CN111578148A - Pneumatic system leakage alarming and detecting system and method - Google Patents
Pneumatic system leakage alarming and detecting system and method Download PDFInfo
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- CN111578148A CN111578148A CN202010404081.7A CN202010404081A CN111578148A CN 111578148 A CN111578148 A CN 111578148A CN 202010404081 A CN202010404081 A CN 202010404081A CN 111578148 A CN111578148 A CN 111578148A
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- gas
- light intensity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/02—Mobile apparatus, e.g. watering-vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a pneumatic system leakage alarm and detection system and a method, wherein the system comprises: the device comprises a main gas supply switching branch and a gas coloring device, wherein a plurality of gas dyeing media with set colors are arranged in the gas coloring device; the pressure alarm switch is connected with the pneumatic system and used for sending an alarm signal when the pressure of the pneumatic system is lower than a preset value; the light intensity sensor is used for detecting and outputting a current ambient light intensity signal; and the electric control system is respectively connected with the main gas supply switching branch, the gas coloring device, the pressure alarm switch and the light intensity sensor circuit, and is used for closing the main gas supply switching branch when receiving the alarm signal and controlling the gas coloring device to dye the gas into corresponding colors according to the current ambient light intensity signal output by the light intensity sensor. The invention enables the detection personnel to quickly and accurately identify the leakage and judge the leakage point, and has the advantages of simplicity, high efficiency, time saving, labor saving, high efficiency, simple structure, high automation degree, safety and reliability.
Description
Technical Field
The invention relates to the field of air leakage detection, in particular to a pneumatic system leakage alarming and detecting system and method.
Background
At present, a large number of engineering vehicles such as cleaning vehicles and washing and sweeping vehicles use pneumatic systems to control the on-off of low-pressure water paths and high-pressure water paths, and then control the water spraying and the injection of the whole vehicle water paths. Compared with a common hydraulic system, the pneumatic system has the advantages of no pollution, low cost, convenience in installation and the like.
The conventional pneumatic system consists of an air source, a safety valve (manual air valve), a filter, an electromagnetic air valve group and an air cylinder. The medium used in the pneumatic system is high pressure air from the chassis.
When the leakage occurs in the pneumatic system, obvious stains and oil liquid are not easy to exist like hydraulic oil leakage in a hydraulic system, the air leakage can be found only by listening to the sound of the air leakage or touching water on the hand to feel the air of the air leakage, the efficiency is low, the place with high air leakage can be found only, the place with low air leakage needs to be smeared with soap liquid or put an execution cylinder in water to look over bubbles to find air leakage points, the detection process is very inconvenient, and the finding efficiency is low.
Disclosure of Invention
The invention provides a pneumatic system leakage alarm and detection system, aiming at solving the technical problems that the existing pneumatic system has low leakage detection efficiency, is inconvenient to operate and is easily influenced by the light intensity of the environment.
The technical scheme adopted by the invention is as follows:
a pneumatic system leak alarm and detection system comprising:
the main gas supply switching branch and the gas coloring device are arranged among the auxiliary gas tank, the filter and the pressure reducing valve in parallel, and a plurality of gas dyeing media with set colors are arranged in the gas coloring device;
the pressure alarm switch is connected with the pneumatic system and used for sending an alarm signal when the pressure of the pneumatic system is lower than a preset value;
the light intensity sensor is used for detecting and outputting a current ambient light intensity signal;
the electric control system is respectively connected with the main gas supply switching branch, the gas coloring device, the pressure alarm switch and the light intensity sensor circuit, and is used for closing the main gas supply switching branch when receiving the alarm signal of the pressure alarm switch and controlling the gas coloring device to dye the gas into corresponding colors according to the current ambient light intensity signal output by the light intensity sensor.
Furthermore, the main air supply switching branch comprises a first electromagnetic directional valve which is connected with the electric control system through a circuit and is used for cutting off or conducting the main air supply switching branch according to an instruction of the electric control system.
Further, the gas coloring device comprises a first gas coloring switching branch and a second gas coloring switching branch which are arranged in parallel,
the first gas coloring switching branch comprises a second electromagnetic reversing valve and a second color tank which are connected, and the second electromagnetic reversing valve is in circuit connection with the electric control system and used for cutting off or conducting the first gas coloring switching branch according to the instruction of the electric control system;
the second gas coloring switching branch comprises a third electromagnetic reversing valve and a first color tank which are connected, wherein the third electromagnetic reversing valve is connected with the electric control system through a circuit and used for stopping or conducting according to an instruction of the electric control system.
Furthermore, a first color aerosol is filled in the first color tank, and a second color aerosol is filled in the second color tank.
Further, gaseous device of coloring includes compound colour jar, fourth electromagnetic directional valve, be provided with the first colour chamber and the second colour chamber of mutual isolation in the compound colour jar, the input in first colour chamber and second colour chamber respectively with two delivery outlets of fourth electromagnetic directional valve are linked together, the output in first colour chamber and second colour chamber is collected the back and is connected with filter and relief pressure valve, fourth electromagnetic directional valve with electrical system circuit connection is used for the basis electrical system's instruction control gas flows into the pneumatic system downstream through first colour chamber or second colour chamber.
Furthermore, a first color aerosol is filled in the first color cavity, and a second color aerosol is filled in the second color cavity.
Further, the first color aerosol is a white aerosol and the second color aerosol is a red aerosol.
Furthermore, the output ends of the first color cavity and the second color cavity are respectively provided with a first one-way valve and a second one-way valve for preventing aerosol in the two color cavities from mixing.
According to another aspect of the present invention, there is also provided a pneumatic system leak alarm and detection method, comprising the steps of:
when the pressure of the pneumatic system is lower than a preset value, the pressure alarm switch sends an alarm signal;
when the electric control system receives the alarm signal, the main gas supply switching branch is closed, and the gas coloring device is controlled to dye gas into corresponding color according to the current ambient light intensity signal output by the light intensity sensor.
Further, the current ambient light intensity signal according to the output of light intensity inductor control gaseous device of coloring of dying into corresponding colour with gas specifically includes:
when the current ambient light intensity signal output by the light intensity sensor is higher than a set threshold value, the electric control system controls the gas coloring device to dye the gas into red; when the current ambient light intensity signal output by the light intensity sensor is lower than a set threshold value, the electric control system controls the gas coloring device to dye the gas into white.
The invention has the following beneficial effects:
the pneumatic system leakage alarming and detecting system provided by the invention is provided with the main air supply switching branch, the air coloring device, the pressure alarming switch, the light intensity sensor and the electric control system, the pressure alarming switch is used for reminding a vehicle user of the state of an upper air circuit, when a large amount of air leakage occurs in the working or driving process of the whole vehicle, the safety valve between the upper air circuit and a chassis is automatically closed by the electric control system, the driving safety of the vehicle is ensured, meanwhile, the air can be colored into different and striking colors according to the current ambient light intensity, so that the air leakage point detection is conveniently converted from the original low-efficiency method of listening to a hand touch into a simple and efficient method which can be identified at one glance, the time and the labor are saved, the efficiency is high, the influence of ambient light is avoided, the structure is simple, the automation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a pneumatic system leak alarm and detection system in accordance with a preferred embodiment of the present invention; and
fig. 2 is a schematic structural view of a gas coloring device according to another preferred embodiment of the present invention.
In the figure:
1. an auxiliary gas tank; 2. a first electromagnetic directional valve; 3. a second electromagnetic directional valve; 4. a third electromagnetic directional valve; 5. a first color can; 6. a second color can; 7. filters and pressure relief valves; 8. a pressure alarm switch; 9. an electronic control system; 10. a light intensity sensor; 11. a fourth electromagnetic directional valve; 12. a composite color tank; 121. a first color cavity; 122. a first check valve; 123. a second one-way valve; 124. a second color cavity.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to FIG. 1, a preferred embodiment of the present invention provides a pneumatic system leak alarm and detection system comprising:
the main gas supply switching branch and the gas coloring device are arranged among the auxiliary gas tank 1, the filter and the pressure reducing valve 7 in parallel, and a plurality of gas dyeing media with set colors are arranged in the gas coloring device;
the pressure alarm switch 8 is connected with the pneumatic system and used for sending an alarm signal when the pressure of the pneumatic system is lower than a preset value;
the light intensity sensor 10 is used for detecting and outputting a current ambient light intensity signal;
electrical system 9, respectively with main air feed switches branch road, gaseous device, pressure alarm switch 8, light intensity inductor 10 circuit connection of coloring, is used for receiving during pressure alarm switch 8's alarm signal, closes main air feed and switches the branch road to current environment light intensity signal control according to light intensity inductor 10 output gaseous device of coloring dyes into corresponding colour with gas.
The pneumatic system leakage warning and detecting system that this embodiment provided is provided with main air feed and switches the branch road, gaseous device of coloring, pressure alarm switch 8, light intensity inductor 10 and electrical system 9, this embodiment utilizes pressure alarm switch 8 to remind the state of vehicle user facial make-up gas circuit, when whole car work or when going in-process and take place a large amount of gas leakage, utilize electrical system 9 self-closing facial make-up and chassis between main air feed switch branch road, guarantee vehicle safety of traveling, simultaneously, this embodiment can dye gas into more striking colour under current ambient light intensity according to current ambient light intensity, make things convenient for inspector to discern, thereby be convenient for change the gas leakage point detection into the succinct efficient method that just can discern at one's eye from original low efficiency method of listening sound hand touch, time saving and labor saving, high efficiency, and is not influenced by ambient light.
Specifically, in a preferred embodiment of the present invention, the main gas supply switching branch includes a first electromagnetic directional valve 2 electrically connected to the electronic control system 9, and is configured to turn off or turn on the main gas supply switching branch according to a command of the electronic control system 9, the first electromagnetic directional valve 2 in this embodiment is a normally-closed two-position two-way electromagnetic directional valve, when a gas pressure value of the gas pressure system is at a normal value, the electronic control system 9 controls the first electromagnetic directional valve 2 to be powered on, so that the first electromagnetic directional valve 2 is in a conducting state, the main gas supply switching branch is turned on, gas is supplied to each execution component of the gas pressure system through the auxiliary gas tank 1 and the first electromagnetic directional valve 2, when the gas pressure is lower than a preset value due to leakage of the gas pressure system, the electronic control system 9 receives an alarm signal of the pressure alarm switch 8 and sends a command to the first electromagnetic directional valve 2, and controlling the first electromagnetic directional valve 2 to be powered off to enable the first electromagnetic directional valve 2 to be in a cut-off state, so that gas is prevented from continuously leaking, and the running safety of the vehicle is ensured.
In particular, in the preferred embodiment of the present invention, the gas coloring device comprises a first gas coloring switching branch and a second gas coloring switching branch which are arranged in parallel,
the first gas coloring switching branch comprises a second electromagnetic reversing valve 3 and a second color tank 6 which are connected, and the second electromagnetic reversing valve 3 is in circuit connection with the electric control system 9 and is used for cutting off or conducting the first gas coloring switching branch according to the instruction of the electric control system 9;
the second gas coloring switching branch comprises a third electromagnetic directional valve 4 and a first color tank 5 which are connected, wherein the third electromagnetic directional valve 4 is in circuit connection with an electric control system 9 and is used for stopping or conducting according to an instruction of the electric control system 9.
In this embodiment, the gas coloring device includes a first gas coloring switching branch and a second gas coloring switching branch which are connected in parallel, the first gas coloring switching branch and the second gas coloring switching branch can be cut off or switched on according to the instruction of the electric control system 9, because the first gas coloring switching branch and the second gas coloring switching branch are respectively provided with a first color tank 5 and a second color tank 6 which can dye gas into different colors, the first gas coloring switching branch and the second gas coloring switching branch are connected in parallel without mutual interference, only one gas coloring switching branch is in a conducting state at the same time, therefore, the electric control system 9 can select the first gas coloring switching branch or the second gas coloring switching branch to dye gas into different colors according to the current ambient light intensity signal output by the light intensity sensor 10, the color can have a striking visual effect under the corresponding ambient light intensity, and is convenient for detection personnel to identify. In addition, second solenoid directional valve 3 and third solenoid directional valve 4 of this embodiment are two-way solenoid directional valve of closed type, and there is the leakage when the system, electrical system 9 is gone up the electricity according to environmental light intensity signal control second solenoid directional valve 3 or third solenoid directional valve 4, makes first gas color switching branch or second gas color switching branch be in the conducting state, and the gas stream is colored switching branch or is colored switching branch and dye through first gas, and the gas after the dyeing will spill from the leakage department, because gas has been dyed the colour that is fit for current environmental light intensity to make things convenient for the inspector all can quick discernment gaseous leakage position under the environmental light intensity of difference. Of course, it is understood that the gas coloring device may include more gas coloring switching branches connected in parallel, so as to color the gas under different light intensity environments with corresponding colors, and the selected colors can be visually distinguished under the corresponding light intensity.
Specifically, in the preferred embodiment of the present invention, the first color tank 5 is filled with a first color aerosol, the second color tank 6 is filled with a second color aerosol,
in this embodiment, the first color tank 5 and the second color tank 6 are filled with colored aerosols of different colors, and the aerosols can dye gas and do not damage components of the gas pressure system.
Specifically, in a preferred embodiment of the present invention, the first color aerosol is a white aerosol and the second color aerosol is a red aerosol. In the daytime, the light intensity signal is strong, chooses for use red aerosol for gas dyeing, and red can have fine striking visual effect under the ambient light intensity on daytime, and the inspection personnel of being convenient for discerns under the environment on daytime and leaks and judge the leak point. And the light intensity signal is weak when night, chooses white aerosol for gas dyeing, and white can have fine striking visual effect under the ambient light intensity at night, and the inspection personnel of being convenient for discerns under night or the darker environment of light and leaks and judge the leak point. It will be appreciated, of course, that other colored aerosols that are sufficiently striking in different light intensity environments may be selected in practice.
As shown in fig. 2, in another preferred embodiment of the present invention, the gas coloring device includes a composite color tank 12 and a fourth electromagnetic directional valve 11, a first color cavity 121 and a second color cavity 124 that are isolated from each other are disposed in the composite color tank 12, a first color aerosol is filled in the first color cavity 121, and a second color aerosol is filled in the second color cavity 124. The first color aerosol is a white aerosol, and the second color aerosol is a red aerosol.
The input ends of the first color cavity 121 and the second color cavity 124 are respectively communicated with two output ports of the fourth electromagnetic directional valve 11, the output ends of the first color cavity 121 and the second color cavity 124 are converged and then connected with a filter and a pressure reducing valve 7, and the fourth electromagnetic directional valve 11 is in circuit connection with the electric control system 9 and is used for controlling gas to flow into the downstream of the pneumatic system through the first color cavity 121 or the second color cavity 124 according to instructions of the electric control system 9.
The gas coloring device of the embodiment comprises a composite color tank 12 and a fourth electromagnetic directional valve 11, wherein two color cavities, namely a first color cavity 121 and a second color cavity 124, are integrally arranged in the composite color tank 12, white aerosol and red aerosol are respectively arranged in the first color cavity 121 and the second color cavity 124, and the fourth electromagnetic directional valve 11 is a normally-closed three-position five-way electromagnetic valve. The composite color tank 12 and the normally closed three-position five-way electromagnetic gas valve are adopted in the embodiment, so that the structure of the gas coloring device is more compact, and the complexity and the occupied volume of a pipeline are reduced. When the light intensity sensor 10 detects that the current ambient light intensity is stronger, if in daytime, the electric control system 9 controls the fourth electromagnetic directional valve 11 to act to switch the gas flow direction, so that the gas flows through the second color cavity 124 and is dyed into red to enter the downstream of the gas pressure system, and the red color can have a striking visual effect under the ambient light intensity in daytime, so that the detection personnel can rapidly and accurately identify the leakage and judge the leakage point under the environment in daytime. When light intensity inductor 10 detects that current ambient light intensity is less strong, if be in night, electrical system 9 control the gaseous flow direction of fourth electromagnetic directional valve 11 action switching makes gaseous stream pass through first colour chamber 121 and dyes into the low reaches of air pressure system after white, and white can have striking visual effect under the ambient light intensity at night, is convenient for the testing personnel to discern under the environment at night fast accurately and leak and judge the leak point.
In another preferred embodiment of the present invention, the output ends of the first color cavity 121 and the second color cavity 124 are respectively provided with a first check valve 122 and a second check valve 123 for preventing aerosol in the two color cavities from mixing, in this embodiment, by providing the first check valve 122 and the second check valve 123, the main purpose is to prevent colored aerosol from mixing in the use process of the first color cavity 121 and the second color cavity 124, and since the color is changed after mixing, the color is no longer striking under the corresponding ambient light intensity, which may cause negative effects on detecting personnel to quickly and accurately identify leakage and judge the leakage point, and the provision of the check valves may well solve the above problems, and ensure the stability and reliability of the gas dyeing effect.
According to another aspect of the present invention, there is also provided a pneumatic system leak alarm and detection method, comprising the steps of:
when the pressure of the pneumatic system is lower than a preset value, the pressure alarm switch 8 sends an alarm signal;
when receiving the alarm signal, the electric control system 9 closes the main gas supply switching branch, and controls the gas coloring device to dye gas into corresponding color according to the current ambient light intensity signal output by the light intensity sensor 10.
The detection method of this embodiment utilizes pressure alarm switch 8 to remind the state of vehicle user's facial make-up gas circuit, when a large amount of gas leakage takes place in whole car work or the driving process, utilize electric system 9 self-closing to go up the main air feed between dress and the chassis and switch over the branch road, guarantee vehicle driving safety, simultaneously, this embodiment can dye gas into more striking colour under current ambient light intensity according to current ambient light intensity, make things convenient for the inspector to discern, thereby be convenient for change the gas leakage point detection from original low efficiency method of listening sound hand touch into the succinct efficient method that just can discern at one eye, time saving and labor saving, high efficiency, and not influenced by ambient light, can help the inspector to discern the leakage and judge the leakage point fast accurately at different ambient light intensity operating modes.
In another preferred embodiment of the present invention, the controlling the gas coloring device to color the gas into a corresponding color according to the current ambient light intensity signal output by the light intensity sensor 10 specifically includes:
when the current ambient light intensity signal output by the light intensity sensor 10 is higher than a set threshold value, the electric control system 9 controls the gas coloring device to dye the gas into red; when the current ambient light intensity signal output by the light intensity sensor 10 is lower than the set threshold, the electric control system 9 controls the gas coloring device to dye the gas into white.
In this embodiment, for simplifying the detection, only be divided into daytime and two kinds of operating modes at night with ambient light intensity, correspondingly, dye into red and white two kinds with gaseous dyeing function location of the device of coloring, wherein, red more striking easy discernment when daytime, the event is mainly used when the operating mode at daytime, and white more striking easy discernment when night, the event mainly uses when the operating mode at night, above-mentioned setting, the needs of detection have been satisfied, no matter daytime or night can both help the detection personnel to discern the leakage fast accurately and judge the leak point, and simultaneously, the system can also be simplified.
In conclusion, the invention solves the problems of low efficiency and complex operation of the existing air pressure system leakage detection operation, can help detection personnel quickly and accurately identify leakage and judge leakage points under different environmental light intensities, and has the advantages of simple structure, high automation degree, safety and reliability.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A pneumatic system leak alarm and detection system, comprising:
the main gas supply switching branch and the gas coloring device are arranged among the auxiliary gas tank (1), the filter and the pressure reducing valve (7) in parallel, and a plurality of gas dyeing media with set colors are arranged in the gas coloring device;
the pressure alarm switch (8) is connected with the pneumatic system and used for sending an alarm signal when the pressure of the pneumatic system is lower than a preset value;
the light intensity sensor (10) is used for detecting and outputting a current ambient light intensity signal;
electrical system (9), respectively with main air feed switches branch road, gaseous device, pressure alarm switch (8), light intensity inductor (10) circuit connection of coloring, is used for receiving when the alarm signal of pressure alarm switch (8), closes main air feed and switches the branch road to according to the current ambient light intensity signal control of light intensity inductor (10) output gaseous device of coloring dyes into corresponding colour with gas.
2. The pneumatic system leak alarm and detection system of claim 1,
the main gas supply switching branch comprises a first electromagnetic directional valve (2) which is in circuit connection with the electric control system (9) and is used for being cut off or switched on according to an instruction of the electric control system (9).
3. The pneumatic system leak alarm and detection system of claim 1,
the gas coloring device comprises a first gas coloring switching branch and a second gas coloring switching branch which are arranged in parallel,
the first gas coloring switching branch comprises a second electromagnetic reversing valve (3) and a second color tank (6) which are connected, and the second electromagnetic reversing valve (3) is in circuit connection with the electric control system (9) and is used for cutting off or conducting the first gas coloring switching branch according to the instruction of the electric control system (9);
the second gas coloring switching branch comprises a third electromagnetic reversing valve (4) and a first color tank (5) which are connected, wherein the third electromagnetic reversing valve (4) is in circuit connection with the electric control system (9) and is used for stopping or conducting according to an instruction of the electric control system (9) to perform coloring switching on the second gas coloring switching branch.
4. The pneumatic system leak alarm and detection system of claim 3,
first color aerosol is filled in the first color tank (5), and second color aerosol is filled in the second color tank (6).
5. The pneumatic system leak alarm and detection system of claim 1,
gaseous device of coloring includes composite color jar (12), fourth electromagnetic directional valve (11), be provided with first colour chamber (121) and second colour chamber (124) of mutual isolation in composite color jar (12), the input in first colour chamber (121) and second colour chamber (124) respectively with two delivery outlets of fourth electromagnetic directional valve (11) are linked together, the output in first colour chamber (121) and second colour chamber (124) is collected the back and is connected with filter and relief pressure valve (7), fourth electromagnetic directional valve (11) with electrical system (9) circuit connection for according to the instruction control gas of electrical system (9) flows into atmospheric pressure system low reaches through first colour chamber (121) or second colour chamber (124).
6. The pneumatic system leak alarm and detection system of claim 5,
first color aerosol is filled in the first color cavity (121), and second color aerosol is filled in the second color cavity (124).
7. The pneumatic system leak alarm and detection system of claim 4 or 6,
the first color aerosol is a white aerosol, and the second color aerosol is a red aerosol.
8. The pneumatic system leak alarm and detection system of claim 6,
the output ends of the first color cavity (121) and the second color cavity (124) are respectively provided with a first one-way valve (122) and a second one-way valve (123) for preventing aerosol in the two color cavities from mixing.
9. A pneumatic system leakage alarm and detection method is characterized by comprising the following steps:
when the pressure of the pneumatic system is lower than a preset value, the pressure alarm switch (8) sends an alarm signal;
when receiving the alarm signal, the electric control system (9) closes the main gas supply switching branch and controls the gas coloring device to dye gas into corresponding color according to the current ambient light intensity signal output by the light intensity sensor (10).
10. The pneumatic system leak alarm and detection method of claim 9,
the current environment light intensity signal control gas device of coloring according to light intensity inductor (10) output specifically includes with gaseous dyeing into corresponding colour:
when the current ambient light intensity signal output by the light intensity sensor (10) is higher than a set threshold value, the electric control system (9) controls the gas coloring device to dye gas into red; when the current ambient light intensity signal output by the light intensity sensor (10) is lower than a set threshold value, the electric control system (9) controls the gas coloring device to dye the gas into white.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2481868A (en) * | 2010-07-06 | 2012-01-11 | Nicholas Julian Jan Francis Macphail | Boiler fuel supply shut off system |
| CN103712063A (en) * | 2013-12-28 | 2014-04-09 | 上海析维生物医药科技有限公司 | Air feed channel automatic switcher with air channel low-pressure short message warning function |
| CN108150698A (en) * | 2017-12-25 | 2018-06-12 | 中国海洋石油集团有限公司 | Pneumatic diaphragm control valve executing agency diaphragm protection air source circuit |
| CN109654375A (en) * | 2019-01-30 | 2019-04-19 | 中国科学技术大学 | A kind of safe feeding device and its air supply method of high pressure combustibility experimental gas |
| CN109709436A (en) * | 2017-10-25 | 2019-05-03 | 杨清智 | A kind of water body leakage warning system |
-
2020
- 2020-05-13 CN CN202010404081.7A patent/CN111578148B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2481868A (en) * | 2010-07-06 | 2012-01-11 | Nicholas Julian Jan Francis Macphail | Boiler fuel supply shut off system |
| CN103712063A (en) * | 2013-12-28 | 2014-04-09 | 上海析维生物医药科技有限公司 | Air feed channel automatic switcher with air channel low-pressure short message warning function |
| CN109709436A (en) * | 2017-10-25 | 2019-05-03 | 杨清智 | A kind of water body leakage warning system |
| CN108150698A (en) * | 2017-12-25 | 2018-06-12 | 中国海洋石油集团有限公司 | Pneumatic diaphragm control valve executing agency diaphragm protection air source circuit |
| CN109654375A (en) * | 2019-01-30 | 2019-04-19 | 中国科学技术大学 | A kind of safe feeding device and its air supply method of high pressure combustibility experimental gas |
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