CN108375999A - A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder - Google Patents
A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder Download PDFInfo
- Publication number
- CN108375999A CN108375999A CN201810488467.3A CN201810488467A CN108375999A CN 108375999 A CN108375999 A CN 108375999A CN 201810488467 A CN201810488467 A CN 201810488467A CN 108375999 A CN108375999 A CN 108375999A
- Authority
- CN
- China
- Prior art keywords
- valve
- cylinder
- solenoid valve
- pressure
- solenoid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000001802 infusion Methods 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 33
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000002474 experimental method Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
技术领域technical field
本发明属于电气控制设备，涉及稳压技术，具体是一种基于并联式气缸的流量稳压装置及其稳压方法。The invention belongs to electrical control equipment and relates to a voltage stabilizing technology, in particular to a flow stabilizing device and a stabilizing method based on a parallel cylinder.
背景技术Background technique
当设备工作时对输出压力的稳定有较高精度要求时，就要对压力容器内的介质进行稳压，流量稳压装置就是对压力容器内的介质输出压力进行稳压的一种新的方式。对易燃易爆液体加压，当前工业中常用的方法是采用惰性高压气体增压，通过调压阀调节来稳定压力，通过蓄能器来减小液体压力波动。这种控制技术有以下不足：a.无法实现设备工作过程中稳压；b.无法满足设备要求压力稳定性时间长，需要经常性对加压容器补液的需求；c.气缸在补液时压力波动控制难度较大；d.造价高，调压阀和蓄能器增加了设备的造价。When the equipment has high precision requirements for the stability of the output pressure when the equipment is working, it is necessary to stabilize the pressure of the medium in the pressure vessel. The flow regulator is a new way to stabilize the output pressure of the medium in the pressure vessel. . To pressurize flammable and explosive liquids, the current common method in the industry is to use inert high-pressure gas to pressurize, adjust the pressure through a pressure regulating valve to stabilize the pressure, and use an accumulator to reduce liquid pressure fluctuations. This control technology has the following deficiencies: a. It is impossible to realize the pressure stabilization during the working process of the equipment; b. It cannot meet the requirements of the equipment for a long time of pressure stability, and it needs to frequently replenish the liquid in the pressurized container; c. The pressure of the cylinder fluctuates during liquid replenishment The control is difficult; d. The cost is high, and the pressure regulating valve and the accumulator increase the cost of the equipment.
经检索，目前尚未发现对与本专利申请相似的针对并联式气缸进行流量稳压的专利文献。After retrieval, no patent literature on flow stabilization and pressure regulation for parallel cylinders similar to this patent application has been found.
发明内容Contents of the invention
本发明所需要解决的技术问题是克服现有技术的不足之处，提供一种可长时间提供稳定压力液体、造价大大降低的基于并联式气缸的流量稳压装置及其稳压方法。The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a parallel-connected cylinder-based flow rate regulator and its method that can provide stable pressure liquid for a long time and greatly reduce the cost.
本发明解决其技术问题是采取以下技术方案实现的：The present invention solves its technical problem and realizes by taking the following technical solutions:
一种基于并联式气缸的流量稳压装置，包括补液泵(14)、储液罐(13)、第一电磁阀通断阀(8)、第二电磁阀通断阀(9)，第一气缸(4)、第二气缸(5)、第一限位传感器(18)、第二限位传感器(19)、第一电气比例阀(2)、第二电气比例阀(3)、氮气源(1)、第三电磁阀通断阀(6)、第四电磁阀通断阀(7)、压力变送器(15)、PLC(16)、上位机(17)、第五电磁阀通断阀(12)、空气源(10)，补液泵(14)与储液罐(13)相接，补液泵的另一端通过第一电磁阀通断阀(8)和第二电磁阀通断阀(9)分别与第一气缸(4)和第二气缸(5)相接，第一气缸(4)和第二气缸(5)外部分别与第一限位传感器(18)和第二限位传感器(19)相接，同时第一气缸(4)和第二气缸(5)通过第一电气比例阀(2)和第二电气比例阀(3)与氮气源(1)相接，通过第三电磁阀通断阀(6)和第四电磁阀通断阀(7)与压力变送器(15)相接,压力变送器(15)的输出端与PLC(16)控制输入端相接，PLC(16)与上位机(17)相接；补液泵的另一端第五电磁阀通断阀(12)通过气源压力表(11)与空气源(10)相接，由此通过管路设计以及五个电磁阀通断阀实现了第一气缸(4)和第二气缸(5)以并联的方式分别与补液泵(14)、压力变送器(15)和氮气源(1)相接。A flow and pressure stabilizing device based on a parallel cylinder, comprising a liquid replenishment pump (14), a liquid storage tank (13), a first electromagnetic valve on-off valve (8), a second electromagnetic valve on-off valve (9), the first Air cylinder (4), second air cylinder (5), first limit sensor (18), second limit sensor (19), first electrical proportional valve (2), second electrical proportional valve (3), nitrogen source (1), third solenoid valve on-off valve (6), fourth solenoid valve on-off valve (7), pressure transmitter (15), PLC (16), host computer (17), fifth solenoid valve on-off valve The shut-off valve (12), the air source (10), the liquid replenishment pump (14) is connected with the liquid storage tank (13), and the other end of the liquid replenishment pump is turned on and off by the first solenoid valve on-off valve (8) and the second solenoid valve The valve (9) is connected with the first cylinder (4) and the second cylinder (5) respectively, and the outside of the first cylinder (4) and the second cylinder (5) are connected with the first limit sensor (18) and the second limit sensor (18) respectively. The position sensor (19) is connected, and the first cylinder (4) and the second cylinder (5) are connected with the nitrogen source (1) through the first electric proportional valve (2) and the second electric proportional valve (3). The third electromagnetic valve on-off valve (6) and the fourth electromagnetic valve on-off valve (7) are connected to the pressure transmitter (15), and the output end of the pressure transmitter (15) is connected to the PLC (16) control input end connected, the PLC (16) is connected with the host computer (17); the fifth solenoid valve on-off valve (12) at the other end of the liquid infusion pump is connected with the air source (10) through the air source pressure gauge (11), thus Through pipeline design and five solenoid valve on-off valves, the first cylinder (4) and the second cylinder (5) are connected in parallel with the replenishment pump (14), pressure transmitter (15) and nitrogen source ( 1) connected.
而且，每个电磁阀通断阀(8)、(9)、(6)、(7)、(12)、电气比例阀(2)和(3)、压力变送器(15)和限位传感器(18)和(19)的输入端连接有可编程控制器PLC(16)。Moreover, each solenoid valve on-off valve (8), (9), (6), (7), (12), electric proportional valve (2) and (3), pressure transmitter (15) and limit The input ends of the sensors (18) and (19) are connected with a programmable controller PLC (16).
而且，所述气缸的容积为7.85L，控制其工作容积为5.2L，内部与增压介质接触部分使用耐腐蚀的氟胶圈。Moreover, the volume of the cylinder is 7.85L, and its working volume is controlled to be 5.2L, and the part in contact with the pressurized medium inside uses a corrosion-resistant fluorine rubber ring.
而且，所述的储液罐的容积为40L，外形尺寸为500mm×350mm×300mm，储液罐液位控制由液面高差压法来控制，液面高差Δh与压力的关系是 Moreover, the volume of the liquid storage tank is 40L, and its external dimensions are 500mm×350mm×300mm. The liquid level control of the liquid storage tank is controlled by the liquid level differential pressure method, and the relationship between the liquid level difference Δh and the pressure is
而且，所述储液罐的材料采用不锈钢。Moreover, the material of the liquid storage tank is stainless steel.
而且，所述稳压装置采用并联气缸，其稳压方法的步骤为：Moreover, the voltage stabilizing device adopts parallel cylinders, and the steps of its voltage stabilizing method are:
a、初始补液阶段：第三电磁阀通断阀(6)和第四电磁阀通断阀(7)关闭，第一电磁阀通断阀(8)和第二电磁阀通断阀(9)打开，第一电气比例阀(2)和第二电气比例阀(3)调至最小，第五电磁阀通断阀(12)打开，补液泵(14)开始工作，在上位机(17)的控制下，到达指定时刻，第五电磁阀通断阀(12)关闭，补液泵(14)停止，第一电磁阀通断阀(8)和第二电磁阀通断阀(9)关闭；a. Initial replenishment stage: the third solenoid valve on-off valve (6) and the fourth solenoid valve on-off valve (7) are closed, the first solenoid valve on-off valve (8) and the second solenoid valve on-off valve (9) Open, the first electrical proportional valve (2) and the second electrical proportional valve (3) are adjusted to the minimum, the fifth solenoid valve on-off valve (12) is opened, and the replenishment pump (14) starts to work. Under the control, when the specified time is reached, the fifth solenoid valve on-off valve (12) is closed, the infusion pump (14) is stopped, and the first solenoid valve on-off valve (8) and the second solenoid valve on-off valve (9) are closed;
b、加压阶段：第一电气比例阀(2)工作，第二电气比例阀(3)关闭，第三电磁阀通断阀(6)打开，第一电磁阀通断阀(8)、第二电磁阀通断阀(9)和第四电磁阀通断阀(7)关闭，对第一气缸(4)加压，设备所需的压力值由压力变送器(15)实时检测获得，并发送到下位机PLC(16)反馈给上位机(17)，根据压力值大小，上位机(17)发送调节信号，调节第一电气比例阀(2)控制电压值，从而达到压力稳定控制，使其稳定在需要的压力值；b. Pressurization stage: the first electric proportional valve (2) works, the second electric proportional valve (3) closes, the third solenoid valve on-off valve (6) opens, the first solenoid valve on-off valve (8), the second The second solenoid valve on-off valve (9) and the fourth solenoid valve on-off valve (7) are closed to pressurize the first cylinder (4), and the pressure value required by the equipment is obtained by real-time detection by the pressure transmitter (15). and sent to the lower computer PLC (16) to feed back to the upper computer (17), according to the pressure value, the upper computer (17) sends an adjustment signal to adjust the control voltage value of the first electric proportional valve (2), thereby achieving pressure stability control, Make it stable at the required pressure value;
c、工作阶段：第一气缸(4)达到稳定的压力后，设备工作，同时第二电气比例阀(3)工作，对第二气缸(5)加压至设定压力；当第一气缸(4)的限位传感器(18)检测到介质不足时，该信号发送到下位机PLC(16)，切换到第二气缸(5)，第三电磁阀通断阀(6)关闭，第四电磁阀通断阀(7)打开，然后第一电磁阀通断阀(8)打开，对第一气缸(4)补液，补液后第一电气比例阀(2)工作加压，按此过程循环提供持续稳定的压力；c. Working stage: After the first cylinder (4) reaches a stable pressure, the equipment works, and at the same time the second electric proportional valve (3) works to pressurize the second cylinder (5) to the set pressure; when the first cylinder ( 4) When the limit sensor (18) detects that the medium is insufficient, the signal is sent to the lower computer PLC (16) to switch to the second cylinder (5), the third solenoid valve on-off valve (6) is closed, and the fourth solenoid valve The valve on-off valve (7) is opened, and then the first solenoid valve on-off valve (8) is opened to replenish fluid to the first cylinder (4). After fluid replenishment, the first electric proportional valve (2) works and pressurizes. constant pressure;
d、泄压阶段：试验终止，要对第一气缸(4)泄压，第三电磁阀通断阀(6)、第四电磁阀通断阀(7)打开，第一电磁阀通断阀(8)、第二电磁阀通断阀(9)、第五电磁阀通断阀(12)关闭，泄压结束。d. Pressure relief stage: when the test is terminated, the first cylinder (4) should be relieved, the third solenoid valve on-off valve (6), the fourth solenoid valve on-off valve (7) open, the first solenoid valve on-off valve (8), the second electromagnetic valve on-off valve (9), the fifth electromagnetic valve on-off valve (12) are closed, and the pressure relief ends.
本发明的优点效果是：Advantageous effect of the present invention is:
本发明由于采用并联式气缸，两缸独立恒压控制，等压交替工作，保证输出介压力稳定，同时实现设备工作过程中稳压，能够长时间持续提供稳定压力的介质，可在加压容器补液过程中依然实施稳定压力控制，这是第一；其次，由于本设计在气缸外部装有与PCL相接的限位传感器，可以通过上位机实时检测气缸内的液面情况；第三，本设计的通断电磁阀皆由PCL进行控制，气缸内的压力由压力变送器上传至PLC，所以本技术便于自动化控制。第四，本设计采用经过改造的普通气缸，替换造价较高的活塞式蓄能器和调节阀，故降低了成本；第五，本设计采用气缸，与蓄能器相比具有灵活的工作压力范围，同时拥有良好的稳压精确度。Because the present invention adopts parallel cylinders, the two cylinders are independently controlled by constant pressure, and work alternately at equal pressure to ensure the stability of the output medium pressure. At the same time, it can stabilize the pressure during the working process of the equipment, and can continuously provide stable pressure medium for a long time. It can be used in pressurized containers. Stable pressure control is still implemented during the liquid replenishment process, which is the first; secondly, because this design is equipped with a limit sensor connected to the PCL outside the cylinder, the liquid level in the cylinder can be detected in real time through the host computer; third, this design The designed on-off solenoid valves are all controlled by PCL, and the pressure in the cylinder is uploaded to PLC by the pressure transmitter, so this technology is convenient for automatic control. Fourth, this design uses a modified ordinary cylinder to replace the high-cost piston accumulator and regulating valve, so the cost is reduced; fifth, this design uses a cylinder, which has flexible working pressure compared with the accumulator range, while having good voltage regulation accuracy.
附图说明Description of drawings
图1是本发明的控制系统图。Fig. 1 is a control system diagram of the present invention.
具体实施方式Detailed ways
下面结合附图并通过具体实施例对本发明作进一步详述，以下实施例只是描述性的，不是限定性的，不能以此限定本发明的保护范围。The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
一种基于并联式气缸的流量稳压装置，如图1所示，包括补液泵14、储液罐13、第一电磁阀通断阀8、第二电磁阀通断阀9，第一气缸4、第二气缸5、第一限位传感器18、第二限位传感器19、第一电气比例阀2、第二电气比例阀3、氮气源1、第三电磁阀通断阀6、第四电磁阀通断阀7、压力变送器15、PLC 16、上位机17、第五电磁阀通断阀12、空气源10。其连接关系为：A flow rate stabilizing device based on parallel cylinders, as shown in Figure 1, includes a liquid replenishment pump 14, a liquid storage tank 13, a first solenoid valve on-off valve 8, a second solenoid valve on-off valve 9, a first cylinder 4 , the second cylinder 5, the first limit sensor 18, the second limit sensor 19, the first electric proportional valve 2, the second electric proportional valve 3, the nitrogen source 1, the third solenoid valve on-off valve 6, the fourth solenoid valve Valve on-off valve 7, pressure transmitter 15, PLC 16, host computer 17, fifth solenoid valve on-off valve 12, air source 10. Its connection relationship is:
补液泵14与储液罐13相接，补液泵的另一端通过第一电磁阀通断阀8和第二电磁阀通断阀9分别与第一气缸4和第二气缸5相接，第一气缸4和第二气缸5外部分别与第一限位传感器18和第二限位传感器19相接，同时第一气缸4和第二气缸5通过第一电气比例阀2和第二电气比例阀3与氮气源1相接，通过第三电磁阀通断阀6和第四电磁阀通断阀7与压力变送器15相接,压力变送器15的输出端与PLC 16控制输入端相接，PLC 16与上位机17相接；补液泵的另一端第五电磁阀通断阀12通过气源压力表11与空气源10相接，由此通过管路设计以及五个电磁阀通断阀实现了第一气缸4和第二气缸5以并联的方式分别与补液泵14、压力变送器15和氮气源1相接。The liquid replenishment pump 14 is connected with the liquid storage tank 13, and the other end of the liquid replenishment pump is connected with the first cylinder 4 and the second cylinder 5 respectively through the first solenoid valve on-off valve 8 and the second solenoid valve on-off valve 9. The outside of the cylinder 4 and the second cylinder 5 are respectively connected to the first limit sensor 18 and the second limit sensor 19, while the first cylinder 4 and the second cylinder 5 pass through the first electric proportional valve 2 and the second electric proportional valve 3 It is connected with the nitrogen source 1, connected with the pressure transmitter 15 through the third solenoid valve on-off valve 6 and the fourth solenoid valve on-off valve 7, and the output end of the pressure transmitter 15 is connected with the PLC 16 control input end , the PLC 16 is connected to the host computer 17; the fifth solenoid valve on-off valve 12 at the other end of the infusion pump is connected to the air source 10 through the air source pressure gauge 11, thus through the pipeline design and the five solenoid valve on-off valves It is realized that the first cylinder 4 and the second cylinder 5 are respectively connected with the replenishment pump 14 , the pressure transmitter 15 and the nitrogen source 1 in parallel.
每个电磁阀通断阀8、9、6、7、12、电气比例阀2和3、压力变送器15和限位传感器18和19的输入端连接有可编程控制器PLC 16。The input ends of each electromagnetic valve on-off valve 8 , 9 , 6 , 7 , 12 , electric proportional valve 2 and 3 , pressure transmitter 15 and limit sensors 18 and 19 are connected with programmable controller PLC 16 .
上述气缸的容积为7.85L，控制其工作容积为5.2L，内部与增压介质接触部分使用耐腐蚀的氟胶圈。The volume of the above-mentioned cylinder is 7.85L, and its working volume is controlled to be 5.2L. The part in contact with the pressurized medium inside uses a corrosion-resistant fluorine rubber ring.
所述的储液罐的容积为40L，外形尺寸为500mm×350mm×300mm，储液罐液位控制由液面高差压法来控制，液面高差Δh与压力的关系是为了提高储液罐的抗腐蚀性，材料采用不锈钢。The volume of the liquid storage tank is 40L, and its external dimensions are 500mm×350mm×300mm. The liquid level control of the liquid storage tank is controlled by the liquid level differential pressure method. The relationship between the liquid level difference Δh and the pressure is In order to improve the corrosion resistance of the liquid storage tank, the material is stainless steel.
该稳压装置为了提供持续稳定的压力，采用并联气缸，其工作过称为：In order to provide continuous and stable pressure, the pressure stabilizing device adopts parallel cylinders, and its working process is called:
a、初始补液阶段：第三电磁阀通断阀6和第四电磁阀通断阀7关闭，第一电磁阀通断阀8和第二电磁阀通断阀9打开，第一电气比例阀2和第二电气比例阀3调至最小，第五电磁阀通断阀12打开，补液泵14开始工作，在上位机17的控制下，到达指定时刻(根据不同设备要求设定)，第五电磁阀通断阀12关闭，补液泵14停止，第一电磁阀通断阀8和第二电磁阀通断阀9关闭。a. Initial replenishment stage: the third solenoid valve on-off valve 6 and the fourth solenoid valve on-off valve 7 are closed, the first solenoid valve on-off valve 8 and the second solenoid valve on-off valve 9 are opened, the first electric proportional valve 2 And the second electrical proportional valve 3 is adjusted to the minimum, the fifth solenoid valve on-off valve 12 is opened, and the replenishment pump 14 starts to work. The valve on-off valve 12 is closed, the infusion pump 14 is stopped, and the first electromagnetic valve on-off valve 8 and the second electromagnetic valve on-off valve 9 are closed.
b、加压阶段：第一电气比例阀2工作，第二电气比例阀3关闭，第三电磁阀通断阀6打开，第一电磁阀通断阀8、第二电磁阀通断阀9和第四电磁阀通断阀7关闭，对第一气缸4加压，设备所需的压力值由压力变送器15实时检测获得，并发送到下位机PLC 16反馈给上位机17，根据压力值大小，上位机17发送调节信号，调节第一电气比例阀2控制电压值，从而达到压力稳定控制，使其稳定在需要的压力值。b. Pressurization stage: the first electric proportional valve 2 works, the second electric proportional valve 3 closes, the third solenoid valve on-off valve 6 opens, the first solenoid valve on-off valve 8, the second solenoid valve on-off valve 9 and The fourth electromagnetic valve on-off valve 7 is closed to pressurize the first cylinder 4. The pressure value required by the equipment is obtained by real-time detection by the pressure transmitter 15 and sent to the lower computer PLC 16 to feed back to the upper computer 17. According to the pressure value The upper computer 17 sends an adjustment signal to adjust the control voltage value of the first electric proportional valve 2, so as to achieve pressure stability control and make it stable at the required pressure value.
c、工作阶段：第一气缸4达到稳定的压力后，设备工作，同时第二电气比例阀3工作，对第二气缸5加压至设定压力；当第一气缸4的限位传感器18检测到介质不足时，该信号发送到下位机PLC 16，切换到第二气缸5，第三电磁阀通断阀6关闭，第四电磁阀通断阀7打开，然后第一电磁阀通断阀8打开，对第一气缸4补液，补液后第一电气比例阀2工作加压。按此过程循环提供持续稳定的压力。c. Working stage: After the first cylinder 4 reaches a stable pressure, the equipment works, and at the same time the second electric proportional valve 3 works, pressurizing the second cylinder 5 to the set pressure; when the limit sensor 18 of the first cylinder 4 detects When the medium is insufficient, the signal is sent to the lower computer PLC 16 to switch to the second cylinder 5, the third solenoid valve on-off valve 6 is closed, the fourth solenoid valve on-off valve 7 is opened, and then the first solenoid valve on-off valve 8 Open to replenish fluid to the first cylinder 4, after the fluid replenishment, the first electric proportional valve 2 works and pressurizes. Cycle through this process to provide continuous and stable pressure.
d、泄压阶段：试验终止，要对第一气缸4泄压，第三电磁阀通断阀6、第四电磁阀通断阀7打开，第一电磁阀通断阀8、第二电磁阀通断阀9、第五电磁阀通断阀12关闭，泄压结束。d. Pressure relief stage: when the test is terminated, the first cylinder 4 should be relieved, the third solenoid valve on-off valve 6 and the fourth solenoid valve on-off valve 7 are opened, the first solenoid valve on-off valve 8 and the second solenoid valve The on-off valve 9 and the fifth electromagnetic valve on-off valve 12 are closed, and the pressure relief is completed.
本设计的并联式气缸装置在实现稳压过程中，有两路关键控制：一是单缸压力稳定性控制；二是切换工作缸时压力稳定性控制。第一气缸4和第二气缸5由补液泵14通过PLC16控制第四电磁阀通断阀7和第二电磁阀通断阀9实现。In the process of stabilizing the pressure of the parallel cylinder device in this design, there are two key controls: one is single cylinder pressure stability control; the other is pressure stability control when switching working cylinders. The first cylinder 4 and the second cylinder 5 are realized by controlling the fourth electromagnetic valve on-off valve 7 and the second electromagnetic valve on-off valve 9 through the PLC 16 by the replenishment pump 14 .
尽管为说明目的公开了本发明的实施例和附图，但是本领域的技术人员可以理解：在不脱离本发明及所附权利要求的精神和范围内，各种替换、变化和修改都是可能的，因此，本发明的范围不局限于实施例和附图所公开的内容。Although the embodiments and drawings of the present invention are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims Therefore, the scope of the present invention is not limited to what is disclosed in the embodiments and drawings.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488467.3A CN108375999A (en) | 2018-05-21 | 2018-05-21 | A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810488467.3A CN108375999A (en) | 2018-05-21 | 2018-05-21 | A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108375999A true CN108375999A (en) | 2018-08-07 |
Family
ID=63033570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810488467.3A Pending CN108375999A (en) | 2018-05-21 | 2018-05-21 | A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339742A (en) * | 2019-07-10 | 2019-10-18 | 南方科技大学 | High-throughput direct writing equipment, direct writing method and liquid phase method preparation system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205263A (en) * | 2006-02-02 | 2007-08-16 | Denso Corp | Electromagnetic actuator for fuel injection device |
| CN201003474Y (en) * | 2006-09-01 | 2008-01-09 | 方先鹿 | Reciprocating-piston type double acting hydraulic compressor |
| JP2011134336A (en) * | 2011-01-24 | 2011-07-07 | Ckd Corp | Vacuum pressure control system and vacuum pressure control program |
| CN102182534A (en) * | 2011-05-09 | 2011-09-14 | 徐君波 | Tail gas purification device for diesel engine |
| CN104062086A (en) * | 2013-03-22 | 2014-09-24 | 上海众源燃油分配器制造有限公司 | Device for leak detection of fuel oil distributor assembly product |
| US20160178486A1 (en) * | 2014-12-22 | 2016-06-23 | Total Analytical Consulting Inc. | Hydraulically coupled dual floating piston apparatus and methods of using same for sampling high pressure fluids |
| CN206601219U (en) * | 2017-03-17 | 2017-10-31 | 山东建强机械有限公司 | A kind of air tightness detection apparatus controlled based on PLC |
-
2018
- 2018-05-21 CN CN201810488467.3A patent/CN108375999A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007205263A (en) * | 2006-02-02 | 2007-08-16 | Denso Corp | Electromagnetic actuator for fuel injection device |
| CN201003474Y (en) * | 2006-09-01 | 2008-01-09 | 方先鹿 | Reciprocating-piston type double acting hydraulic compressor |
| JP2011134336A (en) * | 2011-01-24 | 2011-07-07 | Ckd Corp | Vacuum pressure control system and vacuum pressure control program |
| CN102182534A (en) * | 2011-05-09 | 2011-09-14 | 徐君波 | Tail gas purification device for diesel engine |
| CN104062086A (en) * | 2013-03-22 | 2014-09-24 | 上海众源燃油分配器制造有限公司 | Device for leak detection of fuel oil distributor assembly product |
| US20160178486A1 (en) * | 2014-12-22 | 2016-06-23 | Total Analytical Consulting Inc. | Hydraulically coupled dual floating piston apparatus and methods of using same for sampling high pressure fluids |
| CN206601219U (en) * | 2017-03-17 | 2017-10-31 | 山东建强机械有限公司 | A kind of air tightness detection apparatus controlled based on PLC |
Non-Patent Citations (5)
| Title |
|---|
| ORIOL COLOM´ES等: "《Mixed finite element methods with convection stabilization for the large eddy simulation of incompressible turbulent flows》", 《COMPUT. METHODS APPL. MECH. ENGRG.》, pages 294 - 318 * |
| TRANSFORMERS COMMITTEE: "《Standard Terminology for Power and Distribution Transformers》", 《IEEE》, pages 1 - 56 * |
| 徐静: "《基于PLC 机电传动控制综合性实验的启发性教学研究》", 《应用技术》, pages 18 - 23 * |
| 李志刚: "《某重型自卸车排气辅助制动效果不良的探索和改进》", 《汽车实用技术》, no. 9, pages 37 - 39 * |
| 梁家玉 等: "《汽油机电磁阀式喷油器耐久性试验台设计》", 《军事交通学院学报》, vol. 18, no. 12, pages 53 - 57 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339742A (en) * | 2019-07-10 | 2019-10-18 | 南方科技大学 | High-throughput direct writing equipment, direct writing method and liquid phase method preparation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111947029B (en) | Stable supercritical carbon dioxide gas supply system and method | |
| CN205352904U (en) | It becomes interior rock stress sensitivity test of pressure device to decide confined pressure | |
| CN203981406U (en) | Laboratory oil supply system | |
| CN103115041B (en) | Hydraulic pressure automatic control device | |
| CN104010734B (en) | For determining the measurement mechanism of the glue volume flow in sizer | |
| CN108375999A (en) | A kind of flow stable-pressure device and its method for stabilizing voltage based on parallel cylinder | |
| CN202554795U (en) | Test-control system for hydraulic test | |
| CN101660519A (en) | Electrical feedback electro-hydraulic proportional pressure flux compound control method and variable output pump | |
| CN103741412A (en) | Industry canvas gum dipping trough with constant liquid level | |
| CN106438555B (en) | Hydraulic control valve and hydraulic system | |
| CN205013404U (en) | Diaphragm pump high pressure capsule type energy storage ware pressure automatic regulating apparatus | |
| CN203857102U (en) | Differential pressure valve | |
| CN104100584A (en) | Speed control system and method for movable crossbeam of hydraulic forging press | |
| CN204270164U (en) | A pressure control system with two-way flow of pressure test medium | |
| CN105645343B (en) | A kind of two-way pressure filling balance Control Scheme method | |
| CN209265287U (en) | A 400MPa ultra-high pressure gas rapid loading device | |
| CN208384434U (en) | A kind of flow stable-pressure device based on parallel cylinder | |
| CN202778868U (en) | Coating flow control device | |
| CN212645966U (en) | Gas circuit control structure for pressure tester | |
| CN206352606U (en) | A kind of new adjustable voltage supply system | |
| CN109709995A (en) | A high-precision fluid automatic pressure control device and pressure control method thereof | |
| CN204512597U (en) | Petroleum vapor recovery electronics gas liquid ratio modulating valve | |
| CN101260970B (en) | Constant temperature constant pressure oil cylinder | |
| CN103933781A (en) | On-line testing system for life of water filtering element | |
| CN206889372U (en) | A kind of hydraulic control system of accumulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |