Efficient energy-saving heat exchanger

Abstract

The utility model relates to the field of heat exchangers, in particular to a high-efficiency energy-saving heat exchanger which comprises two connecting plates, an oil inlet and outlet tank, an oil return tank and a plurality of cooling pipes, pipe holes are formed in the connecting plates, one end of one connecting plate is connected with the oil inlet and outlet tank, and one end of the other connecting plate is connected with the oil return tank. The cooling pipe is inserted into the pipe hole and fixedly connected with the connecting plate, one end of the cooling pipe is communicated with the oil inlet and outlet oil tank, the other end of the cooling pipe is communicated with the oil return tank, and a partition plate arranged in the oil return tank in the vertical direction is located between two partition plates arranged in the oil inlet and outlet oil tank. A flow guide pipe is connected between the two oil inlet and outlet oil tanks. The method has the effect of saving cost.

Description

Technical Field

[0001] The present application relates to the field of heat exchangers, and in particular to a high-efficiency and energy-saving heat exchanger. Background Art

[0002] At present, heat exchangers are devices that transfer part of the heat of hot fluid to cold fluid. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] The heat exchanger used in related technologies is a shell-and-tube heat exchanger. This type of heat exchanger primarily consists of a shell, tube bundle, tube sheet, and header. The shell is typically circular, housing a bundle of parallel or spiral tubes, secured to the tube sheet at both ends. Within a shell-and-tube heat exchanger, two fluids exchange heat: one flowing inside the tubes and the other outside. The walls of the tube bundle serve as the heat transfer surface, exchanging heat between the two fluids to achieve cooling.

[0004] Regarding the related technologies mentioned above, shell and tube heat exchangers perform heat exchange by flowing fluid inside and outside the tubes. In order to improve the heat exchange efficiency, the heat exchange area is generally increased by extending the length of the tube bundle and adding baffles to increase the turbulence effect. This requires a larger area to install the equipment, which increases the cost. Utility Model Content

[0005] In order to save costs, the present application provides a high-efficiency and energy-saving heat exchanger.

[0006] This application provides a high-efficiency and energy-saving heat exchanger, which adopts the following technical solutions:

[0007] A high-efficiency and energy-saving heat exchanger includes two connecting plates, an inlet and outlet oil tank, an oil return tank and several cooling pipes. The connecting plates are provided with pipe holes, one end of one connecting plate is connected to the inlet and outlet oil tanks, and one end of the other connecting plate is connected to the return oil tank. The cooling pipe is inserted into the pipe hole and fixedly connected to the connecting plate, one end of the cooling pipe is connected to the inlet and outlet oil tanks, and the other end of the cooling pipe is connected to the return oil tank. A partition provided inside the return oil tank in the vertical direction is located between the two partitions provided inside the inlet and outlet oil tanks, the upper end of the inlet and outlet oil tanks is connected to the inlet and outlet oil pipes, and a guide pipe is connected between the two inlet and outlet oil tanks.

[0008] By adopting the above technical solution, the inlet and outlet oil tanks are divided into three cavities by two partitions, and the return oil tank is divided into two cavities by a partition. The hot oil enters the upper cavity of the inlet and outlet oil tanks from one of the inlet and outlet oil pipes, and then flows into the upper cavity of the return oil tank along the cooling pipe, and then flows back to the middle cavity of the inlet and outlet oil tanks along the cooling pipe, and then flows into the lower cavity of the return oil tank along the cooling pipe, and then flows back to the lower cavity of the inlet and outlet oil tanks along the cooling pipe, and then enters the other inlet and outlet oil tanks along the guide pipe, flows in the opposite direction of the above-mentioned hot oil flow, and flows out from the other inlet and outlet oil pipes. The hot oil flows back and forth many times in the heat exchanger, which increases the heat exchange area without increasing the floor space, improves the heat exchange efficiency, and saves costs.

[0009] Optionally, a plurality of support frames for supporting the cooling pipes are further included. The cooling pipes pass through the support frames, and the support frames are evenly distributed between the two connecting plates.

[0010] By adopting the above technical solution, after hot oil is introduced into the cooling pipe, the cooling pipe is subjected to greater pressure, and the pressure is evenly shared by the supporting frame, thereby increasing the pressure resistance of the cooling pipe.

[0011] Optionally, the support frame includes a cross bar, two vertical bars, a plurality of support plates and a plurality of screws. The support plates are evenly fixed between the two vertical bars. The two vertical bars are fixedly connected to the cross bar at their upper ends. The support plates are inserted into the gap between two vertically adjacent cooling pipes and abut against the adjacent cooling pipes. The screws pass through the cross bar and the support plates from top to bottom in sequence. Nuts are threadedly connected at both ends of the screws. The screws are inserted into the gap between two horizontally adjacent cooling pipes and abut against the adjacent cooling pipes.

[0012] By adopting the above technical solution, a support plate and a screw are provided between the support frame and the cooling pipe, which reduces the gap between the support frame and the cooling pipe, enhances the stability of the heat exchanger, and reduces the impact of the coolant flow on the cooling pipe.

[0013] Optionally, a pressure plate is fixed between the two connecting plates, and the pressure plate is arranged between the cross bar and the cooling pipe. The lower end surface of the pressure plate abuts the cooling pipe, the vertical rod abuts the side of the pressure plate, and the screw passes through the pressure plate and is slidably connected to the pressure plate along the vertical direction.

[0014] By adopting the above technical solution, the cooling pipe is pressed by a pressure plate, which further reduces the swing of the heat exchanger caused by the impact of the coolant flow on the cooling pipe, thereby enhancing the stability of the heat exchanger.

[0015] Optionally, the inlet and outlet oil tanks and the return oil tank are all connected to the connecting plate by bolts, and a first sealing gasket is provided between the inlet and outlet oil tanks and the return oil tank and the connecting plate.

[0016] By adopting the above technical solution, the sealing between the oil inlet and outlet tanks and the oil return tank and the connecting plate is enhanced.

[0017] Optionally, the oil inlet and outlet pipes and the guide pipe are all connected to the oil inlet and outlet tanks by bolts, and a second sealing gasket is provided between the oil inlet and outlet pipes and the guide pipe and the oil inlet and outlet tanks.

[0018] By adopting the above technical solution, the sealing between the inlet and outlet oil pipes and the guide pipe and the inlet and outlet oil tanks is enhanced.

[0019] Optionally, a plurality of threaded holes are provided on two vertical side surfaces of the connecting plate, and hanging rings threadedly connected to the connecting plate are provided in the threaded holes.

[0020] By adopting the above technical solution, the lifting ring facilitates the assembly and disassembly of the heat exchanger.

[0021] Optionally, the connecting plate, the inlet and outlet oil tanks, the return oil tank, the cooling pipe and the support frame form a group of heat exchange components, and several groups of the heat exchange components are arranged in sequence along the vertical direction.

[0022] By adopting the above technical solution, multiple heat exchangers are arranged in the vertical direction, which increases the heat exchange area without increasing the floor space and improves the heat exchange efficiency.

[0023] Optionally, both upper and lower ends of the vertical rod are provided with mounting blocks, the mounting blocks are provided with through holes for bolts to pass through, and the upper end surface of the horizontal rod is higher than the upper end surface of the vertical rod.

[0024] By adopting the above technical solution, when multiple heat exchangers are arranged in a vertical direction, adjacent heat exchangers are more stable when assembled together.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The inlet and outlet oil tanks are divided into three cavities by two partitions, and the return oil tank is divided into two cavities by a partition. The hot oil enters the upper cavity of the inlet and outlet oil tanks from one of the inlet and outlet oil pipes, then flows into the upper cavity of the return oil tank along the cooling pipe, then flows back to the middle cavity of the inlet and outlet oil tanks along the cooling pipe, then flows into the lower cavity of the return oil tank along the cooling pipe, then flows back to the lower cavity of the inlet and outlet oil tanks along the cooling pipe, then enters the other inlet and outlet oil tanks along the guide pipe, flows in the opposite direction of the above hot oil flow, and flows out from the other inlet and outlet oil pipe. The hot oil flows back and forth multiple times in the heat exchanger, which increases the heat exchange area without increasing the floor space, improves the heat exchange efficiency, and saves costs.

