CN110364390A - A kind of SF6 gas teletransmission density monitor with self-test - Google Patents
A kind of SF6 gas teletransmission density monitor with self-test Download PDFInfo
- Publication number
- CN110364390A CN110364390A CN201910638693.XA CN201910638693A CN110364390A CN 110364390 A CN110364390 A CN 110364390A CN 201910638693 A CN201910638693 A CN 201910638693A CN 110364390 A CN110364390 A CN 110364390A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- pressure
- temperature
- temperature sensor
- machine core
- 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
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 30
- 229910018503 SF6 Inorganic materials 0.000 description 29
- 229960000909 sulfur hexafluoride Drugs 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
- G01L7/043—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges with mechanical transmitting or indicating means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
Abstract
The present invention discloses a kind of SF6 gas teletransmission density monitor with self-test, including watchcase, terminal box, dial plate, pointer, electric contact, machine core, temperature-compensating plate, pedestal, bourdon tube, wiring board mainboard, magnet steel angular transducer and pressure and temperature sensor, bourdon tube welds on the base, wiring board mainboard is installed on the base, pressure and temperature sensor are mounted in pedestal, machine core is fixed on the base, temperature-compensating plate one end is connected on bourdon tube, the temperature-compensating plate other end is connected on the pull rod of machine core, pointer is riveted in the machine mandrel of machine core, magnet steel angular transducer is mounted in the machine mandrel of machine core, dial plate and electric contact are each attached on pedestal, pedestal and terminal box are assemblied on watchcase.The present invention measures pointer designation date (P20) with magnet steel angular transducer, with pressure and temperature sensor measurement SF6 gas data and calculates P20, then two data are compared, and is more than that setting error issues alarm signal, realizes self-test.
Description
Technical field
The present invention relates to a kind of SF6 gas teletransmission density monitor, especially a kind of SF6 gas teletransmission density with self-test
Relay.
Background technique
Sulfur hexafluoride electric product has been widely used in power department, industrial and mining enterprises, promotes the quick of power industry
Development, while guaranteeing the reliable and secure operation of sulfur hexafluoride electric product at one of vital task of power department.Six
The arc-extinguishing medium and dielectric of sulfur fluoride electric product is sulfur hexafluoride gas, and gas leakage cannot occur, if gas leakage occurs, just not
It can guarantee the reliable and secure operation of sulfur hexafluoride electric product.Therefore, the lfur hexafluoride density value of sulfur hexafluoride electric product is detected
It is very necessary.
Existing SF6 gas teletransmission density monitor mainly uses following two scheme:
(1) pressure sensor and temperature sensor are used, it is close that pressure sensor and temperature sensor are assembled to SF6 gas
It spends on relay inner air path, measures temperature and pressure in SF6 gas circuit, to be converted into SF6 gas corresponding 20 Celsius by calculating
Pressure P20 is spent, and transfers data to backstage；
(2) magnet steel angular transducer is used, magnet steel is set on the needle pivot by SF6 gas density is relay, is faced
Wiring board upper angle encoder, can measure indicators turn angle in this way, be converted into corresponding pointer designation date P20, and handle
Data are transferred to backstage.For example, application No. is 201220258328.X, the entitled pointer density for directly detecting throw of pointer
The patent of relay.
Both the above scheme is all independent at present, and scheme (1) uses pressure sensor and temperature sensor, with
The mechanical structure of SF6 gas density is relay itself does not have any relationship, if pressure sensor and temperature sensor damage, number
According to abnormal, it can not determine whether SF6 gas density is relay indicates normally；Scheme (2) uses magnet steel angular transducer, can
To measure the pointer designation date of SF6 gas density is relay, if the data exception, it is possible to determine that SF6 gas density is relay
Device is abnormal, but not can determine that whether SF6 gas gas circuit is normal.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of SF6 gas teletransmission density monitor with self-test.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of SF6 gas teletransmission density monitor with self-test, it include watchcase, terminal box, dial plate, pointer, electric contact,
Machine core, temperature-compensating plate, pedestal, bourdon tube, wiring board mainboard, magnet steel angular transducer and pressure and temperature sensor, spring
Pipe welds on the base, and wiring board mainboard is installed on the base, and pressure and temperature sensor are mounted in pedestal, and machine core is fixed on
On pedestal, one end of temperature-compensating plate is connected on bourdon tube, and the other end of temperature-compensating plate is connected on the pull rod of machine core, is referred to
Needle is riveted in the machine mandrel of machine core, and magnet steel angular transducer is mounted in the machine mandrel of machine core, and dial plate and electric contact are fixed
On the base, pedestal and terminal box are assemblied on watchcase；Magnet steel angular transducer and pressure and temperature sensor are and route
Plate mainboard is connected by electric wire.
Further, pressure and temperature sensor include pressure and temperature sensor measurement plate and suture introducing needle, pressure and temperature
Degree sensor measurement plate is installed on the inner air path of SF6 gas teletransmission density monitor, and suture introducing needle is welded on pressure and temperature
On sensor measurement plate.
Further, it is fixed with seal receptacle on pedestal, and is sealed using sealing ring.
Further, suture introducing needle and seal receptacle use glass sintering process seal.
The utility model has the advantages that
The present invention combines two schemes of SF6 gas teletransmission density monitor, is measured with magnet steel angular transducer
Pointer designation date (P20) out with pressure and temperature sensor measurement SF6 gas data and calculates P20, then two will obtained
A data compare, and are more than that setting error issues alarm signal, to realize oneself of the SF6 gas teletransmission density monitor
Inspection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of SF6 gas teletransmission density monitor of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the scheme of installation of temperature-compensating plate of the present invention；
Fig. 4 is the front view of Fig. 3；
Fig. 5 is the right view of Fig. 3；
Fig. 6 is the left view of Fig. 3；
Fig. 7 is that pedestal of the present invention and terminal box are assemblied in the structural schematic diagram on watchcase；
Fig. 8 is the front view of Fig. 7；
Fig. 9 is the scheme of installation of wiring board mainboard of the present invention；
Figure 10 is the scheme of installation of pressure of the present invention and temperature sensor measurement plate, suture introducing needle and seal receptacle；
Figure 11 is the front view of Figure 10；
In figure: 1- watchcase, 2- terminal box, 3- dial plate, 4- pointer, 5- electric contact, 6- machine core, 61- pull rod, 62- machine mandrel,
7- temperature-compensating plate, 8- pedestal, 9- bourdon tube, 10- wiring board mainboard, 11- magnet steel angular transducer, 12- pressure and temperature pass
Sensor, 121- pressure and temperature sensor measurement plate, 122- suture introducing needle, 13- seal receptacle.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
The present invention proposes a kind of SF6 gas teletransmission density monitor with self-test, as shown in figs 1-9, it include watchcase 1,
Terminal box 2, dial plate 3, pointer 4, electric contact 5, machine core 6, temperature-compensating plate 7, pedestal 8, bourdon tube 9, wiring board mainboard 10, magnet steel
Angular transducer 11 and pressure and temperature sensor 12, bourdon tube 9 are welded on pedestal 8, and wiring board mainboard 10 is mounted on pedestal 8
On, pressure and temperature sensor 12 are mounted in pedestal 8, and machine core 6 is fixed on pedestal 8, and one end of temperature-compensating plate 7 is connected to
On bourdon tube 9, the other end of temperature-compensating plate 7 is connected on the pull rod 61 of machine core 6, and pointer 4 is riveted on the machine mandrel 62 of machine core 6
On, magnet steel angular transducer 11 is mounted in the machine mandrel 62 of machine core 6, and dial plate 3 and electric contact 5 are each attached on pedestal 8, pedestal
8 and terminal box 2 be assemblied on watchcase 1；Magnet steel angular transducer 11 and pressure and temperature sensor 12 with wiring board mainboard
10 are connected by electric wire.
As shown in figs. 10-11, pressure and temperature sensor 12 include pressure and temperature sensor measurement plate 121 and suture introducing needle
122, pressure and temperature sensor measurement plate 121 are installed on the inner air path of SF6 gas teletransmission density monitor, suture introducing needle
122 are welded on pressure and temperature sensor measurement plate 121.It is fixed with seal receptacle 13 on pedestal 8, and is sealed using sealing ring.
Suture introducing needle 122 and seal receptacle 13 use glass sintering process seal.
Working principle of the present invention is as follows:
When SF6 gas is by pedestal 8, pressure and temperature sensor 12 are capable of measuring corresponding pressure and temperature, are transmitted to line
On road plate mainboard 10, and it is calculated as by chip 20 DEG C of pressure value；Bourdon tube 9 deforms, and machine core 6 is driven to rotate, and drives pointer 4
Rotation, different pressures pointer 4 indicate that different 3 data of dial plate, temperature change, and temperature-compensating plate 7 can also change, temperature-compensating plate 7
Variation also will drive the change of pointer 4, the data of the final indication dial plate 3 of pointer 4 be 20 DEG C of pressure value of correspondence；Magnet steel angle passes
Sensor 11 can measure the variation of pointer 4, and transfer data to wiring board mainboard 10, be calculated by chip it can be concluded that pointer
The data of 4 indication dial plates 3；Above-mentioned two data are all the pressure values of 20 DEG C of corresponding SF6 gas, and two numbers surpass according to real time contrast
Setting error is crossed, alarm signal can be issued.
