CN217155071U - Heat exchange device for papermaking - Google Patents
Heat exchange device for papermaking Download PDFInfo
- Publication number
- CN217155071U CN217155071U CN202220241738.7U CN202220241738U CN217155071U CN 217155071 U CN217155071 U CN 217155071U CN 202220241738 U CN202220241738 U CN 202220241738U CN 217155071 U CN217155071 U CN 217155071U
- Authority
- CN
- China
- Prior art keywords
- gas
- heat exchanger
- inlet
- heat exchange
- outlet
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Paper (AREA)
Abstract
The utility model belongs to the technical field of heat exchange equipment, in particular to a heat exchange device for papermaking, which comprises a gas-gas heat exchanger, a second gas-liquid heat exchanger and a filter; the shell of the gas-gas heat exchanger is provided with a first gas inlet I, a first gas outlet I, a second gas inlet I, a second gas outlet I and a sight glass, and a lighting lamp, a heat exchange tube and a cleaning spray head are arranged inside the shell; the first second gas inlet and the first second gas outlet are connected through a heat exchange tube; the cleaning spray head is positioned above the heat exchange pipe and is connected with a cleaning liquid inlet pipe; the second gas-liquid heat exchanger is provided with a second cleaning liquid inlet, a second cleaning liquid outlet, a second gas inlet and a second gas outlet; the second gas outlet II is communicated with the first gas inlet I; the bottom of the gas-gas heat exchanger is sequentially connected with a filter and a second cleaning liquid inlet. The utility model discloses can judge the washing opportunity of gas-gas heat exchanger, the heat that waste heat and the washing liquid of make full use of high temperature vapor were taken away.
Description
Technical Field
The utility model belongs to the technical field of indirect heating equipment, concretely relates to heat exchange device for papermaking.
Background
High-temperature steam (the temperature of damp and hot air is about 80 ℃) exhausted by an exhaust system of the drying cylinder cover of the existing paper machine preheats hot air to be fed into a bag area of the paper machine through an air-air heat exchanger, so that the waste heat can be fully utilized, and the energy consumption is reduced. And the high-temperature steam discharged from the exhaust system has paper fluff and paper scraps, is easy to accumulate in the gas-gas heat exchanger, and reduces the heat exchange effect. The technical scheme that accumulated paper scraps are cleaned by a spraying system in a gas-gas heat exchanger to improve the heat exchange effect is provided, but the scheme cannot judge the cleaning time, if the cleaning is too frequent, too much heat can be taken away by cleaning liquid, the waste heat recovery is not facilitated, and if the cleaning frequency is too few, the paper scraps accumulation can be serious.
How to judge the cleaning time and utilize the residual heat brought by the high-temperature steam as much as possible becomes a difficult problem.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a heat exchange device for papermaking can judge gas-gas heat exchanger's washing opportunity to the heat that exhaust system exhaust's exhaust high temperature vapor and washing liquid of ability make full use of paper machine drying cylinder cover took away.
For solving the not enough of prior art, the utility model provides a technical scheme does:
a heat exchange device for papermaking comprises a gas-liquid heat exchanger, a second gas-liquid heat exchanger and a filter;
the shell of the gas-gas heat exchanger is provided with a first gas inlet, a first gas outlet, a first second gas inlet, a first second gas outlet and a sight glass, and a lighting lamp, a heat exchange tube and a cleaning spray head are arranged inside the shell; the first second gas inlet and the first second gas outlet are connected through the heat exchange tube; the cleaning spray head is positioned above the heat exchange tube and is connected with a cleaning liquid inlet tube;
the second gas-liquid heat exchanger is provided with a second cleaning liquid inlet, a second cleaning liquid outlet, a second gas inlet and a second gas outlet; the second gas outlet II is communicated with the first gas inlet I;
the bottom of the gas-gas heat exchanger is sequentially connected with a filter and a second cleaning solution inlet through a cleaning solution outlet pipe.
Preferably, the system further comprises a first gas-liquid heat exchanger; the first gas-liquid heat exchanger is provided with a first gas inlet II, a first gas outlet II, a cleaning liquid inlet I and a cleaning liquid outlet I;
the first gas outlet is connected with the second gas inlet;
the cleaning liquid inlet is connected with a cleaning liquid storage tank;
and the first cleaning liquid outlet is connected with the cleaning spray head through the first cleaning liquid inlet pipe.
Preferably, said first gas inlet is located at a lower portion of said gas-gas heat exchanger; the first gas outlet is positioned at the upper part of the gas-gas heat exchanger; the heat exchange tube is annular.
Preferably, the sight glass is positioned at the middle lower part of the air-air heat exchanger.
Preferably, the illuminating lamp is fixedly connected with the inner wall of the shell of the gas-gas heat exchanger and is connected with a power supply through an electric wire penetrating through the shell of the gas-gas heat exchanger, the height of the illuminating lamp is lower than that of the heat exchange tube, and light rays of the illuminating lamp are emitted to the top of the gas-gas heat exchanger.
Preferably, the device further comprises a first thermometer; the first thermometer is used for measuring the temperature at one position of the first gas outlet.
Preferably, a second thermometer is also included; the second thermometer is used for measuring the temperature at one position of the second gas outlet.
Preferably, a pump is arranged on a cleaning liquid outlet pipe connected with the filter and the cleaning liquid inlet II.
Preferably, the cleaning liquid outlet pipe is further connected with a sewage discharge pipeline, and a sewage discharge valve is arranged on the sewage discharge pipeline.
Preferably, the cleaning liquid outlet pipe is provided with a first stop valve and a second stop valve; the first stop valve is positioned at the inlet end of the filter; the second shut-off valve is located at the outlet end of the filter.
The utility model has the advantages that:
1) the utility model discloses a gas-gas heat exchanger is provided with a sight glass and a lighting lamp, when in use, the lighting lamp is turned on, and the sight glass is used for judging whether the paper scraps are accumulated on the outer surface of the heat exchange tube and the inner wall of the shell or not and judging whether the cleaning process is finished or not; the cleaning solution preheats cold air in the second gas-liquid heat exchanger, recovers heat taken away by the cleaning solution from the gas-liquid heat exchanger, and fully utilizes energy;
2) the cleaning liquid can be preheated by the first gas-liquid heat exchanger through the waste heat of the high-temperature vapor discharged from the gas-liquid heat exchanger, so that the energy is further utilized;
3) the utility model discloses a first thermometer and second thermometer can judge gas-gas heat exchanger's heat exchange efficiency, combine with sight glass and light, synthesize the condition of judging wastepaper pile up.
Drawings
FIG. 1 is a heat exchange device for papermaking according to the present invention;
wherein, 1 is a gas-gas heat exchanger; 2 is a first gas-liquid heat exchanger; a second gas-liquid heat exchanger 3; 4 is a first gas inlet I; 5 is a first gas outlet I; 6 is a first second gas inlet; 7 is a first second gas outlet; 8 is a sight glass; 9 is a lighting lamp; 10 is a filter; 11 is a pump; 12 is a first thermometer; 13 is a second thermometer; 14 is a blow-down valve; 15 is a first stop valve; 16 is a second stop valve; and 17 is a cleaning spray head.
Detailed Description
The present invention will be further described with reference to the following embodiments. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
An embodiment of the utility model provides a paper grade (stock) heat exchange device, see fig. 1, including gas-gas heat exchanger 1, second gas-liquid heat exchanger 3 and filter 10. Specifically, a shell of the gas-gas heat exchanger 1 is provided with a first gas inlet I4, a first gas outlet I5, a second gas inlet I6, a second gas outlet I7 and a sight glass 8, and a lighting lamp 9, a heat exchange tube and a cleaning nozzle 17 are arranged inside the shell; the first second gas inlet 6 and the first second gas outlet 7 are connected through a heat exchange tube; the cleaning spray head 17 is positioned above the heat exchange pipe, and the cleaning spray head 17 is connected with a cleaning liquid inlet pipe. The second gas-liquid heat exchanger 3 is provided with a second cleaning liquid inlet, a second cleaning liquid outlet, a second gas inlet and a second gas outlet; the second gas outlet II is communicated with the first gas inlet 6; the bottom of the gas-gas heat exchanger 1 is sequentially connected with a filter 10 and a cleaning liquid inlet II through a cleaning liquid outlet pipe. The two ends of the filter are connected with the cleaning liquid outlet pipe through flanges.
The utility model discloses in, the exhaust system exhaust high temperature vapor of paper machine drying cylinder cover gets into gas heat exchanger's casing from first gas inlet, and the cold air of waiting to heat gets into the heat exchange tube in the gas heat exchanger from the second gas inlet, and the back is accomplished in the heat exchange, and high temperature vapor is discharged from first gas outlet, and the cold air after heating is discharged from the second gas outlet and gets into follow-up technology. The gas-gas heat exchanger is provided with a sight glass and a lighting lamp, when the gas-gas heat exchanger is used, the lighting lamp is turned on, whether paper scraps are accumulated on the outer surface of the heat exchange tube and the inner wall of the shell or not is judged through the sight glass, and whether the cleaning process is finished or not is judged. When the cleaning agent is needed to be cleaned, the cleaning agent is introduced, the gas-gas heat exchanger is cleaned through the cleaning nozzle, the cleaning agent is collected at the bottom of the gas-gas heat exchanger, flows into the cleaning agent outlet pipe, is filtered by the filter and then enters the second gas-liquid heat exchanger, the cleaning agent preheats cold air in the second gas-liquid heat exchanger, heat taken away by the cleaning agent from the gas-gas heat exchanger is recovered, and energy is fully utilized.
In an optional embodiment of the present invention, the heat exchange device for papermaking further comprises a first gas-liquid heat exchanger 2; the first gas-liquid heat exchanger 2 is provided with a first gas inlet II, a first gas outlet II, a cleaning liquid inlet I and a cleaning liquid outlet I; the first gas outlet I5 is connected with the second gas inlet II; the cleaning liquid inlet is connected with a cleaning liquid storage tank; the first cleaning liquid outlet is connected with the cleaning spray head 17 through a cleaning liquid inlet pipe. The first gas-liquid heat exchanger can preheat the cleaning liquid by utilizing the waste heat of high-temperature steam discharged from the gas-liquid heat exchanger, so that energy is further utilized. A pump or a valve can be designed on the cleaning liquid inlet pipe according to the requirement to adjust the flow of the cleaning liquid.
In an alternative embodiment of the present invention, the first gas inlet one 4 is located at the lower part of the gas-gas heat exchanger 1; the first gas outlet I5 is positioned at the upper part of the gas-gas heat exchanger 1; the heat exchange tube is annular in shape. The sight glass 8 is positioned at the middle lower part of the air-air heat exchanger. The light 9 is fixedly connected with the inner wall of the shell of the gas-gas heat exchanger 1 and is connected with a power supply through an electric wire penetrating through the shell of the gas-gas heat exchanger, the height of the light 9 is lower than that of the heat exchange tube, and light rays of the light irradiate to the top of the gas-gas heat exchanger 1. When high-temperature steam is led in from the bottom of the gas-gas heat exchanger, paper scraps are easy to deposit on the lower part of the heat exchange tube, and the illuminating lamp and the sight glass are arranged at the bottom of the gas-gas heat exchanger, so that the accumulation condition of the paper scraps is convenient to observe.
In an optional embodiment of the present invention, the heat exchange device for papermaking further comprises a first thermometer 12 and a second thermometer 13, the first thermometer 12 is used for measuring the temperature of the first gas outlet 5, and the second thermometer 13 is used for measuring the temperature of the second gas outlet 7. Can judge gas heat exchanger's heat exchange efficiency through first thermometer and second thermometer, when the temperature that first thermometer detected is higher than the exit temperature mean value of high temperature vapor, the temperature that the second thermometer detected is less than the exit temperature mean value of cold air, explains gas heat exchanger's heat exchange efficiency and reduces, and accessible sight glass and light judge the wastepaper and pile up the condition.
In an optional embodiment of the present invention, a pump 11 is disposed on the cleaning solution outlet pipe connected to the filter 10 and the cleaning solution inlet two.
In an optional embodiment of the present invention, the cleaning liquid outlet pipe is further connected to a sewage draining pipeline, and the sewage draining pipeline is provided with a sewage draining valve 14.
In an optional embodiment of the present invention, the cleaning liquid outlet pipe is provided with a first stop valve 15 and a second stop valve 16; a first shut-off valve 15 is located at the inlet end of the filter 10; a second shut-off valve 16 is located at the outlet end of the filter 10. The first stop valve and the second stop valve are closed, and the filter can be detached for cleaning.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (10)
1. A heat exchange device for papermaking is characterized by comprising a gas-gas heat exchanger, a second gas-liquid heat exchanger and a filter;
the shell of the gas-gas heat exchanger is provided with a first gas inlet, a first gas outlet, a first second gas inlet, a first second gas outlet and a sight glass, and a lighting lamp, a heat exchange tube and a cleaning spray head are arranged inside the shell; the first second gas inlet and the first second gas outlet are connected through the heat exchange tube; the cleaning spray head is positioned above the heat exchange tube and is connected with a cleaning liquid inlet tube;
the second gas-liquid heat exchanger is provided with a second cleaning liquid inlet, a second cleaning liquid outlet, a second gas inlet and a second gas outlet; the second gas outlet II is communicated with the first gas inlet I;
the bottom of the gas-gas heat exchanger is sequentially connected with a filter and a second cleaning solution inlet through a cleaning solution outlet pipe.
