CN2502115Y - Automatic regulating orifice plate - Google Patents
Automatic regulating orifice plate Download PDFInfo
- Publication number
- CN2502115Y CN2502115Y CN 01256473 CN01256473U CN2502115Y CN 2502115 Y CN2502115 Y CN 2502115Y CN 01256473 CN01256473 CN 01256473 CN 01256473 U CN01256473 U CN 01256473U CN 2502115 Y CN2502115 Y CN 2502115Y
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- orifice plate
- floating
- controlling device
- tube type
- type controlling
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides an automatic regulating orifice plate. The orifice plate is provided with an automatic regulating device in floating drum type, a guide disk and a bracket, wherein, the automatic regulating device in floating drum type is formed by fixedly connecting the round hollow floating drum and the regulating probe at the center of the floating drum in a sealed manner, the upper and the lower ends of the regulating probe respectively come out of the drum body; through the motion up and down of the regulating probe of the regulating device in floating drum type, the utility model changes the flowing orifice diameter of the orifice plate and automatically controls the discharge of the liquid; whereas, the steam is not discharged, further forming a certain throttling pressure difference. The utility model has the advantages of perfect sealing performance, good drainage performance, simple structure and convenient operation.
Description
(1) technical field
The utility model belongs to the device field of discharge liquid in the seal container of steam, is specifically related to a kind of orifice plate in the steam line.
(2) background technique
Orifice plate (Fig. 1) is in use except measuring the flow according to magnitude of pressure differential, be to utilize the chock pressure difference in hole and carry out hydrophobic more to the selectivity of vapour-liquid two-phase flow, promptly only allow liquid to pass through, do not allow steam to pass through, reduce to make liquid flashes (or making the high-temp liquid secondary vaporizing) by means of pressure, for the recycling of steam and the recovery of water of condensation create conditions.This equipment has a very important role in heat recovery and temperature control system.Because: 1) if pressure reduction can not finely form, the effect of flash distillation will variation, promptly secondary vapour yield seldom, the water of condensation temperature drop does not get off and makes water of condensation be difficult to reclaim, energy-saving effect is difficult to realize.2) if pressure reduction deficiency or orifice plate stop up (aperture is too small), the work heat-transfer effect out of control and the back heat exchanger of steam jet ejector (heat pump) is degenerated, temperature control variation.When chock pressure difference is too little the work of steam jet ejector is lacked of proper care, be difficult to reach suction secondary steam and energy-conservation effect.Utility model patent (patent No. 87208200) provides a kind of structure of orifice plate drain valve, and its suction port has been installed Ω shape filter, has increased hydrophobic amount, thereby the orifice plate drain valve can be applied in the less vapour system of flow.But this utility model patent has only solved hydrophobic problem, fails to solve the throttling problem.
(3) summary of the invention
The purpose of this utility model provides that liquid in a kind of system that can make the coexistence of steam and liquid is constantly discharged, steam can not be discharged (or a small amount of discharge), can form the automatic adjusting orifice plate of certain chock pressure difference again.
A kind of automatic adjusting orifice plate of the utility model is provided with the floating-tube type controlling device in former abacus, moving up and down of metering needle by the floating-tube type controlling device, the size that changes the through-flow aperture area of orifice plate is come the discharge of controlling liquid, steam then can not be discharged, and can form certain chock pressure difference again.
A kind of automatic adjusting orifice plate of the utility model contains abacus, aperture, orifice plate tube wall, it is characterized in that: also contain floating-tube type controlling device, upper flange, positioning disk and support; Described floating-tube type controlling device is sealedly and fixedly connected by the hollow floating drum and the floating drum center adjustment pin of circle, and the upper and lower end of metering needle exposes cylindrical shell respectively, and its metering needle is a hollow cylindrical, and the underpart is conical.
Described positioning disk is fixedlyed connected with the support at upper flange center, is positioned at the orifice plate top, is sealedly and fixedly connected with the orifice plate tube wall simultaneously; The support of She Zhiing can make liquid and small amount of steam enter in the orifice plate tube wall like this.
Above-mentioned upper bracket and lower support frame are to be made of three supports and an annulus.
A lower support frame is set between positioning disk and orifice plate, lower support frame and orifice plate tube wall are sealedly and fixedly connected, at the lower support frame center one circular hole is arranged, the shaft diameter of the metering needle of its aperture and floating-tube type controlling device cooperatively interacts, lower support frame guarantees that liquid can in time discharge smoothly, metering needle to the floating-tube type controlling device plays the fixed guide effect again, makes it can be well in movement in vertical direction.
Floating-tube type controlling device of the present utility model is arranged between positioning disk and the lower support frame, and leaves the space between the floating drum of floating-tube type controlling device and the orifice plate tube wall inboard, so that the flow of liquid mistake.
Above-mentioned positioning disk structure, its center is the open circles tubular, the shaft diameter of the metering needle of the diameter of cylinder and floating-tube type controlling device cooperatively interacts, extend towards periphery from the center drum bottom one discoid, the upper surface of disk therefrom mind-set edge is a gradient, and leaves the space between positioning disk and the orifice plate tube wall inboard; The inclined design of this positioning disk makes liquid not flow directly on the floating-tube type controlling device, but along the positioning disk inclined-plane to around flow in the orifice plate tube wall, can not produce impact force to the floating drum of the floating-tube type controlling device of below, play good hydrophobic effect; Because the shaft diameter of the metering needle of floating-tube type controlling device and the diameter of positioning disk center drum cooperatively interact, therefore make its metering needle do upper and lower motion in Vertical direction, the positioning disk center drum is exactly the guide rail that its metering needle moves up and down; The side has aperture on the positioning disk center drum, when metering needle moves up and down, so that the gas in the cylinder is in time discharged.
The center in the positioning disk of a kind of automatic adjusting orifice plate of the utility model, floating-tube type controlling device, support, aperture all is positioned at same axle center.
When state of rest, the top circular shaft of the metering needle of floating-tube type controlling device is positioned at the center drum of positioning disk, the lower cone of its metering needle is partly passed the circular hole at lower support frame center and is positioned at the aperture place of orifice plate, and at this moment, the floating drum bottom surface of floating-tube type controlling device is dropped on the lower support frame.
The working procedure of a kind of automatic adjusting orifice plate of the utility model is as follows:
When the support of liquid and small amount of steam process upper flange enters in the orifice plate tube wall, liquid can be along the positioning disk inclined-plane to flowing into all around, the specific gravity difference under uniform pressure according to liquid and steam, the floating drum of floating-tube type controlling device rises or descends under effects such as buoyancy of liquid and gravity, at this moment, the metering needle of floating-tube type controlling device also rises thereupon or descends, thereby comes the discharge of controlling liquid by the size that changes the through-flow aperture area of orifice plate, and steam then can not be discharged.Promptly when hydrops was too much, the volume of floating drum in liquid increased, and rose because of its buoyancy that is subjected to increases, and it is big that then through-flow aperture area becomes, and liquid is just a large amount of discharges; When hydrops reduced, the volume of floating drum in liquid reduced, buoyancy reduces, and floating drum is subjected to action of gravity and descends, and then through-flow aperture diminishes, and the discharge of liquid reduces or stops, and steam leakage seldom.Buoyancy and these five kinds of power effects of the frictional force in the movement process that the rise and fall campaign of floating drum is mainly formed by drying cylinder pressure, flash tank pressure, floating drum gravity, the volume of floating drum in liquid are issued to certain relative equilibrium, promptly require the continuous discharge of liquid to form certain chock pressure difference again.Big of this equipment is static part, and only the metering needle of floating-tube type controlling device moves up and down, and the acting in conjunction of support and positioning disk is arranged, and stuck phenomenon can not occur, moves reliable and stable.
The major advantage of a kind of automatic adjusting orifice plate of the utility model is:
1, can automatically often keep needed pressure reduction as required, guarantee that not only the secondary steam flash distillation is respond well, and can make steam jet ejector often be in rational working state, be one of primary condition condition that guarantees steam jet ejector system proper functioning.
2, can adapt to different heat load requirements, because the size of draining is relevant with heat load, heat load is big, and then draining is many, and water discharge time is long.Can ponding in the drying cylinder, help drying cylinder and conduct heat and drying course.
3, the floating drum volume of floating-tube type controlling device is bigger, and can satisfy buoyancy and overcome the gravity requirement, its top and positioning disk no-float, bottom and support rationally connect, and have better seal action, and stuck phenomenon can not occur.
4, reasonably the positioning disk structure can guarantee that into water is unimpeded, can not produce greater impact power to floating drum again.
5, the appropriate design of hollow floating drum in the floating-tube type controlling device and metering needle and being tightly connected has been guaranteed the effective adjusting of its metering needle to through-flow aperture.
Four, description of drawings
The original technology aperture plate of Fig. 1 structural representation
A kind of automatic adjustment hole plate structure schematic representation of Fig. 2 the utility model
The positioning disk structural representation of a kind of automatic adjusting orifice plate of Fig. 3 the utility model
The lower support frame structural representation of a kind of automatic adjusting orifice plate of Fig. 4 the utility model
In Fig. 1～4, upper flange 1, positioning disk 2, metering needle 3, floating drum 4, orifice plate tube wall 5, lower support frame 6, orifice plate 7, aperture 8, upper bracket 9
Fig. 1 is the orifice structure of original technology, comprises that there is an aperture 8 at orifice plate tube wall 5, orifice plate 7, orifice plate center.
Fig. 2 is the static structure schematic representation of a kind of automatic adjusting orifice plate of the utility model, at this moment, the floating drum 4 of floating-tube type controlling device drops on the lower support frame 6, the cylindrical upper end portion of the metering needle 3 of floating-tube type controlling device is positioned at positioning disk 2 center drums, and the conical lower end portion of the metering needle 3 of floating-tube type controlling device is arranged in aperture 8.
(5) embodiment
A kind of automatic adjusting orifice plate of the utility model contains abacus 7, aperture 8, orifice plate tube wall 5, also includes floating-tube type controlling device, upper flange 1, positioning disk 2 and upper bracket 9, lower support frame 6; The floating-tube type controlling device is sealedly and fixedly connected by the metering needle 3 at circular hollow floating drum 4 and floating drum center and forms, and the upper and lower end of its metering needle exposes cylindrical shell respectively; The metering needle 3 of floating-tube type controlling device is a hollow cylindrical, and its lower end is a cone, and the floating drum 4 of floating-tube type controlling device and metering needle 3 are made by corrosion resistant plate.
Upper bracket 9 and lower support frame 6 constitute by three supports and an annulus.
Positioning disk 2 is fixedlyed connected with the upper bracket 9 at upper flange 1 center, is positioned at the top of orifice plate 7, is sealedly and fixedly connected with orifice plate tube wall 5 simultaneously;
Between positioning disk 2 and orifice plate 7, lower support frame 6 is set, lower support frame 6 is sealedly and fixedly connected with orifice plate tube wall 5, at lower support frame 6 centers one circular hole is arranged, the shaft diameter of the metering needle 3 of its aperture and floating-tube type controlling device cooperatively interacts, lower support frame 6 guarantees that liquid can in time discharge, and to 3 fixing and leading roles of metering needle of floating-tube type controlling device.
The floating-tube type controlling device of a kind of automatic adjusting orifice plate of the utility model just is arranged between positioning disk 2 and the lower support frame 6, and leaves the space between the floating drum 4 of floating-tube type controlling device and the orifice plate tube wall 5.
The center of positioning disk 2 is the open circles tubular, and the shaft diameter of the metering needle 3 of the diameter of cylinder and floating-tube type controlling device cooperatively interacts, and extends a disk towards periphery from its cylinder, and the upper surface of disk therefrom mind-set edge has a gradient.Leave the space between positioning disk 2 and orifice plate tube wall 5 inboards.The inclined design of positioning disk 2 makes liquid not flow directly on the floating-tube type controlling device, can not produce impact force to the floating drum 4 of floating-tube type controlling device; Also open an aperture in positioning disk 2 center drum sides, when the metering needle 3 upper and lower motions of floating-tube type controlling device, so that the discharge of gas in the center drum of positioning disk 2.
The center in the positioning disk 2 of a kind of automatic adjusting orifice plate of the utility model, the metering needle 3 of floating-tube type controlling device, upper bracket 9, lower support frame 6, aperture 8 all is positioned at same axle center.
When quiet state, the metering needle 3 top column parts of floating-tube type controlling device are positioned at the center drum of positioning disk 2, and the metering needle 3 lower end tapered segments of floating-tube type controlling device pass the circular hole of lower support frame 6 and be positioned at 8 places, aperture of orifice plate 7, at this moment, the bottom surface of the floating drum 4 of floating-tube type controlling device is dropped on the lower support frame 6.
During work, the floating-tube type controlling device rises under buoyancy and the action of gravity in liquid or descends, when the buoyancy of influent is enough big, and the rising of floating-tube type controlling device, the lower end tapered segment of the metering needle 3 of floating-tube type controlling device promptly rises and leaves aperture 8, and liquid is 8 discharges from the aperture; After liquid was constantly discharged, buoyancy reduced, and the metering needle 3 of floating-tube type controlling device descends again until falling into 8 places, aperture, blocks the aperture 8 of orifice plate 7 fully.Like this, just the metering needle 3 by the floating-tube type controlling device moves up and down, and changes the discharge of the big or small controlling liquid in through-flow aperture 8, and steam then can not be discharged, and promptly makes liquid constantly discharge, and forms certain chock pressure difference again.
Claims (10)
1, a kind of automatic adjusting orifice plate contains abacus (7), aperture (8), orifice plate tube wall (5), it is characterized in that: also comprise floating-tube type controlling device, upper flange (1), positioning disk (2) and upper bracket (9), lower support frame (6); Described floating-tube type controlling device is sealedly and fixedly connected by the hollow floating drum (4) of circle and the metering needle (3) at floating drum center.
2, a kind of automatic adjusting orifice plate according to claim 1, it is characterized in that: the upper and lower end of the metering needle in the floating-tube type controlling device (3) exposes cylindrical shell respectively.
3, a kind of automatic adjusting orifice plate according to claim 1 and 2, it is characterized in that: the metering needle of floating-tube type controlling device (3) is a hollow cylindrical, its underpart is conical.
4, a kind of automatic adjusting orifice plate according to claim 1 is characterized in that: positioning disk (2) is fixedlyed connected with the upper bracket (9) at upper flange (1) center, leaves the space between positioning disk (2) and orifice plate tube wall (5) inboard.
5, a kind of automatic adjusting orifice plate according to claim 1 is characterized in that: upper bracket (9), lower support frame (6) constitute by three supports and an annulus.
6, a kind of automatic adjusting orifice plate according to claim 1 is characterized in that: between positioning disk (2) and orifice plate (7) lower support frame (6) is set, lower support frame (6) is fixedlyed connected with orifice plate tube wall (5) inner seal.
7, a kind of automatic adjusting orifice plate according to claim 1 is characterized in that: the floating-tube type controlling device is located between positioning disk (2) and the lower support frame (6), leaves the space between floating drum of floating-tube type controlling device (4) and the orifice plate tube wall (5).
8, a kind of according to claim 1 or 5 automatic adjusting orifice plate is characterized in that: there is a circular hole at lower support frame (6) center, and the shaft diameter of the metering needle (3) of its aperture and floating-tube type controlling device cooperatively interacts.
9, a kind of automatic adjusting orifice plate according to claim 1, it is characterized in that: the center of positioning disk (2) is the open circles tubular, the shaft diameter of the metering needle (3) of its drum diameter and floating-tube type controlling device cooperatively interacts; The center drum bottom of positioning disk (2) is extended a disk towards periphery, and the upper surface of disk therefrom mind-set edge has a gradient.
10, a kind of automatic adjusting orifice plate according to claim 1, it is characterized in that: the center of the metering needle (3) of positioning disk (2), floating-tube type controlling device, upper bracket (9), lower support frame (6), aperture (8) all is positioned at same axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256473 CN2502115Y (en) | 2001-11-02 | 2001-11-02 | Automatic regulating orifice plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256473 CN2502115Y (en) | 2001-11-02 | 2001-11-02 | Automatic regulating orifice plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502115Y true CN2502115Y (en) | 2002-07-24 |
Family
ID=33665433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256473 Expired - Fee Related CN2502115Y (en) | 2001-11-02 | 2001-11-02 | Automatic regulating orifice plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2502115Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179923A (en) * | 2015-09-07 | 2015-12-23 | 大连汇能科技股份有限公司 | Perforated-plate type water drainage device of pressure equalizing system |
-
2001
- 2001-11-02 CN CN 01256473 patent/CN2502115Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179923A (en) * | 2015-09-07 | 2015-12-23 | 大连汇能科技股份有限公司 | Perforated-plate type water drainage device of pressure equalizing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |