螺旋板式換熱器
是一種高效換熱器設(shè)備，適用汽—汽、汽—液、液—液，對(duì)液傳熱。它適用于化字、石油、溶劑、醫(yī)藥、食品、輕工、紡織、冶金、軋鋼、焦化等行業(yè)。按結(jié)構(gòu)形式可分為不可拆式（Ⅰ型）螺旋板式及可拆式（Ⅱ型，Ⅲ型）螺旋板換熱器。
Spiral-plate heat exchanger is a kind of high efficient heat exchanger device which is applicable to vapor-vapor, vapor - liquid, liquid – liquid heat transfer to liquid. It is suitable for chemical, oil, solvents, pharmaceutical, food, light industry, textile, metallurgy, steel rolling, coking and other industries. It can be divided into non-detachable type (Ⅰ) and detachable type (Ⅱ, Ⅲ) spiral plate heat exchangers according to the structural form.
結(jié)構(gòu)及性能/Structure and performance
1、本設(shè)備適用于：液—液，氣—氣，氣—液對(duì)流傳熱可用于蒸汽冷凝和液體蒸發(fā)傳熱，化工，石油，醫(yī)藥，機(jī)械，電力，輕工和紡織等工業(yè)部門均可選用。
2、本設(shè)備由兩張板卷制而成，形成了兩個(gè)均勻的螺旋通道，兩種傳熱截止可進(jìn)行全逆流流動(dòng)，適用小溫差傳熱，便于回收低溫?zé)嵩床⒖蓽?zhǔn)確地控制出口溫度。
3、在殼體上的接管是切向結(jié)構(gòu)，局部阻力小，螺旋通道的曲率是均勻的，流體在設(shè)備內(nèi)流動(dòng)沒(méi)有大的換向，總的阻力小，因而可提高設(shè)計(jì)流速使之具備較高的傳熱能力。
4、螺旋通道的端面是焊接密封的，密封性能好，結(jié)構(gòu)可靠。
5、不易檢修，尤其是內(nèi)部板出現(xiàn)問(wèn)題時(shí)極難修理，有些廠把設(shè)備兩端焊縫全部車掉，重新將板展平補(bǔ)焊后再卷制，這樣做消耗的工時(shí)太大，因選用螺旋板式換熱防腐是十分重要的。
6、不能進(jìn)行機(jī)械清洗，生產(chǎn)實(shí)踐證明，螺旋板換熱器與一般列管式換熱器相比是不容易堵塞的，尤其是泥沙、小貝殼等懸浮顆粒雜質(zhì)不易在螺旋通道內(nèi)沉積，分析其原因；一是因?yàn)樗菃瓮ǖ离s質(zhì)在通道內(nèi)的沉積一形成周轉(zhuǎn)的流還就會(huì)提高至把它沖掉，二事故因?yàn)槁菪ǖ纼?nèi)沒(méi)有死角，雜質(zhì)容易被沖出。
7、因?yàn)槁菪ǖ纼?nèi)有定距柱支撐通道間距，甩以不得有纖維狀雜質(zhì)（棉紗，草棍，樹(shù)葉等）進(jìn)入換熱器內(nèi)部。
8、嚴(yán)格控制冷卻水出口溫度在結(jié)垢溫度以下。
9、常用的清洗方法是用蒸汽吹凈或堿洗，蒸汽吹入要向接管，把雜質(zhì)從設(shè)備內(nèi)吹出，很多使用廠認(rèn)為這是行之有效的方法。
1, this equipment is suitable for liquid - liquid, gas-gas, gas - liquid convection heat transfer which can be used for vapor condensation and liquid evaporation heat transfer. Therefore it is applicable in chemical industry, petroleum, medicine, machinery, electric power, light industry and textile industries, etc.
2, this equipment is composed by two pieces of steel plates to form two uniform spiral channels. Two heat transfer cut-off ways may realize fully reversed flow which is applicable for heat transfer with small temperature differential. Therefore it is easy for low temperature heat source recycling and accurate outlet temperature control.
3, the connection pipe on the shell is of tangential structure with small partial resistance. The curvature of spiral channel is even and the fluid has no large direction change inside the equipment. Therefore the total resistance is small which may increase design flow speed and realize higher heat transfer ability.
4. The end surface of spiral channel is sealed by welding, therefore the sealing performance is good with reliable structure.
5. It is not easy for inspection and repairing, especially when problems occur on inner plate. Some factories will cut off the weld joints at two ends of the equipment and spread the plate for welding repairing before rolling. However, this may takes a lot of time. Therefore corrosion proof is important when use spiral plate heat exchanger.
6. Mechanical cleaning is not allowed. It is proved by production practice that compared with general tube type heat exchanger, it is not easy to be blocked, especially, by the silt, small shell and other suspended particles and impurities which are not easy to be settled down in the spiral channel. The reasons are: 1. these impurities are settled down in single-direction channel and the impurities will be flushed away once rotating flow is formed. 2. There’s no dead corner inside the spiral channel, therefore the impurities are easy to be flushed away.
7. There are spacing columns inside the spiral channel to support distance in the channel, therefore fiber shaped impurities (cotton yarn, grass stick and leaves, etc.) are not allowed to enter inner part of the heat exchanger.
8. Temperature of cooling water outlet shall be strictly controlled below the scaling temperature.
9. The commonly used cleaning method is steam blowing off or alkaline cleaning. Steam blowing is to blow the impurities out of the equipment which is a effective method believed by many factories.
產(chǎn)品優(yōu)勢(shì)/Product advantages
螺旋板式換器通過(guò)多年實(shí)踐使用證名，確是一種高效換熱設(shè)備，它適用于化學(xué)、石油、溶劑、醫(yī)藥、食品、輕工、紡織，冶金，軋鋼、焦化等行業(yè)中應(yīng)用。換熱器吸取當(dāng)代*技術(shù)，經(jīng)*的優(yōu)化設(shè)計(jì)制造的液—液、汽—水熱交換器。產(chǎn)品結(jié)構(gòu)工藝按瑞典“阿爾法拉代”公司標(biāo)準(zhǔn)，螺旋板端面采用折邊氬弧焊，“頂距柱”工藝為電容蓄電接觸器，提高了內(nèi)在和外表的質(zhì)量得到“寶鋼”認(rèn)可，能取代進(jìn)口。
不可拆式螺旋板換熱器是按-機(jī)部標(biāo)準(zhǔn)JB/TQ 724-89不可拆式螺旋板換熱器形式，基本參數(shù)與尺寸的規(guī)定而進(jìn)行設(shè)計(jì)的，它具備制造簡(jiǎn)單，成本低，體積小和傳熱性能好等優(yōu)點(diǎn)，但也有它的不足之處，例如不能進(jìn)行機(jī)械清洗，壞了不易檢修等，選用者應(yīng)根據(jù)工程的實(shí)際情況選取具體的設(shè)備使之為有效。
After years of practice, spiral-plate heat exchanger is proved to be a high-efficient heat exchanging device which is applicable in chemistry, oil, solvent, medical, food, light industry, textile, metallurgy, steel rolling and coking industries, etc. By absorbing international modern and advanced technology and with unique and optimized design, the liquid-liquid, vapor-water heat exchanger is manufactured. The product structure process complies with standard of “`Aerfaladai” Company in Sweden. The end surface of spiral plate adopts hem arc welding. The special process of “Top distance pillar” is capacitor power storage contactor which improves inner and outer appearance and wins approval from “BaoGang”. It can replace imported product.
Non-detachable spiral plate heat exchanger is designed according to basic parameter and size stipulated in standard JB/TQ714-89 Form of non-detachable spiral plate heat exchanger by Ministry of Machinery Industry. It is of simple manufacturing, low cost, small size and good heat transfer performance, etc. It also has disadvantages, such as machinery cleaning is not allowed, hard for inspection & repairing when broken down. The user shall select specific equipment according to practical condition of the project to make it most effective.
