CN203671121U - Connecting device and pipeline component assembly of plastic pipeline and flushing pipeline of mist eliminator - Google Patents
Connecting device and pipeline component assembly of plastic pipeline and flushing pipeline of mist eliminator Download PDFInfo
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- CN203671121U CN203671121U CN201320650996.1U CN201320650996U CN203671121U CN 203671121 U CN203671121 U CN 203671121U CN 201320650996 U CN201320650996 U CN 201320650996U CN 203671121 U CN203671121 U CN 203671121U
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- bead
- pipe end
- pipe
- connection set
- plastic
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- 239000004033 plastic Substances 0.000 title claims abstract description 122
- 229920003023 plastic Polymers 0.000 title claims abstract description 122
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 12
- 239000003595 mist Substances 0.000 title abstract 2
- 239000011324 bead Substances 0.000 claims description 295
- 238000010030 laminating Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 20
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 239000012943 hotmelt Substances 0.000 description 11
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- 238000013461 design Methods 0.000 description 8
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- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
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- 238000005260 corrosion Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
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- 230000003292 diminished effect Effects 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
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- 238000005485 electric heating Methods 0.000 description 1
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- 239000008041 oiling agent Substances 0.000 description 1
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Images
Classifications
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/14—Flanged joints
Abstract
The utility model discloses a connecting device and a pipeline component assembly of a plastic pipeline and a flushing pipeline of a mist eliminator. The connecting device of the plastic pipeline comprises a first pipe end connected with a first pipeline, a second pipe end connected with a second pipeline and a pipe end fastening component for fastening the first pipe end and the second pipe end. According to the connecting device of the plastic pipeline, when the pipe end fastening component is used for fastening the first pipe end and the second pipe end, the fastening component exerts the first acting force on the first pipe end, the fastening component exerts the second acting force on the second pipe end, the first pipe end and the second pipe end are directly or indirectly tightly attached to each other through the first acting force and the second acting force, therefore, a sealing gasket between the first pipe end head and the second pipe end head can be extruded, and the sealing aim is achieved. According to the connecting device, the technical problems that the hot melting mode exists in the plastic pipeline connection, repeated use is not facilitated, the flange connection cost is high, and the efficiency is low are effectively solved, and the connecting device can be widely applied in the plastic pipeline connecting field.
Description
Technical field
The utility model relates to pipeline connection technology field, relates in particular to a kind of flushing pipe of connection set, conduit component set and demister of plastic pipe.
Background technique
Plastic pipe is widely used in the aspects such as plumbing, pressurized air, chemical pipeline, oil-piping, grouting pipeline, rinse-system, spray system, apply more and more wider, to plastic pipe connect and sealing requirement more and more stricter and diversified.In prior art, the Placement of plastic pipe mainly contains following several: hot melt connection, groove connection, flange connection etc.Hot melt connects, and carries out hot melt by the connecting end of plastic pipe to be connected, as plastic pipe to be connected carried out to hot melt by electric heating panel, then under certain pressure, makes the bonding Placement of plastic pipe to be connected; It is after welding that hot melt connects major defect, and the plastic pipe of connection is not easy to dismounting, cannot repeat dismounting and use, and causes pipeline waste; Simultaneously, the professional welding equipment that hot melt connects carries inconvenience, be not suitable for connecting in erecting bed, and this welding procedure depends on operator's level of operation, the difference of different operating personnel operative skill is difficult to guarantee quality of connection, causes the sweat soldering difficult quality control of erecting bed.Groove connects, and connects by the connecting end cutting of plastic pipe to be connected; The major defect that groove connects is processed groove on pipeline can produce considerable influence to the bearing capacity of tubing.Flange connects, plastic pipe to be connected is connected with bolt by flange, the major defect that flange connects is that step is comparatively loaded down with trivial details aspect installation, dismounting, pipeline maintenance, required operating space is installed also larger, operating efficiency is lower, does not meet pipeline and connects rapid assembling and the demand being connected fast; Meanwhile, this Placement depends on operator's level of operation, connects effect wayward; And, plastic pipe is due to corrosion-resistant, be widely used under the operating mode of corrosion, in fume desulfurating absorption tower such as power station or chemical plant, connecting bolt need to adopt stainless steel bolt or alloy bolt in this case, its cost is very high, is unfavorable for the application popularization of plastic pipe under corrosive environment.
In utility model patent CN202946826U " hard plastic pipe connection set ", mention a kind of plastic pipe connection set, rubber seal is the outer ring that is enclosed within plastic joint body, and its sealing principle is to be fastened under the effect of pretightening force of bolt, seal ring to be flattened and form sealing effect.In this plastic pipe connection set, seal ring is flattened and form sealing effect, if seal ring and plastic joint body are crossed drive fit, packing into of seal ring will become very difficult; If it is more loose that seal ring and plastic joint body coordinate, may there is fold phenomenon in seal ring, have a strong impact on sealing effect under the effect of cutting ferrule; And, adopt this plastic pipe connection set, after plastic pipe connects, the sealing circle that will wear and tear of the media flow in pipeline, because material behavior and the thickness of seal ring are limited, will there is the damaged possibility of leaking of causing in seal ring after long-time running; In addition, this connection set is only applicable to the connection of equal diameter pipe, can not meet the not equal diameter pipe connectivity problem in engineering.
Therefore, those skilled in the art is devoted to develop the flushing pipe of a kind of novel plastic pipeline connection set, conduit component set and demister.
Model utility content
Because the above-mentioned defect of prior art, the utility model provides a kind of safe and reliable, simple and convenient, plastic pipe connection set that Applicable scope is wider.
For achieving the above object, the utility model provides a kind of connection set of plastic pipe, comprise the first pipe end for connecting the first pipeline, for connecting the second pipe end of second pipe and the pipe end secure component for fastening described the first pipe end and described the second pipe end, described connection set is set to:
In the time that described pipe end secure component is used for fastening described the first pipe end and described the second pipe end, described secure component applies the first active force to described the first pipe end, described secure component applies the second active force to described the second pipe end, and described the first active force and described the second active force directly or indirectly fit tightly described the first pipe end and described the second pipe end.
Wherein, describedly indirectly fit tightly and refer to: between described the first pipe end and described the second pipe end, have seal washer, described the first active force and described the second active force make described the first pipe end and described the second pipe end compress described seal washer laminating.
Preferably, the axial angle of described the first active force and described the first pipe end is θ 1, and described θ 1 is more than or equal to 0 degree and is less than 90 degree; The axial angle of described the second active force and described the second pipe end is θ 2, and described θ 2 is more than or equal to 0 degree and is less than 90 degree.More preferably, described θ 1 is more than or equal to 0 degree and is less than 45 degree, and described θ 2 is more than or equal to 0 degree and is less than 45 degree.More preferably, described θ 1 is more than or equal to 0 degree and is less than 30 degree, and described θ 2 is more than or equal to 0 degree and is less than 30 degree.
Preferably, described the first pipe end has the first bead, and described the second pipe end has the second bead, and described pipe end secure component is for fastening described the first bead and described the second bead, and described connection set is set to:
In the time that described pipe end secure component is used for the first bead of fastening described the first pipe end and the second bead of described the second pipe end, described pipe end secure component applies the first active force to described the first bead, described secure component applies the second active force to described the second bead, and described the first active force and described the second active force directly or indirectly fit tightly described the first bead and described the second bead.
Wherein, describedly indirectly fit tightly and refer to: between described the first bead and described the second bead, have seal washer, described the first active force and described the second active force make described the first bead and described the second bead compress described seal washer laminating.
Preferably, described the first bead has the first side and the second side, and the outer rim of described the first bead connects the first side of described the first bead and the second side of described the first bead; Described the second bead has the first side and the second side, the outer rim of described the second bead connects the first side of described the second bead and the second side of described the second bead, and the first side of described the first bead and the first side of described the second bead are set to:
In the time that described pipe end secure component is used for the first bead of fastening described the first pipe end and the second bead of described the second pipe end, the first side of described the first bead and the first side of described the second bead directly or indirectly fit tightly.
Wherein, describedly indirectly fit tightly and refer to: between the first side of described the first bead and the first side of described the second bead, have seal washer, described the first active force and described the second active force make seal washer laminating described in the first side of described the first bead and the first lateral surface compressing of described the second bead.
In a preferred embodiments of the present utility model, the outer rim width of described the first bead is less than the base widths that the base widths of described the first bead and/or the outer rim width of described the second bead are less than described the second bead, the A/F of described pipe end secure component is greater than described the first bead outer rim width and described the second bead outer rim width sum, and the A/F of described pipe end secure component is less than or equal to the base widths of described the first bead and the base widths sum of described the second bead.In the time being provided with seal washer between described the first bead and described the second bead, described the first bead outer rim width and described the second bead outer rim width sum have also comprised the thickness of seal washer; The base widths sum of the base widths of described the first bead and described the second bead has also comprised the thickness of seal washer.
Preferably, the base widths of described the first bead is greater than 1 with the ratio of the outer rim width of described the first bead and is less than 1.5; The base widths of described the second bead is greater than 1 with the ratio of the outer rim width of described the second bead and is less than 1.5.
Preferably, the angle of the first side of described the first bead and the second side of described the first bead is α 1, and described α 1 is more than or equal to 0 degree, is less than 90 degree; The angle α 2 of the first side of described the second bead and the second side of described the second bead, described α 2 is more than or equal to 0 degree, is less than 90 degree.
More preferably, the scope of described α 1 is 13～20 degree, and the scope of described α 2 is 13～20 degree.
More preferably, described α 1 is 16 degree, and described α 2 is 16 degree.
Preferably, described pipe end secure component has the groove for fastening described the first pipe end and described the second pipe end.The width of rebate of described groove is the A/F of pipe end secure component.
In a preferred embodiment of the present utility model, the width of rebate of described groove is greater than the bottom land width of described groove, the width of rebate of described groove is greater than the outer rim width of described the first bead and the outer rim width sum of described the second bead, and the bottom land width of described groove is less than or equal to described the first bead outer rim width and described the second bead outer rim width sum.In the time being provided with seal washer between described the first bead and described the second bead, described the first bead outer rim width and described the second bead outer rim width sum have also comprised the thickness of seal washer.
More preferably, the ratio of the bottom land width of the width of rebate of described groove and described groove is greater than 1 and is less than or equal to 3.
It should be noted that the width of rebate of the described groove of pipe end secure component described in other mode of executions of the utility model can be less than the bottom land width of described groove.
Preferably, described pipe end secure component is clip.
More preferably, the number of described clip is 2 or multiple.
More preferably, in the time that described clip is used for fastening described the first pipe end and described the second pipe end, between described clip, coordinate by fastening piece.
More preferably, described fastening piece is bolt.
More preferably, described bolt is plastic bolt.
Preferably, the outside diameter of the outside diameter of the first side of described the first bead and the first side of described the second bead equates.The outer rim that is described the first bead is concordant with the outer rim of described the second bead.
More preferably, the internal diameter of described pipe end secure component is more than or equal to the outside diameter of the first side of described the first bead.
Preferably, on the first side of described the first bead and the first side of described the second bead, there is respectively the seal groove that coordinates described seal washer.
More preferably, described seal groove is triangular groove, and described triangular groove refers to that the cross section of described seal groove is triangle.
Preferably, described the first pipe end is identical with the internal diameter of described the second pipe end, the internal diameter of described the first pipe end and described the second pipe end can be different in other embodiments, such as in order to connect waney plastic pipe, the internal diameter of described the first pipe end and described the second pipe end can be different.
Preferably, described the first pipe end has the straight length for connecting described the first pipeline.
Preferably, described the second pipe end has the straight length for connecting described second pipe.
Material that it should be noted that pipe end can be plastics.
The material of clip can be plastics.
The utility model also provides a kind of conduit component set, comprises plastic pipe and above-mentioned connection set.
Preferably, described plastic pipe comprises the first pipeline and second pipe.
More preferably, the one-body molded and/or described second pipe of described the first pipeline and described the first pipe end and described the second pipe end are one-body molded.
The utility model also provides a kind of connecting means of plastic pipe, and described plastic pipe comprises the first pipeline and second pipe, uses above-mentioned connection set to connect described the first pipeline and described second pipe.
Preferably, described the first pipeline is connected by hot melt with described the first pipe end and/or described second pipe is connected by hot melt with described the second pipe end.
The utility model also provides a kind of flushing pipe of demister, and the flushing pipe of described demister has above-mentioned connection set.
The utility model provides a kind of connection set of plastic pipe, pipe end is provided with bead, thereby realize the connection of pipe end by pipe end secure component engaging bead, such connection set is compared flange, and to be connected to installation, dismounting, pipeline maintenance aspect all more convenient, operating efficiency is high, has met pipeline and has connected rapid assembling and the demand being connected fast; The connection effect of this Placement is easy to control; The mode of bead is set, has strengthened the connection thickness of pipeline junction, improved the bearing capacity of pipeline junction; Strengthen sealing area, obviously improved the effect of anti-leak; Situation about particularly connecting for equal diameter pipe not, the mode that bead is set is compared other modes and is more had superiority.
In a preferred embodiment of the present utility model, pipe end secure component is clip, and the number of clip is 2.Certainly can be multiple.When this device is installed, the bead of pipe end and the fitting surface of clip have several angle, adopt fastening piece to connect, such as plastic bolt nut between clip; Clip is under the pretightening force effect of fastening piece, and the surface of clip inner chamber and the bead of pipe end coordinate, and two distances between pipe end are diminished, thus crush seal packing ring; Gasket ring expands after being squeezed, thereby fills up seal groove on pipe end and reach the object of sealing.Adopt the connection set of the disclosed plastic pipe of the utility model, the material of the requirement of the kind of medium, pipeline working pressure, caliber, seal leakage degree, gasket ring and in the space distance without between pressure lower seal gasket ring and pipe end sealing surface in can composite duct, by the stroke of fastening piece is set, complete fast, easily connection request.
In addition, have under corrosive operating conditions, fastening piece is selected plastic bolt, and does not use expensive stainless steel bolt or alloy bolt, thereby reduces connection set cost; Under non-corrosive operating conditions, fastening piece can be selected inexpensive common metal bolt.The demand that can coordinate so different operating modes, effectively reduces costs.In addition, for different pressure-bearing demands, can adapt to by the size that changes bolt.
Two pipe ends have the different tube diameters of the plastic pipe connecting as required and the internal diameter that coordinates.For waney plastic pipe, the internal diameter of two pipe ends is also different.The outer rim of the bead of two pipe ends is that concordant situation is more conducive to sealing.
It should be noted that the plastics that pipe end that the utility model provides can be connected with needs adopt the modes such as hot melt to connect, can be one-body molded with plastic pipe.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, so that those skilled in the art understands the purpose of this utility model, feature and effect fully.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the plastic pipe connection set in preferred embodiment of the utility model;
Fig. 2 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Fig. 3 is the not sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Fig. 4 is the schematic diagram of the clip in preferred embodiment of the utility model;
Fig. 5 is the sectional drawing of the clip in Fig. 4;
Fig. 6 is the stereogram of clip in Fig. 4;
Fig. 7 is the connection set schematic diagram of the isometrical connection in preferred embodiment of the utility model;
Fig. 8 is the connection set schematic diagram of the not isometrical connection in preferred embodiment of the utility model;
Fig. 9 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 10 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 11 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 12 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 13 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 14 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model;
Figure 15 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model.
In the accompanying drawings, each symbol represents respectively: 101 and 102 represent plastic tube to be connected, 21 and 22 represent the first pipe end and the second pipe end, 3 represent seal washer, 4 represent clip, 8 represent bolt, 219 represent the outer rim of the first bead, 215 represent the second side of the first bead, 216 represent the first side of the first bead, 217 represent the seal groove of the first bead, 2121 represent the straight length of the first pipe end, 229 represent the outer rim of the second bead, 225 represent the second side of the second bead, 226 represent the first side of the second bead, 227 represent the seal groove of the second bead, 2221 represent the straight length of the second pipe end, 2139 represent the not outer rim of the first bead of the first pipe end with straight length, 2135 represent not the second side of the first bead of the first pipe end with straight length, 2136 represent not the first side of the first bead of the first pipe end with straight length, 2137 represent the not seal groove of the first bead of the first pipe end with straight length, 2239 represent the not outer rim of the first bead of the first pipe end with straight length, 2235 represent not the second side of the first bead of the first pipe end with straight length, 2236 represent not the first side of the first bead of the first pipe end with straight length, 2237 represent the not seal groove of the first bead of the first pipe end with straight length, d represents the outside diameter of the bead of pipe end, R represents the internal diameter of pipe end secure component.
Embodiment
Illustrate preferred embodiment of the present utility model below in conjunction with embodiment.
Embodiment 1
Fig. 1 is the schematic diagram of the plastic pipe connection set in preferred embodiment of the utility model; Fig. 2 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model, and the dotted line in Fig. 2 represents the axial direction of pipe end.Fig. 4 is the schematic diagram of the clip in preferred embodiment of the utility model; Fig. 5 is the sectional drawing of the clip in Fig. 4; Fig. 6 is the stereogram of clip in Fig. 4.
In a preferred embodiment of the present utility model, the connection set of plastic pipe comprises the first pipe end 21, the second pipe end 22, clip 4, the first pipe end 21 with the second pipe end 22 for being connected respectively two plastic tubes to be connected, clip 4 is for having seal washer 3 between fastening the first pipe end 21 and the second pipe end 22, the first pipe ends 21 and the second pipe end 22.In the present embodiment, the number of clip is 2, and clip 4 during for fastening the first pipe end 21 and the second pipe end 22, adopts bolton between clip.Clip is in the process of bolt tightening, under the effect of the power of bolt, clip applies the first active force to the first pipe end 21, apply the second active force to the second pipe end 22, the first active force and the second active force are fitted the first pipe end 21 and the second pipe end 22 press seal packing rings 3, thereby realize being tightly connected of the first pipe end 21 and the second pipe end 22.The axial angle of the first active force and the first pipe end 21 is θ 1, and θ 1 can be more than or equal to 0 degree and be less than 90 degree; The axial angle of the second active force and the second pipe end 22 is θ 2, and θ 2 can be more than or equal to 0 degree and be less than 90 degree.In the present embodiment, θ 1 and θ 2 are no more than 45 degree.The plastic pipe that the first pipe end 21 can be connected with needs with the second pipe end 22 adopts the modes such as hot melt to connect, also can be one-body molded with plastic pipe.
Wherein, first pipe end 21 one end have the first bead, and the outer rim 219 that the first bead has the first side 216, the second side 215 and outer rim 219, the first beads connects the first side 216 and second side 215 of the first bead; Second pipe end 22 one end have the second bead, and the outer rim 229 that the second bead has the first side 226, the second side 225 and outer rim 229, the second beads connects the first side 226 and second side 225 of the second bead; Clip 4 is for fastening the first bead and the second bead, clip is in the process of bolt tightening, under the effect of the power of bolt, clip applies the first active force to described the first bead, apply the second active force to described the second bead, described the first active force and described the second active force are fitted to each other the first side 216 of the first bead and the first side 226 of the second bead and push down seal washer, and the first side 216 of the first pipe end 21 and the first side 226 of the second pipe end 22 are all set to sealing surface.
In the present embodiment, the first side 216 of the first bead and the first side 226 of the second bead have respectively the seal groove 217 and 227 coordinating with seal ring.
In the present embodiment, the first pipe end 21 and the second pipe end 22 have respectively straight length 2121 with 2221 for being connected two plastic tubes to be connected.Clip 4 is semicircle clip, and clip inner chamber has draw-in groove, between two clips, coordinates by bolt 8.The draw-in groove of clip has first surface, second and bottom land, and the first surface of clip is configured to coordinate with the second side 215 of the first bead, and the second face of clip is configured to coordinate with the second side 225 of described the second bead.
Clip is under the pretightening force effect of bolt, and the draw-in groove of clip and the bead of pipe end tightly engage, and two distances between pipe end are diminished, thus crush seal packing ring 3; Seal washer expands after being squeezed, and fills up the seal groove on pipe end, thereby reaches the object of sealing.
Have under corrosive operating conditions, the material selection plastic bolt of bolt, and do not use expensive stainless steel bolt or alloy bolt, thus reduce connection set cost; Under non-corrosive operating conditions, the material of bolt can be selected inexpensive common metal bolt.
The straight length of pipe end and plastic tube to be connected can adopt sweat soldering mode to be welded to connect in factory, then at engineering site to pipe end by clip connected, thereby complete the connection of pipeline.The pipe end that the present embodiment provides can be one-body molded with plastic pipe.At engineering site to pipe end by clip connected, thereby complete the connection of pipeline.
Embodiment 2
Basic identical in the structure of the present embodiment and embodiment 1, difference is: the axial angle of the first active force and the first pipe end 21 is that the axial angle of θ 1, the second active force and the second pipe end 22 is θ 2, and θ 1 and θ 2 are 30 degree.
Fig. 3 is the not sectional drawing of the pipe end with straight length in preferred embodiment of the utility model.The first pipe end has the first bead, and the first bead has the first side 2136 and second side 2135 of outer rim 2139 connecting flanges of the first side 2136, the second side 2135 and outer rim 2139, the first beads; The first side 2136 of the first bead is set to sealing surface, and seal groove 2137, the second sides 2135 on the first side 2136 with fitted seal packing ring are the face relative with the first side 2136; The structure of the second pipe end is identical.Second side 2135 of bead of clip by engaging two pipe ends with 2235 to be connected two pipe ends.Basic identical in the structure of the present embodiment and embodiment 1, difference is: in the present embodiment, pipe end does not have straight pipe portion, and pipeline to be connected can directly be connected with pipe end, as pipeline to be connected and pipe end directly carry out welded corner joint.The pipe end that the present embodiment provides can be one-body molded with plastic pipe.At engineering site to pipe end by clip connected, thereby complete the connection of pipeline.
Fig. 9 is the sectional drawing of the pipe end with straight length in preferred embodiment of the utility model.In the present embodiment, the connection set of plastic pipe comprise the first pipe end 21 for connecting the first pipeline 101, for connecting the second pipe end 22 of second pipe 102 and the clip for fastening described the first pipe end 21 and described the second pipe end 22.Described the first pipe end 21 has the first bead, and described the second pipe end 22 has the second bead, and described clip is for fastening described the first bead and described the second bead.Described the first bead has the first side and the second side, and the outer rim of described the first bead connects the first side of described the first bead and the second side of described the first bead; Described the second bead has the first side and the second side, and the outer rim of described the second bead connects the first side of described the second bead and the second side of described the second bead.In the time that clip is used for the first bead of fastening described the first pipe end 21 and the second bead of described the second pipe end 22, the first side of described the first bead and the first side of described the second bead directly or indirectly fit tightly.
Wherein, indirectly fit tightly and refer to: between the first side of described the first bead and the first side of described the second bead, there is seal washer 3, when clip is during for the first bead of fastening described the first pipe end 21 and the second bead of described the second pipe end 22, seal washer laminating described in the first side of described the first bead and the first lateral surface compressing of described the second bead.
In the present embodiment, the outer rim width of described the first bead is less than the base widths that the base widths of described the first bead and/or the outer rim width of described the second bead are less than described the second bead, the width of rebate of described clip is greater than described the first bead outer rim width and described the second bead outer rim width sum, and the width of rebate of described clip is less than or equal to the base widths of described the first bead and the base widths sum of described the second bead.
Worth explanation yes, " the outer rim width of described the first bead is less than the base widths that the base widths of described the first bead and/or the outer rim width of described the second bead are less than described the second bead; the width of rebate of described clip is greater than described the first bead outer rim width and described the second bead outer rim width sum; and the width of rebate of described clip is less than or equal to the base widths of described the first bead and the base widths sum of described the second bead " also there is other performance, shown in Figure 10～Figure 12.Figure 10 shows a kind of embodiment, and its basic structure is identical with the present embodiment, and difference is that the degree of depth of draw-in groove of clip is less.The internal diameter that Figure 11 and Figure 12 show clip is greater than the situation of the outside diameter of bead.
Embodiment 5
Basic identical in the structure of the present embodiment and embodiment 4, and the outer rim width of described the first bead and the base widths ratio of described the first bead are 1:1; The outer rim width of described the second bead and the base widths ratio of described the second bead are 1:1.5.
Embodiment 6
Basic identical in the structure of the present embodiment and embodiment 4, and the outer rim width of described the first bead and the base widths ratio of described the first bead are 1:1.2; The outer rim width of described the second bead and the base widths ratio of described the second bead are 1:1.2.
Embodiment 7
Basic identical in the structure of the present embodiment and embodiment 4, and the angle of the first side of described the first bead and the second side of described the first bead is α 1, and described α 1 is 13 degree; The angle α 2 of the first side of described the second bead and the second side of described the second bead, described α 2 is 13 degree.
Basic identical in the structure of the present embodiment and embodiment 7, difference is, the angle of the first side of described the first bead and the second side of described the first bead is α 1, and described α 1 is 20 degree; The angle α 2 of the first side of described the second bead and the second side of described the second bead, described α 2 is 20 degree.
Embodiment 9
Basic identical in the structure of the present embodiment and embodiment 7, difference is, the angle of the first side of described the first bead and the second side of described the first bead is α 1, and described α 1 is 16 degree; The angle α 2 of the first side of described the second bead and the second side of described the second bead, described α 2 is 16 degree.
Embodiment 10
As shown in figure 13, in the present embodiment, the connection set of plastic pipe comprise the first pipe end 21 for connecting the first pipeline, for connecting the second pipe end 22 of second pipe and the clip for fastening described the first pipe end 21 and described the second pipe end 22.Described the first pipe end 21 has the first bead, and described the second pipe end 22 has the second bead, and described clip is for fastening described the first bead and described the second bead.Described the first bead has the first side and the second side, and the outer rim of described the first bead connects the first side of described the first bead and the second side of described the first bead; Described the second bead has the first side and the second side, and the outer rim of described the second bead connects the first side of described the second bead and the second side of described the second bead.In the time that clip is used for the first bead of fastening described the first pipe end 21 and the second bead of described the second pipe end 22, the first side of described the first bead and the first side of described the second bead directly or indirectly fit tightly.
Wherein, indirectly fit tightly and refer to: between the first side of described the first bead and the first side of described the second bead, there is seal washer, when clip is during for the first bead of fastening described the first pipe end 21 and the second bead of described the second pipe end 22, seal washer laminating described in the first side of described the first bead and the first lateral surface compressing of described the second bead.
The width of rebate of draw-in groove is greater than the bottom land width of described groove, the width of rebate of draw-in groove is greater than the outer rim width of described the first bead and the outer rim width sum of described the second bead, and the bottom land width of draw-in groove is less than or equal to described the first bead outer rim width and described the second bead outer rim width sum.In the present embodiment, adopt clip as pipe end secure component, the width of rebate of the groove of pipe end secure component is the width of rebate of the draw-in groove of clip.
In the present embodiment, the ratio of the bottom land width of the width of rebate of draw-in groove and draw-in groove is 1.1:1.
What deserves to be explained is, also there is other performance in " width of rebate of draw-in groove is greater than the bottom land width of described groove; the width of rebate of draw-in groove is greater than the outer rim width of described the first bead and the outer rim width sum of described the second bead; the bottom land width of draw-in groove is less than or equal to described the first bead outer rim width and described the second bead outer rim width sum ", shown in Figure 14～Figure 15.Figure 14 shows a kind of embodiment, and its structure and the present embodiment are basic identical, and difference is, the internal diameter of clip is greater than the outside diameter of the first flange; Figure 15 shows a kind of embodiment, and the embodiment shown in its structure and Figure 14 is basic identical, and difference is, in this embodiment, the degree of depth of the draw-in groove of clip is less.
Embodiment 11
Basic identical in the structure of the present embodiment and embodiment 10, difference is, the ratio of the bottom land width of the width of rebate of draw-in groove and draw-in groove is 3:1.
It should be noted that, also there is other mode of execution in the utility model, as the width of rebate of the groove of pipe end secure component be less than as described in the bottom land width of groove.
Embodiment 12
A preferred embodiment of the present utility model is applied to the flushing pipe of the demister that connects fume desulfurating absorption tower.A temperature 40～95 ℃, exist SO2, SO3, Cl, NO, NO2 etc. to there is the coal-fired boiler tail gas of strong corrosion, flue gas flow rate is at 4～20m/s, and in flue gas, carrying a large amount of limestone gypsum slurries droplets, chlorine ion concentration in droplet can reach in the environment of 20000ppm, the flushing pipe of the demister of application fume desulfurating absorption tower, medium in its pipeline is generally process water, and pressure is within the scope of 1.0～6.0bar, and selecting plastic pipe is economic selection reliably.Because duct length is very long, the longlyest reach 22 meters, therefore plastic pipe can not be transported to scene as whole mode, therefore needs to connect at the scene these plastic pipes.No matter reach in the past over more than 20 year, be Germany or the U.S. of machine building industry prosperity, and the connection of this plastic pipe adopts or on-the-spot thermofussion welding or inipple connection always, adopts once in a while the high flange of cost to connect.Connecting for flange, is mainly that the bolt material of flange requires to adopt alloy bolt to tolerate strong corrosive atmosphere.And in the present embodiment, adopt a kind of plastic pipe connection set to connect the flushing pipe of the demister of fume desulfurating absorption tower, replace expensive alloy bolt with cheap plastic bolt.
In the present embodiment, plastic pipe connection set comprises the first pipe end 21, the second pipe end 22, clip and seal washer, the first pipe end 21 with the second pipe end 22 for being connected respectively two plastic tubes to be connected, seal washer is placed between the first pipe end 21 and the second pipe end 22, wherein the first bead has the first side, the second side and outer rim, and the outer rim of the first bead connects the first side and second side of the first bead; Second pipe end 22 one end have the second bead, the second bead has the first side, the second side and outer rim, the outer rim of the second bead connects the first side and second side of the second bead, the first side of the first bead and the first side of the second bead are set to be fitted to each other and push down seal washer, the second side of the first bead is the face relative with the first side of the first bead, the second side of the second bead is the face relative with the first side of the second bead, and clip is set to engage the second side of the first bead and the second side of the second bead.In the present embodiment, having two clips, is respectively the first clip and the second clip.Between two clips, coordinate by bolt.The first side of the first side of the first pipe end 21 and the second pipe end 22 is all set to sealing surface.The draw-in groove of the first clip has first surface, second and bottom land, and the first surface of the first clip is configured to coordinate with the second side of the first bead, and the second face of the first clip is configured to coordinate with the second side of described the second bead.The draw-in groove of the second clip has first surface, second and bottom land, and the first surface of the second clip is configured to coordinate with the first side of the first bead, and the second face of the second clip is configured to coordinate with the second side of the second bead.The first pipe end 21 has respectively straight length for being connected two plastic tubes to be connected with the second pipe end 22.
Replace expensive alloy bolt in order to solve with cheap plastic bolt, and the pretension stress that the bolt that traditional flange connects need to bear self also will tolerate the axial stress that the pressure medium in pipeline brings simultaneously, and plastic bolt is not suitable for the operating mode large for axial stress and be applicable to being applied to the operating mode that shearing stress is large, be therefore converted into by axial stress on bolt and is mainly subject to shearing stress.Determine that the diameter of plastic bolt can analyze design by Mechanics Calculation.Pressure in pipeline is larger, caliber is larger, the longer plastic bolt of stream time is just thicker, exceed the suffered working stress of plastic bolt of 8000 hours for stream time in principle and must not exceed 1/6 of plastic bolt allowable stress, margin of safety requires more than 6 times.Certainly require short operating mode can suitably reduce margin of safety for stream time.In an embodiment of the present utility model, design work pressure is 6.0Bar, and the diameter of two plastic tubes to be connected is
160, through calculating and destructive test repeatedly, select the plastic bolt of M18 to connect the first clip and the second clip.
For the bead of holding tube termination and the smooth and easy engagement of the draw-in groove of clip, in manufacturing, guarantee quality of fit by the accuracy of injection mould; In assembly and connection, on the second side of bead, be coated with last layer oiling agent, guarantee not occur any bite phenomenon in the process of bolt tightening.
The plastic pipe connection set that adopts the utility model to provide, the process that plastic bolt is tightened is that nut stroke S1 reduces the distance that causes the first clip and the second clip, clip stroke is S2, S2=S1, distance between clip reduces to transmit by the second side of the bead of pipe end, cause distance between two pipe ends to reduce, pipe end stroke is S3.S3 depend on kind, pipeline working pressure, caliber, the seal leakage degree of pipeline internal medium requirement, gasket ring material and in the space distance without between pressure lower seal gasket ring and pipe end sealing surface, stroke S3 will at least guarantee that gasket ring is extruded expansion and fills up the sealing wire casing on pipe end, and the medium in assurance pipeline is in sealing state.In an embodiment of the present utility model, S1=6.0mm, S3=1.72mm.
In addition, the selection of the first side of the bead of pipe end and the angle of the second side is mainly determined according to the allowable stress of piping design pressure, pipe diameter, bolt, undertaken the intensity of each assembly to design by mechanical analysis, and select the angle of the first side and second side of optimized bead.Under identical operating mode, the first side of bead and the angle of the second side are larger, and the axial stress of bolt carrying is just larger.If ignore the cost factor of part, do not consider the needed material consumption of each assembly and the specification of bolt, between 0-90 °, be all feasible in theory.In this example, design first side of bead of the first pipe end 21 and first side of bead of the angle of the second side and the second pipe end 22 and the angle of the second side are all 16 °.The stroke S1 of the thickness requirement of clip, the requirement of strength of bolt, nut, the stroke S2 of clip, degree (S3 decision) that sealing surface is extruded are all in rational interval, after device has connected, both meet mechanics principle, also met the requirement of product appearance aesthetics simultaneously.
Fig. 7 shows the schematic diagram of the present embodiment, two
160 plastic pipes are the long splice composition of same diameter, two identical pipe ends are welded on respectively to two of plastic pipe, place a seal washer between two pipe ends, can select EPDM; Two semicircular clips are buckled on two pipe ends, keep clip and pipe end engagement smooth and easy, tighten the connecting bolt between clip, these two plastic pipes have connected.
d1 and
d2 represents respectively the caliber of plastic pipe to be connected.
Embodiment 13
Fig. 8 is the connection set schematic diagram of the not isometrical connection in preferred embodiment of the utility model.Mechanism in the present embodiment and embodiment 12 are basic identical, and difference is, in the present embodiment, the caliber of plastic pipe to be connected not etc., does not select different pipe ends for connecting plastic pipeline respectively.
Two different pipe ends can be by being connected with plastic pipeline hot melt, the bead external diameter of two pipe ends is identical, the identical so that pipe end of the outside diameter of the first side of the outside diameter of the first side of the bead of the first pipe end 21 and the bead of the second pipe end 22 is connected, the internal diameter difference of pipe end, straight length bore is different so that connect respectively the plastic tube of different tube diameters separately.Between two pipe ends, place a seal washer, two semicircular clips are buckled on two pipe ends, keep clip and pipe end engagement smooth and easy, tighten the connecting bolt between clip, these two plastic pipes have connected.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that related domain just can be made many modifications and variations according to design of the present utility model without creative work.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in by the determined protection domain of claims.
Claims (35)
1. the connection set of a plastic pipe, it is characterized in that, comprise the first pipe end for connecting the first pipeline, for connecting the second pipe end of second pipe and the pipe end secure component for fastening described the first pipe end and described the second pipe end, described connection set is set to:
In the time that described pipe end secure component is used for fastening described the first pipe end and described the second pipe end, described secure component applies the first active force to described the first pipe end, described secure component applies the second active force to described the second pipe end, and described the first active force and described the second active force directly or indirectly fit tightly described the first pipe end and described the second pipe end.
2. the connection set of plastic pipe as claimed in claim 1, it is characterized in that, describedly indirectly fit tightly and refer to: between described the first pipe end and described the second pipe end, have seal washer, described the first active force and described the second active force make described the first pipe end and described the second pipe end compress described seal washer laminating.
3. the connection set of plastic pipe as claimed in claim 1, is characterized in that, the axial angle of described the first active force and described the first pipe end is θ 1, and described θ 1 is more than or equal to 0 degree and is less than 90 degree; The axial angle of described the second active force and described the second pipe end is θ 2, and described θ 2 is more than or equal to 0 degree and is less than 90 degree.
4. the connection set of plastic pipe as claimed in claim 3, is characterized in that, described θ 1 is more than or equal to 0 degree and is less than 45 degree, and described θ 2 is more than or equal to 0 degree and is less than 45 degree.
5. the connection set of plastic pipe as claimed in claim 3, is characterized in that, described θ 1 is more than or equal to 0 degree and is less than 30 degree, and described θ 2 is more than or equal to 0 degree and is less than 30 degree.
6. the connection set of plastic pipe as claimed in claim 1, it is characterized in that, described the first pipe end has the first bead, and described the second pipe end has the second bead, described pipe end secure component is for fastening described the first bead and described the second bead, and described connection set is set to:
In the time that described pipe end secure component is used for the first bead of fastening described the first pipe end and the second bead of described the second pipe end, described pipe end secure component applies the first active force to described the first bead, described secure component applies the second active force to described the second bead, and described the first active force and described the second active force directly or indirectly fit tightly described the first bead and described the second bead.
7. the connection set of plastic pipe as claimed in claim 6, it is characterized in that, describedly indirectly fit tightly and refer to: between described the first bead and described the second bead, have seal washer, described the first active force and described the second active force make described the first bead and described the second bead compress described seal washer laminating.
8. the connection set of plastic pipe as claimed in claim 6, is characterized in that, described the first bead has the first side and the second side, and the outer rim of described the first bead connects the first side of described the first bead and the second side of described the first bead; Described the second bead has the first side and the second side, and the outer rim of described the second bead connects the first side of described the second bead and the second side of described the second bead, and the first side of described the first bead and the first side of described the second bead are set to:
In the time that described pipe end secure component is used for the first bead of fastening described the first pipe end and the second bead of described the second pipe end, the first side of described the first bead and the first side of described the second bead directly or indirectly fit tightly.
9. the connection set of plastic pipe as claimed in claim 8, it is characterized in that, describedly indirectly fit tightly and refer to: between the first side of described the first bead and the first side of described the second bead, have seal washer, described the first active force and described the second active force make seal washer laminating described in the first side of described the first bead and the first lateral surface compressing of described the second bead.
10. the connection set of plastic pipe as claimed in claim 8, it is characterized in that, the outer rim width of described the first bead is less than the base widths that the base widths of described the first bead and/or the outer rim width of described the second bead are less than described the second bead, the A/F of described pipe end secure component is greater than described the first bead outer rim width and described the second bead outer rim width sum, and the A/F of described pipe end secure component is less than or equal to the base widths of described the first bead and the base widths sum of described the second bead.
The connection set of 11. plastic pipes as claimed in claim 10, is characterized in that, the base widths of described the first bead is greater than 1 with the ratio of the outer rim width of described the first bead and is less than 1.5; The base widths of described the second bead is greater than 1 with the ratio of the outer rim width of described the second bead and is less than 1.5.
The connection set of 12. plastic pipes as claimed in claim 10, is characterized in that, the angle of the first side of described the first bead and the second side of described the first bead is α 1, and described α 1 is more than or equal to 0 degree, is less than 90 degree; The angle α 2 of the first side of described the second bead and the second side of described the second bead, described α 2 is more than or equal to 0 degree, is less than 90 degree.
The connection set of 13. plastic pipes as claimed in claim 12, is characterized in that, the scope of described α 1 is 13～20 degree, and the scope of described α 2 is 13～20 degree.
The connection set of 14. plastic pipes as claimed in claim 12, is characterized in that, described α 1 is 16 degree, and described α 2 is 16 degree.
The connection set of 15. plastic pipes as claimed in claim 8, is characterized in that, described pipe end secure component has the groove for fastening described the first pipe end and described the second pipe end.
The connection set of 16. plastic pipes as claimed in claim 15, it is characterized in that, the width of rebate of described groove is greater than the bottom land width of described groove, the width of rebate of described groove is greater than the outer rim width of described the first bead and the outer rim width sum of described the second bead, and the bottom land width of described groove is less than or equal to described the first bead outer rim width and described the second bead outer rim width sum.
The connection set of 17. plastic pipes as claimed in claim 16, is characterized in that, the ratio of the bottom land width of the width of rebate of described groove and described groove is greater than 1 and is less than or equal to 3.
The connection set of 18. plastic pipes as claimed in claim 15, is characterized in that, the width of rebate of described groove is less than the bottom land width of described groove.
The connection set of 19. plastic pipes as claimed in claim 1, is characterized in that, described pipe end secure component is clip.
The connection set of 20. plastic pipes as claimed in claim 19, is characterized in that, the number of described clip is 2 or multiple.
The connection set of 21. plastic pipes as claimed in claim 20, is characterized in that, in the time that described clip is used for fastening described the first pipe end and described the second pipe end, between described clip, coordinates by fastening piece.
The connection set of 22. plastic pipes as claimed in claim 21, is characterized in that, described fastening piece is bolt.
The connection set of 23. plastic pipes as claimed in claim 22, is characterized in that, described bolt is plastic bolt.
The connection set of 24. plastic pipes as claimed in claim 8, is characterized in that, the outside diameter of the outside diameter of the first side of described the first bead and the first side of described the second bead equates.
The connection set of 25. plastic pipes as claimed in claim 24, it is characterized in that, in the time that described pipe end secure component is used for the first bead of fastening described the first pipe end and the second bead of described the second pipe end, the internal diameter of described pipe end secure component is more than or equal to the outside diameter of the first side of described the first bead.
The connection set of 26. plastic pipes as claimed in claim 9, is characterized in that, has respectively the seal groove that coordinates described seal washer on the first side of described the first bead and the first side of described the second bead.
The connection set of 27. plastic pipes as claimed in claim 26, is characterized in that, described seal groove is triangular groove, and described triangular groove refers to that the cross section of described seal groove is triangle.
The connection set of 28. plastic pipes as claimed in claim 1, is characterized in that, described the first pipe end is identical with the internal diameter of described the second pipe end.
The connection set of 29. plastic pipes as claimed in claim 1, is characterized in that, described the first pipe end is different with the internal diameter of described the second pipe end.
The connection set of 30. plastic pipes as claimed in claim 1, is characterized in that, described the first pipe end has the straight length for connecting described the first pipeline.
The connection set of 31. plastic pipes as claimed in claim 1, is characterized in that, described the second pipe end has the straight length for connecting described second pipe.
32. 1 kinds of conduit component set, comprise plastic pipe and the connection set as described in claim 1～31 any one.
33. conduit component set as claimed in claim 32, is characterized in that, described plastic pipe comprises the first pipeline and second pipe.
34. conduit component set as claimed in claim 33, is characterized in that, the one-body molded and/or described second pipe of described the first pipeline and described the first pipe end and described the second pipe end are one-body molded.
The flushing pipe of 35. 1 kinds of demisters, is characterized in that, the flushing pipe of described demister has the connection set as described in claim 1～31 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320650996.1U CN203671121U (en) | 2013-08-07 | 2013-10-21 | Connecting device and pipeline component assembly of plastic pipeline and flushing pipeline of mist eliminator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342560 | 2013-08-07 | ||
| CN201310342560.0 | 2013-08-07 | ||
| CN201320650996.1U CN203671121U (en) | 2013-08-07 | 2013-10-21 | Connecting device and pipeline component assembly of plastic pipeline and flushing pipeline of mist eliminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671121U true CN203671121U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310496964.5A Pending CN104344144A (en) | 2013-08-07 | 2013-10-21 | Connecting device for plastic pipeline |
| CN201910032906.4A Pending CN111237573A (en) | 2013-08-07 | 2013-10-21 | Connecting device for plastic pipeline |
| CN201320650996.1U Expired - Lifetime CN203671121U (en) | 2013-08-07 | 2013-10-21 | Connecting device and pipeline component assembly of plastic pipeline and flushing pipeline of mist eliminator |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310496964.5A Pending CN104344144A (en) | 2013-08-07 | 2013-10-21 | Connecting device for plastic pipeline |
| CN201910032906.4A Pending CN111237573A (en) | 2013-08-07 | 2013-10-21 | Connecting device for plastic pipeline |
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| CN (3) | CN104344144A (en) |
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| CN104344144A (en) * | 2013-08-07 | 2015-02-11 | 德梅斯特（上海）环保设备有限公司 | Connecting device for plastic pipeline |
| CN107642649A (en) * | 2017-09-22 | 2018-01-30 | 中建八局第二建设有限公司 | A kind of construction pressure-resistant pipeline and its connecting installation structure |
| CN109027369A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | It is a kind of for controlling the valve of gas path on-off in vehicle |
| CN109027368A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | A kind of on-off control valve for tail gas clean-up in vehicle gas circuit |
| CN109027367A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | A kind of vehicle gas path on-off control valve |
| JP2019203549A (en) * | 2018-05-23 | 2019-11-28 | 株式会社リケンＣｋｊｖ | Resin pipe for piping connection and connection structure including the same |
| CN110947247A (en) * | 2019-12-20 | 2020-04-03 | 江苏固诺自动化装备有限公司 | Water paint mist purification device |
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| CN108662338A (en) * | 2018-07-02 | 2018-10-16 | 刘瑄 | METAL HEATING PROCESS piece connecting plastic pipeline structure and technique for sticking |
| CN110594517A (en) * | 2019-07-31 | 2019-12-20 | 关辉 | PVC reinforced plastic pipeline convenient to install and capable of preventing interface deformation |
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- 2013-10-21 CN CN201310496964.5A patent/CN104344144A/en active Pending
- 2013-10-21 CN CN201910032906.4A patent/CN111237573A/en active Pending
- 2013-10-21 CN CN201320650996.1U patent/CN203671121U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104344144A (en) * | 2013-08-07 | 2015-02-11 | 德梅斯特（上海）环保设备有限公司 | Connecting device for plastic pipeline |
| CN107642649A (en) * | 2017-09-22 | 2018-01-30 | 中建八局第二建设有限公司 | A kind of construction pressure-resistant pipeline and its connecting installation structure |
| JP2019203549A (en) * | 2018-05-23 | 2019-11-28 | 株式会社リケンＣｋｊｖ | Resin pipe for piping connection and connection structure including the same |
| JP7068038B2 (en) | 2018-05-23 | 2022-05-16 | 株式会社リケンCkjv | Resin pipe for pipe connection and connection structure using it |
| CN109027369A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | It is a kind of for controlling the valve of gas path on-off in vehicle |
| CN109027368A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | A kind of on-off control valve for tail gas clean-up in vehicle gas circuit |
| CN109027367A (en) * | 2018-09-04 | 2018-12-18 | 桐城市立行电子科技有限公司 | A kind of vehicle gas path on-off control valve |
| CN110947247A (en) * | 2019-12-20 | 2020-04-03 | 江苏固诺自动化装备有限公司 | Water paint mist purification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104344144A (en) | 2015-02-11 |
| CN111237573A (en) | 2020-06-05 |
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Address after: 200137 room, room 5, No. 2577, Xu Xu Road, Shanghai, Pudong New Area, China Patentee after: DEMISTER (SHANGHAI) ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 200137 room, room 5, No. 2577, Xu Xu Road, Shanghai, Pudong New Area, China Patentee before: DEMISTER (SHANGHAI) ENVIRONMENTAL EQUIPMENT Co.,Ltd. |
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Granted publication date: 20140625 |