CN2242446Y

CN2242446Y - Apparatus for measuring volume of gas

Info

Publication number: CN2242446Y
Application number: CN 95214328
Authority: CN
Inventors: 王静波
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-28
Filing date: 1995-06-28
Publication date: 1996-12-11
Anticipated expiration: 2005-06-28

Abstract

The utility model discloses a device for measuring volume of gas, which is composed of a two way electromagnetic valve of a gas circuit pipeline, a constant temperature box, three-way electromagnetic valves, a gas collecting box and a measuring electrode. Gas passes through a pipeline (2) and an electromagnetic valve (1) to enter a heat exchanging tube inside the constant temperature box (6). The heat exchanging tube is contained in liquid heat conducting medium (5), and an electric heating tube (4) is arranged in the liquid heat conducting medium to heat, so the gas in the heat exchanging tube keeps the constant temperature. The gas passes through the three-way electromagnetic valves (8) and (9) to enter the gas collecting box (10), and the gas is cooled by the cooling water in the gas collecting box. After the gas is got rid of water vapor, the measuring electrode (12) arranged in the gas collecting box is used for measuring the effective volume of the gas. As a result, the production condition of gas generating stoves is scientifically adjusted to achieve the best gas producing effect.

Description

A kind of coal gas gas volume measurement mechanism

The utility model relates to the coal gas volume measurement techniques, especially relates to the measurement mechanism that producer gas generator produces the available gas volume.

Generally pyroreaction in producer gas generator produces coal gas by coal and water vapour, except that effective constituent, also contains a large amount of water vapours in the coal gas.The coal gas of given volume, the volume of the little then water vapour of available gas volume is just big, and the water vapour volume is big, waste a large amount of steam on the one hand, water vapour has been taken away a large amount of heat in the gas stove on the other hand, and furnace temperature is reduced, gas yield then descends, if the water vapour volume is too small then can make in the producer gas generator furnace temperature too high in the coal gas, cause the coal clinkering, producer gas generator can not be worked.If can in time measure available gas volume size in the coal gas that gas stove produces, just can infer the height of furnace temperature in the producer gas generator, the water vapour that adds how much, on this basis the working condition of producer gas generator is carried out the adjusting of science, measurement mechanism of the prior art generally is to connect a gas-holder in the producer gas generator exit by valve, the coal gas that takes out certain volume in gas-holder measures with the composition measurement instrument that the content of available gas draws the conclusion of decomposition reaction in the producer gas generator the coal gas, but, because the coal gas available gas volume in the gas-holder is directly to be subjected to temperature height in the producer gas generator, the pressure size, the steam addition what etc. factor influence and constantly change, and the direct mensuration of furnace temperature also is difficult, so, the degree of accuracy as a result that existing measurement mechanism is measured is very low, does not reach the requirement of rational control producer gas generator furnace temperature and quantity of steam.

The purpose of this utility model is to provide a kind of measurement mechanism of new coal gas available gas volume, and this device can make coal gas keep volume identical when each the measurement, and temperature is identical, and pressure is identical, thereby improves the measuring accuracy of coal gas available gas volume.

In order to achieve the above object, the utility model is to realize like this, producer gas generator gas outlet pipeline is communicated with a constant temperature oven import by two three-way electromagnetic valves, heat exchanger tube is set in the constant temperature oven, fill the solid conductive heat medium in the heat exchanger tube, the constant temperature oven air intake opening is communicated with the heat exchanger tube bottom, the heat exchanger tube top is slidingly matched and is located in a turriform seal closure, the fill liquid heat-conducting medium contains to live the turriform seal closure in constant temperature oven, on constant temperature oven inwall above the heat-conducting liquid, level switch is housed comes the control electromagnetic valve break-make, pull at the bottom of the constant temperature oven and settle electric heating body and probe temperature meter, heating to heat-conducting liquid makes it temperature constant, after coal gas enters heat exchanger tube from two three-way electromagnetic valves, because heat exchanger tube is among the heat-conducting liquid of temperature constant contains, and also is constant so coal gas passes through its temperature of back the solid dielectric in heat exchanger tube.Enter the sealed air chamber of turriform seal closure and heat-conducting liquid formation from heat exchanger tube top air flue when coal gas after, under the promotion of pressure, heat-conducting liquid medium liquid level in the constant temperature oven raises, after running into the level switch on the constant temperature oven, two-way electromagnetic valve is closed, air inlet stops, and the variable volume that liquid level raises is exactly the constant temperature volume of the coal gas of getting, when control circuit is switched on after valve is opened now three, constant temperature coal gas enters plenum chamber, placement of multiple layers heat sink in the plenum chamber, button cover one matrix seal closure is settled measuring sonde at matrix seal closure high spot on the heat sink, fills the circulating cooling liquid body in plenum chamber, after coal gas is by plenum chamber, be cooled, the water vapour evaporation, measuring sonde can be measured the volume of available gas.

Adopt said apparatus to carry out the measurement of coal gas available gas volume, because coal gas is identical in temperature, carry out under the condition that pressure is identical, volume change is identical, thereby improved measuring accuracy greatly,, judged producer gas generator temperature height by the variation of the long-pending volume of coal gas available gas, institute adds the quantity of steam size, the available gas that the adjusting of the science of carrying out produces producer gas generator is maximum, and the steam and the coal that use are minimum, reach best aerogenesis effect.

Below in conjunction with accompanying drawing and specific embodiments the utility model is done the further thin explanation in ocean.

Fig. 1 is a work synoptic diagram of the present utility model

Fig. 2 is the constant temperature oven structural representation

Fig. 3 is the vertical view of Fig. 2

Fig. 4 is the plenum chamber structural representation

Fig. 5 is the vertical view of Fig. 4

Fig. 1 has shown work synoptic diagram of the present utility model, as can be seen from Figure, the coal gas that produces when producer gas generator enters heat exchanger tube (17) constant temperature oven (6) in from outlet conduit (2) by two three-way electromagnetic valves (1) with certain pressure, steel ball between heat exchanger tube (18) passes through the gap, at this moment, three-way solenoid valve (8) C mouth is closed, another three-way solenoid valve (9) A mouth is closed, coal gas can not pass through, be placed with turriform seal closure (16) and be slidingly matched on the heat exchanger tube (17), the heat conduction machine oil (5) that turriform seal closure (16) is inclusive in the constant temperature oven is middle, after coal gas passes from heat exchanger tube (17), can only enter in the machine oil by the air flue (23) of heat exchanger tube (17) outer wall.Because the pressure of coal gas rises machine oil (5) liquid level in the constant temperature oven (6), in the turriform seal closure, form sealed air chamber with machine oil (5) liquid level, the machine oil liquid level rises to certain altitude, make float liquid level switch (3) action, close two three-way electromagnetic valves (1), air inlet stops, in this course, because pull and has settled electric heating tube (4) at the end in constant temperature oven, constantly give constant temperature oven (6) inner engine oil (5) heating, and monitor oily warm by the probe temperature meter (7) that is placed in the machine oil, make the oil temperature keep stationary temperature, because air chamber is inclusive between constant temperature has nothing to do, so the coal gas in the air chamber also keeps corresponding temperature, Fig. 2, Fig. 3 has then clearly shown the structure of constant temperature oven.When two three-way electromagnetic valves were closed, control circuit made three-way solenoid valve (9) A mouth open the C mouth and cuts out, and constant temperature coal gas enters plenum chamber (10) by the B mouth, and Fig. 4, Fig. 5 are the plenum chamber structural representation.(30) are pulled in the placement of multiple layers heat radiation in plenum chamber (10), heat sink (30) is gone up a spill seal closure (26) is installed, at spill cover high spot potential electrode (32) is housed, the recirculated cooling water (11) that certain altitude is arranged in the plenum chamber (10), after the constant temperature coal gas in the constant temperature oven enters plenum chamber, heat conduction machine oil (5) liquid level descends in the constant temperature oven, the float liquid level switch motion, by control circuit three-way solenoid valve (8) C mouth is closed, when coal gas enters plenum chamber, chilled water (11) liquid level is raise, in spill seal closure (28), just formed air chamber, when constant temperature coal gas after recirculated cooling water cooling, the water vapour evaporation, air chamber diminishes, the chilled water liquid level falls after rise, the height change of chilled water liquid level has just reflected coal gas available gas volume in the spill seal closure, in order to make the interior chilled water of plenum chamber (10) keep certain height to be provided with overflow plate (27), unnecessary water is discharged from overflow plate (27) top, present embodiment is measured the chilled water liquid level, adopted 15 electrodes to be installed in spill seal closure high spot successively in proper order, the unsettled formation path with chilled water in electrode (32) below, when the chilled water liquid level descends, must have electrode and chilled water to form opens circuit, light emitting diode this moment (13) is luminous, the certain gas volume of each light emitting diode representative, after measurement was finished, programme control circut was opened three-way solenoid valve (9) C mouth, emptying gas is then finished one-shot measurement.

Fig. 2 has also shown the rabbling mechanism in the constant temperature oven, in order to remove the middle impurity of coal gas, makes the measurement of coal gas available gas more accurate.A stirring rod (23) is housed along the center in the turriform seal closure in constant temperature oven (6), stirs to hold in both hands and be welded with pawl (22), stirring rod (23) is placed on seeks in the middle of the heat pipe (17), at turriform seal closure top one crank (14) is installed, can regularly rotate turriform seal closure (16) stirs stirring rod (23) between steel ball (18), the impurity that filters out when making coal gas by steel ball is removed, and the impurity that is eliminated is discharged from foreign material escape hole (21) by screen cloth (20).

Claims

1. the measurement mechanism of a coal gas gas volume, it is by gas path pipe, two three-way electromagnetic valves, the constant temperature oven three-way solenoid valve, plenum chamber and measurement instrument are formed, it is characterized in that: be provided with heat exchanger tube (17) in the constant temperature oven (6), a turriform seal closure (16) is located in the cooperation of heat exchanger tube (17) top slide, fill solid conductive heat medium (18) in the heat exchanger tube (17), be filled with liquid thermal conductivity media (5) in the constant temperature oven (6), the turriform seal closure is contained, on the constant temperature oven inwall of heat-conducting liquid medium top liquid level float switch (3) is housed, electric heating body (4) and thermometer probe (7) are housed in the constant temperature oven heat-conducting liquid; The constant temperature oven inside exhaust pipe connects plenum chamber 910 by three-way electromagnetic valve (8) and three-way solenoid valve (9)) draft tube (29), multilayer heat sink (30) is installed in the plenum chamber (10), matrix seal closure (28) is installed on the heat sink top, matrix seal closure high spot is equipped with many measurements electrode (32), the recirculated cooling water (11) of filling certain altitude in the plenum chamber;

2. the survey reason device of coal gas gas volume according to claim 1, it is characterized in that: stirring rod (23) is equipped with at the interior center of turriform seal closure (16), install on the stirring rod and stir pawl (22), turning handle (14) is housed and has charge door at turriform seal closure top, charge door is furnished with screw plug (15);

3. by the measurement mechanism of the described coal gas gas volume of claim 1, it is characterized in that: heat exchanger tube (17) bottom is equipped with screen cloth (20), and the base plate place has the foreign material escape hole over against the screen cloth below, and the foreign material escape hole is furnished with lid (21);

4. by the measurement mechanism of the described coal gas gas volume of claim 1, it is characterized in that: overflow plate (27) and cooling water inlet (33) and outlet (31) are installed plenum chamber 911);

5. by the measurement mechanism of the described coal gas gas volume of claim 1, it is characterized in that: it is that the height different order is arranged and is connected with light emitting diode (13) successively that potential electrode (30) is installed on the spill seal closure (28).