CN202836631U - Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection - Google Patents

Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection Download PDF

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Publication number
CN202836631U
CN202836631U CN 201220531798 CN201220531798U CN202836631U CN 202836631 U CN202836631 U CN 202836631U CN 201220531798 CN201220531798 CN 201220531798 CN 201220531798 U CN201220531798 U CN 201220531798U CN 202836631 U CN202836631 U CN 202836631U
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level
flange
gas relay
master
fixed end
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冉正华
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冉正华
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Abstract

The utility model provides a single-pipe buchholz relay detecting platform and a centring clamping mechanism special for buchholz relay detection and belongs to the technical field of transformer buchholz relay detection. The single-pipe buchholz relay detecting platform and the centring clamping mechanism special for the buchholz relay detection solves the problems that the existing buchholz relay clamping is low in efficiency and not capable of detecting multi-caliber buchholz relays. The centring clamping mechanism for buchholz relay detection comprises a fixed end and a moving end, wherein a fixed end insertion hole is formed in the fixed end, and the moving end forms a first grade auxiliary sealing guide disc which can detect buchholz relays with various calibers. The utility model further discloses a single-pipe buchholz relay detecting platform which comprises a detection platform rack, an oil tank, a heavy gas flow velocity detecting oil channel, wherein the detection platform rack and the oil tank are arranged on a machine shell, the heavy gas flow velocity detecting oil channel is arranged between the detection platform rack and the oil tank, and the centring clamping mechanism is arranged on the detection platform rack. According to the single-pipe buchholz relay detecting platform and the centring clamping mechanism special for the buchholz relay detection, one detecting pipe is used, and the purpose of the detection of flow velocity fixed value of the buchholz relays with various calibers are achieved by means of the detecting pipe with the same caliber. The single-pipe buchholz relay detecting platform and the centring clamping mechanism special for the buchholz relay detection has the advantages of being small in volume and light in weight.

Description

One-pipe gas relay monitor station and special-purpose centering clamp system thereof
Technical field
The utility model belongs to Transformer Gas Relay detection technique field, be specifically related to a kind of when the analogue transformer internal fault gas relay action mechanism, adopt the industrial computer observation and control technology, answer the consistent sealing flow guiding disc of tested gas relay inside nominal diameter by single pipeline transfer pair that detects, it is long-pending consistent with tested gas relay inside nominal diameter sectional area that change oil stream cuts pasta, thereby satisfy gas relay monitor station and the clamping device thereof of the domestic and international gas relay heavy gas flow speed value detection of different bores, different manufacturers, different model.
Background technology
The gas relay monitor station is when the clamping gas relay, because the manufacturer of tested gas relay, model, bore difference, cause mounting center height, contour length, the flange size for connection of gas relay various, brought many troubles for tested gas relay clamping, work efficiency is extremely low.Labour intensity when reducing clamping, increase work efficiency the clamping problem when needing to solve gas relay and detecting.
Gas relay is a kind of main protective device of power transformer, and the flow velocity setting valve of gas relay and volume setting valve can reliable and effective performance protective effects for gas relay, are important technical parameters.In the widely used oil-filled transformer of electric system; for improving equipment Operation safety and reliability; mostly adopted multiple electric quantity protective; as: differential protection, current quick, zero-sequence current protection, gas relay protection and non electrical quantity protection type; such as pressure relief valve; wherein gas relay is exactly a kind of non electrical quantity protection type measure device commonly used on the oil-immersed power transformer, most important a kind of safeguard measure when claiming also that protection is transformer generation internal fault.Can sensitive action when the degradation fault appears under turn-to-turn and layer short circuit, iron core fault, inside pipe casing fault, the inner broken string of winding and insulation degradation and the pasta in oil-filled transformer inside, in time send fault alarm or excise faulty equipment from electrical network rapidly, the generation of minimizing accident provides powerful guarantee to equipment safety operation.
The sensitivity of gas relay protection is depended on the detection of the heavy gas flow speed value of gas relay and light gas volumetric values and is adjusted.Although for many years electric system has spent a large amount of manpowers at gas relay heavy gas flow speed value and light gas volumetric values context of detection every year, material resources and financial resources, but because the limitation of checkout equipment and detection means, the electric power accident that causes the gas relay frequent movement to cause because of many reasons happens occasionally, for guaranteeing the safe operation of power transformer, how accurately to detect and to adjust gas relay flow velocity value and gas volume value, this has become Operation of Electric Systems, maintenance, the relevant personnel's such as test extensive concern and questions of common interest, this also is to be engaged in the electric power checkout equipment development and production aspect relevant personnel should pay close attention to problem.
The gas relay monitor station is to detect specialized equipment for the used gas relay of electric system, the domestic production gas-actuated relay calibration stand is being relatively backward aspect detection method and the accuracy of detection at present, and similar products mainly adopt following methods aspect flow rate detection:
The flow velocity scaling method: the method is to adopt single-chip microcomputer control technology, by the mode that is applicable to different bores, different model, the domestic and international gas relay flow velocity conversion of different manufacturers data pattern of Erecting and improving.On based on a kind of basis of demarcating flow velocity quantitative measurment method, realize finishing with the signal piping of same caliber the gas-actuated relay calibration stand of the heavy gas flow speed value detection of different bores, different model, the domestic and international various gas relays of different manufacturers.Its method advantage is that signal piping is little, volume is little, sets up single benchmark pipeline, and detected value is accurate when detecting the gas relay consistent with the benchmark pipe diameter.
The deficiency of its maximum be following some:
When detecting with the inconsistent gas relay of non-benchmark pipe diameter sectional area, the oil stream impact area discreteness that gas relay internal actions element is subject to is larger, and this moment is by gathering benchmark pipeline flow velocity detected value and comparing correction by the long-pending consistent detected value of gas relay bore oil flow section.This kind modification method exists error less when gas relay bore and inner an actor's rendering of an operatic tune physical characteristics structure are consistent after the correction; When changing such as gas relay bore and inner an actor's rendering of an operatic tune physical characteristics structure, exist error larger after the correction;
Because process gas relay producer and model are more, cause gas relay internal rows cavity configuration different both at home and abroad.At this moment, when oil stream passed through the inner an actor's rendering of an operatic tune of gas relay, the oily properties of flow that produces differed greatly.So set up the in addition correction factor database of different manufacturers, model, bore of corresponding non-benchmark pipe diameter according to the These characteristics needs, thereby it is relatively poor to cause the method that gas relay is detected adaptability.
Data in the correction database are in makeover process, and the oil stream impact area discreteness that is subject to because of gas relay internal actions element is larger, and revised detected value resultant error is larger.In its makeover process, gas relay should not be demarcated the medium tool for transmitting as the normal flow flow velocity.
In unity reference pipeline gas relay flow velocity checkout equipment, the type selecting of unity reference pipeline measuring apparatus is particularly important, can't cover when detecting the multiple caliber gas relay such as the measuring apparatus of type selecting bore, flowmeter detects the reading result and has larger error.For example: benchmark pipe detection measuring apparatus type selecting is φ 50 turbine flow timing, and range ability is: 4-40m3/h.When φ 80 gas relay flow velocities to be checked were 1m/s ≈ 18.09 m3/h, φ 50 turbo flow meter ranges can satisfy testing requirement.And benchmark pipe detection flow is counted φ 25(φ 25 range abilities and is: in the time of 1-10 m3/h), flowmeter upper limit range can't satisfy testing requirement.
As use turbine flow timing, turbo flow meter front end length of straight pipe to satisfy corresponding inside nominal diameter certain-length relation, corresponding inside nominal diameter certain-length relation is satisfied in the turbo flow meter rear end.When for example the detection straight length before the clamp system fixed end or the detection straight length behind the clamp system moved end can not satisfy certain-length and concern, can cause equipment in using corresponding gas relay inside nominal diameter proving flowmeter calibration process, the flow velocity calibration error is larger.
Summary of the invention
For solving existing gas relay monitor station when the clamping gas relay, the mounting center height of gas relay, contour length, flange size for connection are various, cause the problem that the tested gas relay inefficiency of clamping, labour intensity are large, can't detect many bores gas relay, the utility model provides a kind of gas relay to detect the centering clamp system of usefulness, and its technical scheme is as follows:
Gas relay detects the centering clamp system of usefulness:
Comprise and be arranged on fixed end and the moved end that is used for clamping gas relay to be measured on the stand;
Described fixed end is a base that is fixed on the stand, is provided with the fixed end jack on the fixed end;
Described moved end is installed on the binding clasp on the stand, described binding clasp is used for making the moved end to do to advance or setback with respect to the fixed end vertically, described moved end consists of the secondary sealing of one-level flow guiding disc, comprise the secondary mozzle of the one-level that is installed on the binding clasp, the secondary mozzle front end of one-level is equipped with the secondary ring flange of one-level, be provided with y-type seal ring on the secondary ring flange of one-level, the seal groove that is used on the mounting flange with gas relay to be measured is complementary.
