CN111156357A - Filter material wave tube for saline-alkali soil - Google Patents

Filter material wave tube for saline-alkali soil Download PDF

Info

Publication number
CN111156357A
CN111156357A CN201911387032.0A CN201911387032A CN111156357A CN 111156357 A CN111156357 A CN 111156357A CN 201911387032 A CN201911387032 A CN 201911387032A CN 111156357 A CN111156357 A CN 111156357A
Authority
CN
China
Prior art keywords
pipe
tube
special
filter material
saline
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.)
Withdrawn
Application number
CN201911387032.0A
Other languages
Chinese (zh)
Inventor
王胜
李炳文
江杰
高悦文
袁永
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.)
Shandong Sunway Saline Alkali Soil Technology Co Ltd
Original Assignee
Shandong Sunway Saline Alkali Soil Technology 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 Shandong Sunway Saline Alkali Soil Technology Co Ltd filed Critical Shandong Sunway Saline Alkali Soil Technology Co Ltd
Priority to CN201911387032.0A priority Critical patent/CN111156357A/en
Publication of CN111156357A publication Critical patent/CN111156357A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/14Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/15Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Revetment (AREA)

Abstract

The invention discloses a filtering material wave tube for saline-alkali soil, which comprises a sleeved outer tube, a middle special-shaped tube and an inner tube, wherein a plurality of convex parts and concave parts which are arranged in a crossed manner are uniformly arranged on the circumference of the tube wall of the special-shaped tube along the axial direction, the inner side of the tube wall of the outer tube is tangent to and fixedly connected with the outer side of the convex parts of the special-shaped tube, the inner side of the concave part of the special-shaped tube is tangent to and fixedly connected with the outer side of the tube wall of the inner tube, a first filtering material is filled in a space between the outer tube and the special-shaped tube, a second filtering material is filled in a space between the inner tube and the special-shaped tube, a plurality of water inlet holes are formed in the tube wall of the outer. According to the invention, the space between the outer pipe and the inner pipe is divided into two filtering areas by sleeving the outer pipe, the middle section pipe and the inner pipe, so that impurities such as soil are effectively prevented from being brought into the inner pipe by water seepage of saline-alkali soil, and the water inlet hole of the inner pipe and the inner pipe are blocked.

Description

Filter material wave tube for saline-alkali soil
Technical Field
The invention relates to the field of saline-alkali soil improvement equipment, in particular to a filtering material wave tube for saline-alkali soil.
Background
The hidden pipe drainage is the main measure of saline and alkaline land drainage, and the present saline and alkaline land hidden pipe drainage generally adopts the individual layer to have the bellows of inlet opening to in the bellows laying process, laid gravel layer, non-woven fabrics layer or other filter layers around the bellows and filtered infiltration saline and alkaline water, prevent in the long-time use, impurity such as earth, salt in the infiltration water is easy to the inlet opening jam of bellows, has reduced the availability factor and the service life of hidden pipe. Moreover, the concealed conduit salt removing mode is troublesome in the construction process, the filtering layer is not easy to replace and remove in the improvement process and after the improvement of the saline-alkali soil, the materials such as the filtering layer and the like are not easy to recycle, the later effect of the concealed conduit alkali removal is seriously influenced, and the alkali removal cost is invisibly increased.
Disclosure of Invention
In order to solve the technical problem, the invention discloses a novel saline-alkali soil filter material wave tube.
The technical scheme of the invention is as follows: a filter material wave tube for saline-alkali soil comprises a sleeved outer tube, a middle special-shaped tube and an inner tube, wherein a plurality of convex parts and concave parts which are arranged in a crossed mode are uniformly arranged on the circumference of the tube wall of the special-shaped tube along the axial direction, the inner side of the tube wall of the outer tube is tangent to and fixedly connected with the outer side of the convex parts of the special-shaped tube, the inner side of the concave part of the special-shaped tube is tangent to and fixedly connected with the outer side of the tube wall of the inner tube, a first filter material is filled in a space between the outer tube and the special-shaped tube, a second filter material is filled in a space between the inner tube and the special-shaped tube, the concave parts of the special-shaped tube correspond to the tube wall of the outer tube in the radial direction, a plurality of water filtering holes.
Furthermore, one end of the outer pipe, the middle section pipe and the inner pipe which are sleeved for the first time are fixedly connected with the front side face of the first hollow base, the other end of the outer pipe, the middle section pipe and the inner pipe which are sleeved for the first time are fixedly connected with the rear side face of the second hollow base, one end of the outer pipe, the middle section pipe and the inner pipe which are sleeved for the second time are fixedly connected with the front side face of the second hollow base, the rear ends of the outer pipe, the middle section pipe and the inner pipe are sequentially arranged backwards, and the central aperture of the hollow base is the same as the.
Furthermore, a plurality of first feeding holes corresponding to the concave parts of the special pipes are formed in the pipe wall of one end of the outer pipe, a second feeding hole penetrates through the pipe wall of one end of the outer pipe and the pipe wall of the convex parts of the special pipes corresponding to the inner parts of the outer pipe, and feeding plugs are arranged on the first feeding holes and the second feeding holes.
Furthermore, the two ends of the special pipe at the two ends of the sleeved outer pipe, the sleeved middle special pipe and the sleeved inner pipe are exposed out of the outer pipe and the inner pipe, the ends of the inner pipe at the two ends of the sleeved outer pipe, the sleeved middle special pipe and the sleeved inner pipe are aligned with the end of the outer pipe, and slots matched with the two ends of the special pipe are formed in the front side surface and the rear side surface of the hollow base.
Furthermore, the outer pipe, the middle section pipe and the inner pipe are corrugated.
Furthermore, the first filter material is quartz sand, and the second filter material is volcanic rock particles.
Furthermore, the outer pipe, the middle section pipe and the inner pipe are made of PVC materials.
The invention improves the filter material corrugated pipe for salt elimination of the saline-alkali soil concealed pipe, the structure of the filter material corrugated pipe is divided into an outer pipe, a middle special pipe and an inner pipe, the shape of the middle special pipe is matched with the outer pipe and the inner pipe, the space between the outer pipe and the inner pipe is divided into two independent filtering areas, and the infiltration water flowing into the corrugated pipe from saline-alkali soil sequentially passes through the two filtering areas and then flows into the inner pipe of the corrugated pipe to flow out. The structure ensures that the water outlet holes of the inner pipe are not easy to block, the filter materials in the two filter areas are easy to replace and remove, the construction process is simple, and the filter materials are easy to recycle. The invention has potential market value.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic cross-sectional view of a filter material wave tube for saline-alkali soil according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a filtering material wave tube for saline-alkali soil in accordance with embodiment 1 of the present invention;
FIG. 3 is a schematic cross-sectional view of a filter material wave tube for saline-alkali soil according to embodiment 2 of the present invention;
fig. 4 is a schematic view of a filter material wave tube for saline-alkali soil in embodiment 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; either directly or through an intervening medium, or through internal communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Example 1
As shown in figure 1, the filtering material wave tube for saline-alkali soil comprises an outer tube 1, a middle section special-shaped tube 2 and an inner tube 3 which are sleeved, a plurality of cross-arranged convex parts 21 and concave parts 22 are uniformly arranged on the circumference of the pipe wall of the special pipe 2 along the axial direction, the inner side of the pipe wall of the outer pipe 1 is tangent to and fixedly connected with the outer side of the special pipe convex part 21, the inner side of the special pipe concave part 22 is tangent to and fixedly connected with the outer side of the pipe wall of the inner pipe 3, a first filter material 41 is filled in a space between the outer pipe 1 and the special pipe 2, a second filter material 42 is filled in a space between the inner pipe 3 and the special pipe 2, the pipe wall of the outer pipe 1 corresponding to the special pipe concave part 22 in the radial direction is provided with a plurality of water inlet holes 51, a plurality of water filtering holes 52 are arranged on the pipe wall of the special pipe 2 between the concave part 22 and the convex part 21 of the special pipe, the pipe wall of the inner pipe 3 corresponding to the special pipe convex part 21 in the radial direction is provided with a plurality of water outlet holes 53.
Further, as shown in fig. 2, one end of the first sleeved outer tube 1, the first sleeved middle section tube 2, and the first sleeved inner tube 3 is fixedly connected to a front side 611 of the first hollow base 61, the other end of the first sleeved outer tube 1, the first sleeved middle section tube 2, and the first sleeved inner tube 3 is fixedly connected to a rear side 622 of the second hollow base 62, one end of the second sleeved outer tube 1, the first sleeved middle section tube 2, and the second sleeved inner tube 3 is fixedly connected to a front side 621 of the second hollow base 62, and sequentially backward, central holes 613 and 623 of the hollow bases 61 and 62 have the same diameter as that of the inner tube 3 and have the same center.
Furthermore, a plurality of first feeding holes 71 corresponding to the concave parts 22 of the special pipes are formed in the pipe wall of one end of the outer pipe 1, a second feeding hole 72 penetrates through the pipe wall of the convex part 21 of the special pipe corresponding to the pipe wall of one end of the outer pipe 1 and the pipe wall of the convex part 21 of the special pipe corresponding to the inner part of the outer pipe, and a feeding plug 73 is arranged on each of the first feeding holes 71 and the second feeding holes 72. The outer pipe 1, the middle section pipe 2 and the inner pipe 3 are corrugated pipes. The first filter material 41 is quartz sand, and the second filter material 42 is volcanic rock particles. The outer pipe 1, the middle section pipe 2 and the inner pipe 3 are made of PVC materials.
Example 2
As shown in fig. 3, a filtering material wave tube for saline-alkali soil comprises an outer tube 1 ', a middle section tube 2 ' and an inner tube 3 ' which are sleeved, wherein a plurality of convex portions 21 ' and concave portions 22 ' which are arranged in a crossed manner are uniformly arranged on the circumference of the tube wall of the section tube 2 ' along the axial direction, the inner side of the tube wall of the outer tube 1 ' is tangent to and fixedly connected with the outer side of the convex portions 21 ' of the section tube, the inner side of the concave portions 22 ' of the section tube is tangent to and fixedly connected with the outer side of the tube wall of the inner tube 3 ', a space between the outer tube 1 ' and the section tube 2 ' is filled with a filtering material 41 ', a space between the inner tube 3 ' and the section tube 2 ' is filled with a filtering material 42 ', the concave portions 22 ' of the section tube are provided with a plurality of water inlet holes 51 ' on the tube wall of the outer tube 1 ' corresponding to the radial direction, the pipe wall of the inner pipe 3 ' corresponding to the special pipe convex part 21 ' in the radial direction is provided with a plurality of water outlet holes 53 '.
As shown in fig. 4, further, one end of the first sleeved outer tube 1 ', the middle section tube 2' and the inner tube 3 'is fixedly connected to the front side 611' of the first hollow base 61 ', the other end of the first sleeved outer tube 1', the middle section tube 2 'and the inner tube 3' is fixedly connected to the rear side 622 'of the second hollow base 62', one end of the second sleeved outer tube 1 ', the middle section tube 2' and the inner tube 3 'is fixedly connected to the front side 621' of the second hollow base 62 ', and sequentially backward, the central holes 613', 623 'of the hollow bases 61', 62 'have the same diameter as the inner tube 3' and the centers thereof coincide with each other.
Further, the two end portions 23 'of the profiled tube 2' at the two ends of the sleeved outer tube 1 ', the sleeved middle profiled tube 2' and the sleeved inner tube 3 'are exposed outside the outer tube 1' and the inner tube 3 ', the end portions of the inner tube 3' at the two ends of the sleeved outer tube 1 ', the sleeved middle profiled tube 2' and the sleeved inner tube 3 'are aligned with the end portion of the outer tube 1', and the front side surfaces 611 ', 621' and the rear side surfaces 612 ', 622' of the hollow bases 61 ', 62' are respectively provided with an insertion slot 7 'matched with the two end portions 23' of the profiled tube. The fixed connection is completed by the insertion of the two end parts 23 ' and the slot 7 ' of the special pipe, and the outer pipe 1 ', the middle special pipe 2 ' and the inner pipe 3 ' are corrugated pipes. The first filter material 41 'is quartz sand, and the second filter material 42' is volcanic rock particles. The outer pipe 1 ', the middle section pipe 2 ' and the inner pipe 3 ' are made of PVC materials.
In the use of the embodiment 1 of the invention, as shown in fig. 1 and 2, the feeding plug 73 is opened, the first filter material 41 is filled through the first feeding hole 71, the second filter material 42 is filled through the second feeding hole 72, the feeding plug 73 is closed, the filter material pipe is buried in the pipe ditch with the slope, the downward seepage water firstly enters between the outer pipe 1 and the special-shaped pipe concave part 22 through the plurality of water inlet holes 51 on the outer pipe 1, is filtered by the first filter material 41, then enters between the special-shaped pipe convex part 21 and the inner pipe 3 through the plurality of water filtering holes 52 on the pipe wall of the special-shaped pipe 2 between the special-shaped pipe concave part 22 and the convex part 21, is filtered by the second filter material 42, enters the inner pipe 3 through the plurality of water outlet holes 53 on the pipe wall of the inner pipe 3, and flows out of the saline-alkali land block due.
In the use of embodiment 2 of the present invention, as shown in fig. 3 and 4, in order to facilitate the loading and unloading of the first filtering material 41 'and the second filtering material 42', one end of the two ends 23 'of the first sleeved external tube 1', the middle profiled tube 2 'and the internal tube 3' of the middle profiled tube is inserted into the slot 7 'on the front side 611' of the first hollow base 61 'in a manner that the two ends 23' of the profiled tube are inserted into the two-sided slots 7 'of the hollow bases 61' and 62 ', the end of the corresponding external tube 1' and the end of the corresponding internal tube 3 'are clamped on the front side 611' of the first hollow base 61 ', the first filtering material 41' is filled between the external tube 1 'and the middle profiled tube 2' at the other end of the sleeve through the opening, the second filtering material 42 'is filled between the middle profiled tube 2' and the internal tube 3 ', and then the slot 7' on the rear side 622 'of the second hollow base 62' is inserted into the two, and finishing the sealing of the first sleeved outer pipe 1 ', the middle section pipe 2 ' and the inner pipe 3 ', the first filtering material 41 ' and the second filtering material 42 '. And the connection and the sealing of a plurality of sleeved outer pipes 1 ', middle section pipes 2 ' and inner pipes 3 ' can be completed sequentially downwards. When the filter material is replaced, the two end parts 23 'of the special pipe and the inserting grooves 7' of the hollow bases 61 'and 62' can be pulled out and inserted, and the disassembly is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization of those skilled in the art; where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention.

Claims (7)

1. The utility model provides a saline and alkaline land is with filter material wave pipe, is including outer tube, middle part mechanical tubes and the inner tube that cup joints, its characterized in that: the special pipe comprises an outer pipe and a special pipe, wherein the outer pipe is provided with a plurality of convex parts and concave parts, the convex parts and the concave parts are arranged on the circumference of the pipe wall of the special pipe in a crossed mode, the inner side of the pipe wall of the outer pipe is tangent to the outer side of the convex parts of the special pipe and is fixedly connected with the outer side of the convex parts of the special pipe, the inner side of the concave parts of the special pipe is tangent to the outer side of the pipe wall of the inner pipe and is fixedly connected with the outer side of the concave parts of the special pipe, a first filter material is filled in a space between the outer pipe and the special pipe, a second filter material is filled in a space between the inner pipe and the special pipe, the concave parts of the special.
2. The filter material wave tube for the saline-alkali soil according to claim 1, characterized in that: the first outer tube, the middle section tube and the inner tube which are sleeved are fixedly connected with the front side face of the first hollow base, the other ends of the first outer tube, the middle section tube and the inner tube which are sleeved are fixedly connected with the rear side face of the second hollow base, the second outer tube, the middle section tube and the inner tube which are sleeved are fixedly connected with the front side face of the second hollow base, the rear ends of the first outer tube, the second middle section tube and the inner tube are sequentially connected backwards, and the central aperture of the hollow base is the same as the diameter of the inner tube and the center of the hollow.
3. The filter material wave tube for the saline-alkali soil according to claim 2, characterized in that: the pipe wall of one end of the outer pipe is provided with a plurality of first feeding holes corresponding to the concave parts of the special pipes, the pipe wall of one end of the outer pipe and the pipe wall of the convex parts of the special pipes corresponding to the inner parts of the outer pipe are respectively provided with a second feeding hole in a penetrating mode, and feeding plugs are arranged on the first feeding holes and the second feeding holes.
4. The filter material wave tube for the saline-alkali soil according to claim 2, characterized in that: the two ends of the special pipe at the two ends of the outer pipe, the middle special pipe and the inner pipe are exposed out of the outer pipe and the inner pipe, the ends of the inner pipe at the two ends of the outer pipe, the middle special pipe and the inner pipe are aligned with the ends of the outer pipe, and slots matched with the two ends of the special pipe are formed in the front side surface and the rear side surface of the hollow base.
5. The filter material wave tube for the saline-alkali soil according to claim 1, characterized in that: the outer pipe, the middle section pipe and the inner pipe are corrugated pipes.
6. The filter material wave tube for the saline-alkali soil according to claim 1, characterized in that: the first filter material is quartz sand, and the second filter material is volcanic rock particles.
7. The filter material wave tube for the saline-alkali soil according to claim 1, characterized in that: the outer pipe, the middle section pipe and the inner pipe are made of PVC materials.
CN201911387032.0A 2019-12-29 2019-12-29 Filter material wave tube for saline-alkali soil Withdrawn CN111156357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911387032.0A CN111156357A (en) 2019-12-29 2019-12-29 Filter material wave tube for saline-alkali soil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911387032.0A CN111156357A (en) 2019-12-29 2019-12-29 Filter material wave tube for saline-alkali soil

Publications (1)

Publication Number Publication Date
CN111156357A true CN111156357A (en) 2020-05-15

Family

ID=70558981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911387032.0A Withdrawn CN111156357A (en) 2019-12-29 2019-12-29 Filter material wave tube for saline-alkali soil

Country Status (1)

Country Link
CN (1) CN111156357A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182580A (en) * 1977-03-18 1980-01-08 Mitsui Petrochemical Industries, Ltd. Underdrainage pipe
DE102004020888A1 (en) * 2004-04-28 2005-11-17 Tracto-Technik Gmbh Pipe system with at least one permeable support pipe laid in the earth by a trench-free technique and filters, useful for cleaning, filtering, and hygiene applications and for rain water seepage control
CN202524735U (en) * 2012-04-19 2012-11-14 福建省景观园林建筑发展有限公司 Composite concealed conduit for salt elimination and alkalinity reduction in saline-alkali land
CN203743663U (en) * 2014-02-25 2014-07-30 杭州中艺园林工程有限公司 Easily-assembled salt elimination pipe assembly for saline-alkali soil
CN205623597U (en) * 2016-05-25 2016-10-12 登封市住房和城乡建设局 Afforestation is with driping irrigation pipe
CN205847907U (en) * 2016-07-12 2017-01-04 山东胜伟园林科技有限公司 A kind of multistage filtering salt-soda soil hidden pipe
CN108093721A (en) * 2017-12-29 2018-06-01 内蒙古蒙草生态环境(集团)股份有限公司 A kind of closed drainage filtrate arranging system and hidden pipe salt reduction take off stain method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182580A (en) * 1977-03-18 1980-01-08 Mitsui Petrochemical Industries, Ltd. Underdrainage pipe
DE102004020888A1 (en) * 2004-04-28 2005-11-17 Tracto-Technik Gmbh Pipe system with at least one permeable support pipe laid in the earth by a trench-free technique and filters, useful for cleaning, filtering, and hygiene applications and for rain water seepage control
CN202524735U (en) * 2012-04-19 2012-11-14 福建省景观园林建筑发展有限公司 Composite concealed conduit for salt elimination and alkalinity reduction in saline-alkali land
CN203743663U (en) * 2014-02-25 2014-07-30 杭州中艺园林工程有限公司 Easily-assembled salt elimination pipe assembly for saline-alkali soil
CN205623597U (en) * 2016-05-25 2016-10-12 登封市住房和城乡建设局 Afforestation is with driping irrigation pipe
CN205847907U (en) * 2016-07-12 2017-01-04 山东胜伟园林科技有限公司 A kind of multistage filtering salt-soda soil hidden pipe
CN108093721A (en) * 2017-12-29 2018-06-01 内蒙古蒙草生态环境(集团)股份有限公司 A kind of closed drainage filtrate arranging system and hidden pipe salt reduction take off stain method

Similar Documents

Publication Publication Date Title
US3727953A (en) Tube coupling
KR100540816B1 (en) Resin Wave Tube
CN113588903A (en) Underground water beam type monitoring well and well completion method
CN111156357A (en) Filter material wave tube for saline-alkali soil
AU4338789A (en) An underground pipe for a thrust boring method and a connecting construction of the underground pipe for the same
CN204401624U (en) Grouting Pipe
CN216839551U (en) Neural network formula road bed barricade drainage filter equipment
CA2847436A1 (en) Aggregate replacement
CN211773806U (en) Precipitation pipe
CN106320300A (en) Water collecting pipe applicable to quick drainage in yellow river irrigated areas
CN108043084B (en) DKPE double-walled corrugated water filter pipe for well
JP6442750B2 (en) Drainage drainage pipe and its construction method
CN214066630U (en) A groundwater monitoring devices for preventing groundwater cluster layer
KR101166326B1 (en) Tunnel-type intake system for filtered water
JP2001098882A (en) Draining method
CN217323539U (en) MBR membrane module convenient to equipment
JPH0666395A (en) Universal tube joint
CN212662850U (en) Back-washing solid-liquid separation device
CN205804320U (en) Can the multiplex blind pipe of drainage permeable
JP4108707B2 (en) Water intake equipment
SE513267C2 (en) Heat exchanger for placement in boreholes and ways of applying heat exchanger
KR20030031083A (en) Holed drainpipe for revetment, slope and underground water level
CN218911482U (en) Foundation pit dewatering well
CN220394490U (en) Casing structure for preventing piping damage around buried pipe
CN216692621U (en) Core-shifting secondary drainage joint

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20200515

WW01 Invention patent application withdrawn after publication