CN102758990A - Quick pipeline quick leakage stopper and processing and forming method thereof - Google Patents
Quick pipeline quick leakage stopper and processing and forming method thereof Download PDFInfo
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- CN102758990A CN102758990A CN2012102597272A CN201210259727A CN102758990A CN 102758990 A CN102758990 A CN 102758990A CN 2012102597272 A CN2012102597272 A CN 2012102597272A CN 201210259727 A CN201210259727 A CN 201210259727A CN 102758990 A CN102758990 A CN 102758990A
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Abstract
The invention relates to a quick pipeline leakage stopper and a processing and forming method of the quick pipeline leakage stopper. A housing of the leakage stopper is manufactured through fiber reinforced resin by utilizing one of the methods of wet forming, resin transfer molding, vacuum forming, compression molding and jet molding; the cross section of a sealing strip in a rubber sealing component has the characteristics of being wide in upper part and narrow in lower part, wherein the wide side has a relatively large contact area during pressing two half housings in an opposite way, and therefore, relatively great rubbing sealing force is produced; the narrow side is beneficial for positioning the sealing strip in a flange surface at the side edge of the housing, as well as saving rubber materials. The quick pipeline leakage stopper is advantaged by integrating the advantages of the current cast iron leak stopper which has high strength, and the plastic leakage stopper which has light weight and corrosion resistance; and the quick pipeline leakage stopper has a wide application range, and achieves a relatively great sealing effect under the condition that the consumption of the rubber materials is reduced.
Description
Technical field
The present invention relates to a kind of rapid pipeline leak stopping device, and adopt fiber-reinforced resin to make the processing molding method of this leak stopping device.
Background technique
Pipeline and Human's production are closely bound up with life.Almost each city all establishes dotted tap water supply and sewage vent line system; City big or middle also has perfect coal gas/rock gas and heating conveying tube road system; In addition; The industrial piping system of oneself is also had in most of factory, is used to carry various liquid or gas medium to comprise Korrosionsmedium.
Any one pipe-line system all might be leaked at its duration of work.In case especially city supply water pipeline occur to leak, people always expect in the very first time, rush to repair and finish and not interrupt pipe water supply from start to finish.Rapid pipeline leak stopping device claims that again the Hough joint carries out quick, permanent shutoff with regard to being used for to the pipeline of leak, and it is made up of stiff case and elastomer seal.Stiff case is coated on as a joint bassoon that is divided into two and the pipeline outside of leaking occurs and be fixed on two different mouth of pipe cross sections; Through bolt the two halves housing is locked; Elastomer seal is then realized the sealing to two halves housing interface and mouth of pipe cross section; The leak stopping device mainly is that the elastic restoring force by mouth of pipe cross-section elasticities seal ring is implemented in fixing on the pipeline, reaches the purpose of quick and permanent leak stopping.
Because structural type is comparatively complicated, the housing of existing rapid pipeline leak stopping device is perhaps made by cast iron, perhaps by plastic processing, all is to be cast in raw material fusing back to form in mould in essence.These two kinds of leak stopping device housings respectively have its strong point with not enough.The strong point of cast iron leak stopping device housing is: mechanical property is good, generally can satisfy the requirement of conventional aqueduct to intensity, but proportion is high; Heavy, easy-to-rust is because the onsite moving of leak stopping device generally all is to lean on artificial the completion with installing; The labor intensity of the cast iron leak stopping device site operation of heavy especially large diameter pipeline is big; Cause the manpower payoff cost high, in addition, ironcasting is prone to get rusty, corrosion-prone characteristics; Also can produce secondary pollution in the shutoff that is used for water supply pipe, powerless especially to the shutoff of carrying the aggressive medium chemical pipeline.Plastics leak stopping device then with the character of cast iron leak stopping device antithesis, though proportion is little, in light weight, non-corrosive, the general corrosion of ability, intensity is low, bearing capacity is not enough, only on small-bore pipeline, substitutes a cast iron leak stopping device usually and uses.
Another critical component of leak stopping device is a Sealing; It is made up of two-part; Be Stamping Steel Ribbon and seal ring, wherein Stamping Steel Ribbon is placed in the counterpart cross section of two halves leak stopping device housing, is used to seal the side interface of two halves housing; Seal ring then is placed in mouth of pipe cross section, is used to realize leak stopping and the fixation that Hough is saved.In view of municipal not only all bigger with the machining tolerance of pipeline especially concrete duct; And use throughout the year can cause transducer wall ' s abrasion, corrosion, appearance deposition etc. to cause that size further changes; Be the external diameter difference of compensation pipeline, the sectional dimension of Sealing is often all bigger.Present Stamping Steel Ribbon such as is generally at the rectangular cross section of width, and the part in the depth of section must sink in the groove of housing side flanged surface.This deficiency that waits width rectangular cross-section Stamping Steel Ribbon to have two aspects; At first; The side seals of leak stopping device the realizing of upper-lower seal bar that place one's entire reliance upon to pressing, therefore, the width of rectangular cross-section is big more; The sealing force of side is big more, but strengthens cost and the width that adds big groove that width certainly will increase Stamping Steel Ribbon.In addition, the rectangular seal bar sinks to groove makes its broad ways that more mobile space arranged, and is difficult for centering when causing the upper-lower seal bar to pressure, has further weakened the sealing force of side.
Market presses for a kind of novel rapid pipeline leak stopping device housing; Can be comprehensively the strong point of cast iron and two kinds of leak stopping devices of plastics at present; And can eliminate both weakness, need also simultaneously that sealability is stronger, better, the materials consumption rubber seal still less of sealing effect.
Summary of the invention
One of technical problem to be solved by this invention is to provide a kind of novel rapid pipeline leak stopping device housing; Have the intensity height of cast-iron pipe leak stopping device housing and the good advantage of in light weight and rust resistance of plastic pipe leak stopping device housing, also overcome their deficiencies separately simultaneously.
Two of technical problem to be solved by this invention is to provide a kind of novel rubber seal structure, and it is stronger to have sealability, and sealing effect is better, does not increase rubber material consumption simultaneously.
Another technical problem to be solved by this invention is to provide the processing molding method of above-mentioned rapid pipeline leak stopping device housing.
The present invention solves the problems of the technologies described above the technological scheme of being taked: a kind of rapid pipeline leak stopping device; Constitute by housing that is separated into two halves and rubber seal; Wherein Sealing is made up of Stamping Steel Ribbon and seal ring; Bolt passes and forms the pore that runs through after housing side flange couples together the two halves housing; Stamping Steel Ribbon places on the flanged surface of housing side, and seal ring then is arranged in the inboard of pore, the leak stopping device is fixed on two different mouths of pipe cross sections of pipe leakage point front and back through the mode of compresses seal; It is characterized in that: the two halves housing of leak stopping device is processed by fiber-reinforced resin, and the cross section of rubber weather strip is the non-wide cross section that the first half is wide, Lower Half is narrow.
On the basis of such scheme, the side flange of leak stopping device housing is the step surface that the inboard is low, the outside is high, and is as shown in Figure 1.
On the basis of such scheme, the cross section of rubber weather strip is a kind of in right angle type, T font or three kinds of cross sections of perching knife shape, respectively shown in Fig. 2, Fig. 3 or Fig. 4 a.Notice that the first half of right angle type, T font or perching knife shape is wide can be right angle transition, chamfering transition or other any geometric transition form shown in Fig. 4 b or Fig. 4 c to the narrow transition of Lower Half.If adopt the right angle type cross section, then the back side of rubber weather strip is inboard high, the low step surface in the outside, referring to Fig. 5.If adopt a kind of T of being font or perching knife shape Stamping Steel Ribbon cross section in back two kinds of cross sections, so, should have groove on the side flanged surface of housing, lay the vertical bar of T font or the narrow limit of perching knife shape.
On the basis of such scheme; The surface Machining of said rubber seal sliver transvers section first half broadside becomes rough and uneven in surface; Like zigzag fashion or waveform; Fig. 6 a, Fig. 6 b or Fig. 6 c have only provided the shape of cross section schematic representation of three kinds of rough and uneven in surface Stamping Steel Ribbons in surface, and other any non-flat surface configuration of facing directly is all in protection scope of the present invention.Skin friction when the effect on this rough and uneven in surface surface is to increase by two Stamping Steel Ribbons to pressure.
On the basis of such scheme, the housing of said leak stopping device adopts one of following five kinds of methods or the preparation of the combined method between them:
A, wet moulding: be processed with a punch or a die in advance; Wherein the outer surface of punch is identical with the inner surface configuration of housing to be formed, and the internal surface of the die then external surface shape with housing to be formed is identical, the fibre cloth of soaking into resin successively is coated on the outer surface of punch; The fibre cloth that perhaps will soak into resin is successively spread the internal surface that overlays on die; Also can be on punch or die inner edge shop cover fiber selvedge brushing resin, reach the design number of plies after, solidify under the middle temperature of normal temperature or 50 ℃-500 ℃; Obtain the housing semi-finished product after the demoulding, carry out necessary machining again and obtain;
B, resin transfer molding: process a pair of protruding, die in advance; Each other gap constitutes the geometrical construction size of housing behind both matched moulds, with the dried fibre cloth of impregnation not by designing requirement successively be laid in the punch outer surface, the die that closes, perhaps be laid in the die internal surface, punch closes; Locked mode and in fiber injecting resin make the fiber impregnation; Solidify under the middle temperature of normal temperature or 50 ℃-500 ℃, the demoulding obtains the housing semi-finished product, carries out necessary machining again and obtains; Note, reach following said impregnation here and be meant the infiltration resin;
C, vacuum suction moulding: be processed with a punch or a die in advance, wherein the outer surface of punch is identical with the inner surface configuration of housing to be formed, and the internal surface of the die then external surface shape with housing to be formed is identical; The dried fibre cloth of impregnation not successively is coated on the outer surface of punch; Perhaps will do fibre cloth and successively spread the internal surface that overlays on die, again soft sealing film cloth will be coated on the punch that is equipped with fiber or the outside of die, and adopt vacuum pump to take out the air in the fiber; Make sealing film cloth tightly paste the outer surface of clothes at fiber; Open material feeding mouth, rely on pull of vacuum that resin is sucked and make its impregnation in the fiber, solidify under the middle temperature of normal temperature or 50 ℃-500 ℃; The demoulding obtains the housing semi-finished product, carries out necessary machining again and obtains;
D, compression molding: process a pair of protruding, die in advance; Each other gap constitutes the geometrical construction size of housing behind both matched moulds; Lay molding material or prepreg and make mould remain on 50 ℃-500 ℃ middle temperature state in die; Through the extruding between punch and the die, hot melt, process the semi-finished product of housing by molding material or prepreg, carry out necessary machining again and obtain;
E, injection molding: process a pair of protruding, die in advance; Die cavity behind both matched moulds constitutes the geometrical construction size of housing and leaves material feeding mouth and exhaust port; The mixture of fiber and resin is pushed through in the die cavity through material feeding mouth; Behind the intermediate temperature setting of room temperature or 50 ℃-500 ℃, depanning is the semi-finished product of housing, carries out necessary machining again and obtains.
On the basis of such scheme; Described molding material comprises a kind of among sheet molding compound SMC (sheet molding compound), BMC BMC (bulk molding compound) or the DMC (dough molding compound) that is mixed by fiber, resin and filler or their assemblying body, and described prepreg is to be soaked in advance and the dry product of crossing through resin by fiber.
On the basis of such scheme, described fiber or fibre cloth comprise glass fibre, graphite fiber, basalt fibre, silicon carbide fiber, aramid fibre, superhigh molecular weight polyethylene fibers, cotton fibriia, reed fiber or by one or more or the compound body between them in the cloth that these fibers were woven into.
On the basis of such scheme, described resin comprises one or more in epoxy resin, unsaturated resin, the phenolic resin.
The step surface of instantaneous leaking-stopping shell flange of the present invention is perhaps obtained by the direct machine shaping of aforementioned shaping die, and perhaps further machining obtains after making the housing semi-finished product.
The invention has the beneficial effects as follows:
1, leak-stopping device case weight is light, intensity is high, non-corrosive, corrosion-resistant, is reinforcing material if adopt modal glass fibre, and then the proportion of galss fiber reinforced resin is merely 1.8kg/cm
3About, and the proportion of cast iron is 7.8kg/cm
3, both differ 4.33 times, and therefore, the leak-stopping device of same size has only 1/3 of traditional cast iron leak stopping amount of thinking highly of.This will help the site operation of leak stopping device greatly, and can be applicable to the quick blocking behind other purposes pipe leakage except that water supply, air feed.
2, the Stamping Steel Ribbon cross section top of leak-stopping device is wideer, thereby when two halves leak stopping device housing can produce bigger frictional force when pressing, the cross section bottom of Stamping Steel Ribbon is narrow, not only can reduce rubber material consumption, and more convenient location.It is more convenient and effective that above-mentioned two invention The Application of Technology will make that rapid plugging device uses.
Description of drawings
Fig. 1 is a leak stopping device housing side flange step surface photo of the present invention.
Fig. 2 is a right angle type Stamping Steel Ribbon cross sectional representation of the present invention.
Fig. 3 is a T font Stamping Steel Ribbon cross sectional representation of the present invention.
Fig. 4 a is a perching knife shape Stamping Steel Ribbon cross sectional representation of the present invention.
Fig. 4 b is another perching knife shape Stamping Steel Ribbon cross sectional representation of the present invention.
Fig. 4 c is another perching knife shape Stamping Steel Ribbon cross sectional representation of the present invention.
Fig. 5 is the step surface photo at the Stamping Steel Ribbon of the present invention back side.
Fig. 6 a is surperficial a kind of rough and uneven in surface structural representation of Stamping Steel Ribbon cross section broadside of the present invention.
Fig. 6 b is another rough and uneven in surface structural representation of surface of Stamping Steel Ribbon cross section broadside of the present invention.
Fig. 6 c is another rough and uneven in surface structural representation of surface of Stamping Steel Ribbon cross section broadside of the present invention.
Fig. 7 a is for adopting half housing photo of fiber-reinforced resin rapid plugging device of the present invention's technology preparation
Fig. 7 b is for adopting the fiber-reinforced resin rapid plugging device photo of the present invention's technology preparation
Label declaration in the accompanying drawing
The inner side surface of 1-leak stopping device housing side flange step surface 1 '-leak stopping device housing side flange
1 "-outer side surface of leak stopping device housing side flange
The inner side edge at step surface 5 '-Stamping Steel Ribbon back side, the 5-Stamping Steel Ribbon back side
5 "-outer side at the Stamping Steel Ribbon back side
Embodiment
Embodiment 1
Cement pipe still is one of main pipeline of the present numerous town water supplies of China.The socket joint mode is mainly adopted in being connected between concrete duct and the pipeline; The tail end outer surface of managing the last period inserts in the front end of back one section pipe after putting seal ring; The seal ring at socket joint place be the most damaged, produce one of position of leaking, the leak stopping device that is used for carrying out at this position quick blocking is called cement pipe mouthing Hough joint.
According to the NBS of DN300 cement pipe bellmouth joint, make its basic boundary dimension, again according to design experiences, behind the amplification certain proportion, confirm the Inner Dimension of cement pipe bellmouth DN300 leak stopping device housing.
The side flange thickness is undertaken by the flange design standard of DN300, and the tensile property of material property The data galss fiber reinforced resin wherein obtains after divided by safety coefficient, and design pressure is 1.6MPa, and the thickness of leak stopping device housing is obtained by same standard design.Seal ring can only be designed to circle, and its thickness is chosen mainly rule of thumb value with height, wherein thickness be approximately highly 80%.The Stamping Steel Ribbon cross section is chosen for right angle type, and promptly the Stamping Steel Ribbon back side is stepped, and the side flange of leak stopping device housing also is stepped, and shoulder height is taken as 4mm.The wide 12mm in the bottom of Stamping Steel Ribbon, the wide 17mm in top.
Difference seal element machining mould and leak stopping device casing female mould, wherein seal mold is used for the rubber curing forming of Sealing, and the shop covers the required continuous glass fibre cloth of meter in casing female mould; Cut off the fibre cloth at metal plug place and lay after the metal plug overcoat, arrange the resin honeycomb duct, be coated on the outer surface of die again with the PVC plastic film at the outer surface of fibre cloth; Periphery adopts the two sided plaster sealing, and the highs and lows place of plastic film leaves exhaust port and material feeding mouth respectively, closes material feeding mouth; Take out intrastitial to the greatest extent air from exhaust port, open material feeding mouth, low viscous vinylite is sucked in the fiber its impregnation from material feeding mouth; Observe and close material feeding mouth and air outlet hole simultaneously after all fibres is soaked into fully when resin flows out and sees through the PVC film from exhaust port, solidify after 4 hours under the room temperature, open the PVC film; Remove honeycomb duct; Leak stopping device housing after solidifying and die are thrown off, pare off unnecessary burr, the step surface of side flange is by the mould straight forming.At last, auger shell keyhole on flanged surface, surface brush paint.Made leak stopping device photo is seen Fig. 7.
Embodiment 2
Same to DN300 cement pipe bellmouth leak stopping device, its housing adopts the preparation of compression molding processing method.
The material property data that obtain after divided by safety coefficient based on the tensile property of moulded glass fiber-reinforced resin material; Design DN300 cement pipe bellmouth leak stopping device shell dimension; Protruding, the die of Design and Machining metal again; Die cavity space behind both matched moulds is the shell construction size of leak stopping device, and metal is protruding, embedding respectively in the die electric heating tube arranged, and is used for mold heated.Die is fixed on the base of 1000 tons of press, and punch then is fixed on the mobile platen of this press, through moving down the press platen, punch is cooperated with die.At first, heat up behind closed protruding, the die, make the temperature in the die cavity reach 150 ℃; Then; On move punch and in die, throw in the alkyd resin based BMC of q.s, move down punch again, keeping heats makes temperature stabilization in the die cavity after 150 ℃; Progressively punch is pressed to die, pressurize was not less than 10 minutes under the pressure of the highest 25MPa.Then, on move punch, adopt the backform device that leak stopping device housing is ejected from die, pare off unnecessary burr, the step surface of side flange is by the direct compression moulding of mould, the boss place processing hole slot of reserving at the housing middle part and the overcoat of fixing metal plug.At last, auger shell keyhole on flanged surface is accomplished the processing of leak stopping device housing.
Embodiment 3
Same to DN300 cement pipe bellmouth leak stopping device, its housing adopts the preparation of injection molding processing method.
Modulus and intensity based on chopped firbre reinforced composite; Design the shell dimension of DN300 cement pipe bellmouth leak stopping device, further protruding, the die of Design and Machining metal, the die cavity space behind both matched moulds is the shell construction size of leak stopping device; At the proper site setting of mould and the material feeding mouth and the air outlet hole of die cavity UNICOM; And in die, settle the overcoat of metal plug, the discharge port connection with material feeding mouth with the screw-type extruder of die cavity is provided with the flow of cooling water passage in the mould.Short glass fiber and nylon pellet are mixed the feeding warehouse that screw extruder is dropped in the back by the weight ratio (being that the short-and-medium fibre weight ratio of cutting of mixture is not less than 20%) that is not less than 20%, and wherein about length of staple 5mm, feeding warehouse is provided with heating equipment; After under constantly stirring, making nylon pellet hot melt; Open door, the fiber and the resin mixture of liquid state is pushed through discharge port, get into the material feeding mouth of die cavity and press full die cavity through the screw rod rotary pushing device; Close the material feeding mouth of die cavity; After insulation a period of time, open the water inlet switch of cooling water, make the liquid material cooling curing in the die cavity.Then, the demoulding, taking-up leak stopping device housing pare off unnecessary burr, and the groove of side flange is by the mould straight forming.At last, auger shell keyhole on flanged surface is accomplished the processing of leak stopping device housing.The Stamping Steel Ribbon cross section that matees with this leak stopping device housing is a perching knife type shown in Fig. 4 a, and the width of groove equates with the top hem width of perching knife type.
