CN112303627B - Gas distribution system and method - Google Patents
Gas distribution system and method Download PDFInfo
- Publication number
- CN112303627B CN112303627B CN201910712563.6A CN201910712563A CN112303627B CN 112303627 B CN112303627 B CN 112303627B CN 201910712563 A CN201910712563 A CN 201910712563A CN 112303627 B CN112303627 B CN 112303627B
- Authority
- CN
- China
- Prior art keywords
- gas
- oxygen content
- air
- gas distribution
- set value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 25
- 239000007789 gas Substances 0.000 claims abstract description 381
- 239000002737 fuel gas Substances 0.000 claims abstract description 137
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000001301 oxygen Substances 0.000 claims abstract description 126
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000011084 recovery Methods 0.000 claims description 30
- 239000000446 fuel Substances 0.000 claims description 19
- 238000005259 measurement Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The embodiment of the invention provides a gas distribution system, which comprises: the oxygen content detection unit is connected to a gas transmission port of a gas distribution end of the gas distribution system and is used for detecting whether the oxygen content of the mixed gas transmitted by the gas distribution end meets a set value or not; the control terminal is used for respectively adjusting the flow parameters of the fuel gas and the air delivered by the air distribution end until the oxygen content accords with the set value under the condition that the oxygen content does not accord with the set value according to the detection result of the oxygen content detection unit; and the gas distribution valve is arranged between the gas transmission port and the gas using port of the gas distribution end and used for controlling the on-off of a gas distribution pipeline, under the condition that the oxygen content does not accord with the set value, the flow parameters of the fuel gas and the air transmitted by the gas distribution end are respectively adjusted until the oxygen content accords with the set value, and the standard gas is provided to the gas using end, so that the quality of the mixed gas can be ensured.
Description
Technical Field
The invention relates to gas distribution of mixed gas, in particular to a gas distribution system and a method.
Background
The gas distribution system of the fuel gas at the present stage is simple, and generally, the air and the fuel gas are directly connected to the same pipeline for mixing, so that the uniform gas mixing cannot be ensured. Meanwhile, no safety measures are provided, once the gas end is used for backfire and the like, the gas distribution device and the like are easily detonated, and safety accidents occur.
Disclosure of Invention
The invention aims to provide a gas distribution system and a method, wherein the system detects the oxygen content of mixed gas before the gas distribution end of the gas distribution system provides the mixed gas to a gas using end so as to ensure that the mixed gas reaches accurate set concentration and the oxygen content of the mixed gas meets a set value, wherein the current mixed gas is judged to be substandard gas under the condition that the oxygen content of the mixed gas does not meet the set value, flow parameters of fuel gas and air delivered by the gas distribution end are respectively adjusted until the oxygen content meets the set value under the condition that the oxygen content does not meet the set value, and the substandard gas is provided to the gas using end so as to ensure the quality of the mixed gas.
In order to achieve the above object, an embodiment of the present invention provides a gas distribution system, including:
the oxygen content detection unit is connected to a gas transmission port of a gas distribution end of the gas distribution system and is used for detecting whether the oxygen content of the mixed gas transmitted by the gas distribution end meets a set value or not;
the control terminal is used for respectively adjusting the flow parameters of the fuel gas and the air delivered by the air distribution end until the oxygen content accords with the set value under the condition that the oxygen content does not accord with the set value according to the detection result of the oxygen content detection unit; and
and the gas distribution valve is arranged between the gas transmission port and the gas using port of the gas distribution end and used for controlling the on-off of the gas distribution pipeline.
Optionally, the control terminal is further configured to control a gas distribution valve to distribute the gas according to a detection result of the oxygen content detection unit;
the control terminal is further used for controlling the gas recovery outlet of the gas distribution valve to be communicated to convey the gas which does not reach the standard to the recovery processing end under the condition that the oxygen content does not meet the set value, and controlling the gas distribution outlet of the gas distribution valve to be communicated to convey the gas which reaches the standard to the gas using end under the condition that the oxygen content meets the set value.
Optionally, the gas distribution end includes:
a fuel gas cylinder;
the fuel gas pipeline control valve is connected with the fuel gas storage cylinder and is used for controlling the gas transmission flow of the fuel gas storage cylinder;
the fuel gas controller is used for controlling the opening of the fuel gas pipeline control valve according to the control terminal control instruction so as to adjust the gas transmission flow of the fuel gas storage bottle;
an air compressor;
the air pipeline control valve is connected with the air compressor and used for controlling the air transmission flow of the air compressor;
the air controller is used for controlling the opening of the air pipeline control valve according to the control terminal control instruction so as to adjust the air delivery flow of the air compressor; and
and the gas mixing device is respectively connected with the fuel gas pipeline control valve and the air pipeline control valve and is used for mixing the received fuel gas and the received air and conveying the mixed gas to the oxygen content detection unit through the gas distribution end gas transmission port.
Optionally, the gas distribution end further includes:
the fuel gas storage cylinder control valve is arranged on a connecting pipe between the fuel gas storage cylinder and the air compressor and is in a normally closed state; and
the air compressor control valve is arranged on a connecting pipe between the fuel gas storage cylinder and the air compressor and is in a normally closed state;
the gas distribution valve is further used for shunting gas according to the gas end gas using state, the control terminal controls the fuel gas storage cylinder to stop conveying fuel gas under the condition that the gas end stops using gas, controls the fuel gas storage cylinder control valve and the air compressor control valve to be opened, and controls the gas recovery outlet of the gas distribution valve to be conducted so that air conveyed by the air compressor can convey residual gas in a gas distribution end pipeline to the recovery processing end.
Optionally, in a case that the oxygen content does not meet the set value, adjusting the parameters of the fuel gas and the air flow delivered by the gas distribution end respectively until the oxygen content meets the set value comprises:
under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow rate of the gas distribution end are respectively adjusted to increase the fuel air flow rate and reduce the air flow rate until the oxygen content meets the set value; and
and in the case that the oxygen content is lower than the set value, adjusting parameters of fuel gas delivery and air flow of the gas distribution end respectively to reduce the fuel air flow and increase the air flow until the oxygen content meets the set value.
Optionally, the system further comprises:
and the flame arrester is arranged between the gas distribution valve and the gas using end and is used for preventing the gas using end from backfire.
Optionally, the system further comprises:
and the press machine is arranged between the gas distribution valve and the gas using end and is used for detecting and displaying the gas pressure of the gas distribution pipeline.
The embodiment of the invention also provides a gas distribution method, which comprises the following steps:
detecting whether the oxygen content of the mixed gas conveyed by the gas distribution end meets a set value or not;
according to the detection result, under the condition that the oxygen content does not accord with the set value, respectively adjusting the flow parameters of the fuel gas and the air conveyed by the air distribution end until the oxygen content accords with the set value; and
and adjusting the valve state of the gas distribution valve to control the on-off of the gas distribution pipeline, wherein the gas distribution valve is arranged between the gas transmission port of the gas distribution end and the gas using end.
Optionally, the method further includes:
shunting according to the detection result;
and under the condition that the oxygen content does not accord with the set value, controlling the gas recovery outlet of the gas distribution valve to be communicated so as to convey the substandard gas to a recovery processing end, and under the condition that the oxygen content accords with the set value, controlling the gas distribution outlet of the gas distribution valve to be communicated so as to convey the substandard gas to a gas using end.
Optionally, the gas distribution end includes:
a fuel gas cylinder;
the fuel gas pipeline control valve is connected with the fuel gas storage cylinder and is used for controlling the gas transmission flow of the fuel gas storage cylinder;
the fuel gas controller is used for controlling the opening of the fuel gas pipeline control valve according to the control terminal control instruction so as to adjust the gas transmission flow of the fuel gas storage bottle;
an air compressor;
the air pipeline control valve is connected with the air compressor and used for controlling the air transmission flow of the air compressor;
the air controller is used for controlling the opening of the air pipeline control valve according to the control terminal control instruction so as to adjust the air delivery flow of the air compressor; and
and the gas mixing device is respectively connected with the fuel gas pipeline control valve and the air pipeline control valve and is used for mixing the received fuel gas and air and conveying a mixed gas to the detection end through the gas distribution end gas transmission port to detect the oxygen content of the mixed gas.
Optionally, the method further includes:
shunting according to the gas using state of a gas using end;
the method comprises the steps of controlling a fuel gas storage cylinder to stop conveying fuel gas, controlling a fuel gas storage cylinder control valve and an air compressor control valve to open under the condition that gas supply is stopped at a gas supply end, controlling a gas recovery outlet of a gas distribution valve to be conducted so that residual gas in a gas distribution end pipeline is conveyed to a recovery processing end by air conveyed by the air compressor, setting the fuel gas storage cylinder control valve on a connecting pipe of the fuel gas storage cylinder and the air compressor and being in a normally closed state, and setting the air compressor control valve on a connecting pipe of the fuel gas storage cylinder and the air compressor and being in a normally closed state.
Optionally, in a case that the oxygen content does not meet the set value, adjusting the parameters of the fuel gas and the air flow delivered by the gas distribution end respectively until the oxygen content meets the set value comprises:
under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow rate of the gas distribution end are respectively adjusted to increase the fuel air flow rate and reduce the air flow rate until the oxygen content meets the set value; and
and in the case that the oxygen content is lower than the set value, adjusting parameters of fuel gas delivery and air flow of the gas distribution end respectively to reduce the fuel air flow and increase the air flow until the oxygen content meets the set value.
Optionally, the method further includes:
flashback at the gas using end is prevented by a flame arrestor disposed between the gas distribution valve and the gas using end.
Optionally, the method further includes:
the gas pressure of the gas distribution pipeline is detected and displayed through a pressure gauge, and the pressure gauge is arranged between the gas distribution valve and the gas utilization end.
According to the technical scheme, whether the oxygen content of the mixed gas conveyed by the gas transmission port of the gas distribution end of the gas distribution system meets a set value or not is detected through the oxygen content detection unit, the flow parameters of the fuel gas and the air conveyed by the gas distribution end are respectively adjusted until the oxygen content meets the set value by the control terminal under the condition that the oxygen content of the mixed gas does not meet the set value, the standard gas is provided to the gas utilization end, and the quality of the mixed gas is ensured.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention. In the drawings:
fig. 1 is a schematic diagram of a basic structure of an air distribution system provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a basic structure of a blowable gas distribution system provided by an embodiment of the invention;
fig. 3 is a schematic structural diagram of a gas distribution system provided in an embodiment of the present invention.
Description of the reference numerals
1. 2 air compressors of fuel gas bomb
3. Fuel gas pipeline control valve 4 air pipeline control valve
5. Fuel controller 6 air controller
7. 8 oxygen content detecting elements of gas-mixing device
9. Flame arrester of gas distribution valve 10
11. Pressure gauge 12 air compressor control valve
13. Fuel gas storage cylinder control valve
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic diagram illustrating a basic configuration of an air distribution system according to an embodiment of the present invention, and as shown in fig. 1, an air distribution end of the air distribution system may include a fuel gas cylinder 1, an air compressor 2, a fuel gas pipeline control valve 3, an air pipeline control valve 4, a fuel gas controller 5, an air controller 6, and an air mixing device 7; the fuel gas pipeline control valve 3 is connected with the fuel gas storage bottle 1 and is used for controlling the gas transmission flow of the fuel gas storage bottle 1, and the fuel gas controller 5 is used for controlling the opening of the fuel gas pipeline control valve 3 according to the control terminal control instruction so as to adjust the gas transmission flow of the fuel gas storage bottle 1; the air pipeline control valve 4 is connected with the air compressor 2 and used for controlling the air transmission flow of the air compressor 2, and the air controller 6 is used for controlling the opening of the air pipeline control valve 4 according to the control terminal control instruction so as to adjust the air transmission flow of the air compressor 2; the gas mixing device is respectively connected with a fuel gas pipeline control valve 3 and an air pipeline control valve 4 and is used for mixing the received fuel gas and air and conveying the mixed gas to an oxygen content detection unit 8 through a gas distribution end gas transmission port.
As shown in fig. 1, the gas distribution system may include an oxygen content detection unit 8, a control terminal, and a gas distribution valve, wherein the oxygen content detection unit 8 is connected to a gas transmission port of a gas distribution end of the gas distribution system, and detects whether an oxygen content of a mixed gas transmitted by the gas distribution end meets a set value. According to the detection result of the oxygen content detection unit 8, under the condition that the oxygen content of the mixed gas does not accord with the set value, the mixed gas currently conveyed by the gas distribution end is judged to be substandard gas, and the flow parameters of the fuel gas and the air conveyed by the gas distribution end are respectively adjusted until the oxygen content of the mixed gas obtained by mixing the fuel gas and the air accords with the set value.
According to the detection result of the oxygen content detection unit 8, under the condition that the oxygen content of the mixed gas delivered by the gas distribution end meets the set value, the control terminal judges that the mixed gas currently delivered by the gas distribution end is the standard-meeting gas, and adjusts the state of the gas distribution valve 9 to control the conduction of a gas distribution outlet of the gas distribution valve 9, namely, the conduction of a pipeline between the gas distribution end and the gas end is controlled, and the standard-meeting gas is provided for the gas end. And under the condition that the oxygen content of the mixed gas conveyed by the gas distribution end does not accord with a set value, the control terminal judges that the mixed gas currently conveyed by the gas distribution end is substandard gas, and adjusts the state of the gas distribution valve to control the gas recovery outlet of the gas distribution valve 9 to be communicated so as to convey the substandard gas to the recovery processing end.
Under the condition that the oxygen content does not meet the set value, respectively adjusting the parameters of the fuel gas delivery and the air flow delivered by the gas distribution end until the oxygen content meets the set value comprises the following steps:
under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow of the gas distribution end are respectively adjusted to increase the fuel gas flow and reduce the air flow until the oxygen content meets the set value; and
and in the case that the oxygen content is lower than the set value, adjusting parameters of fuel gas delivery and air flow of the gas distribution end respectively to reduce the fuel air flow and increase the air flow until the oxygen content meets the set value.
Exemplified with a formulation of 8.4% methane by volume in air:
starting an air compressor pipeline control valve 4, and starting an air compressor 2; opening a fuel gas pipeline control valve 3, and opening a fuel gas storage cylinder 1 (selecting a methane gas cylinder with gas purity of more than 98% in volume);
the fuel gas and the air respectively pass through the fuel controller 5 and the air controller 6 and then are mixed by the gas mixing device 7, the oxygen content detection unit 8 measures the mixed gas, when the volume of the mixed gas is 8.4% of methane in the air, the volume of the oxygen in the mixed gas is 19.236%, and the oxygen content measurement results have the following three conditions:
(1) If the oxygen content measurement result is higher than 19.236%, the control terminal modifies parameters of the fuel gas controller 5 and the air controller 6, increases the fuel gas flow, reduces the air flow until reaching 19.236%, during which, the gas distribution valve 9 (such as a three-way valve) closes the gas end passage, the gas recovery outlet of the gas distribution valve 9 is conducted to open the substandard gas treatment pipeline passage, and the substandard gas is sent to the treatment end; when the oxygen content measurement result reaches 19.236%, the gas distribution valve 9 closes the gas treatment pipeline passage which does not reach the standard, and opens the gas end passage;
(2) The oxygen content measurement result is equal to 19.236%, the gas distribution valve 9 closes the gas treatment pipeline passage which does not reach the standard, and opens the gas end passage;
(3) If the oxygen content measurement result is lower than 19.236%, the control terminal modifies parameters of the fuel gas controller 5 and the air controller 6, reduces the fuel gas flow, increases the air flow until reaching 19.236%, during the period, the gas distribution valve 9 closes the gas end passage, the gas recovery outlet of the gas distribution valve 9 is communicated to open the substandard gas treatment pipeline passage, and the substandard gas is sent to the treatment end; when the oxygen content measurement result reaches 19.236%, the gas distribution valve 9 closes the passage of the substandard gas treatment pipeline and opens the gas end passage.
Fig. 2 shows a schematic diagram of a basic structure of a blowable air distribution system, as shown in fig. 2, the system may further include an air compressor control valve 12 and a fuel cylinder control valve 13, wherein a fuel gas pipeline connected to the fuel cylinder 1 is led out from an air pipeline at the air compressor 2, the air compressor control valve 12 is disposed at a connecting pipe between the air compressor 2 and the fuel cylinder 1 near an air compressor end, the fuel cylinder control valve 13 is disposed at a connecting pipe between the air compressor 2 and the fuel cylinder 1 near a fuel cylinder end, and the air compressor control valve 12 and the fuel cylinder control valve 13 are in a normally closed state. Under the condition that the gas end is used for stopping gas, the control device controls the fuel gas storage cylinder 1 to stop conveying fuel gas, controls the normally closed air compressor control valve 12 and the fuel gas storage cylinder control valve 13 to be opened, namely, the fuel gas pipeline is connected and communicated with the air compressor, and controls the gas recovery outlet of the gas distribution valve 9 to be communicated, so that the air conveyed by the air compressor comprehensively sweeps a gas distribution system, and residual mixed gas is swept to the recovery processing end.
Fig. 3 shows a schematic structural diagram of a gas distribution system according to an embodiment of the present invention, as shown in fig. 3, the gas distribution system has the above-mentioned oxygen content detection function and the above-mentioned purging function, specifically, during the use period of the gas distribution system, the oxygen content detection unit 8 detects whether the oxygen content of the mixed gas delivered by the gas delivery port of the gas distribution end meets a set value in real time, and the control terminal is configured to adjust flow parameters of the fuel gas and the air delivered by the gas distribution end respectively until the oxygen content meets the set value according to the detection result of the oxygen content detection unit 8 when the oxygen content of the mixed gas does not meet the set value, where the specific implementation manner is as follows:
starting an air compressor pipeline control valve 4, starting an air compressor 2, starting a fuel gas pipeline control valve 3 and starting a fuel gas storage cylinder 1;
after passing through the fuel controller 5 and the air controller 6, the gas and the air are mixed by the gas mixing device 7, the oxygen content detecting unit 8 measures the mixed gas, and the oxygen content measurement results have the following three conditions:
(1) If the oxygen content measurement result is higher than a set value (an oxygen content value obtained after the volume conversion of the fuel gas, which is hereinafter referred to as a set value), the control terminal modifies parameters of the fuel controller 5 and the air controller 6, increases the fuel gas flow, and reduces the air flow until the oxygen content measurement result reaches the set value, during the modification, the gas distribution valve 9 closes a gas end passage, a gas recovery outlet of the gas distribution valve 9 is conducted to open an substandard gas treatment pipeline passage, and substandard gas is sent to a treatment end; when the oxygen content measurement result reaches a set value, the gas distribution valve 9 closes the passageway of the substandard gas treatment pipeline and opens the gas end passageway;
(2) When the oxygen content measurement result is equal to a set value, the gas distribution valve 9 closes the passageway of the substandard gas treatment pipeline and opens the gas end passageway;
(3) If the oxygen content measurement result is lower than the set value, the control terminal modifies parameters of the fuel controller 5 and the air controller 6, reduces the fuel gas flow and increases the air flow until the oxygen content measurement result reaches the set value, during the period, the gas distribution valve 9 closes the gas end passage, a gas recovery outlet of the gas distribution valve 9 is communicated to open the passage of the substandard gas treatment pipeline, the substandard gas is sent to a treatment end, and the gas end passage is closed; when the oxygen content measurement result reaches a set value, the gas distribution valve 9 closes the gas treatment pipeline passage which does not reach the standard, and opens the gas end passage.
A connecting pipe is led out from an air pipeline at the air distribution end and connected with a fuel gas pipeline, an air compressor control valve 12 and a fuel gas storage bottle control valve 13 are arranged on the connecting pipe, under the condition that the air consumption end stops consuming the gas, a control device controls the fuel gas storage bottle 1 to stop supplying the fuel gas, the normally closed air compressor control valve 12 and the fuel gas storage bottle control valve 13 are controlled to be opened, namely, the fuel gas pipeline is connected and communicated with the air compressor, and a gas recovery outlet of a gas distribution valve 9 is controlled to be communicated, so that the air supplied by the air compressor comprehensively sweeps the air distribution system, and the residual mixed gas is swept to a recovery processing end.
As shown in fig. 3, the system may further comprise a flame arrester 10 and a press 11, wherein the flame arrester 10 may be disposed between the distribution valve 9 and the gas end to prevent safety accidents caused by backfiring of the gas end and reduce loss and casualties. This pressure gauge 11 can set up the distribution valve with use between the gas end, can show the real pressure of distribution system after a series of processes, look up when being convenient for use gas, prevent because with too big a series of unnecessary troubles and accidents that cause of gas end pressure differential.
The embodiment of the invention also provides a gas distribution method, and particularly detects whether the oxygen content of the mixed gas conveyed by the gas distribution end meets a set value or not in real time in the using process of the gas distribution system, and respectively adjusts the flow parameters of the fuel gas and the air conveyed by the gas distribution end until the oxygen content meets the set value under the condition that the oxygen content of the mixed gas does not meet the set value according to the detection result. Wherein, when the oxygen content does not meet the set value, adjusting the parameters of the fuel gas and the air flow delivered by the gas distribution end respectively until the oxygen content meets the set value comprises: under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow of the gas distribution end are respectively adjusted to increase the fuel gas flow and reduce the air flow until the oxygen content meets the set value; and in the case that the oxygen content is lower than the set value, adjusting the parameters of the gas distribution end for conveying the fuel gas and the air flow respectively to reduce the fuel gas flow and increase the air flow until the oxygen content meets the set value. The gas distribution can be performed according to the detection result, wherein, when the oxygen content of the mixed gas does not meet the set value, the gas recovery outlet of the gas distribution valve 9 is controlled to be communicated to convey the gas which does not meet the standard to the recovery processing end, and when the oxygen content meets the set value, the gas distribution outlet of the gas distribution valve 9 is controlled to be communicated to convey the gas which meets the standard to the gas using end.
The gas distribution method can also carry out flow distribution according to the gas utilization state of the gas utilization end, wherein under the condition that the gas utilization end stops using gas, the fuel gas storage cylinder 1 is controlled to stop conveying fuel gas, the fuel gas storage cylinder control valve 13 and the air compressor control valve 12 are controlled to be opened, and the gas recovery outlet of the gas distribution valve 9 is controlled to be conducted so that residual gas in a gas distribution end pipeline is conveyed to a recovery processing end by air conveyed by the air compressor 2, so that the gas distribution system is completely purged. Can also prevent the incident that causes with gas end tempering through the spark arrester 10 that sets up between distribution valve 9 and with the gas end, reduce loss and casualties, show the real pressure of distribution system after a series of flows according to pressure gauge 11 that sets up between distribution valve 9 and with the gas end, look up when being convenient for with gas, prevent because too big a series of unnecessary troubles and accidents that cause with gas end pressure difference.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (12)
1. A gas distribution system, the system comprising:
the oxygen content detection unit is connected with a gas transmission port of a gas distribution end of the gas distribution system and used for detecting whether the oxygen content of the mixed gas transmitted by the gas distribution end meets a set value or not;
the control terminal is used for respectively adjusting the flow parameters of the fuel gas and the air delivered by the air distribution end until the oxygen content accords with the set value under the condition that the oxygen content does not accord with the set value according to the detection result of the oxygen content detection unit; and
the gas distribution valve is arranged between the gas transmission port and the gas using port of the gas distribution end and used for controlling the on-off of a gas distribution pipeline;
the control terminal is further used for controlling the gas distribution valve to distribute the gas according to the detection result of the oxygen content detection unit;
the control terminal is further used for controlling the gas recovery outlet of the gas distribution valve to be communicated to convey substandard gas to a recovery processing end under the condition that the oxygen content does not accord with the set value, and controlling the gas distribution outlet of the gas distribution valve to be communicated to convey substandard gas to a gas using end under the condition that the oxygen content accords with the set value, wherein the condition that the oxygen content does not accord with the set value comprises the condition that the oxygen content is larger than the set value or smaller than the set value.
2. The system of claim 1, wherein the gas distribution end comprises:
a fuel gas cylinder;
the fuel gas pipeline control valve is connected with the fuel gas storage cylinder and is used for controlling the gas transmission flow of the fuel gas storage cylinder;
the fuel gas controller is used for controlling the opening of the fuel gas pipeline control valve according to the control terminal control instruction so as to adjust the gas transmission flow of the fuel gas storage bottle;
an air compressor;
the air pipeline control valve is connected with the air compressor and used for controlling the air transmission flow of the air compressor;
the air controller is used for controlling the opening of the air pipeline control valve according to the control terminal control instruction so as to adjust the air delivery flow of the air compressor; and
and the gas mixing device is respectively connected with the fuel gas pipeline control valve and the air pipeline control valve and is used for mixing the received fuel gas and the received air and conveying the mixed gas to the oxygen content detection unit through the gas distribution end gas transmission port.
3. The system of claim 2, wherein the gas distribution end further comprises:
the fuel gas storage cylinder control valve is arranged on a connecting pipe between the fuel gas storage cylinder and the air compressor and is in a normally closed state; and
the air compressor control valve is arranged on a connecting pipe between the fuel gas storage cylinder and the air compressor and is in a normally closed state;
the gas distribution valve is further used for shunting gas according to a gas end gas using state, the control terminal controls the fuel gas storage cylinder to stop conveying fuel gas under the condition that the gas end gas using state stops using gas, controls the fuel gas storage cylinder control valve and the air compressor control valve to be opened, and controls a gas recovery outlet of the gas distribution valve to be communicated so that air conveyed by the air compressor can convey residual gas in a gas distribution end pipeline to a recovery processing end.
4. The system of claim 1, wherein in the event that the oxygen content does not meet the set point, adjusting the gas distribution end delivery fuel gas and air flow parameters, respectively, until the oxygen content meets the set point comprises:
under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow rate of the gas distribution end are respectively adjusted to increase the fuel air flow rate and reduce the air flow rate until the oxygen content meets the set value; and
and in the case that the oxygen content is lower than the set value, adjusting parameters of fuel gas delivery and air flow of the gas distribution end respectively to reduce the fuel air flow and increase the air flow until the oxygen content meets the set value.
5. The system of claim 1, further comprising:
and the flame arrester is arranged between the gas distribution valve and the gas using end and is used for preventing the gas using end from backfire.
6. The system of claim 1, further comprising:
and the press machine is arranged between the gas distribution valve and the gas using end and is used for detecting and displaying the gas pressure of the gas distribution pipeline.
7. A method of distributing gas, the method comprising:
detecting whether the oxygen content of the mixed gas conveyed by the gas distribution end meets a set value or not;
according to the detection result, under the condition that the oxygen content does not accord with the set value, flow parameters of fuel gas and air delivered by the air distribution end are respectively adjusted until the oxygen content accords with the set value; and
adjusting the valve state of a gas distribution valve to control the on-off of a gas distribution pipeline, wherein the gas distribution valve is arranged between a gas transmission port and a gas using port of the gas distribution end;
wherein, the method also comprises:
shunting according to the detection result;
and under the condition that the oxygen content does not accord with the set value, controlling the conduction of a gas recovery outlet of the gas distribution valve to convey substandard gas to a recovery processing end, and under the condition that the oxygen content accords with the set value, controlling the conduction of a gas distribution outlet of the gas distribution valve to convey the substandard gas to a gas using end, wherein the condition that the oxygen content does not accord with the set value comprises the condition that the oxygen content is more than the set value or less than the set value.
8. The method of claim 7, wherein the gas distribution end comprises:
a fuel gas cylinder;
the fuel gas pipeline control valve is connected with the fuel gas storage cylinder and is used for controlling the gas transmission flow of the fuel gas storage cylinder;
the fuel gas controller is used for controlling the opening of the fuel gas pipeline control valve according to the control terminal control instruction so as to adjust the gas transmission flow of the fuel gas storage bottle;
an air compressor;
the air pipeline control valve is connected with the air compressor and is used for controlling the air delivery flow of the air compressor;
the air controller is used for controlling the opening of the air pipeline control valve according to the control terminal control instruction so as to adjust the air delivery flow of the air compressor; and
and the gas mixing device is respectively connected with the fuel gas pipeline control valve and the air pipeline control valve and is used for mixing the received fuel gas and the air and conveying the mixed gas to the detection end through the gas distribution end gas transmission port to detect the oxygen content condition of the mixed gas.
9. The method of claim 8, further comprising:
shunting according to the gas utilization state of a gas utilization end;
the method comprises the steps of controlling a fuel gas storage cylinder to stop conveying fuel gas, controlling a fuel gas storage cylinder control valve and an air compressor control valve to open under the condition that gas supply is stopped at a gas supply end, controlling a gas recovery outlet of a gas distribution valve to be conducted so that residual gas in a gas distribution end pipeline is conveyed to a recovery processing end by air conveyed by the air compressor, setting the fuel gas storage cylinder control valve on a connecting pipe of the fuel gas storage cylinder and the air compressor and being in a normally closed state, and setting the air compressor control valve on a connecting pipe of the fuel gas storage cylinder and the air compressor and being in a normally closed state.
10. The method of claim 7 wherein in the event that the oxygen content does not meet the set point, adjusting the port fuel gas delivery and air flow parameters separately until the oxygen content meets the set point comprises:
under the condition that the oxygen content is higher than the set value, parameters of fuel gas delivery and air flow of the gas distribution end are respectively adjusted to increase the fuel gas flow and reduce the air flow until the oxygen content meets the set value; and
in the case where the oxygen content is below the set point, the gas distribution end delivery fuel gas and air flow parameters are adjusted separately to reduce fuel gas flow and increase air flow until the oxygen content meets the set point.
11. The method of claim 7, further comprising:
flashback at the gas using end is prevented by a flame arrestor disposed between the gas distribution valve and the gas using end.
12. The method of claim 7, further comprising:
and detecting and displaying the gas pressure of the gas distribution pipeline through a pressure gauge, wherein the pressure gauge is arranged between the gas distribution valve and the gas using end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712563.6A CN112303627B (en) | 2019-08-02 | 2019-08-02 | Gas distribution system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712563.6A CN112303627B (en) | 2019-08-02 | 2019-08-02 | Gas distribution system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112303627A CN112303627A (en) | 2021-02-02 |
| CN112303627B true CN112303627B (en) | 2023-02-17 |
Family
ID=74486614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910712563.6A Active CN112303627B (en) | 2019-08-02 | 2019-08-02 | Gas distribution system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112303627B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543389U (en) * | 2009-11-27 | 2010-08-11 | 天津市华迈燃气技术发展有限公司 | Follow-up gas-air mixing device |
| CN105925751A (en) * | 2016-06-15 | 2016-09-07 | 江苏永钢集团有限公司 | Safety converter gas recycling system |
| CN206563294U (en) * | 2017-03-06 | 2017-10-17 | 上海速焰燃烧设备有限公司 | A kind of preposition oxygen amount is shown and control combustion system |
| CN109157970A (en) * | 2018-11-08 | 2019-01-08 | 青海盐湖工业股份有限公司 | The tail gas of a kind of pair of vinyl-chloride-containing carries out the device of reclaiming clean |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101553446B1 (en) * | 2013-10-30 | 2015-09-15 | 현대제철 주식회사 | Fuel cell system with excellent eliminating effect on freezing material throughout air purging and method of controlling the same |
-
2019
- 2019-08-02 CN CN201910712563.6A patent/CN112303627B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201543389U (en) * | 2009-11-27 | 2010-08-11 | 天津市华迈燃气技术发展有限公司 | Follow-up gas-air mixing device |
| CN105925751A (en) * | 2016-06-15 | 2016-09-07 | 江苏永钢集团有限公司 | Safety converter gas recycling system |
| CN206563294U (en) * | 2017-03-06 | 2017-10-17 | 上海速焰燃烧设备有限公司 | A kind of preposition oxygen amount is shown and control combustion system |
| CN109157970A (en) * | 2018-11-08 | 2019-01-08 | 青海盐湖工业股份有限公司 | The tail gas of a kind of pair of vinyl-chloride-containing carries out the device of reclaiming clean |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112303627A (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113931754A (en) | Gaseous fuel supply system | |
| CN106556151B (en) | A kind of fuel gas of fuel gas water heater automatic pressure unit and method | |
| WO2022247108A1 (en) | Intrinsically safe high-purity and high-pressure hydrogen environment material compatibility testing system and method | |
| CN112389277A (en) | Fuel cell vehicle and hydrogen safety control method, device and system thereof | |
| WO2024103651A1 (en) | Gas mixing device and method and semiconductor process system | |
| CN112303627B (en) | Gas distribution system and method | |
| CN205964802U (en) | Active fire protection system | |
| CN213900710U (en) | Gas discharging cabinet with hydrogen detection and analysis functions | |
| JP2017207272A (en) | Mixture gas manufacturing device | |
| CN111258345B (en) | Gas concentration stabilizing device and control method thereof | |
| CN112295425A (en) | Purgable gas distribution system and method | |
| CN201297647Y (en) | Pipeline pressure control system for combustible gas | |
| CN213266245U (en) | Distribution system of tin bath nitrogen-hydrogen protective gas | |
| CN211780174U (en) | Hydrogen fills dress device | |
| CN107961683A (en) | Full-automatic protection gas matching system and its method | |
| CN211098447U (en) | Intelligent automatic hydrogen-nitrogen proportioning device | |
| CN210965028U (en) | Automatic device and reaction system that add of anti-oxidant | |
| KR20040006289A (en) | Hydrogen gas filling fail safe system for a hybride vehicle | |
| CN208102950U (en) | A kind of N-butyl raw material finished product storage tank nitrogen seal device | |
| CN219673972U (en) | Novel gas busbar and novel gas busbar system | |
| CN217237949U (en) | System for measuring oxygen content in return of top diffused gas of coking tank | |
| CN216389464U (en) | Vehicle-mounted hydrogen supply system emptying device and vehicle-mounted hydrogen supply system | |
| CN217636759U (en) | Ignition furnace with protection system | |
| CN203490065U (en) | Stop valve rigidity inspection system | |
| CN219912689U (en) | Flammable gas diffusing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230113 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: CHINA PETROLEUM & CHEMICAL Corp. Applicant after: Sinopec Safety Engineering Research Institute Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant before: CHINA PETROLEUM & CHEMICAL Corp. Applicant before: SINOPEC Research Institute OF SAFETY ENGINEERING |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |