CN201053667Y - Cooling device of high temperature heat furnace - Google Patents
Cooling device of high temperature heat furnace Download PDFInfo
- Publication number
- CN201053667Y CN201053667Y CNU2007200378538U CN200720037853U CN201053667Y CN 201053667 Y CN201053667 Y CN 201053667Y CN U2007200378538 U CNU2007200378538 U CN U2007200378538U CN 200720037853 U CN200720037853 U CN 200720037853U CN 201053667 Y CN201053667 Y CN 201053667Y
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- Prior art keywords
- cooling water
- withstand voltage
- water pipe
- furnace
- voltage tube
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Abstract
The utility model discloses a safe and reliable cooling device used in a high temperature heat furnace in the catalytic cracking device of petrochemical industry, comprising a pressure resistant cylinder, wherein, uniformly distributed cooling water pipes are arranged on the wall of the pressure resistant cylinder; the upper end of the cooling water pipe is communicated with a steam-water eduction tube through an upper annular collecting box; the lower end of the cooling water pipe is communicated with a descending flow pipe through a lower annular collecting box; a heat transfer layer is arranged between the wall of the pressure resistant cylinder and the wall of the cooling water pipe. The furnace of the utility model overcomes the hidden troubles that the aging and falling off of the liner of the prior furnace causes the overheating rupture of the furnace metal and causes accidents, so that the safety of the furnace is guaranteed reliably.
Description
Technical field
The utility model relates to high temperature heat furnace, refers more particularly to the cooling device of furnace body of high-temperature heating furnace.
Background technology
High temperature heat furnace is a visual plant in the catalytic cracking unit in the petroleum chemical industry, lower the temperature sending into about 400KPa pressure in the stove and thousands of degrees centigrade high-temperature flue gas, the temperature that makes flue gas arrive the high temperature heat furnace exit drops to the temperature of a certain appointment, and the temperature of this appointment is usually about 700 ℃.Because the high-temperature flue gas that enters in the stove has certain pressure, makes the body of heater of high temperature heat furnace not only will stand the high temperature of thousands of degree, and and also will bear certain pressure.As shown in Figure 1, a kind of traditional double-cylinder type high temperature heat furnace, the cooling device of its body of heater as shown in Figure 2, its structure generally includes: the cylindrical shape of being made by steel plate is withstand voltage tube 1, cylindrical shape is withstand voltage, and tube 1 inwall is provided with liner, and liner is made of heat-insulation layer 2 and refractory layer 3; On the sidewall of two withstand voltage tubes 1, offer smoke inlet 18 and exhanst gas outlet 19 respectively.The liner that is made of heat-insulation layer 2 and refractory layer 3 has avoided withstand voltage tube 1 directly to contact with the furnace high-temperature flue gas, has enough intensity to remove to bear the pressure of furnace high-temperature flue gas to guarantee withstand voltage 1.But; high temperature heat furnace is in long-term use; liner unavoidably can be because of aging etc. former thereby come off; if can not in time find, shutdown maintenance; the high-temperature flue gas of thousands of degree directly contacts in withstand voltage tube 1 and the stove, and the metal strength of withstand voltage tube 1 is descended greatly, when withstand voltage 1 metallic high temperature yield strength is lower than when overcoming the required intensity of inner flue gas of the stove pressure; high temperature heat furnace will break, and leads to major accident.
The utility model content
Technical problem to be solved in the utility model is: the cooling device that a kind of furnace body of high-temperature heating furnace of safety and reliability is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the cooling device of furnace body of high-temperature heating furnace, comprise: withstand voltage tube, the barrel of withstand voltage tube is provided with some vertically arranged cooling water pipes, the upper end of every cooling water pipe is connected with last annular header, last annular header is connected with the carbonated drink fairlead, and the lower end of every cooling water pipe is connected with following annular header, and following annular header is connected with the decline feed pipe; Be provided with heat transfer layer between the barrel of every cooling water pipe and withstand voltage tube.
