CN202659479U - Device for preventing suck back of vacuum system - Google Patents
Device for preventing suck back of vacuum system Download PDFInfo
- Publication number
- CN202659479U CN202659479U CN 201220363943 CN201220363943U CN202659479U CN 202659479 U CN202659479 U CN 202659479U CN 201220363943 CN201220363943 CN 201220363943 CN 201220363943 U CN201220363943 U CN 201220363943U CN 202659479 U CN202659479 U CN 202659479U
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- vacuum
- control system
- pump motor
- plc module
- utility
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Abstract
The utility model relates to the field of vacuum systems having media and particularly relates to a device for preventing the suck back of a vacuum system. The device comprises a vacuum pump motor, a contactor arranged on the vacuum pump motor, a motor control switch of the vacuum pump motor, a control system PLC (Programmable Logic Controller) module and a vacuum pipeline cutting off mechanism, wherein the control system PLC module can be used for sending an indicating signal to the vacuum pipeline cutting off mechanism when detecting the abnormal operation of the vacuum pump motor. The device provided by the utility model is used for solving the suck back problem of the vacuum system, and effectively eliminating the suction of any medium, and is high in controllability; and furthermore, the device provided by the utility model is simple in construction, stable in operation, available in automatic detection maintenance of automatic control part, simple and convenient in operation and liable to be compatible with other automatic control systems.
Description
Technical field
The utility model relates to a kind of vacuum systems field that medium is arranged, especially a kind of device that prevents the vacuum systems suck-back.
Background technique
Present vacuum systems especially has the vacuum systems of medium, all exists the system airflow direction to change, and causes medium sucting reaction system or other production systems; Even if perhaps be provided with the assemblies such as float valve, check valve, but often precision not or air displacement can't accurately realize preventing the function of suck-back when low.Thereby in the fields such as chemical industry or drying produced, its vacuum systems just existed cancel closedown to threaten production, has certain security risk, quality risk.
The model utility content
Technical problem to be solved in the utility model has provided a kind of simple in structure, device that accurately and timely prevents the vacuum systems suck-back that reliability is high.
The technological scheme that the utility model solves the problems of the technologies described above is as follows: a kind of device that prevents the vacuum systems suck-back, comprise vaccum pump motor, be arranged on motor control switch, the control system PLC module of contactor on the vaccum pump motor and this vaccum pump motor and cut off vacuum line mechanism, described control system PLC module is connected with motor control switch with described contactor respectively, and this control system PLC module links to each other with described cut-out vacuum line system.
Described cut-out vacuum line mechanism comprises solenoid valve and pneumatic valve, and described solenoid valve and pneumatic valve are separately positioned on the vacuum line; Described control system PLC module links to each other with pneumatic valve with this solenoid valve respectively.
Further, described vacuum line is provided with gas pressure transmitter in the compressed gas source position, and described control system PLC module links to each other with this gas pressure transmitter; This device also is provided with process control machine and alarm system, and described control system PLC module links to each other with this process control machine, and is linked to each other with alarm system by this process control machine.
Further again, described alarm system comprises language alarm and audible-visual annunciator, and described process control machine links to each other with audible-visual annunciator with described language alarm respectively.
The beneficial effects of the utility model are:
1. utilize the utility model to solve vacuum systems suck-back problem, controllable rate is high, the suction that can effectively stop any medium;
2. construction of the present utility model is simple, stable, has the self check of automatic control part to safeguard, and is easy and simple to handle, practical, is easy to other automatic control systems compatible.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is alarm system schematic representation of the present utility model;
Fig. 3 is vacuum system schematic representation of the present utility model.
In the accompanying drawings, the component list of each mark representative is as follows:
1. operating table module, 101. process control machines, 2. control system PLC module, 201. control system PLC, 3. electric machine control system module, 301. contactors, 302. motor control switch, 4. alarm system module, 5. atmospheric pressure transmitter, 6. solenoid valve, 7. pneumatic valve, 8. reactor, 9. vacuum pump, 10. storage tank.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
As shown in Figure 1, a kind of device that prevents the vacuum systems suck-back comprises operating table module 1, control system PLC module 2, electric machine control system module 3, alarm system module 4 and vacuum system.As shown in Figure 3, vacuum system is provided with vacuum pump 9, storage tank 10, solenoid valve 6, pneumatic valve 7 and reactor 8, under the effect of vacuum pump 9, pressurized air passes through pneumatic valve 7 and solenoid valve 6 successively from reactor 8, pass through again vacuum pump 9, the storage tank 10 of flowing through, the medium such as storage of water in the holding vessel 10.
Be provided with PLC201 in the control system PLC module 2, comprise in the electric machine control system module 3 and be located at contactor 301 and motor control switch 302 on the vaccum pump motor, KM in the accompanying drawing 1 represents contactor 301, K represents motor control switch 302, PLC201 determines the running state of vaccum pump motor by the state that reads contactor 301, the state of the motor control switch 302 that reads by contrast simultaneously determines jointly whether vaccum pump motor works.If not normal operation, then output signal is opened the employed solenoid valve 6 of corresponding drive compression gas, and then closes pneumatic valve 7, cuts off vacuum line and prevents suck-back.Simultaneously PLC201 can read the on off state of the pressure signal of the source of the gas that sends on the atmospheric pressure transmitter 5 that is arranged on the vacuum line and solenoid valve 6, pneumatic valve 7, determine whether this vacuum systems works, last PLC201 sends information to the process control machine 101 (IPC) in the operating table module 1.This process control machine 101 can read the information that PLC201 sends, and by analyzing the abnormal condition of vacuum systems, arrives operation site and night shift room by the different warning message of alarm system module 4 outputs.
As shown in Figure 2, PLC201 also can also have self-checking function in start and running, and after the self check, PLC201 passes to process control machine 101 with self-test signal, and process control machine 101 is analyzed this self-test signal, such as abnormal running, just warns by alarm system module 4.Described alarm system is provided with language alarm and/or audible-visual annunciator.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. device that prevents the vacuum systems suck-back, comprise vaccum pump motor, be arranged on contactor on the vaccum pump motor and the motor control switch of this vaccum pump motor, it is characterized in that, also comprise the control system PLC module and cut off vacuum line mechanism, described control system PLC module is connected with motor control switch with described contactor respectively, and this control system PLC module links to each other with described cut-out vacuum line system.
2. the device that prevents the vacuum systems suck-back according to claim 1 is characterized in that, described cut-out vacuum line mechanism comprises solenoid valve and pneumatic valve, and described solenoid valve and pneumatic valve are separately positioned on the vacuum line; Described control system PLC module links to each other with pneumatic valve with this solenoid valve respectively.
3. the device that prevents the vacuum systems suck-back according to claim 2 is characterized in that, described vacuum line is provided with gas pressure transmitter in the compressed gas source position, and described control system PLC module links to each other with this gas pressure transmitter; This device also is provided with process control machine and alarm system, and described control system PLC module links to each other with this process control machine, and is linked to each other with alarm system by this process control machine.
4. the device that prevents the vacuum systems suck-back according to claim 3 is characterized in that, described alarm system comprises language alarm and audible-visual annunciator, and described process control machine links to each other with audible-visual annunciator with described language alarm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363943 CN202659479U (en) | 2012-07-25 | 2012-07-25 | Device for preventing suck back of vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220363943 CN202659479U (en) | 2012-07-25 | 2012-07-25 | Device for preventing suck back of vacuum system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659479U true CN202659479U (en) | 2013-01-09 |
Family
ID=47454388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220363943 Withdrawn - After Issue CN202659479U (en) | 2012-07-25 | 2012-07-25 | Device for preventing suck back of vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423140A (en) * | 2012-07-25 | 2013-12-04 | 烟台万润精细化工股份有限公司 | Method and device for preventing suck-back of vacuum system |
| CN109342451A (en) * | 2018-11-16 | 2019-02-15 | 罗博特科智能科技股份有限公司 | A kind of positive and negative AOI detection system |
| CN109984617A (en) * | 2018-01-02 | 2019-07-09 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and its control method |
-
2012
- 2012-07-25 CN CN 201220363943 patent/CN202659479U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423140A (en) * | 2012-07-25 | 2013-12-04 | 烟台万润精细化工股份有限公司 | Method and device for preventing suck-back of vacuum system |
| CN109984617A (en) * | 2018-01-02 | 2019-07-09 | 佛山市顺德区美的电热电器制造有限公司 | Cooking apparatus and its control method |
| CN109342451A (en) * | 2018-11-16 | 2019-02-15 | 罗博特科智能科技股份有限公司 | A kind of positive and negative AOI detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY CONSERVATION VALIANT CO., LTD. Free format text: FORMER NAME: |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 264006 Shandong city of Yantai Province Economic and Technological Development Zone Wuzhi Mountain Road No. 11 Patentee after: In energy-conservation ten thousand profit limited-liability company Address before: 264006 Shandong city of Yantai Province Economic and Technological Development Zone Wuzhi Mountain Road No. 11 Patentee before: :YANTAI VALIANT FINE CHEMICALS Co., LTD. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130109 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |