CN217846951U - High-pressure nitrogen control system - Google Patents
High-pressure nitrogen control system Download PDFInfo
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- CN217846951U CN217846951U CN202221061691.2U CN202221061691U CN217846951U CN 217846951 U CN217846951 U CN 217846951U CN 202221061691 U CN202221061691 U CN 202221061691U CN 217846951 U CN217846951 U CN 217846951U
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Abstract
The utility model discloses a high-pressure nitrogen control system, which relates to the technical field of high-pressure gas, and the key points of the technical proposal of the high-pressure nitrogen control system comprise a plurality of pressure control boxes which are connected in sequence and step by step, wherein each pressure control box is provided with a plurality of stop valves and is connected with a PLC (programmable logic controller), and the PLC is connected with a control screen; an electronic pressure regulating controller which is used for being connected with each other to provide a low-pressure driving air source is arranged between every two adjacent pressure control boxes; the pressure control box is a high-pressure control box, a medium-pressure control box and a low-pressure control box which are sequentially connected, the high-pressure control box is connected with an air inlet port to be filled with high-pressure gas, and a manual stop valve K1 used for opening and closing the air inlet port is arranged. The utility model discloses a realize two kinds of modes of automatic air feed of remote control and on-the-spot manual control air feed in order to show the purpose that promotes the security for this high-pressure nitrogen gas control system has the effect that is showing the reduction control degree of difficulty and promotes high-pressure gas safety in utilization.
Description
Technical Field
The utility model relates to a high-pressure gas technical field, more specifically say that it relates to a high-pressure nitrogen gas control system.
Background
In the actual operation process of industrial plants and laboratories, a large-flow and high-pressure gas supply device is often needed so as to facilitate the processing production of products and the stable operation of experiments.
In prior art, because the industrial factory building and the laboratory but the in-process of in-service use air feed, need not keep lasting high-pressure operating pressure, and large-traffic and highly compressed gas will bring great potential safety hazard to will cause great incident when leaking, possess the degree of difficulty of maintaining and controlling, thereby realize high-pressure gas's control through the adoption people supply closely to open and close the control valve, possess certain potential safety hazard, await improvement.
Disclosure of Invention
Not enough to prior art exists, the utility model aims to provide a high-pressure nitrogen gas control system, this high-pressure nitrogen gas control system have show the effect that reduces the control degree of difficulty and promote high-pressure gas safety in utilization.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a high-pressure nitrogen control system comprises a plurality of pressure control boxes which are sequentially connected and gradually reduce pressure, wherein each pressure control box is provided with a plurality of stop valves and is connected with a PLC (programmable logic controller), and the PLC is connected with a control screen; an electronic pressure regulating controller which is used for being connected with each other to provide a low-pressure driving air source is arranged between every two adjacent pressure control boxes; the pressure control box is a high-pressure control box, a medium-pressure control box and a low-pressure control box which are sequentially connected, the high-pressure control box is connected with an air inlet port to be filled with high-pressure gas, and a manual stop valve K1 used for opening and closing the air inlet port is arranged.
Through adopting above-mentioned technical scheme, adopt display screen display parameter and PLC cooperation control to realize two kinds of modes of automatic air feed of remote control and on-the-spot manual control air feed, and realize showing the purpose that promotes the security by long-range decompression and sectional type decompression, make this high-pressure nitrogen gas control system have showing the effect that reduces the control degree of difficulty and promote high-pressure gas safety in utilization.
The utility model discloses further set up to: the air inlet port with filter G1 has established ties between the manual stop valve K1, and be provided with pressure gauge valve KB1 between filter G1 and the manual stop valve K1, pressure gauge valve KB1 be connected with be used for showing the manometer P1 of inlet pressure and with PLC is connected and is used for showing the pressure transmitter B1 of inlet pressure on PLC.
The utility model discloses further set up to: manual stop valve K1 with it has manual stop valve K2 to establish ties between the high pressure accuse case, manual stop valve K2 connects in parallel has the solenoid valve D1 that is used for control to realize the air feed or cut off the gas.
The utility model discloses further set up to: the high-pressure control box is respectively connected with a stop valve K3, a stop valve K4, a stop valve K5, a stop valve K6, a stop valve K7, a stop valve K10, a stop valve K11, a safety valve A1 and a pressure gauge valve KB2; the pressure gauge valve KB2 is connected with a pressure gauge P2 for displaying the pressure of the gas collecting pipe and a pressure transmitter B2 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valve K3 is connected with a silencer U1 and used for air release, the stop valve K4 is sequentially connected with an electromagnetic valve D2 and a stop valve K8, the outlet end of the stop valve K8 is connected with the silencer U1, and the electromagnetic valve D2 is connected with the PLC; the stop valve K5 is used for sampling after being opened; the stop valve K6 is connected with a filter G2 and used for supplying air; the stop valve K7 is sequentially connected with an electromagnetic valve D3 and a filter G3 and used for supplying air, and the electromagnetic valve D3 is connected with a stop valve K9 in series; the stop valve K10 and the stop valve K11 are connected with the electronic pressure regulating controller and used for feeding air to the medium-pressure control box.
The utility model discloses further set up to: the medium-pressure control box is respectively connected with a stop valve K13, a stop valve K14, a stop valve K15, a stop valve K16, a stop valve K17, a stop valve K18, a stop valve K19, a stop valve K20, a stop valve K21, a safety valve A4 and a pressure gauge valve KB5; the pressure gauge valve KB5 is connected with a pressure gauge P5 for displaying the pressure of the gas collecting pipe and a pressure transmitter B5 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valves K13 and K14 are matched and connected with the corresponding electronic pressure regulating controllers to be connected with the high-pressure control box; the stop valve K15 and the stop valve K16 are matched and connected with the corresponding electronic pressure regulating controller to feed air to the low-pressure control box; the stop valve K17 is connected with a filter G4 and used for supplying air; the stop valve K18 is sequentially connected with an electromagnetic valve D4 and a filter G5 and used for supplying air, and the electromagnetic valve D4 is connected with a stop valve K22 in series; the stop valve K20 is connected with a silencer U2 and used for air release, the stop valve K19 is sequentially connected with an electromagnetic valve D5 and a stop valve K23, the outlet end of the stop valve K23 is connected with the silencer U2, and the electromagnetic valve D5 is connected with the PLC; the stop valve K21 is used for sampling after being opened.
The utility model discloses further set up to: the low-pressure control tank is respectively connected with a stop valve K24, a stop valve K25, a stop valve K26, a stop valve K27, a stop valve K28, a stop valve K29, a stop valve K30, a safety valve A7 and a pressure gauge valve KB8; the pressure gauge valve KB8 is connected with a pressure gauge P8 for displaying the pressure of the gas collecting pipe and a pressure transmitter B8 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valve K24 and the stop valve K25 are matched and connected with the corresponding electronic pressure regulating controller to be connected with the high-pressure control box; the stop valve K26 is connected with a filter G6 and used for supplying air; the stop valve K27 is sequentially connected with an electromagnetic valve D6 and a filter G7 for supplying air, and the electromagnetic valve D6 is connected with a stop valve K31 in series; the stop valve K29 is connected with a silencer U3 and used for air release, the stop valve K28 is sequentially connected with an electromagnetic valve D7 and a stop valve K32, the outlet end of the stop valve K32 is connected with the silencer U3, and the electromagnetic valve D7 is connected with the PLC; the stop valve K30 is used for sampling after being opened.
The utility model discloses further set up to: the electronic voltage regulation controller comprises a voltage regulation controller J1, a voltage regulation controller J2, a voltage regulation controller J3 and a voltage regulation controller J4; the pressure regulating controller J1 and the pressure regulating controller J2 are used for connecting the high-pressure control box and the medium-pressure control box; the pressure regulating controller J3 and the pressure regulating controller J4 are used for connecting the high-pressure low-pressure control box and the medium-pressure control box; and the pressure regulating controller J1, the pressure regulating controller J2, the pressure regulating controller J3 and the pressure regulating controller J4 are all connected with a driver port, and a stop valve K12 is arranged at the outlet end of the driver port.