Above-mentioned cooling water pipe is evenly arranged on the inwall of withstand voltage tube.
Above-mentioned cooling water pipe also can be evenly arranged on the outer wall of withstand voltage tube.
Above-mentioned following annular header can be arranged on the inboard of withstand voltage tube.
Above-mentioned following annular header can also be arranged on the outside of withstand voltage tube.
The beneficial effects of the utility model are: because furnace body of high-temperature heating furnace cooling device described in the utility model constitutes by on metal withstand voltage inwall or outer wall cooling water pipe being set, make that the temperature of withstand voltage tube is close with the water saturation temperature in the cooling water pipe, thereby overcome original body of heater and caused the unsafe factor that body of heater metallic walls overtemperature breaks because of reasons such as liner is aging come off, remove accident potential effectively, made the security performance of whole furnace body of high-temperature heating furnace obtain reliable assurance.
Description of drawings
Fig. 1 is the structural representation of the furnace body of high-temperature heating furnace described in the background technology;
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1;
Among Fig. 1, Fig. 2: 1, withstand voltage tube, 2, heat-insulation layer, 3, refractory layer, 18, smoke inlet, 19, exhanst gas outlet;
Fig. 3 is the structural representation of first kind of described body of heater of embodiment of the utility model;
Fig. 4 is the cross-sectional structure schematic diagram of body of heater shown in Figure 3;
Fig. 5 is the structure for amplifying schematic diagram of B part among Fig. 4;
Fig. 6 is the structural representation of second kind of described body of heater of embodiment of the utility model;
Fig. 7 is the cross-sectional structure schematic diagram of body of heater shown in Figure 6;
Fig. 8 is the structure for amplifying schematic diagram of D part among Fig. 7;
Fig. 9 is a kind of syndeton schematic diagram of following annular header and cooling water pipe;
Figure 10 is the another kind of syndeton schematic diagram of following annular header and cooling water pipe;
Among Fig. 3 to Figure 10: 1, withstand voltage tube, 2, cooling water pipe, 3, heat transfer layer, 4, carbonated drink fairlead, 5, decline feed pipe, 6, thermal protection layer, 7, go up annular header, 8, following annular header, 13, support positioning beam, 14, support positioning beam, 18, smoke inlet, 19, exhanst gas outlet, 20, connecting bend.
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples:
As Fig. 3, Fig. 4, shown in Figure 5, the cooling device of furnace body of high-temperature heating furnace described in the utility model, comprise: the withstand voltage tube 1 of steel, evenly be provided with the cooling water pipe 2 of some vertical arrangement on the inwall of withstand voltage tube 1, the upper end of cooling water pipe 2 is connected with carbonated drink fairlead 4 by last annular header 7, the lower end of cooling water pipe 2 is connected with decline feed pipe 5 by following annular header 8, being provided with heat transfer layer 3 between the inwall of withstand voltage tube 1 and the cooling water pipe 2---in the present embodiment, heat transfer layer 3 is exactly a weld layer; Offer smoke inlet 18 and exhanst gas outlet 19 on the sidewall of withstand voltage tube 1, the outer wall of withstand voltage tube 1 is provided with thermal protection layer 6, can prevent radiation loss; Above-mentioned following annular header 8 be arranged on withstand voltage tube 1 the inboard---its set-up mode is referring to shown in Figure 9.Be arranged in this body of heater of withstand voltage tube 1 inboard for cooling water pipe 2, in order to reduce being heated of annular header 8 down, can also will descend annular header 8 link to each other with cooling water pipe 2 by connecting bend 20---its set-up mode is referring to shown in Figure 10, thereby will descend annular header 8 to move to withstand voltage 1 the outside.In addition, also be provided with on the outer wall of withstand voltage tube 1 and be used to support fixing or spacing support positioning beam 13 and 14---referring to shown in Figure 3; In actual applications, above-mentioned cooling water pipe 2 can also be evenly arranged on the outer wall of withstand voltage tube 1---and its structure is referring to Fig. 6, Fig. 7 and shown in Figure 8; Perhaps can also on the inside and outside wall of withstand voltage tube 1, be provided with described cooling water pipe 2.
Operation principle of the present utility model is: drum is positioned at the top of high temperature heat furnace, and drum and decline feed pipe 5, time annular header 8, cooling water pipe 2, last annular header 7 and carbonated drink fairlead 4 are formed a water-cooling system; Water in the cooling water pipe 2 is added the lighter steam water interface of thermosetting by high-temperature flue gas to be got back to the drum from carbonated drink fairlead 4, after carbonated drink is separated, steam enters into output channel by the venthole in the drum, heavier water enters into cooling water pipe 2 along decline feed pipe 5 and following annular header 8 again, so just formed natural water circulation, guaranteed to continue in the cooling water pipe 2 that water is arranged, thereby guaranteed not overtemperature of the withstand voltage tube 1 of metal.In order to keep the water level in the drum, to often replenish the feedwater of treated mistake in the drum.In addition, because the existence of heat transfer layer 3, increased the contact area between cooling water pipe 2 and the withstand voltage tube 1, improved heat-transfer effect greatly,, owing to high-temperature flue gas it has been heated on the one hand as withstand voltage tube 1, make its temperature that the trend of continuous rising be arranged, continue to flow on the other hand and again the withstand voltage tube 1 most of heat that obtains is constantly taken away, so just formed a thermal balance, make near withstand voltage tube 1 saturation temperature that maintains all the time under the water-cooling system operating pressure through the water of cooling water pipe 2.
Claims (5)
1. the cooling device of furnace body of high-temperature heating furnace, comprise: withstand voltage tube [1], it is characterized in that: the barrel of withstand voltage tube [1] is provided with some vertically arranged cooling water pipes [2], the upper end of every cooling water pipe [2] is connected with last annular header [7], last annular header [7] is connected with carbonated drink fairlead [4], the lower end of every cooling water pipe [2] is connected with following annular header [8], and following annular header [8] is connected with decline feed pipe [5]; Be provided with heat transfer layer [3] between the barrel of every cooling water pipe [2] and withstand voltage tube [1].
2. cooling device as claimed in claim 1 is characterized in that: described cooling water pipe [2] is evenly arranged on the inwall of withstand voltage tube [1].
3. cooling device as claimed in claim 1 is characterized in that: described cooling water pipe [2] is evenly arranged on the outer wall of withstand voltage tube [1].
4. as claim 1,2 or 3 described cooling devices, it is characterized in that: described annular header [8] down is arranged on the inboard of withstand voltage tube [1].
5. as claim 1,2 or 3 described cooling devices, it is characterized in that: described annular header [8] down is arranged on the outside of withstand voltage tube [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200378538U CN201053667Y (en) | 2007-05-20 | 2007-05-20 | Cooling device of high temperature heat furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200378538U CN201053667Y (en) | 2007-05-20 | 2007-05-20 | Cooling device of high temperature heat furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053667Y true CN201053667Y (en) | 2008-04-30 |
Family
ID=39393330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200378538U Expired - Fee Related CN201053667Y (en) | 2007-05-20 | 2007-05-20 | Cooling device of high temperature heat furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053667Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307250A (en) * | 2007-05-20 | 2008-11-19 | 苏州海陆重工股份有限公司 | Cooling device for furnace body of high-temperature heating furnace |
-
2007
- 2007-05-20 CN CNU2007200378538U patent/CN201053667Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101307250A (en) * | 2007-05-20 | 2008-11-19 | 苏州海陆重工股份有限公司 | Cooling device for furnace body of high-temperature heating furnace |
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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: 20080430 Termination date: 20130520 |