Structure for low-temperature control of heat exchanger

Abstract

The utility model discloses a structure for low-temperature control of a heat exchanger. The structure comprises a box body, a fluid pipe, an upper baffle plate, a lower baffle plate, an upper sliding group and a lower sliding group, the fluid pipe penetrates through the box body and is used for heat exchange of gas flowing through the box body; an inlet and an outlet opposite to the inlet are formed in the box body; the upper baffle is slidably arranged on the upper sliding set, and the upper baffle and the upper sliding set are arranged on the upper portion of the inlet. The lower baffle is slidably arranged on the lower sliding set, and the lower baffle and the lower sliding set are arranged on the lower portion of the inlet. An air inlet is defined by the upper baffle and the lower baffle; the upper baffle slides under the driving of the upper sliding set, and the lower baffle slides under the driving of the lower sliding set, so that the opening degree of the three-way control valve is increased by changing the effective contact area of gas and the heat exchanger, low-temperature control in the oven is stable, the valve operates normally, temperature fluctuation in the oven can be reduced, the debugging difficulty is lowered, and the debugging time is shortened.

Description

Technical Field

[0001] The utility model relates to the field of low-temperature control of heat exchangers, in particular to a structure used for low-temperature control of heat exchangers. Background Art

[0002] The drying stage in the existing lithium battery manufacturing process requires that a drying coating line has several sections of ovens with lower required temperatures, which are about 70°C to 90°C. The general structure of the drying coating line is that the oven heat exchanger, the three-way valve and the oven are connected in sequence, and the temperature of each section of the oven is adjusted by adjusting the working opening range of the three-way control valve within 20%-90%. However, the adjustment and debugging time of the three-way valve is long and the opening range of different ovens is difficult to replicate;

[0003] The effective heat exchange area of ​​the oven heat exchanger is large, and the heat flow entering the three-way valve is large. If the flow of the three-way control valve is too low, it will cause large fluctuations in the temperature control inside the oven and damage the valve. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a structure for low temperature control of a heat exchanger which can assist a three-way valve in controlling the temperature inside an oven and avoid large fluctuations in the temperature control inside the oven.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A structure for low temperature control of a heat exchanger, comprising a box, a fluid pipe, an upper baffle, a lower baffle, an upper sliding group and a lower sliding group;

[0007] The fluid pipe is arranged to penetrate the box body and is used for heat exchange of the gas flowing through the box body;

[0008] The box body is provided with an inlet and an outlet arranged opposite to the inlet;

[0009] The upper baffle is slidably disposed on the upper sliding group, and the upper baffle and the upper sliding group are disposed on the upper part of the entrance;

[0010] The lower baffle is slidably disposed on the lower sliding group, and the lower baffle and the lower sliding group are disposed at the lower part of the entrance;

[0011] The upper baffle plate and the lower baffle plate form an air inlet.

[0012] In the structure as described above, the upper sliding groups are two groups, and the upper sliding groups are respectively arranged on the left and right sides of the upper part of the entrance, and the upper baffle is arranged between the two upper sliding groups;

[0013] There are two lower sliding groups, which are respectively arranged on the left and right sides of the lower part of the entrance, and the lower baffle is arranged between the two lower sliding groups.

[0014] In the structure as described above, the upper sliding group includes an upper screw rod, an upper slide rail, an upper slider, an upper connecting block and an upper driving member;

[0015] The upper driving member is arranged above the inlet, the output end of the upper driving member is connected to the upper screw rod, the upper slide rail is arranged parallel to the upper screw rod, the upper connecting block is slidably arranged on the upper slide rail, and the upper slider is fixedly connected to the upper connecting block and slidably arranged on the upper screw rod;

[0016] The upper connecting block is fixedly connected to the upper baffle;

[0017] The lower sliding group includes a lower screw rod, a lower lower rail, a lower slider, a lower connecting block and a lower driving member;

[0018] The lower driving member is arranged below the inlet, the output end of the lower driving member is connected to the lower screw rod, the lower lower rail is arranged parallel to the lower screw rod, the lower connecting block is slidably arranged on the lower lower rail, and the lower sliding block is fixedly connected to the lower connecting block and slidably arranged on the lower screw rod;

[0019] The lower connecting block is fixedly connected to the lower baffle.

[0020] In the structure as described above, convex strips are further provided on both sides of the inlet, and the two convex strips are arranged to protrude in opposite directions, and the upper sliding group and the lower sliding group are arranged on the side of the convex strips facing away from the outlet.

[0021] In the structure as described above, the convex strips include an upper convex strip disposed at the upper portion of the inlet and a lower convex strip disposed at the lower portion of the inlet;

[0022] The upper convex strip is provided with an upper slide groove, and the left and right end portions of the upper baffle plate extend into the upper slide groove, and the upper baffle plate can slide in the upper slide groove under the drive of the upper sliding group;

[0023] The lower convex strip is provided with a lower sliding groove, and the left and right end portions of the lower baffle plate extend into the upper sliding groove. The lower baffle plate can slide in the lower sliding groove under the drive of the lower sliding group.

[0024] In the structure as described above, the convex strips are high temperature resistant convex strips.

[0025] In the above structure, the distance between the upper sliding group and the lower sliding group is D, and D>0.

[0026] In the structure as described above, the upper baffle plate and the lower baffle plate may be bendable metal plates;

[0027] An upper reel is provided at the top of the inlet, and two ends of the upper reel are rotatably connected to the left and right sides of the inner wall of the box respectively;

[0028] A lower reel is provided at the bottom end of the inlet, and two ends of the lower reel are rotatably connected to the left and right sides of the inner wall of the box respectively;

[0029] The top end of the upper baffle is fixedly connected to the upper reel, and the bottom end of the lower baffle is fixedly connected to the lower reel;

[0030] In the structure as described above, a temperature sensor is provided at the outlet.

[0031] The beneficial effects of the utility model are:

[0032] The upper baffle and the lower baffle form an air inlet. The upper baffle slides under the drive of the upper sliding group, and the lower baffle slides under the drive of the lower sliding group, so as to change the size of the air inlet, thereby changing the effective contact area between the gas and the heat exchanger to increase the opening of the three-way control valve, so that the low-temperature control inside the oven is stable and the valve operates normally, which can reduce the temperature fluctuation inside the oven, reduce the difficulty of debugging, and shorten the debugging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Figure 1 It is a schematic diagram of the structure of the utility model;

[0035] Figure 2 yes Figure 1 A magnified view of the structure of the middle A part;

[0036] Figure 3 yes Figure 1 A magnified view of the structure of the middle B section;

[0037] Figure 4 is along Figure 1 Section view along line AA. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0039] Reference Figure 1 , a structure for low temperature control of a heat exchanger, comprising a box body 1, a fluid pipe 7, an upper baffle 2, a lower baffle 3, an upper sliding group 4 and a lower sliding group 5;

[0040] The fluid pipe 7 is arranged to penetrate the box body 1 and is used for heat exchange of the gas flowing through the box body 1;

[0041] The box body 1 is provided with an inlet 11 and an outlet arranged opposite to the inlet 11;

[0042] The upper baffle plate 2 is slidably disposed on the upper sliding group 4, and the upper baffle plate 2 and the upper sliding group 4 are disposed on the upper portion of the inlet 11;

[0043] The lower baffle plate 3 is slidably disposed on the lower sliding group 5, and the lower baffle plate 3 and the lower sliding group 5 are disposed at the lower part of the inlet 11;

[0044] The upper baffle plate 2 and the lower baffle plate 3 enclose an air inlet 13 .

[0045] The upper baffle 2 slides under the drive of the upper sliding group 4, and the lower baffle 3 slides under the drive of the lower sliding group 5, changing the size of the air inlet, thereby changing the effective contact area between the gas and the heat exchanger to increase the opening of the three-way control valve, so that the low-temperature control inside the oven is stable and the valve operates normally, which can reduce the temperature fluctuation inside the oven, reduce the difficulty of debugging, and shorten the debugging time.

[0046] Furthermore, the upper sliding groups 4 are two groups, and the upper sliding groups 4 are respectively arranged on the left and right sides of the upper part of the inlet 11, and the upper baffle 2 is arranged between the two upper sliding groups 4;

[0047] There are two lower sliding groups 5 , which are respectively arranged at the left and right sides of the lower part of the inlet 11 , and the lower baffle 3 is arranged between the two lower sliding groups 5 .

[0048] Compared with only setting one set of upper sliding groups 4 and one set of lower sliding groups 5 to drive the upper baffle 2 and the lower baffle 3 to move, the solution in this embodiment can make the upper baffle 2 and the lower baffle 3 move smoothly and accurately control the effective heat exchange area of ​​the gas.

[0049] Specifically, the upper sliding group 4 includes an upper screw rod 41, an upper slide rail 42, an upper slider 43, an upper connecting block 44 and an upper driving member 45;

[0050] The upper driving member 45 is disposed above the inlet 11, the output end of the upper driving member 45 is connected to the upper screw rod 41, the upper slide rail 42 is disposed parallel to the upper screw rod 41, the upper connecting block 44 is slidably disposed on the upper slide rail 42, and the upper slider 43 is fixedly connected to the upper connecting block 44 and slidably disposed on the upper screw rod 41;

[0051] The upper connecting block 44 is fixedly connected to the upper baffle 2;

[0052] The lower sliding group 5 includes a lower screw rod 51, a lower lower rail 52, a lower slider 53, a lower connecting block 54 and a lower driving member 55;

[0053] The lower driving member 55 is disposed below the inlet 11, the output end of the lower driving member 55 is connected to the lower screw rod 51, the lower lower rail 52 is disposed parallel to the lower screw rod 51, the lower connecting block 54 is slidably disposed on the lower lower rail 52, and the lower slider 53 is fixedly connected to the lower connecting block 54 and slidably disposed on the lower screw rod 51;

[0054] The lower connecting block 54 is fixedly connected to the lower baffle plate 3 .

[0055] Taking the upper sliding group 4 as an example, when in use, the upper driving member 45 drives the upper screw rod 41 to rotate, thereby driving the upper sliding block 43 on the upper screw rod 41 to slide, and the upper sliding block 43 drives the upper connecting block 44 to slide in the upper sliding rail 42, so that the upper connecting block 44 drives the upper baffle 2 to move.

[0056] More specifically, convex strips 6 are further provided on both sides of the inlet 11, and the two convex strips 6 are provided to protrude in opposite directions; the provision of the convex strips 6 reduces the area of ​​the inlet 11; the upper sliding group 4 and the lower sliding group 5 are provided on the side of the convex strips 6 facing away from the outlet, so that the width of the upper baffle plate 2 and the lower baffle plate 3 can completely cover the width of the inlet 11 (that is, the distance between the convex strips 6 on both sides of the inlet 11), thereby further accurately controlling the effective heat exchange area of ​​the gas.

[0057] More specifically, the convex strip 6 includes an upper convex strip 61 provided at the upper portion of the inlet 11 and a lower convex strip 62 provided at the lower portion of the inlet 11;

[0058] The upper convex strip 61 is provided with an upper slide groove 611, and the left and right end portions of the upper baffle plate 2 extend into the upper slide groove 611. The upper baffle plate 2 can slide in the upper slide groove 611 under the drive of the upper sliding group 4;

[0059] The lower convex strip 62 is provided with a lower sliding groove 622 , and the left and right end portions of the lower baffle plate 3 extend into the upper sliding groove 611 . The lower baffle plate 3 can slide in the lower sliding groove 622 driven by the lower sliding group 5 .

[0060] On the one hand, the setting of the upper slide groove 611 and the lower slide groove 622 can play a guiding role, assisting the upper sliding group 4 and the lower sliding group 5 to smoothly drive the upper baffle 2 and the lower baffle 3 to move; on the other hand, the left and right side ends of the upper baffle 2 extend into the upper slide groove 611, and the left and right side ends of the lower baffle 3 extend into the upper slide groove 611, which can prevent the gas from entering the box body 1 from the gap between the upper sliding group 4, the convex strip 6 and the upper baffle 2, and prevent the gas from entering the box body 1 from the gap between the lower sliding group 5, the convex strip 6 and the lower baffle 3, thereby increasing the effective contact area between the gas and the heat exchanger, ensuring that the gas can only enter from between the upper baffle 2 and the lower baffle 3, and further improving the precise control of the effective heat exchange area of ​​the gas.

[0061] More specifically, the convex strip 6 is a high temperature resistant convex strip, which prevents the convex strip 6 from being deformed due to high temperature and affecting the sliding of the upper baffle plate 2 in the upper slide groove 611 and the sliding of the lower baffle plate 3 in the lower slide groove 622 .

[0062] Furthermore, the spacing distance between the upper sliding group 4 and the lower sliding group 5 is D, and D>0, so as to avoid the inlet air 13 being completely closed and the heat accumulation inside the box body 1, which may cause the valve to be damaged.

[0063] Furthermore, the upper baffle plate 2 and the lower baffle plate 3 may be bendable metal plates;

[0064] An upper reel 21 is disposed at the top of the inlet 11, and two ends of the upper reel 21 are rotatably connected to the left and right sides of the inner wall of the box body 1 respectively;

[0065] A lower reel 31 is disposed at the bottom end of the inlet 11, and both ends of the lower reel 31 are rotatably connected to the left and right sides of the inner wall of the box body 1 respectively;

[0066] The top end of the upper baffle plate 2 is fixedly connected to the upper reel 21, and the bottom end of the lower baffle plate 3 is fixedly connected to the lower reel 31;

[0067] By rotating the upper reel 21 around the axis of the upper reel 21 and rotating the lower reel 31 around the axis of the lower reel 31, the upper baffle 2 and the lower baffle 3 can be slid to change the size of the air inlet; in addition, the upper reel 21 and the lower reel 31 also have the function of storing flexible metal plates, making the structure compact and saving space.

[0068] Furthermore, a temperature sensor is provided at the outlet. A controller connected to the temperature sensor signal is provided at any point on the heat exchanger, and the controller is also connected to the upper drive member 45 and the lower drive member 55 by signal; during the drying process, when the temperature sensor senses that the outlet temperature is greater than the target value, the temperature sensor converts the temperature signal into an electrical signal and transmits it to the controller, and the controller analyzes the electrical signal to obtain the temperature in the box 1, so that the controller controls the operating power of the upper drive member 45 and the lower drive member 55, and the upper drive member 45 drives the upper baffle 2 to move, and the lower drive member 55 drives the lower baffle 3 to move closer to the middle of the inlet 11, thereby reducing the air inlet area of ​​the air inlet 13 and reducing the effective heat exchange area of ​​the gas, and vice versa; to achieve intelligent control of the heat exchange area, quickly respond to temperature changes, and have high sensitivity.

[0069] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A structure for low temperature control of a heat exchanger, characterized in that: It comprises a box body (1), a fluid pipe (7), an upper baffle (2), a lower baffle (3), an upper sliding group (4) and a lower sliding group (5); The fluid pipe (7) is arranged to penetrate the box (1) and is used for heat exchange with the gas flowing through the box (1); The box body (1) is provided with an inlet (11) and an outlet arranged opposite to the inlet (11); The upper baffle (2) is slidably disposed on the upper sliding group (4), and the upper baffle (2) and the upper sliding group (4) are disposed above the inlet (11); The lower baffle (3) is slidably disposed on the lower sliding group (5), and the lower baffle (3) and the lower sliding group (5) are disposed at the lower part of the inlet (11); The upper baffle plate (2) and the lower baffle plate (3) enclose an air inlet (13).

2. The structure according to claim 1, characterized in that: There are two upper sliding groups (4), and the upper sliding groups (4) are respectively arranged on the left and right sides of the upper part of the inlet (11), and the upper baffle (2) is arranged between the two upper sliding groups (4); There are two lower sliding groups (5), which are respectively arranged on the left and right sides of the lower part of the inlet (11), and the lower baffle (3) is arranged between the two lower sliding groups (5).

3. The structure according to claim 2, characterized in that: The upper sliding group (4) comprises an upper screw rod (41), an upper sliding rail (42), an upper sliding block (43), an upper connecting block (44) and an upper driving member (45); The upper driving member (45) is arranged above the inlet (11), the output end of the upper driving member (45) is connected to the upper screw rod (41), the upper slide rail (42) is arranged parallel to the upper screw rod (41), the upper connecting block (44) is slidably arranged on the upper slide rail (42), and the upper sliding block (43) is fixedly connected to the upper connecting block (44) and slidably arranged on the upper screw rod (41); The upper connecting block (44) is fixedly connected to the upper baffle (2); The lower sliding group (5) comprises a lower screw rod (51), a lower sliding rail (52), a lower sliding block (53), a lower connecting block (54) and a lower driving member (55); The lower driving member (55) is arranged below the inlet (11), the output end of the lower driving member (55) is connected to the lower screw rod (51), the lower lower rail (52) is arranged parallel to the lower screw rod (51), the lower connecting block (54) is slidably arranged on the lower lower rail (52), and the lower sliding block (53) is fixedly connected to the lower connecting block (54) and slidably arranged on the lower screw rod (51); The lower connecting block (54) is fixedly connected to the lower baffle plate (3).

4. The structure according to claim 3, characterized in that: The inlet (11) is also provided with convex strips (6) on both sides, and the two convex strips (6) are arranged to protrude in opposite directions. The upper sliding group (4) and the lower sliding group (5) are arranged on the side of the convex strip (6) facing away from the outlet.

5. The structure according to claim 4, characterized in that: The convex strip (6) comprises an upper convex strip (61) provided at the upper part of the inlet (11) and a lower convex strip (62) provided at the lower part of the inlet (11); An upper slide groove (611) is provided on the upper convex strip (61), and the left and right end portions of the upper baffle plate (2) extend into the upper slide groove (611). The upper baffle plate (2) can slide in the upper slide groove (611) under the drive of the upper sliding group (4); The lower convex strip (62) is provided with a lower sliding groove (622), and the left and right end portions of the lower baffle plate (3) extend into the upper sliding groove (611). The lower baffle plate (3) can slide in the lower sliding groove (622) under the drive of the lower sliding group (5).

6. The structure according to claim 4 or 5, characterized in that: The convex strips (6) are high temperature resistant convex strips.

7. The structure according to claim 1, characterized in that: The spacing distance between the upper sliding group (4) and the lower sliding group (5) is D, and D>0.

8. The structure according to claim 1, characterized in that: The upper baffle plate (2) and the lower baffle plate (3) may be bendable metal plates; An upper reel (21) is provided at the top of the inlet (11), and two ends of the upper reel (21) are rotatably connected to the left and right sides of the inner wall of the box body (1) respectively; A lower reel (31) is provided at the bottom end of the inlet (11), and two ends of the lower reel (31) are rotatably connected to the left and right sides of the inner wall of the box body (1) respectively; The top end of the upper baffle plate (2) is fixedly connected to the upper reel (21), and the bottom end of the lower baffle plate (3) is fixedly connected to the lower reel (31).

9. The structure according to claim 1, characterized in that: A temperature sensor is provided at the outlet.

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