CN220584590U - Controllable output device that adjusts of precision - Google Patents
Controllable output device that adjusts of precision Download PDFInfo
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- CN220584590U CN220584590U CN202420278865.3U CN202420278865U CN220584590U CN 220584590 U CN220584590 U CN 220584590U CN 202420278865 U CN202420278865 U CN 202420278865U CN 220584590 U CN220584590 U CN 220584590U
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Abstract
The utility model discloses an accuracy controllable regulating output device which comprises a high-pressure control module, a low-pressure control module I and a low-pressure control module II, wherein the high-pressure control module, the low-pressure control module I and the low-pressure control module II are respectively arranged on a shell, the high-pressure control module comprises a deflation electromagnetic valve II, a pressure sensor II and a high-frequency valve II, a control circuit of the deflation electromagnetic valve II is connected with a control circuit of the high-frequency valve II through a PWM control board K2, a high-pressure output interface is arranged on a pipeline connected between an inlet of the deflation electromagnetic valve II and an outlet of the high-frequency valve II, the device is mainly divided into three paths, one path is a high-pressure pipeline, the other path is a low-pressure pipeline, the two paths are pressure-collecting pipelines, the pressure is fed back to the PWM control board through the pressure sensor, and the PWM control board gradually approximates the pressure value of a tested piece to the set value through regulating the switching frequency of the high-frequency valve, so that the closed-loop control of the gas pressure in the tested piece is realized.
Description
Technical Field
The utility model relates to the technical field of output adjustment of pressure controllers, in particular to an output device capable of controlling and adjusting precision.
Background
The pressure controller is mainly a pressure control product, and plays a role in timely controlling the pressure and controlling the start-stop state of equipment in industry, agriculture and modern life, and the market of the pressure controller is gradually flooded due to the increasing of domestic industry, so that the conditions of civil use and industrial use are mixed.
Whether civil or industrial requirements for the pressure controller are that the performance is stable and the control precision is high, the problem that the pressure precision is uncontrollable and the pressure output is unstable is common in the market at present; and when being tested for pressure experiments, the device can be divided into a high-pressure test and a low-pressure test, and the corresponding high-pressure controller and low-pressure controller are needed to be adopted respectively, so that the investment of equipment is increased, the operation is inconvenient, and the pressure controller cannot meet the requirements in actual use, so that the device for accurately controlling and regulating the output is provided to solve the problems.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides an accuracy controllable regulating output device which is mainly divided into three paths, wherein one path is a high-pressure gas path, the other path is a low-pressure gas path, the pressure is collected through a pressure sensor and fed back to a PWM control panel, the PWM control panel gradually approaches the requirement of a set value through regulating the switching frequency of a high-frequency valve, so that the closed-loop control of the gas pressure in a tested piece is realized, the system control accuracy is high, and the problems in the background technology can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a controllable output device of regulation of precision, including high pressure control module, low pressure control module I and low pressure control module II, high pressure control module, low pressure control module I and low pressure control module II are installed on the casing respectively, high pressure control module includes gassing solenoid valve II, pressure sensor II and high frequency valve II, be connected through PWM control panel K2 between the control line of gassing solenoid valve II and the control line of high frequency valve II, be provided with high pressure output interface on the pipeline of being connected between the import of gassing solenoid valve II and the export of high frequency valve II, be provided with pressure sensor II on the pipeline where high pressure output interface locates, the export of gassing solenoid valve II is provided with pressure relief mouth II, low pressure control module I includes gassing solenoid valve I and high frequency valve I, be provided with low pressure output interface I on the pipeline of being connected between the export of gassing solenoid valve I, low pressure control module II includes gassing solenoid valve III and high frequency valve III, be provided with low pressure output interface II on the pipeline of being connected between the export of gassing solenoid valve III and the export, low pressure input interface I and high frequency valve I's low pressure input interface through II.
Further, the control circuit of the deflation electromagnetic valve I is connected with the control circuit of the high-frequency valve I through a PWM control board K1, a pressure sensor I is arranged on the pipeline where the low-pressure output interface I is located, and a pressure relief opening I is arranged at the outlet of the deflation electromagnetic valve I.
Further, a control circuit of the deflation electromagnetic valve III is connected with a control circuit of the high-frequency valve III through a PWM control board K3, a pressure sensor III is arranged on a pipeline where the low-pressure output interface II is located, and a pressure relief opening III is arranged at an outlet of the deflation electromagnetic valve III.
Further, a pressure gauge, a filter, a stop valve and a pressure pump are sequentially connected in series on a pipeline communicated with the low-pressure input interface I of the high-frequency valve I and the low-pressure input interface II of the high-frequency valve III.
Further, a high-pressure input interface and a ground inflation connector are arranged on the inlet of the high-frequency valve II, the ground inflation connector is communicated with the inlet of the high-frequency valve II through a one-way valve, and the high-pressure input interface pipeline is sequentially connected with the one-way valve, the pressure gauge, the filter, the stop valve, the gas cylinder and the inflation valve in series.
Compared with the prior art, the utility model has the beneficial effects that:
the device is mainly divided into three paths, one path is a high-pressure gas path, the other path is a low-pressure gas path, pressure is collected through a pressure sensor and fed back to the PWM control board, and the PWM control board enables the pressure value of a tested piece to gradually approach the requirement of a set value through adjusting the switching frequency of the high-frequency valve, so that closed-loop control of the pressure of the gas in the tested piece is realized, the precision is controllable, and the system is high in control precision.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is an electrical schematic of the present utility model.
In the figure: 1 a shell, 2 a pressure sensor III, 3 a low-pressure output interface II, 4 a deflation electromagnetic valve III, 5 a pressure relief port III, 6 a high-pressure output interface, 7 a deflation electromagnetic valve II, 8 a low-pressure output interface I, 9 a pressure relief port II, 10 a deflation electromagnetic valve I, 11 a pressure relief port I, 12 a pressure sensor II, 13 a pressure sensor I, 14 a high-frequency valve I, 15 a high-frequency valve II, 16 a low-pressure input interface I, 17 a high-pressure input interface, 18 a ground inflation joint, 19 a high-frequency valve III and 20 a low-pressure input interface II.
Detailed Description
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a controllable regulation output device of precision, including high pressure control module, low pressure control module I and low pressure control module II, high pressure control module, low pressure control module I and low pressure control module II are installed on casing 1 respectively, high pressure control module includes gassing solenoid valve II 7, pressure sensor II 12 and high frequency valve II 15, be connected through PWM control panel K2 between the control line of gassing solenoid valve II 7 and the control line of high frequency valve II 15, be provided with high pressure output interface 6 on the pipeline of being connected between the import of gassing solenoid valve II 7 and the export of high frequency valve II 15, be provided with pressure sensor II 12 on the pipeline where high pressure output interface 6 is located, the export of gassing solenoid valve II 7 is provided with pressure release mouth II 9, the high frequency valve that is used is high performance electromagnetic valve, PWM control unit is the PCB board of the high operational capacity with PID control function, the system is characterized in that the pressure collected by a high-pressure section pressure sensor II 12 is fed back to a PWM control panel K2, the PWM control panel K2 enables the pressure value of a tested piece to gradually approach to the set value by adjusting the switching frequency of a high-frequency valve II 15, thereby realizing closed-loop control of the pressure of gas in the tested piece, the low-pressure control module I comprises a deflation electromagnetic valve I10 and a high-frequency valve I14, a low-pressure output interface I8 is arranged on a pipeline connected between the inlet of the deflation electromagnetic valve I10 and the outlet of the high-frequency valve I14, the low-pressure control module II comprises a deflation electromagnetic valve III 4 and a high-frequency valve III 19, a low-pressure output interface II 3 is arranged on a pipeline connected between the inlet of the deflation electromagnetic valve III 4 and the outlet of the high-frequency valve III 19, and the low-pressure input interface I16 of the high-frequency valve I14 is communicated with the low-pressure input interface II 20 of the high-frequency valve III 19 through a pipeline, and the deflation electromagnetic valve I10, the bleed solenoid valve II 7 and the bleed solenoid valve III 4 control and balance the pressures in the high pressure section and the low pressure section systems, respectively.
The control circuit of the deflation electromagnetic valve I10 is connected with the control circuit of the high-frequency valve I14 through a PWM control board K1, a pressure sensor I13 is arranged on the pipeline where the low-pressure output interface I8 is located, a pressure relief opening I11 is arranged at the outlet of the deflation electromagnetic valve I10, the pressure control of the low-pressure control module I is fed back to the PWM control board K1 according to the pressure collected by the pressure sensor I13, and the PWM control board K1 gradually approaches the requirement of a set value by the pressure value of the test piece through adjusting the switching frequency of the high-frequency valve I14, so that closed-loop control of the gas pressure in the test piece is realized.
The control circuit of the deflation electromagnetic valve III 4 is connected with the control circuit of the high-frequency valve III 19 through a PWM control board K3, a pressure sensor III 2 is arranged on the pipeline where the low-pressure output interface II 3 is located, a pressure relief opening III 5 is arranged at the outlet of the deflation electromagnetic valve III 4, the pressure control of the low-pressure control module II is fed back to the PWM control board K3 according to the collected pressure of the pressure sensor III 2, and the PWM control board K3 enables the pressure value of a tested piece to gradually approach the requirement of a set value through adjusting the switching frequency of the high-frequency valve III 19, so that closed-loop control of the gas pressure in the tested piece is realized.
The pipeline communicated with the low-pressure input interface I16 of the high-frequency valve I14 and the low-pressure input interface II 20 of the high-frequency valve III 19 is sequentially connected with a pressure gauge, a filter, a stop valve and a pressure pump in series.
