CN2433480Y

CN2433480Y - Coreless flow regulating device

Info

Publication number: CN2433480Y
Application number: CN 00225395
Authority: CN
Inventors: 吴光亮
Original assignee: LIANYUAN IRON AND STEEL GROUP CO Ltd
Current assignee: Liangang Department, Hualing Pipeline Co Ltd, Hunan
Priority date: 2000-08-07
Filing date: 2000-08-07
Publication date: 2001-06-06
Anticipated expiration: 2010-08-07

Abstract

The utility model discloses a coreless flow regulating device, which is mainly composed of a powder gas inlet pipe, a sweeping gas inlet pipe, a circular cover, an upper and a lower regulating pieces, a regulating rod, a sealing telescopic pipe, a sealing telescopic pipe fixing pipe, a connecting plate pipe, a driving device, etc., wherein, under the action of the driving device, the regulating rod is driven and the upper and the lower regulating pieces move in the radial direction, so the cross-sectional area of a fluid flow passage between the upper and the lower regulating pieces is changed so as to regulate the flow passing through a flow regulating device. The left powder in the regulating device can be cleaned at any time to ensure the flow of the powder gas owing to the sweeping gas inlet pipe, and the flow regulating device can automatically regulate the fluid flow on line and can accurately meter the fluid flow at a certain time or in a certain period.

Description

The centreless flow regulator

The utility model relates to a kind of flow regulator that does not have spool, be that FLUID TRANSPORTATION, particularly gas-solid mix the efficient apparatus of controlling its flow when carrying, can be applicable to use blowing process that molten iron is carried out handling outside the stove in smelter, the winding-up microalloy is finely tuned by the molten steel composition or the blowing desulfurization agent is carried out refining treatment etc. to molten steel.

Before the utility model, generally adopt common valve (as ball valve, gate valve etc.) control flow rate for gas, liquid, and when strength is carried pulvis (as solid particle), the general employing regulated winding-up jar and sprayed the aditus laryngis plate and come control flow rate with helping jet pressure reduction and combine the porous of fixing, the point of their deficiency is that the Flow-rate adjustment difficulty is big, must change the pressure distribution of whole injection system when regulating flow, can cause the injection system instability like this, thereby can not realize the stable conveying of gas-powder ratio; The reflection of flow measurement data lags behind, and the winding-up amount is untrue, can not accurately determine the instantaneous flow in the winding-up process; Transporting resistance is big, the conveyance conduit infraction easily takes place or produce fluid pulse.Before this case, " flow regulator of belt spool " submitted to, though can realize on-line automatic adjusting flow, stablizing gas-solid ratio carries, the flow value of accurate meter fluid, but because spool causes the jetting pressure of conveyance fluid to want high in the fluid passage, and the pressure loss is big, transporting resistance is big, and phenomenons such as fluid pulse or line clogging also easily take place.

Task to be solved in the utility model provide a kind of both can on-line automatic regulated fluid flow, and the system of realization constant voltage, stablize powder to air ratio conveying, fluid metering promptly and accurately, low, the little centreless flow regulator that fluid pulse or infraction do not take place again of the pressure loss of conveyance fluid jetting pressure.

For realizing that the technological scheme that above-mentioned task adopts is: at the round jacket one end powder gas inlet tube that is connected, and round jacket and powder gas inlet tube coaxial line, in the bilateral symmetry of powder gas inlet tube two cleaning gas inlet tubes are installed.Stretch into the circumferential ring of the annular that is connected on the section of powder air inlet inlet tube of round jacket inner chamber, the rise nodal plate of control powder throughput and an end of following adjustment sheet are stuck in tightly that this circle is solid to be encircled.Admittedly the stuffing box gland of peripheral tight cover that encircle at powder gas inlet tube, circle, up-down adjustment sheet three links to each other with the elastic material making, be connected at round jacket and powder gas outer pipe near powder gas outlet end, and round jacket and powder gas outer pipe coaxial line, the central lines of powder gas inlet tube and powder gas outer pipe.Rise nodal plate and following adjustment sheet are being round table-like near the formed body passage of washing of powder gas inlet tube one side, and its sectional shape is transited into rectangle or square by circle, and powder gas outer pipe is the horn mouth shape near rise nodal plate, following adjustment sheet one side.Symmetry two the sealing telescopic pipe fixed tube that are connected near the excircle of the round jacket of powder gas outlet end, of sealing telescopic pipe tightly be enclosed within it above, the other end of sealing telescopic pipe tightly is enclosed within on the web pipe, web pipe and drive unit are connected.Regulate an end that raises the adjustable lever of fluid passage sectional area between nodal plate and the following adjustment sheet and be connected with the up-down adjustment sheet respectively, and the other end passes round jacket, sealing telescopic pipe fixed tube, the center and the web Guan Tonglian of sealing telescopic pipe.Constituted centreless flow regulator described in the utility model like this.

Adopt technique scheme to solve the fluid flow regulation problem, its advantage is can online regulated fluid flow, realizes that system's constant voltage powder to air ratio carries, flow measurement promptly and accurately, the conveyance fluid jetting pressure is low, and the pressure loss is little, is difficult for taking place problems such as fluid pulse or infraction.

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.

Fig. 3 is that the B-B of Fig. 1 is to cross-sectional schematic.

As shown in Figure 1, at be connected powder gas inlet tube 1 with its coaxial line of round jacket 4 one ends, in the bilateral symmetry of powder gas inlet tube 1 two cleaning gas inlet tubes 2 are installed, the circle that stretches into the annular that is connected on the section of powder gas inlet tube 1 of round jacket 4 inner chambers encircles 12 admittedly.The rise nodal plate 5 of control powder throughput and following adjustment sheet 5 ' be installed in the inner chamber of round jacket 4, and raise nodal plate 5 and following adjustment sheet 5 ' an end be clamped on and roundly encircle on 12 surface of contact tight connecting, but relative movement admittedly.Admittedly encircle 12 at powder gas inlet tube 1, circle, raise nodal plate 5 and stuffing box gland 3 of making of elastic material of peripheral tight cover of linking to each other of adjustment sheet 5 ' three down.Near the powder gas outer pipe 11 that is connected on the round jacket 4 of powder gas outlet end with its coaxial line, and the central lines of powder gas inlet tube 1 and powder gas outer pipe 11, round jacket 4 is with powder gas inlet tube 1, powder gas outer pipe 11 three's coaxial lines simultaneously.Raise nodal plate 5 and following adjustment sheet 5 ' close formed fluid passage of powder gas outer pipe one side and be round table-like, its sectional shape is transited into rectangle or square by circle.Powder gas outer pipe 11 is forming the horn mouth shape near raising nodal plate 5 with following adjustment sheet 5 ' one sides, and its effect is the ejection that is beneficial to the pulvis in the cleaning regulator.Near powder gas outer pipe one side symmetry two sealing telescopic pipe fixed tube 10 are installed at round jacket 4, one of sealing telescopic pipe 6 tightly is enclosed within on the sealing telescopic pipe fixed tube 10, and the other end of sealing telescopic pipe 6 tightly is enclosed within web pipe 7, and web pipe 7 is connected with drive unit 8.The same adjustment sheet 5 of one end of adjustable lever 9, following adjustment sheet 5 ' be connected, and the other end of adjustable lever 9 passes round jacket 4 and the center that is connected in the sealing telescopic pipe fixed tube 10 on the round jacket 4 and tightly is enclosed within the sealing telescopic pipe of making of elastic material 6 on the sealing telescopic pipe fixed tube 10 is connected with web pipe 7, and drive unit 8 is equipped with in the outside of web pipe 7.So constituted a comparatively complete centreless flow regulator.When fluid (as the gas-solid mixture) during from powder gas inlet tube 1 person who lives in exile's flow regulator, can be according to the demand of fluid, start drive unit 8, drive web pipe 7, adjustable lever 9 is under the effect of drive unit 8, widen or dwindle raise nodal plate 5 and following adjustment sheet 5 ' between the fluid passage sectional area, as Fig. 1 or shown in Figure 3, just can realize increase or reduce fluid flow by regulator, with regulate to raise nodal plate 5 and following adjustment sheet 5 ' the related data of overall process of fluid passage sectional area import computer, the mathematical model of setting up regulated fluid channel cross-sectional area and fluid flow just can calculate the fluid flow value by flow regulator.

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

Claims

1, a kind of centreless flow regulator, by powder gas inlet tube (1), cleaning gas inlet tube (2), stuffing box gland (3), round jacket (4), raise nodal plate (5), following adjustment sheet (5 '), sealing telescopic pipe (6), web pipe (7), drive unit (8), adjustable lever (9), sealing telescopic pipe fixed tube (10), powder gas outer pipe (11) and the solid ring of circle formations such as (12), it is characterized in that being connected at round jacket (4) and powder gas inlet tube (1), in the bilateral symmetry of powder gas inlet tube (1) two cleaning gas inlet tubes (2) are installed, the solid ring of circle (12) is connected on the section of the powder gas inlet tube (1) that stretches into round jacket (4) inner chamber, an end that raises nodal plate (5) and following adjustment sheet (5 ') is clamped on the solid ring of circle (12), at powder gas inlet tube (1), solid ring of circle (12) and rise nodal plate (5), the peripheral tight cover stuffing box gland (3) that following adjustment sheet (5 ') three links to each other, be connected with powder gas outer pipe (11) at round jacket (4) near powder gas outlet end, symmetry is installed sealing telescopic pipe fixed tube (10) near the excircle of the round jacket (4) of powder gas outlet end, one of sealing telescopic pipe (6) tightly is enclosed within on the sealing telescopic pipe fixed tube (10), the other end tightly is enclosed within on the web pipe (7), web pipe (7) is connected with drive unit (8), one end of adjustable lever (9) is connected with raising nodal plate (5) and following adjustment sheet (5 '), is connected with web pipe (7) and the other end of adjustable lever (9) passes round jacket (4) and be connected in the sealing telescopic pipe fixed tube (10) on the round jacket (4) and tightly be enclosed within the center that seals the sealing telescopic pipe (6) on the telescopic pipe fixed tube (10).

2, centreless flow regulator according to claim 1 is characterized in that round jacket (4) is with powder gas inlet tube (1), powder gas outer pipe (11) coaxial line.