CN201963643U - Cylinder exhaust recovery energy-saving control device - Google Patents
Cylinder exhaust recovery energy-saving control device Download PDFInfo
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- CN201963643U CN201963643U CN2010206130487U CN201020613048U CN201963643U CN 201963643 U CN201963643 U CN 201963643U CN 2010206130487 U CN2010206130487 U CN 2010206130487U CN 201020613048 U CN201020613048 U CN 201020613048U CN 201963643 U CN201963643 U CN 201963643U
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Abstract
Description
(一)技术领域(1) Technical field
本实用新型涉及机械传动、节能技术领域，具体讲是一种气压传动系统中的节能技术。The utility model relates to the technical field of mechanical transmission and energy saving, in particular to an energy-saving technology in a pneumatic transmission system.
(二)背景技术(2) Background technology
在现代化国家中，由于使用压缩空气为工作介质的气动系统具有节能、无污染、高效、低成本、结构相对简单、安全可靠、可用于易燃易爆和有辐射危险场合等优点，而被广泛应用于各行业、尤其是工业自动化领域，是各个工业部门中提高生产效率的重要手段，在国民经济建设中起着越来越重要的作用。然而，作为气动系统中应用最广泛的执行元件——气缸来说，其完成一个工作行程后，气缸原工作腔内的压缩空气一般直接排向大气，对长期运转的生产设备来说，造成了很大的能量损失。我们以现代化的机械类企业为例，其能源消耗比例中，压缩空气的使用占整体能源消耗的20％，其中气缸往复动作的排气占了整体的12％。因此，气缸排气回收节能的研究，具有重大的节能意义和工程应用价值。In modern countries, because the pneumatic system using compressed air as the working medium has the advantages of energy saving, no pollution, high efficiency, low cost, relatively simple structure, safety and reliability, and can be used in places with flammable, explosive and radiation hazards, it is widely used. Applied in various industries, especially in the field of industrial automation, it is an important means to improve production efficiency in various industrial sectors, and it plays an increasingly important role in the construction of the national economy. However, as the most widely used actuator in the pneumatic system—the cylinder, after it completes a working stroke, the compressed air in the original working chamber of the cylinder is generally directly discharged to the atmosphere, which causes serious problems for long-term operation of production equipment. Great energy loss. Let's take a modern mechanical enterprise as an example. Among its energy consumption, the use of compressed air accounts for 20% of the overall energy consumption, and the exhaust of the reciprocating action of the cylinder accounts for 12% of the overall energy consumption. Therefore, the research on cylinder exhaust recovery and energy saving has great energy saving significance and engineering application value.
(三)发明内容(3) Contents of the invention
本实用新型基于利用蓄能气罐回收气缸排气腔的部分能量再做功的节能思想出发，提出了一种新的气缸排气回收节能思路，即通过设置排气回收装置将气缸排气腔的压缩空气集中回收起来，当储气罐压力达到期望压力值时，把回收气罐作为中压空气源再利用。该节能系统不仅可实现气缸排气腔有压气体的回收，而且回收到气罐内的压缩空气可不经任何处理直接在气动系统中应用。The utility model is based on the energy-saving idea of recovering part of the energy of the exhaust chamber of the cylinder by using the energy-storage gas tank and then doing work, and proposes a new idea of energy-saving recovery of the exhaust gas of the cylinder, that is, by setting an exhaust recovery device to reduce the energy of the exhaust chamber of the cylinder The compressed air is collected and recovered, and when the pressure of the air storage tank reaches the desired pressure value, the recovered air tank is reused as a medium-pressure air source. The energy-saving system can not only realize the recovery of pressurized gas in the exhaust chamber of the cylinder, but also the compressed air recovered into the gas tank can be directly used in the pneumatic system without any treatment.
本实用新型解决其技术问题所采用的技术方案是：气缸排气回收节能控制装置，包括压缩气源(1)、单向节流阀(2)、气缸(3)、压力开关(4)、换向阀(5)，其特征在于：1、包括回收切换控制装置，该装置由双电控换向阀(6)、差压开关(7)、单向阀(8)、回收气罐(9)以及单电控换向阀(10)组成。2、当差压开关(7)上、下游压差信号小于0.05MPa时，气缸(3)排气腔压缩空气流经双电控换向阀(6)、单电控换向阀(10)以及单向阀(8)回收至气罐(9)；当差压开关(7)上、下游压差信号大于等于0.05MPa时，控制单电控换向阀(10)换向，单电控换向阀(10)左位接通，气缸(3)排气腔压缩空气经单电控换向阀(10)排向大气，实现排气回收的切换。The technical solution adopted by the utility model to solve the technical problem is: cylinder exhaust recovery energy-saving control device, including compressed air source (1), one-way throttle valve (2), cylinder (3), pressure switch (4), The reversing valve (5) is characterized in that: 1. It includes a recovery switching control device, which consists of a double electric control reversing valve (6), a differential pressure switch (7), a one-way valve (8), a recovery gas tank ( 9) and a single solenoid control reversing valve (10). 2. When the differential pressure signal between the upstream and downstream of the differential pressure switch (7) is less than 0.05MPa, the compressed air in the exhaust chamber of the cylinder (3) flows through the double solenoid control valve (6), single solenoid control valve (10) and The one-way valve (8) is recovered to the gas tank (9); when the differential pressure signal between the upstream and downstream of the differential pressure switch (7) is greater than or equal to 0.05MPa, the single solenoid control valve (10) is controlled to change direction, and the single solenoid control The left position of the valve (10) is connected, and the compressed air in the exhaust chamber of the cylinder (3) is discharged to the atmosphere through the single solenoid control reversing valve (10), realizing the switching of exhaust gas recovery.
本实用新型与现有技术相比既能对气缸排气腔压缩空气尽可能多的回收，又对气缸运动特性影响较小；排气回收时，系统排气回收效率可达70％以上；这表明该回收系统不仅节能效果显著，且具有良好的应用前景。Compared with the prior art, the utility model can recover as much compressed air as possible in the exhaust chamber of the cylinder, and has less influence on the motion characteristics of the cylinder; when the exhaust gas is recovered, the exhaust gas recovery efficiency of the system can reach more than 70%. It shows that the recovery system not only has remarkable energy-saving effect, but also has good application prospects.
(四)附图说明(4) Description of drawings
图1是本实用新型的工作原理图。Fig. 1 is a working principle diagram of the present utility model.
(五)具体实施方式(5) Specific implementation methods
如图1所示，已知气缸(3)上游压力p1，回收气罐(9)下游压力p2以及通过调节弹簧手柄设定的差压开关(7)压差ΔPsw。工作时，差压开关(7)实时检测压力差Δp＝p1-p2，当压力差Δp达到设定压力差ΔPsw＝0.05MPa时，差压开关(7)发出电信号，控制电磁阀(10)的切换。As shown in Fig. 1, the upstream pressure p 1 of the air cylinder (3), the downstream pressure p 2 of the recovery gas tank (9) and the differential pressure ΔP sw of the differential pressure switch (7) set by adjusting the spring handle are known. When working, the differential pressure switch (7) detects the pressure difference Δp=p 1 -p 2 in real time, and when the pressure difference Δp reaches the set pressure difference ΔP sw =0.05MPa, the differential pressure switch (7) sends out an electrical signal to control the solenoid valve (10) switch.
如图1所示状态下，气缸(3)排气腔与差压开关(7)上游管道口相连，回收气罐(9)与差压开关(7)下游管道口相连，当磁性开关(4)发出信号时，电磁阀(6)切换至右位，若气缸(3)排气腔与回收气罐(9)间压力差Δp大于调定排气回收切换控制压差ΔPsw时，差压开关(7)输出电信号使电磁阀(10)右位接通，气缸(3)排气腔的压缩空气流经节流阀(2)、换向阀(5)、电磁阀(6)和电磁阀(10)、单向阀(8)排向气罐(9)，从而实现排气回收，随着气罐(9)内回收气体逐渐增多，气罐(9)内压力越来越高，气缸(3)排气腔与气罐(9)间压力差越来越小，直至Δp达到或小于调定压差ΔPsw时，差压开关(7)停止输出电信号，这时电磁阀(10)复位，气缸(3)排气腔剩余气体排向大气。从而实现了气缸排气回收过程的切换控制。In the state shown in Figure 1, the exhaust chamber of the cylinder (3) is connected to the upstream pipeline port of the differential pressure switch (7), and the recovery gas tank (9) is connected to the downstream pipeline port of the differential pressure switch (7). When the magnetic switch (4 ) when the signal is sent, the solenoid valve (6) switches to the right position, if the pressure difference Δp between the exhaust chamber of the cylinder (3) and the recovery gas tank (9) is greater than the set pressure difference ΔP sw of the exhaust gas recovery switching control, the differential pressure The switch (7) outputs an electric signal to turn on the right position of the solenoid valve (10), and the compressed air in the exhaust chamber of the cylinder (3) flows through the throttle valve (2), reversing valve (5), solenoid valve (6) and The solenoid valve (10) and the one-way valve (8) discharge to the gas tank (9), so as to realize exhaust recovery. As the recovered gas in the gas tank (9) gradually increases, the pressure in the gas tank (9) becomes higher and higher , the pressure difference between the exhaust chamber of the cylinder (3) and the gas tank (9) becomes smaller and smaller until Δp reaches or is less than the set pressure difference ΔP sw , the differential pressure switch (7) stops outputting electrical signals, and the solenoid valve (10) reset, and the remaining gas in the exhaust chamber of the cylinder (3) is discharged to the atmosphere. Thus, the switching control of the cylinder exhaust recovery process is realized.
本实用新型不仅能够实现气缸排气回收控制过程的实时切换，且控制精度较高，操作方便，可靠性较好。通过对排气回收系统的回收效率的实测计算，排气回收时系统排气回收效率可达70％以上，这表明该回收系统不仅节能效果显著，且具有良好的应用前景。The utility model not only can realize the real-time switching of the cylinder exhaust recovery control process, but also has high control precision, convenient operation and good reliability. Through the actual measurement and calculation of the recovery efficiency of the exhaust recovery system, the exhaust recovery efficiency of the system can reach more than 70%, which shows that the recovery system not only has a significant energy-saving effect, but also has a good application prospect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206130487U CN201963643U (en) | 2010-11-10 | 2010-11-10 | Cylinder exhaust recovery energy-saving control device |
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| CN2010206130487U CN201963643U (en) | 2010-11-10 | 2010-11-10 | Cylinder exhaust recovery energy-saving control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179755A (en) * | 2018-09-25 | 2019-01-11 | 河海大学 | A kind of dedicated wastewater treatment and renovation device of type car washer |
| CN110307219A (en) * | 2018-03-20 | 2019-10-08 | 山东爱索能源科技有限公司 | A kind of novel cylinder exhaust overbottom pressure utilizes system |
| CN110733485A (en) * | 2019-10-25 | 2020-01-31 | 广西柳工机械股份有限公司 | Gas-assisted post-treatment gas taking system |
| CN113565838A (en) * | 2021-07-16 | 2021-10-29 | 大连海事大学 | Cylinder exhaust energy-saving system and method based on strain energy accumulator |
-
2010
- 2010-11-10 CN CN2010206130487U patent/CN201963643U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307219A (en) * | 2018-03-20 | 2019-10-08 | 山东爱索能源科技有限公司 | A kind of novel cylinder exhaust overbottom pressure utilizes system |
| CN109179755A (en) * | 2018-09-25 | 2019-01-11 | 河海大学 | A kind of dedicated wastewater treatment and renovation device of type car washer |
| CN109179755B (en) * | 2018-09-25 | 2021-10-19 | 河海大学 | A waste water treatment and reuse device dedicated to a gantry car washer |
| CN110733485A (en) * | 2019-10-25 | 2020-01-31 | 广西柳工机械股份有限公司 | Gas-assisted post-treatment gas taking system |
| CN113565838A (en) * | 2021-07-16 | 2021-10-29 | 大连海事大学 | Cylinder exhaust energy-saving system and method based on strain energy accumulator |
| CN113565838B (en) * | 2021-07-16 | 2024-12-06 | 大连海事大学 | A cylinder exhaust energy-saving system and method based on strain energy accumulator |
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Granted publication date: 20110907 Termination date: 20121110 |