CN111750198B - Analysis sample transmission pipeline structure with heating function - Google Patents
Analysis sample transmission pipeline structure with heating function Download PDFInfo
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- CN111750198B CN111750198B CN202010640658.4A CN202010640658A CN111750198B CN 111750198 B CN111750198 B CN 111750198B CN 202010640658 A CN202010640658 A CN 202010640658A CN 111750198 B CN111750198 B CN 111750198B
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- Prior art keywords
- pipeline
- connector
- heating function
- transmission pipeline
- pipe fixing
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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
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. using induction, dielectric or microwave heating
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
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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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/063—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends by means of conical threaded surfaces
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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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/021—Electrically insulating joints or couplings for screw-threaded joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses an analysis sample transmission pipeline structure with a heating function, which comprises a transmission pipeline and at least two high-temperature airtight insulating joints respectively connected to the transmission pipeline, wherein each high-temperature airtight insulating joint comprises a hollow adapter column, a connector and a pipe fixing piece, the adapter column is made of a high-temperature-resistant insulating inert material, the connector and the pipe fixing piece are made of metal materials, a pair of connectors are respectively connected to two sides of the adapter column, and a pair of pipe fixing pieces are respectively fixedly arranged at two ends of the transmission pipeline to be in butt joint and are connected with the connectors on the same side through the pipe fixing pieces so as to be in butt joint communication. Because the switching post adopts high temperature resistant insulating inert material, consequently add the voltage at the connector at pipeline both ends, can directly heat the pipeline between them, and with outer pipeline insulation, still have can keep in high temperature state for a long time, guarantee the leakproofness of transmission pipeline, reduce the dead volume, effectively avoid adsorbing advantages such as causing the pipeline pollution.
Description
Technical Field
The invention belongs to a gas analysis sample transmission pipeline, and particularly relates to an analysis sample transmission pipeline structure with a heating function.
Background
Along with the rapid development of industrialization and urbanization and the continuous increase of energy consumption, various volatile organic compounds with various and complex components exist in the atmospheric environment, the collection and detection of the volatile organic compounds in the air are important links in environmental management, no matter the collection of samples is completed, the connection with a detection instrument, or the internal gas circuit pipeline of a machine needs to eliminate sample adsorption caused by pipeline materials, condensation caused by temperature or cross contamination caused by flowing of different samples, so that the inner wall of a sample transmission pipeline adopts a metal pipeline subjected to inerting treatment and keeps warm or heats the transmission pipeline.
At present, most of the heat preservation of the gas circuit pipelines is realized by coating a heating material on the outside of the pipelines to heat the pipelines or enabling the pipelines to penetrate through a block body to heat the block body, and the heat of the block body is conducted to the pipelines by utilizing the contact of the pipelines and the block body. Because the contact area of the heating material cladding on the pipeline is limited, the pipeline can be heated unevenly, the problem of uneven heating can be avoided by adopting the heating block to conduct heat, heat loss can be caused, a large amount of space is occupied, and the pipeline layout is not facilitated. Therefore, the heat preservation and heating effects of the pipeline can be influenced by the coating of the heating material on the outer part of the pipeline or the conduction of the heating block due to respective limitations.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an analysis sample transmission pipeline structure with a heating function, which can ensure the sealing property of the whole gas circuit, realize the isolation and insulation of the required heating pipeline, directly heat the fluid in the valve by using the resistance value of the transmission pipeline to apply pressure to proper voltage as a direct heating medium without depending on additional heating conduction, and improve the heating and transmission efficiency to the maximum extent.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an analysis sample transmission line structure with heating function, includes transmission line and connects two at least high temperature airtight insulating joint on transmission line respectively, and every high temperature airtight insulating joint is including being hollow switching post, connector and pipe mounting, the switching post is high temperature resistant insulating inert material, and connector and pipe mounting are metal material, and a pair of connector is connected respectively in the both sides of switching post, and a pair of pipe mounting sets firmly respectively on the both ends that transmission line need dock to link to each other in order to dock the intercommunication through the connector of pipe mounting and homonymy.
The adapter column both ends are equipped with the external screw thread, and the centre is equipped with the spacer ring, the connector has assorted internal thread.
The pipe fixing piece inner side end is provided with an external thread matched with the connector, a sealing washer is further sleeved on the air pipe located on the pipe fixing piece inner side, and the sealing washer is pressed in the port of the switching column through the pipe fixing piece.
The ports on the two sides of the adapter are tapered holes, and the sealing gaskets are provided with matched conical surfaces.
The diameter of the through hole between the conical holes of the adapter column is equal to the inner diameter of the air pipe.
The sealing washer is made of metal materials.
The analysis sample transmission pipeline structure with the heating function has the following advantages:
1. the adapter column is made of high-temperature-resistant insulating inert materials, so that two connectors opposite to the inner sides of two adjacent high-temperature air-tight insulating connectors on the transmission pipeline are electrified, the transmission pipeline between the connectors can be directly heated, and the connectors are insulated from the outer pipeline;
2. the connector, the pipe fixing screw and the sealing washer are all made of metal materials, the adapter column is made of high-temperature-resistant materials, and the whole set of connector can be kept in a high-temperature state for a long time;
3. the adapter column is made of a high-temperature-resistant insulating inert material, so that pipeline pollution caused by adsorption is effectively avoided while pipeline heating is realized;
4. the connector adopts threaded connection with the switching post, and pipe set screw passes through threaded connection with the connector, and seal ring conical surface and the cooperation of switching post bell mouth have reduced the dead volume when guaranteeing the leakproofness of transmission pipeline.
Drawings
The invention is described in detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic view illustrating a heating operation of a structure of an analysis sample transmission line having a heating function according to the present invention.
Fig. 2 is an exploded view of the high temperature, hermetically insulated joint of the present invention.
Figure 3 is a schematic cross-sectional view of a high temperature, hermetically insulated joint of the present invention.
Detailed Description
The structure of the analysis sample transmission pipeline with the heating function of the invention is shown in fig. 1-3, and comprises a transmission pipeline 5 and at least two high-temperature airtight insulating joints 10 respectively connected to the transmission pipeline 5, wherein a pair of high-temperature airtight insulating joints 10 is shown in fig. 1, the transmission pipeline 5 is divided into three sections, namely a middle section and two side sections, and the three sections are mutually communicated through the two high-temperature airtight insulating joints 10, wherein the middle section is a heatable section. Certainly, can also install more high temperature airtight insulating joint 10 according to the demand of heatable section additional, the pipeline between two adjacent high temperature airtight insulating joint 10 all can heat or keep warm, and the position of installing additional can be according to the corresponding selection of needs heating length.
Every airtight insulating joint of high temperature 10 all includes and is hollow switching post 1, connector 2 and pipe mounting 4, wherein, switching post 1 adopts like polyimide, polyphenyl ester polytetrafluoroethylene combined material, PEEK polytetrafluoroethylene combined material etc. high temperature resistant insulating inert material, connector 2 then adopts metal material with pipe mounting 4, a pair of connector 2 is connected respectively in the both sides of switching post 1, and a pair of pipe mounting 4 sets firmly respectively on the both ends that transmission pipeline 5 need dock, and link to each other with the connector 2 of homonymy through pipe mounting 4, and through middle cavity switching post 1, finally realize the butt joint intercommunication of airtight insulating joint of high temperature 10 both sides transmission pipeline 5. A section of transmission pipeline 5 can be divided into two sections of pipelines with independent resistance values and without conduction through a transfer column 1. Meanwhile, the connector 2 is connected with a metal material, so that adsorption can be avoided while high-temperature heating of the pipeline is allowed, and repeatability and accuracy of a sample are guaranteed. As shown in fig. 1, when heating or heat-preserving operation is required, a certain section of the transmission pipeline 5 to be heated is insulated and separated from the gas paths on two sides thereof by two adjacent high-temperature gas-tight insulating joints 10, and then the two sections of the pipeline are respectively connected to two connectors 2 opposite to the inner sides of the two high-temperature gas-tight insulating joints 10 through two conducting strips, and the whole section of the pipeline between the two connectors 2 (shown in a dotted frame in fig. 1) can be heated or heat-preserved by directly applying voltage to the two connectors 2, so that the pipeline on the outer sides of the two high-temperature gas-tight insulating joints 10 can be ensured to be non-conductive and non-heated by the insulating and separating effect of the adapter column 1. The heating device is used for replacing a common heating belt winding and heating block heat conduction heating mode, and can uniformly heat the whole pipeline to be heated and ensure the compact structure of the pipeline.
The connection form of the high-temperature airtight insulating joint 10 can specifically adopt the following threaded connection mode:
1 both ends of switching post are equipped with the external screw thread, and the centre is equipped with spacer ring 11, connector 2 has the assorted internal thread, and the design of spacer ring 11 can be better two connectors 2 of assurance separate insulating. And the pipe fixing part 4 inboard end also has the external screw thread that matches with connector 2, and is located the trachea 5 of pipe fixing part 4 inboard and still overlaps and be equipped with seal ring, and seal ring is pressed in the port of switching post 1 by pipe fixing part 4. Preferably, the ports on the two sides of the adapter column 1 are both tapered holes, and the sealing washer has a matched tapered surface. The air channel connection is ensured to have good air tightness by adopting threaded connection and conical surface extrusion of the sealing washer, and the structure is simple and convenient to install. Similarly, the sealing washer is made of metal material.
In addition, the diameter of the through hole 12 between the inner conical holes of the adapter column 1 can adopt the design equal to the inner diameter of the air pipe 5, so that the problem of dead volume caused by connection can be effectively avoided.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.
Claims (6)
1. The utility model provides an analysis sample transmission line structure with heating function, include transmission line and connect two at least high temperature airtight insulating joint on transmission line respectively, every high temperature airtight insulating joint is including being hollow switching post, connector and pipe mounting, the pipe mounting is metal material, a pair of connector is connected respectively in the both sides of switching post, a pair of pipe mounting sets firmly respectively on the both ends that transmission line needs the butt joint, and link to each other in order to dock its characterized in that through the connector of pipe mounting and homonymy: the adapter column is made of a high-temperature-resistant insulating inert material, and the connector is made of a metal material; and directly applying voltage to the two connectors opposite to the inner side and utilizing the resistance value of the transmission pipeline to realize the integral heating or heat preservation of the pipeline between the two connectors opposite to the inner side.
2. The analytical sample transport conduit structure with heating function according to claim 1, wherein: the adapter column both ends are equipped with the external screw thread, and the centre is equipped with the spacer ring, the connector has assorted internal thread.
3. The analytical sample transport conduit structure with heating function according to claim 2, wherein: the pipe fixing piece is provided with a connecting head, and the inner side end of the pipe fixing piece is provided with an external thread matched with the connecting head.
4. The analytical sample transport conduit structure with heating function according to claim 3, wherein: the ports on the two sides of the adapter are tapered holes, and the sealing gaskets are provided with matched conical surfaces.
5. The analysis sample transmission pipeline structure with a heating function according to claim 4, wherein: the diameter of the through hole between the conical holes of the adapter column is equal to the inner diameter of the air pipe.
6. The analytical sample transport conduit structure with heating function according to claim 4, wherein: the sealing washer is made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640658.4A CN111750198B (en) | 2020-07-06 | 2020-07-06 | Analysis sample transmission pipeline structure with heating function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640658.4A CN111750198B (en) | 2020-07-06 | 2020-07-06 | Analysis sample transmission pipeline structure with heating function |
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| Publication Number | Publication Date |
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| CN111750198A CN111750198A (en) | 2020-10-09 |
| CN111750198B true CN111750198B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010640658.4A Active CN111750198B (en) | 2020-07-06 | 2020-07-06 | Analysis sample transmission pipeline structure with heating function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418140A (en) * | 2021-07-09 | 2021-09-21 | 江苏微导纳米科技股份有限公司 | Special gas pipeline assembly and powder coating equipment |
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| US5308122A (en) * | 1992-07-06 | 1994-05-03 | Tylok International, Inc. | Tube coupling |
| CN201723870U (en) * | 2010-04-01 | 2011-01-26 | 丁健 | Sealless oil pipe joint |
| CN201964059U (en) * | 2010-11-08 | 2011-09-07 | 新疆天业（集团）有限公司 | Micro-irrigation pipe connector |
| KR101087687B1 (en) * | 2009-04-08 | 2011-11-30 | 박영훈 | Joint assembly for pipe |
| CN202118408U (en) * | 2011-06-13 | 2012-01-18 | 武汉思源船舶配套设备有限公司 | Electric insulation threaded connector for vessel |
| CN202182272U (en) * | 2011-07-08 | 2012-04-04 | 康庆刚 | Polyfluortetraethylene cathode protection insulating tube joint |
| CN207298152U (en) * | 2017-09-29 | 2018-05-01 | 大连长之琳科技发展有限公司 | A kind of flareless pipeline connecting parts |
| CN207378491U (en) * | 2017-09-22 | 2018-05-18 | 上海东缘机电设备有限公司 | Small-sized low temperature connector through walls |
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
| CN210165045U (en) * | 2019-04-17 | 2020-03-20 | 青岛沃富新能源科技有限公司 | Pipe clamp assembly capable of preventing thermal short circuit of ground source heat pump system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192379A (en) * | 2011-05-27 | 2011-09-21 | 山东优路通汽配有限公司 | Pipeline heating connector |
-
2020
- 2020-07-06 CN CN202010640658.4A patent/CN111750198B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308122A (en) * | 1992-07-06 | 1994-05-03 | Tylok International, Inc. | Tube coupling |
| KR101087687B1 (en) * | 2009-04-08 | 2011-11-30 | 박영훈 | Joint assembly for pipe |
| CN201723870U (en) * | 2010-04-01 | 2011-01-26 | 丁健 | Sealless oil pipe joint |
| CN201964059U (en) * | 2010-11-08 | 2011-09-07 | 新疆天业（集团）有限公司 | Micro-irrigation pipe connector |
| CN202118408U (en) * | 2011-06-13 | 2012-01-18 | 武汉思源船舶配套设备有限公司 | Electric insulation threaded connector for vessel |
| CN202182272U (en) * | 2011-07-08 | 2012-04-04 | 康庆刚 | Polyfluortetraethylene cathode protection insulating tube joint |
| CN207378491U (en) * | 2017-09-22 | 2018-05-18 | 上海东缘机电设备有限公司 | Small-sized low temperature connector through walls |
| CN207298152U (en) * | 2017-09-29 | 2018-05-01 | 大连长之琳科技发展有限公司 | A kind of flareless pipeline connecting parts |
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
| CN210165045U (en) * | 2019-04-17 | 2020-03-20 | 青岛沃富新能源科技有限公司 | Pipe clamp assembly capable of preventing thermal short circuit of ground source heat pump system |
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| CN111750198A (en) | 2020-10-09 |
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