Ground torch ignition device

Abstract

The utility model discloses a ground torch ignition device, which relates to the field of torch ignition devices, and comprises a natural gas mixing connecting pipe arranged on a radiation protection wall in a penetrating manner, and two ends of the natural gas mixing connecting pipe are respectively connected with an incandescent light and a small flame closed venturi; the direct-combustion combustible waste gas pipe is arranged on the radiation-proof wall in a penetrating manner, and a direct-combustion spray head is arranged at the upper end of the pipe; the big flame waste gas mixing pipe is arranged on the radiation protection wall in a penetrating mode, and the two ends of the big flame waste gas mixing pipe are connected with the big flame waste gas nozzle and the big flame closed venturi respectively; each incandescent light is only provided with one of a direct combustion nozzle and a big flame waste gas nozzle; the control unit is in control connection with the natural gas mixing connecting pipe, the direct-combustion combustible waste gas pipe and the large-flame waste gas mixing pipe, and the control unit is further connected with the anemograph and the high-energy igniter; the small flame closed venturi and the big flame closed venturi are both connected with a gas pipe and an air pipe; the ignition device can burn and discharge various waste gases and fuel gases, so that the consumption cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to torch ignition device field, more specifically, relate to a ground torch ignition device. BACKGROUND

[0002] Petroleum chemical industry, coal chemical industry and other chemical plants produce a large amount of combustible harmful waste gas in the production process, and the combustible harmful gas needs to be discharged into the atmosphere after being burned by the ground torch device. At present, the long-lasting lamp is used as the ignition source of the torch burner, and the combustion gas source of the long-lasting lamp uses natural gas or liquefied petroleum gas. The annual consumption is very large, and the energy consumption cost of a large-scale oil refinery and chemical plant is very large. During use, the equipment storage and transportation cannot be maintained and repaired online. CONTENT

[0003] The utility model discloses a ground torch ignition device, which is provided with a direct combustion combustible waste gas pipe and a large flame waste gas mixing pipe. When the waste gas mixture pressure is small, the control unit automatically opens the large flame waste gas pipe, so that the large flame waste gas pipe and the large flame air pipe mix the waste gas and air in the large flame closed type venturi, and then send them into the long-lasting lamp combustion chamber. The mixed gas is ignited by the flame on the small flame natural gas nozzle, so that the waste gas with small pressure is used as the long-lasting lamp combustion gas source. When the waste gas mixture pressure is large, the control unit automatically opens the direct combustion combustible waste gas pipe. The waste gas enters the long-lasting lamp combustion chamber from the combustible waste gas pipe, and the air enters the long-lasting lamp combustion chamber from the direct combustion air pipe. The two gases are mixed and ignited by the flame on the small flame natural gas nozzle, so that the waste gas with large pressure is used as the long-lasting lamp combustion gas source. The ignition device can reduce the use of natural gas and reduce energy consumption cost. The ignition device can be used in open ground torch and closed ground torch.

[0004] In order to achieve the above purpose, the utility model provides a ground torch ignition device, which comprises:

[0005] The natural gas mixing connecting pipe is arranged through the radiation protection wall, the upper end of the natural gas mixing connecting pipe extends into each long-lasting lamp, and the lower end of the natural gas mixing connecting pipe is connected with the small flame closed type venturi. The small flame closed type venturi is also connected with the small flame natural gas pipe and the small flame air pipe.

[0006] The direct combustion combustible waste gas pipe is arranged through the radiation protection wall, and the upper end of the direct combustion combustible waste gas pipe is provided with a direct combustion nozzle.

[0007] A large-flame exhaust gas mixing pipe is arranged through the radiation-proof wall, and an upper end of the large-flame exhaust gas mixing pipe is provided with a large-flame exhaust gas nozzle, and a lower end of the large-flame exhaust gas mixing pipe is provided with a large-flame closed-type Venturi, which is further connected with a large-flame exhaust gas pipe and a large-flame air pipe;

[0008] Each of the long-lasting lamps is provided with only one of the straight-burning nozzle or the large-flame exhaust gas nozzle.

[0009] A control unit is connected with the natural gas mixing connecting pipe, the straight-burning combustible exhaust gas pipe and the large-flame exhaust gas mixing pipe, and is further connected with a wind speed meter and a high-energy igniter.

[0010] Optionally, an upper end of the natural gas mixing connecting pipe is provided with a small-flame natural gas nozzle.

