聚氨酯直埋式保溫管常識的基本介紹
Basic Introduction of General Knowledge of Polyurethane Direct Buried Thermal Insulation Pipe
聚氨酯直埋式保溫管知識的根本引見,依照產(chǎn)品構造屬性和資料屬性大致可以分爲4品種型,沈陽鑫發(fā)保溫管廠歸結整理如下.
The basic introduction of the knowledge of polyurethane direct-buried insulating pipe can be roughly divided into four types according to the structure and information attributes of the product. Shenyang Xinfa insulating pipe factory is summarized as follows.
1 按保溫層結構劃分 低溫預制直埋式保溫管
1. Prefabrication of directly buried insulating pipes at low temperature according to the structure of insulating layer
(1)單一型：適用于150X2以下的供熱介質(zhì)，其中普通型適用于120C以下的供熱介質(zhì)，低溫型適用于120~150~c的供熱介質(zhì)(引薦運用溫度在140~2以下)。此類保溫管的保溫層由單一保溫資料——聚氨酯硬質(zhì)泡沫塑料構成，外護保溫層維護殼。
(1) Single type: suitable for heating medium below 150X2, of which the ordinary type is suitable for heating medium below 120C, and the low-temperature type is suitable for heating medium between 120 and 150 C (recommended operating temperature below 140 to 2). The thermal insulation layer of this kind of insulating pipe is composed of a single thermal insulation material, rigid polyurethane foam, and the outer thermal insulation layer maintains the shell.
(2)復合型：適用于低溫供熱介質(zhì)。此類保溫管的保溫層由兩種保溫資料復合而成。保溫層、保溫層的維護殼和經(jīng)過熱媒的任務鋼管，它們不能結實地粘接在一同。內(nèi)層爲新型耐低溫保溫資料，如離心玻璃棉氈、復合硅酸鹽、玻璃泡沫，外層用聚氨酯硬質(zhì)泡沫塑料停止復合制造。
(2) Compound type: suitable for low temperature heating medium. The insulation layer of this kind of insulation pipe is composed of two kinds of insulation materials. Insulation layer, maintenance shell of insulation layer and task steel pipe through heat medium can not be bonded together firmly. The inner layer is a new type of low temperature and thermal insulation material, such as centrifugal glass wool felt, composite silicate and glass foam, and the outer layer is made of polyurethane rigid foam plastics.
2 按維護殼資料劃分
2. Classification by Maintenance Shell Data
(1) 高密度聚乙烯塑料(俗稱夾克)維護殼。
(1) High density polyethylene plastic (commonly known as jacket) maintenance shell.
(2) 玻璃纖維加強不飽和聚酯樹脂塑料(俗稱玻璃鋼)維護殼。
(2) Glass fiber reinforced unsaturated polyester resin plastic (commonly known as FRP) maintenance shell.
(3) 采用其他資料的維護殼，如螺旋焊接鋼管、直焊縫鋼管、波紋管等。
(3) Maintenance shells with other data, such as spirally welded steel pipe, straight welded steel pipe, bellows, etc.
3 按保溫管加工場所劃分
3. According to the location of heat preservation pipe processing
(1)工廠預制保溫管：預制保溫管在工廠停止加工制造。
(1) Factory prefabricated insulating pipes: prefabricated insulating pipes stop processing and manufacturing in the factory.
(2)現(xiàn)場預制保溫管：這種產(chǎn)品是爲了節(jié)省供熱管道工程造價，在20世紀90年代應運而生的一種簡易的直埋供熱管道。鋼管運送到施工現(xiàn)場停止發(fā)泡保溫，保溫后纏繞玻璃鋼維護殼。
(2) Prefabricated insulating pipes on site: This product is a simple direct buried heating pipeline which came into being in the 1990s in order to save the cost of heating pipeline construction. The steel pipe is transported to the construction site to stop foaming and heat preservation, and winding the FRP maintenance shell after heat preservation.
4 按保溫層和熱媒鋼管的構造方式劃分 低溫預制直埋保溫管
4. Divide the low-temperature prefabricated direct-buried insulating pipe according to the structure of insulating layer and heat medium steel pipe
(1)脫開式保溫管：保溫層和鋼管之間涂一層低熔點的涂料，如低標號瀝青、重油等。它受熱后熔化，管道可以在保溫層內(nèi)自在伸縮，絕熱層和回填砂土堅持運動形態(tài)。這種脫開式次要用于低溫復合保溫管，如蒸汽管道。
(1) Open insulating pipe: a low melting point coating is applied between the insulating layer and the steel pipe, such as low-grade asphalt, heavy oil, etc. It melts after being heated, the pipeline can expand and contract freely in the insulation layer, and the insulation layer and backfill sand adhere to the movement pattern. This type of detachment is mainly used for low temperature composite insulation pipes, such as steam pipes.
(2)全體式保溫管：鋼管、保溫資料、維護殼三局部結實地粘結在一同，構成一個全體構造。當鋼管因保送介質(zhì)而溫度降低發(fā)作熱收縮時，絕熱層隨之一同收縮挪動。全體式保溫管次要用于熱媒溫度在150℃以下的場所。、
(2) All-purpose heat preservation pipes: steel pipes, heat preservation materials and maintenance shells are bonded together to form a whole structure. When the temperature of the steel tube decreases due to the delivery medium, the insulation layer shrinks and moves along with it. The whole heat preservation pipe is mainly used in places where the temperature of heat medium is below 150 C. ,
In summary, all the above-mentioned Shandong Hipper Pipe Technology Development Co., Ltd. provides, want to know the knowledge of polyurethane insulation pipe manufacturers, welcome to pay attention to our website: http://www.qndr49.cn Thank you for your support!
