CN103672849B - Dismountable throttle orifice mechanism and mounting and dismounting tool - Google Patents
Dismountable throttle orifice mechanism and mounting and dismounting tool Download PDFInfo
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- CN103672849B CN103672849B CN201310631366.4A CN201310631366A CN103672849B CN 103672849 B CN103672849 B CN 103672849B CN 201310631366 A CN201310631366 A CN 201310631366A CN 103672849 B CN103672849 B CN 103672849B
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Abstract
The invention relates to a dismountable throttle orifice mechanism and a mounting and dismounting tool, and solves the problem that an existing throttle orifice is inconvenient to mount and dismount and time consuming and labor consuming, and causes damage to a pipeline or distributor. The dismountable throttle orifice mechanism comprises a distributor provided with a distributor liquid outlet and a throttle orifice component, a mounting hole is formed in the distributor and in the direction opposite to the liquid outlet, a pipe joint is mounted at the position of the distributor liquid outlet, the throttle orifice component is connected in the pipe joint in a threaded manner, a throttle hole is formed in the top end face of the throttle orifice component and communicated with an inner hole of the throttle orifice component, and a thread plug is sleeved in the mounting hole. The mounting and dismounting tool comprises a rod, and a polygonal boss matched with the lower section of the inner hole of the throttle orifice component is mounted at the top end of the rod. The dismountable throttle orifice mechanism and the mounting and dismounting tool are used cooperatively, so that the throttle orifice component is mounted and dismounted simply, feasibly, rapidly and conveniently without damaging the distributor or relevant pipelines.
Description
Technical field
The present invention relates to a kind of throttle orifice mechanism and dismounting instrument, be applicable to discharge in gasification furnace or water-tube boiler water/vapour heat-transfer area boiler tube and regulate.
Background technology
Gasification furnace or water-tube boiler water/vapour system generally adopt forced circulation system, namely utilize the pressure head that circulating pump provides, and ensure the stable operation of recirculated water/vapour system.Due to forced circulation, how ensureing the monambiguity of each recirculated water/vapour system circuit HYDRODYNAMIC CHARACTERISTICS and metal tube water-cooling wall homogeneous temperature and not overtemperature, is the precondition ensureing system safety operation.
Restricting orifice is one of restricting element, usual restricting orifice to be directly welded on distributor or in the pipeline that is connected with distributor, its effect is required to introduce in different arms according to design discharge by the water in distributor, technical staff can install the restricting orifice of different pore size on distributor according to the structure of each pipe in water/steam pipework loop and length and institute's affected by hot loading situation, need consider when determining the opening diameter of restricting orifice to avoid water/vapour system pulsation simultaneously, prevent hydrodynamic force ambiguity, and the minimizing of thermal deviation.Because its structure is simple, be easy to processing, the advantages such as low cost of manufacture are widely used in water-tube boiler and gasification furnace reative cell fin panel casing forced circulation system, play vital effect to the safe operation of device.But restricting orifice is generally arranged on arm pipeline water inlet end, it is generally the aperture being determined restricting orifice by theory calculate and experiment test.But in the building course of circulatory system parts, as pipe inside weld reinforcement, bend forming, tube bank length, actual local heat load etc. have difference with input data, need according to practical operation situation adjustment restricting orifice aperture.Before pump, circulating water strainer filter element lost efficacy and to cause in system the foreign material such as slag, scale blocking restricting orifice or restricting orifice passage is reduced, caused water-cooling wall metal overtemperature, booster and then affected the driving operation of device, must clear up the foreign material before restricting orifice.But current restricting orifice generally welds with pipeline, as will be changed, adjust restricting orifice aperture to restricting orifice, or in cleaning orifice plate, foreign material must carry out pipe cutting and reprocess.Need when reprocessing to carry out flow rate test etc. in pipe cutting, polishing, preheating, welding, Non-Destructive Testing, heat treatment, the water pressure test, pipe, plenty of time need be spent, as certain device gasification furnace water-steam system pipe throttle orifice plate blocking cleaning takes 2 months, the driving having a strong impact on device runs.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, providing that a kind of structure is simple, dismounting is very easy, regulating flow quantity, safeguard that simple installation, operating cost are low, the dismountable throttle orifice mechanism of long service life.
The present invention also provides a kind of dismounting instrument for throttle orifice component dismounting in above-mentioned dismountable throttle orifice mechanism, has dismounting easy, time saving and energy saving, the advantage that operating efficiency is high.
Dismountable throttle orifice mechanism of the present invention, comprise the distributor and throttle orifice component that are provided with distributor liquid outlet, described distributor liquid outlet relative direction offers installing hole, described distributor liquid outlet is equipped with pipe joint, described joint internal thread is connected with described throttle orifice component, the top end face of described throttle orifice component has throttle orifice, and described throttle orifice is communicated with the endoporus of throttle orifice component, and described installing hole inner sleeve has plug.
The back segment cross section of described endoporus is polygon.
The endoporus back segment internal diameter of described pipe joint is greater than leading portion internal diameter; The external diameter of described throttle orifice component back segment is greater than the external diameter of leading portion, and back segment outer wall is provided with the external screw thread coordinated with joint internal thread, and leading portion is set with spring, and the end face of described spring compresses with the end face of pipe joint endoporus back segment and contacts.
Described distributor is also equipped with the tubular flange corresponding with installing hole.
Dismounting instrument of the present invention, comprises barred body, and the polygon boss mated with the endoporus back segment of throttle orifice component is equipped with on the top of described barred body.
Described polygon boss is provided with the throttle orifice limit stick that diameter is less than throttle orifice.
The bottom of described barred body is provided with handle.
In the present invention, inventor overcomes the traditional idea that conventional throttle orifice plate assembly only can be fixed with the form of welding and distributor, and throttle orifice component be connected with pipe joint with the form be threaded, the form be obviously threaded can meet the requirement of dismounting.Pipe joint endoporus back segment internal diameter is greater than leading portion internal diameter, like this can by the spring compression that is sleeved in throttle orifice component at the top of endoporus back segment, on the basis that throttle orifice component is connected with pipe joint screw thread, increase the elastic compensating effect of spring, avoid loosening because fluid impact throttle orifice component causes and coming off.The external diameter of described throttle orifice component back segment is greater than the external diameter of leading portion, and utilize the outer pocketed springs of leading portion, back segment then can be used as the object that spring base plays common holddown spring.The order designing described installing hole is that easy disassembly instrument and throttle orifice component into and out of distributor, realize fast assembling-disassembling by installing hole in order to when throttle orifice component carries out dismounting; In installing hole, be then set with plug during normal operating condition keep airtight.
Dismounting instrument of the present invention is used for the dismounting of throttle orifice component in throttle orifice mechanism, the polygon boss at its top can be inserted in polygonal hole corresponding to described throttle orifice component back segment cross section, throttle orifice component is driven to rotate by revolving force, realize the screwed tight between throttle orifice component and pipe joint, and what polygon boss was provided with is provided with throttle orifice limit stick, can first insert in the throttle orifice of throttle orifice component during installation, when can avoid on the one hand throttle orifice component being sent into pipe joint by installing hole or taking out, throttle orifice component comes off from instrument, on the other hand when installing or removing, also the object of centering location is played, realize efficient installation and removal.
Beneficial effect:
Structure of the present invention is very simple, disassembled and assembled freely is realized with being threaded of pipe joint by throttle orifice component, the reliability be threaded is ensured further by spring, smooth feeding or the taking-up of throttle orifice component is realized by installing hole, the efficient dismounting of throttle orifice component is realized by special dismounting instrument, whole disassembly process is fast and convenient, do not destroy distributor or associated conduit, can just block clearing quickly and easily, or throttle orifice is transformed, greatly save the time changed or needed for cleaning throttle orifice component attachment, avoid the welding brought when usually carrying out above operation, Non-Destructive Testing, the work that heat treatment and the water pressure test etc. bring, there is wide market application foreground.
Accompanying drawing explanation
Fig. 1 is the structural representation of dismountable throttle orifice mechanism of the present invention.
Fig. 2 is the structural representation of dismounting instrument of the present invention.
Fig. 3 is dismounting view.
Wherein, 1-pipe joint, 1.1-endoporus, 1.11-leading portion, 1.12-back segment, 2-spring, 3-throttle orifice component, 3.1-throttle orifice, 3.2-endoporus, 3.3-leading portion, 3.4-back segment, 4-distributor, 5-tubular flange, 6-plug, 7-distributor liquid outlet, 8-installing hole, 9-barred body, 10-polygon boss, 11-throttle orifice limit stick, 12-handle.
Detailed description of the invention
Below in conjunction with accompanying drawing, explanation is further explained to the present invention:
With reference to Fig. 1, the structure of dismountable throttle orifice mechanism of the present invention is specially: on distributor 4, distributor liquid outlet 7 relative direction is provided with installing hole 8 (quantity of distributor liquid outlet 7 and corresponding installing hole 8 is determined according to the quantity of design throttle orifice component), the direction that described distributor 4 is relative with installing hole 8 is provided with pipe joint 1, described pipe joint 1 internal thread is connected with described throttle orifice component 3, the top end face of described throttle orifice component 3 has throttle orifice 3.1, described throttle orifice 3.1 is communicated with the endoporus 3.2 of throttle orifice component 3, on described distributor 4, installing hole 8 place is provided with tubular flange 5, plug 6 inserts in installing hole 8 through tubular flange 5.The back segment cross section of described endoporus 3.2 is polygon (as pentagon, hexagon).Endoporus 1.1 back segment 1.12 internal diameter of described pipe joint 1 is greater than leading portion 1.11 internal diameter; The external diameter of described throttle orifice component 3 back segment 3.4 is greater than the external diameter of leading portion 3.3, back segment 3.4 outer wall is provided with the external screw thread with the screw-internal thread fit of pipe joint 1, leading portion is set with spring 2, and the end face of described spring 2 compresses with the end face of pipe joint 1 endoporus 1.1 back segment 1.12 and contacts.
With reference to Fig. 2, in throttle orifice mechanism, the structure of the dismounting instrument of throttle orifice component is specially: comprise barred body 9, and the polygon boss 10 (as pentagon, hexagon) mated with endoporus 3.2 back segment of throttle orifice component 3 is equipped with on the top of described barred body 9.Described polygon boss 10 is provided with the throttle orifice limit stick 11 that diameter is less than throttle orifice 3.1 aperture, and the bottom of described barred body 9 is provided with handle 12.
With reference to Fig. 3, disassembly process:
When needing to install throttle orifice component 3 to the distributor liquid outlet 7 of distributor 4, plug 6 is taken out by installing hole 8, then endoporus 3.2 back segment 3.4 correspondence of throttle orifice component 3 is sleeved on the polygon boss 10 on barred body 9 top of described dismantling device, the top correspondence of throttle orifice limit stick 11 realizes the centering of throttle orifice component 3 spacing through throttle orifice 3.1, can prevent throttle orifice component 3 from installation and removal process, falling into distributor 4, so just throttle orifice component 3 is contained on dismantling device in advance, the handle 12 of operator's hand-held barred body 9 bottom, by installing hole 8, throttle orifice component 3 is sent into distributor liquid outlet 7, then side rotary handle 12, handle 12 is made to drive the corresponding rotation of throttle orifice component 3, the inwall of throttle orifice component 3 back segment 3.4 outer wall and pipe joint 1 is made to realize screwed tight, while screwed tight, also make to be sleeved on the spring 2 outside throttle orifice component 3 leading portion 3.3 to be compressed by the end face of the back segment 1.12 of pipe joint 1.1, under two active forces that screwed tight and spring 2 compress, throttle orifice component 3 is firmly arranged in pipe joint 1, and realize being communicated with pipe joint 1 by throttle orifice 3.1, last operation person pulls down fixed handle 12, polygon boss 10 is exited by endoporus 3.2 back segment of throttle orifice component 3, corresponding throttle orifice limit stick 11 also exits by throttle orifice 3.1, until whole dismantling device is gone out to exit by installing hole 8, again in installing hole 8, load onto plug 6 again, distributor 4 is the airtight installation process namely achieving throttle orifice component 3 again.
When blocking appears in the throttle orifice component 3 in distributor 4, need to change throttle orifice component 3, or when needing the throttle orifice 3.1 of throttle orifice component 3 to be carried out to the operations such as reaming: first take off plug 6, the handle 12 of the hand-held dismantling device of operator, the polygon boss 10 of dismantling device is sent into distributor liquid outlet 7 place, and make the top correspondence of throttle orifice limit stick 11 through throttle orifice 3.1, the corresponding plug-in mounting of endoporus 3.2 back segment of polygon boss 10 and throttle orifice component 3; Then handle 12 is reversely rotated, drive throttle orifice component 3 also respective opposed rotation, throttle orifice component 3 back segment 3.4 outer wall is made to remove with pipe joint 1 inwall the state be threaded, spring 2 is also no longer pressed on the end face of back segment 1.12 of pipe joint 1.1, under the effect of spring 2, throttle orifice component 3 is sleeved on the polygon boss 10 of dismantling device according to gravity, now operator pulls down fixed handle 12, dismantling device with throttle orifice component 3 all exits by installing hole 8, namely achieves the unloading process of throttle orifice component 3;
When needs newly install throttle orifice component 3 time, method of operating is the same.By using special dismantling device, making the disassembly process of throttle orifice component 3 very simple, not destroying distributor or associated conduit, quick and convenient.For the blocking of certain device gasification furnace water-steam system pipe throttle orifice plate described in background technology cleaning, according to structure of the present invention, distributor is transformed, coordinate special dismantling device, whole dismounting and cleaning process only needs a few minutes, the driving not affecting device completely runs, the effective guarantee also obtained in service life of equipment.
Claims (7)
1. a dismountable throttle orifice mechanism, comprise the distributor and throttle orifice component that are provided with distributor liquid outlet, it is characterized in that, described distributor liquid outlet relative direction offers installing hole, described distributor liquid outlet is equipped with pipe joint, and described joint internal thread is connected with described throttle orifice component, and the top end face of described throttle orifice component has throttle orifice, described throttle orifice is communicated with the endoporus of throttle orifice component, and described installing hole inner sleeve has plug.
2. dismountable throttle orifice mechanism as claimed in claim 1, it is characterized in that, the back segment cross section of described endoporus is polygon.
3. dismountable throttle orifice mechanism as claimed in claim 1 or 2, it is characterized in that, the endoporus back segment internal diameter of described pipe joint is greater than leading portion internal diameter; The external diameter of described throttle orifice component back segment is greater than the external diameter of leading portion, and back segment outer wall is provided with the external screw thread with the screw-internal thread fit of pipe joint, and leading portion is set with spring, and the end face of described spring compresses with the top end face of pipe joint endoporus back segment and contacts.
4. dismountable throttle orifice mechanism as claimed in claim 3, is characterized in that, described distributor is also equipped with the tubular flange corresponding with installing hole.
5. the dismounting instrument of throttle orifice component in dismountable throttle orifice mechanism described in any one of claim 1-4, comprise barred body, it is characterized in that, the top of described barred body is provided with the polygon boss mated with the endoporus back segment of throttle orifice component.
6. dismounting instrument as claimed in claim 5, it is characterized in that, described polygon boss is provided with the throttle orifice limit stick that diameter is less than throttle orifice.
7. the dismounting instrument as described in claim 5 or 6, is characterized in that, it is characterized in that, the bottom of described barred body is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631366.4A CN103672849B (en) | 2013-11-29 | 2013-11-29 | Dismountable throttle orifice mechanism and mounting and dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631366.4A CN103672849B (en) | 2013-11-29 | 2013-11-29 | Dismountable throttle orifice mechanism and mounting and dismounting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103672849A CN103672849A (en) | 2014-03-26 |
| CN103672849B true CN103672849B (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310631366.4A Active CN103672849B (en) | 2013-11-29 | 2013-11-29 | Dismountable throttle orifice mechanism and mounting and dismounting tool |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301712A (en) * | 1993-07-12 | 1994-04-12 | Tapco International, Inc. | Slide valve |
| CN102392925B (en) * | 2011-03-30 | 2013-08-21 | 上海锅炉厂有限公司 | Throttling device |
| CN202834560U (en) * | 2012-06-28 | 2013-03-27 | 中广核工程有限公司 | Essential service water system throttling pore plate used for nuclear plant |
| CN203671575U (en) * | 2013-11-29 | 2014-06-25 | 中国五环工程有限公司 | Detachable throttle orifice plate mechanism and dismounting tool |
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| CN103672849A (en) | 2014-03-26 |
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