CN202370938U - Test bed for hydraulic element - Google Patents
Test bed for hydraulic element Download PDFInfo
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- CN202370938U CN202370938U CN 201120447444 CN201120447444U CN202370938U CN 202370938 U CN202370938 U CN 202370938U CN 201120447444 CN201120447444 CN 201120447444 CN 201120447444 U CN201120447444 U CN 201120447444U CN 202370938 U CN202370938 U CN 202370938U
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Abstract
A test bed for a hydraulic element obtains the maximum pressure of a system by means of a gas drive liquid pump, and the maximum pressure is adjusted and decompressed to output multi-path test pressure with different grades, including high test pressure, intermediate test pressure and low test pressure; and the conditions of simulating the operating mode of a wellhead control panel, realizing the capability on impact resistance test and enabling an energy accumulator to supply pressure to an intermediate pressure loop are determined by whether a large pilot valve obtains the pilot pressure outputted by a pilot control valve or not, so that a high pressure valve can be operated with lower pressure, so as to realize safe operation and quick switching function. Therefore, the test bed for the hydraulic element not only has the ordinary hydraulic test function, but also serves as special test equipment for testing the wellhead control panel and related components, and besides, the extended capability of the test bed on continuously increasing new pressure loops is retained.
Description
Technical field
The utility model relates to a kind of hydraulic element test platform, particularly a kind of hydraulic element test platform that is used for the test of well head safe control system.
Background technique
At present, to the check of components and parts in process of production of well head control panel, depend on the ware-house-in inspection in early stage and install the check in the later uniting and adjustment.Just testing before being difficult in assembling, is because of the check to wherein most valve member, need each hydraulic fluid port be connected, and require Inspection equipment to possess certain function, and the conventional function of suppressing can not only be arranged.The check of the important components and parts of minority even the operating mode that need simulate the well head control panel fully just can obtain real data, and conventional hydraulic test bench can't satisfy this requirement.
Existing hydraulic test bench mostly adopts easy operating valve on controling, wait like ball valve or needle-valve and realize switch.This application is feasible with respect to the pressure test of routine, but and is not suitable for the test of well head control panel.For example, can only use needle-valve to come the switch of direct control high pressure valve at present, but have a process during operation needle-valve, this process has determined it that big-flow high-pressure medium of moment can not be provided.And adopting conventional high-pressure ball valve to control, not only operation effort also can cause safety coefficient to reduce.In the practical application, though can also realize through high-pressure solenoid valve, with high costs, and after having increased electronic control module, can cause equipment complicacy and volume increase more, be unfavorable for portability of equipment.Therefore, above-mentioned these all are not suitable for the pressure testing equipment as the well head control panel.
The model utility content
The purpose of the utility model provides a kind of hydraulic element test platform; The test pressure of senior middle school's low pressure of multichannel different brackets can be provided; And the relevant function of reference well head control panel, utilize lower pressure to come the operate high pressure valve member, to realize safety operation and snap switch function.Therefore, the utility model is except having the function of conventional hydraulic test, the special test equipment that can also detect as well head control panel and relevant components and parts thereof, and remain with the expansion capability that continues to increase new pressure circuit.
In order to achieve the above object, the technological scheme of the utility model provides a kind of hydraulic element test platform, and it is provided with:
The gas drive liquid pump, it utilizes compressed air-driven, exports after input hydraulic oil is wherein pressurizeed, and obtains system's maximum pressure of this test stand;
Said test stand establishes a plurality of loops that test pressure is provided respectively, comprises:
Several high tension loops are provided with separately: stop valve, and it is communicated to said system maximum pressure, comes the loop voltage supply for the place; One-way valve prevents to belong to the mutual interference mutually in loop and other loops; Described several high tension loops, the high-pressure of the identical or different grade of corresponding output;
Hydraulic circuit at least one is provided with stop valve, and it is communicated to said system maximum pressure, comes the loop voltage supply for the place; Stop valve interlocking in middle hydraulic circuit and the high tension loop is provided with; Middle hydraulic circuit also is provided with: reduction valve is pressure pressure in needed with the maximum pressure decompression of said system; Accumulator, it is connected to hydraulic circuit in this through an isolation ball valve, lays in and provide middle impact test pressure of pressing; Big pilot valve, it is communicated with said accumulator when receiving pilot pressure, and the impact test pressure of this accumulator deposit is outwards exported; Delivery pressure or carry out pressure release not when not having pilot pressure on the big pilot valve;
Guide's control loop, itself and said middle hydraulic circuit are equipped with and for it pilot pressure are provided; Said guide's control loop is provided with reduction valve in addition, and middle pressure pressure is further reduced pressure obtains needed low pressure; Another accumulator, it is connected to this guide's control loop through isolation ball valve, lays in and provide low pressure; Pilot-actuated valve, when it is opened with this loop in accumulator be communicated with, and with the low pressure of this accumulator deposit, export to said in the big pilot valve of hydraulic circuit as its pilot pressure; When closing, do not export pilot-actuated valve pilot pressure;
Several low tension loops, by itself and shared reduction valve and the accumulator voltage supply of said guide's control loop, and corresponding outwards output several low pressure.
The delivery pressure of said gas drive liquid pump is the fixedly multiple for the bleed pressure of its voltage supply;
Be provided with oil and water seperator in the said test stand said bleed pressure is handled, be provided with isolation ball valve this oil and water seperator voltage supply;
Also be provided with another reduction valve in the said test stand, the bleed pressure after it passes through an isolation ball valve and said oil and water seperator is handled is communicated with; This reduction valve is regulated the delivery pressure of said gas drive liquid pump through regulating bleed pressure.
Said test stand also comprises pneumatic circuit, and the bleed pressure that is provided with in this pneumatic circuit after another reduction valve is handled said oil and water seperator is regulated, and obtains the source of the gas test pressure; Be provided with isolation ball valve in the pneumatic circuit, be several delivery outlet voltage supply in this loop, outwards export said source of the gas test pressure via those delivery outlets; Also be provided with one-way valve in the pneumatic circuit.
Said test stand also is provided with the device that the hydraulic oil that will input to the gas drive liquid pump is carried out primary filter, comprises the air-strainer, oil strainer, the liquid level liquid thermometer that are equipped with, and with the isolation ball valve of the corresponding connection of some delivery outlets of this device; Be delivered to said gas drive liquid pump through the hydraulic oil of one of them isolation ball valve after with primary filter;
Said test stand also comprises the oil strainer that is applicable to high-pressure filteration, after its high-pressure that obtains after to the supercharging of said gas drive liquid pump further filters, offers said high tension loop.
Said test stand also comprises the hand supercharging loop, and it is provided with the hydraulic oil of hand pump after to primary filter and carries out hand supercharging, also is provided with stop valve and outwards carries the test pressure that obtains through manual supercharging;
Said hand supercharging also is provided with one-way valve in the loop, and the loop sections that it is connected to said gas drive liquid pump output system maximum pressure prevents the interference of the delivery pressure in hand supercharging loop to other loops;
Said hand pump disposes the screw of releasing, for carrying out pressure release in the hand supercharging loop.
Said test stand also is provided with extension loop, and it comprises the stop valve that is connected to middle hydraulic circuit, comes to be this extension loop voltage supply; Said extension loop is perhaps handled outwards output of back through the decompressor or the supercharging device that are provided with in addition with the directly outwards output of middle pressure pressure.
Comprise several safety valves in the said test stand; The loop of said safety valve is set respectively, comprise said guide's control loop, said in the loop sections of hydraulic circuit, said gas drive liquid pump output system maximum pressure, and the different high tension loop of grade of the high-pressure of output and system's maximum pressure.
Said test stand is provided with the device of at least one this circuit pressure of monitoring in each loop; Several devices at least in all pressure monitoring devices are digital display manometers.
Said test stand also comprises several and is the device of corresponding loop pressure release, comprise and said high tension loop, said in hydraulic circuit, and the corresponding stop valve that connects of another road delivery outlet that is provided with separately of said some accumulators; The isolation ball valve that also comprises the corresponding connection of another road delivery outlet that is provided with separately with said low tension loop and said pneumatic circuit.
Compared with prior art, the hydraulic element test platform that the utility model provides, its advantage is: the utlity model has the output capability of senior middle school's low pressure of multichannel different brackets, to satisfy different test needs.For example can obtain the high pressure that multi-channel test is used through hand pump supercharging or gas drive liquid pump mode.Also system's maximum pressure that gas drive liquid pump mode obtains is reduced pressure the test pressure of pressing in obtaining through the one-level drawdown pump.In addition, this test stand also carries out the can regulate decompression to source of the gas, is output as two-way source of the gas test pressure via pneumatic circuit.
In order to make the operating mode of this test stand simulation well head control panel, and possess the ability of shock resistance test, make the wherein voltage supply control of accumulator centering hydraulic circuit, the guide's pilot pressure that whether is obtained pilot-actuated valve output by big pilot valve decides; Described guide's pilot pressure carries out obtaining after the another level decompression to system's maximum pressure, therefore can come the operate high pressure valve member with lower pressure, to realize safety operation and snap switch function.Also obtain the low pressure of two-way test usefulness after this grade decompression.
In a single day conventional hydraulic test bench has confirmed design, and the expansivity of back does not almost have, and need do very big change if increase new loop, and inner a lot of layouts also all need change, cause a lot of pipe arrangements to manufacture again.This test stand has then been reserved 2 tunnel extending space in advance, remains with the ability that continue to increase new loop, is provided with expansion slot in inside, and the pipeline interface that can have additional supply of easily increases the new loop of different pressures.
Except the part loop itself possesses the pressure release function, for example be big pilot valve and hand pump etc.; All be provided with Decompression valves for other all loops in the utility model, conveniently after test finishes, pressure release carried out in the loop, safe.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the said hydraulic element test platform of the utility model;
Fig. 2 is the structural representation of a kind of big pilot valve in the said hydraulic element test platform of the utility model;
Fig. 3 is the structural representation of a kind of control valve in the said hydraulic element test platform of the utility model.
Embodiment
Below in conjunction with the hydraulic schematic diagram shown in the accompanying drawing 1, the embodiment of the utility model is described.
The said hydraulic element test platform of the utility model is specially adapted to the test of well head control panel.The hydraulic system of test stand can provide the test loop of senior middle school's low pressure of a plurality of different brackets, and with from top to bottom order among Fig. 1, correspondence is called nine loops, first loop to the.
The power of test stand is obtained by gas drive liquid pump mode,, utilizes gas drive liquid pump 5.1 of compressed air-driven that is, and the hydraulic oil after making it to primary filter pressurizes, and the liquid of the certain pressure that will export thus is as the maximum pressure of whole hydraulic system; The pressure of different brackets is all shunted and is obtained from this system's maximum pressure on other each duplexure.The delivery pressure of gas drive liquid pump 5.1 is fixedly multiples of the bleed pressure of its voltage supply, and this multiple is the major parameter of gas drive liquid pump.In the present embodiment, what test stand adopted is that compression ratio is 151 gas drive liquid pump, and actual delivery pressure can satisfy system's needs up to 25000PSI in theory fully.
Therefore, in a mounted test stand,, actually, realizes bleed pressure through being regulated to the adjusting of the delivery pressure of gas drive liquid pump 5.1.Be the can regulate source of the gas of gas drive liquid pump 5.1 voltage supply, form through isolation ball valve 3.4, digital display manometer 10.8, oil and water seperator 15.1, another isolation ball valve 3.3 and reduction valve 8.1 backs that set gradually.Specifically be the reduction valve 8.1 through wherein, the pressure of input gas drive liquid pump 5.1 regulated, thereby the delivery pressure of gas drive liquid pump 5.1 is controlled.
In addition, above-mentioned digital display manometer is a kind of high-precision digital pressure gauge, and it can read force value more accurately with respect to the pointer pressure of routine, and is more convenient to the record of test data; And with respect to adopting the direct digital controller monitoring, digital display manometer does not need to be equipped with in addition miniature PLC system, is provided with easylier, has both provided cost savings and has saved the space yet.Therefore, all pressure monitor instrument on this test stand (except that pneumatic circuit hereinafter) has all been used described digital display manometer.
The hydraulic oil of input gas drive liquid pump 5.1 is carried out the device of primary filter, comprise the air-strainer 1.1, oil strainer 2.1, the liquid level liquid thermometer 4.1 that are equipped with, and the isolation ball valve 3.1 and 3.2 that is connected respectively with the two-way delivery outlet of this device; Wherein road hydraulic oil via isolation ball valve 3.1 outputs is transported to described gas drive liquid pump 5.1.After said gas drive liquid pump 5.1 pressurizations, be delivered to the oil strainer 2.2 of another high pressure again through a digital display manometer 10.9; The oil strainer 2.1 that the filter capacity of oil strainer 2.2 is provided with when being far longer than the front primary filter, thereby the turbidity test of fluid in the further assurance system.Be provided with safety valve 11.1 after the oil strainer 2.2, the maximum pressure that guarantees system maintains within one the safety range.
By another road hydraulic oil of said isolation ball valve 3.1 outputs, through behind hand pump 6.1, digital display manometer 10.1 and the stop valve 9.1, outwards output for example is the pressure of 20000PSI, forms the 9th loop thus successively.Hand pump 6.1 wherein is as a kind of subsequent use pressurizing tool, and the stop valve 9.1 that is engaged in its follow-up setting can be realized some simple tests flexibly.After hand pump 6.1, also be provided with an one-way valve 7.1, digital display manometer 10.8 positions that it is connected to after the gas drive liquid pump 5.1 prevent the 9th loop and the mutual interference mutually of loop, gas drive liquid pump 5.1 place.
System's maximum pressure via after said gas drive liquid pump 5.1 pressurizations and further the filtration begins to distribute, and wherein two the tunnel is high tension loop, corresponds to the highly pressurised liquid that test provides two kinds of different brackets, for example is 15000PSI and 10000PSI.Be provided with throw over switch in the utility model, so that mutual noninterference between the two-way high pressure, such design can reduce the quantity of gas drive liquid pump and the quantity of corresponding valve member configuration, can also reduce the volume of test stand, is beneficial to the flexibility of test stand more.
Concrete, after said safety valve 11.1, connect two stop valves 9.4 and 9.5 to form two independently high tension loops: the 8th loop and the 7th loop.Be respectively arranged with one-way valve 7.2 and 7.3, digital display manometer 10.2 and 10.3, stop valve 9.2 and 9.3 in these two high tension loops.Wherein one-way valve 7.2 and 7.3 is used to guarantee can not interfere with each other between these two loops; Stop valve 9.2 and 9.3 is used for bleed-off circuit pressure.Between the digital display manometer 10.3 and stop valve 9.3 in the 7th loop, also be provided with safety valve 11.2.Through when operating, pressurizeing one by one, making the outside output in the 8th loop for example is the road high pressure of 15000PSI; And outside output for example is another road high pressure of 10000PSI in the 7th loop.Because these two high tension loops are the general test static pressure that only needs when test, mainly the sealing of components and parts under certain working pressure is tested, and therefore in these two high tension loops, need not set up accumulator.
Middle hydraulic circuit is realized through a reduction valve 8.2: system's maximum pressure is delivered to this reduction valve 8.2 via stop valve 9.10; The delivery pressure of said reduction valve 8.2 reaches as high as 10000PSI, and scope commonly used is 500-6000PSI.Stop valve 9.4 in described stop valve 9.10 and the high tension loop is reciprocal interlockings, and operation panel is provided with the interlocking indication.
In the test of well head control panel, the use of centering hydraulic circuit is the most frequent, and in order to carry out shock resistance test to the part components and parts, hydraulic circuit is provided with accumulator 12.2 in this, as power reserve and provide the shock resistance test required surge pressure.This accumulator 12.2 can also serve as the components and parts of toucher to protect some to be impacted to the formal debugging of well head control panel the time.After said reduction valve 8.2, be provided with safety valve 11.3, digital display manometer 10.4, and be connected to the said accumulator 12.2 of middle hydraulic circuit through an isolation ball valve 3.6; The output of said accumulator 12.2 is connected with a stop valve 9.8 in addition and is used for pressure release.
After said digital display manometer 10.4 and isolation ball valve 3.6, be divided into two-way, the pressure that the stop valve 9.7 outside outputs of leading up to for example are 6000PSI forms the 6th loop, and the output terminal of stop valve 9.7 also is connected with the stop valve 9.6 that pressure release is used.Stop valve 9.6 and 9.7 is mainly reserved for extension loop, also can be used for test where necessary.Another road is provided with big pilot valve 13.1, and is connected to big pilot valve 13.1 digital display manometer 10.5 afterwards through stop valve 9.11, and the outside output in this loop for example is that the middle press liquid of 6000PSI forms one the 5th loop.
Cooperation is referring to Fig. 2, shown in Figure 3, and described big pilot valve 13.1 is two-position three way high pressure selector valves of guide's control; In guide's control loop, be provided with a pilot-actuated valve 14.1 and be connected with it, thereby can utilize lower pressure to operate this high pressure valve member, safe and reliable.In addition, because pilot-actuated valve 14.1 has only two kinds of working staties: "on" and "off", with drawing or push away realization, operation has been saved the operating time of conventional use stop valve control fast during operation.Concrete, when guide's control valve 14.1 was communicated to the PILOT mouth of big pilot valve 13.1 with pilot pressure, the IN mouth was communicated with rapidly with the OUT mouth in the big pilot valve 13.1, thereby the quick output of the big flow pressure in the accumulator 12.2 is used for the shock resistance test.And when guide's control valve 14.1 is closed, do not have guide's pilot pressure to be input to the PILOT mouth of big pilot valve 13.1, and delivery outlet OUT mouth will be connected with its return opening EX mouth in the big pilot valve 13.1, and do not have delivery pressure or be used for pressure release is carried out in the loop this moment.
Referring to Fig. 1, after the reduction valve 8.2 of middle hydraulic circuit, also be provided with another reduction valve 8.3, for guide's control loop and low tension loop pressure is provided simultaneously.Be provided with safety valve 11.4, digital display manometer 10.6 after the reduction valve 8.3, be connected to the accumulator 12.1 in loop through isolation ball valve 3.5; The output of this accumulator 12.1 is connected with the stop valve 9.9 that a pressure release is used in addition.After isolation ball valve 3.5, be divided into multichannel; One the tunnel is connected to big pilot valve 13.1 via described pilot-actuated valve 14.1; In addition two-way respectively outwards output for example be the low pressure of 500PSI forming the 4th loop and tertiary circuit, also have one the tunnel to connect the pressure release that isolation ball valve 3.6 is used for the 4th loop and tertiary circuit.
Be the source of the gas of this test stand voltage supply, except the power that said gas drive liquid pump 5.1 is provided, also having made up pneumatic circuit is that system provides adjustable source of the gas test pressure.Specifically be after said oil and water seperator 15.1, one-way valve 7.4, reduction valve 8.4, pressure display table 10.7, isolation ball valve 3.7 are set, last outwards output two-way for example is the pressure of 150PSI, thereby forms second loop and first loop.One-way valve 7.4 wherein is used to prevent the interference with other loops; Reduction valve 8.4 is used to regulate the source of the gas test pressure of output.After said isolation ball valve 3.7, also be provided with isolation ball valve 3.8 in addition and be said second loop and the first loop pressure release.
Below introduce in the above-mentioned hydraulic element test platform of the utility model the concrete voltage supply operating method in each loop:
A, use the 9th loop, the method so that hand supercharging is tested comprises following steps:
A1: guarantee that all stop valves are in closed condition in the test stand;
A2: open stop valve 9.1 and can observe digital display manometer 10.1 while operate hand pump 6.1, reach requirements up to pressure to the 9th loop voltage supply;
A3: when the needs pressure release, unclamp carry on the hand pump 6.1 the screw of releasing get final product.
B, use the 8th loop, the method that provides the high pressure of the first estate to test comprises following steps:
B1: guarantee that all stop valves are in closed condition in the test stand, open stop valve 9.4;
B2: be screwed onto reduction valve 8.1 the most loose earlier;
B3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.1 is tightened, observe digital display manometer 10.2, reach requirements up to pressure;
B4: opening stop valve 9.4 can be to the 8th loop voltage supply.;
B5: when the needs pressure release, close isolation ball valve 3.3 and stop air inlet, open stop valve 9.2 again and carry out pressure release.
C, use the 7th loop, the method that provides the high pressure of second grade to test, its step are similar when using the 8th loop, comprise:
C1: guarantee that all stop valves are in closed condition in the test stand, open stop valve 9.5;
C2: be screwed onto reduction valve 8.1 the most loose earlier;
C3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.1 is tightened, observe digital display manometer 10.3, reach requirements up to pressure;
C4: opening stop valve 9.5 can be to the 7th loop voltage supply;
C5: when the needs pressure release, close isolation ball valve 3.3 and stop air inlet, open stop valve 9.3 again and carry out pressure release.
Middle method of pressing test is carried out through extension loop in D, use the 6th loop, comprises following steps:
D1: guarantee that all stop valves are in closed condition in the test stand, open stop valve 9.10;
D2: be screwed onto reduction valve 8.1 the most loose earlier;
D3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.1 is tightened, observe digital display manometer 10.9, reach than requirements up to pressure and many numerical value of 1000PSI;
D4: the reduction valve 8.2 of hydraulic circuit is to requirements in the adjusting;
D5: opening stop valve 9.7 can be to the 6th loop voltage supply;
D6: when the needs pressure release, close isolation ball valve 3.3 and stop air inlet, open stop valve 9.6 again and carry out pressure release.
Press the method for test during carry out in E, use the 5th loop, comprise following steps:
E1: guarantee that all stop valves are in closed condition in the test stand, open stop valve 9.10;
E2: be screwed onto reduction valve 8.1 the most loose earlier;
E3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.1 is tightened, observe digital display manometer 10.9, reach than requirements up to pressure and many numerical value of 1000PSI;
E4: the reduction valve 8.2 of hydraulic circuit is to requirements in the adjusting;
E5: pull-up pilot-actuated valve 14.1 makes it to open, and can big pilot valve 13.1 be communicated with accumulator 12.2, and fast big flow voltage supply is carried out in the 5th loop;
E6: when the needs pressure release, take pilot-actuated valve 14.1 and make it to close, carry out pressure release via big pilot valve 13.1.
F, use the 4th and tertiary circuit carry out the method for low voltage experiment, comprise following steps:
F1: guarantee that all stop valves are in closed condition in the test stand, open stop valve 9.10;
F2: be screwed onto reduction valve 8.1 the most loose earlier;
F3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.1 is tightened, observe digital display manometer 10.9, reach 6000PSI up to pressure;
F4: regulate reduction valve 8.3 to requirements, to the 4th with the tertiary circuit voltage supply;
F5: when the needs pressure release, open isolation ball valve 3.6 and carry out pressure release.
G, only use second and first loop, the method through pneumatic circuit carries out the bleed pressure test comprises following steps:
G1: guarantee that isolation ball valve 3.3,3.7,3.8 all is in closed condition;
G2: be screwed onto reduction valve 8.4 the most loose earlier;
G3: open isolation ball valve 3.3 beginning air inlets, gradually reduction valve 8.4 is tightened, observe pressure display table 10.7, reach 200PSI up to pressure;
G4: open isolation ball valve 3.7, to the second and first loop voltage supply;
G5: when the needs pressure release, open isolation ball valve 3.8 and carry out pressure release.
In sum, the hydraulic element test platform that the utility model provides can provide the pressure of senior middle school's low pressure of multichannel different brackets for test; Be referred from the relevant function of well head control panel, utilize lower pressure to come the operate high pressure valve member, to realize safety operation and snap switch function.Therefore, the utility model is except having the function of conventional hydraulic test, the special test equipment that can also detect as well head control panel and relevant components and parts thereof, and remain with the expansion capability that continues to increase new pressure circuit.
Although the content of the utility model has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to the restriction to the utility model.After those skilled in the art have read foregoing, for the multiple modification of the utility model with to substitute all will be conspicuous.Therefore, the protection domain of the utility model should be limited appended claim.
Claims (9)
1. a hydraulic element test platform is characterized in that, is provided with:
Gas drive liquid pump (5.1), it utilizes compressed air-driven, exports after input hydraulic oil is wherein pressurizeed, and obtains system's maximum pressure of this test stand;
Said test stand establishes a plurality of loops that test pressure is provided respectively, comprises:
Several high tension loops are provided with separately: stop valve (9.4,9.5), and it is communicated to said system maximum pressure, comes the loop voltage supply for the place; One-way valve (7.2,7.3) prevents to belong to the mutual interference mutually in loop and other loops; Described several high tension loops, the high-pressure of the identical or different grade of corresponding output;
Hydraulic circuit at least one is provided with stop valve (9.10), and it is communicated to said system maximum pressure, comes the loop voltage supply for the place; Stop valve interlocking in middle hydraulic circuit and the high tension loop is provided with; Middle hydraulic circuit also is provided with: reduction valve (8.2) is pressure pressure in needed with the maximum pressure decompression of said system; Accumulator (12.2), it is connected to hydraulic circuit in this through isolation ball valve (3.6), lays in and provide middle impact test pressure of pressing; Big pilot valve (13.1), it is communicated with said accumulator (12.2) when receiving pilot pressure, and the impact test pressure of this accumulator (12.2) deposit is outwards exported; Delivery pressure or carry out pressure release not when not having pilot pressure on the big pilot valve (13.1);
Guide's control loop, itself and said middle hydraulic circuit are equipped with and for it pilot pressure are provided; Said guide's control loop is provided with reduction valve (8.2), and middle pressure pressure is further reduced pressure obtains needed low pressure; Accumulator (12.1), it is connected to this guide's control loop through isolation ball valve (3.5), lays in and provide low pressure; Pilot-actuated valve (14.1) is communicated with said accumulator (12.1) when it is opened, and with the low pressure of this accumulator (12.1) deposit, export to said in the big pilot valve (13.1) of hydraulic circuit as its pilot pressure; Pilot-actuated valve (14.1) is not exported pilot pressure when closing;
Several low tension loops, by itself and shared reduction valve (8.2) and accumulator (12.1) voltage supply of said guide's control loop, and corresponding outwards output several low pressure.
2. hydraulic element test platform as claimed in claim 1 is characterized in that:
The delivery pressure of said gas drive liquid pump (5.1) is the fixedly multiple for the bleed pressure of its voltage supply;
Be provided with oil and water seperator (15.1) in the said test stand said bleed pressure is handled, be provided with isolation ball valve (3.4) this oil and water seperator (15.1) voltage supply;
Also be provided with reduction valve (8.1) in the said test stand, the bleed pressure after it passes through another isolation ball valve (3.3) and said oil and water seperator (15.1) is handled is communicated with; This reduction valve (8.1) is regulated the delivery pressure of said gas drive liquid pump (5.1) through regulating bleed pressure.
3. hydraulic element test platform as claimed in claim 2 is characterized in that:
Said test stand also comprises pneumatic circuit, and its bleed pressure that is provided with in addition after reduction valve (8.4) is handled said oil and water seperator (15.1) is regulated, and obtains the source of the gas test pressure; Be provided with isolation ball valve (3.7) in the pneumatic circuit, be several delivery outlet voltage supply in this loop, outwards export said source of the gas test pressure via those delivery outlets; Also be provided with one-way valve (7.4) in the pneumatic circuit.
4. hydraulic element test platform as claimed in claim 1 is characterized in that:
Said test stand also is provided with the device that the hydraulic oil that will input to gas drive liquid pump (5.1) is carried out primary filter; Comprise the air-strainer (1.1), oil strainer (2.1), the liquid level liquid thermometer (4.1) that are equipped with, and with the isolation ball valve (3.1,3.2) of the corresponding connection of some delivery outlets of this device; Through one of them isolation ball valve (3.1) hydraulic oil behind the primary filter is delivered to said gas drive liquid pump (5.1);
Said test stand also comprises the oil strainer (2.2) that is applicable to high-pressure filteration, after its high-pressure that obtains after to said gas drive liquid pump (5.1) supercharging further filters, offers said high tension loop.
5. hydraulic element test platform as claimed in claim 4 is characterized in that:
Said test stand also comprises the hand supercharging loop, and it is provided with hand pump (6.1) hydraulic oil behind the primary filter is carried out hand supercharging, also is provided with stop valve (9.1) and outwards carries the test pressure that obtains through manual supercharging;
Also be provided with one-way valve (7.1) in the said hand supercharging loop, the loop sections that it is connected to said gas drive liquid pump (5.1) output system maximum pressure prevents the interference of the delivery pressure in hand supercharging loop to other loops;
Said hand pump (6.1) disposes the screw of releasing, for carrying out pressure release in the hand supercharging loop.
6. hydraulic element test platform as claimed in claim 1 is characterized in that:
Said test stand also is provided with extension loop, and it comprises the stop valve (9.7) that is connected to middle hydraulic circuit, comes to be this extension loop voltage supply; Said extension loop is perhaps handled outwards output of back through the decompressor or the supercharging device that are provided with in addition with the directly outwards output of middle pressure pressure.
7. like any described hydraulic element test platform in the claim 1 ~ 5, it is characterized in that:
Comprise several safety valves in the said test stand; The loop of said safety valve is set respectively, comprises the loop sections of said guide's control loop, said middle hydraulic circuit, said gas drive liquid pump (5.1) output system maximum pressure, and the grade and the different high tension loop of system's maximum pressure of output high-pressure.
8. like any described hydraulic element test platform in the claim 1 ~ 5, it is characterized in that:
Said test stand is provided with the device of at least one this circuit pressure of monitoring in each loop;
Several devices at least in all pressure monitoring devices are digital display manometers.
9. like any described hydraulic element test platform in the claim 1 ~ 6, it is characterized in that:
Said test stand also comprises several and is the device of corresponding loop pressure release, comprise and said high tension loop, said in hydraulic circuit, and the stop valve of the corresponding connection of another road delivery outlet that is provided with separately of said some accumulators (12.1,12.2); The isolation ball valve that also comprises the corresponding connection of another road delivery outlet that is provided with separately with said low tension loop and said pneumatic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120447444 CN202370938U (en) | 2011-11-14 | 2011-11-14 | Test bed for hydraulic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120447444 CN202370938U (en) | 2011-11-14 | 2011-11-14 | Test bed for hydraulic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370938U true CN202370938U (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120447444 Withdrawn - After Issue CN202370938U (en) | 2011-11-14 | 2011-11-14 | Test bed for hydraulic element |
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| Country | Link |
|---|---|
| CN (1) | CN202370938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444643A (en) * | 2011-11-14 | 2012-05-09 | 上海神开石油化工装备股份有限公司 | Test stand for hydraulic element |
| CN110749350A (en) * | 2019-10-29 | 2020-02-04 | 雪龙集团股份有限公司 | General tool for testing performance of electromagnetic valve |
| CN114526276A (en) * | 2022-04-25 | 2022-05-24 | 中海石油(中国)有限公司 | Special hydraulic station for testing functions of hydraulic reversing valve and testing method thereof |
-
2011
- 2011-11-14 CN CN 201120447444 patent/CN202370938U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444643A (en) * | 2011-11-14 | 2012-05-09 | 上海神开石油化工装备股份有限公司 | Test stand for hydraulic element |
| CN102444643B (en) * | 2011-11-14 | 2015-09-09 | 上海神开石油化工装备股份有限公司 | A kind of test stand for hydraulic element |
| CN110749350A (en) * | 2019-10-29 | 2020-02-04 | 雪龙集团股份有限公司 | General tool for testing performance of electromagnetic valve |
| CN114526276A (en) * | 2022-04-25 | 2022-05-24 | 中海石油(中国)有限公司 | Special hydraulic station for testing functions of hydraulic reversing valve and testing method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20150909 |
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| RGAV | Abandon patent right to avoid regrant |