CN104062116A - Method and system for testing stress on valve inside anti-blocking jet flow tube cleaner - Google Patents
Method and system for testing stress on valve inside anti-blocking jet flow tube cleaner Download PDFInfo
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- CN104062116A CN104062116A CN201410317785.5A CN201410317785A CN104062116A CN 104062116 A CN104062116 A CN 104062116A CN 201410317785 A CN201410317785 A CN 201410317785A CN 104062116 A CN104062116 A CN 104062116A
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Abstract
The invention provides a method and system for testing stress on a valve inside an anti-blocking jet flow tube cleaner. The method includes the steps that three grooves are hollowed out in a supporting plate at the rear end of the anti-blocking jet flow tube cleaner and used for installing miniature force transducers; sleeve elements with different lengths are machined according to the length of a valve rod so that the corresponding sleeve can be installed in the valve rod; a shim is machined so that the shim can be installed in the valve rod, and the outer diameter of the shim is larger than that of a stressed point of each miniature force transducer; the miniature force transducers are installed in the three hollowed-out grooves, and acquisition lines are externally connected to instruments and a computer data acquisition system; the shim and the sleeve are installed, the shim is made to just make contact with a microdynamometer, the gas flow is adjusted to the pipeline flow, and the air flow impact force is obtained through the data acquisition system and the instruments of the transducers. The method for testing the stress on the valve is wide in application range and can be used for tests and research on stress on valves of jet flow tube cleaners for tubes with different tube parameters.
Description
Technical field
The present invention relates to rabbit and manufacture field, more particularly, relate to a kind of Anti-blockage jet flow tube cleaner internal valves forces testing method and system.
Background technology
In rabbit manufacture field, for traditional rabbit, there is not internals, also do not have the problem of internals forces testing, but traditional rabbit is to make back pressure liter by leather cup or ball seal, and then before and after relying on, pressure reduction promotes its motion and carries out pigging.Due to the sealing of front and back, rabbit speed and gas velocity are suitable, cause pigging excessive velocities, cause rabbit upstream and downstream that serious blowby occurs, and make pigging Efficiency Decreasing; Inner-walls of duct has drag reduction or corrosion-inhibiting coating, and rabbit driving mechanical impurity and the inner-walls of duct of high-speed motion produce strong friction, destroys coating, shortens pipeline life; Large quantity of fluid gathers in rabbit downstream, make its especially when by fluctuating pipeline travelling speed, pressure change violently, cause system to be moved extremely unstable; Especially for the pigging of Large Diameter Pipeline pipeline, become rabbit high-speed cruising in pipeline that ton is heavy, produce huge momentum, elbow, logical ball indicator, ball collecting chamber etc. are produced to huge impact, possible damage equipment, rabbit, even cause pipeline to be revealed, thereby accidents caused; Rabbit, when arriving pipeline terminal, can be transported to a large amount of hydrops of whole pipeline in slug catcher in the short period of time fast, and liquid plug flow amount greatly, very easily causes the overload accident of drip catcher, and impact is normally produced.The Anti-blockage jet flow tube cleaner of designing and developing on this basis (Chinese utility model patent 201320602776.1), it exists internals not only can realize certain bypass, effectively address the above problem, but also can in rabbit blocking situation, by valve, be moved, shutoff gas flow, realizes building the pressure of rabbit and restarts.The realization of Anti-blockage function is to have used this key element of spring, is therefore necessary to study valve is stressed, and this problem is not solve in prior art.
Summary of the invention
The object of the invention is to provide a kind of Anti-blockage jet flow tube cleaner internal valves forces testing method and system, can carry out testing research for the inner key member spring stress of the Anti-blockage jet flow tube cleaner situation of existing design, to overcome the deficiencies in the prior art.
Anti-blockage jet flow tube cleaner is because certain resistance blocking is in gas pipeline, gas in pipelines can be blown to rabbit front end by rabbit rear end by by-pass port, gas can be subject to the Intercepting effects of spigot baffle, gas can produce certain gas impulsive force to spigot baffle, the equal size that all can impact power of the difference of gas flow rate, spigot baffle area has a certain impact, and the suffered gas shock power of blocking rabbit spigot baffle is the snap-in force of spring.And in valve gas shock power test process, we need to reduce the impact of miniature force cell on rabbit internal gas runner as far as possible, and to improve the precision of gas shock power test.
In view of above feature, a kind of Anti-blockage jet flow tube cleaner internal valves forces testing method of the application, is characterized in that comprising the following steps:
(1), will on three floors of Anti-blockage jet flow tube cleaner to be measured rear end back up pad, process 3 grooves, 3 grooves are to process to cephalad direction from rabbit afterbody, and 3 grooves are near the valve rod of T-shaped valve;
(2) 3 miniature force cells are arranged on respectively on 3 grooves, make the stress point of miniature force cell towards the caudal directions of rabbit, and the signal wire of miniature force cell is transported to instrument and computing machine outward;
(3), process annular shim liner, annular shim liner is placed on the valve rod of T-shaped valve, annular shim liner is close on the stress point of three miniature force cells;
(4), according to T-shaped valve length, processing length is less than the sleeve of T-shaped valve length, makes jacket casing be placed in the back segment of T-shaped valve, and barrel forward end is pressed close to above-mentioned annular shim liner; End at T-shaped valve is processed with external thread, and after being nested with upper bush by nut knob on external thread, by knob nut to regulate the displacement of T-shaped valve;
(5), by above-mentioned Anti-blockage jet flow tube cleaner blocking of having assembled miniature force cell, annular shim liner and sleeve in pipeline, the gas flow of pipeline is adjusted to required pipeline flow, with this understanding, utilize miniature force cell self instrument and existing computer acquisition system, can obtain the gas shock power under different displacements.
In above-mentioned steps (4), by regulating baffle plate that above-mentioned nut adjusts T-shaped valve displacement forward, described displacement is through after optimizing, and comprises 0,5mm, 7.5mm, 10mm, 12.5mm;
Then utilize the mode of step (5) to obtain the stress value of T-shaped valve under above-mentioned displacement; Can be used as and how spring is designed and needed parameter.
A kind of Anti-blockage jet flow tube cleaner internal valves forces testing system, comprise in prior art three miniature force cells with instrument and computer data acquiring device thereof, it is characterized in that comprising that one has hollow-core construction tubular body, this tubular body front end is provided with bellmouth; And in the cavity of tubular body, be provided with a T-shaped valve, this T-shaped valve is arranged on the inner chamber of described tubular body by 2 of front and back back up pad, and T-shaped valve can be along the length direction play of described tubular body; Described back up pad is engraved structure; The T-shaped end of described T-shaped valve is located at the front end of described tubular body, and is greater than the internal diameter of front end bellmouth; On three floors near the rear bearing sheet of T-shaped valve rear end, process 3 grooves, 3 grooves are to process to cephalad direction from tubular body afterbody, and 3 grooves are near the valve rod of T-shaped valve; Three described miniature force cells are arranged on respectively in 3 grooves, and the stress point of miniature force cell is towards the caudal directions of tubular body; Be placed in addition the annular shim liner on the valve rod of T-shaped valve, and annular shim liner is close on the stress point of three miniature force cells; Also comprise the sleeve that is placed on T-shaped valve back segment, and above-mentioned annular shim liner is pressed close in one end of sleeve; End at T-shaped valve is processed with external thread, and after being nested with upper bush by nut knob on external thread, by knob nut to regulate the displacement of T-shaped valve.
A kind of Anti-blockage jet flow tube cleaner internal valves forces testing system, comprise in prior art three miniature force cells with instrument and computer data acquiring device thereof, it is characterized in that comprising that one has hollow-core construction tubular body, this tubular body front end is provided with bellmouth; This bellmouth can obtain by the mode of tapered tube is installed in the front port of tubular body, on the outer wall of the rear and front end of described tubular body, interval arranges several mounting flanges and for supporting the flange floor of mounting flange, the rear and front end of tubular body has respectively a flow guiding disc and a plurality of leather cup by pressing plate flange, fastening bolt, to be fixed on the outer wall of tubular body; And be provided with isolation steel pipe between the flow guiding disc of described rear and front end and the leather cup of local terminal; And in the cavity of tubular body, be provided with a T-shaped valve, this T-shaped valve is arranged on the inner chamber of described tubular body by 2 of front and back back up pad, and T-shaped valve can be along the length direction play of described tubular body; Described back up pad is engraved structure; The T-shaped end of described T-shaped valve is located at the front end of described tubular body, and is greater than the internal diameter of front end bellmouth; On three floors near the rear bearing sheet of T-shaped valve rear end, process 3 grooves, 3 grooves are to process to cephalad direction from tubular body afterbody, and 3 grooves are near the valve rod of T-shaped valve; Three described miniature force cells are arranged on respectively in 3 grooves, and the stress point of miniature force cell is towards the caudal directions of tubular body; Be placed in addition the annular shim liner on the valve rod of T-shaped valve, and annular shim liner is close on the stress point of three miniature force cells; Also comprise the sleeve that is placed on T-shaped valve back segment, and above-mentioned annular shim liner is pressed close in one end of sleeve; End at T-shaped valve is processed with external thread, and after being nested with upper bush by nut knob on external thread, by knob nut to regulate the displacement of T-shaped valve.
The tapering of above-mentioned bellmouth can be 30 °-60 °.
Rabbit is in normal course of operation, spring element can't be received compression, and once rabbit Speed Reduction or even blocking are in pipeline, the poor increase of rabbit and gas velocity, valve is subject to gas shock power and increases, and spring is received certain pressure, and spring can be to rabbit head movement, until complete shutoff runner is realized the blocking of jet flow tube cleaner and is restarted.The present invention is in carrying out gas flow impact process, and its duration must not be lower than 10min; Instrument can be verified mutually with the numerical value that number extraction system obtains.
Valve forces testing method of the present invention has applicability widely, can carry out forces testing research to the valve of jet flow tube cleaner that different tube diameters is used, and microstructure has reduced the impact on gas flow simultaneously; Miniature force cell can be fixed in back up pad uniformly and stably, and its definite plane of institute is vertical with gas shock direction, basically identical to valve impact with air-flow in actual pipeline, can realize the accuracy of valve forces testing simultaneously; Miniature force cell is connected with computing machine, can realize the teletransmission of test signal, is also conducive to improve measuring accuracy.
Accompanying drawing explanation
Fig. 1 is the structural representation of forces testing system of the present invention.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is front elevation and the side view of undressed reeded rear bearing sheet.
Fig. 4 is front elevation and the side view of the reeded rear bearing sheet of processing.
Fig. 5 is front elevation and the side view that the rear bearing sheet of miniature force cell is installed in groove.
Fig. 6 is front elevation and the side view being provided with in Fig. 5 after shim liner.
Fig. 7 is the structural representation of another kind of Force of PIG test macro of the present invention.
Fig. 8 is the B-B cut-open view of Fig. 7.
Wherein, 1 flow guiding disc, 2 leather cups, 3 pressing plate flanges, 4 isolation steel pipes, 5 fastening bolts, 6 tubular bodies, 7 mounting flanges, 8 flange floors, 9 tapered tubes, 10a front end panel, 10b rear bearing sheet, 11T type valve, 12 miniature force cells, 13 shim liners, 14 sleeves, 15 nuts, 16 grooves.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described, but the inventive method is not limited to following instance.
