Self-cooling homogenizing head
Through the self-cooling homogenizer design, the problem of mechanical seal overheating of the homogenizer head under high load is solved by using cooling media and turbulent parts, and the temperature stability of the mechanical seal and the safety of the equipment are improved.
Patent Information
- Application Number
- CN202422581522.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The bearings and mechanical seals are prone to overheating after long operation of existing homogenized heads, resulting in a shortened service life and a safety risk.
The self-cooling design is adopted, and the cooling medium flows through the rotating bearing and mechanical sealing, and the hollow cooling part is used to take away heat, and a turbulent flow generator is installed in the cooling part to increase the flow rate to speed up heat transfer.
Keep the mechanical sealing temperature stable, extend the service life, avoid damage to mechanical seals at high temperatures, and improve equipment safety.
Smart Images
Figure CN223249132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of homogenization, in particular to a self-cooling homogenizing head. Background Art
[0002] Homogenizers are primarily used for tissue dispersion in the biotechnology field, sample preparation in the pharmaceutical field, enzyme processing in the food industry, and detection of pesticide and veterinary drug residues in food. They are also used in the pharmaceutical, cosmetic, paint, and petrochemical industries. In the cosmetics industry, when preparing emulsion cosmetics, after the various raw materials are initially mixed, a homogenizer can be used to break up and thoroughly mix the raw materials, ultimately emulsifying them to form a uniform emulsion cosmetic.
[0003] Before mass production of emulsion cosmetics begins, samples must be broken up and mixed in a laboratory using a small, experimental homogenizer to simulate and test whether the cosmetics produced with the raw material ratio can achieve the expected quality. Existing homogenizers typically consist of a device support, a clamping component fixed to the bottom of the device support, and a homogenizer body that slides vertically on the device support. During testing, a container containing the sample is secured to the clamping component, and the height of the homogenizer body on the device support is adjusted so that the homogenizing head of the homogenizer body enters the container. Starting the homogenizer body breaks up and mixes the sample, thereby producing a uniform emulsion cosmetic.
[0004] The ability of a homogenizer to overcome surface tension and generate work is key to its mixing performance. Different rotational speeds produce vastly different results. Therefore, homogenizers must operate under high load for extended periods. Rotating components such as bearings and seals generate significant heat, causing rapid temperature increases. Exposing these components to high temperatures for extended periods degrades their performance and shortens their service life. Furthermore, thermal expansion and contraction can cause deformation in the bearings, posing significant risks to personnel and equipment safety during operation. Therefore, cooling the bearings and seals within the homogenizer is crucial. Utility Model Content
[0005] In order to overcome the problem in the prior art that the homogenizing head is prone to overheating of the bearings and mechanical seals when running for a long time, the utility model provides a self-cooling homogenizing head, which takes away the heat of the rotating bearings and mechanical seals by flowing a cooling medium through the rotating bearings and mechanical seals, thereby ensuring that the operating temperature of the rotating bearings and mechanical seals remains stable; at the same time, a turbulence generating element is provided in the cooling part. When the cooling medium flows through the turbulence generating element, it will enter a turbulent state and obtain a higher flow speed, thereby accelerating the heat transfer speed accordingly, and the turbulence generating element requires a small space and can be installed in a compact space.
[0006] The utility model adopts the following technical solutions.
[0007] A self-cooling homogenizing head comprises a connecting seat, a rotating shaft rotatably connected to the connecting seat, a rotor connected to the bottom end of the rotating shaft, a stator sleeved on the outside of the rotor provided at the bottom end of the connecting seat, and a mechanical seal structure provided between the rotating shaft and the connecting seat;
[0008] The mechanical sealing structure includes a first sealing sleeve, a second sealing sleeve, and an elastic member that pushes the first sealing sleeve to axially press the second sealing sleeve. The first sealing sleeve and the second sealing sleeve are both made of corrosion-resistant non-metallic material.
[0009] A hollow cooling portion is provided in the connecting seat, and the hollow cooling portion is used for allowing a cooling medium to pass through so as to contact the outer side walls of the first sealing sleeve and the second sealing sleeve.
[0010] Preferably, the connecting seat includes a cylinder sleeved on the outside of the rotating shaft, and a flange provided at the bottom end of the cylinder, and the flange is penetrated by a through hole for the cooling medium to pass through.
[0011] Preferably, the first sealing sleeve is fixed in the connecting seat by a pin.
[0012] Preferably, the elastic member is a compression spring.
[0013] Preferably, a sealing seat is provided on the rotating shaft, and an accommodating cavity for accommodating the elastic member and the second sealing sleeve is opened on the sealing seat.
[0014] Preferably, a first rubber sealing ring is provided between the outer wall of the first sealing sleeve and the connecting seat, and a second rubber sealing ring is provided between the inner wall of the second sealing ring and the rotating shaft.
[0015] Preferably, the first sealing sleeve and the second sealing sleeve are made of silicon carbide.
[0016] The beneficial effects of the utility model are:
[0017] The utility model provides a self-cooling homogenizing head, which satisfies the requirement that the temperature of rotating components such as mechanical seals remain stable when the homogenizing head is operated for a long time under high load. By providing a cooling portion within the fixed seat, and providing a hollow cooling portion within the cooling portion, the cooling medium can contact the surface of the mechanical seal, removing heat from the mechanical seal, so that the temperature of the mechanical seal remains stable. When the mechanical seal is in operation for a long time, its performance is maintained, and damage to the mechanical seal caused by excessive temperature during long-term high-load operation is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 This is a schematic diagram of the structure of use of an embodiment of the utility model;
[0020] Figure 2 for Figure 1 Magnified view of part A.
[0021] Description of reference numerals:
[0022] 1. Connecting seat; 11. Hollow cooling part; 12. Cylinder; 121. Flange; 1211. Through hole; 13. Pin; 2. Rotating shaft; 21. Rotor; 22. Sealing seat; 221. Accommodating chamber; 3. Stator; 41. First sealing sleeve; 411. First rubber sealing ring; 42. Second sealing sleeve; 421. Second rubber sealing ring; 43. Elastic member; 5. Transmission cylinder. DETAILED DESCRIPTION
[0023] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.
[0024] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0025] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0026] As attached Figure 1-2 The self-cooling homogenizing head shown includes a connecting base 1, a rotating shaft 2 is rotatably connected inside the connecting base 1, the bottom end of the rotating shaft 2 is connected to a rotor 21, the bottom end of the connecting base 1 is provided with a stator 3 that is sleeved on the outside of the rotor, and a mechanical sealing structure is provided between the rotating shaft 2 and the connecting base 1.
[0027] The mechanical sealing structure includes a first sealing sleeve 41, a second sealing sleeve 42 and an elastic member that pushes the first sealing sleeve shaft 41 to press the second sealing sleeve 42. The first sealing sleeve 41 and the second sealing sleeve 42 are both made of corrosion-resistant non-metallic materials.
[0028] The connecting base 1 is provided with a hollow cooling portion 11 , which is used to allow a cooling medium to pass through the hollow cooling portion 11 so as to contact the outer side walls of the first sealing sleeve 41 and the second sealing sleeve 42 .
[0029] In some embodiments, the connecting base 1 includes a cylinder 12 sleeved on the outside of the rotating shaft 2, and a flange 121 provided at the bottom end of the cylinder 12. The flange 121 is penetrated by a through hole 1211 for the cooling medium to pass through.
[0030] In some embodiments, the first sealing sleeve 41 is fixed in the connecting base 1 by a pin 13 .
[0031] In some embodiments, the elastic member 43 is a compression spring.
[0032] In some embodiments, a sealing seat 22 is provided on the rotating shaft 2 , and an accommodating cavity 221 for accommodating the elastic member 43 and the second sealing sleeve 42 is defined on the sealing seat 22 .
[0033] In some embodiments, a first rubber sealing ring 411 is provided between the outer wall of the first sealing sleeve 41 and the connecting seat 1 , and a second rubber sealing ring 421 is provided between the inner wall of the second sealing ring 42 and the rotating shaft 2 .
[0034] In some embodiments, the first sealing sleeve 41 and the second sealing sleeve 42 are made of silicon carbide.
[0035] The working principle of this utility model is as follows:
[0036] The homogenizing tank is filled with material, the rotating shaft 2 is connected to the first motor through a transmission, and the connecting base 1 is connected to the second motor through a transmission cylinder 5. The transmission cylinder 5 is rotatably mounted on the outer side of the rotating shaft 2. During operation, the connecting base 1 and the rotating shaft 2 rotate in opposite directions. The first sealing sleeve 41 in the mechanical seal structure is tightly attached to the second sealing sleeve 42. A first rubber sealing ring 411 is provided between the outer wall of the first sealing sleeve 41 and the connecting base 1, and a second rubber sealing ring 421 is provided between the inner wall of the second sealing ring 42 and the rotating shaft 2, thereby preventing the material in the homogenizing tank from invading the gap between the rotating shaft 2 and the transmission cylinder 5. During the stirring process, part of the material will pass through the through hole 1211 and be squeezed into the hollow cooling portion 11, and then flow through the mechanical seal structure. In this way, the material is used as a cooling medium, so that the material flowing through the mechanical seal structure removes heat from the contact surface between the first sealing sleeve 41 and the second sealing sleeve 42, preventing the first sealing sleeve 41 and the second sealing sleeve 42 from being damaged due to frictional overheating.
[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A self-cooling homogenizing head, comprising a connecting seat, a rotating shaft rotatably connected to the connecting seat, a rotor connected to the bottom end of the rotating shaft, and a stator sleeved on the outside of the rotor at the bottom end of the connecting seat, characterized in that: A mechanical sealing structure is provided between the rotating shaft and the connecting seat; The mechanical sealing structure includes a first sealing sleeve, a second sealing sleeve, and an elastic member that pushes the first sealing sleeve to axially press the second sealing sleeve. The first sealing sleeve and the second sealing sleeve are both made of corrosion-resistant non-metallic material. A hollow cooling portion is provided in the connecting seat, and the hollow cooling portion is used for allowing a cooling medium to pass through so as to contact the outer side walls of the first sealing sleeve and the second sealing sleeve.
2. A self-cooling homogenizing head according to claim 1, characterized in that: The connecting seat includes a cylinder sleeved on the outside of the rotating shaft and a flange plate arranged at the bottom end of the cylinder. The flange plate is penetrated by a through hole for the cooling medium to pass through.
3. A self-cooling homogenizing head according to claim 1, characterized in that: The first sealing sleeve is fixed in the connecting seat by pins.
4. A self-cooling homogenizing head according to claim 1, characterized in that: The elastic member is a compression spring.
5. A self-cooling homogenizing head according to claim 1, characterized in that: The rotating shaft is provided with a sealing seat, and the sealing seat is provided with an accommodating cavity for accommodating the elastic member and the second sealing sleeve.
6. A self-cooling homogenizing head according to claim 1, characterized in that: A first rubber sealing ring is provided between the outer wall of the first sealing sleeve and the connecting seat, and a second rubber sealing ring is provided between the inner wall of the second sealing sleeve and the rotating shaft.
7. A self-cooling homogenizing head according to claim 1, characterized in that: The first sealing sleeve and the second sealing sleeve are made of silicon carbide.