CN203230878U - Adjustable jet injection valve - Google Patents

Abstract

The utility model discloses an adjustable jet injection valve which comprises a valve body, a nozzle, a needle and a throat pipe. A cold water port, a hot water port and a mixed water port are formed in the valve body, and the mixed water port is used for outputting mixed water; the nozzle is arranged in the valve body and is provided with a nozzle cold water inlet and a nozzle cold water outlet, and the nozzle cold water inlet is communicated with a cold water channel of the valve via the cold water port; the needle can be assembled inside the nozzle, the needle and an inner cavity of the nozzle form cold water inflow space, and the needle and the nozzle cold water outlet form a cold water jet injection outlet; the throat pipe is connected to the mixed water port of the valve body and is used for guiding the mixed water to mixed water utilizing equipment; the needle is fixed in the axial direction of the adjustable jet injection valve, the nozzle is movable in the axial direction of the adjustable jet injection valve, and the cold water inflow space, the hot water port and the cold water jet injection outlet can be simultaneously adjusted by means of axially adjusting the nozzle. The adjustable jet injection valve has the advantages that the adjustable jet injection valve is good in jet injection effect, can be used conveniently and quickly, and is not easy to malfunction.

Description

Adjustable fluid valve

Technical field

The utility model relates to the fluidic device field for water supply equipment, particularly, relates to a kind of adjustable fluid valve for the mixing of solar water heater hot and cold water.

Background technique

At present, fluidic device commonly used in the solar water heater is applicable to high-pressure system, adopts dual mode that pressure is provided usually:

A kind of is to place the roof to rely on the gravity drop to provide pressure for hot water water heater, but in a single day it is less the gravity drop to occur under this kind set-up mode, the pressure feed deficiency will appear, the hot water effluent measures less problem, cause people's water temperature when bathing lower, the body sense is uncomfortable, in addition, hot and cold water pressure has big difference under this kind set-up mode, is easy to generate the problem of adverse current;

Another is to provide pressure by pressure unit is set in water heater for hot water supply, this kind set-up mode has solved the problem of heat hydraulic pressure's undersupply to a certain extent, but owing to added pressure unit and water heater is necessary for pressure-bearing device, this kind set-up mode has improved cost of production on the basis of the above greatly, is unfavorable for producing in enormous quantities.

In order to solve in the prior art fluidic device heat hydraulic pressure undersupply and the too high problem of pressure unit cost to be set, Chinese patent literature CN102767210A discloses the adjustable fluidic device of a kind of multi-water resources, the adjustable fluidic device of this multi-water resources comprises the liquid jetting device main body, the fluid operating chamber, nozzle needle, trunnion, diffusing tube, liquid jetting device water inlet (cooling water inlet), sucked liquid water inlet (hot water inlet), the fluid operating chamber is arranged in the liquid jetting device main body, front end in the fluid operating chamber is provided with nozzle, and nozzle needle is arranged on the elongation line of fluid operating chamber inner nozzle center line.High-pressure cold water enters liquid jetting device by the liquid jetting device water inlet, arrive nozzle through the fluid operating chamber, inject in the trunnion at a high speed along the nozzle needle needle point, utilization is entrainmented to act on and is formed negative pressure in the trunnion, the water inlet of hot water that is connected with trunnion there is pumping action, the prior art utilizes principle that effect is entrainmented in high-speed jet to solve the problem of the hot water supply underpressure of non-pressure-bearing type hot water supply apparatus, realized that high-speed jet promotes the energy of low speed sucked liquid, increased the whole pressure energy of device, but found that in use there is following problem in the prior art:

In the prior art, spacing is fixed between nozzle and the trunnion, formation hot water enters the opening in the trunnion, namely no matter under which kind of situation, always mix a certain proportion of hot water therein in the water outlet of trunnion, under this kind situation, the water-exit temperature of trunnion is to reach the temperature that is equal to cold water, can feel when using summer that especially water temperature is scalded and can't be transferred under.

In view of the foregoing, Chinese patent literature CN102086941B discloses a kind of water-mixing valve, and it comprises valve body, valve body hot water inlet, valve body water outlet, also comprise a nozzle that is connected with described valve body cooling water inlet, described nozzle is provided with nozzle cooling water inlet and nozzle cooling water outlet; Be provided with the hot water that links to each other with described valve body hot water inlet in the described valve body and regulate the chamber, and the mixed water cavity that links to each other with described valve body water outlet, described mixed water cavity is regulated the chamber with described hot water and is linked to each other by the valve body hot water outlet that is positioned at hot water adjusting chamber one end, and mixed water cavity also links to each other by the nozzle cooling water outlet with described nozzle; When needs are adjusted hot water flow, can or screw out nozzle to precession in the valve body, reduce or increase the sectional area of hot water outlet, thereby reduce hot water flow; When needing to adjust the cold water flow, then only need precession or screw out needle-valve to get final product with the water outlet sectional area of adjusting nozzle.The prior art has solved the problem of always mixing a certain proportion of hot water in the water outlet of trunnion among the Chinese patent literature CN102767210A, improved the body sense comfort level that the user used in summer, but found that in use still there are some problems in the prior art:

1, in the prior art, the user is in order to obtain the cold and hot mixing water than preference temperature, need regulate and control nozzle and needle-valve respectively comes hot water inflow and cold water inflow are regulated, regulate and control two valves simultaneously and come the temperature of mixing water is regulated and the user is often difficult when bathing, and this kind control methods complexity is easily made mistakes, even, when user's syncretism water temperature higher, when the body sense is scalded, need the cold water inlet valve is transferred big, if but mistake is transferred the hot water inlet valve situation that may occur scalding when big.

2, in the prior art, described nozzle when the axial direction adjusted position of described adjustable fluid valve, the cold water pressure at the described nozzle cooling water inlet place on it all the time with described spool housing on the cold water pressure at described cold water outlet place be consistent.And in the prior art, when swivel nozzle, needle-valve and nozzle together move, in this process, relative movement does not take place in nozzle and needle-valve, thereby make the sectional area of cooling water outlet remain unchanged always, like this, when the sectional area of cooling water inlet during less than the sectional area of cooling water outlet, the hydraulic pressure of nozzle inner cold water will be very little, be difficult to realize jeting effect preferably, even can not produce jeting effect, and in order to guarantee jeting effect preferably, just need adjust needle-valve simultaneously, thereby the sectional area of cooling water outlet is reduced, and then require needle-valve and nozzle are regulated simultaneously, increased the use difficulty, then will not be difficult to guarantee water outlet effect preferably and higher comfort if do not adjust needle-valve and nozzle simultaneously, and in the utility model since the cold water pressure at described nozzle cooling water inlet place all the time with described spool housing on the cold water pressure at described cold water outlet place be consistent, it is bad or the problem of jeting effect can not take place above-mentioned jeting effect therefore can not occur.

3, in the prior art, problem with the common existence of above-mentioned Chinese patent literature CN102767210A: the nozzle needle that adopts in the prior art and the adjustable fluidic device of the disclosed a kind of multi-water resources of Chinese patent literature CN102767210A is all long fine texture, its head is needle-like, this kind set-up mode cost is lower, under by the less situation of the hydrodynamic pressure of nozzle, the nozzle needle of this kind elongated shape is less at the pressure that it bears in the radial direction, it can satisfy job requirement, but when the hydrodynamic pressure by nozzle more greatly or very big, and under the unsettled situation of rate of flow of fluid, nozzle needle will bear very big inhomogeneous radial pressure in the radial direction at it, namely along the length direction of nozzle needle, the radial pressure that different parts bears is with difference, thereby the spout that causes this nozzle needle and nozzle departs from or nozzle needle will radially wobble, and has influence on the jeting effect of nozzle.

The model utility content

For this reason, it is general that technical problem to be solved in the utility model is to overcome in the prior art adjustable fluid valve jet effect, and cold and hot mixed water temperature regulated the problem that complicated operation is easily made mistakes, thus provide a kind of jet respond well, and the adjustable fluid valve that is difficult for makeing mistakes easy to use.

Further provide under a kind of different pressures at fluid and the flow velocity can stable operation adjustable fluid valve.

For solving the problems of the technologies described above, the utility model is a kind of adjustable fluid valve, comprises valve body, and described valve body is provided with cold water outlet, hot water mouth and is used for the mixed mouth of a river of mixing water output; Nozzle is arranged in the described valve body, has nozzle cooling water inlet and the nozzle cooling water outlet that can be connected with the cold water channel of valve by described cold water outlet; Nozzle needle can be assemblied in described nozzle interior, goes into fluid space with the inner chamber formation cold water of described nozzle, forms the cold water injection outlet with described nozzle cooling water outlet; Trunnion, the described mixed mouth of a river that is connected in described valve body is located, and is used for mixing water is guided to mixing water use equipment; The fixed-site of described nozzle needle on the axial direction of described adjustable fluid valve is motionless, the position of described nozzle on the axial direction of described adjustable fluid valve is adjustable, can realize described cold water is gone into the adjusting of fluid space, hot water mouth and cold water injection outlet simultaneously by the described nozzle of axial adjustment.

Also comprise rotating component, wherein, the sealing of described rotating component is arranged in the described valve body rotationally, and is connected to drive described nozzle needle with described nozzle needle and rotates simultaneously; Described nozzle moves to axial with described rotating component and cooperates by moving axially regulation structure; Described valve body cooperates with described nozzle by the restriction rotational structure, when rotating to drive described nozzle needle at described rotating component, described nozzle does not rotate with respect to described valve body, but it can move with respect to the axial direction of described valve body along described nozzle needle under the effect of described mobile regulation structure.

Described move axially regulation structure comprise be molded over the internal thread on the described nozzle and be molded on the described rotating component and with the outside thread of described screw-internal thread fit, described internal thread and described externally threaded screw-thread fit stroke are not less than the described nozzle cooling water outlet of described nozzle to the distance of described trunnion.

Described restriction rotational structure is the polygonal end face that is formed on the described nozzle, and the inner wall shape of described valve body matches with described polygonal end face.

Described restriction rotational structure on the flange that circumferentially arranges in the end of described nozzle and the inwall at described valve body along axial direction setting and the guiding groove that is slidingly matched with described flange.

Described restriction rotational structure on the flange that arranges at the inwall of described valve body and the end at described nozzle along axial direction setting and the guiding groove that is slidingly matched with described flange.

The a pair of peripheral flange that extends radially outwardly is shaped between the nozzle cooling water inlet of described nozzle and the nozzle cooling water outlet, can be equipped with Sealing between the described peripheral flange, described nozzle the hot water section between described peripheral flange and described nozzle cooling water outlet can be connected with the hot water channel of valve.

Described trunnion is assemblied in the described valve body, is formed with the hot water mouth who communicates with hot water channel and described trunnion on the described valve body, and described trunnion has latus rectum pipeline section and expansion pipeline section.

The diameter of bore of described latus rectum pipeline section is 5mm-14mm, and the length of described latus rectum pipeline section is 5-8 times of its diameter of bore, and the expansion angle of described expansion pipeline section is 5 °-15 °.

The diameter of the nozzle cooling water outlet of described nozzle is 3mm-10mm.

Described nozzle needle comprises nozzle needle main body and the tapered portion that is arranged on described nozzle needle body end and matches with the nozzle cooling water outlet of described nozzle, described nozzle needle main body circumferentially is provided with support, with when described nozzle needle is assemblied in the nozzle, the outer surface of described support cooperates with spacing to described nozzle needle main body with the inner chamber of described nozzle, forms the fluid passage between described support.

Described support comprises around described nozzle needle main body circumferentially uniform and extend a plurality of fins that arrange along its axial direction, and described a plurality of fins form described fluid passage each other.

Described fin comprises first convex rib and second convex rib, the radial dimension of described first convex rib is less than the radial dimension of described second convex rib, the length value of described first convex rib and described second convex rib is that the outer surface of described second convex rib cooperates with the inner chamber of described nozzle.

Described fin is three or four or five or six, and the water cross section excessively of the described fluid passage that described a plurality of fins form each other is greater than the cross section of the described nozzle cooling water outlet of described nozzle

The supercharging that has between the described support of described nozzle needle main body and the described tapered portion mixes the water section, and this supercharging mixes the cylindrical shape that is shaped as of water section.

The diameter that described supercharging mixes the water section greater than, equal or be slightly less than the diameter of the nozzle of described nozzle;

The diameter of described tapered portion dwindles to front end from its root, and its length is less than or equal to the removable stroke of described nozzle.

The diameter of the described tapered portion of described nozzle needle dwindles to the front end LINEAR CONTINUOUS from its root.

Described nozzle is when the axial direction adjusted position of described fluid valve, and the described nozzle cooling water inlet on it is corresponding with the described cold water outlet on the described valve body all the time.

Technique scheme of the present utility model has the following advantages compared to existing technology:

1, in the utility model, the fixed-site of described nozzle needle on the axial direction of described adjustable fluid valve is motionless, the position of described nozzle on the axial direction of described adjustable fluid valve is adjustable, can realize simultaneously described cold water is gone into fluid space by the described nozzle of axial adjustment, the adjusting of hot water mouth and cold water injection outlet, this kind set-up mode has overcome that adjustable fluid valve of the prior art need be regulated nozzle respectively and nozzle needle could be realized hot water inflow and cold water inflow are regulated, solved the problem that the prior art complicated operation is easily made mistakes, only realized to realize adjusting to hot water inflow and cold water inflow by regulating nozzle axial displacement, and simple to operate being difficult for makes mistakes.

2, in the utility model, described nozzle needle is arranged in the described nozzle, between described nozzle and described nozzle needle, form cold water and go into fluid space and cold water injection outlet, described nozzle cooling water inlet is gone into fluid space with described cold water outlet and cold water respectively and is communicated with, in use, as long as the adjustment nozzle moves its axial direction along described adjustable fluid valve and can realize cold water is gone into fluid space, the adjusting of hot water mouth and cold water injection outlet, be specially: when nozzle moves when making cold water injection outlet diminish, it is big that the hot water mouth becomes, thereby realize adjustment to water-mixing temperature with shirtsleeve operation comparatively, what is more important, in the utility model, described cold water outlet equates with the pressure of described cold water injection outlet all the time, this kind set-up mode has guaranteed that cold water that cold water outlet flows to hour, cold water goes into fluid space and the cold water injection mouth still can keep higher hydraulic pressure, thereby have jeting effect preferably.Therefore, the technical solution of the utility model has realized jeting effect preferably in comparatively shirtsleeve operation mode.

3, in the utility model, also comprise rotating component, described rotating component sealing is arranged in the described valve body rotationally, and be connected to drive described nozzle needle with described nozzle needle and rotate simultaneously, described rotating component can be selected to compare comparatively cheap material with described nozzle needle and make, and this kind structure has reduced the cost of production of the adjustable fluid valve of the utility model.

4, in the utility model, described move axially regulation structure be molded over the internal thread on the described nozzle and be molded on the described rotating component and with the outside thread of described screw-internal thread fit, because described rotating component can not move along the axial direction of described adjustable fluid valve, described nozzle of while is restricted the restriction of rotational structure and can not rotates with respect to described valve body, therefore, when described rotating component rotates, screw-internal thread fit on its outside thread and the described nozzle is so that described nozzle moves along the axial direction of described adjustable fluid valve, and this kind set-up mode is simple in structure, processing easy for installation and easy.

5, in the utility model, described restriction rotational structure is the polygonal end face that is formed on the described nozzle, and the inner wall shape of described valve body matches with described polygonal end face, and this kind arranges simple in structure, easily processing and reliable operation.

6, in the utility model, described trunnion has latus rectum pipeline section and expansion pipeline section, the cold water that penetrates forms negative pressure at described latus rectum pipeline section at a high speed, effect is entrainmented in formation, hot water is pumped in the latus rectum pipeline by described hot water mouth and mixes and the energy transmission with cold water, the flow velocity of mixing water is still very high, kinetic energy is very big, and a part of kinetic energy of the mixing water that is arranged so that high velocity jet of expansion pipeline section is converted into pressure energy, increased the jet pressure of mixing water, be conducive to mixing water and be injected in the mixing water use equipment.

7, in the utility model, described nozzle needle comprises nozzle needle main body and the tapered portion that is arranged on described nozzle needle body end and matches with the nozzle cooling water outlet of described nozzle, described nozzle needle main body circumferentially is provided with support, with when described nozzle needle is assemblied in the nozzle, the outer surface of described support cooperates with the inner chamber of described nozzle with spacing to described nozzle needle main body, between described support, form the fluid passage, it is bigger at hydrodynamic pressure that the setting of described support has overcome in the prior art nozzle needle, perhaps under the unsettled situation of rate of flow of fluid, the spout of itself and nozzle departs from or with the problem that radially wobbles, the outer surface of described support contacts to realize spacing to described nozzle needle main body with the internal chamber wall of described nozzle, improved the jet effect.

Description of drawings

Content of the present utility model is easier clearly to be understood in order to make, and according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the perspective view of adjustable fluid valve of the present utility model;

Fig. 2 is the sectional structure schematic representation of adjustable fluid valve of the present utility model;

Fig. 3 is the cooperating structure schematic representation of described nozzle of the present utility model and described nozzle needle;

Fig. 4 is the perspective view of described nozzle of the present utility model;

Fig. 5 is the perspective view of described nozzle needle of the present utility model;

Fig. 6 is the sectional view of the stereochemical structure of described nozzle of the present utility model;

Fig. 7 is a kind of structural type of the described diffusion pipeline section of described trunnion of the present utility model;

Fig. 8 is the another kind of structural type of the described diffusion pipeline section of described trunnion of the present utility model.

Reference character is expressed as among the figure: 1-nozzle needle main body, and the 1a-supercharging mixes water section, 2-tapered portion, the 2a-root, 2b-front end, 3-fluid passage, the 4-fin, 41-first convex rib, 42-second convex rib, the 9-nozzle, 91-nozzle cooling water inlet, 92-nozzle cooling water outlet, 93-polygonal end face, 94-peripheral flange, 95-hot water section, 96-nozzle tapered portion, 11-trunnion, 11a-latus rectum pipeline section, 11b-expands pipeline section, the 12-valve body, 12a-hot water mouth, 12b-cold water outlet, the 13-rotating component, 15-cold water is gone into fluid space, the outlet of 16-cold water injection, β-angle of flare.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.Should be understood that embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.

In conjunction with Fig. 1, shown in Figure 2, the adjustable fluid valve that present embodiment provides, be suitable for being installed in the valve, comprise valve body 12, described valve body is provided with cold water outlet, described cold water outlet 12b is used for being communicated with the cold water channel of valve, is used for the hot water mouth 12a that is communicated with the hot water channel hot water mouth of valve and the mixed mouth of a river that is used for hot and cold water is mixed back output; Nozzle 9 is arranged in the described valve body, has nozzle cooling water inlet and the nozzle cooling water outlet that can be connected with the cold water channel of valve by described cold water outlet; Nozzle needle can be assemblied in described nozzle interior, goes into fluid space 15 with the inner chamber formation cold water of described nozzle, forms cold water injection outlet 16 with described nozzle cooling water outlet; Trunnion, the described mixed mouth of a river that is connected in described valve body is located, and is used for the mixing water water conservancy diversion is gone out.

Wherein, the fixed-site of described nozzle needle on the axial direction of described adjustable fluid valve is motionless, the position of described nozzle on the axial direction of described adjustable fluid valve is adjustable, can realize described cold water is gone into the adjusting of fluid space 15, hot water mouth and cold water injection outlet 16 simultaneously by the described nozzle of axial adjustment.Its concrete working principle is: the distance between described nozzle needle and the described trunnion 11 is changeless, described nozzle 9 moves axially between described nozzle needle and described trunnion 11, when described nozzle 9 is shifted to described nozzle needle pin end, cold water discharge reduces, hot water discharge increases, and the mixing water water-exit temperature raises; When described nozzle 9 was shifted to described trunnion 11 1 end ends, cold water discharge increased, and hot water discharge reduces, and the mixing water water-exit temperature reduces.

Therefore, the adjustable fluid valve that present embodiment provides in actual use, only need the described nozzle 9 of axial adjustment to move and to realize that described cold water is gone into fluid space 15, hot water mouth 12a and cold water injection exports 16 adjusting, overcome in the prior art adjustable fluid valve in order to reach suitable mixing water temperature, must regulate nozzle needle and nozzle simultaneously, use difficulty more greatly and the technical problem of makeing mistakes easily.

In addition, in the present embodiment, as shown in Figure 2, described nozzle 9 when the axial direction adjusted position of described jet spool, the cold water pressure at described nozzle cooling water inlet 91 places on it all the time with described spool housing 12 on the cold water pressure at described cold water outlet 12b place be consistent.This purpose can realize by following dual mode:

Mode one: described nozzle cooling water inlet 91 along the opening length of nozzle needle axial direction more than or equal to the axially open length of cold water outlet 12b and the shift motion sum of nozzle 9, make nozzle 9 when adjusted position, cold water outlet 12b is in the opening length range of nozzle cooling water inlet 91 all the time, thereby can remain the cold water injection pressure of nozzle interior.

Mode two: described cold water outlet 12b along the opening length of nozzle needle axial direction more than or equal to described nozzle cooling water inlet 91 along the opening length of nozzle needle axial direction and the shift motion sum of nozzle 9, can make nozzle 9 equally when adjusted position, nozzle cooling water inlet 91 is in the opening length range of cold water outlet 12b all the time, thereby can remain the cold water injection pressure of nozzle interior.

More than two kinds of set-up modes guaranteed that the pressure of described cold water outlet 12b equates with the pressure of described cold water injection outlet 16, as described in having prevented from occurring in moving axially process as nozzle 9 as described in of the prior art the cold water inlet pressure of nozzle less than as described in the cold water injection situation that exports 16 pressure take place, and the cold water inlet pressure that described nozzle takes place in the prior art is when exporting the situation of situation of 16 pressure less than described cold water injection, because the restriction of himself structure, can only make that described cold water injection exports the cold water inlet pressure that 16 pressure are greater than or equal to described nozzle 9 by the mode of regulating described nozzle needle axial displacement again, so that described cold water jet normal injection.

In order to regulate described nozzle 9 easily along position on the axial direction of described valve body 12, further, the described jet spool of the utility model mode of execution also comprises the rotating component 13 of regulating its axial position for pilot jet 9, described rotating component 13 is arranged on the described valve body 12 rotationally by the sealing of Sealings such as O type circle, and move to axial with described nozzle 9 and cooperate by moving axially regulation structure (following detailed description), to change rotatablely moving of described rotating component 13 into described nozzle 9 move axially.

Particularly, for example, the described regulation structure that moves axially can be the rack and pinion of mutual transmission cooperation, and namely nozzle 9 is provided with described tooth bar, and rotating component 13 links to drive nozzle 9 with gear and moves axially.

A kind of preferred embodiment in, as illustrated in fig. 1 and 2, described rotating component 13 is connected to drive described nozzle needle with described nozzle needle and rotates simultaneously, particularly, for easy to process, the end that rotating component 13 is connected with nozzle needle is formed with interior threaded hole, and the end of nozzle needle is formed with external thread part, and both can connect by screw-thread fit; Certainly, rotating component 13 also can be one-body molded with nozzle needle;

Simultaneously, described valve body 12 cooperates with described nozzle 9 by restriction rotation section (following detailed description), when rotating to drive described nozzle needle at described rotating component 13, described nozzle 9 does not rotate with respect to described valve body 12, but it can move with respect to the axial direction of described valve body 12 along described nozzle needle under the described effect that moves axially regulation structure.

Particularly, described move axially regulation structure can for comprise be formed on the internal thread on described nozzle 9 and the end that described rotating component 13 matches and be formed on the described rotating component 13 and with the outside thread of described screw-internal thread fit, wherein, described internal thread and described externally threaded screw-thread fit stroke are more than or equal to the removable stroke of described nozzle, be that nozzle 9 is when being in cold water shown in Figure 2 circulation closed position, nozzle cooling water outlet 92 is to the distance of valve trunnion 11, like this, as illustrated in fig. 1 and 2, driving nozzle needle by rotation rotating component 13 rotates in nozzle 9 inner chambers, and described restriction rotational structure will stop that nozzle 9 rotates with respect to valve body 12, simultaneously, owing to be screw-thread fit between nozzle 9 and the rotating component 13, this will make that the axial direction along nozzle needle moves back and forth under the effect of screw-thread fit of nozzle 9, thereby realize described cold water is gone into fluid space 15, hot water mouth 12a(Fig. 2 shows) and the adjusting fluid flow of cold water injection outlet 16 time, easy to use.

In addition, in the structure that rotating component 13 drive nozzle needles rotate together, the described regulation structure that moves axially also can be other structures, the cooperating structure of helical gear and tooth bar for example, helical gear rotational motion can be changed into the movement of tooth bar, namely nozzle 9 is provided with tooth bar, and rotating component 13 is provided with helical gear, thereby will drive nozzle 9 moving axially along nozzle needle by rotation rotating component 13.

When realizing that described rotating component 13 drives described nozzle needle and together rotates, but described nozzle 9 does not rotate can be under the described effect that moves axially regulation structure 7, the technique effect that moves along the axial direction of described nozzle needle with respect to described valve body 12, the restriction rotational structure is set in the present embodiment, described valve body 12 cooperates with described nozzle by the restriction rotational structure, when rotating to drive described nozzle needle at described rotating component, described nozzle does not rotate with respect to described valve body, but it can move with respect to the axial direction of described valve body along described nozzle needle under the described effect that moves axially regulation structure.Preferred embodiment as present embodiment, as shown in Figure 4, described restriction rotational structure is the polygonal end face that is formed on the described nozzle, accordingly, the inner wall shape of described valve body is shaped to the structure that matches with described polygonal end face, and the screw-internal thread fit on the outside thread of described like this rotating component 13 and the described nozzle 9 is done the time spent, and described nozzle 9 is because the restriction of described restriction rotational structure, can not rotate, but can move along the axial direction of described nozzle needle.

As a kind of replacement form of above-mentioned mode of execution, the flange that described restriction rotational structure can also arrange for the inwall at described valve body and on the sidewall of described nozzle along axial direction setting and the guiding groove that is slidingly matched with described flange.Certainly this kind structure is not the unique way of realization of this replacement form, described limiting structure also can for be molded over the guiding groove on the described valve interior wall and be molded over the sidewall of described nozzle 9, along axial direction setting and the guiding groove that is slidingly matched with described flange.

In order to realize nozzle cooling water inlet 91 and to keep apart with cold water outlet 12b and described hot water mouth 12a on the described valve body 12 that described nozzle cooling water inlet 91 is communicated with, so that adjustable fluid valve of the present utility model can reach good jet effect, in the present embodiment, as shown in Figure 3, Figure 4, form a pair of peripheral flange that extends radially outwardly between the nozzle cooling water inlet of described nozzle and nozzle cooling water outlet, described nozzle the hot water section between described peripheral flange and described nozzle cooling water outlet can be connected with the hot water channel of valve.Make described cold water outlet 12b and described hot water mouth 12a separate fully in order to reach the better seal effect, in assembly process, make the outer surface of described peripheral flange and the internal surface of described nozzle 9 tightly fit, fitting tight part between a pair of described peripheral flange 94, as seal ring, further improved sealing effect.

In the present embodiment, as shown in Figure 1 and Figure 2, described trunnion 11 is assemblied in the described valve body 12, be formed with the hot water mouth who communicates with hot water channel and described trunnion on the described valve body, the effect of described trunnion 11 mainly is fully to mix and energy interchange for hot and cold water, and described trunnion 11 has latus rectum pipeline section 11a and expansion pipeline section 11b.In the present embodiment; the diameter of bore of described latus rectum pipeline section 11a is 5mm-14mm, is preferably 6mm-10mm, but the protection domain that this scope is not the utility model to be limited; according to different needs of work, the diameter of bore of described latus rectum pipeline section 11a can be selected bigger scope.The length of described latus rectum pipeline section is 5-8 times of its diameter of bore, is preferably 6 times.

In the present embodiment, as shown in Figure 7, the effect of described expansion pipeline section 11b is that a part of kinetic energy of the mixing water in trunnion 11 outlet ports is become pressure energy, in the process that described energy transforms, there is divergence loss, and divergence loss what with distribution, angle of flare size and the diffusion cross section diameter of expansion pipeline section 11b entrance flow velocity than relevant, as the preferred embodiment of present embodiment, described angle of flare range of choice a is 5 °-15 ° °.In the present embodiment, described expansion pipeline section 11b is preferably the LINEAR CONTINUOUS expansion, but also can expand continuously for stepped shaft, and the concrete form of its expansion is not restricted.Further, in the present embodiment, described expansion pipeline section 11b its osculum end to big opening end of serving as reasons is progressively expanded.Described expansion pipeline section 11b is preferably the 3 stops expansion, as shown in Figure 8, wherein the angle of flare is preferably β=2 °, 4 °, 13 °, and described angle of flare β can also select 1 °, 3 °, 12 °, also can adopt other a plurality of angles to be used according to the different needs of work certainly.

In the present embodiment, as shown in Figure 3, the diameter of the nozzle cooling water outlet of described nozzle 9 is 3mm-10mm, is preferably 4mm-6mm, but protection domain of the present utility model is not limited thereto scope, elects 5mm in the present embodiment as.

In order to be implemented in hydrodynamic pressure by described nozzle cooling water inlet 91 more greatly even under very big and the unsettled situation of flow velocity, described nozzle needle in the utility model can not be subjected to the influence of hydrodynamic pressure, realize good jeting effect, in the present embodiment, as Fig. 1, Fig. 2 and shown in Figure 5, described nozzle needle comprises nozzle needle main body 1 and the tapered portion that is arranged on described nozzle needle main body 1 end and matches with the nozzle cooling water outlet of described nozzle, described nozzle needle main body 1 circumferentially is provided with support, with when described nozzle needle is assemblied in the nozzle, the outer surface of described support cooperates with the inner chamber of described nozzle with spacing to described nozzle needle main body 1, forms the fluid passage between described support.

The nozzle needle of this spline structure in actual use, even the pressure of the fluid by nozzle 9 more greatly or very big and flow velocity is unstable, namely along the length direction of nozzle needle, even the radial pressure that the different parts of nozzle needle bears differs greatly, also can not influence under the smooth and easy mobile prerequisite of fluid, prevent nozzle needle effectively because it bears very big uniform radial pressure and depart from the spout of nozzle 9 or radial wobble or swing take place in the radial direction, avoid having influence on the jeting effect of the nozzle 10 of nozzle 9.

Effect and function according to above-mentioned described support, in practical structures, this support can have multiple different structural type, describe several structures of described support in detail below with reference to accompanying drawing, but it will be appreciated that, described support is not limited to following described structure, and those skilled in the art can make various distortion, replacement or modification to it.

First kind of structure of described support:

In this structure, as shown in Figure 1, described support comprises that outer surface around described nozzle needle main body 11 is uniform and extend a plurality of fins 4 that arrange along the axial direction of nozzle needle along circumferential direction, and a plurality of fins 4 form described fluid passage 3 each other.Like this, after nozzle needle and nozzle assembling, fin 4 can contact cooperation with the inner chamber of nozzle, to carry out spacing to nozzle needle main body 1.

In reality processing, fin 4 can by the machining mode for example cutting way form, also can be by mode and nozzle needle main body 11 disposal moldings such as casting or injection mouldings, can select suitable forming method for use according to actual.

Further, in order to strengthen the jeting effect of nozzle, described fin 4 comprises first convex rib 41 and second convex rib 42, wherein, described first convex rib 41 is relative with the nozzle cooling water inlet 91 of nozzle 9, and its radial dimension forms described fluid passage less than the radial dimension of described second convex rib 42 with the internal chamber wall with nozzle 9, and the outer surface of described second convex rib 42 cooperates with the inner chamber of described nozzle 9.Thereby by fin 4 structural improvement, can when guaranteeing that support is spacing to nozzle needle, can improve the jeting effect of nozzle 9.

At this moment, nozzle needle both can move back and forth along the axial direction of nozzle under the position-limiting action of support, also can rotate in nozzle.

Certainly, in actual use, can be formed with the fluting corresponding with second convex rib 42 on the internal chamber wall of nozzle 9, this fluting extends along the axial direction of nozzle 9, and second convex rib 42 can be engaged in the described fluting and slide along the axial direction of described nozzle.In this structure, described fluting has leading role and anti-rotation effect simultaneously to nozzle needle, and namely nozzle needle can only move back and forth along the axial direction of nozzle, and can not rotate in nozzle.

For easily manufactured, preferably, the quantity of fin 4 is three, four, five, six, and wherein, four fins 4 are preferred version, at this, the quantity of fin 4 are not done concrete restriction, as long as can realize technique effect of the present utility model; The water cross section excessively of the described fluid passage 3 that described a plurality of fin 4 forms each other is greater than the cross section of the described nozzle cooling water outlet 92 of described nozzle 9, this kind set-up mode guarantees that the hydraulic pressure at described nozzle cooling water outlet 92 places is bigger, guarantees that further described cold water injection exports 16 good jeting effects.

Second kind of structure of described support:

In this structure, as shown in Figure 4, described support is the annular backup pad 5 that is arranged on the described nozzle needle main body 11, forms a plurality of pod apertures 6 as described fluid passage on the plate face of this annular backup pad 5.

Annular backup pad 5 can have suitable thickness according to actual needs, in addition, the shape of pod apertures 6 is not limited to circular hole shape shown in Figure 4, also can be fan shaped borehole, simultaneously, pod apertures 6 should be set to the flow rate of fluid by it is not exerted an influence or produces slight influence, and for example, the connecting part of pod apertures 6 and annular backup pad 5 plate faces is formed with and is beneficial to the circular arc that fluid flows.

The third structure of described support:

In this structure, as shown in Figure 3, described support is annulus 7, and this annulus 7 is connected with described nozzle needle main body 11 by a plurality of ribs 8, and described rib 8 forms described fluid passage 3 each other.

The shape of annulus 7 and rib 8 is set to be beneficial to the smooth and easy of fluid and flows, and produces minimal effect or does not exert an influence with fluid flow.

Below only be three kinds of structural types having described support, but it is not limited to this.

In addition, as Fig. 1, shown in Figure 2, have supercharging between the described support of described nozzle needle main body 11 and the described tapered portion 2 and mix water section 1a, this supercharging mixes the cylindrical shape that is shaped as of water section 1a, with after this nozzle needle and nozzle assembling, specifically as shown in Figure 2, the supercharging of nozzle needle mix water section 1a can and the internal chamber wall of nozzle between form a cold water and go into fluid space 15, can guarantee that the fluid of introducing by the fluid passage mixes and realize pressurized effect in face of the spray cone that enters tapered portion 2 and nozzle 10 formation, and can realize pressurized effect, thereby guarantee the nozzle 10 final good jeting effects of nozzle 9.In the present embodiment, described supercharging mixes water section 1a and elects 7mm as.

As shown in Figure 2, when nozzle needle along the axial direction of nozzle 9 when nozzle 10 moves, the tapered portion 2 of nozzle needle will cooperate with nozzle 10 gradually, therefore, for prevent when tapered portion 2 with after nozzle 10 cooperates fully, also have cold water from nozzle 10 ejections, preferably, the diameter that described supercharging mixes water section 1a greater than, equal or be slightly less than the diameter of the nozzle 10 of described nozzle; Herein, for " more than or equal to " and " being slightly less than " make an explanation: the diameter of the root of the tapered portion of described nozzle needle is during greater than the diameter of the described nozzle cooling water outlet 92 of described nozzle 9, described nozzle 9 is in axial direction mobile, when described hot water mouth 12a opening maximum, when described cold water injection outlet 16 is sealed, the side edge of the outlet edge of the described nozzle cooling water outlet 92 of described nozzle 9 and the tapered portion of described nozzle needle is touched, and seals described cold water injection outlet 16; When the diameter of the root of the tapered portion of described nozzle needle is slightly less than the diameter of described nozzle cooling water outlet 92 of described nozzle 9, described nozzle 9 is in axial direction mobile, when described hot water mouth 12a opening is maximum, the tapered portion of described nozzle needle is passed the described nozzle cooling water outlet 92 of described nozzle 9, most described cold water injection outlet 16 is sealed, can leave minimum gap between the tapered portion of described nozzle needle and the described nozzle cooling water outlet 92 and cold water is therefrom flow through, and this moment, described hot water mouth 12a opens fully, therefore, the cool water quantity that therefrom flows through can be ignored.。

In the present embodiment, the length of the mixed water section 1a of described supercharging can not be too short, otherwise might cause nozzle water outlet bifurcated, i.e. it is relevant that supercharging mixes the thickness of the cross section of cross section, jet expansion of the length of water section 1a and fluid passage and support, will can be very not big but influence.

In addition, as shown in Figure 5, the diameter of described tapered portion 2 dwindles to front end 2b from its root 2a, its tapering is 20 °-90 °, and this tapering comprises 20 ° and 90 °, is preferably 30 °, after nozzle needle and nozzle 9 assemblings, the length of described tapered portion 2 can be less than or equal to the removable stroke of described nozzle 9, like this, can realize that nozzle cooling water outlet 92 cooperates with the suitable of tapered portion 2.

Correspondingly, the tapering of the cold water injection of described nozzle outlet 16 is more than or equal to the tapering of the tapered portion 2 of described nozzle needle.With this, in the present embodiment, the cone angle of the tapered portion of described nozzle can be elected 60 ° as in the present embodiment 30 ° of-100 ° of range.

In addition, the diameter of described tapered portion 2 dwindles to front end 2b LINEAR CONTINUOUS from its root 2a, and namely tapered portion 2 is conical structure.Unimpeded for fluid circulation, as shown in Figure 2, tapered portion 2 can be linear fit with the nozzle cooling water outlet 92 of nozzle 9.Certainly, tapered portion 2 also can be hydromechanical non-linear or for object parabola face form, automatically to make some appropriateness adjustment according to the different flow velocity of fluid for meeting.

Adjustable fluid valve of the present utility model, the parameter of its each parts selects to have significant effects for the effect of the cold water jet suction hot water of adjustable fluid valve, evidence, the general structure of the adjustable fluid valve of present embodiment makes it hour still have extraordinary negative-pressure adsorption effect at cool water quantity in conjunction with concrete parameter, and the DCO effect sees Table 1 data; Table 2 demonstration, when intermediateness was arrived in temperature adjustment, the general structure of adjustable fluid valve also had extraordinary negative-pressure adsorption effect in use in conjunction with concrete parameter in the present embodiment.

Table 1

Table 2

Test condition 2	Temperature adjustment is to intermediateness
		Cooling water inlet pressure (Mpa)	Hot water suction negative pressure (meter water column)
0.05	-0.63
		0.1	<-1

Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the present utility model.

Claims (21)

1. an adjustable fluid valve comprises

Valve body (12), described valve body (12) are provided with cold water outlet (12b), hot water mouth (12a) and are used for the mixed mouth of a river (12c) of mixing water output;

Nozzle (9) is arranged in the described valve body (12), has nozzle cooling water inlet (91) and the nozzle cooling water outlet (92) that can be connected with the cold water channel of valve by described cold water outlet (12b);

Nozzle needle can be assemblied in described nozzle (9) inside, goes into fluid space (15) with the inner chamber formation cold water of described nozzle (9), forms cold water injection outlet (16) with described nozzle cooling water outlet (92);

Trunnion (11), the described mixed mouth of a river (12c) that is connected in described valve body (12) is located, and being used for derives mixing water;

It is characterized in that: the fixed-site of described nozzle needle on the axial direction of described adjustable fluid valve is motionless, the position of described nozzle (9) on the axial direction of described adjustable fluid valve is adjustable, can realize described cold water is gone into the adjusting of fluid space (15), hot water mouth (12a) and cold water injection outlet (16) simultaneously by the described nozzle of axial adjustment (9).

2. adjustable fluid valve according to claim 1, it is characterized in that: also comprise rotating component (13), described rotating component (13) sealing is arranged in the described valve body (12) rotationally, and move to axial with described nozzle (9) and cooperate by moving axially regulation structure (7), so that rotatablely moving of described rotating component (13) changes described nozzle (9) into along the movement of the axial direction of described nozzle needle.

3. adjustable fluid valve according to claim 2, it is characterized in that: described rotating component (13) is connected to drive described nozzle needle with described nozzle needle and rotates simultaneously;

Described valve body (12) cooperates with described nozzle (9) by the restriction rotational structure, and when rotating to drive described nozzle needle at described rotating component (13), described nozzle (9) does not rotate with respect to described valve body (12).

4. adjustable fluid valve according to claim 3, it is characterized in that: described move axially regulation structure (7) comprise be molded over the internal thread on the described nozzle (9) and be molded over that described rotating component (13) is gone up and with the outside thread of described screw-internal thread fit, described internal thread and described externally threaded screw-thread fit stroke are not less than the working stroke of described nozzle.

5. adjustable fluid valve according to claim 3 is characterized in that: described restriction rotational structure is for being formed in the polygonal end face (93) on the described nozzle (9), and the inner wall shape of described valve body (12) matches with described polygonal end face (93).

6. adjustable fluid valve according to claim 3 is characterized in that: guiding groove and/or the flange of described restriction rotational structure for arranging along axial direction on described valve body (12) inwall of the circumferential flange that arranges of the outer wall of described nozzle (9) and/or guiding groove and cooperation with it.

7. adjustable fluid valve according to claim 5, it is characterized in that: a pair of peripheral flange that extends radially outwardly (94) is shaped between the nozzle cooling water inlet (91) of described nozzle (9) and the nozzle cooling water outlet (92), described peripheral flange can be equipped with Sealing between (94), and the hot water section (95) that described nozzle (9) is positioned between described peripheral flange (94) and the described nozzle cooling water outlet (92) can be connected with the hot water channel of valve.

8. adjustable fluid valve according to claim 1, it is characterized in that: described trunnion (11) is assemblied in the described valve body (12), be formed with the hot water mouth (12a) who communicates with hot water channel and described trunnion (11) on the described valve body (12), described trunnion (11) has latus rectum pipeline section (11a) and expansion pipeline section (11b).

9. adjustable fluid valve according to claim 8, it is characterized in that: the diameter of bore of described latus rectum pipeline section (11a) is 5mm-14mm, the length of described latus rectum pipeline section (11a) be its diameter of bore 5-8 doubly.

10. adjustable fluid valve according to claim 9, it is characterized in that: the expansion angle (β) of described expansion pipeline section (11b) is 5 °-15 °.

11. adjustable fluid valve according to claim 10 is characterized in that: described expansion pipeline section (11b) its osculum end to big opening end of serving as reasons is progressively expanded.

12. adjustable fluid valve according to claim 11 is characterized in that: described expansion pipeline section (11b) is the 3 stops expansion.

13. each described fluid valve is characterized in that according to Claim 8-12, the diameter of the nozzle cooling water outlet (92) of described nozzle (9) is 3mm-10mm.

14. adjustable fluid valve according to claim 13, it is characterized in that: the tapered portion (2) that described nozzle needle comprises nozzle needle main body (1) and is arranged on described nozzle needle main body (1) end and matches with the nozzle cooling water outlet (92) of described nozzle (9), described nozzle needle main body (1) circumferentially is provided with support, when being assemblied in the nozzle (9) at described nozzle needle, the outer surface of described support cooperates with the inner chamber of described nozzle with spacing to described nozzle needle main body (1), forms fluid passage (3) between described support.

15. adjustable fluid valve according to claim 14, it is characterized in that: described support comprises around described nozzle needle main body (1) circumferentially uniform and extend a plurality of fins (4) that arrange along its axial direction, and described a plurality of fins (4) form described fluid passage (3) each other.

16. adjustable fluid valve according to claim 15, it is characterized in that: described fin (4) comprises first convex rib (41) and second convex rib (42), described first convex rib (41) is relative with the nozzle cooling water inlet (91) of nozzle, and its radial dimension is less than the radial dimension of described second convex rib (42), form described fluid passage (3) with the internal chamber wall with nozzle, the outer surface of described second convex rib (42) cooperates with the inner chamber of described nozzle.

17. according to claim 15 or 16 described adjustable fluid valves, it is characterized in that: described fin (4) is three or four or five or six;

The water cross section excessively of the described fluid passage (3) that described a plurality of fin (4) forms each other is greater than the cross section of the described nozzle cooling water outlet (92) of described nozzle (9).

18. adjustable fluid valve according to claim 14 is characterized in that: have supercharging between the described support of described nozzle needle main body (1) and the described tapered portion (2) and mix water section (1a), this supercharging mixes the cylindrical shape that is shaped as of water section (1a).

19. adjustable fluid valve according to claim 18 is characterized in that: the diameter that described supercharging mixes water section (1a) greater than, equal or be slightly less than the diameter of the nozzle (10) of described nozzle.

20. adjustable fluid valve according to claim 19, it is characterized in that: the diameter of described tapered portion (2) dwindles to front end (2b) from its root (2a), its tapering is 10 °-150 °, and the length of described tapered portion (2) is less than or equal to the removable stroke of described nozzle.

21. adjustable fluid valve according to claim 1 and 2, it is characterized in that: described nozzle (9) when the axial direction adjusted position of described adjustable fluid valve, the cold water pressure that the described nozzle cooling water inlet (91) on it is located all the time with described spool housing (12) on the cold water pressure located of described cold water outlet (12b) be consistent.

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