TWI613384B - Energy-saving precision pressure regulating valve improved structure - Google Patents

Abstract

The utility model relates to an improved structure of an energy-saving precision pressure regulating valve, which comprises a main body, and a main diaphragm and a balance diaphragm are arranged inside, the main diaphragm is mainly linked by an overflow pipe, and the balance diaphragm is interlocked by a pressure regulating straight rod When the pneumatic fluid enters the body, through the mutually connected passages, the feedback passages, and the pressure regulating passages, the feedback passages and the steel balls inside the feedback passage are matched to control the pneumatic fluid to circulate in one direction, and Cooperating with the straight rod encapsulation on the pressure regulating straight rod and the diaphragm encapsulation on the main diaphragm, the flow of the whole pneumatic fluid is more quickly described, and it can be rapidly increased with the overflow tube and the overflow hole. Pressure, decompression and the purpose of providing high-precision output pressure.

Description

Energy-saving precision pressure regulating valve improved structure

This creation department has an improved structure of an energy-saving precision pressure regulating valve, which mainly uses a feedback channel to circulate in one direction, and adjusts the flow rate of the pneumatic fluid, so that the feedback channel is balanced with the pressure regulating channel, and is supplemented by The overflow pipe cooperates with the overflow hole to achieve rapid pressurization, decompression and high precision output pressure.

In general, the pressure regulating valve consumes a lot of pneumatic fluid during the pressure regulation process. In order to meet the needs of more sophisticated automated processing in the future, each manufacturer is focusing on the development of technologies that can save energy and energy during the process. In the "Precision Pressure Regulating Valve" of the new patent No. M513296, the creator uses a passage inside the structure to generate equal pressure and can feedback each other, thereby enabling energy to be greatly reduced and eliminated. When it is extra fluid, it can be quieter;

Subsequent creators have improved the aforementioned patents, such as the "energy-saving precision pressure regulating valve" of the Republic of China new patent M523033, which uses a balanced diaphragm and a main diaphragm at both ends of the pressure regulating straight rod to penetrate the pressure through the pressure. Corresponding to the channel, the pressure regulating straight rod can be pressed against the balance diaphragm, so that the internal pressure can be formed without overflow, and the adjustment can be continued, and the high-precision output pressure can be maintained.

Therefore, it is known from the foregoing structure that after practical application and research, there are still disadvantages that must be improved.

This creation is an improved structure of energy-saving precision pressure regulating valve. Its main technical purpose is to use the multiple channels provided inside the body to cooperate with the steel ball through the orifice of the feedback channel to make the pressure fluid adjust the flow rate. The internal passage of the body can be balanced, and the overflow pipe and the overflow hole are matched, so that the creation can achieve rapid decompression.

The improved structure of the energy-saving precision pressure regulating valve of the present invention is composed of a pressure regulating air seat, a middle valve seat and a base, and the main diaphragm and the balance diaphragm are arranged in the body, and the air pressure is transmitted through the passage and the feedback. The channel and the pressure regulating channel can balance the air pressure fluid in the body by using the steel ball and the feedback channel orifice provided in the feedback channel, so that the balance diaphragm corresponds to the pressure regulating straight rod and the main diaphragm corresponding overflow. The tube performs a vertical displacement action;

Through the linkage between the above structures, in addition to the non-overflow and energy saving, the pressure regulation can achieve rapid pressurization, decompression and high precision output pressure, and can be applied to different capacity adjustments. The pressure valve also maintains its precise pressure regulation function.

In general, according to the present creation, the best feasible embodiment, together with the detailed description of Figures 1 to 7, will increase the understanding of the creation;

The present invention is an improved structure of an energy-saving precision pressure regulating valve having a body (10) provided with an input end (11) and an output end (12) for a gas pressure fluid (P) to enter and exit, the pneumatic fluid (P) includes equilibrium pressure, primary side pressure (P1), secondary side pressure (P2), and the body (10) is mainly composed of a pressure regulating air seat (20), a middle valve seat (30), and a base. (40) is composed of a top-to-bottom connection, and a balance diaphragm (31) is disposed between the lower side of the pressure regulating air seat (20) and the middle valve seat (30), and a lower portion is disposed under the base and the middle valve seat (30). a main film (34), the main film (34) is coated with a film encapsulation (341);

The middle valve seat (30) is further provided with a passage (13) capable of guiding the pneumatic fluid (P) and communicating with each other, a pressure regulating passage (14) and a feedback passage (15), and a pressure regulating straight a rod (33), the pressure regulating straight rod (33) is covered with a straight rod rubber (331), wherein the passage (13) is from the base (40) to the input end (11) to the pressure regulating straight rod (33) The position is set, and the passage (13) is further provided with a passage orifice (131). When the pneumatic fluid (P) enters the input end (11), a primary side pressure (P1) is formed through the passage (13) to The pressure regulating straight rod (33) is matched with the passage orifice (131) to reduce the excess primary side pressure (P1), because the pressure regulating air seat (20) is adjusted with the knob (22) to raise the pressure, thereby driving the main spring (23) Pushing down the balance diaphragm (31) and the pressure regulating straight rod (33), the pressure regulating straight rod (33) allows the primary side pressure (P1) to flow to the main diaphragm (34), thereby forming a balance pressure (PT);

The feedback channel (15) is disposed in the middle valve seat (30) and adjacent to the side of the channel (13). When the balance pressure (PT) is guided to the main diaphragm (34), the main film is pushed against the main film. The piece (34) is interlocked with the overflow pipe (41) to open the valve port (42) provided in the overflow pipe (41), and the primary side pressure stored at the input end (11) is circulated to The valve port (42) to the output end (12), at this time forming a secondary side pressure (P2);

The pressure regulating passage (14) is connected to the position of the balance diaphragm (31) by the output end (12) of the base (40), and the secondary side pressure (P2) has a partial pressure via the pressure regulating passage. (14) moving to the balance diaphragm (31), when the secondary side pressure (P2) < equilibrium pressure (PT), the partial equilibrium pressure (PT) in the aforementioned main diaphragm (34) passes through the feedback passage. The orifice (151) and the feedback passage (15) push the steel ball (16) and enter the secondary side pressure (P2) to balance the secondary side pressure (P2) of the pressure regulating passage (14);

Referring again to Figure 6, the feedback channel (15) is designed as a circular hole at the secondary side pressure (P2) end, and a tapered hole at the equilibrium pressure (PT) end below the steel ball (16). Design, when the secondary side pressure (P2)>balance pressure (PT), the secondary side pressure (P2) pushes the steel ball (16) against the conical hole, only a small part of the secondary side pressure (P2) flows to the equilibrium pressure (PT), the central hole of the piston (32) is discharged to the overflow hole (21) of the pressure regulating gas seat (20), and then discharged to the outside of the body (10), most of the secondary side pressure (P2 By pushing the main diaphragm (34), the excess pressure is directly passed through the overflow pipe (41), and the body (10) is discharged from the body (10), and the decompression inside the body (10) can be quickly achieved, so the balance is balanced. The pressure (PT) can be kept greater than the secondary side pressure (P2), so that the pressure of the body (10) is quickly regulated; when the annular area between the steel ball (16) and the feedback channel (15) is minimized, the pneumatic fluid can be reduced. (P) The flow rate of circulation is minimized. When the pressure side of the secondary side of the feedback channel (15) is downward, it can ensure that the secondary side pressure (P2) can still push the steel ball (16) against the balance pressure (PT) end. Hole, achieve the same effect Thus overall, due to the fluid pressure (P) between the various flow channels can be balanced, so that the body (10) of the pressure regulator to maintain constant delivery pressure with high accuracy;

When the set pressure is completed by the body (10), the pressure or pressure reduction of the balance pressure (PT) affects the axial movement of the main diaphragm (34), which causes the secondary side pressure (P2) to have a rapid speed in a very short time. The dynamic response of the boost, as described in paragraph 0014 above: the barometric fluid (P) flows between the channels to achieve equilibrium, and this brief boost dynamic response is quickly regulated; at the output (12) each When the output pressure is turned on and off, the secondary side pressure (P2) also produces a dynamic response of rapid boosting in a very short period of time. This condition is similar to the case of setting the pressure, but is limited by the reaction of the parts and parts after assembly. It can't be the same every time, so the secondary side pressure (P2) and the set pressure will remain within a small error range. This is the repeated pressure accuracy of the body (10), which has been repeatedly implemented and tested by the creator. The error range is ±0.5% of the maximum set pressure, and it can be applied to the large-capacity pressure regulating valve to maintain the same predetermined efficiency.

When the body (10) performs the downward pressure, turn the knob (22) to reduce the compression of the main spring (23), so that the balance of the main spring (23) is reduced, and the balance diaphragm (31) is pressed by the secondary side ( P2) is pushed with the balance pressure (PT) to open the central hole of the piston (32), and the balance pressure (PT) is discharged from the central hole to the overflow hole (21) of the pressure regulating gas seat (20), and then discharged to The body (10) is externally and is quickly exhausted and depressurized; at this time, the pressure regulating straight rod (33) is pushed by the bottom spring to close the valve port, and the passage (13) is also closed, and the main diaphragm (34) is subjected to the equilibrium pressure ( PT) reduce the effect and return to the original position, at this time the valve port (41) is closed, as shown in Figure 5, when the secondary side pressure (P2) * main diaphragm (34) area > equilibrium pressure ( PT)* Under the condition of the area of the main diaphragm (34), the secondary side pressure (P2) can push open the main diaphragm (34) and directly discharge the body (10) from the base (40) directly through the overflow tube (41). And as in paragraph 0014 above, a very small portion of the secondary side pressure (P2) will enter the equilibrium pressure (PT) through the pressure regulating channel (14), the feedback channel (15) and the steel ball (16), through the balancing membrane. The central hole of the piston (32) in the middle of the piece (31) flows to the center The overflow hole (21) of the compressor seat (20) is discharged to the outside of the body (10), whereby the body (10) can be exhausted from two places, and the equilibrium pressure (PT) and the secondary side pressure are reduced at the same time. (P2) makes it more efficient and can be applied to large-capacity regulators to maintain the same intended function.

Please refer to the figure shown in Figure 8, which is a schematic diagram of the pressure regulating straight rod (33). It can be seen that the straight rod rubber (331) covered by the outer layer of the pressure regulating straight rod (33) and the straight rod of the left side (a) The rubber (331) is thicker, and the right side of the straight rod rubber (331) is thinner. The thickness is mainly matched with the capacity of the pressure regulating valve and the accuracy of the output pressure. The conditions are increased or decreased during design. It mainly affects the amount of extrusion of the piston (32) and the straight rod encapsulation (331) in the middle of the balance diaphragm (31). The thinner the thickness, the lower the extrusion amount, and the easier it is to open the central hole of the piston (10). The part accelerates the exhaust pressure of the balance pressure (PT) and reduces the hysteresis when the equilibrium pressure (PT) decreases. When the volume occupied by the balance pressure (PT) is minimized, the hysteresis is also minimized, making the balance The pressure (PT) decompression and boosting are quickly achieved, allowing the body (10) pressure regulation to maintain a certain high-precision output pressure, and the application of the large-capacity pressure regulating valve can also maintain the same predetermined effect.

Referring again to Fig. 9, the thickness of the diaphragm encapsulation (341) provided on the surface of the main diaphragm (34) affects the amount of extrusion of the overflow tube (41). The glue (341) has a thinner thickness on the left side (c) and a thicker one on the right side (d). However, the thinner the thickness, the lower the extrusion amount, which accelerates the exhaust of the secondary side pressure (P2) and reduces The hysteresis when the secondary side pressure (P2) is lowered allows the body (10) pressure regulation to maintain a certain high-precision output pressure, and can be applied to a large-capacity pressure regulating valve to maintain the same predetermined function; thus, Knowing the speed of the overall structure in the pneumatic fluid (P) exhaust, the straight rubber (331) and the diaphragm encapsulation (341) have a considerable degree of influence, and the author has repeatedly performed and tested many times. The diaphragm encapsulation (341), the optimum thickness in the creation structure is between 0.1 and 0.15 mm, and the straight rod encapsulation (331), the thickness of which is between 0.1 and 0.15 mm, can also Actual production requirements increase or decrease the straight-rod rubber (331) parts, and are not limited to this; while the surfaces of the piston (32) and the overflow pipe (41) are not required to be specially polished during production. Sliding surface, the exhaust gas is slightly matte surface sensitivity than good surface smoothness, convenient manufacturing, can also stanch, and helps effect (P) to enhance the flow of pressure fluid.

Referring again to FIG. 10, it is another embodiment of the present invention, and its structure and operation principle are similar to those of the foregoing embodiment, except that the main diaphragm (34) is replaced with a design with a central perforation. And the overflow pipe (41) is perforated near the input end (11), and flows the secondary side pressure (P2) to the bottom of the overflow pipe (41), and then passes through the main film when the exhaust gas is depressurized. The central hole of the piece (34) enters the equilibrium pressure (PT), and is directly discharged with the balance pressure (PT) to the overflow hole (21). It is suitable for use in a pressure regulating valve with a small flow rate, and the exhaust time is not too long. And can effectively reduce the noise of the exhaust.

In summary, the improved structure of the energy-saving precision pressure regulating valve of the present invention is provided with a feedback passage (15) through the internal adjustment passage (14) and a passage (13) to balance the three, and the pressure regulation is strong. In addition to the non-overflow and energy-saving effects, it can also achieve rapid pressurization, decompression and high-precision output pressure. It can also be used for different capacity regulators to maintain its precise pressure regulation function.

(10) ‧‧‧ Ontology

(11)‧‧‧ Input

(12)‧‧‧ Output

(13) ‧‧‧ channels

(131)‧‧‧Channel orifice

(14) ‧‧‧pressure channel

(15) ‧‧‧Return channel

(16)‧‧‧ steel balls

(20) ‧‧‧Regulating air block

(21)‧‧‧Overflow hole

(22)‧‧‧ knob

(23)‧‧‧Main spring

(30) ‧‧‧中座

(31)‧‧‧ Balanced diaphragm

(32) ‧‧‧Pistons

(33) ‧‧‧pressure straightening

(331)‧‧‧ Straight rubber

(34)‧‧‧Main diaphragm

(341) ‧‧‧Veneer encapsulation

(40)‧‧‧Base

(41) ‧‧‧Overflow tube

(42)‧‧‧ Valve port

(P) ‧ ‧ pneumatic fluid

(PT) ‧‧ ‧balanced pressure

(P1) ‧ ‧ primary side pressure

(P2) ‧ ‧ secondary side pressure

[Fig. 1] is a schematic cross-sectional view showing the structure of the closed exhaust gas of the preferred embodiment of the present invention. Fig. 2 is a partially enlarged schematic view showing the structure of Fig. 1 of the preferred embodiment of the present invention. Fig. 3 is a partially enlarged schematic view showing a structural section of Fig. 1 of the preferred embodiment of the present invention. FIG. 4 is a schematic view of a preferred embodiment of the present invention. FIG. 5 is a schematic cross-sectional structural view showing the quick exhaust of the preferred embodiment of the present invention. Fig. 6 is a partially enlarged schematic view showing (A1) in the cross section of the structure of Fig. 5 of the preferred embodiment of the present invention. Fig. 7 is a partially enlarged schematic view showing (B1) in the cross section of the structure of Fig. 5 of the preferred embodiment of the present invention. [Fig. 8] is a schematic view of the straight rod encapsulation of the pressure regulating straight rod of the preferred embodiment of the present invention. Fig. 9 is a schematic view showing the film encapsulation of the main film of the preferred embodiment of the present invention. Fig. 10 is a schematic cross-sectional view showing another embodiment of the present invention.

(10) ‧‧‧ Ontology

(11)‧‧‧ Input

(12)‧‧‧ Output

(13) ‧‧‧ channels

(131)‧‧‧Channel orifice

(14) ‧‧‧pressure channel

(15) ‧‧‧Return channel

(151)‧‧‧Responsible channel orifice

(16)‧‧‧ steel balls

(20) ‧‧‧Regulating air block

(21)‧‧‧Overflow hole

(22)‧‧‧ knob

(23)‧‧‧Main spring

(30) ‧‧‧中座

(31)‧‧‧ Balanced diaphragm

(32) ‧‧‧Pistons

(33) ‧‧‧pressure straightening

(331)‧‧‧ Straight rubber

(34)‧‧‧Main diaphragm

(341) ‧‧‧Veneer encapsulation

(40)‧‧‧Base

(41) ‧‧‧Overflow tube

(42)‧‧‧ Valve port

(P) ‧ ‧ pneumatic fluid

(PT) ‧‧ ‧balanced pressure

(P1) ‧ ‧ primary side pressure

(P2) ‧ ‧ secondary side pressure

Claims (5)

An improved structure of an energy-saving precision pressure regulating valve comprises: a body having an input end and an output end for a gas pressure to enter and exit, and the body is mainly composed of a pressure regulating air seat, a middle valve seat, and a body a base is connected, a balance diaphragm is disposed between the pressure regulating air seat and the middle valve seat, and the pressure regulating air seat is provided with an overflow hole, and a main diaphragm is disposed between the base and the middle valve seat, The main diaphragm is covered with a diaphragm encapsulation, and the middle valve seat is provided with a channel, a pressure regulating channel and a feedback channel, which can guide a pneumatic fluid and communicate with each other, and a pressure regulating straight rod. The feedback channel is provided with a feedback channel orifice and a steel ball, and the pressure regulating straight rod is covered with a continuous rod encapsulation, and the base is provided with an overflow tube, a valve port, and a passage through the passage. a passage orifice; wherein the pneumatic fluid flows through the passage to the feedback passage, and the flow rate of the pneumatic fluid is directly adjusted through the feedback passage orifice and the steel ball to make the feedback passage Balanced with the pneumatic fluid between the pressure regulating channel, allowing the channel The feedback channel and the pressure regulating channel are connected to each other, and a piston is disposed in the center of the balance diaphragm, which can be used to press the pressure regulating straight rod with a surface which is not smooth, so that the pressure regulating straight rod is exhausted more smoothly. And the diaphragm encapsulation and the straight rod encapsulation are matched with an appropriate thickness, so that the overflow tube and the overflow hole are selected for rapid pressurization, decompression, and high precision output pressure, and the overflow The top end of the flow tube abuts against the surface of the main diaphragm to have a matte surface, and the main diaphragm can make the exhaust smooth. According to the improved structure of the energy-saving precision pressure regulating valve according to claim 1, wherein the diaphragm is covered with a thickness of 0.1 to 0.15 mm, and the thinner the thickness, the pressure fluid can be balanced. The faster the diaphragm is exhausted. According to the improved structure of the energy-saving precision pressure regulating valve according to the scope of claim 1, wherein the straight rubber is adjusted to have a thickness of between 0.1 and 0.15 mm, and the thinner the thickness, the pneumatic fluid can be used for the overflow. The faster the exhaust of the flow tube. According to the improved structure of the energy-saving precision pressure regulating valve according to the first aspect of the patent application, the feedback passage is matched with the steel ball with a round hole at the top and a tapered hole at the lower side, when the secondary side pressure> the equilibrium pressure The secondary side pressure pushes the steel ball against the conical hole, and a very small portion of the secondary side pressure flows into the equilibrium pressure, and the piston is discharged through the piston, and most of the secondary side pressure pushes the main body The diaphragm is discharged through the overflow pipe to the base, so that the purpose of decompression inside the body can be quickly achieved. According to the improved structure of the energy-saving precision pressure regulating valve described in claim 4, when the steel ball is matched with the feedback passage, an annular circle is formed to limit the flow rate of the pneumatic fluid to ensure the vertical displacement of the steel ball. Adjustment.