Claims (8)
1. rapid pipeline leak stopping device; Constitute by housing that is separated into two halves and rubber seal; Wherein Sealing is made up of Stamping Steel Ribbon and seal ring, and bolt passes and forms the pore that runs through after housing side flange couples together the two halves housing, and Stamping Steel Ribbon places on the flanged surface of housing side; Seal ring then is arranged in the inboard of pore; Mode through compresses seal is fixed on two different mouths of pipe cross sections before and after the pipe leakage point with the leak stopping device, and it is characterized in that: the two halves housing of leak stopping device is processed by fiber-reinforced resin, and the cross section of rubber weather strip is the non-wide cross section that the first half is wide, Lower Half is narrow.
2. rapid pipeline leak stopping device according to claim 1 is characterized in that: the step surface that the side flange of housing is low for the inboard, the outside is high.
3. according to claim 1 and the described rapid pipeline leak stopping of claim 2 device, it is characterized in that: described housing adopts one of following five kinds of methods or the combined preparation between them:
A, wet moulding: be processed with a punch or a die in advance; Wherein the outer surface of punch is identical with the inner surface configuration of housing to be formed, and the internal surface of the die then external surface shape with housing to be formed is identical, the fibre cloth of soaking into resin successively is coated on the outer surface of punch; The fibre cloth that perhaps will soak into resin is successively spread the internal surface that overlays on die; Also can be on punch or die inner edge shop cover fiber selvedge brushing resin, reach the design number of plies after, solidify under the middle temperature of normal temperature or 50 ℃-500 ℃; Obtain the housing semi-finished product after the demoulding, carry out necessary machining again and obtain;
B, resin transfer molding: process a pair of protruding, die in advance; Each other gap constitutes the geometrical construction size of housing behind both matched moulds, with the dried fibre cloth of impregnation not by designing requirement successively be laid in the punch outer surface, the die that closes, perhaps be laid in the die internal surface, punch closes; Locked mode and in fiber injecting resin make the fiber impregnation; Solidify under the middle temperature of normal temperature or 50 ℃-500 ℃, the demoulding obtains the housing semi-finished product, carries out necessary machining again and obtains;
C, vacuum suction moulding: be processed with a punch or a die in advance, wherein the outer surface of punch is identical with the inner surface configuration of housing to be formed, and the internal surface of the die then external surface shape with housing to be formed is identical; The dried fibre cloth of impregnation not successively is coated on the outer surface of punch; Perhaps will do fibre cloth and successively spread the internal surface that overlays on die, again soft sealing film cloth will be coated on the punch that is equipped with fiber or the outside of die, and adopt vacuum pump to take out the air in the fiber; Make sealing film cloth tightly paste the outer surface of clothes at fiber; Open material feeding mouth, rely on pull of vacuum that resin is sucked and make its impregnation in the fiber, solidify under the middle temperature of normal temperature or 50 ℃-500 ℃; The demoulding obtains the housing semi-finished product, carries out necessary machining again and obtains;
D, compression molding: process a pair of protruding, die in advance; Each other gap constitutes the geometrical construction size of housing behind both matched moulds; Lay molding material or prepreg and make mould remain on 50 ℃-500 ℃ middle temperature state in die; Through the extruding between punch and the die, hot melt, process the semi-finished product of housing by molding material or prepreg, carry out necessary machining again and obtain;
E, injection molding: process a pair of protruding, die in advance; Die cavity behind both matched moulds constitutes the geometrical construction size of housing and leaves material feeding mouth and exhaust port; The mixture of fiber and resin is pushed through in the die cavity through material feeding mouth; Behind the intermediate temperature setting of room temperature or 50 ℃-500 ℃, depanning is the semi-finished product of housing, carries out necessary machining again and obtains.
4. rapid pipeline leak stopping device according to claim 3 is characterized in that: described molding material comprises a kind of among sheet molding compound SMC, BMC BMC or the DMC that is mixed by fiber, resin and filler or their assemblying body.
5. rapid pipeline leak stopping device according to claim 3 is characterized in that: described prepreg is to be soaked in advance and the dry product of crossing through resin by fiber.
6. according to the described rapid pipeline leak stopping of claim 1 to claim 5 device; It is characterized in that: described fiber or fibre cloth comprise glass fibre, graphite fiber, basalt fibre, silicon carbide fiber, aramid fibre, superhigh molecular weight polyethylene fibers, cotton fibriia, reed fiber or by one or more or the compound body between them in the cloth that these fibers were woven into, described resin comprises one or more in epoxy resin, unsaturated resin, the phenolic resin.
7. rapid pipeline leak stopping device according to claim 1 is characterized in that: the cross section of said rubber weather strip is a kind of in right angle type, T font or the perching knife shape.
8. according to claim 1 and the described rapid pipeline leak stopping of claim 7 device, it is characterized in that: the surface Machining of said rubber seal sliver transvers section first half broadside becomes rough and uneven in surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102597272A CN102758990A (en) | 2012-07-25 | 2012-07-25 | Quick pipeline quick leakage stopper and processing and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102597272A CN102758990A (en) | 2012-07-25 | 2012-07-25 | Quick pipeline quick leakage stopper and processing and forming method thereof |
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| Publication Number | Publication Date |
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| CN102758990A true CN102758990A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102597272A Pending CN102758990A (en) | 2012-07-25 | 2012-07-25 | Quick pipeline quick leakage stopper and processing and forming method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260092A (en) * | 2019-07-25 | 2019-09-20 | 安徽同发设备股份有限公司 | Pipeline leakage plugging device |
| CN112372250A (en) * | 2020-11-16 | 2021-02-19 | 广东理标信息科技有限公司 | Processing method of strong magnetic plugging device |
| CN114233975A (en) * | 2021-12-27 | 2022-03-25 | 国家石油天然气管网集团有限公司 | SMC (sheet molding compound) for repairing long-distance oil and gas pipeline and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080017263A1 (en) * | 2004-12-03 | 2008-01-24 | Robinson David P | System and method for pipe repair |
| CN201090898Y (en) * | 2007-06-16 | 2008-07-23 | 赵衍芝 | Piping leakage complementing component |
| CN101749514A (en) * | 2010-01-30 | 2010-06-23 | 安徽同发设备股份有限公司 | Sealing rings of Hafu joint |
| CN101749511A (en) * | 2010-01-30 | 2010-06-23 | 安徽同发设备股份有限公司 | Hafu joint |
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2012
- 2012-07-25 CN CN2012102597272A patent/CN102758990A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080017263A1 (en) * | 2004-12-03 | 2008-01-24 | Robinson David P | System and method for pipe repair |
| CN201090898Y (en) * | 2007-06-16 | 2008-07-23 | 赵衍芝 | Piping leakage complementing component |
| CN101749514A (en) * | 2010-01-30 | 2010-06-23 | 安徽同发设备股份有限公司 | Sealing rings of Hafu joint |
| CN101749511A (en) * | 2010-01-30 | 2010-06-23 | 安徽同发设备股份有限公司 | Hafu joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260092A (en) * | 2019-07-25 | 2019-09-20 | 安徽同发设备股份有限公司 | Pipeline leakage plugging device |
| CN112372250A (en) * | 2020-11-16 | 2021-02-19 | 广东理标信息科技有限公司 | Processing method of strong magnetic plugging device |
| CN114233975A (en) * | 2021-12-27 | 2022-03-25 | 国家石油天然气管网集团有限公司 | SMC (sheet molding compound) for repairing long-distance oil and gas pipeline and construction method |
| CN114233975B (en) * | 2021-12-27 | 2023-12-29 | 国家石油天然气管网集团有限公司 | SMC for repairing long oil and gas pipeline and construction method |
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Application publication date: 20121031 |