CN203926853U - Thermostat valve - Google Patents
Thermostat valve Download PDFInfo
- Publication number
- CN203926853U CN203926853U CN201420226855.1U CN201420226855U CN203926853U CN 203926853 U CN203926853 U CN 203926853U CN 201420226855 U CN201420226855 U CN 201420226855U CN 203926853 U CN203926853 U CN 203926853U
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- Prior art keywords
- valve
- flap
- thermostat
- thermostat valve
- flow
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Abstract
The utility model discloses a kind of thermostat valve.This thermostat valve comprises: valve body, and this valve body has the medium of permission and from the import of thermostat valve, flow to the cavity of outlet; The first flap and the second flap, this first and second flap is engaged in the cavity of valve body movably, and the movement by the first and second flaps realizes closing and opening of thermostat valve; Valve rod assembly, this valve rod assembly is fixedly connected with the second flap with the first flap respectively in lower end, by moving of valve rod assembly, drives the first and second flaps to move; Wherein, cavity is configured to epicoele, lumen and three cavitys of cavity of resorption, and the first flap moves in epicoele, and the second flap moves in lumen, and wherein lumen is communicated with valve body import, and epicoele and cavity of resorption are communicated with valve outlet respectively.
Description
Technical field
The utility model relates to field of heating ventilation air conditioning, especially a kind of thermostat valve.
Background technique
Heating ventilation air-conditioning system is for controlling the room temperature of commercial building.Such as hotel, hospital, office building, gymnasium etc. is generally all provided with heating ventilation air-conditioning system.Heating ventilation air-conditioning system by conveyance conduit by hot and cold medium transport each room to building.For central air-conditioning system, in room furred ceiling, fan coil unit is installed.Fan coil unit working principle is will after air cooling (heating), to be blown into each room by cold water (hot water) coil pipe.By the thermostat valve of fan coil unit, control the open and close of pipeline, and in conjunction with air output, just can control the constant of room temperature.For floor heating system, at the front end of water collecting and diversifying device, all the opening and closing that thermostat valve is controlled pipeline can be housed, and control room temperature in conjunction with room temperature controller.
Central air-conditioner and floor heating system for example, because many reasons exists the unbalanced phenomenon of waterpower: the pressure medium that the group of disembarking is more distantly related can be than the little of the nearlyer room of group of disembarking with flow.Design of HVAC person, in order to meet the flow in severe room, can strengthen lift of pump, then the pressure that causes other rooms more or less higher than demand pressure.Although thermostat valve is installed, the maximum shut off differential pressure of existing thermostat valve is all very little, and when system pressure difference surpasses the maximum shut off differential pressure of Electric Actuated Stop Valves, thermostat valve will produce leakage, causes room temperature control not normal.If system guarantees that by the mode that increases equilibrium valve system pressure difference is within the scope of the shut off differential pressure of thermostat valve, system cost will significantly improve again so.Therefore need a thermostat valve with high shut off differential pressure to control flow system flow, to reach comfortable carefree room temperature control.
Model utility content
The purpose of this utility model is intended to solve at least one aspect of the above-mentioned problems in the prior art and defect.
The utility model provides a thermostat valve, has that temperature is controlled, high pressure reduction, large flow, compact structure, the feature such as easy to use of turn-offing.
According to an aspect of the present utility model, a kind of thermostat valve is provided, this thermostat valve comprises: valve body, this valve body has the medium of permission and from the import of thermostat valve, flow to the cavity of outlet; The first flap and the second flap, this first and second flap is engaged in the cavity of valve body movably, and the movement by the first and second flaps realizes closing and opening of thermostat valve; Valve rod assembly, this valve rod assembly is fixedly connected with the second flap with the first flap respectively in lower end, by moving of valve rod assembly, drives the first and second flaps to move; Wherein, cavity is configured to epicoele, lumen and three cavitys of cavity of resorption, and the first flap moves in epicoele, and the second flap moves in lumen, and wherein lumen is communicated with valve body import, and epicoele and cavity of resorption are communicated with valve outlet respectively.
In mode of execution of the present utility model: be designed with epicoele, lumen and cavity of resorption in this thermostat valve (hereinafter to be referred as valve), lumen is communicated with import, epicoele and cavity of resorption are communicated with outlet, are designed with fixing seal seat in epicoele, are designed with floating seal seat in cavity of resorption.Two sealing seats contact with two flaps respectively, form sealing.When valve opening (closing), medium can form respectively two opposite effect power on two flaps, these two active forces offset, reduced the active force of medium on flap, (closing) power that makes to open reduces, and therefore under higher pressure reduction, also can easily close with drive unit.Wherein floating seal seat is the floating valve seat with elastic device, has well solved a difficult problem for Double-clack and the sealing of double-sealing seat.Floating seal seat can absorb the size deviation in processing and assembling, makes valve just can reach reliable sealability under simple processing technology, has also saved the too high and cost of increase of requirement on machining accuracy.
Valve provided by the utility model, has high feature of turn-offing pressure and large flow, for heating ventilation air-conditioning system provides the solution of efficient and cost-effective.
Accompanying drawing explanation
These and/or other aspect of the present utility model and advantage obviously and are easily understood below in conjunction with becoming in accompanying drawing description of preferred embodiments, wherein:
Fig. 1 is according to the sectional plan view of the first embodiment's of the present utility model thermostat valve;
Fig. 2 is according to the sectional plan view of the second embodiment's of the present utility model thermostat valve;
Fig. 3 is the plan view of the thermostat valve that shows of Fig. 2; With
Fig. 4 a and 4b are the decomposition plan views of the part parts that show in Fig. 2.
Embodiment
Below by embodiment, and 1-4b by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In specification, same or analogous drawing reference numeral is indicated same or analogous parts.Followingly with reference to accompanying drawing, the explanation of the utility model mode of execution is intended to present general inventive concept of the present utility model to make an explanation, and does not should be understood to a kind of restriction of the present utility model.
In the embodiment of the present invention, thermostat valve is designed with driver connection interface, can connect electronic or thermoelectricity driving head, for the switch of control valve.Driving head and indoor thermostat carry out signal and communication, and user arranges room temperature by temp controller.Temp controller is drive unit input feedback signal, thus the unlatching of control valve or close.When room temperature is during higher than setting temperature, valve closing; When room temperature is during lower than setting temperature, valve opening.Circulation realizes the adjusting of room temperature and so forth.This valve is mainly used in fan coil unit and central heating system.
Flow-rate adjustment ring can be equipped with in valve top, and this regulating ring is connected with inner throttle sleeve.Can set by rotating adjustment ring the flow resistance of valve, thus the room waterpower balance phenomenon of balance diverse location and floor.Stability in order to guarantee that flow resistance is set, is equipped with locking device on regulating ring.After flow has presetted, the position presetting can be locked, so just the position presetting can be do not changed because of the impact of current.In order to increase the accuracy of flow set, in the import and export of valve, be designed with respectively interface of pressure measurement.From Bernoulli's waterpower principle, current are through certain resistance, and hydraulic pressure will decline, and between the measurement interface of upstream and downstream, will produce pressure difference.Resistance by this pressure difference and valve just can calculate the flow through valve.The drag data of the different gears of valve can be stored on a palm PC, and palm PC carries out data transmission by the modes such as bluetooth and a pressure instrumentataion, on the measurement interface of pressure measurement contact pin insertion valve design, just can measure pressure difference.Commissioning staff needs only input product model and presets gear, and palm PC just can calculate flow automatically.
Below with reference to accompanying drawing, stress concrete structure and the working principle of thermostat valve provided by the utility model.
The first embodiment
Referring to Fig. 1, show the thermostat valve when the closed condition according to the utility model the first embodiment.This thermostat valve mainly comprises with lower member: valve body 1, the first flap 2, the second flap 11 and valve rod assembly 5,7.Valve body 1 has permission medium (not shown) and from import 25, flow to the cavity of outlet 26.The first flap 2 and the second flap 11 are engaged in respectively in the cavity of valve body 1 movably, and the movement by described two flaps realizes closing and opening of thermostat valve.Valve rod assembly specifically comprises thimble 7 and valve rod 5, for example, and valve rod 5 is fixedly connected with respectively (be threaded connection or flanging process is connected) with the second flap 11 with the first flap 2 in lower end, can drive described two flaps to move together by moving up and down of this valve rod 5 like this.Certainly, valve rod assembly is not limited to above-mentioned illustrated situation, and it can be substituted by alternate manner as known in the art.In addition, bonnet can also be set above valve rod assembly.In this example, valve rod 5 comprises valve rod top and the stem lower portion interconnecting, and the lower end on valve rod top is connected with the first flap 2 interference, and the lower end of stem lower portion and the second flap 11 are connected and fixed by flange.The lower end on final valve rod top links together by the upper end of screw thread and stem lower portion, and makes stem lower portion that the first flap is pressed in to valve rod top.
In order realizing, to there is high function of turn-offing pressure and large flow, in thermostat valve of the present utility model, cavity design in valve body 1 to be become to epicoele 21, lumen 22 and 23 3 cavitys of cavity of resorption.When valve is changed from open mode to closed condition, the first flap 2 and the second flap 11 move down respectively under the effect of valve rod 5 in epicoele 21 and lumen 22, to realize closing of valve.Particularly, lumen 22 is communicated with valve body import 25, and described epicoele 21 and cavity of resorption 23 are communicated with outlet 26 respectively.In this example, described cavity of resorption 23 for example, is communicated with outlet 26 by pilot passage (one or more pressure guide hole) 13.Like this, under the closed condition of the valve shown in Fig. 1, because the medium from import 25 will produce directed force F 1 upwards on the first flap 2, and produce downward directed force F 2 on the second flap 11.Now, because epicoele 21 26 is directly communicated with outlet, and cavity of resorption 23 is communicated with outlet 26 by pressure guide hole 13, like this from the directed force F 3 that medium will produce downward directed force F 4 on the first flap 2 and generation makes progress on the second flap 11 that exports 26.Like this, by the course of action of valve, directed force F 1 will be cancelled out each other with F2, F3 and F4, valve opening (closing) is more prone to, thereby increase shut off differential pressure.
In one embodiment, in the bottom of epicoele 21, can be designed with fixing seal seat 10, the top design of cavity of resorption 23 has floating seal seat 12.Floating seal seat 12 supports by the elastic device 24 of its underpart, to realize automatic adjusting sealing.
In closing process, flap 11 first contacts and forms primary seal with floating seal seat 12, and then flap 2 contacts with fixing seal seat 10 again, forms secondary seal.
In Fig. 1, the top of epicoele 21 is the valve gap 4 being connected with valve body 1.
The second embodiment
Fig. 2-Fig. 4 b shows the view of the second embodiment's of the present utility model thermostat valve.Compare with the first embodiment, the second embodiment's valve substantially the same with structural configuration with the working principle of opening about turn-offing, difference is to have set up static equilibrium function and pressure measuring function.For clarity and conciseness, the parts identical with the first embodiment are given identical reference number.
In this example, by the throttle sleeve 3 being engaged in epicoele 21, realize presetting of flow.Correspondingly, valve gap 4 is arranged on the top of throttle sleeve 3, and coordinates or be tightly connected with valve body 1 at periphery place.
Be appreciated that the elastic biasing arrangement that can arrange such as spring is to realize the reset of valve rod between throttle sleeve 3 and valve rod 5.In addition, can also between the parts of valve, be provided with the seal arrangement such as seal ring, for example, between valve gap 4 and valve body 1.Specifically at this, no longer describe in detail, those skilled in the art's setting of can being correlated with as required, to realize the sealing between the parts of inside of valve.
In the present embodiment, the movement direction of thimble 7 and valve rod 5 and the first and second flaps 2,11 is to omit low dip with respect to the above-below direction in the page of Fig. 2, and the longitudinal direction of valve body 1 is the left and right directions of the page in Fig. 2, namely medium enters from exporting 26 outflows from import 25 along the left and right directions of the page in Fig. 2.That is, valve rod assembly and the movement direction of the first and second flaps 2 and 11 and the longitudinal direction of valve body 1 are inclined to several angle, such as 45 or 60 degree etc.Certainly, this movement direction can be arranged to vertical or substantially vertical with respect to the longitudinal direction of valve body 1.
Particularly, by throttle sleeve 3, realize presetting of flow.Throttle sleeve 3 is skirt shape structure, and shirt rim is designed with isenthalp opening for the flow of default valve.Throttle sleeve 3 is connected by groove and the projection that is positioned at adjusting connector 6 bottoms of throttle sleeve 3 tops.Referring to Fig. 4 a and 4b, adjusting connector 6 upper design have gear structure 16.On Flow-rate adjustment ring 9 inner rings that coordinate with adjusting connector 6, be designed with the two circle gear structures that the circle gearwheel 17 and being arranged side by side encloses small gear 18.The gear 16 of adjusting connector 6 is connected with a joggle with the small gear 18 on Flow-rate adjustment ring 9, and Flow-rate adjustment ring 9 outer rings are labeled with and preset gear.
Conventionally, this valve gap 4 is provided with a circle gear 15, with gearwheel 17 engagements on Flow-rate adjustment ring 9.Need to regulate while presetting, raise Flow-rate adjustment ring 9, make the gearwheel 17 on Flow-rate adjustment ring 9 separated with the gear 15 on valve gap 4, just can pass through rotary current regulating ring 9 driven rotary adjusting connectors 6 and throttle sleeve 3.During throttle sleeve 3 rotation, the skirt shape isenthalp opening of its lower end and outlet 26 coordinate changes opening area size, thereby has changed the resistance of valve setpoint, has reached the object presetting.After having presetted, the spring 8 that is arranged on adjusting connector 6 tops by Flow-rate adjustment ring 9 depress make it with valve gap 4 on gear 15 engagements reach the object of locking.
Preferably, referring to Fig. 3, the valve of the present embodiment also can be provided with for realizing the pressure-detecting device that is separately positioned on valve body import 25 and valve outlet 26 places of pressure measuring function.This pressure-detecting device comprises downhole joint main body 20.Valve body 1 forms an inner chamber with downhole joint main body 20, on the seal ring 19 in inner chamber, has a kerf 27.Seal ring 19 forms sealing pair with the inner chamber perisporium of downhole joint main body 20.In the situation that not inserting measurement contact pin (not shown), otch 27 closures on seal ring 19, the medium in closed valve 1.To measure contact pin and insert seal ring 19 by otch, now otch 27 expands, allow measure contact pin by and hold measurement contact pin tightly, prevent that medium from leaking, pressure medium is disclosed pin by measurement and is imported corresponding measuring equipment (not shown).
Be appreciated that in this example, the shape of flap 2,11 is roughly discoid.Certainly, flap 2 and 11 shape are not necessarily limited to above-mentioned shape, as long as can play the function of closing media flow, any applicable shape known in the art can adopt.Flap 2 and the 11 rigid supporting elements by top (for example copper dish) and the flexible gasket (for example rubber pad or cushion) being connected on it form.
In addition, flap 2 and 11 material can be that metal can be also nonmetal, such as steel, iron, aluminium, copper, plastics etc.Sealing means between flap 2,11 and valve body 1 can be that hard sealing can be also soft seal.Valve rod 5 and the Placement of flap 2,11 can be that flange is as shown in the figure connected, can also be threaded, bolt connection, interference connection, buckle connect, pin connection, jump ring connection, riveted joint, bonding, wedge shape connection etc.The position of downhole joint main body 20 can be positioned at any direction and the position at upper and lower, the forward and backward and two ends of valve.Downhole joint main body 20 can be arranged to tilt (as shown in Figure 1) with respect to the longitudinal direction of valve body 1, also can be arranged perpendicular to the longitudinal direction (not shown) of valve body 1.
In the utility model, the opening and closing of valve can be controlled by drive unit, also can manually-operable realize.The connection of drive unit can be the Connecting format such as FERRULETYPE, thread type.
As mentioned above, in this example, can select as required valve whether to be provided with static equilibrium function (for example, measurement component 3,6,8,9,15,16,17,18 etc.) and pressure measuring function (for example, measurement component 19,20 etc.).
These are only embodiments more of the present utility model, those skilled in the art will appreciate that, in the situation that do not deviate from principle and the spirit of this present general inventive concept, can make a change these embodiments, scope of the present utility model limits with claim and their equivalent.
Claims (14)
1. a thermostat valve, is characterized in that, described thermostat valve comprises:
Valve body, described valve body has the medium of permission and from the import of thermostat valve, flow to the cavity of outlet;
The first flap and the second flap, described the first and second flaps are engaged in the cavity of valve body movably, by the movement of described the first and second flaps, close and open thermostat valve;
Valve rod assembly, described valve rod assembly is fixedly connected with the second flap with the first flap respectively in lower end, by the mobile of described valve rod assembly, drives described the first and second flaps to move;
Described cavity is configured to epicoele, lumen and three cavitys of cavity of resorption, and described the first flap moves in epicoele, and the second flap moves in lumen, and wherein said lumen is communicated with described import, and described epicoele and cavity of resorption are communicated with outlet respectively.
2. thermostat valve according to claim 1, is characterized in that,
The bottom of described epicoele is provided with fixing seal seat, and the top of described cavity of resorption is provided with floating seal seat, and in the closed condition of thermostat valve, the second flap and floating seal seated connection touch and form primary seal, and the first flap and fixing seal seated connection touch and form secondary seal.
3. thermostat valve according to claim 2, is characterized in that,
Described floating seal seat supports by the elastic device in its underpart, and described cavity of resorption is communicated with outlet by pilot lane device.
4. thermostat valve according to claim 3, is characterized in that,
Being shaped as of described the first and second flaps is discoid, and is formed by the rigid supporting element on top and the flexible gasket being connected on it.
5. thermostat valve according to claim 4, is characterized in that,
The movement direction of described valve rod assembly and flap is vertical with the longitudinal direction of valve body or tilt at angle.
6. thermostat valve according to claim 5, is characterized in that,
Described thermostat valve also comprises the pressure-detecting device that is separately positioned on inlet and outlet.
7. thermostat valve according to claim 6, is characterized in that,
Described pressure-detecting device comprises downhole joint main body, and described downhole joint main body and valve body form an inner chamber, are provided with the seal ring with a kerf in described inner chamber, and described seal ring and described inner chamber perisporium form sealing pair.
8. according to the thermostat valve described in any one in claim 1-7, it is characterized in that,
Described thermostat valve also comprises the throttle sleeve in the cavity that is engaged in valve body, and described epicoele is by throttle sleeve and the first formed cavity in flap top.
9. thermostat valve according to claim 8, is characterized in that,
Described throttle sleeve is skirt shape structure, and the shirt rim of described skirt shape structure is provided with the isenthalp opening for the flow of default thermostat valve.
10. thermostat valve according to claim 9, is characterized in that,
Described thermostat valve also comprises the adjusting connector that is positioned at throttle sleeve top, and the projection of described adjusting connector bottom is connected with the groove fit on the top of throttle sleeve, and is provided with gear structure on described adjusting connector top.
11. thermostat valves according to claim 10, is characterized in that,
Described thermostat valve also comprises the Flow-rate adjustment ring coordinating with described adjusting connector, on described Flow-rate adjustment ring inner ring, be provided with the circle gearwheel and the circle small gear that are arranged side by side up and down, on the gear structure of described adjusting connector and Flow-rate adjustment ring one circle small gear is connected with a joggle, and on the outer ring of described Flow-rate adjustment ring, indicates and presets gear.
12. thermostat valves according to claim 11, is characterized in that,
Described thermostat valve also comprises the valve gap being arranged on throttle sleeve, described valve gap be provided with Flow-rate adjustment ring on a circle gear of gearwheel engagement.
13. thermostat valves according to claim 12, is characterized in that,
Described adjusting connector top is provided with spring, make one on Flow-rate adjustment ring circle gearwheel separated with the gear on valve gap raising Flow-rate adjustment ring, and after completing presetting of described flow by rotary current regulating ring driven rotary adjusting connector and throttle sleeve, described spring is depressed by Flow-rate adjustment ring the gear making it on recovery and valve gap and is again meshed.
14. thermostat valves according to claim 1, is characterized in that,
Described valve rod assembly comprises thimble and the valve rod being mutually permanently connected together, and the lower end of described valve rod is fixedly connected with described flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226855.1U CN203926853U (en) | 2014-05-05 | 2014-05-05 | Thermostat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226855.1U CN203926853U (en) | 2014-05-05 | 2014-05-05 | Thermostat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926853U true CN203926853U (en) | 2014-11-05 |
Family
ID=51822665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226855.1U Expired - Fee Related CN203926853U (en) | 2014-05-05 | 2014-05-05 | Thermostat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
| CN109469753A (en) * | 2018-12-07 | 2019-03-15 | 四川格林流体控制设备有限公司 | A kind of safe bottom valve of LNG peculiar to vessel |
| CN112840149A (en) * | 2018-10-11 | 2021-05-25 | 纬湃技术有限公司 | Valve with a valve body |
-
2014
- 2014-05-05 CN CN201420226855.1U patent/CN203926853U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
| CN112840149A (en) * | 2018-10-11 | 2021-05-25 | 纬湃技术有限公司 | Valve with a valve body |
| US11578804B2 (en) | 2018-10-11 | 2023-02-14 | Vitesco Technologies GmbH | Valve |
| CN112840149B (en) * | 2018-10-11 | 2024-04-05 | 纬湃技术有限公司 | Valve |
| CN109469753A (en) * | 2018-12-07 | 2019-03-15 | 四川格林流体控制设备有限公司 | A kind of safe bottom valve of LNG peculiar to vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20180505 |