CN115395757A - Solenoid pump - Google Patents

Abstract

The invention discloses an electromagnetic pump, comprising: a pump body; the first end covers are arranged at two ends of the pump body and connected to the pump body; an inner core; the plurality of outer iron cores are at least partially arranged around the inner iron core; a winding; the pump channel mechanism is at least partially arranged between the outer iron core and the inner iron core; the pump body comprises a connecting mechanism and a first outer pipeline, the connecting mechanism is used for connecting the first outer pipeline and the first end cover, the pump ditch mechanism comprises a circulation channel for liquid metal to flow, and when the liquid metal flows out of the circulation channel, the liquid metal flows into the first outer pipeline through the connecting mechanism so as to enable the liquid metal to flow out of the electromagnetic pump; when the liquid metal flows into the flow channel, the liquid metal flows out of the electromagnetic pump to the connecting mechanism through the first outer pipeline and flows into the flow channel through the connecting mechanism. Through the arrangement, space can be provided for axial vibration of the electromagnetic pump, and space can be provided for thermal expansion of materials adopted by the electromagnetic pump.

Description

Solenoid pump

technical field

The invention relates to the field of electromagnetic pumps, in particular to induction electromagnetic pumps.

Background technique

The electromagnetic pump has no rotating parts, no friction loss, high efficiency, good sealing, and high operating safety factor. It can provide power for the transmission of molten metal, and is widely used in nuclear power plant fast neutron reactor cooling, metal smelting and manufacturing industries. At present, electromagnetic pumps are mainly divided into two categories: conduction electromagnetic pumps and induction electromagnetic pumps. Among them, conduction electromagnetic pumps are divided into DC pumps and single-phase AC pumps. Induction electromagnetic pumps are divided into single-phase AC pumps and three-phase AC pumps. Among the three-phase AC pumps, there are three different structures: planar pumps, screw pumps and cylindrical pumps.

In the prior art, a connecting structure needs to be set between the pump ditch and the outer pipeline of the electromagnetic pump, and it is necessary to ensure that the outer diameter of the pump ditch is basically the same as the diameter of the outer pipeline, so that the metal fluid can flow in or out from the pump ditch Solenoid pump. However, when the outer diameter of the pump groove is basically the same as the diameter of the outer pipe, it is not conducive to the transportation of the metal fluid in the electromagnetic pump, reduces the delivery efficiency of the metal fluid, and will generate metal fluid between the pump groove and the outer pipe. Circulation, thus affecting the normal operation of the electromagnetic pump. In addition, during the operation of the electromagnetic pump, there will be noise and vibration, and the temperature of the electromagnetic pump is extremely high during operation, and the material will thermally expand, which will affect the safety of the electromagnetic pump.

Contents of the invention

In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide an electromagnetic pump that can improve safety performance.

To achieve the above object, the present invention adopts the following technical solutions:

An electromagnetic pump, comprising: a pump body, the pump body is formed with an accommodation space; a first end cover, the first end cover is arranged at both ends of the pump body and connected to the pump body; an inner iron core, at least partly arranged on In the accommodation space; a plurality of outer iron cores, the plurality of outer iron cores are at least partially arranged around the inner iron core; windings, the windings are at least partially arranged on the outer iron cores; a pump ditch mechanism, the pump ditch mechanism is at least partially arranged on the outer iron cores and the inner iron core Between the cores; the pump body includes a connecting mechanism and a first outer pipe, the connecting mechanism is used to connect the first outer pipe and the first end cover, and the pump channel mechanism includes a flow channel for liquid metal flow, when the liquid metal flows from the flow channel When flowing out, the liquid metal flows into the first outer pipeline through the connecting mechanism, so that the liquid metal flows out of the electromagnetic pump; when the liquid metal flows in from the circulation channel, the liquid metal flows out from the electromagnetic pump into the connecting mechanism through the first outer pipeline , and flow into the circulation channel through the connecting mechanism.

Further, the two ends of the inner iron core are also provided with second end caps for sealing the inner iron core, and the second end caps form a first passage for the liquid metal to flow.

Further, the pump ditch mechanism also includes: a first pump ditch wall, the first pump ditch wall is arranged between the outer iron core and the inner iron core; a second pump ditch wall, the second pump ditch wall is arranged between the first pump ditch wall and the inner iron core. Between the inner iron cores; the flow channel is set between the first pump ditch wall and the second pump ditch wall.

Further, the wall of the second pump groove is connected to the second end cover, so that the second end cover seals the inner iron core.

Further, the connecting mechanism is a trapezoidal flange.

Further, the material of the connection mechanism is set to be silicon nitride.

To achieve the above object, the present invention adopts the following technical solutions:

An electromagnetic pump, comprising: a pump body, the pump body is formed with an accommodation space; an inner iron core, the inner iron core is at least partially arranged in the accommodation space; several outer iron cores, and several outer iron cores are at least partially arranged around the inner iron core ; the winding, the winding is at least partially arranged on the outer iron core; the pump ditch mechanism, the pump ditch mechanism is at least partially arranged between the outer iron core and the inner iron core; the pump ditch mechanism includes: a first pump ditch wall, the first pump ditch wall is arranged outside between the iron core and the inner iron core; the second pump ditch wall, the second pump ditch wall is set between the first pump ditch wall and the inner iron core; the first protective layer, the first protective layer is set on the first pump ditch wall and the outer iron core; the flow channel, the flow channel is set between the first pump ditch wall and the second pump ditch wall; the first pump ditch wall and the first protective layer extend along the axial direction of the electromagnetic pump to form a first The outer wall layer, the end of the first outer wall layer far away from the inner iron core gradually gathers toward the axial direction of the electromagnetic pump and forms a pipeline opening. The pump body also includes a second outer pipeline connected to the pipeline opening. When the liquid metal flows from the When flowing out of the channel, the liquid metal flows into the second outer pipe through the first outer wall layer, so that the liquid metal flows out of the electromagnetic pump; when the liquid metal flows in from the circulation channel, the liquid metal flows out of the electromagnetic pump through the second outer pipe into the first outer wall layer and flow through the first outer wall layer into the flow channel.

Further, along the axial direction of the electromagnetic pump, the extension lengths of the first pump trench wall and the first protective layer are basically the same.

Further, the two ends of the inner iron core are also provided with second end caps for sealing the inner iron core, and the second end caps form a first passage for the liquid metal to flow.

Further, both the walls of the first pump trench and the second pump trench are made of ceramic material, and the first protective layer is made of carbon fiber material.

The electromagnetic pump provided by the invention can provide space for axial vibration of the electromagnetic pump, and can provide space for thermal expansion of materials used in the electromagnetic pump, thereby improving the safety of the electromagnetic pump.

Description of drawings

Fig. 1 is a schematic diagram of the first structure of the electromagnetic pump of the present invention.

Fig. 2 is a partial enlarged view of A in Fig. 1 of the present invention.

Fig. 3 is a schematic diagram of the first structure of the sub-cavity structure of the present invention.

Fig. 4 is a second structural schematic diagram of the sub-cavity structure of the present invention.

Fig. 5 is a schematic diagram of the third structure of the sub-cavity structure of the present invention.

Fig. 6 is a schematic structural view of the first inner iron core of the present invention.

Fig. 7 is a schematic structural view of the second inner iron core of the present invention.

Fig. 8 is a schematic structural view of the first outer iron core and the third inner iron core of the present invention.

Fig. 9 is a schematic diagram of the first structure of the pump body of the present invention.

Fig. 10 is a schematic diagram of the second structure of the pump body of the present invention.

Fig. 11 is a schematic diagram of the third structure of the pump body of the present invention.

Fig. 12 is a schematic diagram of the fourth structure of the pump body of the present invention.

Fig. 13 is a schematic diagram of the fifth structure of the pump body of the present invention.

Fig. 14 is a schematic diagram of the sixth structure of the pump body of the present invention.

Fig. 15 is a schematic structural view of the second outer iron core of the present invention.

Fig. 16 is a schematic diagram of a partial structure of the second outer iron core of the present invention.

Fig. 17 is a schematic structural view of the third outer iron core of the present invention.

Fig. 18 is a partially enlarged view of B in Fig. 17 of the present invention.

Fig. 19 is a schematic structural view of the first support member of the present invention.

Fig. 20 is a schematic structural view of the second support member of the present invention.

Fig. 21 is a schematic structural view of the third support member of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the specific embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

As shown in FIG. 1 , an electromagnetic pump 100 includes a pump body 11 , a winding 12 , several outer iron cores 13 , inner iron cores 14 and a pump channel mechanism 15 . The pump body 11 is formed with a first accommodation space. The winding 12 is at least partially disposed in the first accommodation space, and the winding 12 is at least partially disposed on the outer iron core 13 for transmitting current. Several outer iron cores 13 are at least partially arranged in the first accommodation space, and inner iron cores 14 are also at least partially arranged in the first accommodation space. Several outer iron cores 13 are at least partially arranged around the inner iron core 14, so that the current in the winding 12 between the outer iron cores 13 and the inner iron core 14 generates a magnetic field, thereby realizing electromagnetic induction. The pump channel mechanism 15 is at least partially disposed in the first accommodation space and at least partially disposed between the outer iron core 13 and the inner iron core 14, for serving as a channel for the flow of liquid metal. Specifically, after the winding 12 is energized, the magnetic field generated between the outer iron core 13 and the inner iron core 14 interacts with the liquid metal in the pump channel mechanism 15 to generate an induced current, and the liquid metal in the pump channel mechanism 15 becomes a current-carrying conductor , so that the liquid metal interacts with the magnetic field to generate electromagnetic force, and then drives the directional flow of the liquid metal.

As shown in FIGS. 1 and 2 , as an implementation, the pump channel mechanism 15 includes a flow channel 151 , a pump channel wall 152 and a protective layer 153 . The pump trench wall 152 includes a first pump trench wall 1521 and a second pump trench wall 1522, the flow channel 151 is arranged between the first pump trench wall 1521 and the second pump trench wall 1522, the first pump trench wall 1521 and the second pump trench wall 1522 The gap between the walls 1522 is the communication channel 151 . The protective layer 153 includes a first protective layer 1531 and a second protective layer 1532, which are used to improve the strength of the pump trench wall 152, thereby fixing the shape of the flow channel 151 and facilitating the flow of liquid metal. The pump trench wall 152 is disposed between the first protection layer 1531 and the second protection layer 1532 , and the flow channel 151 is disposed between the first protection layer 1531 and the second protection layer 1532 . Specifically, the first protective layer 1531 is arranged between the outer iron core 13 and the first pump trench wall 1521 , and the second protective layer 1532 is arranged between the inner iron core 14 and the second pump trench wall 1522 . That is, the outer iron core 13 , the first protective layer 1531 , the first pump trench wall 1521 , the flow channel 151 , the second pump trench wall 1522 , and the second protective layer 1532 are arranged in sequence from outside to inside. In this embodiment, the pump trench wall 152 can be made of ceramic material, that is, the pump trench wall 152 can be made of silicon nitride ceramics. Since silicon nitride ceramics are stable in nature, non-magnetic, non-conductive, and corrosion-resistant, the pump trench Wall 152 may have good corrosion resistance and high strength. The protective layer 153 can be made of carbon fiber material to ensure that the pump trench wall 152 can have a certain degree of ductility, so that after the temperature changes, the problem of thermal expansion and contraction of the pump trench mechanism 15 is solved, thereby improving the toughness of the pump trench mechanism 15. The safety of the electromagnetic pump 100 is improved.

As shown in Figure 1, as an implementation, several outer iron cores 13 are at least partially arranged around the inner iron core 14, and the end of the several outer iron cores 13 close to the pump ditch mechanism 15 is the first end, and the first end The end surface is a first arc surface, and the first arc surface has a first arc shape. Through the above arrangement, the polar arc area provided by the first end is larger than that provided when the first end is a plane, thereby increasing the polar arc area of the first end and reducing the circulation of liquid metal in the pump channel mechanism 15 , thereby improving the flow rate and efficiency of the electromagnetic pump 100 . Specifically, the first arc surfaces of several outer iron cores 13 jointly form a cylindrical space, and the cross section of the cylindrical space is a first circle. The center of the first circle and the center of the inner iron core 14 basically coincide, so as to realize the concentricity of the electromagnetic pump 100 and effectively reduce the possibility of unilateral magnetic pressure. In this embodiment, the outer iron core 13 can be made of silicon steel, so that electric energy and magnetic energy can exchange energy most effectively.

，第一保护层1531和第二保护层1532的厚度基本一致且厚度为

。内铁芯14基本为圆柱体，内铁芯14的半径为r。流通通道151的横截面基本为圆环形，且流通通道151的横截面和内铁芯14横截面的圆心基本重合，从而实现电磁泵100的同心性，可以有效减小出现单边磁压力的可能性。流通通道151的宽度为h，h指沿圆环半径方向上的流通通道151的外环和内环的距离。若干个外铁芯13构成的圆柱空间的横截面，即第一圆形的圆心基本和内铁芯14的横截面的圆心重合，从而实现电磁泵100的同心性，可以有效减小出现单边磁压力的可能性。沿第一圆形的半径方向，第一圆形和第一保护层1531的外侧壁之间距离为δ。第一圆形具有第一半径

，外铁芯13基本关于第一半径

对称设置。外铁芯13的宽度为L，L指垂直于第一半径

方向的宽度，具体的，L指外铁芯13靠近泵沟机构15的两个端点之间的距离。根据勾股定理可得：In this embodiment, the thickness of the first pump groove wall 1521 and the second pump groove wall 1522 are basically the same and the thickness is

, the thicknesses of the first protective layer 1531 and the second protective layer 1532 are basically the same and the thickness is

. The inner iron core 14 is basically a cylinder, and the radius of the inner iron core 14 is r. The cross-section of the circulation channel 151 is basically circular, and the cross-section of the circulation channel 151 and the center of the cross-section of the inner iron core 14 basically coincide, so as to realize the concentricity of the electromagnetic pump 100 and effectively reduce the occurrence of unilateral magnetic pressure. possibility. The width of the flow channel 151 is h, and h refers to the distance between the outer ring and the inner ring of the flow channel 151 along the radial direction of the ring. The cross-section of the cylindrical space formed by several outer iron cores 13, that is, the center of the first circle basically coincides with the center of the cross-section of the inner iron core 14, so as to realize the concentricity of the electromagnetic pump 100 and effectively reduce the occurrence of unilateral Possibility of magnetic pressure. Along the radial direction of the first circle, the distance between the first circle and the outer sidewall of the first protection layer 1531 is δ. The first circle has a first radius

, the outer core 13 is substantially about the first radius

Symmetrical setting. The width of the outer iron core 13 is L, and L refers to the diameter perpendicular to the first radius

The width in the direction, specifically, L refers to the distance between the two ends of the outer iron core 13 close to the pump channel mechanism 15 . According to the Pythagorean theorem:

It can be known from the above formula that the arc of the first arc surface of the outer iron core 13 is 2α.

As an implementation manner, the center of the first circle is connected with one end of the first arc to form a first straight line, and the center of the first circle is connected to the other end of the first arc to form a second straight line. The area surrounded by the first arc, the first straight line and the second straight line is the first area S1. Specifically, the number of outer iron cores 13 is consistent with the number of the first area S1, and both the number of outer iron cores 13 and the number of the first area S1 can be adjusted according to actual needs. A second area S2 is formed between two adjacent first areas S1. The overlapping part of the first area S1 and the circulation channel 151 is the third area S3, and the overlapping part of the second area S2 and the circulation channel 151 is the fourth area S4. In this embodiment, the third area S3 extends along the axial direction of the electromagnetic pump 100, and divides the flow passage 151 into a first area, and the fourth area S4 extends along the axial direction of the electromagnetic pump 100, and divides the flow passage 151 into a second area. area.

During the working process of the electromagnetic pump 100 , the magnetic field lines of the magnetic field generated by electromagnetic induction basically completely pass through the first region when entering the inner iron core 14 from the outer iron core 13 or entering the outer iron core 13 from the inner iron core 14 . At this time, the magnetic induction intensity of the first area is relatively large, and the magnetic induction intensity of the first area is greater than the magnetic induction intensity of the second area. Therefore, the liquid metal in the first region moves along the first direction with a relatively fast flow velocity, while the liquid metal within the second region moves along the second direction with a relatively slow flow velocity. Wherein, the first direction and the second direction are basically along the radius direction of the first circle, and the first direction and the second direction are basically opposite. According to the principle of fluid continuity, the liquid metal moving along the first direction will form a circulation and meet the liquid metal moving along the second direction, thereby greatly reducing the flow rate and efficiency of the electromagnetic pump 100 .

As shown in FIG. 2 , in this embodiment, the pump channel mechanism 15 also includes several sub-chamber structures 154 . The sub-cavity structure 154 is at least partially disposed between the first pump trench wall 1521 and the second pump trench wall 1522, one end of the sub-cavity structure 154 is connected to or abuts against the first pump trench wall 1521, and the other end of the sub-cavity structure 154 is connected to or The other end of the sub-cavity structure 154 can also be connected to the inner iron core 14 by abutting against the second pump groove wall 1522 . The sub-cavity structure 154 is used to divide the flow passage 151 into several passages, and is used to support the first pump groove wall 1521 and the second pump groove wall 1522, thereby maintaining the stability of the flow passage 151, which is beneficial to improve the electromagnetic pump 100. stability. The number of sub-cavity structures 154 is consistent with the number of the outer iron core 13 . Specifically, the cross-sectional area of the sub-cavity structure 154 is greater than or equal to the fourth area, and the cross-section of the sub-cavity structure 154 substantially completely covers the fourth area. Through the above configuration, the sub-cavity structure 154 can block the movement of the liquid metal moving in the second direction, thereby reducing the circulating flow of the liquid metal in the pump channel mechanism 15 and improving the flow rate and efficiency of the electromagnetic pump 100 . Wherein, the sub-cavity structure 154 has good electrical conductivity, corrosion resistance and high temperature resistance. For example, the sub-cavity structure 154 can be made of molybdenum alloy, so as to improve corrosion resistance and strength. Among them, the good high temperature resistance of the sub-cavity structure 154 means that the volume change of the sub-cavity structure 154 is less than or equal to 1% at a temperature of 500°C; the good corrosion resistance of the sub-cavity structure 154 means that the electromagnetic pump 100 works continuously for three In the case of ten days, the mass change of the sub-cavity structure 154 is less than or equal to 0.05%.

As shown in FIG. 3 , FIG. 4 and FIG. 5 , as an implementation manner, the sub-cavity structure 154 includes a first sub-cavity part 1541 and/or a second sub-cavity part 1542 and/or a third sub-cavity part 1543 . The first sub-chamber 1541 is arranged between the first pump channel wall 1521 and the second pump channel wall 1522, one end of the first sub-chamber 1541 is connected to or abuts against the first pump channel wall 1521, and the first sub-chamber 1541 The other end is connected or abutted against the second pump channel wall 1522 . The second sub-chamber 1542 is arranged between the first pump trench wall 1521 and the second pump trench wall 1522, one end of the second sub-chamber 1542 is connected to or abuts against the first pump trench wall 1521, and the second sub-chamber 1542 The other end is connected or abutted against the second pump channel wall 1522 . The third sub-chamber 1543 is arranged between the first pump trench wall 1521 and the second pump trench wall 1522, one end of the third sub-chamber 1543 is connected to or abuts against the first pump trench wall 1521, and the third sub-chamber 1543 The other end is connected or abutted against the second pump channel wall 1522 . Specifically, the cross section of the first sub-chamber 1541 is a first cross section, the shape of the first cross section is basically a first trapezoid, and the longer bottom edge of the first cross section is connected to or abuts against the first pump channel wall 1521 , the shorter bottom edge of the first cross-section connects or abuts against the second pump channel wall 1522 . The cross section of the second sub-chamber 1542 is a second cross section, and the shape of the second cross section is substantially rectangular. The cross section of the third sub-cavity part 1543 is the third cross section, the shape of the third cross section is basically two second trapezoids spliced together, and the shorter bases of the two second trapezoids are spliced, and one of the second trapezoids The longer bottom of the second trapezoid is connected or abutted against the first pump groove wall 1521 , and the longer bottom of the other second trapezoid is connected or abutted against the second pump groove wall 1522 .

，第一横截面较短的底边也为弧形且弧长为

；第二横截面连接泵沟壁152的边长也为弧形且弧长为

；第三横截面较长的底边也为弧形且弧长为

，第三横截面较短的底边为直边且长度为

。又由于流通通道151的宽度为h，第一横截面的高度基本也为h，第二横截面的高度基本也为h，第三横截面的高度基本也为h。第一横截面和第三横截面的梯形的两侧边和梯形的高所成的角度为θ，且

。其中，n为分腔结构154的数量。分腔结构154的数量和外铁芯13的数量一致。In this embodiment, since the first pump groove wall 1521 and the second pump groove wall 1522 are both arc-shaped surfaces, the longer base of the first cross-section is also arc-shaped with an arc length of

, the shorter base of the first cross-section is also arc-shaped and the arc length is

; The side length of the second cross section connecting the pump ditch wall 152 is also arc-shaped and the arc length is

; the longer base of the third cross-section is also arc-shaped and the arc length is

, the shorter base of the third cross-section is straight and has a length of

. Since the width of the circulation channel 151 is h, the height of the first cross-section is basically h, the height of the second cross-section is basically h, and the height of the third cross-section is basically h. The angle formed by the two sides of the trapezoid of the first cross-section and the third cross-section and the height of the trapezoid is θ, and

. Wherein, n is the number of sub-cavity structures 154 . The number of sub-cavity structures 154 is consistent with the number of the outer iron core 13 .

、

和

需满足以下要求：specific,

,

and

The following requirements must be met:

As an implementation manner, the inner iron core 14 may be the first inner iron core 141 or the second inner iron core 142 or the third inner iron core 143 .

方向延伸。若干个铁芯扇形分区1412拼接后和第一中心圆柱1411形成基本密闭的圆柱体结构。具体的，外铁芯13的数量、第一半径

的数量、铁芯扇形分区1412的数量、楔条1413的数量均一致。外铁芯13的数量和第一半径

的数量均可以根据实际需求进行调整，即铁芯扇形分区1412的数量和楔条1413的数量也可以根据实际需求进行调整。相邻两个第一半径

之间的角度为360/n，即铁芯扇形分区1412的弧度为360/n。其中，n为铁芯扇形分区1412的数量，从而有利于相邻两个铁芯扇形分区1412之间的拼接。在本实施方式中，铁芯扇形分区1412基本为扇环形，且由于铁芯扇形分区1412的延伸方向为第一半径

方向，每个铁芯扇形分区1412靠近第二保护层1532的两端均形成有第一缺口1414，相邻两个铁芯扇形分区1412的第一缺口1414构成第二缺口1415。若干个外铁芯13构成的圆柱空间的横截面，即第一圆形。第一圆形具有第二半径

，分腔结构154基本关于第二半径

对称设置，第二缺口1415基本关于第二半径

对称设置。在本实施方式中，第二缺口1415的横截面基本为三角形或扇形或其他形状。具体的，铁芯扇形分区1412的外弧面和铁芯扇形分区1412的两侧面的相交处均设置有第一缺口1414，相邻两个铁芯扇形分区1412拼接后，两个第一缺口1414构成第二缺口1415。其中，铁芯扇形分区1412的外弧面指铁芯扇形分区1412靠近第二保护层1532的表面。As shown in FIG. 6 , as an implementation, the first inner iron core 141 includes a first central cylinder 1411 , several iron core sector sections 1412 and several wedge strips 1413 . The center of the first central cylinder 1411 is the center of the first inner iron core 141 , and the axis of the first central cylinder 1411 basically coincides with the axis of the electromagnetic pump. A plurality of core fan-shaped partitions 1412 are arranged at least partially around the first central cylinder 1411, and the iron core fan-shaped partitions 1412 are substantially along the first radius

direction extension. After the splicing of several iron core sector sections 1412 and the first central cylinder 1411, a substantially airtight cylindrical structure is formed. Specifically, the number of outer iron cores 13, the first radius

The quantity of the iron core sector 1412 and the wedge strip 1413 are all consistent. The number and first radius of the outer iron core 13

can be adjusted according to actual needs, that is, the number of core sector sections 1412 and the number of wedge bars 1413 can also be adjusted according to actual needs. adjacent two first radii

The angle between them is 360/n, that is, the radian of the iron core sector 1412 is 360/n. Wherein, n is the number of core sectoral sections 1412 , which facilitates splicing between two adjacent iron core sectoral sections 1412 . In this embodiment, the core sector 1412 is basically a sector ring, and since the extension direction of the core sector 1412 is the first radius

direction, each iron core sector 1412 is formed with a first notch 1414 at both ends near the second protection layer 1532 , and the first notches 1414 of two adjacent iron core sector 1412 form a second notch 1415 . The cross section of the cylindrical space formed by several outer iron cores 13 is the first circle. The first circle has a second radius

, the sub-cavity structure 154 is basically about the second radius

Symmetrically disposed, the second notch 1415 is substantially about the second radius

Symmetrical setting. In this embodiment, the cross section of the second notch 1415 is basically triangular or fan-shaped or other shapes. Specifically, a first notch 1414 is provided at the intersection of the outer arc surface of the iron core sector 1412 and the two sides of the iron core sector 1412. After splicing two adjacent iron core sector 1412, the two first notches 1414 A second notch 1415 is formed. Wherein, the outer arc surface of the iron core sector 1412 refers to the surface of the iron core sector 1412 close to the second protection layer 1532 .

As an implementation manner, the wedge strip 1413 is at least partially disposed between two adjacent iron core sector sections 1412 . Specifically, the wedge strip 1413 is arranged in the second notch 1415, and the shape of the cross section of the wedge strip 1413 is basically consistent with the shape of the cross section of the second notch 1415, that is, on a projection plane perpendicular to the axial direction of the electromagnetic pump 100 Above, the projection of wedge bar 1413 on the projection plane along the axial direction of electromagnetic pump 100 is the first projection plane, the projection of second notch 1415 on the projection plane along the axial direction of electromagnetic pump 100 is the second projection plane, and the first projection The plane and the second projection plane basically coincide. In this embodiment, the cross section of the wedge strip 1413 is basically triangular or fan-shaped or other shapes, and the wedge strip 1413 is made of non-magnetic stainless steel. The sub-chamber structure 154 divides the circulation channel 151 into several channels, the cross-section of each channel is basically circular, and the arc of the cross-section of each channel is a cavity arc. Through the above configuration, the pole arc can be made larger than the cavity arc, thereby reducing the circulation of liquid metal in the pump channel mechanism 15 and improving the flow rate and efficiency of the electromagnetic pump 100 .

方向延伸，第一叠片1412a的宽度w为垂直于第一半径

方向上的宽度。具体的，As an implementation, the core sector 1412 includes several first laminations 1412a, and the number m of the first laminations 1412a in each core sector 1412 can be adjusted according to actual needs. Each first lamination 1412a The width w is basically the same. Wherein, the first lamination 1412a is substantially along the first radius

direction, the width w of the first lamination 1412a is perpendicular to the first radius

The width in the direction. specific,

Wherein, n is the number of core sectors 1412 , and r is the radius of the first inner core 141 . In this embodiment, the first lamination 1412a is made of cold-rolled grain-oriented silicon steel sheet, and the width w of the first lamination 1412a complies with the specification of the thickness of the existing silicon steel sheet. Through the above arrangement, since the width w of each first lamination 1412a can be controlled, there is a very flexible adjustment space for the size of the wedge strip 1413 . The wedge bar 1413 cooperates with the outer iron core 13 and the sub-cavity structure 154 to ensure the largest pole arc, making the pole arc larger than the cavity arc, thereby reducing the circulation of liquid metal in the pump trench mechanism 15 and improving the flow rate and efficiency of the electromagnetic pump 100 . In addition, the first inner iron core 141 is composed of several first laminations 1412a, and the circumferential circulation of the first inner iron core 141 is reduced by increasing the contact resistance.

As an implementation, the method for processing the sector 1412 of the iron core includes the following steps:

S1: Select several first laminations 1412a with the same height, same width, and different lengths;

S2: Arranging several first laminations 1412a and fixedly connecting two adjacent first laminations 1412a to form an iron core sector 1412 with a fan-shaped cross section;

S3: Splicing several iron core sector sections 1412 into a torus, and forming a second gap 1415 at the joint of two adjacent iron core sector sections 1412;

S4: Set the wedge bar 1413 in the second notch 1415, so that the wedge bar 1413, several iron core sectors 1412 and the first central cylinder 1411 are connected together to form a first inner iron core 141 with a circular cross section.

方向上的长度，第一叠片1412a的长度指平行于第一半径

方向上的长度。步骤S2中若干个第一叠片1412a的排列方式为：靠近第一半径

的第一叠片1412a的长度最大，远离第一半径

的第一叠片1412a的长度最小。通过上述设置，可以使铁芯扇形分区1412的横截面形状基本为扇环形，从而有利于相邻两个铁芯扇形分区1412之间的拼接。其中，第一叠片1412a之间的连接方式可以是通过胶水粘合。此外，对步骤S2中构成的铁芯扇形分区1412的边界进行锉削处理，从而使铁芯扇形分区1412的边界变得更加光滑，有利于铁芯扇形分区1412之间的拼接。其中，扇环形的横截面的弧度所对应的角度β=360/n，n为铁芯扇形分区1412的数量。In step S1, the height of the first lamination 1412a refers to the length along the axial direction of the electromagnetic pump 100, and the width of the first lamination 1412a refers to the length perpendicular to the first radius

The length in the direction, the length of the first lamination 1412a refers to the length parallel to the first radius

length in the direction. The arrangement of several first laminations 1412a in step S2 is: close to the first radius

The length of the first lamination 1412a is the largest, away from the first radius

The length of the first lamination 1412a is the smallest. Through the above-mentioned configuration, the cross-sectional shape of the core sector 1412 can be basically fan-shaped, thereby facilitating splicing between two adjacent core sectors 1412 . Wherein, the connection method between the first laminations 1412a may be through glue bonding. In addition, the boundary of the iron core sector 1412 formed in step S2 is filed, so that the boundary of the iron core sector 1412 becomes smoother, which is beneficial to the splicing between the iron core sector 1412 . Wherein, the angle β=360/n corresponding to the radian of the cross-section of the fan ring, where n is the number of fan-shaped partitions 1412 of the iron core.

In step S3, the fan-shaped sections 1412 of the iron core are glued together. In step S4, the wedge strip 1413 and the second notch 1415 are bonded with glue, that is, the iron core sector 1412 and the wedge strip 1413 are bonded with glue, and the iron core sector 1412 and the first central cylinder 1411 are also glued together. Bonded by glue.

Specifically, the processing method of the iron core segment 1412 also includes:

S5: setting the second protective layer 1532 outside the first inner iron core 141 to fix the first inner iron core 141;

S6: arrange the flow channel 151 and the pump trench wall 152 outside the second protective layer 1532; and divide the flow channel 151 into n channels by the cavity structure 154;

S7: setting the first protective layer 1531 outside the pump trench wall 152;

S8: Connect the pump channel mechanism 15 with the first inner iron core 141 .

In step S5, the second protective layer 1532 is made of carbon fiber material, and the second protective layer 1532 is polished to make the surface of the second protective layer 1532 smooth. In step S6, the pump trench wall 152 is made of ceramic material. The pump groove wall 152 includes a first pump groove wall 1521 and a second pump groove wall 1522 , and a communication channel 151 is formed between the first pump groove wall 1521 and the second pump groove wall 1522 . The sub-cavity structure 154 is disposed between the first pump trench wall 1521 and the second pump trench wall 1522 , and connects the first pump trench wall 1521 and the second pump trench wall 1522 respectively. In addition, the pump groove walls 152 on both sides of the circulation channel 151 need to be polished to make the surface of the pump groove walls 152 smooth and uniform, thereby facilitating the flow of liquid metal. In step S7, the first protective layer 1531 is made of carbon fiber material, and the first protective layer 1531 is polished to make the surface of the first protective layer 1531 smooth. In step S8, the pump channel mechanism 15 is heated, that is, the pump channel wall 152 and the protective layer 153 are heated, so that the pump channel mechanism 15 is heated and expanded. In the high temperature state, the pump ditch mechanism 15 is arranged around the first inner iron core 141 to realize the interference fit connection between the pump ditch mechanism 15 and the first inner iron core 141, so that the pump ditch mechanism 15 and the first inner iron core 141 The assembly of the electromagnetic pump 100 is more stable, thereby improving the stability of the electromagnetic pump 100.

Through the above settings, it can be ensured that the center of the protective layer 153, the center of the first inner iron core 141, the center of the first central cylinder 1411, and the center of the pump groove wall 152 are basically coincident, so that the concentricity of the electromagnetic pump 100 can be realized, and the pump can be effectively reduced. The possibility of unilateral magnetic pressure is reduced, thereby improving the stability of the electromagnetic pump 100 .

As shown in FIG. 7 , as an implementation, the second inner iron core 142 includes a second central cylinder 1421 and several first iron cores 1422 . Several first iron cores 1422 are arranged around the second central cylinder 1421 , and the several first iron cores 1422 are connected to the second central cylinder 1421 . Several first iron cores 1422 are arranged in the shape of ribs. Several first iron cores 1422 are at least partially disposed between the second protective layer 1532 and the second central cylinder 1421 . Specifically, the end faces of the first iron cores 1422 connected to one end of the second central cylinder 1421 are arc-shaped, and the end faces of the plurality of first iron cores 1422 connected to one end of the second central cylinder 1421 form a first cylindrical space. The two central cylinders 1421 are at least partially disposed in the space of the first cylinder, so as to facilitate the stable connection of the plurality of first iron cores 1422 and the second central cylinder 1421 . The end faces of the first iron cores 1422 close to the second protective layer 1532 are all first arc surfaces, and the radius of the first arc surfaces is basically the same as that of the second protective layer 1532, so that the first iron cores 1422 and the second protective layer 1532 are basically the same. The connection or contact between the two protective layers 1532 is more stable. Through the above arrangement, the second inner iron core 142 can be divided into blocks through several first iron cores 1422, so that the magnetic field in the pump channel mechanism 15 and the output of the electromagnetic pump 100 will not be affected, and the eddy current can be effectively suppressed. , reducing the loss and temperature rise of the electromagnetic pump 100 during operation, thereby improving the efficiency and service life of the electromagnetic pump 100 . In addition, when the first iron core 1422 forms a rib structure, the eddy current distribution is no longer annular, but a small vortex is formed on the cross section of each rib, thereby blocking the circumferential passage of the eddy current and reducing the eddy current loss.

In this embodiment, the number of first iron cores 1422 can be adjusted according to actual needs, and the ratio of the number of outer iron cores 13 to the number of first iron cores 1422 can be 1, that is, the number of outer iron cores 13 and the first iron core 1422 The number of iron cores 1422 is consistent.

Specifically, the interval between two adjacent first iron cores 1422 is a first radian γ, and the first radian γ is greater than or equal to 10° and less than or equal to 36°. Wherein, the first radian γ refers to the interval between two adjacent first iron cores 1422 in the circumferential direction. In this embodiment, the first radian γ may also be set to be greater than or equal to 13° and less than or equal to 15°. In addition, in the area of the pump channel mechanism 15 corresponding to the radian where the first radian γ is located, since there is no magnetic field in the above area, the liquid metal cannot generate induced current, and there is no thrust to push the liquid metal to move, so it is necessary to set up in the above area The sub-chamber structure 154 prevents liquid metal from circulating, thereby seriously affecting the performance of the electromagnetic pump 100 . Through the setting of the range of the first radian γ above, the setting of the sub-chamber structure 154 can be made more reasonable, specifically, the volume of the sub-cavity structure 154 in the pump channel mechanism 15 can be made more reasonable, so as to prevent liquid metal circulation In some cases, the pump channel mechanism 15 can be used to transport more liquid metal, thereby improving the working efficiency and performance of the electromagnetic pump 100 . Specifically, the diameter of the second central cylinder 1421 is set to a first diameter R1, and the diameter of the first iron core 1422 is set to a second diameter R2. Wherein, the second diameter R2 refers to the diameter of the first arc surface of the first iron core 1422 . More specifically, the ratio of the second diameter R2 to the first diameter R1 is set to be 1.5 or more and 3 or less. In this embodiment, the ratio of the second diameter R2 to the first diameter R1 is set to be greater than or equal to 2 and less than or equal to 2.5. Through the above arrangement, sufficient magnetic force lines can be transmitted from the outer iron core 13 to the first iron core 1422 , thereby improving the electromagnetic performance of the electromagnetic pump 100 . In addition, when the electromagnetic pump 100 is running, magnetic pressure or magnetic pulling force will be generated in the radial direction of the electromagnetic pump 100. If the size of the first iron core 1422 is too large, the second central cylinder 1421 will not be able to support the large magnetic pressure, thereby This will cause the structure of the electromagnetic pump 100 to be destroyed from the inside and deformed, reducing the reliability of the electromagnetic pump 100 . Through the above arrangement, the size of the first iron core 1422 can be made smaller, thereby reducing the magnetic pressure on the second central cylinder 1421 , thereby making the structure of the electromagnetic pump 100 more stable and improving the reliability of the electromagnetic pump 100 .

As shown in FIG. 8 , as an implementation, the third inner iron core 143 includes a third central cylinder 1431 , several second iron cores 1432 and several fixing structures 1433 . Several second iron cores 1432 are arranged around the third central cylinder 1431 , several fixing structures 1433 are arranged around the third central cylinder 1431 , and the second iron cores 1432 are connected to the third central cylinder 1431 through the fixing structures 1433 . Several second iron cores 1432 are arranged in the shape of ribs, and several fixing structures 1433 are arranged in the shape of ribs. Several second iron cores 1432 are at least partially disposed between the second protective layer 1532 and the fixing structure 1433 . Specifically, the number of the second iron cores 1432 is consistent with the number of the fixing structures 1433 . The fixing structure 1433 is at least partially disposed between the second iron core 1432 and the third central cylinder 1431 , one end of the fixing structure 1433 is connected to the second iron core 1432 , and the other end of the fixing structure 1433 is connected to the third central cylinder 1431 . Specifically, the end faces of several fixed structures 1433 near the end of the third central cylinder 1431 are arc-shaped, and the end faces of the several fixed structures 1433 near the end of the third central cylinder 1431 form a second cylindrical space, and the third central cylinder 1431 It is at least partially disposed in the space of the second cylinder, so as to facilitate the stable connection of the fixing structure 1433 and the third central cylinder 1431 . The ends of the plurality of second iron cores 1432 close to the fixing structure 1433 are all second arc surfaces, and the ends of the plurality of fixing structures 1433 close to the second iron core 1432 are all third arc surfaces. The radius of the second arc surface is basically the same as that of the third arc surface, so as to facilitate the stable connection between the second iron core 1432 and the fixing structure 1433 . The end faces of the plurality of second iron cores 1432 near the end of the second protective layer 1532 are fourth arc surfaces, and the radius of the fourth arc surface is basically the same as that of the second protective layer 1532, so that the second iron cores 1432 and the first The connection or contact between the two protective layers 1532 is more stable. Through the above arrangement, the second iron core 1432 and the fixed structure 1433 can form a rib structure, so that the magnetic field in the pump channel mechanism 15 and the output of the electromagnetic pump 100 will not be affected, and the eddy current can be effectively suppressed, reducing the electromagnetic pump 100. Loss and temperature rise during work, thereby improving the efficiency and service life of the electromagnetic pump 100 . In addition, when the second iron core 1432 and the fixed structure 1433 form a rib structure, the eddy current distribution is no longer annular, but a small vortex is formed on the cross section of each rib, thereby blocking the circumferential passage of the eddy current and reducing the Eddy current loss. In addition, by setting the fixed structure 1433, the inner iron core 14 can be manufactured conveniently, the material of the inner iron core 14 can be saved, and the outer diameter of the inner iron core 14 of the electromagnetic pump 100 can be freely adjusted during the manufacturing process, thereby flexibly controlling the electromagnetic pump 100 in size.

In this embodiment, the number of second iron cores 1432 can be adjusted according to actual needs, the number of fixed structures 1433 can also be adjusted according to actual needs, and the ratio of the number of outer iron cores 13 to the number of second iron cores 1432 can be is 1, that is, the number of outer iron cores 13 is consistent with the number of second iron cores 1432 .

Specifically, the interval between two adjacent second iron cores 1432 is a second radian Ω, and the second radian Ω is greater than or equal to 10° and less than or equal to 36°. Wherein, the second radian Ω refers to the interval between two adjacent second iron cores 1422 in the circumferential direction. In this embodiment, the second radian Ω may also be set to be greater than or equal to 13° and less than or equal to 15°. In addition, in the region of the pump channel mechanism 15 corresponding to the radian where the second radian Ω is located, since there is no magnetic field in the above region, the liquid metal cannot generate induced current, and there is no thrust to push the liquid metal to move. Therefore, in the above region, it is necessary to set The sub-chamber structure 154 prevents liquid metal from circulating, thereby seriously affecting the performance of the electromagnetic pump 100 . Through the setting of the range of the second radian Ω above, the setting of the sub-chamber structure 154 can be made more reasonable, specifically, the volume of the sub-cavity structure 154 in the pump channel mechanism 15 can be made more reasonable, so as to prevent liquid metal circulation In some cases, the pump channel mechanism 15 can be used to transport more liquid metal, thereby improving the working efficiency and performance of the electromagnetic pump 100 .

Specifically, the diameter of the third central cylinder 1431 is set to a first diameter R1, and the diameter of the second iron core 1432 is set to a third diameter R3. Wherein, the third diameter R3 refers to the diameter of the second arc surface of the second iron core 1432 . More specifically, the ratio of the third diameter R3 to the first diameter R1 is set to be greater than or equal to 1.6 and less than or equal to 3.5. In this embodiment, the ratio of the third diameter R3 to the first diameter R1 is set to be greater than or equal to 2.3 and less than or equal to 2.8. Through the above configuration, sufficient magnetic force lines can be transmitted from the outer iron core 13 to the second iron core 1432 , thereby improving the electromagnetic performance of the electromagnetic pump 100 . In addition, when the electromagnetic pump 100 is running, magnetic pressure or magnetic pulling force will be generated in the radial direction of the electromagnetic pump 100. If the size of the second iron core 1432 is too large, the third central cylinder 1431 will not be able to support the large magnetic pressure, thereby This will cause the structure of the electromagnetic pump 100 to be destroyed from the inside and deformed, reducing the reliability of the electromagnetic pump 100 . Through the above arrangement, the size of the second iron core 1432 can be made smaller, thereby reducing the magnetic pressure on the third central cylinder 1431 , thereby making the structure of the electromagnetic pump 100 more stable and improving the reliability of the electromagnetic pump 100 .

Specifically, the diameter of the fixing structure 1433 is set to a fourth diameter R4, and the fourth diameter R4 refers to the diameter of the third arc surface of the fixing structure 1433 . A ratio of the fourth diameter R4 to the first diameter R1 is set to be greater than or equal to 1.1 and less than or equal to 1.5. In this embodiment, the ratio of the fourth diameter R4 to the first diameter R1 is set to be greater than or equal to 1.2 and less than or equal to 1.4. More specifically, the ratio of the fourth diameter R4 to the first diameter R1 is set to 1.3. Through the above configuration, the inner iron core 14 can be manufactured conveniently, the material of the inner iron core 14 can be saved, and the outer diameter of the inner iron core 14 of the electromagnetic pump 100 can be freely adjusted during the manufacturing process, thereby flexibly controlling the size of the electromagnetic pump 100 .

As an implementation manner, the pump body 11 may be a casing 112 or an outer rib assembly 113 .

As shown in FIGS. 9 to 11 , as an implementation manner, the casing 112 includes a first casing 1121 and a second casing 1122 . The second housing 1122 is at least partially disposed around the several outer iron cores 13 , that is, the several outer iron cores 13 are at least partially disposed in the second housing 1122 . The first case 1121 is disposed around the second case 1122 . The second shell 1122 is used to wrap several outer iron cores 13 so as to fix the several outer iron cores 13 . Specifically, a cooling mechanism 1123 is also provided on the second housing 1122 . The cooling mechanism 1123 is used for cooling the electromagnetic pump 100 . Specifically, the cooling mechanism 1123 may include a first cooling water channel 1123a and/or a second cooling water channel 1123b and/or a third cooling water channel 1123c, which are used to improve the cooling effect of the cooling mechanism 1123, thereby improving the heat dissipation effect and usage of the electromagnetic pump 100. life.

As shown in FIG. 9 , as an implementation manner, the first cooling water channel 1123a includes several first water channels 1123d and several first connecting water channels 1123e. The first water channel 1123d is disposed around the second housing 1122 , that is, the first water channel 1123d is disposed along the circumference of the second housing 1122 . The first connecting water channel 1123e is basically arranged along the axial direction of the second casing 1122 . A first connecting waterway 1123e is arranged between two adjacent first waterways 1123d, one end of the first connecting waterway 1123e is connected to one first waterway 1123d, and the other end of the first connecting waterway 1123e is connected to the adjacent first waterway 1123d, thereby Two adjacent first water channels 1123d are connected to realize circulation of cooling liquid. Specifically, the first casing 1121 is arranged around the second casing 1122, so that the first casing 1121 and the first cooling water channel 1123a can form a closed flow channel, so that the cooling liquid can flow in the first cooling water channel 1123a And will not cause leakage, thereby improving the sealing and cooling effect of the electromagnetic pump 100 .

As shown in FIG. 10 , as an implementation manner, the second cooling water channel 1123b includes several second water channels 1123f and several second connecting water channels 1123g. The second water channel 1123f is arranged along the axial direction of the second housing 1122 , that is, the second water channel 1123f is substantially parallel to the axis of the second housing 1122 . The second connecting water channel 1123g is substantially arranged along the circumferential direction of the second casing 1122 . A second connecting waterway 1123g is arranged between two adjacent second waterways 1123f, one end of the second connecting waterway 1123g is connected to one second waterway 1123f, and the other end of the second connecting waterway 1123g is connected to the adjacent second waterway 1123f, thereby Two adjacent second water channels 1123f are connected to realize circulation of cooling liquid. Specifically, the first casing 1121 is arranged around the second casing 1122, so that the first casing 1121 and the second cooling water passage 1123b can form a closed circulation water passage, so that the cooling liquid can flow in the second cooling water passage 1123b And will not cause leakage, thereby improving the sealing and cooling effect of the electromagnetic pump 100 .

As shown in FIG. 11 , as an implementation manner, the third cooling water channel 1123c includes a third water channel 1123h. The third water channel 1123h is substantially spirally arranged along the circumferential direction of the second housing 1122 , that is, the third water channel 1123h is substantially threaded and arranged on the second housing 1122 . Specifically, the first casing 1121 is arranged around the second casing 1122, so that the first casing 1121 and the third cooling water channel 1123c can form a closed flow channel, so that the cooling liquid can flow in the third cooling water channel 1123c And will not cause leakage, thereby improving the sealing and cooling effect of the electromagnetic pump 100 .

As shown in FIG. 12 , as an implementation, the outer rib assembly 113 is arranged on the outside of several outer iron cores 13 for fixing the several outer iron cores 13 . Specifically, the outer rib assembly 113 includes several annular ribs 1131 . Several annular ribs 1131 form a receiving space. Several outer iron cores 13 are at least partially disposed in the accommodation space. Several annular ribs 1131 are arranged along the axial direction of the electromagnetic pump 100, and the arrangement of several annular ribs 1131 can be uniform or uneven. That is, along the axial direction of the electromagnetic pump 100 , the distance between two adjacent annular ribs 1131 may be consistent or inconsistent. In this embodiment, the number of the annular ribs 1131 can be adjusted according to the axial length of the electromagnetic pump 100, and can also be continuously adjusted according to actual needs. Through the above settings, the disassembly of the outer rib assembly 113 can be made easier, that is, the outer rib assembly 113 can be completely disassembled without pressure; and because there is no heavy shell covering, the outer iron core 13 is directly in contact with the fluid, improving the cooling of the outer iron core 13 effect, thereby improving the heat dissipation effect of the electromagnetic pump 100 . In addition, through the above arrangement, the deformation of the electromagnetic pump 100 caused by the electromagnetic pulling force of the electromagnetic pump 100 can also be restrained, and the deformation of the electromagnetic pump 100 caused by the thermal expansion of the electromagnetic pump 100 can also be restrained.

Specifically, the thickness of the annular rib 1131 in the axial direction of the electromagnetic pump 100 is a first distance, and the interval between two adjacent annular ribs 1131 in the axial direction of the electromagnetic pump 100 is a second distance, the first distance and the second distance The sum is the third distance. Wherein, the third distance is the sum of the thickness of the annular rib 1131 in the axial direction of the electromagnetic pump 100 and the interval between two adjacent annular ribs 1131 in the axial direction of the electromagnetic pump 100 . A ratio of the first distance to the third distance is greater than or equal to 0.1 and less than or equal to 0.8. More specifically, the ratio of the first distance to the third distance is greater than or equal to 0.2 and less than or equal to 0.6. In this embodiment, the ratio of the first distance to the third distance may also be set to 0.3. Through the above arrangement, the processing difficulty of the annular rib 1131 can be easily reduced, and the structural strength of the annular rib 1131 can be improved, so that the displacement of the electromagnetic pump 100 in the axial direction can be limited, and the safety factor of the electromagnetic pump 100 can be improved.

As an implementation manner, the thickness of the annular rib 1131 in the axial direction of the electromagnetic pump 100 is basically the same, and at this time, the annular rib 1131 is in the first arrangement manner. When the annular rib 1131 is arranged in the first manner, the ratio of the first distance to the third distance is greater than or equal to 0.1 and less than or equal to 0.8. Specifically, the ratio of the first distance to the third distance may also be set to 0.3. Through the above arrangement, the processing difficulty of the annular rib 1131 can be easily reduced, and the structural strength of the annular rib 1131 can be improved, so that the displacement of the electromagnetic pump 100 in the axial direction can be limited, and the safety factor of the electromagnetic pump 100 can be improved.

As an implementation manner, the thickness of the annular rib 1131 in the axial direction of the electromagnetic pump 100 is inconsistent, and at this time, the annular rib 1131 is in the second arrangement manner. When the annular rib 1131 is arranged in the second manner, the ratio of the first distance to the third distance is greater than or equal to 0.2 and less than or equal to 0.8. Specifically, in a plane of symmetry 101 perpendicular to the axial direction of the electromagnetic pump 100 , the electromagnetic pump 100 is arranged substantially symmetrically with respect to the plane of symmetry 101 . When the annular rib 1131 is in the second setting mode, the thickness of the annular rib 1131 close to the symmetry plane 101 in the axial direction of the electromagnetic pump 100 is the fourth distance, and the thickness of the annular rib 1131 away from the symmetry plane 101 in the axial direction of the electromagnetic pump 100 is the fifth distance, and the fourth distance is greater than the fifth distance. Since the electromagnetic pump 100 operates at a high temperature, the temperature distribution along the axial direction of the electromagnetic pump 100 is uneven, so the thermal expansion of the electromagnetic pump 100 is unevenly distributed along the axial direction, and the thermal expansion is large in the middle of the electromagnetic pump 100. The two ends of 100 are small. Therefore, through the above configuration, the thickness of the annular rib 1131 located in the middle of the electromagnetic pump 100 can be made larger, thereby increasing the strength of the annular rib 1131 and further improving the working stability of the electromagnetic pump 100 . In addition, because the electromagnetic pump 100 will vibrate during operation, so that the electromagnetic pump 100 is displaced in the axial direction, through the above arrangement, the thickness of the annular rib 1131 located in the middle of the electromagnetic pump 100 can be made larger, so that The displacement of the electromagnetic pump 100 in the axial direction is better limited, so that the electromagnetic pump 100 has no displacement in other directions, and can cooperate with a corresponding buffer structure, thereby greatly improving the safety factor of the electromagnetic pump 100 .

Specifically, the sum of the fourth distance and the second distance is the sixth distance, and the ratio of the fourth distance to the sixth distance is greater than or equal to 0.5 and less than or equal to 0.8. In this embodiment, the ratio of the fourth distance to the sixth distance is greater than or equal to 0.6 and less than or equal to 0.7. Through the above setting, the thickness of the annular rib 1131 located in the middle of the electromagnetic pump 100 can be made larger, thereby increasing the strength of the annular rib 1131, thereby improving the working stability of the electromagnetic pump 100, and can better limit the electromagnetic pump 100 in the axial direction. The upward displacement greatly improves the safety factor of the electromagnetic pump 100 .

Specifically, the sum of the fifth distance and the second distance is the seventh distance, the ratio of the fifth distance to the seventh distance is greater than or equal to 0.2, and the fifth distance is smaller than the fourth distance. Through the above arrangement, the thickness of the annular rib 1131 away from the symmetry plane 101 can be made smaller, so that the cost and weight of the annular rib 1131 can be saved under the condition of satisfying the strength of the annular rib 1131, thereby realizing the weight reduction of the electromagnetic pump 100, The space utilization rate of the electromagnetic pump 100 is improved. In addition, through the above arrangement, the covering parts on the outer side of the outer iron core 13 can be reduced, thereby improving the cooling effect of the outer iron core 13 , and further improving the heat dissipation effect of the electromagnetic pump 100 .

In this embodiment, the interference between the annular rib 1131 close to the symmetrical plane 101 and the outer core 13 in the radial direction of the electromagnetic pump 100 is the first interference, and the annular rib 1131 far away from the symmetrical plane 101 and the outer iron core The interference between 13 in the radial direction of the electromagnetic pump 100 is the second interference, and the first interference is greater than the second interference. Since the electromagnetic pump 100 operates at a high temperature, the temperature is unevenly distributed along the axial direction of the electromagnetic pump 100, so the thermal expansion of the electromagnetic pump 100 is unevenly distributed along the axial direction. The end is small, therefore, through the above-mentioned setting, the interference of the annular rib 1131 located in the middle of the electromagnetic pump 100 can be made larger, which is conducive to increasing the strength of the annular rib 1131, so that when the electromagnetic pump 100 is manufactured, the annular rib 1131 and the outer There are different interferences between the iron cores 13, that is, the interference of the annular rib 1131 located in the middle of the electromagnetic pump 100 is large, and the interference of the annular rib 1131 located at both ends of the electromagnetic pump 100 is small, thereby improving the safety of the electromagnetic pump 100 factor and job stability. Wherein, along the axial direction of the electromagnetic pump 100 , the values of the interference are set symmetrically to the center, that is, the interference of the annular ribs 1131 arranged substantially symmetrically with respect to the plane of symmetry 101 is basically the same.

As an implementation, when the distance between two adjacent annular ribs 1131 is inconsistent, the distance between the annular ribs 1131 in the axial direction of the electromagnetic pump 100 is set symmetrically with respect to the center of the electromagnetic pump 100, that is, it is basically symmetrical with respect to the plane of symmetry 101 The distances between the set annular ribs 1131 are basically the same. Through the above arrangement, the annular rib 1131 can be arranged substantially symmetrically with respect to the electromagnetic pump 100 , thereby making the structure of the electromagnetic pump 100 more stable and improving the working stability of the electromagnetic pump 100 .

As shown in FIG. 13 , as an implementation manner, when the pump body 11 is the casing 112 , the pump body 11 further includes a first end cover 1124 . The first end caps 1124 are disposed on two ends of the housing 112 . Specifically, the two ends of the housing 112 are provided with connecting parts 1125 , and the connecting parts 1125 are arranged around the circumference of the housing 112 . The housing 112 is connected to the first end cover 1124 through a connecting portion 1125 . The first end cover 1124 is provided with a first through hole, and the first through hole is sleeved on the pump channel mechanism 15 , that is, the first through hole is arranged around the pump channel mechanism 15 . Specifically, the diameter of the first through hole is basically consistent with the diameter of the first protective layer 1531 , so as to facilitate the stable connection between the first end cover 1124 and the pump channel mechanism 15 . In this embodiment, the connection part 1125 may be disposed at both ends of the first housing 1121 and/or the second housing 1122 .

The outer surface of the first housing 1121 is provided with several reinforcing ribs 1121a, and the reinforcing ribs 1121a are used to strengthen the rigidity and strength of the housing 112 . Several reinforcing ribs 1121a can be evenly distributed on the first shell 1121, so as to enhance the rigidity and strength of the first shell 1121 as a whole. Several reinforcing ribs 1121a may also be concentratedly distributed on the first shell 1121 , so as to enhance the local rigidity and strength of the first shell 1121 , thereby avoiding the damage caused by excessive local force on the first shell 1121 . Specifically, the reinforcing rib 1121a can be made of stainless steel, and the number of the reinforcing rib 1121a can be adjusted according to actual needs. In this embodiment, the inner radius of the reinforcing rib 1121a is equal to the outer radius of the first housing 1121, and the outer radius of the reinforcing rib 1121a can be adjusted according to actual needs. Wherein, the inner radius of the reinforcing rib 1121a refers to the distance from the surface of the reinforcing rib 1121a close to the first housing 1121 to the center of the circle, the outer radius of the reinforcing rib 1121a is the distance from the surface of the reinforcing rib 1121a away from the first housing 1121 to the center of the circle, the first The outer radius of the housing 1121 refers to the distance from the surface of the housing 112 close to the rib 1121 a to the center of the circle. Through the above arrangement, the structure of the casing 112 can be made more stable, thereby improving the structural stability of the electromagnetic pump 100 .

In this embodiment, the connecting portion 1125 is provided with a first installation hole 1125a, and the first end cover 1124 is provided with a second installation hole 1124b. The first installation hole 1125 a and the second installation hole 1124 b are connected by bolts, so that the first end cover 1124 is stably connected to the connecting portion 1125 , and furthermore the first end cover 1124 is stably connected to the housing 112 . Wherein, the housing 112 may be made of stainless steel, and the first end cover 1124 may be made of stainless steel. The cross-sectional shape of the first end cap 1124 may be circular or square. It can be understood that the cross-sectional shape of the first end cap 1124 can also be other shapes, which can be adjusted according to actual needs.

In this embodiment, several outer iron cores 13 and the casing 112 are integrally formed, the connecting portion 1125 and the outer iron core 13 are integrally formed, and the reinforcing rib 1121a and the casing 112 are integrally formed. At this time, the casing 112, the outer iron core 13, and the winding 12 are integrally formed. During the production process, the casing 112, the outer iron core 13, and the winding 12 can be immersed in insulating varnish, thereby improving the safety of the electromagnetic pump 100.

In this embodiment, several outer iron cores 13 and the casing 112 may also be connected by welding, and the connecting portion 1125 and the outer iron core 13 may also be connected by welding. Through the above settings, the cross-section of the cylindrical space formed by several outer iron cores 13, that is, the center of the first circle basically coincides with the center of the housing 112, thereby realizing the concentricity of the electromagnetic pump 100 and effectively reducing the occurrence of The possibility of unilateral magnetic pressure further improves the stability of the electromagnetic pump 100, which is beneficial to the improvement of the flow rate and efficiency of the electromagnetic pump 100.

As shown in Figure 17, as an implementation, the two ends of the inner iron core 14 are also provided with second end caps 114, the second end caps 114 are used to seal the inner iron core 14, so that the inner iron core 14 and the flow channel 151 The liquid metal in the iron core 14 is separated even if the inner iron core 14 is not in contact with the liquid metal. In addition, the second end cover 114 can also be formed with a first channel for liquid metal to flow, so that when the liquid metal flows out of the circulation channel 151, it can flow out of the electromagnetic pump 100 along the first channel; When flowing into the 151, it can flow into the electromagnetic pump 100 along the first channel. Through the above arrangement, the flow of liquid metal can be facilitated, thereby improving the flow rate and efficiency of the electromagnetic pump 100 .

As an implementation manner, the central cylinder includes a first central cylinder 1411 or a second central cylinder 1421 or a third central cylinder 1431 . The central cylinder includes at least a first state or a second state or a third state.

In the first state, the central cylinder may be disposed inside the second end cap 114 . Wherein, the inner side of the second end cover 114 refers to the side of the second end cover 114 close to the sector 1412 of the iron core.

As shown in FIG. 13 , in the second state, the central column can pass through the second end cover 114 and be at least partially disposed outside the second end cover 114 , and the pump groove mechanism 15 extends to the second end cover 100 along the axial direction of the electromagnetic pump 100 . Between the two end covers 114 and the central cylinder, that is, along the axial direction of the electromagnetic pump 100, the length of the pump groove mechanism 15 is greater than the length of the inner iron core 14, and the length of the pump groove mechanism 15 is shorter than the length of the central cylinder. Wherein, the outer side of the second end cover 114 refers to the side of the second end cover 114 away from the inner iron core 14 . Specifically, the first pump groove wall 1521 extends along the axial direction of the electromagnetic pump 100 to between the second end cover 114 and the central cylinder, and the first protective layer 1531 extends along the axial direction of the electromagnetic pump 100 to the second end cover 114 and the central cylinder. Neither the second pump trench wall 1522 nor the second protective layer 1532 extends along the axial direction of the electromagnetic pump 100 . The second pump groove wall 1522 is connected to the second end cover 114 , so as to realize the sealing of the second end cover 114 to the inner iron core 14 .

Specifically, in the second state, the pump body 11 further includes a connection mechanism 115 and a first outer pipe 116 . The connecting mechanism 115 is connected to the first end cover 1124 , and the first outer pipe 116 is connected to the connecting mechanism 115 , so that the first end cover 1124 and the first outer pipe 116 are connected through the connecting mechanism 115 . At this time, when the liquid metal flows out from the circulation channel 151, it flows into the first outer pipeline 116 through the connecting mechanism 115, so that the liquid metal flows out of the electromagnetic pump 100; when the liquid metal flows in from the circulation channel 151, it passes through the first outer pipeline 116 flows the liquid metal from the electromagnetic pump 100 into the connection mechanism 115 , and flows into the circulation channel 151 through the connection mechanism 115 . Wherein, the connection mechanism 115 can be a flange, so as to facilitate disassembly and installation of the electromagnetic pump 100 , and the connection between the first outer pipe 116 and the pump channel mechanism 15 can be realized through nuts, thereby improving the assembly of the electromagnetic pump 100 . In this embodiment, when the liquid metal flows out of the circulation channel 151, the liquid metal flows to the connecting mechanism 115 through the first channel formed by the second end cover 114, and flows into the first outer pipe 116 through the connecting mechanism 115, So that the liquid metal flows out of the electromagnetic pump 100; when the liquid metal flows in from the flow channel 151, the liquid metal flows out from the electromagnetic pump 100 to the connecting mechanism 115 through the first outer pipe 116, and flows to the second end cover through the connecting mechanism 115 114 , and finally flows from the first channel formed by the second end cap 114 into the circulation channel 151 . Since the electromagnetic pump 100 will experience noise and vibration during the operation of the electromagnetic pump 100, through the above settings, the structure adjacent to the connecting mechanism 115 and the connecting mechanism 115 can provide space for the axial vibration of the electromagnetic pump 100, that is, the flange The structure adjacent to the flange cooperates and provides space for the electromagnetic pump 100 to vibrate axially, thereby enhancing the safety of the electromagnetic pump 100 . In addition, the temperature of the electromagnetic pump 100 is extremely high during operation, and the materials used in the electromagnetic pump 100 will thermally expand. Thermal expansion provides space, increasing the safety of the electromagnetic pump 100 .

More specifically, the connecting mechanism 115 may be a trapezoidal flange. Through the above settings, the pipe diameter of the trapezoidal flange close to the first outer pipe 116 can be arbitrarily set, so that the electromagnetic pump 100 with a pump channel mechanism 15 of a fixed size can be connected to the first outer pipe 116 of different pipe diameters, thereby improving the connection. Versatility of mechanism 115 . In addition, setting the connecting mechanism 115 as a trapezoidal flange can buffer the liquid metal to a certain extent, increase the stability of the liquid metal, and improve the safety margin of the electromagnetic pump 100 .

In this embodiment, the connecting mechanism 115 is made of silicon nitride, so that when the connecting mechanism 115 is in contact with high-temperature liquid metal, the high temperature resistance and corrosion resistance of the connecting mechanism 115 can be improved.

As shown in FIG. 14, in the third state, the first pump trench wall 1521 and the first protective layer 1531 extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the first pump trench wall 1521 and the first protective layer 1531 are substantially unanimous. The second pump trench wall 1522 and the first protective layer 1531 do not extend. The axial length of the first pump groove wall 1521 is greater than the axial length of the second pump groove wall 1522 , and the axial length of the first protection layer 1531 is greater than the axial length of the first protection layer 1531 . Specifically, the first outer wall layer 155 is formed after the first pump trench wall 1521 and the first protective layer 1531 are extended. The end of the first outer wall layer 155 away from the inner iron core 14 gradually gathers toward the axial direction of the electromagnetic pump 100 until a pipe opening is formed at the end of the first outer wall layer 155 away from the inner iron core 14 . At this time, the pump body 11 also includes a second outer pipe 117 . The second outer pipe 117 is connected to the pipe port. When the liquid metal flows out from the flow channel 151, it flows into the second outer pipe 117 through the first outer wall layer 155, so that the liquid metal flows out of the electromagnetic pump 100; when the liquid metal flows in from the flow channel 151, it passes through the second outer pipe 117 flows the liquid metal from the electromagnetic pump 100 into the first outer wall layer 155 , and flows into the circulation channel 151 through the first outer wall layer 155 . Since the electromagnetic pump 100 will experience noise and vibration during the operation of the electromagnetic pump 100, through the above arrangement, the structure adjacent to the first outer wall layer 155 and the first outer wall layer 155 can provide space for the axial vibration of the electromagnetic pump 100, thereby The safety of the electromagnetic pump 100 is enhanced. In addition, the temperature of the electromagnetic pump 100 is extremely high during operation, and the materials used in the electromagnetic pump 100 will thermally expand. The thermal expansion of the materials used provides space, improving the safety of the electromagnetic pump 100 . Furthermore, by setting the first outer wall layer 155 formed after the extension of the first pump trench wall 1521 and the first protective layer 1531, the electromagnetic pump 100 with the pump trench mechanism 15 of a fixed size can be connected to the second outer wall layer 155 with different pipe diameters. pipeline 117, thereby improving the versatility of the connecting mechanism 115; The circulation problem of the electromagnetic pump 100 is improved, thereby improving the flow rate and efficiency of the electromagnetic pump 100, thereby improving the working effect and working stability of the electromagnetic pump 100.

It can be understood that the first outer wall layer 155 may also be the first pump groove wall 1521 or the first protective layer 1531 extending along the axial direction of the electromagnetic pump 100 alone.

In this embodiment, when the liquid metal flows out of the circulation channel 151, the liquid metal flows to the first outer wall layer 155 through the first channel formed by the second end cover 114, and then flows to the second outer wall layer 155 through the first outer wall layer 155. pipeline 117, so that the liquid metal flows out of the electromagnetic pump 100; when the liquid metal flows in from the flow channel 151, the liquid metal flows out from the electromagnetic pump 100 to the first outer wall layer 155 through the second outer pipeline 117, and passes through the first outer wall The layer 155 flows to the first channel formed by the second end cap 114 , and finally flows through the first channel into the flow channel 151 .

As shown in FIG. 8 , FIG. 15 to FIG. 18 , as an implementation manner, the outer iron core 13 includes a first outer iron core 131 or a second outer iron core 132 or a third outer iron core 133 .

As shown in FIG. 8 , as an implementation, several first outer iron cores 131 are at least partially arranged around the pump ditch mechanism 15 . Specifically, the first outer iron cores 131 are arranged in the shape of ribs, that is, there is a space between adjacent first outer iron cores 131 . The plurality of first outer iron cores 131 are arranged in an annular array with the center of the first circle, so as to reduce the eddy current and improve the flow rate and efficiency of the electromagnetic pump 100 .

As shown in FIG. 15 and FIG. 16 , as an implementation, several support structures 134 are arranged between several second outer iron cores 132 . The number of supporting structures 134 is the same as the number of the second outer iron core 132 . That is, a support structure 134 is provided between two adjacent second outer iron cores 132 . The support structure 134 is used to support the plurality of second outer iron cores 132 , so that the plurality of second outer iron cores 132 will not change under the action of magnetic pulling force, thereby improving the strength and stability of the electromagnetic pump 100 . Specifically, the support structure 134 includes a first support 1341 and a second support 1342 . The yokes of several second outer iron cores 132 are connected by a first support 1341 , that is, the yokes of two adjacent second outer iron cores 132 are connected by a first support 1341 . The teeth of several second outer iron cores 132 are connected by a second support 1342 , that is, the teeth of two adjacent second outer iron cores 132 are connected by a second support 1342 . The yoke of the second outer iron core 132 and the teeth of the second outer iron core 132 are integrally formed. The first support 1341 and the second support 1342 can be integrally formed, and the first support 1341 and the second support 1342 can also be abutted or connected, that is, the first support 1341 and the second support 1342 are attached to each other. The yokes of several second outer iron cores 132 and several first supports 1341 form a first torus whose cross section is a ring, and the center of the cross section of the first torus and the center of circle of the inner iron core 14 are basically coincide. The teeth of several second outer iron cores 132 and several second supports 1342 form a second torus whose cross section is a ring, and the center of the cross section of the second torus is substantially the same as the center of circle of the inner iron core 14. coincide. That is, the axis of the first torus, the axis of the second torus, and the axis of the electromagnetic pump 100 are basically coincident. Through the above configuration, the concentricity of the electromagnetic pump 100 can be realized, and the possibility of unilateral magnetic pressure can be effectively reduced, thereby improving the stability of the electromagnetic pump 100 . In this embodiment, the first torus is arranged around the second torus, that is, the second torus is arranged in the first torus. The first torus and the second torus basically form a substantially closed torus. Wherein, both the first support 1341 and the second support 1342 can be made of stainless steel, so as to increase the rigidity of the second outer iron core 132 , and further increase the rigidity of the electromagnetic pump 100 . The thickness of the first support 1341 and the second support 1342 can be the first thickness, and the first thickness can be adjusted according to actual needs, so as to ensure the arrangement space of the winding 12 on the second outer iron core 132 . Wherein, the first thickness refers to the length of the first support 1341 and the second support 1342 in the axial direction of the electromagnetic pump 100 . Through the above arrangement, several second outer iron cores 132 can be formed as a whole through the support structure 134 , thereby increasing the heat dissipation area of the second outer iron core 132 and improving the heat dissipation effect of the second outer iron core 132 . In addition, through the above arrangement, the problem of loss and heat generation can be alleviated, thereby improving the cooling effect of the electromagnetic pump 100 .

In this embodiment, the support structure 134 further includes a third support 1343 . A third support 1343 is provided between two adjacent teeth of the plurality of second outer iron cores 132 along the axial direction of the electromagnetic pump 100 . The thickness of the third support 1343 is the second thickness, and the second thickness can be adjusted according to actual needs. During the working process of the electromagnetic pump 100 , an axial force may be generated, which may cause deformation of the teeth of several second outer iron cores 132 , thereby shortening the service life of the electromagnetic pump 100 and reducing the safety of the electromagnetic pump 100 . The third support 1343 can be used to support the teeth of several second outer iron cores 132, thereby reducing the impact of axial force on the teeth of several second outer iron cores 132, thereby improving the service life and the service life of the electromagnetic pump 100. safety. That is, the third support 1343 is used to counteract the axial force on the teeth of the second outer iron core 132 . Wherein, the third support 1343 can also be made of stainless steel, so as to increase the rigidity of the second outer iron core 132 , and further increase the rigidity of the electromagnetic pump 100 .

As shown in FIG. 17 and FIG. 18 , as an implementation manner, there are several third outer iron cores 133 , and each third outer iron core 133 includes a yoke ring 1331 and a toothed yoke ring 1332 . The yoke ring 1331 and the tooth yoke ring 1332 are stacked, that is, the tooth yoke ring 1332 is arranged between two adjacent yoke rings 1331 , and the yoke ring 1331 is arranged between two adjacent tooth yoke rings 1332 . Specifically, the toothed yoke ring 1332 includes several second laminations 1332a, that is, the toothed yoke ring 1332 is formed by stacking several second laminations 1332a. Adjacent second laminations 1332a can be glued and fixed by glue, or can be fixedly connected by other methods. Wherein, the second lamination 1332a can be made of silicon steel sheet, and the yoke ring 1331 can be made of silicon steel material. In this embodiment, the yoke ring 1331 is basically a torus, and the tooth yoke ring 1332 is also basically a torus. The outer diameter of the tooth yoke ring 1332 is basically the same as that of the yoke ring 1331 . The inner diameter of the tooth yoke ring 1332 is smaller than that of the yoke ring 1331 , so that the tooth yoke ring 1332 forms a space for placing the winding 12 , which facilitates the arrangement of the winding 12 .

In this embodiment, when the magnetic flux passes through the yoke ring 1331, most of the magnetic circuit is axial. If it is made in the form of axial laminations, the axial reluctance will be increased. Therefore, the yoke ring 1331 uses The overall structure is beneficial to reduce the reluctance of the magnetic flux passing through the yoke of the third outer iron core 133 and is beneficial to the distribution of the magnetic field. The magnetic flux on the magnetic circuit of the yoke ring 1332 is basically in the radial direction, so the use of the second laminations 1332a in the axial direction of the yoke ring 1332 will not cause too much influence on the radial reluctance. In addition, through the above arrangement, the eddy current can only flow in the circumferential direction on a certain second lamination 1332a, which reduces the amount of current flowing in the circumferential direction.

In this embodiment, the third outer iron core 133 further includes an isolation layer 1333 . The partition layer 1333 extends substantially along the axial direction of the electromagnetic pump 100 . Specifically, the isolation layer 1333 is at least partially disposed in the tooth yoke ring 1332 and at least partially disposed in the yoke ring 1331 . When the partition layer 1333 is at least partially disposed in the tooth yoke ring 1332, the length of the partition layer 1333 along the radial direction of the electromagnetic pump 100 is the first length, and the length of the tooth yoke ring 1332 along the radial direction of the electromagnetic pump 100 is the second length. length, the first length and the second length are basically the same. When the partition layer 1333 is at least partially disposed in the yoke ring 1331, the length of the partition layer 1333 along the radial direction of the electromagnetic pump 100 is the third length, and the length of the yoke ring 1331 along the radial direction of the electromagnetic pump 100 is the fourth length, The third length is basically the same as the fourth length. Among them, the isolation layer 1333 can be made of magnetically conductive and nonconductive materials, that is, insulating and magnetically conductive materials, such as ferrite, etc., so that the size of the circumferential eddy current can be reduced, and at the same time, the circumferential uniformity of the magnetic field is ensured, so that the fluid does not Circulation occurs.

As shown in FIGS. 19 to 21 , as an implementation, the electromagnetic pump 100 further includes a support assembly 16 for supporting the pump trench wall 152 or the protective layer 153 , thereby improving the stability of the flow channel 151 . Wherein, the supporting component 16 can be made of ceramic material. One end of the support assembly 16 is connected or abutted against the central cylinder, and the other end of the support assembly 16 is connected or abutted against the pump trench wall 152 or the protective layer 153 . The support assembly 16 is substantially arranged around the central cylinder, and the support assembly 16 is substantially rib-shaped. Through the above arrangement, the support assembly 16 can be directly fixedly connected or abutted on the central column, and the support assembly 16 is connected or abutted on the pump trench wall 152 or the protective layer 153, so that the pump trench wall 152 or the protective layer 153 is protected. The force is reduced, and the stability of the flow passage 151 is improved, thereby improving the stability of the electromagnetic pump 100 . It can be understood that the support assembly 16 can also be integrally formed with the central cylinder, or can be connected with the central cylinder through other forms of connection. The support assembly 16 can be fixedly connected to the pump trench wall 152 or the protective layer 153 , or can abut against the pump trench wall 152 or the protective layer 153 , as long as the supporting function of the support assembly 16 is satisfied.

In this embodiment, the support assembly 16 may be the first support 161 or the second support 162 or the third support 163 .

As shown in FIG. 19 , as an implementation, one end of the first support 161 is connected to the central cylinder, and the other end of the first support 161 passes through the second protective layer 1532 and the second pump trench wall 1522 in turn and connects or abuts Connect to the first pump trench wall 1521. The first support member 161 is substantially disposed around the central cylinder, and the first support member 161 is substantially rib-shaped. Through the above arrangement, the first support member 161 can be directly fixedly connected or abutted on the central column, and the first support member 161 is connected or abutted on the first pump groove wall 1521, so that the second pump groove wall 1522 is subjected to The force is reduced, and the strength of the first pump groove wall 1521 is improved, the stability of the flow channel 151 is improved, and the stability of the electromagnetic pump 100 is further improved. It can be understood that the first supporting member 161 can be integrally formed with the central cylinder, or can be connected with the central cylinder through other forms of connection. The first supporting member 161 can be connected with the first pump groove wall 1521 , and can also abut against the first pump groove wall 1521 .

Specifically, the number of the first support members 161 can be adjusted according to actual needs. Specifically, several second through holes are disposed on the second protection layer 1532 , and the several second through holes are basically disposed around the second protection layer 1532 . Several third through holes are arranged on the second pump ditch wall 1522 , and the several third through holes are basically arranged around the second pump ditch wall 1522 . The number of the second through holes, the number of the third through holes, and the number of the first support members 161 are consistent. The position of the second through hole is basically the same as that of the third through hole, so that the end of the first support member 161 away from the central cylinder passes through the second through hole and the third through hole to connect or abut against the first pump groove wall 1521 . In this embodiment, the first support member 161 is interference fit with the second through hole, and the first support member 161 is interference fit with the third through hole, so as to prevent the liquid metal in the circulation channel 151 from passing through the second through hole and/or Or leakage in the third through hole, thereby improving the safety of the electromagnetic pump 100 . Wherein, the first supporting member 161 may be made of ceramic material.

In this embodiment, the end surface of the first support member 161 connected to one end of the central cylinder is an arc surface, and the end surfaces of several first support members 161 connected to one end of the central cylinder basically form a cylindrical space, so that several first supports The piece 161 can fit more closely with the central cylinder, thereby improving the stable connection between the first supporting piece 161 and the central cylinder. The end surface of the end of the first support member 161 connected to or abutted against the first pump groove wall 1521 is an arc surface, and the end surfaces of the ends of several first support members 161 connected to or abutted against the first pump groove wall 1521 basically form a cylindrical space , so that several first support members 161 can fit more closely with the first pump trench wall 1521, improve the stable connection or abutment between the first support member 161 and the first pump trench wall 1521, and further improve the first support member 161 supporting role.

In this embodiment, both the pump groove wall 152 and the protective layer 153 extend along the axial direction of the electromagnetic pump 100 , and the extending lengths of the pump groove wall 152 and the protective layer 153 are basically the same. Several second through holes are arranged on the extension of the second protective layer 1532, and several third through holes are arranged on the extension of the second pump trench wall 1522, and the first support member 161 passes through the second through holes and the second through hole. The three through holes are then connected or abutted against the extension of the first pump groove wall 1521 .

It can be understood that the pump groove wall 152 may extend along the axial direction of the electromagnetic pump 100 , but the protective layer 153 may not extend along the axial direction of the electromagnetic pump 100 . At this time, several second through holes are not provided on the second protective layer 1532, and several third through holes are provided on the extension of the second pump trench wall 1522, and the first support member 161 passes through, behind the third through holes. It is connected or abutted on the extension of the first pump groove wall 1521 .

It can be understood that both the pump trench wall 152 and the first protective layer 1531 can extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the pump trench wall 152 and the first protective layer 1531 are basically the same, but the second protective layer 1532 can be different Extends in the axial direction of the electromagnetic pump 100 . At this time, several second through holes are not provided on the second protective layer 1532, and several third through holes are provided on the extension of the second pump trench wall 1522, and the first support member 161 passes through, behind the third through holes. It is connected or abutted on the extension of the first pump groove wall 1521 .

It can be understood that both the pump trench wall 152 and the second protective layer 1532 can extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the pump trench wall 152 and the second protective layer 1532 are basically the same, but the first protective layer 1531 can be different Extends in the axial direction of the electromagnetic pump 100 . At this time, several second through holes are arranged on the extension of the second protective layer 1532, several third through holes are arranged on the extension of the second pump trench wall 1522, and the first support member 161 passes through the second through hole. The hole and the third through hole are then connected or abutted against the extension of the first pump trench wall 1521 .

As shown in FIG. 20 , as an implementation, one end of the second support member 162 is connected to the central cylinder, and the other end of the second support member 162 is connected or abutted against the second protective layer 1532 . The second supporting member 162 is substantially disposed around the central cylinder, and the second supporting member 162 is substantially rib-shaped. Through the above setting, the second support member 162 can be directly fixedly connected or abutted on the central column, and the second support member 162 is connected or abutted on the second protective layer 1532, so that the second pump trench wall 1522 and the second The stress of the protective layer 1532 is reduced, and the strength of the second pump trench wall 1522 and the second protective layer 1532 is improved, and the stability of the flow channel 151 is improved, thereby improving the stability of the electromagnetic pump 100 . It can be understood that the second supporting member 162 can be integrally formed with the central cylinder, or can be connected with the central cylinder through other forms of connection. The second supporting member 162 can be connected to the second protective layer 1532 , and can also abut against the second protective layer 1532 .

Specifically, the number of the second support members 162 can be adjusted according to actual needs. Wherein, the second supporting member 162 may be made of ceramic material.

In this embodiment, the end face of the second support member 162 connected to one end of the central cylinder is an arc surface, and the end faces of several second support members 162 connected to one end of the central cylinder basically form a cylindrical space, so that several second supports The piece 162 can fit more closely with the central cylinder, thereby improving the stable connection between the second supporting piece 162 and the central cylinder. The end face of one end of the second support member 162 connected to or abutted against the second protective layer 1532 is an arc surface, and the end faces of the ends of several second support members 162 connected with or abutted against the second protective layer 1532 basically form a cylindrical space, thereby The several second supports 162 can be more closely attached to the second protective layer 1532 , so as to improve the stable connection or abutment between the second supports 162 and the second protective layer 1532 , thereby improving the supporting function of the second supports 162 .

In this embodiment, both the pump groove wall 152 and the protective layer 153 extend along the axial direction of the electromagnetic pump 100 , and the extending lengths of the pump groove wall 152 and the protective layer 153 are basically the same. The second supporting member 162 is connected or abutted against the extension of the second protection layer 1532 . Specifically, both the second protection layer 1532 and the second pump groove wall 1522 extend along the axial direction of the electromagnetic pump 100 , and the extension lengths of the second protection layer 1532 and the second pump groove wall 1522 are substantially the same. The first protective layer 1531 and the first pump groove wall 1521 can both extend along the axial direction of the electromagnetic pump 100, and the first protective layer 1531, the first pump groove wall 1521, the second protective layer 1532 and the second pump groove wall 1522 The extension length is basically the same. Or the extension lengths of the first protection layer 1531 and the first pump trench wall 1521 are basically the same, and the extension length of the first protection layer 1531 is smaller than the extension length of the second protection layer 1532 .

It can be understood that both the second protective layer 1532 and the second pump groove wall 1522 extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the second protective layer 1532 and the second pump groove wall 1522 are basically the same, but the first protective layer 1531 and the first pump groove wall 1521 may not extend along the axial direction of the electromagnetic pump 100 .

It can be understood that both the second protective layer 1532 and the pump trench wall 152 extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the second protective layer 1532 and the pump trench wall 152 are basically the same, but the first protective layer 1531 may not extend along the axial direction of the electromagnetic pump 100. The axial extension of the electromagnetic pump 100 .

It can be understood that both the first protective layer 1531 and the pump trench wall 152 extend along the axial direction of the electromagnetic pump 100, and the extension lengths of the first protective layer 1531 and the pump trench wall 152 are basically the same, but the second protective layer 1532 may not extend along the axial direction of the electromagnetic pump 100. The axial extension of the electromagnetic pump 100 . At this moment, the second supporting member 162 is connected or abutted against the extension of the second pump groove wall 1522 .

It can be understood that the pump groove wall 152 extends along the axial direction of the electromagnetic pump 100 , but the protective layer 153 may not extend along the axial direction of the electromagnetic pump 100 . At this moment, the second supporting member 162 is connected or abutted against the extension of the second pump groove wall 1522 .

In summary, the second pump groove wall 1522 needs to extend along the axial direction of the electromagnetic pump 100, and the first pump groove wall 1521 and/or the first protective layer 1531 and/or the second protective layer 1532 may not extend along the axial direction of the electromagnetic pump 100. to extend. And when the second protective layer 1532 does not extend along the axial direction of the electromagnetic pump 100 , the second supporting member 162 is connected or abutted against the extension of the second pump groove wall 1522 . When the second protection layer 1532 extends along the axial direction of the electromagnetic pump 100 , the second support member 162 is connected or abutted against the extension of the second protection layer 1532 .

As shown in FIG. 21 , as an implementation, one end of the third support member 163 is connected to the central cylinder, and the other end of the third support member 163 is connected or abutted against the first pump trench wall 1521 . The third supporting member 163 is substantially disposed around the central cylinder, and the third supporting member 163 is substantially rib-shaped. Through the above arrangement, the third support member 163 can be directly fixedly connected or abutted on the central column, and the third support member 163 is connected or abutted on the first pump groove wall 1521, so that the first pump groove wall 1521 and the second pump groove wall 1521 The force of the first protective layer 1531 is reduced, and the strength of the first pump groove wall 1521 and the first protective layer 1531 is increased, and the stability of the flow channel 151 is improved, thereby improving the stability of the electromagnetic pump 100 . It can be understood that the third supporting member 163 can be integrally formed with the central cylinder, or can be connected with the central cylinder through other forms of connection. The third supporting member 163 can be connected to the first pump groove wall 1521 , and can also abut against the first pump groove wall 1521 .

Specifically, the number of the third support members 163 can be adjusted according to actual needs. Wherein, the third supporting member 163 may be made of ceramic material.

In this embodiment, the end face of the third support member 163 connected to one end of the central cylinder is an arc surface, and the end faces of several third support members 163 connected to one end of the central cylinder basically form a cylindrical space, so that several third supports The piece 163 can fit more closely with the central cylinder, thereby improving the stable connection between the third supporting piece 163 and the central cylinder. The end surface of the end of the third support member 163 connected to or abutted against the first pump groove wall 1521 is an arc surface, and the end surface of one end of several third support members 163 connected with or abutted against the first pump groove wall 1521 basically forms a cylindrical space , so that several third support members 163 can fit more closely with the first pump trench wall 1521, improve the stable connection or abutment between the third support member 163 and the first pump trench wall 1521, and further improve the third support member 163 supporting role.

In this embodiment, both the first pump trench wall 1521 and the first protective layer 1531 extend along the axial direction of the electromagnetic pump 100 , and the extension lengths of the first pump trench wall 1521 and the first protective layer 1531 are substantially the same. The third supporting member 163 is connected or abutted against the extension of the first pump groove wall 1521 .

It can be understood that the first pump groove wall 1521 extends along the axial direction of the electromagnetic pump 100 , and the first pump groove wall 1521 and/or the first protective layer 1531 and/or the second protective layer 1532 may not extend along the axial direction of the electromagnetic pump 100 extend.

As an implementation, when the outer iron core 13 includes the first outer iron core 131 or the second outer iron core 132, the pump channel mechanism 15 includes a sub-cavity structure 154; that is, when the outer iron core 13 includes the first outer iron core 131 Or for the second outer iron core 132 , a sub-cavity structure 154 is provided between the first pump trench wall 1521 and the second pump trench wall 1522 . When the outer iron core 13 includes the third outer iron core 133, the pump ditch mechanism 15 can include the sub-cavity structure 154, and the pump ditch mechanism 15 can also not include the sub-cavity structure 154; that is, when the outer iron core 13 includes the third outer iron core 133, a sub-cavity structure 154 may be provided between the first pump trench wall 1521 and the second pump trench wall 1522, and there may be no sub-cavity structure 154 between the first pump trench wall 1521 and the second pump trench wall 1522.

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims (10)

1. An electromagnetic pump, comprising: a pump body, the pump body is formed with an accommodating space; a first end cover, the first end cover is arranged at both ends of the pump body and connected to the pump body; an inner iron core at least partially disposed in the accommodation space; a plurality of outer iron cores, and a plurality of said outer iron cores are arranged at least partially around said inner iron core; a winding at least partially disposed on the outer core; a pump channel mechanism at least partially disposed between the outer iron core and the inner iron core; It is characterized in that, The pump body includes a connecting mechanism and a first outer pipe, the connecting mechanism is used to connect the first outer pipe and the first end cover, and the pump channel mechanism includes a communication channel for the flow of liquid metal. When the liquid metal flows out from the circulation channel, the liquid metal flows into the first outer pipeline through the connecting mechanism, so that the liquid metal flows out of the electromagnetic pump; When flowing into the circulation channel, the liquid metal flows out from the electromagnetic pump into the connection mechanism through the first outer pipe, and flows into the flow channel through the connection mechanism. 2. The electromagnetic pump according to claim 1, characterized in that, the two ends of the inner iron core are also provided with a second end cover for sealing the inner iron core, and the second end cover is formed for the The first channel through which the liquid metal flows. 3. The electromagnetic pump according to claim 2, characterized in that, The pump ditch mechanism also includes: a first pump trench wall, the first pump trench wall is arranged between the outer iron core and the inner iron core; a second pump trench wall, the second pump trench wall is arranged between the first pump trench wall and the inner iron core; The flow channel is disposed between the first pump trench wall and the second pump trench wall. 4. The electromagnetic pump according to claim 3, wherein the second pump groove wall is connected to the second end cover, so that the second end cover seals the inner iron core. 5. The electromagnetic pump according to claim 1, wherein the connecting mechanism is a trapezoidal flange. 6. The electromagnetic pump according to claim 1, characterized in that, the material of the connection mechanism is silicon nitride. 7. An electromagnetic pump, comprising: a pump body, the pump body is formed with an accommodating space; an inner iron core at least partially disposed in the accommodation space; a plurality of outer iron cores, and a plurality of said outer iron cores are arranged at least partially around said inner iron core; a winding at least partially disposed on the outer core; a pump channel mechanism at least partially disposed between the outer iron core and the inner iron core; It is characterized in that, The pump ditch mechanism includes: a first pump trench wall, the first pump trench wall is arranged between the outer iron core and the inner iron core; a second pump trench wall, the second pump trench wall is arranged between the first pump trench wall and the inner iron core; a first protective layer, the first protective layer is arranged between the first pump trench wall and the outer iron core; a flow passage, the flow passage is disposed between the first pump trench wall and the second pump trench wall; The first pump trench wall and the first protective layer extend along the axial direction of the electromagnetic pump to form a first outer wall layer, and the end of the first outer wall layer away from the inner iron core gradually moves toward the electromagnetic pump. The axial direction of the pump gathers and forms a pipe mouth, and the pump body also includes a second outer pipe, which is connected to the pipe mouth. When the liquid metal flows out of the flow channel, the The liquid metal flows into the second outer pipe through the first outer wall layer, so that the liquid metal flows out of the electromagnetic pump; when the liquid metal flows in from the circulation channel, it passes through the first Two outer pipes flow the liquid metal from the electromagnetic pump into the first outer wall layer, and flow into the circulation channel through the first outer wall layer. 8. The electromagnetic pump according to claim 7, characterized in that, along the axial direction of the electromagnetic pump, the extension lengths of the first pump trench wall and the first protective layer are substantially the same. 9. The electromagnetic pump according to claim 7, characterized in that, the two ends of the inner iron core are also provided with second end caps for sealing the inner iron core, and the second end caps are formed for the The first channel through which the liquid metal flows. 10. The electromagnetic pump according to claim 7, characterized in that, both the walls of the first pump trench and the second pump trench are made of ceramic material, and the first protective layer is made of carbon fiber material.

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