CN2193004Y - Anti-explosive oil heater - Google Patents
Anti-explosive oil heater Download PDFInfo
- Publication number
- CN2193004Y CN2193004Y CN 94225320 CN94225320U CN2193004Y CN 2193004 Y CN2193004 Y CN 2193004Y CN 94225320 CN94225320 CN 94225320 CN 94225320 U CN94225320 U CN 94225320U CN 2193004 Y CN2193004 Y CN 2193004Y
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- Prior art keywords
- explosion
- proof
- oil
- electrothermal tube
- junction box
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Abstract
The utility model belongs to the electric heater, particularly an anti-explosion oil heater which uses the heat transfer oil as the medium. The utility model is characterized in that a safety increasing anti-explosion connecting box or an explosion suppressing connecting box is formed by that an anti-explosion electric heating tube (2) is arranged in a hot oil furnace (3), the anti-explosion electric heating tube (2) enters into an anti-explosion connecting box (1) through a connecting sleeve (1-1) and is connected with a led in power cord, each of a single-expansion anti-explosion oil heater and a double-expansion anti-explosion oil heater are composed of a hot oil pump (14), connecting lines and a heat using equipment (9), the heating temperature is kept under 209 DEG C, the connecting faces are sealed, the utility model is waterproof and dustproof, the electric sparks of the connecting points are eliminated, the heat efficiency is larger than 90%, the anti-explosion mark is eT< 3 > or d< B >T< 3 >, and the utility model is suitable for supplying the inflammable and explosive places with heat safely.
Description
The utility model belongs to electrical heaters, and particularly a kind of is the explosion-proof oil heater of medium with the conduction oil.
Advantages such as oil heater is because of obtaining high temperature below 300 ℃ under lower pressure, temperature-controlled precision height, matching are strong, good energy-conserving effect and be widely used in industrial circles such as petrochemical industry, chemical industry, plastics, weaving, food, building materials, medicine, grease, timber processing.But because the electric appliance circuits of electric heating and oil pump operation, there is not the anti-explosion safety measure, in inflammable, explosive places such as chemical industry, petrochemical industry, electric appliance circuits very easily produces spark and dangerous temperature, ignite explosive mixture easily and set off an explosion, lead to industrial accident, oil heater is applied be restricted.
The purpose of this utility model is to overcome above technical deficiency, and a kind of explosion-proof oil heater that improves oil heater electrical heating elements and electric appliance circuits is provided.
Task of the present utility model is; the explosion-proof electrothermal tube of U-shaped is housed in explosion-proof oil heater electrothermal oil stove; 2 times of U-shaped protection metal pipe bending radius 〉=protection metal pipe radius; non-heated length is 150-180mm; explosion-proof electrothermal tube passes adapter sleeve and enters and connect with power line in the explosion-proof wiring case shell; adapter sleeve one end is in oil oven side and the welding of tube sheet flange, and the other end is inboard and junction box's base plate welding at junction box's shell, in electrothermal tube exit and the welding of electrothermal tube protection metal pipe.
The explosion-proof wiring case adopts when increasing the quick-fried junction box of security protection, box flange, end cap tightens up by the bolt and spring washer circle, the composition surface seals with rubber seal, junction box's shell is equipped with electric wire press disc type introducing device (1-8), and rubber seal is housed and anti-dialling taken off device, the electric wire of introducing (1-21 ') is fixed through the anti-pull-off device (1-9) of introducing device (1-8) and prevents the external force pull-off, and by binding post (1-14), connecting copper bar (1-13) is connected with the eduction rod (2-1) of the electrothermal tube that enters explosion-proof wiring case (1) (2).
When the explosion-proof wiring case adopts the flame proof junction box, composition surface between box flange and the end cap, connect by bolt, by selected composition surface length of explosion proof ratings adjustment and maximum safety clearance, prevent the outside propagation of explosion of Flameproof box, junction box's shell is equipped with electric wire press disc type introducing device (1-8), and rubber seal and anti-pull-off device (1-9) be housed, the electric wire of introducing (1-21 ') is fixed through the anti-pull-off device (1-9) of introducing device (1-8) and prevents the external force pull-off, and is connected with the eduction rod (2-1) of the electrothermal tube that enters explosion-proof wiring case (1) (2) by binding post (1-14) connection copper bar (1-13).
Copper bar spacing 〉=the 10mm of explosion-proof wiring case with junction box's outer casing inner wall distance 〉=15mm, eliminates the generation of creeping discharge and electric leaky.
The explosion-proof oil heater of the utility model, heating-up temperature remains on below the dangerous temperature, and the interior external ground of housing is good, and the composition surface water-tight is dustproof, eliminates the electric spark of tie point, makes explosion-proof oil heater in inflammable and explosive place safe operation heat supply.
Specify with by way of example below in conjunction with accompanying drawing.
Fig. 1 shows explosion-proof oil heater list expansion cycles system schematic.
Fig. 2 shows the two expansion cycles system schematic of explosion-proof oil heater.
Fig. 3 shows explosion-proof electrothermal tube structure figure.
Fig. 4 shows that increasing the quick-fried junction box of security protection reaches and oil oven johning knot composition.
Fig. 5 shows flame proof junction box and and oil oven johning knot composition.
Fig. 6 shows explosion-proof wiring case copper bar connection layout.
Fig. 7 shows explosion-proof wiring case binding post connection layout.
Fig. 1, Fig. 2 are that explosion-proof oil heater list expands and two expansion cycles system schematic.The explosion-proof wiring case (1) of explosion-proof oil heater list expansion system is connected with shell and tube heat exchange oil oven (3) by adapter sleeve (1-11), oil oven (3) is imported and exported explosion-proof thermocouple (4) is housed, the exit by oil-out valve (6) and pipeline with link to each other with hot equipment, hot oil pump (14) is equipped with in oil oven (3) lower end, pipeline is passed through in oil return, oil return opening valve (11), oil filter (9), hot oil pump (4) returns oil oven (3), fluid level controller (5) is housed on expander (7), the lower end links to each other with oil return pipe by expansion tube (12), and the upper end is passed through blast pipe (8) drain tap (11) and linked to each other with the system extreme higher position.
The two expansion cycles systems of explosion-proof oil heater, other is with single expansion cycles system, but its expander (7) is made up of repairing expander and exhaust outlet expander, realizes automatically controlled automatic vent draining and automatic repairing.
Fig. 3 is explosion-proof electrothermal tube structure figure; explosion-proof electrothermal tube global shape is a U-shaped; by eduction rod (2-1); coupling nut (2-2); plain cushion (2-3), spring pad (2-4); insulator (2-5); heater (2-8); protection metal pipe compositions such as (2-7); between heater (2-8) and protection metal pipe (2-7), fill insulating heat-conduction material MgO powder (2-6); 2 times of U-shaped protection metal pipe bending radius 〉=protection metal pipe (2-7) radius, non-heat generating part length is 150-180mm.
Fig. 4 reaches and oil oven johning knot composition for increasing the quick-fried junction box of security protection, and the explosion-proof electrothermal tube (2) that increases the quick-fried junction box of security protection passes adapter sleeve (1-11) and enters in the junction box (1).Adapter sleeve (1-11) end is in oil oven (3) side and tube sheet flange (1-12) welding; the other end is inboard and junction box (1) base plate welding at junction box's shell; protection metal pipe (2-7) welding at electrothermal tube (2) exit and electrothermal tube (2); increase the same end cap of the quick-fried junction box's shell of security protection (1-6) face-flange (1-4); by bolt (1-1); spring washer (1-2) tightens up; on the flange composition surface rubber seal (1-3) is being housed between shell (1-6) and the end cap (1-4); junction box (1) is provided with press disc type introducing device (1-8); and rubber ring (1-7) sealing is arranged between junction box's shell (1-6); and anti-electric wire pull-off device (1-9) is housed; the electric wire of introducing (1-21 ') by binding post (1-14), connect copper bar (1-13) and be connected with the eduction rod (2-1) of the electrothermal tube that enters the explosion-proof wiring case (2).Junction box (1) shell inside and outside wall is equipped with inside and outside earth stud (1-5) respectively (1-10), to guarantee good earth, junction box (1) inner surface spraying arc-proof enamel.
Fig. 5 reaches and hot oil furnace johning knot composition for the flame proof junction box, flame proof junction box end cap (1-4) is fastening by bolt (1-1) and spring washer (1-2) with flameproof enclosure (1-6), its plane engaging surface gap is 0.5-1.14mm, end cap (1-4) is 6-40mm with the composition surface length of explosion-resistant enclosure (1-6), other structures and with being connected of hot oil furnace, increase the quick-fried junction box of security protection together.
Fig. 6 is an explosion-proof wiring case copper bar connection layout, and copper bar (1-13) is pressed electrothermal tube (2) △ and is connected with the Y connection, copper bar spacing 〉=10mm, copper bar (1-13) and junction box's shell (1-6) inwall distance 〉=15mm.
Fig. 7 is an explosion-proof wiring case binding post connection layout, be fixed tightly on the copper bar (1-13) by binding post (1-22 '), plain cushion (1-20 '), spring pad (1-19 '), nut (1-18 '), relative by two shankses (1-17 ') concave surface then, right-angled intersection fastens the electric wire (1-21 ') of introducing, and tightens up with nut (1-15 ') spring pad (1-16 ').
The explosion-proof oil heater of the utility model is performed such work.The explosion-proof oil heater body that has hot oil furnace (3) and hot oil pump (14) is installed on the residing explosion hazard area of hot equipment (9), and by pipeline with hot equipment (9), expander (7) connects into single the expansion and pair expansion oil heater circulatory systems by Fig. 1 and Fig. 2.Power line is through being installed on the electric cabinet that closes on non explosion hazard area, and a branch road electric wire enters link to each other with the explosion-proof thermocouple of monitoring oil oven oil return opening and oil-out temperature monitoring temperature and be connected to the deep fat pumping with hot oil pump fire-proof motor junction box's binding post of the explosion-proof coupling box that is installed on body; Another branch road electric wire enters in its housing continuous with the binding post that is connected copper bar (1-13) (1-14) of explosion-proof electrothermal tube (2) by electrothermal tube explosion-proof wiring case (1) introducing device, for the explosion-proof electrothermal tube (2) of oil oven (3) send.When starting power supply opening hot oil pump (14) and being that electrothermal tube (2) is when sending electricity, fill with the conduction oil of whole system through two expansion oiling oil-supplementing systems of independent filling pump of single expansion oil heater system or two expansion oil heater system, under the promotion of hot oil pump (14), enter with the heat transferred hot user of hot equipment (9) the electric energy conversion by cutting down door (6) through oil-out after electrothermal tube (2) heating in the hot oil furnace (3).Unload after the heat and to cut down door (11) through oil return opening and enter and return hot oil pump (14) after oil filter (10) filters, go round and begin again, finish heat supplying process with hot equipment (9).To electrothermal tube (2) when sending electric heating; electrothermal tube employing explosion-proof electrothermal tube as shown in Figure 3 as thermal source; 2 times of U-shaped protection metal pipe bending radius 〉=protection metal pipe radius; prevent to simmer and split, be out of shape, cause that heater (2-8) and protection metal pipe (2-7) short circuit form the local overheating temperature.The non-heat generating part of electrothermal tube (2) is than common electrical heat pipe lengthening 150～180mm, be loaded in the adapter sleeve (1-11) between tube sheet flange (1-12) and junction box (1-6) base plate as the cooling section cooling, the terminals of electrothermal tube in junction box (1) be in operation remain on the safe temperature below 105 ℃.The binding post of electrothermal tube (2) is that eduction rod (2-1) is connected in explosion-proof wiring case (1) with power line.
When explosion-proof wiring case (1) employing increases the quick-fried junction box of security protection,, reached IP because of the flange composition surface and the introducing electric wire hole of housing (1-6) with end cap (1-4) all seals with rubber seal
54Requirement of shelter such as dustproof and waterproof, avoid entering moisture, conduction dust and fiber, cause short circuit accident, cause local dangerous temperature; Because of all are threaded and all adopt spring pad to connect in the housing, prevent to connect and get loose from drawing, electric wire (1-21 ') enters junction box's introducing device (1-8), for having the press disc type introducing device of anti-pull-off device, the binding post (1-14) of electric wire (1-21 ') and copper bar (1-13) adopts shanks (1-17 ') that electric wire (1-21 ') is pressed on the binding post (1-22 '), avoids producing electric spark because of conduction junction loose contact in the electrical operation.Connect to introduce the electric wire (1-21 ') and the copper bar (1-13) of electrothermal tube (2) and control spacing 〉=10mm, copper bar (1-13) and junction box's shell (1-6) spacing 〉=15mm, cabinet wall spraying arc-proof enamel, the inside and outside earth stud (1-5) of casing, (1-10) ground connection, prevent electric electric leakage and climb lonely possibility, avoid because of electric electric leakage and climb the lonely lonely light that produces.The highest heat supply temperature of the explosion-proof oil heater of 2 types of the present utility model reduces by 10 ℃ (being 290 ℃) than conventional oil heater again can make these all elements of explosion-proof oil heater and surface remain on below the dangerous temperature of the explosive mixture that ignites.
The explosion-proof wiring case is selected flame proof junction box's blast resistance construction as shown in Figure 5 for use, when producing the spark ignition in the junction box (1), because the composition surface exists by explosion proof ratings, be adjusted into 6～40mm composition surface length respectively, maximum experimental safe gap is 0.5～1.14mm, and not to the outer propagation of explosion of housing, eliminated the explosion hazard area electric heating and ignited.
All electric components of other supply line are as the motor of hot oil pump (14).Thermocouple (4), coupling box (13), fluid level controller (5), electromagnetic valve (17) etc. all adopt outsourcing standard explosion-proof type, thereby guaranteed that expand explosion-proof oil heater and two explosion-proof oil heaters that expand of the utility model list normally carry out duty cycle, safe operation heat supply when explosion hazard area send electricity.
Explosion-proof oil heater technical parameter
1, the highest heat supply temperature (℃) 180～290
2, temperature regulating range (℃) 20～290
3, heating power (kilowatt) 3～360
4, temperature-controlled precision (℃) ± 1～5 ℃
5, operating pressure (MPa)≤0.45
6, rated voltage (V) 380
7, the heat efficiency (%)＞90
8, explosion-proof sign e II T
3Or d II
BT
3
9, explosion-proof wiring case degree of protection IP
54
The utility model Anti-explosive oil heater is with existing common single the expansion Or two expansion oil heaters compare, and have realized comprehensive explosion-proofly, make product not have the danger of burning and blast in the explosion hazard area heat supply, have satisfied the heat supply needs of the utility model Anti-explosive oil heater to explosion hazard area.