[0027] 2. After hot oil is introduced into the cooling pipe, the cooling pipe is subjected to greater pressure, which is evenly shared by the support frame, thus increasing the pressure resistance of the cooling pipe;

[0028] 3. A support plate and screw are provided between the support frame and the cooling pipe, which narrows the gap between the support frame and the cooling pipe, enhances the stability of the heat exchanger, and reduces the impact of the coolant flow on the cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0030] Figure 2 yes Figure 1 Schematic diagram of the cross section in the AA direction.

[0031] Figure 3 It is a cross-sectional diagram of the oil inlet and outlet tanks.

[0032] Figure 4 It is a cross-sectional diagram of the return oil tank.

[0033] Figure 5 It is a schematic diagram of the overall structure of Example 2.

[0034] Explanation of the accompanying reference numerals: 1. Connecting plate; 11. Pipe hole; 12. First sealing gasket; 13. Lifting ring; 2. Cooling pipe; 3. Oil inlet and outlet tank; 31. Partition; 32. Oil inlet and outlet pipes; 33. Guide pipe; 34. Second sealing gasket; 4. Oil return tank; 5. Support frame; 51. Cross bar; 52. Vertical bar; 521. Mounting block; 53. Support plate; 54. Screw; 55. Nut; 56. Pressure plate. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0036] The present application discloses a high-efficiency and energy-saving heat exchanger.

[0037] Example 1

[0038] Reference Figure 1 and Figure 2 , a high-efficiency and energy-saving heat exchanger includes an oil inlet and outlet tank 3 and a connecting plate 1, one end of the oil inlet and outlet tank 3 is open, and one end of the oil inlet and outlet tank 3 is connected to an oil inlet and outlet pipe 32 and a guide pipe 33, the oil inlet and outlet pipe 32 is detachably connected to the oil inlet and outlet tank 3 at the upper end thereof by bolts, and the guide pipe 33 is detachably connected to the oil inlet and outlet tank 3 at the lower end thereof by bolts, and one end of the opening of the oil inlet and outlet tank 3 is connected to the connecting plate 1 by bolts, and two partitions 31 are provided inside the oil inlet and outlet tank 3, and the two partitions 31 divide the interior of the oil inlet and outlet tank 3 into three cavities, the upper cavity is connected to the oil inlet and outlet pipe 32, and the lower cavity is connected to the guide pipe 33.

[0039] A first sealing gasket 12 is provided between the oil inlet and outlet tanks 3 and the connecting plate 1 . Tightening the bolts causes the first sealing gasket 12 to be squeezed and deformed by the oil inlet and outlet tanks 3 and the connecting plate 1 , thereby enhancing the sealing between the oil inlet and outlet tanks 3 and the connecting plate 1 .

[0040] A second sealing gasket 34 is provided between the oil inlet and outlet pipes 32 and the flow guide pipe 33 and the oil inlet and outlet tank 3 , thereby enhancing the sealing performance between the oil inlet and outlet pipes 32 and the flow guide pipe 33 and the oil inlet and outlet tank 3 .

[0041] Reference Figure 1 and Figure 3 A high-efficiency and energy-saving heat exchanger also includes a return oil tank 4, one end of the return oil tank 4 is open, and the end of the opening of the return oil tank 4 and the oil inlet and outlet tank 3 is connected to the connecting plate 1 by bolts. A partition 31 is provided inside the oil inlet and outlet tank 3, and the partition 31 divides the inside of the oil inlet and outlet tank 3 into two cavities.

[0042] A first sealing gasket 12 is provided between the oil return tank 4 and the connecting plate 1 . Tightening the bolts causes the first sealing gasket 12 to be squeezed and deformed by the oil return tank 4 and the connecting plate 1 , thereby enhancing the sealing between the oil return tank 4 and the connecting plate 1 .

[0043] Reference Figure 2 and Figure 3 The oil in the oil tank 3 is connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2, and the oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2. The oil inlet and outlet tanks 3 are connected to the heat exchanger 1 through the heat exchanger 2.

[0044] Reference Figure 4, a high-efficiency and energy-saving heat exchanger also includes several support frames 5, which are used to support the cooling pipes 2. The support frames 5 are evenly distributed between the two connecting plates 1, which enhances the stability of the heat exchanger. The support frame 5 includes a cross bar 51, two vertical bars 52, several support plates 53 and several screws 54. The two vertical bars 52 are fixedly connected to the cross bar 51 at their upper ends, which enhances the stability of the support frame 5. A mounting block 521 is provided at the lower end of the vertical bar 52. A through hole is opened on the mounting block 521. Bolts are used to pass through the through hole to fasten the mounting block 521 to the installation site to enhance the stability of the heat exchanger. A pressure plate 56 is fixed between the two connecting plates 1. The vertical bar 52 abuts against the side of the pressure plate 56. The cross bar 51, the pressure plate 56 and the support plate 53 are arranged in sequence from top to bottom in the vertical direction. The two ends of the screw 54 are threadedly connected with nuts 55. The two nuts 55 are rotated in opposite directions to make them move toward each other, so that the upper end surface of the cross bar 51 and the lower end surface of the support plate 53 abut against the nuts 55, so that the screw 54 cannot move in the vertical direction. The support plate 53 is evenly fixed between the two vertical rods 52. The pressure plate 56, the support plate 53 and the screw 54 divide a number of spaces on the support frame 5. A cooling pipe 2 is passed through the middle of each space. The support plate 53 and the screw 54 abut against the cooling pipe 2. The lower end surface of the pressure plate 56 abuts against the cooling pipe 2, which reduces the gap between the support frame 5 and the cooling pipe 2, enhances the stability of the heat exchanger, avoids the heat exchanger from swinging in the cooling box, and effectively reduces the impact of the coolant flow on the cooling pipe 2.

[0045] Reference Figure 1 There are several threaded holes on the two vertical sides of the connecting plate 1. When the user assembles and disassembles the heat exchanger, the lifting ring 13 is threadedly connected to the connecting plate 1, and the heat exchanger is lifted to a suitable position using lifting equipment. The assembly and disassembly of the heat exchanger is more time-saving and labor-saving. The lifting equipment can be an existing equipment such as a crane.

[0046] The implementation principle of this embodiment is as follows: the inlet and outlet oil tanks 3 are divided into three cavities by two partitions 31, and the return oil tank 4 is divided into two cavities by a partition 31. The hot oil enters the upper cavity of the inlet and outlet oil tanks 3 from one of the inlet and outlet oil pipes 32, and then flows into the upper cavity of the return oil tank 4 along the cooling pipe 2, and then flows back to the middle cavity of the inlet and outlet oil tanks 3 along the cooling pipe 2, and then flows into the lower cavity of the return oil tank 4 along the cooling pipe 2, and then flows back to the lower cavity of the inlet and outlet oil tanks 3 along the cooling pipe 2, and then enters the other inlet and outlet oil tank 3 along the guide pipe 33, flows in the opposite direction of the above-mentioned hot oil flow direction, and flows out from the other inlet and outlet oil pipe 32. The hot oil flows back and forth many times in the heat exchanger, which increases the heat exchange area without increasing the floor space, improves the heat exchange efficiency, and saves costs.

[0047] Example 2

[0048] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the connecting plate 1, the inlet and outlet oil tanks 3, the return oil tank 4, the cooling pipe 2 and the supporting frame 5 form a group of heat exchange components, and several groups of the heat exchange components are arranged in sequence along the vertical direction. The lower end of the vertical rod 52 is provided with a mounting block 521, and the mounting block 521 is opened with a through hole. The upper end surface of the cross rod 51 is higher than the upper end surface of the vertical rod 52. The vertical rods 52 of the two adjacent groups of heat exchange components are connected end to end, and the mounting block 521 at the lower end of the upper vertical rod 52 abuts the mounting block 521 at the upper end of the lower vertical rod 52. Bolts pass through the through holes, and nuts 55 are used to fasten the two mounting blocks 521 together. The opposite sides of the two upper vertical rods 52 abut against the lower cross rod 51, which enhances the stability of the heat exchanger. The screw 54 installed when using one group can also be removed and replaced with a longer screw 54 to connect multiple groups of heat exchange components.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-efficiency energy-saving heat exchanger, comprising two connecting plates (1), an inlet and outlet oil tank (3), an oil return tank (4) and a plurality of cooling pipes (2), characterized in that: The connecting plate (1) is provided with a pipe hole (11), one end of one connecting plate (1) is connected to the inlet and outlet oil tank (3), and one end of the other connecting plate (1) is connected to the return oil tank (4). The cooling pipe (2) is inserted into the pipe hole (11) and fixedly connected to the connecting plate (1). One end of the cooling pipe (2) is connected to the inlet and outlet oil tank (3), and the other end of the cooling pipe (2) is connected to the return oil tank (4). In the vertical direction, a partition (31) provided inside the return oil tank (4) is located between two partitions (31) provided inside the inlet and outlet oil tank (3). The upper end of the inlet and outlet oil tank (3) is connected to an inlet and outlet oil pipe (32), and a guide pipe (33) is connected between the two inlet and outlet oil tanks (3).

2. The high-efficiency energy-saving heat exchanger according to claim 1, characterized in that: It also comprises a plurality of support frames (5) for supporting the cooling pipes (2), the cooling pipes (2) passing through the inside of the support frames (5), and the support frames (5) are evenly distributed between the two connecting plates (1).

3. The high-efficiency energy-saving heat exchanger according to claim 2, characterized in that: The support frame (5) comprises a cross bar (51), two vertical bars (52), a plurality of support plates (53) and a plurality of screw rods (54); the support plates (53) are evenly fixed between the two vertical bars (52); the two vertical bars (52) are fixedly connected to the cross bar (51) at their upper ends; the support plates (53) are inserted into the gap between two vertically adjacent cooling tubes (2) and abut against the adjacent cooling tubes (2); the screw rods (54) pass through the cross bar (51) and the support plates (53) in sequence from top to bottom; nuts (55) are threadedly connected at both ends of the screw rods (54); the screw rods (54) are inserted into the gap between two horizontally adjacent cooling tubes (2) and abut against the adjacent cooling tubes (2).

4. The high-efficiency energy-saving heat exchanger according to claim 3, characterized in that: A pressing plate (56) is fixedly provided between the two connecting plates (1); the pressing plate (56) is provided between the cross bar (51) and the cooling tube (2); the lower end surface of the pressing plate (56) abuts against the cooling tube (2); the vertical bar (52) abuts against the side of the pressing plate (56); and the screw rod (54) passes through the pressing plate (56) and is slidably connected to the pressing plate (56) along a vertical direction.

5. The high-efficiency energy-saving heat exchanger according to claim 1, characterized in that: The oil inlet and outlet tanks (3) and the oil return tank (4) are both connected to the connecting plate (1) via bolts, and a first sealing gasket (12) is provided between the oil inlet and outlet tanks (3) and the oil return tank (4) and the connecting plate (1).

6. The high-efficiency energy-saving heat exchanger according to claim 1, characterized in that: The oil inlet and outlet pipes (32) and the flow guide pipe (33) are both connected to the oil inlet and outlet tank (3) via bolts, and a second sealing gasket (34) is provided between the oil inlet and outlet pipes (32) and the flow guide pipe (33) and the oil inlet and outlet tank (3).

7. The high-efficiency energy-saving heat exchanger according to claim 4, characterized in that: A plurality of threaded holes are provided on two vertical side surfaces of the connection plate (1), and lifting rings (13) threadedly connected to the connection plate (1) are provided in the threaded holes.

8. The high-efficiency energy-saving heat exchanger according to claim 4, characterized in that: The connecting plate (1), the inlet and outlet oil tanks (3), the oil return tank (4), the cooling pipe (2) and the supporting frame (5) form a group of heat exchange components, and a plurality of groups of the heat exchange components are arranged in sequence along the vertical direction.

9. The high-efficiency energy-saving heat exchanger according to claim 4, characterized in that: The upper and lower ends of the vertical rod (52) are both provided with mounting blocks (521), and the mounting blocks (521) are provided with through holes for bolts to pass through. The upper end surface of the cross rod (51) is higher than the upper end surface of the vertical rod (52).

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