The utility model discloses further set up to: the air inlet end of the pressure regulating controller J1 is connected with the high-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A2 and a pressure gauge valve KB3; the pressure gauge valve KB3 is connected with a pressure gauge P3 for displaying the pressure of the gas collecting pipe and a pressure transmitter B3 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB3 is connected with the medium-pressure control box; the air inlet end of the pressure regulating controller J2 is connected with the high-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A3 and a pressure gauge valve KB4; the pressure gauge valve KB4 is connected with a pressure gauge P4 used for displaying the pressure of the gas collecting pipe and a pressure transmitter B4 connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB4 is connected with the medium-pressure control tank; the air inlet end of the pressure regulating controller J3 is connected with the medium-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A6 and a pressure gauge valve KB7; the pressure gauge valve KB7 is connected with a pressure gauge P7 for displaying the pressure of the gas collecting pipe and a pressure transmitter B7 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB7 is connected with the low-pressure control tank; the air inlet end of the pressure regulating controller J4 is connected with the medium-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A5 and a pressure gauge valve KB6; the pressure gauge valve KB6 is connected with a pressure gauge P6 for displaying the pressure of the gas collecting pipe and a pressure transmitter B6 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; and the air outlet end of the pressure gauge valve KB6 is connected with the low-pressure control box.
To sum up, the utility model discloses following beneficial effect has: through adopting display screen display parameter and PLC cooperation control to realize two kinds of modes of automatic air feed of remote control and on-the-spot manual control air feed, and realize showing the purpose that promotes the security by remote decompression and sectional type decompression, make this high-pressure nitrogen gas control system have showing the effect that reduces the control degree of difficulty and promote high-pressure gas safety in utilization.
Drawings
Fig. 1 is an electrical control schematic diagram of the present embodiment.
Detailed Description
In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, a high-pressure nitrogen control system includes a plurality of pressure control boxes connected in sequence and gradually depressurized. Every pressure control case all is provided with a plurality of stop valves and is connected with PLC, and PLC is connected with the control screen. It should be mentioned that an electronic pressure regulating controller is arranged between two adjacent pressure control boxes for mutual connection to provide a low-pressure driving air source. The pressure control box is a high-pressure control box, a medium-pressure control box and a low-pressure control box which are connected in sequence, the high-pressure control box is connected with an air inlet port to be filled with high-pressure gas, and a manual stop valve K1 used for opening and closing the air inlet port is arranged. In the embodiment, the high-pressure control box is a 25-35 MPa pressure control box; the medium pressure control box is a pressure control box of 5-16 MPa; the low-pressure control box is a 0-1 MPa pressure control box so as to clearly explain the use case of the embodiment. Of course, when the high pressure gas falls within the corresponding high pressure range, the medium pressure gas falls within the corresponding medium pressure range, and the low pressure gas falls within the corresponding low pressure range, the definitions of high pressure, medium pressure, and low pressure in the present embodiment are all included.
As shown in fig. 1, a filter G1 is connected in series between the intake port and the manual cut-off valve K1, and a pressure gauge valve KB1 is provided between the filter G1 and the manual cut-off valve K1. The pressure gauge valve KB1 is connected to a pressure gauge P1 for displaying the intake pressure and a pressure transmitter B1 connected to the PLC for displaying the intake pressure on the PLC. Meanwhile, a manual stop valve K2 is connected in series between the manual stop valve K1 and the high-pressure control box, and the manual stop valve K2 is connected in parallel with an electromagnetic valve D1 for controlling gas supply or gas cut-off.
Wherein, high pressure accuse case is connected with stop valve K3, stop valve K4, stop valve K5, stop valve K6, stop valve K7, stop valve K10, stop valve K11, relief valve A1 and manometer valve KB2 respectively. The pressure gauge valve KB2 is connected with a pressure gauge P2 for displaying the pressure of the gas collecting pipe and a pressure transmitter B2 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. Stop valve K3 is connected with muffler U1 and is used for the gassing, and stop valve K4 has connected gradually solenoid valve D2 and stop valve K8, and wherein stop valve K8's exit end is connected with muffler U1, and solenoid valve D2 is connected with PLC. The stop valve K5 is used for sampling after being opened. The shut-off valve K6 is connected with a filter G2 and is used for air supply. Stop valve K7 has connected gradually solenoid valve D3 and filter G3 and is used for the air feed, and solenoid valve D3 establishes ties has stop valve K9. The cut-off valves K10 and K11 are connected with an electronic pressure regulating controller and used for feeding air to the medium-pressure control box.
It should be noted that the electronic voltage regulation controller includes a voltage regulation controller J1, a voltage regulation controller J2, a voltage regulation controller J3, and a voltage regulation controller J4. The pressure regulating controller J1 and the pressure regulating controller J2 are used for connecting a high-pressure control box and a medium-pressure control box, and the pressure regulating controller J3 and the pressure regulating controller J4 are used for connecting a high-pressure low-pressure control box and a medium-pressure control box. And the pressure regulating controller J1, the pressure regulating controller J2, the pressure regulating controller J3 and the pressure regulating controller J4 are all connected with a driver port, and a stop valve K12 is arranged at the outlet end of the driver port.
Meanwhile, the medium-pressure control tank is respectively connected with a stop valve K13, a stop valve K14, a stop valve K15, a stop valve K16, a stop valve K17, a stop valve K18, a stop valve K19, a stop valve K20, a stop valve K21, a safety valve A4 and a pressure gauge valve KB5. The pressure gauge valve KB5 is connected with a pressure gauge P5 for displaying the pressure of the gas collecting pipe and a pressure transmitter B5 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. The cut-off valves K15 and K16 are matched and connected with corresponding electronic pressure regulating controllers to feed air to the low-pressure control box. The cutoff valve K17 is connected with a filter G4 and used for air supply. The stop valve K18 is sequentially connected with an electromagnetic valve D4 and a filter G5 and used for air supply, and the electromagnetic valve D4 is connected with a stop valve K22 in series. Stop valve K20 is connected with muffler U2 and is used for the gassing, and stop valve K19 connects gradually solenoid valve D5 and stop valve K23. The outlet end of the stop valve K23 is connected with the silencer U2, and the electromagnetic valve D5 is connected with the PLC. The cut-off valve K21 is used for sampling after being opened.
The air inlet end of the pressure regulating controller J1 is connected with a stop valve K10 and a driver port of the high-pressure control box, and the air outlet end is sequentially connected with a safety valve A2 and a pressure gauge valve KB3. The pressure gauge valve KB3 is connected with a pressure gauge P3 for displaying the pressure of the gas collecting pipe and a pressure transmitter B3 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. The air outlet end of the pressure gauge valve KB3 is connected with a stop valve K13 of the medium-pressure control box. The air inlet end of the pressure regulating controller J2 is connected with a stop valve K12 and a driver port of the high-pressure control box, and the air outlet end is sequentially connected with a safety valve A3 and a pressure gauge valve KB4. The pressure gauge valve KB4 is connected with a pressure gauge P4 used for displaying the pressure of the gas collecting pipe and a pressure transmitter B4 connected with the PLC and used for displaying the air inlet pressure on the PLC, and the air outlet end of the pressure gauge valve KB4 is connected with a stop valve K14 of the medium-pressure control box.
As shown in fig. 1, the low-pressure control tank is connected with a cut-off valve K24, a cut-off valve K25, a cut-off valve K26, a cut-off valve K27, a cut-off valve K28, a cut-off valve K29, a cut-off valve K30, a safety valve A7, and a pressure gauge valve KB8, respectively. The pressure gauge valve KB8 is connected with a pressure gauge P8 for displaying the pressure of the gas collecting pipe and a pressure transmitter B8 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. A filter G6 is connected to the shut-off valve K26 and used for air supply. The stop valve K27 is sequentially connected with an electromagnetic valve D6 and a filter G7 and used for air supply, and the electromagnetic valve D6 is connected with a stop valve K31 in series. The stop valve K29 is connected with a silencer U3 and used for air release, and the stop valve K28 is sequentially connected with an electromagnetic valve D7 and a stop valve K32. Wherein, stop valve K32's exit end is connected with muffler U3, and solenoid valve D7 is connected with PLC. The cut-off valve K30 is used for sampling after being opened.
It should be noted that the air inlet end of the pressure regulating controller J3 is connected to the stop valve K16 and the driver port of the medium pressure control tank, and the air outlet end is sequentially connected to the safety valve A6 and the pressure gauge valve KB7. The pressure gauge valve KB7 is connected with a pressure gauge P7 for displaying the pressure of the gas collecting pipe and a pressure transmitter B7 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. The air outlet end of the pressure gauge valve KB7 is connected with a stop valve K24 of the low-pressure control box. The air inlet end of the pressure regulating controller J4 is connected with the stop valve K15 and the driver port of the medium-pressure control box, and the air outlet end is sequentially connected with a safety valve A5 and a pressure gauge valve KB6. The pressure gauge valve KB6 is connected with a pressure gauge P6 for displaying the pressure of the gas collecting pipe and a pressure transmitter B6 which is connected with the PLC and used for displaying the air inlet pressure on the PLC. The air outlet end of the pressure gauge valve KB6 is connected with a stop valve K25 of the low-pressure control box.
When the pressure control device is used, the air inlet port of the embodiment fills 25-35 MPa of nitrogen into the 25-35 MPa pressure control box, the nitrogen is filtered by the filter G1 while being filled, the pressure gauge valve KB1 is opened, the pressure gauge P1 displays the air inlet pressure on site, the pressure transmitter B1 displays the air inlet pressure on the PLC, and after the inlet pressure is met, the manual stop valve K1 is opened or the electromagnetic valve D1 is opened under the control of the PLC, so that air supply is realized.
When the pressure gauge valve KB2 is opened, the pressure gauge P2 displays the pressure of the gas collecting pipe on site, the pressure transmitter B2 displays the pressure of the gas collecting pipe on the PLC, and after the pressure in the gas collecting pipe exceeds 1.05 times of the design pressure, the safety valve A1 can automatically exhaust gas, so that potential safety hazards caused by overhigh pressure in the gas collecting pipe are prevented.
Meanwhile, the nitrogen in the gas collecting pipe can be sampled and analyzed by opening the manual stop valve K5, and the manual stop valve K5 is closed after the analysis is finished; opening a manual stop valve K6, supplying air at a high pressure of 25-35 MPa through a filter G2, and closing the stop valve K6 after air supply is finished; opening a manual stop valve K7, then opening the manual stop valve K9 or controlling an electromagnetic valve D3 through a PLC, then realizing 25-35 MPa high-pressure air supply through a filter G3, and closing the manual stop valve K9 or the electromagnetic valve D3 after the air supply is finished;
after the air feed is accomplished, open manual stop valve K3 or open manual stop valve K4, open solenoid valve D2 through PLC, open manual stop valve K8 again, realize the gaseous evacuation in the discharge, sound when muffler U1 reduces to get rid of gas to satisfy the environmental requirement.
When the driving gas port supplies gas, the manual stop valve K12 is opened to provide 0.8MPa driving gas, and a driving gas source is provided for the pressure regulating controller J1, the pressure regulating controller J2, the pressure regulating controller J3 and the pressure regulating controller J4.
