CN203494410U - Automatic flow-adjusted gas mixer - Google Patents

Automatic flow-adjusted gas mixer Download PDF

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Publication number
CN203494410U
CN203494410U CN201320594430.1U CN201320594430U CN203494410U CN 203494410 U CN203494410 U CN 203494410U CN 201320594430 U CN201320594430 U CN 201320594430U CN 203494410 U CN203494410 U CN 203494410U
Authority
CN
China
Prior art keywords
gas
compressed air
liquefied petroleum
valve
mixing machine
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.)
Expired - Fee Related
Application number
CN201320594430.1U
Other languages
Chinese (zh)
Inventor
万鹿贵
韩民
王海利
赵增栓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OKAY ENERGY TECHNOLOGY (TIANJIN) Co Ltd
Original Assignee
OKAY ENERGY TECHNOLOGY (TIANJIN) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OKAY ENERGY TECHNOLOGY (TIANJIN) Co Ltd filed Critical OKAY ENERGY TECHNOLOGY (TIANJIN) Co Ltd
Priority to CN201320594430.1U priority Critical patent/CN203494410U/en
Application granted granted Critical
Publication of CN203494410U publication Critical patent/CN203494410U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an automatic flow-adjusted gas mixer relating to a device for generating the mixed gas of liquefied petroleum gas and air. The utility model aims to provide an automatic flow-adjusted gas mixer which is high in gas mixing precision, high adjustable flow, safe to use, simple to operate and low in cost. The automatic flow-adjusted gas mixer disclosed by the utility model comprises a liquefied petroleum gas line, a compressed air line and a mixed gas line, wherein both the liquefied petroleum gas line and the compressed air line are connected with the mixed gas line through a gas mixing valve, and all the lines are arranged on a rack. The automatic flow-adjusted gas mixer is characterized in that the compressed air line is sequentially provided with a first pneumatic membrane cut off valve, a first pressure regulator and a pneumatic control valve; the liquefied petroleum gas line is sequentially provided with a second pneumatic membrane cut off valve and a second pressure regulator; the mixed gas line is provided with a static mixer.

Description

Automatic adjustable flow capacity gas mixing machine
Technical field
The utility model relates to a kind of gas flow blender, particularly relates to a kind of automatic adjustable flow capacity gas mixing machine for liquefied petroleum gas and air mixing.
Background technology
The road of town gas development has experienced a plurality of stages of coal gas, oil gas, liquefied petroleum gas and natural gas.The course of city gasification, also illustrates that the mankind constantly conquer nature, nature remodeling, and scientific level is the course of progress constantly.
Liquefied petroleum gas can be for civilian use or the fuel gas of commercial Application to be necessarily mixed into than complete and air or other fuel gas with low heat value, first originates from external, domestic its technology and equipment of introducing from the nineties.Its ignition quality is similar to natural gas or other gases.Take liquefied petroleum gas as raw material, is a kind of form of pipe gas but be different from general bottle gas in user assignment mode.Therefore upper more more convenient than bottle gas use, uninterruptedly low pressure air feed, exempts the liquefied petroleum gas cylinder that every household is placed with certain risk, thereby safer.Liquefied petroleum gas and air Mixture can have the combustion characteristics that is similar to natural gas in addition, thereby can, as the substitutable gas resources of natural gas, also can be used as the supplementary source of the gas of natural gas or certain gas, peak regulation source of the gas.
It is existing two kinds of technology and defect thereof below: venturi air mixing machine, the liquefied gas of high pressure sprays in nozzle, and near nozzle, form negative pressure, and promote inlet valve by external environment air intake, in Venturi tube, after compression diffusion, form in uniform mist input pipe network.Generally, in the mixed gas mode of venturi, air must not pressurize, all the energy of mixed process is provided by the pressure of liquefied gas, the output pressure of gaseous mixture is relevant with nozzle and Venturi tube, in gaseous mixture, AIR Proportional is higher simultaneously, gaseous mixture output pressure is lower, and in the not pressurized situation of air, mixture pressure is conventionally low with interior output pressure at 4500mm water column.In venturi hybrid mode, once determine when nozzle and Venturi tube, the ratio of gaseous mixture is also substantially definite, and mixed proportion adjusting range is little.
Following-flow gas mixer, fuel gas with low heat value (require occasion that the pressure loss is little also can not pressure regulation) after voltage stabilizing enters flowmeter with pressure P 1, flowmeter by the normal flow the signal is far passed after temperature and pressure compensation to adjusting apparatus and PLC on central control board, adjusting apparatus for example, is controlled the aperture of anti-explosion electric control valve according to the instantaneous delivery of predefined flow proportional (1:1) and fuel gas with low heat value, make high heating value combustion gas after voltage stabilizing with the pressure P 2 reciprocity flows higher than P1 enter in static mixer with fuel gas with low heat value all with mix.Caloric value instrument and oxygen divide instrument to carry out continuous on-line detection to mixing rear combustion gas, and by signal feedback to central control system, adjusting apparatus is finely tuned the aperture of motor-driven valve at any time according to calorific value deviation, calorific value is stabilized on set point the most at last.The shortcoming of this system is that design is complicated, need to be equipped with two flowmeters, two control valves, and cost is higher, and operation is controlled complicated.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of mixed gas precision is high, flow controlled variable is large, use automatic adjustable flow capacity gas mixing machine safe, simple to operate and that cost is low.
The utility model automatic adjustable flow capacity gas mixing machine, comprise liquefied petroleum air pipe, compressed air line and mist pipeline, liquefied petroleum air pipe is connected with gaseous mixture pipeline by Gas mixing valve with compressed air line, it is characterized in that: all pipelines are installed in frame, the first entrance ball valve, the first Pneumatic thin film cutting valve, the first check-valves, the first pressure regulator and pneumatic control valve are installed on described compressed air line successively; The second entrance ball valve, the second Pneumatic thin film cutting valve, the second check-valves and the second pressure regulator are installed on liquefied petroleum air pipe successively; On gaseous mixture pipeline, static mixer is installed.
The utility model automatic adjustable flow capacity gas mixing machine, place, wherein said compressed air line gas access is provided with the first entrance ball valve; Place, liquefied gas petroleum pipeline gas access is provided with the second entrance ball valve.
The utility model automatic adjustable flow capacity gas mixing machine, is provided with the first check-valves on wherein said compressed air line; The second check-valves is installed on liquefied petroleum air pipe.
The utility model automatic adjustable flow capacity gas mixing machine, the mixed gas outlet place of wherein said gaseous mixture pipeline is processed with thief hatch.
The utility model automatic adjustable flow capacity gas mixing machine, is provided with temperature transmitter and the second pressure transmitter on wherein said liquefied petroleum air pipe.
The utility model automatic adjustable flow capacity gas mixing machine, is provided with pressure difference transmitter and the first pressure transmitter on wherein said compressed air line.
The utility model automatic adjustable flow capacity gas mixing machine difference from prior art is, on the compressed air line of the utility model automatic adjustable flow capacity gas mixing machine, pneumatic control valve is installed, and gaseous mixture precision improves greatly; Two entrance ball valves, pneumatic control valve and two equal controllable flow rates of pressure regulator valve, flow adjustability is large; The utility model part is few, simple in structure, and operation is used very easy, and manufacturing cost is also lower; Article three, on pipeline, a plurality of pressure, temperature and pressure difference transmitter are installed, each parameter situation in monitored pipeline, can find the abnormal use in pipeline at any time in real time, and in use procedure, safety coefficient is higher.
Below in conjunction with accompanying drawing, automatic adjustable flow capacity gas mixing machine of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the top view of the utility model automatic adjustable flow capacity gas mixing machine;
Fig. 2 is the left view of the utility model automatic adjustable flow capacity gas mixing machine.
The specific embodiment
As depicted in figs. 1 and 2, the utility model automatic adjustable flow capacity gas mixing machine comprises liquefied petroleum air pipe 2, compressed air line 1 and mist pipeline 3, and liquefied petroleum air pipe 2 is connected with gaseous mixture pipeline 3 by Gas mixing valve 4 with compressed air line 1.All pipelines are installed in frame 5.The first entrance ball valve 61, the first Pneumatic thin film cutting valve 71, the first check-valves 81, the first pressure regulator 91, pneumatic control valve 10, pressure difference transmitter 11 and the first pressure transmitter 12 are installed on compressed air line 1 successively; The second entrance ball valve 62, the second Pneumatic thin film cutting valve 72, the second check-valves 82, the second pressure regulator 92, temperature transmitter 13 and the second pressure transmitter 14 are installed on liquefied petroleum air pipe 2 successively; Static mixer 15 is installed on gaseous mixture pipeline 3, and mixed gas outlet 20 places are processed with thief hatch 16, so that operating personnel detect mixture ratio.
Compressed air and liquefied petroleum gas enter air mixing machine from the first entrance ball valve 61 and the second entrance ball valve 62 respectively, arrive respectively the first pressure regulator 91 and the second pressure regulator 92, and these two kinds of gases occupy the leading position of whole mixed gas system, form leading source of the gas.Wherein, the first pressure regulator 91 is as aggressive valve, its setting pressure is the operating pressure of air mixing machine, the second pressure regulator 92 is servo valve, its setting pressure is identical with air pressure, and follows in real time the fluctuation of air pressure, to guarantee that two kinds of gases enter in air mixing machine with essentially identical pressure, pneumatic control valve 10 is arranged on before compressed air enters Gas mixing valve, and air pressure is finely tuned.Gas after pressure regulation enters Gas mixing valve 4, then from mixed gas outlet 20, enters pipe network after fully mixing by static mixer 15.The first Pneumatic thin film cutting valve 71 and the second Pneumatic thin film cutting valve 72 can cut off the air feed of pipeline at any time, and the first check-valves 81 and the second check-valves 82 can prevent gas backflow in pipeline.Each measuring instrument of air mixing machine forms safety interlock system, comprises and measures the first pressure transmitter 12, temperature transmitter 13, the second pressure transmitter 14 and pressure difference transmitter 11.Parameters in monitoring air mixing machine, guarantees that air mixing machine normally moves in real time.
Above-described embodiment is described preferred embodiment of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims (6)

1. an automatic adjustable flow capacity gas mixing machine, comprise liquefied petroleum air pipe, compressed air line and mist pipeline, liquefied petroleum air pipe is all connected with gaseous mixture pipeline by Gas mixing valve with compressed air line, all pipelines are installed in frame, it is characterized in that: the first Pneumatic thin film cutting valve, the first pressure regulator and pneumatic control valve are installed on described compressed air line successively; The second Pneumatic thin film cutting valve and the second pressure regulator are installed on liquefied petroleum air pipe successively; On gaseous mixture pipeline, static mixer is installed.
2. automatic adjustable flow capacity gas mixing machine according to claim 1, is characterized in that: place, described compressed air line gas access is provided with the first entrance ball valve; Place, liquefied gas petroleum pipeline gas access is provided with the second entrance ball valve.
3. automatic adjustable flow capacity gas mixing machine according to claim 1, is characterized in that: the first check-valves is installed on described compressed air line; The second check-valves is installed on liquefied petroleum air pipe.
4. automatic adjustable flow capacity gas mixing machine according to claim 1, is characterized in that: the mixed gas outlet place of described gaseous mixture pipeline is processed with thief hatch.
5. automatic adjustable flow capacity gas mixing machine according to claim 1, is characterized in that: temperature transmitter and the second pressure transmitter are installed on described liquefied petroleum air pipe.
6. automatic adjustable flow capacity gas mixing machine according to claim 1, is characterized in that: pressure difference transmitter and the first pressure transmitter are installed on described compressed air line.
CN201320594430.1U 2013-09-25 2013-09-25 Automatic flow-adjusted gas mixer Expired - Fee Related CN203494410U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320594430.1U CN203494410U (en) 2013-09-25 2013-09-25 Automatic flow-adjusted gas mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320594430.1U CN203494410U (en) 2013-09-25 2013-09-25 Automatic flow-adjusted gas mixer

Publications (1)

Publication Number Publication Date
CN203494410U true CN203494410U (en) 2014-03-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320594430.1U Expired - Fee Related CN203494410U (en) 2013-09-25 2013-09-25 Automatic flow-adjusted gas mixer

Country Status (1)

Country Link
CN (1) CN203494410U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111318192A (en) * 2020-03-23 2020-06-23 潍坊众成自动化设备有限公司 System and method for automatically proportioning various fuel gases and air according to flow requirements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111318192A (en) * 2020-03-23 2020-06-23 潍坊众成自动化设备有限公司 System and method for automatically proportioning various fuel gases and air according to flow requirements

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20160925

CF01 Termination of patent right due to non-payment of annual fee