CN1070277C - Carrier gas evaporation pentane pipeline gas conveyer - Google Patents

Carrier gas evaporation pentane pipeline gas conveyer Download PDF

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Publication number
CN1070277C
CN1070277C CN 97109156 CN97109156A CN1070277C CN 1070277 C CN1070277 C CN 1070277C CN 97109156 CN97109156 CN 97109156 CN 97109156 A CN97109156 A CN 97109156A CN 1070277 C CN1070277 C CN 1070277C
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pressure
gas
storage tank
oil storage
control
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CN1204019A (en
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魏德军
买万成
邓富贵
张发明
陈涛
熊祖强
梅学辉
孙春岩
金勇�
高鹏远
王艳涛
耿海波
魏明胜
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Abstract

The present invention relates to a carrier gas evaporation pentane pipeline gas generator which is composed of an automatic control circuit for controlling temperature, pressure and liquid level, an air compressor, an air transformer, a buffer tank, an oil storage tank, a surge tank, a pressure regulating box for fuel gas and an explosion-proof device. The temperature of a thermal liquid medium with greater specific heat is controlled to indirectly control oil temperature. The air transformer and a pressure gauge on the buffer tank are used for dually controlling the evaporating pressure of oil. The surge tank and the pressure regulating box for fuel gas are used for controlling the pressure of the fuel gas so as to stabilize the density of the fuel gas. In addition, the gas generator is safe and reliable because of being provided with an electrostatic preventing device and an anti-back fire device for further ensuring safety.

Description

Carrier gas evaporation pentane pipeline gas conveyer
The present invention relates to a kind of liquid fuel gasification pipe delivery of fuel gas generating means, particularly relate to a kind of by stably controlling the line transportation gasifier section of temperature and pressure with the gas-carrying evaporation #30 petroleum ether (or claim light oil, its main component is a pentane) of control gas concentration.
China's city domestic fuel also adopts packed petroleum liquid gas and piped gas except that coal now, and the packed petroleum liquid gas must often change a bottle aerating, brings many inconvenience to the user; The construction technique complexity at station takes place in piped gas, and is costly, is unsuitable for popularizing, and China has only the minority big city just may set up.Be that the combination gas of the petroleum ether (or claiming light oil) of main component has calorific value height (high 3 times than town gas), avirulent, cheap characteristics with the pentane, to become new domestic fuel, and be convenient to line transportation, can be the resident living sub-district that is difficult to realize samll cities and towns in piped gas vast the pipeline gas supply is provided.Through patent retrieval, with patent No. ZL92209122.6 is example, in the combination gas generating means of prior art based on pentane, the heating element of temperature controlling device is arranged on the inside (or outside) of evaporating pot, light oil (based on pentane) is directly heated, and heater is controlled by temperature control element, and its drawback is: if temperature control element is malfunctioning, the heating element overtemperature of always working is prone to accidents; Because the specific heat of light oil (based on pentane) is little, the latent heat of vaporization is big, when the gasification load is uneven, with regard to restive temperature.Prior art is not adopted the effective measures of control evaporating pressure, just pressure gauge is set on oil storage tank, is used to understand the pressure condition of gas, so the concentration of pentane partial vapour pressure and mixed gas just can not obtain stable control.Prior art adopts combustible gas concentration analysis probe to measure combustible gas concentration, the proportion expression mortor operated valve is regulated the concentration that amount that secondary directly adds air is controlled mixed gas, if when analysis probe or proportion expression mortor operated valve are malfunctioning, will make mixture strength reach the explosive gas scope, cause peril.
Purpose of the present invention is exactly in order to overcome deficiency of the prior art, a kind of line transportation gasifier section of small-sized gas-carrying evaporation pentane is provided, need not directly to oil storage tank body or the heating of the petroleum ether in it, by controlling total pressure in bigger heat-carrying agent temperature of specific heat and the control oil storage tank, to stablize pentane partial vapour pressure and gas concentration, realize Automatic Control, once startup, then 24 hours automatic air feed of whole day need not to operate manually.
Purpose of the present invention can realize by following technical measures: a kind of carrier gas evaporation pentane pipeline gas conveyer is characterized in that: be connected in sequence through adapter by air compressor, air transformer, knock out drum, oil storage tank, surge tank, combustion gas pressure-regulating box, antiriot device.Wherein, oil storage tank is arranged in the bigger liquid medium groove of specific heat.The air nozzle that stretches into the oil storage tank bottom is horizontal straight rod type, and spray orifice is downward.Also comprise control oil storage tank liquid level, control surge tank pressure, the automatic control circuit of the sample tap oxygen content of the adapter of control combustion gas pressure-regulating box and antiriot device.In antiriot device and combustion gas pressure-regulating box, do not put dual fireproof tempering device.
Liquid medium groove described in the technical measures of the present invention can also be tank.
Can also be provided with the automatic heating device that this liquid medium can be heated to 4 ℃～20 ℃ in the liquid medium groove described in the technical measures of the present invention.
The spray orifice of the air nozzle described in the technical measures of the present invention is evenly distributed, and the spray orifice aperture is 0.5mm～1.5mm.
Because steam is the function of temperature, according to vapor pressure equation lg Pip Pvp = Vc ( P - Pvp ) 189 T , Have only equilibrium temperature and total power all within the specific limits, the dividing potential drop of pentane steam is only stable, and just the concentration of mixed gas is only stable.
Oil storage tank has at least 2/3 to immerse in the tank, and is warm, safe and reliable by the oil that the temperature of the bigger heat-carrying agent water of control specific heat is controlled in the oil storage tank indirectly.Electric heater and Bai Keman thermometer are set in WATER AS FLOW MEDIUM.The control point of water temperature Link to each other through lead with the temperature control system of automatic control box, control water temperature is between 4 ℃～20 ℃, oily temperature is remained between-15 ℃～50 ℃, temperature control system provides switching signal by the temperature measuring element Bai Keman thermometer of sensitivity, whether electric coil with the control auxiliary reclay get, utilize the contactor of the contact control electric heating element of auxiliary reclay whether to move, with the work of the electric heater in the control media water whether, control the temperature of heat-carrying agent water then.Temperature indicator is set, when water temperature is crossed when low, by the empty system of temperature point on the automatic control box Export an electrical signal, after the Automatic Control Unit of automatic control box is handled, export a switching signal, realize adding automatically temperature control.According to user's request (be the size of the pentane gas amount of carrying, institute's calorific requirement how much), electric heater can be divided into many groups.The charged contact pressure table of magnetic column type is set, pressure control point on the surge tank
Figure C9710915600044
Link to each other with the control pressurer system of automatic control box.Air transformer adopts RTJ series automatic type air transformer.Air pressure (being the oil storage tank stagnation pressure) through air with depressor and the dual control of surge tank upward pressure table; both guaranteed safety; but voltage stabilizing interlocking running automatically again; stagnation pressure in the oil storage tank is realized a certain particular value of fully-automatic constant pressure between 0.02MPa～0.1MPa; remain unchanged; and overvoltage protection is arranged, can adjust the pressure in the oil storage tank at any time.The stagnation pressure purpose is to make the pentane vapor partial pressure between 0.001KPa～0.008MPa in the control oil storage tank.Pressure superelevation tutorial light is set on the automatic control box.When the pressure superelevation in the tank body, pressure control point
Figure C9710915600045
Export an electrical signal, after the Automatic Control Unit of automatic control box is handled, export a switching signal, realize the pressure limiting purpose.
Level meter is set on the oil storage tank, adopts control interlocking automatically, the liquid level control point on the oil storage tank
Figure C9710915600046
Link to each other with the tank level control system of automatic control box.Tutorial light and alarm bell are set on automatic control box, and acousto-optic warning, the pasta in the control oil storage tank are not less than 1/3 height of tank body.When the liquid level in the oil storage tank is lower than 1/3 position of tank body, by signal of liquid level control point automatic control of liquid device output, after the Automatic Control Unit of automatic control box is handled, export a switching signal, report to the police by DLC electric bell and tutorial light, and cut off the power supply of air compressor.
Bottom in the oil storage tank body is provided with air nozzle, structural type can adopt pipe or centipede type (deciding on the consumption size) anyhow, injection diameter is less, in 0.5mm～1.5mm scope, be directed downwards the oil-feed of carrier gas drum, oppositely rise again, oil is stirred better, control the spray orifice airspeed simultaneously about 1m/s, air nozzle must not expose pasta.
By lead ground connection, with antistatic, the static that produces in the time of can be with gas-carrying evaporation is eliminated at any time, guarantees ten thousand yuan of one mistake, and is safe and reliable with air nozzle, tank body and pipeline.
On the combustion gas pressure-regulating box pressure gauge is set, combustible gas after the pressure regulation of combustion gas pressure-regulating box, reaches between 1KPa～5KPa gaseous-pressure through the pressure stabilizer voltage stabilizing again, guarantees safety.
Sample tap place at combustion gas pressure-regulating box and antiriot device connecting tube is provided with ANALYZER, measures gas concentration, guarantees that gas concentration is greater than 25%.Because the explosion limit of the mixed gas of Ministry of Construction regulation is 14%～7.6% (volume ratio), the gas concentration of this device is higher than the twice of upper explosive limit, and is safe and reliable, and when gas concentration＜25%, the oxygen splitter has autoalarm.
In antiriot device and combustion gas pressure-regulating box, dual fireproof tempering device is set, the higher material of the heat conductivity of in antiriot device, packing into (as copper etc.), during with fire, wire can scatter heat rapidly, reduce temperature, to reach the fire extinguishing purpose, the structure of combustion gas pressure-regulating box itself also has fireproof tempering device in addition, when being tempering, outlet pressure can rise rapidly, when outlet pressure surpasses 1.25 times of set pressure, just closes gas outlet, cut off the combustible gas source of the gas, put out a fire with this.
The present invention has many advantages: 1, be the combination gas calorific value height (high 3 times) of component than calorific value of gas with the pentane, and avirulent, cheap; 2, this device can be and is difficult to realize that the middle samll cities and towns of piped gas provide pipeline gas, the gas supply of small town citizen biotope in being applicable to; 3, this device is realized Automatic Control, and once startup, 24 hours automatic air feed of whole day need not to operate manually; 4, this device is by the temperature of control heat-carrying agent, and control oil temperature is safe and reliable indirectly; 5, this device adopts dual-pressure control, realizes fully-automatic constant pressure control, and the overvoltage protection measure is arranged, and avoids accident to take place; 6, this device adopts control interlocking and acousto-optic warning automatically, so that administrative staff handle; 7, this device compliance with environmental protection requirements, samll cities and towns are coal-fired or the combustion bavin causes in the improvement environmental pollution and destruction.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a working principle schematic representation of the present invention;
Fig. 2 is a temperature control heating equipment schematic representation;
Fig. 3 is the automatic control box circuit theory diagrams.
Below in conjunction with accompanying drawing the present invention is described in further detail:
As shown in Figure 1, air compressor 1 is gone into to manage a with air and is communicated, by connecting tube C 1, link to each other with air transformer 15 through a ball valve 16; The charged contact pressure table of magnetic column type is set on the knock out drum 2, passes through pressure control point
Figure C9710915600051
Link to each other through lead with automatic control box 17, knock out drum 2 is by connecting tube C 2, C 3Link to each other connecting tube C with oil storage tank 4 with air transformer 15 respectively 3Straight cutting is gone into the bottom of oil storage tank 4, and terminal horizontal is provided with air nozzle 5, and oil storage tank 4 communicates with oil inlet pipe b through stop valve 14, and a safety valve 13 is set on the oil storage tank 4, and level meter 12 is set, by the liquid level control point
Figure C9710915600052
Link to each other through lead with automatic control box 17, the WATER AS FLOW MEDIUM 18 in the tank 7 is the oil storage tank body of submergence 2/3 at least, and electric heater 6 and Bai Keman thermometer 3 are set in the WATER AS FLOW MEDIUM 18, passes through temperature control point
Figure C9710915600061
Link to each other through lead with automatic control box 17, as shown in Figure 2, electric heater 6 is by the KA of lead and automatic control box 17 3Link to each other, Bai Keman thermometer 3 is by the K of the Automatic Control Unit ZK of lead and automatic control box 17 4Link to each other.Oil storage tank 4 is through connecting tube C 4Link to each other with surge tank 8; Surge tank 8 is through connecting tube C 5Link to each other with combustion gas pressure-regulating box 9, on the combustion gas pressure-regulating box 9 pressure gauge is set
Figure C9710915600062
, combustion gas pressure-regulating box 9 is through connecting tube C 6Link to each other connecting tube C with antiriot device 10 6One stop valve 11 is set, is communicated with sample tap, the sample tap place establishes oxygen analyzer; Antiriot device 10 goes out to manage d with combustion gas and links to each other.The combustion gas of this device is carried and finished like this: air is after air compressor 1 reaches certain pressure, enter air transformer 15, pressure regulation after knock out drum 2 enter in the air nozzle 5 of oil storage tank 4, in course of injection, produce a large amount of bubbles, bubble by oil storage tank 4 bottoms in the process of top motion, make gasifications such as liquid pentane, and directly enter in the surge tank 8 by the top of oil storage tank 4, gas concentration after the voltage stabilizing is higher than more than the twice of upper explosive limit, to 9 pressure regulation of combustion gas pressure-regulating box, send in the antiriot device 10 at last, go out to manage d through combustion gas and send into every family.
Automatic control box 17 is realized the Automatic Control of this device, and as shown in Figure 3, Automatic Control Unit ZK is the conventional automatic control circuit of control liquid level, air pressure, oxygen content, during work, connects automatic control box power switch K earlier, L 1Be power supply indicator, press start button SB then 2, make the KM coil charged, the KM contact on the adhesive main circuit, the motor of connection air compressor
Figure C9710915600063
Power supply, P realizes automatic control by the air compressor pressure K switch.Air compressor is inflated automatically, when pressure air compressor when 0.2MPa is following starts, stops when 0.5MPa is above.
Cross when low when the temperature in the oil storage tank body, pass through temperature control point
Figure C9710915600064
Export an electrical signal and give K 4, give KA by the processing of Automatic Control Unit ZK and by switching signal of K6 output then 3, pass through KA 3Realize adding automatically temperature control.L 3Be temperature indicator.
When the pressure superelevation in the oil storage tank body, pressure control point
Figure C9710915600065
Export the K of electrical signal in Automatic Control Unit ZK 3, after Automatic Control Unit ZK handles, give KA by switching signal of K output 1, pass through KA 1Realize cutting off the power supply of air compressor, reach the purpose of pressure limiting.L 2Be pressure superelevation tutorial light.
When the pasta liquid level in the oil storage tank body is crossed when low, by the liquid level control point Export an electrical signal and give the K of Automatic Control Unit ZK 5, after Automatic Control Unit ZK handles, by K 1Exporting a switching signal realizes KA 2Control, pass through KA 2Realize reporting to the police, and cut off the power supply of air compressor, prevent that air nozzle from exposing pasta.DL is the liquid level alarm bell, L 4Be the liquid level tutorial light.
In the circuit diagram, T is the power transformer of Automatic Control Unit ZK; M is the motor of air compressor; R is a fuse; SB 1Be stop button; KM 1, KA 1, KA 2, KA 3Be auxiliary reclay.
Embodiment:
Family dependents' building is seven layers, four unit, each unit 14 families, totally 56 families, 0.006 cube of average each household per minute gas consumption, the total maximum air demand of per minute is 0.336 cube, so the air compressor volume is got 0.4 cubic metre, the knock out drum volume is got 0.2 cubic metre, about 500/ kilogram of every monthly mortgage oil consumption, so the oil storage tank volume is elected 3 cubes as, 1.5 tons of charges of oil, oil level must not be lower than 1/3 of oil storage tank body, adding once oil can use about 3 months, the surge tank volume is got 0.5 cubic metre, and the aperture of air nozzle is 1mm, establishes 50 spray orifices, the medium water temperature is 4～5 ℃ during winter, when being lower than 4 ℃, just heat automatically, during summer, the medium water temperature can reach 20 ℃, water logging there is not the oil storage tank body must not be less than 2/3, and oil storage tank body pressure is 0.06MPa, and gas concentration is controlled at about 25%.
Automatic control box is finished whole unit temp control, pressure control and liquid level control.During work, as long as by logical automatic control box power supply, all carry out automatically.At first, air compressor is inflated automatically, the air pressure-regulating box carries out pressure regulation to air when inflating after, after knock out drum control air pressure, enter air nozzle again, spray the back and form bubble, by control water temperature, control oil temperature gasifies to the oil in the oil storage tank indirectly, form the combustible gas that insatiable hunger is closed, degree of saturation is about 80%, and the combustible gas of formation after the surge tank voltage stabilizing, transfers to 3KPa through the combustion gas pressure-regulating box more again, through antiriot device, send into every family.
Anti-static device and dual fireproof tempering device are set, to guarantee safety.

Claims (5)

1, a kind of carrier gas evaporation pentane pipeline gas conveyer is characterized in that: by air compressor (1), air transformer (15), knock out drum (2), oil storage tank (4), surge tank (8), combustion gas pressure-regulating box (9), antiriot device (10) through taking over (a, b, d, c 1～c 6) be connected in sequence; Wherein, oil storage tank (4) is arranged in the bigger liquid medium groove (7) of specific heat; The air nozzle (5) that stretches into oil storage tank (4) bottom is horizontal straight rod type, and spray orifice is downward; Also comprise control oil storage tank (4) liquid level, control surge tank (8) pressure, the adapter (C of control combustion gas pressure-regulating box (9) and antiriot device (10) 6) the automatic control circuit of sample tap oxygen content; In antiriot device (10) and combustion gas pressure-regulating box (9), dual fireproof tempering device is set.
2, carrier gas evaporation pentane pipeline gas conveyer according to claim 1 is characterized in that: described liquid medium groove (7) is a tank (7).
3, carrier gas evaporation pentane pipeline gas conveyer according to claim 1 and 2 is characterized in that: be provided with the automatic heating device that this liquid medium can be heated to 4～20 ℃ in the described liquid medium groove (7).
4, carrier gas evaporation pentane pipeline gas conveyer according to claim 1 and 2 is characterized in that: the spray orifice of described air nozzle (5) is evenly distributed, and the spray orifice aperture is 0.5mm～1.5mm.
5, carrier gas evaporation pentane pipeline gas conveyer according to claim 3 is characterized in that: the spray orifice of described air nozzle (5) is evenly distributed, and the spray orifice aperture is 0.5m～1.5mm.
CN 97109156 1997-06-27 1997-06-27 Carrier gas evaporation pentane pipeline gas conveyer Expired - Fee Related CN1070277C (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893257B (en) * 2010-08-04 2012-07-25 济南海普电力节能科技有限公司 System for ignition and stable combustion of pulverized coal fired boiler by using natural gas
CN102278600A (en) * 2011-08-15 2011-12-14 博思特能源装备（天津）股份有限公司 Electric/pneumatic controller for gas pressure control system
CN103322411B (en) * 2013-07-16 2015-07-22 兖矿集团有限公司 Chemical system stoppage protective device

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Correction item: Co-applicant

Correct: Xiong Zuqiang|Jin Yong|Mai Wancheng|Deng Fugui|Geng Haibo|Zhang Faming|Chen Tao|Mei Xuehui|Sun Chunyan|Gao Pengyuan|Wang Yantao|Wei Mingsheng

False: Xiong Zuqiang|Jin Yong|Mai Wancheng|Deng Fugui

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Volume: 15

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Free format text: CORRECT: CO-APPLICANT; FROM: XIONG ZUQIANG JIN YONG MAI WANCHENG DENG FUGUI TO: XIONG ZUQIANG JIN YONG MAI WANCHENG DENG FUGUI GENG HAIBO ZHANG FAMING CHEN TAO MEI XUEHUI SUN CHUNYAN GAO PENGYUAN WANG YANTAO WEI MINGSHENG

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Free format text: CORRECT: CO-APPLICANT; FROM: XIONG ZUQIANG JIN YONG MAI WANCHENG DENG FUGUI TO: XIONG ZUQIANG JIN YONG MAI WANCHENG DENG FUGUI GENG HAIBO ZHANG FAMING CHEN TAO MEI XUEHUI SUN CHUNYAN GAO PENGYUAN WANG YANTAO WEI MINGSHENG

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