CN202486084U - SF6 micro-water content transducer calibration device - Google Patents
SF6 micro-water content transducer calibration device Download PDFInfo
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- CN202486084U CN202486084U CN2011205601285U CN201120560128U CN202486084U CN 202486084 U CN202486084 U CN 202486084U CN 2011205601285 U CN2011205601285 U CN 2011205601285U CN 201120560128 U CN201120560128 U CN 201120560128U CN 202486084 U CN202486084 U CN 202486084U
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- reverse checkvalve
- water content
- programmable logic
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Abstract
The utility model belongs to the field of detection devices and particularly relates to an SF6 micro-water content transducer calibration device which comprises a container (2), a miniature air pump (4), a high precision dew-point sensor (5), an inner connecting pipe (8), an outer connecting pipe (22), a first one-way check valve (9), a second one-way check valve (10), a third one-way check valve (11), a fifth one-way check valve (13), a high precision pressure transducer (24), a high precision temperature transducer (25), a first electromagnetic valve (26), a third electromagnetic valve (28), a vacuum pump (29), a high purity nitrogen cylinder (31), a programmable controller (32) and a computer (42). The miniature air pump (4) and the high precision dew-point sensor (5) are arranged in the container (2), and detection ports of the high precision pressure transducer (24) and the high precision temperature transducer (25) are respectively communicated with a cavity of the container (2). The SF6 micro-water content transducer calibration device is high in precision, convenient to operate and rapid in calibration speed.
Description
Technical field
The utility model belongs to the pick-up unit field, relates in particular to a kind of SF
6
Micro-water content transmitter caliberating device.
Background technology
high-voltage switch gear is one of visual plant of power plant, transformer station, in order safely and reliably electric power to be delivered to national grid, must guarantee normal, the reliability services of equipment work such as high-voltage switch gear.In high-voltage switch gear GIS equipment, the micro-moisture content of SF6 blanket gas plays an important role to the performance of high-voltage switch gear and the normal operation of equipment.Mainly show: the switch insulation performance reduction that moisture exceeds standard and brings causes high-voltage breakdown; Near two end electrodes, produce shelf depreciation because of insulating capacity descends, the time has been grown and has caused the connectivity flashover; Directly influence the break performance of high-voltage switch gear.Therefore, need the micro-moisture content of SF6 gas in the high-voltage switch gear GIS equipment be detected in real time.
SF
6
The micro-water content transmitter is to be high-voltage switch gear GIS equipment SF specially
6
The micro-moisture content detection of gas and the instrument that designs.But, owing to there are differences between the different micro-water content transmitters, and with variation of temperature, variation of output signals is also very big, therefore, in order to guarantee the accuracy of detection of micro-water content transmitter, must dispatch from the factory at the micro-water content transmitter and advance rower calmly.
The method that dry gas humidity is generally demarcated by
measurement verification unit is to adopt the dew point of chilled-mirror type dew point instrument detected gas under normal pressure, calculates the micro-water content of gas then.Adopt the SF of this principle design 6 Micro-water content transmitter caliberating device generally is a fills with water in a container, because SF 6 Gas has certain toxicity, and can pollute environment, and the normal high pure nitrogen that adopts replaces SF in the demarcation 6 Gas, the pipes with certain water permeability that length is different are immersed in the water, and an end of pipe is connected with the high pure nitrogen bottle through interface, and the other end of pipe is demarcated SF through interface and quilt 6 The micro-water content transmitter is connected, and is connected with chilled-mirror type dew point instrument simultaneously, utilizes the osmosis of tube wall; Mix mutually with high pure nitrogen in the hydrone lead-in tube with certain humidity, output has the gas of certain micro-water content, because the pipeline length that is immersed in the water is different; The osmosis of moisture is also inequality, and pipeline is long more, and the moisture of infiltration is many more; The hydrone that is added in the gas is many more, and the gas micro-water content of output is just high; Pipeline is short more, and the moisture of infiltration is just few more, and the hydrone that is added in the gas is few more, and the gas micro-water content of output is just low.Through changing the length of pipeline, produce the gas of different micro-water contents, pass through SF then 6 The output of micro-water content transmitter and the output of chilled-mirror type dew point instrument compare, and realize SF 6 The demarcation of micro-water content transmitter.Adopt this method to SF 6 The micro-water content transmitter is demarcated can only be to SF 6 The micro-water content transmitter is demarcated under normal pressure, can't realize SF 6 The band of micro-water content transmitter is pressed and is demarcated, and in the practical application of high-voltage switch gear, SF 6 The pressure of gas is generally 0.45MPa or 0.6MPa, therefore adopts the SF of this principle design 6 Micro-water content transmitter caliberating device exists that accuracy is low, complicated operation, demarcation speed wait problem slowly.
The utility model content
The utility model is intended to overcome the weak point of prior art and provides that a kind of accuracy is high, easy to operate, fast calibration speed SF
6
Micro-water content transmitter caliberating device.
For achieving the above object, the utility model is to realize like this
.
SF
6
Micro-water content transmitter caliberating device, it comprises SF
6
Micro-water content transmitter, container, micro air pump, high precision dew point transducer, inner connection tube, outer connecting pipe, the first unidirectional reverse checkvalve, the second unidirectional reverse checkvalve, the 3rd unidirectional reverse checkvalve, the 5th unidirectional reverse checkvalve, high-precision pressure transmitter, high-precision temperature transmitter, first solenoid valve, the 3rd solenoid valve, vacuum pump, high pure nitrogen bottle, Programmable Logic Controller and computing machine.
said micro air pump and high precision dew point transducer place in the container; The detection port of said high-precision pressure transmitter and high-precision temperature transmitter communicates with the inner chamber of container respectively.
said second unidirectional reverse checkvalve, the 3rd unidirectional reverse checkvalve and the 5th unidirectional reverse checkvalve communicate with the inner chamber of container.
said first unidirectional reverse checkvalve joins through the gas outlet of inner connection tube and micro air pump.
Said SF
6
The inlet end of micro-water content transmitter communicates with the first unidirectional reverse checkvalve; Its outlet side communicates with the second unidirectional reverse checkvalve through outer connecting pipe.
said vacuum pump joins through first solenoid valve and the 3rd unidirectional reverse checkvalve; Said high pure nitrogen bottle joins through the 3rd solenoid valve and the 5th unidirectional reverse checkvalve.
The signal output part of
said high precision dew point transducer, high-precision pressure transmitter and high-precision temperature transmitter connects the analog quantity input end of Programmable Logic Controller successively respectively.
The power port of
said micro air pump and vacuum pump joins through the switching value output port of pilot relay and Programmable Logic Controller respectively.
The switching value output port of
said Programmable Logic Controller joins with the control end of first solenoid valve and the 3rd solenoid valve respectively successively, to realize leading to the control of vacuum pump, high pure nitrogen bottle gas circuit.
PORT COM of said Programmable Logic Controller and the PORT COM of computing machine join, to realize communication between the two.
as a kind of preferred version, the 4th unidirectional reverse checkvalve and second solenoid valve that the utility model also is provided with pneumatic pump, communicates with container intracavity; Said pneumatic pump joins through second solenoid valve and the 4th unidirectional reverse checkvalve; The power port of said pneumatic pump joins through the switching value output port of pilot relay and Programmable Logic Controller; The switching value output terminal of said Programmable Logic Controller and the control end of second solenoid valve join, to realize leading to the control of pneumatic pump gas circuit.
as another kind of preferred version, the utility model also is provided with mini-fan in said container; The switching value output port of said Programmable Logic Controller joins through the power port of pilot relay and mini-fan.
further, the utility model also is provided with heating tube in said container; The switching value output port of said Programmable Logic Controller joins through the power port of pilot relay and heating tube.
further, the utility model is provided with joint flange and can cuts down seat at the port of said container; The said seat that cuts down is fixedly connected with joint flange; Card extender outside card extender reaches in the said both sides of cutting down seat are respectively affixed.
in addition, the utility model also is provided with vacuum meter; The detection port of said vacuum meter communicates with container intracavity; The signal output port of said vacuum meter connects the analog quantity input port of Programmable Logic Controller.
The utility model is as SF
6
The caliberating device of micro-water content transmitter is demarcated the automaticity height, accuracy is high, demarcation speed is fast; Compared with prior art; The characteristics of the utility model are in particular in: 1, be employed in the compressed gas that charges into different micro-moisture content in the closed container, demarcate SF
6
The micro-water content transmitter can be realized SF
6
The band of micro-water content transmitter is pressed and is demarcated.
2, welding can be cut down seat on joint flange, can realize by the power supply in the export-oriented closed container of closed container and the transmission of signal.
3, in closed container, place micro air pump, can realize that gas is at closed container with by demarcation SF
6
Circulating between the micro-water content transmitter.
4, in closed container, place mini-fan, can make the micro-moisture content of gas in the closed container even.
5, in closed container, place well heater, can accelerate the gas in the dry closed container.
6, place pneumatic pump, vacuum pump, high-purity nitrogen gas cylinder on the car, and, can regulate the moisture of gas in the closed container easily through automatic control to solenoid valve at device.
Description of drawings
are described further the utility model below in conjunction with accompanying drawing and embodiment.The protection domain of the utility model will not only be confined to the statement of following content.
Fig. 1 is the utility model mechanical connecting structure synoptic diagram.
Fig. 2 is a connecting structure for electrical equipment synoptic diagram in the utility model container.
Fig. 3 is the outer electric syndeton synoptic diagram of the utility model container.
Among
figure: 2, container; 3, installing plate; 4, micro air pump; 5, high precision dew point transducer; 6, mini-fan; 7, heating tube; 8, inner connection tube; 9, the first unidirectional reverse checkvalve; 10, the second unidirectional reverse checkvalve; 11, the 3rd unidirectional reverse checkvalve; 12, the 4th unidirectional reverse checkvalve; 13, the 5th unidirectional reverse checkvalve; 14, joint flange; 15, joint flange; 16, can cut down seat; 17, can cut down seat; 18, interior card extender; 19, interior card extender; 20, outer card extender; 21, outer card extender; 22, outer connecting pipe; 23, vacuum meter; 24, high-precision pressure transmitter; 25, high-precision temperature transmitter; 26, first solenoid valve; 27, second solenoid valve; 28, the 3rd solenoid valve; 29, vacuum pump; 30, pneumatic pump; 31, high pure nitrogen bottle; 32, Programmable Logic Controller; 33, mini-printer; 34, linear power supply; 35 pilot relays; 36, pilot relay; 37, pilot relay; 38, pilot relay; 39, pilot relay; 40, A.C. contactor; 41, A.C. contactor; 42, computing machine.
Embodiment
As shown in the figure, SF
6
Micro-water content transmitter caliberating device, it comprises SF
6
The unidirectional reverse checkvalve of the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of micro-water content transmitter, container 2, micro air pump 4, high precision dew point transducer 5, inner connection tube 8, outer connecting pipe 22, first 9, second the 10, the 3rd the 11, the 5th 13, high-precision pressure transmitter 24, high-precision temperature transmitter 25, first solenoid valve 26, the 3rd solenoid valve 28, vacuum pump 29, high pure nitrogen bottle 31, Programmable Logic Controller 32 and computing machine 42.
said micro air pump 4 and high precision dew point transducer 5 place in the container 2; The detection port of said high-precision pressure transmitter 24 and high-precision temperature transmitter 25 communicates with the inner chamber of container 2 respectively.
said second unidirectional reverse checkvalve the 10, the 3rd unidirectional reverse checkvalve 11 and the 5th unidirectional reverse checkvalve 13 communicate with the inner chamber of container 2.
said first unidirectional reverse checkvalve 9 joins through the gas outlet of inner connection tube 8 with micro air pump 4.
Said SF
6
The inlet end of micro-water content transmitter communicates with the first unidirectional reverse checkvalve 9; Its outlet side communicates with the second unidirectional reverse checkvalve 10 through outer connecting pipe 22.
said vacuum pump 29 joins through first solenoid valve 26 and the 3rd unidirectional reverse checkvalve 11; Said high pure nitrogen bottle 31 joins through the 3rd solenoid valve 28 and the 5th unidirectional reverse checkvalve 13.
The signal output part of
said high precision dew point transducer 5, high-precision pressure transmitter 24 and high-precision temperature transmitter 25 connects the analog quantity input end of Programmable Logic Controller 32 successively respectively.
The power port of
said micro air pump 4 and vacuum pump 29 joins through the switching value output port of pilot relay and Programmable Logic Controller 32 respectively.
The switching value output port of
said Programmable Logic Controller 32 joins with the control end of first solenoid valve 26 and the 3rd solenoid valve 28 respectively successively, to realize leading to the control of vacuum pump 29, high pure nitrogen bottle 31 gas circuits.
PORT COM of said Programmable Logic Controller 32 and the PORT COM of computing machine 42 join, to realize communication between the two.
The 4th unidirectional reverse checkvalve 12 and second solenoid valve 27 that
the utility model also can be provided with pneumatic pump 30, communicate with container 2 inner chambers; Said pneumatic pump 30 joins through second solenoid valve 27 and the 4th unidirectional reverse checkvalve 12; The power port of said pneumatic pump 30 joins through the switching value output port of pilot relay and Programmable Logic Controller 32; The switching value output terminal of said Programmable Logic Controller 32 and the control end of second solenoid valve 27 join, to realize leading to the control of pneumatic pump 30 gas circuits.
the utility model also can be provided with mini-fan 6 in said container 2; The switching value output port of said Programmable Logic Controller 32 joins through the power port of pilot relay and mini-fan 6.
the utility model also can be provided with heating tube 7 in said container 2; The switching value output port of said Programmable Logic Controller 32 joins through the power port of pilot relay and heating tube 7.
the utility model can be provided with joint flange and can cut down seat at the port of said container 2; The said seat that cuts down is fixedly connected with joint flange; Card extender outside card extender reaches in the said both sides of cutting down seat are respectively affixed.
the utility model also can be provided with vacuum meter 23; The detection port of said vacuum meter 23 communicates with container 2 inner chambers; The signal output part of said vacuum meter 23 connects the analog quantity input end of Programmable Logic Controller 32.
the utility model is when actual design, and its one-piece construction can comprise: the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of the unidirectional reverse checkvalve of device car, container 2, installing plate 3, micro air pump 4, high precision dew point transducer 5, mini-fan 6, heating tube 7, inner connection tube 8, first 9, second the 10, the 3rd the 11, the 4th the 12, the 5th 13, joint flange 14, joint flange 15, can cut down seat 16, can cut down seat 17, interior card extender 18, interior card extender 19, outer card extender 20, outer card extender 21, outer connecting pipe 22, vacuum meter 23, high-precision pressure transmitter 24, high-precision temperature transmitter 25, first solenoid valve 26, second solenoid valve 27, the 3rd solenoid valve 28, vacuum pump 29, pneumatic pump 30, high pure nitrogen bottle 31, Programmable Logic Controller 32, mini-printer 33, linear power supply 34, pilot relay 35, pilot relay 36, pilot relay 37, pilot relay 38, pilot relay 39, A.C. contactor 40, A.C. contactor 41, touch-screen type flat computer 42.
The said SF of the utility model
6
Micro-water content transmitter caliberating device container 2 is fixed on the horizontal panel of device car through screw.
are as shown in Figure 1, and Fig. 1 is the utility model mechanical connecting structure synoptic diagram; The bottom of said container 2 is connected through screw with the device car.The said joint flange of the utility model 14, joint flange 15 are connected through screw with the two ends of container 2; The said seat 16 that cuts down is welded on the joint flange 14; The said seat 17 that cuts down is welded on the joint flange 15; Said installing plate 3 is fixed on the inner tubal wall of container 2 through the mode of welding; Said micro air pump 4, high precision dew point transducer 5, mini-fan 6 are connected with installing plate 3 through screw; Said heating tube 7 is connected with mounting bracket on being welded on container 2; Said first unidirectional reverse checkvalve 9, second unidirectional reverse checkvalve the 10, the 3rd unidirectional reverse checkvalve the 11, the 4th unidirectional reverse checkvalve 12 and the 5th unidirectional reverse checkvalve 13 are welded on the outer tube wall of container 2, and communicate with container 2 inside; The said first unidirectional reverse checkvalve 9 is connected through the gas outlet of inner connection tube 8 with micro air pump 4; Said by demarcation SF
6
The inlet end of micro-water content transmitter is screwed on the first unidirectional reverse checkvalve 9 through screw thread, and the outlet side is connected with the second unidirectional reverse checkvalve 10 through outer connecting pipe 22; The detection port of said vacuum meter 23, the mode through screw thread is screwed on the outer tube wall of container 2, reaches in the container 2, communicates with container 2 inside; The pressure detection port of said high-precision pressure sensor 24, the mode through screw thread is screwed on the outer tube wall of container 2, communicates with container 2 inside; The temperature detection port of said temperature sensors of high precision 25, the mode through screw thread is screwed on the outer tube wall of container 2, reaches in the container 2, communicates with container 2 inside; Said first solenoid valve 26, second solenoid valve 27, the 3rd solenoid valve 28 are fixed on the base plate of device car; Said vacuum pump 29 is installed on the base plate of device car, fixes through screw; Said pneumatic pump 30 is installed on the base plate of device car, fixes through screw; Said high pure nitrogen bottle 31 vertically is placed on the base plate of device car, fixes through support; Said vacuum pump 29 is connected with the 3rd unidirectional reverse checkvalve 11 through first solenoid valve 26; Said pneumatic pump 30 is connected with the 4th unidirectional reverse checkvalve 12 through second solenoid valve 27; Said high pure nitrogen bottle 31 is connected with the 5th unidirectional reverse checkvalve 13 through solenoid valve 28.
are as shown in Figure 2, and Fig. 2 is a connecting structure for electrical equipment synoptic diagram in the utility model container; Card extender 18 is welded on and can cuts down seat 16 and can cut down on the silk in the inboard six roots of sensation of container 2 in said; Card extender 19 is welded on and can cuts down seat 17 and can cut down on the silk in the inboard six roots of sensation of container 2 in said; Said outer card extender 20 is welded on and can cuts down seat and 16 can cut down on the silk in the six roots of sensation in container 2 outsides; Said outer card extender 21 is welded on and can cuts down seat and 17 can cut down on the silk in the six roots of sensation in container 2 outsides; The power lead of the power lead of said micro air pump 4, high precision dew point transducer 5 and signal wire are connected with interior card extender 18, the power lead of the power lead of mini-fan 6, heating tube 7 is connected with interior card extender 19.
are as shown in Figure 3, and Fig. 3 is the outer electric syndeton synoptic diagram of the utility model container; The dc output end of said linear power supply 34 is connected with outside link plate 20 through lead, and then supplies power to high precision dew point transducer 5 through interior web joint 18; The analog quantity input end of Programmable Logic Controller 32 is connected with outside link plate 20, and then gathers the current signal of high precision dew point transducer 5 outputs through interior web joint 18; The dc output end of said linear power supply 34 is connected through the power end of lead with vacuum meter 23, realizes to vacuum meter 23 power supplies; The analog quantity input end of Programmable Logic Controller 32 is connected with the output of the electric current of vacuum meter 23, gathers the current signal of vacuum meter 23 outputs; The dc output end of said linear power supply 34 is connected through the power end of lead with high-precision pressure sensor 24, realizes to high-precision pressure sensor 24 power supplies; The analog quantity input end of Programmable Logic Controller 32 is connected with the output of the electric current of high-precision pressure sensor 24, gathers the current signal of high-precision pressure sensor 24 outputs; The dc output end of said linear power supply 34 is connected through the power end of lead with temperature sensors of high precision 25, realizes to temperature sensors of high precision 25 power supplies; The analog quantity input end of Programmable Logic Controller 32 is connected with the output of the electric current of temperature sensors of high precision 25, gathers the current signal of temperature sensors of high precision 25 outputs; A PORT COM of said Programmable Logic Controller 32 is connected with the PORT COM of computing machine 42, realizes communication between the two; Another PORT COM of said Programmable Logic Controller 32 is connected with the PORT COM of mini-printer 33, realizes communication between the two; The dc output end of said linear power supply 34 is connected through the power end of lead with mini-printer 33, realizes to mini-printer 33 power supplies; The switching value output contact of said Programmable Logic Controller 32 connects the control end of pilot relay 35, pilot relay 36, pilot relay 37, pilot relay 38, pilot relay 39 respectively; The switching value output contact of said Programmable Logic Controller 32 is connected with the control end of first solenoid valve 26, realizes leading to the control of vacuum pump 29 gas circuits; The switching value output contact of said Programmable Logic Controller 32 is connected with the control end of second solenoid valve 27, realizes leading to the control of pneumatic pump 30 gas circuits; The switching value output contact of said Programmable Logic Controller 32 is connected with the control end of the 3rd solenoid valve 28, realizes leading to the control of high pure nitrogen bottle gas circuit; The normally opened contact of said pilot relay 35 is connected with the control end of A.C. contactor 40, and the normally opened contact of A.C. contactor 40 is connected with the power input of pneumatic pump 30, to realize the control to pneumatic pump 30; The normally opened contact of said pilot relay 36 is connected with the control end of A.C. contactor 41, and the normally opened contact of A.C. contactor 41 is connected with the power input of vacuum pump 29, to realize the control to vacuum pump 29; The normally opened contact of said pilot relay 37 is connected with outside link plate 20, and is connected with interior web joint 18 through outside link plate 20, and then is connected with the power input of micro air pump 4, to realize the control to micro air pump 4; The normally opened contact of said pilot relay 38 is connected with outside link plate 21, and is connected with interior web joint 19 through outside link plate 21, and then is connected with the power input of mini-fan 6, to realize the control to mini-fan 6; The normally opened contact of said pilot relay 39 is connected with outside link plate 21, and is connected with interior web joint 19 through outside link plate 21, and then is connected with the power input of heating tube 7, to realize the control to heating tube 7.
are with being appreciated that; More than about the specific descriptions of the utility model; Only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment; Those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model, to reach identical technique effect; As long as satisfy the use needs, all within the protection domain of the utility model.
Claims (6)
1. SF
6Micro-water content transmitter caliberating device is characterized in that, comprises SF
6The micro-water content transmitter; Container (2); Micro air pump (4); High precision dew point transducer (5); Inner connection tube (8); Outer connecting pipe (22); The first unidirectional reverse checkvalve (9); The second unidirectional reverse checkvalve (10); The 3rd unidirectional reverse checkvalve (11); The 5th unidirectional reverse checkvalve (13); High-precision pressure transmitter (24); High-precision temperature transmitter (25); First solenoid valve (26); The 3rd solenoid valve (28); Vacuum pump (29); High pure nitrogen bottle (31); Programmable Logic Controller (32) and computing machine (42);
Said micro air pump (4) and high precision dew point transducer (5) place in the container (2); The detection port of said high-precision pressure transmitter (24) and high-precision temperature transmitter (25) communicates with the inner chamber of container (2) respectively;
The said second unidirectional reverse checkvalve (10), the 3rd unidirectional reverse checkvalve (11) and the 5th unidirectional reverse checkvalve (13) communicate with the inner chamber of container (2);
The said first unidirectional reverse checkvalve (9) joins through the gas outlet of inner connection tube (8) with micro air pump (4);
Said SF
6The inlet end of micro-water content transmitter communicates with the first unidirectional reverse checkvalve (9); Its outlet side communicates with the second unidirectional reverse checkvalve (10) through outer connecting pipe (22);
Said vacuum pump (29) joins through first solenoid valve (26) and the 3rd unidirectional reverse checkvalve (11); Said high pure nitrogen bottle (31) joins through the 3rd solenoid valve (28) and the 5th unidirectional reverse checkvalve (13);
The signal output part of said high precision dew point transducer (5), high-precision pressure transmitter (24) and high-precision temperature transmitter (25) connects the analog quantity input end of Programmable Logic Controller (32) successively respectively;
The power port of said micro air pump (4) and vacuum pump (29) joins through the switching value output port of pilot relay and Programmable Logic Controller (32) respectively;
The switching value output port of said Programmable Logic Controller (32) joins with the control end of first solenoid valve (26) and the 3rd solenoid valve (28) respectively successively, to realize leading to the control of vacuum pump (29), high pure nitrogen bottle (31) gas circuit;
The PORT COM of the PORT COM of said Programmable Logic Controller (32) and computing machine (42) joins, to realize communication between the two.
2. a kind of SF according to claim 1
6Micro-water content transmitter caliberating device is characterized in that: the 4th unidirectional reverse checkvalve (12) and second solenoid valve (27) that also be provided with pneumatic pump (30), communicate with container (2) inner chamber; Said pneumatic pump (30) joins through second solenoid valve (27) and the 4th unidirectional reverse checkvalve (12); The power port of said pneumatic pump (30) joins through the switching value output port of pilot relay and Programmable Logic Controller (32); The control end of the switching value output terminal of said Programmable Logic Controller (32) and second solenoid valve (27) joins, to realize leading to the control of pneumatic pump (30) gas circuit.
3. a kind of SF according to claim 2
6Micro-water content transmitter caliberating device is characterized in that: in said container (2), also be provided with mini-fan (6); The switching value output port of said Programmable Logic Controller (32) joins through the power port of pilot relay and mini-fan (6).
4. a kind of SF according to claim 3
6Micro-water content transmitter caliberating device is characterized in that: in said container (2), also be provided with heating tube (7); The switching value output port of said Programmable Logic Controller (32) joins through the power port of pilot relay and heating tube (7).
5. a kind of SF according to claim 4
6Micro-water content transmitter caliberating device is characterized in that: the port at said container (2) is provided with joint flange and can cuts down seat; The said seat that cuts down is fixedly connected with joint flange; Card extender outside card extender reaches in the said both sides of cutting down seat are respectively affixed.
6. a kind of SF according to claim 5
6Micro-water content transmitter caliberating device is characterized in that: also be provided with vacuum meter (23); The detection port of said vacuum meter (23) communicates with container (2) inner chamber; The signal output part of said vacuum meter (23) connects the analog quantity input end of Programmable Logic Controller (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601285U CN202486084U (en) | 2011-12-29 | 2011-12-29 | SF6 micro-water content transducer calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205601285U CN202486084U (en) | 2011-12-29 | 2011-12-29 | SF6 micro-water content transducer calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486084U true CN202486084U (en) | 2012-10-10 |
Family
ID=46960499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205601285U Withdrawn - After Issue CN202486084U (en) | 2011-12-29 | 2011-12-29 | SF6 micro-water content transducer calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202486084U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507649A (en) * | 2011-12-29 | 2012-06-20 | 沈阳仪表科学研究院 | SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device |
| CN102944645A (en) * | 2012-10-26 | 2013-02-27 | 中国电力科学研究院 | SF6 online monitoring apparatus accuracy detection system and method thereof |
| CN104266934A (en) * | 2014-09-12 | 2015-01-07 | 国家电网公司 | Dynamic measurement system device for online micro-water density of SF6 |
| CN107764861A (en) * | 2017-09-30 | 2018-03-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of bearing calibration of highlands dew point hygrometer |
-
2011
- 2011-12-29 CN CN2011205601285U patent/CN202486084U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507649A (en) * | 2011-12-29 | 2012-06-20 | 沈阳仪表科学研究院 | SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device |
| CN102507649B (en) * | 2011-12-29 | 2013-03-20 | 沈阳仪表科学研究院 | SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device |
| CN102944645A (en) * | 2012-10-26 | 2013-02-27 | 中国电力科学研究院 | SF6 online monitoring apparatus accuracy detection system and method thereof |
| CN104266934A (en) * | 2014-09-12 | 2015-01-07 | 国家电网公司 | Dynamic measurement system device for online micro-water density of SF6 |
| CN107764861A (en) * | 2017-09-30 | 2018-03-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of bearing calibration of highlands dew point hygrometer |
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