CN102378420A - Heater of oil diffusion pump - Google Patents
Heater of oil diffusion pump Download PDFInfo
- Publication number
- CN102378420A CN102378420A CN2010102580164A CN201010258016A CN102378420A CN 102378420 A CN102378420 A CN 102378420A CN 2010102580164 A CN2010102580164 A CN 2010102580164A CN 201010258016 A CN201010258016 A CN 201010258016A CN 102378420 A CN102378420 A CN 102378420A
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- CN
- China
- Prior art keywords
- sleeve pipe
- diffusion pump
- oil diffusion
- heater
- electrothermal tube
- Prior art date
- 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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- Resistance Heating (AREA)
Abstract
The invention relates to a heater of an oil diffusion pump. The heater comprises a casing and an electric heating tube, wherein the electric heating tube is arranged in the casing, closely contacts the casting, extends out of the casting and is externally connected with a power cord. The invention provides an electric heating device of a high vacuum diffusion pump, which can effectively heat the diffusion pump at a high efficiency in a centralized mode and is convenient to maintain.
Description
Technical field
The electric heater unit that the present invention provides electric heater unit, particularly high vacuum oil diffuse pump that a kind of vacuum oil diffusion pump uses or oily booster pump to use.
Background technology
At present the numerous domestic high vacuum oil diffuse pump with do not have booster pump and need oil product in its cavity be heated to certain temperature owing to keep its operate as normal; Nearly three kinds of the employed electrothermal method of existing diffusion pump; The one, directly with common resistance furnace heating; The shortcoming (1) that adds with resistance furnace at first is that the resistance wire of surface charging directly exposes in air with the resistance furnace heating; The high-temperature oxydation phenomenon is serious, thereby is directed at the useful life and the weak point of resistance wire, and heavy electric furnace pan is changed quite difficult.(2) in the time of with resistance furnace heating diffusion pump, also process waste at the air of circumference, (3) under the particular surroundings that has electric furnace pan by dress difficulty relatively, thereby can't construct.(4) because of heating wire exposes, so safety problem also can not get ensureing.The 2nd, electric boiling plate relies on tight contact thermal to conduct to realize, with the shortcoming (1) of electric boiling plate because the electric boiling plate own wt is heavier; In energising heating process; Regularly itself will soften because heating plate self temperature reaches one, at first separate, seriously influence the electric hot plate heat-transfer effect with at the bottom of the pump thereby have the part; The body temperature can be increasingly high simultaneously, once separate heating plate end-of-life just.The 3rd, built-in single head heating rod heats, and single head heating rod shortcoming is (1) built-in single head heating rod by dress the time in order to insert very smoothly and to extract out, just must leave certain interval with the external diameter of heating rod with by adorning the hole; Gap location is to carry out heat conduction by air like this; This single head electrically heated rod of thermal efficiency ratio lower (2) is being heated to when high by discontinuity in the course of processing, at this moment under the effect of high temperature self stress; Will be out of shape; And stress deformation power is very big, and Sealed casing pipe that will soon the Oil Guide article drives distortion, difficulty relatively when when need are changed heating rod, wanting to extract out.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide a kind of and can be effectively diffusion pump be concentrated the electric heater unit of heating efficiently and high vacuum oil diffuse pump easy to maintenance.
Technical scheme of the present invention is: the electrothermal tube that closely contacts with sleeve pipe in the present invention includes sleeve pipe and being arranged on sleeve pipe, electrothermal tube extends and circumscripted power line in sleeve pipe.
Described electrothermal tube is the schizothecal formula; Its structure is the U type, and its openend passes in sleeve pipe, comprises thermal conductive shell that contacts with sleeve pipe and the heating wire that is provided with in the enclosure; The heating wire free end connects power line, and magnesia is established insulating barrier between heating wire and the thermal conductive shell.
The outer heat sink strip that contacts with sleeve pipe that is provided with of sleeve pipe.
This practicality newly in a moulding stainless steel sleeve pipe, is inserted the heating source that schizothecal formula heater is formed, and this schizothecal formula heater is a kind of long-life heater element; Its in-built electrical heated filament is hedged off from the outer world through magnesia, and shell is a stainless steel material, so this electrothermal tube has than long service live and higher serviceability temperature; This schizothecal formula heater when work is because the effect of self high temperature stress; Thereby separately closely stick together with internal surface of sleeve pipe from the trend both sides, better heat conduction when having guaranteed heating has reduced the heater table surface temperature; Also reduced simultaneously the high temperature deformation probability of Sealed casing pipe; Its heat that sends can be as soon as possible absorbed by the oil product in the diffusion pump cavity, reduce the surface temperature of metal sleeve, and moulding stainless steel sleeve pipe peripheral hardware has heat radiation/the add structure bar that powerful is an one in addition; It has certain heat sinking function, also plays simultaneously and does not allow casing deformation.Thereby improved the efficiency of heating surface greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is that heat sink strip, 2 is that sleeve pipe, 3 is that thermal conductive shell, 4 is that insulating barrier, 5 is that heating wire, 6 is power line among the figure.
Embodiment
Structure of the present invention is: the electrothermal tube that closely contacts with sleeve pipe 2 in the present invention includes sleeve pipe 2 and being arranged on sleeve pipe 2, electrothermal tube extends and circumscripted power line 6 in sleeve pipe 2.
Electrothermal tube of the present invention is preferably the schizothecal formula; Its structure is the U type, and openend passes in sleeve pipe 2, comprises thermal conductive shell 3 that contacts with sleeve pipe 2 and the heating wire 5 that is arranged in the shell 3; Heating wire 5 free ends connect power line 6, establish magnesia insulating barrier 4 between heating wire 5 and the thermal conductive shell 3.
The present invention further is provided with the heat sink strip 1 that contacts with sleeve pipe 2 outside sleeve pipe 2.
Claims (3)
1. the oil diffusion pump heater is characterized in that, the electrothermal tube that closely contacts with sleeve pipe in comprising sleeve pipe and being arranged on sleeve pipe, and electrothermal tube extends and circumscripted power line in sleeve pipe.
2. oil diffusion pump heater according to claim 1; It is characterized in that described electrothermal tube is the schizothecal formula, its structure is the U type; Its openend passes in sleeve pipe; Comprise thermal conductive shell that contacts with sleeve pipe and the heating wire that is provided with in the enclosure, the heating wire free end connects power line, establishes the magnesia insulating barrier between heating wire and the thermal conductive shell.
3. oil diffusion pump heater according to claim 1 is characterized in that, the outer heat sink strip that contacts with sleeve pipe that is provided with of sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102580164A CN102378420A (en) | 2010-08-20 | 2010-08-20 | Heater of oil diffusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102580164A CN102378420A (en) | 2010-08-20 | 2010-08-20 | Heater of oil diffusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102378420A true CN102378420A (en) | 2012-03-14 |
Family
ID=45796133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102580164A Pending CN102378420A (en) | 2010-08-20 | 2010-08-20 | Heater of oil diffusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102378420A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430778A (en) * | 2015-11-27 | 2016-03-23 | 王琳 | Plug-in type electrical heating tube |
| CN107314383A (en) * | 2017-08-14 | 2017-11-03 | 维珂瑞（北京）环境科技有限公司 | A kind of rotating pocket formula regenerative oxidation device of electric radiant tube heating |
| CN110121223A (en) * | 2018-02-06 | 2019-08-13 | 中国石油天然气股份有限公司 | Heating device and separation method for oil well operation |
-
2010
- 2010-08-20 CN CN2010102580164A patent/CN102378420A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105430778A (en) * | 2015-11-27 | 2016-03-23 | 王琳 | Plug-in type electrical heating tube |
| CN107314383A (en) * | 2017-08-14 | 2017-11-03 | 维珂瑞（北京）环境科技有限公司 | A kind of rotating pocket formula regenerative oxidation device of electric radiant tube heating |
| CN110121223A (en) * | 2018-02-06 | 2019-08-13 | 中国石油天然气股份有限公司 | Heating device and separation method for oil well operation |
| CN110121223B (en) * | 2018-02-06 | 2022-05-10 | 中国石油天然气股份有限公司 | Heating device and separation method for oil well operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |