CN205537996U - A software thermal resistance for measuring pump body axle bush temperature - Google Patents
A software thermal resistance for measuring pump body axle bush temperature Download PDFInfo
- Publication number
- CN205537996U CN205537996U CN201620056065.2U CN201620056065U CN205537996U CN 205537996 U CN205537996 U CN 205537996U CN 201620056065 U CN201620056065 U CN 201620056065U CN 205537996 U CN205537996 U CN 205537996U
- Authority
- CN
- China
- Prior art keywords
- temperature
- thermal resistance
- oil resistant
- braided tube
- pump housing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a software thermal resistance for measuring pump body axle bush temperature, including temperature -sensing probe and lead -out wire, be equipped with at the lead -out wire overcoat and weave the pipe, the temperature -sensing probe is packaged with to seal with the joint portion of weaving the pipe glues characterized by: it is equipped with the cover of nai the outermost layer of skin still to overlap with the joint portion of weaving the pipe at the temperature -sensing probe to carry out the member that tightens up that tightens up to weaving the pipe weaving to be equipped with on the pipe, the utility model discloses simple structure, easy dismounting, repeatedly usable structurally improve the production of siphonage when effectively having prevented to measure to pump body axle bush through the software thermal resistance to current to avoid revealing of lubricating oil, ensured the accuracy and the reliability of stabilizing safe operation and axle bush temperature measurement of pump body upper bearing.
Description
Technical field
This utility model relates to temperature sensor technology field, a kind of software thermal resistance for measuring pump housing bearing bush temperature.
Background technology
In thermal power plant, the subsidiary engine equipment that many in field apparatus is important, such as water pump, pre feedwater pump, condensate pump, water circulating pump, pressure fan, air-introduced machine etc., the bearing bush temperature of these subsidiary engines is the thermometer of equipment bearing operation conditions, selects the realization of suitable software thermal resistance that these subsidiary engines (pump housing) bearing bush temperature carries out accurate, stable, reliable measurement and is particularly important.
Currently, pump housing bearing bush temperature is measured the temperature sensor selected and is mainly PT100, PT100 and is made up of temperature-sensing probe and lead-out wire thereof, lead-out wire is set with braided tube.When measuring the bearing bush temperature of the pump housing, temperature-sensing probe being arranged on watt putting of bearing shell, the end of lead-out wire connects the binding post of pump housing rosette.But, find during actually used, the temperature-sensing probe long period of soaking of PT100 is in lubricating oil, the bearing shell of these pump housings dismounts in maintenance process continually, cause the fluid sealant hardening of temperature-sensing probe and lead-out wire joint portion, fatigue to cause crack even to come off, have a strong impact on the service life of PT100；Simultaneously because lubricating oil has certain oil pressure between bearing shell, temperature-sensitive end at PT100 forms certain pressure reduction with terminals (being placed in rosette), thus create siphonage, lubricating oil between bearing shell flows in rosette along braided tube, cause the long-term leakage of oil of rosette, lubricating oil every day amount of leakage up to 500-600ml, need tirelessly change rag oil suction artificial every day.Common software thermal resistance is after experiencing several time between overhauls(TBO)s, and its reliability and sealing are had a greatly reduced quality, and not only impact pump housing bearing temperature detection accuracy and reliability, can not meet the modern enterprise " leakproof plant " requirement to field apparatus simultaneously.
Summary of the invention
The purpose of this utility model seeks to solve currently employed software thermal resistance when measuring pump housing bearing bush temperature, easily produce siphonage, thus leverage accuracy and the reliability of measurement result, waste time and energy simultaneously, it is unfavorable for that the problem of safe operation stablized by pump housing upper bearing (metal), a kind of software thermal resistance for measuring pump housing bearing bush temperature is provided for this.
Concrete scheme of the present utility model is: a kind of software thermal resistance for measuring pump housing bearing bush temperature, include temperature-sensing probe and lead-out wire thereof, braided tube it is set with outside lead-out wire, temperature-sensing probe is packaged with fluid sealant with the joint portion of braided tube, it is characterized in that: be also set with oil resistant leather sheath in the joint portion of temperature-sensing probe Yu braided tube, and be provided with in braided tube braided tube is tightened up tighten up component.
Tighten up component described in this utility model and include stud and oil resistant rubber plug and lock nut, stud, oil resistant rubber plug and lock nut are wherein respectively equipped with the through hole of coupling braided tube；One end of stud is fixing with the pump case of the pump housing to be connected, and the other end of stud offers the conical cavity coaxially arranged with through hole；Oil resistant rubber plug is embedded in conical cavity, and the axial length of oil resistant rubber plug is more than the axial length of conical cavity；Lock nut is sleeved on stud and for being covered in conical cavity by oil resistant rubber plug.
The end of lead-out wire described in this utility model is equipped with " U " type fork, pointer terminal or aviation plug.
The thickness of oil resistant leather sheath described in this utility model is 0.3-0.5mm.
This utility model has the advantage that
(1) this utility model enhances fatigue resistance and the antiwear property of software thermal resistance joint portion by setting up oil resistant leather sheath, extends the service life of software thermal resistance；
(2) this utility model tightens up component by arranging in braided tube, effectively prevent owing to occurring siphonage to cause the leakage of lubricating oil, avoid staff and frequently change the problem that rag oil suction is wasted time and energy, it is ensured that pump housing upper bearing (metal) runs the most safely；
(3) this utility model simple in construction, convenient disassembly, it is achieved that software thermal resistance is reused, it is ensured that the accuracy of pump housing bearing bush temperature measurement result and reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross section view tightening up component in this utility model；
Fig. 3 is the mounting structure schematic diagram that pump housing bearing bush temperature is measured by this utility model.
In figure: 1 temperature-sensing probe, 2 lead-out wires, 3 braided tube, 4 oil resistant leather sheaths, 5 tighten up component, 6 studs, 7 oil resistant rubber plugs, 8 lock nuts, 9 through holes, 10 pump housings, 11 pump cases, 12 conical cavities, 13 bearing shells, 14 rotating shafts, 15 " U " type fork, 16 watts of sets, 17 rosettees, 18 binding posts.
Detailed description of the invention
See Fig. 1, this utility model includes temperature-sensing probe 1 and lead-out wire 2 thereof, wherein temperature-sensing probe 1 has Stainless Steel Shell, it is packaged with temperature-sensing element in the housing, temperature-sensing element is connected with lead-out wire 2, braided tube 3 it is set with outside lead-out wire 2, temperature-sensing probe 1 is packaged with fluid sealant with the joint portion of braided tube 3, oil resistant leather sheath 4 also it is set with in the joint portion of temperature-sensing probe 1 with braided tube 3, the thickness of oil resistant leather sheath 4 is 0.3-0.5mm, braided tube 3 is provided with braided tube 3 is tightened up tighten up component 5.
See Fig. 2, Fig. 3, tighten up component 5 described in the present embodiment and include stud 6 and oil resistant rubber plug 7 and lock nut 8, stud 6, oil resistant rubber plug 7 and lock nut 8 are wherein respectively equipped with the through hole 9 of coupling braided tube 3；Stud 6 is full thread stud or band shoulder studs, and one end of stud 6 is fixing with the pump case 11 of the pump housing 10 to be connected, and the other end of stud 6 offers the conical cavity 12 coaxially arranged with through hole 9；Oil resistant rubber plug 7 is embedded in conical cavity 12, and the axial length of oil resistant rubber plug 7 is more than the axial length of conical cavity 12；Lock nut 8 is sleeved on stud 6 and for covering in conical cavity 12 by oil resistant rubber plug 7, when manually tightening lock nut 8, oil resistant rubber plug 7 deforms upon due to the extruding force that given by lock nut 8, thus braided tube 3 is killed, the i.e. two ends of braided tube 3 can not be interconnected, thus there is siphonage due to pressure differential in the two ends avoiding braided tube 3, avoid the leakage (bearing holder (housing, cover) is contained in rotating shaft 14, and bearing shell 13 is sleeved on bearing) of lubricating oil between bearing shell 13 and the bearing of the pump housing 10.
The end of lead-out wire 2 described in the present embodiment is equipped with " U " type fork 15, pointer terminal or aviation plug.
This utility model is when the temperature of the bearing shell 13 to the pump housing 10 measures, on watt set 16 of the bearing shell 13 that first temperature-sensing probe 1 of software thermal resistance is arranged on the pump housing 10；Then, it is arranged on the pump case 11 of the pump housing 10 (on pump case 11, offering the screwed hole matched with stud 6) by tightening up component 5, is coated with the braided tube 3 of lead-out wire 2 and is inserted through and tightens up component 5, and by tightening up component 5, braided tube 3 is tightened up, killed；Finally, " U " type on each lead-out wire 2 is pitched on 15 binding posts 18 being sequentially arranged in rosette 17, then by wire switching test instrument or processor on binding post 18, pointer terminal or aviation plug also can be installed, in order to be directly connected with test instrunment or processor in the end of lead-out wire 2.
Claims (4)
1. the software thermal resistance being used for measuring pump housing bearing bush temperature, include temperature-sensing probe and lead-out wire thereof, braided tube it is set with outside lead-out wire, temperature-sensing probe is packaged with fluid sealant with the joint portion of braided tube, it is characterized in that: be also set with oil resistant leather sheath in the joint portion of temperature-sensing probe Yu braided tube, and be provided with in braided tube braided tube is tightened up tighten up component.
A kind of software thermal resistance for measuring pump housing bearing bush temperature the most according to claim 1, it is characterized in that: described in tighten up component and include stud and oil resistant rubber plug and lock nut, stud, oil resistant rubber plug and lock nut are wherein respectively equipped with the through hole of coupling braided tube；One end of stud is fixing with the pump case of the pump housing to be connected, and the other end of stud offers the conical cavity coaxially arranged with through hole；Oil resistant rubber plug is embedded in conical cavity, and the axial length of oil resistant rubber plug is more than the axial length of conical cavity；Lock nut is sleeved on stud and for being covered in conical cavity by oil resistant rubber plug.
A kind of software thermal resistance for measuring pump housing bearing bush temperature the most according to claim 1, is characterized in that: the end of described lead-out wire is equipped with " U " type fork, pointer terminal or aviation plug.
A kind of software thermal resistance for measuring pump housing bearing bush temperature the most according to claim 1, is characterized in that: the thickness of described oil resistant leather sheath is 0.3-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056065.2U CN205537996U (en) | 2016-01-21 | 2016-01-21 | A software thermal resistance for measuring pump body axle bush temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620056065.2U CN205537996U (en) | 2016-01-21 | 2016-01-21 | A software thermal resistance for measuring pump body axle bush temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205537996U true CN205537996U (en) | 2016-08-31 |
Family
ID=56766837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620056065.2U Expired - Fee Related CN205537996U (en) | 2016-01-21 | 2016-01-21 | A software thermal resistance for measuring pump body axle bush temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205537996U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636024A (en) * | 2020-11-30 | 2021-04-09 | 华能山东石岛湾核电有限公司 | Thermocouple wiring method for thrust bearing of steam turbine |
-
2016
- 2016-01-21 CN CN201620056065.2U patent/CN205537996U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636024A (en) * | 2020-11-30 | 2021-04-09 | 华能山东石岛湾核电有限公司 | Thermocouple wiring method for thrust bearing of steam turbine |
| CN112636024B (en) * | 2020-11-30 | 2022-06-14 | 华能山东石岛湾核电有限公司 | Thermocouple wiring method for thrust bearing of steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |