An environment-friendly heat exchanger applied in a power plant

Abstract

The present invention relates to the technical field of heat exchangers, and particularly to an environment-friendly heat exchanger applied in a power plant, which improves the heat exchange efficiency; it includes an exchanger housing, a connection cap, a drain pipe, heat exchange pipes, a water inlet pipe, a water outlet pipe, a support frame and a control mechanism. The connection cap is fitted and installed at the notch of the exchanger housing, and the connection cap is threadedly connected with the exchanger housing. The drain pipe is installed at the through hole of the exchanger housing, and the drain pipe is located at the far end of the connection cap. The support frame is installed inside the cavity of the exchanger housing, and the heat exchange pipes are fitted and installed on the support frame. The heat exchange pipes are coaxially installed with the exchanger housing. The water inlet pipe is communicated with the water inlet of the heat exchange pipes, and the water inlet pipe is fitted and connected with the slot hole of the exchanger housing. The water outlet pipe is communicated with the water outlet of the heat exchange pipes, and the water outlet pipe is fitted and connected with the inner hole of the exchanger housing. The control mechanism is respectively connected with the exchanger housing and the heat exchange pipes in a matching manner.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, and particularly to an environment-friendly heat exchanger applied in a power plant. Background Art

[0002] A power plant refers to a power plant that converts a certain form of primary energy into electric energy for use in fixed facilities or transportation, such as a thermal power plant, a hydropower plant, a steam power plant, a diesel power plant, or a nuclear power plant. During the power generation process, high-pressure steam generated by burning in a boiler passes through a steam turbine to generate electricity. However, at present, the waste heat of the remaining part is wasted in many power plants in our country. Therefore, recycling waste heat is a very good topic. In addition to traditional methods such as waste heat power generation and heating, there is also waste heat aquaculture. For the waste heat resources of power plants, this patent provides an environment-friendly heat exchanger applied in a power plant to improve resource utilization efficiency and reduce energy waste.

[0003] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements, and it is an industrial application of convective heat transfer and heat conduction. Heat exchangers can be classified in different ways. According to its operating process, it can be divided into three categories: shell-and-tube type, mixed type, and regenerative type (or recuperative type); according to the compactness of its surface, it can be divided into two categories: compact type and non-compact type.

[0004] For the existing common heat exchanger structures, the operation procedures are complex during maintenance and repair, and at the same time, the heat exchange stability is relatively poor. Summary of the Invention

[0005] The main purpose of the present invention is to provide an environment-friendly heat exchanger applied in a power plant, so as to effectively solve the problems pointed out in the background art.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] An environment-friendly heat exchanger applied in a power plant includes an exchanger housing, a connection cap, a drain pipe, heat exchange pipes, a water inlet pipe, a water outlet pipe, a support frame, and a control mechanism. The connection cap is fitted and installed at the notch of the exchanger housing, and the connection cap is threadedly connected to the exchanger housing. The drain pipe is installed at the through hole of the exchanger housing, and the drain pipe is located at the far end from the connection cap. The support frame is installed inside the cavity of the exchanger housing, and the heat exchange pipes are fitted and installed on the support frame. The heat exchange pipes are coaxially installed with the exchanger housing. The water inlet pipe is communicated with the water inlet of the heat exchange pipes and is fitted and connected to the slot hole of the exchanger housing. The water outlet pipe is communicated with the water outlet of the heat exchange pipes and is fitted and connected to the inner hole of the exchanger housing. The control mechanism is respectively connected to the exchanger housing and the heat exchange pipes.

[0008] Further, the control mechanism includes a moving seat, a mounting cap, a baffle, a spring and a driving mechanism. The moving seat is slidably mounted in the inner cavity of the heat exchange tube. The mounting cap is fitted and mounted at the inner hole of the heat exchange tube, and the mounting cap is threadedly connected with the inner hole of the heat exchange tube in a matching manner. The baffle is slidably mounted in the inner cavity of the heat exchange tube. The two ends of the spring are respectively connected with the mounting cap and the baffle in a matching manner. The baffle is driven by the spring and is naturally located in the middle of the water outlet and the water inlet of the heat exchange tube. The driving mechanism is mounted on the exchanger housing, and the driving mechanism is respectively connected with the heat exchange tube and the moving seat in a matching manner.

[0009] Further, the driving mechanism includes a servo motor and a threaded rod. The servo motor is mounted on the exchanger housing, the threaded rod is rotatably mounted on the heat exchange tube, one end of the threaded rod is coaxially connected with the output end of the servo motor, and the threaded rod is connected with the threaded hole of the moving seat in a matching manner.

[0010] Further, the moving seat includes a piston slider, a support frame, a transmission member and a sealing cover. A plurality of groups of water through holes are provided on the piston slider. A plurality of groups of support frames are fitted and mounted at the through grooves of the piston slider. The transmission member is rotatably connected with the support frame in a matching manner. The sealing cover is fitted and mounted on the transmission member, and the sealing cover is connected with the water through holes in a matching manner. The sealing cover is located on the water outlet side of the heat exchange tube.

[0011] Further, a limit post is further included. The limit post is fitted and mounted on the transmission member, and the limit post is in contact connection with the support frame.

[0012] Further, an installation plate, a driving rod, a stirring paddle and a transmission mechanism are further included. The installation plate is fitted and mounted inside the cavity of the exchanger housing. Two groups of driving rods are rotatably mounted on the installation plate in a matching manner. A plurality of groups of stirring paddles are fitted and mounted on the driving rods. The transmission mechanism is respectively connected with the threaded rod and the driving rod in a matching manner.

[0013] Further, the transmission mechanism includes a driving sprocket, a driven sprocket and a chain. The driving sprocket is coaxially mounted on the threaded rod, the driven sprocket is coaxially mounted on the driving rod, and the chain is respectively meshed with the driving sprocket and the two groups of driven sprockets.

[0014] Further, a flange is included. The flange is fitted and mounted on the connecting cap.

[0015] Further, a positioning post is further included. The positioning post is fitted and mounted on the baffle, and the positioning post is slidably connected with the shaft hole of the mounting cap in a matching manner.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are as follows: By screwing the connecting cap to the exchanger housing, it is convenient to clean the impurities and scale inside the cavity of the exchanger housing and assemble the equipment. At the same time, the connecting cap connects the exchanger housing to the hot water source, the exchanger housing exchanges the cold water source with the hot water source, the drain pipe facilitates the drainage of the hot water source, the cavity of the exchanger housing enables the water source to circulate, the support frame stably supports the heat exchange pipe inside the cavity of the exchanger housing, the inlet pipe connects the heat exchange pipe to the cold water source end, the outlet pipe discharges the heat exchange pipe cavity after heat exchange is completed, and the control mechanism increases the residence time of the cold water source in the heat exchange pipe cavity to improve the heat exchange efficiency. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a front view structural schematic diagram of the present invention;

[0019] Figure 2 It is an axonometric structural schematic diagram of the present invention;

[0020] Figure 3 It is a sectional structural schematic diagram of the present invention;

[0021] Figure 4 It is an internal structural schematic diagram of the present invention;

[0022] Figure 5 It is an internal axonometric schematic diagram of the present invention;

[0023] Figure 6 It is a part structural schematic diagram of the present invention;

[0024] Figure 7 It is a part axonometric schematic diagram of the present invention;

[0025] Reference signs in the drawings: 1. Exchanger housing; 2. Connecting cap; 3. Drain pipe; 4. Heat exchange pipe; 5. Inlet pipe; 6. Outlet pipe; 7. Support frame; 8. Moving seat; 9. Mounting cap; 10. Baffle; 11. Spring; 12. Servo motor; 13. Threaded rod; 14. Limit post; 15. Mounting plate; 16. Driving rod; 17. Stirring paddle; 18. Driving sprocket; 19. Driven sprocket; 20. Chain; 21. Flange; 22. Positioning post; 81. Piston slider; 82. Support frame; 83. Transmission part; 84. Sealing cover. Detailed Embodiments

[0026] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0027] An environment-friendly heat exchanger applied in a power plant according to the present invention, the installation manner, connection manner or setting manner of all the above-mentioned components are common mechanical manners, and the specific structures, models and coefficient indexes of all its components are its own technologies. As long as the beneficial effects can be achieved, they can be implemented, so no more details will be described.

