CN201680355U - Manhole device for boiler pressure container - Google Patents
Manhole device for boiler pressure container Download PDFInfo
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- CN201680355U CN201680355U CN2009201679743U CN200920167974U CN201680355U CN 201680355 U CN201680355 U CN 201680355U CN 2009201679743 U CN2009201679743 U CN 2009201679743U CN 200920167974 U CN200920167974 U CN 200920167974U CN 201680355 U CN201680355 U CN 201680355U
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- pressure vessel
- boiler
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Abstract
The utility model provides a manhole device for a boiler pressure container, which improves a cover body, is additionally provided with joints for connecting pipelines, valves and accessories, so the manhole device is enriched with more functions, in prior art, the maintenance personnel needs to enter the shutdown equipment for mounting, repairing and cleaning, the manhole device can finish the in-and-out discharging and monitoring of the working medium while the equipment operates. The number of openings on the boiler pressure container is reduced to facilitate the design, machining and manufacturing of the equipment, meanwhile the manhole part can realize the integration and standardized technical advance. Besides, the manhole device for the boiler pressure container also has convenient use and operation.
Description
Technical field the utility model relates to boilers and pressure vessel manhole device's improvement and function expansion, mainly to its lid and be attached thereto on the relay part, some interfaces and base have been installed in design additional, installation for relevant pipeline, valve, annex, reaching working medium can be from the purpose of the turnover of manhole position, connection, observation, measurement, and this design, manufacturing, installation and use operation that improves for the boilers and pressure vessel body all can produce some good effects.
All design the bigger manhole parts of diameter on the existing boilers and pressure vessel of background technology, purpose is the turnover operation for staff when producing and overhaul.Manhole cover then is the sealing blind plate element that matches with it, and plate shaped, waveform flute profile and convex hull shape are arranged, enclosed and two kinds of closing forms of outer enclosed in dividing.Because people's bore dia is bigger than other mouth of pipe, so generally wanting reinforcement handles, increased labor and materials, the existence of these parts has hindered device external globality packing and insulation, also more or less influenced the arranged of the device of device interior, in case and equipment brings into operation, then manhole is in closed state, has not had it and has used, the formation action function is single, and service efficiency is not high.
For the ease of carrying out the installation and removal of annex in internal cleaning and periodic inspection and the equipment, general boilers and pressure vessel all offers circle or oval manhole device.The sealing pattern of manhole has two kinds of interior enclosed and outer encloseds.The port lid of interior enclosed manhole is placed on the manhole inboard, tightly placing and be supported on the cross bar on limit, hole, sees accompanying drawing 1 with two bolts outside the hole, and the existing modified that many bolted are also arranged is seen accompanying drawing 5 classes.Though the installation of interior enclosed manhole cover is difficulty comparatively, his sealing property is better, and the pressure of working medium can help to compress port lid in the equipment, and the effect of self-tightening sealing is arranged, and can prevent that inefficacy because of pad etc. from causing vomiting of medium in the device.The structure of outer enclosed manhole cover generally is exactly a flanged (FLGD) short sections and plate lid or convex hull shape bubble cap, and is fastening with bolt or stud, sees accompanying drawing 2, accompanying drawing 3.Open the more outer enclosed manhole of number of times, often adopt hinged rotary cap, see accompanying drawing 4.It uses the flange of hinged bolt and band breach screw, port lid is hinged with pin and short tube, can overturn whole port lid get off around pin after unscrewing nut upset bolt, it is all comparatively convenient to load and unload, and is more suitable for being contained in manhole device's structure (see " safe technology of pressure vessel " Chemical Industry Press July nineteen eighty-two the 38th page 39 pages) of eminence.The 39th regulation of " hot-water boiler safety and technical supervision rules " (revised edition in 1997): the needs that the quantity of the manhole of offering on the boiler, a hole, hand hole, clean-out opening, inspection opening and position should be satisfied installation, maintenance and be cleaned.The manhole cover of boiler pressure parts, a port lid should adopt interior closed type structure, and hand hole cover should adopt interior enclosed, and the structure of lid should guarantee that liner can not be blown." steam boiler safety and technical supervision rules " (1996) the 60th regulations: the needs of installation, maintenance, operation monitoring and cleaning should be satisfied in the quantity of the manhole of offering on the boiler, a hole, hand hole, clean-out opening, inspection opening, peep hole and position.The manhole cover of boiler pressure parts, a port lid, hand hole cover should adopt interior closed type structure.Nominal steam pressure is less than or equal to the boiler of 1.6MPa, and the manhole cover of its pressure parts, a port lid, hand hole cover can adopt flange connection; Nominal steam pressure is greater than the boiler of 3.8MPa, and the hand hole of its pressure parts can adopt welded structure.More than two rules all require the perforate position on end socket, tube sheet or cylindrical shell, at least 1 of perforate quantity, perforate specification are that ellipse should or not be less than 380mm less than 280mm * 380mm, round diameter.In shell boiler pressure parts intensitometer basis of calculation GB/T16508-1996, stipulate that the perforate aperture can not be greater than 600mm.Should point out that here steam boiler is all higher than the parameter of hot-water boiler design and running, especially rated pressure and temperature, so the flange connection and the circular manhole of steam boiler use, the hot-water boiler low to the working medium operational factor adopts also with regard to no problem.
Goal of the invention is in order to improve the utilization rate of this device feature of manhole, the perforate of minimizing on the boilers and pressure vessel body, the globality of raising equipment, make the manufacturing installation be able to integrated, operation maintenance centralization can also reduce the dead angle that boilers and pressure vessel our department working medium flows simultaneously, helps getting rid of gas collection, make these parts of manhole when equipment moves, also can give play to more multiaction, improve its utilization rate.
Summary of the invention
Boilers and pressure vessel provided by the invention is used the manhole device, said manhole device is opened on the boilers and pressure vessel body, it is characterized in that: installed additional on said manhole device's the manhole cover and can or overhaul the interface of the base valve seat frame mouth seat form that detects for working medium turnover, connection.
Optimized technical scheme:
Boilers and pressure vessel provided by the invention is used the manhole device, described boilers and pressure vessel is used the manhole device, it is characterized in that with said manhole cover being the assembly of one section shell ring body and one flat plate female cap body, said shell ring body two ends are installed between plate shaped manhole cover and the manhole circle with the flange type of attachment, and said cylindrical shell is provided with interface and base.
Boilers and pressure vessel provided by the invention is used the manhole device with the described boilers and pressure vessel of manhole device, it is characterized in that it in the Industrial Boiler is the fixed steam boiler of medium with water that said boiler is meant, hot-water boiler, dual purpose steam water boiler, small-sized and normal-pressure hot-water boiler and medium are the boiler of organic heat carrier.
Boilers and pressure vessel provided by the invention is used the manhole device with the described boilers and pressure vessel of manhole device, it is characterized in that said pressure vessel be meant in the class pressure vessel include non-inflammable and explosive, the low pressure vessel of nontoxic medium.
Boilers and pressure vessel provided by the invention is used the manhole device with the described boilers and pressure vessel of manhole device, it is characterized in that perforate and the pipeline valve of institute's adapted or the connected mode of annex on the said manhole cover of the present utility model, adopt the flange form syndeton, or screw connection structure.
Boilers and pressure vessel provided by the invention is used the manhole device with the described boilers and pressure vessel of manhole device, it is characterized in that said manhole cover is to be covered by the metal manufacturing to coat the non-metallic inner liner layer and make again.
Boilers and pressure vessel provided by the invention is used the manhole device with the described boilers and pressure vessel of manhole device, it is characterized in that said manhole cover is equipped with annex, and said annex comprises water-supply valve, back-water valve (BWV), outlet valve, stop valve, auxiliary steam valve, exhaust steam valve, air bleeding valve, vapour connecting leg, continuous blow off equipment, gas collecting apparatus, safety valve, Pressure gauge, thermometer, peep hole, clean-out opening, inspection opening, sensor, pipeline, pipeline section, base, pipe fitting.
This utility model can produce following several respects advantage on effect:
1, design aspect
1. lack perforate owing on the boilers and pressure vessel body, adding, improved the globality of himself, helped increasing the safety allowance of equipment intensity aspect.
2. say for boiler because cylindrical shell is heated directly than manhole, the operating temperature height, thus material select for use index than manhole cover height, minimizing just equals to have reduced the waste to quality material to the perforate of cylindrical shell.
3. because perforate such as manhole head hole hand hole generally all need be carried out various forms of reinforcement and handle, therefore can utilize the single hole self or the mutual unnecessary reinforcement area of porous of manhole cover opening, reduce its design thickness during perforate not.(see that " teaching materials of boilers and pressure vessel ABC " boilers and pressure vessel inspection center of Ministry of Labor and Personnel publishes the 194th page July nineteen eighty-three according to interrelated data.) introduction, under the hinged situation of round edge, the maximum radial stress and the maximum of hoop stress of open circles flat board all occur in the plectane center.According to this mechanism, can carry out perforate and reinforcement in the center of circular or oval manhole lid, just in time removed its stressed vulnerable area.After the perforate, cover plate for manhole the knot hook and stressed on more rationally more optimized.
4. because manhole and manhole cover mostly are universal component, and the structural shape placement position is basic identical, but the pressure-bearing index is different with working media, so use material and choose thickness different, the existing series of general boilers and pressure vessel is finalized the design.So this utility model also can realize standardization, conveniently to manufacture and design and to use.
2, manufacturing aspect
1. from ordinary circumstance, the employed material of manhole cover, than alloying element kind in the used material of boilers and pressure vessel body and percentage by weight is low, therefore has the good advantage of relative solderability, and this has brought advantage for the establishment and the site operation environment of manufacturing process.
2. during welding procedure, on the manhole cover smallclothes with on big of boilers and pressure vessel body, compare, convenient flexible in the operation, can avoid the overhead welding mode, also realize welding by both sides easily, help the through welding of weld seam, ensure the quality of products, also help the labor protection smoke evacuation, improve execution conditions and reduce ascend operation, accomplish comparison safety.This also is like this for other operation such as line, perforate, finished edge, nondestructive inspection, appearance test etc.In a word, can realize processing integrated mass, improve work efficiency.
3. owing to reduced the perforate layout on the boilers and pressure vessel body, make and pack and the more convenient and better effects if of heat insulation work accordingly that dodge some parts and the processing at dead angle separately because reduced.
3, installation and use aspect
This utility model make boilers and pressure vessel relevant installation and maintenance, use work such as operation, tours of inspection, look-out, Chemical cleaning can both concentrate on the manhole position to carry out, reach equipment appurtenance position compactness, in the operation set, handle effect easily.Because installation and operating position are very concentrated, when design operation platform and staircase guardrail, also can carry out simpler more rational design and make installation its area, shape, position etc.
For the manhole that adopts flange join type, because manhole cover protrudes from a part on the boilers and pressure vessel body, therefore, the dead angle that this utility model can also the interior working medium of abatement apparatus be accumulated particularly helps the discharge of gas collection.Sometimes interior enclosed manhole also has this problem.
Feature of the present utility model is on the blind plate of existing manhole cover (shell), when boiler of feeding or pressure vessel operation have been installed in design additional, the birdsmouth parts that working medium can flow to, flows out or be communicated with, observe, as base, pipe collar, valve seat, frame mouth base etc., the pipeline valve that matches in order to installation or annex etc.
This utility model can make more original be arranged in that confession working medium on the boilers and pressure vessel body passes in and out or together with interface unit, change into and on manhole cover, arrange installation, changed the single closing function of common manhole cover, also improve its utilization rate aspect structure, material, made these parts of manhole give new more multiaction again.With compared in the past, the employing of this utility model does not change the nameplate technical indicator and the performance of former boilers and pressure vessel.
Because what this utility model was related is parts on the boilers and pressure vessel body, so should use existing national technical standard standard for his manufacturing and designing, " calculating of shell boiler pressure parts intensity " GB/T16508 etc. for example, the concrete application also wants the actual features of bonding apparatus operation process to carry out.
This utility model has following characteristic to note:
1, for the use of this utility model on the manhole device, the manhole that is used for outer enclosed than the manhole of interior enclosed easily and effect good.Because the one, the former used fastening bolt is more than the latter's quantity, but specification is little, laborsaving safety during loading and unloading, not fragile instrument.The 2nd, the former is distributed in the manhole cover periphery by used fastening bolt, the effective area that is used to lay various interface is bigger, and that latter's bolt is positioned at the welding of manhole cover middle part is fixing, adds the cross bar saddle iron of institute's adapted, make that the effective area be used to lay interface is little, so that can't use the utility model.But because internally the enclosed manhole can be done some technological improvements, make fastening bolt be distributed in manhole circle periphery, see number of patent application 200920164233.X, therefore adopt this utility model that possibility has also just been arranged.
In like manner, this utility model with the circular manhole of the blue connected mode of closed circuit method outside than being used on the ellipse manhole to good, reason also is to access the more efficient area that utilizes, is beneficial to and arranges various interface and base, and more convenient staff's access manhole.In addition, circular manhole cover is also simpler easier than oval manhole cover in processing and manufacturing.
Comprehensively, the best use occasion of this utility model is on the circular manhole of outer enclosed flange join type.
2, because national standard has been stipulated bound for the bore size of boilers and pressure vessel, too little can not advance the people, too big and influence intensity, so the reinforcement of perforate processing is only applicable to d/D
n＜0.8 and the manhole of d＜600mm, wherein d is out the major axis dimension of the diameter or the elliptical aperture of circular hole, D
nFor by the cylinder internal diameter of perforate.So the use of this utility model should decide according to manhole size size and working medium working condition, to accomplish both up to specificationly, easy to use again, this all is essential attention for design, manufacturing, transformation and applying unit.
From the design and the angle of manufacturing firm, this utility model answers the different model of bonded boiler pressure vessel to be optimized design, and arrangement as much as possible is provided with some interfaces and base, selects for use for the actual of all types of user.From user perspective, should be according to the specific requirement of equipment, docking port and base carry out selectivity and install and use flexibly.
3, this utility model can all have good applicability to some commonly used pipe fitting valve and annexes, for example goes up some water-supply valves that are provided with, back-water valve (BWV), outlet valve on the boilers and pressure vessel, stop valve, auxiliary steam valve, exhaust steam valve, air bleeding valve, safety valve, Pressure gauge, thermometer, inspection opening, clean-out opening, vapour connecting leg, gas collecting apparatus, continuous blow off equipment, and various pipelines, pipeline section, base, pipe fitting etc., even the base of sensor or observation panel or the like.Join what parts and depend on the working medium and the flow process of boilers and pressure vessel, as steam, hot water or organic heat carrier, gas, liquid etc., adopting form and result in a word is disaggregatedly.
4, in addition, this utility model also will be noted the collocation of various valve pipe annexes in practical application, should install use concentratedly, does not hinder mutually again.And also will note cooperating and docking for the various devices of device interior, assurance equipment normally moves; To note fixing and propping up and hang for the pipeline of device external, too much load-bearing be arranged to prevent manhole cover.Therefore when adopting this utility model, must make the complete system scheme that rationally is suitable for to its relevant installation, dismounting, normal running and interim treatment measures etc., with reach management and use without any confusion, safe and efficient.
Description of drawings:
Now each accompanying drawing is described and marks in conjunction with specification:
The blacking of mark partly is not weld seam in each accompanying drawing, and explanation hereby indicates no longer respectively.
Accompanying drawing 1 is interior enclosed manhole sealing scheme of installation, main looking.Wherein:
The 1-nut, 2-fastening bolt, 3-packing ring, 4-cross beam type stock saddle iron (manhole horse), 5-manhole circle, 6-sealing gasket, the plate shaped manhole lid of 7-.
Accompanying drawing 2 is outer enclosed manhole sealing scheme of installation, main looking.Wherein:
The 1-nut, 2-fastening bolt, 3-packing ring, the plate shaped manhole lid of 4-, 5-sealing gasket, the manhole circle of the blue dish of 6-band.
9--convex hull shape manhole lid, 6-sealing gasket, the manhole circle of the blue dish of 8-band.
Accompanying drawing 4 is outer enclosed manhole circle and plate shaped manhole cover hinge connection diagram, main looking.Wherein:
The 1-nut, the 2-fastening bolt, the 3-packing ring, the plate shaped manhole lid of 7-, 10-manhole cover handle, the 11-sealing gasket,
-manhole cover hinge, the blue dish of 8-manhole cover.
Fig. 5 is interior enclosed manhole cover plurality of bolts hanger type of attachment scheme of installation, main looking.Wherein:
The 1-nut, 13-one end is made for
The fastening bolt of shape hanger, the 3-packing ring, the oval cast planar disc of 14-frame iron, 5-manhole circle, the 6-sealing gasket, the plate shaped manhole lid of 7-, 15-are welded on the ∩ shape hanger on the manhole lid.
Fig. 6 is connected and installed schematic diagram for interior enclosed manhole cover plurality of bolts hanger, overlooks.
Fig. 7 is plate shaped manhole cover perforate of interior enclosed and scheme of installation, main looking.Wherein:
The 1-nut, the 16-end is made
The fastening bolt of shape hanger, the 3-packing ring, 17-hanger formula hangs tag, the main connector of offering on the 18-manhole cover, the secondary connector of offering on the 19-manhole cover, 5-manhole circle, 6-sealing gasket, 15-is welded on the ∩ shape hanger of the homonymy stud openings on the manhole cover, the additional water conservancy diversion sleeve pipe of 21-connection device interior arrangement.
Fig. 8 is plate shaped manhole cover perforate of interior enclosed and scheme of installation, overlooks.
Fig. 9 is plate shaped manhole cover perforate of outer enclosed and scheme of installation, main looking.Wherein:
The 1-nut, the 2-fastening bolt, the 3-packing ring, the plate shaped manhole lid of 7-, the secondary connector that the 19-manhole cover is offered, 4 openings can be uniform, the main connector that the 18--manhole cover is offered, 6-sealing gasket, 5-manhole circle.
Figure 10 is plate shaped manhole cover perforate of outer enclosed and scheme of installation, overlooks.Wherein:
24-internal thread pipe collar joint type opening.
The perforate shell ring schematic diagram of Figure 11 for installing additional between plate shaped manhole cover of outer enclosed and the manhole circle, main looking.
The shell ring perforate schematic diagram of Figure 12 for installing additional between plate shaped manhole cover of outer enclosed and the manhole circle overlooked stagewise cutaway view.Wherein: 22-installs the blue disc type opening of short tube on the shell ring body additional, and the shell ring body that 23-installs additional, 24-install the internal thread pipe collar formula opening on the shell ring body additional.
The specific embodiment:
1, the technical scheme that the utility model is general can be as described below, for example for interior enclosed manhole cover, effectively utilizes area little owing to what lid exposed, can only install the interface that working medium is advanced or gone out, and quantity is unsuitable many, and bore is unsuitable big.For example, thinner for the steam boiler steam outlet pipe, being suitable for the boiler tonnage can be more greatly, and thicker for the hot-water boiler outlet pipe, being suitable for the boiler tonnage can be littler.Discharge coupling can mounted valve, also pipeline section can be installed, and also can be parts such as air collector, installs various valves on the air collector again.As possible, also can increase the interface of installing safety valve or Pressure gauge or thermometer on the little tonnage boiler.See the main connector of piece number 5 for offering on the manhole cover among accompanying drawing 7 and accompanying drawing 8 figure, can be used as working medium advances or exports, the secondary connector of piece number 6 for offering on the manhole cover, safety attachment etc. can be installed, piece number 10 is the further sleeve of connection device interior arrangement, and this sleeve pipe should determine whether to install additional or how to fix (scheme 2 schemes 3 also are like this) as the case may be.Pressure vessel also is like this.This kind scheme has certain limitation.
2, the utility model preferably technical scheme can be as described below, for example for outer enclosed manhole cover, owing to be blue dish type of attachment, what lid exposed effectively utilizes area bigger, can compare with general approach aspect design and installation, can arrange more more interfaces or parts, see the secondary connector that piece number 5 is offered for manhole cover among accompanying drawing 9 and accompanying drawing 10 figure, can 4 main connectors uniform, that piece number 6 is offered for manhole cover, piece number 9 is an internal thread pipe collar joint.More than the use of these interfaces also be by the concrete operating mode decision of equipment, as can satisfy the installation of parts such as outlet valve, air bleeding valve, safety valve, Pressure gauge, thermometer substantially for hot-water boiler.This scheme has better practicability.
3, the better technical scheme of the utility model can be as described below, in order to make full use of the collection dress advantage at manhole position, satisfies the actual needs of boiler or pressure vessel as far as possible, can to manhole particularly manhole cover redesign and transform.For example, convex hull shape manhole cover can be removed shell top part, manufacture and design become one the joint cylinder-shaped, or be oval, or be circular, or be one section cylindrical shell of the oval end circle of an end, design to open again on this section cylindrical shell and leave some connectors, its two ends are connected with the cover plate for manhole of leaving relevant interface or parts with the manhole circle with orchid dish type of attachment again, so, opening on the cylindrical shell is added the opening of cover plate for manhole, and quantity can increase at double, has satisfied the production technology and the security needs of boilers and pressure vessel substantially.Certainly, this just needs to transform for interior enclosed manhole circle, adds blue dish, and has become outer enclosed manhole, and this is the another one topic, no longer discusses.This scheme sees that piece number 1 is for installing the blue disc type opening of short tube on the shell ring body additional among accompanying drawing 11 and accompanying drawing 12 figure, the shell ring body of piece number 2 for installing additional between manhole cover and the manhole circle, piece number 3 is for installing the internal thread pipe collar formula opening on the shell ring body additional, and this scheme has better effect and more general applicability.
More than three kinds of schemes the 3rd kind of scheme especially, be applicable to be the fixed steam boiler of medium with water in the Industrial Boiler, hot-water boiler, dual purpose steam water boiler, small-sized and normal-pressure hot-water boiler, with medium be in the boiler of organic heat carrier and the class pressure vessel include non-inflammable and explosive, on the low pressure vessel of nontoxic medium.
In addition, the related manhole device of this utility model comprises that manhole cover is generally metal and makes, if any nonmetal then for covering the inner liner that shields that is coated on the metal.
Claims (7)
1. boilers and pressure vessel is used the manhole device, said manhole device is opened on the boilers and pressure vessel body, it is characterized in that: installed additional on said manhole device's the manhole cover and can or overhaul the interface of the base valve seat frame mouth seat form that detects for working medium turnover, connection.
2. use the manhole device according to the described boilers and pressure vessel of claim 1, it is characterized in that with said manhole cover being the assembly of one section shell ring body and one flat plate female cap body, said shell ring body two ends are installed between plate shaped manhole cover and the manhole circle with the flange type of attachment, and said cylindrical shell is provided with interface and base.
3. use the manhole device according to claim 1 or 2 described boilers and pressure vessels, it is characterized in that it in the Industrial Boiler is the fixed steam boiler of medium with water that said boiler is meant, hot-water boiler, dual purpose steam water boiler, small-sized and normal-pressure hot-water boiler and medium are the boiler of organic heat carrier.
4. use the manhole device according to claim 1 or 2 described boilers and pressure vessels, it is characterized in that said pressure vessel be meant in the class pressure vessel include non-inflammable and explosive, the low pressure vessel of nontoxic medium.
5. use the manhole device according to claim 1 or 2 described boilers and pressure vessels, it is characterized in that perforate and the pipeline valve of institute's adapted or the connected mode of annex on the said manhole cover of the present utility model, adopt the flange form syndeton, or screw connection structure.
6. use the manhole device according to claim 1 or 2 described boilers and pressure vessels, it is characterized in that said manhole cover is to be covered by the metal manufacturing to coat the non-metallic inner liner layer and make again.
7. use the manhole device according to claim 1 or 2 described boilers and pressure vessels, it is characterized in that said manhole cover is equipped with annex, said annex comprises water-supply valve, back-water valve (BWV), outlet valve, stop valve, auxiliary steam valve, exhaust steam valve, air bleeding valve, vapour connecting leg, continuous blow off equipment, gas collecting apparatus, safety valve, Pressure gauge, thermometer, peep hole, clean-out opening, inspection opening, sensor, pipeline, pipeline section, base, pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201679743U CN201680355U (en) | 2009-08-05 | 2009-08-05 | Manhole device for boiler pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201679743U CN201680355U (en) | 2009-08-05 | 2009-08-05 | Manhole device for boiler pressure container |
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| CN201680355U true CN201680355U (en) | 2010-12-22 |
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| CN2009201679743U Expired - Fee Related CN201680355U (en) | 2009-08-05 | 2009-08-05 | Manhole device for boiler pressure container |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644425A (en) * | 2013-11-27 | 2014-03-19 | 中国瑞林工程技术有限公司 | Manhole cover plate with rectification cover and vent valve of combined water supply pipeline |
| CN104214762A (en) * | 2014-08-28 | 2014-12-17 | 洛阳瑞泽石化工程有限公司 | Piston regulation valve port doubled as manhole structure of converted gas steam generator |
| CN105422848A (en) * | 2015-12-22 | 2016-03-23 | 德阳九鼎智远知识产权运营有限公司 | Titanium alloy sealing head |
| CN106369161A (en) * | 2016-11-30 | 2017-02-01 | 江苏省化工设备制造安装有限公司 | Large-diameter high pressure vessel adopting barrel end and main bolt connecting structure |
| CN108257685A (en) * | 2017-12-28 | 2018-07-06 | 中广核研究院有限公司 | Reactor pressure vessel and its head cover and head cover end socket |
| CN108453403A (en) * | 2017-02-20 | 2018-08-28 | 中国石油天然气股份有限公司 | The welding method of Pressure container manhole flange anticorrosion sieve plate |
| CN109812689A (en) * | 2019-03-04 | 2019-05-28 | 荆门宏图特种飞行器制造有限公司 | Transportable pressure vessel |
| CN109939629A (en) * | 2019-04-25 | 2019-06-28 | 茂名重力石化装备股份公司 | A kind of reactor with opening-nozzle structure |
| CN112963533A (en) * | 2021-01-22 | 2021-06-15 | 哈电集团（秦皇岛）重型装备有限公司 | Sealing surface protection tool pressing device and pressing method |
| CN109939629B (en) * | 2019-04-25 | 2024-07-02 | 茂名重力石化装备股份公司 | Reactor with perforated pipe connecting structure |
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2009
- 2009-08-05 CN CN2009201679743U patent/CN201680355U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644425A (en) * | 2013-11-27 | 2014-03-19 | 中国瑞林工程技术有限公司 | Manhole cover plate with rectification cover and vent valve of combined water supply pipeline |
| CN104214762A (en) * | 2014-08-28 | 2014-12-17 | 洛阳瑞泽石化工程有限公司 | Piston regulation valve port doubled as manhole structure of converted gas steam generator |
| CN104214762B (en) * | 2014-08-28 | 2016-05-25 | 洛阳瑞泽石化工程有限公司 | The piston governor valve mouth of reformed gas steam generator is double is manhole structure |
| CN105422848A (en) * | 2015-12-22 | 2016-03-23 | 德阳九鼎智远知识产权运营有限公司 | Titanium alloy sealing head |
| CN106369161A (en) * | 2016-11-30 | 2017-02-01 | 江苏省化工设备制造安装有限公司 | Large-diameter high pressure vessel adopting barrel end and main bolt connecting structure |
| CN108453403A (en) * | 2017-02-20 | 2018-08-28 | 中国石油天然气股份有限公司 | The welding method of Pressure container manhole flange anticorrosion sieve plate |
| CN108453403B (en) * | 2017-02-20 | 2020-08-07 | 中国石油天然气股份有限公司 | Welding method of anti-corrosion sieve plate of manhole flange of pressure container |
| CN108257685A (en) * | 2017-12-28 | 2018-07-06 | 中广核研究院有限公司 | Reactor pressure vessel and its head cover and head cover end socket |
| CN109812689A (en) * | 2019-03-04 | 2019-05-28 | 荆门宏图特种飞行器制造有限公司 | Transportable pressure vessel |
| CN109939629A (en) * | 2019-04-25 | 2019-06-28 | 茂名重力石化装备股份公司 | A kind of reactor with opening-nozzle structure |
| CN109939629B (en) * | 2019-04-25 | 2024-07-02 | 茂名重力石化装备股份公司 | Reactor with perforated pipe connecting structure |
| CN112963533A (en) * | 2021-01-22 | 2021-06-15 | 哈电集团（秦皇岛）重型装备有限公司 | Sealing surface protection tool pressing device and pressing method |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20101222 Termination date: 20130805 |