CN2432554Y

CN2432554Y - Flow regulator with valve core

Info

Publication number: CN2432554Y
Application number: CN 00225269
Authority: CN
Inventors: 吴光亮
Original assignee: LIANYUAN IRON AND STEEL GROUP CO Ltd
Current assignee: LIANYUAN IRON AND STEEL GROUP CO Ltd
Priority date: 2000-07-21
Filing date: 2000-07-21
Publication date: 2001-05-30
Anticipated expiration: 2010-07-21

Abstract

The utility model discloses a flow regulator with a valve core, mainly composed of a valve core outer cover, a valve core, a sealing cover, a sliding sleeve, a connecting rod, a draw rod, a sealing telescopic pipe, a coupling pipe plate, a driving device, etc., wherein, under the action of the driving device, the draw rod, the sliding sleeve, the connecting rod and the valve core are driven to move, so the position of the valve core in the valve core outer cover is changed. The fluid flow of the valve core is regulated with the change of the corresponding cross-sectional areas of the valve core and the valve core outer cover, the flow regulator can automatically regulate the fluid flow on line, can accurately measure the fluid flow at some time or in some period, and relates to an effective device for transferring the fluid, particularly for controlling the fluid flow in transferring the flow in gas and solid mixture.

Description

The flow regulator of belt spool

The utility model relates to a kind of flow regulator of belt spool, is the efficient apparatus of FLUID TRANSPORTATION flow control when particularly gas-solid mix to be carried.In smelter, can be applicable to molten iron be carried out handling outside the stove, or molten steel is carried out the composition fine setting to the winding-up microalloy or the blowing desulfurization agent is carried out refining treatment to molten steel, wait ownership B05B1/26 class with blowing process.

As background technology of the present utility model, when carrying out FLUID TRANSPORTATION, its important ring is its flow of control.Generally be to adopt common valve (as ball valve, gate valve etc.) to control its flow for gas, liquid.And when strength was carried pulvis (solid particle), the general employing regulated winding-up jar and come Control Flow with helping jet pressure reduction and combine the porous of the fixing aditus laryngis plate of jetting.Their weak point is: 1. the online adjusting difficulty of flow is big, must change the pressure distribution of total system when regulating flow.The injection system instability can be caused like this, and the gas-powder ratio constant delivery can not be realized; 2. flow metering data reflection lags behind, and inaccurate, and the winding-up amount is untrue, can not accurately determine the instantaneous delivery in the winding-up process; 3. transporting resistance is big, conveyance conduit easily takes place stop up or produce fluid pulse.

The purpose of this utility model be to provide the on-line automatic adjusting flow of a kind of energy and realize that the constant powder to air ratio of system's constant voltage (differential pressure) is carried, flow metering promptly and accurately, the flow regulator of belt spool that transporting resistance is little.

The technical scheme that adopts is for achieving the above object: the spool of an imitative hammer body shape is installed in the spool overcoat, is connected firmly a balance stem at the head near the spool of spool overcoat inlet end.Outlet jacket casing, spool, spool overcoat and sealing shroud concentric, the outlet sleeve connects firmly along axial line break-through sealing shroud and with the sealing shroud two ends, have the opening sliding tray of symmetry on outlet sleeve a section in sealing shroud, the connecting link two ends are passed this symmetrical opening sliding tray and are connected firmly together with being sleeved on the concentric stroking moving sleeve of outlet on the sleeve, and the middle part of connecting link and spool are connected into one.One end of pull bar and sliding sleeve connect firmly near a side of downstream chamber, and the circular hole that its other end passes on the close downstream chamber of sealing shroud one side connects firmly with a side that connects tube sheet, be fixedly connected with sealing telescopic tube stationary pipes in this circular hole outside, also be welded with sealing telescopic tube stationary pipes near sealing shroud one side at the connection tube sheet.The two ends of telescopic Sealed casing pipe are set on these two stationary pipes, and the opposite side and the drive unit that connect tube sheet connect firmly.Constituted the flow regulator of a comparatively complete belt spool like this.Fluid enters flow regulator from inlet, pull bar, sliding sleeve move to Way out under drive unit promotes, driving spool also moves to Way out, dwindle the sectional area that fluid passes through, reduce fluid flow, when the conical surface of spool maximum closely contacts with the face of boring the core outer casing inner wall, the sectional area that fluid passes through is zero, fluid flow reaches minimum value, otherwise, when spool moves to Way in, the sectional area that fluid passes through increases, fluid flow also increases thereupon, and when spool entered the direct tube section of spool overcoat, fluid flow became maximum.As above process is as long as record pull bar left and right horizontal displacement just can calculate corresponding fluid flow value with this apart from mathematical model with flow in this data input computing machine.

Adopt as mentioned above technical scheme to solve the fluid flow regulation problem, its advantage is can on-line automatic regulated fluid flow, need not change system pressure when regulating flow, can take constant voltage (or differential pressure) winding-up, reaches the winding-up of constant solid-gas ratio.Except that this, when fluid passed through spool, flow resistance was little, was difficult for taking place the obstruction and the pulse of fluid, also can determine certain moment or certain section interior fluid flow of time exactly.

Below in conjunction with accompanying drawing specific embodiments of the present utility model is described in further detail.

Fig. 1 is a forward cross-sectional schematic of the present utility model, also is specification digest accompanying drawing of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic.

As shown in Figure 1, the spool 4 of an imitative capitate is installed in spool overcoat 3, on head, is connected firmly balance stem 2 near the spool 4 of spool overcoat 3 inlets 1 end, its effect be keep spool 4 in spool overcoat 3 when axis moves disalignment not.Spool overcoat 3 is a direct tube section at close a section of entering the mouth 1 end, and another section is conical, and its inside surface tapering is consistent near the cone taper of the appearance of downstream chambers' 13 1 sides with spool 4, and is identical each other.Outlet jacket casing 14 and spool 4, spool overcoat 3 and sealing shroud 5 concentrics, outlet jacket casing 14 connects firmly along axial line break-through sealing shroud 5 and with sealing shroud 5 two ends.Have the opening sliding tray 15 of symmetry on outlet sleeve 14 a section sealing shroud 5 in, the width of this sliding tray 15 is greater than the transversal section of connecting link 6, and is mobile to guarantee that connecting link 6 freely comes and goes in sliding tray 15.And the length of sliding tray 15 is equal to or greater than the twice of spool 4 at spool external opculopathy 3 intrinsic displacement stroke CD.The two ends of connecting link 6 are passed this symmetrical opening sliding tray 15 and are connected firmly together with the concentric stroking moving sleeves 7 that are sleeved on the outlet sleeve 14, and the middle part of connecting link 6 and spool 4 are integrally welded.One end of pull bar 8 and sliding sleeve 7 connect firmly near a side of downstream chamber 13, and the circular hole that the other end of pull bar 8 passes on sealing shroud 5 close downstream chambers 13 1 sides connects firmly with connecting tube sheet 11, be fixedly connected with Sealed casing pipe stationary pipes 9 in the outside of this circular hole, close sealing shroud 5 one sides also are fixedly connected with the Sealed casing pipe stationary pipes on the tube sheet 11 connecting, the two ends of telescopic Sealed casing pipe 10 are set on these two stationary pipes 9, and the opposite side and the drive unit 12 that connect tube sheet 11 connect firmly.Like this, spool 4, connecting link 6, sliding sleeve 7, pull bar 8, Sealed casing pipe 10, connect tube sheet 11, drive unit 12 formed one can move freely connect firmly body, and pull bar 8, Sealed casing pipe stationary pipes 9, Sealed casing pipe 10, connect tube sheet 11 and drive bag and put 12 along axial line symmetrical expression layout.

Embodiment also is a most preferred embodiment of the present utility model as mentioned above.

Claims

1, a kind of flow regulator of belt spool, by balance stem (2), spool overcoat (3), spool (4), sealing shroud (5), connecting link (6), sliding moving sleeve (7), pull bar (8), sealing telescopic tube stationary pipes (9), sealing telescopic tube (10), connect tube sheet (11), drive unit (12), outlet sleeve compositions such as (14), it is characterized in that spool (4) is installed in the spool overcoat (3), the head of spool (4) is equipped with balance stem (2), outlet sleeve (14) passes and connects firmly with sealing shroud (5) two ends along the axis of sealing shroud (5), have symmetrical sliding tray (15) on outlet sleeve (14) a section sealing shroud (5) in, the two ends of connecting link (6) are passed sliding tray (15) and are connected firmly with the sliding sleeve (7) that is sleeved on the outlet sleeve (14), the middle part of connecting link (6) connects with spool (4), one end of pull bar (8) and sliding sleeve (7) connect firmly near a side of downstream chamber (13), the other end of pull bar (8) passes sealing shroud (5) and connects firmly with connecting tube sheet (11) near the circular hole on downstream chamber's (13) one sides, be fixedly connected with sealing telescopic tube stationary pipes (9) in the circular hole outside, one end of sealing telescopic tube (10) and sealing telescopic tube stationary pipes (9) cover connection, the other end of sealing telescopic tube (10) connects tube sheet (11) and connects firmly with drive unit (12) with connecting tube sheet (11) cover connection.

2, the flow regulator of belt spool according to claim 1 is characterized in that spool (4) is consistent with the inside surface tapering of spool overcoat (3) by the outside surface tapering of outlet (13) one sides, coincide mutually.

3, the flow regulator of belt spool according to claim 1 and 2 is characterized in that the length of sliding tray (15) is equal to or greater than the twice of the displacement stroke CD of spool (4) in spool overcoat (3).