High-efficiency single-flow reducing pipe heat exchanger

Abstract

The utility model discloses a high-efficiency single-flow different-diameter pipe heat exchanger, which relates to the technical field of heat exchangers and comprises a heat exchange tank, the heat exchange tank comprises a shell, a pipe pass air inlet is arranged on the right side of the shell, a motor shaft hole is further arranged in the middle of the right side of the shell, an air inlet chamber is arranged on the inner wall of the shell, and an air outlet chamber is arranged on the inner wall of the shell. Two pairs of bearing plates are arranged on the two sides of the inner wall of the shell, a gear ring is further arranged in the bearing plate on the left side, a plurality of flow baffles distributed in a linear array mode are further arranged in the inner wall of the shell, an exhaust chamber is further arranged on the left sides of the flow baffles, and a tube pass exhaust port is further formed in the side, away from the flow baffles, of the exhaust chamber. And a plurality of pipe bundles are arranged in the exhaust chamber in a matched manner. The gear matched with the gear ring is arranged on the tube body, the gear located in the middle tube bundle and the gears of other tube bundles form a planetary gear structure, the tube bundles can rotate, meanwhile, a single tube bundle can rotate, heat exchange air flow is disturbed through the blades, and heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a high-efficiency single-flow reducing tube heat exchanger. Background Art

[0002] A shell and tube heat exchanger is composed of a shell, a heat transfer tube bundle, a tube sheet, a baffle (baffle), and a tube box. The shell is mostly cylindrical, with a tube bundle installed inside. The two ends of the tube bundle are fixed to the tube sheet. The hot and cold fluids for heat exchange, one flows inside the tube, called the tube-side fluid; the other flows outside the tube, called the shell-side fluid. Each time the fluid passes through the tube bundle is called a tube pass, and each time it passes through the shell is called a shell pass. In the existing technology, the fluid in the spiral heat exchange tube is a spiral flow, and the tube diameter does not change, resulting in a consistent change range, resulting in poor heat exchange efficiency.

[0003] Patent publication number CN220187491U describes a single-stream reducer coil-type heat exchanger comprising a shell and a tube coil. Multiple rows of tubes equidistantly distributed in a ring are fixed between the two tube coils. The tubes in the device are composed of small-diameter coils and large-diameter coils that alternate with each other. Since the small-diameter coils and the large-diameter coils are intertwined, the cold fluid will be retained in a large volume in the large-diameter coil, so that the entire coil can receive the low-temperature transfer of the large-diameter coil, so that the fluid inside the coil can be fully heat exchanged, thereby improving the heat exchange efficiency and reducing heat loss.

[0004] However, this device has some shortcomings when used. Although a rotating assembly is provided in the device to drive the tube coil and the tubes to rotate in the shell, each independent tube cannot rotate on its own, and heat will still accumulate in the tubes. In addition, due to the large-diameter and small-diameter coils provided in the device, the heat exchange medium passes through the coils to exchange heat with the medium in the tubes, and the medium does not directly contact the tubes, which will lead to a decrease in heat exchange efficiency.

[0005] Based on this, a high-efficiency single-stream reducer heat exchanger is now provided to eliminate the disadvantages of the existing devices. Utility Model Content

[0006] The purpose of the utility model is to provide a high-efficiency single-flow reducing tube heat exchanger to solve the problems in the background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A high-efficiency single-flow reducer heat exchanger includes a heat exchange tank, which includes a shell. A tube-side air inlet is provided on the right side of the shell, and a motor shaft hole is also provided in the middle of the right side of the shell. An air inlet chamber is opened on the inner wall of the shell, two pairs of bearing plates are provided on both sides of the inner wall of the shell, and a gear ring is also provided in the left bearing plate. A plurality of baffles distributed in a linear array are also provided in the inner wall of the shell, and an exhaust chamber is also provided on the left side of the baffle. A tube-side exhaust port is also opened on the side of the exhaust chamber away from the baffle; and a plurality of tube bundles are arranged in the exhaust chamber.

[0009] Preferably, the tube bundle includes a tube body, and a gear is provided on the tube body. The gear on the outer tube bundle is meshed with the gear ring, and the gear on the middle tube bundle has the same center as the gear ring. A pair of limit blocks are also provided at both ends of the tube body.

[0010] Preferably, the heat exchange tank is further provided with a shell-side port, the shell-side port includes a shell-side air inlet penetrating the shell, and a shell-side exhaust port is further provided below the shell.

[0011] Preferably, a transmission system is further provided on the left side of the tube bundle, and the transmission system includes a motor fixedly connected to the side of the shell, the output end of the motor is connected to a tube bundle connecting shaft, and a plurality of tube bundle air inlets are distributed in a circular array on the side of the tube bundle connecting shaft.

[0012] Preferably, a bearing is provided between the two bearing plates, and a fixing block is provided inside the bearing.

[0013] Preferably, the fixing block includes an air inlet pipe, and a tube bundle positioning block is provided at one end of the air inlet pipe close to the baffle, and a plurality of tube bundle mounting holes cooperating with the tube body are opened in the tube bundle positioning block.

[0014] Preferably, a support frame that matches the shell is further provided at the bottom of the heat exchange tank.

[0015] Preferably, two adjacent baffles are symmetrically distributed on the inner wall of the shell.

[0016] Preferably, a plurality of groups of blades are distributed in a circumferential array on the outside of the tube body.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The utility model provides a gear that cooperates with the ring gear on the tube body, so that the gear located in the middle tube bundle and the gears of other tube bundles form a planetary gear structure. This allows the tube bundle to rotate while a single tube bundle can rotate on its own. The blades disturb the heat exchange airflow, thereby improving the heat exchange efficiency.

[0019] 2. The utility model provides a plurality of baffles symmetrically distributed up and down on the inner wall of the shell, so that the heat transfer medium entering the shell-side air inlet can be turned back multiple times, thereby extending the contact time with the tube bundle. At the same time, the heat transfer medium directly contacts the tube bundle, further improving the heat transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 This is an exploded view of the present invention.

[0022] Figure 3 It is a cross-sectional view of the tank body in the present utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the tube bundle in the utility model.

[0024] Figure 5 It is a structural schematic diagram of the fixing block in the utility model.

[0025] Notes on figure markings: 100, heat exchange tank; 101, shell; 102, tube-side air inlet; 103, motor shaft hole; 104, air inlet chamber; 105, bearing plate; 106, baffle; 107, ring gear; 108, exhaust chamber; 109, tube-side exhaust port; 200, shell-side port; 201, shell-side air inlet; 202, shell-side exhaust port; 300, support frame; 400, transmission system; 401, motor; 402, tube bundle connecting shaft; 403, tube bundle air inlet; 500, tube bundle; 501, tube body; 502, gear; 503, limit block; 600, bearing; 700, fixing block; 701, air inlet pipe; 702, tube bundle positioning block; 703, tube bundle mounting hole. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, Figure 1 、 Figure 3 and Figure 4As shown, a high-efficiency single-flow reducer heat exchanger includes a heat exchange tank 100, which includes a shell 101. A tube-side air inlet 102 is provided on the right side of the shell 101 to input the medium that needs heat exchange; a motor shaft hole 103 is also provided in the middle of the right side of the shell 101, and an air inlet chamber 104 is opened on the inner wall of the shell 101 to accommodate a fixed block 700; two pairs of bearing plates 105 are provided on both sides of the inner wall of the shell 101, and a gear ring 107 is also provided in the left bearing plate 105. A plurality of baffles 106 distributed in a linear array are also provided in the inner wall of the shell 101, and an exhaust chamber 108 is also provided on the left side of the baffle 106. A tube-side exhaust port 109 is also opened on the side of the exhaust chamber 108 away from the baffle 106 to discharge the medium after heat exchange; a plurality of tube bundles 500 are provided in the exhaust chamber 108 to transport the heat exchange medium.

[0028] In one embodiment, Figure 3 and Figure 4 As shown, the tube bundle 500 includes a tube body 501, on which a gear 502 is provided. The gear 502 on the outer tube bundle 500 meshes with the ring gear 107, so that the gear in the middle drives the outer gears to rotate during rotation. The center of the gear 502 on the middle tube bundle 500 coincides with the center of the ring gear 107, allowing the outer gears to rotate around the center of the ring gear 107. A pair of limit blocks 503 are also provided at both ends of the tube body 501 for fixing the tube body 501.

[0029] In one embodiment, Figure 3 As shown, the heat exchange tank 100 is further provided with a shell-side port 200, and the shell-side port 200 includes a shell-side air inlet 201 that penetrates the shell 101, and a shell-side exhaust port 202 is further provided below the shell 101; heat exchange is achieved by discharging the heat exchange medium into the heat exchange tank 100 to achieve direct contact with the tube bundle 500.

[0030] In one embodiment, Figure 4 As shown, a transmission system 400 is further provided on the left side of the tube bundle 500 for driving the tube bundle 500 to rotate; the transmission system 400 includes a motor 401 fixedly connected to the side of the shell 101, and the output end of the motor 401 is connected to a tube bundle connecting shaft 402. A plurality of tube bundle air inlets 403 are distributed in a circumferential array on the side of the tube bundle connecting shaft 402 to transmit the heat exchange medium into the tube bundle 500.

[0031] In one embodiment, Figure 2 and Figure 3As shown, a bearing 600 is provided between the two bearing plates 105 , and a fixing block 700 is sleeved inside the bearing 600 , which can reduce the friction force of the fixing block 700 rotating in the housing 101 .

[0032] In one embodiment, Figure 5 As shown, the fixing block 700 includes an air intake pipe 701 for centralized air intake; a tube bundle positioning block 702 is provided at one end of the air intake pipe 701 close to the baffle 106, and a plurality of tube bundle mounting holes 703 are provided in the tube bundle positioning block 702 for cooperating with the tube body 501, so as to disperse and transfer the heat exchange medium in the air intake pipe 701. Multiple tube bundles will increase the contact area of ​​the heat exchange medium.

[0033] In one embodiment, Figure 1 As shown, a support frame 300 is provided at the bottom of the heat exchange tank 100 and is matched with the shell 101 to support the heat exchange tank 100.

[0034] In one embodiment, Figure 3 As shown, two adjacent baffles 106 are symmetrically distributed on the inner wall of the shell 101, so that the heat exchange medium can be turned back and transferred after contacting the inner wall of the shell 101, effectively extending the heat exchange contact time.

[0035] In one embodiment, Figure 3 and Figure 4 As shown, there are multiple groups of blades distributed in a circular array on the outside of the tube body 501. During the rotation of the tube body 501, the blades can disturb the airflow and improve the heat exchange efficiency.

[0036] Working principle: Start the motor 401 and simultaneously open the tube-side air inlet 102 and the shell-side air inlet 201, allowing the heat exchange medium to enter the inner wall of the shell 101 from the tube bundle 500 and the shell-side air inlet 201 respectively for heat exchange. During this process, the gear 502 on the middle tube bundle 500 will drive the outer gear 502 to rotate during the rotation. Under the engagement of the ring gear 107, the outer gear 502 rotates around the center of the ring gear 107, so that the heat exchange medium in the tube bundle 500 and the shell 101 is more fully in contact, thereby improving the heat exchange efficiency.

[0037] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A high-efficiency single-stream reducing tube heat exchanger, comprising a heat exchange tank (100), wherein the heat exchange tank (100) comprises a shell (101), a tube-side air inlet (102) is provided on the right side of the shell (101), a motor shaft hole (103) is provided in the middle of the right side of the shell (101), an air inlet chamber (104) is provided on the inner wall of the shell (101), two pairs of bearing plates (105) are provided on both sides of the inner wall of the shell (101), a gear ring (107) is provided in the left bearing plate (105), a plurality of baffles (106) distributed in a linear array are provided on the inner wall of the shell (101), an exhaust chamber (108) is provided on the left side of the baffle (106), and a tube-side exhaust port (109) is provided on the side of the exhaust chamber (108) away from the baffle (106); characterized in that A plurality of tube bundles (500) are arranged in the exhaust chamber (108).

2. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: The tube bundle (500) comprises a tube body (501), and a gear (502) is provided on the tube body (501). The gear (502) on the outer tube bundle (500) is meshed with the gear ring (107), and the gear (502) and the gear ring (107) on the middle tube bundle (500) have the same center. A pair of limit blocks (503) are also provided at both ends of the tube body (501).

3. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: The heat exchange tank (100) is further provided with a shell-side port (200), the shell-side port (200) comprising a shell-side air inlet (201) penetrating the shell (101), and a shell-side exhaust port (202) is further provided below the shell (101).

4. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: A transmission system (400) is further provided on the left side of the tube bundle (500). The transmission system (400) includes a motor (401) fixedly connected to the side of the shell (101). The output end of the motor (401) is connected to a tube bundle connecting shaft (402). A plurality of tube bundle air inlets (403) are distributed in a circumferential array on the side of the tube bundle connecting shaft (402).

5. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: A bearing (600) is provided between the two bearing plates (105), and a fixing block (700) is sleeved inside the bearing (600).

6. The high-efficiency single-flow reducing tube heat exchanger according to claim 5, characterized in that: The fixing block (700) comprises an air inlet pipe (701), and a tube bundle positioning block (702) is provided at one end of the air inlet pipe (701) close to the baffle (106). A plurality of tube bundle mounting holes (703) cooperating with the tube body (501) are provided in the tube bundle positioning block (702).

7. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: A support frame (300) that matches the shell (101) is also provided at the bottom of the heat exchange tank (100).

8. The high-efficiency single-flow reducing tube heat exchanger according to claim 1, characterized in that: Two adjacent baffles (106) are symmetrically distributed on the inner wall of the shell (101) in the upper and lower directions.

9. The high-efficiency single-flow reducing tube heat exchanger according to claim 2, characterized in that: The outer side of the tube body (501) is also provided with a plurality of groups of blades distributed in a circumferential array.

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