CN203069487U - Equivalent air permeability experiment device - Google Patents
Equivalent air permeability experiment device Download PDFInfo
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- CN203069487U CN203069487U CN 201320096001 CN201320096001U CN203069487U CN 203069487 U CN203069487 U CN 203069487U CN 201320096001 CN201320096001 CN 201320096001 CN 201320096001 U CN201320096001 U CN 201320096001U CN 203069487 U CN203069487 U CN 203069487U
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Abstract
The utility model discloses an equivalent air permeability experiment device. A barrel opening of a cylindrical barrel body is matched with a seal cover in a seal mode, so that an air overflowing chamber is formed in the cylindrical barrel body; an air distributor is composed of air guide pipes and circulation pipes; the air guide pipe extends along the round radial direction of the circulation pipes and is communicated with each circulation pipe; air inlets formed on the air guide pie are positioned on coincident center of a circle of the circulation pipes; air outlets are formed on the circulation pipes; the bottom in the air overflowing chamber is provided with an air distributor; an air exhaust port of an air pressure generating device is communicated with a first communication pipe; first gas flow meters are connected in series with the first communication pipe; the first communication pipe is provided with an air inlet through hole through a seal cover at the bottom end; the air distributor runs through the air overflowing chamber, and is communicated to a pipe opening of a U-shaped pipe pressure meter through a second communication pipe; an air exhaust through hole arranged on the air overflowing chamber through a seal cover at the top end is communicated with a third communication pipe; second gas flow meters are connected to the third communication pipe in series; and the third communication pipe is communicated to the other pipe opening of the U-shaped pipe pressure meter through a fourth communication pipe. The equivalent air permeability experiment device provided by the utility model is reasonable and complete in structure, and can detect the equivalent air permeability of different air permeable media which are overlapped into a lamellar shape.
Description
Technical field
The utility model belongs to pore media hydrodynamics technology field, relates to the proving installation, particularly equivalent air penetrability experimental provision that detect different aperture degree and crack stratiform combined material equivalence air penetrability.
Background technology
Air penetrability is the quantitative examination fluid in one of key parameter of pore media flow characteristics, widespread use in petroleum gas, gassy seam gas, water conservancy and pedology area research.Different aperture degree dielectric material has different air penetrabilities, and its air penetrability is the function of factor of porosity.The crack is a kind of special representing form of pore media material, and crack attributive character (shape, physical dimension etc.) keeps funtcional relationship with its air penetrability.Different aperture, fissuted medium material stack combinations are together, its integral material air penetrability is that equivalent air penetrability is the flow through important parameter of this combined material flow characteristics of research fluid, the relevance of integral material air penetrability and single dielectric material air penetrability also needs to be determined by experiment, but the air permeability tester of existing various detection different aperture degree or fissuted medium air penetrability, structure is reasonable, perfect inadequately, can not be well the equivalent air penetrability of the different gas permeability medium that stacks up be detected.
The utility model content
The purpose of this utility model is to provide a kind of equivalent air penetrability experimental provision, and structure is perfect, can detect the ventilative medium equivalence of the difference that is superimposed as stratiform air penetrability.
The purpose of this utility model is achieved in that a kind of equivalent air penetrability experimental provision, comprises by ventilative medium filling jar, air sparger, air pressure generating means, first communicating pipe, second communicating pipe, third connecting pipe, the 4th communicating pipe, first gas meter, second gas flow taking into account the U-tube manometer that has U-shaped communicating pipe and be arranged on intraluminal flow media of U-shaped communicating pipe; U-shaped communicating pipe is corresponding only to have two unlimited mouths of pipe, ventilative medium filling jar is turned to by roll of steel plate and forms cylindrical barrel, end sealing lid and bottom end seal that two ends all have unlimited nozzle naturally and cover and constitute, the bottom end seal lid offers the air inlet through hole that penetrates its wall body, the end sealing lid offers the vent hole that goes out that penetrates its wall body, and the top nozzle of cylindrical barrel and end sealing lid are sealed and matched and bottom nozzle and the bottom end seal lid of cylindrical barrel are sealed and matched down to the air overcurrent chamber of ventilative medium filling jar inner formation sealing; Circulating pipes that radius is different constitute air sparger with all being circular by wireway, adjacent two circulating pipes wherein radius bigger one around another less person of radius, the center of circle of all circulating pipes coincides, wireway through the center of circle of circulating pipe radially to extend along the circle of circulating pipe and to be communicated with each circulating pipe, the unique air intake opening that offers at wireway is positioned at the center of circle that all circulating pipes coincide, and is offering at each circulating pipe to center on the uniform gas outlet of center of circle hoop that it coincides; Be provided with the air sparger of contiguous bottom end seal lid in the indoor bottom of air overcurrent, the exhausr port of air pressure generating means was communicated with first communicating pipe, be used for to measure first gas meter that flow through first communicating pipe and air inlet through hole flow into the flow of the indoor air of air overcurrent being connected in series first communicating pipe, first communicating pipe is successively through the air inlet through hole, the air intake opening that air sparger has, mozzle, circulating pipe and bubbling air overcurrent chamber, gas outlet and by passing to a mouth of pipe of U-tube manometer second communicating pipe, air overcurrent chamber is communicated with the third connecting pipe by going out vent hole, is being connected in series for second gas meter of the flow of measuring the air through going out vent hole inflow third connecting pipe and by passing to another mouth of pipe of U-tube manometer the 4th communicating pipe at the third connecting pipe.
The utility model is made up of cylindrical housings (ventilative medium filling jar), air-channel system (as air sparger, air pressure generating means, first communicating pipe, second communicating pipe, third connecting pipe, the 4th communicating pipe etc.), first gas meter, second gas meter, differential pressure measurement system (U-tube manometer) and air pressure generating means etc., and the cylindrical housings dimensions need be determined by experiment.Different air penetrability pore medias and fissuted medium need be put into cylindrical housings by experimental design, adopt the different ventilative media of thin layer hard net (wire netting) separating adjacent two layers, the hard net answer the order number suitable can with the position its top ventilative medium catch, namely stop its mesh through the hard net to drop to its below, mix mutually to avoid different ventilative holes, fissuted medium.The air sparger that air-channel system has is positioned at the cylindrical housings inner bottom part, and it is used for evenly discharging air to air overcurrent chamber.Above air sparger, insert the ventilative medium of difference of layering successively, and with after the gland bonnet encapsulation cylindrical housings, could test equivalent air penetrability.Cause the experimental data deviation for avoiding ventilative medium to separate with the cylindrical housings inside surface, before inserting ventilative medium, the cylindrical housings inside surface is smeared butter or other stickum of one deck thinner thickness, ventilative medium can be contacted with the cylindrical housings inside surface closely, so just can guarantee the reliability of air penetrability test experiments, carry out theoretical analysis and calculation, experimental verification and correction accurately.The utility model is rational in infrastructure, perfect, can detect the ventilative medium equivalence of the difference that is superimposed as stratiform air penetrability.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is overall sectional structure synoptic diagram of the present utility model;
Fig. 2 is the structural representation of the utility model air sparger.
Embodiment
A kind of equivalent air penetrability experimental provision, as shown in Figure 1 and Figure 2, comprise by ventilative medium filling jar, air sparger (2), air pressure generating means (1), first communicating pipe (3), second communicating pipe (7), third connecting pipe (16), the 4th communicating pipe (14), first gas meter (5), second gas meter (17) and have U-shaped communicating pipe (12) and be arranged on the U-tube manometer of U-shaped communicating pipe (12) intraluminal flow media (11); U-shaped communicating pipe (12) is corresponding only to have two unlimited mouths of pipe, ventilative medium filling jar is turned to by roll of steel plate and forms the cylindrical barrel (10) that two ends all have unlimited nozzle naturally, end sealing lid (19) constitutes with bottom end seal lid (4), bottom end seal lid (4) offers the air inlet through hole that penetrates its wall body, end sealing lid (19) offers the vent hole that goes out that penetrates its wall body, and the top nozzle of cylindrical barrel (10) and end sealing lid (19) are sealed and matched and bottom nozzle and the bottom end seal lid (4) of cylindrical barrel (10) are sealed and matched down to the air overcurrent chamber of ventilative medium filling jar inner formation sealing; Air sparger (2) is made of wireway (25) circulating pipe (23) that radius is different with all being circular, adjacent two circulating pipes (23) wherein radius bigger one around another less person of radius, the center of circle of all circulating pipes (23) coincides, wireway (25) through the center of circle of circulating pipe (23) radially to extend along the circle of circulating pipe (23) and to be communicated with each circulating pipe (23), the unique air intake opening (24) that offers at wireway (25) is positioned at the center of circle that all circulating pipes (23) coincide, and is offering at each circulating pipe (23) to center on the uniform gas outlet (8) of its center of circle hoop that coincides; Be provided with the air sparger (2) of contiguous bottom end seal lid (4) in the indoor bottom of air overcurrent, the exhausr port of air pressure generating means (1) was communicated with first communicating pipe (3), at first gas meter (5) that is being connected in series flow that be used for to measure the indoor air of flow through first communicating pipe (3) and air inlet through hole inflow air overcurrent first communicating pipe (3), first communicating pipe (3) is successively through the air inlet through hole, the air intake opening (24) that air sparger (2) has, mozzle, circulating pipe (23) is with bubbling air overcurrent chamber, gas outlet (8) and by passing to a mouth of pipe of U-tube manometer second communicating pipe (7), air overcurrent chamber is communicated with third connecting pipe (16) by going out vent hole, third connecting pipe (16) be connected in series be used for measuring through go out vent hole flow into third connecting pipe (16) air flow second gas meter (17) and pass to another mouth of pipe of U-tube manometer by the 4th communicating pipe (14).
Installing first three-way pipe (6) that is positioned at outside the air overcurrent chamber at bottom end seal lid (4), first communicating pipe (3) is communicated with air inlet through hole and second communicating pipe (7) simultaneously through first three-way pipe (6), installing second three-way pipe (18) that is positioned at outside the air overcurrent chamber at end sealing lid (19), going out vent hole and be communicated with third connecting pipe (16) and the 4th communicating pipe (14) simultaneously through second three-way pipe (18).
First communicating pipe (3), second communicating pipe (7), third connecting pipe (16) and constitute by hose the 4th communicating pipe (14).
Wireway (25) was made of steel communicating pipe, and circulating pipe (23) was made of copper communicating pipe.
Air pressure generating means (1) is air compressor or pneumatic pump.
The utility model is set the diameter that ventilative medium loads jar according to the experiment needs, and cylindrical barrel 10 adopts the suitable thickness roll of steel plate to make, and cylindrical barrel 10 inner bottom parts of vertically being placed fixedly have air sparger 2; In cylindrical barrel 10, lay ground floor wire netting 22 above air sparger 2, by experimental design, above ground floor wire netting 22, place first kind of pore media 9, lay second layer metal net 21 above first kind of pore media 9, above second layer metal net 21, place fissuted medium 13, lay three-layer metal net 20 above fissuted medium 13, above three-layer metal net 20, place second kind of pore media 15, closed top end gland bonnet on cylindrical barrel 10 top nozzles again, at cylindrical barrel 10 bottom nozzle encapsulation bottom end seal lids, to seal the tube chamber of cylindrical barrel 10, and according to structure shown in Figure 1 the safe connection of remaining part of the present utility model is finished, can test the equivalent air penetrability of the combined different medium that is placed to stratiform, the air inlet through hole of ventilative medium filling jar and the pressure reduction that goes out between the vent hole are displayed at the liquid level difference Δ h shown in the U-tube manometer by the viewed flow media 11 of naked eyes.
51164032) and Xinjiang natural science fund (fund number: 201211A106) the utility model is associated with state natural sciences fund regional fund (fund number:.
Claims (5)
1. equivalent air penetrability experimental provision is characterized in that: comprise by ventilative medium filling jar, air sparger (2), air pressure generating means (1), first communicating pipe (3), second communicating pipe (7), third connecting pipe (16), the 4th communicating pipe (14), first gas meter (5), second gas meter (17) and have U-shaped communicating pipe (12) and be arranged on the U-tube manometer of interior flow media (11) of U-shaped communicating pipe (12); U-shaped communicating pipe (12) is corresponding only to have two unlimited mouths of pipe, ventilative medium filling jar is turned to by roll of steel plate and forms the cylindrical barrel (10) that two ends all have unlimited nozzle naturally, end sealing lid (19) constitutes with bottom end seal lid (4), bottom end seal lid (4) offers the air inlet through hole that penetrates its wall body, end sealing lid (19) offers the vent hole that goes out that penetrates its wall body, and the top nozzle of cylindrical barrel (10) and end sealing lid (19) are sealed and matched and bottom nozzle and the bottom end seal lid (4) of cylindrical barrel (10) are sealed and matched down to the air overcurrent chamber of ventilative medium filling jar inner formation sealing; Air sparger (2) is made of wireway (25) circulating pipe (23) that radius is different with all being circular, adjacent two circulating pipes (23) wherein radius bigger one around another less person of radius, the center of circle of all circulating pipes (23) coincides, wireway (25) through the center of circle of circulating pipe (23) radially to extend along the circle of circulating pipe (23) and to be communicated with each circulating pipe (23), the unique air intake opening (24) that offers at wireway (25) is positioned at the center of circle that all circulating pipes (23) coincide, and is offering at each circulating pipe (23) to center on the uniform gas outlet (8) of its center of circle hoop that coincides; Be provided with the air sparger (2) of contiguous bottom end seal lid (4) in the indoor bottom of air overcurrent, the exhausr port of air pressure generating means (1) was communicated with first communicating pipe (3), at first gas meter (5) that is being connected in series flow that be used for to measure the indoor air of flow through first communicating pipe (3) and air inlet through hole inflow air overcurrent first communicating pipe (3), first communicating pipe (3) is successively through the air inlet through hole, the air intake opening (24) that air sparger (2) has, mozzle, circulating pipe (23) is with bubbling air overcurrent chamber, gas outlet (8) and by passing to a mouth of pipe of U-tube manometer second communicating pipe (7), air overcurrent chamber is communicated with third connecting pipe (16) by going out vent hole, third connecting pipe (16) be connected in series be used for measuring through go out vent hole flow into third connecting pipe (16) air flow second gas meter (17) and pass to another mouth of pipe of U-tube manometer by the 4th communicating pipe (14).
2. equivalent air penetrability experimental provision according to claim 1, it is characterized in that: installing first three-way pipe (6) that is positioned at outside the air overcurrent chamber at bottom end seal lid (4), first communicating pipe (3) is communicated with air inlet through hole and second communicating pipe (7) simultaneously through first three-way pipe (6), installing second three-way pipe (18) that is positioned at outside the air overcurrent chamber at end sealing lid (19), going out vent hole and be communicated with third connecting pipe (16) and the 4th communicating pipe (14) simultaneously through second three-way pipe (18).
3. equivalent air penetrability experimental provision according to claim 1 is characterized in that: first communicating pipe (3), second communicating pipe (7), third connecting pipe (16) and constitute by hose the 4th communicating pipe (14).
4. equivalent air penetrability experimental provision according to claim 1, it is characterized in that: wireway (25) was made of steel communicating pipe, and circulating pipe (23) was made of copper communicating pipe.
5. equivalent air penetrability experimental provision according to claim 1, it is characterized in that: air pressure generating means (1) is air compressor or pneumatic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096001 CN203069487U (en) | 2013-03-03 | 2013-03-03 | Equivalent air permeability experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096001 CN203069487U (en) | 2013-03-03 | 2013-03-03 | Equivalent air permeability experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069487U true CN203069487U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320096001 Expired - Fee Related CN203069487U (en) | 2013-03-03 | 2013-03-03 | Equivalent air permeability experiment device |
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| CN (1) | CN203069487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181197A (en) * | 2014-09-13 | 2014-12-03 | 新疆维吾尔自治区煤炭科学研究所 | Underground coal fire comprehensive experiment device |
-
2013
- 2013-03-03 CN CN 201320096001 patent/CN203069487U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181197A (en) * | 2014-09-13 | 2014-12-03 | 新疆维吾尔自治区煤炭科学研究所 | Underground coal fire comprehensive experiment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20180303 |