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CN202914978U - Waterproof heat preserving sleeve - Google Patents

Waterproof heat preserving sleeve Download PDF

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Publication number
CN202914978U
CN202914978U CN 201220593703 CN201220593703U CN202914978U CN 202914978 U CN202914978 U CN 202914978U CN 201220593703 CN201220593703 CN 201220593703 CN 201220593703 U CN201220593703 U CN 201220593703U CN 202914978 U CN202914978 U CN 202914978U
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CN
China
Prior art keywords
heat preserving
upper shell
shell body
lower shell
heat
Prior art date
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Expired - Fee Related
Application number
CN 201220593703
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Chinese (zh)
Inventor
迟云峰
粱有祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Conservation Science & Technology Co Ltd
Original Assignee
Dalian Conservation Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN 201220593703 priority Critical patent/CN202914978U/en
Application granted granted Critical
Publication of CN202914978U publication Critical patent/CN202914978U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a waterproof heat preserving sleeve and relates to a pipeline device, such as a valve, a flange and other fittings and a sleeve heat preserving assembly with a cold and hot loss preventing seal plug. The waterproof heat preserving sleeve is characterized in that a protective casing of the heat preserving sleeve comprises an upper casing and a lower casing. The upper casing and the lower casing are combined in a Haff fastening face mode and are fastened through a fastener. The protective casing sequentially comprises a protective outer casing, an internal heat preserving layer and a heat preserving layer fixing steel wire mesh from outside to inside. The waterproof heat preserving sleeve has the advantages of being novel in structure, simple and convenient to process, convenient to use, good in heat preserving and waterproof performance, safe, reliable, attractive, elegant and the like and is a novel waterproof heat preserving sleeve integrating economy and practical applicability.

Description

Waterproof thermal-insulated cover
Technical field
Waterproof thermal-insulated cover described in the utility model relates to a kind of line equipment, and pipe fittings such as valve, flange and end socket are anti-cold, the overcoat heat-insulating member of thermal loss.
Background technique
All to use high temperature, cryogenic pipelines in industries such as oil, chemical industry, electric power, light industrys at present, such as line equipment such as valve, filter, flange, end sockets.Ultralight foam asbestus parcel is adopted in the insulation of existing line equipment mostly, rear mode with the iron wire binding, or in layer smear on the outer surface with sepiolite insulation ash, simply be not incubated processing for little line equipment.Lose in a large number for the heat of uninsulated valve own, for example diameter is the stop valve of 100mm, being equivalent to the duct length that the 1.2m diameter is 100mm, is that ambient temperature is 20 ℃ on 198 ℃ the pipeline in medium temperature, diameter is that the pipeline heat loss through radiation amount of 100mm is 1374w/m, the radiation loss of stop valve is 1.7KW, and year 8600 hours * 1.7KW=14620 of loss amount degree electricity is amounted to 11696 yuan of RMB, by 20 years, close RMB more than 23.4 ten thousand.
Heat-preservation cotton and its water proofing property of thermal insulation layer of smearing are bad, and its moisture absorption is extremely strong, and water enters into heat-preservation cotton or smear layer, accelerate the corrosion of valve.In addition, the existence of liquid on valve can be taken away heat during evaporating liquid, and heat insulation effect descends.
Heat-preservation cotton and the thermal insulation layer installation procedure of smearing are complicated especially, and its surface strength is low, is easy to cause damaged in collision, and insulation effect lost efficacy.
On-the-spot disunity, not attractive in appearance, the cleaning difficulty, change valve after heat-preservation cotton waste in a large number, the thermal insulation layer of smearing is met water and is come off, thermal insulating material such as can not reuse at the problems.
For existing problem in the above-mentioned prior art, a kind of novel waterproof thermal-insulated cover of research and design, existing problem is very necessary in the prior art thereby overcome.
Summary of the invention
In view of existing problem in the above-mentioned prior art, the purpose of this utility model is a kind of novel waterproof thermal-insulated cover of research and design.Exist in the prior art in order to solve:
1, because heat-preservation cotton has stronger moisture absorption, and water enters into heat-preservation cotton or smear layer, accelerates the corrosion of valve;
2, because heat-preservation cotton has stronger moisture absorption, and the existence of liquid on valve can be taken away heat during evaporating liquid, heat insulation effect descends;
3, heat-preservation cotton and the thermal insulation layer installation procedure smeared are complicated, time-consuming especially;
4, because heat-preservation cotton and the insulation layer surface intensity of smearing are low, be easy to cause damaged in collision, insulation effect lost efficacy.
Technical solution of the present utility model is achieved in that
Waterproof thermal-insulated cover described in the utility model is comprised of protection housing and heat-insulating member; It is characterized in that described protection housing comprises upper shell and lower shell body; Upper shell adopts the mode of Hough buckling surface to combine with lower shell body, sealability and bearing capacity have radially been increased by the fastening such structure of fastening piece, upper shell and lower shell body are fastening by fastening piece, can use suitable Placement according to respective environment like this; Described heat-insulating member is fixed on upper shell and lower shell body internal surface.Heat-insulating member comprises fixedly steel wire of base insulating layer and thermal insulation layer; Lagging is followed successively by fixedly steel wire of protecting sheathing, base insulating layer and thermal insulation layer from outside to inside.The protection housing is followed successively by fixedly steel wire of protecting sheathing, base insulating layer and thermal insulation layer from outside to inside, prevents that thermal insulation layer from coming off, and improved working life.
Be processed with valve rod hole on the protection housing described in the utility model, in the outside of valve rod hole rain cover be housed; Be placed with anti-cement between the valve lever in rain cover and valve rod hole, further increased water-proof function.
Upper shell, the lower shell body of protection housing described in the utility model are made with glass fibre reinforced plastics; The outer surface of upper shell, lower shell body is processed with the flame retardant epoxy glass fibre reinforced plastic coating; Make the utility model outer surface have certain flame-retarding characteristic.
Base insulating layer described in the utility model adopts alumina-silicate ceramic fibre Nomex or a complex magnesium aluminum silicate watt shell to make; The safe handling temperature is improved greatly, can reach 1000 degree, high insulating effect.
Between the surface of contact of upper shell described in the utility model and lower shell body Stamping Steel Ribbon is housed, enhanced leaktightness.
The internal surface size of base insulating layer described in the utility model leaves surplus and the airtight air heat-insulation layer of hardware expanded by heating greater than the outer surface size of pipe fitting; Because the principle of heat transfer rate variance further plays the effect of insulation between the different material.
The utility model has the advantages that apparently, be mainly manifested in:
1, good heat insulating: when novel heat insulation is enclosed within and makes, leave the scarcely confined space of moving air, because the heat-shielding performance of moving air not, thereby reduced thermal loss.With background technique give an actual example into example, the heat insulating coefficient of this lagging is 0.05~0.07, calculate by 0.07, radiation loss behind the installation lagging is 0.119KW, and year 8600 hours * 0.119KW=1023 of loss amount degree electricity is amounted to 818 yuan of RMB, by the mean lifetime of this lagging 20 years, amount to 1.6360 ten thousand yuan, be not incubated and consume 23.4 ten thousand yuan, save more than 210,000 after the insulation.
2, water proofing property, anti-sealing enters into heat-preservation cotton or smear layer, prevents the corrosion of valve; Prevent on the liquid flow valve high insulating effect; Good impact resistance, impact strength>18Kg/m 2, tensile strength>205.8MPa, resistance to flexure>180MPa, heat distortion temperature>237 ℃, hardness Barcol>45, the anti-intensity of trampling of the integral body of line equipment lagging is high, inspection man people overhauls construction when trampling lagging, can not cause distortion or damaged.Because the good water-proof performance of external application glass fibre reinforced plastics, thereby after also having avoided conventional thermal insulating material to be soaked in water, the chlorion in the material is dialysed out, causes the equipment such as stainless steel pipeline, valve to produce the problem of intergranular corrosion.
3, corrosion resistance: anti-10% hydrochloric acid, oil resistant, water-fast steam, water absorption rate 0.3%; glass steel material has determined the characteristic of product acid resistant alkali; when the valve flanges packing ring damages the generation leakage; the acidity or the alkaline medium that flow out can not cause any damage to containment vessel, can continue after cleaning up to use.
4, high temperature resistant: thermal insulation layer adopts alumina-silicate ceramic fibre needle punched blanket or complex magnesium aluminum silicate watt shell; the safe handling temperature is 1000 ℃; what outer containment vessel adopted is anti-flaming glass fiber reinforced plastics; softening point is more than 150 ℃, is incubated head and shoulders above design temperature (ambient temperature+25 ℃ ± 15%) standard of appearance.Oxygen index 〉=34% satisfy the technical requirements of the industries such as electric power, petrochemical industry, metallurgical light industry fully, and the pipeline lagging has from fiery self-extinguish ability.
5, anti-aging: glass fibre reinforced plastics has stronger stability, can keep for a long time the physical properties of self in normal using process.
6, easy construction: the lagging installation procedure is easy, and its surface strength is high, and is not fragile; Save the time cost of heat preservation construction, shortened the completion time of project simultaneously.The installation of lagging is very convenient, after pipe insulation is finished, lagging is transported to the scene, carries out opening according to the jointing size and dimension, then the two halves lagging is buckled on the valve of insulation, tights a bolt just passable.
7, working life: under normal operation, can use more than 20 years and 1000 nothing damages of normal dismounting.The novel heat insulation cover can use continuously several pipe detection, repair cycle and not need to change new material, therefore also can save a large amount of maintenance testing costs.When valve need to overhaul, open the bolt of outside, lagging to be taken off, maintenance is buckled in lagging on the valve of insulation when finishing again again, and tighting a bolt gets final product.Each lagging leaves the space of operation for the packing gland screw of valve, will be convenient when needing tight packing like this, do not need lagging is carried out dismounting.
8, elegant in appearance: the valve on the heating pipeline if do not carry out good insulation, in repeatedly opening and closing process, inhomogeneously just may cause leakage owing to expanding with heat and contract with cold.And the novel heat insulation cover has formed a corrosion barrier, avoids corrosion and specious.
The utlity model has the advantages such as novel structure, easy, easy to use, the insulation of processing, water-proof performance are good, safe and reliable, elegant in appearance, it puts goods on the market in enormous quantities and will produce positive social benefit and significant economic benefit.
Description of drawings
The utility model has 16 width of cloth accompanying drawings, wherein:
The horizontal pipeline valve handle of the accompanying drawing 1 the utility model lagging plan view that makes progress;
Accompanying drawing 2 is accompanying drawing 1 side view;
Accompanying drawing 3 is accompanying drawing 1 plan view;
Accompanying drawing 4 is accompanying drawing 1 worm's eye view;
The horizontal pipeline valve handle of accompanying drawing 5 the utility model keeps flat the lagging plan view;
Accompanying drawing 6 is accompanying drawing 5 side views;
Accompanying drawing 7 is accompanying drawing 5 plan views;
Accompanying drawing 8 is accompanying drawing 5 worm's eye views;
The downward lagging plan view of the horizontal pipeline valve handle of accompanying drawing 9 the utility model;
Accompanying drawing 10 is accompanying drawing 9 side views;
Accompanying drawing 11 is accompanying drawing 9 plan views;
Accompanying drawing 12 is accompanying drawing 9 worm's eye views;
Accompanying drawing 13 the utility model vertical pipeline valve handles keep flat the lagging plan view;
Accompanying drawing 14 is accompanying drawing 13 side views;
Accompanying drawing 15 is accompanying drawing 13 plan views;
Accompanying drawing 16 is accompanying drawing 13 side views;
Accompanying drawing 17 the utility model Quick detachable heat-preservations cover plan view;
Accompanying drawing 18 is accompanying drawing 17 side views;
Accompanying drawing 19 is accompanying drawing 17 plan views;
Accompanying drawing 20 is accompanying drawing 17 worm's eye views.
In the drawings: 1, fixedly steel wire 8, lower shell body of fastening piece 2, Hough buckling surface 3, rain cover 4, valve rod hole 5, upper shell 6, base insulating layer 7, thermal insulation layer.
Embodiment
Embodiment 1
As shown in Figures 1 to 4, waterproof thermal-insulated cover is the horizontal positioned handle lagging that makes progress, and is comprised of protection housing and heat-insulating member; It is characterized in that parallel upper shell 5 and the lower shell body 8 of separately forming of described protection housing horizontal pipe; Upper shell 5 adopts the mode of Hough buckling surface 2 to combine with lower shell body 8, and upper shell 5 is fastening by fastening piece 1 stainless steel bolt, nut and Drop-proof spring pad with lower shell body 8; Lagging is followed successively by fixedly steel wire 7 of protecting sheathing, base insulating layer 6 and thermal insulation layer within outer.Be processed with valve rod hole 4 on the protection housing, in the outside of valve rod hole 4 rain cover 3 be housed; The internal diameter of rain cover 3 prevents that greater than the external diameter of threeway right angle section upper shell 5 rainwater from entering from valve rod hole.Fixedly chain of rain cover is equipped with at the rain cover two ends, and the rain cover fixedly chain the other end and lagging intermediate nut is fixed, and prevents that rain cover 3 because external cause comes off it, consists of potential safety hazard.Be placed with anti-cement between the valve lever in rain cover 3 and valve rod hole 4.
Upper shell 5, the lower shell body 8 usefulness glass fibre reinforced plastics of protection housing are made; The outer surface of upper shell 5, lower shell body 8 is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
Base insulating layer 6 adopts alumina-silicate ceramic fibre Nomex or a complex magnesium aluminum silicate watt shell to make.
Between the surface of contact of upper shell 5 and lower shell body 8 Stamping Steel Ribbon is housed.
The internal surface size of base insulating layer 6 leaves the surplus of hardware expanded by heating greater than the outer surface size of pipe fitting, leaves airtight air heat-insulation layer between base insulating layer 6 and pipe fitting.
Embodiment 2
Shown in Fig. 5-8, waterproof thermal-insulated cover is that the horizontal positioned handle keeps flat lagging, is comprised of protection housing and heat-insulating member; It is characterized in that parallel upper shell 5 and the lower shell body 8 of separately forming of described protection housing horizontal pipe; Upper shell 5 adopts the mode of Hough buckling surface 2 to combine with lower shell body 8, and Hough buckling surface surface of contact right angle section is downward, prevents that rainwater from entering lagging inside, and is placed with sealing gasket between the buckling surface, further stops rainwater to enter lagging.Upper shell 5 is fastening by fastening piece 1 stainless steel bolt, nut and Drop-proof spring pad with lower shell body 8; Lagging is followed successively by fixedly steel wire 7 of protecting sheathing, base insulating layer 6 and thermal insulation layer within outer.
Be processed with valve rod hole 4 on the protection housing, in the outside of valve rod hole 4 rain cover 3 be housed; Rain cover adopts tiltedly along structure, increases rainproof effect, helps the water conservancy diversion of rainwater.Be placed with anti-cement between the valve lever in rain cover 3 and valve rod hole 4.
Upper shell 5, the lower shell body 8 usefulness glass fibre reinforced plastics of protection housing are made; The outer surface of upper shell 5, lower shell body 8 is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
Base insulating layer 6 adopts the alumina-silicate ceramic fibre Nomex to make.
Between the surface of contact of upper shell 5 and lower shell body 8 Stamping Steel Ribbon is housed.
The internal surface size of base insulating layer 6 leaves the surplus of hardware expanded by heating greater than the outer surface size of pipe fitting, leaves airtight air heat-insulation layer between base insulating layer 6 and pipe fitting.
Embodiment 3
Shown in Fig. 9-12, waterproof thermal-insulated cover is the downward lagging of horizontal positioned handle, is comprised of protection housing and heat-insulating member; It is characterized in that the horizontally separated formation upper shell 5 of described protection housing and lower shell body 8; Upper shell 5 adopts the mode of Hough buckling surface 2 to combine with lower shell body 8, Hough buckling surface surface of contact right angle section is downward, and is identical with the valve handle direction, prevents that rainwater from entering lagging inside, and be placed with sealing gasket between the buckling surface, further stop rainwater to enter lagging.Upper shell 5 is fastening by fastening piece 1 stainless steel bolt, nut and Drop-proof spring pad with lower shell body 8; Lagging is followed successively by fixedly steel wire 7 of protecting sheathing, base insulating layer 6 and thermal insulation layer within outer.
Be processed with valve rod hole 4 on the protection housing, in the outside of valve rod hole 4 rain cover 3 be housed; Rain cover is adopted
Along structure, rain cover reduces both spaces near valve rod, increases rainproof effect, helps the water conservancy diversion of rainwater with tiltedly.Be placed with anti-cement between the valve lever in rain cover 3 and valve rod hole 4.
Upper shell 5, the lower shell body 8 usefulness glass fibre reinforced plastics of protection housing are made; The outer surface of upper shell 5, lower shell body 8 is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
Base insulating layer 6 adopts the alumina-silicate ceramic fibre Nomex to make.
Between the surface of contact of upper shell 5 and lower shell body 8 Stamping Steel Ribbon is housed.
The internal surface size of base insulating layer 6 leaves the surplus of hardware expanded by heating greater than the outer surface size of pipe fitting, leaves airtight air heat-insulation layer between base insulating layer 6 and pipe fitting.
Embodiment 4
Shown in Figure 13-16, waterproof thermal-insulated cover is vertically to place handle to keep flat lagging, is comprised of protection housing and heat-insulating member; It is characterized in that parallel upper shell 5 and the lower shell body 8 of separately forming of described protection housing horizontal pipe; Upper shell 5 and lower shell body 8 adopts the mode of Hough buckling surfaces 2 to combine, Hough surface of contact right angle section upwards, identical with the valve handle direction, prevent that rainwater from entering lagging inside, an end of Hough buckling surface 2 is processed into J type buckling surface; The protection housing is vertically installed, and above J type buckling surface is placed on, stops rainwater to enter lagging from the surface of contact slit.Upper shell 5 is fastening by fastening piece 1 stainless steel bolt, nut and Drop-proof spring pad with lower shell body 8; Lagging is followed successively by fixedly steel wire 7 of protecting sheathing, thermal insulation layer 6 and thermal insulation layer within outer.
Be processed with valve rod hole 4 on the protection housing, in the outside of valve rod hole 4 rain cover 3 be housed; Be placed with anti-cement between the valve lever in rain cover 3 and valve rod hole 4.
Upper shell 5, the lower shell body 8 usefulness glass fibre reinforced plastics of protection housing are made; The outer surface of upper shell 5, lower shell body 8 is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
Base insulating layer 6 adopts the alumina-silicate ceramic fibre Nomex to make.
Between the surface of contact of upper shell 5 and lower shell body 8 Stamping Steel Ribbon is housed.
The internal surface size of base insulating layer 6 leaves the surplus of hardware expanded by heating greater than the outer surface size of pipe fitting, leaves the air heat-insulation layer confined space between base insulating layer 6 and pipe fitting.
Embodiment 5
Shown in Figure 17-20, the Quick detachable heat-preservation cover, this example lagging is that the fastening piece 1 with top example 1-4 lagging changes dovetail clip into, come the upper shell 5 and lower shell body 8 of fastening lagging with the dovetail clip of corresponding size, the benefit of dovetail clip is exactly can easy disassembly, can reduce in a large number the just dress duration.
Upper shell 5, the lower shell body 8 usefulness glass fibre reinforced plastics of protection housing are made; The outer surface of upper shell 5, lower shell body 8 is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
Base insulating layer 6 adopts the alumina-silicate ceramic fibre Nomex to make.
Between the surface of contact of upper shell 5 and lower shell body 8 Stamping Steel Ribbon is housed.
The internal surface size of base insulating layer 6 leaves the surplus of hardware expanded by heating greater than the outer surface size of pipe fitting, leaves airtight air heat-insulation layer between base insulating layer 6 and pipe fitting.
The above; it only is better embodiment of the present utility model; but protection domain of the present utility model is not limited to this; all are familiar with those skilled in the art in the disclosed technical scope of the utility model, are equal to replace or change according to the technical solution of the utility model and design of the present utility model thereof all should be encompassed within the protection domain of the present utility model.

Claims (8)

1. a waterproof thermal-insulated cover is comprised of protection housing and heat-insulating member; It is characterized in that described protection housing comprises upper shell (5) and lower shell body (8); Upper shell (5) adopts the mode of Hough buckling surface (2) to combine with lower shell body (8), and is fastening by fastening piece (1); Described heat-insulating member is fixed on upper shell (5) and lower shell body (8) internal surface.
2. waterproof thermal-insulated cover according to claim 1 is characterized in that heat-insulating member comprises fixedly steel wire (7) of base insulating layer (6) and thermal insulation layer; Lagging is followed successively by fixedly steel wire (7) of protecting sheathing, base insulating layer (6) and thermal insulation layer from outside to inside.
3. waterproof thermal-insulated cover according to claim 1 is characterized in that being processed with on the described protection housing valve rod hole (4).
4. waterproof thermal-insulated cover according to claim 3 is equipped with rain cover (3) in the outside of valve rod hole (4).
5. according to claim 1 to 4 described waterproof thermal-insulated covers, it is characterized in that the upper shell (5) of described protection housing, lower shell body (8) make with glass fibre reinforced plastics; The outer surface of upper shell (5), lower shell body (8) is processed with the flame retardant epoxy glass fibre reinforced plastic coating.
6. waterproof thermal-insulated cover according to claim 1 and 2 is characterized in that described base insulating layer (6) adopts alumina-silicate ceramic fibre Nomex or a complex magnesium aluminum silicate watt shell to make.
7. waterproof thermal-insulated cover according to claim 1 is characterized in that between the surface of contact of described upper shell (5) and lower shell body (8) Stamping Steel Ribbon being housed.
8. waterproof thermal-insulated cover according to claim 1 is characterized in that the internal surface size of described base insulating layer (6) greater than the outer surface size of pipe fitting, leaves surplus and the airtight air heat-insulation layer of hardware expanded by heating.
CN 201220593703 2012-11-12 2012-11-12 Waterproof heat preserving sleeve Expired - Fee Related CN202914978U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220593703 CN202914978U (en) 2012-11-12 2012-11-12 Waterproof heat preserving sleeve

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Application Number Priority Date Filing Date Title
CN 201220593703 CN202914978U (en) 2012-11-12 2012-11-12 Waterproof heat preserving sleeve

Publications (1)

Publication Number Publication Date
CN202914978U true CN202914978U (en) 2013-05-01

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Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121420A (en) * 2014-07-28 2014-10-29 刘影 Valve protection cover
CN106402455A (en) * 2016-02-02 2017-02-15 桐庐奋飞实业有限公司 T-shaped Haff type valve metal outer cover device as well as manufacturing process thereof and process equipment thereof
CN106439396A (en) * 2016-11-25 2017-02-22 攀枝花煤业(集团)有限责任公司 Valve thermal-insulation structure
CN109490554A (en) * 2018-12-28 2019-03-19 南京新耀医疗技术有限公司 A kind of the small size automatic specific protein analyzer and analysis method of one-step method detection
CN111895224A (en) * 2020-07-10 2020-11-06 中国兵器工业第五九研究所 Modularization heat preservation shell structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121420A (en) * 2014-07-28 2014-10-29 刘影 Valve protection cover
CN106402455A (en) * 2016-02-02 2017-02-15 桐庐奋飞实业有限公司 T-shaped Haff type valve metal outer cover device as well as manufacturing process thereof and process equipment thereof
CN106439396A (en) * 2016-11-25 2017-02-22 攀枝花煤业(集团)有限责任公司 Valve thermal-insulation structure
CN109490554A (en) * 2018-12-28 2019-03-19 南京新耀医疗技术有限公司 A kind of the small size automatic specific protein analyzer and analysis method of one-step method detection
CN111895224A (en) * 2020-07-10 2020-11-06 中国兵器工业第五九研究所 Modularization heat preservation shell structure

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130501

Termination date: 20211112

CF01 Termination of patent right due to non-payment of annual fee