CN204062329U - A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device - Google Patents
A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device Download PDFInfo
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- CN204062329U CN204062329U CN201420514324.2U CN201420514324U CN204062329U CN 204062329 U CN204062329 U CN 204062329U CN 201420514324 U CN201420514324 U CN 201420514324U CN 204062329 U CN204062329 U CN 204062329U
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- closure plate
- annular closure
- thermal insulation
- prefabricated direct
- polyurethane
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Abstract
A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device, belongs to prefabricated direct-buried thermal insulation pipe manufacturing mechanism technical field, carries out shutoff when foaming for prefabricated direct-buried thermal insulation pipe.Its technological scheme is: it comprises annular closure plate, excircle and the endoporus of annular closure plate match with the internal diameter of outer pillar, the external diameter of working steel tube respectively, annular closure plate is circumferentially fixed with the outlet pipe running through annular closure plate front/rear end, outlet pipe is provided with the floating ball ball valve regulating pressure.The utility model is provided with the floating ball ball valve regulating pressure on the outlet pipe of annular closure plate, the air pressure inside and outside cavity between working steel tube and outer pillar can be regulated, enable polyurethane combined material smooth outflow, ensure that polyurethane fully can foam in whole cavity, after polyurethane fully foams in cavity, the pressure of floating ball ball valve is regulated at any time according to foaming situation, polyurethane combined material is prevented to run off, avoid polyurethane foamed thermal-insulating layer to produce structural imperfection, can also cost of production be reduced simultaneously.
Description
Technical field
The plugging device that the utility model uses when relating to a kind of prefabricated direct-buried thermal insulation pipe foaming adopting sleeve pipe explained hereafter, belongs to prefabricated direct-buried thermal insulation pipe manufacturing mechanism technical field.
Background technique
Prefabricated direct-buried thermal insulation pipe is widely used in the transmission pipeline network of liquid, gas.The structure of prefabricated direct-buried thermal insulation pipe is made up of working steel tube and outer pillar, and outer pillar is PE material, filling heat insulating wall between working steel tube and outer pillar, and thermal insulation layer is foaming structure.The foaming process of prefabricated direct-buried thermal insulation pipe is: poling-preheating-upper pipe plug-pouring foaming-tear pipe plug-Checking of finished products open.Wherein pipe plug is steel material, there is poorly sealed problem in pipe plug and working steel tube and the outer pillar of PE, the poorly sealed problem measure of current solution adds cover seal ring on working steel tube external diameter, but after adding cover seal ring, cavity air pressure between working steel tube and the outer pillar of PE cannot be got rid of, and build polyurethane in cavity after, polyurethane combined material flowing is restricted, whole cavity cannot be full of, therefore cause polyurethane insulation coating to there is structural imperfection.In order to solve the problem regulating chamber pressure, artificial mode is often adopted to reach in the end boring of the outer pillar of PE the air discharged in cavity, regulate chamber pressure, ensure polyurethane insulation coating foaming fully, but adopt the mode of artificial boring then can cause the outer pillar structural failure of PE, there is the possibility of cavity water inlet.In order to solve the problem, China Patent No. CN 103062576 A discloses a kind of plugging device of foam heat-preservation pipe, and this blocking device serves good seal action, but cannot solve the problem regulating cavity internal pressure; China Patent No. CN 201844159 U discloses a kind of foaming blocking cover of polyurethane foaming heat insulating pipe, this blanking cover has the exhaust port of multiple through front/rear end, sealed groove is provided with inside blanking cover, there is the function of shutoff, exhaust, but due to the process that polyurethane foam process is a liquid curing, there is the problem of polyurethane by exhaust port " race material " in the process of solidification; Also have China Patent No. CN 203637080 U to disclose a kind of prefabricated direct-buried thermal insulation pipe high density polyurethane foam and strengthen mould, this fixture is in lid shape, clamp top has running-on, material feeding port and one group of exhaust port, this fixture is only suitable for for adopting accurate cutting equipment to cut the outer pillar of rear PE, application is very limited, and exhaust port is without blocking device, there is the problem of " running material ".In order to solve the problem, blocking device be improved, solve the problem such as sealing, adjustment pressure, " running material " simultaneously, being necessary to carry out brand-new design to blocking device.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of prefabricated direct-buried thermal insulation pipe foaming plugging device, this foaming plugging device can effectively solve the flowing of poorly sealed in prefabricated direct-buried thermal insulation pipe foaming process, premixed systems obstructed, run the problems such as material, the thermal insulation layer quality of raising prefabricated direct-buried thermal insulation pipe.
The technological scheme solved the problems of the technologies described above is:
A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device, it comprises annular closure plate, excircle and the endoporus of annular closure plate match with the internal diameter of outer pillar, the external diameter of working steel tube respectively, annular closure plate circumferentially has more than one exhaust port, its improvements are, be fixed with the outlet pipe running through annular closure plate front/rear end in exhaust port, outlet pipe is protruding in annular closure plate exterior edge face, and the outlet pipe stretched out is provided with the floating ball ball valve regulating pressure.
Above-mentioned prefabricated direct-buried thermal insulation pipe foaming plugging device, the outer peripheral surface of described annular closure plate is taper, and the exterior edge face cross-section area of annular closure plate is greater than interior edge face cross-section area.
Above-mentioned prefabricated direct-buried thermal insulation pipe foaming plugging device, the outer peripheral surface of described annular closure plate and endoporus circumferential surface are respectively installed with outer shroud flexible seal ring and the soft RunddichtringO of inner ring, and there is multiple tapped blind hole be evenly distributed the exterior edge face of annular closure plate.
The beneficial effects of the utility model are:
The utility model is provided with the floating ball ball valve regulating pressure on the outlet pipe of annular closure plate, the air pressure inside and outside cavity between working steel tube and outer pillar can be regulated, enable polyurethane combined material smooth outflow, ensure that polyurethane fully can foam in whole cavity; After polyurethane fully foams in cavity, regulate the pressure of floating ball ball valve according to foaming situation at any time, prevent polyurethane combined material to run off, the defective phenomenon of density of the polyurethane insulation coating that minimizing causes because of " running material "; Annular closure plate adopts cone structure and is set with soft RunddichtringO, and working steel tube and the outer pillar of PE can be made to reach better sealing effect.The utility model structure is simple, easy to use, sealing effect good, pressure can regulate, the working steel tube of thermal insulation pipe and the outer pillar of PE not only can be made to have reached hermetic effect, and polyurethane foamed thermal-insulating layer can be avoided to produce structural imperfection, can also cost of production be reduced simultaneously, be worth of widely use in the industry.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the schematic diagram of floating ball ball valve.
In figure, mark is as follows: the soft RunddichtringO 5 of annular closure plate 1, exhaust port 2, outlet pipe 3, floating ball ball valve 4, inner ring, outer shroud flexible seal ring 6, tapped blind hole 7, valve body 8, valve seat 9, valve ball 10, valve rod 11.
Embodiment
The utility model is made up of annular closure plate 1, outlet pipe 3, floating ball ball valve 4, the soft RunddichtringO 5 of inner ring, outer shroud flexible seal ring 6.
Show in figure, the excircle of annular closure plate 1 and endoporus match with the internal diameter of outer pillar, the external diameter of working steel tube respectively.In order to be inserted in outer pillar more easily, the outer peripheral surface of annular closure plate 1 is designed to taper, and the exterior edge face cross-section area of annular closure plate 1 is greater than interior edge face cross-section area.
Show in figure, annular closure plate 1 circumferentially has more than one exhaust port 2, be fixed with the outlet pipe 3 running through annular closure plate 1 front/rear end in exhaust port 2, outlet pipe 3 is protruding in annular closure plate 1 exterior edge face, and the outlet pipe 3 stretched out is provided with the floating ball ball valve 4 regulating pressure.In exhaust process, multiple exhaust port 2 can be vented simultaneously, when regulating pressure, except floating spherical ball valve 4 works, and all the other exhaust port 2 shutoff.
Show in figure, floating ball ball valve 4 is mainly used in the conveying of liquid medium, polyurethane exists by liquid state to solid-state conversion process in foaming process, release a large amount of heat in foaming process, and polyurethane self expands, cause cavity internal pressure to increase, at this moment floating ball ball valve 4 is used to carry out venting decompression and situation about expanding according to polyurethane, when polyurethane is full of cavity just, close floating ball ball valve 4, prevent polyurethane from " running material ".
Show in figure, floating ball ball valve 4 is made up of valve rod 11, valve ball 10, valve seat 9, valve body 8.In polyurethane foam process, operator observe polyurethane foam situation, and when polyurethane is full of inside cavity just, manual rotation valve rod 11 can prevent polyurethane from " running material ".
Show in figure, the outer peripheral surface of annular closure plate 1 and endoporus circumferential surface are respectively installed with outer shroud flexible seal ring 6 and the soft RunddichtringO 5 of inner ring, and flexible seal ring protrudes from the end face of annular closure plate 1 inner and outer rings.The gap that the soft RunddichtringO of inner ring 5 may exist for sealing annular closure plate 1 endoporus and working steel tube, outer shroud flexible seal ring 6 is for sealing the gap between annular closure plate 1 excircle and outer pillar, and outer shroud flexible seal ring 6 and the soft RunddichtringO 5 of inner ring ensure that the sealing of cavity.
Show in figure, there is multiple tapped blind hole 7 be evenly distributed the exterior edge face of annular closure plate 1, and uses screw rod annular closure plate 1 can be fixed on operating table by tapped blind hole 7.
Claims (3)
1. a prefabricated direct-buried thermal insulation pipe foaming plugging device, it comprises annular closure plate (1), excircle and the endoporus of annular closure plate (1) match with the internal diameter of outer pillar, the external diameter of working steel tube respectively, annular closure plate (1) circumferentially has more than one exhaust port (2), it is characterized in that: in exhaust port (2), be fixed with the outlet pipe (3) running through annular closure plate (1) front/rear end, outlet pipe (3) is protruding in annular closure plate (1) exterior edge face, and the outlet pipe (3) stretched out is provided with the floating ball ball valve (4) regulating pressure.
2. prefabricated direct-buried thermal insulation pipe foaming plugging device according to claim 1, is characterized in that: the outer peripheral surface of described annular closure plate (1) is taper, and the exterior edge face cross-section area of annular closure plate (1) is greater than interior edge face cross-section area.
3. prefabricated direct-buried thermal insulation pipe foaming plugging device according to claim 1 and 2, it is characterized in that: the outer peripheral surface of described annular closure plate (1) and endoporus circumferential surface are respectively installed with outer shroud flexible seal ring (6) and the soft RunddichtringO of inner ring (5), there is multiple tapped blind hole (7) be evenly distributed the exterior edge face of annular closure plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514324.2U CN204062329U (en) | 2014-09-09 | 2014-09-09 | A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514324.2U CN204062329U (en) | 2014-09-09 | 2014-09-09 | A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062329U true CN204062329U (en) | 2014-12-31 |
Family
ID=52203841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514324.2U Expired - Fee Related CN204062329U (en) | 2014-09-09 | 2014-09-09 | A kind of prefabricated direct-buried thermal insulation pipe foaming plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633376A (en) * | 2015-01-30 | 2015-05-20 | 唐山丰南君业节能保温材料有限公司 | Prefabricated direct-buried thermal insulating pipe foaming plugging device and usage method |
| CN105156768A (en) * | 2015-09-07 | 2015-12-16 | 唐山丰南君业节能保温材料有限公司 | Prefabricated overhead steam heat preservation pipeline and production technology |
-
2014
- 2014-09-09 CN CN201420514324.2U patent/CN204062329U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633376A (en) * | 2015-01-30 | 2015-05-20 | 唐山丰南君业节能保温材料有限公司 | Prefabricated direct-buried thermal insulating pipe foaming plugging device and usage method |
| CN105156768A (en) * | 2015-09-07 | 2015-12-16 | 唐山丰南君业节能保温材料有限公司 | Prefabricated overhead steam heat preservation pipeline and production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Prefabricated direct-buried thermal insulating pipe foaming plugging device and usage method Effective date of registration: 20150911 Granted publication date: 20141231 Pledgee: Bank of Hebei Limited by Share Ltd. Tangshan Fenghuang New Town Branch Pledgor: TANGSHAN FENGNAN JUNYE ENERGY SAVING PRESERVATION MATERIAL Co.,Ltd. Registration number: 2015990000781 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161027 Granted publication date: 20141231 Pledgee: Bank of Hebei Limited by Share Ltd. Tangshan Fenghuang New Town Branch Pledgor: TANGSHAN FENGNAN JUNYE ENERGY SAVING PRESERVATION MATERIAL Co.,Ltd. Registration number: 2015990000781 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063300 coastal industrial zone, Fengnan District, Hebei, Tangshan City Patentee after: HEBEI JY TECHNOLOGY CO.,LTD. Address before: 063300 coastal industrial zone, Fengnan District, Hebei, Tangshan City Patentee before: TANGSHAN FENGNAN JUNYE ENERGY SAVING PRESERVATION MATERIAL Co.,Ltd. |
|
| 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: 20141231 Termination date: 20210909 |