CN205027476U - Inner tube fluid pressure measuring device of multilayer pipeline - Google Patents
Inner tube fluid pressure measuring device of multilayer pipeline Download PDFInfo
- Publication number
- CN205027476U CN205027476U CN201520790997.5U CN201520790997U CN205027476U CN 205027476 U CN205027476 U CN 205027476U CN 201520790997 U CN201520790997 U CN 201520790997U CN 205027476 U CN205027476 U CN 205027476U
- Authority
- CN
- China
- Prior art keywords
- measuring tube
- layer
- pipeline
- piping
- internal layer
- 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.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an inner tube fluid pressure measuring device of multilayer pipeline has solved mainly among the prior art that the double -deck inner tube of multilayer pipeline even carries out the pressure sample and interior intraduct fluid pressure draws inconvenient problem. The utility model discloses an one end runs through the multilayer pipeline and surveys buret with the inlayer of inlayer pipeline intercommunication in the multilayer pipeline, cup joints the outer buret of survey on buret is surveyed to the inlayer, the outer one end of surveying buret runs through the outer layer pipeline in the multilayer pipeline and rather than seal welded structure as an organic whole, this inlayer is surveyed buret's outer wall and is connected with multilayer seal for pipe joints through " O " type sealing washer, the outer buret's of survey the other end then is connected with the other end that buret was surveyed to the inlayer through rear portion seal assembly. The utility model has the advantages of safe firm, dependable performance, simple structure, technical maturity, cost are lower, long service life, dismantlement are convenient.
Description
Technical field
The utility model relates to a kind of device for pressure measurement, and what be specifically related to is the interior pipe fluid device for pressure measurement of multi-layer piping.
Background technology
Hydrodynamic pressure in common individual layer pipeline is measured, the common pressure obtaning device of current employing is in the punching of measurement tube wall place, with pressure pipe, hydrodynamic pressure is guided in the pressure tap of pressure unit, fluid enters into the entrance of pressure unit by pressure pipeline, the voltage dependent resistor (VDR) of its inside changes, export electric signal, by linearly calculating fluid force value now.
Conventional device for pressure measurement is the design not needing too much to consider pressure obtaning device, because industrial hydrodynamic pressure is measured, its form mostly is directly welding or is connected to pipeline external with valve.About how, pipe in bilayer even multi-layer piping is carried out to the design of the pressure obtaning device of pressure samples is rare to be mentioned, because the internally fluid of pipe, this pressure-measuring-point is positioned on the pipe of multi-layer piping, because the inside of interior pipe and outside have fluid to flow through, and common individual layer fluid line does not have outer tube, so directly perforate pressure cannot be carried out with traditional metering system.Thus, for bilayer even multi-layer piping, how designing pressure obtaning device and how being drawn by internal tube hydrodynamic pressure is a technological difficulties.
Utility model content
The interior pipe that the purpose of this utility model is to solve double-deck even multi-layer piping in prior art carries out the problem that pressure samples and internal tube hydrodynamic pressure draw inconvenience, provides a kind of pressure convenient and can ensure the interior pipe fluid device for pressure measurement of the independently multi-layer piping of hydrodynamic pressure border in interior pipe and outer tube.
For solving above-mentioned shortcoming, the technical solution of the utility model is as follows:
The interior pipe fluid device for pressure measurement of multi-layer piping, comprise one end run through multi-layer piping and with the internal layer measuring tube of the innermost layer pipeline communication in multi-layer piping, be socketed in the outer measuring tube on internal layer measuring tube; One end of described outer measuring tube is run through the outermost layer pipeline in multi-layer piping and is structure as a whole with its seal welding, the outer wall of this internal layer measuring tube is tightly connected by " O " RunddichtringO and multi-layer piping, and the other end of described outer measuring tube is then connected with the other end of internal layer measuring tube by rear seal assembly;
Described rear seal assembly is by having through hole and for the sealing block in space between shutoff internal layer measuring tube and outer measuring tube, and the gland nut composition that will be pressed abd fixed on for sealing block on outer measuring tube termination, the diameter of described through hole is identical with the external diameter of internal layer measuring tube, and sealing block is extended by the through hole on sealing block in one end of this internal layer measuring tube.
By the internal layer measuring tube in the utility model, fluids within pipes is delivered to the external world, then the force value of inner layer pipe can be calculated after being connected with pressure unit.
By above-mentioned with internal layer measuring tube with the coordinating of outer internal layer measuring tube, and pass through the setting of rear seal assembly, effectively the fluid isolation between inner layer pipe and outer layer pipe is opened, and then effectively reach hydrodynamic pressure border independently effect in the interior pipe of guarantee and outer tube; Arranged by the independence on hydrodynamic pressure border between adjacent two layers pipeline, outer layer pipe hydrodynamic pressure effectively can be avoided to impact internal layer pipeline pressure, and then effectively accurately measure the pressure of interior pipe fluid, ensure the accuracy measured.
By utilizing the utility model to carry out pressure test at the internal tube fluid of double-skin duct, pressure scope relates to the four direction on same surface level.Shown by the result of this test, the utility model stable performance, reproducible and error is little, be suitable for very much the pressure survey of industrial interior pipe fluid.
As optimally set-up mode, in the utility model, internal layer measuring tube and the mode of being tightly connected between outer measuring tube and multi-layer piping have two kinds.
The first is: described outer measuring tube one end elastic conjunction is also tightly connected with it by the mode of welding on the outermost layer pipeline of multi-layer piping.The second is: described internal layer measuring tube one end is tightly connected by " O " RunddichtringO and multi-layer piping.
When being tightly connected by the first, the utility model effectively can not only realize the sealing of multi-layer piping internal flow, facilitates the extraction of fluid media (medium), meanwhile, and can also strengthen the securely performance between outer measuring tube and multi-layer piping.When being tightly connected by the second, the effect not only reaching sealing and draw, this set-up mode also facilitates insertion and the taking-up of internal layer measuring tube, and then convenient installation, maintenance and maintenance.
The mode of being tightly connected in this utility model between measuring tube and pipeline must adopt this two kinds of modes that are tightly connected simultaneously.The outer measuring tube diameter of outer layer pipe is comparatively large, and adopt the mode of welding and being connected with sealing block, its fundamental purpose is to realize sleeve pipe function, is convenient to internal layer measuring tube to run through; The internal layer measuring tube of inner layer pipe is sufficiently little could be facilitated, accurately pressure, and thus the measuring tube of inner layer pipe must adopt " O " RunddichtringO to seal.
In order to reach sealing effectiveness best, the utility model has also done further restriction to above-mentioned two kinds of modes of being tightly connected respectively.That is, when sealing effectiveness is first kind of way, described outer measuring tube adopts the form argon arc welding of fillet weld to weld with the outermost layer of multi-layer piping; When sealing effectiveness is the second way, described multi-layer piping is provided with annular groove with internal layer measuring tube junction, described " O " RunddichtringO is arranged on this annular groove.
In order to further reach sealing effectiveness better, between described sealing block and gland nut and between sealing block and outer measuring tube, be provided with packing washer.
The conveniently operation of operating personnel, the other end of described outer measuring tube is provided with external thread, described gland nut is provided with the internal thread matched with this external thread.
As optimally set-up mode, the cross section of described internal layer measuring tube and outer measuring tube is concentric circles.
Further, described sealing block is also provided with sealed cistern.
The utility model compared with prior art, has the following advantages and beneficial effect:
1, the mode that combined with internal layer measuring tube by outer measuring tube of the utility model, effectively pressure is carried out to the innermost layer pipe fluid pressure of multi-layer piping, and then ensure that the mutual independence between inner layer pipe fluid pressure and outer layer pipe fluid pressure border;
2, by setting of the present utility model, effectively ensure that the accurate of measurement result; Meanwhile, the utility model can use under fluid has larger pressure, and can keep high-precision state for a long time, easy to use, reliable;
The advantages such as 3, the utility model has securely, dependable performance, structure are simple, technical maturity, cost are lower, long service life, convenient disassembly.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model.
Fig. 2 is the structural representation of gland nut in embodiment 1.
Fig. 3 is the structural representation of sealing block in the utility model.
Fig. 4 is the structural representation of gland nut position in embodiment 3.
Wherein, the parts name that in figure, Reference numeral is corresponding is called:
1-multi-layer piping, 2-internal layer measuring tube, the outer measuring tube of 3-, 4-" O " RunddichtringO, 5-sealing block, 6-gland nut.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
The interior pipe fluid device for pressure measurement of multi-layer piping, as shown in Figure 1, Figure 2 and Figure 3, comprise one end run through multi-layer piping 1 and with the internal layer measuring tube 2 of the innermost layer pipeline communication in multi-layer piping 1, be socketed in the outer measuring tube 3 on internal layer measuring tube 2; One end of described outer measuring tube 3 is run through the outermost layer pipeline in multi-layer piping 1 and is structure as a whole with its seal welding, the outer wall of this internal layer measuring tube 2 is tightly connected by " O " RunddichtringO 4 and multi-layer piping 1, and the other end of described outer measuring tube 3 is then connected with the other end of internal layer measuring tube 2 by rear seal assembly; Described rear seal assembly is by having through hole and for the sealing block 5 in space between shutoff internal layer measuring tube 2 and outer measuring tube 3, and the gland nut 6 be pressed abd fixed on for sealing block 5 on outer measuring tube 3 termination is formed, the diameter of described through hole is identical with the external diameter of internal layer measuring tube 2, and sealing block 5 is extended by the through hole on sealing block 5 in one end of this internal layer measuring tube 2.
In the present embodiment, the number of plies of pipeline is set to two-layer, called after inner layer pipe and outer layer pipe respectively, now, inner layer pipe and outer layer pipe are run through in one end of this internal layer measuring tube, and one end of this internal layer measuring tube and inner layer pipe are tightly connected, be tightly connected with outer layer pipe after outer layer pipe is then run through in this outer measuring tube one end, the other end of this outer measuring tube is then provided with sealing block, sealing block is closely fixed on the end of the other end of outer measuring tube by this gland nut, the other end of this internal layer measuring tube passes the through hole of sealing block and extends gland nut, as shown in Figure 1.
As the preferred set-up mode of one, in the present embodiment, gland nut is provided with internal thread, the end of this outer measuring tube is then provided with the external thread matched with internal thread on this gland nut, sealing block is then arranged between outer measuring tube and gland nut, as depicted in figs. 1 and 2, by this setting, easily and effectively shutoff can be carried out in the gap between inner layer pipe and outer layer pipe, and then effectively ensure the separate of fluid between inner layer pipe inner fluid and ectonexine pipeline, improve accuracy in detection.
As long as in the present embodiment between one end of internal layer measuring tube and inner layer pipe, and all can reach the purpose of this utility model in the state be tightly connected between outer measuring tube and outer layer pipe, but in order to can while being effective, improve properties of the present utility model, thus in the present embodiment, preferred two kinds of connected modes are applied on internal layer measuring tube and outer measuring tube respectively, and concrete set-up mode is as follows:
Diameter due to internal layer measuring tube in the present embodiment is less, thus one end of internal layer measuring tube is as follows with the relation that is tightly connected between inner layer pipe: this inner layer pipe is provided with the hole identical with internal layer measuring tube external diameter with the junction, one end of internal layer measuring tube, this hole is provided with annular groove, this annular groove is provided with " O " RunddichtringO.In the present embodiment, the quantity of this annular groove and " O " RunddichtringO is all preferably set to two, as shown in Figure 1.The end of this internal layer measuring tube is also processed with the less groove of an angle, internal layer measuring tube thus can be made slowly to be inserted in " O " RunddichtringO by outside by the through hole in the middle of sealing block, operate easier.
Because the diameter of outer measuring tube is comparatively large in the present embodiment, be applicable to welding, the relation that is tightly connected thus between outer measuring tube and outer layer pipe is as follows: by elastic conjunction after outer measuring tube cooled with liquid nitrogen in outer layer pipe.Then welded with the weld seam between outer layer pipe the end of outer measuring tube one end, in the present embodiment, weld seam adopts the form of fillet weld, and adopts argon arc welding to weld.The criterion of acceptability welded in the present embodiment is: be as the criterion with nondestructive examination result after welding.
Embodiment 2
The difference of the present embodiment and embodiment 1 is, the present embodiment optimizes the concrete structure of rear seal assembly, and concrete set-up mode is as follows:
Be provided with packing washer between described sealing block and gland nut and between sealing block and outer measuring tube, described sealing block is also provided with sealed cistern,
In the rear end of outer measuring tube, packing washer fits tightly inside and outside sealing block on both sides sealing face, and inside and outside sealing block, both sides are all containing sealed cistern, utilizes the screw thread of gland nut, to gland nut apply external force, by packing washer and sealing block fastening; Effective internally pipe outer annular runner fluid seals.
The utility model adopts sealing block to add the form of packing washer, gland nut is utilized to carry out pretension to sealing block, after pretension, realize the sealing of external fluid better, and then the inside and outside fluid of pipe all has respective pressure boundary in ensureing, achieve interior pipe fluid and external fluid separate.
Embodiment 3
The difference of the present embodiment and embodiment 1 and embodiment 2 is, syndeton in the present embodiment between gland nut from outer measuring tube is different, as shown in Figure 4, the top of the present embodiment ectomesoderm measuring tube is provided with screw rod, this screw rod runs through sealing block and is arranged on the hard gasket above sealing block, by doing work to the gland nut matched with screw rod, and then reach the fastening object of sealing, as shown in Figure 4.
Embodiment 4
The difference of the present embodiment and embodiment 2 is, in the present embodiment, the number of plies of multi-layer piping is set to three layers, and distinguish called after ground floor pipeline, second layer pipeline and third layer pipeline from the inside to the outside respectively, now, the concrete set-up mode of the present embodiment is as follows:
Extend in ground floor pipeline after third layer pipeline, second layer pipeline and ground floor pipeline are run through in the end of described internal layer measuring tube one end, and then convection cell carries out pressure, the outer wall of this internal layer measuring tube and the junction between second layer pipeline and ground floor pipeline all " O " RunddichtringO are tightly connected.
The end, one end of described outer measuring tube then adopts the mode of welding to be connected with third layer seal for pipe joints, realizes sleeve pipe function; The concrete mode of this welding is: the form adopting fillet weld, and adopts argon arc welding to weld.
Described outer measuring tube and the internal layer measuring tube other end are then provided with a rear seal assembly.This rear seal assembly is by having through hole and for the sealing block in space between adjacent two measuring tubes of shutoff, and to be connected with the outer measuring tube other end and gland nut for press seal block forms, the diameter of described through hole is identical with the external diameter of internal layer measuring tube, and the described internal layer measuring tube other end passes the through hole on sealing block and extends gland nut.
Above-described embodiment is only preferred embodiment of the present utility model; restriction not to the utility model protection domain; in every case design concept of the present utility model being adopted, and the change carried out non-creativeness work on this basis and make, all should belong within protection domain of the present utility model.
Claims (8)
1. the interior pipe fluid device for pressure measurement of multi-layer piping, it is characterized in that: comprise one end run through multi-layer piping (1) and with the internal layer measuring tube (2) of the innermost layer pipeline communication in multi-layer piping (1), be socketed in the outer measuring tube (3) on internal layer measuring tube (2); One end of described outer measuring tube (3) is run through the outermost layer pipeline in multi-layer piping (1) and is structure as a whole with its seal welding, the outer wall of this internal layer measuring tube (2) is tightly connected by " O " RunddichtringO (4) and multi-layer piping (1), and the other end of described outer measuring tube (3) is then connected with the other end of internal layer measuring tube (2) by rear seal assembly;
Described rear seal assembly is by having through hole and for the sealing block (5) in space between shutoff internal layer measuring tube (2) and outer measuring tube (3), and gland nut (6) composition that will be pressed abd fixed on for sealing block (5) on outer measuring tube (3) termination, the diameter of described through hole is identical with the external diameter of internal layer measuring tube (2), and sealing block (5) is extended by the through hole on sealing block (5) in one end of this internal layer measuring tube (2).
2. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 1, is characterized in that: one end elastic conjunction of described outer measuring tube (3) is arranged at multi-layer piping (1) and goes up and the mode passing through to weld is tightly connected with it.
3. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 2, is characterized in that: described outer measuring tube (3) adopts the form of fillet weld by the outermost layer pipeline welding of argon arc welding and multi-layer piping (1).
4. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 1, it is characterized in that: described multi-layer piping (1) and internal layer measuring tube (2) junction are provided with annular groove, this internal layer measuring tube (2) is sealedly connected on multi-layer piping (1) by " O " RunddichtringO (4) and annular groove mating reaction.
5. pipe fluid device for pressure measurement in the multi-layer piping according to any one of Claims 1 to 4, is characterized in that: be provided with packing washer between described sealing block (5) and gland nut (6) and between sealing block (5) and outer measuring tube (3).
6. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 5, is characterized in that: the other end of described outer measuring tube (3) is provided with external thread, and (6) are provided with the internal thread matched with this external thread with described gland nut.
7. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 6, is characterized in that: the cross section of described internal layer measuring tube (2) and outer measuring tube (3) is concentric circles.
8. the interior pipe fluid device for pressure measurement of multi-layer piping according to claim 7, is characterized in that: (5) are also provided with sealed cistern to described sealing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790997.5U CN205027476U (en) | 2015-10-14 | 2015-10-14 | Inner tube fluid pressure measuring device of multilayer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790997.5U CN205027476U (en) | 2015-10-14 | 2015-10-14 | Inner tube fluid pressure measuring device of multilayer pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027476U true CN205027476U (en) | 2016-02-10 |
Family
ID=55259999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520790997.5U Active CN205027476U (en) | 2015-10-14 | 2015-10-14 | Inner tube fluid pressure measuring device of multilayer pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341468A (en) * | 2020-03-18 | 2020-06-26 | 中国核动力研究设计院 | Sealing structure and method for installing sensor through two-layer pressure boundary |
| CN112781782A (en) * | 2020-12-28 | 2021-05-11 | 燕山大学 | Device and method for measuring local pressure loss of multi-directional special-shaped pipeline based on SLM (Selective laser melting) forming |
-
2015
- 2015-10-14 CN CN201520790997.5U patent/CN205027476U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341468A (en) * | 2020-03-18 | 2020-06-26 | 中国核动力研究设计院 | Sealing structure and method for installing sensor through two-layer pressure boundary |
| CN112781782A (en) * | 2020-12-28 | 2021-05-11 | 燕山大学 | Device and method for measuring local pressure loss of multi-directional special-shaped pipeline based on SLM (Selective laser melting) forming |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207263399U (en) | A kind of multistation valve airtight detection apparatus | |
| CN102865271A (en) | Detection method and device of internal leakage of hydraulic valve | |
| CN205027476U (en) | Inner tube fluid pressure measuring device of multilayer pipeline | |
| CN106706047A (en) | Underwater multiphase flowmeter based on Ba133 | |
| CN206618449U (en) | Multi-phase flowmeter pressure taking structure under water | |
| CN201021913Y (en) | Pipe or container leakage checking device | |
| CN202708601U (en) | Leakage detecting device for external oil-gas pipeline | |
| CN201991522U (en) | Piston pressure sensor | |
| CN102012297A (en) | Pressure measuring device and method for high temperature medium | |
| CN204788515U (en) | Curved elbow meter of S | |
| CN206258160U (en) | A kind of coal gas instrumentation changes device with online | |
| CN210089917U (en) | Cone sealing reversing shuttle valve | |
| CN208171542U (en) | A kind of movable oil pipe leak detector | |
| CN206399610U (en) | Quick positive pressure leak detection device | |
| CN202002817U (en) | Coal and shale sample pressure-maintaining seal tank | |
| CN205842079U (en) | A kind of through type external pressure straight pipe pressure-balancing type expansion joint of band leakage monitoring function | |
| CN207539489U (en) | A kind of gas meter, flow meter pressure measurement connection flexible pipe | |
| CN206974600U (en) | The safe pressure instrument of oil pipeline | |
| CN110987092A (en) | Multiphase flow vortex shedding flowmeter in pit | |
| CN206362614U (en) | Filler rod with filtering function and high temperature and high pressure gas adsorption instrument | |
| CN206862583U (en) | A kind of offshore oilfield isolating seal assembly sealing property detects instrument | |
| KR20080002624U (en) | An inspecting system of oil storage tank | |
| CN207395855U (en) | A kind of magnetic float liquidlevel meter | |
| CN204831834U (en) | Temperature measurement sampling device that prevents frostbite | |
| CN204788831U (en) | Device that leaks hunting of high -pressure gas spare part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |