CN202562738U - Portable connection device used for online calibration of safety valve - Google Patents
Portable connection device used for online calibration of safety valve Download PDFInfo
- Publication number
- CN202562738U CN202562738U CN2012202144102U CN201220214410U CN202562738U CN 202562738 U CN202562738 U CN 202562738U CN 2012202144102 U CN2012202144102 U CN 2012202144102U CN 201220214410 U CN201220214410 U CN 201220214410U CN 202562738 U CN202562738 U CN 202562738U
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- screw rod
- safety valve
- model
- cylindrical body
- segment
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Abstract
The utility model provides a portable connection device used for online calibration of a safety valve. According to the utility model, a connection head (1) is a cylindrical body. A bolt head (9) of an extending segment is arranged on an end of the cylindrical body. A large female threaded hole (10) is arranged in an end of the cylindrical body. The upper segment of a screw rod (3) is provided with a threaded segment while the lower segment of the screw rod (3) is provided with no threads. A small female threaded hole (11) is arranged in an end face having no threaded segment. The connection structure of the portable connection device used for the online calibration of the safety valve is that the bolt head (9) of the connection head (1) fits with the small female threaded hole )11) in the screw rod (3) in a threaded manner; an inner sleeve (2) is sleeved in the screw rod (3) and is disposed on the connection head (1); and a nut (4) is screwed on the threaded segment of the screw rod (3). The connection structure of the portable connection device used for the online calibration of the safety valve provided by the utility model has beneficial effects of (1) being suitable for a prior online calibration device; (2) being provided with the connection head of a specification matched with the specification of a bolt of a valve rod of the safety valve; (3) being provided with the screw rod and the nut capable of adjusting lengths; (4) being provided with the inner sleeve preventing the eccentricity of the calibration device.
Description
Technical field
The utility model relates to the coupling arrangement of a kind of safety valve testing equipment of technical field of structures, especially a kind of portable coupling arrangement of safety valve on-line testing.
Background technology
The power plant safety valve is to guarantee the not key device of superpressure operation of power plant's operational outfit.In order to guarantee the qualified, stable of opening pressure of safety valve, need regularly safety valve to be carried out verification.Especially for safety valve, can't dismantle during verification, can only carry out on-line testing such as the significant points on the electric boiler such as drum, superheater, reheater etc.Present safety valve on-line testing coupling arrangement is to adopt the mode of coupling bolt that calibration equipment is installed; Therefore the length of coupling bolt can not be adjusted; But the safety valve of each power plant is owing to manufacturer, model are different; The exposed parts of valve rod is different in size, and it is long or cross the problem of section to run into coupling bolt during installation, is difficult to mate with calibration equipment.Therefore, invent a kind of portable coupling arrangement of safety valve on-line testing, realize to mate the protruded length of different model safety valve valve rod, finally realize the smooth installation of safety valve on-line testing through adjusting.
Summary of the invention
In order to solve the nonadjustable problem of existing safety valve testing coupling arrangement length; The utility model provides a kind of portable coupling arrangement of safety valve on-line testing; This installs the coupling of the safety valve valve rod protruded length of realization and different model, and then realizes the smooth installation of online calibration equipment.
The utility model solves the technical scheme that its technical matters adopted:
A kind of portable coupling arrangement of safety valve on-line testing, the utility model characteristic be, it comprises connector, screw rod, nut and an inner sleeve, wherein:
Connector is a cylindrical body, is provided with the bolt head of the section of stretching out at an end of cylindrical body, offers a big internal thread hole at an end of cylindrical body;
The screw rod epimere is provided with thread segment, and hypomere is not threaded, and offers a little internal thread hole at the end face of the section of being threaded not;
The syndeton of device is: the little internal thread hole on the bolt head of connector and the screw rod screws in and cooperates, and inner sleeve is inserted in screw rod and places on the connector, on the nut screw-in screw flight section.
The beneficial effect of the utility model is;
(1) is applicable to the conventional online calibration equipment; (2) possesses the connector that matees with safety valve valve rod bolt specification; (3) length-adjustable screw rod and nut; (4) prevent the inner sleeve that calibration equipment is eccentric.
The key issue that this utility model solves: at present; Power plant safety valve on-line testing device when mounted; Because the difference of specification; Safety valve valve rod protruded length difference is very big, and the packing ring that causes when verification on coupling arrangement, increasing different-thickness to the different security valve makes augmentor and device for measuring force be in the position of the best, and this makes the packing ring that in verification, need carry a large amount of different-thickness satisfy field requirement.This utility model device has adopted adjustable screw rod and nut to replace packing ring; And increased the off-centre that inner sleeve prevents calibration equipment; Not only reduced the number of components that to carry, also solved the device eccentricity issues that carefully causes owing to screw rod, and practiced thrift the set-up time.
The mechanism of this utility model mainly is that appropriate design goes out portable coupling arrangement according to the structure of existing safety valve on-line testing device.
The useful result of this utility model: this utility model has designed a kind of safety valve on-line testing coupling arrangement; Adopt adjustable screw rod and nut to adapt to the different protruded lengths of safety valve valve rod; Adopt inner sleeve to prevent that calibration equipment is eccentric; Reduce the number of components of carrying, practiced thrift the set-up time.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural drawing of the utility model.
Fig. 2 is the scheme of installation of the utility model.
1. connectors among the figure, 2. inner sleeve, 3. screw rod, 4. nut, 5. pulling force sensor, 6. hydraulic jack, 7. safety valve, 8. safety valve valve rod.
Embodiment
See Fig. 1, a kind of portable coupling arrangement of safety valve on-line testing, the utility model characteristic is, it comprises a connector 1, screw rod 3, nut 4 and inner sleeve 2, wherein:
Connector 1 is a cylindrical body, is provided with the bolt head 9 of the section of stretching out at an end of cylindrical body, offers a big internal thread hole 10 at an end of cylindrical body;
Screw rod 3 epimeres are provided with thread segment, and hypomere is not threaded, and offer a little internal thread hole 11 at the end face of the section of being threaded not;
The syndeton of device is: the little internal thread hole 11 on the bolt head 9 of connector 1 and the screw rod 3 screws in and cooperates, and inner sleeve 2 is inserted in screw rod 3 and places on the connector 1, on the thread segment of nut 4 screw-in screw rods 3.
See Fig. 2, among the embodiment, connector 1 adopts thread connecting mode to be connected with safety valve valve rod 8; Screw rod 3 self-hydraulic oil cylinders 6 and pulling force sensor 7 endoporus penetrate; And inner sleeve 2 put in hydraulic jack 6 or pulling force sensor 7 endoporus, screw in nut 4 by the screw rod top again, and make it light hydraulic fluid compressing cylinder.
The concrete scheme of the utility model comprises following a few step:
1. dispose the connector that adapts with multiple safety valve threaded stem specification;
2. be equipped with and have the screw rod and the corresponding nut of certain-length;
3. be equipped with the inner sleeve that prevents that calibration equipment is eccentric;
4. an end of connector is an internal thread, is connected with the safety valve threaded stem, and the other end is a double-screw bolt, is connected with the internal thread of screw rod;
5. screw rod passes the hydraulic jack and the pulling force sensor endoporus of safety valve on-line testing device;
6. inner sleeve is inserted in screw rod, and makes inner sleeve be positioned at hydraulic jack and pulling force sensor hole site;
7. the head of nut by screw rod screwed in, make it slightly to push down pulling force sensor top;
8. connector, bolt, nut and inner sleeve all adopt the high-strength metal material manufacturing.
Claims (1)
1. the portable coupling arrangement of a safety valve on-line testing; It is characterized in that; It is made up of a connector (1), screw rod (3), nut (4) and inner sleeve (2); Wherein: connector (1) is a cylindrical body, is provided with the bolt head (9) of the section of stretching out at an end of cylindrical body, offers a big internal thread hole (10) at an end of cylindrical body; Screw rod (3) epimere is provided with thread segment, and hypomere is not threaded, and offers a little internal thread hole (11) at the end face of the section of being threaded not; The syndeton of device is: the little internal thread hole (11) on the bolt head (9) of connector (1) and the screw rod (3) screws in and cooperates, and inner sleeve (2) is inserted in screw rod (3) and places on the connector (1), on the thread segment of nut (4) screw-in screw rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202144102U CN202562738U (en) | 2012-05-14 | 2012-05-14 | Portable connection device used for online calibration of safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202144102U CN202562738U (en) | 2012-05-14 | 2012-05-14 | Portable connection device used for online calibration of safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562738U true CN202562738U (en) | 2012-11-28 |
Family
ID=47212383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202144102U Expired - Lifetime CN202562738U (en) | 2012-05-14 | 2012-05-14 | Portable connection device used for online calibration of safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202562738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990700A (en) * | 2015-07-17 | 2015-10-21 | 中船重工特种设备有限责任公司 | Explosion valve test device |
-
2012
- 2012-05-14 CN CN2012202144102U patent/CN202562738U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990700A (en) * | 2015-07-17 | 2015-10-21 | 中船重工特种设备有限责任公司 | Explosion valve test device |
| CN104990700B (en) * | 2015-07-17 | 2018-06-26 | 中船重工特种设备有限责任公司 | Explosion valve test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |