CN103574147A - Thermostatic valve and valve body assembly - Google Patents
Thermostatic valve and valve body assembly Download PDFInfo
- Publication number
- CN103574147A CN103574147A CN201210251745.6A CN201210251745A CN103574147A CN 103574147 A CN103574147 A CN 103574147A CN 201210251745 A CN201210251745 A CN 201210251745A CN 103574147 A CN103574147 A CN 103574147A
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- valve
- bellows
- valve rod
- press table
- valve body
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
- F16K1/482—Attaching valve members to screw-spindles with a collar on the spindle or a groove in the spindle, by which a fixing element is supported, the spindle reaching into 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses a thermostatic valve which can reliably work for a long time. The thermostatic valve comprises a valve body assembly and a temperature regulator; the valve body assembly comprises a valve body, valve core parts and a connecting part; the valve core parts are arranged at the regulating end of the valve body; the connecting part is connected with the outlet end of the valve body; a corrugated pipe in the valve core parts is in welding connection with an upper pressing plate and a lower pressing plate; a valve rod is in welding connection with the lower pressing plate; meanwhile the valve rod can axially move through an upper through hole of the upper pressing plate. According to the thermostatic valve, the outward leakage of a medium in the valve is eliminated, the high temperature and pressure can be born, meanwhile the service life is long, and the application range of the thermostatic valve is extended.
Description
Technical field
The present invention relates to HVAC control technique field, concrete, relate to heat supply thermostatic valve.
Background technique
The thermostatic valve that existing HVAC control technique field is used, when room temperature variation need to be adjusted the flow of valve, general is all that the action of frequently doing opening and closing by the flap on duct thermostat band ovable valve stem realizes, in addition in order to prevent in valve that medium is to external leakage, a plurality of seal rings have structurally been adopted, the material of seal ring mostly is rubber, thus in actual use valve rod when knee-action seal ring because of and the frequent friction of valve rod easily produce wearing and tearing.After using in the long period, while particularly using under higher temperature state, the easy ageing failure of rubber ring, causes the interior medium of valve to external leakage.So change spool and rubber seal, become a maintenance work routinely, generally all will carry out once every year.
The thermostatic valve of the prior art as shown in accompanying drawing 9 and accompanying drawing 10, in order to prevent that in valve, medium, to external leakage, is structurally provided with a plurality of seal rings.For the valve rod solving in thermostatic valve spool should be made the problem that axial motion guarantees sealing again, be provided with seal ring 27,28, in addition in order to solve the sealing between valve body adjustable side and spool, be provided with seal ring 29,30, for guaranteeing the sealing between valve outlet port end and joint, also adopted a seal ring 31 herein.Be arranged on two seal rings the 27, the 28th on valve rod, motive sealing, can produce friction due to the knee-action of valve rod between seal ring 27,28 and valve rod, in using process, can easily lose efficacy owing to often rubbing.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the defect of above prior art, provides a kind of and can bear higher temperature and pressure, again the thermostatic valve of reliably working and valve component thereof for a long time.
Technological scheme of the present invention is, a kind of thermostatic valve is provided, comprise valve component and be equipped with temperature sensing material with temperature sensor the duct thermostat with control valve aperture, valve component comprises valve body, described valve body comprises entrance point, outlet end, adjustable side and the valve port relative with described adjustable side, described valve port is for import and outlet described in conducting, it is characterized in that, described valve component also comprises the valve hole part that is arranged on described valve body adjustable side valve pocket, described valve hole part comprises valve rod, top board, bellows, press table and flap, the relatively described valve port setting of flap, described valve body adjustable side is fixedly connected with valve hole part, top board in described valve hole part is fixedly connected with the two ends of described bellows respectively with press table, described press table is fixedly connected with described valve rod, described top board is provided with through hole, described valve rod also can move axially through described upper through hole in upper through hole, between the inner chamber of described bellows and described valve pocket by the isolated sealing of described valve hole part.
Preferably, described bellows comprises fixed end and free end, the fixed end of described bellows and top board are by being welded to connect, the free end of described bellows and press table are by being welded to connect, when described thermostatic valve action, the free end of described bellows and press table move along with valve rod action under the drive of described valve rod, bellows.Adopt welding means, join strength and sealing between bellows and upper press table all can be guaranteed simultaneously.
Preferably, on described press table, be provided with lower through-hole, described valve rod through the lower through-hole of described press table and with described press table by welded joints seal, described flap is fixed on described valve rod and along with valve rod moves and moves.Adopt welding herein, can guarantee that in valve, medium does not leak from the gap between valve rod and press table, can keep the accurate location between valve rod and press table simultaneously.
Further, described valve rod is also provided with split washer between described flap and described press table, between described flap and described valve port, be also provided with spelling cap, spell cap and be fixedly connected with described valve rod, the axial position of described flap on valve rod fixed by described split washer, spelling cap.
Further, at valve rod axial position, between described flap and described split washer, be also provided with interstage sleeve, described interstage sleeve, split washer are fixed on described valve rod and along with valve rod action and move, and the axial position of described flap on valve rod fixed by described split washer, interstage sleeve, spelling cap.
Preferably, the Placement of described valve hole part and valve body adjustable side is to be welded to connect, the adjustable side port of described valve body is provided with an inside location stepped counterbore, the top board of described valve hole part matches with stepped counterbore, described top board or part described stepped counterbore and and the adjustable side port of described valve body between by being welded and fixed.The Sealing that this mode has been given up other Placement needs incidental leakage when having avoided general Placement to be connected.
Preferably, described valve component also comprises link, described link matches with the outlet end of described valve body, link comprises union and attaching nut, attaching nut is threaded with the outlet end of described valve body, valve outlet end has the taper coordinating with union or a spherical seal surface, and accordingly, there is spherical seal surface or the conical seal (contact) face matching with the sealing surface of valve outlet end union one end.Reliable sealing when this sealing surface can guarantee to be connected between valve body and joint.
Further, the Placement of described valve hole part and valve body adjustable side is to be threaded, the adjustable side port of described valve body is provided with internal thread or outside thread, the top board of described valve hole part is provided with corresponding outside thread or internal thread, seals or by corresponding sealing surface fitted seal is set between described valve hole part and valve body adjustable side by seal ring.
The present invention program provides a kind of valve component simultaneously, valve component comprises valve body, described valve body comprises entrance point, outlet end, adjustable side and the valve port relative with described adjustable side, described valve port is for import and outlet described in conducting, it is characterized in that, described valve component also comprises the valve hole part that is arranged on described valve body adjustable side valve pocket, described valve hole part comprises valve rod, top board, bellows, press table and flap, the relatively described valve port setting of flap, described valve body adjustable side is fixedly connected with valve hole part, top board in described valve hole part is fixedly connected with the two ends of described bellows respectively with press table, described press table is fixedly connected with described valve rod, described top board is provided with through hole, described valve rod also can move axially through described upper through hole in upper through hole, between the inner chamber of described bellows and described valve pocket by the isolated sealing of described valve hole part.
Preferably, described bellows comprises fixed end and free end, the fixed end of described bellows and top board are by being welded to connect, the free end of described bellows and press table are by being welded to connect, when described thermostatic valve action, the free end of described bellows and press table move along with valve rod action under the drive of described valve rod, bellows, on described press table, be provided with lower through-hole, described valve rod through the lower through-hole of described press table and with described press table by welded joints seal, described flap is fixed on described valve rod and along with valve rod moves and moves.
Compared with prior art, the present invention has abandoned the form that the rubber ring of available technology adopting carries out motive sealing completely, with metal bellows, substituted the rubber seal that the motive sealing of valve rod position adopts, avoid rubber seal due to long-term use and under the condition of high temperature aging lost efficacy possible, the medium that can stop in valve body leaks to outside.Extend the working life of valve, because metal bellows can adapt to the occasion of High Temperature High Pressure, so the use field of also having widened thermostatic valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of valve component part of the thermostatic valve of the first mode of execution of the present invention;
Fig. 2 is the structural representation of valve body shown in Fig. 1;
Fig. 3 is the structural representation of link shown in Fig. 1;
Fig. 4 is the structural representation of valve hole part shown in Fig. 1;
Fig. 5 is the schematic diagram of the weld assembly of spool shown in Fig. 4;
Fig. 6 is the cross-sectional schematic after the valve component of the first mode of execution thermostatic valve of the present invention is connected with duct thermostat;
Fig. 7 is the structural representation of valve component part of the thermostatic valve of the second mode of execution of the present invention;
Fig. 8 is the structural representation of valve component part of the thermostatic valve of the third mode of execution of the present invention;
Fig. 9 is a kind of overall schematic of prior art thermostatic valve;
Figure 10 is a kind of structural representation of prior art constant temperature valve body assembly.
Embodiment
In the first mode of execution of the present invention, valve hole part has adopted and the diverse mode of prior art, by a metal bellows and upper press table, combined, be welded into a chamber, by between valve rod and press table, with welding manner, be fixedly connected with simultaneously, between valve hole part and valve body, also with welding manner, be fixedly connected with, adopt after these measures, blocked medium fluid in valve and leaked to outside.Valve opening and to close be the characteristic of expanding with heat and contract with cold of having utilized temperature sensing material in the intrinsic recovery characteristic of bellows and temperature-sensitive bag.Because whole valve component does not adopt conventional seals part, between bellows and valve rod, there is not the movable friction problem between valve rod of the prior art and seal ring yet, thereby heatproof, withstand voltage properties and the working life of thermostatic valve are all greatly improved.Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The first mode of execution of the present invention is as shown in Fig. 1 to Fig. 6, and Fig. 1 is the structural representation of constant temperature valve body assembly of the present invention, and Fig. 2 is the structural representation of valve body shown in Fig. 1; Fig. 3 is the joint schematic diagram shown in Fig. 1; Fig. 4 is the structural representation of the valve hole part shown in Fig. 1; Fig. 5 is the structural representation of the bellows-welding assembly shown in Fig. 4, i.e. the schematic diagram of bellows 15 and top board 14, press table 16 weld assemblies; Fig. 6 is the sectional structure schematic diagram of the thermostatic valve of the first mode of execution of the present invention, i.e. the sectional structure schematic diagram of valve component shown in Fig. 1 after being connected with duct thermostat.
Valve component has comprised valve body 2, valve hole part 1 and link 3, and valve body 2 is provided with the entrance point 7 entering for medium fluid; The outlet end 9 flowing out for medium fluid; For the adjustable side 5 that valve hole part 1 control valve port 6 flows are installed.When valve component and duct thermostat 25 are used in conjunction with, when the temperature-sensitive bag 26 in duct thermostat 25 is experienced higher temperature, temperature sensing material in temperature-sensitive bag 26 expands and makes duct thermostat 25 produce downward external force, overcome the elastic force of bellows 15, promote valve rod 13 and drive flap 19 to illustrate downward direction motion to valve closing direction, the aperture of thermostatic valve is diminished; And when temperature reduces, the temperature sensing material cooling aftershrinkage in temperature-sensitive bag 26, thermostatic valve, by the restoring force of bellows 15, makes valve rod 13 drive flap 19 to illustrate upward direction motion to valve opening direction, and the aperture of thermostatic valve is increased.
5 positions, adjustable side that are connected with valve hole part 1 on valve body 2 are provided with a step type counterbore 4, during for valve hole part 1 and valve body 2 assembling, accurately locate, to guarantee flap 19 aligned with port 6 on valve hole part 1, the outside thread of 5 outsides, adjustable side is for being connected and fixed with the internal thread of duct thermostat 25.Valve port 6 is below adjustable side 5, and adjustable side 5 stepped counterbore 4 almost coaxials, makes the flap 19 on valve rod 13 accurately control rate-of flow in thermostatic valve.The entrance point 7 of valve body 2 is provided with internal thread for being connected with exterior line, outlet end 9 has outside thread to be connected with the nut 10 on link 3, inside is useful on union 11 and firmly contacts circular arc or the cone type sealing surface 8 of sealing, prevents that in valve, medium fluid is passed through herein to external leakage.
Valve hole part 1 part stretches into and is arranged on valve body adjustable side 5 by stepped counterbore 4, and top board 14 and the valve body adjustable side 5 of valve hole part 1 are welded to connect and are integral.Valve hole part 1 comprises valve rod 13, top board 14, bellows 15, press table 16, split washer 17, interstage sleeve 18, flap 19, spells cap 20, there is respectively upper through hole 21 and the lower through-hole 22 coordinating with valve rod 13 diameters at top board 14 and press table 16 centers, can in upper through hole 21 and lower through-hole 22, pass for valve rod 13, wherein valve rod 13 is Spielpassung with upper through hole 21, and valve rod 13 can freely pass through upper through hole 21, the two ends of bellows 15 are welded into a coaxial cavity with top board 14 and press table 16 respectively, the one end of welding with top board 14 is fixed end 23, the one end of welding with press table 16 is free end 24, valve rod 13 is through in the upper through hole 21 at top board 14 centers and the lower through-hole 22 at press table 16 centers, valve rod 13 is welded to connect and seals with press table 16, like this, valve hole part 1 is by valve rod 13, top board 14, press table 16, bellows 15 is separated into two parts, the inner chamber 151 of bellows 15 and the welding with press table 16 by valve rod 13 of the valve pocket 161 of valve component, the welding of bellows 15 and press table 16 and top board 14, top board 14 is separated with the welding of valve body 2, and need not by a plurality of O RunddichtringOs, seal again.Here the critical piece of realizing valve rod 13 axial motions maintenance and outside seal is bellows 15 and top board 14, press table 16, valve rod 13 and valve body 2.Because the material of bellows 15 can adopt Cuprum alloy, stainless steel and other metal materials, have can axial stretching mobility and higher pressure high-temp resistant performance simultaneously, just having avoided completely in existing structure is to adopt motive sealing by sealing between O RunddichtringO and valve rod, in valve rod knee-action process, easily cause the problem that seal ring damages, also no longer include easily aging problem.When valve rod 13 tops are subject to downward power, can drive press table 16 to do axial motion in the upper through hole 21 at top board 14 centers.
During concrete installation, the bottom of valve rod 13 is processed with groove that can construction opening back-up ring 17, can first pack split washer 17 into, the interstage sleeve 18He center flap 19 with holes that the center that reinstalls is with holes, the upper-end surface of interstage sleeve 18 and flap 19 just can be positioned on valve rod 13 like this, the lower end surface of flap 19 is spelled cap 20 with one and is connected with valve rod 13, and flap 19 is fixed on valve rod 13.When valve rod 13 drives flap 19 to do axial motion, owing to there being the buffer action of bellows 15, medium fluid in valve can't be by valve rod 13 and top board 14 centers the position, gap in hole outwards leak, equally, because the top board 14 of valve hole part 1 and stepped counterbore 4 positions of valve body adjustable side 5 are that sealing is welded to connect, this position equally can not produce outside leakage yet.Split washer 17 also can be installed after installing interstage sleeve 18 and flap 19 again in addition.
Fig. 5 is the schematic diagram of the bellows 15 shown in Fig. 4 and top board 14, press table 16 weld assemblies, and welding as described herein is the welding of proof strength and sealing simultaneously.
The welding that the present embodiment is related; as long as can guarantee that the welding manner of weld strength and soldered parts sealing all can adopt; for example tin, silver, copper one class material are done the soldering of solder, or the melting welding of the mode such as carbon dioxide gas arc welding, argon arc welding, laser beam welding.Generally, the welding between bellows and top board, press table adopts soldering, and between valve body and spool, the welding between valve rod and press table adopts melting welding.
This valve component and duct thermostat 25 are used in conjunction with, duct thermostat 25 is arranged on 5 tops, adjustable side of valve body 2, duct thermostat 25 can be fixed on the adjustable side 5 of valve body 2 with screw thread particularly, the temperature-sensitive bag 26 of duct thermostat 25 and valve rod 13 are arranged on same axis, the bottom of temperature-sensitive bag 26 directly contacts with valve rod 13 tops, when extraneous variation of ambient temperature, temperature-sensitive bag 26 expands or shrinks and produces an axial displacement, be with ovable valve stem 13 to do axial elevating movement together with bellows 15, be arranged on flap 19 on valve rod 13 with the aperture between valve rod 13 elevating controls and valve port 6, reach the object of rate-of flow in control valve.Its working principle is:
When ambient temperature raises, medium in temperature-sensitive bag 26 in duct thermostat 25 is because of expanded by heating, make temperature-sensitive bag 26 produce one and axially increasing length and downward displacement, the power F1 of temperature-sensitive bag 26 lower ends passes to valve rod 13 tops that contact with temperature-sensitive bag 26, promote valve rod 13 and move downward, the flap 19 on valve rod 13 to valve closing direction motion, reduces the distance of 6 of flap 19 and valve ports with valve rod 13, thereby valve port 6 circulation areas are reduced, and the medium fluid by valve port 6 reduces.Simultaneously, because valve rod 13 and press table 16 are to be fixed together, valve rod 13 drives press table 16 to move downward when moving downward, and the free end 24 of bellows 15 welds together with press table 16, so the free end 24 of bellows 15 also moves downward simultaneously, but the fixed end 23 of bellows 15 welds together with top board 14, top board 14 is fixed on the adjustable side 5 of valve body 2 and cannot moves, so bellows 15 is drawn and extends.
When ambient temperature reduces, medium in temperature-sensitive bag 26 in duct thermostat 25 is because of the contraction of catching a cold, make temperature-sensitive bag 26 produce one in the displacement axially reducing, while raising due to temperature, bellows 15 is stretched and length increase, bellows 15 now self has a contraction to be returned to the elastic force F2 of free state, this force direction is for making progress, when bellows 15 shrinks, the free end being connected with press table 16 drives press table 16 to move to valve opening direction, because valve rod 13 is to link together with press table 16, press table 16 band ovable valve stems 13 move upward, flap 19 on valve rod 13 moves to valve opening direction with valve rod 13, the distance of 6 of flap 19 and valve ports is increased, thereby valve port 6 circulation areas are increased, medium fluid by valve port 6 increases.
Introduce the second mode of execution of the present invention below, the second mode of execution of the present invention as shown in Figure 7.The main distinction of itself and the first mode of execution is that the mounting type of valve hole part and valve body is by the seal ring sealing between valve hole part 1 and valve body adjustable side 5, between valve hole part 2 and valve body adjustable side 5, be threaded connection, seal ring 28 can adopt the rubber-like seal ring of O type, also can adopt the soft metal seal ring of ring.
Particularly, valve hole part 1 is arranged on 5 tops, valve body adjustable side, and between 5 inwalls of valve body adjustable side, be equipped with one for the seal ring 28 of static seal, on valve hole part 2, be processed with the groove 27 of an installation seal ring, on top board 14, be processed with outside thread simultaneously the internal thread on valve hole part 1 and valve body adjustable side 5 is connected and fixed.Valve hole part 1 comprises valve rod 13, top board 14, bellows 15, press table 16, split washer 17, interstage sleeve 18, flap 19, spells cap 20, there is respectively upper through hole 21 and the lower through-hole 22 coordinating with valve rod 13 diameters at top board 14 and press table 16 centers, can in upper through hole 21 and lower through-hole 22, pass for valve rod 13, wherein valve rod 13 is Spielpassung with upper through hole 21, and valve rod 13 can freely pass through upper through hole 21; The two ends of bellows 15 are welded into a coaxial cavity with top board 14 and press table 16 respectively, the one end of welding with top board 14 is fixed end 23, the one end of welding with press table 16 is free end 24, valve rod 13 is through in the upper through hole 21 at top board 14 centers and the lower through-hole 22 at press table 16 centers, valve rod 13 is welded to connect with press table 16, when valve rod 13 tops are subject to external force, can drive press table 16 to do axial motion in the through hole 21 at top board 14 centers.The bottom of valve rod 13 is processed with groove that can construction opening back-up ring 17, pack split washer 17 into, the interstage sleeve 18He center flap 19 with holes that the center that reinstalls is with holes, the upper-end surface of interstage sleeve 18 and flap 19 just can be positioned on valve rod 13 like this, the lower end surface of flap 19 is spelled cap 20 with one and is connected with valve rod 13, and flap 19 is fixed on valve rod 13.When valve rod 13 drives flap 19 to do axial motion, owing to there being the buffer action of bellows 15, medium fluid in valve can't be by valve rod 13 and top board 14 centers the position, gap of upper through hole outwards leak, equally, because top board 14 and 5 inner sides, valve body adjustable side of valve hole part 1 are provided with seal ring 28, screw thread on valve hole part 1 is fixed on top board 14 on valve body adjustable side 5, and due to the seal action of seal ring 28, this position equally can not produce outside leakage yet.
On the outlet end 9 of valve body, there is a conical surface counterbore 29, in union 11, have one for the step 30 of seal ring is installed, between union 11 and valve outlet end 9 conical surface counterbores 29, a taper static sealing ring 31 is also set, with nut 10, the outside thread of union 11 and valve outlet end 9 is connected and fixed, prevents that medium fluid in valve is from leaking to outside here.
Here said seal ring can be used rubber material, also can use the materials such as siliceous, fluorine that can bear higher temperature, can also adopt in addition the soft metal materials such as red copper to make.And seal ring can also adopt other form structure, as ring, O shape etc., as long as make form fit valve body, the joint geometry of seal ring, and easy to assembly.
The third mode of execution of the present invention as shown in Figure 8.
Valve hole part 1 is arranged on 5 tops, valve body adjustable side, on valve body adjustable side 5, be processed with a counterbore 33, between top board 14 lower end surfaces 34 of valve hole part 1 and counterbore 33 bottoms, valve body adjustable side, a gasket seal 32 for static seal is housed, on valve hole part 1, is processed with outside thread the internal thread on valve hole part 1 and valve body adjustable side 5 is connected and fixed.Due to gasket seal 32 seal action that distortion produces under extruding, this position just can not produce to outside leakage.
The difference of second, third mode of execution and the first mode of execution, to change the static seal position of the first mode of execution into seal ring or gasket seal sealing, its benefit is can reduce because bellows 15 and flap 19 may cause the maintenance difficult of bringing while damaging in long-time using process, the maintenance operation and reduce user cost of being more convenient for.In addition, in mode of execution recited above, flap carries out axially locating by spelling cap, interstage sleeve, main is like this easy to connect, but the present invention is not limited to this, also can pass through alternate manner axially locating, as by crimping mode or below, a back-up ring etc. being set too, be just not described in detail here.
The sealing means adopting due to valve component of the present invention is different from the sealing means of prior art, therefore valve component of the present invention and duct thermostat are used in conjunction with, being equally applicable to other, need to utilize variation of ambient temperature to carry out medium fluid in rate-of flow changes in control valve occasion, particularly valve be the occasion at elevated pressures or higher temperature.
Further, this valve component is also applicable to provide signal by temperature transducer, pressure transducer, with other power source, promotes the occasion that valve rod opens and closes, for example pulsed stepper motor.
Finally should be noted that: above embodiment is only for illustrating the present invention and unrestricted technological scheme described in the invention, and the upper inferior noun of locality described in literary composition is the corresponding orientation of accompanying drawing.Therefore, although this specification has been described in detail the present invention with reference to the above embodiments,, those of ordinary skill in the art should be appreciated that inventor herein still can modify or be equal to replacement the present invention; And all do not depart from technological scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed within the scope of claim of the present invention.
Claims (10)
1. a thermostatic valve, comprise valve component and be equipped with temperature sensing material with temperature sensor the duct thermostat with control valve aperture, valve component comprises valve body, described valve body comprises entrance point, outlet end, adjustable side and the valve port relative with described adjustable side, described valve port is for import and outlet described in conducting, it is characterized in that, described valve component also comprises the valve hole part that is arranged on described valve body adjustable side valve pocket, described valve hole part comprises valve rod, top board, bellows, press table and flap, the relatively described valve port setting of flap, the top board of described valve body adjustable side and valve hole part is fixedly connected with, top board in described valve hole part is fixedly connected with the two ends of described bellows respectively with press table, described press table is fixedly connected with described valve rod, described top board is provided with through hole, described valve rod also can move axially through described upper through hole in upper through hole, between the inner chamber of described bellows and described valve pocket by the isolated sealing of described valve hole part.
2. thermostatic valve according to claim 1, it is characterized in that: described bellows comprises fixed end and free end, the fixed end of described bellows and top board are by being welded to connect, the free end of described bellows and press table are by being welded to connect, when described thermostatic valve action, the free end of described bellows and press table move along with valve rod action under the drive of described valve rod, bellows.
3. thermostatic valve according to claim 2, it is characterized in that: on described press table, be provided with lower through-hole, described valve rod through the lower through-hole of described press table and with described press table by welded joints seal, described flap is fixed on described valve rod and along with valve rod moves and moves.
4. thermostatic valve according to claim 3, it is characterized in that: described valve rod is also provided with split washer between described flap and described press table, between described flap and described valve port, be also provided with spelling cap, spell cap and be fixedly connected with described valve rod, the axial position of described flap on valve rod fixed by described split washer, spelling cap.
5. thermostatic valve according to claim 4, it is characterized in that: at valve rod axial position, between described flap and described split washer, be also provided with interstage sleeve, described interstage sleeve, split washer are fixed on described valve rod and along with valve rod action and move, and the axial position of described flap on valve rod fixed by described split washer, interstage sleeve, spelling cap.
6. according to claim 1-5 arbitrary described thermostatic valve wherein, it is characterized in that: the Placement of described valve hole part and valve body adjustable side is to be welded to connect, the adjustable side port of described valve body is provided with an inside location stepped counterbore, the top board of described valve hole part matches with stepped counterbore, described top board or part described stepped counterbore and and the adjustable side port of described valve body between by being welded and fixed.
7. according to claim 1-5 arbitrary described thermostatic valve wherein, it is characterized in that: described valve component also comprises link, described link matches with the outlet end of described valve body, link comprises union and attaching nut, attaching nut is threaded with the outlet end of described valve body, valve outlet end has the conical seal (contact) face coordinating with union or a spherical seal surface, and accordingly, there is spherical seal surface or the conical seal (contact) face matching with the sealing surface of valve outlet end union one end.
8. according to claim 1-5 arbitrary described thermostatic valve wherein, it is characterized in that: the Placement of described valve hole part and valve body adjustable side is to be threaded, the adjustable side port of described valve body is provided with internal thread or outside thread, the top board of described valve hole part is provided with corresponding outside thread or internal thread, seals or by corresponding sealing surface fitted seal is set between described valve hole part and valve body adjustable side by seal ring.
9. a valve component, valve component comprises valve body, described valve body comprises entrance point, outlet end, adjustable side and the valve port relative with described adjustable side, described valve port is for import and outlet described in conducting, it is characterized in that, described valve component also comprises the valve hole part that is arranged on described valve body adjustable side valve pocket, described valve hole part comprises valve rod, top board, bellows, press table and flap, the relatively described valve port setting of flap, described valve body adjustable side is fixedly connected with valve hole part, top board in described valve hole part is fixedly connected with the two ends of described bellows respectively with press table, described press table is fixedly connected with described valve rod, described top board is provided with through hole, described valve rod also can move axially through described upper through hole in upper through hole, between the inner chamber of described bellows and described valve pocket by the isolated sealing of described valve hole part.
10. valve component according to claim 9, it is characterized in that: described bellows comprises fixed end and free end, the fixed end of described bellows and top board are by being welded to connect, the free end of described bellows and press table are by being welded to connect, when described thermostatic valve action, the free end of described bellows and press table are at described valve rod, under the drive of bellows, along with valve rod action, move, on described press table, be provided with lower through-hole, described valve rod through the lower through-hole of described press table and with described press table by welded joints seal, described flap is fixed on described valve rod and along with valve rod action and moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251745.6A CN103574147A (en) | 2012-07-20 | 2012-07-20 | Thermostatic valve and valve body assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251745.6A CN103574147A (en) | 2012-07-20 | 2012-07-20 | Thermostatic valve and valve body assembly |
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| Publication Number | Publication Date |
|---|---|
| CN103574147A true CN103574147A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210251745.6A Pending CN103574147A (en) | 2012-07-20 | 2012-07-20 | Thermostatic valve and valve body assembly |
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| CN (1) | CN103574147A (en) |
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| CN108113108A (en) * | 2017-12-27 | 2018-06-05 | 温州职业技术学院 | A kind of multifunctional temperature control footwear based on mechanical temperature-control switch |
| CN109060188A (en) * | 2018-05-19 | 2018-12-21 | 上饶市欧德环保有限公司 | A kind of temperature sensitization apparatus performance test machine |
| CN109695723A (en) * | 2019-01-03 | 2019-04-30 | 浙江鑫帆暖通智控股份有限公司 | A kind of thermostat valve design method with bellows |
| CN111913505A (en) * | 2019-05-08 | 2020-11-10 | 浙江三花制冷集团有限公司 | Pressure driving device, manufacturing method thereof and pressure controller using pressure driving device |
| CN114830059A (en) * | 2019-11-13 | 2022-07-29 | 韦内特公司 | Thermostatic device for regulating fluid circulation, thermostatic valve adapted to such a device, and method for manufacturing such a thermostatic device |
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| CN108113108A (en) * | 2017-12-27 | 2018-06-05 | 温州职业技术学院 | A kind of multifunctional temperature control footwear based on mechanical temperature-control switch |
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| CN111913505A (en) * | 2019-05-08 | 2020-11-10 | 浙江三花制冷集团有限公司 | Pressure driving device, manufacturing method thereof and pressure controller using pressure driving device |
| CN111913505B (en) * | 2019-05-08 | 2024-03-22 | 浙江三花商用制冷有限公司 | Pressure driving device, manufacturing method thereof and pressure controller using pressure driving device |
| CN114830059A (en) * | 2019-11-13 | 2022-07-29 | 韦内特公司 | Thermostatic device for regulating fluid circulation, thermostatic valve adapted to such a device, and method for manufacturing such a thermostatic device |
| CN114830059B (en) * | 2019-11-13 | 2023-12-01 | 韦内特公司 | Constant temperature device for regulating fluid circulation, constant temperature valve adapted to constant temperature device, and manufacturing method of constant temperature device |
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Application publication date: 20140212 |