CN210602934U - Ammonia water heat exchanger - Google Patents
Ammonia water heat exchanger Download PDFInfo
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- CN210602934U CN210602934U CN201920905007.6U CN201920905007U CN210602934U CN 210602934 U CN210602934 U CN 210602934U CN 201920905007 U CN201920905007 U CN 201920905007U CN 210602934 U CN210602934 U CN 210602934U
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- capillary core
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Abstract
The utility model relates to an aqueous ammonia heat exchanger, including casing and capillary core, the inside cavity of casing, the capillary core level sets up in the casing and the upper end laminating of lower extreme and casing diapire, the edge of capillary core is connected in order to form the stock solution room with the inside wall of casing, be equipped with the aqueous ammonia import and the aqueous ammonia export with the stock solution room intercommunication on the left and right sides wall of casing respectively, the lower extreme of capillary core is equipped with rich ammonia vapor channel, be equipped with the rich ammonia vapor outlet with rich ammonia vapor channel intercommunication on the casing lateral wall, rich ammonia vapor outlet is located the below of aqueous ammonia export, the casing sets up in the magnetic field along the fore-and-aft direction, so that the ammonia ion in the stock solution room deflects to the capillary core under the magnetic field effect. Under the action of a magnetic field, charged ions in the ammonia water working medium deflect, so that the diffusion speed of the charged ions is improved, the ammonia ions in the liquid storage chamber deflect to the capillary core, and the dilute ammonia solution left in the liquid storage chamber is discharged from an ammonia water outlet.
Description
Technical Field
The utility model relates to a heat exchanger technical field, concretely relates to aqueous ammonia heat exchanger.
Background
The ammonia water power cycle power generation technology uses an ammonia water mixture as a working medium, is suitable for a medium-low temperature power generation technology of a heat source of 85-350 ℃, is the most glancing medium-low temperature waste heat power generation technology at present, is suitable for medium-low temperature waste heat resources generated in the industrial fields of steel, color, building materials, petrifaction and the like, and is also suitable for the fields of renewable energy sources such as geothermal energy, solar energy and the like. The phase change process of the ammonia water is a temperature change process, so that the irreversible loss of heat transfer in the evaporation and condensation processes is reduced, the power cycle of the ammonia water is closer to the ideal Lorentz cycle, the thermal efficiency of the power cycle of the ammonia water is higher than that of the power cycle of a single working medium by more than 15%, the power cycle structure of the ammonia water is complex, the ammonia water is heated, and then ammonia-rich steam is generated through a gas-liquid separator.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ammonia water heat exchanger that heat exchange efficiency is high for solving above-mentioned technical problem.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an aqueous ammonia heat exchanger, includes casing and capillary core, capillary core level sets up in the casing and its lower extreme with the upper end laminating of casing diapire, the edge of capillary core with the inside wall of casing is connected in order to form the stock solution room, be equipped with respectively on the left and right sides wall of casing with the aqueous ammonia import and the aqueous ammonia export of stock solution room intercommunication, the lower extreme of capillary core is equipped with rich ammonia vapor channel, be equipped with on the lateral wall of casing with the rich ammonia vapor outlet of rich ammonia vapor channel intercommunication, just rich ammonia vapor outlet is located the below of aqueous ammonia export, the casing sets up in the magnetic field along the fore-and-aft direction, so that the ammonia ion in the stock solution room 11 is in under the magnetic field effect to the capillary core deflects.
The utility model has the advantages that: the utility model discloses an aqueous ammonia heat exchanger advances aqueous ammonia working medium gas-liquid double-phase through capillary coreIsolated, the ammonia in the liquid storage chamber has NH4 +、OH-The plasma charged ions deflect under the action of the magnetic field, so that the mutual migration of various ions of the ammonia water is promoted, the diffusion speed of the ions is improved, the migration of the ammonia ions in the liquid storage chamber to the capillary core is ensured, and the dilute ammonia solution left in the liquid storage chamber is discharged from an ammonia water outlet.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the ammonia water heat exchanger still includes the lower casing, the inside cavity of lower casing and upper end opening, the upper end opening part of lower casing with the lower extreme of casing diapire is connected, so that the inside of lower casing forms heat source fluid passage, the left and right ends of lower casing be equipped with respectively with heat source fluid inlet and the heat source fluid export of heat source fluid passage intercommunication.
The heat source fluid directly flows in the heat source fluid channel to superheat the ammonia-rich vapor.
Further, the heat source fluid inlet is positioned below the ammonia water outlet, and the heat source fluid outlet is positioned below the ammonia water inlet.
The beneficial effect of adopting the further scheme is that the ammonia-rich steam can be ensured to have more stable superheat degree.
Optionally, the front and rear side walls of the housing are made of a magnetic material, the magnetic poles on the opposite side of the front and rear side walls of the housing are an N pole and an S pole, respectively, and the magnetic field is formed between the front and rear side walls of the housing.
The beneficial effect who adopts above-mentioned further scheme is simple structure to make the magnetic field on the aqueous ammonia superheater more stable.
Further, the magnetic material is a permanent magnet.
Further, the ammonia-rich vapor channel comprises a plurality of first channels arranged along the front-rear direction and at least one second channel arranged along the left-right direction, the first channels and the second channels are communicated, and the second channels are communicated with the ammonia-rich vapor outlet.
The beneficial effects of adopting above-mentioned further scheme are that produce certain disturbance to rich ammonia steam air current, make the air current be heated more evenly to increased heat transfer area, made the air current temperature higher, guaranteed that rich ammonia steam has more stable superheat degree.
Further, the ammonia water inlet, the ammonia water outlet and the ammonia-rich vapor outlet are all provided in a plurality.
Drawings
Fig. 1 is a cross-sectional view of an ammonia-water heat exchanger according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1 according to the present invention;
fig. 3 is a side view of the present invention taken along direction M of fig. 1;
fig. 4 is a side view along the direction N of fig. 1 according to the present invention;
figure 5 is a cross-sectional view of an ammonia-water heat exchanger according to embodiment 2 of the present invention;
fig. 6 is a cross-sectional view taken along a-a of fig. 5 according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
10. the device comprises a shell, 11, a liquid storage chamber, 12, an ammonia water inlet, 13, an ammonia water outlet, 14, an N-stage side wall, 15, an S-stage side wall, 20, a capillary core, 30, a heat exchange wall surface, 41, an ammonia-rich vapor outlet, 42, a first channel, 43, a second channel, 50, a lower shell, 51, a heat source fluid channel, 52, a heat source fluid inlet, 53 and a heat source fluid outlet.
Detailed Description
The principles and features of the present invention will be described with reference to the drawings and the embodiments, which are provided for illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 4, the present embodiment provides an ammonia water heat exchanger, including a housing 10 and a capillary core 20; the inside cavity that is cuboid or approximate cuboid that is of casing 10, the diapire of casing 10 is heat transfer wall 30, capillary 20 level sets up in the casing 10 on the heat transfer wall 30 and its lower extreme with the laminating of the upper end of heat transfer wall 30, the edge of capillary 20 with the inside wall of casing 10 is connected in order to form the stock solution room 11 that is used for storing the aqueous ammonia, be equipped with respectively on the left and right sides wall of casing 10 with aqueous ammonia import 12 and aqueous ammonia export 13 of stock solution room 11 intercommunication, be equipped with rich ammonia steam channel on the capillary 20 lower extreme with the one side of heat transfer wall 30 laminating, be equipped with on the lateral wall of casing 10 with rich ammonia steam export 41 of rich ammonia steam channel intercommunication, discharge rich ammonia steam, and rich ammonia steam export 41 is located the below aqueous ammonia export 13, casing 10 sets up in the magnetic field along the fore-and-aft direction, so that the ammonia ions in the liquid storage chamber 11 are deflected towards the capillary wick 20 under the action of the magnetic field.
Ammonia water working medium enters the liquid storage chamber 11 from an ammonia water inlet 12, the capillary core 20 enables the ammonia water working medium to fill the whole capillary core 20 through capillary force, a heat source transfers heat to the capillary core 20 through the heat exchange wall surface 30, as the boiling point of ammonia in the ammonia water is lower than that of water, ammonia components in the capillary core 20 are firstly evaporated into ammonia-rich steam, the ammonia-rich steam is discharged from an ammonia-rich steam outlet 41 through an ammonia-rich steam channel, and ammonia in the liquid storage chamber 11 carries NH4 +、OH-The plasma charged ions are deflected under the action of the magnetic field, so that the mutual migration of various ions of the ammonia water is promoted, the diffusion speed of the ions is increased, the ammonia ions in the liquid storage chamber 11 are deflected to the capillary core 20, and the dilute ammonia solution left in the liquid storage chamber 11 is discharged from the ammonia water outlet 13. Due to the blocking effect of the capillary core 20, the temperature of the working medium in the liquid storage chamber 11 is always lower, so that the temperature of the dilute ammonia solution discharged from the ammonia water outlet 13 is lower, excessive heat cannot be taken away, and the heat utilization rate of a heat source is improved.
In a preferred embodiment, the front and rear side walls of the housing 10 are made of magnetic materials, and the magnetic poles on the opposite side of the front and rear side walls of the housing 10 are an S pole and an N pole, respectively, that is, one side wall is an N-stage side wall 14, and the other side wall is an S-stage side wall 15, the arrangement of the magnetic poles on the front and rear side walls is related to the flow direction of the ammonia water working medium to ensure that ammonia ions move toward the capillary core 20, and if the ammonia water inlet 12 is arranged on the left side wall, the front side wall is the S pole, and the rear side wall is the N pole. The magnetic field is formed between the N-stage side wall and the S-stage side wall, the magnetic material is a permanent magnet, and the upper wall and the left and right side walls of the casing 10 are made of non-magnetic metal materials, such as stainless steel, aluminum alloy or titanium alloy. The front and rear side walls made of magnetic material can provide a stable magnetic field. Preferably, the strength of the magnetic field is set according to the following formula:
B＝mv/(Hq)
wherein B is the magnetic field intensity, m is NH4 +V is the average velocity of the aqueous ammonia liquid in the reservoir, H is the height of the reservoir (i.e. the distance of the capillary wick from the upper wall of the reservoir), q is NH4 +The amount of charge of (1).
NH4 +Has a mass of 2.99X 10-26kg, charge amount of 1.6X 10-19C, assuming that the average speed of the ammonia water is 0.1m/s and the height of the liquid reservoir is 0.1m, the magnetic field strength is calculated to be 0.1869 mT.
The distance between the N-pole side wall and the S-pole side wall is set according to the calculated magnetic field intensity.
Preferably, the ammonia-rich vapor channel includes a plurality of first channels 42 arranged in the front-rear direction and at least one second channel 43 arranged in the left-right direction, the first channels 42 and the second channels 43 are communicated, and the second channels 43 are communicated with the ammonia-rich vapor outlet 41. Certain disturbance effect is generated on the ammonia-rich vapor airflow, so that the airflow is heated more uniformly, the heat exchange area is increased, the temperature of the airflow is higher, and the ammonia-rich vapor is guaranteed to have more stable superheat degree.
Preferably, the ammonia water inlets 12, the ammonia water outlets 13 and the rich ammonia vapor outlets 41 are all provided in a plurality, and a plurality of the ammonia water inlets 12, a plurality of the ammonia water outlets 13 and a plurality of the rich ammonia vapor outlets 41 are all distributed in a horizontal equidistant manner.
Example 2
The ammonia water heat exchanger may be directly attached to a heat source of a heat generating device, or a heat source fluid channel 51 may be provided on the ammonia water heat exchanger to overheat ammonia-rich vapor, as shown in fig. 5 to 6, which is different from embodiment 1, the ammonia water heat exchanger further includes a lower housing 50, the lower housing 50 is hollow and has an upper end opening, the upper end opening of the lower housing 50 is connected to a lower end of the heat exchange wall surface 30, so that the heat source fluid channel 51 is formed inside the lower housing 50, and a heat source fluid inlet 52 and a heat source fluid outlet 53, which are communicated with the heat source fluid channel 51, are respectively provided at left and right ends of the lower housing 50. The heat source fluid flows directly in the heat source fluid passage 51, superheating the ammonia-rich vapor. The ammonia water working medium and the heat source fluid can enter the heat exchanger from the same side of the ammonia water heat exchanger, and can also enter from two sides respectively, as a preferred scheme, the ammonia water working medium and the heat source fluid enter from two sides of the heat exchanger respectively, namely the heat source fluid inlet 52 is positioned below the ammonia water outlet 13, and the heat source fluid outlet 53 is positioned below the ammonia water inlet 12, so that more stable superheat degree of ammonia-rich vapor can be ensured.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. An ammonia water heat exchanger is characterized by comprising a shell (10) and a capillary core (20);
the shell (10) is hollow inside;
the capillary core (20) is horizontally arranged in the shell (10), the lower end of the capillary core is attached to the upper end of the bottom wall of the shell (10), the edge of the capillary core (20) is connected with the inner side wall of the shell (10) to form a liquid storage chamber (11), an ammonia water inlet (12) and an ammonia water outlet (13) which are communicated with the liquid storage chamber (11) are respectively arranged on the left side wall and the right side wall of the shell (10), an ammonia-rich vapor channel is arranged at the lower end of the capillary core (20), an ammonia-rich vapor outlet (41) which is communicated with the ammonia-rich vapor channel is arranged on the side wall of the shell (10), and the ammonia-rich vapor outlet (41) is positioned below the ammonia water outlet (13);
the shell (10) is arranged in a magnetic field along the front-back direction, so that ammonia ions in the liquid storage chamber (11) are deflected to the capillary core (20) under the action of the magnetic field.
2. An ammonia-water heat exchanger according to claim 1, further comprising a lower shell (50), wherein the lower shell (50) is hollow and has an open upper end, the open upper end of the lower shell (50) is connected with the lower end of the bottom wall of the shell (10) so that a heat source fluid channel (51) is formed in the lower shell (50), and the left and right ends of the lower shell (50) are respectively provided with a heat source fluid inlet (52) and a heat source fluid outlet (53) which are communicated with the heat source fluid channel (51).
3. An ammonia-water heat exchanger according to claim 2, characterized in that the heat source fluid inlet (52) is located below the ammonia-water outlet (13), and the heat source fluid outlet (53) is located below the ammonia-water inlet (12).
4. An ammonia-water heat exchanger according to any one of claims 1-3, characterized in that the front and rear side walls of the housing (10) are made of magnetic material, and the magnetic poles on the opposite side of the front and rear side walls of the housing (10) are S pole and N pole, respectively, and the magnetic field is formed between the front and rear side walls of the housing (10).
5. An ammonia-water heat exchanger according to claim 4, characterized in that the magnetic material is a permanent magnet.
6. An ammonia-water heat exchanger according to claim 1 or 2, wherein the ammonia-rich vapor channel comprises a plurality of first channels (42) arranged in the front-rear direction and at least one second channel (43) arranged in the left-right direction, the first channels (42) and the second channels (43) are communicated, and the second channels (43) are communicated with the ammonia-rich vapor outlet (41).
7. An ammonia-water heat exchanger according to claim 1 or 2, wherein the ammonia-water inlet (12), the ammonia-water outlet (13) and the ammonia-rich vapor outlet (41) are provided in plurality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920905007.6U CN210602934U (en) | 2019-06-14 | 2019-06-14 | Ammonia water heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920905007.6U CN210602934U (en) | 2019-06-14 | 2019-06-14 | Ammonia water heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602934U true CN210602934U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920905007.6U Active CN210602934U (en) | 2019-06-14 | 2019-06-14 | Ammonia water heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602934U (en) |
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2019
- 2019-06-14 CN CN201920905007.6U patent/CN210602934U/en active Active
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