CN2862568Y - Novel frame type electric heater - Google Patents
Novel frame type electric heater Download PDFInfo
- Publication number
- CN2862568Y CN2862568Y CN 200520127403 CN200520127403U CN2862568Y CN 2862568 Y CN2862568 Y CN 2862568Y CN 200520127403 CN200520127403 CN 200520127403 CN 200520127403 U CN200520127403 U CN 200520127403U CN 2862568 Y CN2862568 Y CN 2862568Y
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- porcelain
- hole
- electric heater
- spare
- connecting rod
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Abstract
A novel frame type electric heater is mainly used for metal heat treatment, including: frames, a connecting-rod stringing with porcelains thereon transversely racking between the frames and a resistance band separated and insulated by the porcelains, characterised that: three-hole porcelains are connected in series on all or part of the connecting-rod; a tube body inosculating with the connecting-rod is equiped in the middle of each three-hole porcelain; on both sides of the tube body, alar plates with orifices are provided correspondingly; a small porcelain tube which length inosculates with clear distance between the alar plates and which intenal diameter is similar to each orifice of the alar plate are equiped between the alar plates of adjacent three-hole porcelains; a connecting thread of each porcelain passes through and connects the orifice of the alar plate and an inner bore of the small porcelain tube; a groove frame having function of locking and closing the resistance band is formed between bunch of the three-hole porcelain tube bodies and the small porcelain tube, by the fact that the size of the groove frame is to just load the resistance band. The electric heater with simple structure can efficiently prevent the resistance band replacing and insulation nonserviceable, and is convenient for assembling and maintenance.
Description
Technical field
The utility model belongs to heater, and particularly a kind of postwelding stress relief annealing that is used for all kinds of large pressurized vessels and hardware and various electric heating drying plant and heat treatment furnace are made the novel frame electric heater of thermal source.
Background technology
The application mode that the frame electric heater is used for all kinds of large pressurized vessels and hardware heating has two kinds: a kind of is to be used for the assembly type resistance furnace, and it is hung on the furnace wall as heat source body; Another kind is the external stove integral annealing that is used for ghost class containers such as spherical tank, jar for sleeping in, is placed on and does heat source body in the container casing, and shell of tank coats insulation with the light-weight refractory heat-insulating material.In addition, the frame electric heater also is used as the thermal source of various electric heating drying plants and heat treatment furnace.
Common in the market frame electric heater (is seen Fig. 5, hereinafter to be referred as A type heater) be that the channel-section steel of suppressing with carbon steel sheet is a frame, between frame, laterally set up four T font porcelain spare connecting rods and nine porcelain tube connecting rods and constituting ladder shape framework jointly, be connected in series various porcelain spares on the connecting rod, resistive band is in the groove of bunchiness T font porcelain spare formation.T font porcelain spare is with resistive band and frame, connecting rod and respectively enclose and all keep apart effectively between the resistive band to realize insulation each other when the time comes.Nine porcelain tube connecting rods of the full porcelain tube of outside cover are divided into three rows, three of every rows in order to isolate and compress on the heater before and after two-layerly be close to parallel resistive band, promptly prevented the contact short circuit of two-layer resistive band, do not cause loosening from the groove that T font porcelain spare forms, the jumping out of resistive band to produce short circuit and burn again, in order to normal use.
Yet, but there is following defective in practice in the design of A type heater structure: the one failure of insulation, main cause: (1) high temperature down resistive band of work relax because of the heat expansion elongation, jumps out from the groove of bunchiness T font porcelain spare formation easily, causes the resistive band short circuit and is burnt out.(2) for prevent that resistive band from jumping out from the groove that bunchiness T font porcelain spare forms, it is darker that general groove is done, the external diameter of porcelain spare is bigger, so just increased the weight of porcelain spare, increased the load of porcelain spare connecting rod, when heater is the suspension status use, be positioned on the heater, under the two connecting rods weight that when bearing bunchiness T font porcelain spare weight, also will bear whole resistive bands, thereby be positioned on the heater, under two connecting rods very easily produce flexural deformation, the bending of connecting rod has aggravated the lax of resistive band again conversely, short its spins off from groove, causes vicious circle.Its two weight is big, and the life-span is short, poor reliability.Its three maintenance is difficult, because T font porcelain spare connecting rod design feature is thick in the middle of being, carefully there is screw thread at two ends, the band step, in a single day damages in the use, can't singlely remove from frame, as changing, needs carry out integral demounting to heater, has increased the difficulty of maintenance; And when heater hangs use on the assembly type resistance furnace, need at heater upper/lower terminal horizontal stroke (hanging) beam of burn-oning, this has further increased the difficulty that T font porcelain spare connecting rod is changed, and must cut off two horizontal strokes (hanging) beam this moment earlier, again weld again after fixing, very trouble.
The patent No. is the utility model patent of ZL 02243533.6, disclose a kind of novel frame formula resistive band heater and (seen Fig. 6, hereinafter to be referred as the Type B heater), it is by the rectangular frame of sealing, laterally equidistantly set up several connecting rods in the rectangular frame, and two connecting rods are resistant to bending special-shaped connecting rods wherein, bunchiness connects the porcelain spare that resistive band is sealed in locking respectively on each connecting rod, described porcelain spare is that a middle part has the body that coincide and be connected with connecting rod, body up and down two ends correspondence is provided with the groove of locking sealing resistive band, and the size of groove be porcelain spare with porcelain spare to adorning the groove frame that the is connected in series resistive band of packing into just.
Though the displacement and each other the contact short circuit of resistive band are locked and stoped to the Type B heater effectively, improved the security performance in insulation property, unfailing performance and the use of heater self, alleviated the weight of heater self, but there is following defective in practice: the one complex structure, the manufacturing cost height, main performance: (1) upper and lower two connecting rods are special-shaped connecting rod, and manufacture difficulty is big, the cost height.(2) it is complicated to be through the structure of the porcelain spare that can lock the sealing resistive band on the connecting rod, and intensity is low, and is fragile.The assembling of its two heater and maintenance difficult, the resistive band because the groove frame size of locking sealing resistive band is packed into just, thereby groove and resistive band some " other strength " during the heater assembling cause the difficulty of assembling.The porcelain spare of its three locking sealing resistive band is broken easily, and reason also is groove and resistive band " other strength ", and the column that leans on rib and body to link together on the porcelain spare produces brittle fracture along root easily.
Above-mentioned technical problem is perplexing the people in the industry, needs to be resolved hurrily.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that exists in the above-mentioned technology, and a kind of novel frame electric heater is provided, and it can not only lock the sealing resistive band effectively, prevent that the situation of failure of insulation from taking place, and simple in structure, easy to assembly, maintenance easily.
For achieving the above object, the utility model is realized with following technical scheme: a kind of novel frame electric heater, by frame, transverse strands is located at some between the frame connecting rods that are arranged in parallel and has constituted it and be the framework of ladder shape, wear full porcelain spare on the connecting rod in order to isolate, the insulated electro hot body, it is characterized in that: bunchiness is connecting combination porcelain spare on all or part connecting rod, described combination porcelain spare is formed by three-hole porcelain with the small porcelain tube that three-hole porcelain is equipped with, described three-hole porcelain is that a middle part has the body that coincide and be connected with connecting rod, body both sides correspondence is provided with wing plate, the axis that has aperture and aperture and body hole above the wing plate is on same plane, direction is identical, clear distance coincide between length and wing plate being equipped with between the wing plate of adjacent two three-hole porcelains, the small porcelain tube that internal diameter is identical with the wing plate aperture, the endoporus that combination porcelain spare connecting filament passes the aperture of wing plate and small porcelain tube connects together three-hole porcelain and small porcelain tube and has constituted the integral body of combination porcelain spare, between the body of three-hole porcelain on the combination porcelain spare of bunchiness and small porcelain tube, form groove frame, and the size of groove frame is the resistive band of packing into just with locking sealing resistive band function.
Preferably, bunchiness is connecting combination porcelain spare on the part connecting rod, wears completely big porcelain tube on other connecting rod, and this two classes porcelain spare that is connected bar serial connection alternately.
Preferably, upper and lower two connecting rods are the strong thick bars of a kind of bending resistance, and all the other connecting rods are thin bar, and the connecting rod cross section is circular.
Preferably, described three-hole porcelain profile generally is T font or cross.
Preferably, frame, connecting rod and other all metal parts are all made by heat resisting steel or heat-resisting alloy.
The beneficial effect that the utility model brings is as follows:
By the utility model, improved in insulation property, reliability and the use of heater self the security appliance performance of self, reduced failure rate, prolonged useful life.Improved the structure of insulating porcelain piece and connecting rod, make the heater manufacturing, use and maintenance is more convenient, easily.Further alleviate the weight of various parts, make heater lighter, flexible, energy-conservation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the structural representation of A type heater;
Fig. 6 is the structural representation of Type B heater.
Among the figure: 2 three-hole porcelains, 4 combination porcelain spare connecting filaments, (descending) connecting rod on 5,6 middle brace rods, 7 primary nuts, 8 frames, 9 resistive bands, 10 small porcelain tubes, 11 big porcelain tubes, 12 big nuts, the body of 13 three-hole porcelains, 14 groove frames, the wing plate of 15 three-hole porcelains.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, embodiment, structure, feature and effect thereof that foundation the utility model is provided further specify the utility model, but the utility model is not limited to this.
See also shown in Fig. 1～4, novel frame electric heater, laterally parallelly in the frame 8 that 2mm heat resisting steel is made set up the cross section that seven heat resisting steel make and be circular connecting rod, wherein bunchiness is connecting combination porcelain spare on four connecting rods, go up bunchiness for three and connecting big porcelain tube 11, alternately with this two classes porcelain spare of connecting rod serial connection.Described combination porcelain spare is formed by three-hole porcelain 2 with the small porcelain tube 10 that three-hole porcelain 2 is equipped with, three-hole porcelain 2 is that a middle part has the body 13 that coincide and be connected with connecting rod, body 13 both sides correspondences are provided with wing plate 15, the axis that has aperture and aperture and body hole above the wing plate in one plane, direction is identical, be equipped with at 15 of the wing plates of adjacent two three-hole porcelains that clear distance coincide between length and wing plate, the small porcelain tube 10 that internal diameter is identical with the wing plate aperture, combination porcelain spare connecting filament 4 passes the aperture of wing plate and small porcelain tube endoporus and three-hole porcelain and small porcelain tube are connected together has constituted the integral body of combination porcelain spare, between the body of three-hole porcelain on the combination porcelain spare of bunchiness and small porcelain tube, form groove frame 14, and the size of groove frame 14 is the resistive bands 9 of packing into just with locking sealing resistive band function.It is a kind of M14 turret head stay bolts that bunchiness is connecting upper and lower two connecting rods 5 that make up porcelain spare, slightly its bending resistance is strong because of diameter, equipped with the big nut 12 of M14 by frame 8, all the other middle brace rods 6 are M8 turret head stay bolt, and are equipped with the primary nut 7 of M8 by frame 8.
Compared with prior art, the utility model has produced following beneficial effect by the change of frame electric heater: because frame 8 and connecting rod all use the heat resisting steel high temperature resistant, anti-oxidant, that calorific intensity is high to replace ordinary carbon steel, not only improved heater high-temperature oxidation resistance, improved serviceability temperature and life-span but also can reduce the consumption of metal material significantly; Because connecting rod all is gauge structures such as circular section, it removes and installs and can carry out separately, thus easy to manufacture compared with the Type B heater, cost is lower, compared with A type heater be convenient to install, dismounting and maintenance; In the heater assembling, at first assemble three-hole porcelain 2, then adorn resistive band 9, wear combination porcelain spare connecting filament 4 and small porcelain tube 10 at last again, this just makes designed heater to be easy to assembling as A type heater, a difficult problem and the breakable shortcoming of porcelain spare of groove and resistive band " other strength " in the Type B heater have been overcome, can also lock resistive band securely to be enclosed in as the Type B heater and make up in the formed groove frame of porcelain spare, prevent that resistive band is jumped out the failure of insulation that is produced on the A type heater from groove; Three-hole porcelain 2 and small porcelain tube 10 are simple in structure compared with the porcelain spare of Type B heater, are easy to make; The significant improvement of all porcelain spares on planform and specification in addition reduces volume weight, thus make that the heater overall structure is more firm, light, flexible and convenient to use, the life-span prolongs.
The above, it only is preferred embodiment of the present utility model, be not that shape of the present utility model and structure are done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1, a kind of novel frame electric heater, by frame, transverse strands is located at some between the frame connecting rods that are arranged in parallel and has constituted it and be the framework of ladder shape, wear full porcelain spare on the connecting rod in order to isolate, the insulated electro hot body, it is characterized in that: bunchiness is connecting combination porcelain spare on all or part connecting rod, described combination porcelain spare is formed by three-hole porcelain with the small porcelain tube that three-hole porcelain is equipped with, described three-hole porcelain is that a middle part has the body that coincide and be connected with connecting rod, body both sides correspondence is provided with wing plate, the axis that has aperture and aperture and body hole above the wing plate is on same plane, direction is identical, clear distance coincide between length and wing plate being equipped with between the wing plate of adjacent two three-hole porcelains, the small porcelain tube that internal diameter is identical with the wing plate aperture, the endoporus that combination porcelain spare connecting filament passes the aperture of wing plate and small porcelain tube connects together three-hole porcelain and small porcelain tube and has constituted the integral body of combination porcelain spare, between the body of three-hole porcelain on the combination porcelain spare of bunchiness and small porcelain tube, form groove frame, and the size of groove frame is the resistive band of packing into just with locking sealing resistive band function.
2, according to claim 1 described novel frame electric heater, it is characterized in that: bunchiness is connecting combination porcelain spare on the part connecting rod, wears completely big porcelain tube on all the other connecting rods, and this two classes porcelain spare that is connected bar serial connection alternately.
3, according to claim 1 described novel frame electric heater, it is characterized in that: upper and lower two connecting rods are the strong thick bars of a kind of bending resistance, and all the other connecting rods are thin bar, and the connecting rod cross section is circular.
4, according to claim 1 described novel frame electric heater, it is characterized in that: described three-hole porcelain profile generally is T font or cross.
5, according to claim 1 described novel frame electric heater, it is characterized in that: frame, connecting rod and other all metal parts are all made by heat resisting steel or heat-resisting alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127403 CN2862568Y (en) | 2005-10-12 | 2005-10-12 | Novel frame type electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520127403 CN2862568Y (en) | 2005-10-12 | 2005-10-12 | Novel frame type electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862568Y true CN2862568Y (en) | 2007-01-24 |
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ID=37660196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520127403 Expired - Fee Related CN2862568Y (en) | 2005-10-12 | 2005-10-12 | Novel frame type electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862568Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108235477A (en) * | 2018-03-14 | 2018-06-29 | 宁波萨科森工业科技有限公司 | A kind of bayonet heater |
-
2005
- 2005-10-12 CN CN 200520127403 patent/CN2862568Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108235477A (en) * | 2018-03-14 | 2018-06-29 | 宁波萨科森工业科技有限公司 | A kind of bayonet heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20111012 |