CN115069190B - Mechanical sealing device for food reaction kettle - Google Patents
Mechanical sealing device for food reaction kettle Download PDFInfo
- Publication number
- CN115069190B CN115069190B CN202210886771.XA CN202210886771A CN115069190B CN 115069190 B CN115069190 B CN 115069190B CN 202210886771 A CN202210886771 A CN 202210886771A CN 115069190 B CN115069190 B CN 115069190B
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- kettle body
- contact surface
- supporting plate
- reaction kettle
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- 238000007789 sealing Methods 0.000 title claims abstract description 137
- 235000013305 food Nutrition 0.000 title claims abstract description 29
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 238000010907 mechanical stirring Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0073—Sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cookers (AREA)
- Commercial Cooking Devices (AREA)
Abstract
The application provides a mechanical sealing device for a food reaction kettle, which relates to the technical field of food processing and comprises a kettle body, wherein the kettle body is connected with a stirring shaft; the stirring shaft comprises a mounting part, a sealing part and a working part, wherein two ends of the mounting part are respectively connected with the sealing part and the working part, the other end of the mounting part is connected with a driving shaft, one end of the sealing part, which is far away from the mounting part, is provided with a sealing contact surface, and a sealing groove is arranged at the corresponding position of the kettle body and the sealing contact surface and is abutted against the inner wall of the sealing groove; the installation department is connected with the compression component, and compression component one end is connected with the driving piece and the other end is fixed in the installation department, and is provided with pressure sensor between compression component and the cauldron body, and pressure sensor is connected with the driving piece electricity. The application can solve the problem that the quality of food is reduced due to air leakage easily generated at the mechanical stirring installation position in the closed food processing reaction kettle in the prior art.
Description
Technical Field
The application relates to the technical field of food processing, in particular to a mechanical sealing device for a food reaction kettle.
Background
In modern food processing technology, a reaction kettle with a mechanical stirring device is generally used for carrying out the blending processing process of some foods.
Through retrieval, the application document with the publication number of CN202983680U discloses a food stirring reaction kettle, which comprises a kettle body, an electric mechanism, a stirring mechanism and a jacket, wherein the electric mechanism is positioned above the kettle body and is connected with the stirring mechanism, the stirring mechanism is positioned in the kettle body, the jacket is arranged outside the kettle body, and the stirring mechanism consists of a paddle stirrer which is coaxially arranged in the kettle body and is positioned at the center and a frame stirrer which is positioned at the periphery; the paddle stirrer consists of a central rotating shaft and at least one paddle stirring blade arranged on the central rotating shaft; the paddle stirring blades of the different layers are connected by a connecting belt; the frame stirrer consists of a frame body arranged along the inner cavity wall of the cylinder body and stirring blades arranged on the inner peripheral wall of the frame body, wherein the kettle body is divided into a kettle body upper part and a kettle body bottom, and the kettle body upper part and the kettle body bottom are connected by a flange plate.
In the food processing process, the interior of the kettle is vacuumized through the negative pressure device sometimes, and the condition that the kettle body and the stirring rotation connection parts in the technical scheme can generate a large amount of external air to enter the kettle in actual work occurs, so that the food processing quality is possibly reduced.
Disclosure of Invention
The application aims to provide a mechanical sealing device for a food reaction kettle, which can solve the problem that the quality of food is reduced due to air leakage easily generated at a mechanical stirring installation part in a sealed food processing reaction kettle in the prior art.
Embodiments of the present application are implemented as follows:
the embodiment of the application provides a mechanical sealing device for a food reaction kettle, which comprises a kettle body, wherein the kettle body is connected with a stirring shaft.
The stirring shaft comprises a mounting part, a sealing part and a working part, wherein two ends of the mounting part are respectively connected with the sealing part and the working part, the other end of the mounting part is connected with a driving shaft, one end of the sealing part, which is far away from the mounting part, is provided with a sealing contact surface, a sealing groove is formed in the corresponding position of the kettle body and the sealing contact surface, and the sealing contact surface is abutted against the inner wall of the sealing groove.
The installation part is connected with the compression assembly, and the one end of the compression assembly is connected with the driving piece and the other end is fixed on the installation part, and a pressure sensor is arranged between the compression assembly and the kettle body, and is electrically connected with the driving piece.
In some embodiments of the present application, the mounting portion is provided with an inner passage for injecting a sealing medium, the inner passage penetrates through the mounting portion and the sealing portion, and the inner passage extends from a connection portion of the mounting portion and the driving shaft to the sealing contact surface.
In some embodiments of the present application, the inner channel includes a main channel and a branch channel, the main channel is disposed in the mounting portion, the branch channel is plural, the plurality of branch channel inlets are all communicated with the main channel, and the plurality of branch channel outlets are uniformly distributed at intervals on the sealing contact surface.
In some embodiments of the present application, a protecting shell is disposed outside the kettle body, and the pressing component is movably connected in the protecting shell.
In some embodiments of the present application, the pressing assembly includes a support plate movably disposed in the protective housing, the support plate is connected to the free end of the driving member, and a bearing is disposed at a geometric center of the support plate, and the bearing is sleeved on the mounting portion.
In some embodiments of the present application, the shape of the support plate is adapted to the shape of the protection shell, the edge of the support plate contacts the inner wall of the protection shell, a plurality of sliding blocks are uniformly and alternately arranged on the edge of the support plate, a plurality of sliding grooves corresponding to the sliding blocks are formed on the inner wall of the protection shell, and the sliding blocks are in sliding fit with the sliding grooves.
In some embodiments of the present application, a connecting rod is movably inserted in the supporting plate, a limiting ring is disposed on a side of the connecting rod, which is close to the kettle body, a spring is sleeved on the connecting rod, two ends of the spring respectively abut against the limiting ring and the supporting plate, the pressure sensor is disposed at one end of the connecting rod, which is close to the kettle body, and the other end of the pressure sensor abuts against the kettle body.
In some embodiments of the present application, the driving shaft is hollow, the mounting portion is sleeved in the driving shaft, the outer wall of the mounting portion is provided with a bump, the inner wall of the driving shaft is provided with a groove, and the bump is in sliding fit with the groove.
In some embodiments of the present application, a hose is provided at one end of the mounting portion connected to the driving shaft, the hose being connected to the inner passage, and the other end of the hose extending outwardly along the driving shaft.
In some embodiments of the present application, sealing rings are provided on both inner and outer sides of the sealing contact surface, and both end sides of the sealing rings respectively abut against the kettle body and the sealing part.
Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:
(1) According to the application, through the mutual sliding connection of the sealing contact surface and the sealing groove, the longitudinal contact surface between the stirring device and the kettle body is changed into the transverse contact surface, and a layer of sealing layer is generated on the contact surface under the relative rotation friction action of the sealing part relative to the inner wall of the sealing groove, so that the sealing effect can be achieved on the rotation connection part of the stirring shaft and the kettle body to a certain extent, and the sealing property of the reaction kettle is improved.
(2) The pressing component can press the whole stirring shaft in real time through the pressure sensor, so that the sealing contact surface can always keep the contact effect of a certain pressure action range, and the sealing contact surface is prevented from being separated by the sealing groove due to shaking or other actions in the working process, so that the sealing effect is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present application.
Fig. 2 is an enlarged view of fig. 1 at a in accordance with an embodiment of the present application.
FIG. 3 is an enlarged view of the portion B of FIG. 1 according to an embodiment of the present application.
Icon: the device comprises a 1-kettle body, a 2-mounting part, a 3-sealing part, a 4-working part, a 5-driving shaft, a 6-sealing contact surface, a 7-sealing groove, an 8-driving piece, a 9-pressure sensor, a 10-main channel, an 11-branch channel, a 12-protective shell, a 13-supporting plate, a 14-bearing, a 15-sliding block, a 16-sliding groove, a 17-connecting rod, a 18-limiting ring, a 19-spring, a 20-lug, a 21-groove, a 22-hose and a 23-sealing ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the product of the present application is conventionally put when used, it is merely for convenience of describing the present application and simplifying the description, and it does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang" and the like, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, if "a plurality" occurs, it means at least 2.
In the description of the embodiments of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Examples
According to the embodiment of the application, as shown in fig. 1-3, a mechanical sealing device for a food reaction kettle is provided, and the mechanical sealing device comprises a kettle body 1, wherein the kettle body 1 is connected with a stirring shaft.
The stirring shaft comprises a mounting part 2, a sealing part 3 and a working part 4, wherein two ends of the mounting part 2 are respectively connected with the sealing part 3 and the working part 4, the other end of the mounting part 2 is connected with a driving shaft 5, one end, far away from the mounting part 2, of the sealing part 3 is provided with a sealing contact surface 6, a sealing groove 7 is formed in a position, corresponding to the sealing contact surface 6, of the kettle body 1, and the sealing contact surface 6 is abutted against the inner wall of the sealing groove 7.
The installation department 2 is connected with the hold-down subassembly, and above-mentioned hold-down subassembly one end is connected with driving piece 8 and the other end is fixed in installation department 2, and above-mentioned hold-down subassembly is provided with pressure sensor 9 with the cauldron body 1 spare, and above-mentioned pressure sensor 9 is connected with driving piece 8 electricity.
Specifically, the upper end of the stirring shaft is movably connected to the driving shaft 5, that is, the stirring shaft can move linearly in the length direction relative to the driving shaft 5, but the stirring shaft cannot rotate relative to the driving shaft 5, so that the driving effect of the driving shaft 5 on the stirring shaft cannot be affected when the pressing assembly drives the mounting portion 2 and drives the whole stirring shaft to displace vertically in the axial direction.
More specifically, the driving shaft 5 is hollow, the mounting portion 2 is sleeved in the driving shaft 5, the outer wall of the mounting portion 2 is provided with a protrusion 20, the inner wall of the driving shaft 5 is provided with a groove 21, and the protrusion 20 is slidably engaged with the groove 21.
In actual operation, the driving shaft 5 is driven by the driving motor to rotate, and the protruding block 20 is in sliding fit connection with the groove 21, so that the driving shaft 5 drives the mounting portion 2 to rotate, and in actual sense, the mounting portion 2, the sealing portion 3 and the working portion 4 are integrally connected, so that the driving shaft 5 drives the sealing contact surface 6 and the sealing groove 7 to slide relatively, thereby generating a sealing effect.
It should be noted that, the surfaces of the seal contact surface 6 and the seal groove 7 are both smooth, so that the seal contact surface 6 rotates under the action of the driving shaft 5 while the seal groove 7 abuts against under the action of the pressing assembly, and the tightness between the seal contact surface 6 and the seal groove 7 is greatly improved due to relative sliding friction.
It should be noted that the mounting portion 2 is provided with an inner passage for injecting a sealing medium, the inner passage penetrates through the mounting portion 2 and the sealing portion 3, and the inner passage extends from a connection portion between the mounting portion 2 and the driving shaft 5 to the sealing contact surface 6.
The pressure injection device is connected to the outside of the inner channel, and the pressure injection device with multiple outer walls can inject sealing medium into the sealing contact surface 6 through the inner channel, so that the sealing medium can assist in forming a layer of sealing film on the sealing contact surface 6 and the contact surface of the inner wall of the sealing groove 7 in the process of sliding the sealing contact surface 6 relative to the sealing groove 7, and the sealing film can effectively form an effective blocking effect on air flow and other fluids inside and outside the kettle.
It should be noted that the inner channel includes a main channel 10 and a branch channel 11, the main channel 10 is disposed in the mounting portion 2, the plurality of branch channels 11 are provided, the inlets of the plurality of branch channels 11 are all communicated with the main channel 10, and the outlets of the plurality of branch channels 11 are uniformly distributed at intervals on the sealing contact surface 6.
The arrangement of the plurality of branched passages 11 effectively allows the sealing medium to more rapidly and uniformly enter the contact portion between the seal contact surface 6 and the seal groove 7, and a stable sealing film can be rapidly formed.
It should be noted that, the flow rate of the sealing medium injected into the branch pipe is smaller, so that the sealing film cannot be uniformly and stably formed due to the larger flow rate of the sealing medium in the process of sliding the sealing contact surface 6 and the sealing groove 7, and more sealing medium possibly enters the kettle through the connection gap between the working part 4 and the kettle body 1, and the pollution to the food raw material in the kettle which is being processed is possibly generated, thereby reducing the quality of the food.
The sealing medium may be mainly sealing oil, and the sealing oil may enter a contact portion between the sealing contact surface 6 and the sealing groove 7, so that a stable sealing film may be formed rapidly, and at the same time, when the sealing contact surface 6 and the sealing groove 7 slide relatively, sliding friction force may be reduced, and stability may be ensured.
More specifically, the outer side of the kettle body 1 is provided with a protecting shell 12, and the pressing component is movably connected in the protecting shell 12.
The protecting shell 12 is fixed outside the kettle body 1 in a bolt connection or welding mode, the protecting shell 12 can support and take the effect of a whole compacting component, the effect of preventing some solid particle impurities from entering can be further achieved at the connecting part of the stirring shaft and the kettle body 1, meanwhile, the protecting shell 12 can play a guiding role for the compacting component, the compacting component can move in a reasonable direction in the compacting process, and the stability of the application is improved.
The pressing assembly comprises a supporting plate 13 movably arranged in the protective shell 12, the supporting plate 13 is connected with the free end of the driving piece 8, a bearing 14 is arranged at the geometric center position of the supporting plate 13, and the bearing 14 is sleeved on the mounting part 2.
The outer wall of the bearing 14 is connected with the supporting plate 13, and the inner wall of the bearing 14 is connected with the outer wall of the mounting part 2, so that when the mounting part 2 rotates, the bearing 14 converts sliding friction force between the mounting part 2 and the supporting plate 13 into rolling friction force, the stability of relative rotation can be improved, and the supporting plate 13 is ensured not to be blocked for the rotation action of the whole stirring shaft when the supporting plate 13 moves linearly under the driving action of the driving piece 8, so that the stability of the application is improved.
The supporting plate 13 is perpendicular to the protecting shell 12, the protecting shell 12 moves in the protecting shell 12 under the action of the driving member 8, the driving shaft 5 directly passes through the protecting shell 12 to be connected with the mounting portion 2, and a sealing piece is arranged at the joint of the driving shaft 5 and the mounting portion 2, so that the sealing performance of the protecting shell 12 is ensured.
It should be noted that, the shape of the supporting plate 13 is adapted to the shape of the protecting shell 12, the edge of the supporting plate 13 contacts the inner wall of the protecting shell 12, a plurality of sliding blocks 15 are uniformly arranged at intervals on the edge of the supporting plate 13, a plurality of sliding grooves 16 corresponding to the sliding blocks 15 are formed on the inner wall of the protecting shell 12, and the sliding blocks 15 are slidably matched with the sliding grooves 16.
The sliding connection between the sliding block 15 and the sliding slot 16 can more effectively prevent the supporting plate 13 from rotating relative to the protecting shell 12, so as to ensure the moving stability of the supporting plate 13.
The driving member 8 is a hydraulic driving system, and the hydraulic driving system includes a hydraulic pump, an oil tank, a hydraulic cylinder, various hydraulic oil paths, valves and meters, wherein a hydraulic oil rod is connected to the hydraulic cylinder, a hydraulic piston is disposed at one end of the hydraulic oil rod in the hydraulic cylinder, and under the action of the hydraulic pump, the free end of the hydraulic oil rod is connected to the support plate 13 and drives the support plate 13 to move.
And the pressure sensor 9 is electrically connected with the hydraulic pump, and the opening and closing of the hydraulic pump is controlled by converting a pressure signal sensed by the pressure sensor 9 into an electric signal, so that the free end of the hydraulic rod drives the supporting plate 13 to move.
And the connecting rod 17 is movably inserted in the supporting plate 13, a limit ring 18 is arranged on one side, close to the kettle body 1, of the connecting rod 17, a spring 19 is sleeved on the connecting rod 17, two ends of the spring 19 respectively abut against the limit ring 18 and the supporting plate 13, the pressure sensor 9 is arranged at one end, close to the kettle body 1, of the connecting rod 17, and the other end of the pressure sensor 9 abuts against the kettle body 1.
Specifically, the connecting rod 17 mainly can ensure that the spring 19 does not deviate or skew under the action of the supporting plate 13, so that when the relative acting force generated by the spring 19 acts on the pressure sensor 9, the acting force changes to cause a larger error in the pressure of the supporting plate 13 sensed by the pressure sensor 9, so that the driving piece 8 cannot normally adjust the supporting plate 13 in real time, the acting force between the sealing contact surface 6 and the sealing groove 7 is in a non-optimal range, and the sealing effect may be reduced.
In the actual process, the distance between the supporting plate 13 and the sealing contact surface 6 is always kept stable, so that the pressure between the sealing contact surface 6 and the inner wall of the sealing groove 7 can be determined through the pressure change between the supporting plate 13 and the kettle body 1. When the pressure value between the sealing contact surface 6 and the inner wall of the sealing groove 7 is out of the normal range, the pressure between the pressure sensor 9 and the kettle body 1 is out of the normal range correspondingly, the pressure sensor 9 sends corresponding electric signals to the hydraulic pump, and further the opening and closing of the hydraulic pump is controlled to control the lifting of the supporting plate 13.
It is noted that the pressure sensor 9 may be a piezoresistive pressure sensor 9 in the prior art, and the piezoresistive sensor is a sensor made by using the piezoresistive effect of a crystal. When it is subjected to pressure, the resistance of the strain element changes, thereby changing the output voltage. The hydraulic pump can be correspondingly controlled through the change of different output voltages, so that the real-time control of the pressure between the sealing contact surface 6 and the inner wall of the sealing groove 7 is realized.
In order to further improve the sealing property of the present application, the sealing portion 3 is provided with a sealing ring 23, and both end sides of the sealing ring 23 are respectively abutted against the tank 1 and the sealing portion 3.
The number of the seal rings 23 may be plural, the seal rings 23 may be uniformly sleeved on the seal portion 3, the tank body 1 may be provided with a receiving groove at a position corresponding to the seal portion, the seal rings 23 may be disposed in the receiving groove, and when the seal portion 3 rotates, the inner wall of the seal ring 23 may slide relative to the outer wall of the seal portion 3.
The seal ring 23 may be made of a polymer rubber material having excellent physical properties such as high elasticity, wear resistance, heat resistance, etc., so that the seal ring 23 can further seal the junction between the seal portion 3 and the tank body 1.
One end of the mounting part 2 connected with the driving shaft 5 is provided with a hose 22, the hose 22 is communicated with the inner channel, the other end of the hose 22 extends outwards along the driving shaft 5, and the hose 22 is externally connected with a sealing medium injection device to realize real-time injection of the sealing medium. .
The working principle of the embodiment is as follows:
in a normal operation state, the driving shaft 5 drives the mounting portion 2 to rotate, and the mounting portion 2, the sealing portion 3 and the working portion 4 are integrally connected, so that the driving shaft 5 drives the sealing contact surface 6 to slide relatively with the sealing groove 7, and in the process of sliding the sealing contact surface 6 relatively with the sealing groove 7, the branch 11 continuously supplies the sealing medium to the sealing contact surface 6, so that a stable sealing film is formed between the sealing contact surface 6 and the sealing groove 7.
In the case where the pressure between the seal contact surface 6 and the seal groove 7 is reduced or separated from each other due to the fluctuation of the external environment, the pressure between the seal contact surface 6 and the inner wall of the seal groove 7 can be determined by the pressure change between the support plate 13 and the tank body 1 because the distance between the support plate 13 and the seal contact surface 6 is always kept constant. When the pressure value between the sealing contact surface 6 and the inner wall of the sealing groove 7 is out of the normal range, the pressure between the pressure sensor 9 and the kettle body 1 is out of the normal range correspondingly, the pressure sensor 9 sends corresponding electric signals to the hydraulic pump, and further the opening and closing of the hydraulic pump is controlled to control the lifting of the supporting plate 13 so as to enable the sealing contact surface 6 to fully contact with the sealing groove 7 again, so that the sealing effect of the application is always kept good.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. The mechanical sealing device for the food reaction kettle is characterized by comprising a kettle body, wherein the kettle body is connected with a stirring shaft;
the stirring shaft comprises a mounting part, a sealing part and a working part, wherein two ends of the mounting part are respectively connected with the sealing part and the working part, the other end of the mounting part is connected with a driving shaft, one end of the sealing part, which is far away from the mounting part, is provided with a sealing contact surface, a sealing groove is formed in the position, corresponding to the sealing contact surface, of the kettle body, and the sealing contact surface is abutted against the inner wall of the sealing groove;
the installation part is connected with a pressing component, one end of the pressing component is connected with a driving piece, the other end of the pressing component is fixed on the installation part, a pressure sensor is arranged between the pressing component and the kettle body, and the pressure sensor is electrically connected with the driving piece;
an inner channel for injecting sealing medium is formed in the mounting part, the inner channel penetrates through the mounting part and the sealing part, and the inner channel extends from the joint of the mounting part and the driving shaft to the sealing contact surface.
2. The mechanical sealing device for a food reaction kettle according to claim 1, wherein the inner channel comprises a main channel and a branch channel, the main channel is arranged in the mounting part, the number of the branch channels is multiple, the plurality of the branch channel inlets are communicated with the main channel, and the plurality of the branch channel outlets are uniformly distributed on the sealing contact surface at intervals.
3. The mechanical seal device for a food reaction kettle according to claim 1, wherein a protecting shell is arranged on the outer side of the kettle body, and the pressing component is movably connected with the protecting shell.
4. The mechanical seal device for a food reaction kettle according to claim 3, wherein the pressing assembly comprises a supporting plate movably arranged in the protective shell, the supporting plate is connected with the free end of the driving piece, a bearing is arranged at the geometric center position of the supporting plate, and the bearing is sleeved on the mounting part.
5. The mechanical sealing device for a food reaction kettle according to claim 4, wherein the shape of the supporting plate is matched with that of the protecting shell, the edge of the supporting plate contacts the inner wall of the protecting shell, a plurality of sliding blocks are uniformly arranged at intervals on the edge of the supporting plate, a plurality of sliding grooves corresponding to the sliding blocks are formed in the inner wall of the protecting shell, and the sliding blocks are in sliding fit with the sliding grooves.
6. The mechanical sealing device for a food reaction kettle according to claim 5, wherein a connecting rod is movably inserted in the supporting plate, a limiting ring is arranged on one side, close to the kettle body, of the connecting rod, a spring is sleeved on the connecting rod, two ends of the spring are respectively abutted to the limiting ring and the supporting plate, the pressure sensor is arranged at one end, close to the kettle body, of the connecting rod, and the other end of the pressure sensor is abutted to the kettle body.
7. The mechanical seal device for a food reaction kettle according to claim 1, wherein the driving shaft is hollow, the mounting portion is sleeved in the driving shaft, a protruding block is arranged on the outer wall of the mounting portion, a groove is formed in the inner wall of the driving shaft, and the protruding block is in sliding fit with the groove.
8. The mechanical seal device for a food reaction kettle according to claim 7, wherein a hose is provided at one end of the mounting portion connected to the driving shaft, the hose is communicated with the inner passage, and the other end of the hose extends in the direction of the driving shaft.
9. The mechanical seal device for a food reaction kettle according to claim 1, wherein the seal portion is provided with a seal ring, and both end sides of the seal ring are respectively abutted against the kettle body and the seal portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210886771.XA CN115069190B (en) | 2022-07-26 | 2022-07-26 | Mechanical sealing device for food reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210886771.XA CN115069190B (en) | 2022-07-26 | 2022-07-26 | Mechanical sealing device for food reaction kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115069190A CN115069190A (en) | 2022-09-20 |
| CN115069190B true CN115069190B (en) | 2023-11-24 |
Family
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| CN118059800B (en) * | 2024-04-25 | 2024-07-19 | 安徽省清析检测技术有限公司 | Rubber repair adhesive preparation device and preparation method thereof |
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| CN210978533U (en) * | 2019-11-20 | 2020-07-10 | 陕西煤业化工集团神木天元化工有限公司 | Automatic pressing type rotary sealing structure |
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| CN114452918A (en) * | 2020-11-10 | 2022-05-10 | 苏州鸿云瑞钛设备有限公司 | Shaft seal device suitable for stirring shaft of ultrahigh pressure reaction kettle |
| CN114636512A (en) * | 2020-12-15 | 2022-06-17 | 浙江三花汽车零部件有限公司 | Sensor assembly and valve device |
| CN114705346A (en) * | 2022-03-01 | 2022-07-05 | 廖孝君 | Waterproof pressure sensor |
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| EP2470069A1 (en) * | 2009-08-28 | 2012-07-04 | Hyb D.O.O. | Pressure transducer for medical use and contact holder |
| CN205032166U (en) * | 2015-08-22 | 2016-02-17 | 王桂林 | Sealed powerful quick reation kettle |
| KR20170040478A (en) * | 2015-10-05 | 2017-04-13 | 한국수력원자력 주식회사 | Apparatus for life evaluation test of pump mechanical seal and its method |
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| CN114705346A (en) * | 2022-03-01 | 2022-07-05 | 廖孝君 | Waterproof pressure sensor |
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| CN115069190A (en) | 2022-09-20 |
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