CN110924511A - Hydrophobic device is used in hydraulic engineering construction - Google Patents

Hydrophobic device is used in hydraulic engineering construction Download PDF

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Publication number
CN110924511A
CN110924511A CN201911134879.8A CN201911134879A CN110924511A CN 110924511 A CN110924511 A CN 110924511A CN 201911134879 A CN201911134879 A CN 201911134879A CN 110924511 A CN110924511 A CN 110924511A
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CN
China
Prior art keywords
wastewater
water
sets
waste water
collecting box
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Pending
Application number
CN201911134879.8A
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Chinese (zh)
Inventor
董浩
孙玲
蒋迎春
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Yancheng Dongfang Automobile Square Investment Development Co Ltd
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Yancheng Dongfang Automobile Square Investment Development Co Ltd
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Application filed by Yancheng Dongfang Automobile Square Investment Development Co Ltd filed Critical Yancheng Dongfang Automobile Square Investment Development Co Ltd
Priority to CN201911134879.8A priority Critical patent/CN110924511A/en
Publication of CN110924511A publication Critical patent/CN110924511A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • E03F5/101Dedicated additional structures, interposed or parallel to the sewer system
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/22Adaptations of pumping plants for lifting sewage

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sewage (AREA)

Abstract

The invention relates to the technical field of hydraulic engineering, in particular to a drainage device for hydraulic engineering construction, which can greatly reduce the construction work amount, lighten the labor intensity, improve the working efficiency, avoid excavating and filling drainage channels, reduce the construction cost and reduce the use limitation; including waste water collecting box, the collecting box sealing door, the water pump fixed plate, automatic suction pump, the inlet tube, the drain pipe, drainage valve and four group's support footing, waste water collecting box's inside is provided with the waste water storage chamber, waste water collecting box's top is provided with gets puts the mouth, waste water collecting box's left end is provided with the waste water entry, automatic suction pump's bottom is provided with the connection base, drain pipe fixed mounting and the input of drain pipe and waste water collecting box's delivery port intercommunication, drainage valve rotates fixed mounting on the circumference outer wall of drain pipe, four group's support footing fixed mounting respectively is on four angles of waste water collecting box bottom, and waste water collecting box's inner.

Description

Hydrophobic device is used in hydraulic engineering construction
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a drainage device for hydraulic engineering construction.
Background
The water conservancy project is a general term of various project constructions constructed for controlling, utilizing and protecting surface and underground water resources and environments, and in recent years, China vigorously develops and constructs water conservancy projects, so that the water resources and the natural environment on which people live are protected, and negative harm brought to the environment by economic development is solved.
In hydraulic engineering work progress, some hydrophobic devices need to be built usually, the hydrophobic device who adopts in the work progress all is the drainage canal usually, dig through the side at hydraulic engineering and establish the drainage canal, in hydraulic construction process, extract the waste water that produces to the drainage canal in the realization to hydraulic engineering through the water pump, guarantee going on in order of engineering, nevertheless dig and establish the great engineering volume of drainage canal needs, the construction is wasted time and energy, work efficiency is low, and can produce more dregs of soil, after later stage hydraulic construction is accomplished, still need landfill again, construction cost has consequently been increased, lead to using the limitation higher.
Disclosure of Invention
In order to solve the technical problems, the invention provides the drainage device for the hydraulic engineering construction, which can greatly reduce the construction work amount, reduce the labor intensity, improve the working efficiency, avoid excavating and filling drainage channels, reduce the construction cost and reduce the use limitation.
The invention relates to a drainage device for hydraulic engineering construction, which comprises a wastewater collection box, a collection box sealing door, a water pump fixing plate, an automatic water suction pump, a water inlet pipe, a water drain valve and four groups of supporting feet, wherein a wastewater storage cavity is arranged inside the wastewater collection box, the top end of the wastewater collection box is provided with a taking and placing opening, the left end of the wastewater collection box is provided with a wastewater inlet, the right end of the wastewater collection box is provided with a water outlet, the taking and placing opening, the wastewater inlet and the water outlet are communicated with the wastewater storage cavity of the wastewater collection box, the rear end of the collection box sealing door is provided with two groups of rotating hinges, the collection box sealing door is rotatably covered on the taking and placing opening of the wastewater collection box through the two groups of rotating hinges, the water pump fixing plate is fixedly arranged at the left end of the wastewater, inlet tube fixed mounting is in wastewater collection box's left end, and the input of inlet tube and the output intercommunication of automatic suction pump, the output of inlet tube and wastewater collection box's waste water entry intercommunication, drain pipe fixed mounting is at wastewater collection box's right-hand member, and the input of drain pipe and wastewater collection box's delivery port intercommunication, drain valve rotates fixed mounting on the circumference outer wall of drain pipe, four group's support footing fixed mounting respectively are on four angles of wastewater collection box bottom, and wastewater collection box's inner wall and surface all rust-resistant processing that loses.
The invention relates to a drainage device for hydraulic engineering construction, which further comprises two groups of sliding grooves, two groups of sliding blocks, two groups of rotating connecting frames and two groups of pneumatic springs, wherein the sliding grooves are formed in the left end and the right end in a wastewater storage cavity of a wastewater collection box, the two groups of sliding blocks are respectively installed in the two groups of sliding grooves in a sliding mode, the two groups of rotating connecting frames are respectively and fixedly installed at the bottom end of a sealing door of the collection box, the two groups of pneumatic springs are respectively and rotatably installed on the two groups of rotating connecting frames, pneumatic shafts are respectively arranged in the two groups of pneumatic springs in a sliding mode, and the two groups of.
The drainage device for hydraulic engineering construction further comprises a sludge grid, a drain outlet and a drain door, wherein the sludge grid is fixedly arranged in a wastewater storage cavity of the wastewater collection box, the front end and the rear end of the sludge grid are respectively connected with the front inner wall and the rear inner wall of the wastewater collection box, the drain outlet is formed in the rear end of the wastewater collection box, and the drain door is slidably and hermetically arranged on the drain outlet.
The drainage device for the hydraulic engineering construction further comprises a water flow buffering cover, the water flow buffering cover is fixedly installed on a wastewater inlet of the wastewater collecting box, a buffering hole is formed in the water flow buffering cover, the water flow buffering cover is located in a wastewater storage cavity of the wastewater collecting box, and a buffering hole is formed in the water flow buffering cover.
