CN113531904B

CN113531904B - Cavitation heat supply device

Info

Publication number: CN113531904B
Application number: CN202110853746.7A
Authority: CN
Inventors: 李勋锋; 淮秀兰; 成克用; 许闽; 刘斌
Original assignee: Institute of Engineering Thermophysics of CAS
Current assignee: Institute of Engineering Thermophysics of CAS
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-06-10
Anticipated expiration: 2041-07-27
Also published as: CN113531904A

Abstract

The present disclosure provides a cavitation heat supply apparatus, including: a power module for outputting torque; the pump body is connected with the power module and is used for inputting and outputting a heat supply medium; the driven shaft is fixedly connected with an output shaft of the power module; the centrifugal wheel is coaxially and fixedly connected with the driven shaft and used for generating centrifugal force and outputting the heat supply medium from the inner pipeline through the centrifugal force; the cavitation structure is sleeved on the driven shaft and fixed in the cavity structure of the pump body; the cavitation structure is adjacent to the second end surface of the centrifugal wheel; the cavitation structure is provided with a cavitation hole, and the cavitation hole is used for outputting the heat supply medium output by the pipeline to the cavity structure of the pump body; the baffle is sleeved on the outer diameter of the first end face of the centrifugal wheel and is fixed in the cavity structure of the pump body. The cavitation heat supply device can generate the cavitation effect inside and heat a heat supply medium, the generated heat is high, the operation is not influenced by the environment temperature, no emission and no pollution are caused, and the device has small heat loss and high heat supply efficiency.

Description

Cavitation heat supply device

Technical Field

The present disclosure relates to the field of heat supply technologies, and in particular, to a cavitation heat supply device.

Background

When liquid flows through a channel with a special structure, cavitation effect can be generated due to sharp reduction and rapid recovery of pressure, high temperature, high pressure and impact jet flow of hundreds of meters per second are locally generated, various cavitation effects are generated, such as mechanical shearing and disturbance effect, thermal effect, chemical effect and the like, and fluid can be heated by utilizing the cavitation effect and used for heating or providing domestic hot water.

The related technology shows that the existence of the cavitation effect can effectively inhibit the scaling process of the high-temperature hot water and can effectively degrade microorganisms and sterilize. Therefore, the cavitation effect is utilized to provide high-temperature hot water, and the method has certain advantages compared with the conventional modes of heating by an electric boiler, heating by a fuel boiler and the like, for example: the cavitation effect heating device can be miniaturized, is convenient and flexible to use, is suitable for distributed heating, is not influenced by the environmental temperature in the operation process, has no emission and pollution, is not easy to scale in pipelines, and the like. At present, although relevant cavitation heat supply devices are available, the problems of large heat loss, low heat supply efficiency, low cavitation strength and the like generally exist.

Disclosure of Invention

Technical problem to be solved

The present disclosure proposes a cavitation heat supply apparatus to at least solve the problems existing in the above-mentioned prior art.

(II) technical scheme

In order to achieve the above object, the present disclosure provides a cavitation heat supply apparatus, including:

the power module is used for outputting torque through an output shaft of the power module;

the pump body is connected with the power module and has a closed cavity structure, the pump body comprises a liquid return port and a liquid outlet, the liquid return port is used for inputting a heat supply medium of the cavitation heat supply device, and the liquid outlet is used for discharging the heat supply medium of the cavitation heat supply device;

the driven shaft is fixedly connected with the output shaft of the power module, and two ends of the driven shaft are rotationally fixed in the pump body;

the centrifugal wheel is coaxially and fixedly connected with the driven shaft, a pipeline is arranged in the centrifugal wheel, an inlet of the pipeline is positioned on the first end face of the centrifugal wheel, and an outlet of the pipeline is positioned on the side wall of the centrifugal wheel; the centrifugal wheel is used for generating centrifugal force and outputting the heat supply medium from the pipeline through the centrifugal force;

the cavitation structure is sleeved on the driven shaft and is fixed in the cavity structure of the pump body; the cavitation structure is adjacent to a second end face of the centrifugal wheel, wherein the second end face of the centrifugal wheel is a face opposite to the first end face of the centrifugal wheel; the cavitation structure is provided with a cavitation hole, and the cavitation hole is used for outputting the heat supply medium output by the pipeline to the cavity structure of the pump body;

the baffle is sleeved on the outer diameter of the first end face of the centrifugal wheel and fixed in the cavity structure of the pump body.

In some embodiments of the present disclosure, the cavitation structure comprises:

the center of the cavitation plate is provided with a through hole, the cavitation plate is sleeved on the driven shaft through the through hole, the edge of the cavitation plate is provided with a mounting hole, and the first end face of the cavitation plate is adjacent to the second end face of the centrifugal wheel;

the cavitation sleeve is internally provided with the cavitation holes, the diameters of the two end parts of each cavitation hole are larger than the diameter of the middle part of each cavitation hole, and the cavitation sleeve is fixedly connected to the mounting hole.

In some embodiments of the present disclosure, the cavitation sleeve being secured to the mounting hole comprises:

one end face of the cavitation sleeve is flush with the first end face of the cavitation plate, and the other end face of the cavitation sleeve is protruded out of the second end face of the cavitation plate; wherein the second end face of the cavitation plate is opposite the first end face of the cavitation plate.

the center of the cavitation plate is provided with a via hole, the cavitation plate is sleeved on the driven shaft through the via hole, the edge of the cavitation plate is provided with a cavitation hole, and the diameters of the two end parts of the cavitation hole are larger than the diameter of the middle part of the cavitation hole.

In some embodiments of the present disclosure, the cavitation heat supply apparatus further includes:

the first rotary sealing structure is fixed on the via hole of the cavitation structure and is in rotary connection with the driven shaft, and the first rotary sealing structure is used for sealing a gap between the cavitation structure and the driven shaft;

and the second rotary sealing structure is fixed on the cavity structure of the pump body and is in rotary connection with the centrifugal wheel, and the second rotary sealing structure is used for sealing a gap between the baffle and the centrifugal wheel.

The cavitation heat supply device of this disclosure still includes:

and the heat supply area comprises a liquid return pipeline and a liquid outlet pipeline, the heat supply area is connected with the liquid return port and the liquid outlet of the pump body respectively through the liquid return pipeline and the liquid outlet pipeline, and the heat supply area is used for introducing the heat supply medium to supply heat to the outside and inputting the heat supply medium after supplying heat to the outside to the liquid return port of the pump body.

In some embodiments of the present disclosure, the liquid return pipeline is provided with a branch liquid outlet and a branch liquid return port, and a distance between the branch liquid outlet and the heat supply area is smaller than a distance between the branch liquid return port and the heat supply area.

In some embodiments of the present disclosure, the power module comprises:

a motor;

and the water cooling jacket is coated on the motor and used for dissipating heat of the motor.

In some embodiments of the present disclosure, the water jacket comprises: the liquid outlet device comprises a first branch pipeline and a second branch pipeline, wherein the first branch pipeline is connected with the branch liquid outlet, and the second branch pipeline is connected with the branch liquid return port.

The cavitation heat supply device of this disclosure still includes:

and the heat-insulating layer is coated on the water cooling sleeve and the pump body.

(III) advantageous effects

According to the technical scheme, the cavitation heat supply device disclosed by the invention has at least one or part of the following beneficial effects:

(1) the cavitation heat supply device disclosed by the disclosure has the advantages that through the arrangement of the cavitation structure, the heat supply medium generates a cavitation heat effect in the pump body of the cavitation heat supply device, so that the heat supply medium is heated, the heat generated in the cavitation process is high, the integral operation process is not influenced by the environmental temperature, no emission and no pollution are caused, the heat loss of the cavitation heat supply device is small, and the heat supply efficiency is high;

(2) the cavitation heat supply device disclosed by the disclosure adopts a mode of a multi-stage synchronous supercharging cavitation structure, so that the cavitation strength can be effectively improved; and

(3) the cavitation heat supply device in the disclosure adopts a water cooling structure to dissipate heat of the motor, and meanwhile, the dissipated heat is recycled, so that the output heat efficiency of the cavitation heat supply device is improved.

Drawings

FIG. 1 is a schematic structural diagram of a cavitation heat supply apparatus in an embodiment of the present disclosure;

FIG. 2 is a top view of a centrifugal wheel in an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a front view of a cavitation structure in an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a cross-sectional view of a cavitation sleeve in an embodiment of the present disclosure;

FIG. 7 is a schematic view of an integrally formed cavitation structure in an embodiment of the present disclosure.

[ description of main reference numerals in the drawings ] of the embodiments of the present disclosure

10-a power module;

101-an output shaft;

102-a motor;

103-water cooling jacket;

104-a first branch line;

105-a second branch line;

20-a pump body;

201-a liquid outlet;

202-liquid return port;

30-a driven shaft;

40-a centrifugal wheel;

401-a pipe;

402-an inlet of a conduit;

403-outlet of the conduit;

50-cavitation structure;

501-cavitation plate;

502-cavitation sleeve;

503-mounting holes;

504-cavitation holes;

505-a via;

60-a baffle plate;

70-a first rotary seal structure;

80-a second rotary seal structure;

90-heating area;

901-liquid return line;

902-a liquid outlet pipeline;

903-a branch liquid outlet;

904-branch return port;

100-heat insulation layer.

Detailed Description

The present disclosure provides a cavitation heat supply apparatus, including: the power module is used for outputting torque; the pump body is connected with the power module and used for inputting and discharging a heating medium of the evacuated heating device; the driven shaft is fixedly connected with an output shaft of the power module, and two ends of the driven shaft are rotationally fixed in the pump body; the centrifugal wheel is coaxially and fixedly connected with the driven shaft, a pipeline is arranged in the centrifugal wheel, an inlet of the pipeline is positioned on the first end face of the centrifugal wheel, and an outlet of the pipeline is positioned on the side wall of the centrifugal wheel; the centrifugal wheel is used for generating centrifugal force and outputting the heat supply medium from the pipeline through the centrifugal force; the cavitation structure is sleeved on the driven shaft and is fixed in the pump body; the cavitation structure is adjacent to the second end surface of the centrifugal wheel; the cavitation structure is provided with a cavitation hole, and the cavitation hole is used for outputting a heat supply medium output by the pipeline into the pump body; the baffle is sleeved on the outer diameter of the first end face of the centrifugal wheel and is fixed in the pump body. The cavitation heat supply device disclosed makes the heat supply medium generate the cavitation heat effect in the pump body of the cavitation heat supply device through the arrangement of the cavitation structure, so as to heat the heat supply medium, the heat generated in the cavitation process is high, the whole operation process is not influenced by the environmental temperature, no emission and no pollution are caused, and the heat loss of the cavitation heat supply device is small, and the heat supply efficiency is high.

For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity, and like reference numerals designate like elements throughout.

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B and C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

The present disclosure provides a cavitation heat supply apparatus, as shown in fig. 1, including: the power module 10, the pump body 20, the driven shaft 30, the centrifugal wheel 40, the cavitation structure 50 and the baffle 60. The power module 10 is used to output torque through an output shaft 101 of the power module 10. The pump body 20 is connected with the power module 10, and the pump body 20 is a closed cavity structure and can be used as a containing chamber of a heat supply medium. The pump body 20 further includes: a liquid return port 202 and a liquid outlet 201, wherein the liquid return port 202 is used for inputting the heat supply medium of the cavitation heat supply device, and the liquid outlet 201 is used for discharging the heat supply medium of the cavitation heat supply device.

The driven shaft 30 is fixedly connected with the output shaft 101 of the power module 10, and two ends of the driven shaft 30 are rotationally fixed inside the pump body 20, for example: the driven shaft 30 is rotatably fixed to the pump body 20 at both ends of the driven shaft 30 by means of bearings and bearing seats.

Fig. 2 and 3 show an external and an internal design of the centrifugal wheel 40, wherein fig. 2 shows a top view of the centrifugal wheel 40 and fig. 3 shows a sectional view of fig. 2 in the direction a-a.

As shown in fig. 2 and 3, the centrifugal wheel 40 is of an impeller structure, and the centrifugal wheel 40 is coaxially connected to the driven shaft 30. As shown in fig. 3, a duct 401 is disposed inside the centrifugal wheel 40, an inlet 402 of the duct is located on a first end surface of the centrifugal wheel 40, and an outlet 403 of the duct is located on a side wall of the centrifugal wheel 40. The centrifugal wheel 40 in this embodiment has four ducts 401, and the number of the ducts 401 is not limited herein.

The cavitation structure 50 is sleeved on the driven shaft 30 and then fixed in the cavity structure of the pump body 20; the cavitation structure 50 is adjacent a second end face of the centrifugal wheel 40. Wherein, the second end surface of the centrifugal wheel 40 is a surface opposite to the first end surface of the centrifugal wheel 40. In addition, the cavitation structure 50 is provided with a cavitation hole 504, and the cavitation hole 504 can output the heat supply medium output by the pipeline 401 to the cavity structure of the pump body 20.

The baffle 60 is sleeved on the outer diameter of the first end surface of the centrifugal wheel 40, and the baffle 60 is fixed in the cavity structure of the pump body 20.

As shown in fig. 1, the power module 10 outputs torque from an output shaft 101, and the output shaft 101 rotates the driven shaft 30 in synchronization with the rotation. The centrifugal wheel 40 is disposed between the baffle 60 and the cavitation structure 50, so that the baffle 60, the centrifugal wheel 40 and the cavitation structure 50 can form a closed cavitation chamber structure. After the heat supply medium enters the centrifugal wheel 40 from the inlet 402 of the pipe of the centrifugal wheel 40, the centrifugal wheel 40 is driven by the driven shaft 30 to rotate synchronously with the driven wheel. During rotation, the centrifugal force generated by the centrifugal wheel 40 throws the heating medium out of the outlet 403 of the duct into the cavitation chamber structure. The thrown heat-supplying medium is output from the cavitation hole 504 of the cavitation structure 50 to the cavity structure of the pump body 20 through the cavitation chamber structure. This process is referred to as a cavitation process in this embodiment, and the cavitation process causes the heating medium to generate a cavitation heat effect inside the pump body 20 of the cavitation heat supply apparatus.

The cavitation heat supply device of the present disclosure further includes a heat supply region 90, the heat supply region 90 includes a liquid return pipeline 901 and a liquid outlet pipeline 902, and the heat supply region 90 is connected to the liquid return port 202 and the liquid outlet port 201 of the pump body 20 through the liquid return pipeline 901 and the liquid outlet pipeline 902, respectively. The heat supply area 90 is used for transferring heat generated by the heat supply medium in the cavitation heat supply device to the external device to complete heat supply of the external device.

The cavitation heat supply device enables the heat supply medium to generate a cavitation heat effect inside the pump body 20, so that the heat supply medium is heated, the heat generated in the cavitation process is high, the integral operation process is not influenced by the environmental temperature, and no emission or pollution is caused.

In order to effectively increase the thermal effect, a multi-stage cavitation chamber structure may be provided at intervals in the cavity structure of the pump body 20. In this embodiment, four-stage cavitation chamber structures are arranged in the cavity structure at intervals, and as shown in fig. 1, the four-stage cavitation chamber structures are respectively a first-stage cavitation chamber structure, a second-stage cavitation chamber structure, a third-stage cavitation chamber structure and a fourth-stage cavitation chamber structure from left to right.

The gap between the first stage cavitation chamber structure and the leftmost end of the cavity forms a liquid inlet cavity, which is communicated with the liquid return port 202. The clearance between first order cavitation chamber structure and the second level cavitation chamber structure constitutes one-level cavitation chamber, the clearance between second level cavitation chamber structure and the third level cavitation chamber structure constitutes second grade cavitation chamber, the clearance between third level cavitation chamber structure and the fourth level cavitation chamber structure constitutes tertiary cavitation chamber, the clearance between the rightmost end of fourth level cavitation chamber structure and cavity constitutes export cavitation chamber, wherein, the structure of this fourth level cavitation chamber structure can be according to the pressure integrated design of external equipment, when the demand pressure range of external equipment is 0.3MPa ~ 1.0MPa, also can not set up cavitation structure 50, fourth level cavitation chamber structure includes baffle 60 and centrifugal wheel 40 this moment promptly.

As shown in fig. 1, the cavitation heat supply device includes a liquid inlet chamber and a four-stage cavitation chamber, and the four-stage cavitation chamber includes: a first-stage cavitation cavity, a second-stage cavitation cavity, a third-stage cavitation cavity and an outlet cavitation cavity.

The first embodiment is as follows:

the present embodiment discloses a circulation process (as indicated by solid arrows in fig. 1) of the heat supply medium in the pump body 20 and the hot area and a cavitation heat supply process. The heating principle and the heating process of the cavitation heating apparatus of the present disclosure are described in detail by the following steps one to four.

In the first step, the power module 10 outputs torque through the output shaft 101 to drive the driven shaft 30 to rotate, and the centrifugal wheel 40 fixedly connected to the driven shaft 30 synchronously rotates with the driven shaft 30. During the rotation process of the centrifugal wheel 40, negative pressure is generated in the liquid inlet cavity, and the heat supply medium in the heat supply area 90 is pumped into the liquid inlet cavity through the liquid return pipeline 901.

And step two, the heat supply medium in the liquid inlet cavity enters the first-stage cavitation chamber structure. That is, the heat supply medium in the liquid inlet chamber enters the centrifugal wheel 40 from the inlet 402 of the pipe of the centrifugal wheel 40 in the first-stage cavitation chamber structure, the heat supply medium in the pipe 401 generates centrifugal force along with the rotation of the centrifugal wheel 40, and the heat supply medium in the pipe 401 is thrown out from the outlet 403 of the pipe into the first-stage cavitation chamber structure due to the centrifugal force. The heat supply medium thrown out to the first-stage cavitation chamber structure is discharged into the first-stage cavitation chamber through the cavitation holes 504 in the first-stage cavitation chamber structure. The heat supply medium is discharged to the primary cavitation cavity from the inlet 402 of the pipeline of the centrifugal wheel 40 after centrifugal rotation, so that the heat supply medium forms a cavitation effect inside the pump body 20 of the cavitation heat supply device to generate heat.

And step three, the heat supply medium in the primary cavitation cavity sequentially flows through the secondary cavitation cavity and the tertiary cavitation cavity in the same principle and mode (not described herein) in the step two, and finally flows into the outlet cavitation cavity.

Step four, the heat supply medium in the outlet cavitation cavity generates a large amount of heat energy due to the cavitation effect of the steps one to three, and the heat supply medium with high heat energy is input into a heat area through the liquid outlet 201 and the liquid outlet pipeline 902, so that heat supply to the external equipment is completed.

The cavitation heat supply device can generate multi-stage cavitation effect through the arrangement of the multi-stage cavitation chamber, so that a heat supply medium can generate a large amount of heat energy, and the heat supply effect of the cavitation heat supply device to external equipment can be further improved. The mode of adopting the multistage synchronous pressurizing cavitation structure 50 can effectively improve the cavitation strength.

Fig. 4 schematically shows a front view of the cavitation structure. Fig. 5 schematically shows a cross-sectional view of the voided structure of fig. 4 taken along the direction B-B. As shown in fig. 5, the cavitation structure 50 includes: cavitation plate 501 and cavitation sleeve 502. A through hole 505 is formed in the center of the cavitation plate 501, the cavitation plate 501 is sleeved on the driven wheel through the through hole 505, a mounting hole 503 is formed in the edge of the cavitation plate 501, and a first end face of the cavitation plate 501 is adjacent to a second end face of the centrifugal wheel 40 (as shown in fig. 1). As shown in fig. 6, a cavitation hole 504 is formed in the cavitation sleeve 502, the diameters of the two end portions of the cavitation hole 504 are larger than the diameter of the middle portion of the cavitation hole 504, and the cavitation sleeve 502 is fixedly connected to the mounting hole 503 of the cavitation plate 501. In order to facilitate the smooth transportation of the heat supply medium in the cavitation chamber structure to the cavitation chambers at different levels, the cavitation sleeve 502 may be designed as follows: the axial distance value of the cavitation sleeve 502 is made larger than the thickness value of the cavitation plate 501. As shown in fig. 5, the cavitation sleeve 502 is mounted on the cavitation plate 501 in the form of: one end face of the cavitation sleeve 502 is flush with a first end face (left end face) of the cavitation plate 501, and the other end face of the cavitation sleeve 502 protrudes out of a second end face (right end face) of the cavitation plate 501. The first end face of the cavitation plate 501 is a face adjacent to the second end face of the centrifugal wheel 40, and the second end face of the cavitation plate 501 is opposite to the first end face of the cavitation plate 501.

