WO2003033949A1

WO2003033949A1 - A rotatory magnet valve

Info

Publication number: WO2003033949A1
Application number: PCT/CN2002/000678
Authority: WO
Inventors: Liangzhi Tan; Bicheng Zhong; Zhengfu Tong
Original assignee: Liangzhi Tan; Bicheng Zhong; Zhengfu Tong
Priority date: 2001-09-26
Filing date: 2002-09-26
Publication date: 2003-04-24
Also published as: CN2504449Y

Abstract

A pocket rotatory magnet valve used in constant temperature water heater controls the outflow of fuel gas. The valve comprises a rotatory magnet actuator and a butterfly valve which is connected coaxial with said actuator. Said magnet actuator includes a stator, a rotor which is located in said stator, and a return spring; Moreover, said valve includes a valve body and a valve plate. Said rotor's shaft extends into said valve body's channel through a supporting passageway. The butterfly valve plate is mounted on said shaft within said channel. The present application has advantages of compact configuration, sensitive and reliable control, high-definition, small backlash, precise location and well linearity etc.. In addition, said valve body adopts a plug-type configuration so as to assemble and disassemble easily.

Description

小型转子式电磁调节阀技术领域本发明涉及一种调节阀，尤其涉及一种小型转子式电磁调节阀，适合在低压小流量自动控制***中作执行器，特别是在恒温燃气热水器或取暖器中作燃气的自动调节。背景技术目前用于自动控制的电控阀门主要是电磁开关岡和电动调节阀。前者虽简单，但一般不能作调节用；后者可调节，但一般结构较复杂。中国专利 90222664《旋转式电磁阔 »公开了一种多磁极旋塞式电磁调节阀。此阀"转子带动阀芯旋转时将需克服较大的摩擦力矩"，故"电磁力先将阀芯提起，苒根据下一拍绕組电流的分配而转动"。当上提阀芯时，流体漏入电磁***，这给密封带来困难。该阀不但结构复杂，体积大，而且不能连续无级调节，故调节精度差。中国专利 98240088《一种转子式可封闭气体调节阀》，采用"无挡铁转子式电磁铁" 带动阀片支架转动, 使阀片支架上的阀片在出气阀口平面处离合，形成拍合式调节阀。在调节阀开度较小时，阀片前后压差大, 阀片节流作用显著。此时阀片转角只要有一' J、变化, 流量就有一较大变化。在阀门开度较大时，阀片已远离阀口，阀片节流作用明显下降。此时阀片转角虽有一较大变化，但流量变化相对较小。鉴于上述，虽然转子式电磁铁的转子转角与阀片转角同步, 且与驱动电流之间的线性很好，但与其配套的拍合式调节阀的流体流量与阀片转角之间存在严重的非线性，这极大影响了该调节阀的性能。由于拍合式阔片的背压对转轴产生附加扭矩，它是开启力矩的负载之一，且二者间具正反馈作用，故阀门开度的定位 4青度将受较大影响。另外，为能在阀壳内装配阀片支架和阀片，阀壳至少需两个以上部件合围而成，结构不够筒洁。发明内容本发明的目的在于提供一种结构更简单，体积更小巧，阀门开度定位准确，分辨能力高，控制特性好的小型转子式电磁调节阀。为实现上述目的，其技术方案是：本小型转子式电磁调节阀，包括转子式电磁驱动机构和蝶型阀门调节机构。蝶型阀门调节机构的阀体上端与转子式电磁驱动机构的下支架或下端盖，沿转子转轴中轴线固定连接。转子转轴通过阀体内的支^^孔道伸入阀体流道，蝶型阀板直接安装在伸入阀体流道的转子转轴上。蝶型阀板随转子同步转动 , 以改变阀体流道有效截面，达到调节流体流量或压力的目的。技术效果： BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regulating valve, and more particularly to a small-sized rotor-type electromagnetic regulating valve, which is suitable as an actuator in a low-pressure and small-flow automatic control system, particularly in a constant-temperature gas water heater or heater. For automatic adjustment of gas. BACKGROUND OF THE INVENTION The electronically controlled valves currently used for automatic control are mainly electromagnetic switches and electric regulating valves. Although the former is simple, it cannot be used for regulation; the latter is adjustable, but its structure is generally more complicated. Chinese patent 90222664 "rotary electromagnetic wide" discloses a multi-magnetic pole plug type electromagnetic regulating valve. This valve "the rotor will need to overcome a large frictional torque when the valve core rotates", so "the electromagnetic force first lifts the valve core, and 转动 rotates according to the distribution of winding current in the next beat". When the spool is lifted, fluid leaks into the electromagnetic system, which makes sealing difficult. The valve is not only complicated in structure, large in volume, but also cannot be adjusted continuously and steplessly, so the regulation accuracy is poor. Chinese patent 98240088 "A Rotatable Closable Gas Regulator" adopts a "ironless iron rotor type electromagnet" to drive the valve disc holder to rotate, so that the valve disc on the valve disc support is disengaged at the outlet valve plane to form a snap-in type Regulating valve. When the opening degree of the regulating valve is small, the pressure difference between the front and back of the valve disc is large, and the valve throttling effect is significant. At this time, as long as there is a change in the angle of the valve disc, the flow rate will change greatly. When the valve opening is large, the valve disc is far away from the valve port, and the valve throttling effect is significantly reduced. At this time, although the valve blade rotation angle has a large change, the flow rate change is relatively small. In view of the above, although the rotor rotation angle of the rotor-type electromagnet is synchronized with the valve plate rotation angle and has a good linearity with the driving current, there is a serious non-linearity between the fluid flow and the valve plate rotation angle of the matching snap-in regulating valve. This greatly affects the performance of the regulating valve. Due to the back pressure of the snap-fit wide plate, it generates additional torque on the rotating shaft, which is the opening torque One of the loads, and there is a positive feedback effect between the two, so the positioning of the valve opening degree 4 will be greatly affected. In addition, in order to be able to assemble the valve disc bracket and the valve disc in the valve housing, the valve housing needs to be enclosed by at least two parts, and the structure is not clean enough. SUMMARY OF THE INVENTION The object of the present invention is to provide a small rotor-type electromagnetic regulating valve with simpler structure, smaller size, accurate positioning of valve opening, high resolution, and good control characteristics. To achieve the above object, the technical solution is: The small rotor type electromagnetic regulating valve includes a rotor type electromagnetic driving mechanism and a butterfly valve regulating mechanism. The upper end of the valve body of the butterfly valve adjusting mechanism is fixedly connected with the lower bracket or the lower end cover of the rotor-type electromagnetic driving mechanism along the central axis of the rotor shaft. The rotor shaft extends into the valve body flow channel through the support holes in the valve body, and the butterfly valve plate is directly installed on the rotor shaft that extends into the valve body flow channel. The butterfly valve plate rotates synchronously with the rotor to change the effective cross section of the valve body flow channel, so as to achieve the purpose of adjusting fluid flow or pressure. Technical effects:

1. 本小型转子式电磁调节阀结构简单、紧凑、体积小。 1. This small rotor type electromagnetic regulating valve is simple, compact and small in size.

2. 蝶型阀板所受背压对转子转轴基本不产生附加扭矩，且转动摩擦阻力小，故阀门开度不受压力和流量影响，调节回差小，重复定位精度高。 2. The back pressure received by the butterfly valve plate basically does not generate additional torque to the rotor shaft, and the rotation friction resistance is small. Therefore, the valve opening is not affected by pressure and flow, the adjustment difference is small, and the repeat positioning accuracy is high.

3. 由于转子式电磁驱动机构的驱动电流与转子转角之间的线性很好, 而蝶型阀板的转角与阀体流道有效截面之间的非线性，在很大程度上可抵消蝶型阀板转角与流体流量之间的非线性，故蝶型阀门调节机构与转子式电磁驱动机构有机结合后应用于恒温燃气热水器，综合线性好，调节效果好。经多件多规格样本实测，燃气流量 /驱动电流之特性曲线近乎直线。 3. Because the linearity between the driving current of the rotor electromagnetic drive mechanism and the rotor rotation angle is very good, and the non-linearity between the rotation angle of the butterfly valve plate and the effective cross section of the valve body flow channel can largely offset the butterfly shape The non-linearity between the valve plate rotation angle and the fluid flow rate, so the butterfly valve adjustment mechanism and the rotor-type electromagnetic drive mechanism are combined and applied to the constant temperature gas Water heater has good comprehensive linearity and good regulation effect. The actual curve of the gas flow / drive current is nearly straight after measured by multiple samples with multiple specifications.

4. 蝶型阀板由转子转直接传动，消除了间接传动引起的误差，传动环节少，磨损小，可靠性高，寿命长。 4. The butterfly valve plate is directly driven by the rotor, eliminating errors caused by indirect transmission, less transmission links, less wear, high reliability, and long life.

5. 阀体采用***式安装结构后，不但简化了配套整机的气路结构，而且使安装和拆卸等操作都十分方便。 5. The valve body adopts a plug-in installation structure, which not only simplifies the gas circuit structure of the complete machine, but also makes installation and removal operations very convenient.

6. 在恒温燃气热水器中，为保证使用时主燃烧器有一不熄灭的最小基本火焰，蝶型阀门的蝶型阀板与阀体流道内壁之间须保留一定泄流间隙，这同时也避免了蝶型阀板边缘与阀体流道的摩擦接触。在这里，普通蝶型阀门不易关闭严密的缺点正好被巧妙利用，故勿需专为防止泄漏而采耳又措施。这不但使本阀结构进一步简化，而且蝶型阀门开启时的摩擦阻力也因此基本消除。这可使本阀开闭更灵活、平稳、控制更精确。附图说明图 1是一种卧式对称磁路的转子式电磁马区动机构示意图。图 2是一种阀体为圆柱状的小型转子式电磁调节阀立面图。图 3是一种阀体为圆柱状的小型转子式电磁调节阔与阀座装配后的立面图。图 4是图 2的仰视图。图 5是一种阀体为锥台状的小型转子式电磁调节阀与阀座装配后的立面图。图 6 是一种阀体自带管道接头的小型转子式电磁调节阀立面图。图 7是一种薄型蝶型阀板主视图。图 8是具有槽口轴端的转子转轴局部图。图 9是图 7蝶型阀板与图 8转子转轴装配后的主视图。图 10是一种厚型蝶型阀板主视图。图 11是具有扁平轴端的转子转轴局部图。图 12是图 10蝶型阀板与图 11转子转轴装配后的主视图。图 13是一种卧式单边磁路的转子式电磁驱动机构示意图。图 14是一种立式磁路的转子式电磁驱动机构示意图。具体实施方式以下结合附图给出的实施例对本发明作进一步说明。在所列附图中，部件序号相同者其主称亦相同，其功效相同或相近。. 实施例 1 : 参见图 1 ~图 4。本阀采用转子式电磁驱动机构与蝶型阀门调节机构同由连接构成。转子式电磁驱动机构主要由定子铁芯 1，套在定子铁芯 1上的定子线圏 2, 位于定子铁芯 1中的转子铁芯 3 , 与转子铁芯 3紧固连接的转子转轴 4, 转子转轴 4由轴承 16和阀体 11支承，转子可在定子中转动。转子上有转子弹簧销 5, 定子上有定子弹簧销 7, 在两个弹簧销之间装有复位弹簧 6, 转子在复位弹簧 6作用下，回转到起点。当定子线圈 2通入一定电流后，转子受电磁力驱动，克服复位弹簧 6的作用力向终点转动。电流越大，转角越大。在定子轴向两端分别紧固有上支架或上端盖 9与下支架或下端盖 10，下支架或下端盖 10中间有孔，用来连接蝶型阔门调节机构。蝶型阀门调节机构主要由静止的阀体 11 , 可转动的蝶型阔板 15, 阀体 11上的轴承 16和密封圈 14构成。在阀体 11的下部有径向贯通的阀体流道 13。虽然阀体流道 13可有多种形式，但以圆形直孔最为简单实用。在阀体 11内有支承孔道 12, 支^孔道 12位于阀体中由线上，下端与阀体流道 13相通，上端与转子式电磁马区动机构相通。支承孔道 12内装有转子转轴 4和支承转子转轴 4的轴承 16; 或直接把该支承孔道作成轴承 , 以支承转子转轴 4, 而省掉配件轴 7|c l6。阀体 11可由多种材料制成，但以黄铜最为实用。阀体 11上端与转子式电磁驱动机构的下支架或下端盖 10, 沿转子转轴 4的中轴线固定连接，或把阀体 11上端与转子式电磁驱动机构的下支架或下端盖 10作成连体结构。转子转轴 4穿过轴承 16和支道 12伸入阀体流道 13, 蝶型阀板 15在阀体流道 13中直接安装在转子转轴 4上。蝶型阀板 15随转子同步转动，以改变阔体流道 13的有效截面，达到调节流体流量或压力的目的。当本岡应用于 10KW 80KW恒温燃气热水器或取暖器时，转子式电磁驱动机构的转子铁芯 3直径为 15mm ~ 30mm,转子铁芯 3 叠厚为 5 mm ~ 20mm, 转子转轴 4直径为 1.6 mm ~ 3.2mm, 转子铁芯 3与定子铁芯 1间的磁隙宽度为 0.2 mm ~ 0.8mm, 转子转角有效行程为 40° ~ 80。。蝶型阀门调节机构的阀体流道 13 内径为 8mm - 24mm, 椭圆形蝶型阀板 15的短径比阀体流道 13的内径小 0.02mm ~ 0.22mm, 其长径与短径之比为 1 ~ 1.2。为满足一些应用场合对最小和 /或最大流量的限制，本阀在转子式电磁驱动机构中，装有转子转角限位器 8来限制蝶型阀门的最小和 /或最大开度。例如：在只有主火而无长明火的燃气热水器中，主火不能关得太小，否则易造成回火、熄火或点火时火焰不能传递，故必须限制蝶型阀门的最小开度，以保证主燃烧器至少有一基本火焰，以便安全使用。当本阀应用于 10KW ~ 80KW恒温燃气热水器或取暖器时，其最小的基本火焰应调至额定热负荷的 8% ~ 28%。在转子铁芯 3与轴承 16之间，装有套在转子转轴 4上的轴向密封垫片 17。在流体压力较大，或倒置安装本阀时，为保证轴向密封的可靠性，本阀在转子上端或转子转轴 4顶端与上支架或上端盖 9或定子之间，装有轴向推力弹簧 18, 对转子施以一定轴向推力，以适当压紧密封垫片 17。在转子转轴 4与支承孔道 12之间的间隙，置入多层油封毡圈并注满润滑油脂。吸足润滑油脂的毡圈可在燃气压力作用下，似活塞向上移动，靠在轴承 16下端面上，向含油轴承 16供油。由于本阀最大转角仅 80。，耗油极少，故一次加足便可长年使用。同时，多层柔软的油封毡圈充填在转子转轴 4与支承孔道 12之间，这对低压燃气来说，当然又是一道有效密封。另外，还可将多层油封毡圈分成上下两部分，中间加一压缩弹簧，让其对转子转轴 4的上下 |5供油润滑。在位于定子铁芯 1及下支架或下端盖 10四角的装配孔，与穿过该孔的螺钉间的间隙较小，使穿过该孔的螺釘兼有定位销的作用。端盖上还有导线孔 19，以供导线进出。为实现本阔在管路中的方便快捷的安装或检修，本例阀体 11 特作成圆柱状***式安装结构，与圆孔承插式阀座 20 配合使用。该阀座制成三通状管道结构，可单独成件，亦可与设备管路连为一体。为防止阔体 11与阀座 20之间的泄漏，阀体 11上有环形槽和密封圈 14。该阀座也可制成四通状管道结构，此时阀体 11下端应增加一道密^ ·圈。实施例 2: 参见图 5。本阀阀体 11可制成锥台状***式安装结构，与锥孔承插式阀座 20配合使用。在转子式电磁驱动机构的上支架或上端盖 9上，在对应转子转轴 4处有轴孔，转子转轴 4上端伸入轴孔中。实施例 3 : 参见图 6。本阀阀体 11除制成各种***式安装结构外，还可分別在阀体流道 13 两端直接制成与阀体连为一体的管道接头。转子转轴 4除采用轴向密封圈或密封垫片 17密封外，还可釆用径向密封圏 21密封。实施例 4: 参见图 7 ~图 9。本阀的蝶型阀板 15可根据控制特性的不同需要，制成薄型正圆、椭圆或准圆片状。在转子转轴 4的下端部，纵向开有槽口 23。与其配套的蝶型阀板 15通过该槽口被夹持安装在转子转轴 4上。蝶型阀板 15上，有蝶型阀板定位凸台或其等效结构 22 , 以防蝶型阀板在转子转轴 4上错位。蝶型阀板 15在阀体流道 13中，除固定夹持安装在转子转轴 4上外，还可半活动地夹持安装在转子转轴 4上，即允许蝶型阀板沿槽口 23的平面方向，同时也是蝶型阀板 15 的平面方向，在一定范围内滑动，以便在本阀处于关闭位置时，自动适配阀体流道 13的内表面。实施例 5: 参见图 10 图 12。本阀的蝶型阀板 15可制成厚型圆片状，其上有径向扁平孔 24。与其配合的转子转轴 4的下端部相应制成扁平结构 25，该蝶型阀板 15通过扁平孔 24固定套装或半活动套装在转子转轴 4上。实施例 6: 参见图 13、图 14。本阀转子式电磁驱动机构可采用卧式单边磁路结构或立式磁路结构，其功效与图 1所示结构相同。 6. In the constant temperature gas water heater, in order to ensure that the main burner has a minimum basic flame that does not go out during use, a certain leakage gap must be reserved between the butterfly valve plate of the butterfly valve and the inner wall of the valve body flow channel, which is also avoided at the same time. The frictional contact between the edge of the butterfly valve plate and the flow passage of the valve body is achieved. Here, the shortcomings of ordinary butterfly valves that are not easy to close are precisely utilized ingeniously. Therefore, it is not necessary to adopt ear measures and measures to prevent leakage. This not only simplifies the structure of the valve, but also basically eliminates the frictional resistance when the butterfly valve is opened. This makes the valve more flexible, smooth, and more accurate. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a rotor-type electromagnetic horse moving mechanism of a horizontal symmetrical magnetic circuit. Fig. 2 is a vertical view of a small rotor type electromagnetic regulating valve with a cylindrical body. FIG. 3 is an elevation view of a small rotor-type electromagnetic regulating valve with a cylindrical body and an assembled valve seat. FIG. 4 is a bottom view of FIG. 2. FIG. 5 is an elevation view of a small rotor type electromagnetic regulating valve with a frustum-shaped valve body assembled with a valve seat. Fig. 6 is an elevation view of a small rotor type electromagnetic regulating valve with a valve body having a pipe joint. Figure 7 is a front view of a thin butterfly valve plate. Fig. 8 is a partial view of a rotor shaft having a notch shaft end. FIG. 9 is a front view of the butterfly valve plate of FIG. 7 assembled with the rotor shaft of FIG. 8. Figure 10 is a front view of a thick butterfly valve plate. 11 is a partial view of a rotor shaft having a flat shaft end. FIG. 12 is a front view of the butterfly valve plate of FIG. 10 assembled with the rotor shaft of FIG. 11. FIG. 13 is a schematic diagram of a rotor-type electromagnetic drive mechanism of a horizontal unilateral magnetic circuit. FIG. 14 is a schematic diagram of a rotor-type electromagnetic drive mechanism of a vertical magnetic circuit. DETAILED DESCRIPTION The present invention will be further described below with reference to the embodiments given in the drawings. In the listed drawings, those with the same part numbers have the same main names and the same or similar effects. Example 1: See FIGS. 1 to 4. The valve adopts a rotor-type electromagnetic driving mechanism and a butterfly valve regulating mechanism. The rotor-type electromagnetic driving mechanism is mainly composed of a stator core 1, a stator coil 2 sleeved on the stator core 1, a rotor core 3 located in the stator core 1, and a rotor shaft 4 which is fastened to the rotor core 3. The rotor shaft 4 is supported by a bearing 16 and a valve body 11. Turn in the stator. A rotor spring pin 5 is provided on the rotor, and a stator spring pin 7 is provided on the stator. A return spring 6 is installed between the two spring pins. The rotor is returned to the starting point by the return spring 6. When a certain current is passed in the stator coil 2, the rotor is driven by electromagnetic force, and rotates toward the end point against the force of the return spring 6. The larger the current, the larger the corner. An upper bracket or an upper end cover 9 and a lower bracket or a lower end cover 10 are respectively fastened at two ends of the stator in the axial direction, and a hole is provided in the middle of the lower bracket or the lower end cover 10, which is used to connect a butterfly wide door adjusting mechanism. The butterfly valve regulating mechanism is mainly composed of a stationary valve body 11, a rotatable butterfly wide plate 15, a bearing 16 and a sealing ring 14 on the valve body 11. A valve body flow passage 13 is formed in a lower portion of the valve body 11 so as to penetrate therethrough. Although the valve body flow channel 13 may have various forms, a circular straight hole is the simplest and most practical. Inside the valve body 11, there are support holes 12, the support holes 12 are located on the line in the valve body, the lower end is in communication with the valve body flow channel 13, and the upper end is in communication with the rotor-type electromagnetic horse moving mechanism. The support hole 12 is provided with a rotor shaft 4 and a bearing 16 for supporting the rotor shaft 4; or the support hole is directly made into a bearing to support the rotor shaft 4 without the accessory shaft 7 | c l6. The valve body 11 can be made of various materials, but brass is most practical. The upper end of the valve body 11 is fixedly connected to the lower bracket or the lower end cover 10 of the rotor-type electromagnetic drive mechanism, or the upper end of the valve body 11 is connected to the lower bracket or the lower end cover 10 of the rotor-type electromagnetic drive mechanism. structure. The rotor shaft 4 extends through the bearing 16 and the branch 12 into the valve body flow channel 13, and the butterfly valve plate 15 is directly mounted on the rotor shaft 4 in the valve body flow channel 13. The butterfly valve plate 15 rotates synchronously with the rotor to change the effective cross-section of the wide-body flow channel 13 to achieve the purpose of adjusting fluid flow or pressure. When Motooka is applied to 10KW 80KW constant temperature gas water heaters or heaters, the rotor core 3 of the rotor-type electromagnetic drive mechanism has a diameter of 15 mm to 30 mm, the rotor core 3 has a stack thickness of 5 mm to 20 mm, and the diameter of the rotor shaft 4 is 1.6 mm to 3.2mm, the magnetic gap width between the rotor core 3 and the stator core 1 is 0.2 mm ~ 0.8mm, and the effective stroke of the rotor angle is 40 ° ~ 80. . The inner diameter of the valve body flow channel 13 of the butterfly valve adjusting mechanism is 8mm-24mm, the short diameter of the oval butterfly valve plate 15 is smaller than the inner diameter of the valve body flow channel 13 by 0.02mm to 0.22mm, and the ratio of the long diameter to the short diameter is 1 to 1.2. In order to meet the restrictions on the minimum and / or maximum flow in some applications, the valve is equipped with a rotor angle limiter 8 in the rotor electromagnetic drive mechanism to limit the minimum and / or maximum opening of the butterfly valve. For example: In a gas water heater with only the main fire and no long open flame, the main fire cannot be turned off too small, otherwise the flame may not be transmitted during flashback, flameout or ignition, so the minimum opening of the butterfly valve must be limited to ensure The main burner has at least one basic flame for safe use. When this valve is applied to a 10KW ~ 80KW constant temperature gas water heater or heater, its minimum basic flame should be adjusted to 8% ~ 28% of the rated thermal load. Between the rotor core 3 and the bearing 16, an axial sealing washer 17 is fitted on the rotor shaft 4. When the fluid pressure is large or the valve is installed upside down, in order to ensure the reliability of the axial seal, the valve is equipped with an axial thrust spring between the upper end of the rotor or the top of the rotor shaft 4 and the upper bracket or upper end cover 9 or the stator. 18. Apply a certain axial thrust to the rotor to properly compress the gasket 17. A multi-layer oil seal felt ring is placed in the gap between the rotor rotating shaft 4 and the support hole 12 and filled with lubricating grease. The felt ring sucking the lubricating grease can move under the pressure of gas like a piston, lean against the lower end face of the bearing 16 and supply oil to the oil-containing bearing 16. Because the maximum angle of this valve is only 80. It consumes very little fuel, so it can be used for many years if it is full. At the same time, multiple layers of soft oil-sealed felt rings are filled between the rotor shaft 4 and the support holes 12, which is of course an effective seal for low-pressure gas. In addition, the multi-layer oil-sealed felt ring can be divided into upper and lower parts, and a compression spring is added in the middle to allow it to lubricate the upper and lower | 5 of the rotor shaft 4. In the mounting holes located at the four corners of the stator core 1 and the lower bracket or the lower end cover 10, the clearance between the mounting holes and the screws passing through the holes is small, so that the screws passing through the holes also serve as positioning pins. The end cap also has a wire hole 19 for wire entry and exit. In order to realize the convenient and quick installation or maintenance of this valve in the pipeline, the valve body 11 in this example is specially made into a cylindrical plug-in installation structure, which is used in conjunction with the round-hole socket valve seat 20. The valve seat is made into a three-way pipe structure, which can be made separately or integrated with the equipment pipeline. In order to prevent leakage between the wide body 11 and the valve seat 20, the valve body 11 has an annular groove and a sealing ring 14. The valve seat can also be made into a four-way pipe structure. At this time, a dense ring should be added to the lower end of the valve body 11. Example 2: See FIG. 5. The valve body 11 can be made into a frustum-shaped plug-in installation structure, and is used in conjunction with a tapered socket socket valve seat 20. On the upper bracket or the upper end cover 9 of the rotor-type electromagnetic driving mechanism, there are shaft holes at 4 corresponding to the rotor shaft, and the upper end of the rotor shaft 4 projects into the shaft hole. Example 3: See FIG. 6. In addition to being made into various plug-in installation structures, the valve body 11 can also be directly made into a pipe joint that is integrated with the valve body at each end of the valve body flow channel 13. The rotor rotating shaft 4 can be sealed with a radial seal 圏 21 in addition to an axial seal ring or a gasket 17. Embodiment 4: See FIG. 7 to FIG. 9. The butterfly valve plate 15 of the valve can be made into a thin perfect circle, ellipse or quasi-disc shape according to different needs of control characteristics. A notch 23 is formed in the lower end portion of the rotor shaft 4 in the longitudinal direction. The matching butterfly valve plate 15 is clamped and mounted on the rotor shaft 4 through the slot. The butterfly valve plate 15 has a butterfly valve plate positioning boss or its equivalent structure 22 to prevent the butterfly valve plate from being misaligned on the rotor shaft 4. The butterfly valve plate 15 is fixed in the valve body flow path 13 and mounted on the rotor shaft 4, and can also be clamped semi-movably. It is mounted on the rotor shaft 4, which allows the butterfly valve plate to slide along the plane of the slot 23 and also the plane direction of the butterfly valve plate 15 within a certain range, so that when the valve is in the closed position, it automatically adapts. With the inner surface of the valve body flow channel 13. Example 5: See Figure 10 Figure 12. The butterfly valve plate 15 of the valve can be made into a thick disc shape, and has a radial flat hole 24 therein. The lower end of the rotor shaft 4 matched with it is correspondingly made into a flat structure 25, and the butterfly valve plate 15 is fixed or semi-movably fitted on the rotor shaft 4 through the flat hole 24. Embodiment 6: See FIG. 13 and FIG. 14. The valve rotor-type electromagnetic driving mechanism can adopt a horizontal single-side magnetic circuit structure or a vertical magnetic circuit structure, and its effect is the same as the structure shown in FIG. 1.

Claims

1. 一种小型转子式电磁调节阀，包括转子式电磁驱动机构和蝶型阀门调节机构；其特征在于蝶型阔门调节机构的阀体上端与转子式电磁驱动机构的下支架或下端盖，沿转子转轴中轴线固定连接；转子转轴通权过阀体内的支承孔道伸入阀体流道，蝶型阀板直接安装在伸入阀体流道的转子转轴上。 1. A small rotor type electromagnetic regulating valve, comprising a rotor type electromagnetic driving mechanism and a butterfly valve regulating mechanism; characterized in that the upper end of the valve body of the butterfly wide door regulating mechanism and the lower bracket or lower end cover of the rotor electromagnetic driving mechanism, The rotor shaft is fixedly connected along the central axis of the rotor shaft; the rotor shaft passes through the support hole in the valve body to extend into the valve body flow channel, and the butterfly valve plate is directly installed on the rotor shaft that extends into the valve body flow channel.

2. 才据权利要求 1所述的小型转子式电磁调节阀，其特征在于阀体为圓柱状或锥台状***式安装结构，阀体下部有径向贯通的阀体流道，阀体流道为圆形直孔，阔书体内的支孔道位于阀体中轴线上，下端与阀体流道相通，上端与转子式电磁驱动机构相通。 2. The small rotor type electromagnetic regulating valve according to claim 1, characterized in that the valve body is a cylindrical or frustum-shaped plug-in installation structure, and a lower part of the valve body has a valve body flow passage passing through radially, and the valve body flow The channel is a circular straight hole, the branch channel in the wide book body is located on the central axis of the valve body, the lower end communicates with the valve body flow channel, and the upper end communicates with the rotor-type electromagnetic drive mechanism.

3. 据权利要求 2所述的小型转子式电磁调节阀，其特征在于圓柱状阀体上有环形槽和密封圈。 3. The small rotor type electromagnetic regulating valve according to claim 2, wherein the cylindrical valve body has an annular groove and a sealing ring.

4. 居权利要求 1或 2所述的小型转子式电磁调节阀，其特征在于转子式电磁驱动机构的下支架或下端盖与蝶型阀门调节机构的阀体上端连为一体。 4. The small rotor-type electromagnetic regulating valve according to claim 1 or 2, characterized in that the lower bracket or the lower end cover of the rotor-type electromagnetic driving mechanism is integrally connected with the upper end of the valve body of the butterfly valve regulating mechanism.

5. ~据权利要求 1或 2所述的小型转子式电磁调节阀，其特征在于阀体支承孔道内装有转子转轴和支承转子转轴的轴承，或用阀体支承孔道直接支承转子转轴；转子转轴上装有轴向密封垫片或径向密封圈。 5. The small rotor type electromagnetic regulating valve according to claim 1 or 2, characterized in that a rotor shaft and a bearing for supporting the rotor shaft are installed in the valve body supporting channel, or the rotor shaft is directly supported by the valve body supporting channel; the rotor shaft It is equipped with an axial sealing gasket or a radial sealing ring.

6. 才艮据权利要求 1或 2所述的小型转子式电磁调节阀，其特征在于转子转轴的下端部纵向开有槽口，与其配套的蝶型阀板通过该槽口被固定夹持或半活动夹持安装在转子转轴上；或转子转轴的下端部为扁平结构，与其配套的蝶型岡板上有径向扁平孔，该蝶型阀板通过扁平孔固定套装或半活动套装在转子转轴上。 6. The small rotor type electromagnetic regulating valve according to claim 1 or 2, characterized in that the lower end portion of the rotor shaft is longitudinally opened with a slot, and the butterfly valve plate matched with it is fixedly clamped through the slot or Semi-moving clamp mounted on the rotor shaft; or rotor rotation The lower end of the shaft is a flat structure, and the matching butterfly plate has a radial flat hole. The butterfly valve plate is fixed on the rotor shaft or set on the rotor shaft through a flat hole.

7. 根据权利要求 6所述的小型转子式电磁调节阀，其特征在于夹持安装在转子转轴上的蝶型阀板上有蝶型阀板定位凸台。 7. The small rotor type electromagnetic regulating valve according to claim 6, wherein a butterfly valve plate positioning boss is clamped on a butterfly valve plate mounted on a rotor shaft.

8. 根据权利要求 1所述的小型转子式电磁调节阀，其特征在于转子上端或转子转轴顶端与上支架或上端盖或定子之间装有轴向推力弹簧。 8. The small rotor type electromagnetic regulating valve according to claim 1, wherein an axial thrust spring is installed between the upper end of the rotor or the top of the rotor shaft and the upper bracket or the upper end cover or the stator.

9. 根据权利要求 1所述的小型转子式电磁调节阀，其特征在于在转子式电磁驱动机构 '中，装有转子转角限位器来限制蝶型阀门的最小和 /或最大开度。 9. The small rotor type electromagnetic regulating valve according to claim 1, characterized in that a rotor angle limiter is installed in the rotor type electromagnetic driving mechanism to limit the minimum and / or maximum opening of the butterfly valve.

10. ^^据权利要求 2所述的小型转子式电磁调节阀，其特征在于插入式安装结构的阀体配有承插式阀座；或阀体流道两端直接制成与阀体连为一体的管道接头。 10. ^ The small rotor type electromagnetic regulating valve according to claim 2, characterized in that the valve body of the plug-in installation structure is provided with a socket-type valve seat; or both ends of the valve body flow channel are directly connected to the valve body. As one piece of pipe joint.

1 1. 根据权利要求 1或 2所述的小型转子式电磁调节阀，其特征在于转子式电磁驱动机构的上支架或上端盖，在对应转子转轴处有轴孔，转子转轴上端伸入轴孔中。 1 1. The small-sized rotor-type electromagnetic regulating valve according to claim 1 or 2, characterized in that the upper bracket or the upper end cover of the rotor-type electromagnetic driving mechanism has a shaft hole at a corresponding rotor shaft, and the upper end of the rotor shaft extends into the shaft hole in.

12. 根据权利要求 1或 2所述的小型转子式电磁调节阀 ,其特征在于在转子转轴与支道之间的间隙，置入多层油封毡圈并注满润滑油脂。 12. The small rotor type electromagnetic regulating valve according to claim 1 or 2, characterized in that a multi-layer oil seal felt ring is placed in the gap between the rotor shaft and the branch and filled with lubricating grease.

13. 才艮据权利要求 1或 2所述的小型转子式电磁调节阀，其特征在于位于定子铁芯及下支架或下端盖四角的装配孔，与穿过该孔的螺钉间的间隙较小 , 使穿过该孔的螺钉兼有定位销的作用。才艮据权利要求 1或 2所述的小型转子式电磁调节阔，其特征在于当本阀应用于 10KW ~ 80KW恒温燃气热水器或取暖器时，转子式电磁驱动机构的转子铁芯直径为 15mm ~ 30mm, 转子铁芯叠厚为 5 mm ~ 20mm,转子转轴直径为 1.6 mm ~ 3.2mm, 转子铁芯与定子铁芯间的磁隙宽度为 0.2 mm ~ 0.8mm, 转子转角有效行程为 40。 ~ 80。。 13. The small rotor type electromagnetic regulating valve according to claim 1 or 2, characterized in that the gaps between the mounting holes located at the four corners of the stator core and the lower bracket or the lower end cover and the screws passing through the holes are small. So that the screws passing through this hole also serve as positioning pins. According to claim 1 or 2, the small-sized rotor-type electromagnetic adjustment device is characterized in that when the valve is applied to a 10KW ~ 80KW constant temperature gas water heater or heater, the rotor core diameter of the rotor-type electromagnetic drive mechanism is 15mm ~ 30mm, rotor core stack thickness is 5 mm ~ 20mm, rotor shaft diameter is 1.6 mm ~ 3.2mm, magnetic gap width between rotor core and stator iron core is 0.2 mm ~ 0.8mm, effective rotation angle of rotor is 40. ~ 80. .