CN103830928B - The on-line control device and method of destilling tower drain hole - Google Patents
The on-line control device and method of destilling tower drain hole Download PDFInfo
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- CN103830928B CN103830928B CN201210492607.7A CN201210492607A CN103830928B CN 103830928 B CN103830928 B CN 103830928B CN 201210492607 A CN201210492607 A CN 201210492607A CN 103830928 B CN103830928 B CN 103830928B
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- drain hole
- connecting rod
- fixed connecting
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Abstract
Present invention is disclosed a kind of on-line control device and method of destilling tower drain hole, be installed on the tower tray with drain hole, comprise fixed connecting rod, clamp nut, top shrouding, liquid material deflector, small-bore drain hole plate, bottom fagging.Fixed connecting rod, vertically near the inner surface of drain hole, flushes with the lower surface of tower tray bottom it, and bottom fagging is connected to the bottom of fixed connecting rod, near the lower surface of tower tray.At the upper surface of tower tray, set gradually small-bore drain hole plate, top shrouding and clamp nut from the bottom up.Liquid material deflector is one block of plectane, and its center has a semicircle orifice, and for penetrating fixed connecting rod, what be connected mutually with two summits up and down of semicircle orifice has a rectangular notch, and rectangular notch opens the edge to liquid material deflector.Small-bore drain hole plate is plectane, and center has the first circular hole, and for making fixed connecting rod pass, its plectane also separately has the second circular hole, its diameter is less than the distance between rectangular notch both sides.
Description
Technical field
The present invention relates to the aperture adjustment technology of drain hole on chemical industry distillation column reaction device tower tray, more particularly, relate to a kind of on-line control device and method of destilling tower drain hole
Background technology
In the prior art, there is not yet and regulation technology is carried out, also more without the concept of on-line control to the tower tray class drain hole of chemical plant installations.Conventional drain hole processing method is the drain hole adopting welding technology repairing or shutoff tower tray, but because of in explosion-proof area operation, if adopt the existing conventional method of drain hole on welding technology is repaired or shutoff has been in running status chemical industry distillation column reaction device tower tray, whole production line must to be stopped operation, the stopping production of long period will be caused, bring the loss of target profit thus.In addition, owing to needing detaching device related facility because of drain hole repairing work, there is the operating expenses of great number thus.
Summary of the invention
Object of the present invention aims to provide a kind of on-line control device and method of destilling tower drain hole, solves the various deficiencies existed in prior art.
According to the present invention, a kind of on-line control device of destilling tower drain hole is provided, is installed on the tower tray with drain hole, comprise fixed connecting rod, clamp nut, top shrouding, liquid material deflector, small-bore drain hole plate, bottom fagging.Fixed connecting rod, vertically near the inner surface of drain hole, flushes with the lower surface of tower tray bottom it, and bottom fagging is connected to the bottom of fixed connecting rod, near the lower surface of tower tray.At the upper surface of tower tray, set gradually small-bore drain hole plate, top shrouding and clamp nut from the bottom up.Liquid material deflector is one block of plectane, and its center has a semicircle orifice, and for penetrating fixed connecting rod, what be connected mutually with two summits up and down of semicircle orifice has a rectangular notch, and rectangular notch opens the edge to liquid material deflector.Described small-bore drain hole plate is made up of one block of cylinder sheet metal, its center has a circular hole, small-bore drain hole plate circle hole centreline, 45 degree and-45 degree three straight lines concentric with the center of circle of the circular hole of small-bore drain hole plate, radius be some millimeters camber line intersect three positions on, have three circular holes that diameter is different, have four vees at the surrounding correspondence position of described small-bore drain hole plate; The width of described rectangular notch is greater than maximum gauge in three different circular holes of diameter on small-bore drain hole plate.。
According to one embodiment of the invention, fixed connecting rod is a round steel, and its top car has one section of external screw thread, and for being connected with a joggle with clamp nut, its top has a rectangular notch.
According to one embodiment of the invention, bottom fagging is a rectangle cuboid by stage casing, and two ends are kidney type steel plates that a semicircle cylinder forms, and are connected as one by electric welding with fixed connecting rod.
