CN105657873B - A kind of manufacture craft of double wrap silk structural resistance silk production heating tube - Google Patents

A kind of manufacture craft of double wrap silk structural resistance silk production heating tube Download PDF

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CN105657873B
CN105657873B CN201410445920.4A CN201410445920A CN105657873B CN 105657873 B CN105657873 B CN 105657873B CN 201410445920 A CN201410445920 A CN 201410445920A CN 105657873 B CN105657873 B CN 105657873B
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silk
double wrap
steel pipe
seamless steel
heating tube
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CN105657873A (en
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陈亮
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Yangzhong Xianglong Electrical Appliance Co., Ltd.
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陈亮
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Abstract

The invention discloses a kind of double wrap silk structural resistance silk and its it is made the manufacture craft of heating tube, it includes resistance wire ontology, the middle part bending of resistance wire ontology forms intermediate bending part, the resistance wire at the both ends of intermediate bending part carries out helical form bending and forms two spires, and two spires intersect to form hollow cylinder;The spire forms multiple continuous coilings circles by resistance wire progress helical form bending and forms, and each coiling circle portion's sleeve of one of spire is between corresponding two coilings circle portion of another spire.It uses the structure of double wrap silk, so that homogeneous heating inside its manufactured heating tube, simultaneously, the top that binding post is located at heater strip is not influenced by temperature, and stronger using its manufactured goods structure of this heating tube manufacture craft, safer, meanwhile long service life.

Description

A kind of manufacture craft of double wrap silk structural resistance silk production heating tube
Technical field
The invention belongs to resistance wire equipment technical field, more specifically to a kind of double wrap silk structural resistance silk and its system At the manufacture craft of heating tube.
Background technique
The resistance wire used in existing single head heating tube generally uses two kinds of structures, and one is will be in a resistance wire The both ends of portion's interconnecting piece carry out bending and are coiled into spire, completely separable between two spires, then at outer surface cover one Steel pipe, central filler insulating materials in heating process, will lead to steel duct and radiate non-uniform phenomenon, generate local mistake Thermal conductivity causes heater strip damage.
Second is to coil resistance wire to form cylindrical helical portion, and then, binding post below carries out transverse fold simultaneously The problem of upwardly extending so that the binding post of the top of the binding post and spire of lower section is in sustained height, bringing in this way be, In the heating tube that it is made into, during heating, temperature is very high, the binding post of the lower section of spire since length is longer, Its in the most intermediate of heating tube, temperature can be it is highest, be easy fusing or generate very high resistance value so as to cause heating function Rate substantially reduces.
Meanwhile existing heating tube manufacture craft is very simple, and only resistance wire is placed in stainless steel tube, and Insulation dust is added in stainless steel tube, its in the heating tube being made into this way is easy to contact resistance wire with stainless steel tube, makes Stainless steel tube heating is obtained unevenly to make resistance wire and stainless steel tube damage.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of double wrap silk structural resistance silk and its heating is made The manufacture craft of pipe, it uses the structure of double wrap silk, so that homogeneous heating inside its manufactured heating tube, meanwhile, binding post position It is not influenced by temperature in the top of heater strip, and stronger using its manufactured goods structure of this heating tube manufacture craft, It is safer, meanwhile, long service life.
The solution to the technical problem of the present invention is as follows:
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube, the double wrap silk structural resistance silk includes resistance Silk ontology (10), the middle part bending of resistance wire ontology (10) are formed intermediate bending part (1), the electricity at the both ends of intermediate bending part (1) It hinders silk and carries out helical form bending two spires (2) of formation, two spires (2) intersect to form hollow cylinder;The spiral shell Rotation portion (2) forms multiple continuous coilings circles by resistance wire progress helical form bending and forms, each of one of spire (2) Circle portion sleeve is coiled between corresponding two coilings circle portion of another spire (2), it is characterised in that: it includes following Step:
(1), the double wrap silk structural resistance silk is wound on magnesia tube (3);
(2), the tail portion of two solid-iron poles (4) is carried out flattening processing formation flattening portion (41);
(3), the both ends of double wrap silk structural resistance silk are welded on to the flattening portion (41) of the tail portion of two solid-iron poles (4) Upper formation center calandria;
(4), by center calandria sleeve in outer magnesia tube (5), wherein magnesia tube (3) sleeve of center calandria And holding, in the central through hole of the multiple baffles in inside (51) of outer magnesia tube (5), the intermediate of double wrap silk structural resistance silk is rolled over Turn of bilge (1) stretches out the central through hole of the lowermost baffle (51) of external oxidation magnesium pipe (5);
(5), by external oxidation magnesium pipe (5) sleeve in seamless steel pipe (6), rubber stopper is fixedly connected with column (7) sleeve and is consolidated It is scheduled on the top of seamless steel pipe (6), the top of two solid-iron poles (4) stretches out rubber stopper and is fixedly connected with column (7);
(6), seamless steel pipe (6) are inverted, isolation material powder is added in seamless steel pipe (6);
(7), by the tail end sleeve of seamless steel pipe (6) and welding plug (8);
(8), plug (8) is ground, keeps the diameter of plug (8) identical as the outer diameter of seamless steel pipe (6), then carries out Draw high temperature humidity discharging, last installation fastener as needed, and carry out detection packaging.
The manufacture craft of aforementioned a kind of double wrap silk structural resistance silk production heating tube, it is characterised in that: in the 6th step When seamless steel pipe (6) are inverted, the intermediate bending part (1) of resistance wire is hung using dropper (9).
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the 6th step In its carried out plus powder by powder feeding machine.
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the seamless steel Managing (6) is 321 stainless-steel seamless pipes.
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the third step In flattening portion (41) first carry out groove milling formed elongated slot (42), the end sleeve of double wrap silk structural resistance silk in elongated slot (42) simultaneously The end of double wrap silk structural resistance silk is welded on the side wall of elongated slot (42) by argon arc welding.
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the elongated slot (42) brass sealing weld is used in again.
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the 7th step In at tail end welding plug (8) of seamless steel pipe (6), first using argon arc welding melting welding one enclose, added after the completion of welding using lathe The outer wall of plug (8) is carried out grinding by work keeps the outer diameter of plug (8) identical as the outer diameter of seamless steel pipe (6).
A kind of manufacture craft of double wrap silk structural resistance silk production heating tube above-mentioned, it is characterised in that: the seamless steel The circle of argon arc welding melting welding one for managing tail end welding plug (8) Shi Caiyong of (6) is divided into two steps, first by plug (8) and seamless steel pipe (6) Between weld more than half, weld remaining part again after then equal basic cooling, and built-up welding one is enclosed again.
Protrusion effect of the invention is:
Compared with prior art, it uses the structure of double wrap silk, so that homogeneous heating inside its manufactured heating tube, together When, the top that binding post is located at heater strip is not influenced by temperature, and uses its manufactured goods knot of this heating tube manufacture craft Structure is stronger, safer, meanwhile, long service life.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the process figure of solid-iron pole of the invention;
Fig. 3 is the procedure chart of processing technology of the invention.
Specific embodiment
As shown in Figure 1, a kind of double wrap silk structural resistance silk, it includes resistance wire ontology 10, the middle part of resistance wire ontology 10 Bending forms intermediate bending part 1, and the resistance wire at the both ends of intermediate bending part 1 carries out helical form bending and forms two spires 2, and two A spire 2 intersects to form hollow cylinder.
The spire 2 forms multiple continuous coilings circles by resistance wire progress helical form bending and forms, one of spiral shell Each coiling circle portion's sleeve in rotation portion 2 is between corresponding two coilings circle portion of another spire 2.
Using the resistance wire of this structure, pass through the effect of middle part bending part 1, so that being absolute between two spires 2 It will not contact, and the two mutually intersects to form hollow cylinder, so that being uniformly heated.
In People's Republic of China's machinery industry standard tubular metal electric heating element (JB/T2379-1993), the 3rd product 3.1.1 single ended leads only have c, d way in classification, i.e., existing production method, and the present invention supplements the deficiency of standard, the 4.1.1.2 heating tube liquid heating surface load not more than 11w/cm2, and this resistance wire changes traditional single-end leading-out wire The mode of electrical heating elements production, so the present invention by testing proves that surface loading 18.5w/cm2 can be increased to, same In the case of the surface loading of sample, the service life of heating tube is substantially increased.Under same life situations, our volume can be with Accomplish it is smaller, more saving the cost of raw material.Or to can be adapted for pressure higher, in the higher liquid environment of temperature.
Heating tube made of resistance wire using this double winding structure, by magnesia tube 3, external oxidation magnesium pipe 5, solid-iron Pole 4, seamless steel pipe 6, rubber stopper are fixedly connected with column 7 and plug 8 forms, and resistance wire ontology 10 is wrapped in magnesia tube 3, electricity The both ends of resistance silk ontology 10 are welded with solid-iron pole 4, and 4 sleeve of solid-iron pole is fixed on the top of magnesia tube 3 Main magnesia tube 20 in, solid-iron pole 4 stretches out the top of main magnesia tube 20, and 3 sleeve of magnesia tube is in outer magnesia tube 5 In baffle 51 in, the outer wall holding of magnesia tube 3 is fixed on the side wall of the central through hole of baffle 51, the top of seamless steel pipe 6 End is fixed with rubber stopper and is fixedly connected with column 7, and the top of two solid-iron poles 4 stretches out rubber stopper and is fixedly connected with column 7, seamless steel pipe 6 tail end is welded with plug 8, is filled with isolation material powder in seamless steel pipe 6, this isolation material powder is in this industry It is routine techniques, is no longer described in detail.
Duplicate protection is carried out using magnesia tube 3, external oxidation magnesium pipe 5, guarantees that resistance wire ontology 10 will not be with seamless steel pipe 6 Inner wall be in contact, meanwhile, ensure that its heated heat dissipation uniformly, improve the service life of heating tube.
Moreover, baffle 51 therein improves the intensity of external oxidation magnesium pipe 5, and make magnesia tube 3 and external oxidation magnesium Fixation between pipe 5 is stronger.
As shown in Fig. 2 to 3, it is a kind of using this double wrap silk structural resistance silk production heating tube manufacture craft, it include with Lower step:
(1), double wrap silk structural resistance silk is wound in magnesia tube 3;
(2), the tail portion of two solid-iron poles 4 is carried out flattening processing formation flattening portion 41;Using flattening portion 41, with side Just fixed and welding.
(3), shape in the flattening portion 41 for the tail portion that the both ends of double wrap silk structural resistance silk are welded on two solid-iron poles 4 At center calandria;Meanwhile in the fixed main magnesia tube 20 in the top of magnesia tube 3,4 sleeve of solid-iron pole is in main magnesia In pipe 20;Using main magnesia tube 20, it is ensured that the fixation of solid-iron pole 4 is stronger.
(4), by center calandria sleeve in outer magnesia tube 5, wherein 3 sleeve of magnesia tube of center calandria and block It sets in the central through hole of the multiple baffles 51 in the inside of outer magnesia tube 5, the intermediate bending part 1 of double wrap silk structural resistance silk stretches out The central through hole of the lowermost baffle 51 of external oxidation magnesium pipe 5;It is fixed that magnesia tube 3 not only can be improved using 51 structure of baffle Firmness in outer magnesia tube 5, simultaneously, it is ensured that the spacing between magnesia tube 3 and external oxidation magnesium pipe 5 is certain, So that heat is more uniform between it after fill insulant powder, its service life is further increased.
(5), by 5 sleeve of external oxidation magnesium pipe in seamless steel pipe 6, rubber stopper is fixedly connected with 7 sleeve of column and is fixed on nothing The top of steel pipe 6 is stitched, the top of two solid-iron poles 4 stretches out rubber stopper and is fixedly connected with column 7;Wherein in order to guarantee solid-iron circle Stick 4 is fixedly connected with the leakproofness of column 7 with rubber stopper, fixed seal ring, sealing ring can be fixed on rubber in solid-iron pole 4 Plug is fixedly connected on column 7, so that its sealing effect is better.
(6), seamless steel pipe 6 is inverted, isolation material powder is added in seamless steel pipe 6;
(7), by the tail end sleeve of seamless steel pipe 6 and welding plug 8;
(8), plug 8 is ground, keeps the diameter of plug 8 identical as the outer diameter of seamless steel pipe 6, it is high then to carry out the draw Warm humidity discharging, last installation fastener as needed, and carry out detection packaging.Wherein, installation fastener is to be added as needed Dress is such as fixed on the outer wall of stainless-steel seamless pipe 6 by clip.
When being inverted seamless steel pipe 6 in the 6th step, using dropper 9 by the intermediate bending part of double wrap silk structural resistance silk 1 hangs.Using dropper 9, it is ensured that seamless steel pipe 6 vertically and ground so that plus powder uniformly and be not easy from seamless steel pipe 6 Middle outflow.
Its in 6th step is carried out by powder feeding machine plus powder.
The seamless steel pipe 6 is 321 stainless-steel seamless pipes.
Flattening portion 41 in the third step first carries out groove milling and forms elongated slot 42, and the end sleeve of resistance wire is in elongated slot 42 And the end of double wrap silk structural resistance silk is welded on the side wall of elongated slot 42 by argon arc welding.
Brass sealing weld is used in the elongated slot 42 again.
In 7th step in the tail end welding plug 8 of seamless steel pipe 6, is first enclosed, welded using argon arc welding melting welding one At it is rear using lathe process by the outer wall of plug 8 carry out grinding keep the outer diameter of plug 8 identical as the outer diameter of seamless steel pipe 6.
The circle of argon arc welding melting welding one used when the tail end welding plug 8 of the seamless steel pipe 6 is divided into two steps, first by plug 8 More than half (generally 3/4) is welded between seamless steel pipe 6, then welds remaining part again after equal basic cooling, and heap again One circle of weldering.Using such mode, the sealing effect between its plug 8 and seamless steel pipe 6 is preferably improved, prevents leakage significantly The possibility of powder, and also improve its service life.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.

Claims (8)

1. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube, the double wrap silk structural resistance silk includes resistance wire Ontology (10), the middle part bending of resistance wire ontology (10) are formed intermediate bending part (1), the resistance at the both ends of intermediate bending part (1) Silk carries out helical form bending and forms two spires (2), and two spires (2) intersect to form hollow cylinder;The spiral Portion (2) forms multiple continuous coilings circles by resistance wire progress helical form bending and forms, each disk of one of spire (2) Pitch of the laps portion sleeve is between corresponding two coilings circle portion of another spire (2), it is characterised in that: it includes following step It is rapid:
The first step winds the double wrap silk structural resistance silk on magnesia tube (3);
Second step carries out the tail portion of two solid-iron poles (4) to flatten processing formation flattening portion (41);
Third step, the both ends of double wrap silk structural resistance silk are welded on two solid-iron poles (4) tail portion flattening portion (41) Upper formation center calandria;
4th step, by center calandria sleeve in outer magnesia tube (5), wherein magnesia tube (3) sleeve of center calandria And holding, in the central through hole of the multiple baffles in inside (51) of outer magnesia tube (5), the intermediate of double wrap silk structural resistance silk is rolled over Turn of bilge (1) stretches out the central through hole of the lowermost baffle (51) of external oxidation magnesium pipe (5);
5th step, by external oxidation magnesium pipe (5) sleeve in seamless steel pipe (6), rubber stopper is fixedly connected with column (7) sleeve and solid It is scheduled on the top of seamless steel pipe (6), the top of two solid-iron poles (4) stretches out rubber stopper and is fixedly connected with column (7);
Seamless steel pipe (6) are inverted by the 6th step, and isolation material powder is added in seamless steel pipe (6);
7th step, by the tail end sleeve of seamless steel pipe (6) and welding plug (8);
Plug (8) is ground by the 8th step, is kept the diameter of plug (8) identical as the outer diameter of seamless steel pipe (6), is then carried out Draw high temperature humidity discharging, last installation fastener as needed, and carry out detection packaging.
2. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 1, it is characterised in that: institute When stating seamless steel pipe (6) inversion in the 6th step, the intermediate bending part (1) of resistance wire is hung using dropper (9).
3. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 1, it is characterised in that: Its in 6th step is carried out by powder feeding machine plus powder.
4. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 1, it is characterised in that: The seamless steel pipe (6) is 321 stainless-steel seamless pipes.
5. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 1, it is characterised in that: Flattening portion (41) in the third step first carries out groove milling and forms elongated slot (42), and the end sleeve of double wrap silk structural resistance silk is in length It is welded on the side wall of elongated slot (42) in slot (42) and by argon arc welding by the end of double wrap silk structural resistance silk.
6. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 5, it is characterised in that: Brass sealing weld is used in the elongated slot (42) again.
7. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 1, it is characterised in that: In 7th step at tail end welding plug (8) of seamless steel pipe (6), first enclosed using argon arc welding melting welding one, after the completion of welding The outer wall of plug (8), which is carried out grinding, using lathe process makes the outer diameter phase of the outer diameter of plug (8) with seamless steel pipe (6) Together.
8. a kind of manufacture craft of double wrap silk structural resistance silk production heating tube according to claim 7, it is characterised in that: Tail end welding plug (8) Shi Caiyong of the seamless steel pipe (6) argon arc welding melting welding one circle is divided into two steps, first by plug (8) with Seamless steel pipe welds more than half between (6), then welds remaining part again after equal basic cooling, and built-up welding one is enclosed again.
CN201410445920.4A 2014-08-27 2014-08-27 A kind of manufacture craft of double wrap silk structural resistance silk production heating tube Active CN105657873B (en)

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CN200947679Y (en) * 2006-09-05 2007-09-12 中国核动力研究设计院 Explosion-proof electric heater with dual-helix structure
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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN1358989A (en) * 2002-01-29 2002-07-17 清华大学 Heat-measuring type sensor for judging foam medium state
CN200947679Y (en) * 2006-09-05 2007-09-12 中国核动力研究设计院 Explosion-proof electric heater with dual-helix structure
CN103322816A (en) * 2013-05-22 2013-09-25 宋玉军 Multifunctional efficient tube type heating device
CN103801247A (en) * 2014-02-20 2014-05-21 中国科学院合肥物质科学研究院 Hydrothermal synthesis device under strong magnetic field

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