CN108006690B - Associated gas combustion system and method for vertical heating furnace of oil field - Google Patents
Associated gas combustion system and method for vertical heating furnace of oil field Download PDFInfo
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- CN108006690B CN108006690B CN201711486927.0A CN201711486927A CN108006690B CN 108006690 B CN108006690 B CN 108006690B CN 201711486927 A CN201711486927 A CN 201711486927A CN 108006690 B CN108006690 B CN 108006690B
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- vertical heating
- regulating valve
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 40
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000000007 visual effect Effects 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 9
- 239000002737 fuel gas Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 239000010779 crude oil Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2400/00—Pretreatment and supply of gaseous fuel
- F23K2400/10—Pretreatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2400/00—Pretreatment and supply of gaseous fuel
- F23K2400/20—Supply line arrangements
- F23K2400/201—Control devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention relates to a combustion system and a method for associated gas of an oilfield vertical heating furnace, wherein the system comprises a vertical heating furnace, a control cabinet and an integrated sledge body, wherein an electric regulating valve is arranged in the integrated sledge body, one end of the electric regulating valve is connected with a gas inlet outside the integrated sledge body, the other end of the electric regulating valve is connected with a detection device, and the detection device is connected with a negative pressure injection type combustor in the vertical heating furnace; the detection device consists of a first detection channel and a second detection channel which are connected in parallel, wherein the first detection channel is sequentially connected with a first stop valve, a first electromagnetic valve and a second stop valve; the second detection channel is sequentially connected with a third stop valve, a second electromagnetic valve and a fourth stop valve; the electric regulating valve, the first electromagnetic valve and the second electromagnetic valve are all electrically connected with the control cabinet. The invention is safe and reliable, has high self-control degree and strong fuel adaptability, is convenient for skid installation and can reduce the working intensity of the attended personnel.
Description
Technical Field
The invention relates to a process integration, self-control and combustion method of an oilfield associated gas combustion system, which is particularly suitable for oilfield associated gas combustion systems and methods of oilfield crude oil vertical heating furnaces.
Background
The heating furnaces in the well group oil drawing point, the crude oil pressurizing point and the production guarantee point of the oil field production station mainly adopt small vertical heating furnaces, the forms are mainly two types of normal pressure vertical water jacket furnaces (crude oil and hot water) and vertical hot water furnaces, the heating furnaces are used for heating crude oil, preserving heat of equipment, heating buildings and the like, the thermal power is different from 70kW to 300kW, the combustion system mainly adopts an injection type combustor, and the fuel of the fuel gas heating furnace adopts purified oil field associated gas.
The vertical small-sized heating furnace adopts an injection burner, and is mainly based on the following reasons: most of oil and gas fields are positioned in the border area of mountain areas, the matched facilities such as electricity consumption and the like are imperfect, power supply is not needed, and the automatic control can be performed safely and normally without electricity consumption; the injection type burner utilizes the gas pressure to inject air, so as to realize air premixing and realize the functions of automatic control, load regulation, flameout protection and the like of a gas system. The faults are few under the condition of gas quality assurance; the maintenance is simple and convenient. But the degree of self-control is not high, people are required to watch, and the whole equipment is inconvenient to install.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a associated gas combustion system and method which are safe and reliable, have automatic protection of gas leakage, high self-control degree, strong fuel adaptability, are convenient for sledge installation and are unattended and suitable for a vertical heating furnace of an oil-gas field station.
The invention aims to achieve the purpose in this way, and relates to a combustion system and a method for associated gas of an oilfield vertical heating furnace, which are characterized in that: the device comprises a vertical heating furnace, a control cabinet and an integrated sledge body, wherein an electric regulating valve is arranged in the integrated sledge body, one end of the electric regulating valve is connected with a fuel gas inlet outside the integrated sledge body, and the other end of the electric regulating valve is connected with a detection device; the detection device is connected with a negative pressure injection type burner in the vertical heating furnace through a pipeline; the detection device consists of a first detection channel and a second detection channel which are connected in parallel, wherein the first detection channel is sequentially connected with a first stop valve, a first electromagnetic valve and a second stop valve; the second detection channel is sequentially connected with a third stop valve, a second electromagnetic valve and a fourth stop valve; the electric regulating valve, the first electromagnetic valve and the second electromagnetic valve are all electrically connected with the control cabinet.
Further, a ball valve is further arranged outside the integrated sledge body, and a first pressure gauge, a filter, a pressure regulating valve, a second pressure gauge and a flame arrester are further arranged inside the integrated sledge body; a ball valve, a first pressure gauge, a filter and a pressure regulating valve are sequentially connected between the fuel gas inlet and the electric regulating valve; and a second pressure gauge and a flame arrester are sequentially connected between the detection device and the negative pressure injection type burner.
Further, the control cabinet is controlled by a remote controller in a wireless mode.
Further, a water temperature sensor, a flame probe and an electronic igniter are also arranged in the vertical heating furnace, wherein the water temperature sensor, the flame probe and the electronic igniter are electrically connected with the control cabinet.
Furthermore, the control cabinet is also electrically connected with an audible and visual alarm device.
Further, the control cabinet is also provided with a water temperature indicator lamp and a fault indicator lamp.
A working method of an associated gas combustion system and method of an oilfield vertical heating furnace is characterized in that: oil field associated gas enters a filter through a gas main pipe, impurities are removed from the gas through a ball valve, and partial water is separated; then, the gas enters a pressure regulating valve to regulate the pressure of the gas to be within 100 kPa; then the electric regulating valve is used for regulating the associated air flow according to the load of the heating furnace; the gas with proper flow passes through the first electromagnetic valve, so that whether the system leaks gas, whether the gas pressure is stable or not and whether the hearth flameout or not is failed can be detected, the electromagnetic valve acts, and the audible and visual alarm device works; finally, the associated gas enters an injection type burner of the vertical heating furnace through a pipeline flame arrester, so that the normal combustion of the system is ensured; wherein the electric regulating valve regulates the accompanying air flow according to the load of the heating furnace; the first electromagnetic valve detects whether the system leaks air, whether the gas pressure is stable or not, whether the hearth is flameout or not, and the first electromagnetic valve can be closed and the audible and visual alarm device can work when the hearth is in failure.
The invention is characterized in that: the device is safe and reliable, the whole device can adjust the air supply flow according to the feedback of the detector, and the air supply is automatically stopped under the conditions of air leakage, unstable gas pressure, flameout of the hearth and other faults. The whole associated gas treatment device is integrated in the box body, so that the automatic control degree is high, the fuel adaptability is strong, and the skid is convenient to install. Remote ignition is controlled by the remote controller, and the alarm control is performed by stopping working when faults occur, so that manpower consumption is reduced, and unattended operation can be realized. The detection pipeline in the device is divided into two paths, and when one path fails and cannot be opened to cause that air cannot be supplied, the other path can be automatically opened, so that the whole stability is strong.
Drawings
The invention is further described below with reference to the drawings of the embodiments.
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: 1. a vertical heating furnace; 2. a control cabinet; 3. an integrated sledge body; 4. a ball valve; 5. A first pressure gauge; 6. a filter; 7. a pressure regulating valve; 8. an electric control valve; 9. a first stop valve; 10. a first electromagnetic valve; 11. a second shut-off valve; 12. a second pressure gauge; 13. a flame arrester; 14. a third stop valve; 15. a second electromagnetic valve; 16. a fourth shut-off valve; 17. a water temperature sensor; 18. a flame probe; 19. an electronic ignition gun; 20. a negative pressure injection burner; 21. an audible and visual alarm; 22. and a remote controller.
Detailed Description
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way.
In the description of the present invention, it should be understood that the terms "center," "middle," "position," "left," "right," "outer," "inner," "axial," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The following detailed description, structural features and functions of the present invention are provided with reference to the accompanying drawings and examples in order to further illustrate the technical means and effects of the present invention to achieve the predetermined objects.
[ example 1 ]
As shown in fig. 1, the device comprises a vertical heating furnace 1, a control cabinet 2 and an integrated sledge body 3, wherein an electric regulating valve 8 is arranged in the integrated sledge body 3, one end of the electric regulating valve 8 is connected with a fuel gas inlet outside the integrated sledge body 3, the other end of the electric regulating valve 8 is connected with a detection device, and the detection device is connected with a negative pressure injection burner 20 in the vertical heating furnace 1; the detection device consists of a first detection channel and a second detection channel which are connected in parallel, wherein the first detection channel is sequentially connected with a first stop valve 9, a first electromagnetic valve 10 and a second stop valve 11; the second detection channel is sequentially connected with a third stop valve 14, a second electromagnetic valve 15 and a fourth stop valve 16; the electric regulating valve 8, the first electromagnetic valve 10 and the second electromagnetic valve 15 are all electrically connected with the control cabinet 2.
The electric regulating valve 8 can regulate the associated air flow according to the load of the heating furnace. The first electromagnetic valve 10 and the second electromagnetic valve 15 control whether to supply air or not, and detect faults such as whether the system leaks air, whether the gas pressure is stable or not, whether the hearth is flameout or not, and the like. When the whole device fails, the first electromagnetic valve 10 is closed; when the whole device is normal, but the first electromagnetic valve 10 fails and cannot supply air, the second electromagnetic valve 15 automatically opens to supply air, so that the flame is ensured to burn normally. The four stop valves are in a normally open state, and when one electromagnetic valve needs to be replaced, the corresponding stop valves at the two ends are closed for maintenance operation.
[ example 2 ]
As shown in fig. 1, a ball valve 4 is further installed outside the integrated sledge body 3, and a first pressure gauge 5, a filter 6, a pressure regulating valve 7, a second pressure gauge 12 and a flame arrester 16 are also installed inside the integrated sledge body 3; a ball valve 4, a first pressure gauge 5, a filter 6 and a pressure regulating valve 7 are sequentially connected between the fuel gas inlet and the electric regulating valve 8; a second pressure gauge 12 and a flame arrester 16 are sequentially connected between the detection device and the negative pressure injection type burner 20.
Because associated gas is a byproduct of the oil recovery process, its pressure is unstable and tends to contain a large amount of moisture, it is necessary to treat it before combustion can take place. Removing impurities from the fuel gas through a ball valve 4, and separating out partial water; then enters a pressure regulating valve 7 to regulate the pressure of the fuel gas to be within 100 kPa. Flame arrestor 20 prevents fire from being caused by backfire of the fire along the gas pipeline. The pressure gauge can display the gas pressure, so that the observation by the on-duty personnel is facilitated.
[ example 3 ]
As shown in fig. 1, the control cabinet 2 is wirelessly controlled by a remote controller 22. The vertical heating furnace is internally provided with a water temperature sensor 17, a flame probe 18 and an electronic igniter 19, and the water temperature sensor 17, the flame probe 18 and the electronic igniter 19 are electrically connected with the control cabinet 2. The control cabinet 2 is also electrically connected with an audible and visual alarm device 21. The control cabinet 2 is also provided with a water temperature indicator lamp and a fault indicator lamp.
Remote ignition can be achieved by controlling the electronic igniter 19 via the remote control 22. The water temperature sensor 17 is interlocked with the regulating valve 8 through the control cabinet 2, automatically regulates the gas supply according to the set water supply temperature, regulates the flame size and ensures the water supply temperature to be constant. When the water temperature exceeds the temperature, the audible and visual alarm device 21 gives an alarm, and the regulating valve 7 is regulated to the minimum opening. And after the fault is manually removed, the operation is performed according to a set program.
After ignition, if ignition is unsuccessful, flame detector probe 18 does not detect a flame, first solenoid valve 10 is closed and audible and visual alarm 21 is alerted, the system is reset by manual field inspection and troubleshooting. Starting the ignition program again, pressing the ignition button of the remote controller 22, and sending a delay 15-minute instruction by the control cabinet, igniting by the electronic ignition gun 19 after the hearth is naturally ventilated for 15 minutes, and controlling the leakage detection electromagnetic valve 1 to supply air to ignite flame.
In summary, the oilfield associated gas enters the filter 6 through the ball valve 4 through the gas main pipe, impurities are removed from the gas, and partial water is separated; then the gas enters a pressure regulating valve 7 to regulate the pressure of the gas to be within 100 kPa; then the electric regulating valve 7 is used for regulating the associated air flow according to the load of the heating furnace; the gas with proper flow passes through the first electromagnetic valve 10, so that faults such as whether the system leaks gas, whether the gas pressure is stable, whether the hearth is flameout or not can be detected, the electromagnetic valve can be operated, and the audible and visual alarm device works; and finally, the associated gas finally enters an injection type burner of the vertical heating furnace through a pipeline flame arrester, so that the normal combustion of the system is ensured. Wherein the electric regulating valve 7 can regulate the associated air flow according to the load of the heating furnace; the first electromagnetic valve 10 can detect faults such as whether the system leaks air, whether the gas pressure is stable, whether the hearth is flameout or not, and the like, and the first electromagnetic valve 10 can be closed and the audible and visual alarm device can work when the faults occur.
When the ignition is ready, whether ignition conditions (gas pressure, water level, manual valve state and ventilation for 15 minutes) meet requirements or not is manually confirmed, after all conditions are normal, an ignition button is pressed down by a remote controller 22, a time relay in a control cabinet 2 controls a first electromagnetic valve 10 to open for air supply, an electronic ignition gun 19 ignites, ignition is performed for 5 seconds (time is adjustable), ignition is stopped after 5 seconds, ignition is successful, and a normal indicator lamp is lighted. If the ignition is unsuccessful, the flame probe 18 does not detect a flame, the first solenoid valve 10 is closed and alerted, the fault indicator lights up, the fault is checked manually on site and removed, and the system is reset. Starting the ignition program again, pressing the ignition button, the control cabinet 2 needs to send out a delay 15-minute instruction, and after the hearth is naturally ventilated for 15 minutes, the electronic ignition gun 19 outputs high-voltage electricity to the ignition electrode to automatically ignite, and simultaneously controls the first electromagnetic valve 10 to supply air to ignite flame.
When the first electromagnetic valve 10 fails and cannot supply air, the audible and visual alarm 21 alarms, and the second electromagnetic valve 15 automatically opens the air supply.
When the electromagnetic valve needs to be replaced, the corresponding stop valves at the two ends are closed, and maintenance operation is performed.
The foregoing is a further description of the invention in connection with specific preferred embodiments, and it is not intended that the invention be limited to those descriptions. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (5)
1. The utility model provides an oil field vertical heating furnace associated gas combustion system, includes vertical heating furnace (1), switch board (2) and integrated sledge body (3), its characterized in that: an electric regulating valve (8) is arranged in the integrated sledge body (3), one end of the electric regulating valve (8) is connected with a fuel gas inlet outside the integrated sledge body (3), the other end of the electric regulating valve (8) is connected with a detection device, and the detection device is connected with a negative pressure injection type combustor (20) in the vertical heating furnace (1) through a pipeline; the detection device consists of a first detection channel and a second detection channel which are connected in parallel, wherein the first detection channel is sequentially connected with a first stop valve (9), a first electromagnetic valve (10) and a second stop valve (11); the second detection channel is sequentially connected with a third stop valve (14), a second electromagnetic valve (15) and a fourth stop valve (16); the electric regulating valve (8), the first electromagnetic valve (10) and the second electromagnetic valve (15) are electrically connected with the control cabinet (2);
the integrated sledge body (3) is internally provided with a first pressure gauge (5), a filter (6), a pressure regulating valve (7), a second pressure gauge (12) and a flame arrester (13); a ball valve (4), a first pressure gauge (5), a filter (6) and a pressure regulating valve (7) are sequentially connected between the gas inlet and the electric regulating valve (8); a second pressure gauge (12) and a flame arrester (13) are sequentially connected between the detection device and the negative pressure injection type burner (20);
the vertical heating furnace (1) is internally provided with a water temperature sensor (17), a flame probe (18) and an electronic igniter (19), wherein the water temperature sensor (17), the flame probe (18) and the electronic igniter (19) are electrically connected with the control cabinet (2).
2. The oilfield vertical heating furnace associated gas combustion system of claim 1, wherein: the control cabinet (2) is controlled by a remote controller (22) in a wireless mode.
3. The oilfield vertical heating furnace associated gas combustion system of claim 1, wherein: the control cabinet (2) is also electrically connected with an audible and visual alarm device (21).
4. The oilfield vertical heating furnace associated gas combustion system of claim 1, wherein: the control cabinet (2) is also provided with a water temperature indicator lamp and a fault indicator lamp.
5. A method of operating an oilfield vertical heating furnace associated gas combustion system as set forth in any one of claims 1-4, wherein: oil field associated gas enters a filter through a gas main pipe, impurities are removed from the gas through a ball valve, and partial water is separated; then, the gas enters a pressure regulating valve to regulate the pressure of the gas to be within 100 kPa; then the electric regulating valve is used for regulating the associated air flow according to the load of the heating furnace; the gas with proper flow passes through the first electromagnetic valve, so that whether the system leaks gas, whether the gas pressure is stable or not and whether the hearth is flameout or not can be detected, and the first electromagnetic valve can be closed and the audible and visual alarm device can work when the failure occurs; and finally, the associated gas finally enters an injection type burner of the vertical heating furnace through a pipeline flame arrester, so that the normal combustion of the system is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486927.0A CN108006690B (en) | 2017-12-30 | 2017-12-30 | Associated gas combustion system and method for vertical heating furnace of oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486927.0A CN108006690B (en) | 2017-12-30 | 2017-12-30 | Associated gas combustion system and method for vertical heating furnace of oil field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108006690A CN108006690A (en) | 2018-05-08 |
| CN108006690B true CN108006690B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711486927.0A Active CN108006690B (en) | 2017-12-30 | 2017-12-30 | Associated gas combustion system and method for vertical heating furnace of oil field |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597887Y (en) * | 2003-01-07 | 2004-01-07 | 北京迪威尔石油天然气技术开发有限公司 | Vertical well head heater |
| CN201166381Y (en) * | 2007-12-01 | 2008-12-17 | 于海 | Detection alarming remote control igniting gun |
| CN106438346A (en) * | 2016-08-26 | 2017-02-22 | 西安大漠石油能源科技工程有限公司 | Eccentric rotation swing mixture pump set oil-gas mixing transportation pressurization prying part and running method |
| CN207893790U (en) * | 2017-12-30 | 2018-09-21 | 西安长庆科技工程有限责任公司 | A kind of oil field vertical heater associated gas burner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6835062B2 (en) * | 2001-12-14 | 2004-12-28 | Suntec Industries Incorporated | Fuel oil supply circuit for an oil burner having a solenoid valve in parallel circuit with diaphragm valve for controlling oil flow at start up |
-
2017
- 2017-12-30 CN CN201711486927.0A patent/CN108006690B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597887Y (en) * | 2003-01-07 | 2004-01-07 | 北京迪威尔石油天然气技术开发有限公司 | Vertical well head heater |
| CN201166381Y (en) * | 2007-12-01 | 2008-12-17 | 于海 | Detection alarming remote control igniting gun |
| CN106438346A (en) * | 2016-08-26 | 2017-02-22 | 西安大漠石油能源科技工程有限公司 | Eccentric rotation swing mixture pump set oil-gas mixing transportation pressurization prying part and running method |
| CN207893790U (en) * | 2017-12-30 | 2018-09-21 | 西安长庆科技工程有限责任公司 | A kind of oil field vertical heater associated gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108006690A (en) | 2018-05-08 |
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