The invention discloses a drainage device for hydraulic engineering construction, which further comprises a precision filter screen, wherein the precision filter screen is fixedly arranged on a water outlet of a wastewater collection box, and is positioned in a wastewater storage cavity of the wastewater collection box.
The drainage device for the hydraulic engineering construction further comprises a liquid level meter, wherein the liquid level meter is fixedly installed at the front end of the waste water collecting box, a scale value is arranged on the front end face of the liquid level meter, and the input end of the liquid level meter is communicated with the waste water storage cavity of the waste water collecting box.
The drainage device for the hydraulic engineering construction further comprises two groups of door handles, wherein the two groups of door handles are respectively and fixedly arranged at the top end of the collecting box sealing door in a bilateral symmetry mode.
The drainage device for the hydraulic engineering construction further comprises two groups of reinforcing plates, wherein the two groups of reinforcing plates are respectively and fixedly and symmetrically arranged at the bottom end of the water pump fixing plate, and the right ends of the two groups of reinforcing plates are connected with the left end of the wastewater collection box.
Compared with the prior art, the invention has the beneficial effects that: at first start automatic suction pump, waste water with producing is under the effect of automatic suction pump, collect in the waste water storage chamber of waste water collecting tank is taken into through the inlet tube, treat that waste water collecting tank's waste water storage chamber fills up the back, open the drainage valve again, waste water is through the drain pipe discharge, waste water collecting tank's overall structure is simple, high durability and convenient installation, the transport of being convenient for, but the engineering volume of greatly reduced construction, reduce intensity of labour, improve work efficiency, avoided digging and establish the drainage canal, reduce the formation of soil sediment, need not the landfill, thereby the construction cost that significantly reduces, reduce and use the limitation.
Drawings
FIG. 1 is a front side schematic view of the present invention;
FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;
FIG. 3 is a left side schematic view of the present invention;
FIG. 4 is a partial schematic view of the sealed door of the collection chamber of the present invention when open;
in the drawings, the reference numbers: 1. a wastewater collection tank; 2. a collection box sealing door; 3. rotating the hinge; 4. a water pump fixing plate; 5. an automatic water pump; 6. connecting a base; 7. a water inlet pipe; 8. a drain pipe; 9. a drain valve; 10. supporting feet; 11. a sliding groove; 12. a slider; 13. the connecting frame is rotated; 14. a pneumatic spring; 15. a pneumatic shaft; 16. a sludge grid; 17. a sewage draining outlet; 18. a sewage draining door; 19. a water flow buffer cover; 20. a precision filter screen; 21. a liquid level meter; 22. a door handle; 23. a reinforcing plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1 to 4, the drainage device for hydraulic engineering construction comprises a wastewater collection box 1, a collection box sealing door 2, a water pump fixing plate 4, an automatic water suction pump 5, a water inlet pipe 7, a water outlet pipe 8, a water discharge valve 9 and four groups of supporting feet 10, wherein a wastewater storage cavity is arranged inside the wastewater collection box 1, a taking and placing opening is formed in the top end of the wastewater collection box 1, a wastewater inlet is formed in the left end of the wastewater collection box 1, a water outlet is formed in the right end of the wastewater collection box 1, the taking and placing opening, the wastewater inlet and the water outlet are communicated with the wastewater storage cavity of the wastewater collection box 1, two groups of rotating hinges 3 are arranged at the rear end of the collection box sealing door 2, the collection box sealing door 2 is rotatably covered on the taking and placing opening of the wastewater collection box 1 through the two groups of rotating hinges 3, the water pump fixing plate 4 is fixedly arranged at the left, an automatic water suction pump 5 is fixedly arranged at the top end of a water pump fixing plate 4 through a connecting base 6, a water inlet pipe 7 is fixedly arranged at the left end of a wastewater collection box 1, the input end of the water inlet pipe 7 is communicated with the output end of the automatic water suction pump 5, the output end of the water inlet pipe 7 is communicated with a wastewater inlet of the wastewater collection box 1, a drain pipe 8 is fixedly arranged at the right end of the wastewater collection box 1, the input end of the drain pipe 8 is communicated with a water outlet of the wastewater collection box 1, a drain valve 9 is rotatably and fixedly arranged on the circumferential outer wall of the drain pipe 8, four groups of supporting feet 10 are respectively and fixedly arranged on four corners at the bottom end of the; at first start automatic suction pump 5, waste water with the production is under automatic suction pump 5's effect, the waste water storage intracavity of taking waste water collecting box 1 into through inlet tube 7 collects, treat waste water collecting box 1's waste water storage chamber and fill up the back, open drainage valve 9 again, waste water is discharged through drain pipe 8, waste water collecting box 1's overall structure is simple, high durability and convenient installation, the transport of being convenient for, but the engineering volume of greatly reduced construction, reduce intensity of labour, improve work efficiency, the drainage channel has been avoided digging and has been established, reduce the formation of soil sediment, need not the landfill, thereby the construction cost that significantly reduces, reduce and use the limitation.
The invention relates to a drainage device for hydraulic engineering construction, which further comprises two groups of sliding grooves 11, two groups of sliding blocks 12, two groups of rotating connecting frames 13 and two groups of pneumatic springs 14, wherein the sliding grooves 11 are formed in the left end and the right end in a wastewater storage cavity of a wastewater collection box 1, the two groups of sliding blocks 12 are respectively installed in the two groups of sliding grooves 11 in a sliding manner, the two groups of rotating connecting frames 13 are respectively and fixedly installed at the bottom end of a collection box sealing door 2, the two groups of pneumatic springs 14 are respectively and rotatably installed on the two groups of rotating connecting frames 13, pneumatic shafts 15 are respectively arranged in the two groups of pneumatic springs 14 in a sliding manner, and the two groups of pneumatic shafts 15 are respectively; through pneumatic spring 14 internal pneumatic shaft 15's automation flexible, make pneumatic shaft 15 drive sliding block 12 along 11 horizontal sliding of sliding tray, thereby can make collecting box sealing door 2 more gentle when opening or closing, it is more laborsaving when opening or closing collecting box sealing door 2, play the effect of buffering, avoid equipment to cause the impact to collecting box sealing door 2 because of the vibration when the operation, it is tighter to make collecting box sealing door 2 closed when the running state, reduce and use the limitation.
The drainage device for the hydraulic engineering construction further comprises a sludge grating 16, a drain outlet 17 and a drain door 18, wherein the sludge grating 16 is fixedly arranged in a wastewater storage cavity of the wastewater collection box 1, the front end and the rear end of the sludge grating 16 are respectively connected with the front inner wall and the rear inner wall of the wastewater collection box 1, the drain outlet 17 is arranged at the rear end of the wastewater collection box 1, and the drain door 18 is slidably and hermetically arranged on the drain outlet 17; through setting up mud grid 16, make waste water under mud grid 16's effect, filter the mud impurity of aquatic, make mud impurity deposit, 18 discharges mud impurity are opened to the rethread to carry out certain processing with waste water, make water more limpid, avoid at the drainage in-process, cause the jam of drain pipe 8, reduce and use the limitation.
The drainage device for the hydraulic engineering construction further comprises a water flow buffering cover 19, wherein the water flow buffering cover 19 is fixedly arranged on a wastewater inlet of the wastewater collecting box 1, a buffering hole is formed in the water flow buffering cover 19, the water flow buffering cover 19 is located in a wastewater storage cavity of the wastewater collecting box 1, and a buffering hole is formed in the water flow buffering cover 19; through setting up rivers buffering lid 19, can make the rivers velocity of flow that gets into 1 waste water storage chamber of wastewater collection box reduce, to the impact force that 1 inner wall of wastewater collection box produced when effectively reducing the rivers and getting into, play the effect of rivers buffering, avoid having washed sedimentary mud, make the deposit of mud faster, improve the use reliability.
The drainage device for the hydraulic engineering construction further comprises a precision filter screen 20, wherein the precision filter screen 20 is fixedly arranged on a water outlet of the wastewater collection box 1, and the precision filter screen 20 is positioned in a wastewater storage cavity of the wastewater collection box 1; through setting up precision filtering net 20, can further filter the less impurity of aquatic totally, avoid discharging external influence environment, more can reduce the risk that drain pipe 8 blockked up when the drainage, improve and use the reliability.
The drainage device for the hydraulic engineering construction further comprises a liquid level meter 21, wherein the liquid level meter 21 is fixedly installed at the front end of the waste water collecting box 1, a scale value is arranged on the front end face of the liquid level meter 21, and the input end of the liquid level meter 21 is communicated with a waste water storage cavity of the waste water collecting box 1; through setting up level gauge 21, reflect the liquid level height of 1 inside of wastewater collection box through the scale on the level gauge 21, can conveniently observe the change of 1 waste water storage intracavity liquid level of wastewater collection box, be convenient for in time fall the log raft, reduce and use the limitation.
