CN112361030A - Cold and hot switching dynamic balance electric regulating valve - Google Patents
Cold and hot switching dynamic balance electric regulating valve Download PDFInfo
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- CN112361030A CN112361030A CN202011167475.1A CN202011167475A CN112361030A CN 112361030 A CN112361030 A CN 112361030A CN 202011167475 A CN202011167475 A CN 202011167475A CN 112361030 A CN112361030 A CN 112361030A
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- 230000001105 regulatory effect Effects 0.000 title claims description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 194
- 238000007789 sealing Methods 0.000 claims description 53
- 230000007704 transition Effects 0.000 claims description 27
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
- F16K3/262—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member with a transverse bore in the valve member
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The valve body unit comprises a valve body, a first ball valve core and a second ball valve core which are arranged in the valve body, the valve body is provided with a first valve cavity used for rotatably installing the first ball valve core and a second valve cavity used for rotatably installing the second ball valve core, the first valve cavity is communicated with the second valve cavity, a cold water inlet and a hot water inlet which are communicated with the first valve cavity and a cold water outlet and a hot water outlet which are communicated with the second valve cavity are arranged on the valve body, the valve body unit further comprises a pressure difference control assembly, a third valve cavity used for installing the pressure difference control assembly is further arranged in the valve body, the third valve cavity is communicated with the second valve cavity, and an output port communicated with the third valve cavity and an input port communicated with the first valve cavity are arranged on the valve body.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a cold-hot switching dynamic balance electric regulating valve.
Background
In a building air conditioning system, a central air conditioning water system is more and more widely applied because of the advantages of flexible arrangement, good independent adjustability and high comfort level.
In a central air-conditioning water system, water path systems are connected at the inlet and outlet of terminal products such as fan coils, control valves are often arranged on pipelines close to the inlet and outlet of each fan coil, and dynamic balance of control flow in the water path systems plays a key role in refrigeration and heating effects,
in the prior art, a plurality of balancers are usually arranged on a pipeline of a waterway system and used for controlling the flow condition entering a fan coil, and if the flow condition changes, the flow condition is adjusted through an actuator on a control valve, so that the pipeline of the whole waterway system is relatively complex, the flow control precision is relatively complex, the construction is inconvenient, and the later maintenance cost is relatively high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the cold-hot switching dynamic balance electric regulating valve which is high in integration degree, convenient to install and more convenient in flow control precision.
The above object of the present invention is achieved by the following technical solutions:
a cold and hot switching dynamic balance electric regulating valve is characterized by comprising a valve body unit and an actuator, wherein the valve body unit comprises a valve body, a first ball valve core and a second ball valve core which are arranged in the valve body,
the valve body is internally provided with a first valve cavity for rotatably mounting the first ball valve core and a second valve cavity for rotatably mounting the second ball valve core, the first valve cavity is communicated with the second valve cavity, the valve body is provided with a cold water inlet and a hot water inlet which are communicated with the first valve cavity and a cold water outlet and a hot water outlet which are communicated with the second valve cavity,
the valve body unit also comprises a pressure difference control assembly, a third valve cavity used for installing the pressure difference control assembly is arranged in the valve body and is communicated with the first valve cavity, an output port communicated with the third valve cavity and an input port communicated with the second valve cavity are arranged on the valve body,
the actuator is arranged on the valve body and used for controlling the rotation of the first ball valve core and the second ball valve core, the first ball valve core and the second ball valve core are both provided with flow channels, when in a heat supply state, two ends of the flow channel of the first ball valve core are respectively communicated with the hot water inlet and the third valve cavity, two ends of the flow channel of the second ball valve core are respectively communicated with the hot water outlet and the input port, and the cold water inlet and the cold water outlet are both blocked; when the refrigeration device is in a refrigeration state, two ends of a flow passage of the first ball valve core are respectively communicated with the cold water inlet and the third valve cavity, two ends of a flow passage of the second ball valve core are respectively communicated with the cold water outlet and the input port, and the hot water inlet and the hot water outlet are blocked.
By adopting the technical scheme, when in use, the water way system is arranged in a water way system of a central air-conditioning water system, the cold water inlet, the cold water outlet, the hot water inlet and the hot water outlet are respectively and correspondingly and hermetically connected with the cold water input pipe, the cold water output pipe, the hot water input pipe and the hot water output pipe in the water way system one by one, the output port and the input port on the valve body are respectively and hermetically connected with the outlet and the inlet of the fan coil pipe, the actuator adopts an angular travel actuator, namely, the conversion of a heating state and a refrigerating state and the control of flow under the two states are realized through the rotation of the first ball valve core and the second ball valve core by the actuator, meanwhile, the differential pressure control assembly is directly integrated on the valve body, the flow differential pressure when water passes through the valve body is realized, the flow balance under different states is realized, and the water way system in the, the installation of the balancer is reduced, the cost is reduced, the control precision is also improved, and the stability of the waterway system is good.
The present invention in a preferred example may be further configured to: the valve body is provided with a connecting channel, two ends of the connecting channel are respectively communicated with the first valve cavity and the second valve cavity, the central line of the first valve cavity and the second valve cavity is positioned on the same straight line with the central line of the connecting channel, and the connecting channel is internally and rotatably provided with a connecting piece used for connecting the first ball valve and the second ball valve.
Through adopting above-mentioned technical scheme, realize being connected between first ball valve core and the second ball valve core through the setting of connecting piece, when first ball valve core of executor control or second ball valve core often, can drive synchronous rotation with two ball valve cores through the connecting piece, control is convenient and control accuracy is higher.
The present invention in a preferred example may be further configured to: the valve body is also provided with an execution channel, two ends of the execution channel are respectively communicated with the first valve cavity and the outside of the valve body, an execution rod sealed on the inner wall of the execution channel is rotatably arranged in the execution channel, one end of the execution rod close to the first valve cavity is connected with the first valve core, and the other end of the execution rod extends out of the outside of the valve body and is connected with the actuator.
By adopting the technical scheme, the actuator controls the actuating rod to rotate to drive the first ball valve core and the second ball valve core to synchronously rotate, so that the first ball valve core and the second ball valve core can be synchronously controlled, and the control precision of the actuator on the flow in the waterway system is improved.
The present invention in a preferred example may be further configured to: the actuating rod comprises a connecting rod and a sealing element annularly arranged outside the connecting rod, and the outer side face of the sealing element, which is far away from the connecting rod, is elastically and hermetically abutted against the inner wall of the actuating channel.
Through adopting above-mentioned technical scheme, establish the sealing member at the connecting rod outer loop for play sealed effect between first valve pocket and the valve body outside.
The present invention in a preferred example may be further configured to: the first ball valve core and the second ball valve core both comprise spheres, the spheres are provided with a first hole and a second hole which are communicated with each other in the spheres, the first hole and the second hole are communicated to form the flow channel, the central lines of the first hole and the second hole are mutually vertical, the central lines of the first hole and the second hole of the first ball valve core are both positioned on a plane formed by two central lines of the cold water inlet and the hot water inlet, and the central lines of the first hole and the second hole of the second ball valve core are both positioned on a plane formed by two central lines of the hot water outlet and the cold water inlet.
Through adopting above-mentioned technical scheme, set up the runner in first ball valve core and the second ball valve core into the two-way case that is the right angle shape runner for ball valve core conveniently controls the conversion of conversion heat supply state and refrigeration state.
The present invention in a preferred example may be further configured to: the ball body is provided with cutting planes which are parallel to the planes of the central lines of the first hole and the second hole and are positioned on the two sides of the flow passage respectively, and the two cutting planes are respectively and vertically provided with connecting convex columns of which the central lines pass through the ball center of the ball body.
Through adopting above-mentioned technical scheme, set up two tangent planes on the spheroid to set up the connecting projection on two tangent planes, can shorten the length of first ball valve core and second ball valve core, make whole valve body compacter, also reduced material cost.
The present invention in a preferred example may be further configured to: the valve body comprises a first cylindrical valve body part, a second cylindrical valve body part, a third cylindrical valve body part and a valve body connecting part for connecting the first cylindrical valve body part and the second cylindrical valve body part, the first cylindrical valve body part is provided with a first valve cavity with a cylindrical section, the second cylindrical valve body part is provided with a second valve cavity with a cylindrical section, and the connecting channel is arranged in the valve body connecting part, and two ends of the connecting channel are respectively communicated with the first valve cavity and the second valve cavity; the central lines of the first valve cavity and the second valve cavity are parallel to each other and are perpendicular to the central line of the connecting passage; one end of the third cylindrical valve body part is connected with the first cylindrical valve body part into a whole, a third valve cavity with a cylindrical section is arranged in the third cylindrical valve body part, the center line of the third valve cavity and the center line of the connecting channel form an angle, and the first valve cavity is communicated with the third valve cavity through a transition channel.
Through adopting above-mentioned technical scheme, the valve body is through above-mentioned structural design for whole valve body inner structure is compacter, reduces the product volume.
The present invention in a preferred example may be further configured to: the inner wall of the first valve cavity is in clearance fit with the first ball valve core, the cold water inlet and the hot water inlet are respectively arranged at two ends of the first valve cavity in the axial direction, the edge of each orifice of the cold water inlet and the hot water inlet is provided with a sealing assembly, the output port is arranged at one side of the third cylindrical valve body part far away from the first cylindrical valve body part, the center line of the output port is vertical to the axial direction of the first valve cavity, and the center lines of the cold water inlet, the hot water inlet and the output port are coplanar with the center line of the first ball valve core flow channel; the hot water outlet and the cold water outlet are respectively arranged at two ends of the second valve cavity in the axis direction, the respective orifice edges of the cold water outlet and the hot water outlet are provided with sealing components, the input port is arranged at one side of the second cylindrical valve body part, and the central lines of the cold water outlet, the hot water outlet and the input port are coplanar with the central line of the flow passage of the second ball valve core.
The present invention in a preferred example may be further configured to: the pressure differential control subassembly sets up in the internal sliding spool subassembly of governing valve including the regulating valve body and the slip that are fixed in the third valve intracavity, the internal both sides that just are located the sliding spool subassembly of governing valve form the flow chamber and the pressure regulating chamber that do not communicate, the regulating valve body is last and be located the flow intracavity be provided with the water inlet of transition passageway intercommunication and with the delivery port of delivery outlet intercommunication, be provided with the pressure guide passageway that is used for intercommunication transition passageway and pressure regulating chamber on the third cylindricality valve body portion, the last pressure regulating spring that just is located of regulating valve body is provided with of flow intracavity, pressure regulating spring has the trend that promotes the sliding spool subassembly and remove to the pressure regulating chamber.
By adopting the technical scheme, when water flows through the transition channel, the water flows sequentially enter the pressure regulating cavity through the pressure guide channel to form pressure on the sliding valve core assembly, when the water pressure in the transition channel is increased, the water inlet flow speed is increased, and the water pressure in the pressure regulating cavity is increased, so that the sliding valve core assembly moves towards the flow cavity, and meanwhile, the pressure regulating spring is compressed until the stress on the two sides of the sliding valve core assembly is the same, the water outlet is reduced, and the cross section of the water flow passing through the water outlet is reduced; when the same water pressure in the transition passage is reduced, the inflow flow rate is reduced, and the water pressure in the pressure regulating cavity is reduced, so that the sliding valve core assembly moves towards the pressure regulating cavity, and meanwhile, the pressure regulating spring extends until the stress on the two sides of the sliding valve core assembly is the same in size, the cross section of water flow passing through the water outlet is reduced by increasing the water outlet, and the change of the flow passing through the water outlet is reduced.
The present invention in a preferred example may be further configured to: the regulating valve body comprises an annular sleeve, a water inlet seat and a pressure regulating seat, wherein the water inlet seat and the pressure regulating seat are arranged at two ends of the sleeve, the water inlet seat is provided with a water inlet, the sleeve is provided with a water outlet, a third annular connecting part which is abutted to the pressure regulating seat is extended on a third end cover, one side of the pressure regulating seat, which is positioned outside the third annular connecting part, is provided with a pressure guide hole, and the pressure guide hole is communicated between a pressure guide channel and a pressure regulating cavity.
Through adopting above-mentioned technical scheme, the third annular connecting portion that the third end was covered and the butt between the pressure regulating seat promote the stability of slip case subassembly at the installation of third lumen, and rivers loop through the pressure pipe and lead the pressure hole simultaneously and get into the pressure regulating chamber, form pressure to the slip case subassembly, and the pressure regulating seat is injectd the gliding extreme position of slip case subassembly to the pressure regulating chamber direction, avoids the slip case subassembly to break away from the sleeve, promotes the stability of slip case subassembly installation.
In summary, the invention includes at least one of the following beneficial technical effects: the executor controls the rotation of first ball case and second ball case, can realize automated control and regulation between refrigerating system and the heating system to through direct integrated setting pressure differential control subassembly on the valve body, realized the pressure differential of real-time regulation flow, no matter all make flow control more convenient in heating system or refrigerating system, stability is higher.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a valve body unit of the present invention;
FIG. 3 is a schematic partial cross-sectional view of a valve body unit of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional configuration of the valve body of the present invention;
FIG. 5 is a schematic structural view from another perspective of the valve body unit of the present invention;
FIG. 6 is a schematic view of the construction of an actuator rod according to the present invention;
FIG. 7 is a schematic illustration of the construction of the first and second ball valve spools of the present invention;
FIG. 8 is a schematic view of the construction of the connector of the present invention;
FIG. 9 is a schematic view of a third cylindrical valve body portion and differential pressure control assembly of the present invention;
FIG. 10 is a schematic cross-sectional view of a differential pressure control assembly of the present invention;
FIG. 11 is a schematic view of the installation of the present invention in a central air conditioning water system;
FIG. 12 is a schematic hot water flow diagram of the heating mode of the present invention;
fig. 13 is a schematic diagram of the cold water flow in the cooling mode of the present invention.
In the figure: 1. a valve body unit; 10. a valve body; 100. a first cylindrical valve body portion; 101. a first barrel portion; 102. a first end cap; 103. a first annular connecting portion; 110. a first valve chamber; 200. a second cylindrical valve body portion; 201. a second barrel portion; 202. a second end cap; 203. a second annular connecting portion; 210. a second valve cavity; 300. a third cylindrical valve body portion; 301. a third barrel portion; 302. a third end cap; 310. a third valve cavity; 3101. an annular cavity; 303. a third annular connecting portion; 304. the plug hole is communicated; 305. a pressure guide channel; 320. a sliding spool assembly; 321. a slide plate; 3211. a baffle ring; 3212. a limiting ring; 322. a sliding sleeve; 323. sealing the membrane group; 3231. a convex ring; 324. a flow blocking ring; 330. a sleeve; 331. a water inlet; 332. a water outlet; 333. a ring groove; 340. a water inlet seat; 3401. a limiting column; 341. a pressure regulating seat; 3411. pressure guide holes; 3412. a limiting rod; 342. a pressure regulating spring; 350. a differential pressure control assembly; 400. a valve body connecting portion; 410. a connecting channel; 401. a connecting member; 402. connecting columns; 403. an annular retainer ring; 404. a first seal ring; 4021. a second limiting block; 4022. a third limiting block; 4023. a limiting bulge; 500. a transition connection; 510. a transition passage; 600. an execution block; 610. an execution channel; 601. an actuating lever; 602. a connecting rod; 6021. an actuator connection section; 6022. a sealing section; 6023. a valve core connecting section; 60231. a first stopper; 603. a seal member; 6031. a sealing sleeve; 60311. a limiting part; 6032. an upper seal ring; 6033. a spiral seal ring; 6034. a lower seal ring; 20. a first ball valve spool; 21. a sphere; 211. a first hole; 212. a second hole; 213. cutting a plane; 214. connecting the convex columns; 2141. a linear groove; 2142. a limiting groove; 30. a second ball valve spool; 40. a hot water inlet; 50. a cold water inlet; 60. a hot water outlet; 70. sealing the cold water outlet; 80. an input port; 90. an output port; 1000. an actuator; 2. a fan coil; 3. a cold water input pipe; 4. a cold water output pipe; 5. a hot water outlet pipe; 6. a hot water input pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, a cold-hot switching dynamic balance electric control valve includes a valve body unit 1 and an actuator 1000, the valve body unit 1 includes a valve body 10 and a first ball spool 20 and a second ball spool 30 disposed in the valve body 10,
with reference to fig. 2 and 4, the valve body 10 includes a first cylindrical valve body portion 100, a second cylindrical valve body portion 200, a third cylindrical valve body portion 300, and a valve body connecting portion 400 and a transition connecting portion 500 both of which are cylindrical structures, the first cylindrical valve body portion 100 and the second cylindrical valve body portion 200 are disposed up and down and are disposed in parallel in the two axial directions, the valve body connecting portion 400 is disposed between the first cylindrical valve body portion 100 and the second cylindrical valve body portion 200, and both ends of the upper and lower ends of the valve body connecting portion are respectively connected with the first cylindrical valve body portion 100 and the second cylindrical valve body portion 200 into a whole, the first cylindrical valve body portion 100 is provided with a first valve cavity 110 having a cylindrical cross section, the second cylindrical valve body portion 200 is provided with a second valve cavity 210 having a cylindrical cross section, the valve body connecting portion 400 is provided with a connecting passage 410 which is vertically and vertically through, and both ends of the connecting passage; the third cylindrical valve body 300 is obliquely arranged on one side of the first cylindrical valve body 100, the upper end of the third cylindrical valve body 300 is higher than the top end of the first cylindrical valve body 100, the third cylindrical valve body 300 is provided with a third valve cavity 310 with a cylindrical cross section, the transition connecting part 500 is arranged between the first cylindrical valve body 100 and the third cylindrical valve body 300, two ends of the transition connecting part 500 are respectively connected with the first cylindrical valve body 100 and the third cylindrical valve body 300 into a whole, the transition connecting part 500 is perpendicular to the valve body connecting part 400, a transition channel 510 which is transversely communicated is arranged on the transition connecting part 500, and two ends of the transition channel 510 are respectively communicated with the first valve cavity 110 and the third valve cavity 310.
Referring to fig. 4 and 5, the first cylindrical valve body 100 includes a first cylinder 101 with an opening at one end and a first end cap 102 covering the opening, an inner cavity of the first cylinder 101 is a first valve cavity 110, a first annular connecting portion 103 is convexly disposed on a side surface of the first end cap 102 close to the first cylinder 101, the first annular connecting portion 103 is inserted into the opening of the first cylinder 101 and is in threaded sealing connection with an inner wall of the first cylinder 101, a lateral through transverse hole is disposed on a side surface of the first end cap 102 away from the first cylinder 101, the transverse hole is a hot water inlet 40, a first opening with a diameter smaller than that of the first cylinder 101 is disposed on an end of the first cylinder 101 away from the opening, and the first opening is a cold water inlet 50; the central lines of the hot water inlet 40 and the cold water inlet 50 are coaxial with the central line of the first valve chamber 110, and the central line of the transition passage 510 and the central line of the first valve chamber 110 are both located on the same horizontal plane and are perpendicular to each other.
Referring to fig. 3 and 4, an actuating block 600 is integrally disposed on the top of the first cylindrical valve body 100, the actuating block 600 is provided with an actuating channel 610 vertically penetrating through the sidewall of the first cylindrical valve body 100, the lower end of the actuating channel 610 is communicated with the first valve chamber 110, the upper end of the actuating channel 610 penetrates through the top surface of the actuating block 600 to be communicated with the outside of the valve body 10, and an actuating rod 601 sealed with the inner wall of the actuating channel 610 is rotatably disposed in the actuating channel 610.
With reference to fig. 6, the actuating rod 601 includes a connecting rod 602 and a sealing member 603 annularly disposed outside the connecting rod 602, the connecting rod 602 is sequentially provided with an actuator connecting section 6021, a sealing section 6022 and a valve core connecting section 6023 from top to bottom, outer diameters of the actuator connecting section 6021, the sealing section 6022 and the valve core connecting section 6023 are sequentially increased, the top of the actuating block 600 is fixedly connected with an actuator mounting plate by a screw, the actuator connecting section 6021 extends out of the top of the actuating block 600 and the actuator mounting plate for connecting with the actuator 1000 (refer to fig. 1), the actuator mounting plate axially limits the actuating rod 601, the actuator 1000 is mounted on the actuator mounting plate, the sealing section 6022 is correspondingly located in the actuating channel 610, and a polygonal limiting surface is arranged on part of the outer peripheral surface of the sealing section 6022, which is a hexagonal limiting surface in this embodiment, the valve core connecting section 6023 extends into the first valve cavity 110, and the bottom surface is provided with a first limiting block 60231 in a downward protruding manner.
The sealing element 603 comprises a sealing sleeve 6031, an upper sealing ring 6032, a spiral sealing ring 6033 and a lower sealing ring 6034 which are integrally arranged on the outer circular surface of the sealing sleeve 6031, and the upper end and the lower end of the spiral sealing ring 6033 are respectively connected with the upper sealing ring 6032 and the lower sealing ring 6034 into a whole; the position of the inner wall of the sealing sleeve 6031 corresponding to the limiting surface on the connecting rod 602 is convexly provided with a limiting part 60311, and the inner wall of the limiting part 60311 is hexagonal, so that the sealing section 6022 and the sealing sleeve 6031 rotate in a circumferential limiting manner.
Referring to fig. 4 and 5, the second cylindrical valve body 200 includes a second cylindrical body 201 with an opening at one end and a second end cap 202 covering the opening, the inner cavity of the second cylindrical body 201 is a second valve chamber 210, a second annular connecting portion 203 is convexly disposed on a side surface of the second end cap 202 close to the second cylindrical body 201, the second annular connecting portion 203 is inserted into the opening of the second cylindrical body 201 and is in threaded sealing connection with the inner wall of the second cylindrical body 201, a lateral through transverse hole is disposed on a side surface of the second end cap 202 away from the second cylindrical body 201, the transverse hole is a hot water outlet 60, a second opening with a diameter smaller than that of the second cylindrical body 201 is disposed on one end of the second cylindrical body 201 away from the opening, the second opening is a cold water outlet 70, and the center lines of the hot water outlet 60 and the cold water outlet 70 are coaxial with the center line of the second valve chamber 210; the outer side wall of the second cylindrical valve body part 200 is provided with an input port 80 communicated with the second valve cavity 210, the center line of the input port 80 and the center line of the second valve cavity 210 are both positioned on the same horizontal plane and are vertical to each other, and the input port 80 is connected with the water inlet end of the fan coil through a pipeline.
Referring to fig. 3 and 4, the first and second ball spools 20 and 30 are respectively installed in the first and second valve chambers 110 and 210 with a clearance fit, which in this embodiment is 0.007mm to 0.015 mm.
Referring to fig. 7, each of the first and second ball valve spools 20 and 30 includes a ball 21, the ball 21 is provided with a first hole 211 and a second hole 212 communicated with each other inside the ball 21, the first hole 211 and the second hole 212 are communicated to form a flow passage, center lines of the first hole 211 and the second hole 212 are perpendicular to each other, center lines of the first hole 211 and the second hole 212 of the first ball valve spool 20 are located on a plane formed by center lines of the cold water inlet 50 and the hot water inlet 40, and center lines of the first hole 211 and the second hole 212 of the second ball valve spool 30 are located on a plane formed by center lines of the hot water outlet 60 and the cold water outlet 70.
The two tangent planes 213 parallel to the planes of the center lines of the first hole 211 and the second hole 212 are respectively arranged on the two sides of the flow channel on the sphere 21, the two tangent planes 213 are respectively and vertically provided with the connecting convex column 214 of which the center line passes through the center of the sphere 21, the end surface of one end of the connecting convex column 214 far away from the sphere 21 is provided with a linear groove 2141, the center line of the linear groove 2141 passes through the straight line of the center of the sphere 21, and an arc surface which is convex outward is arranged on the end surface of the connecting convex column 214, and the arc surface and the outer surface of the sphere 21 are on the same spherical surface.
Referring to fig. 8, a connecting member 401 for connecting the first ball valve element 20 and the second ball valve element 30 is rotatably disposed in the connecting passage 410, the connecting member 401 includes a cylindrical connecting post 402, an annular retaining ring 403 integrally connected to an outer circumferential surface of the connecting post 402, and a first sealing ring 404 sleeved outside the annular retaining ring 403, a first step end surface facing the first valve cavity 110 is disposed on an inner wall of the connecting passage 410, the annular retaining ring 403 abuts against the first step end surface, an outer side surface of the first sealing ring 404 elastically abuts against an inner wall of the connecting passage 410 to seal, a second limiting block 4021 and a third limiting block 4022 capable of being inserted into and matched with a linear groove 2141 of the connecting boss 214 are disposed on end surfaces of two ends of the connecting post 402, and the second limiting block 4021 and the third limiting block 4022 extend to the first valve cavity 110 and the second valve cavity 210, respectively.
Referring to fig. 3, the first ball valve core 20 and the second ball valve core 30 are respectively installed in the first valve chamber 110 and the second valve chamber 210 in a clearance fit manner, and the respective port edges of the cold water inlet 50, the hot water inlet 40, the cold water outlet 70 and the hot water outlet 60 are provided with sealing components for sealing, and the sealing components are sealing rings.
Referring to fig. 6 to 8, a linear groove 2141 on the connecting boss 214 at the upper end of the first ball valve element 20 is inserted into the first stopper 60231, a linear groove 2141 on the connecting boss 214 at the lower end of the first ball valve element 20 is inserted into the second stopper 4021, a linear groove 2141 on the connecting boss 214 at the upper end of the second ball valve element 30 is inserted into the third stopper 4022, and a linear groove 2141 on the connecting boss 214 at the lower end of the second ball valve element 30 is abutted to the bottom of the inner cavity wall of the second valve cavity 210.
The first limiting block 60231, the second limiting block 4021 and the third limiting block 4022 are respectively provided with a limiting protrusion 4023 protruding from the end surface of the ball body 21, the bottom of the straight groove 2141 on the connecting boss 214 is provided with a limiting groove 2142 corresponding to the limiting protrusion 4023, and by the cooperation of the limiting protrusion 4023 and the limiting groove 2142, the first ball valve element 20 and the second ball valve element 30 are prevented from generating lateral displacement in the horizontal direction, so that the precision of the synchronous rotation of the first ball valve element 20 and the second ball valve element 30 is improved.
Referring to fig. 9, the third cylindrical valve body 300 includes a third cylindrical body 301 having an opening at one end and a third end cap 302 covering the opening, an inner cavity of the third cylindrical body 301 is a third valve cavity 310, a third annular connecting portion 303 is convexly disposed on a side surface of the third end cap 302 close to the third cylindrical body 301, the third annular connecting portion 303 is inserted into the opening of the third cylindrical body 301 and is in threaded sealing connection with an inner wall of the third cylindrical body 301, a through insertion hole 304 is disposed on a side surface of the third end cap 302 away from the third cylindrical body 301, the insertion hole 304 is generally plugged by a plug, but a sensor for detecting pressure or temperature of water flow may also be inserted and sealed, in this embodiment, a pressure sensor is inserted into the insertion hole 304; an output port 90 communicated with the third valve cavity 310 is formed on the outer side wall of the third cylindrical valve body part 300, the center line of the output port 90 is horizontally arranged and is parallel to the center line of the input port 80 (refer to fig. 2), and the output port 90 is connected with the water outlet end of the fan coil through a pipeline.
Referring to fig. 10, the valve body unit 1 further includes a differential pressure control assembly installed in the third valve chamber 310, the differential pressure control assembly includes a sleeve 330 coaxially installed in the third valve chamber 310, a water inlet seat 340 is integrally installed at one end of the sleeve 330 close to the transition passage 510, the water inlet seat 340 is in a cross structure, i.e., a water inlet 331 communicating with the transition passage 510 is formed at one end of the sleeve 330, a pressure regulating seat 341 is fixedly embedded at one end of the sleeve 330 close to the third end cover 302, a third annular connecting portion 303 abutting against the pressure regulating seat 341 is coaxially installed on the third end cover 302 and extends into the third valve chamber 310, pressure guide holes 3411 are circumferentially spaced at one side of the pressure regulating seat 341 outside the third annular connecting portion 303, and a sliding valve core assembly 320 is slidably installed in the sleeve 330 along an axis thereof, the sliding valve core assembly 320 separates the sleeve 330 into a flow chamber and a pressure regulating chamber which are not communicated, the flow cavity is communicated with the water inlet 331, a water outlet 332 is arranged on the sleeve 330 positioned in the flow cavity, the water outlet 332 is communicated with the output port 90, a pressure regulating spring 342 is arranged at one end of the water inlet seat 340 facing the sliding valve core assembly 320, the pressure regulating spring 342 has the tendency of pushing the sliding valve core assembly 320 to move towards the pressure regulating seat 341, a pressure guide channel 305 is arranged in the third cylindrical valve body part 300, one end of the pressure guide channel 305 is communicated with the transition channel 510, and the other end of the pressure guide channel 305 is communicated with the interval between the pressure regulating seat 341 and the third end cover 302;
when water flows through the transition channel 510, the water flows sequentially through the pressure guide channel 305 and the pressure guide hole 3411 to enter the pressure regulating cavity, pressure is formed on the sliding valve core assembly 320, when the water pressure in the transition channel 510 is increased, the inflow flow rate is increased, the water pressure in the pressure regulating cavity is increased, the sliding valve core assembly 320 moves towards the water inlet seat 340, meanwhile, the pressure regulating spring 342 is compressed, the stress sizes on the two sides of the sliding valve core assembly 320 are the same, the cross section of the water flow passing through the water outlet 332 is reduced by reducing the water outlet 332, and the flow passing through the output port 90 is kept stable.
The side wall of the third valve cavity 310 is coaxially provided with an annular cavity 3101 communicated with the water outlets 332, the sleeve 330 is circumferentially provided with a plurality of water outlets 332 at intervals, the annular cavity 3101 is communicated with the output port 90, water flows into the annular cavity 3101 after passing through the water outlets 332 and then is conveyed into the output port 90 from the annular cavity 3101, so that the relative position between the water outlets 332 and the output port 90 does not need to be calibrated when the sleeve 330 is installed, and the stability of water flow is improved.
The sliding valve core assembly 320 comprises a sliding plate 321 coaxially arranged in a sleeve 330 and a flow blocking ring 324 coaxially fixed on the sliding plate 321, the flow blocking ring 324 extends towards the flow cavity, a sealing membrane group 323 is hermetically connected between the sliding plate 321 and the sleeve 330, the sealing membrane group 323 is annular and can be made of rubber, the sealing membrane group 323 comprises an inner ring, an outer ring and a middle part, the inner ring and the outer ring are respectively fixed with the sleeve 330 and the sliding plate 321, and the middle part is in an annular U-shaped structure and is pressed between the flow blocking ring 324 and the sleeve 330; when the sliding plate 321 is pressed to slide towards the flow cavity, the middle part of the sealing membrane group 323 gradually stretches from the U shape to the straight state, so that the sliding resistance to the sliding plate 321 is avoided, and meanwhile, the flow blocking ring 324 changes the actual communication size of the water outlet 332 and the flow cavity, so that the stable control of the water outlet flow is realized.
Wherein, the sliding plate 321 is coaxially extended with a baffle ring 3211 towards the pressure regulating cavity, one end of the baffle ring 3211 far from the sliding plate 321 is coaxially extended with a limit ring 3212, the thickness of the inner ring of the sealing membrane group 323 is greater than the distance between the limit ring 3212 and the sliding plate 321, the inner ring of the sealing membrane group 323 is pressed and embedded between the sliding plate 321 and the limit ring 3212, thereby realizing stable sealing connection between the sliding plate 321 and the sealing membrane group 323, and the sleeve 330 is provided with a circular groove 333, the outer ring of the sealing membrane group 323 and one side facing the flow cavity are extended with a convex ring 3231, the convex ring 3231 and the circular groove 333 are embedded and matched, then the pressure regulating seat 341 is embedded in the sleeve 330, the pressure regulating seat 341 presses the convex ring 3231 to be fixed in the circular groove 333 in a pressing manner, thereby realizing stable sealing connection between the sealing membrane group 323 and the sleeve 330.
Simultaneously at the coaxial stopper 3412 that extends in pressure regulating seat 341, and stopper 3412 extends to sleeve 330 in, slide 321 coaxial cover is established on stopper 3412 in advance, and coaxial fixed with sliding sleeve 322 on slide 321, stopper 3412 pegs graft in sliding sleeve 322, and then limited slide 321's slip direction, stable control water flow, and sliding sleeve 322 and the body coupling between slide 321, avoid causing the rivers of pressure regulating inner chamber to reveal to the flow intracavity when slide 321 slides, guarantee the stability that slide 321 removed.
And a limiting column 3401 coaxial with the sleeve 330 extends towards the sleeve 330 in the water inlet seat 340, one end of the pressure regulating spring 342 is sleeved on the limiting column 3401, and the other end of the pressure regulating spring 342 is sleeved on the outer side of the sliding sleeve 322, so that the stability of the pressure regulating spring 342 in installation in the flow cavity is ensured, namely the thrust of the pressure regulating spring 342 on the sliding valve core assembly 320 is ensured.
The implementation principle of the differential pressure control assembly is as follows: the water outlet flow is Q, the water outlet flow velocity is V, the water outlet cross-sectional area is M, Q = V is M, when the water pressure of the transition passage 510 is increased, namely V is increased, and meanwhile, the pressure of the sliding plate 321 towards one side of the pressure regulating cavity is increased, so that the sliding plate 321 slides towards the direction of the flow cavity and compresses the pressure regulating spring 342 until the pressures at the two sides of the sliding plate 321 are equal, meanwhile, the flow blocking ring 324 reduces the actual communication area of the water outlet 332 and the flow cavity, namely, the water outlet cross-sectional area is reduced, and when the water pressure of the transition passage 510 is reduced, V is reduced, M is increased, and the purpose of reducing the change of the water outlet flow Q.
Referring to fig. 11-13, the application uses the principle: the water-saving control valve is installed in a central air-conditioning water system of a building, a cold water inlet 50, a cold water outlet 70, a hot water inlet 40 and a hot water outlet 60 are respectively in one-to-one corresponding sealing connection with a cold water input pipe 3, a cold water output pipe 4, a hot water input pipe 6 and a hot water output pipe 5 in a water path system, an output port 90 and an input port 80 on a valve body 10 are respectively in sealing connection with an outlet end and an inlet end of a fan coil 2, and the actuator 1000 adopts an angular travel actuator 1000, namely, the first ball valve core 20 and the second ball valve core 30 are rotated through the actuator 1000 to realize the conversion between a heat supply state and a refrigeration state and the control of flow under.
When in a heating state, the first hole 211 of the first ball valve core 20 is communicated with the hot water inlet 40, the second hole 212 of the first ball valve core 20 is communicated with the transition passage 510 at one end of the first valve cavity 110 and is communicated with the third valve cavity 310, two ends of a flow passage of the second ball valve core 30 are respectively communicated with the hot water outlet 60 and the input port 80, the cold water inlet 50 and the cold water outlet 70 are both blocked, hot water enters from the hot water inlet 40, passes through a pressure difference control assembly in the third valve cavity 310, then enters from the output port 90 into the fan coil 2, then flows back to the input port 80, and is output from the hot water outlet 60 through the second ball valve core 30, so that heating is realized; when in a refrigerating state, two ends of a flow passage of the first ball valve core 20 are respectively communicated with the cold water inlet 50 and the third valve cavity 310, two ends of a flow passage of the second ball valve core 30 are respectively communicated with the cold water outlet 70 and the input port 80, the hot water inlet 40 and the hot water outlet 60 are both blocked, cold water enters from the cold water inlet 50, passes through a pressure difference control assembly in the third valve cavity 310, then enters into the fan coil 2 from the output port 90, then flows back to the input port 80, and is output from the cold water outlet 70 through the second ball valve core 30, so that refrigeration is realized. The pressure differential control assembly is configured to maintain a pressure differential at the outlet 90 prior to entering the fan coil 2, thereby achieving full pressure independent flow control.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. A cold and hot switching dynamic balance electric regulating valve is characterized by comprising a valve body unit (1) and an actuator (1000), wherein the valve body unit (1) comprises a valve body (10), a first ball valve core (20) and a second ball valve core (30) which are arranged in the valve body (10),
a first valve cavity (110) for rotatably mounting a first ball valve core (20) and a second valve cavity (210) for rotatably mounting a second ball valve core (30) are arranged in the valve body (10), the first valve cavity (110) is communicated with the second valve cavity (210), a cold water inlet (50) and a hot water inlet (40) which are communicated with the first valve cavity (110) and a cold water outlet (70) and a hot water outlet (60) which are communicated with the second valve cavity (210) are arranged on the valve body (10),
the valve body unit (1) further comprises a pressure difference control assembly, a third valve cavity (310) used for installing the pressure difference control assembly is further arranged in the valve body (10), the third valve cavity (310) is communicated with the first valve cavity (110), an output port (90) communicated with the third valve cavity (310) and an input port (80) communicated with the second valve cavity (210) are arranged on the valve body (10),
the actuator (1000) is mounted on the valve body (10) and used for controlling the rotation of the first ball valve core (20) and the second ball valve core (30), the first ball valve core (20) and the second ball valve core (30) are both provided with flow channels, when in a heat supply state, two ends of the flow channel of the first ball valve core (20) are respectively communicated with the hot water inlet (40) and the third valve cavity (310), two ends of the flow channel of the second ball valve core (30) are respectively communicated with the hot water outlet (60) and the input port (80), and the cold water inlet (50) and the cold water outlet (70) are both blocked; when the valve is in a refrigerating state, two ends of a flow passage of the first ball valve core (20) are respectively communicated with the cold water inlet (50) and the third valve cavity (310), two ends of a flow passage of the second ball valve core (30) are respectively communicated with the cold water outlet (70) and the input port (80), and the hot water inlet (40) and the hot water outlet (60) are blocked.
2. A cold-hot switching dynamic balance electric control valve according to claim 1, wherein the valve body (10) is provided with a connecting passage (410) having two ends respectively communicated with the first valve chamber (110) and the second valve chamber (210), a central connecting line of the first valve chamber (110) and the second valve chamber (210) and a central line of the connecting passage (410) are located on the same straight line, and the connecting passage (410) is rotatably provided with a connecting member (401) for connecting the first ball valve and the second ball valve.
3. The cold-hot switching dynamic balance electric regulating valve according to claim 1 or 2, wherein the valve body (10) is further provided with an execution passage (610) with two ends respectively communicated with the first valve cavity (110) and the outside of the valve body (10), an execution rod (601) sealed on the inner wall of the execution passage (610) is rotatably arranged in the execution passage (610), one end of the execution rod (601) close to the first valve cavity (110) is connected with the first valve core, and the other end of the execution rod (601) extends out of the outside of the valve body (10) and is connected with the actuator (1000).
4. A cold-hot switching dynamic balance electric control valve according to claim 3, wherein the actuating rod (601) comprises a connecting rod (602) and a sealing member (603) annularly arranged outside the connecting rod (602), and an outer side surface of the sealing member (603) far away from the connecting rod (602) is in elastic sealing abutment with an inner wall of the actuating channel (610).
5. A cold-hot switching dynamic balance electric control valve according to claim 1, wherein the first ball valve core (20) and the second ball valve core (30) each comprise a ball body (21), the ball body (21) is provided with a first hole (211) and a second hole (212) which are communicated with each other inside the ball body (21), the first hole (211) and the second hole (212) are communicated to form the flow passage, the center lines of the first hole (211) and the second hole (212) are perpendicular to each other, the center lines of the first hole (211) and the second hole (212) of the first ball valve core (20) are both located on a plane formed by the center lines of the cold water inlet (50) and the hot water inlet (40), and the center lines of the first hole (211) and the second hole (212) of the second ball valve core (30) are both located on a plane formed by the center lines of the hot water outlet (60) and the cold water inlet (50).
6. A cold and hot switching dynamic balance electric control valve as claimed in claim 5, wherein said ball (21) is provided with cutting planes (213) on two sides of said flow channel, said cutting planes being parallel to the planes of the center lines of said first hole (211) and said second hole (212), said cutting planes (213) are respectively vertically provided with connecting convex columns (214) having center lines passing through the center of said ball (21).
7. A cold-hot switching dynamic balance electric control valve according to claim 1, wherein the valve body (10) comprises a first cylindrical valve body part (100), a second cylindrical valve body part (200), a third cylindrical valve body part (300) and a valve body connecting part (400) connecting the first cylindrical valve body part (100) and the second cylindrical valve body part (200), the first cylindrical valve body part (100) is provided with the first valve cavity (110) with a cylindrical cross section, the second cylindrical valve body part (200) is provided with the second valve cavity (210) with a cylindrical cross section, the connecting passage (410) is arranged in the valve body connecting part (400) and two ends of the connecting passage are respectively communicated with the first valve cavity (110) and the second valve cavity (210); the central lines of the first valve cavity (110) and the second valve cavity (210) are parallel to each other and are perpendicular to the central line of the connecting passage (410); one end of the third cylindrical valve body part (300) is connected with the first cylindrical valve body part (100) into a whole, the third cylindrical valve body part (300) is internally provided with a third valve cavity (310) with a cylindrical section, the center line of the third valve cavity (310) and the center line of the connecting passage (410) are arranged at an angle, and the first valve cavity (110) is communicated with the third valve cavity (310) through a transition passage (510).
8. The cold and hot switching dynamic balance electric regulating valve according to claim 1, wherein the inner wall of the first valve cavity (110) is in clearance fit with the first ball valve core (20), the cold water inlet (50) and the hot water inlet (40) are respectively arranged at two ends of the first valve cavity (110) in the axial direction, the respective orifice edges of the cold water inlet (50) and the hot water inlet (40) are provided with sealing components, the output port (90) is arranged at one side of the third cylindrical valve body part (300) far away from the first cylindrical valve body part (100) and the central line of the third cylindrical valve body part is perpendicular to the axial direction of the first valve cavity (110), and the central lines of the cold water inlet (50), the hot water inlet (40) and the output port (90) are coplanar with the central line of the flow passage of the first ball valve core (20); the hot water outlet (60) and the cold water outlet (70) are respectively arranged at two ends of the second valve cavity (210) in the axis direction, the edge of each orifice of the cold water outlet (70) and the hot water outlet (60) is provided with a sealing component, the input port (80) is arranged at one side of the second cylindrical valve body part (200), and each center line of the cold water outlet (70), the hot water outlet (60) and the input port (80) is coplanar with the center line of the flow channel of the second ball valve core (30).
9. The cold-hot switching dynamic balance electric control valve according to claim 1, the pressure difference control assembly comprises an adjusting valve body (10) fixed in the third valve cavity (310) and a sliding valve core assembly (320) arranged in the adjusting valve body (10) in a sliding way, a flow cavity and a pressure regulating cavity which are not communicated are formed in the regulating valve body (10) and are positioned at two sides of the sliding valve core assembly (320), a water inlet (331) communicated with the transition passage (510) and a water outlet (332) communicated with the output port (90) are arranged on the regulating valve body (10) and positioned in the flow cavity, the third cylindrical valve body part (300) is provided with a pressure guide channel (305) for communicating the transition channel (510) with the pressure regulating cavity, a pressure regulating spring (342) is arranged on the regulating valve body (10) and positioned in the flow cavity, the pressure regulating spring (342) has a tendency of pushing the sliding valve core assembly (320) to move towards the pressure regulating cavity.
10. The cold-hot switching dynamic balance electric control valve according to claim 9, the regulating valve body (10) comprises an annular sleeve (330), a water inlet seat (340) and a pressure regulating seat (341) which are arranged at two ends of the sleeve (330), the water inlet (331) is arranged on the water inlet seat (340), the water outlet (332) is arranged on the sleeve (330), the third cylindrical valve body part (300) comprises a third cylinder body part (301) with an opening at one end and a third end cover (302) covered at the opening, a third annular connecting part (303) abutted against the pressure regulating seat (341) is convexly arranged on one side surface of the third end cover (302) close to the third cylinder body part (301), a pressure guide hole (3411) is arranged on one side of the pressure regulating seat (341) and positioned outside the third annular connecting part (303), the pressure guide hole (3411) is communicated between the pressure guide channel (305) and the pressure regulating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167475.1A CN112361030A (en) | 2020-10-27 | 2020-10-27 | Cold and hot switching dynamic balance electric regulating valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167475.1A CN112361030A (en) | 2020-10-27 | 2020-10-27 | Cold and hot switching dynamic balance electric regulating valve |
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| Publication Number | Publication Date |
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| CN112361030A true CN112361030A (en) | 2021-02-12 |
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| CN202011167475.1A Pending CN112361030A (en) | 2020-10-27 | 2020-10-27 | Cold and hot switching dynamic balance electric regulating valve |
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| Country | Link |
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| CN (1) | CN112361030A (en) |
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| CN114618196A (en) * | 2022-01-18 | 2022-06-14 | 浙江威邦机电科技有限公司 | Sand filter capable of automatically switching flow channels |
| CN115889004A (en) * | 2022-12-21 | 2023-04-04 | 杭州飞科电气有限公司 | Columnar cyclone separator structure |
| WO2024168373A1 (en) * | 2023-02-16 | 2024-08-22 | Herz Armaturen Ges.M.B.H. | Control valve for selectively controlling a fluid flow |
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Application publication date: 20210212 |
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| RJ01 | Rejection of invention patent application after publication |