CN107830291B - Converging connection box and mounting and application process thereof - Google Patents
Converging connection box and mounting and application process thereof Download PDFInfo
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- CN107830291B CN107830291B CN201711215856.0A CN201711215856A CN107830291B CN 107830291 B CN107830291 B CN 107830291B CN 201711215856 A CN201711215856 A CN 201711215856A CN 107830291 B CN107830291 B CN 107830291B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/026—Branch units, e.g. made in one piece, welded, riveted with a layer protecting against erosion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a confluence connecting box, which is a connecting piece for redirecting water interruption of a raw water pipe to a newly-built water pipe, and comprises a water tank foundation, a plurality of embedded steels and a box body, wherein the embedded steels are uniformly embedded above the water tank foundation side by side; the side surface of the box body is provided with a raw water pipe inlet and a raw water pipe outlet corresponding to the raw water pipe, a new water pipe inlet and a new water pipe outlet corresponding to the new water pipe, and the top of the box body is provided with a manhole with the diameter not smaller than 1 m; the raw water pipe inlet and the raw water pipe outlet are respectively provided with a corresponding seal head to be welded; and a plurality of circles of reinforcing ribs are uniformly arranged outside the side surface of the box body in a surrounding manner. The invention also discloses an installation and application process of the confluence connecting box, and the confluence connecting box is used for carrying out diversion of the raw water pipe, so that the water stopping time required by diversion of the raw water pipe can be shortened, and the water treatment efficiency of the processes such as sewage treatment and the like is not affected.
Description
Technical Field
The invention relates to a confluence connection box and an installation and application process thereof.
Background
In the existing sewage treatment room and other processes needing drainage, the condition of water pipe diversion often exists, if the original water pipe needs to be cut off according to the traditional construction method, then a new pipeline is welded, the method can possibly cause long-time water cut-off in the sewage treatment room, even the shutdown condition of the whole sewage treatment room, and the sewage treatment efficiency is affected.
Disclosure of Invention
One of the purposes of the present invention is to solve the above technical problems, and provide a confluence connection box, where the confluence connection box is arranged to shorten the water stopping time required for diversion of raw water pipes, and not to affect the original pipeline function or to minimize the influence on the original pipeline function.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the junction box is a junction piece for redirecting the water interruption of a raw water pipe to a newly-built water pipe, and comprises a water tank foundation, a plurality of embedded steels uniformly embedded above the water tank foundation side by side and a box body arranged on the embedded steels; the side surface of the box body is provided with a raw water pipe inlet and a raw water pipe outlet corresponding to the raw water pipe, a new water pipe inlet and a new water pipe outlet corresponding to the new water pipe, and the top of the box body is provided with a manhole with the diameter not smaller than 1 m; the raw water pipe inlet and the raw water pipe outlet are respectively provided with a corresponding seal head to be welded; and a plurality of circles of reinforcing ribs are uniformly arranged outside the side surface of the box body in a surrounding manner.
Specifically, the box is cuboid, and the box top also is equipped with a plurality of strengthening ribs, and every strengthening rib both ends follow box side downwardly extending to box side bottom.
Specifically, the outer surface of the box body is also provided with a waterproof and anti-corrosion layer, and the waterproof and anti-corrosion layer comprises an inner layer cold primer oil layer, a middle layer glass fiber cloth anti-corrosion layer and an outer layer cold primer oil layer which are sequentially arranged outside the box body.
Preferably, a blind plate is arranged on the manhole.
Preferably, the water tank foundation is a C20 concrete foundation with the height not less than 200 mm.
Preferably, the embedded steel and the reinforcing ribs are 10# channel steel.
The invention also aims to provide the mounting and application process of the confluence connecting box, which can mount the connecting box under the condition that the raw water pipe is not cut off, and can simultaneously finish cutting off the raw water pipe and connecting a newly built water pipe after the connecting box is mounted, thereby greatly shortening the time required for diversion of the raw water pipe.
The mounting and application process of the confluence connection box comprises the following steps of:
A. the design of the connecting box: the connecting box comprises a box bottom plate, box side plates and a box top plate, a raw water pipe inlet and a raw water pipe outlet are respectively formed in positions, corresponding to the raw water pipe, of the side surface of the connecting box body according to the pipe diameters of the raw water pipe and the newly-built water pipe, and the side plates where the raw water pipe inlet and the raw water pipe outlet are located are formed by welding transverse splice plates; a new water pipe inlet and a new water pipe outlet are respectively formed in the positions, corresponding to the new water pipes, of the side surfaces of the connecting box body;
B. connection box installation
(1) Digging a water tank foundation pit below a new water pipe from which water is cut off and diverted, injecting C20 concrete into the water tank foundation pit, and embedding embedded steel above the water tank foundation pit;
(2) after the water tank foundation is shaped, welding a bottom plate of the tank body above the embedded steel;
(3) welding a box body side plate provided with a new water pipe inlet and a new water pipe outlet to the side edge of a box body bottom plate corresponding to the new water pipe;
(4) welding splice plates of side plates where the raw water pipe inlet and the raw water pipe outlet are positioned, enabling the raw water pipe to sequentially pass through the corresponding box body splice side plates from the raw water pipe inlet and the raw water pipe outlet, and then welding the splice side plates to the side edges, corresponding to the raw water pipe, of the box body bottom plate;
(5) directly welding the edges of adjacent box body side plates which are in contact with each other, welding adjacent box body side plates which are not in contact with each other through a connecting steel plate, and welding the bottom edges of the connecting steel plates with the bottom plate;
C. welding a newly-built water pipe: the newly built water pipe is divided into two sections, paved outside the inlet and outlet of the newly built water pipe as required, and welded with a valve respectively, and welded with the corresponding inlet and outlet of the newly built water pipe through steel pipes respectively;
D. water cut-off
(1) Closing both valves on the newly built water pipe;
(2) opening holes above the raw water pipe outside the connecting box, and extracting liquid in the raw water pipe;
(3) after the liquid in the raw water pipe is drained, cutting off the raw water pipe section in the connecting box from the box body, and taking out the raw water pipe section from the upper part of the box body; then, respectively welding the raw water pipe with the raw water pipe inlet and the raw water pipe outlet, and respectively welding a sealing head at the cutting part of the raw water pipe in the connecting box;
E. sealing the box: and welding the top plate of the connecting box with the tops of all the side plates of the connecting box and the connecting steel plate.
Further, after the box body is sealed, the nondestructive detection of the welding seam is also carried out, and the method specifically comprises the following steps: after the box body is sealed, removing dirt on one side of a box body welding line inspection, coating chalk powder slurry, airing, coating kerosene on the other side of the welding line, and inspecting whether the chalk powder has kerosene leakage spots or not after 30 minutes.
Furthermore, after nondestructive detection of the welding seam of the box body, the box body is waterproof and antiseptic, and the method specifically comprises the following steps: and (3) coating a layer of cold primer oil on the outer surface of the box body, then adopting a multilayer continuous paving method to lay glass fiber cloth as an anti-corrosion layer, and finally coating a layer of cold primer oil on the anti-corrosion layer.
Compared with the prior art, the invention has the following beneficial effects:
(1) The main raw materials of the connecting box are carbon steel plates, C20 concrete and 10# channel steel, which are common materials in the construction process, have wide sources and low prices, and do not increase the diversion cost of raw water pipes.
(2) The connecting box is simple in structure, mainly comprises a water tank foundation and a box body, wherein the welding process between each side plate and the splice plate in the box body is mature, the box body is simple to manufacture, special people are not required to manufacture, and the labor cost is low.
(3) The connecting box is installed on site, and the raw materials of the connecting box are mainly plates (carbon steel plates), strips (channel steel) and bags (C20 concrete), so that the connecting box has the advantages of small volume and very convenient transportation.
(4) The connecting box is used as a connecting piece for a new water pipe for diversion of the raw water pipe, the connecting box can be installed under the condition that the raw water pipe is not cut off, and the cutting off of the raw water pipe and the connection of the new water pipe can be simultaneously completed after the connecting box is installed, so that the length of the raw water pipe required for diversion is greatly shortened, and the pipe breaking operation can be completed under the condition that the process drainage capacity of sewage treatment and the like is not influenced.
Drawings
FIG. 1 is a schematic diagram of the structure of the connecting box of the present invention.
Fig. 2 is a top view of the junction box of the present invention.
Fig. 3 is a front view of the junction box of the present invention.
Fig. 4 is a right side view of the junction box of the present invention.
Wherein, the names corresponding to the reference numerals are:
1-a water tank foundation, 2-pre-buried steel, 3-a tank body, 31-a raw water pipe outlet, 32-a newly built water pipe outlet, 33-a manhole and 34-a reinforcing rib.
Detailed Description
The invention will be further illustrated by the following description and examples, which include but are not limited to the following examples.
The purpose of this embodiment is to provide a converging connection box and its installation and application process, as shown in fig. 1-4, the backflow connection box of this embodiment is designed to facilitate the diversion of the sewage discharge pipeline between sewage pretreatment, and this connection box can complete the pipe breaking operation under the condition that the water-stopping time does not affect the water-producing capacity of sewage treatment, thus being beneficial to improving the efficiency of pipeline diversion, saving time and not affecting the working efficiency of sewage treatment plants.
In this embodiment, the following sewage discharge conditions between pretreatment are taken as an example to describe the confluence connection box and the installation and application process thereof: the sewage flow direction in the original pipeline between pretreatment is from west to east, and the sewage flow direction in the new pipeline is from north to south, so that the pipe breaking operation can be completed quickly and conveniently, the new pipeline is paved, the new pipeline comprises a new north pipe section and a new south pipe section, the central heights of the original pipeline and the new pipeline are consistent at the pipe breaking operation position, and the pipe diameters of the original pipeline and the new pipeline are 1000mm.
Specifically, the connecting box is used as a connecting piece for a raw water pipe to be diverted to a newly-built water pipe, the whole connecting box is of a cuboid structure and comprises a water tank foundation 1, embedded steel 2 and a box body 3, the water tank foundation is made of C20 concrete with the height not lower than 200mm, the embedded steel 2 is 10# channel steel, the embedded steel 2 is four in total and is embedded and installed above the water tank foundation side by side, the length of the embedded steel is 2800mm, the interval between the adjacent embedded steel is 560mm, the channel steel opening serving as the embedded steel 2 faces to the lower side of the water tank foundation 1, the embedded steel is firmly embedded on the water tank foundation and is not easy to break away, the welding area of the embedded steel 2 and the box body 3 is also larger, and the box body and the embedded steel 2 can be more firmly.
The box body 3 is in a cuboid shape with the length of 2600mm, the width of 2500mm and the height of 2000mm, and is a carbon steel box body formed by welding a box body bottom plate, four box body side plates and a box body top plate, wherein the box body bottom plate is a whole carbon steel plate with the length of 2600mm and the width of 2500, and the box body bottom plate is welded above four embedded steels 2; the front side plate and the rear side plate of the box body are side plates where the inlet and the outlet of the new water pipe are positioned, the box body is made of a whole carbon steel plate with the length of 2600mm and the width of 2000mm, the rear side plate is provided with a new water pipe inlet, the front side plate is provided with a new water pipe outlet 32, the diameter of the new water pipe inlet is 1.0-1.1 times of the outer diameter of the new water pipe, so that the welding between the new water pipe and the new water pipe inlet can be stable, the diameter of the new water pipe outlet 32 is consistent with the diameter of the new water pipe inlet, and the box body front side plate and the box body rear side plate can be manufactured conveniently; the left side plate and the right side plate of the box body are side plates where the inlet and the outlet of the raw water pipe are positioned, and are respectively formed by welding 3 carbon steel splice plates with the length of 2600mm and the width of 650mm, and because welding seams exist between the splice plates, the left side plate and the right side plate of the box body are respectively provided with a raw water pipe inlet and a raw water pipe outlet 31, wherein the diameter of the raw water pipe inlet is 1.0-1.1 times of the outer diameter of the raw water pipe, and the diameter of the raw water pipe outlet 31 is consistent with the diameter of the raw water pipe inlet, so that the left side plate and the right side plate can smoothly sleeve the raw water into the raw water pipe inlet and the raw water pipe outlet, and the raw water pipe inlet and the raw water pipe outlet can be further sleeved; the top plate of the box body is provided with a manhole 33 with the diameter not smaller than 1m for people to enter and exit the box body, and the manhole 33 is provided with a matched blind plate.
In order to make its stability stronger, the pressure-bearing effect is better, four sides of box have encircleed outward and have set up two rings of 10# channel-section steel and have regarded as the strengthening rib, simultaneously, also transversely be equipped with two 10# channel-section steels respectively with vertically on the box roof and regard as the strengthening rib, and every strengthening rib both ends on the roof all extend to box side bottom along the box side downwardly.
Because the connection box of this embodiment can mostly set up underground, consequently, still be in box 3 surface has set up waterproof anticorrosive coating, just waterproof anticorrosive coating is including setting gradually the inner layer cold bottom oil layer, middle layer glass silk cloth anticorrosive coating and the outer cold bottom oil layer outside the box.
Since the raw water pipe needs to be cut off and the cut raw water pipe is not reused, the connecting box of the embodiment is also specially configured with a seal head to be welded matched with the raw water pipe inlet and the raw water pipe outlet 31.
The installation and application process of the connecting box comprises the following steps:
A. the design of the connecting box: preparing a carbon steel plate, a carbon steel seal head, 10# channel steel, C20 concrete and other connecting box mounting materials according to the size of the connecting box; the installation height of the tank foundation 1 is set based on the fact that the centers of the raw water pipe inlet and the raw water pipe outlet 31 are located on the middle splice plates on the front and rear plates of the tank body.
B. Connection box installation
(1) Digging a water tank foundation pit below a water-break diversion place, injecting C20 concrete into the water tank foundation pit until the water tank foundation height reaches 200mm, and embedding four 10# channel steels as embedded steel 2 above the water tank foundation pit;
(2) after the water tank foundation is shaped, welding a bottom plate of the tank body above the embedded steel;
(3) welding the side plates of the box body provided with the new water pipe inlet and the new water pipe outlet 32 to the rear side edge and the front side edge of the bottom plate of the box body respectively;
(4) the lower splice plate of the left side plate of the box body passes through the lower part of the raw water pipe, a groove on the lower splice plate is clamped with the raw water pipe, and then the lower end of the lower evaluation plate is welded with the bottom plate, and the two sides of the lower evaluation plate are welded with the front side plate and the rear side plate; then the middle splice plates of the left side plate are clamped at the front side and the rear side of the raw water pipe, the lower parts of the middle splice plates are welded with the upper parts of the lower splice plates, and the two sides of the middle splice plates are welded with the front side and the rear side plates; finally, covering the raw water pipe with the upper splice plate, welding the lower part of the upper splice plate with the upper part of the middle splice plate, and welding the two sides of the upper splice plate with the front side plate and the rear side plate; welding the right side plate of the box body by using the same method, and enabling the raw water pipe to pass through a raw water pipe outlet on the right side plate;
C. welding a newly-built water pipe: welding a valve at each of the ports of the new north pipe section and the new south pipe section at the water-break diversion site, and respectively welding the valve with the corresponding new water pipe inlet and new water pipe outlet 32 through a steel pipe consistent with the new pipe structure;
D. water cut-off
(1) Closing both valves on the newly built water pipe;
(2) opening a hole above a raw water pipe outside the connecting box, and pumping out sewage in the raw water pipe;
(3) after the liquid in the raw water pipe is drained, cutting off the raw water pipe section in the connecting box from the box body, and taking out the raw water pipe section from the upper part of the box body; then, the raw water pipe is respectively welded with the raw water pipe inlet and the raw water pipe outlet 31, and then a sealing head is respectively welded at the cutting part of the raw water pipe in the connecting box so as to seal the raw water pipe and the interface between the box body and the raw water pipe;
E. sealing the box: the top plate of the connecting box is welded with the tops of all the side plates of the connecting box, so that the box body is a closed box body without other outlets except the inlet and the outlet of the newly built water pipe.
F. Nondestructive detection of welding seams: after the box body is sealed, removing dirt on one side of a box body weld joint inspection, coating chalk powder slurry, airing, coating kerosene on the other side of the weld joint, and inspecting the chalk powder after 30 minutes, wherein no kerosene leakage spots exist on the chalk powder, and the weld joint inspection is qualified.
G. Waterproof and antiseptic: and (3) brushing a layer of cold primer oil on the outer surface of the box body, paving glass fiber cloth serving as an anti-corrosion layer by adopting a multilayer continuous paving method or a fish scale lapping method, and finally brushing a layer of cold primer oil outside the anti-corrosion layer. And finally, opening the valve to finish the water-break diversion operation.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or color changes made in the main design concept and spirit of the present invention are still consistent with the present invention, and all the technical problems to be solved are included in the scope of the present invention.
Claims (7)
1. A mounting and application process of a confluence connection box is characterized in that,
the connecting box is a connecting piece for redirecting the water interruption of the raw water pipe to a newly-built water pipe, and comprises a water tank foundation (1), a plurality of embedded steels (2) which are uniformly embedded above the water tank foundation side by side, and a box body (3) arranged on the embedded steels; the side surface of the box body is provided with a raw water pipe inlet and a raw water pipe outlet (31) corresponding to the raw water pipe, a new water pipe inlet and a new water pipe outlet (32) corresponding to the new water pipe, and a manhole (33) with the diameter not smaller than 1m is arranged at the top of the box body; the raw water pipe inlet and the raw water pipe outlet (31) are respectively provided with a corresponding seal head to be welded; a plurality of circles of reinforcing ribs (34) are uniformly and circumferentially arranged outside the side surface of the box body; the mounting and application process of the confluence connection box comprises the following steps:
A. the design of the connecting box: the connecting box comprises a box bottom plate, box side plates and a box top plate, a raw water pipe inlet and a raw water pipe outlet (31) are respectively formed in positions, corresponding to the raw water pipe, of the side surface of the connecting box body according to the pipe diameters of the raw water pipe and the newly-built water pipe, and the side plates where the raw water pipe inlet and the raw water pipe outlet are located are formed by welding transverse splice plates; a new water pipe inlet and a new water pipe outlet (32) are respectively formed in the positions, corresponding to the new water pipes, of the side surfaces of the connecting box body;
B. connection box installation
(1) Digging a water tank foundation pit below a new water pipe from which water is cut off and diverted, injecting C20 concrete into the water tank foundation pit, and embedding embedded steel (2) above the water tank foundation pit;
(2) after the water tank foundation is shaped, welding a bottom plate of the tank body above the embedded steel;
(3) welding a box body side plate provided with a new water pipe inlet and a new water pipe outlet (32) to the side edge of the box body bottom plate corresponding to the new water pipe;
(4) welding splice plates of side plates where the raw water pipe inlet and the raw water pipe outlet are positioned, enabling the raw water pipe to sequentially pass through the corresponding box body splice side plates from the raw water pipe inlet and the raw water pipe outlet (31), and then welding the splice side plates to the side edges of the box body bottom plate corresponding to the raw water pipe;
(5) directly welding the edges of adjacent box body side plates which are in contact with each other, welding adjacent box body side plates which are not in contact with each other through a connecting steel plate, and welding the bottom edges of the connecting steel plates with the bottom plate;
C. welding a newly-built water pipe: the newly built water pipe is divided into two sections, paved outside the newly built water pipe inlet and the newly built water pipe outlet (32) according to the requirement, and welded with a valve respectively, and welded with the corresponding newly built water pipe inlet and the corresponding newly built water pipe outlet (32) through steel pipes respectively;
D. water cut-off
(1) Closing both valves on the newly built water pipe;
(2) opening holes above the raw water pipe outside the connecting box, and extracting liquid in the raw water pipe;
(3) after the liquid in the raw water pipe is drained, cutting off the raw water pipe section in the connecting box from the box body, and taking out the raw water pipe section from the upper part of the box body; then, the raw water pipe is respectively welded with the raw water pipe inlet and the raw water pipe outlet (31), and then a seal head is respectively welded at the cutting position of the raw water pipe in the connecting box;
E. sealing the box: and welding the top plate of the connecting box with the tops of all the side plates of the connecting box and the connecting steel plate.
2. The process for installing and applying the confluence connection box according to claim 1, wherein after the box body is sealed, the non-destructive detection of the welding seam is further performed, and the method specifically comprises the following steps: after the box body is sealed, removing dirt on one side of a box body welding line inspection, coating chalk powder slurry, airing, coating kerosene on the other side of the welding line, and inspecting whether the chalk powder has kerosene leakage spots or not after 30 minutes.
3. The process for installing and applying the confluence connecting box according to claim 2, wherein after nondestructive detection of the weld of the box body, the box body is also waterproof and corrosion-resistant, and specifically comprises the following steps: and (3) coating a layer of cold primer oil on the outer surface of the box body, then adopting a multilayer continuous paving method to lay glass fiber cloth as an anti-corrosion layer, and finally coating a layer of cold primer oil on the anti-corrosion layer.
4. A process for installing and applying a header tank according to claim 3, characterized in that said manhole (33) is provided with a blind.
5. The mounting application process of the confluence connection box according to claim 4, wherein the water tank foundation (1) is a C20 concrete foundation with a height not less than 200 mm.
6. The mounting and application process of the busbar box as set forth in claim 5, wherein the embedded steel (2) and the reinforcing ribs (34) are 10# channel steel.
7. The process for installing and applying the confluence connection box according to claim 1, wherein the box body (3) is in a cuboid shape, a plurality of reinforcing ribs are arranged at the top of the box body, and two ends of each reinforcing rib extend downwards to the bottom of the side surface of the box body along the side surface of the box body.
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| CN201711215856.0A CN107830291B (en) | 2017-11-28 | 2017-11-28 | Converging connection box and mounting and application process thereof |
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| WO2020011239A1 (en) * | 2018-07-11 | 2020-01-16 | 杭州三花研究院有限公司 | Pipe connecting structure |
| CN115822097B (en) * | 2022-12-27 | 2023-10-03 | 广东建科建设咨询有限公司 | Assembled building pipeline embedded part and embedded method thereof |
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| CN100357652C (en) * | 2005-02-06 | 2007-12-26 | 北京兴远燃气实业公司 | Pipeline route changer and pipeline route changing method therewith |
| CN2802243Y (en) * | 2005-06-22 | 2006-08-02 | 宜兴市地埋供热管有限公司 | Underground heat insulation steam water well |
| CN105084543A (en) * | 2015-09-02 | 2015-11-25 | 重庆耐德机械设备有限公司 | Novel integrated wastewater treatment device and manufacturing technique thereof |
| CN205742343U (en) * | 2016-04-14 | 2016-11-30 | 苏州华控清源系统科技股份有限公司 | A kind of external reinforcement easy cleaning easy blowdown assembled assembled water tank |
| CN107246648A (en) * | 2017-07-18 | 2017-10-13 | 苏州灵均暖通科技有限公司 | A kind of split type sliceable fiberglass water collecting and diversifying device case and its manufacture method |
| CN207661280U (en) * | 2017-11-28 | 2018-07-27 | 成都市工业设备安装公司 | A kind of confluence connecting box |
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