CN213809245U

CN213809245U - Circulating water pressure return ditch wall bushing seal structure

Info

Publication number: CN213809245U
Application number: CN202022879914.3U
Authority: CN
Inventors: 钟铭; 付利民; 周桓; 邬江虎
Original assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Current assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-27
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a circulating water pressure return ditch wall bushing seal structure, including annular steel sheet, the annular steel sheet lower extreme is connected with the circulating water delivery pipe, both ends position all is provided with flexible joint mixture about the annular steel sheet upper end, and the middle left position that leans on flexible joint mixture left end is located upside position and is connected with the flange gland, flange gland left side is close to intermediate position swing joint and has the nut, the nut right-hand member is provided with the double-screw bolt, the double-screw bolt runs through inside the flange gland, and the middle right position that leans on the right flexible joint mixture right-hand member is provided with polysulfide sealant, and is two sets of flexible joint mixture upper end is connected with the baffle, the baffle upper end is connected with the concrete wall, the concrete wall left side is provided with the wing ring. This circulating water pressure return water ditch wall bushing seal structure is difficult for the seepage, and sealed effect is good, and the security that can ensure operation personnel and maintainer is not leaked.

Description

Circulating water pressure return ditch wall bushing seal structure

Technical Field

The utility model relates to a seal structure technical field specifically is a circulating water pressure return water ditch wall bushing seal structure.

Background

The circulating water valve connecting well and the flow measuring well are generally arranged below the ground surface, and sand and soil are used for landfill outside the valve connecting well and the flow measuring well. The wall bushing and the valve well are poured together, a certain gap is reserved between the circulating water pipeline and the wall bushing, and in order to prevent surface water from permeating into the valve well, a sealing material is filled between the wall bushing and the circulating water pipeline;

circulating water pressure return ditch wall bushing seal structure on market is because the pipe diameter is big, sealed face is big, the low seal department that leads low groundwater to pass through wall bushing and circulating water pipeline easily flows into the valve well in the relief of land, can lead to the ponding of valve well inside, thereby influence the operation, the maintainer overhauls, the operation, ponding arouses the pipeline corrosion easily in addition, because when the pipeline is great, there is partial region construction not in place easily in the sealed face overlength work progress, and fill and lead to the seepage easily in the aspect of not, for this reason, we provide a circulating water pressure return ditch wall bushing seal structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circulating water pressure return ditch wall bushing seal structure, with the circulating water pressure return ditch wall bushing seal structure on the market who proposes in solving above-mentioned background art because the pipe diameter is big, sealed face is big, the low seal that leads low groundwater easily flows in the valve well through wall bushing and circulating water pipeline's sealed department, can lead to the inside ponding of valve well, thereby influence the operation, the maintainer overhauls, the operation, ponding arouses the pipeline corrosion easily in addition, because the pipeline is great, there is partial regional construction not in place easily in the sealed face overlength work progress, and fill and lead to the seepage easily in the aspect of not.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a circulating water pressure return ditch wall bushing seal structure, includes annular steel sheet, the annular steel sheet lower extreme is connected with the circulating water delivery pipe, both ends position all is provided with flexible joint filling material about the annular steel sheet upper end, and the centre leans on left position flexible joint filling material left end is located upside position and is connected with the flange gland, flange gland left side is close to intermediate position swing joint has the nut, the nut right-hand member is provided with the double-screw bolt, the double-screw bolt runs through inside the flange gland, and the centre leans on right position flexible joint filling material right-hand member is provided with polysulfide sealant, and is two sets of flexible joint filling material upper end is connected with the baffle, the baffle upper end is connected with the concrete wall, the concrete wall left side is provided with the wing ring.

As a further aspect of the utility model, annular steel sheet, flexible joint filling material, flange gland, wing ring and concrete wall all are provided with two sets ofly, and it is the symmetry setting about the circulating water delivery pipe respectively.

As a further scheme of the utility model, the annular steel sheet lower extreme is controlled both ends position and is all grouted there is hemp thread cement, middle left side position hemp thread cement is close to right side below position and sets up in the retaining ring, and is two sets of connect tightly there is tar hemp thread between the hemp thread cement, and is two sets of tar hemp thread lower extreme is connected with the wall bushing, wing ring parallel arrangement three sets up in wall bushing lower extreme.

As a further aspect of the present invention, the retainer ring, the wall bushing and the tar hemp thread are provided with two sets of wing rings and are symmetrically disposed about the circulating water supply pipe, and the three sets of wing rings are perpendicularly disposed with the wall bushing.

As a further scheme of the utility model, the outside cover of wall bushing is equipped with the valve well, the valve well right-hand member is provided with the cat ladder, the annular steel sheet is close to intermediate position parallel arrangement and has two sets of ladder posts, the valve well right-hand member is located the downside position and has seted up the sump pit.

As a further aspect of the utility model, the valve well is provided with two sets ofly and it is the symmetry setting about the ladder post, the cat ladder is provided with two sets ofly, and its one set is located two sets ofly between the ladder post.

Compared with the prior art, the beneficial effects of the utility model are that: according to the sealing structure of the wall bushing of the circulating water pressure backwater ditch, after a pipeline of a circulating water supply pipe is installed, a certain gap is formed between the wall bushing and the circulating water supply pipe, so that surface water is prevented from permeating into a valve well, a flexible joint filling material can be filled between the wall bushing and the circulating water supply pipe, hemp cement is filled outside the valve well before landfill, then tar hemp is embedded inwards from the inner side of the valve well, finally hemp cement is filled again from the inner side of the valve well, and the purpose of difficult leakage is achieved by filling the flexible joint filling material for multiple times;

the flange gland inside the valve well, the studs, the nuts and the wing rings form a structure similar to a valve packing gland, flexible gap filling materials are added into gaps, then the flange gland is used for confining compression, a good sealing effect is achieved, wherein the studs and the wing rings are in threaded connection, 24 studs in total are uniformly arranged on the whole ring of wing rings, the nuts are used for fastening the flange gland to achieve a sealing effect after the flexible gap filling materials are added to the side of the valve well, and the wall penetrating sealing structure is a flexible sealing structure, so that the problem of leakage at the wall penetrating pipeline position caused by the fact that the ground is sunken, sealing materials are not in place and the like can be perfectly solved, the sealing effect is good, leakage does not exist, and the safety of operators and maintainers can be ensured.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the structure of the valve well of the present invention;

fig. 4 is a schematic structural diagram of part a of the present invention.

In the figure: 1. an annular steel plate; 2. ladder posts; 3. a flexible joint filling material; 4. a flange gland; 5. a nut; 6. a stud; 7. polysulfide sealant; 8. hemp cement; 9. a retainer ring; 10. a wing ring; 11. a wall bushing; 12. tar hemp thread; 13. a baffle plate; 14. a circulating water supply pipe; 15. a sump; 16. climbing a ladder; 17. a valve well; 18. a concrete wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a circulating water pressure backwater ditch wall bushing sealing structure comprises an annular steel plate 1, the lower end of the annular steel plate 1 is connected with a circulating water supply pipe 14, the left and right ends of the upper end of the annular steel plate 1 are respectively provided with a flexible joint filling material 3, the left end of the flexible joint filling material 3 close to the left in the middle is connected with a flange gland 4, the left side of the flange gland 4 close to the middle is movably connected with a nut 5, the right end of the nut 5 is provided with a stud 6, the stud 6 penetrates through the flange gland 4, the right end of the flexible joint filling material 3 close to the right in the middle is provided with polysulfide sealing paste 7, the upper ends of the two groups of flexible joint filling materials 3 are connected with a baffle 13, the upper end of the baffle 13 is connected with a concrete wall 18, the left side of the concrete wall 18 is provided with a wing ring 10, the annular steel plate 1, the flexible joint filling material 3, the flange gland 4, the wing ring 10 and the concrete supply pipe 18 are respectively provided with two groups which are symmetrically arranged about the circulating water supply pipe 14, after the pipeline installation of the circulating water supply pipe 14 is completed, due to the fact that a certain gap exists between the wall bushing 11 and the circulating water supply pipe 14, in order to prevent surface water from permeating into the valve well 17, the flexible joint filling material 3 can be filled between the wall bushing 11 and the circulating water supply pipe 14, hemp cement 8 is filled outside the valve well 17 before burying, then tar hemp 12 is embedded inwards from the inner side of the valve well 17, finally hemp cement 8 is filled again from the inner side of the valve well 17, and the purpose of being not easy to leak is achieved by filling the flexible joint filling material 3 for multiple times.

The left side and the right side of the lower end of an annular steel plate 1 are both filled with hemp cement 8, the middle position close to the left side is provided with a retaining ring 9 near the right lower position of the hemp cement 8, tar hemp 12 is tightly connected between two groups of hemp cements 8, the lower ends of two groups of tar hemp 12 are connected with a wall bushing 11, three groups of wing rings 10 are arranged at the lower end of the wall bushing 11 in parallel, two groups of retaining rings 9, the wall bushing 11 and the tar hemp 12 are arranged in parallel and are respectively arranged symmetrically with respect to a circulating water supply pipe 14, three groups of wing rings 10 are arranged vertically with the wall bushing 11, a valve well 17 is sleeved outside the wall bushing 11, the right end of the valve well 17 is provided with a ladder stand 16, two groups of ladder stands 2 are arranged at the annular steel plate 1 near the middle position in parallel, a water collecting pit 15 is arranged at the right end of the valve well 17 at the lower side, two groups of valve wells 17 are arranged symmetrically with respect to the ladder stands 2, and two groups of ladder stands 16 are arranged, one group of the flexible through-wall sealing structure is positioned between the two groups of ladder columns 2, the flange gland 4, the studs 6, the nuts 5 and the wing rings 10 in the valve well 17 form a structure similar to a valve packing gland, the flexible joint filling material 3 is added into gaps, then the flange gland 4 is used for confining and compressing to play a good sealing role, wherein the studs 6 and the wing rings 10 are in threaded connection, 24 studs 6 are uniformly arranged on the whole circle of wing rings 10 in total, and the nuts 5 are used for fastening the flange gland 4 after the flexible joint filling material 3 is added to the side of the valve well 17 to achieve a sealing effect.

The working principle is as follows: for the sealing structure of the circulating water pressure backwater ditch wall bushing, three groups of wing rings 10 are welded on each group of wall bushing 11, the thickness of each group of wing rings 10 is the same, so that a wall bushing 11 and a wing ring 10 assembly are formed, the wall bushing is pre-embedded on a valve well 17 wall when the valve well 17 is poured, a check ring 9 is made of common carbon steel, so that the check ring 9 is welded on the wall bushing 11, after a circulating water supply pipe 14 is installed in a pipeline, a certain gap is formed between the wall bushing 11 and the circulating water supply pipe 14, in order to prevent surface water from permeating into the valve well 17, a flexible joint filling material 3 can be filled between the wall bushing 11 and the circulating water supply pipe 14, hemp thread cement 8 is poured outside the valve well 17 before filling, tar hemp threads 12 are embedded from the inner side of the valve well 17 to the inner side, finally hemp thread cement 8 is re-grouted from the inner side of the valve well 17, and the flexible joint filling material 3 is filled for many times, and after positioning of the circulating water supply pipe 14 is completed, filling the polysulfide sealant 7 and the flexible joint filling material 3 between the baffle plate 13 and the annular steel plate 1, and welding and connecting the annular steel plate 1 with the wing ring 10 and the circulating water supply pipe 14 after compaction. The flange gland 4, the studs 6, the nuts 5 and the wing rings 10 inside the valve well 17 form a structure similar to a valve packing gland, the flexible joint filling material 3 is added into a gap, then the flange gland 4 is used for confining compression, a good sealing effect is achieved, wherein the studs 6 and the wing rings 10 are in threaded connection, 24 studs 6 are uniformly arranged on the whole circle of wing rings 10 in total, the nuts 5 are used for fastening the flange gland 4 to achieve a sealing effect after the flexible joint filling material 3 is added to the side of the valve well 17, and the wall penetrating seal structure is a flexible seal structure, so that the problem of leakage at a wall penetrating pipeline caused by the fact that the ground is sunken, the sealing material is not in place and the like can be perfectly solved, the sealing effect is good, leakage does not exist, and the safety of operators and maintainers can be ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circulating water pressure return water ditch wall bushing seal structure, includes annular steel sheet (1), its characterized in that: annular steel sheet (1) lower extreme is connected with circulating water supply pipe (14), both ends position all is provided with flexible joint mixture (3) about annular steel sheet (1) upper end, and the centre leans on left side position flexible joint mixture (3) left end position in the upper side position is connected with flange gland (4), flange gland (4) left side is close to intermediate position swing joint has nut (5), nut (5) right-hand member is provided with double-screw bolt (6), double-screw bolt (6) run through inside flange gland (4), and the centre leans on right side position flexible joint mixture (3) right-hand member is provided with polysulfide sealant (7), and is two sets of flexible joint mixture (3) upper end is connected with baffle (13), baffle (13) upper end is connected with concrete wall (18), concrete wall (18) left side is provided with wing ring (10).

2. The sealing structure of the circulating water pressure backwater ditch wall bushing according to claim 1, characterized in that: the annular steel plate (1), the flexible joint filling material (3), the flange gland (4), the wing ring (10) and the concrete wall (18) are provided with two groups and are symmetrically arranged relative to a circulating water supply pipe (14).

3. The sealing structure of the circulating water pressure backwater ditch wall bushing according to claim 1, characterized in that: annular steel sheet (1) lower extreme is controlled both ends position and is all grouted hemp silk cement (8), and the centre leans on left position hemp silk cement (8) are close to right side below position and set up in retaining ring (9), and are two sets of connect between hemp silk cement (8) and connect tightly there are tar hemp silk (12), and are two sets of tar hemp silk (12) lower extreme is connected with wall bushing (11), wing ring (10) parallel arrangement three sets are in wall bushing (11) lower extreme.

4. The sealing structure of the circulating water pressure backwater ditch wall bushing according to claim 3, characterized in that: the check ring (9), the wall-through sleeve (11) and the tar hemp (12) are respectively provided with two groups which are symmetrically arranged relative to a circulating water supply pipe (14), and the three groups of wing rings (10) are vertically arranged with the wall-through sleeve (11).

5. The sealing structure of the circulating water pressure backwater ditch wall bushing according to claim 3, characterized in that: the wall bushing (11) is externally sleeved with a valve well (17), the right end of the valve well (17) is provided with a ladder stand (16), the annular steel plate (1) is close to the middle position and is provided with two sets of ladder columns (2) in parallel, and the right end of the valve well (17) is located at the lower side position and is provided with a water collecting pit (15).

6. The sealing structure of the circulating water pressure backwater ditch wall bushing according to claim 5, characterized in that: the valve well (17) is provided with two groups which are symmetrically arranged relative to the ladder posts (2), and the ladder stands (16) are provided with two groups, wherein one group is positioned between the two groups of ladder posts (2).