CN220611584U - Positive pressure purging protection device for industrial control instrument - Google Patents
Positive pressure purging protection device for industrial control instrument Download PDFInfo
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- CN220611584U CN220611584U CN202322121433.XU CN202322121433U CN220611584U CN 220611584 U CN220611584 U CN 220611584U CN 202322121433 U CN202322121433 U CN 202322121433U CN 220611584 U CN220611584 U CN 220611584U
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- intake pipe
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- tube side
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- 238000010926 purge Methods 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 230000006978 adaptation Effects 0.000 description 9
- 239000002699 waste material Substances 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a positive pressure purging protection device for an industrial control instrument, and belongs to the field of protection devices for instruments. Including the intake pipe and set up manual switch module, filtration pressure regulating module, electromagnetic control module and flow detection module on the intake pipe tube side, the one end connection air supply other end of intake pipe extends to the instrument and is used for blowing gas to the instrument surface and forms malleation, manual switch module is used for manual control intake pipe's switching including setting up the air supply hand valve on the intake pipe tube side, filtration pressure regulating module is including setting gradually filter on the intake pipe tube side, air relief pressure valve and manometer, electromagnetic control module is used for the switching of electrical control intake pipe including setting up the air supply electromagnetic control valve on the intake pipe tube side, flow detection module is used for detecting the gas flow of intake pipe including the gas flow switch that sets up on the intake pipe tube side, gas flow switch and air supply electromagnetic control valve signal connection.
Description
Technical Field
The utility model relates to a protection device for industrial instruments and meters, in particular to a protection device for positive pressure purging of instruments and meters.
Background
Industrial control instruments are widely applied to industrial automation, can automatically finish the work of measurement, recording and control under the condition of unmanned operation, and are eyes and feelers of industrial automation, so the accuracy and precision of the industrial automation are of great importance. In industrial production, especially metallurgical enterprises and mining industry, some working conditions are extremely bad, the working environment of an industrial control instrument is extremely bad, the service life of the industrial control instrument is greatly reduced, and the body is easy to damage; in addition, for some meters of non-contact measurement technology, such as infrared temperature sensors, radar level gauges and the like, related equipment is mainly detected through a non-contact probe or a mirror surface, and under the environment of spraying a large amount of dust, steam or grease, the probe or the mirror surface of the meter is extremely easy to pollute and block, so that measurement data is inaccurate, and jump and stop of the related equipment or a production line are easily caused.
For example, in the application of the infrared temperature sensor in detecting the temperature of the ball mill big gear, a large amount of viscous grease exists in the air due to the big gear dry oil injection system, for example, the mirror surface of the infrared temperature sensor is not subjected to purging protection, so that the mirror surface is extremely easy to adhere to the viscous grease, and the ball mill is stopped or the ball mill big gear is damaged due to inaccurate detection temperature. During use, the critical industrial instrument is usually purged, but at present, a simple single hand valve is generally adopted, so that the purging condition cannot be detected and fed back, manual operation is needed, the air pressure cannot be regulated, human interference factors exist, and instrument faults or air source waste are easily caused.
Disclosure of Invention
The utility model provides the positive pressure purging protection device for the industrial control instrument aiming at the prior art, so that the industrial control instrument to be protected is in a positive pressure purging state, the service life of the industrial control instrument and the maintenance period of a probe in a severe environment are prolonged, the detection accuracy of the industrial control instrument is ensured, the device does not need manual operation, and the labor and the waste of air sources caused by improper operation of workers are saved.
The utility model solves the problems by adopting the following technical scheme: the utility model provides an industrial control instrument malleation sweeps protection device, includes intake pipe and manual switch module, filtration pressure regulating module, electromagnetic control module and the flow detection module of setting on the intake pipe tube side, the one end connection air supply other end of intake pipe extends to the instrument and is used for forming malleation protection to the instrument surface blowing gas, and manual switch module is used for manual control intake pipe's switching including setting up air supply hand valve on the intake pipe tube side, filtration pressure regulating module is including setting gradually filter, air relief pressure valve and the manometer on the intake pipe tube side, electromagnetic control module is used for the switching of electrical control intake pipe including setting up air supply electromagnetic control valve on the intake pipe tube side, flow detection module is used for detecting the gas flow of intake pipe including setting up the gas flow switch on the intake pipe tube side, gas flow switch with air supply electromagnetic control valve signal connection. And controlling the air source electromagnetic control valve to open and close or regulate the flow of the air inlet pipe according to the gas flow detected by the gas flow switch.