The inlet of the high-frequency valve II 15 is provided with a high-pressure input interface 17 and a ground inflation connector 18, the ground inflation connector 18 is communicated with the inlet of the high-frequency valve II 15 through a one-way valve, and the pipeline of the high-pressure input interface 17 is sequentially connected with the one-way valve, the pressure gauge, the filter, the stop valve, the gas cylinder and the inflation valve in series.
The device is provided with a standard gas cylinder, wherein the gas cylinder is a 15MPa nitrogen cylinder, a nitrogen charging vehicle and a pressure pump, and is connected with a high-pressure output interface 6, a low-pressure output interface I8 and a low-pressure output interface II 3 through the device after being filtered; the vacuum pump can vacuumize the tested piece to form a negative pressure environment.
The shell 1 is internally provided with a power supply module, an interface module, a main control module, an AD acquisition module, an isolation module and a driving module; and a power supply module: different power supplies are mainly provided for a CPU, an AD chip, an RS232/RS485, a Mos tube and other integrated circuits; an interface module: the electromagnetic valve mainly comprises an electromagnetic valve output interface, a digital quantity analog quantity/input interface and a communication DB9 interface; and the main control module: the operation processing of the digital signals is mainly completed; AD acquisition module: converting the displacement signal into a direct current signal to form voltage feedback closed-loop control; isolation module: isolating the CPU drive output signal from the electromagnetic valve; and a driving module: the negative electrode of the electromagnetic valve is driven by a MOSFET to realize the switching of the electromagnetic valve.
While the basic principles of the utility model have been shown and described, there are various changes and modifications to the utility model, which fall within the scope of the utility model as hereinafter claimed, without departing from the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a controllable output device that adjusts of precision, includes high pressure control module, low pressure control module I and low pressure control module II, its characterized in that: the high-pressure control module, low-pressure control module I and low-pressure control module II are installed on casing (1) respectively, high-pressure control module includes gassing solenoid valve II (7), pressure sensor II (12) and high-frequency valve II (15), be connected through PWM control panel K2 between the control line of gassing solenoid valve II (7) and the control line of high-frequency valve II (15), be provided with high-pressure output interface (6) on the pipeline of being connected between the import of gassing solenoid valve II (7) and the export of high-frequency valve II (15), be provided with pressure sensor II (12) on the pipeline where high-pressure output interface (6) is located, the export of gassing solenoid valve II (7) is provided with pressure release mouth II (9), low-pressure control module I includes gassing solenoid valve I (10) and high-frequency valve I (14), be provided with low-pressure output interface I (8) on the pipeline of being connected between the import of gassing solenoid valve I (10) and the export of high-frequency valve II (15), low-pressure control module II includes gassing solenoid valve III (4) and high-frequency valve III (19), be provided with low-pressure output interface I (19) on the pipeline of gassing solenoid valve III (4) and high-frequency valve II (19) and high-frequency valve I (16) are connected through low-pressure output interface (16) high-pressure input interface (16).
2. A precision controllable adjustment output device as claimed in claim 1, wherein: the control circuit of the air release solenoid valve I (10) is connected with the control circuit of the high-frequency valve I (14) through a PWM control board K1, a pressure sensor I (13) is arranged on a pipeline where the low-pressure output interface I (8) is arranged, and a pressure release opening I (11) is arranged at an outlet of the air release solenoid valve I (10).
3. A precision controllable adjustment output device as claimed in claim 1, wherein: the control circuit of the air release solenoid valve III (4) is connected with the control circuit of the high-frequency valve III (19) through a PWM control board K3, a pressure sensor III (2) is arranged on a pipeline where the low-pressure output interface II (3) is arranged, and a pressure release opening III (5) is arranged at an outlet of the air release solenoid valve III (4).
4. A precision controllable adjustment output device as claimed in claim 1, wherein: the pipeline communicated with the low-pressure input interface I (16) of the high-frequency valve I (14) and the low-pressure input interface II (20) of the high-frequency valve III (19) is sequentially connected with a pressure gauge, a filter, a stop valve and a pressure pump in series.
5. A precision controllable adjustment output device as claimed in claim 1, wherein: the high-frequency valve II (15) is provided with a high-pressure input interface (17) and a ground inflation connector (18), the ground inflation connector (18) is communicated with the inlet of the high-frequency valve II (15) through a one-way valve, and a one-way valve, a pressure gauge, a filter, a stop valve, a gas cylinder and an inflation valve are sequentially connected in series on a pipeline of the high-pressure input interface (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420278865.3U CN220584590U (en) | 2024-02-05 | 2024-02-05 | Controllable output device that adjusts of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420278865.3U CN220584590U (en) | 2024-02-05 | 2024-02-05 | Controllable output device that adjusts of precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220584590U true CN220584590U (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420278865.3U Active CN220584590U (en) | 2024-02-05 | 2024-02-05 | Controllable output device that adjusts of precision |
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| Country | Link |
|---|---|
| CN (1) | CN220584590U (en) |
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- 2024-02-05 CN CN202420278865.3U patent/CN220584590U/en active Active
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