High-vibration-resistance noise-reduction heat exchanger integrated assembly for chemical circulating water system

Abstract

The high-vibration-resistance noise reduction heat exchanger integrated assembly comprises a first-stage noise reduction module, a second-stage noise reduction module and a third-stage noise reduction module, the first-stage noise reduction module comprises a columnar noise reduction shell, noise reduction holes are formed in the inner wall of the noise reduction shell, an interlayer is arranged in the noise reduction shell to serve as a noise reduction cavity, the noise reduction holes communicate with the noise reduction cavity, and the second-stage noise reduction module comprises a second-stage noise reduction module and a third-stage noise reduction module; the second-stage noise reduction module comprises a connecting cover, a sonic sensor, a central processing unit and a reverse sonic generator, the third-stage noise reduction module comprises a noise reduction opening, the noise reduction opening and a connecting cavity are integrally formed, the noise reduction opening is aligned to an air outlet in the top of the heat exchange body, and the first-stage noise reduction module can reduce noise generated by friction of flowing water and air; the secondary noise reduction module can perform active noise reduction on mechanical noise of the motor and the fan, the tertiary noise reduction module performs noise reduction on the air outlet, through the tertiary noise reduction mechanism, noise reduction treatment is performed on friction noise of air and internal mechanical noise by adopting different means, the noise reduction effect is good, and excessive space cannot be occupied.

Description

Technical Field

[0001] The invention relates to a cooling tower, in particular to a high vibration resistance and noise reduction heat exchanger integrated component used in a chemical circulating water system. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger. It realizes the recycling of cooling water and greatly reduces the consumption of cooling water by the heat exchange system. The principle is: hot water is sprayed into the packing layer through a nozzle or a water pipe and fully contacts with the air. In this process, water molecules take away heat by evaporation, thereby lowering the temperature of the water. At the same time, the air is heated and discharged from the top of the cooling tower.

[0003] During the heat exchange between air and water in the heat exchanger assembly, a lot of noise will be generated. The noise sources mainly include three parts: 1. The noise generated by the contact between air and spray water; 2. The mechanical noise generated by the motor at the top of the cooling tower driving the fan to rotate; 3. The noise generated by the friction with the outlet when the air is discharged from the top.

[0004] The existing solution is usually to install a soundproof cover, a soundproof barrier or a soundproof wall outside the heat exchanger assembly. However, this solution not only occupies a large area, greatly affecting the space utilization, but also has a poor noise reduction effect, especially for the mechanical noise at the top of the tower and the noise at the air outlet, which does not improve much. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a high vibration resistance and noise reduction heat exchanger integrated component for a chemical circulating water system.

[0006] The present invention provides a high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system, which adopts the following technical solutions:

[0007] A high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system, comprising a heat exchange main body, wherein the heat exchange main body comprises a filler, a spray pipe, a motor and a fan, wherein the heat exchange main body is provided with a support foot at the bottom, and further comprises a shock absorbing mechanism and a noise reduction mechanism, wherein the noise reduction mechanism comprises a primary noise reduction module, a secondary noise reduction module and a tertiary noise reduction module, wherein the primary noise reduction module is arranged outside the heat exchange main body, the primary noise reduction module and the filler in the heat exchange main body are at the same level, the secondary noise reduction module is arranged above the primary noise reduction module, the secondary noise reduction module and the motor and the fan are at the same level, and the tertiary noise reduction module is arranged on the secondary noise reduction module The first-level noise reduction module includes a columnar sound-absorbing shell, a sound-absorbing hole is opened on the inner wall of the sound-absorbing shell, a partition is arranged in the sound-absorbing shell as a sound-absorbing cavity, and the sound-absorbing hole is communicated with the sound-absorbing cavity, the second-level noise reduction module includes a connecting cover, an acoustic wave sensor, a central processing unit and a reverse acoustic wave generator, the inner wall of the connecting cover is provided with an inner cavity, the acoustic wave sensor and the central processing unit are both arranged in the inner cavity, the reverse acoustic wave generator is arranged on the inner wall of the inner cavity, the third-level noise reduction module includes a sound-absorbing port, the sound-absorbing port is integrally formed with the connecting cavity, and the sound-absorbing port is aligned with the air outlet on the top of the heat exchange body, and the shock-absorbing mechanism is arranged at the bottom of the support foot.

[0008] Preferably, the silencer cavity of the silencer shell is filled with sound-absorbing material, and the sound-absorbing material is sound-absorbing cotton or glass fiber.

[0009] Preferably, the secondary noise reduction module further includes a heat-conducting column, which passes through the silencer shell, one end of which abuts against the outer wall of the heat exchange body, and the other end of which passes through the silencer shell.

[0010] Preferably, an elastic member is provided at one end of the heat-conducting column, and the elastic member abuts against the outer wall of the heat exchange body.

[0011] Preferably, an upper connecting plate and a lower connecting plate are provided on the heat exchange body, threaded holes are opened on the connecting plates, the top and bottom of the silencer shell are respectively fixed to the upper connecting plate and the lower connecting plate by bolts, the silencer shell is arranged in a semicircular shape, and two groups of silencer shells are arranged, and the two groups of silencer shells are detachably connected to each other to form a columnar shape.

[0012] Preferably, the bottom of the connecting cover is detachably connected to the upper connecting plate, a filter is also provided in the inner cavity, one end of the acoustic wave sensor in the inner cavity is provided on the inner wall of the inner cavity, the acoustic wave sensor is connected to the filter through a signal transmission line, and the filter is also connected to the central processing unit through a signal transmission line.

[0013] Preferably, a diverter plate is provided inside the silencer port, and a honeycomb sound-absorbing groove is provided on the diverter plate.

[0014] Preferably, the bottom of the diverter plate is arranged to be arc-shaped.

[0015] Preferably, the shock absorbing mechanism includes an upper support seat, a lower support seat, a connecting rod, a spring, a connecting sleeve, and a pin. The two ends of the connecting rod are respectively hinged to the upper support seat and the lower support seat, one end of the connecting sleeve is hinged to the lower support seat, one end of the pin is hinged to the upper support seat, the pin is telescopically matched with the connecting sleeve, and limiting plates are provided on the pin and the connecting sleeve, and the spring is provided between the limiting plates.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. The first-level noise reduction module is outside the heat exchanger body and is just aligned with the filler part inside the heat exchanger body. When the motor on the top of the heat exchanger body drives the fan to rotate, the air flows upward, the spray pipe sprays water, and heat exchange occurs in the filler. The noise generated by the friction between air and water can be absorbed by the silencer holes on the inner wall of the silencer shell. In addition, a partition is provided inside the silencer shell, which has a better noise reduction effect. The sound-absorbing cavity of the partition is also filled with sound-absorbing materials, which can further improve the noise reduction effect.

[0018] 2. The heat-conducting column is arranged on the muffler shell to prevent the muffler shell from overheating. The heat generated by the heat exchange of the heat exchange body can be discharged through the heat-conducting column. An elastic member is arranged at one end of the heat-conducting column, and the elastic member abuts against the outer wall of the heat exchange body. The elastic member can prevent the vibration of the heat exchange component during operation from colliding with the rigidity of the heat-conducting column to generate new noise;

[0019] 3. The silencer shell can be freely disassembled from the heat exchange body, which is convenient for the inspection of the heat exchange body and the maintenance and replacement of the elastic parts on the heat conduction column.

[0020] 4. The mechanical noise generated by the motor and fan can be collected through the sound wave sensor, and the noise can be input into the filter through the signal transmission line. The filter can effectively filter out the frequency point of a specific frequency or the frequency outside the frequency point to obtain a power signal of a specific frequency, or eliminate the power signal after a specific frequency. The processed signal is input into the central processing unit. The central processing unit calculates the reverse sound wave phase, sound level, frequency, etc. through internal calculation of the received signal, and inputs it into the reverse sound wave generator through the signal transmission line. The reverse sound wave generator emits reverse sound waves according to the received signal to achieve the purpose of neutralizing the noise sound wave and reducing noise.

[0021] 5. A silencer is set at the air outlet on the top of the heat exchanger body to reduce the noise generated by the air friction outlet. When the air flows through the manifold, the sound-absorbing groove on the manifold absorbs the air noise.

[0022] 6. Compared with other shock absorbers, the shock absorbing mechanism can convert downward pressure into horizontal elastic force, will not deform after long-term use, has a longer service life, better shock absorption effect, and can further reduce the noise generated by vibration when the heat exchange component is working.

[0023] 7. The present invention adopts a three-level noise reduction mechanism to reduce the friction noise of the air and the internal mechanical noise by different means, which has a good noise reduction effect and does not take up too much space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The schematic diagram of the overall structure of a high vibration-resistant and noise-reducing heat exchanger integrated assembly for a chemical circulating water system.

[0025] Figure 2 This is a schematic diagram of a high vibration-resistant and noise-reducing heat exchanger integrated assembly for a chemical circulating water system (minus a silencer shell).

[0026] Figure 3 It is a front view of a high vibration resistance and noise reduction heat exchanger integrated assembly for chemical circulating water systems.

[0027] Figure 4 yes Figure 3 Section view along line AA.

[0028] Figure 5 Schematic diagram of the soundproof shell.

[0029] Figure 6 It is the front view of the silencer shell.

[0030] Figure 7 yes Figure 6 Section view along line BB.

[0031] Figure 8 It is a schematic diagram of the connection cover and the silencer port.

[0032] Fig. 9 It is a partial cross-sectional view of the connecting cover (cut along the shaded portion).

[0033] Fig.10 It is a schematic diagram of the shock absorbing mechanism.

[0034] Explanation of the reference numerals: 1. primary noise reduction module; 11. silencer shell; 12. silencer hole; 13. silencer cavity; 14. sound-absorbing material; 15. heat-conducting column; 16. elastic member; 2. secondary noise reduction module; 21. connecting cover; 22. acoustic wave sensor; 23. central processing unit; 24. reverse acoustic wave generator; 25. filter; 3. tertiary noise reduction module; 31. diverter plate; 32. sound-absorbing groove; 4. shock-absorbing mechanism; 41. upper support seat; 42. lower support seat; 43. connecting rod; 44. spring; 45. connecting sleeve; 46. pin; 5. heat exchange body; 51. support foot; 52. filler; 53. fan; 54. motor; 55. upper connecting plate; 56. lower connecting plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, “several” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] The embodiment of the present invention discloses a high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system. Figure 1-7A high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system includes a heat exchange body 5, the heat exchange body 5 includes a filler 52, a spray pipe, a motor 54 and a fan 53, a support foot 51 is arranged at the bottom of the heat exchange body 5, a shock absorbing mechanism 4 is arranged outside the heat exchange body 5, and the noise reduction mechanism includes a primary noise reduction module 1, a secondary noise reduction module 2 and a tertiary noise reduction module 3, the primary noise reduction module 1 is arranged outside the heat exchange body 5, the primary noise reduction module 1 and the filler 52 in the heat exchange body 5 are at the same level, the secondary noise reduction module 2 is arranged above the primary noise reduction module 1, the secondary noise reduction module 2 and the motor 54 and the fan 53 are at the same level, the tertiary noise reduction module 3 is arranged above the secondary noise reduction module 2, the primary noise reduction module 1 includes a columnar silencer shell 11, and the inner wall of the silencer shell 11 A silencer hole 12 is provided, and a partition is provided in the silencer shell 11 as a silencer cavity 13. The silencer hole 12 is communicated with the silencer cavity 13. The silencer cavity 13 of the silencer shell 11 is filled with a sound-absorbing material 14. The sound-absorbing material 14 is sound-absorbing cotton or glass fiber. Through this design, the primary noise reduction module 1 is outside the heat exchange body 5 and is just aligned with the filler 52 part in the heat exchange body 5. When the motor 54 at the top of the heat exchange body 5 drives the fan 53 to rotate, the air flows upward, the spray pipe sprays water, and heat exchange occurs in the filler 52. The noise generated by the friction between air and water can be absorbed by the silencer hole 12 on the inner wall of the silencer shell 11. In addition, a partition is provided in the silencer shell 11, and the sound absorbing effect is better. The sound absorbing cavity of the partition is also filled with a sound absorbing material 14, which can further improve the noise reduction effect.

[0039] Reference Figure 5-7 The first-level noise reduction module 1 also includes a heat-conducting column 15, which passes through the silencer shell 11, one end of the heat-conducting column 15 abuts against the outer wall of the heat exchange body 5, and the other end of the heat-conducting column 15 passes through the silencer shell 11. The heat-conducting column 15 is arranged on the silencer shell 11 to prevent the silencer shell 11 from overheating. The heat generated by the heat exchange of the heat exchange body 5 can be discharged through the heat-conducting column 15. An elastic member 16 is arranged at one end of the heat-conducting column 15, and the elastic member 16 abuts against the outer wall of the heat exchange body 5. The elastic member 16 is arranged to prevent the heat exchange body 5 from vibrating during operation and colliding with the rigidity of the heat-conducting column 15 to generate new noise;

[0040] Reference Figure 4 , 5 An upper connecting plate 55 and a lower connecting plate 56 are provided on the heat exchange body 5, and threaded holes are opened on the connecting plates. The top and bottom of the silencer shell 11 are respectively fixed to the upper connecting plate 55 and the lower connecting plate 56 by bolts. The silencer shell 11 is set to be semicircular. The silencer shell 11 is provided with two groups. The two groups of silencer shells 11 are detachably connected to each other into a columnar shape. Through this design, the silencer shell 11 can be freely removed from the heat exchange body 5, which is convenient for the inspection and maintenance of the heat exchange body 5, and also convenient for the maintenance and replacement of the elastic member 16 on the heat-conducting column 15.

[0041] Reference Figure 8 , 9 The secondary noise reduction module 2 includes a connection cover 21, an acoustic wave sensor 22, a central processing unit 23 and a reverse acoustic wave generator 24. The bottom of the connection cover 21 is detachably connected to the upper connection plate 55. The inner wall of the connection cover 21 is provided with an inner cavity. The acoustic wave sensor 22 and the central processing unit 23 are both provided in the inner cavity. The reverse acoustic wave generator 24 is provided on the inner wall of the inner cavity. A filter 25 is also provided in the inner cavity. One end of the acoustic wave sensor 22 in the inner cavity is provided on the inner wall of the inner cavity. The acoustic wave sensor 22 is connected to the filter 25 through a signal transmission line. The filter 25 is also connected to the central processing unit 23 through a signal transmission line. Through the acoustic wave sensor 22, the acoustic wave can be collected. The mechanical noise generated by the motor 54 and the fan 53 is input to the filter 25 through the signal transmission line. The filter 25 can effectively filter the frequency point of a specific frequency or the frequency outside the frequency point to obtain a power signal of a specific frequency, or a power signal after eliminating a specific frequency. The processed signal is input to the central processing unit 23. The central processing unit 23 calculates the reverse sound wave phase, sound level, frequency, etc. of the received signal through internal calculation, and inputs it to the reverse sound wave generator 24 through the signal transmission line. The reverse sound wave generator 24 sends a reverse sound wave according to the received signal to achieve the purpose of neutralizing the noise sound wave and reducing noise;

[0042] The number of speakers can be 6 or 8, which are aimed at the motor 54 and the fan 53 in the heat exchange body 5. Similarly, the same number of noise sensors are arranged beside the speakers to filter and analyze the noise at different points, thereby generating reverse sound waves of different frequencies and phases, which offset the mechanical noise sound waves and achieve a better active noise reduction effect.

[0043] Reference Figure 4 , 8 The three-stage noise reduction module 3 includes a silencer port, which is integrally formed with the connecting cavity, and is aligned with the air outlet at the top of the heat exchange main body 5. A diverter plate 31 is provided inside the silencer port, and a honeycomb sound-absorbing groove 32 is provided on the diverter plate 31. The bottom of the diverter plate 31 is arranged in an arc shape. Through this design, the silencer port is arranged at the air outlet at the top of the heat exchange main body 5, so that the noise generated by the air friction outlet can be reduced. When the air flows through the diverter plate 31, the sound-absorbing groove 32 on the diverter plate 31 absorbs the air noise;

[0044] Reference Fig.10The shock absorbing mechanism 4 is fixedly connected to the bottom of the support foot 51. The shock absorbing mechanism 4 includes an upper support seat 41, a lower support seat 42, a connecting rod 43, a spring 44, a connecting sleeve 45, and a pin 46. The two ends of the connecting rod 43 are respectively hinged to the upper support seat 41 and the lower support seat 42, one end of the connecting sleeve 45 is hinged to the lower support seat 42, one end of the pin 46 is hinged to the upper support seat 41, and the pin 46 is telescopically matched with the connecting sleeve 45. The pin 46 and the connecting sleeve 45 are both provided with a limiting piece, and the spring 44 is arranged between the limiting pieces. The number of the shock absorbing mechanism 4 is the same as the number of the support legs 51 at the bottom of the heat exchange body 5. The number of legs 51 is the same, and the number of legs 51 is generally 3, 4 or 6. The present invention takes 4 as an example, and the shock absorbing mechanism 4 is also provided with four groups. When the legs 51 apply downward pressure to the upper support seat 41, the upper support seat 41 squeezes the spring 44, the pin 46 retracts into the connecting sleeve 45, and the upper support seat 41 moves parallel to the outside. Compared with other shock absorbers, the shock absorbing mechanism 4 of this design can convert the downward pressure into horizontal elastic force, will not be deformed during long-term use, has a longer service life, and has a better shock absorbing effect, which can further reduce the noise generated by the vibration of the heat exchange component when it is working.

[0045] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system, comprising a heat exchange body (5), wherein the heat exchange body (5) comprises a filler (52), a spray pipe, a motor (54) and a fan (53), and a support foot (51) is arranged at the bottom of the heat exchange body (5), characterized in that: The heat exchanger (5) further comprises a shock absorbing mechanism (4) and a noise reduction mechanism, wherein the noise reduction mechanism comprises a primary noise reduction module (1), a secondary noise reduction module (2) and a tertiary noise reduction module (3), wherein the primary noise reduction module (1) is arranged outside the heat exchange body (5), the primary noise reduction module (1) and the filler (52) in the heat exchange body (5) are at the same level, the secondary noise reduction module (2) is arranged above the primary noise reduction module (1), the secondary noise reduction module (2) and the motor (54) and the fan (53) are at the same level, the tertiary noise reduction module (3) is arranged above the secondary noise reduction module (2), the primary noise reduction module (1) comprises a columnar silencer shell (11), the inner wall of the silencer shell (11) is provided with silencer holes (12), The muffler shell (11) is provided with a partition layer as a muffler cavity (13), the muffler hole (12) is connected to the muffler cavity (13), the secondary noise reduction module (2) comprises a connection cover (21), a sound wave sensor (22), a central processing unit (23) and a reverse sound wave generator (24), the inner wall of the connection cover (21) is provided with an inner cavity, the sound wave sensor (22) and the central processing unit (23) are both arranged in the inner cavity, the reverse sound wave generator (24) is arranged on the inner wall of the inner cavity, the tertiary noise reduction module (3) comprises a muffler port, the muffler port is integrally formed with the connection cavity, and the muffler port is aligned with the air outlet at the top of the heat exchange body (5), and the shock absorbing mechanism (4) is arranged at the bottom of the support foot (51).

2. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 1, characterized in that: The sound absorbing cavity (13) of the sound absorbing shell (11) is filled with a sound absorbing material (14), and the sound absorbing material (14) is sound absorbing cotton or glass fiber.

3. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 1, characterized in that: The first-level noise reduction module (1) further comprises a heat-conducting column (15), wherein the heat-conducting column (15) passes through the silencer shell (11), one end of the heat-conducting column (15) abuts against the outer wall of the heat exchange body (5), and the other end of the heat-conducting column (15) passes through the silencer shell (11).

4. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 3, characterized in that: An elastic member (16) is provided at one end of the heat-conducting column (15), and the elastic member (16) abuts against the outer wall of the heat exchange body (5).

5. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 1, characterized in that: The heat exchange body (5) is provided with an upper connecting plate (55) and a lower connecting plate (56), wherein threaded holes are provided on the connecting plates, and the top and bottom of the silencer shell (11) are respectively fixed to the upper connecting plate (55) and the lower connecting plate (56) by bolts, and the silencer shell (11) is provided in a semicircular shape, and two groups of the silencer shells (11) are provided, and the two groups of the silencer shells (11) are detachably connected to each other to form a columnar shape.

6. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 5, characterized in that: The bottom of the connection cover (21) is detachably connected to the upper connection plate (55); a filter (25) is also arranged in the inner cavity; one end of the sound wave sensor (22) in the inner cavity is arranged on the inner wall of the inner cavity; the sound wave sensor (22) is connected to the filter (25) via a signal transmission line; and the filter (25) is also connected to the central processing unit (23) via a signal transmission line.

7. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 1, characterized in that: A diverter plate (31) is arranged inside the muffler port, and a honeycomb sound absorbing groove (32) is provided on the diverter plate (31).

8. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 7, characterized in that: The bottom of the diverter plate (31) is arranged to be arc-shaped.

9. The high vibration resistance and noise reduction heat exchanger integrated assembly for a chemical circulating water system according to claim 1, characterized in that: The shock absorbing mechanism (4) comprises an upper support seat (41), a lower support seat (42), a connecting rod (43), a spring (44), a connecting sleeve (45), and a pin (46); the two ends of the connecting rod (43) are respectively hinged to the upper support seat (41) and the lower support seat (42); one end of the connecting sleeve (45) is hinged to the lower support seat (42); one end of the pin (46) is hinged to the upper support seat (41); the pin (46) and the connecting sleeve (45) are telescopically matched; both the pin (46) and the connecting sleeve (45) are provided with limit plates; and the spring (44) is arranged between the limit plates.

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