As one of the preferred modes of the present application, the manual switch module further includes an air source hand valve position sensor for detecting a switch position of the air source hand valve, and a safety lock hanging device provided on the air source hand valve. The safety lock hanging device has the advantages that the gas source hand valve position detection device can detect the opening and closing states of the feedback valve, and the safety lock hanging device can hang the safety lock, so that the padlock isolation is carried out on the gas source during overhauling of the device or an industrial control instrument, and the overhauling safety is ensured.
As one of the preferred modes of the present application, the utility model further comprises an instrument adaptation module, the instrument adaptation module comprises a joint and an air inlet pipe, one side of the joint is connected with the instrument to form an air chamber with one closed side and one open side, the air inlet pipe is communicated with the air chamber, the air inlet pipe is used for connecting the air inlet pipe, air enters the air chamber from the air inlet pipe and is blown out from the opening, and positive pressure is formed in the air chamber. The air inlet pipe is connected with the air inlet pipe through the air inlet pipe, compressed air (purge gas) enters the air chamber to form positive pressure on the surface of the instrument, so that the industrial control instrument is prevented from being polluted by workshop environment, and the industrial control instrument is protected.
As one of the preferred modes of the application, the manual switch module, the filtering pressure regulating module, the electromagnetic control module and the flow detection module are arranged inside the control box, and the control box plays a role in protecting each module.
Compared with the prior art, the utility model has the advantages that:
the manual switch module is arranged, so that the opening and closing of the air inlet pipe can be manually adjusted.
The filter pressure regulating module is arranged, so that water vapor in the air source can be filtered, the air source pressure in the air inlet pipe can be regulated according to the actual working condition, the waste of the air source is reduced, and meanwhile, the positive pressure purging protection of the industrial instrument can be effectively realized.
The electromagnetic control module is arranged to realize the electrical control of opening and closing the air inlet pipe, for example, the remote automatic control can be carried out through PLC input and output communication, and the remote automatic control can be used for integrating the device of the application into the sequential control of a production line, so that more accurate start and stop control is realized, and the energy waste and labor are reduced.
The intelligent control instrument positive pressure purging protection device has the beneficial effects that by detecting the flow of the air source in the air inlet pipe, the fault alarming or the interlocking skip stopping function can be realized, and the reliability of the intelligent control instrument positive pressure purging protection device is improved.
Drawings
FIG. 1 is a schematic diagram of a positive pressure purging protection device for an industrial control instrument according to an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of an adaptation module of an instrument in an embodiment of the present utility model;
in the figure, 100 manual switch modules, 200 filtration pressure regulating modules, 300 electromagnetic control modules, 400 flow detection modules, 500 instrument adaptation modules, 600 instruments, 7 air inlet pipes, 8 control cabinets, 201 filters, 202 air pressure reducing valves, 203 pressure gauges, 501 joints and 502 air inlet connecting pipes.
Detailed Description
The present utility model is described in further detail below with reference to the accompanying drawings, which are exemplary and intended to be illustrative of the utility model and not to be construed as limiting the utility model. The text description in the embodiment corresponds to the drawings, the description related to the orientation is also based on the drawings, and the description is not to be construed as limiting the protection scope of the utility model.
As shown in fig. 1, this embodiment relates to an industrial control instrument positive pressure purging protection device, which comprises an air inlet pipe 7, a manual switch module 100, a filtering pressure regulating module 200, an electromagnetic control module 300, a flow detection module 400, an instrument adaptation module 500 and a control cabinet 8, wherein the manual switch module 100, the filtering pressure regulating module 200, the electromagnetic control module 300 and the flow detection module 400 are sequentially arranged on the tube side of the air inlet pipe 7 and are arranged inside the control cabinet 8. One end of the air inlet pipe 7 is connected with an air source (compressed air), the other end of the air inlet pipe is connected to the instrument adaptation module 500, the instrument adaptation module 500 is connected with the instrument 600, and the compressed air is conveyed to the surface of the instrument 600 through the air inlet pipe to carry out positive pressure purging.
The manual switch module 100 comprises an air source hand valve, a hand valve position sensor (not shown in the figure) and a safety lock hanging device (not shown in the figure), and is used for manually opening or closing a compressed air source, wherein the hand valve position sensor is arranged on the air source hand valve and is used for detecting the valve opening and closing position of the air source hand valve, and the safety lock hanging device is also arranged on the air source hand valve and can hang a safety lock, so that padlock isolation is carried out on the air source when the device or an industrial control instrument is overhauled, and the overhauling safety is ensured.
The back end of the manual switch module 100 is provided with a filtering pressure regulating module 200, the internal structure of the filtering pressure regulating module 200 comprises a filter 201, an air pressure reducing valve 202 and a pressure gauge 203, the three elements are connected in a pipeline way in sequence, the filtering pressure regulating module 200 can filter water vapor in compressed air and regulate the pressure of the purged compressed air according to actual requirements, and positive pressure purging protection can be better carried out on industrial instruments and waste of air sources is reduced.
The electromagnetic control module 300 is an air source electromagnetic control valve arranged on the tube side of the air inlet tube 7 and used for electrically controlling the opening and closing of the air inlet tube 7, so as to realize remote control of the opening and closing of the air inlet tube.
The flow detection module 400 is a gas flow switch arranged on the tube side of the air inlet tube 7 and used for detecting the compressed air flow of the air inlet tube 7, the gas flow switch is connected with the air source electromagnetic control valve through signals and is mutually interlocked, the device fault alarm or interlocking jump stop function can be realized, and the reliability of the positive pressure purging protection device of the industrial control instrument is improved.
The instrument adaptation module 500 is an instrument accessory, and is tightly installed with an industrial control instrument through the instrument accessory, the instrument adaptation module comprises a connector 501 and an air inlet connecting pipe 502, the connector 501 is sleeve-shaped, one end is provided with threads and connected with the instrument, the other end is open to form a positive pressure air chamber, the air inlet connecting pipe 502 is communicated with the positive pressure air chamber, the air inlet connecting pipe 502 is used for connecting an air inlet pipe 7, compressed air is blown into the positive pressure air chamber by the air inlet pipe 4 to form positive pressure atmosphere, and the compressed air is blown out from an opening at the lower end to prevent the instrument from being polluted by grease mist entering, and inaccurate measurement and even damage are caused.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (4)
1. The utility model provides an industrial control instrument malleation sweeps protection device which characterized in that: including intake pipe (7) and manual switch module (100), filtration pressure regulating module (200), electromagnetic control module (300) and flow detection module (400) of setting on the intake pipe tube side, the one end connection air supply other end of intake pipe extends to the instrument and is used for forming positive pressure protection to the instrument surface blowing gas, manual switch module (100) are used for the switching of manual control intake pipe including the air supply hand valve that sets up on the intake pipe tube side, filtration pressure regulating module (200) are including setting gradually filter (201), air relief pressure valve (202) and manometer (203) on the intake pipe tube side, electromagnetic control module (300) are used for the switching of electrical control intake pipe including the air supply electromagnetic control valve that sets up on the intake pipe tube side, flow detection module (400) are used for detecting the gas flow of intake pipe including the gas flow switch that sets up on the intake pipe tube side, gas flow switch with air supply electromagnetic control valve signal connection.
2. The industrial control instrument positive pressure purge protection device according to claim 1, wherein: the manual switch module (100) further comprises an air source hand valve position sensor and a safety lock hanging device, wherein the air source hand valve position sensor is used for detecting the switch position of the air source hand valve, and the safety lock hanging device is arranged on the air source hand valve.
3. The industrial control instrument positive pressure purge protection device according to claim 1, wherein: the device comprises a meter adapting module, and is characterized by further comprising a connector and an air inlet connecting pipe, wherein one side of the connector is connected with the meter, the other side of the connector is open to form an air chamber with one closed side, the air inlet connecting pipe is communicated with the air chamber, the air inlet connecting pipe is used for connecting the air inlet pipe, air enters the air chamber from the air inlet connecting pipe and is blown out from the opening, and positive pressure is formed in the air chamber.
4. The industrial control instrument positive pressure purge protection device according to claim 1, wherein: the manual switch module (100), the filtering voltage regulating module (200), the electromagnetic control module (300) and the flow detection module (400) are arranged in the control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322121433.XU CN220611584U (en) | 2023-08-08 | 2023-08-08 | Positive pressure purging protection device for industrial control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322121433.XU CN220611584U (en) | 2023-08-08 | 2023-08-08 | Positive pressure purging protection device for industrial control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220611584U true CN220611584U (en) | 2024-03-19 |
Family
ID=90222633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322121433.XU Active CN220611584U (en) | 2023-08-08 | 2023-08-08 | Positive pressure purging protection device for industrial control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220611584U (en) |
-
2023
- 2023-08-08 CN CN202322121433.XU patent/CN220611584U/en active Active
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