[0028] For an environment-friendly heat exchanger applied in a power plant according to the present invention, in the case of no contrary description, the directional terms such as "up and down, left and right, front and back, inside and outside, and vertical and horizontal" included in the terms only represent the directions of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms. At the same time, the serial numbers such as "first", "second" and "third" do not represent specific quantities and orders, but are only used for name distinction. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] As Figures 1 to 4 shown, an environment-friendly heat exchanger applied in a power plant includes an exchanger housing 1, a connection cap 2, a drain pipe 3, heat exchange pipes 4, a water inlet pipe 5, a water outlet pipe 6, a support frame 7 and a control mechanism. The connection cap 2 is fitted and installed at the notch of the exchanger housing 1, and the connection cap 2 is threadedly connected with the exchanger housing 1. The drain pipe 3 is installed at the through hole of the exchanger housing 1, and the drain pipe 3 is located at the far end of the connection cap 2. The support frame 7 is installed inside the cavity of the exchanger housing 1, and the heat exchange pipes 4 are fitted and installed on the support frame 7. The heat exchange pipes 4 are coaxially installed with the exchanger housing 1. The water inlet pipe 5 is communicated with the water inlet of the heat exchange pipes 4, and the water inlet pipe 5 is fitted and connected with the slot hole of the exchanger housing 1. The water outlet pipe 6 is communicated with the water outlet of the heat exchange pipes 4, and the water outlet pipe 6 is fitted and connected with the inner hole of the exchanger housing 1. The control mechanism is respectively connected with the exchanger housing 1 and the heat exchange pipes 4 in a matching manner;

[0030] During use, the impurities and scale inside the cavity of the exchanger housing 1 are facilitated to be cleaned and the equipment is assembled by threadedly connecting the connecting cap 2 with the exchanger housing 1. At the same time, the exchanger housing 1 is connected to the hot water source through the connecting cap 2. The cold water source and the hot water source are exchanged through the exchanger housing 1. The hot water source is facilitated to drain through the drain pipe 3, and the water source circulates in the cavity of the exchanger housing 1. The heat exchange tube 4 is stably supported inside the cavity of the exchanger housing 1 through the support frame 7. The heat exchange tube 4 is connected to the cold water source end through the water inlet pipe 5. After heat exchange is completed, the heat exchange tube 4 discharges the inner cavity through the water outlet pipe 6. The control mechanism controls to increase the residence time of the cold water source in the inner cavity of the heat exchange tube 4, improving the heat exchange efficiency.

[0031] As a preference of the above embodiment, the control mechanism includes a moving seat 8, a mounting cap 9, a baffle 10, a spring 11 and a driving mechanism. The moving seat 8 is slidably mounted in the inner cavity of the heat exchange tube 4. The mounting cap 9 is fitted and mounted at the inner hole of the heat exchange tube 4. The mounting cap 9 is threadedly connected with the inner hole of the heat exchange tube 4 in a matching manner. The baffle 10 is slidably mounted in the inner cavity of the heat exchange tube 4. Both ends of the spring 11 are respectively connected with the mounting cap 9 and the baffle 10 in a matching manner. The baffle 10 is driven by the spring 11 to be in its natural state at the middle of the water outlet and water inlet of the heat exchange tube 4. The driving mechanism is mounted on the exchanger housing 1 and is respectively connected with the heat exchange tube 4 and the moving seat 8 in a matching manner.

[0032] During use, the inner hole of the heat exchange tube 4 is sealed by the mounting cap 9, the water outlet of the heat exchange tube 4 is sealed by the baffle 10, the spring 11 provides a reset power after the baffle 10 is driven, and the cold water source in the heat exchange tube 4 is driven and pressurized by the movement of the moving seat 8 so that the water after heat exchange moves the baffle 10 and just leaves at the water outlet of the heat exchange tube 4. The impurities and scale inside the heat exchange tube 4 are facilitated to be cleaned by the threaded connection between the mounting cap 9 and the heat exchange tube 4, and at the same time, the convenience of device assembly is increased.

[0033] As a preference of the above embodiment, the driving mechanism includes a servo motor 12 and a threaded rod 13. The servo motor 12 is mounted on the exchanger housing 1. The threaded rod 13 is rotatably mounted on the heat exchange tube 4. One end of the threaded rod 13 is coaxially connected with the output end of the servo motor 12. The threaded rod 13 is connected with the threaded hole of the moving seat 8 in a matching manner.

[0034] During use, the threaded rod 13 is provided with a rotational power by the servo motor 12, and the cold water is driven by the rotation of the threaded rod 13 in cooperation with the threaded hole of the moving seat 8, facilitating the discharge after heat exchange is completed.

[0035] Preferably, as in the above embodiment, the moving seat 8 includes a piston slider 81, a support frame 82, a transmission member 83, and a sealing cover 84. Multiple groups of water through holes are provided on the piston slider 81. Multiple groups of support frames 82 are cooperatively installed at the through groove of the piston slider 81. The transmission member 83 is rotatably connected to the support frame 82 in cooperation. The sealing cover 84 is cooperatively installed on the transmission member 83. The sealing cover 84 is cooperatively connected to the water through holes. The sealing cover 84 is located on the water outlet side of the heat exchange tube 4;

[0036] During use, the transmission member 83 is rotatably supported on the piston slider 81 through the support frame 82. The sealing cover 84 is rotatably installed on the support frame 82 through the transmission member 83. When the piston slider 81 moves towards the water inlet end of the heat exchange tube 4 through the water through holes of the piston slider 81, water can flow towards the water outlet end of the heat exchange tube 4. When the piston slider 81 moves towards the water outlet of the heat exchange tube 4 through the sealing cover 84, the water through holes of the piston slider 81 are blocked to prevent cold water from flowing back, increasing the heat exchange efficiency and continuity of the water source.

[0037] Preferably, as in the above embodiment, a limit post 14 is further included. The limit post 14 is cooperatively installed on the transmission member 83 and is in contact connection with the support frame 82;

[0038] During use, the rotation angle of the transmission member 83 driving the sealing cover 84 is limited through the limit post 14, improving the cooperation stability of the device and preventing the sealing cover 84 from flipping and affecting the stable cooperation with the water through holes of the moving seat 8.

[0039] Preferably, as in the above embodiment, an installation plate 15, a driving rod 16, a stirring paddle 17, and a transmission mechanism are further included. The installation plate 15 is cooperatively installed inside the cavity of the exchanger housing 1. Two groups of driving rods 16 are rotatably installed on the installation plate 15 in cooperation. Multiple groups of stirring paddles 17 are cooperatively installed on the driving rod 16. The transmission mechanism is respectively cooperatively connected to the threaded rod 13 and the driving rod 16;

[0040] During use, the two groups of driving rods 16 are rotatably supported inside the cavity of the exchanger housing 1 through the installation plate 15. The threaded rod 13 drives the driving rod 16 to rotate synchronously through the transmission mechanism. The multiple groups of stirring paddles 17 are driven by the driving rod 16 to rotate, increasing the water heat transfer efficiency by agitating the hot water source inside the cavity of the exchanger housing 1.

[0041] Preferably, the transmission mechanism includes a driving sprocket 18, a driven sprocket 19, and a chain 20. The driving sprocket 18 is coaxially installed on the threaded rod 13. The driven sprocket 19 is coaxially installed on the driving rod 16. The chain 20 is meshed and connected to the driving sprocket 18 and the two groups of driven sprockets 19 respectively;

[0042] During use, the threaded rod 13 is drivingly connected to the chain 20 through the driving sprocket 18, the driving rod 16 is drivingly connected to the chain 20 through the driven sprocket 19, and the threaded rod 13 drives the two groups of driving rods 16 to rotate synchronously by meshing the chain 20 with the driving sprocket 18 and the two groups of driven sprockets 19 respectively, improving the synchronous transmission of the device and reducing the production cost of the device.

[0043] As a preference of the above embodiment, it includes a flange 21, and the flange 21 is fitted and installed on the connection cap 2;

[0044] During use, the device is installed and fixed to the hot water source end through the moving seat 8, increasing the convenience of device assembly and improving the adaptability of the device.

[0045] As a preference of the above embodiment, it further includes a positioning post 22, the positioning post 22 is fitted and installed on the baffle 10, and the positioning post 22 is in sliding connection with the shaft hole of the mounting cap 9;

[0046] During use, the movement track of the baffle 10 is limited by the positioning post 22 when it slides, increasing the stability of the device during movement and preventing the influence on the device seal caused by tilting.

[0047] First, the connection cap 2 is communicated with the hot water source end through the flange 21, then the drain pipe 3 is communicated with the circulation pipe, then the water inlet pipe 5 is communicated with the cold water source end, then the water outlet pipe 6 is communicated with the recovery pipe, then the hot water source enters the cavity of the heat exchanger housing 1 through the connection cap 2, then the cold water source enters the inner cavity of the heat exchange pipe 4 through the water inlet pipe 5, and then the cold water source exchanges heat with the hot water source. Then, start the servo motor 12 to drive the threaded rod 13 to rotate. After that, the threaded rod 13 is in threaded connection with the threaded hole of the moving seat 8 to connect the water source in the inner cavity of the heat exchange pipe 4 to the water outlet end of the heat exchange pipe 4. Then, by driving the baffle 10, the water outlet of the heat exchange pipe 4 is opened and discharged through the water outlet pipe 6. After that, the servo motor 12 moves reversely again, and then the threaded rod 13 rotates reversely and cooperates with the moving seat 8 to enable the water at the cold water source end to flow through the moving seat 8 through the water through holes.

[0048] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An environment-friendly heat exchanger applied in a power plant, characterized in that It includes an exchanger housing (1), a connecting cap (2), a drain pipe (3), a heat exchange pipe (4), a water inlet pipe (5), a water outlet pipe (6), a support frame (7) and a control mechanism. The connecting cap (2) is fitted and installed at the notch of the exchanger housing (1), and the connecting cap (2) is threadedly connected to the exchanger housing (1). The drain pipe (3) is installed at the through hole of the exchanger housing (1), and the drain pipe (3) is located at the far end from the connecting cap (2). The support frame (7) is installed inside the cavity of the exchanger housing (1), and the heat exchange pipe (4) is fitted and installed on the support frame (7). The heat exchange pipe (4) is coaxially installed with the exchanger housing (1). The water inlet pipe (5) is communicated with the water inlet of the heat exchange pipe (4), and the water inlet pipe (5) is connected to the slot hole of the exchanger housing (1). The water outlet pipe (6) is communicated with the water outlet of the heat exchange pipe (4), and the water outlet pipe (6) is connected to the inner hole of the exchanger housing (1). The control mechanism is respectively connected to the exchanger housing (1) and the heat exchange pipe (4). The control mechanism includes a moving seat (8), a mounting cap (9), a baffle (10), a spring (11) and a driving mechanism. The moving seat (8) is slidably installed in the inner cavity of the heat exchange pipe (4). The mounting cap (9) is fitted and installed at the inner hole of the heat exchange pipe (4), and the mounting cap (9) is threadedly connected to the inner hole of the heat exchange pipe (4). The baffle (10) is slidably installed in the inner cavity of the heat exchange pipe (4). The two ends of the spring (11) are respectively connected to the mounting cap (9) and the baffle (10). The baffle (10) is driven by the spring (11) to be in its natural state at the middle between the water outlet and the water inlet of the heat exchange pipe (4). The driving mechanism is installed on the exchanger housing (1), and the driving mechanism is respectively connected to the heat exchange pipe (4) and the moving seat (8).

2. The environmental protection type heat exchanger applied to a power plant as claimed in claim 1, wherein The driving mechanism includes a servo motor (12) and a threaded rod (13). The servo motor (12) is installed on the exchanger housing (1), and the threaded rod (13) is rotatably installed on the heat exchange pipe (4). One end of the threaded rod (13) is coaxially connected to the output end of the servo motor (12), and the threaded rod (13) is connected to the threaded hole of the moving seat (8).

3. The environmentally friendly heat exchanger applied in a power plant according to claim 1, characterized in that The moving seat (8) includes a piston slider (81), a support frame (82), a transmission part (83) and a sealing cover (84). Multiple groups of water through holes are provided on the piston slider (81). Multiple groups of the support frames (82) are fitted and installed at the through slots of the piston slider (81). The transmission part (83) is rotatably connected to the support frame (82). The sealing cover (84) is fitted and installed on the transmission part (83), and the sealing cover (84) is connected to the water through holes. The sealing cover (84) is located on the water outlet side of the heat exchange pipe (4).

4. The environmentally friendly heat exchanger applied to a power plant according to claim 3, wherein, It also includes a limit post (14). The limit post (14) is fitted and installed on the transmission part (83), and the limit post (14) is in contact connection with the support frame (82).

5. The environmentally friendly heat exchanger applied to a power plant according to claim 4, characterized in that, It further includes a mounting plate (15), a driving rod (16), a stirring paddle (17) and a transmission mechanism. The mounting plate (15) is cooperatively mounted inside the cavity of the exchanger housing (1). Two groups of the driving rods (16) are rotatably mounted on the mounting plate (15) in cooperation. Multiple groups of the stirring paddles (17) are cooperatively mounted on the driving rod (16). The transmission mechanism is respectively cooperatively connected with the threaded rod (13) and the driving rod (16).

6. The environmentally friendly heat exchanger applied to a power plant according to claim 5, characterized in that, The transmission mechanism includes a driving sprocket (18), a driven sprocket (19) and a chain (20). The driving sprocket (18) is coaxially mounted on the threaded rod (13). The driven sprocket (19) is coaxially mounted on the driving rod (16). The chain (20) is meshed and connected with the driving sprocket (18) and two groups of the driven sprockets (19) respectively.

7. The environmentally friendly heat exchanger applied to a power plant according to claim 1, characterized in that, It includes a flange (21). The flange (21) is cooperatively mounted on the connecting cap (2).

8. The environmentally friendly heat exchanger applied to a power plant according to claim 1, characterized in that, It further includes a positioning column (22). The positioning column (22) is cooperatively mounted on the baffle (10). The positioning column (22) is slidably connected with the mounting cap (9) in a shaft-hole fit manner.

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