2. The heat exchange device for papermaking according to claim 1, further comprising a first gas-liquid heat exchanger; the first gas-liquid heat exchanger is provided with a first gas inlet II, a first gas outlet II, a cleaning liquid inlet I and a cleaning liquid outlet I;
the first gas outlet is connected with the second gas inlet;
the cleaning liquid inlet is connected with a cleaning liquid storage tank;
and the first cleaning liquid outlet is connected with the cleaning spray head through the first cleaning liquid inlet pipe.
3. A heat exchanger apparatus for papermaking according to claim 1, wherein said first gas inlet is located at a lower portion of said gas-gas heat exchanger; the first gas outlet is positioned at the upper part of the gas-gas heat exchanger; the heat exchange tube is annular.
4. The heat exchanger apparatus for papermaking as set forth in claim 3, wherein the sight glass is located at a middle lower portion of the air-to-air heat exchanger.
5. The heat exchange device for papermaking as claimed in claim 3, wherein the lamp is fixedly connected to the inner wall of the housing of the gas-gas heat exchanger and connected to a power source through a wire passing through the housing of the gas-gas heat exchanger, the lamp is lower than the heat exchange tube, and the light from the lamp is directed to the top of the gas-gas heat exchanger.
6. The heat exchange device for papermaking as set forth in claim 1, further comprising a first thermometer; the first thermometer is used for measuring the temperature at one position of the first gas outlet.
7. The heat exchange device for papermaking as set forth in claim 1, further comprising a second thermometer; the second thermometer is used for measuring the temperature at one position of the second gas outlet.
8. The heat exchange device for papermaking as claimed in claim 1, wherein a pump is provided on a washing liquid outlet pipe connecting the filter and the second washing liquid inlet.
9. The heat exchange device for papermaking according to claim 1, wherein the cleaning solution outlet pipe is further connected with a blowdown pipeline, and a blowdown valve is arranged on the blowdown pipeline.
10. The heat exchange device for papermaking as claimed in claim 1, wherein the cleaning solution outlet pipe is provided with a first stop valve and a second stop valve; the first stop valve is positioned at the inlet end of the filter; the second shut-off valve is located at the outlet end of the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241738.7U CN217155071U (en) | 2022-01-29 | 2022-01-29 | Heat exchange device for papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241738.7U CN217155071U (en) | 2022-01-29 | 2022-01-29 | Heat exchange device for papermaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217155071U true CN217155071U (en) | 2022-08-09 |
Family
ID=82690060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220241738.7U Active CN217155071U (en) | 2022-01-29 | 2022-01-29 | Heat exchange device for papermaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217155071U (en) |
-
2022
- 2022-01-29 CN CN202220241738.7U patent/CN217155071U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102183007A (en) | Waste heat recovering system of boiler | |
| CN202012904U (en) | Boiler waste heat recovery system | |
| CN217155071U (en) | Heat exchange device for papermaking | |
| CN205382137U (en) | Double -boiler stove coarse coal gas cooling dust collector | |
| CN209325737U (en) | Sulfur recovery waste heat boiler | |
| CN205995246U (en) | Drying waste gas recycling equipment | |
| CN209371218U (en) | A kind of boiler is even fixed to arrange receipts energy system | |
| CN209026805U (en) | A kind of flue gas heat recovery system that combustion gas generates | |
| CN206996605U (en) | A kind of low-pressure methanol synthesis tower | |
| CN220624013U (en) | Boiler afterbody flue gas waste heat recovery utilizes system based on wet flue gas desulfurization | |
| CN209991477U (en) | Waste heat utilization device of biomass gas making boiler | |
| CN208764949U (en) | A kind of high temperature flue-gas from boiler waste-heat recovery device | |
| CN108800095A (en) | A kind of boiler platoon waste water residual heat utilizes system and method | |
| CN220853024U (en) | Raw material drying system for producing fish meal | |
| RU158929U1 (en) | SURFACE HEAT EXCHANGER | |
| CN214009200U (en) | Boiler blowdown waste heat utilization system | |
| CN206929798U (en) | A kind of plate-fin casting air preheater | |
| CN215216180U (en) | Weaving workshop boiler return water cyclic utilization system | |
| CN108980815A (en) | A kind of flue gas heat recovery system and method that combustion gas generates | |
| CN221238191U (en) | Steam condensate water recycling system | |
| CN219347429U (en) | Steam energy-saving system of washing plant | |
| CN214064888U (en) | Energy-saving deaerator for boiler | |
| CN208780003U (en) | Anhydrous weaving bobbin-winding machine heat reclaim unit | |
| CN210921357U (en) | Recovery unit of comdenstion water that sulphur melting process produced | |
| CN210462965U (en) | Heat conduction oil furnace waste heat collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |