CN109855700A - A kind of throw-in type liquid transmitter - Google Patents

A kind of throw-in type liquid transmitter Download PDF

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Publication number
CN109855700A
CN109855700A CN201910100681.1A CN201910100681A CN109855700A CN 109855700 A CN109855700 A CN 109855700A CN 201910100681 A CN201910100681 A CN 201910100681A CN 109855700 A CN109855700 A CN 109855700A
Authority
CN
China
Prior art keywords
shell
steel wire
cable
sealing
throw
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.)
Pending
Application number
CN201910100681.1A
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Chinese (zh)
Inventor
王刚
蔡亚平
周华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mike Sensors Ltd By Share Ltd Xi'an Branch
Original Assignee
Mike Sensors Ltd By Share Ltd Xi'an Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mike Sensors Ltd By Share Ltd Xi'an Branch filed Critical Mike Sensors Ltd By Share Ltd Xi'an Branch
Priority to CN201910100681.1A priority Critical patent/CN109855700A/en
Publication of CN109855700A publication Critical patent/CN109855700A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of throw-in type liquid transmitters, first shell, second shell and the third shell including steel wire cable and being successively tightly connected;Steel wire cable sequentially passes through first shell and second shell, stretches in third shell, and high vacuum silicone grease is filled in first shell, second shell;The setting of the cable entries end of first shell and second shell is provided with sealing device, sealing device is for being tightly connected the junction of steel wire cable corresponding housing, the steel wire of steel wire cable is fixedly connected with second shell, and the conducting wire of steel wire cable passes through second shell and connect with the temperature sensor of third shell end.The transmitter passes through multi-sealed, realize the sealed connection of steel wire cable and shell, steel wire cable is used simultaneously and fixes steel wire and shell, avoid the movement of steel wire cable that medium is caused to penetrate into, solve the problems, such as that existing transmitter cannot be again used in high-temperature medium, with higher is by value and promotional value.

Description

A kind of throw-in type liquid transmitter
Technical field
The present invention relates to transmitter technical field, specially a kind of throw-in type liquid transmitter.
Background technique
Throw-in type liquid transmitter is used to monitor the various parameters in medium, and throw-in type liquid transmitter when in use, is led to It crosses cable fluid level transmitter is dipped vertically into medium, existing throw-in type liquid transmitter, generallys use clamp nut compression Rubber ring makes rubber ring compressive deformation to locking cable line, while realizing the sealing of cable and shell, in order to guarantee to seal Performance generally can also coat sealant, the transmitter of such locking and sealing means on the sealing surface of clamp nut and shell General use temperature is -20 DEG C -80 DEG C, if the temperature of medium is more than above-mentioned temperature range, easily leaks, leaks Reason is mainly to use in high temperature, cryogenic media for a long time, and cable oversheath and sealing ring elasticity is caused to reduce, at this time or Sealing effect variation loosens medium from gap entrance or locking wire, and cable, which is gradually skidded off out of transmitter enclosure body, to be caused to leak. It is not firm when being used especially in high-temperature medium, often there is leakage phenomenon, and then lead to damage of product;Therefore existing investment Formula fluid level transmitter is not available substantially in high-temp liquid environment.
For prior art problem, it is necessary to design a kind of throw-in type liquid transmitter used under high temperature environment.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of high temperature resistant throw-in type liquid transmitter, by more Steel wire cable line is fixed in road locking mechanism, guarantees the protective performance of the throw-in type liquid transmitter at high temperature, makes it Normal use is remained in high-temperature medium.
The present invention is to be achieved through the following technical solutions:
A kind of throw-in type liquid transmitter, first shell, the second shell including steel wire cable and being successively tightly connected With third shell;Steel wire cable sequentially passes through first shell and second shell, stretches in third shell, first shell, second High vacuum silicone grease is filled in shell;
The cable entries end of first shell and second shell is provided with sealing device, and sealing device is for making steel wire cable The junction of corresponding housing is tightly connected, and the steel wire of steel wire cable is fixedly connected with second shell, and the conducting wire of steel wire cable passes through Second shell is connect with the signal processor of third shell end.
Preferably, the sealing device includes sealing nut, washer and rubber ring;
The rubber ring is tapered structure, and rubber ring is fitted in first shell, and the big end of rubber ring is located at corresponding housing End, washer is arranged in the top of rubber ring, and sealing nut is connect by screw thread with corresponding housing, and screwing hermetic nut can Make rubber ring compressive deformation, steel wire cable sequentially passes through sealing nut, washer and rubber ring.
Preferably, the cable entries end of the second shell is provided with hollow connecting column, and connecting column protrudes into first shell, Washer and rubber ring are fitted in the inner hole of connecting column, and sealing nut is connect by screw thread with connecting column.
Preferably, sealant is coated in the thread joint face of the sealing nut and corresponding housing.
Preferably, cable fixer is provided in the cable exits end of the second shell, the steel wire of steel wire cable is logical Cable fixer is crossed to connect with second shell.
Preferably, the cable fixer includes locking wire top cap and overhead nut;
The locking wire top cap is hollow tapered structure, and the inner wall of second shell is inclined-plane, the inclined-plane and locking wire top cap Outer wall matches, and the steel wire of steel wire cable is arranged between locking wire top cap outer wall and second shell inner wall, and locking wire nut passes through spiral shell Line is connect with second shell, and can compress locking wire top cap.
Preferably, the conducting wire of the steel wire cable passes through locking wire nut and connect with signal processor.
Preferably, the perfusion for high vacuum silicone grease to be perfused just is provided on the side wall of the first shell and second shell Mouthful, closure nut is provided in perfusing hole.
Preferably, sealing ring is provided on the closure nut.
Preferably, the first shell and second shell are connected through a screw thread, second shell and third shell each other by It is threadedly coupled, the threaded connection place passes through welded seal.
Compared with prior art, the invention has the following beneficial technical effects:
This application discloses a kind of throw-in type liquid transmitter, first shell and second shell by sealing device make its with The junction of steel wire cable is tightly connected, and can effectively avoid transmitter from seeping in use using multi-sealing structure Leakage;Secondly, the steel wire of steel wire cable is fixed with second shell at the cable exits end of second shell, steel wire cable is prevented The reason of in use because expanding with heat and contract with cold causes to move, and then leads to the problem of leaking, and improves sealing performance, Secondly, high vacuum silicone grease is perfused in first shell and second shell, make steel wire cable respectively with the after the solidification of high vacuum silicone grease One shell and second shell are fixed, and so that steel wire cable and shell is formed an entirety, while preventing liquid entry into shell, are solved The problem of existing formula fluid level transmitter is easy to appear leakage after working long hours.
Further, sealing nut is set in the end of shell, and tapered rubber ring is installed in the housing, using sealing nut Rubber ring is compressed, realize steel wire cable with can with sealed connection, structure is simple, install convenient.
Further, sealant is coated in the junction of sealing nut and shell, realizes the sealing of sealing nut and shell.
Further, steel wire is fixed by cable fixer, mode is compressed using inclined-plane, ensure that fixed jail Solidity.
Further, the high hollow silicone grease of perfusion, high hollow silicone grease make steel wire cable and shell form one in the housing after solidifying A entirety, while the inside of shell being avoided to enter air.
Further, welded seal is connected through a screw thread and used between two neighboring shell, and multiple shells is made to form one A entirety enhances the sealing performance of transmitter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transmitter of the present invention;
Fig. 2 is the sealed structural schematic diagram of steel wire cable of the present invention and third shell;
Fig. 3 is the sealed structural schematic diagram of steel wire cable of the present invention and second shell;
In figure: 1- signal processor, 3- sensor, 4- third shell, 5- second shell, 6- first shell, 7- shell cap, 10- locking wire top cap, 11- locking wire nut, 12- water guide head, 13- rubber ring, 16- sealing nut, 18- washer, 19- screw, 20- are mono- Logical copper column, 22- high vacuum silicone grease, 23- temperature sensor, 24- steel wire cable.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit It is fixed.
As shown in Figure 1, a kind of throw-in type liquid transmitter, including successively first shell 6 interconnected, second shell 5 With third shell 4, one end of steel wire cable 24 sequentially passes through first shell 6 and second shell 5 is connect with first shell.
As shown in Fig. 2, one end of first shell 6 is the fixing pipe of steel wire cable, the other end is connecting pin, first shell 6 Fixing end in be sequentially installed with washer 18 and rubber ring 13, the section of the rubber ring 13 is hollow trapezium structure, rubber ring For the big one end of 13 diameter close to the fixing end of first shell 6, the outer wall of rubber ring 13 and the inner wall of first shell 6 are equipped, the Shell cap 7 is also connected with by external screw thread in one shell, 6 fixing end;One end of steel wire cable sequentially passes through shell cap 7, gasket 18 and glue Circle 13 pushes washer along the axial movement of first shell 6, and then makes 13 compressive deformation of rubber ring to steel wire by precession shell cap 7 Cable is sealed.In order to further keep sealing performance, sealing is coated in the thread joint face of shell cap 7 and first shell 6 Glue;The connecting pin of first shell 6 is connect by screw thread with second shell.
As shown in figure 3, the connecting pin of second shell 5 and first shell is additionally provided with steel wire cable sealing device, including close Seal nut 16, washer 18 and sealing ring 13;The end of second shell 5 is provided with the hollow connection for connecting sealing nut 16 Column, the connecting column can it is deep enough into first shell 6, the inner hole of connecting column is connected to the inner hole of second shell 5, connecting column it is interior Hole is bellmouth, and the inclined-plane on the inclined-plane and sealing ring 13 of bellmouth matches, and sealing ring 13 is arranged in inner hole, and washer 18 is located at At the top of the big end of sealing ring 13, sealing nut 16 is connected through a screw thread with connecting column;Steel wire cable 24 passes through connecting column, washer 18 With sealing ring 13, precession sealing nut 16 pushes washer along the axial movement of second shell 6, and then makes 13 compressive deformation of rubber ring Steel wire cable 24 is sealed, sealant is coated on the joint face of connecting column and sealing nut 16.
After steel wire cable is fixed in second shell, need to make inside steel wire cable the sheath of removing steel wire cable Steel wire separated with conducting wire, then steel wire and conducting wire are fixed respectively.
The other end of second shell 5 is provided with the fixation with steel wire device of steel wire cable, including locking wire nut 11 and locking wire top Cap 10, locking wire top cap 10 are conical structure, and locking wire top cap 10 is fitted in the inside of second shell 5, and the end of second shell 5 is set It is equipped with internal screw thread, locking wire nut 11 is connect by screw thread with second shell, and the steel wire of steel wire cable is arranged outside locking wire top cap 10 Between wall and second shell inner wall, the big end that rotation locking wire nut 11 compresses locking wire top cap 10 realizes the fixation to steel wire.Conducting wire Go deep into across locking wire top cap 10 and locking wire nut 11 into third shell.
One end of third shell 4 is connect by screw thread with second shell 5, the other end of third shell 4 and the one of sensor 3 The other end of end connection, sensor 3 is connect by screw thread with water guide head 12.
Temperature sensor 23 is installed, temperature sensor 23 is connect with circuit board, and circuit board is mounted on branch in first shell 4 Support 9 connects, and the single-pass copper column 20 being axially arranged is connected on circuit board, and single-pass copper column 20 passes through at screw 19 and signal It manages device 1 to connect, the conducting wire of steel wire cable 24 is connect with signal processor 1.
For the leakproofness and reliability for further increasing steel wire cable, avoid under high temperature expanded air to steel wire cable line Locking is perfused with high vacuum in first shell 6 and second shell 5 using the air of high vacuum silicone grease discharge enclosure interior Silicone grease 22 fixes steel wire cable and shell after the solidification of high vacuum silicone grease, and specific structure is as follows;
Fill orifice, the perfusion of first shell 6 and second shell 5 are provided on the side wall of first shell 6 and second shell 5 Hole is provided with O-ring seal on sealing nut 8 by blocking nut seal.
The filling process of high vacuum silicone grease is as follows;
Firstly, being irrigated to second shell 5, the locking wire nut 11 of 5 end of second shell is locked, by second shell 5 The sealing nut of the other end unclamps, and is injected high vacuum silicone grease from the perfusing hole of second shell 5 using grease gun, until Gao Zhen Empty 22 self-sealing nut of silicone grease outflow, then lock sealing nut 16, is then connected second shell and first shell 6 by screw thread It connects.
Then first shell is irrigated, first unclamps shell cap 7, using grease gun by high vacuum silicone grease from first shell It is injected in the perfusing hole of body 5, until high vacuum silicone grease 22 is flowed out from shell cap, then locks shell cap 7, complete high vacuum silicone grease 22 Perfusion.
After first shell 6 and second shell are connected through a screw thread, connecting pin is welded using Laser Welding, equally, the After two shells are connect with third shell, connecting pin is welded using Laser Welding.Guarantee the sealing performance of shell.
High vacuum silicone grease uses 22-7501 high vacuum silicone grease.
The steel wire cable is high-temperature-resistant steel wire cable.
The sealing structure of the throw-in type liquid transmitter, steel wire cable are sealed with first shell and second shell respectively Connection, can effectively avoid transmitter from leaking in use using multi-sealing structure;Secondly, in second shell The other end is fixed by steel wire of the fixation with steel wire device to steel wire cable, prevents steel wire cable in use because of heat The reason of swollen shrinkage, causes to move, and then leads to the problem of leaking, secondly, being perfused in first shell and second shell high Vacuum silicon grease, high vacuum silicone grease solidification after fix steel wire cable with first shell and second shell respectively, make steel wire cable and Shell forms an entirety, while preventing liquid entry into shell, solves after existing formula fluid level transmitter works long hours and holds The problem of easily leaking.It can be in -40 DEG C -125 DEG C of medium by testing throw-in type liquid transmitter provided by the present application The work of middle temperature, therefore the scope of application of the throw-in type liquid transmitter greatly improved.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention Protection scope within.

Claims (10)

1. a kind of throw-in type liquid transmitter, which is characterized in that first including steel wire cable (24) and be successively tightly connected Shell (6), second shell (5) and third shell (4);Steel wire cable (24) sequentially passes through first shell (6) and second shell (5), it stretches in third shell (4), is filled with high vacuum silicone grease (22) in first shell (6), second shell (5);
The cable entries end of first shell (6) and second shell (5) is provided with sealing device, and sealing device is for making wire The junction of cable (24) corresponding housing is tightly connected, and the steel wire of steel wire cable (24) is fixedly connected with second shell, steel wire cable (24) conducting wire passes through second shell (5) and connect with the signal processor of third shell (4) end.
2. throw-in type liquid transmitter according to claim 1, which is characterized in that the sealing device include sealing nut, Washer (18) and rubber ring (13);
The rubber ring (13) is tapered structure, and rubber ring (13) is fitted in first shell (6), the big end position of rubber ring (13) In the end of corresponding housing, washer (18) setting is connected in the top of rubber ring (13), sealing nut by screw thread and corresponding housing It connects, screwing hermetic nut can make rubber ring (13) compressive deformation, and steel wire cable (24) sequentially passes through sealing nut, washer (18) With rubber ring (13).
3. throw-in type liquid transmitter according to claim 2, which is characterized in that the cable entries of the second shell (5) End is provided with hollow connecting column, and connecting column protrudes into first shell, and washer (18) and rubber ring (13) are fitted in the interior of connecting column Kong Zhong, sealing nut are connect by screw thread with connecting column.
4. throw-in type liquid transmitter according to claim 2, which is characterized in that the spiral shell of the sealing nut and corresponding housing Sealant is coated on line joint face.
5. throw-in type liquid transmitter according to claim 1, which is characterized in that the cable exits of the second shell (5) Cable fixer is provided in end, the steel wire of steel wire cable (24) is connect by cable fixer with second shell (5).
6. throw-in type liquid transmitter according to claim 5, which is characterized in that the cable fixer includes locking wire top Cap (10) and overhead nut (11);
The locking wire top cap (10) is hollow tapered structure, and the inner wall of second shell is inclined-plane, the inclined-plane and locking wire top cap (10) outer wall matches, and the steel wire of steel wire cable (24) is arranged between locking wire top cap (10) outer wall and second shell inner wall, Locking wire nut (11) is connect by screw thread with second shell (5), and can compress locking wire top cap (10).
7. throw-in type liquid transmitter according to claim 6, which is characterized in that the conducting wire of the steel wire cable (24) passes through Locking wire nut (11) is connect with signal processor.
8. throw-in type liquid transmitter according to claim 1, which is characterized in that the first shell (6) and second shell (5) it is just provided with the perfusing hole for high vacuum silicone grease to be perfused on side wall, is provided with closure nut in perfusing hole.
9. throw-in type liquid transmitter according to claim 7, which is characterized in that be provided with sealing on the closure nut Circle.
10. throw-in type liquid transmitter according to claim 1, which is characterized in that the first shell (6) and second shell (5) it is connected through a screw thread, each other by threaded connection, the threaded connection place passes through weldering for second shell (5) and third shell (4) Connect sealing.
CN201910100681.1A 2019-01-31 2019-01-31 A kind of throw-in type liquid transmitter Pending CN109855700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910100681.1A CN109855700A (en) 2019-01-31 2019-01-31 A kind of throw-in type liquid transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910100681.1A CN109855700A (en) 2019-01-31 2019-01-31 A kind of throw-in type liquid transmitter

Publications (1)

Publication Number Publication Date
CN109855700A true CN109855700A (en) 2019-06-07

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ID=66897370

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910100681.1A Pending CN109855700A (en) 2019-01-31 2019-01-31 A kind of throw-in type liquid transmitter

Country Status (1)

Country Link
CN (1) CN109855700A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07128103A (en) * 1993-11-05 1995-05-19 Gijutsu Kaihatsu Sogo Kenkyusho:Kk Differential pressure sensor
CN203729982U (en) * 2014-02-20 2014-07-23 北京昆仑海岸传感技术有限公司 Input type liquid level and temperature integrated transmitter for deep well measurement
CN206740194U (en) * 2017-03-31 2017-12-12 天水逢泰科技有限责任公司 A kind of throw-in type liquid transmitter of waterproof outer
CN108104762A (en) * 2017-12-18 2018-06-01 中国石油天然气股份有限公司 A kind of wellhead cable sealing device and encapsulating method
CN209416571U (en) * 2018-12-27 2019-09-20 天水华天传感器有限公司 A kind of high overload differential pressure transmitter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07128103A (en) * 1993-11-05 1995-05-19 Gijutsu Kaihatsu Sogo Kenkyusho:Kk Differential pressure sensor
CN203729982U (en) * 2014-02-20 2014-07-23 北京昆仑海岸传感技术有限公司 Input type liquid level and temperature integrated transmitter for deep well measurement
CN206740194U (en) * 2017-03-31 2017-12-12 天水逢泰科技有限责任公司 A kind of throw-in type liquid transmitter of waterproof outer
CN108104762A (en) * 2017-12-18 2018-06-01 中国石油天然气股份有限公司 A kind of wellhead cable sealing device and encapsulating method
CN209416571U (en) * 2018-12-27 2019-09-20 天水华天传感器有限公司 A kind of high overload differential pressure transmitter

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Application publication date: 20190607