CN213332711U - Dual-electromagnetic-valve fault monitoring and maintenance gas circuit system - Google Patents
Dual-electromagnetic-valve fault monitoring and maintenance gas circuit system Download PDFInfo
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- CN213332711U CN213332711U CN202022371693.9U CN202022371693U CN213332711U CN 213332711 U CN213332711 U CN 213332711U CN 202022371693 U CN202022371693 U CN 202022371693U CN 213332711 U CN213332711 U CN 213332711U
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Abstract
The utility model discloses a two solenoid valve fault monitoring and maintenance gas circuit system, including the two solenoid valves of series-parallel connection, two five-way reversing valve, or door type shuttle valve, manometer, flowmeter, two five-way reversing valves locate on the pipeline between air supply and the two solenoid valves of series-parallel connection, or door type shuttle valve locates on the pipeline between the two solenoid valves of series-parallel connection and pneumatic valve, connect the pipeline between two five-way reversing valve and or the door type shuttle valve; the pressure gauge and the flowmeter are arranged on a series connection pipeline of the series-parallel double electromagnetic valves. The utility model discloses a design makes on the equipment can't in time discover and get rid of from the fault point of outward appearance discernment, can accomplish maintenance under the condition of incessant equipment moreover, so can show to reduce because the parking that trouble or maintenance lead to brought a large amount of economic losses.
Description
Technical Field
The utility model relates to a solenoid valve gas circuit technical field, concretely relates to two solenoid valve fault monitoring and maintenance gas circuit system.
Background
For pneumatic valves which are used for controlling key processes in chemical devices or related to safe operation of the devices, double electromagnetic valves can be arranged to improve the reliability and safety of the actions of the pneumatic valves. But at present, the problems of mechanical failure or air passage blockage and the like of the electromagnetic valve are difficult to judge and monitor directly from the appearance. Since pneumatic valves with dual solenoid valves are all critical valves in the device, on-line maintenance is especially necessary without stopping the whole or part of the unit. Therefore, the design of an optimized gas circuit design which can visually judge the fault and realize online maintenance is of great importance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two solenoid valve fault monitoring and maintenance gas circuit system to solve the not enough of prior art.
The utility model adopts the following technical scheme:
a double-electromagnetic-valve fault monitoring and gas circuit maintenance system comprises series-parallel double electromagnetic valves, a two-position five-way reversing valve, or a gate type shuttle valve, a pressure gauge and a flow meter, wherein the two-position five-way reversing valve is arranged on a pipeline between a gas source and the series-parallel double electromagnetic valves, or the gate type shuttle valve is arranged on a pipeline between the series-parallel double electromagnetic valves and a pneumatic valve, and a pipeline is connected between the two-position five-way reversing valve and/or the gate type shuttle valve; the pressure gauge and the flowmeter are arranged on a series connection pipeline of the series-parallel double electromagnetic valves.
Further, the two-position five-way reversing valve is a two-position five-way manual reversing valve.
Further, the series-parallel double electromagnetic valves are both two-position three-way electromagnetic valves.
The utility model has the advantages that:
the utility model realizes the functions of fault detection and on-line maintenance of the gas circuit of the double solenoid valves by improving the gas circuit design of the double solenoid valves; a two-position five-way reversing valve is arranged on the instrument gas main gas path to play a role of a bypass electromagnetic valve in maintenance; an OR gate type shuttle valve is arranged, the flow direction of a gas path is automatically adjusted by pressure, and the OR gate type shuttle valve is used for bypassing an electromagnetic valve during maintenance; a pressure gauge and a flowmeter are arranged in the series-parallel double electromagnetic valves to monitor the pressure and flow state of the gas circuit. The utility model discloses a design makes on the equipment can't in time discover and get rid of from the fault point of outward appearance discernment, can accomplish maintenance under the condition of incessant equipment moreover, so can show to reduce because the parking that trouble or maintenance lead to brought a large amount of economic losses.
Drawings
Fig. 1 is the structure diagram of the gas circuit system of the present invention.
FIG. 2 is a schematic diagram of the air circuit when the solenoid valves S1 and S2 are energized normally.
FIG. 3 is a schematic diagram of the circuit when the solenoid valve is energized S1 works normally and S2 fails.
FIG. 4 is a schematic diagram of the circuit when the solenoid valve is energized and S2 works normally and S1 fails.
Fig. 5 is a schematic diagram of the air path during maintenance of the solenoid valve.
Detailed Description
The invention is further explained below with reference to examples and figures. The following examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.
A double-solenoid valve fault monitoring and maintenance gas circuit system is shown in figure 1 and comprises a solenoid valve S1, a solenoid valve S2, a two-position five-way reversing valve VI, an OR gate type shuttle valve C1, a pressure gauge PI and a flow meter FI. Solenoid valve S1 and solenoid valve S2 are both two-position three-way solenoid valves. The solenoid valve S1 and the solenoid valve S2 are connected in series and parallel, and are specifically connected as shown in FIG. 1 to form a series-parallel double solenoid valve. The two-position five-way reversing valve VI is a two-position five-way manual reversing valve. And the two-position five-way reversing valve VI is arranged on a pipeline between the air source and the series-parallel double electromagnetic valves. The or gate type shuttle valve C1 is provided on the line between the series-parallel dual electromagnetic valve and the pneumatic valve. And a pipeline is connected between the two-position five-way reversing valve VI and the gate type shuttle valve C1. The pressure gauge PI and the flow meter FI are arranged on a series connection pipeline of the series-parallel double electromagnetic valves.
When the two solenoid valves S1 and S2 lose power at the same time and the pneumatic valve needs to act, the solenoid valves are powered on, and the instrument gas circuit is connected. As shown in fig. 2, if the solenoid valve S1 and the solenoid valve S2 both work normally, the pressure gauge PI detects the gauge pressure, but the flow rate of the flowmeter FI is 0. As shown in FIG. 3, if the solenoid valve S1 is working properly and the solenoid valve S2 is malfunctioning, the pressure gauge PI will measure the gauge pressure and the flow meter FI will measure the flow. As shown in fig. 4, if the solenoid valve S1 is out of order, the pressure gauge PI pressure is 0 and the flow meter FI flow rate is 0 in the case where the solenoid valve S2 is operating normally. If both solenoid valves S1, S2 fail, the pneumatic valve is reset. When the instrument gas passes through the solenoid valve, the or gate shuttle valve C1 is kept at the position of connecting the upper gas path by the air pressure.
As shown in fig. 5, once it is detected that any one of the solenoid valves has a fault and needs to be replaced online, the solenoid valve is de-energized, the two-position five-way reversing valve VI is manually switched, so that the instrument gas is switched to the gas path which does not pass through the solenoid valve, and thus the or gate type shuttle valve C1 is kept at the position where the lower gas path is connected under the action of the lower gas pressure. This serves as a bypass solenoid valve S1, S2, allowing for replacement of a solenoid valve that detects a failure or for purging a blocked gas path.
After the gas circuit is maintained, the two-position five-way reversing valve VI needs to be manually adjusted back to the gas circuit of the electromagnetic valve, so that the electromagnetic valve can work normally.
Claims (3)
1. A double-electromagnetic-valve fault monitoring and maintenance gas circuit system is characterized by comprising a series-parallel double-electromagnetic valve, a two-position five-way reversing valve, a gate type shuttle valve, a pressure gauge and a flow meter, wherein the two-position five-way reversing valve is arranged on a pipeline between a gas source and the series-parallel double-electromagnetic valve, or the gate type shuttle valve is arranged on a pipeline between the series-parallel double-electromagnetic valve and a pneumatic valve, and a pipeline is connected between the two-position five-way reversing valve and the gate type shuttle valve; the pressure gauge and the flowmeter are arranged on a series connection pipeline of the series-parallel double electromagnetic valves.
2. The dual-solenoid valve fault monitoring and maintenance gas circuit system of claim 1, wherein the two-position five-way reversing valve is a two-position five-way manual reversing valve.
3. The dual-electromagnetic-valve fault monitoring and maintenance gas circuit system according to claim 1 or 2, wherein the series-parallel dual electromagnetic valves are both two-position three-way electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371693.9U CN213332711U (en) | 2020-10-22 | 2020-10-22 | Dual-electromagnetic-valve fault monitoring and maintenance gas circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022371693.9U CN213332711U (en) | 2020-10-22 | 2020-10-22 | Dual-electromagnetic-valve fault monitoring and maintenance gas circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213332711U true CN213332711U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022371693.9U Active CN213332711U (en) | 2020-10-22 | 2020-10-22 | Dual-electromagnetic-valve fault monitoring and maintenance gas circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213332711U (en) |
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2020
- 2020-10-22 CN CN202022371693.9U patent/CN213332711U/en active Active
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