CN104514927A - Differential pressure measurement structure easy to detach - Google Patents
Differential pressure measurement structure easy to detach Download PDFInfo
- Publication number
- CN104514927A CN104514927A CN201310457275.3A CN201310457275A CN104514927A CN 104514927 A CN104514927 A CN 104514927A CN 201310457275 A CN201310457275 A CN 201310457275A CN 104514927 A CN104514927 A CN 104514927A
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- CN
- China
- Prior art keywords
- sealing head
- sealing
- differential pressure
- welding
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/06—Sealing by means of a swivel nut compressing a ring or sleeve
Abstract
The invention discloses a differential pressure measurement structure easy to detach. The differential pressure measurement structure comprises a front sealing head which sleeves an inner pipe; one end of the front sealing head is used for connecting with an outer pipe; the other end of the front sealing head is connected with a rear sealing head through a nut; the rear sealing head comprises a sealing ball head and an outlet pipe of the inner pipe; the connecting end surface of the front sealing head and the rear sealing head is provided with a conical surface which is matched with the sealing ball head. Compared with the welding mode in the prior art, the welding operation is not required by the sealing structure and accordingly the requirements for the technical level of workers are not required, the problem that the welding quality relies on the technical level of the workers in the traditional welding structure is solved, the quality of products can be consistent, the sealing effect can be ensured, and the problems that the inner pipe is blocked and the drainage is not smooth due to the complete penetration inner pipe in the welding process are solved.
Description
Technical field
The present invention relates to the quick detachable measurement structure measuring inner cavity chamber's pressure reduction inside and outside High Temperature High Pressure in chamber pressure container, specifically a kind of easily detachable differential pressure measurement structure.
Background technique
In the thermal-hydraulic experiment of some High Temperature High Pressure, experimental section is made up of the outer chamber of pressure-bearing and the inner cavity chamber that comprises experimental subjects, test medium flows in the runner of inner cavity chamber, outer chamber is the slough be communicated with inner cavity chamber, little pressure reduction is there is between inner cavity chamber and outer chamber, due to experiment purpose or for the monitoring to experimental subjects hydraulic regime, need to measure the pressure reduction in inner cavity chamber, generally the some differential pressure measurement point Stainless Steel Tubes needed are introduced on the impulse dish between inner cavity chamber and outer chamber, lead to outside outer chamber by the pressure inlet tube that impulse dish is installed through flange, flange forms the sleeve pipe be made up of interior pressure inlet tube and outer tube outward, inner tube pressure is introduced while instrument carries out measuring, need to bear high-pressure section to outer sleeve to seal, as Fig. 1, current encapsulating method is welded with interior pipe by outer sleeve, by welding to sealing between outer tube and interior pipe and being connected to pressure inlet tube, then inner tube pressure is introduced instrumentation, but the method is higher to welding requirements, interior pipe is easily blocked during welding, need soldered splice excision just can pull down outer sleeve and interior pipe during dismounting simultaneously, larger inconvenience is brought to installation and removal.
Summary of the invention
The object of the present invention is to provide a kind of easily detachable differential pressure measurement structure, solve the problem that the current welding requirements brought by the impulse encapsulating method that outer sleeve welds with interior pipe is higher, easily block interior pipe when welding, reach the object be easy for installation and removal.
Object of the present invention is achieved through the following technical solutions:
A kind of easily detachable differential pressure measurement structure, comprise suit front sealing head on inner pipe, one end of front sealing head is used for being connected with outer tube, the other end is connected with rear sealing head by nut, rear sealing head comprises the fairlead of a sealing bulb and interior pipe, and the end face be connected with rear sealing head at front sealing head is provided with the conical surface matched with sealing bulb.In the production process of reality, through a large amount of repetition processes, claimant finds that current differential pressure sealing means exists certain problem: first higher to the requirement of welding technique, even the very brilliant old technician of welding technique also may go wrong, and due to diameter of inner pipe less, in welding process, the easy through welding of interior pipe results in blockage, the problem that impulse goes wrong, based on these Problems existing, claimant is through carefully studying and repeatedly conceiving, invent this programme to be used for overcoming the above problems, during use, one of them port of front sealing head welds with the outer tube of pressure inlet tube, the interior pipe box of pressure inlet tube is contained in front sealing head, the internal diameter of front sealing head is from outer tube reducing gradually toward the other end, until its internal diameter and interior pipe match, but there is requisite fit up gap, gap between inner and outer tubes is reduced, then front sealing head and rear sealing head are by nut fixed seal connection, wherein, sealing head comprises two parts: sealing bulb, and fairlead, wherein the internal diameter of fairlead and interior pipe match, it is as the mouth of pipe guiding interior pipe to export, an end face of nut is closed, the end face closed is provided with a through hole, fairlead is through this through hole, front sealing head is provided with the outside thread matched with the internal thread of nut, sealing head inside before nut is provided with the conical surface of indent, at the end of fairlead, sealing bulb is installed, sealing bulb and cone match can complete ball face sealing, work as rotating nut, make it and front sealing head is locked time, sealing bulb and cone match, complete high pressure sealing, work as rotating nut, make it and front sealing head unclamps time, be convenient to the replacing of impulse structure, so, for welding manner of the prior art, sealing configuration of the present invention does not need to carry out welding operation, to the technical merit not requirement of workman, solve welding quality in conventional seals structure and depend on the problem of welder's technical merit, make the uniform quality of product, sealing effect can be protected, and solves the problem that pipe in the easy through welding in welding procedure causes interior blockage drainage obstructed.
Described front sealing head being provided with the annular recess relative with sealing bulb, in this groove, seal ring being installed.In order to seal the pressure reduction of inner and outer pipes, front sealing head arranges an annular recess, annular recess is connected with the conical surface, interior pipe is through after annular recess, seal ring is enclosed in interior pipe arranged outside one, in the process of nut screwing clamping, sealing bulb can withstand seal ring, oppresses sealing ring deformation and the space of filling in annular recess; The sealing that can realize well between inner and outer pipes is sealed by the compressing of ball face sealing and seal ring.
Described seal ring is made up of teflon.Further, teflon is by the polymeric compound of tetrafluoroethylene through being polymerized, there is excellent chemical stability, corrosion resistance, sealing, height lubricate not viscosity, electrical insulating property and good anti-aging endurance, although it is conventional material, but also do not apply in the Experiment of Thermophysics field of nuclear industry, the present invention adopts it to be utilize the water that seals for the little characteristic of inside and outside differential pressure as seal ring, creative improvement.
The present invention compared with prior art, has following advantage and beneficial effect:
A kind of easily detachable differential pressure measurement structure of 1 the present invention, for welding manner of the prior art, sealing configuration of the present invention does not need to carry out welding operation, to the technical merit not requirement of workman, solve welding quality in conventional seals structure and depend on the problem of welder's technical merit, make the uniform quality of product, sealing effect can be protected, and solves the problem that pipe in the easy through welding in welding procedure causes interior blockage drainage obstructed;
A kind of easily detachable differential pressure measurement structure of 2 the present invention, front sealing head arranges an annular recess, annular recess is connected with the conical surface, interior pipe is through after annular recess, seal ring is enclosed in interior pipe arranged outside one, in the process of nut screwing clamping, sealing bulb can withstand seal ring, oppresses sealing ring deformation and the space of filling in annular recess; Low voltage difference sealing between the high pressure sealing of outer tube and inner and outer pipes can be realized well by the compressing sealing of ball face sealing and seal ring;
A kind of easily detachable differential pressure measurement structure of 3 the present invention, the onset simultaneously of two seals structure, this sealing configuration is arranged on distance high-temperature more than cylindrical shell 200mm, belong to slough in pressure inlet tube, temperature can be down to the scope of below seal ring invalid temperature, thus this structure can to pressure 17.5MPa, the medium differential pressure that temperature is 350 DEG C is measured, reach simple installation simultaneously, be easy to dismounting, and impulse structure can reusable object.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is pressure inlet tube sealed structural representation of the prior art;
Fig. 2 is structural representation of the present invention.
Mark and corresponding component title in accompanying drawing:
1-front sealing head, 2-seal ring, 3-rear sealing head, 31-seals bulb, 32-fairlead, 4-nut, 5-interior pipe.
Embodiment
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment
As shown in Figure 2, a kind of easily detachable differential pressure measurement structure of the present invention, comprise the front sealing head 1 be sleeved on interior pipe 5, front sealing head 1 has two end faces, one of them end face is used for welding with outer tube, another end face is connected with rear sealing head 3, front sealing head 1 inside is cavity structure, the diameter of its cavity reduces gradually from outer tube one end, be decreased to the cavity keeping one section of this diameter after matching with interior pipe 5 diameter, then expand in front sealing head 1 and form annular recess, then internal diameter continues expand and form the conical surface, rear sealing head 3 comprises sealing bulb 31, and the fairlead 32 of interior pipe 5, intracavity diameter and the interior pipe 5 of fairlead 32 match, sealing bulb 31 there is spherical seal surface, sealing bulb 31 is provided with and matches with interior pipe 5 and the hole of inner space with fairlead 32, then interior pipe passes sealing bulb 31 through the internal cavities of front sealing head 1, fairlead 32, seal ring is set with in annular recess, seal ring adopts teflon to make, the sealing sphere of bulb 31 and the conical surface of front sealing head 1 match, outside thread is had in the arranged outside of front sealing head 1, also comprise nut 4, one end of nut 4 is closed, this closed end is provided with through hole, drainage tube 32 is through this through hole, sealing bulb 31 is between front sealing head 1 and the end face of nut 4, rotating nut, make sealing bulb 31 close to seal ring 2, sealing bulb 31 crush seal ring 2, seal bulb 31 simultaneously and form ball face sealing with cone match, complete the sealing between internal pipe 5 and outer tube.
Above-described embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. an easily detachable differential pressure measurement structure, it is characterized in that: comprise the front sealing head (1) be sleeved on interior pipe (5), one end of front sealing head (1) is used for being connected with outer tube (6), the other end is connected with rear sealing head (3) by nut (4), rear sealing head (3) comprises the fairlead (32) of sealing bulb (31) and interior pipe (5), and the end face be connected with rear sealing head (3) at front sealing head (1) is provided with the conical surface matched with sealing bulb (31).
2. the easily detachable differential pressure measurement structure of one according to claim 1, is characterized in that: on described front sealing head (1), being provided with the annular recess relative with sealing bulb (31), being provided with seal ring (2) in this groove.
3. the easily detachable differential pressure measurement structure of one according to claim 2, is characterized in that: described seal ring (2) is made up of teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457275.3A CN104514927B (en) | 2013-09-30 | 2013-09-30 | A kind of quick detachable differential pressure measurement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310457275.3A CN104514927B (en) | 2013-09-30 | 2013-09-30 | A kind of quick detachable differential pressure measurement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514927A true CN104514927A (en) | 2015-04-15 |
| CN104514927B CN104514927B (en) | 2017-08-08 |
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ID=52790637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310457275.3A Active CN104514927B (en) | 2013-09-30 | 2013-09-30 | A kind of quick detachable differential pressure measurement structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104514927B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972327A (en) * | 2016-05-31 | 2016-09-28 | 安徽万瑞冷电科技有限公司 | Novel membrane separator sealing device |
| CN107705863A (en) * | 2017-10-16 | 2018-02-16 | 中国核动力研究设计院 | A kind of high temperature and pressure experiment body impulse seal and installation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3104974A1 (en) * | 1981-02-12 | 1982-09-16 | U.I. Lapp Kg, 7000 Stuttgart | Insert for screwed connections |
| CN1095805A (en) * | 1992-11-30 | 1994-11-30 | 麦卡伯工业有限公司 | A kind of fixing device |
| EP0579125B1 (en) * | 1992-07-17 | 1995-10-18 | Hermann Kleinhuis GmbH. & Co. KG | Plastic screw fitting for entry and extension, sealing and strain relief of cables, ducts or hoses |
| CN102889432A (en) * | 2012-10-11 | 2013-01-23 | 武汉博莱科技发展有限责任公司 | Metal vacuum cavity electric insulation sealing device |
| CN103216680A (en) * | 2013-04-24 | 2013-07-24 | 苏州赛智达智能科技有限公司 | Seal joint of lead wire in liquefied natural gas (LNG) container |
-
2013
- 2013-09-30 CN CN201310457275.3A patent/CN104514927B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3104974A1 (en) * | 1981-02-12 | 1982-09-16 | U.I. Lapp Kg, 7000 Stuttgart | Insert for screwed connections |
| EP0579125B1 (en) * | 1992-07-17 | 1995-10-18 | Hermann Kleinhuis GmbH. & Co. KG | Plastic screw fitting for entry and extension, sealing and strain relief of cables, ducts or hoses |
| CN1095805A (en) * | 1992-11-30 | 1994-11-30 | 麦卡伯工业有限公司 | A kind of fixing device |
| CN102889432A (en) * | 2012-10-11 | 2013-01-23 | 武汉博莱科技发展有限责任公司 | Metal vacuum cavity electric insulation sealing device |
| CN103216680A (en) * | 2013-04-24 | 2013-07-24 | 苏州赛智达智能科技有限公司 | Seal joint of lead wire in liquefied natural gas (LNG) container |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972327A (en) * | 2016-05-31 | 2016-09-28 | 安徽万瑞冷电科技有限公司 | Novel membrane separator sealing device |
| CN107705863A (en) * | 2017-10-16 | 2018-02-16 | 中国核动力研究设计院 | A kind of high temperature and pressure experiment body impulse seal and installation method |
| CN107705863B (en) * | 2017-10-16 | 2018-12-18 | 中国核动力研究设计院 | A kind of high temperature and pressure experiment ontology impulse seal and installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514927B (en) | 2017-08-08 |
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