CN203259337U - High-temperature valve detection test system - Google Patents
High-temperature valve detection test system Download PDFInfo
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- CN203259337U CN203259337U CN 201320271950 CN201320271950U CN203259337U CN 203259337 U CN203259337 U CN 203259337U CN 201320271950 CN201320271950 CN 201320271950 CN 201320271950 U CN201320271950 U CN 201320271950U CN 203259337 U CN203259337 U CN 203259337U
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Abstract
The utility model discloses a high-temperature valve detection test system. The high-temperature valve detection test system comprises an oil feed pump, an oil storage tank, a pressure pump, a buffer tank, a detection device and a condensing unit; an electric heater and a pressure transmitter are arranged on the top of the oil storage tank; the bottom of the oil storage tank is connected with the buffer tank via a third main pipeline; the pressure transmitter and a temperature sensor are arranged on the inner side wall of the buffer tank; the buffer tank is connected with an oil inlet a to-be-tested valve via a fourth main pipeline; the detection device comprises a detection platform and a torque detection device; a valve rod of the to-be-tested valve is connected with the torque detection device; and an oil outlet of the to-be-tested valve is connected with the torque detection device through a fifth main pipeline, the condensing device and a second main pipeline successively. The high-temperature valve detection test system is simple in structure and easy to use, is capable of performing a resistance coefficient test and a torque performance test, a flow characteristic test and leak quantity detection for a high-temperature valve.
Description
Technical field
The utility model relates to a kind of high temperature valve and detects pilot system.
Background technology
Valve is the control device of fluid circuit, and its basic function is the circulation that switches on or off the pipeline medium, changes the flow direction of medium, regulates pressure and the flow of medium, the normal operation of the equipment of protection pipeline.
The extensive application of industrial valve is after watt utility model steam engine, nearly twenty or thirty is over year, because the needs of the aspects such as oil, chemical industry, power station, metallurgy, boats and ships, nuclear energy, universe, valve is had higher requirement, impel people to study and produce the valve of high parameter, its working temperature is from ultralow temperature-269 ℃ to 1200 ℃ of high temperature, even up to 3430 ℃.
The valve manufacturing enterprise of most domestic only relates to the inspections such as material, outward appearance, size, structure, pressure, leakage usually when particularly high temperature valve carries out factory inspection to valve at present, it is not tested in the negotiability under the high-temperature medium.
High temperature valve is widely used in the oil refining industry, and circulation medium is flue gas or cracking wet goods.Before domestic high temperature valve enterprise externally provides product at present, owing to lack the checkout equipment aspect the high-temperature medium negotiability, corresponding supplemental characteristic can't be provided, as valve under high-temperature medium switch performance whether good, whether reveal whether serious, negotiability normal etc., thereby directly have influence on the core competitiveness of domestic high temperature valve product.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in structure for the technical matters that exists in the above-mentioned prior art, can carry out resistance coefficient test, torsional performance test to high temperature valve, the high temperature valve that discharge characteristic test and amount of leakage detect detects pilot system.
The technical scheme that the utility model adopts is: a kind of high temperature valve detects pilot system, it is characterized in that comprising oil-feed pump, storage tank, forcing pump, surge tank, pick-up unit, condensing unit; At the top of storage tank electric heater, pressure unit are installed, at the madial wall of storage tank temperature sensor are installed; The bottom of storage tank is connected with surge tank by the 3rd main conduit, be provided with forcing pump and non-return valve on the 3rd main conduit, top at surge tank is equipped with electric heater, madial wall at surge tank is equipped with pressure unit and temperature sensor, and surge tank is connected with the oiler of valve to be measured by the 4th trunk pipeline;
Described pick-up unit comprises monitor station, torsion-testing apparatus, be provided with valve to be measured at monitor station, the valve rod of described valve to be measured is connected with torsion-testing apparatus, and the 4th main conduit at the oiler place of valve to be measured is provided with stop valve, flowmeter, pressure unit;
The oil-out of valve to be measured links to each other with storage tank by the 5th main conduit, condensing unit, the second main conduit successively, and pressure unit, stop valve are set on the 5th main conduit.
By technique scheme, described torsion-testing apparatus comprises support, be provided with electric actuator, torque sensor at support, the output shaft of electric actuator is connected with torque sensor by shaft coupling, and the output shaft of torque sensor is connected with the valve rod of valve to be measured by shaft coupling.
By technique scheme, described electric actuator is provided with the angle Stroke Displacement Transducer.
By technique scheme, described condensing unit comprises tank, coiled pipe, and the water inlet of tank upper end links to each other with water inlet pipe, and water inlet pipe is provided with intake pump, and the water delivering orifice of bottom of gullet links to each other with rising pipe, sets out water pump on the rising pipe; Coiled pipe is positioned at tank, and the bottom of coiled pipe links to each other with the 5th main conduit by flange, and the upper end of coiled pipe is connected with the second main conduit (22) by flange.
By technique scheme, condensing unit also is communicated with surge tank by the tributary pipeline, is provided with stop valve, pressure maintaining valve, bend pipe expansion joint at the tributary pipeline.
By technique scheme, also be provided with the Leak Detection pipeline on described the 5th main conduit, the Leak Detection pipeline is provided with stop valve.
By technique scheme, top at storage tank also is equipped with safety valve and vent valve, the top of storage tank is provided with the first oil supply hole, the side of storage tank is provided with the second oil supply hole, the oil-out of oil-feed pump is provided with non-return valve by the first oil supply hole of the first main conduit connection storage tank at the first main conduit; The bottom of storage tank is connected with the oil-drain pipe that stop valve is installed; The second main conduit is communicated with the second oil supply hole of storage tank, on the second main conduit non-return valve is installed.
By technique scheme, at the top of surge tank electric heater and safety valve are installed.
By technique scheme, described monitor station is the cement pedestal of rectangular parallelepiped.
The obtained beneficial effect of the utility model is:
1, the utility model is simple in structure, can carry out to the high temperature valve of different size resistance coefficient test, torsional performance test, and discharge characteristic test and amount of leakage detect, and test specification is wide, degree of accuracy is high;
2, the utility model is with low cost, easy to operate, and is practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of torsion-testing apparatus among Fig. 1.
Fig. 3 is control principle synoptic diagram of the present utility model.
Among the figure: 1, oil-feed pump; 2, non-return valve; 3, temperature sensor; 4, vent valve; 5, electric heater; 6, safety valve; 7, storage tank; 8, pressure maintaining valve; 9, forcing pump; 10, bend pipe expansion joint; 11, pressure unit; 12, surge tank; 13, stop valve; 14 electric actuator; 15, torsion-testing apparatus; 16, valve to be measured; 17, monitor station; 18, flowmeter; 19, go out water pump; 20, condensing unit; 21, intake pump; 22, the second main conduit.23, tributary pipeline; 24, shaft coupling; 25, bearing seat; 26, torque sensor; 27, valve rod; 28, support; 29, storage tank temperature digital-display instrument; 30, storage tank pressure digital display instrument; 31, surge tank temperature digital-display instrument; 32, buffer tank pressure digital display instrument; 33, oil storage tank heater switch; 34, buffer tank heater button; 35, forcing pump switch; 36, pressure maintaining valve switch; 37, oil-feed pump switch; 38, intake pump switch; 39, go out pump switch; 40, signal transmitting device; 41, processor; 42, data acquisition unit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 shows the structural representation of the embodiment that the utility model provides, as shown in Figure 1, the high temperature valve that provides of present embodiment detects pilot system and comprises oil-feed pump 1, storage tank 7, forcing pump 9, surge tank 12, pick-up unit, condensing unit, data acquisition system (DAS), control system.Electric heater 5, pressure unit 11, safety valve 6 and vent valve 4 are installed at the top of storage tank 7, at the madial wall of storage tank 7 temperature sensor 3 are installed, the bottom is connected with the oil-drain pipe that stop valve 13 is installed.The top of storage tank is provided with the first oil supply hole, and the side of storage tank is provided with the second oil supply hole, and the oil-out of oil-feed pump 1 is provided with non-return valve 2 by the first oil supply hole of the first main conduit connection storage tank 7 at the first main conduit.The bottom of storage tank 7 is connected with surge tank 12 by the 3rd main conduit, be provided with forcing pump 9 and non-return valve 2 on the 3rd main conduit, the effect of forcing pump 9 is to provide power for whole medium circulation system, the effect of non-return valve is the medium back flow that prevents in the surge tank 12, wherein, the volume of surge tank 12 is less than the volume of storage tank 7, electric heater 5 and safety valve 6 are installed at the top of surge tank 12, madial wall at surge tank 12 is equipped with pressure unit 11 and temperature sensor 3, is provided with the oil-drain pipe that stop valve 13 is installed in the bottom of surge tank 12.Surge tank 12 is connected with the oiler of valve 16 to be measured by the 4th trunk pipeline.
Described pick-up unit comprises monitor station 17, torsion-testing apparatus 15, described monitor station 17 is the cement pedestal of rectangular parallelepiped, be provided with valve 16 to be measured at monitor station 17, the valve rod of described valve to be measured 16 is connected with torsion-testing apparatus, the 4th main conduit at the oiler place of valve 16 to be measured is provided with stop valve 13, flowmeter 18, pressure unit 11, the oil-out of valve to be measured links to each other with the 5th main conduit, pressure unit 11 is set on the 5th main conduit, stop valve 13, described flowmeter 18 reach 700 ℃ target type meter (act on the measuring channel center and measure the flowmeter of fluid strength perpendicular to the power on the disk (target) of flow direction with test fluid) for heatproof.
The structural representation of torsion-testing apparatus 15 as shown in Figure 2, on the vertical monitor station 17 of placing of torsion-testing apparatus, described torsion-testing apparatus comprises support 28, be provided with electric actuator 14, bearing seat 25, torque sensor 26 at support 28, the output shaft of electric actuator 14 is connected with torque sensor 26 by shaft coupling 24, and the output shaft of torque sensor 26 is connected with the valve rod 27 of valve to be measured by shaft coupling 24.Electric actuator is provided with the angle Stroke Displacement Transducer.
Described condensing unit bag 20 is drawn together tank, coiled pipe, and the water inlet of tank upper end links to each other with water inlet pipe, and water inlet pipe is provided with intake pump 21, and the water delivering orifice of bottom of gullet links to each other with rising pipe, sets out water pump 19 on the rising pipe.Coiled pipe is positioned at tank, coiled pipe is from upwards coiling of bottom of gullet, the bottom of coiled pipe links to each other with the 5th main conduit by flange, the upper end of coiled pipe is connected with the second main conduit 22 by flange, wherein the flow of intake pump 21 will be a bit larger tham the flow of water pump 19, and its purpose is to compensate that high-temperature medium flows through that coiled pipe and water carry out heat interchange and the evaporation capacity that produces.
The second main conduit 22 is communicated with the second oil supply hole of storage tank 7, on the second main conduit 22 non-return valve 2 is installed, and consists of closed circuit.
Wherein, the 5th main conduit also is communicated with surge tank 12 by tributary pipeline 23, is provided with stop valve 13, pressure maintaining valve 8, bend pipe expansion joint 10 at tributary pipeline 23.The purpose of installing pressure maintaining valve 8 is to guarantee that the high-temperature medium in the surge tank flows out along the 4th main conduit, the 5th main conduit, the second main conduit 22 with constant pressure, bend pipe expansion joint 10 can prevent pipeline damage as the extra-stress that a kind of flexible structure causes for compensation pipeline internal cause temperature difference.Also be provided with the Leak Detection pipeline on described the 5th main conduit, the Leak Detection pipeline is provided with stop valve 13.
Described control system is used for the switch of each electrical equipment of control, described set-up of control system is provided with storage tank temperature digital-display instrument 29, storage tank pressure digital display instrument 30, surge tank temperature digital-display instrument 31, buffer tank pressure digital display instrument 32, oil storage tank heater switch 33, buffer tank heater button 34, forcing pump switch 35, pressure maintaining valve switch 36, oil-feed pump switch 37, intake pump switch 38, goes out pump switch 39, signal transmitting device 40 at switch board on switch board.Data acquisition system (DAS) comprises data acquisition unit and processor 41, and signal transmitting device 40 is sent to data acquisition unit 42 with each road signal, and processor 41 is used for being in each road signal that data acquisition unit 42 sends.In the present embodiment, processor 41 adopts computer realization.
In the present embodiment, select lubricating oil as the fluid media (medium) of the circulation system, contain flame-retardant additive in its composition, maximum temperature can reach 650 ℃, is delivered in the storage tank 7 by oil-feed pump 1, and volume is about 2/3rds of tank body.Press electrical heating switch 33 at switch board, the electric heater in the storage tank is started working, and then observes the registration of storage tank temperature digital-display instrument 29 before switch board.When the oil temperature in the storage tank rises to 350 ℃, starting pressure switch pump 35 on switch board immediately.According to the flow of forcing pump and the volume of surge tank, control the opening time well, closing presure pump when surge tank is filled just.Then open buffer tank heater button 34, the oil in the surge tank continues to be heated.After oil temperature reached 650 ℃, the starting pressure pump 9 again.
After finishing the preheating of lubricating oil, under the effect of forcing pump 9,650 ℃ high temperature oil is passed through valve to be measured 16 and the condensing unit 20 on the monitor station successively from the buffering tank top along the 3rd main conduit, the 4th main conduit, again get back at last storage tank 7 and finish whole circulation.Wherein, when the pressure in the surge tank 12 during greater than 3Mpa, lubricating oil in the surge tank flows in the storage tank 7 through pressure maintaining valve 8 and condensing unit 20 from tributary pipeline 23, makes the pressure on the 3rd main conduit, the 4th main conduit, the second main conduit 22 remain at 3Mpa.
Because the high-temperature pump maximum temperature that domestic market is applicable to water, wet goods medium can only reach 450 ℃, so high temperature oil is cooled to below 450 ℃ the safe handling of guarantee whole system flowing through monitor station by condensing unit 20.
In the present embodiment, the content measurement of valve to be measured comprises resistance coefficient test, torsional performance test, discharge characteristic test and leakage test.
The resistance coefficient of valve
Depend on size, structure and the cavity shape of valve, its computing formula is:
, in the formula,
Be pressure differential before and after the valve; A is the valve plate area; Q is pipeline flow; G is acceleration of gravity.In the process of the test pressure in the hold-up vessel is remained on 3MPa, the amount that test need to record is flow in valve relative opening degree, upstream pressure, downstream pressure, the pipe.By the relative opening degree of electric actuator 14 slow control valves, scope is from 0～100%, by the above-mentioned data to be measured of the Real-time Collection of data acquisition unit 42, thereby obtains resistance coefficient figure under the valve different opening to be measured after calculating and analyzing.
In the torsional performance test process of valve, the amount that need to record is the angle of valve opening, and the moment of torsion of corresponding aperture lower valve rod.On data acquisition unit, the angle variation range of valve electric actuator to be measured is limited to 0～90 °, the angle of the unlatching in the valve opening and closing process is measured by the angle Stroke Displacement Transducer on the electric actuator, control on computers the angle of rotating in the valve opening and closing process to be measured, thereby obtain the torque value under each angle, draw the aperture-torque diagram of valve to be measured through the arrangement of KingView software analysis.
The discharge characteristic of valve is the relation of finer opening and flow.In the present embodiment, high temperature oil through 12 heating of hold-up vessel 7 and surge tank and forcing pump 9 and pressure maintaining valve 8 effects after with constant 3Mpa pressure current through valve to be measured, in the process of the test, the amount that need to record is the relative opening degree of valve and the reading of high temperature flowmeter.Relative opening degree in the valve opening and closing process is measured by the angle Stroke Displacement Transducer on the electric actuator, and the data on flows that records with flowmeter self-sensor device reaches computing machine behind data acquisition unit 42, draw the rating curve of valve to be measured behind the finishing analysis.
The leakage rate of valve to be measured adopts quantitatively and detects in the present embodiment, be that high temperature grease is closed valve plate to be measured fully in cyclic process, open cement pedestal one side and be positioned at stop valve switch on the Leak Detection pipeline, whether there is medium to flow out in the sighting tube, if any, then after cooling it is weighed and can obtain the leakage rate of valve to be measured.
Claims (9)
1. a high temperature valve detects pilot system, it is characterized in that comprising oil-feed pump (1), storage tank (7), forcing pump (9), surge tank (12), pick-up unit, condensing unit (20); Electric heater (5), pressure unit (11) are installed at the top of storage tank (7), at the madial wall of storage tank (7) temperature sensor (3) are installed; The bottom of storage tank (7) is connected with surge tank (12) by the 3rd main conduit, be provided with forcing pump (9) and non-return valve (2) on the 3rd main conduit, top at surge tank (12) is equipped with electric heater, madial wall at surge tank (12) is equipped with pressure unit (11) and temperature sensor (3), and surge tank (12) is connected with the oiler of valve to be measured (16) by the 4th trunk pipeline;
Described pick-up unit comprises monitor station (17), torsion-testing apparatus (15), be provided with valve to be measured (16) at monitor station (17), the valve rod of described valve to be measured (16) is connected with torsion-testing apparatus, and the 4th main conduit at the oiler place of valve to be measured (16) is provided with stop valve (13), flowmeter (18), pressure unit (11);
The oil-out of valve to be measured links to each other with storage tank (7) by the 5th main conduit, condensing unit, the second main conduit (22) successively, and pressure unit (11), stop valve (13) are set on the 5th main conduit.
2. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that, described torsion-testing apparatus comprises support (28), be provided with electric actuator (14), torque sensor (26) at support (28), the output shaft of electric actuator (14) is connected with torque sensor (26) by shaft coupling (24), and the output shaft of torque sensor (26) is connected with the valve rod (27) of valve to be measured by shaft coupling (24).
3. a kind of high temperature valve according to claim 2 detects pilot system, it is characterized in that described electric actuator is provided with the angle Stroke Displacement Transducer.
4. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that, described condensing unit (20) comprises tank, coiled pipe, the water inlet of tank upper end links to each other with water inlet pipe, water inlet pipe is provided with intake pump (21), the water delivering orifice of bottom of gullet links to each other with rising pipe, sets out water pump (19) on the rising pipe; Coiled pipe is positioned at tank, and the bottom of coiled pipe links to each other with the 5th main conduit by flange, and the upper end of coiled pipe is connected with the second main conduit (22) by flange.
5. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that, condensing unit (20) also is communicated with surge tank (12) by tributary pipeline (23), is provided with stop valve (13), pressure maintaining valve (8), bend pipe expansion joint (10) at tributary pipeline (23).
6. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that also be provided with the Leak Detection pipeline on described the 5th main conduit, the Leak Detection pipeline is provided with stop valve (13).
7. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that, safety valve (6) and vent valve (4) also are installed at the top of storage tank (7), the top of storage tank is provided with the first oil supply hole, the side of storage tank is provided with the second oil supply hole, the oil-out of oil-feed pump (1) is provided with non-return valve (2) by the first oil supply hole of the first main conduit connection storage tank (7) at the first main conduit; The bottom of storage tank (7) is connected with the oil-drain pipe that stop valve (13) is installed; The second main conduit (22) is communicated with the second oil supply hole of storage tank (7), and non-return valve (2) is installed on the second main conduit (22).
8. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that, electric heater (5) and safety valve (6) are installed at the top of surge tank (12).
9. a kind of high temperature valve according to claim 1 detects pilot system, it is characterized in that described monitor station (17) is the cement pedestal of rectangular parallelepiped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271950 CN203259337U (en) | 2013-05-17 | 2013-05-17 | High-temperature valve detection test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320271950 CN203259337U (en) | 2013-05-17 | 2013-05-17 | High-temperature valve detection test system |
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| CN203259337U true CN203259337U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320271950 Withdrawn - After Issue CN203259337U (en) | 2013-05-17 | 2013-05-17 | High-temperature valve detection test system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308293A (en) * | 2013-05-17 | 2013-09-18 | 武汉工程大学 | High temperature valve detecting and testing system |
| CN104880310A (en) * | 2015-06-08 | 2015-09-02 | 宁波埃美柯铜阀门有限公司 | Valve flow measuring system |
| CN105424264A (en) * | 2015-12-28 | 2016-03-23 | 北航温州研究院 | Valve flow and flow resistance coefficient detection device |
| CN106353018A (en) * | 2016-08-31 | 2017-01-25 | 华东理工大学 | Device for continuously testing dynamic torque of electronic valve under complicated working conditions |
-
2013
- 2013-05-17 CN CN 201320271950 patent/CN203259337U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308293A (en) * | 2013-05-17 | 2013-09-18 | 武汉工程大学 | High temperature valve detecting and testing system |
| CN103308293B (en) * | 2013-05-17 | 2016-04-13 | 武汉工程大学 | A kind of high temperature valve detection experiment system |
| CN104880310A (en) * | 2015-06-08 | 2015-09-02 | 宁波埃美柯铜阀门有限公司 | Valve flow measuring system |
| CN104880310B (en) * | 2015-06-08 | 2017-05-31 | 宁波埃美柯铜阀门有限公司 | Valve flow measuring system |
| CN105424264A (en) * | 2015-12-28 | 2016-03-23 | 北航温州研究院 | Valve flow and flow resistance coefficient detection device |
| CN106353018A (en) * | 2016-08-31 | 2017-01-25 | 华东理工大学 | Device for continuously testing dynamic torque of electronic valve under complicated working conditions |
| CN106353018B (en) * | 2016-08-31 | 2019-09-10 | 华东理工大学 | Electrically operated valve dynamic torque continuous test device under a kind of complex working condition |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20160413 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |