively guaranteed the personal safety of equipment maintenance personnel, adopt main filter tank body and spare filter tank body two filter tank bodies, when needing to clean or replace filter core of main filter tank body, spare filter tank body can continue working, guarantees the continuity of production work. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings accompanying the specification illustrate further aspects of the present utility model, and should be considered in all respects as illustrative and not restrictive, insofar as the utility model is concerned.

[0024] Figure 1 It is the whole structure schematic diagram of the device of the utility model embodiment;

[0025] Figure 2 It is the side view of the tank body of the utility model embodiment;

[0026] Figure 3 It is the half cutaway view of the front of the tank body of the utility model embodiment;

[0027] Figure 4 It is the schematic diagram of the support part of the utility model embodiment;

[0028] In the drawing:

[0029] 1, filter tank; 11, tank body; 111, exhaust port; 112, air inlet; 113, adapter exhaust pipe; 114, exhaust valve; 115, adapter air inlet pipe; 116, air inlet valve; 117, main pipeline; 118, differential pressure gauge; 12, movable end cover; 121, first lug; 122, second lug; 123, movable bolt; 124, fixed bolt; 2, filter element part; 21, filter element; 3, support part; 31, bottom frame; 32, column; 33, arc support. DETAILED DESCRIPTION

[0030] It should be noted that the following detailed description is exemplary and is intended to further explain the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0031] The present application will be described in detail below with reference to the accompanying drawings. The independent vacuum system air inlet filter device disclosed in the present embodiment comprises two identical filter tanks 1, as shown in the drawings, which are connected in parallel to the main pipeline 117. The main pipeline 117 has an air inlet pipeline and an exhaust pipeline, and the filter tank 1 is arranged between the air inlet pipeline and the exhaust pipeline. The exhaust pipeline is connected to a plurality of vacuum pumps, and no filter device is arranged on the vacuum pumps. Figure 1

[0032] As shown in the drawings, Figure 1 , Figure 2 The filter tank 1 is a horizontally arranged cylindrical carbon steel tank. The filter tank 1 comprises a tank body 11, and a movable end cover 12 is arranged at one end of the tank body. The other end of the tank body 11 is a closed end cover, the center of which is provided with an exhaust port 111. An air inlet 112 is fixedly arranged on the side wall of the tank body. An adapter exhaust pipe 113 is connected to the exhaust port, and an exhaust valve 114 is arranged on the adapter exhaust pipe. An adapter air inlet pipe 115 is connected to the air inlet, and an air inlet valve 116 is arranged on the adapter air inlet pipe. The adapter air inlet pipe and the adapter exhaust pipe are made of carbon steel. The diameter of the exhaust valve or the air inlet valve matches that of the adapter air inlet pipe or the adapter exhaust pipe, which is used to control the opening degree of the air inlet or the air outlet.

[0033] As shown in the drawings, Figure 1 The two filter tanks 1 are connected to the main pipeline 117. One of the two filter tanks is a main filter tank, and the other is a standby filter tank. They are in parallel connection, that is, the adapter air inlet pipes of the two filter tanks 1 are connected to the air inlet pipeline, and the adapter exhaust pipes are connected to the exhaust pipeline. When the main filter tank needs to be replaced or the filter element needs to be cleaned, the standby filter tank is started to work, so as to ensure the continuity of production. It can be understood that the two filter tanks can both be used as the main filter tank.

[0034] As​Figure 3 As shown, the filter core part 2 is arranged inside the tank body 11, and the filter core part 2 includes a plurality of filter cores 21 which are evenly arranged inside the tank body 1. In this embodiment, four 460-mesh wood pulp fiber filter cores are used. The filter cores with this mesh number will not affect the air intake of the vacuum pump, and ensure the normal operation of the vacuum pump. The filter cores with this material are used because they have good filtering performance, high strength, folding resistance, wear resistance and other advantages, and can work stably. Mainly, the wood pulp fiber filter core can be degraded and decomposed into harmless substances such as carbon dioxide and water. In actual production, when the filter core needs to be replaced, the discarded filter core will not pollute the environment.

[0035] The detection part is also provided, and the detection part is a differential pressure gauge 118 with a required range and accuracy. One end of the differential pressure gauge is connected to the adapter air inlet pipe, and the other end is connected to the adapter air outlet pipe. The differential pressure between the two sides of the filter tank 1 can be monitored through the differential pressure gauge, so that the gas permeability of the filter core in the filter tank 1 can be judged according to the differential pressure, and it is determined whether the filter core in the current filter tank 1 needs to be cleaned or replaced.

[0036] It can be understood that the differential pressure gauge is a differential pressure sensor which can be connected to a controller and transmit differential pressure information to the controller. The controller is of the prior art, and the controller is also connected to an alarm. When the controller receives a differential value measured by the differential pressure gauge that exceeds a set range, it is determined that the filtering function of the filter core inside the tank body is reduced, and an alarm is given to prompt the staff to check the state of the filter core. The staff can clean or replace the filter core in time according to the actual state of the filter core. It can be understood that the process of controlling the alarm of the alarm by the controller receiving the information of the differential pressure gauge is realized by the prior art.

[0037] As shown in Figure 2 The first lug plate 121 is arranged on one side of the movable end cover 12, and the second lug plate 122 is arranged on one side of the tank body. The first lug plate and the second lug plate are connected by the movable bolt 123, so as to realize the movable connection between the movable end cover and the tank body.

[0038] It should be noted that a plurality of fixing bolt holes are evenly arranged on one end of the tank body which is provided with the movable end cover in the circumferential direction. Similarly, the same number of fixing bolt holes are evenly arranged on the movable end cover in the circumferential direction. Moreover, the fixing bolt holes on the tank body and the movable end cover correspond to each other in position, and the tank body and the movable end cover are tightly connected by the fixing bolt 124. The movable end cover can be conveniently opened when the filter core needs to be cleaned or replaced. Moreover, the connection mode of the movable end cover and the tank body also reduces the safety risk of being pressed when the movable end cover is disassembled, and effectively protects the personal safety of the equipment maintenance personnel.

[0039] A sealing part is arranged between the tank body and the movable end cover, and in the embodiment, the sealing part is a 5mm rubber seal, which is used to ensure the air tightness of the tank body and prevent air leakage.

[0040] As shown in Figure 1 , the tank body bottom is provided with a support part 3, which is in the form of a bracket made of carbon steel. As shown in Figure 4 , the bracket includes a bottom frame 31, four corners of the bottom frame 31 are welded with a stand column 32, and an arc support 33 is arranged between the two stand columns 32, and it can be understood that the radius of the arc support 33 is consistent with the radius of the outer wall of the tank body. By arranging the support part 3, the tank body is supported to ensure its stability, and the bracket can not only ensure its bearing capacity, but also not occupy too much area.

[0041] Working principle:

[0042] The gas containing impurities enters the main filter tank through the gas inlet pipeline for filtration, and the filtered gas is discharged from the main filter tank through the gas outlet pipeline and is respectively sent into a plurality of vacuum pumps, and finally the vacuum pump group completes the suction action and is discharged into the atmosphere, so that the required vacuum degree is obtained;

[0043] When the alarm of the main filter tank sounds, the staff can switch the filtration work from the main filter tank to the standby filter tank by opening the gas inlet valve and the gas outlet valve of the standby filter tank and closing the gas inlet valve and the gas outlet valve of the main filter tank.

[0044] At this time, the movable end cover of the main filter tank can be opened for inspection, and the filter element of the main filter tank can be cleaned or replaced.

[0045] The utility model discloses a filter tank is installed on the main pipeline two same, one is the main filter tank, the other is the standby filter tank, cancels the filter of installation on each vacuum equipment alone, such change one is to simplify the equipment filter device, realizes the air intake concentrated filtration of vacuum pump group, reduces the air intake filtration pressure of single vacuum pump, through the effective filtration of the impurity of the air inlet pipeline of vacuum pump group, can improve the air intake efficiency of vacuum pump group, reduces the failure frequency of vacuum pump, improves the energy utilization level of vacuum pump, two when the filter core needs to be cleaned, only need to clean the filter core of the main filter tank, can greatly reduce the replacement frequency of the original single vacuum pump air intake filter, reduces the maintenance operation time and workload.

[0046] The utility model discloses a differential pressure gauge is arranged on the both sides of filter jar body to detect the pressure difference of both sides of jar body, thereby judges the working state of internal filter core whether is abnormal, when detecting that filter core both sides pressure difference value does not satisfy the set requirement, alarm can timely alarm and prompt, adopt movable end cap and jar body main body swing joint, can open jar body and clean or replace filter core for staff conveniently, also has reduced the safety risk of pressure injury when movable end cap dismounting, has effectively guaranteed the personal safety of equipment maintenance personnel, adopts main filter jar body and spare filter jar body two filter jar bodies, when main filter jar body needs to clean or replace filter core, and spare filter jar body can continue working, guarantees the continuity of production work.

[0047] The above describes the specific embodiments of the utility model in connection with the drawings, but is not the limitation of the protection scope of the utility model, and the skilled in the art should understand that various modifications or deformation made on the basis of the technical scheme of the utility model without creative labor still within the protection scope of the utility model.

Claims

1. A stand-alone vacuum system air intake filter dedicated device comprising a main line having an intake line and an exhaust line, characterized in that, Two same filter can bodies are arranged in parallel on the main pipeline, which are a main filter can body and a standby filter can body respectively; A filter core part is arranged in the filter can body, and the filter core part adopts a degradable filter core; An adapter exhaust pipe and an adapter air inlet pipe are connected to the filter can body; An exhaust valve is arranged on the adapter exhaust pipe, and an air inlet valve is arranged on the adapter air inlet pipe; A detection part is further included, which includes a pressure difference meter and an alarm connected with a controller, one end of the pressure difference meter is connected with the adapter exhaust pipe, and the other end is connected with the adapter air inlet pipe.

2. A stand-alone vacuum system air intake filter dedicated device as claimed in claim 1, characterized in that, The filter can body adopts a transversely arranged cylindrical carbon steel can body, and the filter can body includes a can body body, one end of the can body body is provided with a movable end cover, and the other end is provided with a closed end cover.

3. A stand-alone vacuum system air intake filter dedicated device as claimed in claim 2, wherein, A sealing part is arranged between the can body body and the movable end cover, and the sealing part adopts rubber sealing.

4. A stand-alone air intake filter system for a vacuum system as claimed in claim 2, wherein, A first ear plate is arranged on one side of the movable end cover, and a second ear plate is arranged on one side of the can body body, and the first ear plate and the second ear plate are connected through a movable bolt.

5. A stand-alone air intake filter system for a vacuum system as defined in claim 2, wherein, A plurality of fixing bolt holes are uniformly arranged on one end of the can body body provided with the movable end cover in the circumferential direction.

6. A stand-alone vacuum system air intake filter dedicated device as claimed in claim 5, wherein, The movable end cover is also uniformly provided with the same number of fixing bolt holes in the circumferential direction, and the fixing bolt holes on the can body body and the movable end cover are one-to-one corresponding, and the can body body and the movable end cover are tightly connected through the fixing bolt.

7. A stand-alone air intake filter system for a vacuum system as defined in claim 2, wherein, An exhaust port is arranged at the center of the closed end cover, and an air inlet is fixedly arranged on the side wall of the can body body.

8. A stand-alone vacuum system air intake filter dedicated device as claimed in claim 7, wherein, The adapter exhaust pipe is connected to the exhaust port, and the adapter air inlet pipe is connected to the air inlet.

9. A stand-alone air intake filter system for a vacuum system as defined in claim 2, wherein, A support is arranged at the bottom of the can body body, the support includes a bottom frame, four vertical columns are welded at four corners of the bottom frame, and an arc support is arranged between two vertical columns, and the radius of the arc support is consistent with the radius of the outer wall of the can body body.

10. A stand-alone air intake filter system for a vacuum system as defined in claim 1, wherein, One end of the main pipeline is an air inlet end, and the other end is an air outlet end, the air outlet end is connected with a plurality of vacuum pumps, and no filter device is arranged on the vacuum pumps.

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