CN2298471Y - Combined iron-casting heat exchanger - Google Patents
Combined iron-casting heat exchanger Download PDFInfo
- Publication number
- CN2298471Y CN2298471Y CN 97223187 CN97223187U CN2298471Y CN 2298471 Y CN2298471 Y CN 2298471Y CN 97223187 CN97223187 CN 97223187 CN 97223187 U CN97223187 U CN 97223187U CN 2298471 Y CN2298471 Y CN 2298471Y
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- CN
- China
- Prior art keywords
- sheet
- stove
- heat exchanger
- forehearth
- apopore
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a combined iron-casting heat exchanger which enhances the heat efficiency of an iron-casting boiler. The combined iron-casting heat exchanger is mainly characterized in that outer walls of combustion chambers of a front boiler sheet and a middle boiler sheet are annular; the upper parts of the annular outer walls of the boiler sheets are heightened and are recessed in the direction of thickness, and a plurality of cone-into-cone zones are arranged in the recessed position.
Description
The utility model relates to combined type cast iron heat exchanger technical field.
Prior art medium cast iron boiler with it corrosion-resistant and service life longer and be subjected to users' welcome deeply than general boiler.But the thermal efficiency of general cast-iron boiler is not high to be again the major reason that its use is restricted.The not high basic reason of the thermal efficiency of general cast-iron boiler is that boiler internal surface area (comprising heat convection area and radiation heat transfer area) is less, and fuel combustion institute liberated heat can not fully be absorbed by the working medium in the boiler.The combustion-chamber shape of general cast-iron boiler mostly is shape, is not called as the dry bottom back of the body type that wets because the bottom has working medium, and like this, radiation heat transfer just can not be carried out in the bottom.The flue of general cast-iron boiler directly communicates with the combustion chamber, so just makes the flue gas that still has higher temperature in the combustion chamber directly enter flue and can not make full use of.
The purpose of this utility model is to improve the thermal efficiency of cast-iron boiler.
Technical conceive of the present utility model is:
(1) be that the part of boiler intracavity (working medium can arrive part) increases the ratio that the boiler inner surface accounts for burner hearth by increasing the bottom, combustion chamber, i.e. the wet back structure in the wet end.
(2) boiler design is become definite shape, make the part of boiler place the discharge-channel of flue gas, and make the surface area of this part body of heater big as much as possible, increasing the contact area with flue gas, absorb heat in the flue gas fully by heat convection.
The technical solution adopted in the utility model is:
This novel combination type cast iron heat exchanger, by preceding, in, the three kinds of stove sheets in back are formed, wherein the quantity of intermediate furnace sheet can dispose arbitrarily, three kinds of stove sheet outlines are in full accord, the bottom of forehearth sheet and back stove sheet is provided with two feets respectively, isolate with heat proof material between stove sheet and the stove sheet, sealing, be provided with water supply interface, the backwater interface, sentencing the metal Taper Pipe at apopore and backwater hole two between stove sheet and the stove sheet links to each other and seals, fastening between the sheet of front and back with screw rod, the outer wall of combustion chamber of forehearth sheet and intermediate furnace sheet is an annular, the internal structure of the two is the annular hollow cavity, be provided with backwater hole corresponding to the backwater interface on the forehearth sheet in the bottom of intermediate furnace sheet and back stove sheet, the top of three kinds of stove sheets is provided with apopore, apopore is added a cover outward, backwater hole and apopore place the left and right sides of heat exchanger respectively, the heat proof material of sealing usefulness is arranged on the left side of stove sheet between stove sheet and the stove sheet, right, following three sides, increase on the top of intermediate furnace sheet annular outer wall, double-edged top is all recessed at thickness direction, tow sides all are provided with some cones herein and become pyramidal area, also corresponding the increasing in one side top that the forehearth sheet is relative with the intermediate furnace sheet, and it is recessed at thickness direction, in correspondence herein pyramidal area is set, back stove sheet is made whole hollow cavity, the corresponding pyramidal area that is provided with of the one side relative with intermediate.
This novel advantage and good effect is:
When fuel after the internal combustion of combustion chamber, burning produces contains hot flue gas, enters auxiliary device by pyramidal area--flue.The heat exchange mode of this kind heat exchanger is: heat radiation and convection current in (1) burner hearth; (2) heat convection in the pyramidal area.Compared with prior art, a part of heat radiation and heat convection have been increased.After tested, the thermal efficiency of this kind boiler can reach 85%.
Below in conjunction with drawings and Examples the utility model is done description in further detail:
Fig. 1 is the structural representation of this novel combination type cast iron heat exchanger;
Fig. 2 is the structural representation of the intermediate furnace sheet of this novel combination type cast iron heat exchanger;
Fig. 3 is the structural representation of the back stove sheet of this novel combination type cast iron heat exchanger;
Fig. 4 is the A-A cutaway view of the back stove sheet of this novel combination type cast iron heat exchanger.
This novel combination type cast iron heat exchanger, by preceding 1, in 2, the 3 three kinds of stove sheets in back are formed, wherein the quantity of intermediate furnace sheet 2 can dispose arbitrarily, three kinds of stove sheet outlines are in full accord, the bottom of forehearth sheet 1 and back stove sheet 3 is provided with two feets 10 respectively, isolate with heat proof material 4 between stove sheet and the stove sheet, sealing, be provided with water supply interface 6, backwater interface 9, sentencing the metal Taper Pipe 11 liang of apopore 12 and backwater holes between stove sheet and the stove sheet links to each other and seals, front and back sheet 1, fastening between 3 with screw rod 13, combustion chamber 8 outer walls 14 of forehearth sheet 1 and intermediate furnace sheet 2 are annular, the internal structure of the two is the annular hollow cavity, be provided with backwater hole 11 corresponding to the backwater interface 9 on the forehearth sheet 1 in the bottom of intermediate furnace sheet 2 and back stove sheet 3, the top of three kinds of stove sheets is provided with apopore 12, apopore 12 outer adding a cover, backwater hole 11 and apopore 12 place the left and right sides of heat exchanger respectively, the heat proof material 4 of sealing usefulness is arranged on the left side of stove sheet between stove sheet and the stove sheet, right, following three sides, increase on the top of intermediate furnace sheet 2 annular outer walls, double-edged top is all recessed at thickness direction, tow sides all are provided with 5 one-tenth pyramidal areas of some cones herein, also corresponding the increasing in one side top that forehearth sheet 1 and intermediate furnace sheet 2 are relative, and it is recessed at thickness direction, in correspondence herein pyramidal area is set, back stove sheet 3 is made whole hollow cavity, one side corresponding the be provided with pyramidal area relative with intermediate 2.
Forehearth sheet 1 and the difference of intermediate furnace sheet 2 are that not relative with intermediate 2 side need not be provided with pyramidal area, and the interface of some instrument correspondingly are set and two feets 10 are set in the bottom.
Back stove sheet 3 is not to do to circularize, but whole hollow cavity, and the one side relative with intermediate 2 is arranged to corresponding pyramidal area, and not corresponding one side just need not be provided with pyramidal area, but in the bottom spare interface is set, and two feets 10 also are set in the bottom.
The cone 5 of pyramidal area can be arranged to staggered corresponding the arrangement, as Fig. 2, Fig. 3, the flue gas of higher temperature is more contacted with the cone 5 of pyramidal area, and heat exchange is more abundant, and waste heat can be utilized.
Also can be provided with one in the apopore 12 of forehearth sheet 1 does not have a jar heat exchanger 7, during boiler work, can provide the domestic hot-water fast, expediently.
Select Fig. 1 as Figure of abstract.
Claims (3)
1, a kind of combined type cast iron heat exchanger, by preceding (1), in (2), (3) the three kinds of stove sheets in back are formed, wherein the quantity of intermediate furnace sheet (2) can dispose arbitrarily, three kinds of stove sheet outlines are in full accord, the bottom of forehearth sheet (1) and back stove sheet (3) is provided with two feets (10) respectively, isolate with heat proof material 4 between stove sheet and the stove sheet, sealing, be provided with water supply interface (6), backwater interface (9), sentencing the metal Taper Pipe at apopore (10) and backwater hole (11) two between stove sheet and the stove sheet links to each other and seals, fastening between the front and back sheets (1) (3) with screw rod (13), combustion chamber (8) outer wall (14) that it is characterized in that forehearth sheet (1) and intermediate furnace sheet (2) is annular, the internal structure of the two is the annular hollow cavity, be provided with backwater hole (11) corresponding to the backwater interface (9) on the forehearth sheet (1) in the bottom of intermediate furnace sheet (2) and back stove sheet (3), the top of three kinds of stove sheets is provided with apopore (12), apopore (12) is outer adds a cover, backwater hole (11) and apopore (12) place the left and right sides of heat exchanger respectively, the heat proof material (4) of sealing usefulness is arranged on the left side of stove sheet between stove sheet and the stove sheet, right, following three sides, increase on the top of intermediate furnace sheet (2) annular outer wall, double-edged top is all recessed at thickness direction, tow sides all are provided with some cones (5) herein and become pyramidal area, also corresponding the increasing in one side top that forehearth sheet (1) is relative with intermediate furnace sheet (2), and it is recessed at thickness direction, in correspondence herein pyramidal area is set, back stove sheet (3) is made whole hollow cavity, one side corresponding the be provided with pyramidal area relative with intermediate (2).
2, combined type cast iron heat exchanger according to claim 1 is characterized in that the staggered corresponding arrangement that is set to of pyramidal area cone (5).
3, combined type cast iron heat exchanger according to claim 1 and 2, it is characterized in that being provided with in the apopore (12) of forehearth sheet (1) one does not have a jar heat exchanger (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223187 CN2298471Y (en) | 1997-06-03 | 1997-06-03 | Combined iron-casting heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97223187 CN2298471Y (en) | 1997-06-03 | 1997-06-03 | Combined iron-casting heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2298471Y true CN2298471Y (en) | 1998-11-25 |
Family
ID=33938002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97223187 Expired - Fee Related CN2298471Y (en) | 1997-06-03 | 1997-06-03 | Combined iron-casting heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2298471Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896741A (en) * | 2015-06-19 | 2015-09-09 | 山东前田热能技术有限公司 | Novel boiler gasket for cast iron condensing boiler |
-
1997
- 1997-06-03 CN CN 97223187 patent/CN2298471Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896741A (en) * | 2015-06-19 | 2015-09-09 | 山东前田热能技术有限公司 | Novel boiler gasket for cast iron condensing boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |