CN1645015A - Orifice throttle valves - Google Patents
Orifice throttle valves Download PDFInfo
- Publication number
- CN1645015A CN1645015A CNA2005100328604A CN200510032860A CN1645015A CN 1645015 A CN1645015 A CN 1645015A CN A2005100328604 A CNA2005100328604 A CN A2005100328604A CN 200510032860 A CN200510032860 A CN 200510032860A CN 1645015 A CN1645015 A CN 1645015A
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- Prior art keywords
- valve
- plate
- throttling
- hole
- core assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/38—Expansion means; Dispositions thereof specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to be composed of a valve (1) and a valve core assembly (6), characterised in that the valve core assembly (6) is fixed in an inner cavity of the valve (1) via a clamping-connection manner; the valve core assembly (6) comprises a valve seat (2) and a valve plate (3), the valve plate (3) is provided with a throttle via hole (7), a ratio of a thickness delta of the valve plate (3) and a diameter d of the throttle via hole (7) delta/d is less than or equal to 2; the valve core assembly (6) further includes that, the valve seat (2) and the valve plate (3) are independently moulded or integratively moulded; the valve seat (2) and the valve plate (3) are independently moulded to compose a movable board hole throttle valve; the valve seat (2) and the valve plate (3) are integratively moulded to compose a fixed board hole throttle valve. On one side, the invention simplifies the structure of the valve core, saves materials and reduces cost, on the other side, largely reduces processing periods and increases efficiency.
Description
Technical field
The present invention relates to a kind of choke valve, a kind of plate hole formula choke valve of more specifically saying so is applicable to refrigeration, heatings such as air-conditioning.Belong to the refrigerating/heating equipment technical field.
Background technology
At present, cooling/heating system such as air-conditioning generally adopts capillary to carry out throttling.The single cold type air-conditioner generally adopts single capillary to carry out throttling, and general two capillaries, a check valve and two screen packs of adopting of cold-warm type air-conditioning device are formed orifice union, carry out the cooling/heating system throttling respectively.Adopt capillary-compensated to have following shortcoming: there are at least 8～9 solder joints in (1), causes leakage easily.(2) the capillary pipeline is long, and member is many, take up room big.(3) check valve is the plastics spool, yielding during welding, inefficacy.(4) cold-producing medium long flow path in capillary causes energy loss.(5) capillary easily produce dirty stifled, weldering is stifled and ice is stifled, causes obstructed, the operation irregularity of pipeline.(6) the capillary module copper consumption is big, the cost height.
At the problem that capillary restrictor exists, the someone has studied a kind of short tube type choke valve.For example: the Chinese patent communique discloses a kind of utility model patent, and name is called " a kind of plate hole throttling, part flow arrangement ", the patent No. is " the ZL patent No. 03247899.2 ".This patent can have two kinds of versions: be respectively the portable throttling arrangement that is made of shell, main aperture plate, auxilliary orifice plate, baffle plate, the perhaps fixed energy-conservation stream device that is made of shell and main aperture plate.There is following defective in this patent: in the portable throttling arrangement that (1) is constituted, the auxilliary orifice plate that plays throttling action is Mitsubishi's cylindricality, and process complexity, difficulty are big, and consumptive material is more, the cost height; Auxilliary orifice plate volume is big, Heavy Weight, and less flow is difficult to promote it and moves, and the tip that in use utilizes auxilliary orifice plate and main aperture plate are overlapping carries out throttling, and sealing contact surface amasss little, and restriction effect and technical indicator are difficult to reach designing requirement.(2) in the fixation type throttle device that is constituted, spool is a slab, can only lead to welding method and be fixed on body cavity, is actually a kind of short-tube restrictor valve, and consumptive material is more, the cost height, and filter is not set, cause pipeline blockage easily.
Summary of the invention
The technical issues that need to address of the present invention, purpose promptly of the present invention is for a kind of novel plate hole formula choke valve is provided, this plate hole formula choke valve has overcome many, the shortcomings such as duty is big, cost height of solder joint that the capillary-compensated valve exists.
Technical problem of the present invention can solve by taking following measure:
A kind of plate hole formula choke valve is made of valve body and core assembly, and its design feature is:
1) core assembly is positioned at the inner chamber of valve body, and core assembly is fixed on the inner chamber of valve body by the screens connected mode;
2) comprise a valve plate in the core assembly at least, be provided with the throttling through hole in this valve plate, the ratio of the thickness δ of valve plate and the diameter d of throttling through hole is δ/d＜≤2;
3) also comprise valve seat in the core assembly, valve seat and valve plate split independence moulding or the moulding of one disjunctor; The portable plate hole choke valve of the formation of valve seat and the moulding of valve plate split independence, the table plane of the valve plate of this choke valve fully contacts the formation sealing surface with the end face of valve seat; The fixed plate hole choke valve of formation of valve seat and the moulding of valve plate one disjunctor.
Technical problem of the present invention can also solve by taking following measure:
The valve seat of aforementioned core assembly and the moulding of valve plate split independence constitute portable plate hole choke valve, and valve plate is the rigid circular sheet metal of a band throttling through hole, and its thickness is δ=0.2～0.5mm, the diameter d of throttling through hole=0.3～3mm, δ/d＜≤2.
Also comprise limiting bracket in the core assembly, this limiting bracket is connected to the front end of valve seat, is provided with 3～6 guide rails in the limiting bracket.Make valve plate unlikely upset of translation smoothly in the space that guide rail limits, assurance choke valve valve plate when throttling can be close to the end face of valve seat, and valve plate breaks away from the end face of valve seat when through-flow, utilizes enough big space, guide rail side, guarantees through-flow without hindrance.
Also comprise filter screen in the core assembly, the rear end of valve seat is provided with ring-shaped groove, and filter screen embeds and is installed in the described ring-shaped groove.
At body cavity a core assembly is set, constitutes portable plate hole one-way throttle valve.At body cavity two core assemblies are set, two core assemblies are placed in the inner chamber of valve body on the contrary, constitute portable plate hole bidirectional throttling valve; In two core assemblies the throttling through hole of valve plate small one and large one, macropore is used to the throttling of freezing, aperture is used to heat throttling.
Valve seat and valve plate in the core assembly are one-body molded, form the reticulum of a band throttling through hole, described reticulum is fixed in the inner chamber of valve body by clamping or welding manner, the central part of reticulum forms valve plate, the throttling through hole is positioned at the center of valve plate, and the ratio of the thickness δ of valve plate and the diameter d of throttling through hole is δ/d＜≤2.
Be provided with a ring-shaped groove around the described reticulum, this ring-shaped groove can embed the installation filter screen, when embedding the installation screen pack, has and filters and the throttling dual-use function, also can not embed filter screen, and have only throttling function this moment, constitutes a miniature restricting element.
The present invention has following outstanding effect:
1, one of outstanding advantage of the present invention is that the ratio that defines the diameter d of the thickness δ of valve plate and throttling through hole is δ/d＜≤2, thereby constitutes plate hole formula spool.Simplify the structure of spool on the one hand, saved material, reduced cost, can shorten the process-cycle greatly on the other hand, improved efficient.
2, two of outstanding advantage of the present invention is to utilize the plane of valve plate to seal.When being designed to portable one-way throttle valve or portable bidirectional throttling valve, utilize the plane of valve plate to seal with tight contact of valve seat planes, omitted sealing ring, simplify the structure, reduced cost, reduced the possibility that breaks down.
3, three of outstanding advantage of the present invention is to be provided with the plug-in limiting bracket, is provided with at least three guide rails in the limiting bracket, and valve plate is limited in translation in the guide rail, when choke valve cuts out, valve plate is close to valve seat, when choke valve is opened, leaves enough spaces around the valve plate.
4, four of outstanding advantage of the present invention is to be provided with filter screen, contaminant filter can be fallen, and prevents to stop up the throttling through hole of spool and prevents that impurity from entering in the compressor, prolongs the service life of compressor.Has energy-conservation, filtration dual-use function.
5, five of outstanding advantage of the present invention is that valve seat and valve plate are formed one, constitutes the reticulum of a band throttle orifice, when reticulum embeds filter screen, forms the throttling filter screen, has throttling and filters double action.When not embedding filter screen, only play throttling action.
Description of drawings
Fig. 1 is the structural representation of concrete application example 1 of the present invention
Fig. 2 is the structural representation of concrete application example 2 of the present invention
Fig. 3, Fig. 4 are the structural representations of concrete application example 3 of the present invention
The specific embodiment
Below in conjunction with specific embodiment the present invention is specifically described.
Specific embodiment 1:
As shown in Figure 1, present embodiment is made portable plate hole one-way throttle valve.Be made of valve body 1 and core assembly 6, valve body 1 is a tubular, and core assembly 6 is made of valve seat 2, valve plate 3, limiting bracket 4 and filter screen 5, is provided with throttling through hole 7 in the valve plate 3; Valve seat 2 constitutes the inner chamber that plug-in is fixed in valve body 1 by the concave, convex bit pairing; Limiting bracket 4 is fixed in the front end of valve seat 2 with concave, convex position snap fit, and limiting bracket 4 is provided with 4 guide rails, stays gap 10 between limiting bracket 4 and valve seat 2 front ends, valve plate 3 be arranged in described gap 10 and can be in the gap 10 free shift; Filter screen 5 is fixed in the tail end of valve seat 2 with concave, convex position snap fit; The ratio of the thickness δ of valve plate 3 and the diameter d of throttling through hole is δ/d＜≤2.
As can be seen from Figure 1, valve plate 3 can be in limiting bracket 4 free shift, when cold-producing medium flows in the direction of arrows, promoting valve plate 3 is close to the end face of valve seat 2, valve plate 3 forms sealing with contacting of valve seat 2 end faces, and cold-producing medium can only flow through from the throttle orifice 7 of valve plate 3, thereby produces throttling.When the rightabout of pressing arrow when cold-producing medium flows, promote lift off a seat 2 end face of valve plate 3, cold-producing medium can flow through from the space around the valve plate and the throttle orifice 7 of valve plate 3, this moment valve plate aperture 7 no throttling actions, check valve is in through-flow state.
Specific embodiment 2:
As shown in Figure 2, present embodiment is made movable plate cellular type bidirectional throttling valve.Constitute by a valve body 1 and two opposite core assemblies of settling 6; Core assembly 6 is made of valve seat 2, valve plate 3, limiting bracket 4 and filter screen 5, is provided with throttling through hole 7 in the valve plate 3; Valve seat 2 constitutes the inner chamber that plug-in is fixed in valve body 1 by the concave, convex bit pairing; Limiting bracket 4 is fixed in the front end of valve seat 2 with concave, convex position snap fit, is provided with three, five or six guide rails in the limiting bracket 4; Stay gap 10 between limiting bracket 4 and valve seat 2 front ends, valve plate 3 be arranged in described gap 10 and can be in the gap 10 free shift, valve plate 3 contact formation and seals with the valve seat end face; The rear end of valve seat 2 is provided with ring-shaped groove, and filter screen 5 embeds and is installed in the described ring-shaped groove; Two core assemblies 6 are settled on the contrary, are individually fixed in the inner chamber of valve body 1, the throttling through hole of the valve plate 3 in two core assemblies 6 small one and large one, wide-aperture core assembly 6 is used to the throttling of freezing, the core assembly 6 of small-bore is used to heat throttling; The ratio of the thickness δ of the valve plate 3 in two core assemblies 6 and the diameter d of throttling through hole is δ/d＜≤2.
As can be seen from Figure 2, in the present embodiment, the outside is a tubular valve body 1, and two groups of core assemblies 6 are settled by rightabout in inside.Throttle orifice in the valve plate of two groups of core assemblies 6 small one and large one, macropore d1 is used to the throttling of freezing, aperture d2 is used to heat throttling.Two valve plates can be in limiting bracket separately free shift, the translation direction of valve plate 3 is relevant with the flow direction of cold-producing medium, when cold-producing medium is pressed the solid arrow direction when flowing, promotion heats valve plate and leaves the end face that heats valve seat, heat end this moment and be through-flow state, promote refrigeration valve plate 3 simultaneously and be close to the end face of the valve seat that freezes, this moment, refrigeration end was in throttle.Press the dotted arrow direction when flowing when cold-producing medium, throttle is opposite, heats end this moment and is throttling, and refrigeration end is through-flow.Thereby formation bidirectional throttling valve.
Specific embodiment 3:
As shown in Figure 3, present embodiment is made fixed head cellular type choke valve, is made of valve body 1 and core assembly 6; Valve body 1 in a tubular form, spool 6 is made of valve seat 2, valve plate 3 and filter screen 5, valve seat 2 and valve plate 3 one-body molded, reticulums of being with throttling through hole 7 of formation, reticulum is fixed in the inner chamber of valve body 1 by clamping or welding manner, be provided with a ring-shaped groove around the reticulum, filter screen 5 embeds and is installed in this groove.The central part of reticulum forms valve plate 3, and throttling through hole 7 is positioned at the center of valve plate 3, and the ratio of the thickness δ of valve plate 3 and the diameter d of throttling through hole 7 is δ/d＜≤2.
From Fig. 3, Fig. 4 as can be known, when cold-producing medium flowed from right to left, 5 pairs of throttling pore 7 of filter screen had the filtration protective effect, otherwise did not promptly have the protective effect of filtration.Fig. 3, Fig. 4 are the filter screens of two kinds of difformities, different size, are applicable to the valve body of different tube diameters.
In this specific embodiment 3, the ring-shaped groove around the described reticulum can embed the installation filter screen, when embedding the installation screen pack, has and filters and the throttling dual-use function.Also can not embed filter screen, have only throttling function this moment, constitutes a miniature restricting element.As an orifice union independently, can be installed on the position of any needs in the connecting line, pipeline structure is simplified greatly, and do not had solder joint.Be specially adapted in single cold air-conditioning and the dehumidifier.
The present invention is the throttling device of new generation after capillary-compensated, is equivalent to capillary is shortened to a valve plate.A valve plate and a top punching press of throttle orifice thereof are made, the uniformity of amount of restriction in can guaranteeing to produce in batches, and valve plate and valve seat end face adopt the plane contact sealing, and handling ease, sealing are reliably.Limiting bracket is stamped to form with stainless sheet steel, the working (machining) efficiency height.Therefore, the present invention also has compact conformation except that the advantage with short-tube restrictor valve, and cost is lower, volume is littler, more reliable performance, more advantage such as energy saving.In addition, the present invention also has the characteristics of the high temperature of anti-the welding, can provide various appearance and sizes according to user's needs.
Claims (8)
1, a kind of plate hole formula choke valve is made of valve body (1) and core assembly (6), it is characterized in that:
1) core assembly (6) is positioned at the inner chamber of valve body (1), and core assembly (6) is fixed on the inner chamber of valve body (1) by the screens connected mode;
2) comprise a valve plate (3) at least in the core assembly (6), be provided with throttling through hole (7) in this valve plate (3), the ratio of the diameter d of the thickness δ of valve plate (3) and throttling through hole (7) is δ/d＜≤2;
3) also comprise valve seat (2) in the core assembly (6), valve seat (2) and valve plate (3) split independence moulding or the moulding of one disjunctor; Valve seat (2) and the portable plate hole choke valve of the formation of valve plate (3) split independence moulding, the table plane of the valve plate of this choke valve (3) fully contacts the formation sealing surface with the end face of valve seat (2); The fixed plate hole choke valve of formation of valve seat (2) and the moulding of valve plate (3) one disjunctor.
2, a kind of plate hole formula choke valve according to claim 1, it is characterized in that: the valve seat (2) of core assembly (6) and the moulding of valve plate (3) split independence, constitute portable plate hole choke valve, valve plate (3) is the rigid circular sheet metal of a band throttling through hole (7), its thickness is δ=0.2～0.5mm, the diameter d of throttling through hole=0.3～3mm, δ/d＜≤2.
3, a kind of plate hole formula choke valve according to claim 2, it is characterized in that: also comprise limiting bracket (4) in the core assembly (6), this limiting bracket (4) is connected to the front end of valve seat (2), is provided with 3～6 guide rails in the limiting bracket (4).
4, a kind of plate hole formula choke valve according to claim 2, it is characterized in that: also comprise filter screen (5) in the core assembly (6), the rear end of valve seat (2) is provided with ring-shaped groove, and filter screen (5) embeds and is installed in the described ring-shaped groove.
5, according to claim 3 or 4 described a kind of plate hole formula choke valves, it is characterized in that: valve body (1) inner chamber is provided with a core assembly (6), constitutes portable plate hole one-way throttle valve.
6, according to claim 3 or 4 described a kind of plate hole formula choke valves, it is characterized in that: valve body (1) inner chamber is provided with two core assemblies (6), and two core assemblies (6) are placed in the inner chamber of valve body (1) on the contrary, constitutes portable plate hole bidirectional throttling valve; In two core assemblies (6) the throttling through hole of valve plate (3) small one and large one, macropore is used to the throttling of freezing, aperture is used to heat throttling.
7, a kind of plate hole formula choke valve according to claim 1, it is characterized in that: the valve seat (2) in the core assembly (6) is one-body molded with valve plate (3), form the reticulum of band throttling through hole (7), described reticulum is fixed in the inner chamber of valve body (1) by clamping or welding manner, the central part of reticulum forms valve plate (3), throttling through hole (7) is positioned at the center of valve plate (3), and the ratio of the diameter d of the thickness δ of valve plate (3) and throttling through hole (7) is δ/d＜≤2.
8, a kind of plate hole formula choke valve according to claim 6 is characterized in that: be provided with a ring-shaped groove around the described reticulum, this ring-shaped groove embeds filter screen is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100328604A CN1645015A (en) | 2005-01-25 | 2005-01-25 | Orifice throttle valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100328604A CN1645015A (en) | 2005-01-25 | 2005-01-25 | Orifice throttle valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1645015A true CN1645015A (en) | 2005-07-27 |
Family
ID=34876085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100328604A Pending CN1645015A (en) | 2005-01-25 | 2005-01-25 | Orifice throttle valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1645015A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398943C (en) * | 2006-01-06 | 2008-07-02 | 广东恒基金属制品实业有限公司 | Inward convex integrated throttle valve |
| CN102997541A (en) * | 2012-12-26 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
-
2005
- 2005-01-25 CN CNA2005100328604A patent/CN1645015A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398943C (en) * | 2006-01-06 | 2008-07-02 | 广东恒基金属制品实业有限公司 | Inward convex integrated throttle valve |
| CN102997541A (en) * | 2012-12-26 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |