Noise reduction type screw refrigerating unit
By setting spherical bumps on the noise reduction kit of the screw freezer and adding noise reduction medium in the partition cavity, the problem of high noise during operation of the screw freezer is solved, the noise and vibration reduction is achieved, and the stability of the equipment is improved and lifespan.
Patent Information
- Application Number
- CN202421322734.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The screw freezer generates a lot of noise during operation, affecting the use environment and equipment life.
A noise reduction screw refrigeration unit is designed. By setting spherical bumps equally on the inner wall of the noise reduction kit, the surface area is increased, and the noise reverse angle is complicated, thereby disrupting the propagation path and adding noise reduction in the partition cavity. The medium was blocked twice.
It effectively reduces the noise and vibration of the screw freezer during operation, improves the operating stability of the equipment, extends the service life, and reduces equipment failures and maintenance costs caused by vibration.
Smart Images
Figure CN222504390U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw compression, in particular to a noise-reducing screw type refrigeration unit. Background Art
[0002] Screw freezer is an advanced refrigeration equipment, and its working principle is based on screw compression technology. During the refrigeration process, the screw inhales gas as it rotates, and then gradually compresses the gas through further rotation of the screw, and finally discharges the compressed gas. The main advantage of screw freezer is its high efficiency and energy saving, which is due to its design of synchronous rotation of double screws, which not only improves working efficiency but also reduces energy consumption. At the same time, since there is no contact between moving parts, the service life of oil-free screw freezer is relatively long. In addition, the control accuracy of oil-free screw freezer is very high, which can reach 0.1 degrees, which makes it very useful in applications that require strict temperature control, such as in medical and laboratory fields.
[0003] Screw freezers also have some disadvantages. First, compared with other types of refrigeration equipment, their prices may be higher, mainly due to the use of more advanced refrigeration technology and more sophisticated control systems. Second, although oil-free screw freezers have a long service life, they may also fail if not properly maintained. In addition, since their refrigeration compressors use high-speed rotating screws, the noise generated may be relatively large. Therefore, those skilled in the art provide a noise-reducing screw refrigeration unit to solve the problems raised in the above background technology. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a noise-reducing screw refrigeration unit, including a compressor driving device, a cooling mechanism, an air intake pump body, an air intake pipeline and a compressor unit, wherein the cooling mechanism is fixedly installed on the right side of the compressor driving device, and a compressor unit is arranged on the right side of the cooling mechanism, and the compressor driving device drives the screw in the compressor unit to perform compression rotation, the upper end of the compressor unit is connected to the air intake pipeline, and the other side of the air intake pipeline is connected to the air intake pump body, and the air intake pump body transports the intake gas through the air intake pipeline to the compressor unit for gas compression;
[0005] The compressor unit includes a compressor body, an air intake pipe cavity, a compression pipe cavity, a reflux air pump, a driving screw member, a partition cavity, a noise reduction kit, a compression chamber, an engaging screw member, an engaging screw kit, a fixing rod and a spherical bump. The inner cavity of the compressor body is provided with a screw cavity and a circulation storage cavity. The screw cavity is convex, and a compression chamber is arranged in the middle of the screw cavity. A plurality of spherical bumps are equidistantly arranged on the inner wall of the noise reduction kit. The spherical bumps increase the surface area of the inner wall of the noise reduction kit, so that the surface of the inner wall is corrugated, thereby making the reverse angle of the noise complicated, thereby disrupting the propagation path and reducing the noise.
[0006] Preferably, an air inlet cavity is provided at the top of the inner cavity of the screw, and the air inlet cavity is connected to an air inlet pipeline.
[0007] Preferably: a compression tube cavity is provided at the bottom of the inner cavity of the screw, and the right end of the compression tube cavity is connected to the circulation storage cavity, the circulation storage cavity is used for temporarily storing compressed gas, and a reflux air pump is installed at the upper end of the circulation storage cavity.
[0008] Preferably: the outer wall of the compression chamber and the inner wall of the screw cavity are fixedly connected by a plurality of fixing rods, a noise reduction kit is provided between the outer wall of the compression chamber and the inner wall of the screw cavity, and the noise reduction kit is arranged in the middle of the fixing rod.
[0009] Preferably: a partition cavity is formed between the outer wall surface of the noise reduction kit and the inner wall of the screw cavity to block the diffusion of noise. According to actual conditions, a corresponding noise reduction medium can be added to the partition cavity, such as a sound insulation panel made of a mixed material such as foam plastic, or an attraction cotton made of a corresponding high-density polyester limiter.
[0010] Preferably: an engaging screw member is movably installed on the rear middle side of the compression chamber, and a driving screw member is movably arranged on the front middle side of the compression chamber. The driving screw member is fixedly connected to the output shaft of the compressor driving device, and an engaging screw kit is installed on the upper limit of the driving screw member and the engaging screw member. The compressor driving device is used to drive the driving screw member and the engaging screw kit on the engaging screw member to engage and rotate, thereby compressing the gas entering into the screw cavity from the intake pipe cavity.
[0011] Technical effects and advantages of the utility model:
[0012] 1. When the utility model is used, the surface area of the inner wall of the noise reduction kit is increased by the spherical protrusions on the noise reduction kit, so that the surface of the inner wall is corrugated, so that the reverse angle of the noise becomes complicated, thereby disrupting the propagation path, and reducing the noise propagation efficiency formed by the friction between the meshing screw kit and the inner wall of the compression chamber and the mechanical damping, reducing the vibration generated during the operation of the compressor, thereby improving the operating stability of the equipment, and reducing noise and vibration can reduce the mechanical stress of the compressor during operation, thereby reducing the risk of equipment damage, which helps to extend the service life of the compressor and reduce equipment failures and maintenance costs caused by vibration.
[0013] 2. When the utility model is used, the partition chamber performs secondary blocking of the noise generated during the screw compression process, and the added noise reduction medium performs silencing treatment, thereby improving the working environment, reducing the impact of noise on employees or surrounding residents, and avoiding safety problems caused by excessive noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1It is a schematic diagram of the structure provided by this application;
[0015] Figure 2 It is a structural schematic diagram of the compressor unit provided by the present application;
[0016] Figure 3 It is a schematic diagram of the structure of the noise reduction kit provided by this application;
[0017] In the figure: 1. Compressor drive device; 2. Cooling parts; 3. Intake pump body; 4. Intake pipe; 5. Compressor unit;
[0018] 51. Compressor body; 52. Inlet pipe cavity; 53. Compression pipe cavity; 54. Reflux air pump; 55. Driving screw member; 56. Partition cavity; 57. Noise reduction kit; 58. Compression chamber; 59. Engaging screw member; 510. Engaging screw kit; 511. Fixed rod; 512. Spherical bump. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.
[0020] See also Figures 1 to 3 In this embodiment, a noise reduction screw refrigeration unit is provided, including a compressor driving device 1, a cooling component 2, an air intake pump body 3, an air intake pipe 4 and a compressor unit 5. The cooling component 2 is fixedly installed on the right side of the compressor driving device 1, and the compressor unit 5 is arranged on the right side of the cooling component 2. The compressor driving device 1 drives the screw in the compressor unit 5 to compress and rotate. The upper end of the compressor unit 5 is connected to the air intake pipe 4, and the other side of the air intake pipe 4 is connected to the air intake pump body 3. The air intake pump body 3 transports the intake gas through the air intake pipe 4 to the compressor unit 5 for gas compression;
[0021] The compressor unit 5 includes a compressor body 51, an air intake cavity 52, a compression cavity 53, a reflux air pump 54, a driving screw member 55, a partition cavity 56, a noise reduction kit 57, a compression chamber 58, an engaging screw member 59, an engaging screw kit 510, a fixing rod 511 and a spherical bump 512. The compressor body 51 has a screw cavity and a circulation storage cavity in its inner cavity. The top of the screw cavity has an air intake cavity 52, which is connected to the air intake pipe 4. The bottom of the screw cavity has a compression cavity 53, which is connected to the air intake pipe 4. The end cavity is connected to the circulation storage cavity, which is used for temporary storage of compressed gas. A reflux air pump 54 is installed at the upper end of the circulation storage cavity. The screw cavity is convex, and a compression chamber 58 is arranged in the middle of the screw cavity. The outer wall of the compression chamber 58 and the inner wall of the screw cavity are fixedly connected by a plurality of fixed rods 511. A noise reduction kit 57 is arranged between the outer wall of the compression chamber 58 and the inner wall of the screw cavity. The noise reduction kit 57 is arranged in the middle of the fixed rod 511, and a partition is formed between the outer wall of the noise reduction kit 57 and the inner wall of the screw cavity. The partition cavity 56 is used to block the diffusion of noise. According to the actual situation, a corresponding noise reduction medium can be added to the partition cavity 56, such as a sound insulation board made of a mixed material such as foam plastic, or a suction cotton made of a corresponding high-density polyester limiter. The meshing screw member 59 is movably installed on the rear side of the middle part of the compression chamber 58, and the driving screw member 55 is movably arranged on the front side of the middle part of the compression chamber 58. The driving screw member 55 is fixedly connected to the output shaft of the compressor driving device 1, and the driving screw member 55 and the meshing screw member 59 are connected to the upper limit. A meshing screw kit 510 is installed in the position, and the compressor driving device 1 is used to drive the driving screw member 55 to mesh and rotate with the meshing screw kit 510 on the meshing screw member 59, so as to compress the gas entering the screw cavity from the intake pipe cavity 52. A plurality of spherical bumps 512 are equidistantly arranged on the inner wall of the noise reduction kit 57. The spherical bumps 512 increase the surface area of the inner wall of the noise reduction kit 57, so that the surface of the inner wall is corrugated, thereby making the reverse angle of the noise complicated, thereby disrupting the propagation path and reducing the noise.
[0022] The working principle of the utility model is:
[0023] When the utility model is used, the surface area of the inner wall of the noise reduction kit 57 is increased by the spherical protrusion 512 on the noise reduction kit 57, so that the surface of the inner wall is corrugated, so that the reverse angle of the noise becomes complicated, thereby disrupting the propagation path, and the noise propagation efficiency formed by the friction between the meshing screw kit 510 and the inner wall of the compression chamber 58 and the mechanical damping is reduced, and the vibration generated when the compressor is running is reduced, thereby improving the operating stability of the equipment. At the same time, reducing noise and vibration can reduce the mechanical stress when the compressor is running, thereby reducing the risk of equipment damage, which helps to extend the service life of the compressor and reduce equipment failures and maintenance costs caused by vibration. Secondly, the partition chamber 56 performs secondary blocking for the noise generated during the screw compression process, and performs silencing treatment with the added noise reduction medium, thereby improving the working environment, reducing the impact of noise on employees or surrounding residents, and avoiding safety problems caused by excessive noise.
[0024] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.
Claims
1. A noise-reducing screw refrigeration unit, comprising a compressor drive device (1), a cooling element (2), an air intake pump body (3), an air intake pipe (4) and a compressor unit (5), characterized in that: A cooling device (2) is fixedly installed on the right side of the compressor driving device (1), and a compressor unit (5) is arranged on the right side of the cooling device (2). The compressor driving device (1) drives the screw in the compressor unit (5) to perform compression rotation. The upper end of the compressor unit (5) is connected to an air intake pipe (4), and the other side of the air intake pipe (4) is connected to an air intake pump body (3). The air intake pump body (3) transports the intake gas through the air intake pipe (4) to the compressor unit (5) for gas compression. The compressor unit (5) comprises a compressor body (51), an air intake pipe cavity (52), a compression pipe cavity (53), a reflux air pump (54), a driving screw member (55), a partition cavity (56), a noise reduction kit (57), a compression chamber (58), an engaging screw member (59), an engaging screw kit (510), a fixing rod (511) and a spherical bump (512). The inner cavity of the compressor body (51) is provided with a screw cavity and a circulation storage cavity. The screw cavity is convex, and a compression chamber (58) is provided in the middle of the screw cavity. A plurality of spherical bumps (512) are equidistantly provided on the inner wall of the noise reduction kit (57).
2. A noise reduction screw refrigeration unit according to claim 1, characterized in that: An air intake cavity (52) is provided at the top of the inner cavity of the screw, and the air intake cavity (52) is connected to the air intake pipeline (4).
3. A noise reduction screw refrigeration unit according to claim 1, characterized in that: A compression tube cavity (53) is provided at the bottom of the inner cavity of the screw, and the right end of the compression tube cavity (53) is connected to the circulation storage cavity. The circulation storage cavity is used for temporarily storing compressed gas, and a reflux air pump (54) is installed at the upper end of the circulation storage cavity.
4. A noise reduction screw refrigeration unit according to claim 1, characterized in that: The outer wall of the compression chamber (58) and the inner wall of the screw cavity are fixedly connected by a plurality of fixing rods (511), and a noise reduction kit (57) is provided between the outer wall of the compression chamber (58) and the inner wall of the screw cavity, and the noise reduction kit (57) is arranged in the middle of the fixing rod (511).
5. A noise reduction screw refrigeration unit according to claim 4, characterized in that: A partition cavity (56) is formed between the outer wall surface of the noise reduction kit (57) and the inner wall of the screw cavity, and the partition cavity (56) is used to block the diffusion of noise, and a corresponding noise reduction medium is added into the partition cavity (56).
6. A noise reduction screw refrigeration unit according to claim 5, characterized in that: An engaging screw member (59) is movably mounted on the rear middle side of the compression chamber (58), and a driving screw member (55) is movably mounted on the front middle side of the compression chamber (58). The driving screw member (55) is fixedly connected to the output shaft of the compressor driving device (1), and an engaging screw assembly (510) is mounted on the upper limit position of the driving screw member (55) and the engaging screw member (59).