The drainage device for the hydraulic engineering construction further comprises two groups of door handles 22, wherein the two groups of door handles 22 are respectively and fixedly arranged at the top end of the collecting box sealing door 2 in a bilateral symmetry mode; through setting up door handle 22, can be more laborsaving convenient when opening and closing collecting box sealing door 2, it is more simple convenient to make the operation, improves the practicality, reduces and uses the limitation.
The drainage device for the hydraulic engineering construction further comprises two groups of reinforcing plates 23, wherein the two groups of reinforcing plates 23 are respectively and fixedly and symmetrically arranged at the bottom end of the water pump fixing plate 4, and the right ends of the two groups of reinforcing plates 23 are connected with the left end of the wastewater collecting box 1; through setting up reinforcing plate 23, can make the connection of water pump fixed plate 4 and effluent collection box 1 more firm, make the bearing capacity of water pump fixed plate 4 obtain the reinforcing to make automatic suction pump 5 more steady at the operation in-process, avoid appearing the condition of rocking, the stability of reinforcing equipment operation improves the reliability in utilization.
The invention relates to a drainage device for hydraulic engineering construction, which is characterized in that when in work, firstly, a drainage valve 9 is closed, a water inlet pipe is communicated with an input end of an automatic water suction pump 5, the water inlet pipe is put into waste water, the automatic water suction pump 5 is started to pump the waste water into a waste water storage cavity of a waste water collection box 1, mud impurities in the waste water are filtered through a sludge grating 16, the filtered mud impurities are deposited at the bottom end of the waste water storage cavity of the waste water collection box 1, the water filtered through the sludge grating 16 is further filtered through a precision filter screen 20, the change of the liquid level of a liquid level meter 21 is observed, when the water level reaches a specified scribed line, the drainage valve 9 is opened to discharge the water, and the deposited mud impurities are cleaned through opening a drainage door 18.
According to the drainage device for hydraulic engineering construction, the installation mode, the connection mode or the arrangement mode are all common mechanical modes, and the drainage device can be implemented as long as the beneficial effects of the drainage device can be achieved; the automatic water suction pump of the drainage device for hydraulic engineering construction is purchased from the market, and technicians in the industry only need to install and operate the automatic water suction pump according to the attached operating instructions.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A drainage device for hydraulic engineering construction is characterized by comprising a wastewater collection box (1), a collection box sealing door (2), a water pump fixing plate (4), an automatic water suction pump (5), a water inlet pipe (7), a water outlet pipe (8), a water discharge valve (9) and four groups of supporting feet (10), wherein a wastewater storage cavity is arranged inside the wastewater collection box (1), a taking and placing opening is formed in the top end of the wastewater collection box (1), a wastewater inlet is formed in the left end of the wastewater collection box (1), a water outlet is formed in the right end of the wastewater collection box (1), the taking and placing opening, the wastewater inlet and the water outlet are communicated with the wastewater storage cavity of the wastewater collection box (1), two groups of rotating hinges (3) are arranged at the rear end of the collection box sealing door (2), the collection box sealing door (2) is rotatably covered on the taking and placing opening of the wastewater collection box (1) through the two, the water pump fixing plate (4) is fixedly arranged at the left end of the wastewater collecting box (1), the bottom end of the automatic water suction pump (5) is provided with a connecting base (6), the automatic water suction pump (5) is fixedly arranged at the top end of the water pump fixing plate (4) through the connecting base (6), the water inlet pipe (7) is fixedly arranged at the left end of the wastewater collecting box (1), the input end of the water inlet pipe (7) is communicated with the output end of the automatic water suction pump (5), the output end of the water inlet pipe (7) is communicated with a wastewater inlet of the wastewater collecting box (1), the drain pipe (8) is fixedly arranged at the right end of the wastewater collecting box (1), the input end of the drain pipe (8) is communicated with a water outlet of the wastewater collecting box (1), the drain valve (9) is rotatably and fixedly arranged on the outer wall of the circumference of the drain pipe (8), four groups, and the inner wall and the surface of the wastewater collection box (1) are subjected to rust-proof treatment.