It should be mentioned that, by opening the manual stop valve K10, the adjusted pressure is set on the PLC, the rear end pressure is fed back to the electronic pressure controller through the pressure adjusting controller J1, the pressure adjusting controller automatically adjusts the pressure to 5-16 MPa from 25-35 MPa, and then the pressure gauge valve KB3 is opened, the adjusted pressure is displayed on site through the pressure gauge P3 and displayed on the PLC through the pressure transmitter B3, the safety valve A2 can automatically exhaust to ensure that the adjusted pressure is 1.05 times lower than the design pressure, and the stop valve K13 is opened to provide the nitrogen after pressure reduction;
opening a manual stop valve K11, setting the regulated pressure on a PLC, feeding back the rear end pressure to an electronic pressure controller through a pressure regulating controller J2 electron, automatically regulating the pressure by the pressure regulating controller J2, regulating the pressure from 25-35 MPa to 5-16 MPa, opening a pressure gauge valve KB4, displaying the regulated pressure through a pressure gauge P4 field and displaying the regulated pressure on the PLC through a pressure transmitter B4, automatically exhausting air by a safety valve A3 to ensure that the regulated pressure is 1.05 times lower than the designed pressure, opening a stop valve K14, and providing the decompressed nitrogen;
further, a pressure gauge valve KB5 is opened, a pressure gauge P5 displays the pressure of the gas collecting pipe on site, a pressure transmitter B5 displays the pressure of the gas collecting pipe on a PLC, and when the pressure in the gas collecting pipe exceeds 1.05 times of the designed pressure, a safety valve A4 can automatically exhaust gas to prevent potential safety hazards caused by overhigh pressure in the gas collecting pipe; opening the manual stop valve K21, sampling and analyzing the nitrogen in the gas collecting pipe, and closing the manual stop valve K21 after analysis; opening a manual stop valve K17, supplying gas at a high pressure of 5-16 MPa through a filter G4, and closing the stop valve K17 after the gas supply is finished; opening a manual stop valve K18, then opening a manual stop valve K22 or controlling an electromagnetic valve D4 through a PLC, then realizing 5-16 MPa high-pressure air supply through a high-precision filter G5, and closing the manual stop valve K22 or the electromagnetic valve D4 after the air supply is finished; after the gas supply is completed, the manual stop valve K20 or the manual stop valve K19 is opened, the electromagnetic valve D5 is opened through the PLC, the manual stop valve K23 is opened again, the gas in the gas collecting pipe is emptied, and the sound generated when the gas is discharged is reduced by the silencer U2, so that the environmental requirement is met.
It is to be mentioned that, the manual stop valve K15 is opened, the adjusted pressure is set on the PLC, the rear end pressure is fed back to the electronic pressure controller through the pressure adjusting controller J4, the pressure is automatically adjusted by J4, the pressure is adjusted from 5 to 16MPa to 0 to 1MPa, the pressure gauge valve KB6 is opened, the adjusted pressure is displayed on site through the pressure gauge P6 and displayed on the PLC through the pressure transmitter B6, the safety valve A5 can automatically exhaust, the adjusted pressure can be ensured to be 1.1 times lower than the design pressure, the stop valve K25 is opened, and the nitrogen after pressure reduction is provided;
opening a manual stop valve K16, setting the regulated pressure on a PLC, feeding back the rear end pressure to an electronic pressure controller through a pressure regulating controller J3, automatically regulating the pressure through J3, regulating the pressure from 5-16 MPa to 0-1 MPa, opening a pressure gauge valve KB7, displaying the regulated pressure through a pressure gauge P7 field and displaying the regulated pressure on the PLC through a pressure transmitter B7, automatically exhausting air through a safety valve A6, ensuring that the regulated pressure is 1.1 times lower than the designed pressure, opening a stop valve K24, and providing the decompressed nitrogen;
further, a pressure gauge valve KB8 is opened, a pressure gauge P8 displays the pressure of the gas collecting pipe on site, a pressure transmitter B8 displays the pressure of the gas collecting pipe on a PLC, and when the pressure in the gas collecting pipe exceeds 1.1 times of the designed pressure, a safety valve A7 can automatically exhaust gas, so that potential safety hazards caused by overhigh pressure in the gas collecting pipe are prevented; opening the manual stop valve K30, sampling and analyzing the nitrogen in the gas collecting pipe, and closing the manual stop valve K30 after analysis; opening a manual stop valve K26, supplying air at low pressure of 0-1 MPa through a filter G6, and closing the stop valve K26 after air supply is finished; opening a manual stop valve K27, then opening the manual stop valve K31 or controlling an electromagnetic valve D6 through a PLC, then realizing low-pressure air supply of 0-1 MPa through a filter G7, and closing the manual stop valve K31 or the electromagnetic valve D6 after the air supply is finished; and after the air feed was accomplished, open manual stop valve K29, perhaps open manual stop valve K28, open solenoid valve D7 through PLC, open manual stop valve K32 again, realize the gaseous evacuation in the discharge, sound when muffler U3 reduces the exhaust gas to satisfy the environmental requirement.
To sum up, this application is through adopting display screen display parameter and PLC cooperation control to realize two kinds of modes of automatic air feed of remote control and on-the-spot manual control air feed, and realize showing the purpose that promotes the security by remote decompression and sectional type decompression, make this high-pressure nitrogen gas control system have and show the effect that reduces the control degree of difficulty and promote high-pressure gas safety in utilization.
References to "first," "second," "third," "fourth," etc. (if any) in this application are intended to distinguish between similar elements and not necessarily to describe a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, or apparatus.
It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
The principle and the embodiment of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. A high pressure nitrogen gas control system which characterized in that: the pressure control device comprises a plurality of pressure control boxes which are sequentially connected and gradually reduce pressure, wherein each pressure control box is provided with a plurality of stop valves and is connected with a PLC (programmable logic controller), and the PLC is connected with a control screen; an electronic pressure regulating controller which is used for being connected with each other to provide a low-pressure driving air source is arranged between every two adjacent pressure control boxes; the pressure control box is a high-pressure control box, a medium-pressure control box and a low-pressure control box which are sequentially connected, the high-pressure control box is connected with an air inlet port to be filled with high-pressure gas, and a manual stop valve K1 used for opening and closing the air inlet port is arranged.
2. A high pressure nitrogen control system as claimed in claim 1, wherein: a filter G1 is connected in series between the air inlet port and the manual stop valve K1, a pressure gauge valve KB1 is arranged between the filter G1 and the manual stop valve K1, and the pressure gauge valve KB1 is connected with a pressure gauge P1 used for displaying air inlet pressure and a pressure transmitter B1 which is connected with the PLC and used for displaying air inlet pressure on the PLC.
3. A high pressure nitrogen control system as claimed in claim 1, wherein: manual stop valve K1 with it has manual stop valve K2 to establish ties between the high pressure accuse case, manual stop valve K2 connects in parallel has the solenoid valve D1 that is used for control to realize the air feed or cut off the gas.
4. A high pressure nitrogen control system as claimed in claim 1, wherein: the high-pressure control box is respectively connected with a stop valve K3, a stop valve K4, a stop valve K5, a stop valve K6, a stop valve K7, a stop valve K10, a stop valve K11, a safety valve A1 and a pressure gauge valve KB2; the pressure gauge valve KB2 is connected with a pressure gauge P2 for displaying the pressure of the gas collecting pipe and a pressure transmitter B2 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valve K3 is connected with a silencer U1 and used for air release, the stop valve K4 is sequentially connected with an electromagnetic valve D2 and a stop valve K8, the outlet end of the stop valve K8 is connected with the silencer U1, and the electromagnetic valve D2 is connected with the PLC; the stop valve K5 is used for sampling after being opened; the stop valve K6 is connected with a filter G2 and used for supplying air; the stop valve K7 is sequentially connected with an electromagnetic valve D3 and a filter G3 and used for supplying air, and the electromagnetic valve D3 is connected with a stop valve K9 in series; the stop valve K10 and the stop valve K11 are connected with the electronic pressure regulating controller and used for feeding air to the medium-pressure control box.
5. A high pressure nitrogen control system as claimed in claim 1, wherein: the medium-pressure control box is respectively connected with a stop valve K13, a stop valve K14, a stop valve K15, a stop valve K16, a stop valve K17, a stop valve K18, a stop valve K19, a stop valve K20, a stop valve K21, a safety valve A4 and a pressure gauge valve KB5; the pressure gauge valve KB5 is connected with a pressure gauge P5 for displaying the pressure of the gas collecting pipe and a pressure transmitter B5 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valve K13 and the stop valve K14 are matched and connected with the corresponding electronic pressure regulating controller to be connected with the high-pressure control box; the stop valve K15 and the stop valve K16 are matched and connected with the corresponding electronic pressure regulating controller to feed air to the low-pressure control box; the stop valve K17 is connected with a filter G4 and used for supplying air; the stop valve K18 is sequentially connected with an electromagnetic valve D4 and a filter G5 for supplying air, and the electromagnetic valve D4 is connected with a stop valve K22 in series; the stop valve K20 is connected with a silencer U2 and used for air release, the stop valve K19 is sequentially connected with an electromagnetic valve D5 and a stop valve K23, the outlet end of the stop valve K23 is connected with the silencer U2, and the electromagnetic valve D5 is connected with the PLC; the stop valve K21 is used for sampling after being opened.
6. A high pressure nitrogen control system as claimed in claim 1, wherein: the low-pressure control tank is respectively connected with a stop valve K24, a stop valve K25, a stop valve K26, a stop valve K27, a stop valve K28, a stop valve K29, a stop valve K30, a safety valve A7 and a pressure gauge valve KB8; the pressure gauge valve KB8 is connected with a pressure gauge P8 for displaying the pressure of the gas collecting pipe and a pressure transmitter B8 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the stop valves K24 and K25 are matched and connected with the corresponding electronic pressure regulating controllers to be connected with the high-pressure control box; the stop valve K26 is connected with a filter G6 and used for supplying air; the stop valve K27 is sequentially connected with an electromagnetic valve D6 and a filter G7 for supplying air, and the electromagnetic valve D6 is connected with a stop valve K31 in series; the stop valve K29 is connected with a silencer U3 and used for air release, the stop valve K28 is sequentially connected with an electromagnetic valve D7 and a stop valve K32, the outlet end of the stop valve K32 is connected with the silencer U3, and the electromagnetic valve D7 is connected with the PLC; the stop valve K30 is used for sampling after being opened.
7. A high pressure nitrogen control system as claimed in claim 1, wherein: the electronic voltage regulation controller comprises a voltage regulation controller J1, a voltage regulation controller J2, a voltage regulation controller J3 and a voltage regulation controller J4; the pressure regulating controller J1 and the pressure regulating controller J2 are used for connecting the high-pressure control box and the medium-pressure control box; the pressure regulating controller J3 and the pressure regulating controller J4 are used for connecting the low-pressure control box and the medium-pressure control box; and the pressure regulating controller J1, the pressure regulating controller J2, the pressure regulating controller J3 and the pressure regulating controller J4 are all connected with a driver port, and a stop valve K12 is arranged at the outlet end of the driver port.
8. A high pressure nitrogen control system according to claim 7, wherein: the air inlet end of the pressure regulating controller J1 is connected with the high-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A2 and a pressure gauge valve KB3; the pressure gauge valve KB3 is connected with a pressure gauge P3 for displaying the pressure of the gas collecting pipe and a pressure transmitter B3 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB3 is connected with the medium-pressure control tank; the air inlet end of the pressure regulating controller J2 is connected with the high-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A3 and a pressure gauge valve KB4; the pressure gauge valve KB4 is connected with a pressure gauge P4 for displaying the pressure of the gas collecting pipe and a pressure transmitter B4 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB4 is connected with the medium-pressure control box; the air inlet end of the pressure regulating controller J3 is connected with the medium-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A6 and a pressure gauge valve KB7; the pressure gauge valve KB7 is connected with a pressure gauge P7 for displaying the pressure of the gas collecting pipe and a pressure transmitter B7 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; the air outlet end of the pressure gauge valve KB7 is connected with the low-pressure control box; the air inlet end of the pressure regulating controller J4 is connected with the medium-pressure control box and the driver port, and the air outlet end is sequentially connected with a safety valve A5 and a pressure gauge valve KB6; the pressure gauge valve KB6 is connected with a pressure gauge P6 for displaying the pressure of the gas collecting pipe and a pressure transmitter B6 which is connected with the PLC and used for displaying the air inlet pressure on the PLC; and the air outlet end of the pressure gauge valve KB6 is connected with the low-pressure control tank.
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| CN202221061691.2U CN217846951U (en) | 2022-05-06 | 2022-05-06 | High-pressure nitrogen control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221061691.2U CN217846951U (en) | 2022-05-06 | 2022-05-06 | High-pressure nitrogen control system |
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Address after: 315000 Xiyang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Patentee after: Star Arrow Technology Co.,Ltd. Address before: 315000 Xiyang village, Shiqi street, Haishu District, Ningbo City, Zhejiang Province Patentee before: NINGBO XINGJIAN SPACE MACHINERY Co.,Ltd. |