According to one embodiment of the invention, top shrouding is one block of cylinder steel plate, and its center has a circular hole, for penetrating fixed connecting rod.
According to a further aspect in the invention, a kind of on-line control method of destilling tower drain hole is also provided, comprise the following steps: the top of the L-type component formed after being linked by fixed connecting rod and bottom fagging being inserted benzol hydro refining unit extraction distillation tower, original heavy caliber drain hole inner surface on the tower tray being positioned at non-aromatics reative cell; Make the side of fixed connecting rod near tower tray on the inner surface of original heavy caliber drain hole; The bottom fagging of L-type member lower is made to catch on tower tray lower surface side; Round-meshed small-bore drain hole plate, liquid material deflector, top shrouding and clamp nut with notch in tower tray front successively mounting strap, be fixed on the inner side edge of original large mouth drain hole on tower tray along upper by drain hole adjusting device; Rotate small-bore drain hole plate, make circular hole corresponding with the position of notch; Keep fixed connecting rod non rotating, and screw clamp nut.
Have employed technical scheme of the present invention, abandon the routine techniques of the drain hole diameter adjustment needing fire operation just can complete, the employing welding technology of routine is repaired or tower tray drain hole method that shutoff is in the destilling tower of explosion-proof area propose a kind of need not the technical scheme of on-line control drain hole of fire operation, the core technology of this technical scheme be in narrow space and tower tray drain hole periphery without fixing a kind of special drain hole adjusting device when fixed component, all drawbacks economically, in safety overcoming that fire operation brings thus.
Accompanying drawing explanation
In the present invention, identical Reference numeral represents identical feature all the time, wherein:
Fig. 1 is benzol hydro refining unit extraction distillation tower structural representation;
Fig. 2 is tower tray drain hole adjusting device schematic diagram of the present invention;
Fig. 3 is the front view of fixed connecting rod;
Fig. 4 is the left view of fixed connecting rod;
Fig. 5 is the top view of fixed connecting rod;
Fig. 6 is the front view of top shrouding;
Fig. 7 is the top view of top shrouding;
Fig. 8 is the front view of liquid material deflector;
Fig. 9 is the top view of liquid material deflector;
Figure 10 is the front view of small-bore drain hole plate;
Figure 11 is the top view of small-bore drain hole plate;
Figure 12 is tower tray drain hole adjusting device scheme of installation;
Figure 13 is drain hole on-line control device operation principle schematic diagram.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with drawings and Examples.
Realize the object of the invention key to be: the first, special drain hole adjusting device structure must realize relying on the compacting part of device self to be fixed on tower tray.Second, special drain hole adjusting device structure must realize original drain hole and special adjusting device configure tower tray drain hole compatibility, so-called compatibility refers to, the drain hole that special adjusting device configures should realize regulating effect in the small space of the original drain hole of tower tray.
As shown in Figure 1, be non-aromatics reative cell above tower tray A, below is lean solvent reative cell, originally has drain hole B1, B2 that several diameters are slightly large.Now because operational factor change needs to be diminished by drain hole diameter and even the indivedual drain hole of shutoff.For realizing online shutoff or regulating distillation reaction room, extraction distillation tower top tower tray drain hole, must a special tower tray drain hole adjusting device.
As shown in Figure 2, tower tray drain hole adjusting device of the present invention is made up of six parts such as fixed connecting rod 1, clamp nut 2, top shrouding 3, liquid material deflector 4, small-bore drain hole plate 5, bottom faggings 6.Six parts all adopt high-quality stainless steel, adopt high-quality stainless steel to be that high-quality stainless steel can meet the higher requirement for anticorrosion of device in view of this device is just placed in the extremely strong reative cell of corrosivity once use for a long time.Fixed connecting rod 1 and bottom fagging 6 are connected as one by electric welding, then on fixed connecting rod 1, small-bore drain hole plate 5, liquid material deflector 4, top shrouding 3 is penetrated from the bottom to top, finally with clamp nut 2 each device tightened and be integrated, be fixed on the drain hole B place of tower tray A.
As shown in Fig. 3,4,5, fixed connecting rod 1 is made up of a round steel, and top car has one section of external screw thread 101, for being connected with a joggle with clamp nut 2.The top of fixed connecting rod 1 has a rectangular notch 102, after inserting notch 102 for screwdriver, when rotatably compressing nut 2, fixed connecting rod 1 is not rotated with turning clamp nut 2, make the bottom fagging 6 be connected as a single entity with fixed connecting rod 1 maintain the 180 degree of positions corresponding to drain hole B all the time to immobilize, in order to avoid bottom fagging 6 covers drain hole B.Another effect of fixed connecting rod 1 top notch 102 is the centerline parallel mark level 180 degree of positions by notch 102 direction and bottom fagging 6, to need according to the operational factor of device the horizontal level adjusting small-bore drain hole plate 5.
Bottom fagging 6 is a rectangle cuboid by stage casing, and two ends are kidney type steel plates that a semicircle cylinder forms.
As shown in Figure 6 and Figure 7, top shrouding 3 is made up of one block of cylinder steel plate, and the center of top shrouding has a circular hole, for penetrating fixed connecting rod 1.
As shown in Figure 10 and Figure 11, small-bore drain hole plate 5 is made up of one block of cylinder sheet metal, and its center has a circular hole, for penetrating fixed connecting rod 1.Small-bore drain hole plate circle hole centreline, 45 degree and-45 degree three straight lines concentric with the center of circle of the circular hole of small-bore drain hole plate, radius be some millimeters camber line intersect three positions on, have three circular holes 501,502,503 that diameter is different, in order to according to different technological parameter operation conditions, different small-bore drain holes is selected to substitute original heavy caliber drain hole.Have four vees at the surrounding correspondence position of small-bore drain hole plate 5, the below of breach mark respectively " greatly ", " in ", " little ", " closing " font.Wherein, " greatly ", " in ", " little " in order to refer to the drain hole of different bore, " closing " is fully closed in order to refer to drain hole.
As shown in Figure 8 and Figure 9, liquid material deflector 4 is made up of one block of cylinder steel plate, and its center has a semicircle orifice, for penetrating fixed connecting rod.What be connected mutually with two summits up and down of semicircle orifice has a rectangular notch 401, the width of rectangular notch 401 is greater than the object of the diameter of maximum drain hole on small-bore drain hole plate 5, in order to all drain holes on small-bore drain hole plate 5 can be made to play a role, otherwise drain hole larger than rectangular notch 401 opening on small-bore drain hole plate 5 will lose due effect because of the part shutoff of liquid material deflector 4.Under the rectangular notch 401 of liquid material deflector 4 and the effect of top shrouding 3, small-bore drain hole plate 5, forming one only at the hemi-closure space of device lower right end opening, flowing to small-bore drain hole plate 5 for guiding liquid material in lean solvent reative cell.
Below by the on-line control of drain hole on tower tray A in the non-aromatics reative cell D of certain benzol hydro refining unit extraction distillation tower top, structure and the installation of apparatus of the present invention are described.
As shown in Figure 1, tower tray A originally having two diameters is 9.6mm drain hole B1 and drain hole B2.By run parameter at that time, to gasify the pressure produced corresponding to liquid material in the lean solvent reative cell C of extraction distillation tower bottom, on non-aromatics reative cell D tower tray, drain hole B diameter should be 4mm.That is, need complete for drain hole B1 shutoff, need the diameter of drain hole B2 to be adjusted to 4mm by 9.6mm in addition.
As shown in Figure 2, tower tray drain hole adjusting device is made up of six parts such as fixed connecting rod 1, clamp nut 2, top shrouding 3, liquid material deflector 4, small-bore drain hole plate 5, bottom faggings 6.Six parts all adopt model to be 1Cr18Ni9Ti high-quality stainless steel, adopt high-quality stainless steel to be that high-quality stainless steel can meet the higher requirement for anticorrosion of device in view of this device is just placed in the extremely strong reative cell of corrosivity once use for a long time.Fixed connecting rod 1 and bottom fagging 6 are connected as one by electric welding, then on fixed connecting rod 1, penetrate small-bore drain hole plate 5, liquid material deflector 4, top shrouding 3 from the bottom to top, finally to be tightened by each device with clamp nut and are integrated.
As shown in Fig. 3,4,5, fixed connecting rod 1 is 4mm by a diameter, and length is that the round steel of 16mm is made, and the top car of fixed connecting rod 1 has one section of external screw thread, for being connected with a joggle with clamp nut 2.It is 2mm that the top of fixed connecting rod 1 has a width, it is highly 3mm notch, for passing through screwdriver (other equipment, not shown) insert after notch, when rotatably compressing nut 2, fixed connecting rod 1 not being rotated with turning clamp nut 2, making the bottom fagging 6 be connected as a single entity with fixed connecting rod 1 maintain the 180 degree of positions corresponding to drain hole A all the time and immobilizing, in order to avoid bottom fagging 6 covers drain hole A.Another effect of fixed connecting rod 1 top notch is the centerline parallel mark level 180 degree of positions by notch direction and bottom fagging 6, to need according to the operational factor of device the horizontal level adjusting small-bore drain hole plate 5.
Bottom fagging 6 is a width by stage casing is 4mm, and length is 8mm, and thickness is 4mm rectangle cuboid, and two ends are kidney type steel plates that a diameter forms for the semicircle cylinder of 4mm.
As shown in Figure 6 and Figure 7, top shrouding 3 is 20mm by one piece of diameter, and thickness is that the cylinder steel plate of 3mm is made, and it is the circular hole of 4mm that the center of top shrouding 3 has a diameter, for penetrating fixed connecting rod 1.
As shown in Figure 8 and Figure 9, liquid material deflector 4 is 20mm by one piece of diameter, and thickness is that the cylinder steel plate of 3mm is made, and it is the semicircle orifice of 5mm that the center of liquid material deflector 4 has a diameter, for penetrating fixed connecting rod 1.The width that has be connected mutually with two summits up and down of semicircle orifice is 5mm, it is highly the rectangular notch of 3mm, the width of rectangular notch is greater than the diameter object of maximum drain hole on small-bore drain hole plate 5, in order to drain hole on small-bore drain hole plate 5 can be made to play a role, otherwise drain hole larger than rectangular notch opening on small-bore drain hole plate 5 will lose due effect because of the part shutoff of liquid material deflector 4.Under the rectangular notch of described liquid material deflector 4 and top shrouding 3, small-bore drain hole plate 5 act on, form one only at the hemi-closure space of device lower right end opening, described hemi-closure space flows to small-bore drain hole plate 5 for guiding liquid material in lean solvent reative cell C.
As shown in Figure 10 and Figure 11, small-bore drain hole plate 5 is 20mm by one piece of diameter, and thickness is that the cylinder book steel plate of 1mm is made, and it is the circular hole of 4mm that the center of small-bore drain hole plate 5 has a diameter, for penetrating fixed connecting rod 1.Small-bore drain hole plate 5 circle hole centreline, 45 degree and 315 degree of three bar straight lines concentric with the center of circle of the circular hole of small-bore drain hole plate 5, radius be 5mm camber line intersect three positions on, have three circular holes that diameter is respectively 3mm, 4mm, 5mm, in order to according to different technological parameter operation conditions, different small-bore drain holes is selected to substitute original heavy caliber drain hole.Have four vees at the surrounding correspondence position of small-bore drain hole plate 5, the below of breach mark respectively " greatly ", " in ", " little ", " closing " font.Wherein, " greatly ", " in ", " little " in order to refer to the drain hole of different bore, " closing " is fully closed in order to refer to drain hole.
As shown in figure 12, by linked the rear L-type component formed by fixed connecting rod 1 and bottom fagging 6 and insert benzol hydro refining unit extraction distillation tower top non-aromatics reative cell D in original heavy caliber drain hole inside on tower tray A, and make the right-hand member of connecting rod 1 near heavy caliber drain hole right-hand member original on interior tower tray A, the bottom fagging 6 of L-type member lower is utilized to catch on tower tray A reverse side side, by being arranged on the small-bore drain hole plate 5 in tower tray A front, liquid material deflector 4, drain hole adjusting device is fixed on the inner side edge of original large mouth drain hole on tower tray A along upper by top shrouding 3 and clamp nut 2 firmly.
Concrete installation steps are: after destilling tower is out of service, emptying non-aromatics reative cell D liquid material, pull down destilling tower top manhole blind plate E, operating personnel enters non-aromatics reative cell D by entering manhole, stand on tower tray A, the order assembling drain hole adjusting device arranged by accompanying drawing 2 tower tray drain hole adjusting device assembly drawing, drain hole adjusting device to be inserted in drain hole B2 and to make small-bore drain hole plate 5, bottom fagging 6 is clipped in dish A positive and negative both sides, grasp fixed connecting rod 1 and rotate fixed connecting rod 1 to fixed connecting rod 1 top slot mouth horizontal direction and be in 180 degree of positions, tighten up clamp nut 2 slightly, rotate by hand small-bore drain hole plate 5 to top label be " in " gap position consistent with the notch horizontal direction at fixed connecting rod 1 top, rotating liquid material diversion plate 4, make material diversion plate 4 notch direction with small-bore drain hole plate 5 to top label be " in " breach direction contrary, with screwdriver (other facilities, not shown) insert the notch at fixed connecting rod 1 top, and keep non rotating, with fork spanner (other facilities, not shown) rotatably compress nut 2 to drain hole adjusting device and be securely fixed on tower tray A.Then at drain hole B1 place, drain hole adjusting device is installed, installation method and preceding method basic simlarity, uniquely unlike, small-bore drain hole plate 5 to top label should be made to be that the gap position of " closing " is consistent with the notch horizontal direction at fixed connecting rod 1 top.
As shown in figure 13, after drain hole on-line control device installs in the drain hole B2 of tower tray A, most of region of former 9.6mm heavy caliber drain hole B2 is fixed connecting rod 1, small-bore drain hole plate 5 seals, liquid material in non-aromatics reative cell D on tower tray A is only from the inflow lower floor non-aromatics reative cell of 501 or 502 or 503 3 small-bore tear discharge orifices, because the diameter of the liquid material deflector 4 above small-bore drain hole plate 5 is identical with the diameter of small-bore drain hole plate 5, therefore, on small-bore drain hole plate 5, three apertures have at least 2 to be sealed by liquid material deflector 4, only stay next consistent with the U-type groove mouth of liquid material deflector 4 aperture 502 ability and lean solvent reative cell C to logical, thus achieve drain hole and be adjusted to by B2 heavy caliber 502 small-bore online.
The invention has the beneficial effects as follows:
1. the usual processing method of existing tower tray drain hole is stopped using at whole production line, adopts welding technology shutoff or repair tower tray drain hole.Conventional method not only, target profit that loss larger large to Influence of production, the maintenance cost that expenditure is larger that drain hole is repaired in electric welding.Special small-bore drain hole plate is fixed on tower tray by adopting L-type fixed component by the technology of the present invention, need not fire operation.
2. existing electric welding repairs drain hole conventional method after electric welding repairing is complete, and drain hole size immobilizes, if the change of technological parameter, is stopped by device again, again and again, seriously have impact on the stability of production thus.The inventive method is provided with several drain holes differed in aperture on small-bore drain hole, under meeting different technical parameters, adopt different drain holes, even can need the former heavy caliber drain hole of complete shutoff according to technique.
Those of ordinary skill in the art will be appreciated that, above description is only one or more embodiments in the numerous embodiment of the present invention, and not uses limitation of the invention.Any equalization for the above embodiment changes, modification and the equivalent technical scheme such as to substitute, as long as spirit according to the invention, all will drop in scope that claims of the present invention protect.
Claims (5)
1. an on-line control device for destilling tower drain hole, is installed on the tower tray with drain hole, it is characterized in that, comprising:
Fixed connecting rod, clamp nut, top shrouding, liquid material deflector, small-bore drain hole plate, bottom fagging;
Described fixed connecting rod, vertically near the inner surface of described drain hole, flushes with the lower surface of described tower tray bottom it, and described bottom fagging is connected to the bottom of described fixed connecting rod, near the lower surface of described tower tray;
At the upper surface of described tower tray, set gradually described small-bore drain hole plate, top shrouding and clamp nut from the bottom up;
Described liquid material deflector is one block of plectane, and its center has a semicircle orifice, and for penetrating fixed connecting rod, what be connected mutually with two summits up and down of described semicircle orifice has a rectangular notch; Described rectangular notch opens the edge to described liquid material deflector;
Described small-bore drain hole plate is made up of one block of cylinder sheet metal, its center has a circular hole, small-bore drain hole plate circle hole centreline, 45 degree and-45 degree three straight lines concentric with the center of circle of the circular hole of small-bore drain hole plate, radius be some millimeters camber line intersect three positions on, have three circular holes that diameter is different, have four vees at the surrounding correspondence position of described small-bore drain hole plate; The width of described rectangular notch is greater than maximum gauge in three different circular holes of diameter on small-bore drain hole plate.
2. the on-line control device of destilling tower drain hole as claimed in claim 1, is characterized in that:
Described fixed connecting rod is a round steel, and its top car has one section of external screw thread, and for being connected with a joggle with described clamp nut, its top has a rectangular notch.
3. the on-line control device of destilling tower drain hole as claimed in claim 1, is characterized in that:
Described bottom fagging is a rectangle cuboid by stage casing, and two ends are kidney type steel plates that a semicircle cylinder forms, and are connected as one by electric welding with described fixed connecting rod.
4. the on-line control device of destilling tower drain hole as claimed in claim 1, is characterized in that:
Described top shrouding is one block of cylinder steel plate, and its center has a circular hole, for penetrating fixed connecting rod.
5. an on-line control method for destilling tower drain hole, is characterized in that, comprise the following steps:
The L-type component formed after being linked by fixed connecting rod and bottom fagging is inserted the top of benzol hydro refining unit extraction distillation tower, original heavy caliber drain hole inner surface on the tower tray being positioned at non-aromatics reative cell;
Make the side of described fixed connecting rod near the inner surface of heavy caliber drain hole original on tower tray;
The bottom fagging of described L-type member lower is made to catch on tower tray lower surface side;
Round-meshed small-bore drain hole plate, liquid material deflector, top shrouding and clamp nut with notch in tower tray front successively mounting strap, be fixed on the inner side edge of original large mouth drain hole on tower tray along upper by drain hole adjusting device;
Rotate described small-bore drain hole plate, make described circular hole corresponding with the position of described notch;
Keep described fixed connecting rod non rotating, and screw described clamp nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492607.7A CN103830928B (en) | 2012-11-28 | 2012-11-28 | The on-line control device and method of destilling tower drain hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492607.7A CN103830928B (en) | 2012-11-28 | 2012-11-28 | The on-line control device and method of destilling tower drain hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103830928A CN103830928A (en) | 2014-06-04 |
| CN103830928B true CN103830928B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210492607.7A Expired - Fee Related CN103830928B (en) | 2012-11-28 | 2012-11-28 | The on-line control device and method of destilling tower drain hole |
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| CN (1) | CN103830928B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201978Y (en) * | 1992-04-13 | 1995-06-28 | 中国石油天然气总公司华东勘察设计研究院 | High-efficiency liquid distributor |
| US6413378B1 (en) * | 1998-04-07 | 2002-07-02 | Nippon Zeon Co., Ltd. | Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification |
| CN2851696Y (en) * | 2005-11-28 | 2006-12-27 | 褚雅志 | Anti-stripping fastener with bubbling function for tower and connection hole thereof |
-
2012
- 2012-11-28 CN CN201210492607.7A patent/CN103830928B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2201978Y (en) * | 1992-04-13 | 1995-06-28 | 中国石油天然气总公司华东勘察设计研究院 | High-efficiency liquid distributor |
| US6413378B1 (en) * | 1998-04-07 | 2002-07-02 | Nippon Zeon Co., Ltd. | Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification |
| CN2851696Y (en) * | 2005-11-28 | 2006-12-27 | 褚雅志 | Anti-stripping fastener with bubbling function for tower and connection hole thereof |
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|---|---|
| CN103830928A (en) | 2014-06-04 |
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Granted publication date: 20160302 Termination date: 20181128 |