2. The drainage device for water conservancy project construction according to claim 1, further comprising two sets of sliding grooves (11), two sets of sliding blocks (12), two sets of rotating connecting frames (13) and two sets of pneumatic springs (14), wherein the sliding grooves (11) are respectively arranged at the left end and the right end in the waste water storage cavity of the waste water collection tank (1), the two sets of sliding blocks (12) are respectively slidably arranged in the two sets of sliding grooves (11), the two sets of rotating connecting frames (13) are respectively and fixedly arranged at the bottom end of the collection tank sealing door (2), the two sets of pneumatic springs (14) are respectively and rotatably arranged on the two sets of rotating connecting frames (13), the pneumatic shafts (15) are respectively and slidably arranged in the two sets of pneumatic springs (14), and the two sets of pneumatic shafts (15) are respectively and rotatably connected with the two sets of sliding blocks (.
3. The drainage device for the water conservancy project construction as claimed in claim 2, further comprising a sludge grid (16), a drain outlet (17) and a drain door (18), wherein the sludge grid (16) is fixedly arranged in a wastewater storage cavity of the wastewater collection tank (1), the front end and the rear end of the sludge grid (16) are respectively connected with the front inner wall and the rear inner wall of the wastewater collection tank (1), the drain outlet (17) is arranged at the rear end of the wastewater collection tank (1), and the drain door (18) is slidably and hermetically arranged on the drain outlet (17).
4. The drainage device for water conservancy project construction according to claim 3, further comprising a water flow buffering cover (19), wherein the water flow buffering cover (19) is fixedly installed on the wastewater inlet of the wastewater collection tank (1), a buffering hole is formed in the water flow buffering cover (19), the water flow buffering cover (19) is located in the wastewater storage cavity of the wastewater collection tank (1), and a buffering hole is formed in the water flow buffering cover (19).
5. The drainage device for water conservancy project construction according to claim 4, further comprising a fine filter screen (20), wherein the fine filter screen (20) is fixedly installed on the water outlet of the wastewater collection tank (1), and the fine filter screen (20) is located in the wastewater storage cavity of the wastewater collection tank (1).
6. The drainage device for water conservancy project construction according to claim 5, further comprising a liquid level meter (21), wherein the liquid level meter (21) is fixedly installed at the front end of the wastewater collection tank (1), a scale value is arranged on the front end face of the liquid level meter (21), and the input end of the liquid level meter (21) is communicated with the wastewater storage cavity of the wastewater collection tank (1).
7. The drainage device for the water conservancy project construction as claimed in claim 6, further comprising two sets of door handles (22), wherein the two sets of door handles (22) are respectively and fixedly arranged at the top end of the collecting box sealing door (2) in a bilateral symmetry mode.
8. The drainage device for water conservancy project construction according to claim 7, further comprising two sets of reinforcing plates (23), wherein the two sets of reinforcing plates (23) are respectively and fixedly and symmetrically arranged at the bottom end of the water pump fixing plate (4), and the right ends of the two sets of reinforcing plates (23) are connected with the left end of the waste water collecting tank (1).
CN201911134879.8A 2019-11-19 2019-11-19 Hydrophobic device is used in hydraulic engineering construction Pending CN110924511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911134879.8A CN110924511A (en) 2019-11-19 2019-11-19 Hydrophobic device is used in hydraulic engineering construction

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Application Number Priority Date Filing Date Title
CN201911134879.8A CN110924511A (en) 2019-11-19 2019-11-19 Hydrophobic device is used in hydraulic engineering construction

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CN110924511A true CN110924511A (en) 2020-03-27

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CN201911134879.8A Pending CN110924511A (en) 2019-11-19 2019-11-19 Hydrophobic device is used in hydraulic engineering construction

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115180742A (en) * 2022-07-22 2022-10-14 吉安德和钨业有限公司 Ammonium paratungstate effluent disposal system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206503113U (en) * 2016-12-08 2017-09-19 许传志 A kind of steam trap connection for hydraulic engineering

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206503113U (en) * 2016-12-08 2017-09-19 许传志 A kind of steam trap connection for hydraulic engineering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115180742A (en) * 2022-07-22 2022-10-14 吉安德和钨业有限公司 Ammonium paratungstate effluent disposal system

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