CN220106977U - Low-temperature instrument penetrating assembly - Google Patents
Low-temperature instrument penetrating assembly Download PDFInfo
- Publication number
- CN220106977U CN220106977U CN202321017131.1U CN202321017131U CN220106977U CN 220106977 U CN220106977 U CN 220106977U CN 202321017131 U CN202321017131 U CN 202321017131U CN 220106977 U CN220106977 U CN 220106977U
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- Prior art keywords
- socket
- low
- temperature
- cable
- instrument
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- 230000000149 penetrating effect Effects 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 47
- 210000004907 gland Anatomy 0.000 claims description 22
- 230000035515 penetration Effects 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 8
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000002360 explosive Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The utility model provides a low-temperature instrument penetrating assembly, which comprises a penetrating assembly box body and two low-temperature cable connectors, wherein the penetrating assembly box body is provided with a plurality of low-temperature cable connectors; the low-temperature cable connector is characterized in that two mounting grooves are formed in the penetrating component box body, a socket of the low-temperature cable connector is mounted in the mounting grooves, a plug is located outside and fixed with the socket, the two sockets are communicated through a low-temperature instrument connecting cable, the two plugs are respectively connected with a low-temperature instrument cable and a normal-temperature instrument cable, and the low-temperature instrument cable enters the pump. Compared with the traditional integral instrument penetrating assembly, the structure disclosed by the utility model has the advantages of small number of parts, low maintenance difficulty, simplicity in installation, low requirement on the capability of installers, convenience in installation and capability of improving the field installation efficiency.
Description
Technical Field
The utility model relates to the technical field of instrument cable installation of low-temperature immersed pumps, in particular to a low-temperature instrument penetrating assembly.
Background
The pump head and the motor of the low-temperature immersed pump are integrally immersed in a flammable and explosive low-temperature medium for use, the instrument penetrating piece is a matched piece of the low-temperature immersed pump, an instrument cable at the low-temperature side and a normal-temperature instrument cable at the external atmosphere side are connected, signals are safely transmitted, and meanwhile, the contact between the medium at the low-temperature side and the external atmosphere is isolated, so that the flammable and explosive medium is prevented from leaking to the external environment along the cable; at present, an instrument penetrating assembly matched with a low-temperature immersed pump is in a ceramic welding integrated form or a glass packaging integrated form, and if damaged, the low-temperature immersed pump cannot be maintained and can only be replaced in a complete set; the existing penetrating component is connected with the instrument cable, the adopted contact pin is connected with the instrument cable conductor through mechanical crimping, and in the use process, the mechanical crimping part is easy to break and lose efficacy under the action of external force; the number of the existing penetrating component accessories is large, the existing penetrating component accessories are assembled with the pump housing, the operation is complex, and the field maintenance and application difficulty is high.
It is necessary to provide a cryogenic instrument penetration assembly based thereon.
Disclosure of Invention
According to the technical problem, a low-temperature instrument penetrating assembly is provided.
The utility model adopts the following technical means:
a cryogenic instrument penetration assembly comprises a penetration assembly box, a first cryogenic cable connector, a second cryogenic cable connector and a sealed penetration tube;
two mounting grooves communicated with the outside are formed in the penetrating component box body, and a sealing gland for sealing the mounting grooves is fixed at a notch communicated with the outside of the mounting grooves; the two mounting grooves are communicated with each other at the inner part of the penetrating component box body; the first socket of the first low-temperature cable connector and the second socket of the second low-temperature cable connector are respectively arranged in the two mounting grooves, the wiring end of the first socket and the wiring end of the second socket are communicated through a low-temperature instrument connecting cable, and the low-temperature instrument connecting cable is positioned in the penetrating component box body; the socket of the first socket and the socket of the second socket respectively penetrate through the corresponding sealing gland and are fixedly connected with the sealing gland;
one end of a low-temperature instrument cable is embedded into a first plug of the first low-temperature cable connector, and the first plug is inserted into a socket of the first socket and fixedly connected with the first socket; the other end of the low-temperature instrument cable enters the pump through the pump cover and is connected with the pump; the sealing gland corresponding to the first socket is fixedly connected with the pump cover and seals the pump cover;
the end part of the normal temperature instrument cable is embedded into the second plug of the second low temperature cable connector, and the second plug is inserted into the socket of the second socket and fixedly connected with the second socket.
Preferably, the terminals of the first socket and the second socket, the end of the first plug connected with the low-temperature instrument cable and the end of the second plug connected with the normal-temperature instrument cable are all provided with tail clips.
Preferably, the penetrating component box body is provided with at least one nitrogen gas inlet communicated with the mounting groove and a plugging plate for sealing the nitrogen gas inlet, and a sealing gasket is arranged between the plugging plate and the penetrating component box body; the pressure monitoring installation opening is used for installing a pressure monitoring device, and the pressure monitoring installation opening is sealed through a pressure measuring connecting plate.
Preferably, the connection parts of the first socket and the second socket and the sealing gland are sealed in a threaded fit manner by adopting conical threads, and low-temperature sealant is coated at the conical threads. And the joint of the sealing gland and the penetrating component box body is provided with a low-temperature-resistant O-shaped sealing ring.
Preferably, the portions of the first and second sockets located within the pass-through assembly housing have locking nuts for locking and locating.
Preferably, the second plug is located in the sealing threading tube, and the sealing threading tube is fixedly connected with the sealing gland corresponding to the second socket.
Compared with the prior art, the utility model has the following advantages:
1. the utility model adopts the low-temperature cable connector to connect with the penetrating component box body, realizes the functions of detachability, maintainability and part replacement, and makes up the defect that the penetrating component of the integrated instrument in the current market is not detachable and maintainable.
2. The utility model adopts a quick connection mode of the plug and the socket, is convenient to install and detach, can realize quick plug and pull, and saves maintenance and operation time.
3. The utility model adopts the connection mode of the plug and the socket and is provided with the tail clamp, so that the cable can be effectively prevented from being broken.
4. The number of the components is small, the maintenance difficulty is low, the existing installation is simple, the field installation only needs four steps, the installation is simple, the requirement on the capability of an installer is low, the installation convenience is high, the field installation efficiency can be improved, compared with the existing integrated penetrating component, the installation time is saved by 2 days at least, the installation reliability can be ensured to be 100%, compared with the integrated penetrating component, the reliability of the on-site actual use statistics is 80%, the improvement is 20%, and other reworking work caused by low reliability of the original integrated penetrating component is avoided.
Based on the reasons, the utility model can be widely popularized in the fields of low-temperature immersed pumps and the like.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a cryogenic instrument penetration assembly according to an embodiment of the utility model.
Fig. 2 is a schematic structural diagram of a penetrating assembly of a cryogenic instrument according to an embodiment of the utility model.
FIG. 3 is a schematic view of a mounting process of a cryogenic instrument penetration assembly according to an embodiment of the utility model.
In the figure: 1. penetrating through the assembly box body; 2. a mounting groove; 3. a sealing gland; 4. a first socket; 5. a second socket; 6. the low-temperature instrument is connected with a cable; 7. an O-shaped sealing ring; 8. a lock nut; 9. a low temperature instrument cable; 10. a first plug; 11. a pump cover; 12. a pump cylinder; 13. a normal temperature instrument cable; 14. a second plug; 15. sealing the threading pipe; 16. a tail clip; 17. a plugging plate; 18. a sealing gasket; 19. and a pressure measuring connecting plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
As shown in fig. 1 to 3, a cryogenic instrument penetration assembly includes a penetration assembly housing 1, a first cryogenic cable connector, a second cryogenic cable connector; the model adopted by the first low-temperature cable connector and the second low-temperature cable connector is MT-ULT-7P.
Two mounting grooves 2 communicated with the outside are formed in the penetrating component box body 1, and sealing glands 3 for sealing the mounting grooves 2 are fixed at the notch positions of the mounting grooves 2 communicated with the outside; the two mounting grooves 2 are communicated with each other at the inner part of the penetrating component box body 1; a first socket 4 of the first low-temperature cable connector and a second socket 5 of the second low-temperature cable connector are respectively installed in the two installation grooves 2, the wiring end of the first socket 4 and the wiring end of the second socket 5 are communicated through a low-temperature instrument connection cable 6, and the low-temperature instrument connection cable 6 is positioned in the penetrating component box 1; the socket of the first socket 4 and the socket of the second socket 5 respectively penetrate through the corresponding sealing gland 3 and are fixedly connected with the sealing gland 3; the fixed connection mode adopts conical threads to carry out thread matching sealing, and low-temperature sealant is coated at the conical threads. And the joint of the sealing gland 3 and the penetrating component box body 1 is provided with a low-temperature-resistant O-shaped sealing ring 7. The parts of the first socket 4 and the second socket 5 located in the through assembly housing 1 are provided with locking nuts 8 for locking and positioning. After the outer wall of the socket end of the first socket 4 or the second socket 5 is connected with the sealing gland through conical threads, the locking nut 8 has the effects of fixing the position and preventing the movement of the locking nut.
One end of the low-temperature instrument cable 9 is embedded into a first plug 10 of the first low-temperature cable connector, and the first plug 10 is inserted into a socket of the first socket 4 and fixedly connected with the first socket 4 in a threaded fit manner; the other end of the low-temperature instrument cable 9 enters the pump cylinder 12 through the pump cover 11 to be connected with the internal parts of the pump; the sealing gland 3 corresponding to the first socket 4 is fixedly connected with the flange of the pump cover 11 through bolts, and seals the pump cover 11;
the end part of the normal temperature instrument cable 13 is embedded into a second plug 14 of the second low temperature cable connector, and the second plug 14 is inserted into a socket of the second socket 5 and fixedly connected with the second socket 5 in a threaded fit manner; the second plug 14 is located in the sealing threading tube 15, and the sealing threading tube 15 is fixedly connected with the sealing gland 3 corresponding to the second socket 5 through a flange.
The terminals of the first socket 4 and the second socket 5, the end of the first plug 10 connected with the low-temperature instrument cable 9, and the end of the second plug 14 connected with the normal-temperature instrument cable 13 are all provided with tail clips 16. The tail clip 16 clamps and fixes the whole instrument cable, and achieves the effect that the internal wiring is not pulled by external force.
The penetrating component box body 1 is provided with at least one nitrogen gas inlet communicated with the mounting groove 2 and a plugging plate 17 for sealing the nitrogen gas inlet, and a sealing gasket 18 is arranged between the plugging plate 17 and the penetrating component box body 1; the nitrogen inlet is used for connecting a nitrogen inlet pipeline;
the penetrating component box body 1 is provided with a pressure monitoring installation opening communicated with the installation groove 2, the pressure monitoring installation opening is used for installing a pressure monitoring device, and the pressure monitoring installation opening is sealed through a pressure measuring connecting plate 19. The pressure monitoring device is arranged at the pressure monitoring mounting port after the nitrogen is introduced into the penetrating component box body 1 to monitor the pressure change in the penetrating component box body 1 and check whether leakage occurs. Ensuring that the inflammable and explosive medium is free from leakage.
The specific implementation method can ensure that the instrument cable can prevent flammable and explosive gas in the pump from leaking to the atmosphere side along the cable while the instrument cable performs signal transmission.
The low-temperature instrument penetrating assembly provided by the embodiment can be installed and used on site only by 4 steps, has no professional capability requirement on installers, and is more beneficial to the on-site installation and use of end users, as shown in fig. 3:
(1) inserting the second plug 14 into the second socket 5 and tightening the screw;
(2) the sealing threading pipe 15 is tightly installed on the penetrating component box body 1 through a fastener;
(3) inserting the first plug 10 into the first socket 4 and tightening the screw;
(4) the instrument with the sealing threading pipe 15 is penetrated and tightly installed on the pump cover 11 through the fastening piece, so that the installation is completed, and the installation speed is higher.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (7)
1. A cryogenic instrument penetration assembly, characterized by: the low-temperature cable comprises a penetrating component box body, a first low-temperature cable connector and a second low-temperature cable connector;
two mounting grooves communicated with the outside are formed in the penetrating component box body, and a sealing gland for sealing the mounting grooves is fixed at a notch communicated with the outside of the mounting grooves; the two mounting grooves are communicated with each other at the inner part of the penetrating component box body; the first socket of the first low-temperature cable connector and the second socket of the second low-temperature cable connector are respectively arranged in the two mounting grooves, the wiring end of the first socket and the wiring end of the second socket are communicated through a low-temperature instrument connecting cable, and the low-temperature instrument connecting cable is positioned in the penetrating component box body; the socket of the first socket and the socket of the second socket respectively penetrate through the corresponding sealing gland and are fixedly connected with the sealing gland;
one end of a low-temperature instrument cable is embedded into a first plug of the first low-temperature cable connector, and the first plug is inserted into a socket of the first socket and fixedly connected with the first socket; the other end of the low-temperature instrument cable enters the pump through the pump cover and is connected with the pump; the sealing gland corresponding to the first socket is fixedly connected with the pump cover and seals the pump cover;
the end part of the normal temperature instrument cable is embedded into the second plug of the second low temperature cable connector, and the second plug is inserted into the socket of the second socket and fixedly connected with the second socket.
2. The cryogenic instrument penetration assembly of claim 1 wherein: the wiring ends of the first socket and the second socket, one end of the first plug connected with the low-temperature instrument cable and one end of the second plug connected with the normal-temperature instrument cable are all provided with tail clamps.
3. The cryogenic instrument penetration assembly of claim 1 wherein: the through assembly box body is provided with at least one nitrogen gas inlet communicated with the mounting groove and a plugging plate for sealing the nitrogen gas inlet, and a sealing gasket is arranged between the plugging plate and the through assembly box body; the pressure monitoring installation opening is used for installing a pressure monitoring device, and the pressure monitoring installation opening is sealed through a pressure measuring connecting plate.
4. The cryogenic instrument penetration assembly of claim 1 wherein: the first socket and the second socket are in threaded fit sealing with the sealing gland by adopting conical threads, and the connecting part of the sealing gland and the penetrating component box body is provided with a low-temperature-resistant O-shaped sealing ring.
5. The cryogenic instrument penetration assembly of claim 4 wherein: the portions of the first and second sockets located within the pass-through assembly housing have locking nuts for locking and locating.
6. The cryogenic instrument penetration assembly of claim 4 wherein: and the conical thread is coated with low-temperature sealant.
7. The cryogenic instrument penetration assembly of claim 4 wherein: the second plug is located in the sealing threading tube, and the sealing threading tube is fixedly connected with the sealing gland corresponding to the second socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321017131.1U CN220106977U (en) | 2023-04-28 | 2023-04-28 | Low-temperature instrument penetrating assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321017131.1U CN220106977U (en) | 2023-04-28 | 2023-04-28 | Low-temperature instrument penetrating assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106977U true CN220106977U (en) | 2023-11-28 |
Family
ID=88872212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321017131.1U Active CN220106977U (en) | 2023-04-28 | 2023-04-28 | Low-temperature instrument penetrating assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106977U (en) |
-
2023
- 2023-04-28 CN CN202321017131.1U patent/CN220106977U/en active Active
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