CN109973468B - Pure, constant-pressure and accurate flow regulation oil source treatment system - Google Patents
Pure, constant-pressure and accurate flow regulation oil source treatment system Download PDFInfo
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- CN109973468B CN109973468B CN201910353940.1A CN201910353940A CN109973468B CN 109973468 B CN109973468 B CN 109973468B CN 201910353940 A CN201910353940 A CN 201910353940A CN 109973468 B CN109973468 B CN 109973468B
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 24
- 230000004323 axial length Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to a pure, constant-pressure and accurate flow regulation oil source treatment system, which comprises a multifunctional integrated tank, a pressure stabilizing tank group and a combined accurate flow regulation valve, wherein the multifunctional integrated tank comprises a tank body, an upper end cover matched with the tank body, a filter screen and an air isolation plate, the filter screen and the air isolation plate are arranged in the tank body, the upper end cover is hemispherical and matched with an upper port of the tank body, an overflow port communicated with the interior of the tank body is arranged at the top of the upper end cover, a four-way pipe joint is communicated with the overflow port, the other three joints of the four-way pipe joint are respectively communicated with an overflow valve, a bypass flow regulation valve and a pressure stabilizing pipe, the pressure stabilizing pipe is communicated with the pressure stabilizing tank group through a control valve, the upper end cover is correspondingly buckled on the upper port of the tank body and is sealed and fixed through a loose joint bolt, and the combined accurate flow regulation valve is communicated with an oil outlet of the tank body.
Description
Technical Field
The invention relates to the technical field of oil instrument inspection equipment, in particular to a pure, constant-pressure and accurate flow regulation oil source treatment system.
Background
The quality and accuracy of the instruments and meters used for metering or detecting the oil are directly related to the performance of equipment used by the oil, especially in the aviation field, the quality and accuracy of the instruments and meters are directly related to life safety problems, usually, the detection or verification of the instruments and meters is mainly performed by relying on corresponding equipment to perform experiments and detection, so that the accuracy and reliability of the instruments and meters are ensured, when the detection equipment is used for performing experiments, the quality of the oil and the adjustment of the oil flow are related, the quality of the oil directly influences the experimental result, so that the detection result of the accuracy and the reliability of the instruments and meters is interfered, therefore, the interference of the additional factors, such as impurities, air and the like mixed in the oil, is required to be discharged as much as possible in the detection equipment of the instruments and meters, and in addition, the flow adjustment is mainly dependent on a flow adjustment valve, the traditional flow adjustment valve is controlled by constant flow and time, the flow adjustment valve structure is relatively complex, the flow adjustment accuracy is low, the pipeline with small flow requirement can not be accurately controlled, the modern medium flow can only can be controlled approximately, and the detection result of the medium flow can not be met, and the technical requirements of the instrument detection are required by the instruments are met, and the technical requirements in the field are needed.
Disclosure of Invention
In order to solve the problems, the invention provides a pure, constant-pressure and accurate flow-regulating oil source treatment system.
