CN113146817A - Automatic control system for residual gas utilization - Google Patents
Automatic control system for residual gas utilization Download PDFInfo
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- CN113146817A CN113146817A CN202110240096.9A CN202110240096A CN113146817A CN 113146817 A CN113146817 A CN 113146817A CN 202110240096 A CN202110240096 A CN 202110240096A CN 113146817 A CN113146817 A CN 113146817A
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- residual gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
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- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The disclosure relates to the technical field of residual gas utilization of still kettles, in particular to an automatic control system for residual gas utilization. The device comprises a residual gas generating device, a primary residual gas utilizing device, a secondary residual gas utilizing device and a tertiary residual gas utilizing device, wherein a pressure detecting device is used for detecting the air inlet pressure of the primary residual gas utilizing device, the secondary residual gas utilizing device and the tertiary residual gas utilizing device; the second-stage residual gas utilization device is connected with the residual gas generation device through a second valve component, a temperature detection device is arranged in the second-stage residual gas utilization device, and the second valve component performs opening and closing control according to the air inlet pressure of the second-stage residual gas utilization device and/or the internal temperature of the second-stage residual gas utilization device; the three-stage residual air utilization device performs opening and closing control according to the opening number of the first valve component and the second valve component.
Description
Technical Field
The disclosure relates to the technical field of residual gas utilization of still kettles, in particular to an automatic control system for residual gas utilization.
Background
The aerated brick is a high-performance light brick which is formed by adding and stirring lime, cement, silica sand and other raw materials according to a formula, pouring a reinforcing mesh with a specific structure for forming, precuring, cutting and finally curing by high-pressure steam. China's aerated concrete production enterprises are always energy-consuming households in the building industry, and how to reasonably utilize resources in the enterprises is a problem to be solved urgently.
Steam curing in-process at still kettle need be through the continuous a large amount of high temperature steam of compensation of boiler, and in the actual production, still kettle produces a large amount of residual gas, and the tradition is having a variety in the utilization mode to still kettle residual gas, however, generally will evaporate still kettle residual gas and let in that kind of utilizing device when judging, need artifical the participation, degree of automation is lower, and then leads to the low-usage of residual gas.
Disclosure of Invention
To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides an automatic residual air utilization control system.
The invention provides an automatic control system for residual gas utilization, which comprises a residual gas generating device, a primary residual gas utilizing device, a secondary residual gas utilizing device and a tertiary residual gas utilizing device, wherein the residual gas generating device is respectively connected with the primary residual gas utilizing device, the secondary residual gas utilizing device and the tertiary residual gas utilizing device through gas supply pipelines;
the pressure detection device is used for detecting the air inlet pressure of the first-stage residual air utilization device, the second-stage residual air utilization device and the third-stage residual air utilization device,
the first-stage residual gas utilization device is connected with the residual gas generation device through a first valve assembly, and the first valve assembly is electrically connected with the pressure detection device and is controlled to be opened and closed according to the air inlet pressure of the first-stage residual gas utilization device;
the second-stage residual gas utilization device is connected with the residual gas generation device through a second valve component, a temperature detection device is arranged in the second-stage residual gas utilization device and used for detecting the internal temperature of the second-stage residual gas utilization device, the second valve component is electrically connected with the pressure detection device and the temperature detection device respectively and is controlled to be opened and closed according to the air inlet pressure of the second-stage residual gas utilization device and/or the internal temperature of the second-stage residual gas utilization device;
the three-level residual air utilization device is connected with the residual air generation device through a third valve assembly, the third valve assembly is electrically connected with the first valve assembly and the second valve assembly, and opening and closing control is performed according to the opening number of the first valve assembly and the second valve assembly.
Optionally, the pressure detection device includes a first pressure sensor, the first pressure sensor with first valve assembly locates respectively on the air feed pipe of one-level residual gas utilization device, work as first pressure sensor detects when one-level residual gas utilization device's inlet pressure reaches a first pressure threshold value, first valve assembly control residual gas generating device with one-level residual gas utilization device intercommunication.
Optionally, still including supplementary residual gas generating device, first valve component includes a tee bend control valve, first tee bend control valve respectively with residual gas generating device supplementary residual gas generating device with the device is utilized to one-level residual gas connects, works as first pressure sensor detects the inlet pressure that the device was utilized to one-level residual gas reaches when first pressure threshold value, a tee bend control valve control residual gas generating device with the device intercommunication is utilized to one-level residual gas, works as first pressure sensor detects the inlet pressure that the device was utilized to one-level residual gas is less than when first pressure threshold value, a tee bend control valve control supplementary residual gas generating device with the device intercommunication is utilized to one-level residual gas.
Optionally, a first control valve is arranged at an air inlet of the primary residual air utilization device, and the first control valve is controlled to be opened and closed through a control button.
Optionally, the secondary residual gas utilization device comprises a first secondary residual gas utilization device, the second valve component comprises a second three-way control valve, the second three-way control valve is respectively connected with the first secondary residual gas utilization device, the residual gas generation device and the supplementary residual gas generation device, the pressure detection device comprises a second pressure sensor which is used for detecting the air inlet pressure of the first secondary residual air utilization device, when the pressure detected by the second pressure sensor reaches a second pressure threshold value, the second three-way control valve controls the residual gas generating device to be communicated with the first secondary residual gas utilizing device, and when the pressure detected by the second pressure sensor is smaller than the second pressure threshold value, the second three-way control valve controls the supplementary residual gas generating device to be communicated with the first secondary residual gas utilizing device.
Optionally, the second valve component includes a second control valve, the second control valve is located the air inlet department of first second grade residual air utilization device, temperature-detecting device includes first temperature sensor, first temperature sensor locates in the first second grade residual air utilization device, be used for detecting the inside temperature of first second grade residual air utilization device, the second control valve with first temperature sensor electricity is connected, nevertheless the temperature that first temperature sensor detected is less than when first temperature threshold value, the second control valve is opened, works as when the temperature that first temperature sensor detected is greater than second temperature threshold value, the second control valve is closed, first temperature threshold value is less than second temperature threshold value.
Optionally, the second-stage residual air utilization device comprises a second-stage residual air utilization device, the second valve assembly comprises a third control valve, and the third control valve is arranged at an air inlet of the second-stage residual air utilization device;
the pressure control device comprises a third pressure sensor, and the third pressure sensor is arranged on an air supply pipeline of the second-stage residual air utilization device and is used for detecting the residual air pressure to be introduced into the second-stage residual air utilization device;
the temperature detection device comprises a second temperature sensor which is arranged in the second-stage residual air utilization device and is used for detecting the temperature in the second-stage residual air utilization device;
when the residual air pressure detected by the third pressure sensor is smaller than a third pressure threshold value or the large temperature detected by the second temperature sensor is larger than the third temperature threshold value, the third control valve is closed; and when the residual air pressure detected by the third pressure sensor is greater than a third pressure threshold value and the temperature detected by the second temperature sensor is less than a fourth temperature threshold value, the third control valve is opened, and the third temperature threshold value is greater than the fourth temperature threshold value.
Optionally, the second-stage residual air utilization device comprises a third second-stage residual air utilization device, the second valve assembly comprises a fourth control valve, and the fourth control valve is arranged at an air inlet of the third second-stage residual air utilization device;
the temperature detection device comprises a third temperature sensor, and the third temperature sensor is arranged in the third secondary residual gas utilization device and is used for detecting the internal temperature of the third secondary residual gas utilization device;
and the fourth control valve is controlled to be opened and closed according to the temperature detected by the third temperature sensor, wherein when the temperature detected by the third temperature sensor is smaller than a fifth temperature threshold value, the fourth control valve is opened, and when the temperature detected by the third temperature sensor is larger than a sixth temperature threshold value, the fourth control valve is closed.
Optionally, the second-stage residual gas utilization device further comprises a fourth second-stage residual gas utilization device, and the fourth second-stage residual gas utilization device is communicated with the residual gas generation device.
Optionally, the third valve assembly is arranged at the air inlet of the tertiary residual air utilization device, and when the number of the first valve assembly and the second valve assembly that are opened is smaller than a first preset number, the third valve assembly is opened; when the number of the first valve component and the second valve component which are opened is larger than a second preset number, the third valve component is closed.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages: the automatic control system for residual gas utilization provided by the embodiment of the disclosure comprises a residual gas generating device, a primary residual gas utilizing device, a secondary residual gas utilizing device, a tertiary residual gas utilizing device and a pressure detecting device, wherein the residual gas generating device can respectively introduce residual gas into the primary residual gas utilizing device, the secondary residual gas utilizing device and the tertiary residual gas utilizing device; the secondary residual gas utilization device is connected with the residual gas generation device through a second valve component, a temperature detection device is arranged in the secondary residual gas utilization device, and the second valve component is controlled to be opened and closed according to the air inlet pressure of the secondary residual gas utilization device and/or the temperature detected by the temperature detection device; the three-level residual air utilization device is connected with the residual air generation device through a third valve assembly, the third valve assembly is electrically connected with the first valve assembly and the second valve assembly, and opening and closing control is performed according to the opening number of the first valve assembly and the second valve assembly. The automatic control system is utilized to residual air that this disclosed embodiment provided can utilize the operating condition of device and tertiary residual air to utilize device according to one-level residual air, second grade residual air, and control residual air generating device and let in the residual air to one-level residual air utilization device, second grade residual air utilization device and tertiary residual air utilization device respectively at the moment that needs, has realized the automated control that the residual air utilized, has saved the manpower, has improved residual air utilization efficiency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an automatic residual air utilization control system according to an embodiment of the present disclosure.
Wherein, 1, a residual gas generating device; 2. a supplementary residual gas generating device; 3. a first-stage residual gas utilization device; 4. a first three-way control valve; 5. a first pressure sensor; 6. a first control valve; 7. a second pressure sensor; 8. a second three-way control valve; 9. a first secondary residual gas utilization device; 10. a second control valve; 11. a third pressure sensor; 12. a third control valve; 13. a second stage residual gas utilization device; 14. a second temperature sensor; 15. a third secondary residual gas utilization device; 16. a fourth control valve; 17. a third valve assembly; 18. a third stage residual gas utilization device; 19. a fourth secondary residual gas utilization device; 20. a first temperature sensor; 21. a third temperature sensor.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
As shown in fig. 1, the present disclosure provides an automatic control system for residual gas utilization, including a residual gas generating device 1, a primary residual gas utilizing device 3, a secondary residual gas utilizing device, a tertiary residual gas utilizing device 18 and a pressure detecting device, wherein the residual gas generating device 1 is respectively connected with the primary residual gas utilizing device 3, the secondary residual gas utilizing device and the tertiary residual gas utilizing device 18 through gas supply pipelines;
the pressure detection device is used for detecting the air inlet pressure of the primary residual air utilization device 3, the secondary residual air utilization device and the tertiary residual air utilization device 18, the primary residual air utilization device 3 is connected with the residual air generation device 1 through a first valve component, the first valve component is electrically connected with the pressure detection device, and the opening and closing of the first valve component are controlled according to the air inlet pressure of the primary residual air utilization device 3; the second-stage residual gas utilization device is connected with the residual gas generation device 1 through a second valve component, a temperature detection device is arranged in the second-stage residual gas utilization device and used for detecting the internal temperature of the second-stage residual gas utilization device, and the second valve component is respectively electrically connected with the pressure detection device and the temperature detection device and is controlled to be opened and closed according to the inlet pressure of the second-stage residual gas utilization device and/or the internal temperature of the second-stage residual gas utilization device; the tertiary residual air utilization device 18 is connected with the residual air generation device 1 through a third valve assembly 17, the third valve assembly 17 is electrically connected with the first valve assembly and the second valve assembly, and the opening and closing of the third valve assembly 17 are controlled according to the opening number of the first valve assembly and the second valve assembly.
Specifically, in some embodiments of the present disclosure, the residual gas generating device 1 includes an autoclave, the autoclave can generate an autoclave residual gas during the steam curing process, and the autoclave residual gas can be introduced into different residual gas utilization devices to achieve different purposes. The primary residual gas utilization device 3 comprises a pouring building, wherein the pouring building is equipment required in the next procedure of a slurry tank in the production process of aerated bricks, is generally of a tank-shaped structure and is used for mixing the slurry mixed in the slurry tank with lime, aluminum powder and the like again. The pouring building has a requirement on the pressure of residual air, and the pouring building can only be allowed to enter the pouring building when the pressure of the residual air reaches a certain first pressure threshold value. Specifically, the first pressure threshold is set to be 6 kilograms, and when the pressure of the pouring kettle residual air detected by the first pressure sensor 5 is greater than or equal to 6 kilograms, the first valve assembly is opened to communicate the still kettle with the pouring building.
Further, in some embodiments of the present disclosure, the system further comprises a supplementary residual gas generating device 2, the first valve assembly comprises a first three-way control valve 4, the first three-way control valve 4 is respectively connected with the residual gas generating device 1, the supplementary residual gas generating device 2 and the primary residual gas utilizing device 3, when the pressure of the residual gas discharged from the autoclave detected by the first pressure sensor 5 is greater than or equal to the first pressure threshold, namely the pressure of the kettle pouring residual gas entering the primary residual gas utilization device 3 is more than or equal to a first pressure threshold value, the first three-way control valve 4 controls the residual gas generation device to be communicated with the primary residual gas utilization device 3, when the pressure value detected by the first pressure sensor 5 is smaller than the first pressure threshold value, the first three-way control valve 4 controls the supplementary residual gas generating device 2 to be communicated with the primary residual gas utilizing device 3, and supplementary residual gas is introduced into the primary residual gas utilizing device 3 by the supplementary residual gas generating device 2 for heating. Specifically, in some embodiments of the present disclosure, the supplementary residual gas generating device 3 may be a boiler, and steam generated by the boiler in the production process is introduced into the primary residual gas utilizing device for heating as supplementary residual gas when the pressure of the still residual gas does not reach the first pressure threshold.
Further, a first control valve 6 is arranged at an air inlet of the primary residual air utilization device 3, and the first control valve 6 is controlled to be opened and closed through a control button. Specifically, first control valve 6 sets up the air inlet department at the building of pouring, according to the actual need in the building of pouring, confirms whether need let in the residual air heating, then can open and close through operation control button control first control valve 6, and then whether control is to the interior cauldron residual air or the boiler steam of letting in of building of pouring.
Further, the second-stage residual gas utilization device comprises a first second-stage residual gas utilization device 9, the second valve assembly comprises a second three-way control valve 8, the second three-way control valve 8 is respectively connected with the first second-stage residual gas utilization device 9, the residual gas generation device 1 and the supplementary residual gas generation device 2, the pressure detection device comprises a second pressure sensor 7, the second pressure sensor 7 is used for detecting the air inlet pressure of the first second-stage residual gas utilization device 9, namely the pressure of the kettle-falling residual gas to be fed into the first second-stage residual gas utilization device 9, when the pressure detected by the second pressure sensor 7 is greater than or equal to a second pressure threshold value, the second three-way control valve 8 controls the residual gas generation device 1 to be communicated with the first second-stage residual gas utilization device 9, and the kettle-falling residual gas is fed into the first second-stage residual gas utilization device 9 to be heated. When the pressure detected by the second pressure sensor 7 is smaller than the second pressure threshold value, the second three-way control valve 8 controls the supplementary residual gas generating device 2 to be communicated with the first secondary residual gas utilizing device 9, and the boiler steam is introduced into the first secondary residual gas utilizing device 9 to be heated.
Specifically, first second grade residual gas utilizes device 9 is including raising the room, raises the room in actual production, and the pressure requirement to the residual gas needs to be not less than 1 kg, that is to say, when the pressure of falling cauldron residual gas that second pressure sensor detected is greater than or equal to 1 kg, second three way control valve 8 will evaporate the cauldron and raise the room intercommunication, makes and falls the cauldron residual gas and can enter into and raise the room, and when the pressure of falling cauldron residual gas that second pressure sensor 7 detected is less than 1 kg, second three way control valve 8 communicates boiler and raising the room, makes boiler steam enter into and raise indoor heating.
Further, in some embodiments of the present disclosure, the second valve assembly includes a second control valve 10, the second control valve 10 is disposed at an air inlet of the first secondary residual air utilization device 9, the temperature sensor includes a first temperature sensor 20, the first temperature sensor 20 is disposed in the first secondary residual air utilization device 9 and is used for detecting an internal temperature of the first secondary residual air utilization device 9, the second control valve 10 is electrically connected to the first temperature sensor 20, the second control valve 10 is opened when the temperature detected by the first temperature sensor 20 is less than a first temperature threshold, the second control valve 10 is closed when the temperature detected by the first temperature sensor 20 is greater than a second temperature threshold, and the first temperature threshold is less than the second temperature threshold.
Specifically, the first temperature threshold and the second temperature threshold can be adjusted according to the actual production requirement, in some embodiments of the present disclosure, the first temperature threshold is set to 40 degrees, the second temperature threshold is set to 45 degrees, the first temperature sensor 20 is disposed in the breeding chamber and is used for detecting the ambient temperature in the breeding chamber in real time, when the ambient temperature in the breeding chamber is lower than 40 degrees, the second control valve is opened to allow the still residual gas or the boiler steam to enter the breeding chamber for heating, and when the temperature in the breeding chamber is higher than 45 degrees, the second control valve 10 is closed to stop supplying gas to the breeding chamber.
Further, in some embodiments of the present disclosure, the secondary residual air utilization device includes a second secondary residual air utilization device 13, the second valve assembly includes a third control valve 12, and a third control valve 17 is disposed at an air inlet of the second secondary residual air utilization device 13; the pressure control device comprises a third pressure sensor 11, and the third pressure sensor 11 is arranged on the air supply pipeline of the second-stage residual air utilization device 13 and is used for detecting the pressure of residual air to be introduced into the second-stage residual air utilization device 13. The temperature detection device comprises a second temperature sensor 14, the second temperature sensor 14 is arranged in the second secondary residual gas utilization device 13 and is used for detecting the temperature in the second secondary residual gas utilization device 13, and when the pressure of residual gas detected by the third pressure sensor 11 is smaller than a third pressure threshold value or the temperature detected by the second temperature sensor 14 is larger than a third temperature threshold value, the third control valve 12 is closed; when the pressure of the residual air detected by the third pressure sensor 11 is greater than the third pressure threshold value and the temperature detected by the second temperature sensor 11 is less than the fourth temperature threshold value, the third control valve 12 is opened, and the third temperature threshold value is greater than the fourth temperature threshold value.
Specifically, second grade residual gas utilizes device 13 is including the slurry tank that is used for mixing the ground paste, be equipped with the air inlet on the slurry tank, the air inlet passes through the air inlet pipeline and evaporates cauldron residual gas exit linkage, third control valve 12 sets up the air inlet department at the slurry tank, second temperature sensor 14 sets up inside the slurry tank, third pressure sensor 11 sets up on the air inlet pipeline of slurry tank, detect the pressure that will enter into the residual gas in the slurry tank, third pressure threshold value sets up the pressure when the slurry tank is full, only when the pressure of the residual gas of falling the cauldron is greater than third pressure threshold value, the residual gas of falling the cauldron just can let in the slurry tank, consequently when the pressure of the residual gas of falling the cauldron is less than third pressure threshold value, no matter whether the temperature in the slurry tank is less than fourth temperature threshold value, the third control valve can not open. And when the temperature in the slurry tank is higher than the fourth temperature threshold value, the third control valve is not opened no matter what the pressure of the kettle-pouring residual gas is.
Further, in some embodiments of the present disclosure, the secondary residual air utilization device includes a third secondary residual air utilization device 15, the second valve assembly includes a fourth control valve 16, and the fourth control valve 16 is disposed at an air inlet of the third secondary residual air utilization device 15; the temperature detection device comprises a third temperature sensor 21, and the third temperature sensor 21 is arranged in the third secondary residual air utilization device 15 and is used for detecting the internal temperature of the third secondary residual air utilization device 15; the fourth control valve 16 is controlled to open and close according to the temperature detected by the third temperature sensor 21. Wherein, when the third temperature sensor 221 detects that the temperature is less than the fifth temperature threshold, the fourth control valve 16 is opened, and when the temperature detected by the third temperature sensor 15 is greater than the sixth temperature threshold, the fourth control valve 16 is closed.
Specifically, the third second-stage residual gas utilization device 15 includes a second static maintaining chamber, the second static maintaining chamber is directly connected to the still kettle, and the temperature requirement in the second static maintaining chamber is 30 degrees to 35 degrees, therefore, the third temperature sensor 21 is disposed in the second-stage static maintaining chamber, and is used for detecting the ambient temperature of the second static maintaining chamber, so that when the temperature detected in the second static maintaining chamber is less than 30 degrees (namely, a fifth temperature threshold), the fourth control valve 16 is automatically opened, the still pouring residual gas is introduced into the second static maintaining chamber, and when the temperature in the second-stage static maintaining chamber is higher than 35 degrees (namely, a sixth temperature threshold), the fourth control valve 16 is automatically closed, and the still pouring residual gas is stopped from being introduced into the second-stage static maintaining chamber.
Further, in some embodiments of the present disclosure, the secondary residual air utilization device further includes a fourth secondary residual air utilization device 19, and the fourth secondary residual air utilization device 19 is communicated with the residual air generation device 1. Specifically, the fourth secondary residual gas utilization device 19 comprises a heat exchanger, the heat exchanger is directly connected with the still kettle, and the still kettle residual gas can be directly introduced into the heat exchanger to be used as a heat source of the heat exchanger.
