A cleaning system for a vacuum pump set

Abstract

A kind of cleaning system of vacuum pump set, the system includes independently arranged external module, it includes filter unit, cleaning agent unit and electrical control unit.Vacuum pump set's air inlet and air outlet are communicated with filter unit by external pipeline with control valve, form circulation channel;Cleaning agent unit injects cleaning agent to circulation channel by filling pipeline, and the flow of cleaning agent is controlled by delivery pump.The system also includes air drying air inlet unit, waste collection unit and compressed air unit, respectively for air drying, pollution and vacuum pump set dredging operation;Filter unit is equipped with pneumatic filter screen cleaning device, and self-cleaning is realized by compressed air driving.All control valves can be solenoid valve, and electrical control unit is centrally controlled, to reduce manual intervention.The utility model is modular design, can serve multiple vacuum pump set simultaneously, significantly reduce cost, improve cleaning efficiency and maintenance convenience, suitable for the maintenance of vacuum pump set in industrial field.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump equipment technology, and in particular to a cleaning system for a vacuum pump unit. Background Technology

[0002] In industrial processing and manufacturing, such as thin-film processing, photovoltaic manufacturing, and pharmaceutical packaging, large amounts of waste gas and fine media, including unstable low-molecular-weight polymers and pharmaceutical powders, are often generated during production. If these media remain in the processing area, they can seriously affect product quality. Therefore, vacuum pump units are typically used to remove them promptly to ensure a clean production environment and process stability.

[0003] However, vacuum pump units operate at high temperatures, and the temperature drops after shutdown, making it easy for some media to adhere to the inside of the unit. Long-term accumulation not only affects the operating efficiency of the unit but may also breed contaminants, threatening production hygiene. Therefore, regular cleaning and maintenance of the vacuum pump units are necessary.

[0004] Existing cleaning solutions typically require separate circulation lines and filter units for each pump unit. Multiple pump units require repeated configuration of lines and filter units, resulting in extremely high costs, large space requirements, and significant inconvenience in operation and maintenance.

[0005] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a cleaning system for vacuum pump units to solve the above problems.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solution of this utility model and facilitating the understanding of those skilled in the art. It should not be assumed that the above content is known to those skilled in the art simply because it has been described in the background section of this utility model. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this utility model provides a modular and mobile circulating cleaning and maintenance system that enables rapid docking with multiple vacuum pump sets, reducing equipment costs and maintenance difficulty.

[0008] This utility model discloses a cleaning system for a vacuum pump unit. The air inlet of the vacuum pump unit is connected to a main air inlet pipe equipped with a first control valve, and the air outlet is connected to a main exhaust pipe equipped with a second control valve. The cleaning system includes an external module, which comprises a filter unit, a cleaning agent unit, and an electrical control unit, wherein:

[0009] The air inlet of the vacuum pump unit is connected to the first port of the filter unit through a first external pipe with a third control valve, and the air outlet of the vacuum pump unit is connected to the second port of the filter unit through a second external pipe with a fourth control valve to form a circulation channel.

[0010] The cleaning agent unit is connected to the inlet of the delivery pump via a filling pipe, and the outlet of the delivery pump is connected to the first external pipe via a first inlet branch pipe with a fifth control valve. The delivery pump is communicatively connected to the electrical control unit.

[0011] Preferred technical solution: The external module also includes a drying air intake unit for supplying fresh air to the circulation channel.

[0012] Preferred technical solution: The air-drying intake unit is connected to the first external pipe through an air-drying pipe with a sixth control valve.

[0013] Preferred technical solution: The external module also includes a waste collection unit for collecting pollutants accumulated in the filter unit. The waste collection unit is connected to the lower end of the filter unit through a drain pipe with a seventh control valve.

[0014] Preferred technical solution: The external module also includes a compressed air unit for supplying compressed air to the circulation channel.

[0015] Preferred technical solution: The compressed air unit is connected to the first external pipe through the first branch air inlet pipe with an eighth control valve; a ninth control valve is provided at the connection between the first port of the filter unit and the first external pipe.

[0016] Preferred technical solution: The filter unit is equipped with a pneumatic filter cleaning device, and the outlet of the delivery pump is connected to the filter unit through a second liquid inlet branch pipe with a tenth control valve; the compressed air unit is also connected to the filter unit through a second branch air inlet pipe with an eleventh control valve, which is used to drive the pneumatic filter cleaning device.

[0017] Preferred technical solution: The electrical control unit and the rest of the external module are set up separately.

[0018] Preferred technical solution: The control valve can be a solenoid valve, and each solenoid valve is communicatively connected to the electrical control unit.

[0019] Preferred technical solution: The number of vacuum pump units is two or more, and each vacuum pump unit is connected in parallel between the main air intake pipe and the main exhaust pipe.

[0020] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0021] The external module in this invention, via an external pipe equipped with a control valve, can form independently controlled circulation channels with multiple vacuum pump groups. One external module can serve multiple vacuum pump groups, significantly reducing equipment procurement and maintenance costs. The external module uses the vacuum pumps to provide driving force, causing the cleaning fluid to circulate and clean the vacuum pump groups along the circulation channels, resulting in excellent cleaning performance. A drying air intake unit supplies fresh air into the circulation channels, achieving a drying effect. The cleaning agent unit can directly inject cleaning fluid into the vacuum pumps, soaking any blockages. Compressed air from the compressed air unit pressurizes and pushes the cleaning fluid from the external pipes towards the vacuum pumps, thus unclogging them. A waste collection unit is included to promptly discharge accumulated contaminants from the filter unit, preventing secondary pollution to the vacuum pumps. The filter unit is equipped with a pneumatic filter cleaning device, driven by the compressed air unit. This device, in conjunction with the cleaning agent delivery from the cleaning agent unit and the waste collection unit's discharge of contaminants, enables rapid self-cleaning of the filter unit, improving its maintenance efficiency and lifespan. The delivery pump is automatically controlled by an electrical control unit. The control valves can all be solenoid valves and are centrally controlled by the electrical control unit, reducing manual intervention and improving work efficiency and accuracy. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the cleaning system structure of the vacuum pump unit in Example 1;

[0024] Figure 2 This is a schematic diagram of the cleaning system structure of the vacuum pump unit in Example 2;

[0025] Figure 3 This is a schematic diagram of the cleaning system structure of the vacuum pump unit in Example 3;

[0026] Figure 4 This is a schematic diagram of the cleaning system structure of the vacuum pump unit in Example 4;

[0027] Figure 5 This is a schematic diagram of the cleaning system structure of the vacuum pump unit in Example 5.

[0028] In the attached diagrams above, 101 is the vacuum pump unit; 102 is the main intake pipe; 103 is the main exhaust pipe; 104 is the first control valve; 105 is the second control valve; 200 is the external module; 201 is the filter unit; 202 is the cleaning agent unit; 203 is the electrical control unit; 204 is the first external pipe; 205 is the second external pipe; 206 is the third control valve; 207 is the fourth control valve; 208 is the filling pipe; 209 is the delivery pump; and 210 is the first intake pipe. 211. Liquid inlet branch pipe; 212. Fifth control valve; 213. Air drying intake unit; 214. Air drying duct; 215. Sixth control valve; 216. Waste collection unit; 217. Sewage discharge duct; 218. Seventh control valve; 219. Compressed air unit; 220. First branch air inlet pipe; 221. Eighth control valve; 222. Ninth control valve; 223. Second liquid inlet branch pipe; 224. Tenth control valve; 225. Second branch air inlet pipe; 226. Eleventh control valve. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the purposes of describing embodiments of this application herein. Furthermore, the terms "comprising" and "having," and their synonyms, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0033] Furthermore, the terms "installation," "setting," "equipped with," "connection," "linking," "fitting," and "fitting" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Similarly, "fitting" can mean completely or partially fitted. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Example 1:

[0036] like Figure 1 As shown, the air inlet of the vacuum pump assembly 101 is connected to the main air inlet pipe 102, and the main air inlet pipe 102 is equipped with a first control valve 104. The exhaust port of the vacuum pump assembly 101 is connected to the main exhaust pipe 103, and the main exhaust pipe 103 is equipped with a second control valve 105. To solve the problems of complex structure arrangement and difficult maintenance of the vacuum pump assembly 101, this utility model discloses a cleaning system for a vacuum pump assembly, which includes an independently set external module 200. The external module 200 includes a filter unit 201, a cleaning agent unit 202, and an electrical control unit 203. The main components of this utility model will be described in detail below:

[0037] The air inlet of the vacuum pump assembly 101 is connected to the first port of the filter unit 201 via a first external pipe 204 equipped with a third control valve 206, and the exhaust port of the vacuum pump assembly 101 is connected to the second port of the filter unit 201 via a second external pipe 205 equipped with a fourth control valve 207, forming a circulation channel. The opening and closing of the circulation channel is controlled by the third control valve 206 and the fourth control valve 207. It should be noted that when cleaning the vacuum pump assembly 101 using the circulation channel, the first control valve 104 and the second control valve 105 are usually kept closed. After cleaning, the second control valve 105 is opened to drain the residual cleaning fluid before the first control valve 104 is opened. It should also be noted that the description of the first and second ports of the filter unit 201 is only for ease of distinguishing the connection positions of the first external pipe 204 and the second external pipe 205 and has no other meaningful indication.

[0038] The cleaning agent unit 202 is connected to the inlet of the delivery pump 209 via the filling pipe 208. The outlet of the delivery pump 209 is connected to the first external pipe 204 via the first inlet branch pipe 210 with the fifth control valve 211. The delivery pump 209 is communicatively connected to the electrical control unit 203. It should be noted that the electrical control unit 203 can be a programmable controller or a manually operated control switch. This embodiment focuses on a programmable controller that enables automated control. It should also be noted that the electrical control unit 203 can be integrated into the external module 200 or separately from the rest of the external module 200; that is, the electrical control unit 203 can be installed independently in another location.

[0039] Cleaning Operation: During use, close the first control valve 104 and the second control valve 105 corresponding to the vacuum pump assembly 101 to be cleaned, and open the third control valve 206 and the fourth control valve 207 corresponding to the vacuum pump assembly 101 to be cleaned, so that the circulation channel formed by the vacuum pump assembly 101 and the filter unit 201 is unobstructed. Start the vacuum pump assembly 101 to form a circulating airflow in the circulation channel. Open the fifth control valve 211 and start the delivery pump 209 to inject the cleaning agent in the cleaning agent unit 202 into the first external pipe 204. The circulating airflow drives the cleaning agent to circulate in the circulation channel, thereby achieving efficient cleaning of the vacuum pump assembly 101. It should be noted that multiple vacuum pump sets 101 can be cleaned individually or simultaneously, making the cleaning operation flexible. One external module 200 can meet the cleaning needs of multiple vacuum pump sets 101, resulting in low equipment cost. Furthermore, since the external module 200 is independently set, it is installed at the vacuum pump set 101 through the first external pipe 204 and the second external pipe 205 during the cleaning operation. After cleaning, it can be removed for individual storage or used for cleaning other vacuum pump sets 101, offering high compatibility and convenient maintenance.

[0040] Example 2: Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the external module 200 also includes a drying air intake unit 212, which is connected to the first external pipe 204 via a drying pipe 213 with a sixth control valve 214. After the cleaning operation is completed, the sixth control valve 214 is opened, and fresh air is introduced into the circulation channel through the drying air intake unit 212 and the drying pipe 213. The second control valve 105 on the main exhaust pipe 103 is opened, and the airflow enters from the air inlet of the vacuum pump group 101 and exits from the main exhaust pipe 103 to perform a drying operation on the vacuum pump group 101.

[0041] Example 3: Figure 3As shown, the difference between this embodiment and Embodiment 2 is that the external module 200 also includes a waste collection unit 215. The waste collection unit 215 is connected to the lower end of the filter unit 201 through a drain pipe 216 with a seventh control valve 217. When a certain amount of pollutants accumulate in the filter unit 201, the vacuum pump group 101 is turned off, and the seventh control valve 217 is opened. Under the action of gravity, the waste is discharged into the waste collection unit 215, preventing the pollutants in the filter unit 201 from re-entering the circulation channel and causing contamination to the vacuum pump group 101. This makes the maintenance of the filter unit 201 more convenient and extends its service life. It should be noted that the waste collection unit 215 can also use a pump group to extract and collect pollutants from the filter unit 201.

[0042] Example 4: Figure 4 As shown, the difference between this embodiment and Embodiment 3 is that the external module 200 further includes a compressed air unit 218, which is connected to the first external pipe 204 via a first branch air inlet pipe 219 with an eighth control valve 220; a ninth control valve 221 is provided at the connection between the first port of the filter unit 201 and the first external pipe 204. It should be noted that "the connection between the first port of the filter unit 201 and the first external pipe 204" refers to a region, indicating that the ninth control valve 221 is closest to the first port of the filter unit 201.

[0043] In use, the first control valve 104, the sixth control valve 214, the eighth control valve 220, and the ninth control valve 221 are closed, while the third control valve 206 and the fifth control valve 211 are opened. The cleaning agent unit 202 injects the cleaning agent directly into the vacuum pump unit 101 via the delivery pump 209 to soak and dissolve stubborn dirt inside the vacuum pump unit 101. Then, the fifth control valve 211 is closed, and the second control valve 105 and the eighth control valve 220 are opened. Compressed air provided by the compressed air unit 218 pushes the cleaning agent into the vacuum pump unit 101, using high pressure to clear blockages. This system utilizes multiple control valves to isolate the main circulation channel, achieving directional clearing and solving the problem of difficult cleaning of the vacuum pump unit 101 due to solidification of the medium. It should be noted that the pipeline connection design in this example is only a preferred solution for achieving directional clearing. Modifications to the pipeline layout using common technical means by those skilled in the art should be included within the protection scope of this utility model.

[0044] Example 5: Figure 5As shown, the difference between this embodiment and embodiment four is that: the filter unit 201 is equipped with a pneumatic filter cleaning device, and the outlet of the delivery pump 209 is connected to the filter unit 201 through the second liquid inlet branch pipe 222 with the tenth control valve 223; the compressed air unit 218 is connected to the filter unit 201 through the second branch air inlet pipe 224 with the eleventh control valve 225, and is used to drive the pneumatic filter cleaning device to clean the filter in the filter unit 201.

[0045] In use, close the eighth control valve 220, the first control valve 104, the third control valve 206, the sixth control valve 214, the fifth control valve 211, and the ninth control valve 221; open the eleventh control valve 225, the fourth control valve 207, and the second control valve 105. Compressed air supplied by the compressed air unit 218 drives the pneumatic filter cleaning device. Simultaneously, the tenth control valve 223 opens, and the cleaning agent unit 202 delivers the cleaning agent to the filter unit 201 via the delivery pump 209. The seventh control valve 217 opens, and the waste collection unit 215 discharges the detached dirt. This avoids manual disassembly and cleaning of the filter unit 201, improving its maintenance efficiency.

[0046] Example 6: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the difference between this embodiment and the above embodiment is that: the first control valve 104, the second control valve 105, the third control valve 206, the fourth control valve 207, the fifth control valve 211, the sixth control valve 214, the seventh control valve 217, the eighth control valve 220, the ninth control valve 221, the tenth control valve 223, and the eleventh control valve 225 can be solenoid valves. The solenoid valves can be communicatively connected to the electrical control unit 203, and the electrical control unit 203 can be used for program control, reducing manual intervention and facilitating the coordinated control of the vacuum pump group 101 and the cleaning system.

[0047] It should be noted that the prefixes "first," "second," ... "eleventh" in the above embodiments for the first control valve 104, the second control valve 105, the third control valve 206, the fourth control valve 207, the fifth control valve 211, the sixth control valve 214, the seventh control valve 217, the eighth control valve 220, the ninth control valve 221, the tenth control valve 223, and the eleventh control valve 225 are only for the convenience of describing the position of each control valve and do not indicate the difference in the model of the control valve.

[0048] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning system for a vacuum pump assembly, wherein the inlet of the vacuum pump assembly is connected to a main inlet pipe equipped with a first control valve, and the outlet is connected to a main exhaust pipe equipped with a second control valve, characterized in that: The cleaning system includes an external module, which comprises a filter unit, a cleaning agent unit, and an electrical control unit; The air inlet of the vacuum pump unit is connected to the first port of the filter unit through a first external pipe with a third control valve, and the exhaust port of the vacuum pump unit is connected to the second port of the filter unit through a second external pipe with a fourth control valve to form a circulation channel. The cleaning agent unit is connected to the inlet of the delivery pump via a filling pipe, and the outlet of the delivery pump is connected to the first external pipe via a first inlet branch pipe with a fifth control valve. The delivery pump is communicatively connected to the electrical control unit.

2. The cleaning system for the vacuum pump assembly according to claim 1, characterized in that: The external module also includes a drying air intake unit for supplying fresh air to the circulation channel.

3. The cleaning system for the vacuum pump assembly according to claim 2, characterized in that: The air-drying intake unit is connected to the first external pipe via an air-drying pipe with a sixth control valve.

4. The cleaning system for the vacuum pump assembly according to claim 1, characterized in that: The external module also includes a waste collection unit for collecting pollutants accumulated in the filter unit, the waste collection unit being connected to the lower end of the filter unit via a drain pipe with a seventh control valve.

5. The cleaning system for the vacuum pump assembly according to claim 1, characterized in that: The external module also includes a compressed air unit for supplying compressed air to the circulation channel.

6. The cleaning system for the vacuum pump assembly according to claim 5, characterized in that: The compressed air unit is connected to the first external pipe via a first branch air inlet pipe with an eighth control valve; a ninth control valve is provided at the connection between the first port of the filter unit and the first external pipe.

7. The cleaning system for the vacuum pump assembly according to claim 6, characterized in that: The filter unit is equipped with a pneumatic filter cleaning device. The outlet of the delivery pump is also connected to the filter unit through a second inlet branch pipe with a tenth control valve. The compressed air unit is also connected to the filter unit through a second branch air inlet pipe with an eleventh control valve, which is used to drive the pneumatic filter cleaning device.

8. The cleaning system for the vacuum pump assembly according to claim 1, characterized in that: The electrical control unit is separate from the rest of the external module.

9. The cleaning system for the vacuum pump assembly according to any one of claims 1 to 8, characterized in that: The control valve may be a solenoid valve, and each solenoid valve is communicatively connected to the electrical control unit.

10. The cleaning system for the vacuum pump assembly according to claim 1, characterized in that: The number of vacuum pump groups is two or more, and each vacuum pump group is arranged in parallel between the main air intake pipe and the main exhaust pipe.

Images