[0011] Optionally, the long-lasting lamp comprises a long-lasting lamp combustion chamber, a combustion chamber thermocouple is arranged in the long-lasting lamp combustion chamber, the straight-burning nozzle and the small-flame natural gas nozzle are arranged in the same long-lasting lamp combustion chamber, and the long-lasting lamp combustion chamber is further connected with an explosion connecting pipe.

[0012] Optionally, the large-flame exhaust gas nozzle and the small-flame natural gas nozzle are arranged in another long-lasting lamp combustion chamber, and the large-flame exhaust gas nozzle is arranged outside the small-flame natural gas nozzle.

[0013] Optionally, the straight-burning nozzle comprises a straight-burning gas nozzle arranged below and a large-flame straight-burning nozzle porous plate arranged above.

[0014] Optionally, the natural gas mixing connecting pipe is provided with a small-flame natural gas thermocouple and a small-flame ignition electrode, and the control unit is connected with the small-flame natural gas thermocouple and the small-flame ignition electrode.

[0015] Optionally, the large-flame exhaust gas mixing pipe is provided with a large-flame thermocouple, and the control unit is connected with the large-flame thermocouple.

[0016] Optionally, a small-flame natural gas manual regulating valve, a small-flame natural gas flow meter and a small-flame natural gas on-off valve are arranged on the small-flame natural gas pipe in sequence, a small-flame air explosion-proof check valve, a small-flame air flow meter and a small-flame air regulating valve are arranged on the small-flame air pipe in sequence, and the small-flame natural gas flow meter, the small-flame natural gas on-off valve and the small-flame air flow meter are connected with the control unit.

[0017] Optionally, the direct combustion combustible waste gas pipe is sequentially provided with a direct combustion manual regulating valve, a direct combustion flow meter and a direct combustion on-off valve, the direct combustion air pipe is communicated with the long-lasting lamp combustion chamber, the direct combustion air pipe is sequentially provided with a direct combustion air explosion-proof one-way valve, a direct combustion air flow meter and a direct combustion air manual regulating valve, and the direct combustion flow meter and the direct combustion air flow meter are connected with the control unit.

[0018] Optionally, the large flame waste gas pipe is sequentially provided with a large flame waste gas manual regulating valve, a large flame waste gas flow meter and a large flame waste gas on-off valve, the large flame air pipe is sequentially provided with a large flame air explosion-proof one-way valve, a large flame air flow meter and a large flame air regulating valve, and the large flame waste gas flow meter and the large flame air flow meter are connected with the control unit.

[0019] The ground torch ignition device has the advantages that:

[0020] 1. The ignition device uses the direct combustion combustible waste gas pipe and the large flame waste gas mixing pipe to introduce the waste gas with different pressures as the long-lasting lamp large flame gas source, mixes the waste gas with air, and then ignites by the flame on the small flame natural gas nozzle, so that the consumption of natural gas is reduced while the stable combustion of the long-lasting lamp is ensured.

[0021] 2. The ignition device is provided with a Venturi, and the small flame closed Venturi and the large flame closed Venturi are arranged outside the radiation-proof wall, the communication state of the small flame closed Venturi and the large flame closed Venturi can be adjusted according to the environmental wind speed received by the control unit and the adjustment of the gas flow, so that online maintenance and maintenance are realized.

[0022] 3. Each Venturi of the ignition device is provided with a combustible waste gas inlet, an air inlet and an outlet, so that the adjustment of the air inlet amount can be realized by adjusting the manual regulating valves on the small flame natural gas pipe, the small flame air pipe, the direct combustion combustible waste gas pipe, the direct combustion air pipe, the large flame waste gas pipe and the large flame air pipe, and the combustion of the long-lasting lamp is ensured.

[0023] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views.

[0025] Figure 1A structure schematic view of the small flame closed type Venturi arranged outside the radiation-proof wall is shown according to one embodiment of the utility model.

[0026] Figure 2 A structure schematic view of the small flame closed type Venturi and the large flame closed type Venturi arranged outside the radiation-proof wall is shown according to one embodiment of the utility model.

[0027] Figure 3 A structure schematic view of the small flame closed type Venturi and the large flame closed type Venturi arranged inside the radiation-proof wall is shown according to one embodiment of the utility model.

[0028] Figure 4 A structure schematic view of the small flame natural gas nozzle and the direct combustion nozzle arranged in the long-lasting lamp combustion cavity is shown according to one embodiment of the utility model.

[0029] Figure 5 A structure schematic view of the natural gas mixing connecting pipe and the direct combustion combustible waste gas pipe is shown according to one embodiment of the utility model.

[0030] Figure 6 A structure schematic view of the small flame natural gas nozzle and the large flame waste gas nozzle arranged in the long-lasting lamp combustion cavity is shown according to one embodiment of the utility model.

[0031] Figure 7 A structure schematic view of the natural gas mixing connecting pipe and the large flame waste gas mixing pipe is shown according to one embodiment of the utility model.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] 1. long-lasting light; 2. open ground flare; 3. small flame natural gas pipe; 4. small flame natural gas manual regulating valve; 5. small flame natural gas flow meter; 6. small flame natural gas on-off valve; 7. radiation-proof wall; 8. natural gas inlet; 9. small flame closed type venturi; 10. first air inlet; 11. small flame air manual regulating valve; 12. small flame air flow meter; 13. small flame air explosion-proof check valve; 14. small flame air pipe; 15. first outlet; 16. natural gas mixing connecting pipe; 17. small flame natural gas thermocouple; 18. small flame ignition electrode; 19. small flame natural gas nozzle; 20. combustion chamber thermocouple; 21. long-lasting light combustion chamber; 22. control unit; 23. anemometer; 24. high-energy igniter; 25. large flame direct combustion nozzle porous plate; 26. direct combustion gas nozzle; 27. direct combustion nozzle; 28. deflagration connecting pipe; 29. direct combustion air pipe; 30. direct combustion combustible waste gas pipe; 31. direct combustion on-off valve; 32. direct combustion flow meter; 33. direct combustion manual regulating valve; 34. direct combustion air manual regulating valve; 35. direct combustion air flow meter; 36. direct combustion air explosion-proof check valve; 37. large flame waste gas nozzle; 38. large flame thermocouple; 39. large flame waste gas mixing pipe; 40. large flame closed type venturi; 41. second outlet; 42. second air inlet; 43. gas inlet; 44. large flame waste gas on-off valve; 45. large flame waste gas flow meter; 46. large flame waste gas manual regulating valve; 47. large flame waste gas pipe; 48. large flame air regulating valve; 49. large flame air flow meter; 50. large flame air explosion-proof check valve; 51. large flame air pipe. DETAILED DESCRIPTION

[0034] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it is to be understood that the present application can be carried out in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0035] As Figure 1As shown in the utility model provides a ground torch ignition device, in the inside of the radiation protection wall 7 of open ground torch still be provided with another long lasting lamp 1, this long lasting lamp also be provided with a plurality of, long lasting lamp 1 with natural gas mixing connecting pipe 16 and big flame waste gas mixing pipe 39 are connected, and two mixed pipes are all provided with the Venturi, and the Venturi is set in the radiation protection wall 7 outside, when the environmental wind speed is greater than the preset value of control unit 22, need first ignite small flame natural gas nozzle 19, then open big flame waste gas switch valve 44 through control unit 22, so that big flame waste gas pipe 47 has waste gas combustible gas to enter big flame closed Venturi 40, air enters big flame closed Venturi 40 through big flame air pipe 51 and mixes with waste gas combustible gas, finally from big flame waste gas mixing pipe 39 is sent to long lasting lamp combustion chamber 21, is ignited by the flame of small flame natural gas nozzle 19, through big flame waste gas manual regulating valve 46 and big flame air regulating valve 48 carry out air intake amount manual regulation, through big flame thermocouple 38 to monitor the combustion condition.

[0036] As shown in the utility model provides a ground torch ignition device, in the inside of the radiation protection wall 7 of open ground torch still be provided with another long lasting lamp 1, this long lasting lamp also be provided with a plurality of, long lasting lamp 1 with natural gas mixing connecting pipe 16 and big flame waste gas mixing pipe 39 are connected, and two mixed pipes are all provided with the Venturi, and the Venturi is set in the radiation protection wall 7 outside, when the environmental wind speed is greater than the preset value of control unit 22, need first ignite small flame natural gas nozzle 19, then open big flame waste gas switch valve 44 through control unit 22, so that big flame waste gas pipe 47 has waste gas combustible gas to enter big flame closed Venturi 40, air enters big flame closed Venturi 40 through big flame air pipe 51 and mixes with waste gas combustible gas, finally from big flame waste gas mixing pipe 39 is sent to long lasting lamp combustion chamber 21, is ignited by the flame of small flame natural gas nozzle 19, through big flame waste gas manual regulating valve 46 and big flame air regulating valve 48 carry out air intake amount manual regulation, through big flame thermocouple 38 to monitor the combustion condition. Figure 2 As shown in the utility model provides a ground torch ignition device, in the inside of the radiation protection wall 7 of open ground torch still be provided with another long lasting lamp 1, this long lasting lamp also be provided with a plurality of, long lasting lamp 1 with natural gas mixing connecting pipe 16 and big flame waste gas mixing pipe 39 are connected, and two mixed pipes are all provided with the Venturi, and the Venturi is set in the radiation protection wall 7 outside, when the environmental wind speed is greater than the preset value of control unit 22, need first ignite small flame natural gas nozzle 19, then open big flame waste gas switch valve 44 through control unit 22, so that big flame waste gas pipe 47 has waste gas combustible gas to enter big flame closed Venturi 40, air enters big flame closed Venturi 40 through big flame air pipe 51 and mixes with waste gas combustible gas, finally from big flame waste gas mixing pipe 39 is sent to long lasting lamp combustion chamber 21, is ignited by the flame of small flame natural gas nozzle 19, through big flame waste gas manual regulating valve 46 and big flame air regulating valve 48 carry out air intake amount manual regulation, through big flame thermocouple 38 to monitor the combustion condition.

[0037] When the pressure of the exhaust gas mixture is less than 0.1 MPa, the control unit opens the large flame exhaust gas pipe 47 and the large flame air pipe 51, and cooperates with the natural gas mixing connection pipe 16; when the pressure of the exhaust gas mixture is greater than 0.1 MPa, the control unit opens the direct combustion combustible exhaust gas pipe 30 and the direct combustion air pipe 29, and cooperates with the natural gas mixing connection pipe 16.

[0038] As shown in Figure 3 , in the ignition device, the small flame closed type Venturi 9 and the large flame closed type Venturi 40 are arranged in the radiation-proof wall 7, and according to the data fed back to the control unit 22 by the flow meter, the intake amount of the exhaust gas, the fuel gas and the air is adjusted by the manual regulating valve on each pipe.

[0039] As shown in Figure 4 and Figure 5 , when the direct combustion combustible exhaust gas pipe 30 and the natural gas mixing connection pipe 16 are communicated with the same long-lasting lamp combustion chamber 21, the direct combustion nozzle 27 and the small flame natural gas nozzle 19 are arranged side by side, in the direct combustion nozzle 27, the exhaust gas combustible gas is sprayed out through the direct combustion gas nozzle 26, mixed with the air entering through the direct combustion air pipe 29, and then uniformly discharged through the large flame direct combustion nozzle multi-hole plate 25 after sufficient mixing, so that the combustible mixture is ignited by the flame of the small flame natural gas nozzle 19, the small flame natural gas thermocouple 17 monitors the temperature of the small flame natural gas nozzle 19, and the combustion chamber thermocouple 20 monitors the temperature of the long-lasting lamp combustion chamber 21; when the combustion chamber thermocouple 20 monitors the temperature and transmits it to the control unit 22, the temperature continues to rise and stabilizes in a certain temperature range, indicating that the ignition is successful, when the temperature does not change, it indicates that the ignition fails; the combustion chamber thermocouple 20 also uses the method of cyclic detection and comparison of temperature to detect, the temperature data collected for the second time is compared with the temperature data collected for the first time, when the temperature data collected for the second time is lower than the temperature data collected for the first time, which is lower than the set range of 0-50℃, the control unit will issue an alarm prompt, indicating that the long-lasting lamp is extinguished; when the small flame natural gas thermocouple monitors the temperature in the natural gas mixing connection pipe, when the temperature exceeds the set temperature of 80℃, the control unit will issue an alarm instruction, indicating that the long-lasting lamp gas temperature is abnormal, and the control unit 22 issues an alarm instruction signal.

[0040] As shown in Figure 6 and Figure 7As shown, when the large-flame waste gas mixing pipe 39 and the natural gas mixing connecting pipe 16 are communicated with the same long-lasting lamp combustion cavity 21, the large-flame waste gas nozzle 37 is arranged at the outer periphery of the small-flame natural gas nozzle 19, the waste gas and air are fully mixed in the large-flame closed-type venturi 40, and then are sent into the long-lasting lamp combustion cavity 21 from the large-flame waste gas mixing pipe 39; due to the arrangement of the large-flame waste gas nozzle 37, the waste gas mixed gas can be uniformly discharged, and finally is ignited by the flame of the small-flame natural gas nozzle 19; the large-flame thermocouple 38 is arranged to monitor the combustion temperature in the large-flame waste gas mixing pipe 39, and the large-flame waste gas manual adjusting valve 46 and the large-flame air adjusting valve 48 are manually adjusted when necessary.

[0041] The above has described the embodiments of the present application, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A ground flare ignition device, characterized in that, The application relates to a natural gas mixed connecting pipe (16) which is arranged through a radiation-proof wall (7), wherein the upper end of the natural gas mixed connecting pipe (16) extends into each long-lasting lamp (1), the lower end of the natural gas mixed connecting pipe (16) is connected with a small-flame closed-type Venturi (9), the small-flame closed-type Venturi (9) is further connected with a small-flame natural gas pipe (3) and a small-flame air pipe (14); a direct-burning combustible waste gas pipe (30) which is arranged through the radiation-proof wall (7), wherein the upper end of the direct-burning combustible waste gas pipe (30) is provided with a direct-burning nozzle (27); a large-flame waste gas mixed pipe (39) which is arranged through the radiation-proof wall (7), wherein the upper end of the large-flame waste gas mixed pipe (39) is provided with a large-flame waste gas nozzle (37), the lower end of the large-flame waste gas mixed pipe (39) is provided with a large-flame closed-type Venturi (40), and the large-flame closed-type Venturi (40) is further connected with a large-flame waste gas pipe (47) and a large-flame air pipe (51); each long-lasting lamp (1) is provided with only one of the direct-burning nozzle (27) or the large-flame waste gas nozzle (37); a control unit (22) which is connected with the natural gas mixed connecting pipe (16), the direct-burning combustible waste gas pipe (30) and the large-flame waste gas mixed pipe (39), and is further connected with an anemometer (23) and a high-energy igniter (24). The upper end of the natural gas mixed connecting pipe (16) is provided with a small-flame natural gas nozzle (19). The long-lasting lamp (1) comprises a long-lasting lamp combustion chamber (21) which is provided with a combustion chamber thermocouple (20), the direct-burning nozzle (27) and the small-flame natural gas nozzle (19) are arranged in the same long-lasting lamp combustion chamber, and the long-lasting lamp combustion chamber is further connected with an explosion-proof connecting pipe (28). The large-flame waste gas nozzle (37) and the small-flame natural gas nozzle (19) are arranged in another long-lasting lamp combustion chamber, and the large-flame waste gas nozzle (37) is arranged outside the periphery of the small-flame natural gas nozzle (19). The direct-burning nozzle (27) comprises a direct-burning gas nozzle (26) arranged below and a large-flame direct-burning nozzle multi-hole plate (25) arranged above. The natural gas mixed connecting pipe (16) is provided with a small-flame natural gas thermocouple (17) and a small-flame ignition electrode (18), and the control unit (22) is connected with the small-flame natural gas thermocouple (17) and the small-flame ignition electrode (18).

2. The ground flare ignition device of claim 1, wherein, The large-flame waste gas mixed pipe (39) is provided with a large-flame thermocouple (38), and the control unit is connected with the large-flame thermocouple (38).

3. The ground flare ignition device of claim 2, wherein, ​ 4. The ground flare ignition device of claim 3, wherein, ​ 5. The ground flare ignition device of claim 1, wherein, ​ 6. The ground flare ignition device of claim 1, wherein, ​ 7. The ground flare ignition device of claim 1, wherein, ​ 8. The ground flare ignition device of claim 1, wherein, The small flame natural gas pipe (3) is sequentially provided with a small flame natural gas manual regulating valve (4), a small flame natural gas flowmeter (5) and a small flame natural gas on-off valve (6), the small flame air pipeline (14) is sequentially provided with a small flame air explosion-proof check valve (13), a small flame air flowmeter (12) and a small flame air regulating valve (11), the small flame natural gas flowmeter (5), the small flame natural gas on-off valve (6) and the small flame air flowmeter (12) are connected with the control unit.

9. The ground flare ignition device of claim 3, wherein, The direct combustion combustible exhaust pipe (30) is sequentially provided with a direct combustion manual regulating valve (33), a direct combustion flowmeter (32) and a direct combustion on-off valve (31), the direct combustion air pipe (29) is communicated with the long-lasting lamp combustion cavity (21), the direct combustion air pipe (29) is sequentially provided with a direct combustion air explosion-proof check valve (36), a direct combustion air flowmeter (35) and a direct combustion air manual regulating valve (34), the direct combustion flowmeter (32) and the direct combustion air flowmeter (35) are connected with the control unit (22).

10. The ground flare ignition device of claim 1, wherein, The large flame exhaust pipe (47) is sequentially provided with a large flame exhaust manual regulating valve (46), a large flame exhaust flowmeter (45) and a large flame exhaust on-off valve (44), the large flame air pipe (51) is sequentially provided with a large flame air explosion-proof check valve (50), a large flame air flowmeter (49) and a large flame air regulating valve (48), the large flame exhaust flowmeter (45) and the large flame air flowmeter (49) are connected with the control unit (22).

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