CN202420237U - Coil pipe heater with double cavity bodies - Google Patents
Coil pipe heater with double cavity bodies Download PDFInfo
- Publication number
- CN202420237U CN202420237U CN2011205753678U CN201120575367U CN202420237U CN 202420237 U CN202420237 U CN 202420237U CN 2011205753678 U CN2011205753678 U CN 2011205753678U CN 201120575367 U CN201120575367 U CN 201120575367U CN 202420237 U CN202420237 U CN 202420237U
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- steam
- outlet
- coiled pipe
- interlude
- heating coil
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Abstract
The utility model relates to a coil pipe heater with double cavity bodies. The heater comprises a first cavity body, a first coil pipe, a second cavity body and a second coil pipe, wherein the first cavity body comprises a cylinder-shaped middle section, an upper stopper, a lower stopper, a first steam inlet on the upper bulkhead and a first steam outlet on the lower bulkhead; the first coil pipe is accommodated in the middle section and comprises a first material outlet and a first material inlet; the second cavity body is formed an outer sleeve, a ring-shaped upper cover plate, a ring-shaped lower cover plate and a part of the middle section in an encircled manner and comprises a second steam inlet on the upper cover plate and a second steam outlet on the lower cover plate; and the second coil pipe is accommodated in the second cavity body and comprises a second material inlet and a second material outlet. A first material flowing through the first material inlet, the first coil pipe and the first material outlet is heated by steam flowing through the first cavity body, and a second material flowing through the second material inlet, the second coil pipe and the second material outlet is heated by steam flowing through the second cavity body.
Description
Technical field
The utility model relates to and can be used for the dual chamber heating coil that the ACH legal system is got amidatioon operation in the MAA technology.
Technical background
The ACH legal system is got in methacrylic acid (MAA) technology, and amidatioon hybrid reaction and amidatioon stage comprise following two coherent main reactions:
The first step is reflected at ACH and H
2SO
4Carry out in the mixing, be reacted into α-formamido isopropyl sulfuric acid hydrogen ester, chemical reaction is shown in reaction equation (1).
In this stage, the generation of middle ester is very fast, and reaction has a strong exothermicity, needs abundant cooling reaction compound to 90～101 ℃, and this is reflected in the stainless steel transformation pot that band stirs and accomplishes.
Second step was actual amidation process process, and ester was owing to Fast Heating position rotaring rearrangement synthesize methyl acrylic acid amides sulfate (MAAS) in the middle of reaction equation (1) was formed, and chemical reaction is shown in reaction equation (2).
Reaction equation (2) absorbs heat.Reaction temperature remains in 120～135 ℃ of scopes, and optimum value is 125～130 ℃.
Fig. 1 is the sketch map of the enamel jacket pipe that uses in the amidation process of prior art.
As shown in Figure 1, material flows into from material inlet B1, and flows out from material outlet B2.Steam flows into from steam inlet A1, and flows out from steam (vapor) outlet A2.Therefore, flow through the material of enamel jacket pipe by Steam Heating.In such amidation process, the scheme that the traditional handicraft of prior art adopts enamel jacket pipe polyphone to connect, shell side leads to low-pressure steam (0.4MPa, 160 ℃), and streams is heated and realizes position rotaring rearrangement through tube side.The shortcoming of this traditional handicraft is: 1, the connection of enamel jacket pipe polyphone causes occupation area of equipment big, and layout is loose; 2, enamel heat exchanger tube heat transfer coefficient is 24.2w/ (m
2℃), so heat exchange efficiency is lower; 3, the pipe flange junction that connects of polyphone insulation fully is so thermal losses is bigger; Streams holdup time in this tubular reactor is long; For example the long 50m of tube side, flow velocity 0.095m/s, last more than about 8.77min; Cause side reaction increase in the translocation reaction process,, then be prone to the hot-spot carbonization if it is less to produce load; Cause material loss to increase, and carbide causes adverse effect for follow-up each operation.
In addition, because pipeline is long, adpting flange is many, so, under pipeline is conducted oneself with dignity the effect of weight of material in addition, be prone to cause the pipeline amount of deflection to increase.On the other hand, enamel face stiffness deformability is relatively poor, is prone to cause burst porcelain and damages, and makes the maintenance of equipment frequency high, has increased maintenance cost.
Therefore, need a kind ofly can improve reaction efficiency, can reduce frequency of maintenance again, ensure the heater of amidatioon constant product quality simultaneously.
The utility model content
The technical problem that the utility model will solve provides can improve the efficiency of heating surface, reduce floor space and guarantee the heater of temperature stabilization.
In order to solve the problems of the technologies described above, the utility model provides a kind of dual chamber heating coil.This dual chamber heating coil comprises: first cavity; Comprise on interlude cylindraceous that erect to be provided with and the last lower limb that is connected to this interlude upper baffle with down silently, and comprise first steam inlet that is arranged on this upper baffle and be arranged on first steam (vapor) outlet that this time silently gone up; First coiled pipe spirals into spring-like by pipe, the diameter that it spirals and highly be suitable for being received within the said interlude, and comprise first material outlet and first material inlet that passes down silently and be connected its lower end that passes upper baffle and connect its upper end; Second cavity; Surround greater than the annular lower cover of the outer wall of annular upper cover plate, the lower limb that is connected this outer sleeve and the said interlude of the outer wall of the outer sleeve of the diameter of said interlude, the top edge that connects this outer sleeve and said interlude and the part of said interlude by the height diameter of height, and comprise second steam inlet that is arranged on the said upper cover plate and be arranged on second steam (vapor) outlet on the said lower cover less than said interlude; And second coiled pipe; Spiral into spring-like by pipe; The diameter that it spirals and highly be suitable for being received within said second cavity, and comprise second material inlet and second material outlet that passes this lower cover and be connected its lower end that passes this upper cover plate and connect its upper end.From this first material inlet get into via this first coiled pipe and from first material of this first material outlet output by the heat conduction heating of the steam that gets into this first cavity from this first steam inlet and flow out from this first steam (vapor) outlet through this first coiled pipe tube wall, and from this second material inlet get into via this second coiled pipe and from second material of this second material outlet output by the heat conduction heating of the steam that gets into this second cavity from this second steam inlet and flow out from this second steam (vapor) outlet through this second coiled pipe tube wall.
In a technical scheme of the utility model; Said dual chamber heating coil also can comprise first temperature-sensing element that is arranged on this first material outlet and first pneumatic control valve that is connected first steam inlet; The temperature signal that said first temperature-sensing element records sends to middle control machine; Should compare the temperature signal and the first normal temperature value by middle control machine, and control the aperture of this first pneumatic control valve from this first temperature-sensing element.
In a technical scheme of the utility model, this first normal temperature value can be 138 ℃ to 142 ℃.
In a technical scheme of the utility model; Said dual chamber heating coil also can comprise second temperature-sensing element that is arranged on this second material outlet and second pneumatic control valve that is connected second steam inlet; The temperature signal that said second temperature-sensing element records sends to middle control machine; Should compare the temperature signal and the second normal temperature value by middle control machine, and control the aperture of this second pneumatic control valve from this second temperature-sensing element.
In a technical scheme of the utility model, this second normal temperature value can be 128 ℃ to 133 ℃.
In a technical scheme of the utility model, can offer manhole on the said upper baffle.
In a technical scheme of the utility model, can offer manhole on the outer sleeve of said second cavity.
In a technical scheme of the utility model, said first coiled pipe and said second coiled pipe can be made by 316L stainless steel (00Cr17Ni14Mo2).
The dual chamber heating coil of the utility model can be realized improving the efficiency of heating surface, reduce the beneficial effect of floor space and assurance temperature stabilization.
Description of drawings
Fig. 1 is the sketch map of the enamel jacket pipe that uses in the amidation process of prior art.
Fig. 2 is the sketch map of the dual chamber heating coil of the utility model.
Fig. 3 is the temperature controlled sketch map that the dual chamber heating coil of the utility model is shown.
The specific embodiment
Fig. 2 is the sketch map of the dual chamber heating coil of the utility model.
As shown in Figure 2, the dual chamber heating coil of the utility model comprises first cavity 10, second cavity 20, first coiled pipe 30 and second coiled pipe 40.First cavity 10 comprises the upper baffle 12 and down silently 13 on interlude cylindraceous 11 that erect to be provided with and the last lower limb that is connected to this interlude 11, and comprises and be arranged on first steam inlet 14 on this upper baffle 12 and be arranged on silently first steam (vapor) outlet 15 on 13 of this time.First coiled pipe 30 spirals into spring-like by pipe; The diameter that it spirals and highly be suitable for being received within the said interlude 11, and comprise first material outlet 32 that passes upper baffle 12 and connect its upper end and pass down silently 13 and be connected first material inlet 31 of its lower end.Second cavity 20 is surrounded greater than the annular lower cover 23 of the outer wall of annular upper cover plate 22, the lower limb that is connected outer sleeve 21 and the interlude 11 of the outer wall of the outer sleeve 21 of the diameter of said interlude, the top edge that connects outer sleeve 21 and interlude 11 and the part of interlude 11 less than the height diameter of said interlude 11 by height, and comprises and be arranged on second steam inlet 24 on the upper cover plate 22 and be arranged on second steam (vapor) outlet 25 on the lower cover 23.Second coiled pipe 40 spirals into spring-like by pipe; The diameter that it spirals and highly be suitable for being received within second cavity 20, and comprise second material inlet 41 and second material outlet 42 that passes lower cover 23 and be connected its lower end that passes upper cover plate 22 and connect its upper end.From this first material inlet 31 get into via first coiled pipe 30 and from first material of first material outlet, 32 outputs by the heat conduction heating of the steam that gets into first cavitys 10 from first steam inlet 14 and flow out from first steam (vapor) outlet 15 through first coiled pipe, 30 tube walls, and from second material inlet 41 get into via second coiled pipe 40 and from second material of second material outlet, 42 outputs by the heat conduction heating of the steam that gets into second cavitys 30 from second steam inlet 24 and flow out from second steam (vapor) outlet 25 through second coiled pipe, 30 tube walls.
Fig. 3 is the temperature controlled sketch map that the dual chamber heating coil of the utility model is shown.
As shown in Figure 3; The dual chamber heating coil of the utility model also can comprise first temperature-sensing element 51 and first pneumatic control valve 53 that is connected first steam inlet 14 that is arranged on first material outlet 32; The temperature signal that first temperature-sensing element 51 records sends to middle control machine 50; In control machine 50 relatively from the temperature signal and the first normal temperature value of this first temperature-sensing element 51, and control the aperture of first pneumatic control valve 53.This first normal temperature value for example can be 138 ℃ to 142 ℃.
The dual chamber heating coil of the utility model also can comprise second temperature-sensing element 54 and second pneumatic control valve 55 that is connected second steam inlet 24 that is arranged on this second material outlet 42; The temperature signal that second temperature-sensing element 54 records sends to middle control machine 50; In control machine 50 relatively from the temperature signal and the second normal temperature value of second temperature-sensing element 54, and control the aperture of second pneumatic control valve 55.This second normal temperature value for example can be 128 ℃ to 133 ℃.
Referring to Fig. 2,, can offer manhole 16 on the upper baffle 12 in order to overhaul conveniently.For the bigger dual chamber heating coil of volume, manhole 16 can be the manhole that supplies maintainer's turnover.Equally, can offer manhole 26 on the outer sleeve 21 of second cavity 20.For the bigger dual chamber heating coil of volume, manhole 26 also can be the manhole that supplies maintainer's turnover.
In addition, such as those skilled in the art knowledge, the coiled pipe fixed mount can be set with fixed to one another between first coiled pipe 30 and first cavity 10 and between second coiled pipe and second cavity.
Preferably, first coiled pipe 30 and second coiled pipe 40 can be made by 316L stainless steel (00Cr17Ni14Mo2).Adopt the material of 316L stainless steel (00Cr17Ni14Mo2) mainly to consider simultaneously: the material of 1, carrying in first coiled pipe 30 and second coiled pipe 40 has certain chemical corrosivity, and the chemical resistance of 316L stainless steel (00Cr17Ni14Mo2) is better; 2, first coiled pipe 30 and second coiled pipe 40 need respectively in first cavity 10 and second cavity 20 spiral curl or spring-like, and the bending forming property of 316L stainless steel (00Cr17Ni14Mo2) is better; 3, the steam that the materials of carrying in first coiled pipe 30 and second coiled pipe 40 flow through in the tube wall through first coiled pipe 30 and second coiled pipe 40 and first cavity 10 and second cavity 20 respectively carries out heat exchange, and the thermal conductivity factor of 316L stainless steel (00Cr17Ni14Mo2) is higher.
What those skilled in the art may appreciate that is, the first above-mentioned steam inlet 14 and second steam inlet 24 can provide respectively from the steam of a vapour source or from the steam of different vapour sources, can confirm according to the applied environment of reality.
In addition, above-mentioned first steam inlet 14 and first steam (vapor) outlet 15 can oppositely use, and promptly first steam inlet 14 is as first steam (vapor) outlet, and first steam (vapor) outlet 15 is as first steam inlet.Equally, second steam inlet 24 and second steam (vapor) outlet 25 can oppositely use.
In addition, according to instructions for use, the second material discharging opening 42 can couple together through pipeline with the first material charging aperture 31, thereby realizes from the heating process system of the double dual chamber heating coil of flowing through of second material inlet, 41 to first material outlets 32.Equally, according to instructions for use, first material outlet 32 can couple together through pipeline with second material inlet 42, thereby realizes from the heating process system of the double dual chamber heating coil of flowing through of first material inlet, 31 to second material outlets 42.
The dual chamber heating coil of the utility model, socket second cavity around first cavity, and first coiled pipe and second coiled pipe that will be used for heat exchange be separately positioned among first cavity and second cavity, reduced the floor space of equipment greatly.In addition, first coiled pipe and second coiled pipe are made by 316L stainless steel (00Cr17Ni14Mo2), and its thermal conductivity factor is far above the enamel jacket pipe, can improve the productive rate of the production of acid amides etc.
The dual chamber heating coil of the utility model, through adopting coiled pipe, the coil pipe made of 316L stainless steel (00Cr17Ni14Mo2) material particularly improves about 30% than the enamel pipeline thermal conductivity of prior art.Secondly,, be prone to take the insulation measure, can significantly practice thrift thermal energy consumption because of, compact conformation little with the environment contact area.
The dual chamber heating coil of the utility model, the pipeline stroke that exposes is short, and material holdup time in equipment is short, for example, and the long 30m of tube side, flow velocity 0.15m/s lasts about 3.33min, and therefore, the side reaction in the Chemical Manufacture reduces, and can significantly promote product yield.
The dual chamber heating coil of the utility model; On first material outlet and second material outlet, temperature-sensing element is set respectively; To measure the warm information of material and be sent to middle control machine, and after the computer system computing, send control signal and be conveyed to corresponding steam control valve; Realize the control automatically of material temperature, make material temperature controlling more steady.
Those skilled in the art should be understood that, according to design demand and other factors, can carry out various modifications, combination, part combination and replacement.Such modification, combination, part combine and replacement falls within the scope of accompanying claims or its equivalent.
Claims (8)
1. a dual chamber heating coil is characterized in that, comprising:
First cavity, comprise on interlude cylindraceous that erect to be provided with and the last lower limb that is connected to this interlude upper baffle with down silently, and comprise first steam inlet that is arranged on this upper baffle and be arranged on first steam (vapor) outlet that this time silently gone up;
First coiled pipe spirals into spring-like by pipe, the diameter that it spirals and highly be suitable for being received within the said interlude, and comprise first material outlet and first material inlet that passes down silently and be connected its lower end that passes upper baffle and connect its upper end;
Second cavity; Surround greater than the annular lower cover of the outer wall of annular upper cover plate, the lower limb that is connected this outer sleeve and the said interlude of the outer wall of the outer sleeve of the diameter of said interlude, the top edge that connects this outer sleeve and said interlude and the part of said interlude by the height diameter of height, and comprise second steam inlet that is arranged on the said upper cover plate and be arranged on second steam (vapor) outlet on the said lower cover less than said interlude; And
Second coiled pipe spirals into spring-like by pipe, the diameter that it spirals and highly be suitable for being received within said second cavity, and comprise second material inlet and second material outlet that passes this lower cover and be connected its lower end that passes this upper cover plate and connect its upper end,
Wherein, From this first material inlet get into via this first coiled pipe and from first material of this first material outlet output by the heat conduction heating of the steam that gets into this first cavity from this first steam inlet and flow out from this first steam (vapor) outlet through this first coiled pipe tube wall, and from this second material inlet get into via this second coiled pipe and from second material of this second material outlet output by the heat conduction heating of the steam that gets into this second cavity from this second steam inlet and flow out from this second steam (vapor) outlet through this second coiled pipe tube wall.
2. dual chamber heating coil as claimed in claim 1; It is characterized in that; Also comprise first temperature-sensing element that is arranged on this first material outlet and first pneumatic control valve that is connected first steam inlet; The temperature signal that said first temperature-sensing element records sends to middle control machine, and control machine compares the temperature signal and the first normal temperature value from this first temperature-sensing element in this, and controls the aperture of this first pneumatic control valve.
3. dual chamber heating coil as claimed in claim 2 is characterized in that, this first normal temperature value is 138 ℃ to 142 ℃.
4. dual chamber heating coil as claimed in claim 2; It is characterized in that; Also comprise second temperature-sensing element that is arranged on this second material outlet and second pneumatic control valve that is connected second steam inlet; The temperature signal that said second temperature-sensing element records sends to middle control machine, and control machine compares the temperature signal and the second normal temperature value from this second temperature-sensing element in this, and controls the aperture of this second pneumatic control valve.
5. dual chamber heating coil as claimed in claim 4 is characterized in that, this second normal temperature value is 128 ℃ to 133 ℃.
6. like any one described dual chamber heating coil of claim 1 to 5, it is characterized in that, offer manhole on the said upper baffle.
7. like any one described dual chamber heating coil of claim 1 to 5, it is characterized in that, offer manhole on the outer sleeve of said second cavity.
8. like any one described dual chamber heating coil of claim 1 to 5, it is characterized in that said first coiled pipe and said second coiled pipe are made by the 316L stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205753678U CN202420237U (en) | 2011-12-31 | 2011-12-31 | Coil pipe heater with double cavity bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205753678U CN202420237U (en) | 2011-12-31 | 2011-12-31 | Coil pipe heater with double cavity bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420237U true CN202420237U (en) | 2012-09-05 |
Family
ID=46744994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205753678U Expired - Fee Related CN202420237U (en) | 2011-12-31 | 2011-12-31 | Coil pipe heater with double cavity bodies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420237U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990429A (en) * | 2015-07-30 | 2015-10-21 | 广东拉多美化肥有限公司 | Novel mixing boiler adhered material-removing device |
| CN107796123A (en) * | 2016-08-30 | 2018-03-13 | 江苏吉华化工有限公司 | Industrial chemicals heater |
-
2011
- 2011-12-31 CN CN2011205753678U patent/CN202420237U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990429A (en) * | 2015-07-30 | 2015-10-21 | 广东拉多美化肥有限公司 | Novel mixing boiler adhered material-removing device |
| CN107796123A (en) * | 2016-08-30 | 2018-03-13 | 江苏吉华化工有限公司 | Industrial chemicals heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20191231 |