CN108150677B - Multi-way valve - Google Patents
Multi-way valve Download PDFInfo
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- CN108150677B CN108150677B CN201810179958.XA CN201810179958A CN108150677B CN 108150677 B CN108150677 B CN 108150677B CN 201810179958 A CN201810179958 A CN 201810179958A CN 108150677 B CN108150677 B CN 108150677B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/207—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with two handles or actuating mechanisms at opposite sides of the housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a multiway valve, comprising: a valve body having a metering port, a collection port, and a plurality of liquid inlets; the liquid inlet and the liquid collecting and delivering port are communicated with the valve cavity in the valve body; two valve cores which extend into the valve cavity; wherein: the liquid inlets are divided into two groups; the two groups of liquid inlets are respectively arranged circumferentially so that the two valve cores can correspondingly control the two groups of liquid inlets through rotation, and any one of the liquid inlets in any group of liquid inlets can be selectively communicated with the metering port. The multi-way valve has the advantages that: the two liquid inlets are communicated with the metering port by rotating the two valve cores respectively, and the metering port can measure the flow of the oil passing through the two liquid inlets simultaneously; the on-off of the liquid inlet and the metering inlet is controlled by the two valve cores, so that the mode of measuring the oil flow is more flexible; the liquid inlet is controlled by the two valve cores, so that the number of single wells connected with the valve body is multiplied, and the valve is more advantageous when the valve is applied to a limited space with high pressure and large size requiring multiple wells.
Description
Technical Field
The invention relates to a multi-way valve, belonging to the field of oil and gas gathering and transportation systems in petroleum, chemical industry and the like.
Background
The multi-way valve is an important component in crude oil exploitation equipment, and is provided with a plurality of oil ports (or called liquid inlets), and the oil ports are connected with pipelines (including metering pipelines, liquid inlet pipelines and gathering pipelines) for conveying oil. The chinese patent application No. 201520080459.7 provides a multi-way valve, in which an upper valve body is provided with a plurality of oil ports along a circumferential direction thereof, and corresponding metering lines and liquid supply lines are required to be arranged along the circumferential direction of the upper valve body so as to be connected with the oil ports. However, the circumferential arrangement of the metering pipelines and more liquid supply pipelines makes the planar space occupation of the multi-way valve larger, and the pipeline arrangement is complicated; but also increases the bearing space of the valve body cavity, which means that the wall thickness of the valve body is increased and the total weight of the valve body is increased, which are all disadvantageous factors.
In order to solve the above-mentioned problems, chinese patent publication No. CN107191627a discloses a multi-way valve, in which the left and right valve bodies of the multi-way valve are relatively arranged, so that the multi-way valve is changed from the original single plane into two planes of space, and the interlayer space layout is implemented, so that the number of single wells connected is double that of the single wells of the existing single-layer multi-way valve, that is, if the multi-way valve disclosed in the patent is used to connect the same number of pipelines as the multi-way valve in the prior art, the multi-way valve disclosed in the patent has the advantages of smaller occupied space and lighter weight.
However, the multiway valve disclosed in this patent suffers from the following drawbacks:
the multi-way valve is provided with only one valve core, a plurality of liquid inlets of the multi-way valve are selectively communicated with the metering ports of the multi-way valve only through control of one valve core, when the number of liquid inlets is increased, the diameters of circles where the liquid inlets are arranged are increased due to circumferential arrangement of the liquid inlets, and the liquid inlets are usually formed on a vertical plane, so that the size of the whole multi-way valve in the vertical direction is increased, and the occupied space of the multi-way valve in the vertical direction is increased.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a multi-way valve capable of realizing interlayer space layout, the number of single wells which can be connected is multiplied, and the occupation of plane space can be saved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a multiway valve, comprising:
a valve body having a metering port, a collection port, and a plurality of liquid inlets; the liquid inlet and the liquid collecting and conveying port are communicated to a valve cavity in the valve body;
two valve cores which extend into the valve cavity; wherein:
the liquid inlets are divided into two groups; each group of liquid inlet is circumferentially arranged, and the two valve cores are respectively correspondingly used for controlling the two groups of liquid inlet, so that any one of the liquid inlet can be selectively communicated with the metering port through the rotation of the corresponding valve core.
Preferably, the valve chamber has two opposing chamber walls; the two groups of liquid inlets respectively penetrate through the two cavity walls correspondingly; and each group of liquid inlet is respectively arranged around the circumference of the corresponding valve core.
Preferably, a liquid guide channel is formed at the part of the valve core in the valve cavity, and two ends of the liquid guide channel are respectively a butt joint end and a gating end; the butt joint ends of the two liquid guide channels are respectively in butt joint with the metering port, and the gating ends of the two liquid guide channels are respectively used for being selectively in butt joint with the two groups of liquid inlet for communication.
Preferably, the metering port extends into the valve chamber and forms two oppositely facing ports; the two butt joint ends of the two liquid guide channels are respectively in butt joint with the two ports.
Preferably, the valve body comprises a middle valve body and a left valve body and a right valve body which are positioned at two sides of the middle valve body to be respectively butted with the middle valve body to enclose the valve cavity, and the two groups of liquid inlets are respectively formed in the left valve body and the right valve body; the two valve cores extend into the valve cavity from the left valve body and the right valve body respectively; the metering port and the collecting and conveying port are positioned on the middle valve body.
Preferably, the method comprises the steps of,
the two valve cores are respectively a left valve core and a right valve core;
the left valve body and the right valve body are respectively provided with a left mounting hole and a right mounting hole correspondingly, the left valve core penetrates through the left mounting hole to extend into the valve cavity, and the right valve core penetrates through the right mounting hole to extend into the valve cavity;
a sealing component is arranged between the left valve core and the left mounting hole and between the right valve core and the right mounting hole;
the sealing component comprises an outer sleeve, an inner sleeve and sealing filler; the first end of the outer sleeve is provided with a baffle ring, and the first end of the inner sleeve stretches into the outer sleeve from the second end of the outer sleeve; the sealing filler is arranged between the baffle ring and the second end of the inner sleeve, and when the first ends of the inner sleeves of the two sealing assemblies respectively extend into the space between the left valve core and the left mounting hole and the space between the right valve core and the right mounting hole to finish assembly, the sealing filler of the two sealing assemblies respectively covers the left valve core and the right valve core.
Preferably, a flange plate is erected on the outer side of the valve body; the part of the valve core, which is positioned outside the valve body, penetrates through the flange plate; an external power mechanism is assembled on the flange plate and used for driving the valve core to rotate.
Preferably, a shaft shoulder is formed on one section of the valve core penetrating through the flange plate; a thrust bearing is arranged at the shaft shoulder; the thrust bearing is pushed by the head of the top cover sleeved on the valve core so as to be tightly abutted against the shaft shoulder, and an adjusting gap is formed between the tail of the top cover and the flange plate.
Preferably, sliding bearings are respectively arranged in two ports of the metering port, butt joint ends of liquid guide channels of the two valve cores respectively extend into the sliding bearings, and sealing rings are arranged between the sliding bearings and the butt joint ends.
Compared with the prior art, the multi-way valve has the beneficial effects that:
1. the two groups of the plurality of liquid inlets are circumferentially arranged, compared with the two groups of the plurality of liquid inlets which are circumferentially arranged through only one group, the diameter of a circle where each group of the two groups of the plurality of liquid inlets is located is reduced, and when the plane determined by each group of liquid inlets is a vertical plane, the size of the valve body in the vertical direction can be reduced, so that under the condition of connecting the same number of pipelines, the vertical space occupied by the multi-way valve is smaller (or the thickness size of the multi-way valve is smaller).
2. The on-off of the liquid inlet 15 and the metering inlet 16 is controlled by the two valve cores, so that the mode of measuring the oil flow is more flexible.
3. The liquid inlet is controlled by the two valve cores, so that the number of single wells connected with the valve body is multiplied, and the valve is more advantageous when the valve is applied to a limited space with high pressure and large size requiring multiple wells.
Drawings
Fig. 1 is a front cross-sectional view of a multiway valve according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is an enlarged view of a portion B of fig. 1.
Fig. 4 is an enlarged view of a portion C of fig. 1.
Fig. 5 is an enlarged view of a portion D of fig. 1.
Fig. 6 is a front view of a multiway valve according to an embodiment of the present invention.
Fig. 7 is a left side view of a multiway valve according to an embodiment of the present invention.
In the figure:
10-a valve body; 11-left valve body; 12-right valve body; 13-a middle valve body; 14-valve cavity; 15-liquid inlet; 16-a metering port; 17-collecting and conveying port; 21-left valve core; 22-right valve core; 23-a liquid guide channel; 231-butt end; 232—a gate terminal; 30-a flange plate; 31-transition disc; 32-top cover; 33-thrust bearings; 40-sliding bearings; 61-valve seat ring; 62-thrust ring; 63-a spring; 64-internal hexagonal nut.
Detailed Description
The present invention will be described in detail below with reference to the drawings and detailed description to enable those skilled in the art to better understand the technical scheme of the present invention.
As shown in fig. 1 and 2, the embodiment of the present invention discloses a multiway valve for connecting a pipeline for delivering oil. The multiway valve comprises a valve body 10 and two valve cores. The valve body 10 is internally provided with a valve cavity 14, and the valve body 10 is provided with a metering port 16, a collecting and delivering port 17 and a plurality of liquid inlet ports 15, wherein the liquid inlet ports 15 and the collecting and delivering port 17 are communicated with the valve cavity 14 in the valve body 10. The metering port 16 is used for measuring the flow rate of oil, and the collecting and delivering port 17 is used for collecting the oil entering the valve cavity 14 from the liquid port 15. The two valve cores extend into the valve cavity 14, wherein a plurality of liquid inlets 15 are divided into two groups, the two groups of liquid inlets 15 are respectively arranged circumferentially, the two valve cores respectively control the two groups of liquid inlets 15 correspondingly, namely, one valve core selectively enables any one liquid inlet 15 in the corresponding group of liquid inlets 15 to be communicated with the metering port 16 through rotation; the other valve element selectively communicates any one of the corresponding other sets of liquid inlet ports 15 with the metering port 16 by rotation.
It is easy to understand that: the circle center of the circle defined by each group of circumferentially arranged liquid inlets 15 is located on the rotation center line of the corresponding valve core.
The invention divides the liquid inlet into two groups which are circumferentially arranged and respectively utilizes the two valve cores to control the on-off of the liquid inlet 15 and the metering port 16, and has the advantages that:
1. the two groups of the plurality of liquid inlets 15 are circumferentially arranged, and the diameter of the circle in which each of the two groups is located is reduced compared with the case where the circumferential arrangement is performed by only one group, and when the plane defined by each group of liquid inlets 15 is a vertical plane, the size of the valve body 10 in the vertical direction can be reduced, so that the vertical space occupied by the multiple-way valve (or the thickness size of the multiple-way valve) can be made smaller under the condition of connecting the same number of pipelines.
2. Any one of the valve cores can be rotated to enable any one of the liquid inlet 15 to be communicated with the metering port 16, so that the flow rate of the oil passing through the liquid inlet 15 can be measured.
3. The on-off of the liquid inlet 15 and the metering inlet 16 is controlled by the two valve cores, so that the mode of measuring the oil flow is more flexible.
4. The liquid inlet is controlled by the two valve cores, so that the number of single wells connected with the valve body is multiplied, and the valve is more advantageous when the valve is applied to a limited space with high pressure and large size requiring multiple wells.
5. The valve cores are conveniently arranged, so that the two valve cores do not interfere when the liquid inlet 15 and the metering port 16 are respectively communicated through rotation.
In the present invention, there are various arrangements of two spools, for example, one of the spools may extend into the valve chamber 14 from the left side of the valve body 10, and the other spool may extend into the valve chamber 14 from the upper end of the valve body 10; for another example, one of the spools may extend into the valve chamber 14 from the right side of the valve body 10, with the other spool extending into the spool from the upper end of the valve body 10; for another example, two spools may simultaneously extend into the valve cavity 14 from the upper, left, right, and lower ends of the valve body 10.
In a preferred embodiment of the invention, the two spools are arranged in the following manner: the two valve cores respectively extend into the valve cavity 14 from the left side and the right side of the valve body 10, correspondingly, the valve cavity 14 is formed into two left and right opposite cavity walls, the two liquid inlet 15 are respectively formed on the two cavity walls and are respectively circumferentially arranged around the corresponding valve cores, and the two valve cores respectively control the on-off of the two groups of liquid inlet 15 and the metering port 16 on the two cavity walls through rotation. In this embodiment, there may be two kinds of correspondence between two valve spools and two sets of control of the liquid inlet 15: one is to make the valve core extending into the valve cavity 14 from the left side be used for controlling the on-off of a group of liquid inlet 15 and metering outlet 16 on the right cavity wall, and make the valve core extending into the valve cavity 14 from the right side be used for controlling the on-off of a group of liquid inlet 15 and metering outlet 16 on the left cavity wall; the other is to make the valve core extending into the valve cavity 14 from the left side be used for controlling the on-off of a group of liquid inlet 15 and metering outlet 16 on the left cavity wall, and make the valve core extending into the valve cavity 14 from the right side be used for controlling the on-off of a group of liquid inlet 15 and metering outlet 16 on the right cavity wall (the situation is shown in fig. 1). In this embodiment, the two spools are coaxially disposed (of course, the two spools may be different).
The valve core can control the on-off of the two sets of liquid inlet 15 and the liquid collecting and delivering port 17 in various ways, for example, the part of the valve core extending into the valve cavity 14 only allows one liquid inlet 15 to be communicated with the valve cavity 14 in a blocking way, so that oil enters the valve cavity 14 through the unblocked liquid inlet 15 and then enters the liquid collecting and delivering port 17.
In a preferred embodiment of the invention, the passages provided in the valve core are utilized such that one inlet 15 of each set of inlet passages communicates with the metering port 16, and the oil passing through the remaining inlet 15 enters the valve chamber 14 and is collected by the collection and delivery passages and enters the collection and delivery line. Specifically, a portion of the valve core located in the valve cavity 14 is formed with a liquid guide channel 23, and two ends of the liquid guide channel 23 are respectively a butt joint end 231 and a gating end 232; the abutting ends 231 of the two liquid guide channels 23 are respectively abutted with the metering port 16, and the communicating ends 232 of the two liquid guide channels 23 are used for selectively abutting with the liquid inlet 15 to communicate. Thus, when it is necessary to meter the flow rate of the oil passing through a certain inlet 15, the valve core is rotated to enable the gate end 232 of the liquid guide channel 23 to be in butt joint with the inlet 15, and the butt joint end 231 is in butt joint with the metering port 16, so that the inlet 15 is in conduction with the metering port 16, and the oil passing through the rest of the inlets 15 enters the valve cavity 14, is collected by the collecting and delivering port 17 and then enters the collecting and delivering pipeline.
It should be understood that: in the process of valve core rotation, the abutting end 231 and the metering port 16 are required to be always in an abutting state, so that the purpose that the abutting end 231 and the metering port 16 are required to be always in an abutting state can be achieved, the valve core at the abutting end 231 is arranged to form a plug bush, the abutting end 231 is formed at the end part of the plug bush, the axis of the plug bush is coaxial with the rotation axis of the valve core, the plug bush is inserted into the metering port 16, and therefore when the valve core rotates, the plug bush rotates around the axis of the plug bush and cannot integrally and linearly move relative to the metering port 16, and accordingly the abutting end 231 and the metering port 16 are always in the abutting state. Of course, there are various structures and modes for always keeping the docking end 231 and the metering port 16 in the docked state, and the details are not described here.
For convenience in manufacturing, assembling and maintenance, the valve body 10 is provided in a split structure, specifically, as shown in fig. 1 and 6, the valve body 10 of the present embodiment includes a left valve body 11, a right valve body 12 and a middle valve body 13, the left valve body 11, the right valve body 12 are detachably mounted on both sides of the middle valve body 13, and the left valve body 11, the middle valve body 13 and the right valve body 12 jointly enclose a valve chamber 14. Wherein, two groups of liquid inlets 15 are respectively arranged on the left valve body 11 and the right valve body 12; the two valve cores are a left valve core 21 and a right valve core 22 respectively, the left valve core 21 penetrates through the left valve body 11 and then stretches into the valve cavity 14, the right valve core 22 penetrates through the right valve body 12 and stretches into the valve cavity 14, the left valve core 21 is used for controlling the on-off of the liquid inlet 15 and the metering port 16 which are formed in the left valve body 11, and the right valve body 12 is used for controlling the on-off of the liquid inlet 15 and the metering port 16 which are formed in the right valve body 12. Preferably, the metering port 16 extends into the valve chamber 14 and forms two oppositely facing ports; the left butt end of the left liquid guide channel on the left valve core 21 is in butt joint with the port of the metering port 16 facing the left valve body 11, and the right butt end of the right liquid guide channel on the right valve core 22 is in butt joint with the port of the metering port 16 facing the right valve body 12.
In order to facilitate installation of an external power mechanism (e.g., a driving motor) for driving the valve cartridge to rotate and simultaneously to increase the rigidity of the valve cartridge (the valve cartridge may decrease its own rigidity by extending out of the valve body by a certain length), in a preferred embodiment of the present invention, as shown in fig. 1 and 2, and in conjunction with fig. 6 and 7, flanges 30 are installed on the outer sides of both the left valve body 11 and the right valve body 12, and two flanges 30 are respectively penetrated at the portion of the left valve cartridge 21 located outside the left valve body 11 and the portion of the right valve cartridge 22 located outside the right valve body 12. In this way, the two external power mechanisms can be respectively fixed on the two flanges 30 through the fasteners, the valve core penetrates through the flanges 30 to be connected with the output shaft of the external power mechanism, and the external power mechanism provides torsion to drive the valve core to rotate, so that the gating end 232 of the liquid guide channel 23 is selectively butted with the liquid inlet 15. In this embodiment, a shaft shoulder is formed on a section of the spool penetrating the flange 30; a thrust bearing 33 is arranged at the shaft shoulder; the thrust bearing 33 is pushed by the head of the top cover 32 sleeved on the valve core so as to tightly press the thrust bearing 33 against the shaft shoulder, and an adjusting gap is formed between the tail of the top cover 32 and the flange 30.
The invention has the advantages that the flange plate 30 is erected outside the valve body 10: on the one hand, the external power mechanism can be directly arranged on the valve body 10 through the flange plate 30, so that the external power mechanism is convenient to rapidly assemble on the multi-way valve; the valve core penetrates through the flange plate and is supported by the thrust bearing, so that the rigidity of the valve core is improved; in still another aspect, the thrust bearing with support and load is arranged outside the valve body, thereby reducing the number of bearings arranged in the valve body, ensuring that no complex moving structure exists in the valve body, being convenient for maintenance and prolonging the running fault-free period.
Preferably, a transition disc 31 is also mounted to the flange 30 by fasteners, and an external power mechanism is mounted to the transition disc 31 by fasteners.
In order to ensure that the abutting end 231 of the liquid guide channel 23 and the port of the metering port 16 always maintain an abutting state when the valve core rotates and minimize the resistance of the metering port 16 to the rotation of the valve core, in a preferred embodiment of the present invention, sliding bearings 40 are respectively installed in the two ports of the metering port 16, the abutting end 231 of the liquid guide channel 23 extends into the sliding bearings 40, and a sealing ring is disposed between the sliding bearings 40 and the abutting end 231 to prevent oil from flowing out from between the abutting end 231 and the port. Thus, the sealing ring effectively prevents oil leakage at the butt joint, and the sliding bearing 40 can keep the valve core rotating more smoothly.
The multi-way valve provided by the invention needs to be sealed at a plurality of positions:
1. sealing is required at the position where the valve core penetrates the valve body 10.
Specifically, as shown in fig. 1 and 4, the left valve body 11 and the right valve body 12 are respectively provided with a left mounting hole and a right mounting hole, the left valve core 21 penetrates the left mounting hole to extend into the valve cavity 14, and the right valve core 22 penetrates the right mounting hole to extend into the valve cavity 14; a sealing component is arranged between the left valve core 21 and the left mounting hole and between the right valve core 22 and the right mounting hole; the seal assembly includes an outer sleeve 52, an inner sleeve 51, and a sealing packing 53; the first end of the outer sleeve 52 is provided with a baffle ring, and the first end of the inner sleeve 51 extends into the outer sleeve 52 from the second end of the outer sleeve 52; a sealing packing 53 is disposed between the stop ring and the second end of the inner sleeve 51. The assembly mode of the sealing component is as follows: annular gaps are formed between the two mounting holes (left mounting hole and right mounting hole) corresponding to the two valve cores (left valve core 21 and right valve core 22), the first ends of the outer sleeve 52 and the inner sleeve 51 in the sealing assembly extend into the annular gaps from the outside of the valve body 10, the outer wall of the outer sleeve 52 is attached to the hole wall of the mounting hole, the inner hole wall of the inner sleeve 51 and the sealing filler 53 cover the valve cores, and therefore sealing between the valve cores and the valve body 10 is achieved. In this embodiment, the seal assembly is a fabricated assembly, and the seal assembly can complete its entire assembly outside the valve body 10, so when the seal packing in the seal assembly in a use state is about to fail, the seal assembly can be replaced entirely, thereby saving replacement time, improving replacement efficiency and reducing maintenance cost of the device.
2. The junction of the gate end 232 of the diversion channel and the liquid inlet 15 needs to be sealed.
Specifically, as shown in fig. 1 and fig. 5, a valve seat ring 61 is respectively disposed at the left gate end of the left liquid guide channel and the right gate end of the right liquid guide channel, an annular first step surface is formed on the inner wall of the liquid guide channel 23 inside the valve seat ring 61, an inner hexagonal nut 64 is disposed between the valve seat ring 61 and the first step surface, an outer thread is disposed on the outer periphery of the valve seat ring, the inner hexagonal nut 64 includes two cylindrical parts with unequal outer diameters, one end with a larger outer diameter abuts against the first step surface, one end with a smaller outer diameter faces the valve seat ring 61, a spring 63 deforming under the action of the inner hexagonal nut 64 is sleeved on the cylindrical part with a smaller outer diameter to generate an axial force, a thrust ring 62 pushing the valve seat ring 61 is disposed between the spring 63 and the valve seat ring 61 under the action of the spring 63, the spring 63 can be a waveform or a disc spring 63, and the thrust ring 62 and the spring 63 are disposed so that the valve seat ring 61 keeps a tight fitting with the liquid inlet 15 all the time to achieve a combined seal. Meanwhile, a sealing ring is arranged between the valve seat ring 61 and the liquid guide channel 23 and is used for sealing the valve seat ring 61 and the liquid guide channel 23.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.
Claims (9)
1. A multiway valve, comprising:
a valve body having a metering port, a collection port, and a plurality of liquid inlets; the liquid inlet and the liquid collecting and conveying port are communicated to a valve cavity in the valve body;
two valve cores which extend into the valve cavity; wherein:
the liquid inlets are divided into two groups; each group of liquid inlet is circumferentially arranged, and the two valve cores are respectively correspondingly used for controlling the two groups of liquid inlet, so that any one of the liquid inlet can be selectively communicated with the metering port through the rotation of the corresponding valve core.
2. The multiway valve of claim 1, wherein the valve chamber has two opposing chamber walls; the two groups of liquid inlets respectively penetrate through the two cavity walls correspondingly; and each group of liquid inlet is respectively arranged around the circumference of the corresponding valve core.
3. The multiway valve of claim 2, wherein the valve core is provided with a liquid guide channel at the part in the valve cavity, and two ends of the liquid guide channel are respectively a butt joint end and a gating end; the butt joint ends of the two liquid guide channels are respectively in butt joint with the metering port, and the gating ends of the two liquid guide channels are respectively used for being selectively in butt joint with the two groups of liquid inlet for communication.
4. A multi-way valve as claimed in claim 3 wherein said metering port extends into said valve chamber and forms two oppositely facing ports; the two butt joint ends of the two liquid guide channels are respectively in butt joint with the two ports.
5. The multiway valve of claim 2, wherein the valve body comprises a middle valve body, a left valve body and a right valve body which are positioned at two sides of the middle valve body to respectively butt-joint with the middle valve body to enclose the valve cavity, and two groups of liquid inlet are respectively arranged on the left valve body and the right valve body; the two valve cores extend into the valve cavity from the left valve body and the right valve body respectively; the metering port and the collecting and conveying port are positioned on the middle valve body.
6. A multiway valve according to claim 5, wherein,
the two valve cores are respectively a left valve core and a right valve core;
the left valve body and the right valve body are respectively provided with a left mounting hole and a right mounting hole correspondingly, the left valve core penetrates through the left mounting hole to extend into the valve cavity, and the right valve core penetrates through the right mounting hole to extend into the valve cavity;
a sealing component is arranged between the left valve core and the left mounting hole and between the right valve core and the right mounting hole;
the sealing component comprises an outer sleeve, an inner sleeve and sealing filler; the first end of the outer sleeve is provided with a baffle ring, and the first end of the inner sleeve stretches into the outer sleeve from the second end of the outer sleeve; the sealing filler is arranged between the baffle ring and the second end of the inner sleeve, and when the first ends of the inner sleeves of the two sealing assemblies respectively extend into the space between the left valve core and the left mounting hole and the space between the right valve core and the right mounting hole to finish assembly, the sealing filler of the two sealing assemblies respectively covers the left valve core and the right valve core.
7. The multiway valve of claim 2, wherein a flange is mounted on the outside of the valve body; the part of the valve core, which is positioned outside the valve body, penetrates through the flange plate; an external power mechanism is assembled on the flange plate and used for driving the valve core to rotate.
8. The multiway valve of claim 7, wherein a shoulder is formed on a section of the spool that extends through the flange; a thrust bearing is arranged at the shaft shoulder; the thrust bearing is pushed by the head of the top cover sleeved on the valve core so as to be tightly abutted against the shaft shoulder, and an adjusting gap is formed between the tail of the top cover and the flange plate.
9. The multiway valve of claim 4, wherein sliding bearings are respectively installed in two ports of the metering port, butt ends of liquid guide channels of the two valve cores respectively extend into the sliding bearings, and sealing rings are arranged between the sliding bearings and the butt ends.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179958.XA CN108150677B (en) | 2018-03-05 | 2018-03-05 | Multi-way valve |
| PCT/CN2018/078907 WO2019169650A1 (en) | 2018-03-05 | 2018-03-14 | Multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810179958.XA CN108150677B (en) | 2018-03-05 | 2018-03-05 | Multi-way valve |
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| CN108150677A CN108150677A (en) | 2018-06-12 |
| CN108150677B true CN108150677B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810179958.XA Active CN108150677B (en) | 2018-03-05 | 2018-03-05 | Multi-way valve |
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| Country | Link |
|---|---|
| CN (1) | CN108150677B (en) |
| WO (1) | WO2019169650A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373012B (en) * | 2018-12-03 | 2023-09-15 | 四川理工学院 | Micro-flow equal-flow diverter valve |
| CN111609178B (en) * | 2020-06-23 | 2024-06-04 | 成都英派尔新能源科技有限公司 | Transverse layout double-valve-core multi-way valve |
| DE102020131446A1 (en) | 2020-11-27 | 2022-06-02 | Otto Egelhof Gmbh & Co. Kg | Multi-way valve for controlling a refrigerant circuit |
| CN118066329A (en) * | 2022-11-22 | 2024-05-24 | 中国石油工程建设有限公司 | Multi-way valve and oil well metering device |
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- 2018-03-14 WO PCT/CN2018/078907 patent/WO2019169650A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019169650A1 (en) | 2019-09-12 |
| CN108150677A (en) | 2018-06-12 |
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