Volumetric two-stage heat exchange equipment

Abstract

The utility model relates to the technical field of heat exchangers, in particular to volumetric two-stage heat exchange equipment which comprises a volumetric tank and a heat exchanger. The shell-and-tube heat exchangers are fixedly arranged on the volume tank, the number of the shell-and-tube heat exchangers is two, the shell-and-tube heat exchangers are arranged up and down, hot fluid channels of the two shell-and-tube heat exchangers are communicated with each other, and cold fluid channels of the two shell-and-tube heat exchangers are communicated with each other; the liquid inlet end of the flow guide pipe is communicated with the liquid outlet end of the cold fluid channel of the shell-and-tube heat exchanger, and the liquid outlet end of the flow guide pipe is communicated with the volume tank. The heat exchanger has the effect of improving the heat exchange effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchangers, in particular to a volumetric two-stage heat exchange device. BACKGROUND

[0002] The volumetric heat exchanger is a heat exchanger that uses cold and hot fluids to flow alternately through the surface of the heat storage body (filler) in the heat storage chamber to exchange heat. The cold and hot fluids of the interwall volumetric heat exchanger are separated by a solid interwall and exchange heat through the interwall, so it is also called. In practical applications, the volumetric heat exchanger is widely used in various fields such as industry, commerce, and residential life due to its excellent heat exchange efficiency and stability.

[0003] In use, the cold fluid flows in the shell, and the hot fluid flows in the heat transfer pipe bundle. The cold fluid changes its temperature by contacting and exchanging with the heat transfer pipe bundle, and finally achieves the purpose of heat exchange. However, the existing volumetric heat exchanger only exchanges heat between the cold fluid and the hot fluid once, which makes the heat exchange effect not ideal. CONTENT OF THE INVENTION

[0004] In order to improve the heat exchange effect, the present application provides a volumetric two-stage heat exchange device.

[0005] The volumetric two-stage heat exchange device provided by the present application adopts the following technical scheme:

[0006] A volumetric two-stage heat exchange device comprises:

[0007] A volumetric tank;

[0008] A tubular heat exchanger is fixedly arranged on the volumetric tank, and the number of the tubular heat exchanger is two and arranged in an up-down manner. The hot fluid channels of the two tubular heat exchangers are connected to each other, and the cold fluid channels are connected to each other.

[0009] A flow guide pipe, the inlet end of the flow guide pipe is connected to the outlet end of the cold fluid channel of the tubular heat exchanger, and the outlet end of the flow guide pipe is connected to the volumetric tank.

[0010] The hot fluid flows into the hot fluid passage of the upper shell-and-tube heat exchanger, then flows into the lower shell-and-tube heat exchanger along the hot fluid passage, and finally flows out of the hot fluid passage. The cold fluid flows into the cold fluid passage of the lower shell-and-tube heat exchanger, then flows into the upper shell-and-tube heat exchanger along the cold fluid passage, and finally enters the bottom of the volume tank under the guidance of the flow guide pipe, avoiding the occurrence of dead water area in the bottom of the volume tank, and making the volume tank full of the cold fluid after being heated, thereby meeting the use requirements of the user. The hot fluid flows from top to bottom, and the cold fluid flows from bottom to top. During the heat exchange process, the convection heat exchange is formed. The high-temperature part of the hot fluid heats the high-temperature part of the cold fluid, and the low-temperature part of the hot fluid heats the low-temperature part of the cold fluid, thereby fully utilizing the heat of the hot fluid. The two shell-and-tube heat exchangers are connected in series to increase the heat exchange space, realize more sufficient heat exchange, and improve the heat exchange effect.

[0011] Optionally, one end of the shell-and-tube heat exchanger extends into the volume tank.

[0012] By adopting the above technical scheme, the space of the volume tank is better utilized for heat exchange. At the same time, since the volume tank is full of the cold fluid after being heated, the shell-and-tube heat exchanger also plays a certain temperature maintaining effect, thereby reducing the heat loss.

[0013] Optionally, a drain pipe is fixed to the bottom of the volume tank, and a cover is connected to the drain pipe through flanges.

[0014] By adopting the above technical scheme, the sewage in the volume tank can be discharged by opening the cover.

[0015] Optionally, a connecting rod is rotatably arranged on the drain pipe, a scraper is fixedly arranged on the connecting rod, the scraper abuts against the inner bottom wall of the volume tank, and a driving assembly for driving the scraper to rotate is arranged on the drain pipe.

[0016] By adopting the above technical scheme, the scraper is driven to rotate by the driving assembly, so that the scraper can more comprehensively clean the inner bottom wall of the volume tank, which is conducive to discharging the deposits in the volume tank and reducing the adhesion of dirt on the volume tank.

[0017] Optionally, the driving assembly comprises a first bevel gear fixedly arranged on the connecting rod, a rotating shaft rotatably arranged on the drain pipe, and a second bevel gear fixedly arranged on the rotating shaft; and the first bevel gear and the second bevel gear are engaged.

[0018] By adopting the above technical scheme, the second bevel gear is driven to rotate by rotating the rotating shaft, the connecting rod is driven to rotate by the first bevel gear, and the scraper is driven to rotate by the connecting rod, thereby realizing the driving of the scraper and cleaning the volume tank.

[0019] Optionally, the rotating shaft is provided with a rotating rod, and the rotating rod is provided with a handle rotatingly.

[0020] By adopting the above technical scheme, when the handle is needed to be used, the handle is moved out from below the cover by rotating the rotating rod, then the handle drives the rotating rod to rotate by rotating the handle, and the rotating rod drives the rotating shaft to rotate, so as to realize the driving of the scraper. When the cover is installed, the handle is abutted against the cover from below by rotating the rotating rod, so as to support the cover to some extent, and the staff is more convenient when installing the cover.

[0021] Optionally, the exhaust pipe is fixedly provided with a isolation cover, and the first bevel gear and the second bevel gear are located in the isolation cover.

[0022] By adopting the above technical scheme, the isolation cover can place the dirt attached to the first bevel gear and the second bevel gear, so as to avoid the influence of the dirt on the meshing between the first bevel gear and the second bevel gear.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. Hot fluid flows into the hot fluid channel of the upper tube-shell heat exchanger, and then flows into the lower tube-shell heat exchanger along the hot fluid channel, and finally flows out of the hot fluid channel. Cold fluid flows into the cold fluid channel of the lower tube-shell heat exchanger, and then flows into the upper tube-shell heat exchanger along the cold fluid channel, and finally flows out under the guiding action of the flow guide pipe. The hot fluid flows from top to bottom, and the cold fluid flows from bottom to top. During the heat exchange process, convection heat exchange is formed, the high-temperature part of the hot fluid heats the high-temperature part of the cold fluid, and the low-temperature part of the hot fluid heats the low-temperature part of the cold fluid, so that the heat of the hot fluid is fully utilized. The two tube-shell heat exchangers are connected in series to increase the heat exchange space, realize more sufficient heat exchange, and improve the heat exchange effect.

[0025] 2. When the handle is needed to be used, the handle is moved out from below the cover by rotating the rotating rod, then the handle drives the rotating rod to rotate by rotating the handle, and the rotating rod drives the rotating shaft to rotate, so as to realize the driving of the scraper. When the cover is installed, the handle is abutted against the cover from below by rotating the rotating rod, so as to support the cover to some extent, and the staff is more convenient when installing the cover. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure schematic diagram of the embodiment of the present application.

[0027] Figure 2 is the cross-sectional view of the volume tank of the embodiment of the present application.

[0028] Figure 3 isFigure 2 Partial enlarged view of part A.

[0029] Fig. 1, volume tank; 2, tubular heat exchanger; 3, flow guide pipe; 41, blowdown pipe; 42, cover; 51, connecting rod; 52, scraper; 53, first bevel gear; 54, rotating shaft; 55, second bevel gear; 56, rotating rod; 57, handle; 58, isolation shell. DETAILED DESCRIPTION

[0030] The technical solutions in the application will be further described in detail below with reference to the drawings.

[0031] The embodiment of the application discloses a volume type two-stage heat exchange equipment. Figure 1 The volume type two-stage heat exchange equipment comprises a volume tank 1, a tubular heat exchanger 2 and a flow guide pipe 3.

[0032] Please refer to Figure 1 and Figure 2 The tubular heat exchanger 2 is fixedly arranged on the volume tank 1, and the number of the tubular heat exchanger 2 is two and arranged in an up-down mode. The hot fluid channels of the two tubular heat exchangers 2 are communicated with each other, and the cold fluid channels of the two tubular heat exchangers 2 are communicated with each other, so that the hot fluid and the cold fluid can continuously flow through the two tubular heat exchangers 2, and two-stage heat exchange is realized. Specifically, the hot fluid flows from the upper tubular heat exchanger 2 to the lower tubular heat exchanger 2, and the cold fluid flows from the lower tubular heat exchanger 2 to the upper tubular heat exchanger 2, so that convection heat exchange is formed in the heat exchange process, the high-temperature part of the hot fluid heats the high-temperature part of the cold fluid, and the low-temperature part of the hot fluid heats the low-temperature part of the cold fluid, so that the heat of the hot fluid is fully utilized, and the heat exchange efficiency is improved.

[0033] Please refer to Figure 1 and Figure 2 The liquid inlet end of the flow guide pipe 3 is communicated with the liquid outlet end of the cold fluid channel of the tubular heat exchanger 2, and the liquid outlet end of the flow guide pipe 3 is communicated with the volume tank 1, so that the cold fluid after two-stage heat exchange is finally introduced into the volume tank 1, and the whole heat exchange process is completed. The cold fluid is introduced into the bottom of the volume tank 1 through the flow guide pipe 3, so that the dead water area in the bottom of the volume tank 1 is avoided, and the inside of the volume tank 1 is filled with the cold fluid after temperature rise, so that the use demand of the user is met.

[0034] Please refer to Figure 1 and Figure 2 In order to better utilize the space of the volume tank 1 for heat exchange, one end of the tubular heat exchanger 2 extends into the inside of the volume tank 1. At the same time, since the volume tank 1 is filled with the cold fluid after heat exchange, the tubular heat exchanger 2 is also kept at a certain temperature, and the heat loss is reduced.

[0035] Please refer to Figure 1 and Figure 3 A drain pipe 41 is fixedly connected to the bottom of the volume tank 1, and a cover 42 is flange-connected to the drain pipe 41. The cover 42 is opened regularly to discharge the impurities and dirt deposited on the bottom of the volume tank 1 through the drain pipe 41, thereby ensuring the cleanliness of the volume tank 1.

[0036] Please refer to Figure 3 In order to facilitate the cleaning of the bottom of the volume tank 1, a connecting rod 51 is rotatably arranged on the drain pipe 41, and a scraper 52 is fixedly arranged on the connecting rod 51. The shape of the scraper 52 matches the shape of the bottom of the volume tank 1. The scraper 52 is abutted against the inner bottom wall of the volume tank 1, and the connecting rod 51 is rotated to enable the scraper 52 to scrape off the dirt attached to the inner bottom wall of the volume tank 1.

[0037] Meanwhile, please refer to Figure 3 The drain pipe 41 is further provided with a driving assembly for driving the rotation of the scraper 52. Specifically, the driving assembly comprises a first bevel gear 53 fixedly arranged on the connecting rod 51, a rotating shaft 54 rotatably arranged on the drain pipe 41, and a second bevel gear 55 fixedly arranged on the rotating shaft 54. One end of the rotating shaft 54 extends into the drain pipe 41, and the other end extends out of the drain pipe 41. The first bevel gear 53 and the second bevel gear 55 are engaged. When the rotating shaft 54 is rotated, the first bevel gear 53 is driven to rotate by the second bevel gear 55, thereby driving the rotation of the connecting rod 51 and the scraper 52.

[0038] Further, please refer to Figure 3 In order to facilitate the operation of the driving assembly, a rotating rod 56 is further rotatably arranged on the rotating shaft 54. The rotating rod 56 is perpendicular to the rotating shaft 54 and rotates around its own axis. Meanwhile, a handle 57 is rotatably arranged on the rotating rod 56. The handle 57 is perpendicular to the rotating rod 56 and rotates around its own axis, thereby providing multiple degrees of freedom, so that the staff can flexibly adjust the position and angle of the handle 57 according to needs. The handle 57 is parallel to the cover 42 and can be rotated to abut against the cover 42 when not in use, thereby saving space and avoiding interference with other components. In addition, when installing the cover 42, the handle 57 can be rotated to abut against the lower side of the cover 42, thereby supporting the cover 42. The staff does not need to hold the cover 42 all the time, which facilitates the installation of the cover 42.

[0039] In addition, please refer to Figure 3 In order to protect the gear assembly, an isolation casing 58 is fixedly arranged on the drain pipe 41. The first bevel gear 53 and the second bevel gear 55 are located in the isolation casing 58. The isolation casing 58 can protect the first bevel gear 53 and the second bevel gear 55 from external pollution and damage, thereby improving the reliability and service life of the equipment. Meanwhile, the connecting rod 51 and the rotating shaft 54 are rotatably connected to the isolation casing 58, thereby ensuring the smoothness and stability of rotation.

[0040] The principle of the embodiment of the present application is that the hot fluid flows into the hot fluid passage of the upper tube-shell heat exchanger 2, then flows into the lower tube-shell heat exchanger 2 along the hot fluid passage, and finally flows out of the hot fluid passage. The cold fluid flows into the cold fluid passage of the lower tube-shell heat exchanger 2, then flows into the upper tube-shell heat exchanger 2 along the cold fluid passage, and finally enters the volume tank 1 under the guiding action of the flow guide pipe 3.

[0041] When the volume tank 1 needs to be cleaned, the cover 42 is removed, and then the handle 57 is rotated to drive the scraper 52 to rotate, thereby cleaning the inner bottom wall of the volume tank 1.

[0042] The embodiments of the specific embodiments are the preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A volumetric two-stage heat exchanger, characterized in that, Include: Volume tank (1); Shell and tube heat exchanger (2) is fixedly arranged on the volume tank (1), the number of the shell and tube heat exchanger (2) is two and is arranged in up and down, the hot fluid passage of two shell and tube heat exchangers (2) is communicated with each other, and the cold fluid passage is communicated with each other; Flow guide pipe (3), the liquid inlet end of the flow guide pipe (3) is communicated with the liquid outlet end of the cold fluid passage of the shell and tube heat exchanger (2), and the liquid outlet end of the flow guide pipe (3) is communicated with the volume tank (1).

2. A volumetric two-stage heat exchanger according to claim 1, characterized in that: One end of the shell and tube heat exchanger (2) extends into the inside of the volume tank (1).

3. A volumetric two-stage heat exchanger according to claim 1, characterized in that: The bottom of the volume tank (1) is fixedly provided with a blowdown pipe (41), and a cover (42) is flange-connected to the blowdown pipe (41).

4. A volumetric two-stage heat exchanger according to claim 3, characterized in that: A connecting rod (51) is rotatably arranged on the blowdown pipe (41), a scraper (52) is fixedly arranged on the connecting rod (51), the scraper (52) abuts against the inner bottom wall of the volume tank (1), and a driving assembly for driving the scraper (52) to rotate is arranged on the blowdown pipe (41).

5. A volumetric two-stage heat exchanger according to claim 4, characterized in that: The driving assembly comprises a first bevel gear (53) fixedly arranged on the connecting rod (51), a rotating shaft (54) rotatably arranged on the blowdown pipe (41) and a second bevel gear (55) fixedly arranged on the rotating shaft (54); the first bevel gear (53) and the second bevel gear (55) are engaged.

6. A volumetric two-stage heat exchanger according to claim 5, characterized in that: A rotating rod (56) is rotatably arranged on the rotating shaft (54), a handle (57) is rotatably arranged on the rotating rod (56), the handle (57) is parallel to the cover (42), and the handle (57) can abut against the cover (42).

7. A volumetric two-stage heat exchanger according to claim 5, characterized in that: An isolation cover (58) is fixedly arranged on the blowdown pipe (41), and the first bevel gear (53) and the second bevel gear (55) are located in the isolation cover (58).

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