As preferred version of the present utility model:
Described binding clasp is pneumatic type binding clasp or screw thread driven type binding clasp;
Described pneumatic type binding clasp comprises the cylinder that is arranged on the stand, and the piston in the cylinder is separated into front chamber and rear chamber with cylinder, and air intake opening and gas outlet are arranged in the front chamber, and air intake opening and gas outlet are arranged in the rear chamber; The secondary mozzle of described one-level runs through cylinder and piston, and is connected on the piston;
Described screw thread driven type binding clasp comprises front bearing and the rear support that is arranged on the stand, be provided with mounting hole on front bearing and the rear support, the swivel nut of hollow is installed between front bearing and the rear support, the front end of swivel nut is installed in the mounting hole of front bearing with bearing, the rear end of swivel nut is installed in bearing in the mounting hole of rear support, is provided with internal thread in the endoporus of swivel nut; The reversible ratchet device is installed on the excircle of swivel nut, described reversible ratchet device comprises the ratchet on the excircle that is fixedly installed on swivel nut, the gear teeth of ratchet are rectangle, be movably installed with discoid outer ring on the excircle of ratchet, be provided with boss on the outer ring, be provided with the commutation hole of radially extending along ratchet on the boss, the top in commutation hole has spring cup, reversing bar passes spring cup, insert in the commutation hole, the top of reversing bar is a sphenocephaly, described sphenocephaly comprise one along ratchet radially extend face directly with one with face the inclined-plane with angle directly, have spacing collar on the reversing bar of sphenocephaly top, the reversing bar periphery between spring cup and spacing collar is set with spring, and handle also is installed on the boss; Have external thread on the secondary mozzle excircle of described one-level, the secondary mozzle of one-level passes the mounting hole on the front bearing, is sleeved in the endoporus of swivel nut, and the internal thread in the external thread on the secondary mozzle excircle of one-level and the endoporus of swivel nut is intermeshing; Be provided with vertically chute on the secondary mozzle excircle of one-level, chute is sleeved on the guide rail that is convex on the mounting hole of front bearing.
In the such scheme, the rectangle gear teeth of facing directly with ratchet on the sphenocephaly match, during turning handle, when on the reversing bar sphenocephaly face tooth contact with ratchet directly the time, face directly and promote the ratchet rotation, thereby drive the swivel nut rotation, swivel nut drives the secondary mozzle of one-level and does to advance or setback along the guide rail on the front bearing, when handle during along counter-rotation, inclined-plane on the reversing bar sphenocephaly and the tooth contact of ratchet, reversing bar is up along the commutation hole, Compress Spring, and ratchet does not rotate; When after extracting reversing bar Rotate 180 °, inserting again in the commutation hole, by turning handle, can drive the secondary mozzle of one-level and do rightabout moving along the guide rail on the front bearing.This mechanism can make handle drive the secondary mozzle of one-level in less angle and make to clamp motion, convenient operation.
As further preferred version of the present utility model:
Be fitted with one-level primary seal flow guiding disc in the jack of described fixed end, one-level primary seal flow guiding disc comprises one-level master ring flange, one-level master's ring flange is made of the one-level master's flange body in a tubular form that is connected and the one-level master's flange face that is plate-like, one-level master's flange body is inserted in the jack of fixed end, one-level master's flange face uses bolted on the fixed end, be provided with fixedly back taper and y-type seal ring on one-level master's flange face, be respectively applied to be complementary with the mounting hole of gas relay to be measured and the seal groove on the mounting flange; One-level master's flange body is coaxial setting with the secondary mozzle of one-level, and both internal diameters are identical.
As further preferred version of the present utility model:
Be fitted with secondary primary seal flow guiding disc in the jack of described fixed end, be fitted with the secondary sealing of secondary flow guiding disc in the secondary mozzle of described one-level;
Described secondary primary seal flow guiding disc comprises secondary master ring flange, secondary master ring flange is made of the secondary master flange body in a tubular form that is connected and the secondary master flange face that is plate-like, secondary master flange body is inserted in the jack of fixed end, secondary master flange body front end is equipped with the secondary major flow duct, the internal diameter of secondary master flange body is identical with the internal diameter of secondary major flow duct, secondary master flange face uses bolted on the fixed end, be provided with fixedly back taper and y-type seal ring on the secondary master flange face, be respectively applied to be complementary with the mounting hole of gas relay to be measured and the seal groove on the mounting flange;
The secondary sealing of described secondary flow guiding disc comprises the secondary mozzle of secondary that is inserted in the secondary mozzle of one-level, the front end of the secondary mozzle of secondary is equipped with the secondary ring flange of secondary, be provided with y-type seal ring on the secondary ring flange of secondary, the seal groove that is used on the mounting flange with gas relay to be measured is complementary;
The secondary major flow duct is coaxial setting with the secondary mozzle of secondary, and both internal diameters are identical; The internal diameter of secondary major flow duct is less than the internal diameter of one-level master flange body.
In the such scheme, one-level master's flange body 36 is φ 80 bores with the secondary mozzle 42 of one-level, and the secondary mozzle 70 of secondary master flange body 65 and secondary can be selected φ 25 bores, also can select φ 50 bores.Therefore, the centering clamp system of such scheme can be used for detecting the gas relay that bore is 25mm, 50mm and 80mm.
During use, when detecting pipeline oil stream from the fixed end process one-level corresponding with the gas relay latus rectum, secondary or three grades of major flow duct, the oil flow section is long-pending changes into the oil stream consistent with corresponding gas relay latus rectum sectional area by detecting the pipeline sectional area, enters gas relay an actor's rendering of an operatic tune internal trigger action element.Oil stream is by behind gas relay an actor's rendering of an operatic tune, through the one-level consistent with the gas relay latus rectum, secondary or three grades of secondary mozzles of installing on the moved end, oil flow back into and detects in the pipeline, thereby finishes the reducing testing process except the gas relay bore consistent with detecting bore.
The utility model centering clamp system has improved the accuracy of detection that detects many bores gas relay greatly, and can use major and minor sealing flow guiding disc at the clamp device place, different bore proving flowmeters is installed equipment Inspection is carried out deciding inspection and calibration.
The utility model centering clamp system also has reliable, the characteristics such as labour intensity is low, high efficiency, pipeline center's accurate positioning, conversion is convenient, accuracy of detection is high, maintenance cost is low of using.
Amass consistent with tested gas relay bore sectional area for the oil stream that solves the detection pipeline that has the gas relay monitor station now cuts pasta, can't eliminate the oily oil that gas relay internal actions element is subject to that flows and flow impact discrete, thereby cause the problem that error detection value is large, gas relay detects bad adaptability, the utility model also provides a kind of one-pipe gas relay monitor station, and its technical scheme is as follows:
One-pipe gas relay monitor station comprises the stand and the fuel tank that are arranged on the casing, and is connected to the heavy gas flow speed test oil circuit between stand and the fuel tank;
On the described casing the first solenoid valve is installed also, the endpiece of the first solenoid valve and atmosphere conducting, the entrance point of the first solenoid valve is used for being connected with valve on the gas relay to be measured;
Be provided with the centering clamp system on the described stand; Described centering clamp system comprises and is arranged on the stand fixed end and the moved end that is used for clamping gas relay to be measured; Described fixed end is a base that is fixed on the stand, is provided with the fixed end jack on the fixed end; Described moved end is installed on the binding clasp on the stand, described binding clasp is used for making the moved end to do to advance or setback with respect to the fixed end vertically, described moved end consists of the secondary sealing of one-level flow guiding disc, comprise the secondary mozzle of the one-level that is installed on the binding clasp, the secondary mozzle front end of one-level is equipped with the secondary ring flange of one-level, be provided with y-type seal ring on the secondary ring flange of one-level, the seal groove that is used on the mounting flange with gas relay to be measured is complementary;
Described heavy gas flow speed test oil circuit comprises and manual ball valve, oil pump, gas-removing filter and the first reducer pipe by detecting pipeline and be connected in series successively of the oil-out of fuel tank, benchmark pipeline, first flow meter, the first port of three-way pipeline, the second port, the first electrical ball valve, the second reducer pipe and the constant-current stabilizer of three-way pipeline that the end that detects pipeline is installed on the fixed end with flange; Detect the bore of pipeline greater than the bore of benchmark pipeline;
Described heavy gas flow speed test oil circuit also comprises the second electrical ball valve, the second flowmeter that is connected in series successively by bypass duct with the third connectivity mouth of three-way pipeline, and the end of bypass duct is connected on the detection pipeline in the outside, fixed end; The bore of bypass duct is less than the bore of benchmark pipeline;
Described heavy gas flow speed test oil circuit also comprises the detection pipeline between the oil return opening on the secondary mozzle of the one-level that is connected on the moved end and the fuel tank, and the detection pipeline in the outside, moved end is provided with the 3rd electrical ball valve.
Detect pipeline 12 in the such scheme and can adopt φ 80 bores, bypass duct 30 can adopt φ 25 bores, and benchmark pipeline 29 can adopt φ 50 bores.
Have two in the such scheme and measure pipeline, be benchmark pipeline and bypass duct, can be used for measuring the gas relay to be measured of three kinds of bores: open the first electrical ball valve by industrial computer, close the second electrical ball valve, by the first flow meter on the benchmark pipeline, can calibrate is the flow velocity value of the gas relay to be measured of 50mm and 80mm; Close the first electrical ball valve by industrial computer, open the second electrical ball valve, by the second flowmeter on the bypass duct, can calibrate is the flow velocity value of the gas relay to be measured of 25mm.
In the such scheme, because the first flow meter is arranged on the benchmark pipeline, this flowmeter front end length of straight pipe satisfies 8 times of length of corresponding inside nominal diameter, and flowmeter rear end length of straight pipe satisfies 5 times of length of corresponding inside nominal diameter.And the bore of the detection pipeline of benchmark pipe ends is all greater than the bore of benchmark pipeline, therefore, the ducted oily Flow Velocity of benchmark is greater than the ducted oily Flow Velocity of detection, thus the flow velocity of fluid stable (Measurement sensibility) when making the ducted first-class flowmeter measurement of benchmark.When flowmeter accuracy was 0.2%, flow was counted φ 80(range ability and is: in the time of 10-100m3/h), this time error is 0.18 m3/h; Flow is counted φ 50(range ability: in the time of 4-40 m3/h), this time error is 0.072 m3/h; Flow is counted φ 25(range ability: in the time of 1-10 m3/h), error is 0.018 m3/h; Thereby can find out that when detecting gas relay to be measured flowmeter should select to satisfy the flowmeter that detects range ability and error amount minimum, this moment, accuracy of detection was best.
As preferred version of the present utility model:
Described binding clasp is pneumatic type binding clasp or screw thread driven type binding clasp;
Described pneumatic type binding clasp comprises the cylinder that is arranged on the stand, and the piston in the cylinder is separated into front chamber and rear chamber with cylinder, and air intake opening and gas outlet are arranged in the front chamber, and air intake opening and gas outlet are arranged in the rear chamber; The secondary mozzle of described one-level runs through cylinder and piston, and is connected on the piston;
Described screw thread driven type binding clasp comprises front bearing and the rear support that is arranged on the stand, be provided with mounting hole on front bearing and the rear support, the swivel nut of hollow is installed between front bearing and the rear support, the front end of swivel nut is installed in the mounting hole of front bearing with bearing, the rear end of swivel nut is installed in bearing in the mounting hole of rear support, is provided with internal thread in the endoporus of swivel nut; The reversible ratchet device is installed on the excircle of swivel nut, described reversible ratchet device comprises the ratchet on the excircle that is fixedly installed on swivel nut, the gear teeth of ratchet are rectangle, be movably installed with discoid outer ring on the excircle of ratchet, be provided with boss on the outer ring, be provided with the commutation hole of radially extending along ratchet on the boss, the top in commutation hole has spring cup, reversing bar passes spring cup, insert in the commutation hole, the top of reversing bar is a sphenocephaly, described sphenocephaly comprise one along ratchet radially extend face directly with one with face the inclined-plane with angle directly, have spacing collar on the reversing bar of sphenocephaly top, the reversing bar periphery between spring cup and spacing collar is set with spring, and handle also is installed on the boss; Have external thread on the secondary mozzle excircle of described one-level, the secondary mozzle of one-level passes the mounting hole on the front bearing, is sleeved in the endoporus of swivel nut, and the internal thread in the external thread on the secondary mozzle excircle of one-level and the endoporus of swivel nut is intermeshing; Be provided with vertically chute on the secondary mozzle excircle of one-level, chute is sleeved on the guide rail that is convex on the mounting hole of front bearing.
As further improvement project of the present utility model:
Be fitted with one-level primary seal flow guiding disc in the jack of described fixed end, one-level primary seal flow guiding disc comprises one-level master ring flange, one-level master's ring flange is made of the one-level master's flange body in a tubular form that is connected and the one-level master's flange face that is plate-like, one-level master's flange body is inserted in the jack of fixed end, one-level master's flange face uses bolted on the fixed end, be provided with fixedly back taper and y-type seal ring on one-level master's flange face, be respectively applied to be complementary with the mounting hole of gas relay to be measured and the seal groove on the mounting flange; One-level master's flange body is coaxial setting with the secondary mozzle of one-level, and both internal diameters are identical, and identical with the internal diameter that detects pipeline.
As further improvement project of the present utility model:
Be fitted with secondary primary seal flow guiding disc in the jack of described fixed end, be fitted with the secondary sealing of secondary flow guiding disc in the secondary mozzle of described one-level;
Described secondary primary seal flow guiding disc comprises secondary master ring flange, secondary master ring flange is made of the secondary master flange body in a tubular form that is connected and the secondary master flange face that is plate-like, secondary master flange body is inserted in the jack of fixed end, secondary master flange body front end is equipped with the secondary major flow duct, the secondary major flow duct is inserted in the detection pipeline in the outside, fixed end, the internal diameter of secondary master flange body is identical with the internal diameter of secondary major flow duct, secondary master flange face uses bolted on the fixed end, be provided with fixedly back taper and y-type seal ring on the secondary master flange face, be respectively applied to be complementary with the mounting hole of gas relay to be measured and the seal groove on the mounting flange;
The secondary sealing of described secondary flow guiding disc comprises the secondary mozzle of secondary that is inserted in the secondary mozzle of one-level, the front end of the secondary mozzle of secondary is equipped with the secondary ring flange of secondary, be provided with y-type seal ring on the secondary ring flange of secondary, the seal groove that is used on the mounting flange with gas relay to be measured is complementary;
The secondary major flow duct is coaxial setting with the secondary mozzle of secondary, and both internal diameters are identical; The internal diameter of secondary major flow duct is less than the internal diameter of one-level master flange body.
As further improvement project of the present utility model:
The light gas volume that also is equipped with on the described casing is tested pipeline and sealing property test pipeline;
Light gas volume test pipeline comprises the first solenoid valve, one-level primary seal flow guiding disc, detects pipeline, and be serially connected in oil return opening on the second solenoid valve on the detection pipeline in the fixed end outside, volume pump, the fuel tank and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve;
Sealing property test pipeline comprises the first solenoid valve, one-level primary seal flow guiding disc, be connected to pressure transducer and accumulator on the detection pipeline in the outside, fixed end, and the detection pipeline between oil-out and the fixed end, and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve formation.
As further improvement project of the present utility model:
Be provided with oil temperature heating controller and liquid level gauge on the described fuel tank;
Described oil pump is electrically connected with frequency converter;
Also be provided with industrial computer, touch LCD screen and signals collecting terminal on the casing, industrial computer is connected with power supply, and industrial computer is electrically connected with touch LCD screen, oil temperature heating controller, frequency converter, first flow meter, the first electrical ball valve, the second electrical ball valve, the second flowmeter, the second solenoid valve, volume pump, the first solenoid valve, pressure transducer and signals collecting terminal.
The utility model by benchmark pipeline and benchmark bypass duct reducing to the mode that detects the pipeline combination, detecting the pipeline up conversion sealing flow guiding disc consistent with corresponding tested gas relay bore, it is long-pending consistent with tested gas relay bore sectional area to change oil stream section pasta, eliminate the oily oil that gas relay internal actions element is subject to that flows and flow impact discrete, thereby satisfy different bores, different manufacturers, the demand that the domestic and international gas relay heavy gas flow speed value of different model detects has simple to operate, reliability is high, labour intensity is low, high efficiency, the accuracy of detection high.Can reach the gas relay monitor station accuracy of detection requirement of the corresponding gas with various relay bore test format in many bores or single port footpath, and can at the different corresponding inside nominal diameter standard caliberating devices of the position clamping that detects gas relay, demarcate calibration to different bore flow velocity values.
There is not the correction database in detection system in the utility model, to the heavy gas flow flow speed value of gas relay, adopts and directly measures detection mode.This mode adaptability is higher, thereby satisfies the detection of the heavy gas flow flow speed value of different inside nominal diameter gas relays.
Industrial computer in the utility model comprises that by communication interface RS232 interface, Ethernet interface and USB interface are connected with signals collecting terminal (the signals collecting terminal is used for gathering light gas and heavy gas actuating signal), mini-printer, touch LCD screen, virtual projection keyboards, wireless router, 3G communication apparatus.
It is as follows to use above-mentioned one-pipe gas relay monitor station that the gas relay to be measured of φ 80, φ 50 or φ 25 is carried out the method that heavy gas flow speed detects:
Step 1: gas relay clamping to be measured between fixed end and moved end, is selected the conversion sealing flow guiding disc consistent with gas relay bore to be measured;
Step 2: detection signal presss from both sides an end and links to each other with tripping operation, the alerting signal terminal of gas relay to be measured, and the other end links to each other with the signals collecting terminal;
Step 3: connect the working power of gas relay monitor station, touch LCD screen display system initial interface enters the gas relay flow velocity detected parameters at system interface by corresponding operating the interface is set;
Step 4: after setting is finished, industrial computer system starts oil pump by frequency converter, oil circuit and gas relay internal cavity to be measured are full of test oil, after the oil-filled end, industrial computer system is regulated pump speed by frequency converter, makes the oily Flow Velocity in the signal piping progressively increase to gas relay baffle plate action connection point to be measured adhesive from 0, and industrial computer receives contact adhesive heavy gas flow speed value and detects end signal, stop by the Frequency Converter Control oil pump, finish heavy gas flow speed value and detect;
Step 5: when recording the adhesive of gas relay baffle plate action connection point, the flowmeter flow velocity value that is connected with the benchmark pipeline, this value are the heavy gas action flow speed value of gas relay to be measured;
Step 6: the testing result of gas relay to be measured can be printed or wireless printing equipment printout standard A 4 paper examining reports by mini-printer, and can select to preserve, delete, have access to historical data, also can upload in the computing machine by the industrial computer communication port and be further processed.