It can be seen from fig. 5 that one end of the cavitation sleeve 502 is flush with the leftmost end face of the cavitation plate 501, and the other end of the cavitation sleeve 502 is suspended in the rightmost end face of the cavitation plate 501, so that the heat supply medium in the cavitation chamber structure can be more smoothly input into the cavitation sleeve 502, and the heat supply medium passes through the special structure inside the cavitation sleeve 502, i.e. the diameters of the two ends of the cavitation hole 504 are larger than the diameter of the middle of the cavitation hole 504, so that the pressure of the heat supply medium can be quickly reduced and quickly recovered within a very short time, and the process can cause the heat supply medium to generate a cavitation effect, and further cause the heat supply medium to generate higher heat.

As another embodiment of the present disclosure, as shown in fig. 7, the cavitation structure 50 may also be formed by integral molding. That is, the cavitation structure 50 in the present embodiment may include: a through hole 505 is formed in the center of the cavitation plate 501, and the cavitation plate 501 is sleeved on the driven shaft 30 through the through hole 505; in addition, the edge of the cavitation plate 501 is provided with a cavitation hole 504, and the diameters of the two end parts of the cavitation hole 504 are larger than the diameter of the middle part of the cavitation hole 504.

This cavitation heat supply device still includes: a first rotary seal structure 70 and a second rotary seal structure 80. The first rotary seal structure 70 is fixed to the through hole 505 of the cavitation structure 50, the first rotary seal structure 70 is rotatably connected to the driven shaft 30, and the first rotary seal structure 70 is used for sealing a gap between the cavitation structure 50 and the driven shaft 30. The second rotary sealing structure 80 is fixed on the cavity structure of the pump body 20, the second rotary sealing structure 80 is rotatably connected with the centrifugal wheel 40, and the second rotary sealing structure 80 is used for sealing the gap between the baffle 60 and the centrifugal wheel 40.

The space formed by the baffle 60, the centrifugal wheel 40 and the cavitation structure 50 is sealed by the first rotary sealing structure 70 and the second rotary sealing structure 80 with the cavity structure in the pump body 20, so that the space formed by the baffle 60, the centrifugal wheel 40 and the cavitation structure 50 forms a sealed space, and the first rotary sealing structure 70 can prevent the heat supply medium in the sealed space (namely the cavitation chamber structure) from overflowing from the gap between the cavitation structure 50 and the driven shaft 30; similarly, the second rotary sealing structure 80 prevents the heat-supplying medium in the cavitation chamber structure from overflowing through the gap between the baffle 60 and the driven shaft 30. The first rotary sealing structure 70 and the second rotary sealing structure 80 can ensure the pressure of the closed space in the cavitation chamber structure, prevent the pressure from reducing, and further increase the cavitation effect of the cavitation heat supply device.

As shown in fig. 1, the liquid return pipeline 901 is provided with a branch liquid outlet 903 and a branch liquid return port 904, and a distance between the branch liquid outlet 903 and the heat supply area 90 is smaller than a distance between the branch liquid return port 904 and the heat supply area 90.

The power module 10 includes: a motor 102 and a water cooling jacket 103. Wherein, the water cooling jacket 103 is coated outside the motor 102, and the water cooling jacket 103 is used for radiating heat for the motor 102; the water cooling jacket 103 includes: a first branch line 104 and a second branch line 105, the first branch line 104 being connected to the branch liquid outlet 903, the second branch line 105 being connected to the branch liquid return port 904. The water cooling jacket 103, the first branch pipe 104 and the second branch pipe 105 together constitute a cooling system of the power module 10 in the cavitation heat supply device.

Example two:

the present embodiment discloses a process of circulating a heat-supplying medium in the power module 10 (as indicated by the hollow arrows in fig. 1).

In the first step, the heat supply medium is branched from the branch liquid outlet 903 of the liquid return line 901 and then is conveyed to the water cooling jacket 103 through the first branch line 104.

And step two, circulating the heat supply medium flowing out in the step one in the water cooling jacket 103, then flowing into the liquid return pipeline 901 from the branch liquid return port 904 of the liquid return pipeline 901 through the second branch pipeline 105, and finally entering the circulation process of the heat supply medium in the pump body 20 and the hot area.

The low-temperature heat-supplying medium branched from the liquid return line 901 may be used to reduce the temperature of the power module 10, and the heat of the power module 10 absorbed by the part of the heat-supplying medium may be collected into the pump body 20 and the hot area. Therefore, the heat emitted by the power module 10 is recovered through the above-mentioned circulation cooling manner, so that not only the heat dissipation of the power module 10 is completed, but also the output thermal efficiency of the cavitation heat supply device is improved.

In addition, the water cooling jacket 103 and the pump body 20 of the cavitation heat supply device can be coated with the heat insulation layer 100, and the heat energy loss of the cavitation heat supply device can be reduced through the arrangement of the heat insulation layer 100, so that the heat supply efficiency is improved.

It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. In the event of possible confusion for understanding of the present disclosure, conventional structures or configurations will be omitted, and the shapes and sizes of the components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure.

Unless otherwise indicated, the numerical parameters set forth in the specification and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by the present disclosure. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". In general, the meaning of the expression is meant to encompass variations of a specified number by ± 10% in some embodiments, by ± 5% in some embodiments, by ± 1% in some embodiments, by ± 0.5% in some embodiments.

The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.

In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A cavitation heat supply apparatus comprising:

the pump body is connected with the power module and has a closed cavity structure, the pump body comprises a liquid return port and a liquid outlet, the liquid return port is used for inputting a heating medium of the cavitation heat supply device, and the liquid outlet is used for discharging the heating medium of the cavitation heat supply device;

the driven shaft is fixedly connected with an output shaft of the power module, and two ends of the driven shaft are rotationally fixed in the pump body;

the cavitation structure is sleeved on the driven shaft and is fixed in the cavity structure of the pump body; the cavitation structure is adjacent to a second end face of the centrifugal wheel, wherein the second end face of the centrifugal wheel is a face opposite to the first end face of the centrifugal wheel; the cavitation structure is provided with a cavitation hole, and the cavitation hole is used for outputting the heat supply medium output by the pipeline to the cavity structure of the pump body; the cavitation structure comprises a cavitation plate, a through hole is formed in the center of the cavitation plate, the cavitation plate is sleeved on the driven shaft through the through hole, cavitation holes are formed in the edge of the cavitation plate, and the diameters of two end parts of each cavitation hole are larger than the diameter of the middle part of each cavitation hole;

the baffle is sleeved on the outer diameter of the first end face of the centrifugal wheel and is fixed in the cavity structure of the pump body;

2. A cavitation heat supply apparatus as claimed in claim 1, wherein said cavitation structure comprises:

3. The cavitation heat supply apparatus of claim 2, wherein the cavitation sleeve being fixedly attached to the mounting hole comprises:

4. A cavitation heat supply apparatus as recited in claim 1, further comprising:

the heat supply region comprises a liquid return pipeline and a liquid outlet pipeline, the heat supply region is connected with the liquid return port and the liquid outlet of the pump body respectively through the liquid return pipeline and the liquid outlet pipeline, the heat supply region is used for introducing a heat supply medium to supply heat to the outside, and the heat supply medium after supplying heat to the outside is input to the liquid return port of the pump body.

5. The cavitation heat supply device according to claim 4, wherein a branch liquid outlet and a branch liquid return port are provided on the liquid return pipeline, and a distance between the branch liquid outlet and the heat supply area is smaller than a distance between the branch liquid return port and the heat supply area.

6. A cavitation heat supply device as claimed in claim 5, wherein the power module comprises:

a motor;

7. A cavitation heat supply apparatus as claimed in claim 6, wherein said water jacket includes: the liquid outlet device comprises a first branch pipeline and a second branch pipeline, wherein the first branch pipeline is connected with the branch liquid outlet, and the second branch pipeline is connected with the branch liquid return port.

8. The cavitation-heating apparatus according to claim 6, further comprising: