CN213453934U - Countercurrent heat exchanger - Google Patents
Countercurrent heat exchanger Download PDFInfo
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- CN213453934U CN213453934U CN202022668527.5U CN202022668527U CN213453934U CN 213453934 U CN213453934 U CN 213453934U CN 202022668527 U CN202022668527 U CN 202022668527U CN 213453934 U CN213453934 U CN 213453934U
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- heat exchange
- exchanger shell
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Abstract
The utility model provides a counter-current heat exchanger, including the heat exchanger shell, be equipped with fixing base, heat transfer fin, distributive pipe, collector pipe, heat transfer copper pipe and sterilizing equipment in the heat exchanger shell, heat transfer fin with wall connection in the heat exchanger shell, heat transfer copper pipe one end runs through the heat exchanger shell extend to the external world and with the distributive pipe intercommunication, the heat transfer copper pipe other end runs through the heat exchanger shell extend to the external world and with the collector pipe intercommunication, the heat transfer fin cover is established on the heat transfer copper pipe, the heat transfer copper pipe is the zigzag, be connected with the refrigerated water outlet pipe on the collector pipe, be connected with the refrigerated water oral siphon on the distributive pipe, the fixing base with bottom rigid coupling in the heat exchanger shell. The utility model discloses can effectively increase the heat exchange efficiency of heat exchanger, the energy saving, and can conveniently install and change sterilizing equipment.
Description
Technical Field
The utility model relates to a fan coil technical field, concretely relates to heat exchanger against current.
Background
More and more air conditioning equipment currently serves people's working and living environments. However, the wide use of air conditioning equipment causes huge energy consumption, and people look forward to design and produce efficient and energy-saving products so as to adapt to the sustainable development of economic construction in China.
The fan coil in the existing central air-conditioning system adopts cross-flow heat exchange, the structure dominates the design idea in the industry for many years, the product with the structure is produced and used by people habitually, the improvement of the comprehensive performance of the heat exchange device by adopting a new structural design is not considered, but the traditional heat exchange device is not suitable for the development of forms in the current stream of paying attention to the reduction of energy consumption, the protection of the environment and the implementation of sustainable development all over the world.
The traditional fan coil of the central air-conditioning system has the following defects:
1. due to the structural limitation, the reasonable value of the outlet air temperature of the refrigerating system is higher than the outlet water temperature of the chilled water, so that the heat exchange efficiency of the refrigerating system is low, and the energy consumption is high;
2. the disinfection and sterilization device is generally used for disinfection and sterilization in the heat exchanger on the market, but the installation and replacement of the disinfection and sterilization device are troublesome.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, the utility model aims at providing a heat exchanger against current, for solving above-mentioned technical problem, the utility model discloses a following technical scheme realizes:
a counter-current heat exchanger comprises a heat exchanger shell, wherein a fixing seat, heat exchange fins, a water distribution pipe, a water collection pipe, a heat exchange copper pipe and a sterilization device are arranged in the heat exchanger shell, the heat exchange fins are connected with the inner wall of the heat exchanger shell, one end of the heat exchange copper pipe penetrates through the heat exchanger shell to extend to the outside and is communicated with the water distribution pipe, the other end of the heat exchange copper pipe penetrates through the heat exchanger shell to extend to the outside and is communicated with the water collection pipe, the heat exchange fins are sleeved on the heat exchange copper pipe, the heat exchange copper pipe is Z-shaped, a chilled water outlet pipe is connected to the water collection pipe, and a chilled water inlet pipe;
the fixed seat is fixedly connected with the bottom in the heat exchanger shell, a first groove is formed in the upper surface of the fixed seat, a second groove is formed in the side wall of the first groove, a first through hole communicated with the upper surface of the fixed seat is formed in the side wall of the second groove, a sliding block is connected in the first groove in a sliding mode, and an inclined second through hole is formed in the sliding block;
the upper surface of the fixing seat is provided with a key mechanism, the key mechanism comprises an elastic piece, a pressing piece, a first connecting strip and a second connecting strip, the lower surface of the pressing piece is fixedly connected with the upper surface of the fixing seat through the elastic piece, the upper end of the second connecting strip is fixedly connected with the lower surface of the pressing piece, the lower end of the second connecting strip enters the first through hole and the upper end of the first connecting strip is obliquely and fixedly connected, and the first connecting strip is inserted into the second through hole.
Advantageously, the chilled water inlet pipe is vertically lower than the chilled water outlet pipe.
Advantageously, the knock out pipe and the catch pipe are provided in the same side wall of the heat exchanger housing.
Advantageously, the heat exchange fin is provided in plurality, and the plurality of heat exchange fins are arranged in a spaced manner.
Advantageously, the sterilisation apparatus is a nano-photocatalyst steriliser.
The utility model discloses it does to have following beneficial effect:
1. the inside of the countercurrent heat exchanger can be conveniently disinfected and sterilized by a sterilization device;
2. the sterilization device can be conveniently fixed and released through the elastic piece, the sliding block, the first connecting strip, the second connecting strip, the pressing piece and the inclined second through hole;
3. through the heat transfer copper pipe of design zigzag, the wind that heat transfer copper pipe and fan blown out is parallel to each other, and refrigerated water flow direction is opposite with the wind direction, obviously increases heat exchange efficiency, the energy saving.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a front view of the present invention;
fig. 2 is a schematic structural diagram of the present invention and a blower;
fig. 3 is a side view of the present invention;
fig. 4 is a schematic structural view of the fixing base of the present invention.
Reference numerals: fan 1, air outlet 2, fixing base 3, elastic component 31, first recess 32, second recess 33, first through-hole 34, sliding block 35, second through-hole 36, first connecting strip 37, second connecting strip 38, pressing piece 39, heat transfer fin 4, distributive pipe 5, refrigerated water oral siphon 51, collector pipe 6, refrigerated water outlet pipe 61, heat transfer copper pipe 7, heat exchanger shell 8, sterilizing equipment 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
As shown in fig. 1-2, a counter-flow heat exchanger comprises a heat exchanger shell 8, wherein a fixed seat 3, heat exchange fins 4, a water distribution pipe 5, a water collection pipe 6, a heat exchange copper pipe 7 and a sterilization device 9 are arranged in the heat exchanger shell 8, the heat exchange fins 4 are connected with the inner wall of the heat exchanger shell 8, one end of the heat exchange copper pipe 7 penetrates through the heat exchanger shell 8, extends to the outside and is communicated with the water distribution pipe 5, the other end of the heat exchange copper pipe 7 penetrates through the heat exchanger shell 8, extends to the outside and is communicated with the water collection pipe 6, the heat exchange fins 4 are sleeved on the heat exchange copper pipe 7, the heat exchange copper pipe 7 is in a zigzag shape, a chilled water outlet pipe 61 is connected to the water collection pipe 6, and a chilled water inlet pipe;
the fixed seat 3 is fixedly connected with the inner bottom of the heat exchanger shell 8, a first groove 32 is formed in the upper surface of the fixed seat 3, a second groove 33 is formed in the side wall of the first groove 32, a first through hole 34 communicated with the upper surface of the fixed seat 3 is formed in the side wall of the second groove 33, a sliding block 35 is connected in the first groove 32 in a sliding mode, and an inclined second through hole 36 is formed in the sliding block 35;
the upper surface of the fixed seat 3 is provided with a key mechanism, the key mechanism comprises an elastic piece 31, a pressing piece 39, a first connecting strip 37 and a second connecting strip 38, the lower surface of the pressing piece 39 is fixedly connected with the upper surface of the fixed seat 3 through the elastic piece 31, the upper end of the second connecting strip 38 is fixedly connected with the lower surface of the pressing piece 39, the lower end of the second connecting strip 38 enters the first through hole 34 and the upper end of the first connecting strip 37 is fixedly connected in an inclined manner, and the first connecting strip 37 is inserted into the second through hole 36.
The implementation process comprises the following steps:
when the fan coil unit is required to start cooling, as shown in fig. 3, the fan 1 is started, wind blows to the heat exchanger 3 from the air outlet of the fan 1, and the wind is changed into cold wind after heat exchange of the heat exchanger 3 and blows out to the indoor.
The refrigeration principle is as follows: the chilled water enters the water collecting pipe 6 from the chilled water inlet pipe 51, then enters the plurality of heat exchange copper pipes 7 to exchange heat with the air, and finally flows out of the water collecting pipe 6 and leaves the heat exchanger 3 from the chilled water outlet pipe 61.
The flow direction of the chilled water is reverse to the wind direction generated by the fan 1, and the countercurrent heat exchange is performed, and theoretical calculation and actual test show that the logarithmic mean temperature difference of the countercurrent heat exchange is larger than that of the traditional cross flow heat exchange, so that the effect is more obvious along with the increase of the temperature of the chilled water in the chilled water inlet pipe 51.
According to experimental tests, the countercurrent heat exchange is adopted, when the environment temperature is 24 ℃, the temperature of the chilled water in the chilled water inlet pipe 51 is 12 ℃, the temperature of the chilled water in the chilled water outlet pipe 61 is 17 ℃, the temperature difference of the countercurrent heat exchanger under the same condition is improved by more than 20% compared with that of the traditional cross flow heat exchanger, the air outlet temperature can be lower than that of the chilled water outlet pipe 61 when the countercurrent heat exchange is adopted, the air outlet temperature of the traditional cross flow heat exchange cannot be lower than that of the chilled water outlet pipe 61, obviously, the heat exchange efficiency is greatly improved when the countercurrent heat exchange is adopted under a high-water-temperature working condition, and the energy-saving effect is particularly obvious.
In order to ensure the original heat exchange effect at higher chilled water temperature, the heat exchange area of the surface cooler is only required to be properly increased.
As shown in fig. 3, when the sterilization device 9 needs to be fixed, only the pressing piece 39 needs to be pressed to drive the first connecting strip 37 and the second connecting strip 38 to move downwards, because the first connecting strip 37 and the second through hole 36 are both obliquely arranged, the sliding block 35 moves rightwards, the sterilization device 9 is placed in the first groove 32, the pressing piece 39 is released, the pressing piece 39 moves upwards under the elastic force of the elastic piece 31, the first connecting strip 37 moves upwards, the sliding block 35 moves leftwards and generates pressure on the sliding block 35, and therefore the sterilization device 9 is fixed.
When the sterilization device 9 needs to be replaced, the fixation can be released and the sterilization device 9 can be fixed again only by pressing the pressing sheet 39 and applying the same principle as the process of installing the sterilization device 9
The utility model can conveniently disinfect the inside of the countercurrent heat exchanger through the sterilization device 9; the elastic piece 31, the sliding block 35, the first connecting strip 37, the second connecting strip 38, the pressing piece 39 and the inclined second through hole 36 can conveniently fix and unfix the sterilization device 9; through the heat exchange copper pipe 7 of design zigzag, the wind that heat exchange copper pipe 7 and fan 1 blown out is parallel to each other, and the refrigerated water flow direction is opposite with the wind direction, obviously increases heat exchange efficiency, the energy saving.
In an alternative embodiment of the present invention, the position of the chilled water inlet pipe 51 in the vertical direction is lower than that of the chilled water outlet pipe 61.
According to the utility model discloses an in an optional embodiment, distributive pipe 5 with collector pipe 6 locates the same lateral wall of heat exchanger shell 8.
According to the utility model discloses an in an optional embodiment, heat transfer fin 4 is equipped with a plurality ofly, and is a plurality of heat transfer fin 4 separates the setting.
In an alternative embodiment of the present invention, the sterilization device 9 is a nano-photocatalyst sterilizer.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A counter-flow heat exchanger is characterized by comprising a heat exchanger shell (8), wherein a fixed seat (3), heat exchange fins (4), a water distribution pipe (5), a water collection pipe (6), a heat exchange copper pipe (7) and a sterilization device (9) are arranged in the heat exchanger shell (8), the heat exchange fins (4) are connected with the inner wall of the heat exchanger shell (8), one end of the heat exchange copper pipe (7) penetrates through the heat exchanger shell (8) to extend to the outside and is communicated with the water diversion pipe (5), the other end of the heat exchange copper pipe (7) penetrates through the heat exchanger shell (8) to extend to the outside and is communicated with the water collecting pipe (6), the heat exchange fins (4) are sleeved on the heat exchange copper pipes (7), the heat exchange copper pipes (7) are Z-shaped, the chilled water outlet pipe (61) is connected to the water collecting pipe (6), and the chilled water inlet pipe (51) is connected to the water distributing pipe (5);
the fixed seat (3) is fixedly connected with the inner bottom of the heat exchanger shell (8), a first groove (32) is formed in the upper surface of the fixed seat (3), a second groove (33) is formed in the side wall of the first groove (32), a first through hole (34) communicated with the upper surface of the fixed seat (3) is formed in the side wall of the second groove (33), a sliding block (35) is connected in the first groove (32) in a sliding mode, and an inclined second through hole (36) is formed in the sliding block (35);
the upper surface of the fixing seat (3) is provided with a key mechanism, the key mechanism comprises an elastic piece (31), a pressing piece (39), a first connecting strip (37) and a second connecting strip (38), the lower surface of the pressing piece (39) is fixedly connected with the upper surface of the fixing seat (3), the upper end of the second connecting strip (38) is fixedly connected with the lower surface of the pressing piece (39), the lower end of the second connecting strip (38) enters the first through hole (34) and is fixedly connected with the upper end of the first connecting strip (37) in an inclined mode, and the first connecting strip (37) is inserted into the second through hole (36).
2. A counter flow heat exchanger according to claim 1, characterised in that the inlet pipe (51) for chilled water is vertically lower than the outlet pipe (61) for chilled water.
3. A counter flow heat exchanger according to claim 2, characterised in that the water knock out pipe (5) and the water catch pipe (6) are arranged in the same side wall of the heat exchanger housing (8).
4. A counter-flow heat exchanger according to claim 3, characterised in that a plurality of said heat exchange fins (4) are provided, said plurality of heat exchange fins (4) being spaced apart.
5. A counter-flow heat exchanger according to claim 4, characterised in that the sterilizing device (9) is a nano-photocatalyst sterilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668527.5U CN213453934U (en) | 2020-11-17 | 2020-11-17 | Countercurrent heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668527.5U CN213453934U (en) | 2020-11-17 | 2020-11-17 | Countercurrent heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213453934U true CN213453934U (en) | 2021-06-15 |
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ID=76301989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022668527.5U Active CN213453934U (en) | 2020-11-17 | 2020-11-17 | Countercurrent heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213453934U (en) |
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2020
- 2020-11-17 CN CN202022668527.5U patent/CN213453934U/en active Active
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