Valve forces testing method of the present invention is carried out in accordance with the following steps:
Step 1, each component pieces of Anti-blockage jet flow tube cleaner is installed according to mode shown in Fig. 1,14 nuts are finally installed;
Step 2, advanced person's miniature force cell 12 is arranged on to the 10b back up pad place that has hollow hole, and its signal wire is transported to the outer digital displaying meter of pipeline outward;
Step 3, control miniature force cell stress point and be positioned at same plane, and 12 pads are arranged on to miniature force cell stress point institute in the plane;
Step 4, on 11 valve rod members installing sleeve, 13 barrel forward end are contacted with 12 shim liners, but do not produce acting force;
Step 5,14 nuts are installed on 11 valve rod members, guarantee that equally nut just contacts with sleeve and do not produce acting force.
Step 6, miniature force cell signal is transferred to computer data acquisition system, carry out load-bearing monitor.
Step 7, by jet flow tube cleaner blocking in test pipe, and open compressor gas suppliedly, a certain fixedly tolerance is provided, be no less than 10min stabilization time, carry out reading of stressed numerical value.
In rabbit operational process, can there is different decrements in spring, the sleeve of processing different length, test valve rod member suffered gas shock power when diverse location, thereby can design suitable spring, thereby realize the expectation function of Anti-blockage jet flow tube cleaner.
As Fig. 1-6, a kind of Anti-blockage jet flow tube cleaner internal valves forces testing system, comprise in prior art three miniature force cells 12 with instrument and computer data acquiring device thereof, it is characterized in that comprising that one has hollow-core construction tubular body 6, these tubular body 6 front ends are provided with bellmouth; And in the cavity of tubular body 6, be provided with a T-shaped valve 11, this T-shaped valve 11 is arranged on the inner chamber of described tubular body 6 by 2 of front and back back up pad (10a, 10b), and T-shaped valve 11 can be along the length direction play of described tubular body 6; Described back up pad is engraved structure; The T-shaped end of described T-shaped valve 11 is located at the front end of described tubular body 6, and is greater than the internal diameter of front end bellmouth; On three floors near the rear bearing sheet 10b of T-shaped valve 11 rear ends, processing 16,3 grooves 16 of 3 grooves is to process to cephalad direction from tubular body 6 afterbodys, and 3 grooves 16 are near the valve rod of T-shaped valve 11; Three described miniature force cells 12 are arranged on respectively in 3 grooves 16, and the stress point of miniature force cell 12 is towards the caudal directions of tubular body 6; Be placed in addition the annular shim liner 13 on the valve rod of T-shaped valve 11, and annular shim liner 13 is close on the stress point of three miniature force cells 12; Also comprise the sleeve 14 that is placed on T-shaped valve 11 back segments, and above-mentioned annular shim liner 13 is pressed close in one end of sleeve 14; End at T-shaped valve 11 is processed with external thread, and after being nested with upper bush 14 by nut 15 knobs on external thread, by knob nut 15 to regulate the displacement of T-shaped valve 11.
As Fig. 3-8, a kind of Anti-blockage jet flow tube cleaner internal valves forces testing system, comprises three miniature force cells 12 with instrument and computer data acquiring device thereof, and one have hollow-core construction tubular body 6, and these tubular body 6 front ends are provided with bellmouth; Bellmouth can be realized by tapered tube 9 is installed in tubular body 6 front ports, and bellmouth tapering can be 30 °-60 °; On the outer wall of tubular body 6 rear and front ends, interval arranges several mounting flanges 7 and for supporting the flange floor 8 of mounting flange 7, tubular body 6 rear and front ends have respectively a flow guiding disc 1 and a plurality of leather cup 2 to be fixed on the outer wall of tubular body 6 by pressing plate flange 3, fastening bolt 5; And between the flow guiding disc 1 of rear and front end and the leather cup 2 of local terminal, be provided with isolation steel pipe 4; And in the cavity of tubular body 6, be provided with a T-shaped valve 11, this T-shaped valve 11 is arranged on the inner chamber of described tubular body 6 by 2 of front and back back up pad (10a, 10b), and T-shaped valve can be along the length direction play of described tubular body 6; Described back up pad is engraved structure; The T-shaped end of T-shaped valve 11 is located at the front end of described tubular body 6, and is greater than the internal diameter of front end bellmouth; On three floors near the rear bearing sheet 10b of T-shaped valve 11 rear ends, processing 16,3 grooves 16 of 3 grooves is to process to cephalad direction from tubular body 6 afterbodys, and 3 grooves 16 are near the valve rod of T-shaped valve 11; Three miniature force cells 12 are arranged on respectively in 3 grooves 16, and the stress point of miniature force cell 12 is towards the caudal directions of tubular body 6; Be placed in addition the annular shim liner 13 on the valve rod of T-shaped valve 11, and annular shim liner 13 is close on the stress point of three miniature force cells 12; Also comprise the sleeve 14 that is placed on T-shaped valve 11 back segments, and above-mentioned annular shim liner 13 is pressed close in one end of sleeve 14; End at T-shaped valve 11 is processed with external thread, and after being nested with upper bush 14 by nut 15 knobs on external thread, by knob nut 15 to regulate the displacement of T-shaped valve 11.
Claims (5)
1. an Anti-blockage jet flow tube cleaner internal valves forces testing method, is characterized in that comprising the following steps:
(1), will on three floors of Anti-blockage jet flow tube cleaner to be measured rear end back up pad (10b), process 3 grooves (16), 3 grooves (16) are to process to cephalad direction from rabbit afterbody, and 3 grooves are near the valve rod of T-shaped valve (11);
(2) 3 miniature force cells (12) are arranged on respectively on 3 grooves, make the stress point of miniature force cell (12) towards the caudal directions of rabbit, and the signal wire of miniature force cell (12) is transported to instrument and computing machine outward;
(3), process annular shim liner (13), annular shim liner (13) is placed on the valve rod of T-shaped valve (11), annular shim liner (13) is close on the stress point of three miniature force-measuring sensings (12) device;
(4), according to T-shaped valve (11) length, processing length is less than the sleeve (14) of T-shaped valve (11) length, make sleeve (14) be placed on the back segment of T-shaped valve (11), and sleeve (14) front end is pressed close to above-mentioned annular shim liner (13); End at T-shaped valve (11) is processed with external thread, and be nested with upper bush (14) afterwards by nut (15) knob on external thread, by knob nut (15) to regulate the displacement of T-shaped valve (11).
(5), by above-mentioned assembled miniature force cell (12), annular shim liner (13) with the Anti-blockage jet flow tube cleaner blocking of sleeve (14) in pipeline, the gas flow of pipeline is adjusted to required pipeline flow, with this understanding, utilize miniature force cell self instrument and existing computer acquisition system, can obtain the gas shock power under different displacements.
2. a kind of Anti-blockage jet flow tube cleaner internal valves forces testing method as claimed in claim 1, it is characterized in that in above-mentioned steps (4), by regulating baffle plate that above-mentioned nut adjusts T-shaped valve (11) displacement forward, described displacement comprises 0,5mm, 7.5mm, 10mm, 12.5mm.
3. an Anti-blockage jet flow tube cleaner internal valves forces testing system, comprise that three with miniature force cell (12) and the computer data acquiring device thereof of instrument, it is characterized in that comprising that one has hollow-core construction tubular body (6), this tubular body (6) front end is provided with bellmouth; And in the cavity of tubular body (6), be provided with a T-shaped valve (11), this T-shaped valve (11) is arranged on the inner chamber of described tubular body (6) by 2 of front and back back up pad (10a, 10b), and T-shaped valve (11) can be along the length direction play of described tubular body (6); Described back up pad is engraved structure; The T-shaped end of described T-shaped valve (11) is located at the front end of described tubular body (6), and is greater than the internal diameter of front end bellmouth; On three floors of the rear bearing sheet (10b) of close T-shaped valve (11) rear end, process 3 grooves (16), 3 grooves (16) are to process to cephalad direction from tubular body (6) afterbody, and 3 grooves (16) are near the valve rod of T-shaped valve (11); Described three miniature force cells (12) are arranged on respectively in 3 grooves (16), and the stress point of miniature force cell (12) is towards the caudal directions of tubular body (6); Be placed in addition the annular shim liner (13) on the valve rod of T-shaped valve (11), and annular shim liner (13) is close on the stress point of three miniature force cells (12); Also comprise the sleeve (14) that is placed on T-shaped valve (11) back segment, and above-mentioned annular shim liner (13) is pressed close in one end of sleeve (14); End at T-shaped valve (11) is processed with external thread, and be nested with upper bush (14) afterwards by nut (15) knob on external thread, by knob nut (15) to regulate the displacement of T-shaped valve (11).
4. an Anti-blockage jet flow tube cleaner internal valves forces testing system, comprise that three with miniature force cell (12) and the computer data acquiring device thereof of instrument, it is characterized in that comprising that one has hollow-core construction tubular body (6), this tubular body (6) front end is provided with bellmouth; On the outer wall of the rear and front end of described tubular body (6), interval arranges several mounting flanges (7) and for supporting the flange floor (8) of mounting flange (7), the rear and front end of tubular body (6) has respectively a flow guiding disc (1) and a plurality of leather cup (2) to be fixed on the outer wall of tubular body (6) by pressing plate flange (3), fastening bolt (5); And between the leather cup (2) of the flow guiding disc of described rear and front end (1) and local terminal, be provided with isolation steel pipe (4); And in the cavity of tubular body (6), be provided with a T-shaped valve (11), this T-shaped valve (11) is installed on the inner chamber of described tubular body (6) by front and back (2) individual back up pad (10a, 10b), and T-shaped valve (11) can be along the length direction play of described tubular body (6); Described back up pad is engraved structure; The T-shaped end of described T-shaped valve (11) is located at the front end of described tubular body (6), and is greater than the internal diameter of front end bellmouth; On three floors of the rear bearing sheet (10b) of close T-shaped valve (11) rear end, process 3 grooves (16), 3 grooves (16) are to process to cephalad direction from tubular body (6) afterbody, and 3 grooves (16) are near the valve rod of T-shaped valve (11); Described three miniature force cells (12) are arranged on respectively in 3 grooves (16), and the stress point of miniature force cell (12) is towards the caudal directions of tubular body (6); Be placed in addition the annular shim liner (13) on the valve rod of T-shaped valve (11), and annular shim liner (13) is close on the stress point of three miniature force cells (12); Also comprise the sleeve (14) that is placed on T-shaped valve (11) back segment, and above-mentioned annular shim liner (13) is pressed close in one end of sleeve (1) 4; End at T-shaped valve (11) is processed with external thread, and be nested with upper bush (14) afterwards by nut (15) knob on external thread, by knob nut (15) to regulate the displacement of T-shaped valve (11).
5. the test macro as described in claim 3 or 4, is characterized in that the tapering of described bellmouth can be 30 °-60 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410317785.5A CN104062116B (en) | 2014-07-06 | 2014-07-06 | A kind of Anti-blockage jet flow tube cleaner internal valves forces testing method and system |
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| CN201410317785.5A CN104062116B (en) | 2014-07-06 | 2014-07-06 | A kind of Anti-blockage jet flow tube cleaner internal valves forces testing method and system |
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| CN104062116A true CN104062116A (en) | 2014-09-24 |
| CN104062116B CN104062116B (en) | 2016-05-25 |
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| CN111426465A (en) * | 2020-05-08 | 2020-07-17 | 合肥通用机械研究院有限公司 | Valve pressure test device |
| CN113945306A (en) * | 2021-10-08 | 2022-01-18 | 哈尔滨工程大学 | Sensor and method for measuring seating force of intake and exhaust valves of engine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104062116B (en) | 2016-05-25 |
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