CN106168303A - A kind of micrometeor high accuracy lightweight miniaturization pressure maintaining valve - Google Patents
A kind of micrometeor high accuracy lightweight miniaturization pressure maintaining valve Download PDFInfo
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- CN106168303A CN106168303A CN201610742931.8A CN201610742931A CN106168303A CN 106168303 A CN106168303 A CN 106168303A CN 201610742931 A CN201610742931 A CN 201610742931A CN 106168303 A CN106168303 A CN 106168303A
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- 238000000034 method Methods 0.000 claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 etc. Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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Abstract
本发明公开了一种微流量高精度轻质小型化稳压阀，包括阀体、阀座、膜片组件、弹簧座、弹簧、阀芯、压紧装置、压紧环、主弹簧座、调节球；阀体和阀座为分离式结构，降低阀体、阀座加工要求，易加工；阀座与阀芯为软‑硬密封方式；通过间隙配合，实现工作过程无自摩擦；阀座作为独立组件组装到阀体上，利于阀座与阀芯之间的配合位置要求，提高复位精度；通过膜片组件来敏感压力和阻隔工作介质的外漏，提升产品性能；阀芯为一体化设计，减少零件数量，易于装配和加工；通过上述特点，满足产品性能且节约空间，实现轻质小型化。
The invention discloses a micro-flow, high-precision, light-weight and miniaturized pressure stabilizing valve, which comprises a valve body, a valve seat, a diaphragm assembly, a spring seat, a spring, a valve core, a pressing device, a pressing ring, a main spring seat, an adjusting ball; the valve body and seat are separated structures, which reduce the processing requirements of the valve body and seat, and are easy to process; the seat and the valve core are soft-hard sealed; through clearance fit, there is no self-friction in the working process; the seat acts as The independent components are assembled on the valve body, which is conducive to the matching position requirements between the valve seat and the valve core, and improves the reset accuracy; the diaphragm component is used to sense the pressure and block the leakage of the working medium to improve product performance; the valve core is an integrated design , reduce the number of parts, easy to assemble and process; through the above features, meet product performance and save space, and realize light weight and miniaturization.
Description
技术领域technical field
本发明涉及一种微流量高精度轻质小型化稳压阀，属于空间站用减压稳压阀门类产品领域。The invention relates to a micro-flow, high-precision, light-weight and miniaturized pressure-stabilizing valve, which belongs to the product field of pressure-reducing and stabilizing valves for space stations.
背景技术Background technique
空间站用稳压阀产品安装在为空间站环控生保分系统内，用于稳定载气输出压力。在使用过程中，稳压阀上游气路开启经过稳压阀后，保持稳压阀输出压力稳定，为下游工作提供稳定的载气输出压力。该产品要求流量小，最大流量为0.03mg/s；精度高(±3％)；重量轻(<100g)；工作介质为氢气；输出压力在0.1～0.2MPa范围内连续可调。The pressure stabilizing valve for the space station is installed in the environmental control and life protection sub-system of the space station to stabilize the output pressure of the carrier gas. During use, after the upstream gas path of the pressure stabilizing valve is opened and passes through the stabilizing valve, the output pressure of the stabilizing valve is kept stable to provide a stable carrier gas output pressure for downstream work. The product requires a small flow rate, the maximum flow rate is 0.03mg/s; high precision (±3%); light weight (<100g); the working medium is hydrogen; the output pressure is continuously adjustable within the range of 0.1-0.2MPa.
目前空间站用减压稳压类阀门一般重量较大，流量大且与要求的工作介质相容性不好，而工业用的产品其可靠性和精度无法保证。At present, the decompression and pressure stabilization valves used in space stations are generally heavy in weight, large in flow rate and not compatible with the required working medium, while the reliability and accuracy of industrial products cannot be guaranteed.
因此针对当前空间站产品的要求，需研制一种微流量、高精度、轻质小型化的稳压阀产品。Therefore, in response to the requirements of the current space station products, it is necessary to develop a regulator valve product with micro-flow, high precision, light weight and miniaturization.
发明内容Contents of the invention
本发明的目的是为了克服轻质小型化且耐氢脆技术要求，提供一种微流量高精度轻质小型化稳压阀，该产品集成性高、无动摩擦、工艺实现性强。The purpose of the present invention is to overcome the technical requirements of lightweight miniaturization and resistance to hydrogen embrittlement, and provide a micro-flow, high-precision, lightweight and miniaturized pressure regulator valve, which has high integration, no dynamic friction, and strong process realization.
本发明的目的是通过以下技术方案实现的。The purpose of the present invention is achieved through the following technical solutions.
本发明的一种微流量高精度轻质小型化稳压阀，包括阀体(1)、阀座(2)、膜片组件(3)、弹簧座(4)、弹簧(5)、阀芯(6)、压紧装置(7)、压紧环(8)、主弹簧座(9)和调节球(10)；A micro-flow, high-precision, lightweight and miniaturized pressure stabilizing valve of the present invention comprises a valve body (1), a valve seat (2), a diaphragm assembly (3), a spring seat (4), a spring (5), and a valve core (6), hold-down device (7), hold-down ring (8), main spring seat (9) and adjusting ball (10);
膜片组件(3)放置在阀体(1)低压腔中，膜片组件(3)的上端有凹槽；阀座(2)端面处开有孔槽；以阀体(1)为基体，阀座(2)固定放置在阀体(1)的高压腔中，阀体(1)低压腔中设有限位槽；弹簧座(4)放置在阀体(1)的高压腔中，与弹簧(5)端面接触；阀芯(6)与阀座(2)采用间隙配合，为无摩擦结构；阀芯(6)与阀座(2)接触部分为球面结构，阀芯(6)细长杆放置在阀座(2)的内部通道内，通过阀座(2)对阀芯(6)进行限位，使阀芯(6)沿阀体(1)的轴向可以上下运动；压紧装置(7)与阀体(1)固定，以用来固定阀座(2)和阀体(1)；压紧环(8)放置在阀体(1)低压腔中，以便对膜片组件(3)进行定位；主弹簧座(9)上有与膜片组件(3)的凹槽相匹配的凹槽，两个凹槽之间形成一个球形空腔，调节球(10)放置在所形成的球形空腔中，通过调节球(10)实现主弹簧座(9)沿阀体(1)轴向对中；进而推动阀芯(6)沿阀体(1)的轴向上下运动。The diaphragm assembly (3) is placed in the low-pressure cavity of the valve body (1), and the upper end of the diaphragm assembly (3) has a groove; the end surface of the valve seat (2) has a hole groove; the valve body (1) is used as the base, The valve seat (2) is fixedly placed in the high-pressure chamber of the valve body (1), and a limit groove is provided in the low-pressure chamber of the valve body (1); the spring seat (4) is placed in the high-pressure chamber of the valve body (1), and the spring (5) End surface contact; the valve core (6) and the valve seat (2) adopt a clearance fit, which is a frictionless structure; the contact part of the valve core (6) and the valve seat (2) is a spherical structure, and the valve core (6) is slender The rod is placed in the inner passage of the valve seat (2), and the valve core (6) is limited by the valve seat (2), so that the valve core (6) can move up and down along the axial direction of the valve body (1); The device (7) is fixed with the valve body (1) to fix the valve seat (2) and the valve body (1); the compression ring (8) is placed in the low-pressure chamber of the valve body (1) so that the diaphragm assembly (3) Positioning; there is a groove on the main spring seat (9) that matches the groove of the diaphragm assembly (3), a spherical cavity is formed between the two grooves, and the adjusting ball (10) is placed on the In the formed spherical cavity, the main spring seat (9) is centered along the axial direction of the valve body (1) through the adjusting ball (10); and then the valve core (6) is pushed up and down along the axial direction of the valve body (1).
所述膜片组件(3)包括支架、压盘和金属膜片，三者通过电子束焊接成一体，金属膜片边缘与阀体(1)低压腔中限位槽接触。The diaphragm assembly (3) includes a bracket, a pressure plate and a metal diaphragm, the three are welded together by electron beams, and the edge of the metal diaphragm is in contact with the limit groove in the low pressure cavity of the valve body (1).
所述阀芯(6)采用一体化设计，材料为不锈钢，减少零部件数量，易于整机装配和零部件加工。The valve core (6) adopts an integrated design, and the material is stainless steel, which reduces the number of parts and is easy to assemble the whole machine and process parts.
所述阀芯(6)与阀座(2)采用间隙配合时的接触部分为球面结构，The contact part between the valve core (6) and the valve seat (2) when clearance fit is adopted is a spherical structure,
所述膜片组件(3)为金属，能够敏感压力和阻隔工作介质的外漏，提升产品密封性能；阀座(2)为金属和非金属F4的组合体，在加工时先加工一个毛坯后再通过热压工艺将非金属F4放到相应结构中，最后再加工成型，即通过热压非金属F4来实现零件的密封。The diaphragm assembly (3) is made of metal, which can be sensitive to pressure and block the leakage of the working medium, and improve the sealing performance of the product; the valve seat (2) is a combination of metal and non-metal F4, which is processed after a blank is processed. Then put the non-metallic F4 into the corresponding structure through the hot-pressing process, and finally process and shape it, that is, realize the sealing of the parts by hot-pressing the non-metallic F4.
所述阀座(2)作为独立组件组装到阀体(1)上，利于保证阀座(2)与阀芯(6)之间的配合相对位置要求，提高产品复位精度；同时降低阀体(1)加工精度要求，工艺实现性强，提高成品率。The valve seat (2) is assembled on the valve body (1) as an independent component, which is beneficial to ensure the relative position requirements of the cooperation between the valve seat (2) and the valve core (6), and improves the product reset accuracy; at the same time, the valve body ( 1) Machining accuracy requirements, strong process realization, and improved yield.
所述阀座(2)与阀芯(6)采用软-硬密封方式，即阀芯(6)为金属，阀座(2)与其相互接触的部分为非金属，充分保证了结构的密封性，实现产品高压密封。The valve seat (2) and the valve core (6) adopt a soft-hard sealing method, that is, the valve core (6) is metal, and the parts of the valve seat (2) that are in contact with each other are non-metallic, which fully guarantees the tightness of the structure , to achieve product high pressure sealing.
所述阀座(2)与阀芯(6)通过间隙配合，实现产品工作过程无自摩擦；同时阀座(2)作为独立组件组装到阀体(1)上，利于保证阀座(2)与阀芯(6)之间的配合相对位置要求，提高产品复位精度。The valve seat (2) and the valve core (6) cooperate through clearance to realize no self-friction in the working process of the product; at the same time, the valve seat (2) is assembled on the valve body (1) as an independent component, which is beneficial to ensure that the valve seat (2) The relative position requirement of cooperation with the spool (6) improves the reset accuracy of the product.
所述阀体(1)和阀座(2)采用分离式结构，降低阀体、阀座的加工精度要求，工艺实现性强，提高成品率。The valve body (1) and the valve seat (2) adopt a separate structure, which reduces the processing accuracy requirements of the valve body and the valve seat, has strong process realization, and improves the yield of finished products.
所述弹簧(5)为锥型，弹簧座(4)与锥型的大端面接触；能够快速稳定满足产品性能的同时节约产品内部空间，减轻产品重量，实现轻质小型化要求。The spring (5) is conical, and the spring seat (4) is in contact with the large end surface of the conical shape; it can quickly and stably meet the product performance while saving the internal space of the product, reducing the weight of the product, and realizing the requirements of light weight and miniaturization.
本发明与现有技术相比的优点在于：The advantage of the present invention compared with prior art is:
(1)由于本发明的结构组成，使得具有集成性高、无动摩擦、工艺实现性强的优点。(1) Due to the structural composition of the present invention, it has the advantages of high integration, no dynamic friction, and strong process realization.
(2)本发明的阀芯通过采用一体化设计，减少零部件数量，易于整机装配和零部件加工；通过采用弹簧，快速稳定满足产品性能的同时节约产品内部空间，减轻产品重量，实现轻质小型化要求；(2) The spool of the present invention reduces the number of parts by adopting an integrated design, and is easy to assemble the whole machine and process parts; by adopting springs, it can quickly and stably meet the product performance while saving the internal space of the product, reducing the weight of the product, and realizing light weight. Quality miniaturization requirements;
(3)本发明的阀座和阀体采用分离式结构，降低阀体、阀座的加工精度要求，工艺实现性强，提高成品率；(3) The valve seat and the valve body of the present invention adopt a separate structure, which reduces the processing accuracy requirements of the valve body and the valve seat, and has strong process realization and improves the yield;
(4)本发明的阀座与阀芯采用软-硬密封方式，充分保证了结构的密封性，实现产品高压密封；通过间隙配合，实现产品工作过程无自摩擦；同时阀座作为独立组件组装到阀体上，利于保证阀座与阀芯之间的配合相对位置要求，提高产品复位精度；(4) The valve seat and the valve core of the present invention adopt a soft-hard sealing method, which fully guarantees the tightness of the structure and realizes high-pressure sealing of the product; through clearance fit, the product has no self-friction in the working process; at the same time, the valve seat is assembled as an independent component To the valve body, it is beneficial to ensure the relative position requirements of the valve seat and the valve core, and improve the product reset accuracy;
(5)本发明通过金属膜片来敏感压力和阻隔工作介质的外漏，提升产品密封性能。(5) The present invention uses the metal diaphragm to sense the pressure and block the leakage of the working medium, so as to improve the sealing performance of the product.
附图说明Description of drawings
图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式detailed description
下面结合附图对本发明做进一步说明。The present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，本发明包括阀体1、阀座2、膜片组件3、弹簧座4、弹簧5、阀芯6、压紧装置7、压紧环8、主弹簧座9、调节球10；As shown in Figure 1, the present invention includes a valve body 1, a valve seat 2, a diaphragm assembly 3, a spring seat 4, a spring 5, a valve core 6, a pressing device 7, a pressing ring 8, a main spring seat 9, an adjusting ball 10;
膜片组件3的上端有凹槽；主弹簧座9上有与膜片组件3的凹槽相匹配的凹槽；The upper end of the diaphragm assembly 3 has a groove; the main spring seat 9 has a groove matching the groove of the diaphragm assembly 3;
阀座2为金属和非金属F4的组合体，在加工时先加工一个阀座毛坯后再通过热压工艺将非金属F4放到相应结构中，最后再加工成型，即通过热压非金属F4来实现零件的密封；金属材料通常为钛合金、铝合金、不锈钢等，非金属材料通常为塑料、橡胶等。The valve seat 2 is a combination of metal and non-metallic F4. During processing, a valve seat blank is processed first, and then the non-metallic F4 is placed in the corresponding structure through a hot-pressing process, and finally processed and formed, that is, the non-metallic F4 is processed by hot-pressing. To realize the sealing of parts; metal materials are usually titanium alloy, aluminum alloy, stainless steel, etc., and non-metal materials are usually plastic, rubber, etc.
以阀体1为基体，阀座2固定放置在阀体1的高压腔中，阀体1低压腔中设有限位槽；With the valve body 1 as the base, the valve seat 2 is fixedly placed in the high-pressure chamber of the valve body 1, and a limiting groove is provided in the low-pressure chamber of the valve body 1;
膜片组件3放置在阀体1低压腔中，膜片组件包括支架、压盘和金属膜片，三者通过电子束焊接成一体，膜片边缘与阀体1低压腔中限位槽接触；The diaphragm assembly 3 is placed in the low-pressure chamber of the valve body 1. The diaphragm assembly includes a bracket, a pressure plate and a metal diaphragm. The three are welded together by electron beams. The edge of the diaphragm is in contact with the limit groove in the low-pressure chamber of the valve body 1;
弹簧座4放置在阀体1的高压腔中，与锥形弹簧5大端面接触；The spring seat 4 is placed in the high-pressure chamber of the valve body 1 and is in contact with the large end surface of the conical spring 5;
阀芯6采用一体化设计方案，材料为不锈钢，阀芯6与阀座2接触部分为球面结构，阀芯6细长杆放置在阀座2的内部通道内，通过阀座2对阀芯6进行限位，使阀芯6沿阀体1的轴向可以上下运动；The valve core 6 adopts an integrated design scheme, and the material is stainless steel. The contact part between the valve core 6 and the valve seat 2 is a spherical structure. Limit the position so that the valve core 6 can move up and down along the axial direction of the valve body 1;
压紧装置7与阀体1通过电子束焊接固定，以用来固定阀座2和阀体1；The pressing device 7 and the valve body 1 are fixed by electron beam welding to fix the valve seat 2 and the valve body 1;
压紧环8放置在阀体1低压腔中，以便对膜片组件3进行定位；The compression ring 8 is placed in the low-pressure chamber of the valve body 1 to position the diaphragm assembly 3;
膜片组件3的凹槽与主弹簧座9的凹槽相匹配放置，两个凹槽之间形成一个球形空腔，调节球10放置在所形成的球形空腔中，通过调节球10实现主弹簧座9沿阀体1轴向对中；进而推动阀芯6沿阀体1的轴向上下运动。The groove of the diaphragm assembly 3 is matched with the groove of the main spring seat 9, and a spherical cavity is formed between the two grooves. The adjusting ball 10 is placed in the formed spherical cavity, and the main spring is realized by adjusting the ball 10. The spring seat 9 is centered along the axial direction of the valve body 1 ; and then pushes the valve core 6 to move up and down along the axial direction of the valve body 1 .
本发明工作过程如下：The working process of the present invention is as follows:
高压气体从入口处接入，通过流道进入到阀体内腔后，阀芯在运动副和弹簧的作用下开始沿阀体轴向进行运动，以期调节产品的流量和出口压力，待低压腔压力达到要求后建立稳定平衡，低压压力通过出口处提供给下游使用。The high-pressure gas enters from the inlet and enters the inner cavity of the valve body through the flow channel. The valve core starts to move along the axial direction of the valve body under the action of the kinematic pair and the spring, in order to adjust the flow rate of the product and the outlet pressure. After reaching the requirements, a stable balance is established, and the low pressure is provided to the downstream through the outlet.
气体入口压力范围为0.35～2.0MPa，出口气体压力范围为0.1～0.2MPa连续可调，额定流量为0.03mg/s。The gas inlet pressure range is 0.35-2.0MPa, the outlet gas pressure range is 0.1-0.2MPa and is continuously adjustable, and the rated flow rate is 0.03mg/s.
本发明未公开技术属本领域技术人员公知常识。The undisclosed technologies of the present invention belong to the common knowledge of those skilled in the art.
Claims (10)
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| CN (1) | CN106168303B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678388A (en) * | 2017-02-27 | 2017-05-17 | 曹可星 | Step-by-step direct-acting electromagnetic valve |
| CN111590186A (en) * | 2020-05-29 | 2020-08-28 | 西安西材三川智能制造有限公司 | Welding method for dissimilar metal material membrane component |
| CN111734842A (en) * | 2020-07-17 | 2020-10-02 | 大连万博隆流体设备有限公司 | A new type of precision back pressure valve with gap inlet and outlet structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678388A (en) * | 2017-02-27 | 2017-05-17 | 曹可星 | Step-by-step direct-acting electromagnetic valve |
| CN111590186A (en) * | 2020-05-29 | 2020-08-28 | 西安西材三川智能制造有限公司 | Welding method for dissimilar metal material membrane component |
| CN111590186B (en) * | 2020-05-29 | 2022-02-22 | 西安西材三川智能制造有限公司 | Welding method for dissimilar metal material membrane component |
| CN111734842A (en) * | 2020-07-17 | 2020-10-02 | 大连万博隆流体设备有限公司 | A new type of precision back pressure valve with gap inlet and outlet structure |
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| CN106168303B (en) | 2019-03-26 |
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