CN202471543U - Sludge specific resistance measuring device - Google Patents

Sludge specific resistance measuring device Download PDF

Info

Publication number
CN202471543U
CN202471543U CN2012200134924U CN201220013492U CN202471543U CN 202471543 U CN202471543 U CN 202471543U CN 2012200134924 U CN2012200134924 U CN 2012200134924U CN 201220013492 U CN201220013492 U CN 201220013492U CN 202471543 U CN202471543 U CN 202471543U
Authority
CN
China
Prior art keywords
buchner funnel
mud
filter paper
cup
measurement mechanism
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
CN2012200134924U
Other languages
Chinese (zh)
Inventor
黄忠臣
韩芳
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.)
Beijing University of Civil Engineering and Architecture
Original Assignee
Beijing University of Civil Engineering and Architecture
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 Beijing University of Civil Engineering and Architecture filed Critical Beijing University of Civil Engineering and Architecture
Priority to CN2012200134924U priority Critical patent/CN202471543U/en
Application granted granted Critical
Publication of CN202471543U publication Critical patent/CN202471543U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Sampling And Sample Adjustment (AREA)

Abstract

The utility model discloses a sludge specific resistance measuring device and belongs to the field of measuring devices. The sludge specific resistance measuring device comprises a Buchner funnel, a metering system, a connecting pipe, a pressure buffer tank, an oil-free vacuum pump, a vacuum meter and a fixed support, wherein the Buchner funnel consists of a sludge cup, a Buchner funnel base, filter paper and a filter paper fixing ring. The sludge specific resistance measuring device has the advantages of simple structure, simplicity in operation, convenience for filter paper change, definite principle and accurate measurement, and can meet the needs regarding sludge specific resistance measurement.

Description

Mud resistivity measurement mechanism
Technical field
The utility model relates to a kind of measurement mechanism, relates in particular to a kind of mud resistivity measurement mechanism.
Background technology
In colleges and universities' " water treatment experiment technology " course, sewage treatment plant and related scientific research unit, need to use mud resistivity measurement mechanism.Present most of mud resistivity measurement mechanism exists filter paper to stack complicated operation, pressure transient, and Buchner funnel and filter paper contact plane leak gas easily, and interactional shortcoming between the device filter cylinder is decided in many translocations.
Summary of the invention
Based on above-mentioned existing in prior technology shortcoming, the utility model embodiment provide a kind of structure succinct, simple to operate, be convenient to change filter paper and measure mud resistivity measurement mechanism accurately.
The purpose of the utility model realizes through following technical scheme:
The utility model embodiment provides a kind of mud resistivity measurement mechanism, comprising:
Buchner funnel, metering system, connecting pipe, pressure surge tank, oilless vacuum pump, vacuum meter and fixed support; Buchner funnel, metering system, pressure surge tank and vacuum meter all are arranged on the fixed support; Buchner funnel is connected with metering system, pressure surge tank, connecting pipe and oilless vacuum pump successively; Vacuum meter is arranged on the pressure surge tank, it is characterized in that, said Buchner funnel comprises:
Buchner funnel base, mud cup, filter paper set collar and filter paper; Wherein,
Said Buchner funnel base upper end is provided with mud cup bayonet socket, and the lower end is provided with leakage fluid dram;
The cup of said mud cup bottom is provided with the portion of clamping outward, is fastened on through the portion of clamping on the mud cup bayonet socket of said Buchner funnel base;
The wall of cup bottom of said mud cup is provided with and clamps the hole, and said filter paper set collar is provided with and the said corresponding support in hole that clamps, and said filter paper set collar can clamp the wall of cup bottom that is fixed on said mud cup through said support;
Said filter paper is arranged on the wall of cup bottom of said mud cup through said filter paper set collar.
In the said apparatus, said filter paper set collar is a loop configuration, and support vertically is arranged on its ring body.
In the said apparatus, the wall of cup of said mud cup bottom is provided with a plurality of equally distributed holes that clamp, and said filter paper set collar is provided with and said a plurality of corresponding a plurality of supports in hole that clamp.
In the said apparatus, said Buchner funnel also comprises:
Bu Shi Buchner funnel orifice plate and grommet type seals;
Said Bu Shi Buchner funnel orifice plate is arranged in the said Buchner funnel base, is arranged on below, said mud cup bottom, between Bu Shi Buchner funnel orifice plate and the said mud cup bottom said grommet type seals is set.
In the said apparatus, said metering system comprises: annular water distribution frame, exhaust tube, blow-down pipe and gauge line; Wherein,
Said annular water distribution frame is arranged in the said gauge line, and annular water distribution frame is provided with the water inlet that connects Buchner funnel;
Said exhaust tube, blow-down pipe all are connected on the said gauge line.
In the said apparatus, said gauge line internal diameter is 30~60mm.
In the said apparatus, said exhaust tube is connected on the said gauge line of said annular water distribution frame top;
The emptying valve is set on the said blow-down pipe, and blow-down pipe is connected the gauge line bottom, is the U-shaped pipe.
In the said apparatus, said Buchner funnel and metering system are through articulation or clamp connection.
In the said apparatus, said oilless vacuum pump is arranged on outside the said fixed support, and said oilless vacuum pump separates placement with said fixed support; Be provided with spring bumper below the said fixed support.
Said apparatus also comprises: the filter paper cutter, and it is a metallic cylinder, its upper end closed, the lower end is the annular edge of a knife.
Can find out by the above-mentioned technical scheme that provides, the mud resistivity measurement mechanism of the utility model embodiment because each parts of Buchner funnel are the car coat type structure of split, construct succinct, simple to operate, be convenient to change filter paper and measure accurate.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skill in the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the mud resistivity measurement mechanism that Fig. 1 provides for the utility model embodiment;
Fig. 2 places synoptic diagram for mud cup and filter paper that the utility model embodiment provides;
The filter paper set collar synoptic diagram that Fig. 3 provides for the utility model embodiment;
The Buchner funnel understructure synoptic diagram that Fig. 4 provides for the utility model embodiment;
The Buchner funnel base that Fig. 5 provides for the utility model embodiment is ear groove structural representation fixedly;
The Bu Shi Buchner funnel AND DEWATERING FOR ORIFICE STRUCTURE synoptic diagram that Fig. 6 provides for the utility model embodiment;
The metering system structural representation that Fig. 7 provides for the utility model embodiment;
The filter paper cutter synoptic diagram that Fig. 8 provides for the utility model embodiment;
The elevational schematic view of the filter paper cutter that Fig. 9 provides for the utility model embodiment;
Each label is among the figure: 1-mud cup; 2-Buchner funnel base; The 3-Buchner funnel; The 4-metering system; The 5-variable valve; The 6-vacuum meter; The 7-pressure surge tank; The 8-fixed support; The 9-connecting pipe; The 10-oilless vacuum pump; 11-filter paper set collar; 12-filter paper; 13-is ear fixedly; The 14-grommet type seals; 15-is the ear groove fixedly; The 16-bleeder vent; The 17-spring bumper; The 18-exhaust tube; 19-annular water distribution frame; The 20-gauge line; The 21-blow-down pipe; 22-emptying valve; The 23-articulation; The 24-valve; 25-Buchner funnel orifice plate; 26-filter paper cutter.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment of the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the protection domain of the utility model.
To combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
The utility model embodiment provides a kind of mud resistivity measurement mechanism; As shown in Figure 1; This device comprises: Buchner funnel 3, metering system 4, connecting pipe, pressure surge tank, oilless vacuum pump, vacuum meter and fixed support; Buchner funnel 3, metering system 4, pressure surge tank 7 and vacuum meter 6 all are arranged on the fixed support 8; Buchner funnel 3 is connected with metering system 4, pressure surge tank 7, connecting pipe 9 and oilless vacuum pump 10 successively, and vacuum meter 6 is arranged on the pressure surge tank 7, also is provided with variable valve 5 on the pressure surge tank 7; The pipeline that is connected between metering system 4 and the pressure surge tank 7 is provided with valve 24;
Above-mentioned Buchner funnel is a split-type structural, shown in Fig. 2~6, comprising: Buchner funnel base 2, mud cup 1, filter paper set collar 11 and filter paper 12;
Wherein, Buchner funnel base 2 upper ends are provided with mud cup bayonet socket, and the lower end is provided with leakage fluid dram;
The cup of mud cup 1 bottom is provided with portion's of clamping (can be to be symmetricly set on the outer fixedly ear 13 of cup) outward, is fastened on through the portion of clamping on the mud cup bayonet socket (can be the fixedly ear groove 15 that is symmetricly set on the level that the vertical fluting on Buchner funnel base 2 walls is connected with this fluting lower end) of Buchner funnel base 2;
The wall of cup bottom of mud cup 1 is provided with and clamps the hole, and filter paper set collar 11 is provided with the support corresponding with clamping the hole, and filter paper set collar 11 can clamp the wall of cup bottom that is fixed on mud cup 1 through support;
Filter paper 12 is arranged on the wall of cup bottom of mud cup 1 through filter paper set collar 11.
Filter paper set collar 11 is a loop configuration, and support vertically is arranged on its ring body.
The wall of cup bottom of above-mentioned mud cup 1 can be provided with a plurality of equally distributed holes that clamp; Also can be provided with on the filter paper set collar and a plurality of corresponding a plurality of supports in hole that clamp; Thereby guarantee the steadiness after filter paper set collar and mud cup clamp, guarantee fixed effect filter paper.
Above-mentioned Buchner funnel can also comprise: Buchner funnel orifice plate 25 and grommet type seals 14; Buchner funnel orifice plate 25 is arranged in the Buchner funnel base 1, is located at below, mud cup 1 bottom, between Buchner funnel orifice plate 25 and mud cup 1 bottom grommet type seals 14 is set, and evenly is provided with a plurality of bleeder vents 16 on the Buchner funnel orifice plate 25.
Above-mentioned Buchner funnel is a split-type structural; Buchner funnel base and top mud cup split; The mud cup can adopt lightweight duroplasts or organic glass material to process, and in the middle of both, places filter paper, and filter paper is fixed through filter paper set collar and mud cup; The mud that suction filtration is accomplished with the mud cup dry, weighing, solved the problem that filter paper stacks and leaks gas.Buchner funnel base and top mud cup split are fixed through fixing ear, and place grommet type seals between the two, prevent gas leakage.
As shown in Figure 7, the metering system 4 of above-mentioned measurement mechanism comprises: annular water distribution frame 19, exhaust tube 18, blow-down pipe 21 and gauge line 20; Wherein, annular water distribution frame 19 is arranged in the gauge line 20, can reduce filter and drip the influence to the filtrating liquid level, is convenient to make drop evenly to flow down; Annular water distribution frame 19 is provided with the water inlet that connects Buchner funnel 3; Exhaust tube 18, blow-down pipe 21 all are connected on the gauge line 20.Gauge line 20 internal diameters can be 30~60mm, process for transparent material, which is provided with scale, are convenient to strengthen the accuracy of reading filtrate volume; Exhaust tube 18 is connected on the body of gauge line 20 of annular water distribution frame 19 tops, can reduce the influence of bleeding to drop, and prevent that drop is inhaled into vacuum system; Emptying valve 24 is set on the blow-down pipe 21, and blow-down pipe 21 is connected gauge line 20 bottoms, below the gauge line scale, to make things convenient for the emptying of the filtrating in the metering system.Be to eliminate the influence of evacuated tube volume to the filtrate volume reading, and do not influence after the emptying and read filtrate volume next time, blow-down pipe can adopt the U-shaped pipe.
In the above-mentioned measurement mechanism, Buchner funnel 3 directly is connected through articulation 23 or clip with metering system 4.
In the above-mentioned measurement mechanism, oilless vacuum pump 10 is arranged on outside the fixed support 8, and oilless vacuum pump 10 separates placement with fixed support, causes support bracket fastened vibration in the time of can reducing the oil-free vacuum pump work like this.And, below the fixed support of said apparatus, be provided with spring bumper 17, also can reduce the vibration of fixed support 8, improve accuracy of measurement.
Above-mentioned measurement mechanism can also comprise: filter paper cutter 26, and it is a metallic cylinder, its upper end closed; The lower end is the annular edge of a knife; This filter paper cutter size with corresponding to the specification of Buchner funnel, can cut filter paper, make the mud cup of the Buchner funnel of its suitable all size.
The course of work of above-mentioned measurement mechanism is following:
Buchner funnel according to different size uses the filter paper cutter that filter paper is cut, and filter paper is fixed on the mud cup weighing after dry constant weight with the filter paper fixed support; The mud cup is fixed on the Buchner funnel base, and water squirts, and after evacuated tube (U-shaped pipe) that the water yield reaches metering system flows out, closes exhaust-valve; Start oilless vacuum pump; Making becomes negative pressure in the exhaust tube, check the impermeability of whole device, closes oilless vacuum pump then; Mud appearance is poured in the mud cup, start oilless vacuum pump once more, make mud filter dehydration under certain condition; Every at a distance from 10s clock record filtrate volume, when be filled into the mud face occur chapping or filtrate reach mud appearance weight 85% the time, writing time; Close oilless vacuum pump; The mud cup is unloaded down, is weighed after drying together with filter paper, mud, claim after the weight through weighing before dewatering and the dehydration the weight of mud can test out mud and compare resistance.
The measurement mechanism of the utility model embodiment can satisfy colleges and universities' " water treatment experiment technology " course mud resistivity experiment, and the measurement of mud resistivity in sewage treatment plant and the related scientific research unit; Well solved filter paper and stacked the situation of difficulty and system's gas leakage, and solved the filtrate discharge problem, conveniently repeatedly tested continuously.
Below in conjunction with accompanying drawing and specific embodiment above-mentioned measurement mechanism is described further.
Like Fig. 1~shown in Figure 8, repacking Buchner funnel 3 is made up of mud cup 1 and Buchner funnel base 2; The cup of mud cup 1 bottom is outer to have evenly distribute holes that clamp of 4 band expansion loops of two fixedly ears 13, mud cup 1 wall of cup bottom, the support of filter paper set collar 11 with clamp the hole and cooperate, filter paper 12 is folded in bottom filter paper set collar 11 and mud cup 1 wall of cup; Buchner funnel base 2 bottoms are provided with Buchner funnel orifice plate 25; Evenly arrange bleeder vent 16 in the bottom by the different size Buchner funnel; Grommet type seals 14 is arranged around Buchner funnel orifice plate 25; Two flutings are from top to bottom arranged on Buchner funnel base 2 wall of cups, and the bottom is provided with the fixedly ear groove 15 of level fluting;
Metering system 4 comprises annular water distribution frame 19, exhaust tube 18, blow-down pipe 21 and gauge line 20, and emptying valve 22 is set on blow-down pipe 21;
The frame pin mounting spring vibroshock 17 of fixed support 8 is provided with vacuum meter 6 and variable valve 5 on the pressure surge tank 7 on the fixed support desktop;
Buchner funnel 3 is connected through articulation 23 direct connections such as grade with metering system 4, and oilless vacuum pump 10 is communicated with pressure surge tank 7 through connecting pipe 9, and the exhaust tube 18 on the metering system 4 all passes through connecting pipe 9 and is communicated with pressure surge tank 7, constitutes the complete closure exhaust pipe.
The use of above-mentioned measurement mechanism is following:
(1) filter paper installation course:
Use filter paper cutter 26 cutting filter paper according to different Buchner funnel diameter, the filter paper 12 of well cutting is placed on mud cup 1 bottom, use filter paper set collar 11, filter paper 12 is fixing with mud cup 1, and filter paper 12 is laid and is finished;
(2) survey starting weight just
With filter paper 12, filter paper set collar 11 and mud cup 1 integral body under 105 ℃ of conditions, drying constant weight, as first starting weight.
(3) assembling Buchner funnel
With the fixedly ear groove 15 that the fixedly ear on the mud cup 1 13 is aimed on the Buchner funnel base 2, after the insertion rotation mud cup 1 and Buchner funnel base 2 are formed repacking Buchner funnels 3.
(4) mud resistivity measuring process:
At first squirt filter paper 12 with clear water, open oilless vacuum pump 10, the impermeability of testing fixture after clear water flows out through blow-down pipe 21, is closed emptying valve 22; Valve-off 24, variable valve 5 makes the system vacuum degree reach test request; Pour fixed volume mud appearance to be measured into mud cup 1, open valve 24, make mud filter dehydration under certain condition; Write down the filtrate volume of different filtration times (at interval) t like 5s, 10s, 15s, when be filled into mud cake occur chapping or filtrate reach the mud original volume 85% the time, stop to filter; Take off the mud cup; To comprise that filter paper, mud cake and filter paper set collar integral body dries constant weight under 105 ℃ of conditions, measure filter cake concentration, and calculate mud and compare resistance.
The above; Be merely the preferable embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claims.

Claims (10)

1. mud resistivity measurement mechanism; Comprise: Buchner funnel, metering system, connecting pipe, pressure surge tank, oilless vacuum pump, vacuum meter and fixed support; Buchner funnel, metering system, pressure surge tank and vacuum meter all are arranged on the fixed support, and Buchner funnel is connected with metering system, pressure surge tank, connecting pipe and oilless vacuum pump successively, and vacuum meter is arranged on the pressure surge tank; It is characterized in that said Buchner funnel comprises:
Buchner funnel base, mud cup, filter paper set collar and filter paper; Wherein,
Said Buchner funnel base upper end is provided with mud cup bayonet socket, and the lower end is provided with leakage fluid dram;
The cup of said mud cup bottom is provided with the portion of clamping outward, is fastened on through the portion of clamping on the mud cup bayonet socket of said Buchner funnel base;
The wall of cup bottom of said mud cup is provided with and clamps the hole, and said filter paper set collar is provided with and the said corresponding support in hole that clamps, and said filter paper set collar can clamp the wall of cup bottom that is fixed on said mud cup through said support;
Said filter paper is arranged on the wall of cup bottom of said mud cup through said filter paper set collar.
2. mud resistivity measurement mechanism according to claim 1 is characterized in that said filter paper set collar is a loop configuration, and support vertically is arranged on its ring body.
3. mud resistivity measurement mechanism according to claim 1 and 2 is characterized in that, the wall of cup bottom of said mud cup is provided with a plurality of equally distributed holes that clamp, and said filter paper set collar is provided with and said a plurality of corresponding a plurality of supports in hole that clamp.
4. mud resistivity measurement mechanism according to claim 1 is characterized in that said Buchner funnel also comprises:
Bu Shi Buchner funnel orifice plate and grommet type seals;
Said Bu Shi Buchner funnel orifice plate is arranged in the said Buchner funnel base, is arranged on below, said mud cup bottom, between Bu Shi Buchner funnel orifice plate and the said mud cup bottom said grommet type seals is set.
5. mud resistivity measurement mechanism according to claim 1 is characterized in that said metering system comprises: annular water distribution frame, exhaust tube, blow-down pipe and gauge line; Wherein,
Said annular water distribution frame is arranged in the said gauge line, and annular water distribution frame is provided with the water inlet that connects Buchner funnel;
Said exhaust tube, blow-down pipe all are connected on the said gauge line.
6. mud resistivity measurement mechanism according to claim 5 is characterized in that said gauge line internal diameter is 30~60mm.
7. mud resistivity measurement mechanism according to claim 5 is characterized in that, said exhaust tube is connected on the said gauge line of said annular water distribution frame top;
The emptying valve is set on the said blow-down pipe, and blow-down pipe is connected the gauge line bottom, is the U-shaped pipe.
8. mud resistivity measurement mechanism according to claim 1 is characterized in that said Buchner funnel and metering system are through articulation or clamp connection.
9. mud resistivity measurement mechanism according to claim 1 is characterized in that said device also comprises: the filter paper cutter, and it is a metallic cylinder, its upper end closed, the lower end is the annular edge of a knife.
10. mud resistivity measurement mechanism according to claim 1 is characterized in that said oilless vacuum pump is arranged on outside the said fixed support, and said oilless vacuum pump separates placement with said fixed support; Be provided with spring bumper below the said fixed support.
CN2012200134924U 2012-01-12 2012-01-12 Sludge specific resistance measuring device Expired - Fee Related CN202471543U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200134924U CN202471543U (en) 2012-01-12 2012-01-12 Sludge specific resistance measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200134924U CN202471543U (en) 2012-01-12 2012-01-12 Sludge specific resistance measuring device

Publications (1)

Publication Number Publication Date
CN202471543U true CN202471543U (en) 2012-10-03

Family

ID=46919695

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200134924U Expired - Fee Related CN202471543U (en) 2012-01-12 2012-01-12 Sludge specific resistance measuring device

Country Status (1)

Country Link
CN (1) CN202471543U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980834A (en) * 2012-12-10 2013-03-20 中国科学院武汉岩土力学研究所 Testing device for measuring sludge dewatering characteristics
CN105753289A (en) * 2016-04-07 2016-07-13 中国石油化工股份有限公司 Oil field sludge multi-component extraction device and method for recycling water in dryer thereof
CN108776155A (en) * 2018-07-13 2018-11-09 天津科技大学 A kind of conductance type sludge specific resistance measuring device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980834A (en) * 2012-12-10 2013-03-20 中国科学院武汉岩土力学研究所 Testing device for measuring sludge dewatering characteristics
CN102980834B (en) * 2012-12-10 2014-12-31 中国科学院武汉岩土力学研究所 Testing device for measuring sludge dewatering characteristics
CN105753289A (en) * 2016-04-07 2016-07-13 中国石油化工股份有限公司 Oil field sludge multi-component extraction device and method for recycling water in dryer thereof
CN105753289B (en) * 2016-04-07 2018-05-29 中国石油化工股份有限公司 Moisture recovery method in a kind of oil field sludge multicomponent extraction device and its drier
CN108776155A (en) * 2018-07-13 2018-11-09 天津科技大学 A kind of conductance type sludge specific resistance measuring device

Similar Documents

Publication Publication Date Title
CN201828559U (en) Multi-connected sludge specific resistance measurement device
CN202471543U (en) Sludge specific resistance measuring device
CN101887004B (en) Device and method for testing water permeability of planar filter medium
CN206161487U (en) Survey device of concrete osmotic coefficient
CN103149141A (en) Device and method for testing permeability performance of filtering media in unstable state
CN201247191Y (en) Instrument for measuring permeability coefficient of pervious brick
CN202066854U (en) Sludge dehydration speed quick measuring device
CN102455344B (en) Method for multi-connected sludge specific resistance measurement device
CN203249840U (en) Sludge specific resistance measuring device
CN203720049U (en) Drainability testing apparatus for paper pulp
CN210090237U (en) Portable tester for gas content of coal bed gas and shale gas
CN203678063U (en) Laboratory suction filtration device
CN101963552B (en) Unpowered rain sample quantitative fraction collector
CN201203605Y (en) Apparatus for measuring sludge specific resistance
CN205826477U (en) A kind of novel core permeability tester
CN206710263U (en) A kind of infiltrative test instrument for studying soil
CN213643312U (en) Simple liquid flow divider
CN209606280U (en) A kind of hole of Markov bottle moisturizing and water experimental provision
CN205280310U (en) Rubber tube leakage pressure measurement
CN201096691Y (en) Continuous absorption efficiency testing device
CN203772690U (en) Experiment instrument for testing upward seepage of soil body
CN108051350A (en) A kind of porous material testing permeability device and test method
CN102608292A (en) Sludge specific resistance measuring apparatus
CN207798761U (en) A kind of flocculant performance test reaction tube
CN206804651U (en) A kind of honeycomb fashion hopper for sludge specific resistance measure

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121003

Termination date: 20140112