CN101929675A - Premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle - Google Patents
Premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle Download PDFInfo
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- CN101929675A CN101929675A CN 201010283124 CN201010283124A CN101929675A CN 101929675 A CN101929675 A CN 101929675A CN 201010283124 CN201010283124 CN 201010283124 CN 201010283124 A CN201010283124 A CN 201010283124A CN 101929675 A CN101929675 A CN 101929675A
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Abstract
The invention relates to a premixed type combustion system for the heat treatment of the outer surface of a plastic pipe and a gas nozzle. The system consists of a safe control system and a safe pipeline system; the safe control system comprises a PLC controller, a gas leakage detector, an ignition transformer and an ignition system; the safe pipeline system comprises a gas valve group, an air valve group, a mixing chamber and a flame arrester. The feed port of the mixing chamber is connected with the gas valve group and the air valve group respectively, and the discharge hole of the mixing chamber is connected with the gas nozzle through the flame arrestor. The gas nozzle comprises an annular nozzle column; an annular gas-air mixing nozzle is arranged at the middle of the nozzle column, and three rows of holes are alternately formed on the nozzle; a gas-air mixture chamber is arranged between the annular gas-air mixing nozzle and the outer wall of the nozzle column; and the gas-air mixture chamber is connected with a gas-air mixture inlet. The invention overcomes the shortcomings that potential safety hazard exists in the traditional premixed type combustion system and the temperature of a common nozzle is non-uniform and nonadjustable.
Description
Technical field
The present invention relates to a kind of gas pre-mixed combustion system, particularly relate to the premix combustion systems higher the uniformity requirement in temperature field.
Background technology
Some plastic pipe is to be used in some special occasions, and such as fields such as automobile, food, chemical industry, they are higher to the quality requirement of plastic pipe, particularly the rich property of tubing and hardness etc. is had relatively high expectations.In order to make the plastic pipe extruded on the production line obtain good after property and hardness need extrude water-cooled to it, to carry out heat treated again, promptly need a safe and reliable combustion system of cover and nozzle produces safe and reliable and the even adjustable combustion flame of temperature, because this combustion system and nozzle are mounted on the plastic pipe extruding production line, only the surface of tubing is heat-treated, and higher to heat treated temperature height and uniformity requirement.Also there are not a safe and reliable combustion system of cover and nozzle to realize at present.
Summary of the invention
The objective of the invention is and to obtain safe and reliable and the even adjustable combustion flame of temperature for some special plastic pipe Technologies for Heating Processing, provide a cover safe and reliable premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle, it has overcome common premix combustion systems and has had potential safety hazard and plain nozzle non-uniform temperature, nonadjustable shortcoming.
Technical scheme of the present invention is: a kind of premixed type combustion system for heat treatment of outer surface of plastic pipe, form by safety control system and pipe-line system, safety control system comprises PLC controller, gas leakage checkout gear, ignition transformer and ignition system, the safety line system comprises gas valve group, air valve group, mixing chamber, spark arrester, be characterized in: the charging aperture of mixing chamber connects gas valve group and air valve group respectively, and the discharging opening of mixing chamber connects gas nozzle through spark arrester.
The gas valve group begins to connect successively gas pressure regulating valve from fuel gas inlet, pressure switch, two gas electromagnetic valves, gas flow control valve and check-valves; The air valve group begins to connect successively the air pressure regulator valve from air inlet, air magnetic valve and air flow control valve.
Mixing chamber is made of contraction section, straight length, larynx footpath and diffuser, and wherein, the centre is a straight length, and the left side is a contraction section, and the right is larynx footpath and diffuser, and the contraction section front end is provided with fuel gas inlet and air intake, and the diffuser rear end is provided with mixed gas outlet.
A kind of gas nozzle, comprise the nozzle post of shape ringwise, be provided with the gas-air mixing nozzle of annular in the middle of the nozzle post, alternately be furnished with three rounds on the gas-air mixing nozzle, be provided with gas-air mixed air vessel between the gas-air mixing nozzle of annular and the nozzle column outer wall, and gas-air mixed air vessel connects gas-air gaseous mixture inlet.
The invention has the beneficial effects as follows: safe and reliable premixed type combustion system for heat treatment of outer surface of plastic pipe and the gas nozzle of a cover provided by the invention, it has overcome existing premix combustion systems and has had potential safety hazard and plain nozzle non-uniform temperature, nonadjustable shortcoming.
Description of drawings
Fig. 1 is a loop configuration burner front view of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a safety valve group system schematic diagram of the present invention;
Fig. 4 is the mixing chamber schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
As Fig. 1, shown in 2, gas nozzle comprises the nozzle post of shape ringwise, be provided with the gas-air mixing nozzle 2 of annular in the middle of the nozzle post, alternately be furnished with three rounds on the nozzle 2, be provided with gas-air mixed air vessel 1 between the gas-air mixing nozzle 2 of annular and the nozzle column outer wall, and gas-air mixed air vessel 1 connects gas-air gaseous mixture inlet 3.For reach combustion system safe and reliable, temperature is adjustable and the uniform purpose in temperature field, has adopted premixed combustion system, and designs of nozzles is the loop configuration nozzles that three row's porous are alternately arranged, in order to eliminate the insecurity of premixed combustion.
As shown in Figure 3, the present invention also comprises a cover safety control system and a pipe-line system, and this safety control system is made up of PLC controller, touch-screen, gas leakage checkout gear, ignition transformer and ignition system etc.The safety line system mainly is made up of gas valve group, air valve group, mixing chamber, spark arrester etc.
Combustion gas and combustion air are supplied respectively by two gas pipings, form two control pipers.Fuel gas pipeline mainly comprises: gas pressure regulating valve 7, two gas electromagnetic valves 9, pressure switch 8, gas flow control valve 10 and combustion gas check-valves 11; Air pipe line mainly comprises: air pressure regulator valve 12, air magnetic valve 13 and air flow control valve 14.Its operation principle is to utilize flow control valve to regulate gas quantity and air capacity respectively, according to the mixed proportion of prior setting, delivers in the mixing chamber and fully mixes, and forms uniform gaseous mixture, sends into the burner burning by the gaseous mixture pipeline again.
Aspect igniting, adopt the 11kV high pressure automatically to light a fire; In order to prevent tempering, this invention has designed spark arrester 5 and controlled the burner spout by the inlet pressure of regulating combustion gas on mixed pipe line muzzle velocity.Aspect safeguard protection, the gas leakage checkout gear has been used in this invention, and adopts pressure switch 9 control minimum operating pressures, uses magnetic valve to cut off source of the gas immediately when supply gas pressure is lower than setting value, prevents tempering and blast, plays the safeguard protection effect.
As shown in Figure 4, mixing chamber 4 is made of contraction section 17, straight length 18, larynx footpath and diffuser 19, wherein, the centre is a straight length 18, the left side is a contraction section 17, the right is larynx footpath and diffuser 19, and contraction section 17 front ends are provided with fuel gas inlet 15 and air intake 16, and diffuser 19 rear ends are provided with mixed gas outlet 20.
Mix in order to make combustion gas and air reach sufficient, to obtain the even temperature field, this invention specialized designs mixing chamber 4, this mixing chamber 4 has been quoted the venturi technology, constitute by contraction section 17, straight length 18, larynx footpath and diffuser 19, can make combustion gas and air reach well-mixed purpose.
Claims (4)
1. premixed type combustion system for heat treatment of outer surface of plastic pipe, form by safety control system and pipe-line system, safety control system comprises PLC controller, gas leakage checkout gear, ignition transformer and ignition system, the safety line system comprises gas valve group, air valve group, mixing chamber (4), spark arrester (5), it is characterized in that: the charging aperture of described mixing chamber (4) connects gas valve group and air valve group respectively, and the discharging opening of mixing chamber (4) connects gas nozzle (6) through spark arrester (5).
2. premixed type combustion system for heat treatment of outer surface of plastic pipe according to claim 1 is characterized in that; Described gas valve group begins to connect successively gas pressure regulating valve (7) from fuel gas inlet, pressure switch (8), two gas electromagnetic valves (9), gas flow control valve (10) and combustion gas check-valves (11); Described air valve group begins to connect successively air pressure regulator valve (12) from air inlet, air magnetic valve (13) and air flow control valve (14).
3. premixed type combustion system for heat treatment of outer surface of plastic pipe according to claim 1 is characterized in that; Described mixing chamber (4) is made of contraction section (17), straight length (18), larynx footpath and diffuser (19), wherein, the centre is straight length (18), the left side is contraction section (17), the right is larynx footpath and diffuser (19), contraction section (17) front end is provided with fuel gas inlet (15) and air intake (16), and diffuser (19) rear end is provided with mixed gas outlet (20).
4. one kind is used for each gas nozzle (6) of claim 1 to 4, comprises the nozzle post of shape ringwise, it is characterized in that; Be provided with the gas-air mixing nozzle (2) of annular in the middle of the described nozzle post, the gas-air mixing nozzle alternately is furnished with three rounds on (2), be provided with gas-air mixed air vessel (1) between gas-air mixing nozzle (2) and the nozzle column outer wall, and gas-air mixed air vessel (1) connects gas-air gaseous mixture inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102831247A CN101929675B (en) | 2010-09-16 | 2010-09-16 | Premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102831247A CN101929675B (en) | 2010-09-16 | 2010-09-16 | Premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929675A true CN101929675A (en) | 2010-12-29 |
| CN101929675B CN101929675B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102831247A Expired - Fee Related CN101929675B (en) | 2010-09-16 | 2010-09-16 | Premixed type combustion system for heat treatment of outer surface of plastic pipe and gas nozzle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588954A (en) * | 2012-03-07 | 2012-07-18 | 广西有色再生金属有限公司 | Combustion device for heating up top-blown converter |
| CN102679356A (en) * | 2011-03-15 | 2012-09-19 | 佛山市启迪节能科技有限公司 | Automatic control mode and device of premixing type secondary burner |
| CN103234218A (en) * | 2013-04-23 | 2013-08-07 | 台州英达机械科技有限公司 | Fuel delivering device of blast burner |
| CN109237478A (en) * | 2018-09-11 | 2019-01-18 | 抚顺抚运安仪救生装备有限公司 | Air respiratorresuscitator fire-resistance flame phagocytosis test combustion system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254310A (en) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for controlling opening degree of resistor vane for burner |
| JPH09243083A (en) * | 1996-03-12 | 1997-09-16 | Kansai Electric Power Co Inc:The | Gas turbine combustion device |
| CN2773498Y (en) * | 2005-02-05 | 2006-04-19 | 王永涛 | Premixed rotary energy-saving cooker for Chinese food |
| CN101344257A (en) * | 2008-08-01 | 2009-01-14 | 北京光华五洲纺织集团公司 | Standard combined in-situ premixed explosive device for gas shock-wave ash blowing |
| CN201293329Y (en) * | 2008-09-03 | 2009-08-19 | 孙海波 | Respective ignition type gas pulse sootblower |
-
2010
- 2010-09-16 CN CN2010102831247A patent/CN101929675B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254310A (en) * | 1995-03-16 | 1996-10-01 | Ishikawajima Harima Heavy Ind Co Ltd | Method and device for controlling opening degree of resistor vane for burner |
| JPH09243083A (en) * | 1996-03-12 | 1997-09-16 | Kansai Electric Power Co Inc:The | Gas turbine combustion device |
| CN2773498Y (en) * | 2005-02-05 | 2006-04-19 | 王永涛 | Premixed rotary energy-saving cooker for Chinese food |
| CN101344257A (en) * | 2008-08-01 | 2009-01-14 | 北京光华五洲纺织集团公司 | Standard combined in-situ premixed explosive device for gas shock-wave ash blowing |
| CN201293329Y (en) * | 2008-09-03 | 2009-08-19 | 孙海波 | Respective ignition type gas pulse sootblower |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679356A (en) * | 2011-03-15 | 2012-09-19 | 佛山市启迪节能科技有限公司 | Automatic control mode and device of premixing type secondary burner |
| CN102588954A (en) * | 2012-03-07 | 2012-07-18 | 广西有色再生金属有限公司 | Combustion device for heating up top-blown converter |
| CN103234218A (en) * | 2013-04-23 | 2013-08-07 | 台州英达机械科技有限公司 | Fuel delivering device of blast burner |
| CN109237478A (en) * | 2018-09-11 | 2019-01-18 | 抚顺抚运安仪救生装备有限公司 | Air respiratorresuscitator fire-resistance flame phagocytosis test combustion system |
| CN109237478B (en) * | 2018-09-11 | 2023-08-22 | 抚顺抚运安仪救生装备有限公司 | Combustion system for flame-resistant phagocytosis test of air respirator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101929675B (en) | 2012-05-23 |
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