CN1241693A

CN1241693A - Heating/cooling system

Info

Publication number: CN1241693A
Application number: CN 99107695
Authority: CN
Inventors: 迪恩·马修斯
Original assignee: Satchwell Control Systems Ltd
Current assignee: TAC Products Ltd
Priority date: 1998-05-15
Filing date: 1999-05-14
Publication date: 2000-01-19

Abstract

A system for controlling the flow of a heating or cooling fluid. The system comprises a conduit through which the fluid can flow in use, and a valve for controlling the flow of fluid through the conduit. The valve comprises a first valve member having at least one passageway formed therein for allowing fluid to pass therethrough, the first member having an engaging surface formed from a friction reducing material, and a second valve member having at least one passageway formed therein and having an engaging surface formed from a friction reducing material, the surface arranged in fluid-tight engagement with the engaging surface of the first member the second member rotatable between a position in which the passageways allow fluid flow through the valve and a position in which fluid flow is prevented. A device for controlling the rotation of the second member is provided, thereby controlling the flow of fluid through the valve. The maximum flow rate or Kvs value of the valve assembly can be adjusted by manually rotating the first valve member.

Description

Heating/cooling system

The application relates to a kind of heating/cooling system that passes through a pipeline supply heating or cooling fluid.

Certainly, there have been the several years in the heating/cooling system of the above-mentioned type.This system uses the temperature of a valve control fluid to control flowing of fluid usually.The structure of many kinds of valves had been proposed, but be difficult to provide a wherein cheap and sufficiently stable system's (such as home system) that is applied to various occasions of control valve unit, or can provide sufficiently high controlling level to come accurately and stably to control the system (as required in the commercial Application) that fluid flows.

The objective of the invention is to overcome above-mentioned and other problem.

According to a first aspect of the invention, a system is used for controlling flowing of heating or cooling fluid, and this system comprises that has a housing that enters pipeline at least, and in use, fluid can enter pipeline by this and flow to this housing;

At least one flow pass, in use, fluid can flow out from this housing by this flow pass;

A control fluid flows through the valve of housing, and this valve comprises:

With respect to first valve member of first axle symmetry, it has an axially extended hole and a horizontal expansion and joining so that the passage of fluid from wherein flowing through with the hole;

Extend in this hole and with second valve member that connects of the first valve member fluid-tight, this second valve member has at least one entry port and at least one outlet so that fluid flows through from valve, wherein second valve member is that the rotating fluid of controlling flows through this valve with respect to first valve member; With

Thereby control the device of the rotation control fluid of second valve member by this valve flow.

This housing can have two and enter pipeline and an outflow pipeline, and perhaps one enters pipeline and two outflow pipelines, and perhaps two enter pipeline and two outflow pipelines.

One or two valve member can have a matching surface that is made of the material that reduces to rub.

This housing can comprise the valve components that pair of matched is closed.Second valve member can be conical in shape basically or be columniform basically.

This passage of horizontal expansion can be vertical with this hole basically on first valve member.

According to a second aspect of the invention, provide one to be used for controlling heating or the mobile system of cooling fluid, this system comprises:

The fluid pipeline that can flow through in use; With

A control fluid flows through the valve of this pipeline, and this valve comprises:

At least first valve member that has formation passage thereon, this passage are used to make fluid from wherein passing through, and this first valve member has a matching surface that is made of the material that reduces to rub;

At least have formation passage thereon and have second valve member of a matching surface that constitutes by the material that reduces to rub, this surface cooperates with the matching surface of first valve member is fluid-tight, and this second valve member flows through between the mobile position that is prevented from of valve body and fluid fluid at passage and rotates; With

A plurality of passages can be formed on each valve member so that this valve can be controlled fluid more than flowing in the passage.At least one passage can have the sectional shape of such feature: make that second valve body is non-linear with respect to the pivotal position of first valve body and the relation between the flow or equal percentage changes.

The device of controlling the rotation of second valve member can be a rotating driver.Can use a low tension drive motor, perhaps or even a hand lever.

This system also provides a rotating driveshaft in addition, and it is integral with second valve member and links to each other with driver element.

The manually-operable control gear can be set control the rotation of second valve member.This manually-operable control gear can have precedence over rotating driving device.

This system can be one family heating or cooling system.

The material that reduces to rub can be plastics, and for example liquid crystal polymer (LCP) perhaps can be a pottery, and each valve member can all be made by it.

Fluid seal can be arranged between two valve members, perhaps along their outer periphery.This valve also can form a removable unit.

Referring now to accompanying drawing embodiments of the invention are described, wherein:

Figure 1A and 1B are cross section and the stereograms that shows according to the first embodiment of the invention system;

Fig. 2 is the schematic representation of the valve member structure used in displayed map 1 system;

Fig. 3 is the schematic representation according to the second embodiment of the invention system;

Fig. 4 is the schematic representation according to the third embodiment of the invention system;

Fig. 5 cuts open perspective view according to an office of fourth embodiment of the invention system;

Fig. 6 is the cross-sectional view of system among Fig. 5;

Fig. 7 cuts open perspective view according to an office of fifth embodiment of the invention system;

Fig. 8 is the cross-sectional view of system among Fig. 7;

Fig. 9 is the planimetric map of the system of demonstration among Fig. 5 to 8.

Referring to Figure 1A and 1B, a heating system has such as heating or the pipeline 1 of cooling fluid from wherein flowing through such as water or refrigeration agents.In order to control flowing of fluid, a valve portion 2 is positioned at the circulation passage of pipeline 1.Arrow has shown flowing of when valve is opened fluid.In this embodiment, valve cell 2 is easy to dismounting so that repair, and by filler link 3 and pipeline 1 sealed attachment.

But this filler link can be arranged to quick mounting.

According to the application, valve cell 2 can have the more plastic casing of cost saving (being used for the low pressure occasion) of a housing that is made of metal (being used for the high pressure occasion) or.

First valve member 4 and second valve member 5 are positioned at valve cell 2.In this embodiment, first valve member 4 is fixed, and second valve member 5 is arranged to can be around the rotational of axle 6.But it is contemplated that also second valve member 5 and axle 6 can be used as a unitary element and form.Axle 6 links to each other with electric servomotor, and in the present embodiment, this electric servomotor is a low-pressure type, such as JR NES 507 or similar servo unit.The advantage that a low pressure servo unit is set is that it can directly be controlled by traditional control electric current, and does not need expensive connection set and electricity generating device.

First and

second valve members

4,5 constitute by having a material that reduces surface friction, have used LCP Vectra in the present embodiment ^Hoechst.If second valve member 5 and axle 6 form an element, then be coated with the material that reduces to rub on second valve member 5.This means that 49 needs of servomotor produce a low-down rotation torque, are 0.3 N in the present embodiment. rice.

Axle 6 links to each other with second valve member 5 by a connecting element 12.First valve member 4 remains in the housing 13 that is formed by a kind of plastic materials, and this housing 13 provides being connected of fluid sealing to be in the inserting member 14 by Sealing 15 and 16.Axle 6 limits its slewing area by the limiting component 17 and first housing member 18.First housing member 18 is in second housing member 19.The rotation of axle 6 also can limit by servomechanism installation, valve chest and servo control signal.

Seal washer 20,21 has been guaranteed enough fluid-tight sealing.A clip 22 is located axle.Fig. 2 has shown the planimetric map and the side view of first and second valve members 4,5.First valve member 4 has two formation passage 8,9 thereon.Second valve member 5 also has two formation path 10,11 thereon.In the embodiment shown in Fig. 1 a and the 1b, the passage 9 of first valve member 4 can be inaccessible, also can be to lead to the same pipeline that passage 8 leads to, but in of the present invention second shown in Fig. 3 and 4 and the 3rd embodiment, it leads to other pipeline.Passage 11 on these passages on first valve member 4 and second valve member 5 is normally circular.The path 10 of second valve member 5 in the present embodiment has the shape of a characterization.But this feature depends on the particular characteristics of specific heating system, but it is arranged to limit flowing of fluid more accurately according to the pivotal position of second valve member 5 usually.

The cross-section area of selector channel 8,9,10,11 provides appropriate C V or KVs grade (it can observe Reynard series) to adapt so that make pressure fall flow.

These two valve members can have by the peripheral members of single packing ring or welding or the sealing of bonding peripheral members in abutting connection with the transverse section.

Be in operation, the rotation of servomotor 49 control second valve member 5 obtaining the suitable ratio that passage 8 (embodiment shown in Figure 1A and the 1B) and passage 9 (other embodiment) communicate with the path 10,11 of second valve member 5, thereby is controlled the flow of fluid.In addition, the combination of the rotating driver of a very low moment of torsion and the valve member 5 that reduces to rub has guaranteed that manual priority can easily realize, only need the user minimum power and do not need any special equipment.Being applied to equally in the present embodiment shown in Fig. 5 and Fig. 7, control gear 50 both can be arranged on the axle 6, also can be arranged on

second valve member

5,44,46, in the present embodiment, it has a pair of relative arm 51 and stretches out from the axle 6 or

second valve member

5,44,46.This control gear also can be used as a valve position display device to be shown to operator's

second valve member

5,44,46 residing positions.

Fig. 3 and Fig. 4 have shown the additional embodiments of heating/cooling system, and wherein valve adopts threeway and four-way valve respectively.And arrow has shown the direction that fluid flows.In all these embodiments, this system can flow with opposite fluid and move.

With reference to Fig. 5 and Fig. 6, heating system has the housing 30 that comprises two substantially similar parts 31 that match.This housing 30 be provided with first enter pipeline 35, the first and second flow out 33,34 and one in pipelines extra enter pipeline 32, the fluid that pipeline 32 is restored to housing 30 flows out from pipeline 34.Enter pipeline 32 and flow out pipeline 33 coaxially to each other arrangement basically, and with also be the

pipeline

34 and 35 parallel spaced apart of arranging coaxially to each other basically.Pipe 36 is connected on the corresponding pipeline 32 to 35 with being arranged to chucking.

Valve 40 is arranged between pipeline 32 and the pipeline 33.Passage 41 makes communicating of valve 40 and connecting passage 42 fluids, and connecting passage 42 links to each other with 35 with pipeline 34.This valve 40 comprises one first valve member 43 and one second valve member 44.

First valve member 43 is with respect to axle 43a symmetry, and is provided with axially extended hole 45.Passage 46 is substantially perpendicular to hole 45 and extends ground by first valve member 44.Hole 45 holds second valve member 44, feasible in use first valve member and the second valve member fluid-tight engagement.

Second valve member 44 has mouthfuls 47 and 48 and be connected with servomotor 49 that its second valve member 44 of control rotates.Second valve member 44 can make fluid flow into from entering pipeline 35, by passage 41 and from position that pipeline 33 flows out with make fluid flow into and flow out pipeline 34 from entering pipeline 35, returns and rotates between the position that pipeline 33 flows out by passage 32.This second valve member is made the shape that fluid is changed according to its pivotal position by the flow that enters pipeline 32.Entry port 47,48 is made and made fluid is transformable shape by the flow that flows out pipeline 34 and passage 41.This variation can have linearity or characteristic of nonlinear.

Second valve member 44 is provided with control gear 50, and the operation that it can be manual has precedence over servomotor 49 operations.This control gear 50 has a pair of relative arm 51 that extends out from second valve member 44.Before use, the operator can easily use control gear 50 that second valve member 44,64 is set in correct position.In addition, in use, this valve can be operated to change flow and needn't need a control signal to deliver to servomotor 49.Arm 51 is indicated the position of second valve member 44 for the native system operator, so that this operator knows the degree that pipeline 32 is opened that enters.

Be appreciated that first valve member 43 can be integrated on the housing 30, to reduce the number of element.

It is also understood that fluid can be rightabout by the flow direction of passage 41, at this moment valve will be provided with two imports and an outlet.In this replacement, valve will be controlled the ratio that the fluid by valve flows from several inlets.

Fig. 7 and Fig. 8 have shown the 5th embodiment of the present invention, and wherein valve 60 has first valve member 63 and second valve member 64 of the structure different with the valve member among the 4th embodiment.

First valve member 63 is basically with respect to axle 63a symmetry and be provided with axially extended hole 65.The part of hole 65a be basically conical with also be that conical second valve member 64 matches.This second valve member 64 is provided with two entry ports 67,68a.Entry port 67 is used for being connected with entering pipeline 32 and flow out pipeline 33.When needing, entry port 68a is connected and is connected with passage 41 with outflow pipeline 33 by the outflow opening 68 of operation with it.A matching part 69 is arranged on second valve member 64, and in use, matching part 69 extends in the hole 65 and with control gear 50 and matches.

Fig. 9 has shown that the arm 51 of control gear stretches out below servomechanism installation 49.When this servomechanism installation rotated

second valve member

5,44,64, control arm 51 also had been driven to rotate.Show the position of second valve member and the degree that notifying operation person valve is opened according to these arms.Than outside, first valve member 63 (43 among the embodiment in front) can hand rotation be adjusted the Kvs value of peak rate of flow and valve assembly.This Kvs can be continuous adjustment be used for the only hydraulic performance of bypass/branch road or can increase obtaining in the size of predefined step according to present Kvs.Owing to can obtain only Kvs position, can save the equilibrium valve in the bypass that links to each other, thereby bring considerable expense to save.Select a

mouthful

66a, 66,67,68 and 46,47,48 shape forms linear the adjustment, and this will make 3 or 4 valves be made of an element, thereby reduce cost owing to reduced the material of use.

Passage 46,

66a cross pipeline

32,33 axial moving adjusts peak rate of flow.This makes and can obtain only performance and saved the equilibrium valve that occurs usually in some cases in this class hydraulic system.

Can on first valve member, show this Kvs value, and set by a reference point on the valve body.This will make and use the engineer to write down this setting after using.When also using equilibrium valve, a cheap separating valve can be set, such as a sliding connector as a kind of hydraulic isolation device.

Claims

1. control heating or the mobile system of cooling fluid for one, this system comprises: one has the housing that at least one enters pipeline, and in use, fluid enters pipeline by this and flows to this housing;

At least one flows out pipeline, and in use, fluid flows out from this housing by this outflow pipeline;

One is used to control the valve that flow of fluid by housing, and this valve comprises:

Extend in this hole and with second valve member that connects of the first valve member fluid-tight, this second valve member has at least one entry port and at least one outlet so that fluid flows through from valve, wherein, this second valve member is that the rotating fluid of controlling flows through this valve with respect to first valve member; With

Thereby control the device that flow of the rotation control fluid of second valve member by this valve.

2. the system described in claim 1 is characterized in that, this housing has two and enters pipeline and an outflow pipeline.

3. the system described in claim 1 is characterized in that, this housing has one and enters pipeline and two outflow pipelines.

4. the system described in claim 1 is characterized in that, this housing has two and enters pipeline and two outflow pipelines.

5. the system described in above-mentioned any one claim is characterized in that one or two valve member has one by reducing the matching surface that friction material constitutes.

6. the system described in above-mentioned any one claim is characterized in that the housing look is drawn together the valve body spare that pair of matched is closed.

7. the system described in above-mentioned any one claim is characterized in that second valve member is being conical in shape substantially.

8. one is characterized in that as any one described system in the claim 1 to 6 second valve member is columniform basically.

9. the system described in above-mentioned any one claim is characterized in that the passage that passes first valve member is substantially perpendicular to this hole.

10. control heating or the mobile system of cooling fluid for one, this system comprises:

One in use fluid by its pipeline that flows; With

A control fluid passes through the valve of this pipeline, and this valve comprises:

At least have a formation thereon passage and have one by second valve member that reduces the matching surface that friction material constitutes, the matching surface fluid-tight ground of this surface and first valve member cooperates, and this second valve member flows through between the mobile position that is prevented from of valve body and fluid fluid at passage and rotates; With

11. a system as claimed in claim 10 is characterized in that, is formed with a plurality of passages on each valve member, makes valve can control fluid ducted mobile more than one.

12. a system as claimed in claim 11 is characterized in that at least one passage has the shape of cross section of characterization.

13. one as the described system of above-mentioned any one claim is characterized in that, the device of controlling the rotation of second valve member comprises a rotary drive unit, such as an actuating motor.

14. one as the described system of above-mentioned any one claim is characterized in that, also comprise one with the second valve member one electric forming and the live axle that links to each other with driver element.

15. one as the described system of above-mentioned any one claim is characterized in that, also comprise a manual overvide that is used for controlling the rotation of second valve member.

16. one as the described system of above-mentioned any one claim is characterized in that, this system is one family heating or cooling system.

17. one as the described system of above-mentioned any one claim is characterized in that this material that reduces to rub is plastics.

18. a system as claimed in claim 17 is characterized in that, this material that reduces to rub is a liquid crystal polymer.

19. one is characterized in that as the system one of in the claim 1 to 16, this material that reduces to rub is a pottery.

20. one as the described system of above-mentioned any one claim is characterized in that, this valve forms as a single removable unit.

21. one as the described system of above-mentioned any one claim is characterized in that manual rotation first valve member is controlled the Kvs value of peak rate of flow or this valve system.