Further, in some embodiments of the present disclosure, the third valve assembly 17 is provided at the air inlet of the tertiary residual air utilization device 18, the third valve assembly 17 is opened when the number of openings in the first valve assembly and the second valve assembly is less than the first preset number, and the third valve assembly 17 is closed when the number of openings in the first valve assembly and the second valve assembly is greater than the second preset number.
Specifically, the three-level residual gas utilization device 18 comprises a grouting water tank, the grouting water tank is connected with the still kettle, the third valve component 17 comprises an electric valve, when the number of other residual gas utilization devices in the system is smaller than 2, the still kettle starts to supply gas to the grouting water tank, and when the number of other residual gas utilization devices is larger than 3, the third valve component 17 is closed to stop supplying gas to the grouting water tank.
It should be noted that, all the valves in the embodiments of the present disclosure adopt an electric valve or a pneumatic valve, and can be automatically controlled according to a trigger signal.
To sum up, the automatic control system is utilized to residual air that this disclosed embodiment provided can utilize the actual operating condition of device and tertiary residual air to utilize device according to one-level residual air, second grade residual air, and control residual air generating device lets in the residual air to one-level residual air utilization device, second grade residual air utilization device and tertiary residual air utilization device respectively at the moment that needs, has realized the automated control that the residual air utilized, has saved the manpower, has improved residual air utilization efficiency.
It is noted that, herein, relational terms such as "first," "second," "primary," "secondary," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The automatic control system for residual gas utilization is characterized by comprising a residual gas generating device (1), a primary residual gas utilizing device (3), a secondary residual gas utilizing device, a tertiary residual gas utilizing device (18) and a pressure detecting device, wherein the residual gas generating device (1) is respectively connected with the primary residual gas utilizing device (3), the secondary residual gas utilizing device and the tertiary residual gas utilizing device (18) through gas supply pipelines;
the pressure detection device is used for detecting the air inlet pressure of the primary residual air utilization device (3), the secondary residual air utilization device and the tertiary residual air utilization device (18),
the primary residual gas utilization device (3) is connected with the residual gas generation device (1) through a first valve assembly, and the first valve assembly is electrically connected with the pressure detection device and is controlled to be opened and closed according to the air inlet pressure of the primary residual gas utilization device (3);
the secondary residual gas utilization device is connected with the residual gas generation device (1) through a second valve component, a temperature detection device is arranged in the secondary residual gas utilization device and used for detecting the internal temperature of the secondary residual gas utilization device, and the second valve component is respectively electrically connected with the pressure detection device and the temperature detection device and is controlled to be opened and closed according to the air inlet pressure of the secondary residual gas utilization device and/or the internal temperature of the secondary residual gas utilization device;
the three-level residual air utilization device (18) is connected with the residual air generation device (1) through a third valve assembly (17), the third valve assembly (17) is electrically connected with the first valve assembly and the second valve assembly, and opening and closing control is carried out according to the opening number of the first valve assembly and the second valve assembly.
2. The automatic control system for residual air utilization according to claim 1, wherein the pressure detection device comprises a first pressure sensor (5), the first pressure sensor (5) and the first valve assembly are respectively disposed on the air supply pipeline of the primary residual air utilization device (1), and when the first pressure sensor (5) detects that the air inlet pressure of the primary residual air utilization device (1) reaches a first pressure threshold, the first valve assembly controls the residual air generation device (1) to communicate with the primary residual air utilization device (3).
3. The residual air utilization automatic control system according to claim 2, further comprising a supplementary residual air generation device (2), wherein the first valve assembly comprises a first three-way control valve (4) which is respectively connected with the residual air generation device (1), the supplementary residual air generation device (2) and the primary residual air utilization device (3), when the first pressure sensor (5) detects that the air inlet pressure of the primary residual air utilization device (3) reaches the first pressure threshold, the first three-way control valve (4) controls the residual air generation device (1) to be communicated with the primary residual air utilization device (3), and when the first pressure sensor (5) detects that the air inlet pressure of the primary residual air utilization device (3) is less than the first pressure threshold, the first three-way control valve (4) controls the supplementary residual air generation device (2) and the primary residual air utilization device (2) The devices (3) are communicated.
4. The residual air utilization automatic control system according to claim 3, characterized in that a first control valve (6) is arranged at an air inlet of the primary residual air utilization device (3), and the first control valve (6) is controlled to be opened and closed by a control button.
5. The residual gas utilization automatic control system according to claim 3, wherein the secondary residual gas utilization device comprises a first secondary residual gas utilization device (9), the second valve assembly comprises a second three-way control valve (8), the second three-way control valve (8) is respectively connected with the first secondary residual gas utilization device (9), the residual gas generation device (1) and the supplementary residual gas generation device (2), the pressure detection device comprises a second pressure sensor (7), the second pressure sensor (7) is used for detecting the intake pressure of the first secondary residual gas utilization device (9), when the pressure detected by the second pressure sensor (7) reaches a second pressure threshold value, the second three-way control valve (8) controls the residual gas generation device (1) to communicate with the first secondary residual gas utilization device (9), when the pressure detected by the second pressure sensor (7) is smaller than the second pressure threshold value, the second three-way control valve (8) controls the supplementary residual gas generating device (2) to be communicated with the first secondary residual gas utilizing device (9).
6. The residual air utilization automatic control system according to claim 5, wherein the second valve assembly comprises a second control valve (10), the second control valve (10) is disposed at an air inlet of the first secondary residual air utilization device (9), the temperature detection device comprises a first temperature sensor (20), the first temperature sensor (20) is disposed in the first secondary residual air utilization device (9) for detecting an internal temperature of the first secondary residual air utilization device (9), the second control valve (10) is electrically connected with the first temperature sensor (20), the second control valve (10) is opened when the temperature detected by the first temperature sensor (20) is less than the first temperature threshold, and when the temperature detected by the first temperature sensor (20) is greater than a second temperature threshold, the second control valve (10) is closed, the first temperature threshold being less than the second temperature threshold.
7. The automatic residual air utilization control system according to claim 1, wherein the secondary residual air utilization device comprises a second secondary residual air utilization device (13), the second valve assembly comprises a third control valve (12), and the third control valve (12) is arranged at an air inlet of the second secondary residual air utilization device (13);
the pressure control device comprises a third pressure sensor (11), and the third pressure sensor (11) is arranged on an air supply pipeline of the second-stage residual air utilization device (13) and is used for detecting the residual air pressure to be led into the second-stage residual air utilization device (13);
the temperature detection device comprises a second temperature sensor (14), and the second temperature sensor (14) is arranged in the second secondary residual gas utilization device (13) and is used for detecting the temperature in the second secondary residual gas utilization device (13);
when the residual air pressure detected by the third pressure sensor (11) is smaller than a third pressure threshold value or the temperature detected by the second temperature sensor (14) is larger than a third temperature threshold value, the third control valve (12) is closed; when the residual air pressure detected by the third pressure sensor (11) is larger than a third pressure threshold value and the temperature detected by the second temperature sensor (14) is smaller than a fourth temperature threshold value, the third control valve (12) is opened, and the third temperature threshold value is larger than the fourth temperature threshold value.
8. The automatic residual air utilization control system according to claim 1, wherein the secondary residual air utilization device comprises a third secondary residual air utilization device (15), the second valve assembly comprises a fourth control valve (16), and the fourth control valve (16) is arranged at an air inlet of the third secondary residual air utilization device (15);
the temperature detection device comprises a third temperature sensor (21), and the third temperature sensor (21) is arranged in the third secondary residual gas utilization device (15) and is used for detecting the internal temperature of the third secondary residual gas utilization device (15);
the fourth control valve (16) performs opening and closing control according to the temperature detected by the third temperature sensor (21), wherein when the temperature detected by the third temperature sensor (21) is less than a fifth temperature threshold value, the fourth control valve (16) is opened, and when the temperature detected by the third temperature sensor (21) is greater than a sixth temperature threshold value, the fourth control valve (16) is closed.
9. The residual air utilization automatic control system according to claim 1, characterized in that the secondary residual air utilization device further comprises a fourth secondary residual air utilization device (19), the fourth secondary residual air utilization device (19) being in communication with the residual air generation device (1).
10. The automatic residual air utilization control system according to any one of claims 1 to 9, wherein the third valve assembly (17) is provided at an air inlet of the tertiary residual air utilization device (18), and when the number of openings in the first valve assembly and the second valve assembly is less than a first preset number, the third valve assembly (17) is opened; when the number of openings of the first valve assembly and the second valve assembly is greater than a second preset number, the third valve assembly (17) is closed.
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