Specifically, described gas relay to be measured to φ 80 carries out the method that heavy gas flow speed detects and may further comprise the steps:
One-level master's flange body of φ 80 bores is inserted in the jack of fixed end; Open the first electrical ball valve by industrial computer, close the second electrical ball valve, by the flow velocity value of the fixed gas relay to be measured of the first flow instrumentation on the benchmark pipeline; Then open open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, open the 3rd electrical ball valve that the rear portion, moved end links to each other, industrial computer is regulated oil pump by frequency converter, make oil circuit and gas relay internal cavity to be measured be full of test oil, close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured; Industrial computer is regulated pump speed by frequency converter, make the oily Flow Velocity in the signal piping progressively increase to gas relay baffle plate action connection point to be measured adhesive from 0, industrial computer receives contact adhesive heavy gas flow speed value and detects end signal, finishes the gas relay flow velocity value and detects; When industrial computer is recorded the adhesive of gas relay baffle plate tripping operation contact, the first flow instrumentation constant flow flow speed value that is connected with the benchmark pipeline, this value is the heavy gas action flow speed value of the gas relay to be measured of φ 80;
The method that described gas relay to be measured to φ 50 carries out the heavy gas flow speed detection may further comprise the steps:
The secondary master flange body of φ 50 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 50 bores is inserted in the secondary mozzle of one-level, open the first electrical ball valve by industrial computer, close the second electrical ball valve, by the flow velocity value of the fixed gas relay to be measured of the first flow instrumentation on the benchmark pipeline; Then open open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, open the 3rd electrical ball valve that the rear portion, moved end links to each other, industrial computer is regulated oil pump by frequency converter, make oil circuit and gas relay internal cavity to be measured be full of test oil, close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured; Industrial computer is regulated pump speed by frequency converter, make the oily Flow Velocity in the signal piping progressively increase to gas relay baffle plate action connection point to be measured adhesive from 0, industrial computer receives contact adhesive heavy gas flow speed value and detects end signal, finishes the gas relay flow velocity value and detects; When industrial computer is recorded the adhesive of gas relay baffle plate tripping operation contact, the first flow instrumentation constant flow flow speed value that is connected with the benchmark pipeline, this value is the heavy gas action flow speed value of the gas relay to be measured of φ 50;
The method that described gas relay to be measured to φ 25 carries out the heavy gas flow speed detection may further comprise the steps:
The secondary master flange body of φ 25 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 25 bores is inserted in the secondary mozzle of one-level, close the first electrical ball valve by industrial computer, open the second electrical ball valve, by the flow velocity value of the fixed gas relay to be measured of the second flow measurement on the bypass duct; Then open open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, open the 3rd electrical ball valve that the rear portion, moved end links to each other, industrial computer is regulated oil pump by frequency converter, make oil circuit and gas relay internal cavity to be measured be full of test oil, close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured; Industrial computer is regulated pump speed by frequency converter, make the oily Flow Velocity in the signal piping progressively increase to gas relay baffle plate action connection point to be measured adhesive from 0, industrial computer receives contact adhesive heavy gas flow speed value and detects end signal, finishes the gas relay flow velocity value and detects; When industrial computer is recorded the adhesive of gas relay baffle plate tripping operation contact, the second flow measurement constant flow flow speed value that is connected with bypass duct, this value is the heavy gas action flow speed value of the gas relay to be measured of φ 25.
It is as follows to use above-mentioned one-pipe gas relay monitor station that the gas relay to be measured of φ 80, φ 50 or φ 25 is carried out the method that light gas volumetric values detects:
The method that the light gas volumetric values of carrying out described gas relay to be measured to φ 80 detects may further comprise the steps:
One-level master's flange body of φ 80 bores is inserted in the jack of fixed end; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close the first electrical ball valve, the second electrical ball valve, oil pump, open the second solenoid valve that links to each other with volume pump by industrial computer control, start volume pump, and the liquid displacement of real-time accumulated volume pump, when gas relay inner chamber pasta to be measured drops to when making the adhesive of the light gas contact of gas relay to be measured, industrial computer receives the light gas volumetric values of contact adhesive and detects end signal, finishing gas action volumetric values detects, when industrial computer is recorded the adhesive of gas relay float signal contact, the accumulative total liquid displacement of volume pump, this value are the light gas action volumetric values of gas relay to be measured;
The method that the light gas volumetric values of carrying out described gas relay to be measured to φ 50 detects may further comprise the steps:
The secondary master flange body of φ 50 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 50 bores is inserted in the secondary mozzle of one-level; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close the first electrical ball valve, the second electrical ball valve, oil pump, open the second solenoid valve that links to each other with volume pump by industrial computer control, start volume pump, and the liquid displacement of real-time accumulated volume pump, when gas relay inner chamber pasta to be measured drops to when making the adhesive of the light gas contact of gas relay to be measured, industrial computer receives the light gas volumetric values of contact adhesive and detects end signal, finishing gas action volumetric values detects, when industrial computer is recorded the adhesive of gas relay float signal contact, the accumulative total liquid displacement of volume pump, this value are the light gas action volumetric values of gas relay to be measured;
The method that the light gas volumetric values of carrying out described gas relay to be measured to φ 25 detects may further comprise the steps:
The secondary master flange body of φ 25 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 25 bores is inserted in the secondary mozzle of one-level; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close the first electrical ball valve, the second electrical ball valve, oil pump, open the second solenoid valve that links to each other with volume pump by industrial computer control, start volume pump, and the liquid displacement of real-time accumulated volume pump, when gas relay inner chamber pasta to be measured drops to when making the adhesive of the light gas contact of gas relay to be measured, industrial computer receives the light gas volumetric values of contact adhesive and detects end signal, finishing gas action volumetric values detects, when industrial computer is recorded the adhesive of gas relay float signal contact, the accumulative total liquid displacement of volume pump, this value are the light gas action volumetric values of gas relay to be measured.
It is as follows to use above-mentioned one-pipe gas relay monitor station that the gas relay to be measured of φ 80, φ 50 or φ 25 is carried out the method that sealing property detects:
The method that the sealing property of carrying out described gas relay to be measured to φ 80 detects may further comprise the steps:
One-level master's flange body of φ 80 bores is inserted in the jack of fixed end; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, industrial computer is regulated oil pump by frequency converter, and pipeline pressure is progressively increased from 0, pressure transducer Real-Time Monitoring and the demonstration line pressure of industrial computer by linking to each other with pipeline; When pressure reached predefined force value, the oil pump that the assurance frequency converter is regulated cut out first the first electrical ball valve, the second electrical ball valve under constant rotating speed, then close oil pump, and system enters the pressurize countdown; Industrial computer recorded real-time pressure value in the pipeline automatically after the pressurize countdown finished, this value is the sealing load value of gas relay to be measured, if the sealing force value is more than or equal to the specified sealing load value of gas relay to be measured, then the sealing property of gas relay to be measured is qualified;
The method that the sealing property of carrying out described gas relay to be measured to φ 50 detects may further comprise the steps:
The secondary master flange body of φ 50 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 50 bores is inserted in the secondary mozzle of one-level; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, industrial computer is regulated oil pump by frequency converter, and pipeline pressure is progressively increased from 0, pressure transducer Real-Time Monitoring and the demonstration line pressure of industrial computer by linking to each other with pipeline; When pressure reached predefined force value, the oil pump that the assurance frequency converter is regulated cut out first the first electrical ball valve, the second electrical ball valve under constant rotating speed, then close oil pump, and system enters the pressurize countdown; Industrial computer recorded real-time pressure value in the pipeline automatically after the pressurize countdown finished, this value is the sealing load value of gas relay to be measured, if the sealing force value is more than or equal to the specified sealing load value of gas relay to be measured, then the sealing property of gas relay to be measured is qualified;
The method that the sealing property of carrying out described gas relay to be measured to φ 25 detects may further comprise the steps:
The secondary master flange body of φ 25 bores is inserted in the jack of fixed end, the secondary mozzle of the secondary of φ 25 bores is inserted in the secondary mozzle of one-level; Open the first electrical ball valve, the second electrical ball valve and the first solenoid valve by industrial computer, close the 3rd electrical ball valve, industrial computer starts oil pump by frequency converter, makes oil circuit and gas relay internal cavity to be measured be full of test oil; Then close open to atmosphere the first solenoid valve that links to each other with gas relay to be measured, industrial computer is regulated oil pump by frequency converter, and pipeline pressure is progressively increased from 0, pressure transducer Real-Time Monitoring and the demonstration line pressure of industrial computer by linking to each other with pipeline; When pressure reached predefined force value, the oil pump that the assurance frequency converter is regulated cut out first the first electrical ball valve, the second electrical ball valve under constant rotating speed, then close oil pump, and system enters the pressurize countdown; Industrial computer recorded real-time pressure value in the pipeline automatically after the pressurize countdown finished, this value is the sealing load value of gas relay to be measured, if the sealing force value is more than or equal to the specified sealing load value of gas relay to be measured, then the sealing property of gas relay to be measured is qualified.
The utlity model has following advantage:
The utility model device adopts a detection pipeline, by detecting the clamp device conversion major and minor sealing flow guiding disc consistent with corresponding tested gas relay bore of installing on the pipeline, it is long-pending consistent with tested gas relay inside nominal diameter sectional area to change oil stream section pasta, reach detection pipeline with same bore by the actual flow velocity mensuration, finish the purpose of various different bore gas relay flow velocity setting examinations.This device reduces aspect weight and volume greatly, be adopt same method of testing existing equipment 1/3rd, use installation and transportation to bring great convenience to the user;
The utility model device adopts a kind of actual flow velocity mensuration, by single benchmark pipeline and single benchmark bypass duct reducing to detecting the pipeline array mode.Detection pipeline changing by gas relay clamp device two ends inserts the major and minor sealing flow guiding disc consistent with tested gas relay bore, realize that conversion oil flow section is long-pending consistent with gas relay inside nominal diameter to be measured, what the oil stream that elimination oil stream is subject to gas relay internal actions element impacted disperses.Make flowmeter blanketing gas relay test flow rate scope, flowmeter bypass branch blanketing gas relay test flow rate scope reaches with the signal piping of same bore and finishes the purpose that various different bore gas relay flow velocity values quantitatively detect;
The utility model device has adopted high-precision volume pump, automatically controls the detection of finishing light gas volume by industrial computer system, and Real-Time Monitoring and the light gas volume measurement of demonstration gas relay process.The volume pump body has independent metering display system, can independently use and be convenient to loading and unloading, can dismantle separately censorship according to operating position, after the censorship censorship correction factor be filled in to the industrial computer software systems, system will revise the light gas volumetric metering of calibration unit automatically.By this mode, make light gas volumetric metering unit have the characteristics such as precision height, good reproducibility;
The utility model device adopts high-precision pressure sensor, automatically controls the detection of finishing sealing property by industrial computer system, and Real-Time Monitoring and demonstration gas relay sealing detection line pressure.The pressure transducer body has independent display system, can independently use and be convenient to loading and unloading, can dismantle separately censorship according to operating position, after the censorship censorship correction factor is filled in to the industrial computer software systems, and system will revise correction power metering units automatically.By this mode, make the pressure measurement unit have the characteristics such as precision height, good reproducibility;
This device adopts touch screen to add the input operation mode of virtual projection keyboards mouse.(annotate: operating personnel can pass through full-color liquid crystal in the process of the test, see intuitively in the testing process the dynamic procedure for displaying of each test item to control full-color embedded liquid crystal touch screen by industrial computer system.For example: during flow rate detection, the process that flow velocity increases progressively from low to high.), operating personnel only need to select test item from touch screen, and click confirms that equipment will be finished the full-automatic detection of selected item automatically after finishing.By industrial computer system control virtual projection key mouse, this technology is two-dimensional projection's imaging, on the work top in virtual projection device the place ahead, projection goes out the redness virtual projection keyboards consistent with the mark keyboard, and operating personnel can edit the test report content with this keyboard.Operating personnel also can pass through this keyboard shortcut, finish the switching of keyboard and mouse.Avoided when operating equipment, the transformer greasy dirt situation that sensitivity decline or even input equipment damage occurs with after keyboard and mouse contact;
This device adopts the remote technology support, has disposed Wireless Communication Equipment in this system and has reserved the network insertion mouth.Be furnished with wireless printing equipment, can be long-range to wireless printing equipment output (30 meters of wireless coverages), printablely go out standard A4 paper examining report.Need technical support such as on-the-spot user of service, device just access perimeter network or 3G network, the remote port technician can carry out remote control and technological guidance and equipment software upgrading to equipment;
This device equipment on the same plane of the opposite side of fixed end has the moved end, is provided with the reversible ratchet device on the moved end, is installed in handle on the reversible ratchet device and controls the moved end by swivel nut and do flexible rectilinear motion.
Description of drawings
Fig. 1 is the front view of one-pipe gas relay monitor station;
Fig. 2 is the rear view of one-pipe gas relay monitor station;
Fig. 3 is the vertical view of one-pipe gas relay monitor station;
Fig. 4 is the vertical view of the bottom equipment of the one-pipe gas relay monitor station among Fig. 1;
Fig. 5 is the front view that the centering clamp system of the major and minor sealing flow guiding disc of one-level is installed;
Fig. 6 is the cut-open view of the reversible ratchet device among Fig. 5;
Fig. 7 is the schematic perspective view of the stand among Fig. 5;
Fig. 8 is the cut-open view of pneumatic type binding clasp;
Fig. 9 is the front view that the centering clamp system of the major and minor sealing flow guiding disc of secondary is installed;
Figure 10 is the front view that the one-pipe gas relay monitor station of the major and minor sealing flow guiding disc of secondary is installed;
Figure 11 is the schematic perspective view of one-pipe gas relay monitor station.
Embodiment
One-pipe gas relay monitor station shown in Fig. 1-11 comprises the stand 34 and the fuel tank 1 that are arranged on the casing, and is connected to the heavy gas flow speed test oil circuit between stand 34 and the fuel tank 1;
Endpiece and atmosphere conducting that the first solenoid valve 24, the first solenoid valves 24 also are installed on the described casing, the entrance point of the first solenoid valve 24 are used for being connected with valve on the gas relay 18 to be measured;
Be provided with the centering clamp system on the described stand 34; Described centering clamp system comprises and is arranged on the stand 34 fixed end 13 and the moved end 17 that is used for clamping gas relay 18 to be measured; Described fixed end 13 is provided with fixed end jack 64 for being fixed on a base on the stand 34 on the fixed end 13; Described moved end 17 is installed on the binding clasp on the stand 34, described binding clasp is used for making moved end 17 to do to advance or setback with respect to fixed end 13 vertically, described moved end 17 consists of the secondary sealing of one-level flow guiding disc, comprise the secondary mozzle 42 of the one-level that is installed on the binding clasp, secondary mozzle 42 front ends of one-level are equipped with the secondary ring flange 41 of one-level, be provided with y-type seal ring 33 on the secondary ring flange 41 of one-level, the seal groove that is used on the mounting flange with gas relay 18 to be measured is complementary;
Described heavy gas flow speed test oil circuit comprises and manual ball valve 4, oil pump 6, gas-removing filter 31 and the first reducer pipe 7 by detecting pipeline 12 and be connected in series successively of the oil-out 27 of fuel tank 1, benchmark pipeline 29, first flow meter 8, the first port of three-way pipeline 9, the second port, the first electrical ball valve 10, the second reducer pipe 11 and the constant-current stabilizer 14 of three-way pipeline 9 that the end of detection pipeline 12 is installed on the fixed end 13 with flange; Detect the bore of pipeline 12 greater than the bore of benchmark pipeline 29;
Described heavy gas flow speed test oil circuit also comprises the second electrical ball valve 15, the second flowmeter 16 that is connected in series successively by bypass duct 30 with the third connectivity mouth of three-way pipeline 9, and the end of bypass duct 30 is connected on the detection pipeline 12 in 13 outsides, fixed end; The bore of bypass duct 30 is less than the bore of benchmark pipeline 29;
Described heavy gas flow speed test oil circuit also comprises the detection pipeline 12 between the oil return opening 19 on the secondary mozzle 42 of the one-level that is connected on the moved end 17 and the fuel tank 1, and the detection pipeline 12 in 17 outsides, moved end is provided with the 3rd electrical ball valve 22.
Described binding clasp is pneumatic type binding clasp or screw thread driven type binding clasp;
As shown in Figure 8, described pneumatic type binding clasp comprises the cylinder 56 that is arranged on the stand 34, piston 57 in the cylinder 56 is separated into front chamber 58 and rear chamber 59 with cylinder 56, and air intake opening 60 and gas outlet 61 are arranged in the front chamber 58, and air intake opening 62 and gas outlet 63 are arranged in the rear chamber 59; The secondary mozzle 42 of described one-level runs through cylinder 56 and piston 57, and is connected on the piston 57;
As shown in Figure 5, described screw thread driven type binding clasp comprises front bearing 32 and the rear support 35 that is arranged on the stand 34, be provided with mounting hole on front bearing 32 and the rear support 35, the swivel nut 43 of hollow is installed between front bearing 32 and the rear support 35, the front end of swivel nut 43 is installed in the mounting hole of front bearing 32 with bearing, the rear end of swivel nut 43 is installed in bearing in the mounting hole of rear support 35, is provided with internal thread in the endoporus of swivel nut 43; The reversible ratchet device is installed on the excircle of swivel nut 43, described reversible ratchet device comprises the ratchet 40 on the excircle that is fixedly installed on swivel nut 43, the gear teeth of ratchet 40 are rectangle, be movably installed with discoid outer ring 44 on the excircle of ratchet 40, be provided with boss 45 on the outer ring 44, be provided with the commutation hole 46 of radially extending along ratchet 40 on the boss 45, the top in commutation hole 46 has spring cup 48, reversing bar 47 passes spring cup 48, insert in the commutation hole 46, the top of reversing bar 47 is a sphenocephaly, described sphenocephaly comprise one along ratchet 40 radially extend face directly 51 and one with face 51 inclined-planes 52 with angle directly, have spacing collar 49 on the reversing bar 47 of sphenocephaly top, reversing bar 47 peripheries between spring cup 48 and spacing collar 49 are set with spring 50, and handle 54 also is installed on the boss 45; Have external thread on secondary mozzle 42 excircles of described one-level, the secondary mozzle 42 of one-level passes the mounting hole on the front bearing 32, is sleeved in the endoporus of swivel nut 43, and the internal thread in the external thread on secondary mozzle 42 excircles of one-level and the endoporus of swivel nut 43 is intermeshing; Be provided with vertically chute 53 on secondary mozzle 42 excircles of one-level, chute 53 is sleeved on the guide rail that is convex 55 on the mounting hole of front bearing 32, and guide rail 55 as shown in Figure 9.
As shown in Figure 5, be fitted with one-level primary seal flow guiding disc in the described fixed end jack 64, one-level primary seal flow guiding disc comprises one-level master ring flange, one-level master's ring flange is made of the one-level master's flange body in a tubular form 36 that is connected and the one-level master's flange face 37 that is plate-like, one-level master's flange body 36 is inserted in the fixed end jack 64, one-level master's flange face 37 usefulness bolted are on fixed end 13, be provided with fixedly back taper 38 and y-type seal ring 39 on one-level master's flange face 37, be respectively applied to be complementary with the mounting hole of gas relay 18 to be measured and the seal groove on the mounting flange; One-level master's flange body 36 is coaxial setting with the secondary mozzle 42 of one-level, and both internal diameters are identical, and identical with the internal diameter that detects pipeline 12.
As shown in Figure 9, be fitted with secondary primary seal flow guiding disc in the described fixed end jack 64, be fitted with the secondary sealing of secondary flow guiding disc in the secondary mozzle 42 of described one-level;
Described secondary primary seal flow guiding disc comprises secondary master ring flange, secondary master ring flange is made of the secondary master flange body in a tubular form 65 that is connected and the secondary master flange face 66 that is plate-like, secondary master flange body 65 is inserted in the fixed end jack 64, secondary master flange body 65 front ends are equipped with secondary major flow duct 67, secondary major flow duct 67 is inserted in the detection pipeline 12 in 13 outsides, fixed end, the internal diameter of secondary master flange body 65 is identical with the internal diameter of secondary major flow duct 67, secondary master flange face 66 usefulness bolted are on fixed end 13, be provided with fixedly back taper 69 and y-type seal ring 68 on the secondary master flange face 66, be respectively applied to be complementary with the mounting hole of gas relay 18 to be measured and the seal groove on the mounting flange;
The secondary sealing of described secondary flow guiding disc comprises the secondary mozzle 70 of secondary that is inserted in the secondary mozzle 42 of one-level, the front end of the secondary mozzle 70 of secondary is equipped with the secondary ring flange 71 of secondary, be provided with y-type seal ring 72 on the secondary ring flange 71 of secondary, the seal groove that is used on the mounting flange with gas relay 18 to be measured is complementary;
Secondary major flow duct 67 is coaxial setting with the secondary mozzle 70 of secondary, and both internal diameters are identical; The internal diameter of secondary major flow duct 67 is less than the internal diameter of one-level master flange body 36.
Shown in Fig. 1,2,3,4,10,11, the light gas volume that also is equipped with on the described casing is tested pipeline and sealing property test pipeline;
Light gas volume test pipeline comprises the first solenoid valve 24, one-level primary seal flow guiding disc, detects pipeline 12, and be serially connected in oil return opening 19 on the second solenoid valve 20 on the detection pipeline 12 in 13 outsides, fixed end, volume pump 23, the fuel tank 1 and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve 22;
Sealing property test pipeline comprises the first solenoid valve 24, one-level primary seal flow guiding disc, be connected to pressure transducer 21 and accumulator on the detection pipeline 12 in 13 outsides, fixed end, and the detection pipeline 12 between oil-out 27 and the fixed end 13, and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve 22 formations.Accumulator is be used to doing leakage test, be used for pipeline pressure process and play pressure maintaining effect, just automatic pressure release when pipeline does not have pressure.
Be provided with oil temperature heating controller 2 and liquid level gauge 3 on the described fuel tank 1;
Described oil pump 6 is electrically connected with frequency converter 5;
Also be provided with industrial computer 25, touch LCD screen 26 and signals collecting terminal 28 on the casing, industrial computer 25 is connected with power supply, and industrial computer 25 is electrically connected with touch LCD screen 26, oil temperature heating controller 2, frequency converter 5, first flow meter 8, the first electrical ball valve 10, the second electrical ball valve 15, the second flowmeter 16, the second solenoid valve 20, volume pump 23, the first solenoid valve 24, pressure transducer 21 and signals collecting terminal 28.
Described industrial computer 25 is connected with power supply, is used for the switching of control the first electrical ball valve 10, the second electrical ball valve 15 realization benchmark pipelines; Described industrial computer 25 is realized the control of oily Flow Velocity by the start and stop of frequency converter 5 control oil pumps 6, the applying of seal test pressure; The traffic pulse of described industrial computer 25 record first flow meters 16, volume pump 23 is realized the detection of flow velocity, volume, gathers the control that seal test pressure is realized seal test pressure by pressure transducer 21.
Detection pipeline 12 in the utility model is φ 80 bores, and bypass duct 30 is φ 25 bores, and benchmark pipeline 29 is φ 50 bores.
One-level master's flange body 36 is φ 80 bores with the secondary mozzle 42 of one-level, and the secondary mozzle 70 of secondary master flange body 65 and secondary can be selected φ 25 bores, also can select φ 50 bores.
The heavy gas flow speed detection method of above-mentioned one-pipe gas relay monitor station is:
With gas relay 18 clampings to be measured between fixed end 13 and moved end 17, select the one-level consistent with gas relay 18 bores to be measured, secondary or three grades of primary seal flow guiding discs, and one-level, the secondary sealing of secondary or three grades flow guiding disc clamping is in the fixed end 13 and moved end 17, select control to open first electrical ball valve 10 at oil pump 6 endpiece three-way pipelines 9 places by industrial computer 25, the second electrical ball valve 15, specifically, when the detection bore is the gas relay 18 to be measured of 80mm, in fixed end jack 64, insert one-level primary seal flow guiding disc, and moved end 17 namely is made of the secondary sealing of one-level flow guiding disc itself, open the first electrical ball valve 10 by industrial computer 25, close the second electrical ball valve 15, measure the flow velocity value of gas relay 18 to be measured by the first flow meter 8 on the benchmark pipeline 29; When the detection bore is the gas relay 18 to be measured of 50mm, plug-in mounting secondary primary seal flow guiding disc in fixed end jack 64, the secondary sealing of plug-in mounting secondary flow guiding disc in the secondary mozzle 42 of one-level, namely the secondary master flange body 65 with φ 50 bores is inserted in the fixed end jack 64, the secondary mozzle 70 of the secondary of φ 50 bores is inserted in the secondary mozzle 42 of one-level, open the first electrical ball valve 10 by industrial computer 25, close the second electrical ball valve 15, measure the flow velocity value of gas relay 18 to be measured by the first flow meter 8 on the benchmark pipeline 29; When the detection bore is the gas relay 18 to be measured of 25mm, the secondary master flange body 65 of φ 25 bores is inserted in the fixed end jack 64, the secondary mozzle 70 of the secondary of φ 25 bores is inserted in the secondary mozzle 42 of one-level, close the first electrical ball valve 10 by industrial computer 25, open the second electrical ball valve 15, measure the flow velocity value of gas relay 18 to be measured by the second flowmeter 16 on the bypass duct 30;
Then open open to atmosphere the first solenoid valve 24 that links to each other with gas relay 18 to be measured, open the 3rd electrical ball valve 22 that 17 rear portions, moved end link to each other, industrial computer 25 is regulated oil pump 6 by frequency converter 5, make oil circuit and gas relay to be measured 18 internal cavities be full of test oil, close open to atmosphere the first solenoid valve 24 that links to each other with gas relay 18 to be measured.Industrial computer 25 is regulated oil pump 6 rotating speeds by frequency converter 5, make the oily Flow Velocity in the signal piping progressively increase to gas relay 18 baffle plate action connection point adhesives to be measured from 0, industrial computer receives contact adhesive heavy gas flow speed value and detects end signal, finishes the gas relay flow velocity value and detects.Industrial computer is recorded the action of gas relay baffle plate--during the adhesive of tripping operation contact, the first flow meter 8 that is connected with benchmark pipeline 29 or bypass duct 30 or the second flowmeter 16 are measured the flow velocity value, and this value is the heavy gas action flow speed value of gas relay 18 to be measured.
The light gas volumetric values detection method of above-mentioned one-pipe gas relay monitor station is:
With gas relay 18 clampings to be measured between fixed end 13 and moved end 17, select the one-level consistent with gas relay 18 bores to be measured, secondary or three grades of primary seal flow guiding discs, and secondary or three grades of secondary sealing flow guiding discs, open or close the same procedure of electrical ball valve in employing and the above-mentioned heavy gas flow speed detection method, control the first electrical ball valve 10 of opening oil pump 6 endpiece three-way pipelines 9 places, the second electrical ball valve 15, open to atmosphere the first solenoid valve 24 links to each other with gas relay 18 to be measured, close the 3rd electrical ball valve 22 that 17 rear portions, moved end link to each other, industrial computer 25 starts oil pump 6 by frequency converter 5, make oil circuit and gas relay to be measured 18 internal cavities be full of test oil, close first electrical ball valve 10 at oil pump 6 endpiece three-way pipelines 9 places, the second electrical ball valve 15 is closed oil pump 6.Open the second solenoid valve 20 that links to each other with volume pump 23 by industrial computer 25 controls, start volume pump 23, and the liquid displacement of real-time accumulated volume pump 23, when gas relay 18 inner chamber pastas to be measured drop to certain liquid level, gas relay 18 light gas contact adhesives to be measured, industrial computer 25 receives the light gas volumetric values of contact adhesive and detects end signal, finishes gas action volumetric values and detects.Industrial computer 25 is recorded the action of gas relay float--during the signal contact adhesive, and the accumulative total liquid displacement of volume pump 23, this value is the light gas action volumetric values of gas relay 18 to be measured.
The sealing property detecting method of above-mentioned one-pipe gas relay monitor station is:
With gas relay 18 clampings to be measured between fixed end 13 and moved end 17, select the one-level consistent with gas relay 18 bores to be measured, secondary or three grades of primary seal flow guiding discs, and one-level, secondary or three grades of secondary sealing flow guiding discs, industrial computer 25 in employing and the above-mentioned heavy gas flow speed detection method opens or closes the same method of electrical ball valve, make industrial computer 25 controls open first electrical ball valve 10 at oil pump 6 endpiece three-way pipelines 9 places, the second electrical ball valve 15, open to atmosphere the first solenoid valve 24 links to each other with gas relay 18 to be measured, close the 3rd electrical ball valve 22 that 17 rear portions, moved end link to each other, industrial computer 25 starts oil pump 6 by frequency converter 5, make oil circuit and gas relay to be measured 18 internal cavities be full of test oil, close open to atmosphere the first solenoid valve 24 that links to each other with gas relay 18 to be measured, industrial computer 25 is regulated oil pump 6 by frequency converter 5, pipeline pressure is progressively increased from 0, pressure transducer 21 Real-Time Monitorings and the demonstration line pressure of industrial computer 25 by linking to each other with pipeline, when pressure reaches predefined force value, guarantee that the oil pump 6 of frequency converter 5 adjustings is under constant rotating speed, close first the first electrical ball valve 10, then the second electrical ball valve 15 closes oil pump 6.System enters the pressurize countdown.Industrial computer 25 recorded real-time pressure value in the pipeline automatically after the pressurize countdown finished, this value is the sealing load value of gas relay 18 to be measured, whether qualified in order to the sealing property of judging gas relay 18 to be measured, being defective less than specified sealing load value, is qualified more than or equal to specified sealing load value.
Structure of the present utility model is not limited to the concrete structure of above-described embodiment, and apparent conversion or replacement all belong to protection domain of the present utility model to one skilled in the art.

Claims (10)

1. gas relay detects the centering clamp system of usefulness, it is characterized in that:
Comprise and be arranged on upper fixed end (13) and moved end (17) that are used for clamping gas relay to be measured (18) of stand (34);
Described fixed end (13) is provided with fixed end jack (64) for being fixed on a base on the stand (34) on fixed end (13);
Described moved end (17) is installed on the binding clasp on the stand (34), described binding clasp is used for making moved end (17) to do to advance or setback with respect to fixed end (13) vertically, described moved end (17) consists of the secondary sealing of one-level flow guiding disc, comprise the secondary mozzle (42) of the one-level that is installed on the binding clasp, secondary mozzle (42) front end of one-level is equipped with the secondary ring flange (41) of one-level, be provided with y-type seal ring (33) on the secondary ring flange of one-level (41), the seal groove that is used on the mounting flange with gas relay to be measured (18) is complementary.
2. gas relay according to claim 1 detects the centering clamp system of usefulness, it is characterized in that:
Described binding clasp is pneumatic type binding clasp or screw thread driven type binding clasp;
Described pneumatic type binding clasp comprises the cylinder (56) that is arranged on the stand (34), piston (57) in the cylinder (56) is separated into front chamber (58) and rear chamber (59) with cylinder (56), air intake opening (60) and gas outlet (61) are arranged in the front chamber (58), air intake opening (62) and gas outlet (63) are arranged in the rear chamber (59); The secondary mozzle of described one-level (42) runs through cylinder (56) and piston (57), and is connected on the piston (57);
Described screw thread driven type binding clasp comprises front bearing (32) and the rear support (35) that is arranged on the stand (34), be provided with mounting hole on front bearing (32) and the rear support (35), the swivel nut (43) of hollow is installed between front bearing (32) and the rear support (35), the front end of swivel nut (43) is installed in the mounting hole of front bearing (32) with bearing, the rear end of swivel nut (43) is installed in bearing in the mounting hole of rear support (35), is provided with internal thread in the endoporus of swivel nut (43); On the excircle of swivel nut (43) the reversible ratchet device is installed, described reversible ratchet device comprises the ratchet (40) on the excircle that is fixedly installed on swivel nut (43), the gear teeth of ratchet (40) are rectangle, be movably installed with discoid outer ring (44) on the excircle of ratchet (40), be provided with boss (45) on the outer ring (44), be provided with the commutation hole (46) of radially extending along ratchet (40) on the boss (45), the top in commutation hole (46) has spring cup (48), reversing bar (47) passes spring cup (48), insert in the commutation hole (46), the top of reversing bar (47) is a sphenocephaly, described sphenocephaly comprise one along ratchet (40) radially extend face (51) and one and the inclined-plane (52) of facing (51) directly and have angle directly, has spacing collar (49) on the reversing bar (47) of sphenocephaly top, be positioned on reversing bar (47) periphery between spring cup (48) and the spacing collar (49) and be set with spring (50), handle (54) also is installed on the boss (45); Has external thread on secondary mozzle (42) excircle of described one-level, the secondary mozzle of one-level (42) passes the mounting hole on the front bearing (32), be sleeved in the endoporus of swivel nut (43), the internal thread in the external thread on secondary mozzle (42) excircle of one-level and the endoporus of swivel nut (43) is intermeshing; Be provided with vertically chute (53) on secondary mozzle (42) excircle of one-level, chute (53) is sleeved on the guide rail that is convex (55) on the mounting hole of front bearing (32).
3. gas relay according to claim 2 detects the centering clamp system of usefulness, it is characterized in that:
Be fitted with one-level primary seal flow guiding disc in the described fixed end jack (64), one-level primary seal flow guiding disc comprises one-level master ring flange, one-level master's ring flange is made of the one-level master's flange body (36) in a tubular form that is connected and one-level master's flange face (37) of being plate-like, one-level master's flange body (36) is inserted in the fixed end jack (64), one-level master's flange face (37) uses bolted on fixed end (13), be provided with fixedly back taper (38) and y-type seal ring (39) on one-level master's flange face (37), be respectively applied to be complementary with the mounting hole of gas relay to be measured (18) and the seal groove on the mounting flange; One-level master's flange body (36) is coaxial setting with the secondary mozzle of one-level (42), and both internal diameters are identical.
4. gas relay according to claim 2 detects the centering clamp system of usefulness, it is characterized in that:
Be fitted with secondary primary seal flow guiding disc in the described fixed end jack (64), be fitted with the secondary sealing of secondary flow guiding disc in the secondary mozzle of described one-level (42);
Described secondary primary seal flow guiding disc comprises secondary master ring flange, secondary master ring flange is made of the secondary master flange body (65) in a tubular form that is connected and the secondary master flange face (66) that is plate-like, secondary master flange body (65) is inserted in the fixed end jack (64), secondary master flange body (65) front end is equipped with secondary major flow duct (67), the internal diameter of secondary master flange body (65) is identical with the internal diameter of secondary major flow duct (67), secondary master flange face (66) uses bolted on fixed end (13), be provided with fixedly back taper (69) and y-type seal ring (68) on the secondary master flange face (66), be respectively applied to be complementary with the mounting hole of gas relay to be measured (18) and the seal groove on the mounting flange;
The secondary sealing of described secondary flow guiding disc comprises the secondary mozzle (70) of the secondary that is inserted in the secondary mozzle of one-level (42), the front end of the secondary mozzle of secondary (70) is equipped with the secondary ring flange (71) of secondary, be provided with y-type seal ring (72) on the secondary ring flange of secondary (71), the seal groove that is used on the mounting flange with gas relay to be measured (18) is complementary;
Secondary major flow duct (67) is coaxial setting with the secondary mozzle of secondary (70), and both internal diameters are identical; The internal diameter of secondary major flow duct (67) is less than the internal diameter of one-level master flange body (36).
5. one-pipe gas relay monitor station comprises the stand (34) and the fuel tank (1) that are arranged on the casing, and is connected to the heavy gas flow speed test oil circuit between stand (34) and the fuel tank (1), it is characterized in that:
On the described casing the first solenoid valve (24) is installed also, the endpiece of the first solenoid valve (24) and atmosphere conducting, the entrance point of the first solenoid valve (24) is used for being connected with valve on the gas relay to be measured (18);
Described stand is provided with the centering clamp system on (34); Described centering clamp system comprises that being arranged on stand (34) goes up fixed end (13) and moved end (17) that are used for clamping gas relay to be measured (18); Described fixed end (13) is provided with fixed end jack (64) for being fixed on a base on the stand (34) on fixed end (13); Described moved end (17) is installed on the binding clasp on the stand (34), described binding clasp is used for making moved end (17) to do to advance or setback with respect to fixed end (13) vertically, described moved end (17) consists of the secondary sealing of one-level flow guiding disc, comprise the secondary mozzle (42) of the one-level that is installed on the binding clasp, secondary mozzle (42) front end of one-level is equipped with the secondary ring flange (41) of one-level, be provided with y-type seal ring (33) on the secondary ring flange of one-level (41), the seal groove that is used on the mounting flange with gas relay to be measured (18) is complementary;
Described heavy gas flow speed test oil circuit comprises and manual ball valve (4), oil pump (6), gas-removing filter (31) and the first reducer pipe (7) by detecting pipeline (12) and be connected in series successively of the oil-out (27) of fuel tank (1), benchmark pipeline (29), first flow meter (8), the first port of three-way pipeline (9), the second port, the first electrical ball valve (10), the second reducer pipe (11) and the constant-current stabilizer (14) of three-way pipeline (9) that the end of detection pipeline (12) is installed on the fixed end (13) with flange; Detect the bore of pipeline (12) greater than the bore of benchmark pipeline (29);
Described heavy gas flow speed test oil circuit also comprises the second electrical ball valve (15), the second flowmeter (16) that is connected in series successively by bypass duct (30) with the third connectivity mouth of three-way pipeline (9), and the end of bypass duct (30) is connected on the detection pipeline (12) in the outside, fixed end (13); The bore of bypass duct (30) is less than the bore of benchmark pipeline (29);
Described heavy gas flow speed test oil circuit also comprises the detection pipeline (12) between the oil return opening (19) on the secondary mozzle (42) of the one-level that is connected on the moved end (17) and the fuel tank (1), and the detection pipeline (12) outside moved end (17) is provided with the 3rd electrical ball valve (22).
6. one-pipe gas relay monitor station according to claim 5 is characterized in that:
Described binding clasp is pneumatic type binding clasp or screw thread driven type binding clasp;
Described pneumatic type binding clasp comprises the cylinder (56) that is arranged on the stand (34), piston (57) in the cylinder (56) is separated into front chamber (58) and rear chamber (59) with cylinder (56), air intake opening (60) and gas outlet (61) are arranged in the front chamber (58), air intake opening (62) and gas outlet (63) are arranged in the rear chamber (59); The secondary mozzle of described one-level (42) runs through cylinder (56) and piston (57), and is connected on the piston (57);
Described screw thread driven type binding clasp comprises front bearing (32) and the rear support (35) that is arranged on the stand (34), be provided with mounting hole on front bearing (32) and the rear support (35), the swivel nut (43) of hollow is installed between front bearing (32) and the rear support (35), the front end of swivel nut (43) is installed in the mounting hole of front bearing (32) with bearing, the rear end of swivel nut (43) is installed in bearing in the mounting hole of rear support (35), is provided with internal thread in the endoporus of swivel nut (43); On the excircle of swivel nut (43) the reversible ratchet device is installed, described reversible ratchet device comprises the ratchet (40) on the excircle that is fixedly installed on swivel nut (43), the gear teeth of ratchet (40) are rectangle, be movably installed with discoid outer ring (44) on the excircle of ratchet (40), be provided with boss (45) on the outer ring (44), be provided with the commutation hole (46) of radially extending along ratchet (40) on the boss (45), the top in commutation hole (46) has spring cup (48), reversing bar (47) passes spring cup (48), insert in the commutation hole (46), the top of reversing bar (47) is a sphenocephaly, described sphenocephaly comprise one along ratchet (40) radially extend face (51) and one and the inclined-plane (52) of facing (51) directly and have angle directly, has spacing collar (49) on the reversing bar (47) of sphenocephaly top, be positioned on reversing bar (47) periphery between spring cup (48) and the spacing collar (49) and be set with spring (50), handle (54) also is installed on the boss (45); Has external thread on secondary mozzle (42) excircle of described one-level, the secondary mozzle of one-level (42) passes the mounting hole on the front bearing (32), be sleeved in the endoporus of swivel nut (43), the internal thread in the external thread on secondary mozzle (42) excircle of one-level and the endoporus of swivel nut (43) is intermeshing; Be provided with vertically chute (53) on secondary mozzle (42) excircle of one-level, chute (53) is sleeved on the guide rail that is convex (55) on the mounting hole of front bearing (32).
7. one-pipe gas relay monitor station according to claim 6 is characterized in that:
Be fitted with one-level primary seal flow guiding disc in the described fixed end jack (64), one-level primary seal flow guiding disc comprises one-level master ring flange, one-level master's ring flange is made of the one-level master's flange body (36) in a tubular form that is connected and one-level master's flange face (37) of being plate-like, one-level master's flange body (36) is inserted in the fixed end jack (64), one-level master's flange face (37) uses bolted on fixed end (13), be provided with fixedly back taper (38) and y-type seal ring (39) on one-level master's flange face (37), be respectively applied to be complementary with the mounting hole of gas relay to be measured (18) and the seal groove on the mounting flange; One-level master's flange body (36) is coaxial setting with the secondary mozzle of one-level (42), and both internal diameters are identical, and identical with the internal diameter that detects pipeline (12).
8. one-pipe gas relay monitor station according to claim 6 is characterized in that:
Be fitted with secondary primary seal flow guiding disc in the described fixed end jack (64), be fitted with the secondary sealing of secondary flow guiding disc in the secondary mozzle of described one-level (42);
Described secondary primary seal flow guiding disc comprises secondary master ring flange, secondary master ring flange is made of the secondary master flange body (65) in a tubular form that is connected and the secondary master flange face (66) that is plate-like, secondary master flange body (65) is inserted in the fixed end jack (64), secondary master flange body (65) front end is equipped with secondary major flow duct (67), secondary major flow duct (67) is inserted in the detection pipeline (12) in the outside, fixed end (13), the internal diameter of secondary master flange body (65) is identical with the internal diameter of secondary major flow duct (67), secondary master flange face (66) uses bolted on fixed end (13), be provided with fixedly back taper (69) and y-type seal ring (68) on the secondary master flange face (66), be respectively applied to be complementary with the mounting hole of gas relay to be measured (18) and the seal groove on the mounting flange;
The secondary sealing of described secondary flow guiding disc comprises the secondary mozzle (70) of the secondary that is inserted in the secondary mozzle of one-level (42), the front end of the secondary mozzle of secondary (70) is equipped with the secondary ring flange (71) of secondary, be provided with y-type seal ring (72) on the secondary ring flange of secondary (71), the seal groove that is used on the mounting flange with gas relay to be measured (18) is complementary;
Secondary major flow duct (67) is coaxial setting with the secondary mozzle of secondary (70), and both internal diameters are identical; The internal diameter of secondary major flow duct (67) is less than the internal diameter of one-level master flange body (36).
9. it is characterized in that according to claim 7 or 8 described one-pipe gas relay monitor stations:
The light gas volume that also is equipped with on the described casing is tested pipeline and sealing property test pipeline;
Light gas volume test pipeline comprises the first solenoid valve (24), one-level primary seal flow guiding disc, detects pipeline (12), and be serially connected in oil return opening (19) on the second solenoid valve (20) on the detection pipeline (12) in fixed end (13) outside, volume pump (23), the fuel tank (1) and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve (22);
Sealing property test pipeline comprises the first solenoid valve (24), one-level primary seal flow guiding disc, be connected to pressure transducer (21) and accumulator on the detection pipeline (12) in the outside, fixed end (13), and the detection pipeline (12) between oil-out (27) and fixed end (13), and one-level secondary sealing flow guiding disc and the 3rd electrical ball valve (22) formation.
10. one-pipe gas relay monitor station according to claim 9 is characterized in that:
Be provided with oil temperature heating controller (2) and liquid level gauge (3) on the described fuel tank (1);
Described oil pump (6) is electrically connected with frequency converter (5);
Also be provided with industrial computer (25), touch LCD screen (26) and signals collecting terminal (28) on the casing, industrial computer (25) is connected with power supply, and industrial computer (25) is electrically connected with touch LCD screen (26), oil temperature heating controller (2), frequency converter (5), first flow meter (8), the first electrical ball valve (10), the second electrical ball valve (15), the second flowmeter (16), the second solenoid valve (20), volume pump (23), the first solenoid valve (24), pressure transducer (21) and signals collecting terminal (28).
CN 201220531798 2012-10-17 2012-10-17 Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection Withdrawn - After Issue CN202836631U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220531798 CN202836631U (en) 2012-10-17 2012-10-17 Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220531798 CN202836631U (en) 2012-10-17 2012-10-17 Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection

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CN202836631U true CN202836631U (en) 2013-03-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889906A (en) * 2012-10-17 2013-01-23 冉正华 Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof
CN103335786A (en) * 2013-06-18 2013-10-02 天津卡达克汽车高新技术公司 Novel pressure maintaining detection equipment
CN114674371A (en) * 2022-03-28 2022-06-28 淮北工科检测检验有限公司 Gas relay detection device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102889906A (en) * 2012-10-17 2013-01-23 冉正华 Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof
CN102889906B (en) * 2012-10-17 2014-07-02 冉正华 Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof
CN103335786A (en) * 2013-06-18 2013-10-02 天津卡达克汽车高新技术公司 Novel pressure maintaining detection equipment
CN103335786B (en) * 2013-06-18 2015-06-17 天津卡达克汽车高新技术公司 Novel pressure maintaining detection equipment
CN114674371A (en) * 2022-03-28 2022-06-28 淮北工科检测检验有限公司 Gas relay detection device

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