Claims (7)
1, a kind of is carrier with the conduction oil, with the electrothermal tube is the explosion-proof oil heater of thermal source, by the explosion-proof wiring case, hot oil furnace, valve, expander, hot oil pump, circulation line with explosion-proof electrothermal tube heating are formed, it is characterized in that the explosion-proof electrothermal tube (2) that in hot oil furnace (3), is equipped with, pass adapter sleeve (1-1) and enter in the explosion-proof wiring case (1) and be connected with the power line of introducing;
2, explosion-proof oil heater according to claim 1, it is characterized in that said explosion-proof electrothermal tube (2) is a U-shaped, by eduction rod (2-1), coupling nut (2-2), plain cushion (2-3), spring pad (2-4), insulator (2-5), heater (2-8), protection metal pipe (2-7) is formed, between heater (2-8) and protection metal pipe (2-7), fill insulating heat-conduction material (2-6), 2 times of U-shaped protection metal pipe radius of curvature R 〉=metal tube radius, non-heating part length is 150-180mm;
3, explosion-proof oil heater according to claim 1, it is characterized in that said explosion-proof electrothermal tube (2) passes adapter sleeve (1-11) and enters explosion-proof wiring case (1), in hot oil furnace (3) side adapter sleeve (1-11) and tube sheet flange (1-12) welding, the other end is inboard and junction box (1) base plate welding at junction box's shell (1-6), in electrothermal tube (2) exit and protection metal pipe (2-7) welding;
4, explosion-proof oil heater according to claim 1, it is characterized in that said explosion-proof wiring case is for increasing the quick-fried junction box of security protection, shell (1-6) flange, end cap (1-4) is by bolt (1-1), spring washer (1-2) tightens up, between shell (1-6) and end cap (1-4), rubber seal (1-3) is housed, junction box (1) is provided with press disc type introducing device (1-8), the electric wire of introducing (1-21 ') by binding post (1-14), connect copper bar (1-13) and be connected with the eduction rod (2-1) of the electrothermal tube that enters explosion-proof wiring case (1) (2), shell (1-6) base plate is connected with electrothermal tube adapter sleeve (1-11);
5, explosion-proof oil heater according to claim 1, its characteristics are that said explosion-proof wiring case is the flame proof junction box, end cap (1-4) is connected by bolt (1-1) spring washer (1-2) with flameproof enclosure (1-6), its gap, composition surface 0.5～1.14mm, composition surface length is 6～40mm, housing (1-6) is equipped with press disc type introducing device (1-8), the electric wire of introducing (1-21 ') by binding post (1-14), connect copper bar (1-13) and be connected with the eduction rod (2-1) of the electrothermal tube that enters flame proof junction box (1) (2), shell (1-6) base plate is connected with electrothermal tube adapter sleeve (1-11);
6, according to claim 4 or 5 described explosion-proof oil heaters, it is characterized in that explosion-proof wiring case inner copper line (1-13) spacing 〉=10mm, with junction box's outer casing inner wall distance 〉=15mm;
7, according to claim 4 or 5 described explosion-proof oil heaters, it is characterized in that binding post (1-14) in the explosion-proof wiring case (1) is to be fixed tightly on the copper bar (1-13) by binding post (1-22 '), plain cushion (1-20 '), spring pad (1-19 '), nut (1-18 '), relative by two shankses (1-17 ') concave surface then, right-angled intersection fastens the electric wire (1-21 ') of introducing and tightens up with nut (1-15 ') spring pad (1-16 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225320 CN2193004Y (en) | 1994-02-07 | 1994-02-07 | Anti-explosive oil heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225320 CN2193004Y (en) | 1994-02-07 | 1994-02-07 | Anti-explosive oil heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2193004Y true CN2193004Y (en) | 1995-03-22 |
Family
ID=33838543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94225320 Expired - Fee Related CN2193004Y (en) | 1994-02-07 | 1994-02-07 | Anti-explosive oil heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2193004Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI568983B (en) * | 2015-09-11 | 2017-02-01 | 復盛股份有限公司 | Oil-heating mechanism of anti-hazard refrigerant compressor |
| CN111879004A (en) * | 2020-08-25 | 2020-11-03 | 镇江裕太防爆电加热器有限公司 | Electric heater for sealing sulfur-containing gas |
| CN112361343A (en) * | 2020-11-11 | 2021-02-12 | 江苏凯博斯防爆电加热器有限公司 | High heat accumulation formula of security burns burning furnace electric heater |
-
1994
- 1994-02-07 CN CN 94225320 patent/CN2193004Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI568983B (en) * | 2015-09-11 | 2017-02-01 | 復盛股份有限公司 | Oil-heating mechanism of anti-hazard refrigerant compressor |
| CN111879004A (en) * | 2020-08-25 | 2020-11-03 | 镇江裕太防爆电加热器有限公司 | Electric heater for sealing sulfur-containing gas |
| CN112361343A (en) * | 2020-11-11 | 2021-02-12 | 江苏凯博斯防爆电加热器有限公司 | High heat accumulation formula of security burns burning furnace electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |