CN210738684U - Gas control device and system - Google Patents
Gas control device and system Download PDFInfo
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- CN210738684U CN210738684U CN201920663953.4U CN201920663953U CN210738684U CN 210738684 U CN210738684 U CN 210738684U CN 201920663953 U CN201920663953 U CN 201920663953U CN 210738684 U CN210738684 U CN 210738684U
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- 239000007789 gas Substances 0.000 claims abstract description 265
- 239000002737 fuel gas Substances 0.000 claims abstract description 76
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 230000001276 controlling effect Effects 0.000 claims description 33
- 239000000446 fuel Substances 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 12
- 239000000203 mixture Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
The embodiment of the application provides a gas controlling means and system, the device includes: the device comprises a controller, a first conveying unit and a second conveying unit, wherein the first conveying unit and the second conveying unit are respectively connected with the controller; the first conveying unit is used for conveying the first concentration fuel gas to the power device; the second conveying unit is used for conveying the fuel gas with the second concentration to the power device; the controller is used for controlling the fuel gas injection amount of the first conveying unit and the fuel gas injection amount of the second conveying unit; wherein the concentration of the first concentration of fuel gas is different from the concentration of the second concentration of fuel gas. This application embodiment is through setting up first conveying unit and second conveying unit in order to carry the gas of two kinds of different concentrations, when low concentration gas concentration is unstable, makes the controller can pass through the concentration of control conveying unit in order to adjust the mixed gas for power device can the stable combustion.
Description
Technical Field
The application relates to the field of gas control, in particular to a gas control device and system.
Background
At present, many mines have abundant gas, high-concentration gas is basically used for daily life of residents, industrial power generation and the like, but the utilization rate of low-concentration gas (particularly the concentration is less than or equal to 12%) is very limited, and because the concentration of the low-concentration gas is low and unstable, the low-concentration gas is directly exhausted and burnt in the treatment mode of many mines, so that resources are wasted.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the embodiments of the present application is to provide a gas control device and a gas control system, so as to solve the problem of low utilization rate of low-concentration gas.
In a first aspect, an embodiment of the present application provides a gas control device, including: the device comprises a controller, a first conveying unit and a second conveying unit, wherein the first conveying unit and the second conveying unit are respectively connected with the controller; the first conveying unit is used for conveying the first concentration fuel gas to the power device; the second conveying unit is used for conveying the fuel gas with the second concentration to the power device; the controller is used for controlling the fuel gas injection amount of the first conveying unit and the fuel gas injection amount of the second conveying unit; wherein the concentration of the first concentration of fuel gas is different from the concentration of the second concentration of fuel gas.
This application embodiment is through setting up the gas of two kinds of conveying unit in order to carry two kinds of different concentrations, when the concentration unstability of low concentration gas, makes the controller can pass through the concentration of control conveying unit in order to adjust the mixed gas for power device can the stable combustion, improves the utilization ratio of low concentration gas.
Further, the device also comprises a third conveying unit connected with the controller; the third conveying unit is used for conveying air to the power device, and the controller is further used for controlling the air injection amount of the third conveying unit.
This application embodiment is through setting up the third conveying unit, and when the gas mixture concentration was too high, the controller can be through controlling the third conveying unit and carry the air to prevent that the too high condition of gas mixture concentration from taking place, make power device can the stable combustion, improve the utilization ratio of low concentration gas from this.
Further, the first conveying unit comprises a first pipeline and a first adjusting component, the second conveying unit comprises a second pipeline and a second adjusting component, and the third conveying unit comprises a third pipeline and a third adjusting component; the first adjusting component is arranged on the first pipeline, the first pipeline is used for conveying the fuel gas with the first concentration to the power device, and the first adjusting component is used for controlling the injection amount of the fuel gas with the first concentration; the second adjusting part is arranged on a second pipeline, the second pipeline is used for conveying the fuel gas with the second concentration to the power device, and the second adjusting part is used for controlling the injection amount of the fuel gas with the second concentration; the third adjusting part is arranged on a third pipeline, the third pipeline is used for conveying air to the power device, and the third adjusting part is used for controlling the injection amount of the air.
This application embodiment is through setting up pipeline and adjusting part in the conveying unit, when low concentration gas concentration crosses lowly for the controller can control corresponding pipeline transportation gas's flow through each adjusting part, makes power device can stabilize the burning and mixes, has improved the utilization ratio of low concentration gas.
Further, the apparatus further comprises: the first gas sensor is arranged on the first pipeline, and the second gas sensor is arranged on the second pipeline; the first gas sensor and the second gas sensor are connected with the controller, the first gas sensor is used for detecting the concentration of the first concentration gas, and the second gas sensor is used for detecting the concentration of the second concentration gas.
The embodiment of the application is characterized in that the first pipeline is provided with the first gas sensor, the second pipeline is provided with the second gas sensor, and the first gas sensor and the second gas sensor are arranged on the first pipeline to acquire the concentration of the first concentration gas and the concentration of the second concentration gas, so that the controller can still adjust the concentration of the mixed gas according to the concentration of the first concentration gas and the concentration of the second concentration gas under the condition that the power device is not started.
Further, the apparatus further comprises: an oxygen sensor; the oxygen sensor is arranged at the smoke exhaust position of the power device and is connected with the controller, and the oxygen sensor is used for detecting the actual air-fuel ratio of the mixed gas; wherein, the mixed fuel gas comprises a first concentration fuel gas and a second concentration fuel gas.
This application embodiment sets up oxygen sensor through the department of discharging fume at power device for power device is under the condition of normal operating, and the controller can directly pass through oxygen sensor, acquires the actual air-fuel ratio that the gas mixture corresponds more simply, fast.
Further, the apparatus further comprises: a mixer; one end of the mixer is connected with the first conveying unit, the second conveying unit and the third conveying unit respectively, and the other end of the mixer is connected with the power device.
This application embodiment is through setting up the blender for first concentration gas, second concentration gas and air can make the gas mixture when the follow-up initial combustion in the blender, because the gas mixture concentration is unstable leads to the unable normal start of power device.
Further, a throttle valve is arranged between the mixer and the power device; the throttle valve is connected with the controller, and the controller is also used for controlling the throttle valve so as to control the flow of the mixed gas.
According to the embodiment of the application, the throttle valve is arranged between the mixer and the power device, so that the throttle valve can adjust the flow of mixed gas entering the power device, and the rotating speed of the power device is controlled.
Further, the apparatus further comprises: a rotational speed sensor; the rotating speed sensor is arranged on the power device and connected with the controller, and the rotating speed sensor is used for measuring the rotating speed of the power device; the controller is used for controlling the opening of the throttle valve according to the rotating speed of the power device.
According to the embodiment of the application, the actual rotating speed of the power device is obtained through the rotating speed sensor, and the opening degree of the throttle valve is controlled through the controller according to the actual rotating speed so as to adjust the rotating speed of the power device, so that the rotating speed of the power device is stable, and the power device is in a normal operation state.
Further, a flame arrester is arranged between the throttle valve and the power device.
This application embodiment is through setting up the spark arrester between throttle and power device, can prevent that power device flame and the mixed gas in the blender from contacting in advance when burning.
In a second aspect, an embodiment of the present application further provides a gas control system, including: the power device is connected with the gas control device and is used for burning mixed gas; the mixed gas comprises a first concentration gas and a second concentration gas, and the concentration of the first concentration gas is different from that of the second concentration gas.
The embodiment of the application sets up above-mentioned gas controlling means in gas control system, when the concentration of low concentration gas is low excessively, can adjust the concentration of mixing the gas through gas controlling means for power device can the stable combustion, has improved the utilization ratio of low concentration gas.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a gas control device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another gas control device provided in the embodiment of the present application;
FIG. 3 is a schematic structural diagram of another gas control device provided in the embodiment of the present application;
FIG. 4 is a schematic structural diagram of another gas control device provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a gas control system according to an embodiment of the present application.
Icon: 10-a gas control system; 100-a gas control device; 1010-a controller; 1020-a first delivery unit; 1021-a first conduit; 1022 — a first adjustment member; 1030-a second transport unit; 1031-a second conduit; 1032-a second adjustment member; 1040-a third transport unit; 1041-a third conduit; 1042 — a third adjustment member; 1050-a first gas sensor; 1060 — a second fuel gas sensor; 1070-oxygen sensors; 1080-a mixer; 1090-a throttle valve; 1100-rotation speed sensor; 1110-a flame arrestor; 1120-a supercharger; 1130-a cooler; 200-power device.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally used to present the product of the present invention, and are used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It should be noted that the conventional gas control device 100 often burns high-concentration gas, and the gas with lower concentration cannot be ignited in the power device 200 due to too low concentration, so that the power device 200 cannot be started or normally burns, and therefore cannot be utilized.
Fig. 1 is a schematic structural diagram of a gas control device provided in an embodiment of the present application, and fig. 2 is a schematic structural diagram of another gas control device provided in an embodiment of the present application, and as shown in fig. 1 and fig. 2, the gas control device 100 includes: a controller 1010, and a first conveyance unit 1020 and a second conveyance unit 1030 respectively connected to the controller 1010; the first delivery unit 1020 is used for delivering the first concentration fuel gas to the power plant 200; the second delivery unit 1030 is used for delivering a second concentration of fuel gas to the power plant 200; the controller 1010 is configured to control the gas injection amount of the first delivery unit 1020 and the gas injection amount of the second delivery unit 1030; wherein the concentration of the first concentration of fuel gas is different from the concentration of the second concentration of fuel gas.
In a specific implementation, in the gas control apparatus 100 provided in the present application, one end of the first conveying unit 1020 is connected to the power plant 200, and the gas with the first concentration may enter the power plant 200 through the other end of the first conveying unit 1020. One end of the second delivery unit 1030 is connected to the power plant 200, and the second concentration fuel gas may enter the power plant 200 through the other end of the second delivery unit 1030. The power plant 200 may burn the mixed gas delivered to the interior of the power plant 200, wherein the mixed gas includes, but is not limited to, a first concentration of gas and a second concentration of gas, and the concentration of the first concentration of gas is different from the concentration of the second concentration of gas.
The controller 1010 is also connected to the first feeding unit 1020 and the second feeding unit 1030, respectively, and the controller 1010 can control the injection amount of the first concentration fuel gas by controlling the first feeding unit 1020 and can also control the injection amount of the second feeding fuel gas by controlling the second feeding unit 1030. From this, this application carries the gas of two kinds of different concentrations to power device 200 through two kinds of conveying unit, and when low concentration gas concentration is unstable, controller 1010 can be through the concentration of control conveying unit in order to adjust the gas mixture for power device 200 can stabilize the burning gas mixture, improves the utilization ratio of low concentration gas from this.
It should be noted that if the concentration of the gas with the first concentration is less than that of the gas with the second concentration, and at the same time, because the concentration of the gas with the first concentration is too low, the controller 1010 may increase the injection amount of the gas with the second concentration, so that the concentration of the mixed gas finally combusted by the power plant 200 is within the combustion range, so that the power plant 200 may stably combust.
The power unit 200 is an internal combustion engine. The application provides a gas controlling means 100 can apply to inside the mill, and the flow of the different concentration gas that control gets into power device 200, and concrete gas controlling means 100's application environment can be adjusted according to actual gas control demand. The gas may be gas, natural gas, methane, coal gas, or other combustible gas, and the specific type of gas may be selected according to the combustion requirement and the control method of the gas control device 100.
For example, if the power device 200 is a piston engine and the gas is gas, in the embodiment of the present application, the first delivery unit 1020 delivers the first concentration of gas to the engine, and the second delivery unit 1030 delivers the second concentration of gas to the engine, wherein the first concentration of gas may be a low concentration, and correspondingly, the second concentration of gas may be a high concentration, and the first concentration of gas may also be a high concentration, and the second concentration of gas may also be a low concentration. And the controller 1010 may control the first delivery unit 1020 and the second delivery unit 1030 to adjust the flow rate of the first concentration gas and the flow rate of the second concentration gas, so that the engine may stably combust the mixed gas. The mixed gas comprises low-concentration gas and high-concentration gas, so that the engine can safely burn the low-concentration gas under the condition that the high-concentration gas is mixed in the engine.
On the basis of the above embodiment, the apparatus further includes a third feeding unit 1040 connected to the controller 1010; the third feeding unit 1040 is configured to feed air to the power plant 200, and the controller 1010 is further configured to control an air injection amount of the third feeding unit 1040.
In a specific implementation, one end of the third conveying unit 1040 is connected to the power plant 200, and air may be injected through the other end of the third conveying unit 1040 and conveyed to the power plant 200 through the third conveying unit 1040. Thus, the mixed gas combusted by the power plant 200 may also include air.
Also, the controller 1010 is also connected to the third delivery unit 1040, and the controller 1010 may control the injection amount of air by controlling the third delivery unit 1040 because the concentration of the low concentration fuel gas is unstable. If the concentration of the first concentration gas is too high, the controller 1010 may control the third feeding unit 1040 to increase the injection amount of the air so that the concentration of the mixture gas finally combusted by the power plant 200 is within the combustion range, so that the power plant 200 may stably combust.
It is worth mentioning that the delivery units may include not only the first delivery unit 1020, the second delivery unit 1030 and the third delivery unit 1040, but also other delivery units for delivering other gases. For example, the delivery unit may include a fourth delivery unit for delivering a gas of a third concentration different from the first concentration and the second concentration, and the controller 1010 may control the first delivery unit 1020, the second delivery unit 1030, the third delivery unit 1040, and the fourth delivery unit, thereby adjusting the concentration of the mixed gas more quickly. Therefore, the number of the specific delivery units and the type of gas delivered can be set according to actual needs.
On the basis of the above embodiment, the first delivery unit 1020 includes the first conduit 1021 and the first adjusting member 1022, the second delivery unit 1030 includes the second conduit 1031 and the second adjusting member 1032, and the third delivery unit 1040 includes the third conduit 1041 and the third adjusting member 1042; the first adjusting part 1022 is disposed on the first pipeline 1021, the first pipeline 1021 is used for conveying a first concentration fuel gas to the power plant 200, and the first adjusting part 1022 is used for controlling the injection amount of the first concentration fuel gas; the second adjusting component 1032 is arranged on the second pipe 1031, the second pipe 1031 is used for delivering the second concentration fuel gas to the power device 200, and the second adjusting component 1032 is used for controlling the injection amount of the second concentration fuel gas; the third adjusting member 1042 is disposed on the third pipe 1041, the third pipe 1041 is used for conveying air to the power device 200, and the third adjusting member 1042 is used for controlling an injection amount of the air.
In a specific implementation process, one end of the first pipeline 1021 is connected to the power plant 200, the other end of the first pipeline 1021 injects the first concentration gas, and the first concentration gas is delivered to the power plant 200 through the first pipeline 1021, the first adjusting member 1022 may be disposed on the first pipeline 1021, and the first adjusting member 1022 is configured to adjust an injection amount of the first concentration gas. The first adjusting member 1022 may be disposed at any position on the first conduit 1021, and the specific position of the first adjusting member 1022 may be selected according to the requirement of actually adjusting the gas injection amount. The first adjustment component 1022 is also connected to the controller 1010, and the controller 1010 can adjust the injection amount of the first concentration fuel gas by controlling the first adjustment component 1022.
And, one end of the second pipe 1031 is connected to the power plant 200, the other end of the second pipe 1031 injects the second concentration gas, and delivers the second concentration gas to the power plant 200 through the second pipe 1031, and a second adjusting member 1032 may be provided on the second pipe 1031, the second adjusting member 1032 being used to adjust the injection amount of the second concentration gas. The second adjusting member 1032 may be disposed at any position on the second pipe 1031, and the specific position where the second adjusting member 1032 is disposed may be selected according to the need of actually adjusting the gas injection amount. The second adjustment member 1032 is also connected to the controller 1010, and the controller 1010 can adjust the injection amount of the second concentration fuel gas by controlling the second adjustment member 1032.
Meanwhile, one end of the third pipe 1041 is connected to the power device 200, the other end of the second pipe 1031 injects air, and delivers the air to the power device 200 through the third pipe 1041, and the third adjusting member 1042 may be disposed on the third pipe 1041, and the third adjusting member 1042 is used to adjust the injection amount of the air. The third adjusting member 1042 may be disposed at any position on the third pipe 1041, and the specific position of the third adjusting member 1042 may be selected according to the requirement of the actual air injection amount. The third adjusting member 1042 is also connected to the controller 1010, and the controller 1010 can adjust the injection amount of the gas having the third concentration by controlling the third adjusting member 1042.
Therefore, in the embodiment of the present application, by providing the pipeline and the adjusting component in the delivery unit, when the concentration of the low-concentration fuel gas is unstable, the controller 1010 can control the injection amount of the corresponding pipeline delivery gas through the adjusting component, so that the concentration of the mixed fuel gas is within the combustion range, and thus the power plant 200 can stably combust.
It should be noted that the adjusting component may be a valve, and the controller 1010 may control the injection amount of the gas by controlling the opening degree of the valve. The first adjustment component 1022 can be a first gas flow valve, the second adjustment component 1032 can be a second gas flow valve, and the third adjustment component 1042 can be an air valve. The controller 1010 can control the injection amount of the gas of the first concentration by controlling the first gas flow valve, the injection amount of the gas of the second concentration by controlling the second gas flow valve, and the injection amount of the air by controlling the air valve.
It should be noted that, a pressure sensor, a temperature sensor and a small-sized processor are arranged inside the adjusting component, the small-sized processor can obtain the corresponding gas temperature through the internal temperature sensor, obtain the corresponding gas pressure through the pressure sensor, and obtain the gas flow rate flowing through the adjusting component according to the size and the opening degree of the adjusting component. Meanwhile, the small-sized processor can also send the gas flow and the opening degree of the regulating component to the controller 1010, so that the controller 1010 can know the gas flow in each conveying unit, and the controller 1010 can then control the regulating component according to the gas flow.
Fig. 3 is a schematic structural diagram of another gas control device provided in an embodiment of the present application, and as shown in fig. 3, the device further includes: a first gas sensor 1050 disposed on the first pipe 1021 and a second gas sensor 1060 disposed on the second pipe 1031; the first gas sensor 1050 and the second gas sensor 1060 are connected to the controller 1010, the first gas sensor 1050 is used for detecting the concentration of the gas having the first concentration, and the second gas sensor 1060 is used for detecting the concentration of the gas having the second concentration.
In a specific implementation, the first gas sensor 1050 is disposed on the first conduit 1021, and the operation state of the power plant 200 is generally divided into an inactive state and an operating state. If the power plant 200 is in the non-activated state, the controller 1010 may obtain the concentration of the gas with the first concentration through the first gas sensor 1050, and the second gas sensor 1060 is disposed on the second pipe 1031, so that the controller 1010 may obtain the corresponding concentration of the gas with the second concentration through the second gas sensor 1060. The controller 1010 controls the delivery unit according to the concentration of the first concentration fuel gas and the concentration of the second concentration fuel gas to adjust the concentration of the mixed fuel gas to prevent the concentration of the mixed fuel gas from being too low, so that the power device 200 cannot be normally started.
It should be noted that the controller 1010 may calculate the gas concentration corresponding to the mixed gas according to the concentration of the gas with the first concentration and the concentration of the gas with the second concentration. The controller 1010 controls the first delivery unit 1020, the second delivery unit 1030, and the third delivery unit 1040 according to the preset mixed gas concentration range and the measured gas concentration, so that the mixed gas concentration can be within the preset mixed gas concentration range, and the power plant 200 can be ensured to stably operate when subsequently entering the operating state.
It should be noted that, when the power plant 200 is in the combustion state, the controller 1010 may also obtain the concentration of the gas with the first concentration and the concentration of the gas with the second concentration to prevent the concentration of the gas from changing suddenly, which may result in an excessive change in the concentration of the mixed gas.
Both the first fuel gas sensor 1050 and the second fuel gas sensor 1060 may be methane sensors, and the methane sensors may directly measure the gas concentration. The specific type of the gas sensor can be selected according to the type of the gas.
For example, assume that the concentration of the first concentration of fuel gas is lower than the concentration of the second concentration of fuel gas. When the power unit 200 is in the inactivated state, the controller 1010 may control the opening degree of the first adjustment part 1022 of the first feeding unit 1020. The controller 1010 may calculate the concentration of the mixed gas based on the concentration of the first concentration gas and the concentration of the second concentration gas.
If the mixed gas concentration is lower than the preset mixed gas concentration range, the controller 1010 may control the opening degrees of the first and third adjusting members 1022 and 1042 to be unchanged, and control the opening degree of the second adjusting member 1032 to be increased, so as to increase the mixed gas concentration. The controller 1010 may also control the opening degree of the first adjustment member 1022 not to change, the opening degree of the second adjustment member 1032 to increase, the opening degree of the third adjustment member 1042 to decrease, or the third adjustment member 1042 to close.
If the mixed gas concentration is higher than the preset mixed gas concentration range, the controller 1010 may control the opening degrees of the first and second adjusting parts 1022 and 1032 to be unchanged, and control the opening degree of the third adjusting part 1042 to be increased, so as to decrease the mixed gas concentration. It is also possible for the controller 1010 to control the opening degree of the first adjusting part 1022 not to change, to control the opening degree of the second adjusting part 1032 to decrease, or to control the opening degree of the third adjusting part 1042 to increase, by closing the second adjusting part 1032.
If the mixed gas concentration is within the preset mixed gas concentration range, the controller 1010 may control the opening degree of the first adjustment part 1022, the opening degree of the second adjustment part 1032, and the opening degree of the third adjustment part 1042 to be constant. The specific manner in which the controller 1010 controls the regulating member may be selected based on the actual mixed gas concentration.
Fig. 4 is a schematic structural diagram of another gas control device provided in an embodiment of the present application, and as shown in fig. 4, the device further includes: an oxygen sensor 1070; the oxygen sensor 1070 is arranged at the smoke exhaust position of the power device 200, the oxygen sensor 1070 is connected with the controller 1010, and the oxygen sensor 1070 is used for detecting the actual air-fuel ratio of the mixed gas; wherein, the mixed fuel gas comprises a first concentration fuel gas and a second concentration fuel gas.
In a specific implementation process, an oxygen sensor 1070 may be further disposed at a smoke exhaust of the power plant 200, and when the power plant 200 is in an operating state, the power plant 200 may combust the mixed gas and exhaust the gas through the smoke exhaust. The controller 1010 may obtain the oxygen content in the exhaust gas through the oxygen sensor 1070, and calculate the actual air-fuel ratio of the mixed gas according to the oxygen content. The air-fuel ratio is the ratio of the mass of air to the mass of fuel in the combustible mixture, and under certain conditions, the air-fuel ratio can also be used for representing the concentration of fuel gas. Therefore, the controller 1010 can obtain the concentration of the mixed gas more quickly through the oxygen sensor 1070, so that the controller 1010 can control the opening degree of the first adjusting member 1022, the opening degree of the second adjusting member 1032, and the opening degree of the third adjusting member 1042 according to the actual air-fuel ratio and the preset air-fuel ratio range.
Moreover, the manner in which the controller 1010 controls the opening degree of the first adjusting member 1022, the opening degree of the second adjusting member 1032, and the opening degree of the third adjusting member 1042 according to the actual air-fuel ratio and the preset air-fuel ratio range is the same as the manner in which the adjusting members are controlled according to the gas concentration, and the specific control manner is not described here again.
It should be noted that, when the power plant 200 is in the operating state, the controller 1010 may further obtain the corresponding concentrations of the first concentration fuel gas and the second concentration fuel gas through the first fuel gas sensor 1050 and the second fuel gas sensor 1060, and control the opening degree of the first adjusting part 1022, the opening degree of the second adjusting part 1032, and the opening degree of the third adjusting part 1042 with the concentrations of the first concentration fuel gas and the second concentration fuel gas as secondary factors, so as to prevent the concentration of the fuel gas from changing suddenly and causing the concentration of the mixed fuel gas to change too much.
It should be noted that the preset air-fuel ratio range may be found by searching a preset air-fuel ratio MAP. The MAP may be composed of a rotation speed (r/min) and a supercharging pressure (kPa) as main parameters, and preset air-fuel ratio data as an output. The specific air-fuel ratio MAP may be adjusted according to actual control demands.
On the basis of the above embodiment, the apparatus further includes: a mixer 1080; one end of the mixer 1080 is connected to the first conveying unit 1020, the second conveying unit 1030, and the third conveying unit 1040, respectively, and the other end of the mixer 1080 is connected to the power unit 200.
In a specific implementation process, the first concentration fuel gas, the second concentration fuel gas and the air can be merged in the mixer 1080, all the gases are uniformly mixed through the mixer 1080, and the high-precision uniformly-mixed fuel gas is generated according to the use requirement, so that when the subsequent power device 200 burns the mixed gas, the situation that the power device 200 is unstable in operation due to the non-uniform mixed gas is prevented.
It is noted that mixer 1080 may be a vortex mixer 1080, and that vortex chamber may have two inlets and one outlet to provide uniform mixing of the gases entering mixer 1080.
In addition to the above embodiments, a throttle 1090 is further provided between the mixer 1080 and the power plant 200; the throttle 1090 is connected to the controller 1010, and the controller 1010 is further configured to control the throttle 1090 to control the flow rate of the mixed gas.
In a specific implementation, the air-fuel mixture may be allowed to enter the power plant 200 through the throttle 1090, and the throttle 1090 is further connected to the controller 1010, and the controller 1010 may control the opening degree of the throttle 1090 to adjust the flow rate of the air-fuel mixture entering the power plant 200, so that the rotation speed of the power plant 200 is also changed along with the change of the flow rate of the air-fuel mixture.
It is worth mentioning that the apparatus further comprises: a rotational speed sensor 1100; the rotation speed sensor 1100 is arranged on the power device 200, the rotation speed sensor 1100 is connected with the controller 1010, and the rotation speed sensor 1100 is used for measuring the rotation speed of the power device 200; the controller 1010 is configured to control an opening degree of the throttle valve 1090 according to the rotation speed of the power plant 200.
It should be noted that controller 1010 may also acquire an actual rotation speed corresponding to power plant 200 via rotation speed sensor 1100, and adjust and control the opening degree of throttle 1090 according to the actual rotation speed so that the actual rotation speed changes according to a preset requirement.
The rotation speed sensor 1100 is typically a sensor that converts the rotation speed of a rotating object into an electrical output.
On the basis of the above embodiment, a flame arrester 1110 is further arranged between the throttle 1090 and the power plant 200.
In particular implementations, a flame arrestor 1110 is also provided between throttle 1090 and power plant 200. Among other things, flame arrestor 1110 is a safety device used to prevent the spread of a flame of flammable gases and flammable liquid vapors. The device, which is typically installed in a conduit for the transport of combustible gases, or in a ventilated tank, to prevent the passage of propagating flames (deflagration or detonation), consists of a flame-retardant wick, a flame-retardant 1110 housing and accessories. Flame arrestors 1110 are also commonly used on pipes that carry flammable gases. If flammable gases are ignited, the gas flame will propagate throughout the piping network. To prevent this risk, a flame arrestor 1110 is also employed.
It should be further noted that the gas control apparatus 100 according to the embodiment of the present application further includes: and a supercharger 1120 provided between a mixer 1080 and a throttle valve 1090.
In addition to the above embodiment, a cooler 1130 may be further provided between supercharger 1120 and throttle valve 1090.
In a specific implementation process, the temperature of the pressurized mixed gas is increased, and in order to prevent the occurrence of equipment failure caused by high temperature of the mixed gas, the temperature of the compressed mixed gas needs to be reduced.
Fig. 5 is a schematic structural diagram of a gas control system provided in an embodiment of the present application, and as shown in fig. 5, an embodiment of the present application further provides a gas control system 10, including: the power device 200 is connected with the gas control device 100, and the power device 200 is used for burning mixed gas; the mixed gas comprises a first concentration gas and a second concentration gas, and the concentration of the first concentration gas is different from that of the second concentration gas.
In a specific implementation process, when the gas concentration is unstable, the gas control device 100 controls the injection amount of the gas with the first concentration and the injection amount of the gas with the second concentration so that the concentration of the mixed gas is within a combustion range, thereby ensuring that the power plant 200 can stably combust.
In summary, the embodiment of the present application provides a gas control device 100 and system, the device includes: a controller 1010, and a first conveyance unit 1020 and a second conveyance unit 1030 respectively connected to the controller 1010; the first delivery unit 1020 is used for delivering the first concentration fuel gas to the power plant 200; the second delivery unit 1030 is used for delivering a second concentration of fuel gas to the power plant 200; the controller 1010 is configured to control the gas injection amount of the first delivery unit 1020 and the gas injection amount of the second delivery unit 1030; wherein the concentration of the first concentration of fuel gas is different from the concentration of the second concentration of fuel gas. The embodiment of the application enables the controller 1010 to adjust the concentration of the mixed gas by controlling the delivery unit when the concentration of the low-concentration gas is unstable by arranging the first delivery unit 1020 and the second delivery unit 1030 to deliver two different concentrations of gas, so that the power device 200 can stably burn.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A gas control device, comprising:
the device comprises a controller, a first conveying unit and a second conveying unit, wherein the first conveying unit and the second conveying unit are respectively connected with the controller;
the first conveying unit is used for conveying the first concentration fuel gas to the power device;
the second conveying unit is used for conveying the fuel gas with the second concentration to the power device;
the controller is used for controlling the fuel gas injection amount of the first conveying unit and the fuel gas injection amount of the second conveying unit;
wherein the concentration of the first concentration of fuel gas is different from the concentration of the second concentration of fuel gas.
2. The gas control device of claim 1, further comprising a third delivery unit connected to the controller;
the third conveying unit is used for conveying air to the power device, and the controller is further used for controlling the air injection amount of the third conveying unit.
3. The gas control device according to claim 2, characterized in that said first delivery unit comprises a first duct and a first regulating member, said second delivery unit comprises a second duct and a second regulating member, and a third delivery unit comprises a third duct and a third regulating member;
the first adjusting component is arranged on the first pipeline, the first pipeline is used for conveying the fuel gas with the first concentration to the power device, and the first adjusting component is used for controlling the injection amount of the fuel gas with the first concentration;
the second adjusting part is arranged on a second pipeline, the second pipeline is used for conveying the fuel gas with the second concentration to the power device, and the second adjusting part is used for controlling the injection amount of the fuel gas with the second concentration;
the third adjusting part is arranged on a third pipeline, the third pipeline is used for conveying air to the power device, and the third adjusting part is used for controlling the injection amount of the air.
4. The gas control apparatus of claim 3, further comprising:
the first gas sensor is arranged on the first pipeline, and the second gas sensor is arranged on the second pipeline;
the first gas sensor and the second gas sensor are connected with the controller, the first gas sensor is used for detecting the concentration of the first concentration gas, and the second gas sensor is used for detecting the concentration of the second concentration gas.
5. The gas control apparatus of claim 1, further comprising: an oxygen sensor;
the oxygen sensor is arranged at the smoke exhaust position of the power device and is connected with the controller, and the oxygen sensor is used for detecting the actual air-fuel ratio of the mixed gas;
wherein, the mixed fuel gas comprises a first concentration fuel gas and a second concentration fuel gas.
6. The gas control apparatus of claim 2, further comprising: a mixer;
one end of the mixer is connected with the first conveying unit, the second conveying unit and the third conveying unit respectively, and the other end of the mixer is connected with the power device.
7. The gas control device of claim 6, wherein a throttle valve is further provided between the mixer and the power device; the throttle valve is connected with the controller, and the controller is also used for controlling the throttle valve so as to control the flow of the mixed gas.
8. The gas control apparatus of claim 7, further comprising: a rotational speed sensor;
the rotating speed sensor is arranged on the power device and connected with the controller, and the rotating speed sensor is used for measuring the rotating speed of the power device;
the controller is used for controlling the opening of the throttle valve according to the rotating speed of the power device.
9. The gas control device of claim 7, wherein a flame arrestor is further disposed between the throttle and the power plant.
10. A gas control system, comprising: the power device is connected with the gas control device according to any one of claims 1 to 9, and is used for combusting mixed gas;
the mixed gas comprises a first concentration gas and a second concentration gas, and the concentration of the first concentration gas is different from that of the second concentration gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920663953.4U CN210738684U (en) | 2019-05-10 | 2019-05-10 | Gas control device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920663953.4U CN210738684U (en) | 2019-05-10 | 2019-05-10 | Gas control device and system |
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| CN210738684U true CN210738684U (en) | 2020-06-12 |
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| CN201920663953.4U Expired - Fee Related CN210738684U (en) | 2019-05-10 | 2019-05-10 | Gas control device and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043379A (en) * | 2019-05-10 | 2019-07-23 | 重庆潍柴发动机有限公司 | A kind of controller for gas, system, method and controller |
| CN114576045A (en) * | 2022-05-07 | 2022-06-03 | 四川华气动力有限责任公司 | Pre-combustion chamber air inlet and mixing system of lean-burn technical engine |
-
2019
- 2019-05-10 CN CN201920663953.4U patent/CN210738684U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043379A (en) * | 2019-05-10 | 2019-07-23 | 重庆潍柴发动机有限公司 | A kind of controller for gas, system, method and controller |
| CN114576045A (en) * | 2022-05-07 | 2022-06-03 | 四川华气动力有限责任公司 | Pre-combustion chamber air inlet and mixing system of lean-burn technical engine |
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