The specific contents are as follows: the system comprises a multifunctional integrated tank, a pressure stabilizing tank group and a combined type precise flow regulating valve, and is characterized in that,
the multifunctional integrated tank comprises a tank body, an upper end cover matched with the tank body, a filter screen and an air baffle plate which are arranged in the tank body,
the tank body is a cylindrical barrel with an opening at the upper end and a hemispherical bottom, the side wall of the upper end of the tank body is provided with an oil inlet communicated with the interior of the tank body, the oil inlet is communicated with an oil inlet valve, the side wall of the lower end of the tank body is provided with an oil outlet communicated with the interior of the tank body, the bottom of the tank body is provided with a drain outlet communicated with the interior of the tank body, the drain outlet is communicated with a drain valve, the inner wall of the tank body is provided with an annular hanging lug protruding inwards in the radial direction, and the annular hanging lug is vertically positioned between the oil inlet and the oil outlet;
the filter screen is cylindrical with an opening at the upper end, the side wall and the bottom of the filter screen are provided with filter holes which are arranged according to a certain density, the outer diameter of the filter screen is equal to the inner diameter of the annular hanging lugs, the edge of a port on the filter screen is provided with annular convex edges which protrude outwards along the radial direction, the opening of the filter screen upwards and downwards passes through the annular hanging lugs, the filter screen is fixed with the annular hanging lugs through the convex edges, the filter screen is fixed with the annular hanging lugs through fastening bolts, and the fastening bolts vertically pass through the convex edges of the filter screen to be matched and screwed with threaded holes on the annular hanging lugs;
the air baffle is right opposite to the oil inlet and is obliquely fixed on the inner wall of the tank body, and the air baffle is positioned right above the filter screen, is obliquely downward toward one surface of the oil inlet and completely covers the cross section of the oil inlet;
the upper end cover is hemispherical and matched with the upper port of the tank body, the top of the upper end cover is provided with an overflow port communicated with the inside of the tank body, the overflow port is communicated with a four-way pipe joint, the other three joints of the four-way pipe joint are respectively communicated with an overflow valve, a bypass flow regulating valve and a pressure stabilizing pipe, the pressure stabilizing pipe is communicated with the pressure stabilizing tank group through a control valve, the upper end cover is correspondingly buckled on the upper port of the tank body and is sealed and fixed through at least four loose joint bolts uniformly distributed along the circumference,
the combined type accurate flow regulating valve is communicated with the oil outlet of the tank body and comprises a valve body and three valve cores with different specifications arranged in the valve body,
the valve body is internally provided with an inlet runner communicated with the outside, an outlet runner communicated with the outside and a valve cavity communicated with the inlet runner and the outlet runner in the valve body; the inlet flow passage is communicated with the oil outlet of the tank body, the valve cavity comprises three valve cavities A, B and C which are respectively and independently arranged, the valve cavity A is communicated with the inlet flow passage through the sub-flow passage A, the valve cavity B is communicated with the inlet flow passage through the sub-flow passage B, the valve cavity C is communicated with the inlet flow passage through the sub-flow passage C, and the valve cavity A, the valve cavity B and the valve cavity C are all communicated with the outlet flow passage;
the valve core comprises a valve core A, a valve core B and a valve core C, the valve core A is a cylinder matched with the inner diameter of the sub-flow passage A, the valve core A is coaxially plugged in the sub-flow passage A, one end of the valve core A is positioned in the valve cavity A, a disc-shaped sealing end plate A with the diameter larger than that of the valve core A and matched with the valve cavity A is coaxially fixed on the end surface of the valve core A, a valve rod A which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the sealing end plate A, the valve rod A is connected with the valve body through threads, a diversion passage A which is uniformly distributed along the outer circumferential surface of the valve core A and is cut inwards is arranged on the valve core A, the diversion passage A is formed by scanning and cutting along an arc-shaped path A by a fan-shaped contour, and the arc-shaped path A is coplanar with the axis of the valve core A and is stopped from the center of the end surface of the valve core A at one end of the sub-flow passage A to the outer circumferential surface of the valve core A;
the valve core B is a cylinder matched with the inner diameter of the sub-flow passage B, the valve core B is coaxially plugged in the sub-flow passage B, one end of the valve core B is positioned in the valve cavity B, a disc-shaped sealing end plate with the diameter larger than that of the valve core B and matched with the valve cavity B is coaxially fixed on the end face of one end of the valve core B, the outer end face of the sealing end plate B is coaxially fixed with a valve rod B which extends outwards and penetrates through the valve body, the valve rod B is connected with the valve body through threads, the valve core B is provided with a split passage B which is uniformly distributed along the outer circumferential surface and is cut inwards, the split passage B is formed by scanning and cutting a fan-shaped contour along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the valve core B and is stopped from the center of the end face of one end of the valve core B in the sub-flow passage B to the outer circumferential surface of the valve core B;
the valve core C is a cylinder matched with the inner diameter of the sub-flow passage C, the valve core C is coaxially plugged in the sub-flow passage C, one end of the valve core C is positioned in the valve cavity C, a disc-shaped sealing end plate C with the diameter larger than that of the valve core C and matched with the valve cavity C is coaxially fixed on the end face of one end of the valve core C positioned in the valve cavity C, a valve rod C which extends outwards and penetrates through the valve body is coaxially fixed on the outer end face of the sealing end plate C, and the valve rod C is connected with the valve body through threads; the valve core C is provided with a split runner C which is uniformly distributed along the outer circumferential surface and is cut inwards, the split runner C is formed by scanning and cutting a fan-shaped outline along an arc-shaped path C, the arc-shaped path C is coplanar with the axis of the valve core C, and the split runner C is stopped from the center of the end surface of one end of the valve core C in the sub-runner C to the outer circumferential surface of the valve core C.
Preferably, the loose joint bolt comprises a screw rod hinged to the outer wall of the tank body, a fixing lug horizontally fixed to the outer wall of the upper end cover and a nut matched with the screw rod, the free end of the fixing lug is provided with an installation bayonet matched with the screw rod, the screw rod corresponds to the position of the fixing lug and rotates the screw rod to penetrate through the installation bayonet on the fixing lug, and the upper end cover and the tank body are fixed in a sealing mode through screwing the nut.
Preferably, the oil inlet and the oil outlet are respectively positioned at two sides of the tank body.
Preferably, the area of the air baffle projected in the axial direction of the tank body is smaller than the cross-sectional area of the interior of the tank body.
Preferably, the nut and the fastening bolt are respectively fixed with a handle A and a handle B.
Preferably, the arc-shaped path A, the arc-shaped path B and the arc-shaped path C are one section of a parabola or one section of an ellipse.
Preferably, the arc-shaped path A, the arc-shaped path B and the arc-shaped path C are all sections of parabolas, the top points of the parabolas are respectively arranged at the starting points of the arc-shaped path A, the arc-shaped path B and the arc-shaped path C, and the focuses of the parabolas are respectively arranged at the axes of the valve core A, the valve core B and the valve core C.
Preferably, the arc path A, the arc path B and the arc path C are all sections of an ellipse, one vertex of a major axis of the ellipse is respectively a starting point of the arc path A, the arc path B and the arc path C, and focal points of the ellipse are respectively arranged on axes of the valve core A, the valve core B and the valve core C.
Preferably, a handle A is fixed on the free end of the valve rod A, a handle B is fixed on the free end of the valve rod B, and a handle C is fixed on the free end of the valve rod C.
Preferably, the axial length of the valve core A is matched with the transverse length of the valve cavity A, the axial length of the valve core B is matched with the transverse length of the valve cavity B, and the axial length of the valve core C is matched with the transverse length of the valve cavity C.
The beneficial technical effects of the invention are as follows:
the invention relates to a pure, constant-pressure and accurate flow regulation oil source treatment system, which is communicated with an oil way, oil enters a tank body through an oil inlet to directly impact on an air isolation plate, so that the oil is dispersed as much as possible, air in the oil is conveniently discharged, the influence on a detection experiment is avoided, an overflow port is arranged on an upper end cover, a pressure stabilizing tank group is communicated through the overflow port and is used for stabilizing the oil pressure of the tank body and the oil way, the oil enters a filter screen to be filtered and decontaminated, finally, the flow of a medium is regulated through a combined accurate flow regulating valve of the oil outlet of the tank body, and the accurate regulation of the medium flow is realized through the combined regulation of three valve cores with different specifications.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a clean, constant pressure, accurate flow regulating oil source treatment system;
FIG. 2 is a schematic main structure of the multifunctional integrated tank;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is an enlarged schematic view of FIG. 3A;
FIG. 5 is a front view of a combination precision flow control valve;
FIG. 6 is a schematic view showing a cross-sectional structure in the direction B-B in FIG. 5;
FIG. 7 is a schematic view of the cross-sectional structure in the direction C-C in FIG. 6;
FIG. 8 is a subjective structural schematic of valve core A;
FIG. 9 is a schematic view of the cross-sectional structure in the direction D-D in FIG. 8;
FIG. 10 is a schematic diagram of the subjective structure of valve element B;
FIG. 11 is a schematic view showing a cross-sectional structure in the direction E-E in FIG. 10;
FIG. 12 is a subjective structural schematic of valve core C;
FIG. 13 is a schematic view of the cross-sectional structure in the F-F direction in FIG. 12;
in the figure:
1. valve body, valve core A, valve core B, valve core C, 6, pressure stabilizing tank group, 7, combined accurate flow regulating valve;
11. valve cavity A, 12, valve cavity B, 13, valve cavity C, 14, sub-flow passage A, 15, sub-flow passage B, 16, sub-flow passage C, 17, inlet flow passage, 19, outlet flow passage, 21, valve stem A, 22, handle A, 23, sealing end plate A, 24, shunt passage A, 25, arc path A, 31, valve stem B, 32, handle B, 33, sealing end plate B, 34, shunt passage B, 35, arc path B, 41, valve stem C, 42, handle C, 43, sealing end plate C, 44, shunt passage C, 45, arc path C.
51. The tank body, 52, a filter screen, 53, an air baffle and 54, an upper end cover;
511. oil inlet, 512. Oil outlet, 513. Drain, 514. Annular lugs, 515. Oil inlet valve, 516. Four-way pipe joint, 517. Drain valve, 518. Bypass flow regulating valve, 519. Overflow valve, 521. Filter hole, 522. Flange, 523. Fastening bolt, 524. Handle B, 541. Overflow port, 542. Fixing lug, 543. Screw, 544 nut, 545. Handle A, 546 mounting bayonet.
61. A pressure stabilizing tube and 62. A control valve.
Detailed Description
1-13, a clean, constant pressure, accurate flow regulating oil source treatment system comprising a multifunctional integral tank, a pressure stabilizing tank set and a combined accurate flow regulating valve;
the multifunctional integrated tank comprises a tank body, an upper end cover matched with the tank body, a filter screen and an air baffle plate which are arranged in the tank body,
the tank body is a cylindrical barrel with an opening at the upper end and a hemispherical bottom, the side wall of the upper end of the tank body is provided with an oil inlet communicated with the interior of the tank body, the oil inlet is communicated with an oil inlet valve, the side wall of the lower end of the tank body is provided with an oil outlet communicated with the interior of the tank body, the bottom of the tank body is provided with a drain outlet communicated with the interior of the tank body, the drain outlet is communicated with a drain valve, the inner wall of the tank body is provided with an annular hanging lug protruding inwards in the radial direction, and the annular hanging lug is vertically positioned between the oil inlet and the oil outlet;
the filter screen is cylindrical with an opening at the upper end, the side wall and the bottom of the filter screen are provided with filter holes which are arranged according to a certain density, the outer diameter of the filter screen is equal to the inner diameter of the annular hanging lugs, the edge of a port on the filter screen is provided with annular convex edges which protrude outwards along the radial direction, the opening of the filter screen upwards and downwards passes through the annular hanging lugs, the filter screen is fixed with the annular hanging lugs through the convex edges, the filter screen is fixed with the annular hanging lugs through fastening bolts, and the fastening bolts vertically pass through the convex edges of the filter screen to be matched and screwed with threaded holes on the annular hanging lugs;
the air baffle is right opposite to the oil inlet and is obliquely fixed on the inner wall of the tank body, and the air baffle is positioned right above the filter screen, is obliquely downward toward one surface of the oil inlet and completely covers the cross section of the oil inlet;
the upper end cover is hemispherical and matched with the upper port of the tank body, the top of the upper end cover is provided with an overflow port communicated with the inside of the tank body, the overflow port is communicated with a four-way pipe joint, the other three joints of the four-way pipe joint are respectively communicated with an overflow valve, a bypass flow regulating valve and a pressure stabilizing pipe, the pressure stabilizing pipe is communicated with the pressure stabilizing tank group through a control valve, the upper end cover is correspondingly buckled on the upper port of the tank body and is sealed and fixed through at least four loose joint bolts uniformly distributed along the circumference,
the combined type accurate flow regulating valve is communicated with the oil outlet of the tank body and comprises a valve body and three valve cores with different specifications arranged in the valve body,
the valve body is internally provided with an inlet runner communicated with the outside, an outlet runner communicated with the outside and a valve cavity communicated with the inlet runner and the outlet runner in the valve body; the inlet flow passage is communicated with the oil outlet of the tank body, the valve cavity comprises three valve cavities A, B and C which are respectively and independently arranged, the valve cavity A is communicated with the inlet flow passage through the sub-flow passage A, the valve cavity B is communicated with the inlet flow passage through the sub-flow passage B, the valve cavity C is communicated with the inlet flow passage through the sub-flow passage C, and the valve cavity A, the valve cavity B and the valve cavity C are all communicated with the outlet flow passage;
the valve core comprises a valve core A, a valve core B and a valve core C, the valve core A is a cylinder matched with the inner diameter of the sub-flow passage A, the valve core A is coaxially plugged in the sub-flow passage A, one end of the valve core A is positioned in the valve cavity A, a disc-shaped sealing end plate A with the diameter larger than that of the valve core A and matched with the valve cavity A is coaxially fixed on the end surface of the valve core A, a valve rod A which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the sealing end plate A, the valve rod A is connected with the valve body through threads, a diversion passage A which is uniformly distributed along the outer circumferential surface of the valve core A and is cut inwards is arranged on the valve core A, the diversion passage A is formed by scanning and cutting along an arc-shaped path A by a fan-shaped contour, and the arc-shaped path A is coplanar with the axis of the valve core A and is stopped from the center of the end surface of the valve core A at one end of the sub-flow passage A to the outer circumferential surface of the valve core A;
the valve core B is a cylinder matched with the inner diameter of the sub-flow passage B, the valve core B is coaxially plugged in the sub-flow passage B, one end of the valve core B is positioned in the valve cavity B, a disc-shaped sealing end plate with the diameter larger than that of the valve core B and matched with the valve cavity B is coaxially fixed on the end face of one end of the valve core B, the outer end face of the sealing end plate B is coaxially fixed with a valve rod B which extends outwards and penetrates through the valve body, the valve rod B is connected with the valve body through threads, the valve core B is provided with a split passage B which is uniformly distributed along the outer circumferential surface and is cut inwards, the split passage B is formed by scanning and cutting a fan-shaped contour along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the valve core B and is stopped from the center of the end face of one end of the valve core B in the sub-flow passage B to the outer circumferential surface of the valve core B;
the valve core C is a cylinder matched with the inner diameter of the sub-flow passage C, the valve core C is coaxially plugged in the sub-flow passage C, one end of the valve core C is positioned in the valve cavity C, a disc-shaped sealing end plate C with the diameter larger than that of the valve core C and matched with the valve cavity C is coaxially fixed on the end face of one end of the valve core C positioned in the valve cavity C, a valve rod C which extends outwards and penetrates through the valve body is coaxially fixed on the outer end face of the sealing end plate C, and the valve rod C is connected with the valve body through threads; the valve core C is provided with a split runner C which is uniformly distributed along the outer circumferential surface and is cut inwards, the split runner C is formed by scanning and cutting a fan-shaped outline along an arc-shaped path C, the arc-shaped path C is coplanar with the axis of the valve core C, and the split runner C is stopped from the center of the end surface of one end of the valve core C in the sub-runner C to the outer circumferential surface of the valve core C.
The loose joint bolt comprises a screw rod hinged to the outer wall of the tank body, a fixing lug horizontally fixed to the outer wall of the upper end cover and a nut matched with the screw rod, wherein the free end of the fixing lug is provided with an installation bayonet matched with the screw rod, the screw rod corresponds to the fixing lug in position and rotates the screw rod to enable the screw rod to penetrate through the installation bayonet on the fixing lug, and the upper end cover is fixed with the tank body in a sealing mode through screwing the nut.
The oil inlet and the oil outlet are respectively positioned at two sides of the tank body.
The area of the gas barrier projected in the axial direction of the tank body is smaller than the cross-sectional area of the interior of the tank body.
And the nut and the fastening bolt are respectively fixed with a handle A and a handle B.
The arc path A, the arc path B and the arc path C are parabolic sections or elliptical sections, and the arc path can be designed into other linear arcs according to actual needs.
The arc-shaped path A, the arc-shaped path B and the arc-shaped path C are all sections of parabolas, the top points of the parabolas are respectively arranged at the starting points of the arc-shaped path A, the arc-shaped path B and the arc-shaped path C, and the focuses of the parabolas are respectively arranged at the axes of the valve core A, the valve core B and the valve core C.
The arc path A, the arc path B and the arc path C are all one section of ellipse, one vertex of the major axis of the ellipse is the starting point of the arc path A, the arc path B and the arc path C respectively, and the focus of the ellipse is on the axes of the valve core A, the valve core B and the valve core C respectively.
A handle A is fixed on the free end of the valve rod A, a handle B is fixed on the free end of the valve rod B, and a handle C is fixed on the free end of the valve rod C.
The axial length of the valve core A is matched with the transverse length of the valve cavity A, the axial length of the valve core B is matched with the transverse length of the valve cavity B, and the axial length of the valve core C is matched with the transverse length of the valve cavity C.
The working process and principle of the invention are as follows:
the invention relates to a pure, constant-pressure and accurate flow regulation oil source treatment system, which is communicated with an oil way, oil enters a tank body through an oil inlet to directly impact on an air isolation plate, so that the oil is dispersed as much as possible, air in the oil is conveniently discharged, the influence on a detection experiment is avoided, an overflow port is arranged on an upper end cover, a pressure stabilizing tank group is communicated through the overflow port and is used for stabilizing the oil pressure of the tank body and the oil way, the oil enters a filter screen to be filtered and decontaminated, finally, the flow of a medium is regulated through a combined accurate flow regulating valve of the oil outlet of the tank body, and the accurate regulation of the medium flow is realized through the combined regulation of three valve cores with different specifications.
Claims (8)
1. The system comprises a multifunctional integrated tank, a pressure stabilizing tank group and a combined type precise flow regulating valve, and is characterized in that,
the multifunctional integrated tank comprises a tank body, an upper end cover matched with the tank body, a filter screen and an air baffle plate which are arranged in the tank body,
the tank body is a cylindrical barrel with an opening at the upper end and a hemispherical bottom, the side wall of the upper end of the tank body is provided with an oil inlet communicated with the interior of the tank body, the oil inlet is communicated with an oil inlet valve, the side wall of the lower end of the tank body is provided with an oil outlet communicated with the interior of the tank body, the bottom of the tank body is provided with a drain outlet communicated with the interior of the tank body, the drain outlet is communicated with a drain valve, the inner wall of the tank body is provided with an annular hanging lug protruding inwards in the radial direction, and the annular hanging lug is vertically positioned between the oil inlet and the oil outlet;
the filter screen is cylindrical with an opening at the upper end, the side wall and the bottom of the filter screen are provided with filter holes which are arranged according to a certain density, the outer diameter of the filter screen is equal to the inner diameter of the annular hanging lugs, the edge of a port on the filter screen is provided with annular convex edges which protrude outwards along the radial direction, the opening of the filter screen upwards and downwards passes through the annular hanging lugs, the filter screen is fixed with the annular hanging lugs through the convex edges, the filter screen is fixed with the annular hanging lugs through fastening bolts, and the fastening bolts vertically pass through the convex edges of the filter screen to be matched and screwed with threaded holes on the annular hanging lugs;
the air baffle is right opposite to the oil inlet and is obliquely fixed on the inner wall of the tank body, and the air baffle is positioned right above the filter screen, is obliquely downward toward one surface of the oil inlet and completely covers the cross section of the oil inlet;
the upper end cover is hemispherical and matched with the upper port of the tank body, the top of the upper end cover is provided with an overflow port communicated with the inside of the tank body, the overflow port is communicated with a four-way pipe joint, the other three joints of the four-way pipe joint are respectively communicated with an overflow valve, a bypass flow regulating valve and a pressure stabilizing pipe, the pressure stabilizing pipe is communicated with the pressure stabilizing tank group through a control valve, the upper end cover is correspondingly buckled on the upper port of the tank body and is sealed and fixed through at least four loose joint bolts uniformly distributed along the circumference,
the combined type accurate flow regulating valve is communicated with the oil outlet of the tank body and comprises a valve body and three valve cores with different specifications arranged in the valve body,
the valve body is internally provided with an inlet runner communicated with the outside, an outlet runner communicated with the outside and a valve cavity communicated with the inlet runner and the outlet runner in the valve body; the inlet flow passage is communicated with the oil outlet of the tank body, the valve cavity comprises three valve cavities A, B and C which are respectively and independently arranged, the valve cavity A is communicated with the inlet flow passage through the sub-flow passage A, the valve cavity B is communicated with the inlet flow passage through the sub-flow passage B, the valve cavity C is communicated with the inlet flow passage through the sub-flow passage C, and the valve cavity A, the valve cavity B and the valve cavity C are all communicated with the outlet flow passage;
the valve core comprises a valve core A, a valve core B and a valve core C, the valve core A is a cylinder matched with the inner diameter of the sub-flow passage A, the valve core A is coaxially plugged in the sub-flow passage A, one end of the valve core A is positioned in the valve cavity A, a disc-shaped sealing end plate A with the diameter larger than that of the valve core A and matched with the valve cavity A is coaxially fixed on the end surface of the valve core A, a valve rod A which extends outwards and penetrates through the valve body is coaxially fixed on the outer end surface of the sealing end plate A, the valve rod A is connected with the valve body through threads, a diversion passage A which is uniformly distributed along the outer circumferential surface of the valve core A and is cut inwards is arranged on the valve core A, the diversion passage A is formed by scanning and cutting along an arc-shaped path A by a fan-shaped contour, and the arc-shaped path A is coplanar with the axis of the valve core A and is stopped from the center of the end surface of the valve core A at one end of the sub-flow passage A to the outer circumferential surface of the valve core A;
the valve core B is a cylinder matched with the inner diameter of the sub-flow passage B, the valve core B is coaxially plugged in the sub-flow passage B, one end of the valve core B is positioned in the valve cavity B, a disc-shaped sealing end plate with the diameter larger than that of the valve core B and matched with the valve cavity B is coaxially fixed on the end face of one end of the valve core B, the outer end face of the sealing end plate B is coaxially fixed with a valve rod B which extends outwards and penetrates through the valve body, the valve rod B is connected with the valve body through threads, the valve core B is provided with a split passage B which is uniformly distributed along the outer circumferential surface and is cut inwards, the split passage B is formed by scanning and cutting a fan-shaped contour along an arc-shaped path B, and the arc-shaped path B is coplanar with the axis of the valve core B and is stopped from the center of the end face of one end of the valve core B in the sub-flow passage B to the outer circumferential surface of the valve core B;
the valve core C is a cylinder matched with the inner diameter of the sub-flow passage C, the valve core C is coaxially plugged in the sub-flow passage C, one end of the valve core C is positioned in the valve cavity C, a disc-shaped sealing end plate C with the diameter larger than that of the valve core C and matched with the valve cavity C is coaxially fixed on the end face of one end of the valve core C positioned in the valve cavity C, a valve rod C which extends outwards and penetrates through the valve body is coaxially fixed on the outer end face of the sealing end plate C, and the valve rod C is connected with the valve body through threads; the valve core C is provided with a split runner C which is uniformly distributed along the outer circumferential surface and is cut inwards, the split runner C is formed by scanning and cutting a fan-shaped contour along an arc-shaped path C, the arc-shaped path C is coplanar with the axis of the valve core C, and the split runner C is stopped from the center of the end surface of one end of the valve core C in the sub-runner C to the outer circumferential surface of the valve core C;
the movable joint bolt comprises a screw rod hinged to the outer wall of the tank body, a fixing lug horizontally fixed on the outer wall of the upper end cover and a nut matched with the screw rod, the free end of the fixing lug is provided with an installation bayonet matched with the screw rod, the screw rod corresponds to the fixing lug in position and rotates the screw rod to penetrate through the installation bayonet on the fixing lug, and the upper end cover and the tank body are fixed in a sealing mode through screwing the nut;
the oil inlet and the oil outlet are respectively positioned at two sides of the tank body.
2. The clean, constant pressure, accurate flow regulating oil source processing system of claim 1, wherein: the area of the gas barrier projected in the axial direction of the tank body is smaller than the cross-sectional area of the interior of the tank body.
3. The clean, constant pressure, accurate flow regulating oil source processing system of claim 1, wherein: and the nut and the fastening bolt are respectively fixed with a handle A and a handle B.
4. The clean, constant pressure, accurate flow regulating oil source processing system of claim 1, wherein: the arc-shaped path A, the arc-shaped path B and the arc-shaped path C are all one section of a parabola or one section of an ellipse.
5. The clean, constant pressure, accurate flow regulating oil source processing system of claim 4, wherein: the arc-shaped path A, the arc-shaped path B and the arc-shaped path C are all sections of parabolas, the top points of the parabolas are respectively arranged at the starting points of the arc-shaped path A, the arc-shaped path B and the arc-shaped path C, and the focuses of the parabolas are respectively arranged at the axes of the valve core A, the valve core B and the valve core C.
6. The clean, constant pressure, accurate flow regulating oil source processing system of claim 4, wherein: the arc path A, the arc path B and the arc path C are all one section of ellipse, one vertex of the major axis of the ellipse is the starting point of the arc path A, the arc path B and the arc path C respectively, and the focus of the ellipse is on the axes of the valve core A, the valve core B and the valve core C respectively.
7. The clean, constant pressure, accurate flow regulating oil source processing system of claim 1, wherein: a handle A is fixed on the free end of the valve rod A, a handle B is fixed on the free end of the valve rod B, and a handle C is fixed on the free end of the valve rod C.
8. The clean, constant pressure, accurate flow regulating oil source processing system of claim 1, wherein: the axial length of the valve core A is matched with the transverse length of the valve cavity A, the axial length of the valve core B is matched with the transverse length of the valve cavity B, and the axial length of the valve core C is matched with the transverse length of the valve cavity C.
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| CN201910353940.1A CN109973468B (en) | 2019-04-29 | 2019-04-29 | Pure, constant-pressure and accurate flow regulation oil source treatment system |
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| CN102996541A (en) * | 2011-09-08 | 2013-03-27 | 上海立新液压有限公司 | Manual proportional directional flow control valve |
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