CN208949906U - The centralizer device of precipitation well screen - Google Patents
The centralizer device of precipitation well screen Download PDFInfo
- Publication number
- CN208949906U CN208949906U CN201821245289.3U CN201821245289U CN208949906U CN 208949906 U CN208949906 U CN 208949906U CN 201821245289 U CN201821245289 U CN 201821245289U CN 208949906 U CN208949906 U CN 208949906U
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- China
- Prior art keywords
- wall
- chimney filter
- steel plate
- well screen
- junction steel
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Abstract
The utility model discloses a kind of centralizer devices of precipitation well screen, it applies in dewatering well construction field, it solves and cannot be guaranteed the vertical of well casing during placing well casing, cause well casing close to borehole wall, so that the thickness of the filtrate of subsequent filling is lower than 70mm, cause the technical issues of leaking husky accident, its key points of the technical solution are that including several support components on the chimney filter outer wall being arranged in borehole wall, the support component is circumferentially distributed along chimney filter outer wall, the support component includes two junction steel plates being arranged on steel plate outer wall, vertical range of two junction steel plates between one end and chimney filter outer wall of chimney filter outer wall is 70mm~90mm, two junction steel plates are connected with the vertical conflict steel plate of length direction between one end of chimney filter outer wall；Having the technical effect that for having guarantees that distance of the chimney filter apart from borehole wall is greater than 70mm during placing chimney filter, reduces and leaks husky accident.
Description
Technical field
The utility model relates to dewatering well construction field, in particular to a kind of centralizer device of precipitation well screen.
Background technique
It is required according to " hydrogeological handbook ", the thickness of dewatering well loaded filter cannot be below 70mm, according to practical proof, filter
Thickness of feed layer usually will cause the leakage sand phenomenon of dewatering well lower than the value.
Currently, the Chinese patent that notification number is CN205188934U discloses a kind of downcast well pipe of ribbing, it includes tool
There is the chimney filter of permeable hole, the chimney filter outer layer is successively enclosed with floor and filter layer.
Although this downcast well pipe improves the water penetration of well casing by filter layer, during placing well casing not
It can guarantee the vertical of well casing, cause well casing close to borehole wall, so that the thickness of the filtrate of subsequent filling is lower than 70mm, drop
The low filter effect of filtrate.
Utility model content
The purpose of the utility model is to provide a kind of centralizer devices of precipitation well screen, its advantage is that can filter placing
Guarantee that distance of the chimney filter outer wall apart from borehole wall is greater than 70mm during pipe, ensure that the filter effect of filtrate.
The above-mentioned technical purpose of the utility model technical scheme is that: a kind of precipitation well screen is helped
Positive device device, including several support components on the chimney filter outer wall that is arranged in borehole wall, the support component is along filter
Pipe outer wall is circumferentially distributed, and the support component includes two junction steel plates being arranged on chimney filter outer wall, the two junction steel plate back
Vertical range between one end from chimney filter outer wall and chimney filter outer wall is 70mm~90mm, and two junction steel plates are outside chimney filter
The vertical conflict steel plate of length direction is connected between one end of wall.
Through the above technical solutions, junction steel plate, which ensure that, contradicts steel plate far from chimney filter at least 70mm, even if chimney filter does not have
Positioned at drilling center or it is inclined by placement, borehole wall can be contacted to guarantee the thickness of subsequent filling filtrate by contradicting steel plate
Greater than 70mm, reduces and leak husky accident.
The utility model is further arranged to: the junction steel plate is equipped with vertical reinforcement steel close to one end of chimney filter outer wall
Plate, the steel plate of reinforcing cooperate towards the wall surface and chimney filter outer wall shape of chimney filter outer wall and are welded on chimney filter outer wall.
Become face connection through the above technical solutions, reinforcing steel plate and connecting junction steel plate with the line of chimney filter outer wall, more
Securely, support component strength enhancing.
The utility model is further arranged to: the junction steel plate is arranged far from one end opposite tilt of chimney filter and welds respectively
It connects and is contradicting steel plate upper and lower end faces.
Through the above technical solutions, the shape for the bridge placed vertically is formd between junction steel plate and conflict steel plate, and
Two junction steel plates and chimney filter outer wall of opposite tilt setting form stable triangular structure.
The utility model is further arranged to: the support component is circumferential weekly on chimney filter outer wall to be evenly distributed with three
It is a.
Through the above technical solutions, foring stable triangular structure on one week, protected in the case where saving material
Having demonstrate,proved regardless of chimney filter can be more than certain distance apart from borehole wall when tilting toward which direction.
The utility model is further arranged to: the vertical through slot passed through for filtrate is offered on the junction steel plate.
Through the above technical solutions, the speed that filtrate circulates downwards from support component when vertical through slot accelerates filling filtrate
Rate.
The utility model is further arranged to: the reinforcement steel plate and/or being contradicted and is offered that diameter is several to be less than on steel plate
The horizontal through hole of filtrate diameter.
Through the above technical solutions, solid reinforcement steel plate and conflict steel between chimney filter outer wall and the dewatering well borehole wall
Plate reduces the rate of collecting of water, and through-hole increases the rate that the water outside drilling collects after media filtration into chimney filter.
The utility model is further arranged to: the one side for contradicting steel plate towards chimney filter outer wall is equipped with several reinforcements
Column, the reinforcing prop are connected to chimney filter outer wall far from the one end for contradicting steel plate.
Through the above technical solutions, reinforcing prop, which enhances, contradicts steel plate by conflict steel plate resistance deformation after the effect of external force
Ability.
The utility model is further arranged to: it further include several horizontal location bars that chimney filter outer wall upper end is set, it is described
Locating rod is evenly distributed on chimney filter outer wall and one end and borehole wall conflict far from chimney filter outer wall.
Through the above technical solutions, locating rod ensure that chimney filter upper end is located at drill center, bored to increase chimney filter
Intermediate degree in hole.
In conclusion the utility model has the following beneficial effects:
1. support component ensure that distance of the chimney filter apart from borehole wall is greater than 70mm, reduces and leak husky accident；
2. locating rod ensure that chimney filter upper end is located at drill center, to increase intermediate degree of the chimney filter in drilling.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the present embodiment；
Fig. 2 is the structural schematic diagram of the present embodiment support component；
Fig. 3 is the structural schematic diagram that the present embodiment reinforces steel plate；
Fig. 4 is the structural schematic diagram of the present embodiment reinforcing prop.
Appended drawing reference: 1, it drills；2, support component；21, junction steel plate；22, steel plate is contradicted；3, reinforce steel plate；4, vertical
Through slot；5, through-hole；6, reinforcing prop；7, locating rod；8, chimney filter.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:
A kind of centralizer device of precipitation well screen, with reference to Fig. 1 and Fig. 2, including the filter being arranged in 1 hole wall of drilling
Several support components 2 on 8 outer wall of pipe, several support components 2 were distributed around 8 outer wall of chimney filter one week, and support component 2 includes welding
Two junction steel plates 21 on 8 outer wall of chimney filter, junction steel plate 21 are horizontally disposed and towards the side of chimney filter 8 and 8 outer wall shape of chimney filter
Shape cooperation, vertical range of two junction steel plates 21 between 8 outer wall of one end and chimney filter of 8 outer wall of chimney filter are 70mm~90mm,
It is set as 80mm in the present embodiment, two junction steel plates 21 are welded with perpendicular with length direction between one end of 8 outer wall of chimney filter
With width, junction steel plate 21 and conflict 22 thickness of steel plate are 5mm for straight conflict steel plate 22, conflict steel plate 22 and junction steel plate 21,
Contradicting steel plate 22, length is 200mm in the vertical direction.
In the course of work, junction steel plate 21 ensure that the conflict steel plate 22 that junction steel plate 21 is connected far from 8 one end of chimney filter
Centainly it is greater than 70mm apart from 8 outer wall of chimney filter, accordingly even when operator is in installation course since chimney filter 8 does not have misoperation to the end
Have be located at drilling 1 be placed centrally or slant setting drilling 1 in, contradict steel plate 22 can contact at drilling 1 hole wall to guarantee after
The thickness of continuous filling filtrate is greater than 70mm, to guarantee subsequent pour to the filtrate thickness between 1 inner wall of 8 outer wall of chimney filter and drilling
Greater than 70mm, to reduce the husky accident of leakage.
With reference to Fig. 2, the connection type between 8 outer wall of original junction steel plate 21 and chimney filter is line connection, more built on the sand, in
It is that vertical reinforcement steel plate 3 is connected with close to one end of 8 outer wall of chimney filter in junction steel plate 21, reinforcing 3 cross section of steel plate is and filter
The circular arc of 8 outer wall shape of pipe cooperation, reinforcing 3 vertical direction length of steel plate is 50mm and with junction steel plate 21 with width, reinforces steel plate 3
It is welded on 8 outer wall of chimney filter, is formed between junction steel plate 21 and reinforcement steel plate 3 by being welded to connect or being integrated bending.
In the course of work, junction steel plate 21 is connect by reinforcement steel plate 3 with the line of 8 outer wall of chimney filter becomes face connection, so that branch
Connection type between support component 2 and chimney filter 8 is more firm.
With reference to Fig. 2, in order to enhance the impact resistance of support component 2, by two junction steel plates 21 in every group of support component 2
One end opposite tilt far from chimney filter 8 is arranged, and two junction steel plates 21 are respectively welded at far from one end of chimney filter 8 and contradict on steel plate 22
Lower two sides, junction steel plate 21 is 120mm long, and vertical range of the one end of junction steel plate 21 far from chimney filter 8 apart from 8 outer wall of chimney filter is
80mm。
In the course of work, the bridge for being placed on 8 outer wall of chimney filter vertically is formd between junction steel plate 21 and conflict steel plate 22
Shape, and two junction steel plates 21 of opposite tilt setting form stable triangular structure with 8 outer wall of chimney filter, are contradicting steel plate
22 by be directed toward 8 outer wall of chimney filter power when, tilted-putted junction steel plate 21 is not susceptible to deformation, also just improves each support
The intensity of component 2.
With reference to Fig. 3, if the support component 2 being distributed on 8 outer wall of chimney filter excessively will cause unnecessary waste, but if
It is very few, it will make chimney filter 8 that cannot effectively correct when tilting, it is contemplated that using effect and two aspects that economize on resources, support
Component 2 forms stable equilateral triangle structure there are three being circumferentially uniformly distributed weekly on 8 outer wall of chimney filter on one week,
It can be super apart from 1 hole wall of drilling when being tilted toward which direction regardless of chimney filter 8 guaranteeing to ensure that in the case where saving material
Cross certain distance.
With reference to Fig. 4, after being placed into chimney filter 8 in drilling 1, need to fill filter between 1 inner wall of 8 outer wall of chimney filter and drilling
Material can reduce fill rate because of the obstruction of support component 2 when fine and closely woven filtrate passes through support component 2, then in connection steel
It offers the vertical through slot 4 passed through for filtrate on plate 21, in filling process, when filtrate passes through support component 2, first passes through top
The vertical through slot 4 of junction steel plate 21, after contradicting the gap between steel plate 22 and chimney filter 8, then junction steel plate 21 from below
Vertical through slot 4 in slide, improve charging efficiency.
With reference to Fig. 4, reinforces steel plate 3 and contradict steel plate 22 due to having sheltered from 8 outer wall of part chimney filter, so when outside chimney filter 8
When the water in portion is entered in chimney filter 8, reinforce steel plate 3 and contradict steel plate 22 reducing the efficiency of drawing water of dewatering well, in order to which water can be from
Reinforcement steel plate 3 and conflict steel plate 22 pass through, and it is several less than filtrate to offer diameter on reinforcing steel plate 3 and/or conflict steel plate 22
The horizontal through hole 5 of diameter.
In the course of work, through-hole 5 blocks passing through for filtrate, but the water after media filtration can be from reinforcement steel plate
It 3 and/or contradicts steel plate 22 and passes through to flowing to inside chimney filter 8.
With reference to Fig. 4, it is longer contradict steel plate 22 during down tube by extraneous impact force when shape may occur
Become, to influence subsequent chimney filter 8 at a distance from 1 hole wall of drilling, contradicts the deformation after by impact force of steel plate 22 to reduce,
The one side for contradicting steel plate 22 towards 8 outer wall of chimney filter is equipped with three horizontal reinforcing props 6, and reinforcing prop 6 is far from conflict steel plate 22
One end be welded in 8 outer wall of chimney filter, reinforcing prop 6 ensure that contradict steel plate 22 far from drilling 1 hole wall distance do not occur it is larger
Variation.
With reference to Fig. 1 and Fig. 3, after 8 down tube of chimney filter, if can guarantee, the nozzle of 8 upper end of chimney filter is located at 1 center of drilling,
The possibility that chimney filter 8 is centrally placed in drilling 1 can be increased, be then equipped with four equally distributed levels in 8 outer wall upper end of chimney filter
Locating rod 7, the section of locating rod 7 are rectangle, and locating rod 7 is located at 2 top of support component and locating rod 7 far from 8 outer wall of chimney filter
One end contacts at 1 hole wall of drilling.
In work progress, one end that chimney filter 8 is not provided with locating rod 7 is first put into drilling 1 by operator, when entire chimney filter
8 be located at drilling 1 in and under the action of support component 2 guarantee chimney filter 8 far from drilling 1 hole wall 70mm or more when, operator passes through
Position of 8 upper end of chimney filter in drilling 1 is adjusted, to guarantee that four locating rods 7 contact at 1 hole of drilling far from one end of chimney filter 8
Wall, to guarantee that the nozzle of 8 upper end of chimney filter is located at 1 center of drilling, operator can be from the gap between locating rod 7 after this
Fill filtrate.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of centralizer device of precipitation well screen, which is characterized in that including the chimney filter being arranged in drilling (1) hole wall
(8) several support components (2) on outer wall, the support component (2) is circumferentially distributed along chimney filter (8) outer wall, the support component
It (2) include two junction steel plates (21) being arranged on chimney filter (8) outer wall, two junction steel plates (21) deviate from chimney filter (8) outer wall
One end and chimney filter (8) outer wall between vertical range be 70mm~90mm, two junction steel plates (21) away from chimney filter (8) outside
The conflict steel plate (22) that length direction is distributed vertically is connected between one end of wall.
2. the centralizer device of precipitation well screen according to claim 1, which is characterized in that the junction steel plate (21) is leaned on
One end of nearly chimney filter (8) outer wall is equipped with vertical reinforcement steel plate (3), the described reinforcement wall surface of steel plate (3) towards chimney filter (8) outer wall
Cooperate with chimney filter (8) outer wall shape and is welded on chimney filter (8) outer wall.
3. the centralizer device of precipitation well screen according to claim 1, which is characterized in that the junction steel plate (21) is remote
One end opposite tilt from chimney filter (8), which is arranged and is respectively welded at, contradicts steel plate (22) upper and lower end faces.
4. the centralizer device of precipitation well screen according to claim 1, which is characterized in that the support component (2) exists
Three are circumferentially evenly distributed on chimney filter (8) outer wall.
5. the centralizer device of precipitation well screen according to claim 1, which is characterized in that on the junction steel plate (21)
Offer the vertical through slot (4) passed through for filtrate.
6. the centralizer device of precipitation well screen according to claim 2, which is characterized in that the reinforcement steel plate (3) and/
Or it contradicts and offers several horizontal through hole (5) less than filtrate diameter of diameter on steel plate (22).
7. the centralizer device of precipitation well screen according to claim 1, which is characterized in that conflict steel plate (22) court
Several reinforcing props (6) are equipped with to the one side of chimney filter (8) outer wall, the reinforcing prop (6) connects far from the one end for contradicting steel plate (22)
It connects in chimney filter (8) outer wall.
8. the centralizer device of precipitation well screen according to claim 1, which is characterized in that further include being arranged in chimney filter
(8) several horizontal location bars (7) of outer wall upper end, the locating rod (7) are evenly distributed on chimney filter (8) outer wall and far from chimney filters
(8) one end of outer wall and drilling (1) hole wall contradict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821245289.3U CN208949906U (en) | 2019-04-20 | 2019-04-20 | The centralizer device of precipitation well screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821245289.3U CN208949906U (en) | 2019-04-20 | 2019-04-20 | The centralizer device of precipitation well screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208949906U true CN208949906U (en) | 2019-06-07 |
Family
ID=66733016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821245289.3U Expired - Fee Related CN208949906U (en) | 2019-04-20 | 2019-04-20 | The centralizer device of precipitation well screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208949906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235972A (en) * | 2020-03-23 | 2020-06-05 | 蚌埠市东翔铁路工程有限公司 | Disposable anchoring device |
-
2019
- 2019-04-20 CN CN201821245289.3U patent/CN208949906U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235972A (en) * | 2020-03-23 | 2020-06-05 | 蚌埠市东翔铁路工程有限公司 | Disposable anchoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20200420 |