Limiting the scope of the invention, those skilled in the art should understand that, in technical solution of the present invention
On the basis of, the various modifications or variations that can be made by those skilled in the art with little creative work still of the invention
Within protection scope.
Claims (4)
1. a kind of SF6 gas teletransmission density monitor with self-test, it is characterised in that: it includes watchcase (1), terminal box (2), table
Disk (3), pointer (4), electric contact (5), machine core (6), temperature-compensating plate (7), pedestal (8), bourdon tube (9), wiring board mainboard
(10), magnet steel angular transducer (11) and pressure and temperature sensor (12), bourdon tube (9) are welded on pedestal (8), wiring board
Mainboard (10) is mounted on pedestal (8), and pressure and temperature sensor (12) are mounted in pedestal (8), and machine core (6) is fixed on pedestal
(8) on, one end of temperature-compensating plate (7) is connected on bourdon tube (9), and the other end of temperature-compensating plate (7) is connected to machine core (6)
Pull rod (61) on, pointer (4) is riveted in the machine mandrel (62) of machine core (6), and magnet steel angular transducer (11) is mounted on machine core
(6) in machine mandrel (62), dial plate (3) and electric contact (5) are each attached on pedestal (8), and pedestal (8) and terminal box (2) fill
It fits on watchcase (1)；Magnet steel angular transducer (11) and pressure and temperature sensor (12) pass through with wiring board mainboard (10)
Electric wire connection.
2. the SF6 gas teletransmission density monitor according to claim 1 with self-test, it is characterised in that: the pressure and
Temperature sensor (12) includes pressure and temperature sensor measurement plate (121) and suture introducing needle (122), and pressure and temperature sensor are surveyed
Template (121) is installed on the inner air path of SF6 gas teletransmission density monitor, and suture introducing needle (122) is welded on pressure and temperature
On sensor measurement plate (121).
3. the SF6 gas teletransmission density monitor according to claim 1 with self-test, it is characterised in that: the pedestal (8)
On be fixed with seal receptacle (13), and using sealing ring seal.
4. the SF6 gas teletransmission density monitor according to claim 1 with self-test, it is characterised in that: the suture introducing needle
(122) glass sintering process seal is used with seal receptacle (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638693.XA CN110364390A (en) | 2019-07-16 | 2019-07-16 | A kind of SF6 gas teletransmission density monitor with self-test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638693.XA CN110364390A (en) | 2019-07-16 | 2019-07-16 | A kind of SF6 gas teletransmission density monitor with self-test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110364390A true CN110364390A (en) | 2019-10-22 |
Family
ID=68219274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910638693.XA Pending CN110364390A (en) | 2019-07-16 | 2019-07-16 | A kind of SF6 gas teletransmission density monitor with self-test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110364390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758653A (en) * | 2021-09-09 | 2021-12-07 | 河南平高电气股份有限公司 | Method for monitoring SF6 density relay in real time and pre-judging air leakage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680357A (en) * | 2012-06-01 | 2012-09-19 | 上海景芯电子科技有限公司 | Mechanical pointer SF6 density real-time on-line monitoring device |
| CN202614631U (en) * | 2012-06-01 | 2012-12-19 | 上海景芯电子科技有限公司 | Point-type density relay capable of directly detecting throw of pointer |
| CN104319172A (en) * | 2014-10-31 | 2015-01-28 | 国家电网公司 | Teletransmission sulfur hexafluoride gas density and trace moisture relay |
| CN211265347U (en) * | 2019-07-16 | 2020-08-14 | 上海上芃电气有限公司 | SF6 gas remote transmission density relay with self-checking function |
-
2019
- 2019-07-16 CN CN201910638693.XA patent/CN110364390A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680357A (en) * | 2012-06-01 | 2012-09-19 | 上海景芯电子科技有限公司 | Mechanical pointer SF6 density real-time on-line monitoring device |
| CN202614631U (en) * | 2012-06-01 | 2012-12-19 | 上海景芯电子科技有限公司 | Point-type density relay capable of directly detecting throw of pointer |
| CN104319172A (en) * | 2014-10-31 | 2015-01-28 | 国家电网公司 | Teletransmission sulfur hexafluoride gas density and trace moisture relay |
| CN211265347U (en) * | 2019-07-16 | 2020-08-14 | 上海上芃电气有限公司 | SF6 gas remote transmission density relay with self-checking function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758653A (en) * | 2021-09-09 | 2021-12-07 | 河南平高电气股份有限公司 | Method for monitoring SF6 density relay in real time and pre-judging air leakage |
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