CN210637527U - Energy-saving electromagnetic valve - Google Patents
Energy-saving electromagnetic valve Download PDFInfo
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- CN210637527U CN210637527U CN201920924697.XU CN201920924697U CN210637527U CN 210637527 U CN210637527 U CN 210637527U CN 201920924697 U CN201920924697 U CN 201920924697U CN 210637527 U CN210637527 U CN 210637527U
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- electromagnetic valve
- saving electromagnetic
- valve shaft
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Abstract
The utility model relates to an energy-conserving solenoid valve, including the valve shaft, energy-conserving solenoid valve body forms tapering project organization on the valve shaft of air inlet department for the air current that flows in can carry out the flow power along with tapering project organization and turn to. The valve shaft of the energy-saving electromagnetic valve body at the air outlet is provided with a groove structure, and a vortex air chamber is formed between the groove structure and the energy-saving electromagnetic valve body. The utility model discloses can effectively reach energy-conserving effect.
Description
Technical Field
The utility model relates to a solenoid valve technical field especially relates to an utilize solenoid valve that case switches as fluid import and export.
Background
The pneumatic solenoid valve switches an inlet and outlet air source by controlling the movement of the valve core, high-pressure air can enter different pipelines, then the spindle of the air cylinder is pushed by the air pressure of the pneumatic solenoid valve, and the linear mechanical motion of the valve core in the solenoid valve is controlled by switching on and off the electromagnet of the control solenoid valve.
Fig. 1 is a schematic view showing a valve shaft of a gas solenoid valve in the prior art, and it can be seen from the figure that the valve shaft has a symmetrical structure as a whole, and the structure of a gas inlet and a gas outlet is identical. Therefore, the valve shaft used in the pneumatic solenoid valve does not consider the flow force loss generated in the switching process of the pneumatic fluid in the solenoid valve body, that is, more pneumatic pressure sources are required to achieve the switching action of the solenoid valve in the aspect of energy saving.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an energy-saving electromagnetic valve is provided, can effectively reach energy-conserving effect.
The utility model provides a technical scheme that its technical problem adopted is: the energy-saving electromagnetic valve comprises a valve shaft, wherein a taper design structure is formed on the valve shaft at an air inlet of a valve body of the energy-saving electromagnetic valve, so that flowing air flow can be subjected to flow power steering along with the taper design structure.
The taper design is arranged at the inlet and/or outlet of the air inlet.
The cone angle range of the taper design structure is 110-135 degrees.
The taper angle of the taper design structure at the inlet and the outlet of the air inlet is 125 degrees.
The valve shaft of the energy-saving electromagnetic valve body at the air outlet is provided with a groove structure, and a vortex air chamber is formed between the groove structure and the energy-saving electromagnetic valve body.
The valve shaft of the energy-saving electromagnetic valve body at the air outlet is provided with a cone frustum structure, and a groove structure is formed between the cone frustum structure and the outlet wall of the air outlet.
The valve shaft of the energy-saving electromagnetic valve body at the air outlet is of a two-section structure, wherein the diameters of the two sections of structures are different, and the diameter of one section of the outlet wall close to the outlet is smaller than that of the other section of the outlet wall.
Advantageous effects
Since the technical scheme is used, compared with the prior art, the utility model, have following advantage and positive effect: the utility model discloses form tapering project organization on the valve shaft of air inlet department, realize the velocity of flow through the toper structure and turn to the compensation in order to carry out the air current flow power to this reaches energy-conserving effect. Additionally, the utility model discloses be provided with a groove structure on the valve shaft of gas outlet department, form the swirl air chamber between groove structure and the energy-conserving solenoid valve body, utilize this swirl air chamber can reduce the influence of air current flow resistance to reach energy-conserving purpose.
Drawings
FIG. 1 is a schematic view of a valve shaft of a prior art solenoid valve;
fig. 2 is a schematic structural view of a first embodiment of the present invention;
FIG. 3 is a schematic view of the flow direction of the air stream in the first embodiment of the present invention;
FIG. 4 is a prior art valve shaft flow graph;
fig. 5 is a schematic structural view of a second embodiment of the present invention;
FIG. 6 is a schematic illustration of the mean pressure of the axial active surface of a prior art valve shaft;
FIG. 7 is a schematic view of the axial acting surface of the valve shaft according to the second embodiment of the present invention;
fig. 8 is a schematic structural view of another groove structure according to a second embodiment of the present invention;
FIG. 9 is a graphical illustration of a lowest operating pressure measurement of a prior art valve shaft;
fig. 10 is a schematic view of a measurement result of a lowest operating pressure of the valve shaft according to an embodiment of the present invention;
fig. 11 is a schematic view of a measurement result of the lowest operating pressure of the valve shaft according to another embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model discloses a first embodiment relates to an energy-conserving solenoid valve, as shown in fig. 2, including valve shaft 1, energy-conserving solenoid valve body forms tapering project organization 2 on the valve shaft of air inlet A department for the air current that flows in can carry out the flow power along with tapering project organization and turn to.
As can be seen, in the present embodiment, the flow force compensation is realized by using the flow velocity steering method, as shown in fig. 3, in the present embodiment, on the basis of the air inlet of the existing valve shaft, the original 90-degree portion is subjected to angle guiding treatment, so that the inlet and the outlet of the air inlet form a taper design, and the taper design is used to guide the air flow, so that the inflow angle α is formedsAnd outflow angle βsAre all less than 90 degrees to achieve flow force compensation.
It is worth mentioning that, in the embodiment, the inlet and the outlet of the air inlet are both provided with taper designs, but in practical application, the taper designs can be only arranged at the inlet of the air inlet, and also can be only arranged at the outlet of the air inlet, and the settings can effectively compensate the convection power.
In order to verify the effectiveness of the embodiment, a CFD numerical simulation method is adopted to analyze the flow force, in order to simplify the complexity of the numerical method and avoid losing the accuracy, a two-dimensional rectangular geometric model is adopted, only the area of the upper right half part of the central line of the valve shaft is considered, and then the opening degrees of 5 holes of the simulated valve shaft are respectively set to be 0.65mm, 0.5mm, 0.35mm, 0.2mm and 0.1 mm.
The prior art valve shafts were analyzed together as comparative examples in the verification. As shown in fig. 4, after the CFD is used to simulate the valve shaft in the prior art, a valve shaft flow curve graph can be obtained, and it can be seen from the graph that the flow resistance is the maximum when the opening of the orifice is about to open, so the flow resistance shows a gradual decrease trend during the opening process of the orifice, and the flow resistance is 1.86N after the average value is calculated, which indicates that the flow force compensation is needed.
In the simulation of the present embodiment, the initial taper of the left taper design structure is set to 110 degrees and gradually increased to 135 degrees every 5 degrees, and in the same manner, the right taper design structure is matched in the same manner, that is, the initial taper of the right taper design structure is set to 110 degrees and gradually increased to 135 degrees every 5 degrees. The simulation results are recorded in table 1, which has a total of 36 sets of data. It can be found from table 1 that the effect is best when the left side taper design structure and the right side taper design structure are both at 125 degrees, and the resistance value at this time is 1.485N. Compared with the prior art that the 1.86N group leaves work, the energy-saving rate is about 20.16%.
TABLE 1
The second embodiment of the present invention also relates to an energy saving solenoid valve, which is different from the first embodiment in that, as shown in fig. 5, in this embodiment, the energy saving solenoid valve body is provided with a groove structure 3 on the valve shaft 1 of the gas outlet B, a vortex air chamber is formed between the groove structure 3 and the energy saving solenoid valve body. When the airflow passes through the orifice through the valve chamber, the airflow is divided into two parts by the vortex air chamber formed by the groove structure on the valve shaft, wherein one part directly flows out of the orifice without the flow force compensation effect, and the other part flows into the vortex air chamber to generate the vortex-like effect in the vortex air chamber, so that the flow resistance is reduced, and the flow force compensation is realized.
The flow force compensation effect of the present embodiment can be calculated from the axial average pressure acting on the valve shaft. FIG. 6 is a schematic diagram of the average pressure of the axial active surface of a prior art valve shaft, from which it can be seen that the differential pressure of the valve shaft is Δ P1＝PA-PB. Since the valve shaft of the present embodiment has the swirl chamber, as shown in fig. 7, the pressure distribution of four planes must be considered, and the pressure difference of the valve shaft at this time is Δ P2＝Pc-Pd+Pe-Pf. By passing
The percent flow force reduction can be calculated.
To verify the effectiveness of this embodiment, the flow force was analyzed using a CFD numerical simulation method. Through a method similar to that verified in the first embodiment, the groove structure in the present embodiment is realized in two ways, one is to provide a truncated cone structure 4 (see fig. 5) on the valve shaft of the air outlet B, and the other is to design the valve shaft of the air outlet B into a two-section structure (see fig. 8), and the diameters of the two-section structure are different, and the diameter of one section of the outlet wall 5 near the outlet is smaller than that of the other section. The main difference between the two methods is that the first method has a significant vortex chamber, i.e. the gas can have a better compensation effect when flowing into the chamber. The CFD numerical simulation shows that both of the above-mentioned ways can reduce the flow resistance, wherein the first way can reduce the flow resistance to 0.965N, and the second way can reduce the flow resistance to 1.02N.
The percentage of flow resistance reduction calculated for the first and second embodiments after calculation of the pressure difference measurement results for the prior art valve shafts, the first and second embodiments are shown in table 2.
TABLE 2
| Valve shaft type | CFD analog pressure difference (bar) | Percentage of energy saving |
| Prior Art | 0.61 | |
| First embodiment | 0.505 | 17.21％ |
| Second embodiment | 0.42 | 34.04％ |
When the energy-saving proportion of the electromagnetic valve is verified, a laboratory table based on an LABVIEW graphical control program is adopted, the proportional pressure valve is used for precisely regulating and controlling the input pressure, the SMC pressure switch is used for observing the pressure value, the pressure sensor is used for connecting a signal to a LabVIEW graphical control program to measure a more precise operation pressure value, and the device is used for measuring the proportion reduced by the lowest input pressure value for driving the displacement of the valve shaft, namely the energy-saving proportion of the valve shaft of the energy-saving electromagnetic valve.
FIG. 9 shows a measurement of the lowest operating pressure of a prior art valve spindle, which is 0.55 bar. Fig. 10 shows the measurement result of the lowest operating pressure of the valve spindle of the first embodiment, which is 0.45bar, and thus the percentage of energy saving is 18.18%. Fig. 11 shows the measurement result of the lowest operating pressure of the valve shaft of the second embodiment, which is 0.37bar, and thus the percentage of energy saving is 33.73%.
It is difficult to discover, the utility model discloses a valve shaft can effectively save energy about 17% ~ 34% energy-conserving proportion when using in each type atmospheric pressure solenoid valve body is inside, and its quantity that reduces the supply source can drive the solenoid valve and switch.
Claims (7)
1. The energy-saving electromagnetic valve comprises a valve shaft and is characterized in that a taper design structure is formed on the valve shaft at an air inlet of a valve body of the energy-saving electromagnetic valve, so that flowing air flow can be subjected to flow power steering along with the taper design structure.
2. The energy saving solenoid valve according to claim 1, wherein the taper design is arranged at the inlet and/or outlet of the intake port.
3. The energy-saving electromagnetic valve according to claim 1, wherein the taper angle range of the taper design structure is 110-135 degrees.
4. The energy saving solenoid valve of claim 1 wherein the taper design of the inlet and outlet ports of the inlet port has a taper angle of 125 degrees.
5. The energy-saving electromagnetic valve according to claim 1, wherein the energy-saving electromagnetic valve body is provided with a groove structure on the valve shaft at the air outlet, and a vortex air chamber is formed between the groove structure and the energy-saving electromagnetic valve body.
6. The energy-saving electromagnetic valve according to claim 5, wherein the valve body of the energy-saving electromagnetic valve is provided with a truncated cone structure on the valve shaft at the air outlet, and a groove structure is formed between the truncated cone structure and the outlet wall of the air outlet.
7. The energy-saving electromagnetic valve according to claim 5, wherein the valve shaft of the energy-saving electromagnetic valve body at the air outlet adopts a two-section structure, wherein the two-section structure has different diameters, and one section of the outlet wall close to the outlet has a smaller diameter than the other section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924697.XU CN210637527U (en) | 2019-06-19 | 2019-06-19 | Energy-saving electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920924697.XU CN210637527U (en) | 2019-06-19 | 2019-06-19 | Energy-saving electromagnetic valve |
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| Publication Number | Publication Date |
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| CN210637527U true CN210637527U (en) | 2020-05-29 |
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| CN201920924697.XU Active CN210637527U (en) | 2019-06-19 | 2019-06-19 | Energy-saving electromagnetic valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220002A (en) * | 2019-06-19 | 2019-09-10 | 宁波兴茂电子科技有限公司 | A kind of energy-saving electromagnetic valve |
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2019
- 2019-06-19 CN CN201920924697.XU patent/CN210637527U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220002A (en) * | 2019-06-19 | 2019-09-10 | 宁波兴茂电子科技有限公司 | A kind of energy-saving electromagnetic valve |
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