CN215524260U - Hybrid heat exchange device - Google Patents
Hybrid heat exchange device Download PDFInfo
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- CN215524260U CN215524260U CN202121389204.0U CN202121389204U CN215524260U CN 215524260 U CN215524260 U CN 215524260U CN 202121389204 U CN202121389204 U CN 202121389204U CN 215524260 U CN215524260 U CN 215524260U
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Abstract
The utility model provides a hybrid heat transfer device, relates to a heat exchanger, in order to further reduce heat exchanger area, saves and arranges the space, improves heat exchange efficiency. The two water chambers are oppositely arranged on the outer wall of the shell; the water chamber cooling water pipe is arranged in the middle of the shell, and two ends of the water chamber cooling water pipe are communicated with the water chamber; the nozzles are arranged on the peripheral outer surface of the water chamber cooling water pipe; the air inlet of the air pumping pipeline is arranged at the lower part of the water chamber cooling water pipe, the filtering device covers the air inlet of the air pumping pipeline, the air outlet of the air pumping pipeline extends to the outside of the shell, and the air outlet of the air pumping pipeline is provided with air pumping equipment; the baffle plate is arranged at the lower part of the air inlet of the air extraction pipeline; steam enters through the top of the shell and is exhausted through an air inlet of the air extraction pipeline; one end of the drain pipe is arranged at the bottom of the shell, and the other end of the drain pipe penetrates through the shell to be communicated with the outside. The heat exchanger has the beneficial effects of high heat exchange efficiency and reduced floor area of equipment.
Description
Technical Field
The present invention relates to a heat exchanger.
Background
The heat exchanger is a device for transferring partial heat of hot fluid to cold fluid, also called as heat exchanger, wherein the mixed heat exchanger is a heat exchange device for allowing cold and hot fluid to directly contact for heat transfer, and the heat exchange mode is not influenced by heat transfer partition walls and dirt thermal resistance at two sides of the heat transfer partition walls, has low heat transfer thermal resistance and high heat exchange efficiency, and is applied to an indirect air cooling system of a steam power station, namely a Haylor type air cooling system. The hybrid heat exchanger is an important corollary device in a Haylor type indirect air cooling system, and the structural form of the heat exchanger has great influence on the overall heat exchange efficiency and the occupied space size of the system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to further reduce the floor area of a heat exchanger, save the arrangement space and improve the heat exchange efficiency, and provides a hybrid heat exchange device.
The mixed heat exchange device comprises a water chamber cooling water pipe, a nozzle, an air extraction pipeline, a filtering device, a baffle plate, a drain pipe, a shell and two water chambers;
the two water chambers are oppositely arranged on the outer wall of the shell;
the water chamber cooling water pipe, the nozzle, the filtering device and the baffle plate are all arranged in the shell, wherein the water chamber cooling water pipe is arranged in the middle of the shell, and two ends of the water chamber cooling water pipe respectively penetrate through the shell to be communicated with the water chamber; the nozzles are arranged on the peripheral outer surface of the water chamber cooling water pipe;
the air inlet of the air pumping pipeline is arranged at the lower part of the water chamber cooling water pipe, the filtering device covers the air inlet of the air pumping pipeline, the air outlet of the air pumping pipeline extends to the outside of the shell, and the air outlet of the air pumping pipeline is provided with air pumping equipment;
the baffle plate is arranged at the lower part of the air inlet of the air extraction pipeline; steam enters through the top of the shell and is exhausted through an air inlet of the air extraction pipeline;
one end of the drain pipe is arranged at the bottom of the shell, and the other end of the drain pipe penetrates through the shell to be communicated with the outside.
The working principle of the utility model is as follows: steam enters from the upper part, cooling water enters the water chamber and then is sprayed out from the nozzle through the cooling water pipe of the water chamber to form a water curtain, the water curtain is in direct contact with the steam for heat exchange, the steam is condensed into water when meeting the condensation, the cooling water is heated to a saturated state, non-condensed gas in the water curtain escapes and is mixed with the non-condensed gas in the steam, the non-condensed steam and the non-condensed gas continue to flow to an air cooling area under the action of negative pressure, the non-condensed steam is subjected to heat exchange condensation with the cooling water sprayed out from the nozzle, the non-condensed gas and a small amount of steam are discharged from an air pumping pipeline, wherein the air cooling area consists of an air pumping pipeline air inlet, a filtering device and a baffle plate, and the cooling water after absorbing heat is discharged through a water discharge pipe.
The utility model has the beneficial effects that: the heat exchange device has no heat exchange tubes required by the surface heat exchanger, has simple structure, and the steam discharged by the low-pressure cylinder of the steam turbine directly contacts with cooling water for mixed cooling in the shell of the heat exchange device, so that the heat exchange efficiency is high, the deoxygenation effect is good, the heat transfer end difference is small, the space of the heat exchange device is fully utilized, and the occupied area of equipment can be reduced.
The hybrid heat exchange device is suitable for a Haylor type indirect air cooling system.
Drawings
Fig. 1 is a schematic structural view of a hybrid heat exchanger according to a first embodiment, wherein a cross section of a cooling water pipe of a water chamber is triangular;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a schematic structural view of a hybrid heat exchanger according to the fifth embodiment, wherein the cross section of the cooling water pipe of the water chamber is pentagonal;
FIG. 4 is a side view of FIG. 3;
fig. 5 is a schematic structural view of a hybrid heat exchanger according to a sixth embodiment, wherein a cross section of a cooling water pipe of a water chamber is triangular;
fig. 6 is a schematic structural view of a hybrid heat exchanger according to a sixth embodiment, wherein a cross section of a cooling water pipe of a water chamber is pentagonal.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 2, and a hybrid heat exchanger according to the embodiment includes a water chamber cooling water pipe 1, a nozzle 2, an air extraction pipe 3, a filtering device 4, a baffle plate 5, a drain pipe 7, a shell 8 and a water chamber 9;
the two water chambers 9 are oppositely arranged on the outer wall of the shell 8;
the water chamber cooling water pipe 1, the nozzle 2, the filtering device 4 and the baffle plate 5 are all arranged in the shell 8, wherein the water chamber cooling water pipe 1 is arranged in the middle of the shell 8, and two ends of the water chamber cooling water pipe 1 respectively penetrate through the shell 8 to be communicated with the water chamber 9; the nozzles 2 are arranged on the outer surfaces of the periphery of the water chamber cooling water pipe 1;
the air inlet of the air pumping pipeline 3 is arranged at the lower part of the water chamber cooling water pipe 1, the filtering device 4 covers the air inlet of the air pumping pipeline 3, the air outlet of the air pumping pipeline 3 extends to the outside of the shell 8, and the air outlet of the air pumping pipeline 3 is provided with air pumping equipment;
the baffle plate 5 is arranged at the lower part of the air inlet of the air extraction pipeline 3; steam enters through the top of the casing 8 and exits through the air inlet of the extraction duct 3;
one end of the drain pipe 7 is arranged at the bottom of the shell 8, and the other end of the drain pipe 7 penetrates through the shell 8 to be communicated with the outside.
In the embodiment, steam enters from the upper part of the shell 8, the nozzles 2 are arranged on the peripheral surface of the water chamber cooling water pipe 1, cooling water in the water chamber cooling water pipe 1 is sprayed out through the nozzles 2 on the wall surface under the action of pressure, and the sprayed cooling water forms a water curtain and directly contacts with the steam for heat exchange, so that the steam is condensed into water; as the steam flows downward, the steam volume is gradually reduced, so that a vacuum state is formed inside the housing 8; after absorbing heat, the cooling water reaches the saturation temperature under the steam pressure within a certain range, and the non-condensable gas contained in the cooling water escapes, is mixed with the non-condensable gas in the steam and flows to an air cooling area under the action of air extraction equipment; because the pressure of the air cooling area is lower than that of other areas in the shell 8, non-condensed gas contained in the cooling water further escapes, the non-condensed steam continuously exchanges heat with the cooling water sprayed by the nozzle 2, the non-condensed gas and a small part of non-condensed steam enter the air extracting pipe 3 and are extracted by air extracting equipment, and the cooling water absorbing heat is discharged through the drain pipe 7.
The second embodiment is as follows: in this embodiment, the hybrid heat exchanger according to the first embodiment is further limited, and in this embodiment, the heat exchanger further includes a baffle 6;
the deflector 6 is arranged obliquely on the inner wall of the housing 8.
In this embodiment, the baffle 6 further improves the heat exchange efficiency in order to increase the backflow effect.
The third concrete implementation mode: in this embodiment, the second embodiment is further limited to the hybrid heat exchanger described in the second embodiment, in this embodiment, the inclination angle of the baffle 6 is θ; and 0 DEG < theta < 90 deg.
In the present embodiment, θ is adjusted as necessary.
The fourth concrete implementation mode: in this embodiment, the hybrid heat exchanger according to the first embodiment is further limited, and in this embodiment, the cross section of the water chamber cooling water pipe 1 is triangular.
In this embodiment, the bottom surface of the water chamber cooling water pipe 1 is ensured to be on the horizontal plane, so that an air cooling area is convenient to form, uncondensed gas and a small part of steam can be discharged in time, and the heat exchange efficiency is increased.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 3 to 4, and the present embodiment is further limited to the hybrid heat exchanger according to the first embodiment, in which the cross section of the water chamber cooling water pipe 1 is an N-sided polygon, and N is an integer greater than 3.
In the present embodiment, as shown in fig. 3, N is equal to 5, and it is ensured that the bottom surface of the water chamber cooling water pipe 1 is on the horizontal plane, so that an air cooling zone is conveniently formed, and uncondensed gas and a small part of steam can be discharged in time, thereby increasing the efficiency of heat exchange.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 5 to 6, and the present embodiment is further limited to the hybrid heat exchanger according to the first, second, third, fourth or fifth embodiment, and in the present embodiment, the number of the water chamber cooling water tubes 1 is M, and M is an integer greater than 1.
In the present embodiment, as shown in fig. 5 or fig. 6, M is equal to 2; the water chamber cooling water pipes 1 are connected in parallel, so that the requirements of different heat exchange loads are met.
The seventh embodiment: in this embodiment, the hybrid heat exchanger according to the first embodiment is further limited, and in this embodiment, the filtering device 4 is a wire mesh demister.
The specific implementation mode is eight: in this embodiment, the hybrid heat exchanger according to the first embodiment is further limited, and in this embodiment, the filter device 4 is a dehumidification screen.
Claims (8)
1. The hybrid heat exchange device is characterized by comprising a water chamber cooling water pipe (1), a nozzle (2), an air extraction pipeline (3), a filtering device (4), a baffle plate (5), a drain pipe (7), a shell (8) and a water chamber (9);
the two water chambers (9) are oppositely arranged on the outer wall of the shell (8);
the water chamber cooling water pipe (1), the nozzle (2), the filtering device (4) and the baffle plate (5) are all arranged in the shell (8), wherein the water chamber cooling water pipe (1) is arranged in the middle of the shell (8), and two ends of the water chamber cooling water pipe (1) respectively penetrate through the shell (8) to be communicated with the water chamber (9); the nozzles (2) are arranged on the peripheral outer surface of the water chamber cooling water pipe (1);
an air inlet of the air pumping pipeline (3) is arranged at the lower part of the water chamber cooling water pipe (1), the filtering device (4) covers the air inlet of the air pumping pipeline (3), an air outlet of the air pumping pipeline (3) extends to the outside of the shell (8), and an air pumping device is arranged at the air outlet of the air pumping pipeline (3);
the baffle plate (5) is arranged at the lower part of the air inlet of the air extraction pipeline (3); the steam enters through the top of the casing (8) and is discharged through the air inlet of the air extraction duct (3);
one end of the drain pipe (7) is arranged at the bottom of the shell (8), and the other end of the drain pipe (7) penetrates through the shell (8) to be communicated with the outside.
2. A hybrid heat exchanger unit according to claim 1, further comprising a baffle (6);
the guide plate (6) is obliquely arranged on the inner wall of the shell (8).
3. A hybrid heat exchanger according to claim 2, characterized in that the angle of inclination of the baffle (6) is θ; and 0 DEG < theta < 90 deg.
4. A hybrid heat exchanger device according to claim 1, characterized in that the cross-section of the water chamber cooling water pipe (1) is triangular.
5. A hybrid heat exchanger device according to claim 1, characterized in that the cross-section of the water chamber cooling water pipe (1) is N-sided polygon, and N is an integer larger than 3.
6. A hybrid heat exchanger device according to claim 1, 2, 3, 4 or 5, characterized in that the number of said water chamber cooling water pipes (1) is M, and M is an integer greater than 1.
7. A hybrid heat exchanger according to claim 1, characterized in that the filter means (4) is a wire mesh demister.
8. A hybrid heat exchanger device according to claim 1, characterized in that the filter means (4) is a moisture removal screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121389204.0U CN215524260U (en) | 2021-06-22 | 2021-06-22 | Hybrid heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121389204.0U CN215524260U (en) | 2021-06-22 | 2021-06-22 | Hybrid heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215524260U true CN215524260U (en) | 2022-01-14 |
Family
ID=79809525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121389204.0U Active CN215524260U (en) | 2021-06-22 | 2021-06-22 | Hybrid heat exchange device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215524260U (en) |
-
2021
- 2021-06-22 CN CN202121389204.0U patent/CN215524260U/en active Active
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