CN105407553A - Helical heating tube - Google Patents
Helical heating tube Download PDFInfo
- Publication number
- CN105407553A CN105407553A CN201510816709.3A CN201510816709A CN105407553A CN 105407553 A CN105407553 A CN 105407553A CN 201510816709 A CN201510816709 A CN 201510816709A CN 105407553 A CN105407553 A CN 105407553A
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- CN
- China
- Prior art keywords
- outer sleeve
- stud
- nut
- screw
- otic placode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses an electric heating element, and specifically a helical heating tube. The helical heating tube comprises a front shell and a back shell; a fastener is arranged between ear plates of the front shell and the back shell; the fastener comprises a bolt and a nut; an external thread is formed in the bolt and a stud; the nut is connected with the external thread in a threaded manner; an ear hole for allowing the stud to pass through is formed in the ear plate; the fastener also comprises an outer sleeve and a screw; the screw comprises a screw cap and a threaded rod that are formed integrally; an internal thread is formed in the threaded rod; the rotating direction of the internal thread is opposite to that of the external thread; the stud is arranged in the outer sleeve in a sleeving manner; the nut is arranged between the ear plate and the outer sleeve; the screw penetrates through the outer sleeve; the threaded rod is connected in the internal thread in a threaded manner; and the screw cap abuts on the outer sleeve. The helical heating tube overcomes the technical shortcoming that the fastener is easily loosened in the prior art; and instead, the helical heating tube is not loosened easily, and the shell of the helical heating tube is firmly connected.
Description
Technical field
The present invention relates to electrical heating elements field, specifically a kind of helical heating pipe.
Background technology
At present, along with the development of science and technology, the fields such as petroleum and chemical industry are also in fast development, and electric heater is at oil, the field such as chemical industry and natural gas has a wide range of applications, therefore the requirement of people to electric heater is more and more higher, and heating tube makes the vitals of electric heater inside, mainly by heating tube, it is heated, but existing heating tube because of its structural design unreasonable, the needs of people can not be met, in use not only heating effect is poor for existing heating tube, and after a long time use, deformation and heater contact internal walls can be there is in heating tube, cause the damage of heater, and existing heater is integrated, be unfavorable for the dismounting of staff, increase maintenance difficulty.
For solving the problems of the technologies described above, Chinese patent CN104754785 provides a kind of detachable spiral radiation heating tube, and it comprises body, and described body comprises ring flange, heating tube and electrode column.Body is made up of upper shell and lower house; Body side is provided with electrode column; Electrode column is coated with one deck electrode sleeve; Electrode column is connected with lower house with upper shell by ring flange; Electrode column extends to body interior and is connected with heating tube; Heating tube quantity is two; Heating tube surface coverage one deck heat-sink shell; Heating tube surface is provided with helical heating pipe; Fixed by connector between heating tube; Body interior is provided with electrode slice; Silicon dioxide pad is provided with on the right side of electrode slice; Inner body wall is provided with one deck high-temperature-resistant layer; High-temperature-resistant layer surface coverage one deck insulating washer; Multiple through hole is provided with on the right side of body; Body opposite side is provided with multiple anti-explosion terminal box.
But there is following technological deficiency in above-mentioned patent: upper and lower casing realizes being fastenedly connected by bolt assembly, but described in real work, bolt assembly easily loosens, and causes upper and lower casing to be separated from each other and comes off, and produces security incident.
Summary of the invention
The invention is intended to provide a kind of housing to connect fastening, the helical heating pipe not easily loosened.
Helical heating pipe in this programme, comprises procapsid, back casing and is located at the spiral heating tube in procapsid and back casing; Described procapsid and back casing are provided with the otic placode for docking, and are provided with securing member between procapsid and the otic placode of back casing; Described securing member comprises bolts and nuts, and described otic placode is located between bolts and nuts, and bolt comprises bolt head and stud, and described stud is provided with external screw thread, and nut thread is connected on described external screw thread, and otic placode is provided with the earhole passed for described stud; Described securing member also comprises outer sleeve and screw, described screw comprises integrated nut and screw rod, internal thread is offered in described stud, internal thread rotation to external thread rotary to contrary, described stud is sheathed in described outer sleeve, and described nut is located between otic placode and outer sleeve, and described screw penetrates in outer sleeve, and described screw flight is connected to described internal thread place, described nut is resisted against on described outer sleeve.
Adopt technical scheme of the present invention, there is following technique effect:
Described nut clamping and between otic placode and outer sleeve, and outer sleeve and screw lean, such nut will loosen with stud, and nut just must move together with screw with outer sleeve;
The screw rod of screw is threaded with stud, but the internal thread that screw rod is stud connects, and nut is connected with the external screw thread of stud, and the rotation direction of internal and external screw thread in opposite directions.When wanting like this, nut and screw move toward same direction, while just must rotating forward nut, and reverse rotation screw.Under normal circumstances, the mechanical disturbance with two kinds of rotation directions can not be there is, so just effectively prevent bolt by external mechanical disturbing influence and occur loosen.
Further, the annular tongue and groove of form fit is provided with between described nut and outer sleeve.
If between nut and outer sleeve be only abutting relation, that easily produces space between the two, aqueous vapor (or being called moisture) is entered between described screw rod and stud internal thread, causes structure herein to produce rose corrosion, will whole fastening anti-loosing effect be caused to lose thus.For this reason, the special annular tongue and groove arranging form fit between nut and outer sleeve, reaches the effect of sealing, avoids aqueous vapor to enter.
Further, spring shim between described stud head and otic placode.
Spring shim is used for locking, and flat shim does not loosen function, and namely plain cushion is only enlarged contact areas, and spring pad can play anti-loosing effect.
Further, the side opening of described procapsid and back casing is provided with the through hole for discharging water, and described through hole is provided with shutoff plug.
Described through hole and shutoff plug are with the use of the waste water in housing can being bled off.
Accompanying drawing explanation
Fig. 1 is the structural representation of securing member in embodiment of the present invention helical heating pipe.
Fig. 2 is the structural representation of embodiment of the present invention helical heating pipe.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: body 1, electrode column 2, electrode sleeve 3, ring flange 4, electric heating post 5, heating tube 6, otic placode 8, back casing 9, electrode slice 10, silicon dioxide pad 11, through hole 12, rubber buffer 13, alumina ceramic layer 14, connector 17, bolt 110, nut 20, otic placode 8, bolt head 114, external screw thread 12, nut 7, internal thread 164, outer sleeve 30, spring shim 15.
Embodiment is substantially as shown in Figure 2: the detachable spiral radiation heating tube of the present embodiment kind, it comprises body 1, and described body is provided with ring flange 4, electric heating post 5 and electrode column 2, and described body 1 is made up of procapsid and back casing 9.On described back casing, 9 are provided with otic placode 8(procapsid and are provided with position correspondence, the otic placode for abutting joint);
After procapsid is removed shown in Fig. 2, the internal structure schematic diagram of whole helical heating pipe.
As shown in Figure 1, securing member is provided with between procapsid and the otic placode of back casing; Described securing member comprises bolt 110 and nut 20, described otic placode 8 is located between bolts and nuts, and bolt comprises bolt head 114 and stud, and described stud is provided with external screw thread 122, nut thread is connected on described external screw thread, and otic placode is provided with the earhole passed for described stud.
Described body 1 side is provided with electrode column 2; Described electrode column 2 is coated with one deck electrode sleeve 3; Described electrode column 2 is connected with back casing 9 with procapsid by ring flange 4; Described electrode column 2 extends to body 1 inside and is connected with electric heating post 5; Described electric heating post 5 quantity is two; Described electric heating post 5 surface coverage one deck alumina ceramic layer 14; Described electric heating post 5 surface is provided with spiral heating tube 6; Fixed by connector 17 between described electric heating post 5.
Described securing member also comprises outer sleeve and screw, and described screw comprises integrated nut 7 and screw rod, offers internal thread 164 in described stud, internal thread rotation to external thread rotary to contrary, described stud is sheathed in described outer sleeve 30.
Described body 1 inside is provided with electrode slice 10; Silicon dioxide pad 11 is provided with on the right side of described electrode slice 10; The right side of back casing and procapsid is provided with multiple through hole 12, and described through hole is provided with shutoff plug; Two rubber buffers 13 are provided with, for being resisted against contiguous body of wall on the right side of described body 1.
Described nut is located between otic placode and outer sleeve, and described screw penetrates in outer sleeve, and described screw flight is connected to described internal thread place, and described nut is resisted against on described outer sleeve.
The electric heating post 5 that described body 1 inside is arranged is lectrothermal alloy wire or electrothermal alloy band, and fixed by connector 17 between described electric heating post 5, the silicon dioxide pad 11 that described body 1 inside is arranged, makes electric heating post 5 in use more stable, situation about offseting can not occur; The alumina ceramic layer 14 that described electric heating post 5 surface is arranged can improve the non-oxidizability of electric heating post 5, is conducive to the life-span extending electrothermal tube 5.
The annular tongue and groove of form fit is provided with between described nut 7 and outer sleeve.Spring shim 15 between described stud head and otic placode.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection range that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. helical heating pipe, comprises procapsid, back casing and is located at the spiral heating tube in procapsid and back casing; Described procapsid and back casing are provided with the otic placode for docking, and are provided with securing member between procapsid and the otic placode of back casing; Described securing member comprises bolts and nuts, and described otic placode is located between bolts and nuts, and bolt comprises bolt head and stud, and described stud is provided with external screw thread, and nut thread is connected on described external screw thread, and otic placode is provided with the earhole passed for described stud; It is characterized in that: described securing member also comprises outer sleeve and screw, described screw comprises integrated nut and screw rod, internal thread is offered in described stud, internal thread rotation to external thread rotary to contrary, described stud is sheathed in described outer sleeve, and described nut is located between otic placode and outer sleeve, and described screw penetrates in outer sleeve, and described screw flight is connected to described internal thread place, described nut is resisted against on described outer sleeve.
2. helical heating pipe according to claim 1, is characterized in that: the annular tongue and groove being provided with form fit between described nut and outer sleeve.
3. helical heating pipe according to claim 2, is characterized in that: spring shim between described stud head and otic placode.
4. helical heating pipe according to claim 3, is characterized in that: the side opening of described procapsid and back casing is provided with the through hole for discharging water, and described through hole is provided with shutoff plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816709.3A CN105407553A (en) | 2015-11-23 | 2015-11-23 | Helical heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510816709.3A CN105407553A (en) | 2015-11-23 | 2015-11-23 | Helical heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105407553A true CN105407553A (en) | 2016-03-16 |
Family
ID=55472732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510816709.3A Pending CN105407553A (en) | 2015-11-23 | 2015-11-23 | Helical heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105407553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612570A (en) * | 2017-01-05 | 2017-05-03 | 艾克森（江苏）节能电热科技有限公司 | Novel electric heating ring |
-
2015
- 2015-11-23 CN CN201510816709.3A patent/CN105407553A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612570A (en) * | 2017-01-05 | 2017-05-03 | 艾克森（江苏）节能电热科技有限公司 | Novel electric heating ring |
| CN106612570B (en) * | 2017-01-05 | 2023-12-29 | 艾克森（江苏）节能电热科技有限公司 | Novel electric heating ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |