RDP2-J3型恒功率電熱帶
RDP2-J3型恒功率電熱帶
Model RDP2-J3 constant watt heating cable
型號(hào)含義 Model explanation
| 單位長(zhǎng)度功率 Unit length watt:W/m |
| 絕緣層代號(hào)：J3-F46氟塑料 Insulation code: Fluroplastic |
| Q：加強(qiáng)型，普通型（省略）Reinforced, common(omitted) |
| 2：芯數(shù)，單相220V 工作電壓 2 core no., single phase 220V working voltage |
| RDP：并聯(lián)型電熱帶 Parallel heating cable |
例：
RDP2-J3-20：表示絕緣材料為F46氟塑料，20W//m的單相恒功率電熱帶。
RDP2（Q）-J3-30：表示絕緣材料為F46氟塑料，30W/m加強(qiáng)型恒功率電熱帶。
E.g:
RDP2-J3-20:insulation material is F46,20w/m single-phase constant watt heating cable
RDP2（Q）-J3-30：Insulation material is F46,30w/m reinforced constant watt heating cable
產(chǎn)品結(jié)構(gòu)與工作原理
Working principle
電源母線為二根平行絕緣銅線，在內(nèi)絕緣層上纏繞電熱絲，并將電熱絲每隔一定距離（即“發(fā)熱節(jié)長(zhǎng)”）與母線連接，形成連續(xù)并聯(lián)電阻（見(jiàn)圖1），母線通電后，各并聯(lián)電阻發(fā)熱，因而形成一條連續(xù)的加熱帶。
The bus wires are two paralleled insulated copper wires, the heating fiber wraps around the inner insulation layer. And the heating fiber connects to the bus wires at interval points(heating section length),so each section is paralleled connection and generate the heat continuously.
規(guī)格及主要技術(shù)特性 Dimension and main technical features
| 產(chǎn)品型號(hào) Model | 額定電壓 Reted voltage (V) | 額定功率 Rated watt (W/m) | 發(fā)熱節(jié)長(zhǎng) Heating section length (mm) | 使用長(zhǎng)度 Max. usable length (m) | 流體維持溫度 Max.holding temperature for the liquid(℃) | |
| 普通型 Common | 加強(qiáng)型 Reinforced | |||||
| RDP2-J3-10 | RDP2(Q)-J3-10 | 220 | 10 | 1310 | 225 | 130 |
| RDP2-J3-20 | RDP2(Q)-J3-20 | 220 | 20 | 930 | 160 | 120 |
| RDP2-J3-30 | RDP2(Q)-J3-30 | 220 | 30 | 730 | 145 | 95 |
| RDP2-J3-40 | RDP2(Q)-J3-40 | 220 | 40 | 630 | 126 | 75 |
注：流體維持溫度，是指管道內(nèi)介質(zhì)需要維持的工作溫度，一般不宜超過(guò)本表規(guī)定值。
Note: The max. holding temperature is the maximum temperature needed for the media in the pipes, not exceeding the value stated in this table.
常態(tài)絕緣電阻； ≧50MΩ/hm Normal insulation resistance:: ≧50MΩ/hm
介電強(qiáng)度：-2000V 50Hz/1min Dialectic force: -2000V 50Hz/1min
絕緣層材料：F46氟塑料 Insulation:F46
F46耐高：205℃ F46 Max. temperature：205℃
防爆標(biāo)志：e II T3 Anti-explosive: e II T3
防護(hù)等級(jí)：IP54 Protection grade:IP54
產(chǎn)品截面尺寸 Section size
RDP2-J3-10 普通型 RDP2（Q）-J3-10 加強(qiáng)型 RDP2-J3-10 Common RDP2（Q）-J3-10 Reinforced
RDP2-J3-20 普通型 RDP2（Q）-J3-20 加強(qiáng)型 RDP2-J3-20 Common RDP2（Q）-J3-20 Reinforced
RDP2-J3-30 普通型 RDP2（Q）-J3-30 加強(qiáng)型 RDP2-J3-30 Common RDP2（Q）-J3-30 Reinforced
RDP2-J3-40 普通型 RDP2（Q）-J3-40 加強(qiáng)型 RDP2-J3-40 Common RDP2（Q）-J3-40 Reinforced
圖2 RDP2-J3型電熱帶截面尺寸
Fig:2 Model RDP2-J3 heating cable section size
產(chǎn)品特點(diǎn)及應(yīng)用場(chǎng)合
Features and applications
恒功率電熱帶單位長(zhǎng)度的發(fā)熱量恒定，使用的電熱帶越長(zhǎng)，輸出的總功率越大，該電熱在現(xiàn)場(chǎng)能按實(shí)際需要長(zhǎng)度任意剪切此外富有柔軟性，可以方便地緊貼管道表面敷設(shè)。電熱帶外層的編織層不僅起著傳熱和散熱作用提高電熱帶的整體強(qiáng)度，同時(shí)還能作為安全接地線。
恒功率電熱帶與溫控器配合使用時(shí)，能較精確維持管道內(nèi)的介質(zhì)溫度。
The constant watt heating cable can set off constant heat. The more the cable, the bigger the heat generated. The cable can be cut in any length when necessary. It can laid-up against the surface of the pipes. The outer braid layer is used for dissipate heat as well as safe ground wire.
If it is used together with temperature controller, the cable can hold the temperature in the pipes precisely.
加強(qiáng)型電熱帶是在普通電熱帶外層包覆一層絕緣層，其余結(jié)構(gòu)及原理和普通型電熱帶相同，加強(qiáng)型電熱帶較普通電熱帶防腐能力強(qiáng)，機(jī)械強(qiáng)度更高，它更適合于防爆場(chǎng)合的埋敷地下或有腐蝕性氣體的場(chǎng)合使用。
The reinforced heating cable is derived from wrapping the insulation layer outside the common heating cable, and other structure is the same. The reinforced cable has more resistance to erosion, mechanical strength and suitable in anti-explosive place or in erosivegas.
| 由于母線截面積有限，為避免太大引起功率下降，每根電熱帶的使用長(zhǎng)度按表1選用；當(dāng)選用如圖3的供電方法時(shí)，每個(gè)電源點(diǎn)的管線伴熱長(zhǎng)度為電熱帶使用長(zhǎng)度的兩倍。 本電熱帶適用管道，閥門(mén)，泵體的伴熱，防凍和保溫，或者維持儀表管線的工藝溫度，如 1、在正常情況下連續(xù)流動(dòng)的低凝固管線使用，可避免介質(zhì)因停止流動(dòng)而凝固。 2、需要嚴(yán)格控制作業(yè)溫度的液體管線的伴熱和保溫（須配用溫度控制器）。 3、寒凍地區(qū)自來(lái)水管線及閥門(mén)的防凍，排水管，抽水管和冷凝管路的防凍。 4、沿海井臺(tái)管道的伴熱防凍。 5、一般管線儀表管線的伴熱保溫。 6、井口采油樹(shù)伴熱（取代水套爐），污水井伴熱。 7、機(jī)場(chǎng)跑道防冰雪封凍。 8、混凝土預(yù)制件防凍養(yǎng)護(hù)。 | As the bus line cross section is limited, in order to avoid the decreasing of the capacity, refer to Table 1 to the proper length for each heating cables. If the power supply is as shown in figure3 ,each heating length from each power point is twice the maximum usable length. The heating cable is used for heating or holding the temperature of pipes, valves and pumps. For example: 1. Applicable on the pipes in which flowing liquid will not become solid due to coolness. 2. Heating and holding the temperature precisely for the liquid pipelines. 3. Avoid freezing of the gape water pipelines, drainage pipes and condensing pipes. 4. Heating and anti-freezing of the sea oil pipelines 5. Holding the temperature of the common pipelines and instrument pipes. 6. Heating the oil well and sewage wells 7. Heating the airport road to avoid ice freezing. 8. Heating the concrete prepared parts. |
防爆說(shuō)明
Anti-explosive
| 該單相恒功率電熱帶按GB3836.1-83和GB3836.3-83即爆炸性環(huán)境用防爆電器設(shè)備“通用要求”和“增安型電器設(shè)備e”要求設(shè)計(jì)制造，防爆等級(jí)為“e II T3”，產(chǎn)品具有不延燃性，并通過(guò)密閉式電熱器要求的試驗(yàn)與防爆電器附件配套后，適用于不受外力直接沖擊的工廠一區(qū)、二區(qū)爆炸性氣體混合物T3組合物場(chǎng)所使用。 | This constant watt heating cable is made as per GB3836.1-83 and GB3836.3-83, i. e, general requirement for the anti-explosive equipment and safe electric apparatus grade E. The anti-explosive grade is “ e II T3”. Due to its non-extensive burning, the cable is used on the anti-explosive parts which are applicable in the area 1 and area 2 in factory under explosive gas mixture T3. |
