Novel electrical converter

Abstract

The utility model provides a novel electrical converter. The novel electrical converter comprises an air filter regulator, a first electromagnetic valve, a second electromagnetic valve, a hand side valve and a second electromagnetic valve, when air is supplied to the actuator and the solenoid valve at the same time in a state in which the valve disc rotates, and a rotation signal is applied from the limit switch, the timer cuts off the air according to time setting and then supplies the air again. Therefore, the electromagnetic valve has the effect of solving the problems of load and sludge entrapment caused by the fact that the valve disc is pushed into the valve sealing piece due to the air which is rapidly opened at the closing position of the electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to the technical field of electric conversion devices, in particular to a novel electric converter. Background Art

[0002] The electrical converter converts 0-10mA DC signal into 20-100kpa pneumatic signal to enable the electric unit instrument to work with the pneumatic unit instrument.

[0003] Typically, a valve seat is assembled at the internal gas channel of the valve body on the electric converter, and a disc cover is threadedly assembled and fixed on its outer side. The disc cover is driven to rotate on the inner side of the valve seat through a rotating shaft. The upper part of the rotating shaft is connected to an actuator. With the operation of the actuator, the outer surface of the disc cover is separated from or tightly attached to the inner wall of the valve seat, thereby opening or closing the gas channel.

[0004] However, in the above-mentioned prior art, during the process of closing or opening the valve body, the rapid release of air when the solenoid valve is closed may cause the valve disc to push into the valve seal, resulting in load and sludge being caught. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the utility model is to provide a new type of electrical converter, which has solved the problems in the prior art of load and sludge being clamped caused by the valve disc pushing into the valve seal due to the rapid release of air when the solenoid valve is closed.

[0006] To solve the above problems, the measures taken in this plan are:

[0007] The present application provides a novel electrical converter, the electrical converter comprising:

[0008] A first solenoid valve;

[0009] A second solenoid valve;

[0010] Actuators;

[0011] an air filter regulator connected to the compressor to reduce air pressure while preventing overpressure to supply air set at a preset pressure to the first solenoid valve;

[0012] a hand-side valve, which is arranged between the second solenoid valve and the shuttle valve so as to be able to confirm whether the operation of the electric converter is normal;

[0013] Regulator;

[0014] a shuttle valve; the first solenoid valve receives air supplied from the air filter regulator and selectively distributes it to the actuator and the second solenoid valve, the second solenoid valve receives air supplied from the first solenoid valve and supplies air decompressed by the regulator to the shuttle valve;

[0015] A timer, electrically connected to the first solenoid valve and a limit switch;

[0016] A first speed control valve is connected to the limit switch to adjust the amount of air applied from the first solenoid valve.

[0017] Furthermore, the first solenoid valve supplies air toward the open port of the actuator when no power is applied, and supplies air toward the closed port of the actuator and toward the second solenoid valve through a branch pipe when power is applied.

[0018] Further, when the first solenoid valve detects the rotation of the valve disc and the closing contact signal of the limit switch by supplying air to one of the pipelines in the branch pipeline, the timer counts the set time.

[0019] Furthermore, after counting the set time, the timer excites the second electromagnetic valve to open it, so that the trapped air pressure is supplied to the valve seal made inside the electric converter through the shuttle valve.

[0020] Furthermore, when the timer applies a switching signal to the limit switch, the second solenoid valve is opened to supply air according to a set time, or when power is applied to supply air in the direction of the closing port of the actuator after a set time, power is applied to the second solenoid valve to drive it.

[0021] The beneficial effect of the utility model is that when the valve disc is rotating, after air is supplied to the actuator and the solenoid valve at the same time, if a rotation signal is applied from the limit switch, the timer disconnects the air according to the time setting and then supplies it again, thereby improving the problem of load and sludge being clamped due to the valve disc pushing the valve seal due to the rapid release of air in the closed position of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of a novel electrical converter in an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the side view structure of the new electrical converter in the embodiment of the present application.

[0024] Figure 3This is a schematic diagram of a closed grounding flow path pipeline system of a limit switch in a novel electrical converter in an embodiment of the present application.

[0025] Figure 4 Schematic diagram of the working principle of the novel electrical converter in the embodiment of the present application.

[0026] Figure 5 This is a schematic diagram of a closed grounding flow path pipeline system of a limit switch in a novel electrical converter in another embodiment of the present application.

[0027] Figure 6 This is a schematic diagram of the working principle of a novel electrical converter in another embodiment of the present application.

[0028] Figure 7 This is a schematic diagram of a closed and grounded flow path pipeline system of a limit switch in a novel electrical converter in yet another embodiment of the present application.

[0029] Figure 8 This is a schematic diagram of the working principle of a novel electrical converter in yet another embodiment of the present application. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1 and Figure 2 As described above, the new electrical converter 110 in this embodiment includes an air filter regulator 10, a first solenoid valve 20a, a second solenoid valve 20b, a hand-side valve 40 and a second solenoid valve 60. The air filter regulator 10 is connected to a compressor to reduce air pressure while preventing overpressure, and supplies air with a specified pressure to the first solenoid valve 20a. The first solenoid valve 20a receives air supplied from the air filter regulator 10 and selectively distributes it to the actuator 100 and the second solenoid valve 20b. The second solenoid valve 20b receives air from the first solenoid valve 20a and supplies reduced-pressure air to the regulator 50. The hand-side valve 40 is arranged between the second solenoid valve 20b and the shuttle valve 60 to confirm whether the new electrical converter 110 is working normally.

[0032] The hand side valve 40 is provided between the second solenoid valve 20b and the shuttle valve 60. The hand side valve 40 is provided between the second solenoid valve 20b and the shuttle valve 60. The shuttle valve 60 supplies the air supplied from the solenoid valve 20b to the actuator 100 to the new electric converter 110, the timer 70 electrically connected to the first solenoid valve 20a and the limit switch 90, the first speed control valve 80 connected to the limit switch 90 to adjust the amount of air supplied from the first solenoid valve 20a to the actuator 100 and to overcome the difference in a predetermined time (0.5 seconds) after the valve disc 112 is closed, the limit switch 90 that applies a closing signal to the actuator when the air pressure supplied from one of the branch pipes of the first solenoid valve 20a acts in the direction of closing the actuator 100, and the valve disc 112 is opened or closed by the new electric converter 110.

[0033] Reference Figures 1 to 5 , the first solenoid valve 20a is connected to the air filter regulator 10 and is arranged on a fixing frame 21 vertically arranged in the box body 101. And, the second solenoid valve 20b is connected to the first solenoid valve 20a and is located on one side of the first solenoid valve 20a and is installed on the fixing frame 21, and the hand side valve 40 is installed between the second solenoid valve 20b and the shuttle valve 60 so as to confirm whether the operation of the new electric converter 110 is normally performed in the state where the hand side valve 40 is closed, and the shuttle valve 60 is connected to the regulator 50 and connected to the valve body 111 so as to be able to supply air with a predetermined pressure, and the timer 70 is installed on the inner side of the timer housing 71 so as to be electrically connected to the first solenoid valve 20a and the limit switch 90.

[0034] If the switching signal of the limit switch 90 is applied, the timer 70 opens the second solenoid valve 20b according to the set time to supply air, or if the power is applied to supply air to the closing port direction of the actuator 100, the power is applied together, and after the set time, the power is applied to the second solenoid valve 20b to drive, and the first speed control valve 80 is provided between the first solenoid valve 20a and the actuator 100, and adjusts the amount of air applied from the first solenoid valve 20a to supply to the actuator 100. The first speed control valve 80 is connected to the limit switch 90 to overcome the time difference, and a predetermined time (0.1 seconds to 2 seconds) is set after the valve disc 112 is closed, so that when the valve disc 112 is closed, by setting the time for pressurization after the valve disc 112 is closed, when the valve disc 112 is closed, the friction applied to the valve seal due to the fluid speed and fluid collision that occur suddenly in the partition between the valve disc 112 and the valve seal can be minimized. The limit switch 90 is disposed on the upper part of the housing 101 through a bracket 91 and connected to the actuator 100. The actuator 100 is formed inside the housing 101 disposed on the upper part of the valve body 111 and is used to control the rotation of the valve disc 112 connected to the shaft.

[0035] The new electrical converter 110 includes a valve body 111 and a valve disc 112. The valve body 111 is disposed between pipelines and has a flow path formed therein. The outside of the valve body 111 is provided with a sealing cover (not shown) assembled with wrench bolts. The valve disc 112 is rotatably disposed inside the valve body 91 to open and close the flow path. In addition, an air supply hole 113 is formed at the lower portion of the valve body 111. The air supply hole 113 is connected to a blower (not shown) to supply air or exhaust air from the valve body 111. The new electrical converter in this embodiment is not limited to a structure for performing control when the limit switch is not grounded, but may be configured to perform control when the limit switch is grounded. The limit switch 80 is Figure 3 It is composed of two switching structures to control. Figure 4 In the embodiment, the switching structure of the limit switch 90 can be composed of three components to achieve control.

[0036] like Figure 5 and Figure 6 As shown, the switching structure of the limit switch 90 is further added, which is dedicated to the closing point. In order to avoid the collision of the power supply, only the closing signal is received, so that when the on-site operator is wiring, a short circuit or the like can be dealt with. The new electric converter in the embodiment constructed as described above supplies air directly supplied from the compressor at a pressure of 5.5-6.5 bar. In addition, in order to prevent overpressure or abnormal pressure from being supplied, the air filter regulator 10 resets the pressure of the air supplied to 5.5-6.5 bar to 4.5-5 bar, so that even if the supply pressure from the compressor is not constant, the air filter regulator 10 stably supplies air to the first solenoid valve 20a. The actuator 100 installed in the above-mentioned new electric converter 110 is a double-acting type. If air is supplied to the air port in the opening direction, the linear motion is converted into a rotary motion, and the valve disc 112 is opened. If air is supplied to the air port in the closing direction, the linear motion is converted into a rotary motion, and the valve disc 112 is closed.

[0037] When power is applied to the first solenoid valve 20a, air is supplied to the closing port direction of the actuator 100 through the branch pipe, and air is supplied to the second solenoid valve 20b of the three-way two-position type. The air pressure supplied from one of the pipelines in the branch pipe of the first solenoid valve 20a is supplied in a state where the air volume is adjusted by the first speed control valve 80, thereby acting in the closing direction of the actuator 100, so that the valve disc 112 of the new electric converter 110 rotates. At the same time, the limit switch 90 applies a closing signal to the actuator 100, thereby realizing the closing action of the new electric converter 110. In the case of another pipeline in the branch pipe of the first solenoid valve 20a, the second solenoid valve 20b maintains a cut-off state in a state where the pressurized pressure is limited in the fault-closed state. At this time, when the first solenoid valve 20a detects the rotation of the valve disc 112 and the closing contact signal of the limit switch 90 by supplying air to one of the pipelines in the branch pipe, the time preset by the timer is counted. For example, when the timer is set to 1 second, the second solenoid valve 20b is stimulated to open through the pressurized rotation of the actuator 100, the rotation of the valve disk 112 of the new electrical converter 110 as a passive body, and the counting of the closing end time of the limit switch 90, and the air is supplied to the inside of the new electrical converter 110 through the shuttle valve 60 through the valve seal, so that the valve disk 112 of the new electrical converter 110 rotates 100 degrees and closes. At this time, the power supply to the first solenoid valve 20a is cut off. When the contact point is cut off, at the open port of the first solenoid valve 20a, the air is supplied in a state where the air volume is adjusted by the first speed control valve 80, and the actuator 100 is opened. At this time, all settings are restored to the initial state.

[0038] In addition, this embodiment is not limited to Figures 1 to 6 The construction shown in , and can be Figure 7 and Figure 8The novel electric converter in this embodiment is implemented differently as shown in the figure, wherein the novel electric converter in this embodiment includes an air filter regulator 10 and a first solenoid valve 20a, the air filter regulator 10 is connected to the compressor to supply air with a predetermined pressure to the first solenoid valve 20a by reducing the air pressure, the first solenoid valve 20a receives the air supplied from the air filter regulator 10 and selectively distributes the air to the actuator 100 and the second solenoid valve 20b. The second solenoid valve 20b, the second speed control valve 30, the hand side valve 40, the regulator 50, and the shuttle valve 60, the second solenoid valve 20b receives the air from the first solenoid valve 20a and supplies the air depressurized to the regulator 50 to the shuttle valve 60, the second speed control valve 30 adjusts the amount of air applied from the second solenoid valve 20b and supplies it to the hand side valve 40, the hand side valve 40 is provided between the second solenoid valve 20b and the shuttle valve 60 so that it can be confirmed whether the operation of the novel electric converter 110 is normally performed, and the regulator 50 depressurizes the pressure of the air by closing the second solenoid valve 20b to the pressure of the shuttle valve 60. In response to air, the shuttle valve 60 supplies the air supplied from the solenoid valve 20b to the driver 100, the first speed control valve 80, which adjusts the amount of air applied from the first solenoid valve 20a and supplies it to the actuator 100, the limit switch 90, which applies a closing signal to the actuator when the air pressure supplied from one of the pipelines in the branch pipeline of the first solenoid valve 20a acts on the closing direction of the actuator 100, the rotating actuator 100, which is set on the new electrical converter 110 to open or close the valve disk 112, and the new electrical converter 110 is set between the pipelines to cut off or move the fluid moved by the actuator 100.

[0039] like Figures 1 to 6 The air filter regulator 10, the first electromagnetic node valve 20a, the hand side valve 40, the regulator 50, the limit switch 90 and the actuator 100 in the structure shown are constructed in the same manner, except that Figures 1 to 6In the invention, the second speed control valve 30 which is not constituted is added, and the amount of air applied by decompressing the second electromagnetic valve 20b is adjusted, thereby controlling the supply of air to the hand side valve 40, and overcoming the time difference between the pressure applied to the new electric converter 110 and the force discharged from the valve seal. As described above, the closing time of the notch is arbitrarily set, so that the valve seal can be pressurized, thereby improving the problem of load and sludge being caught by the valve disc 112 pushing the valve seal in due to the rapid release of air in the closed position of the second electromagnetic valve 20b. As described above, the utility model provides the actuator 90 and the first electromagnetic valve 20a in the state where the valve disc rotates. If a rotation signal is applied from the rear limit switch 90, the timer cuts off the air according to the time setting and restarts the supply, thereby preventing the load caused by the valve disc 112 pushing the valve seal in due to the rapid release of air in the normal position of the first electromagnetic valve 20a and the generation of sludge stuck in the valve disc 112 and the valve seal.

[0040] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. A novel electrical converter, characterized in that: The electrical converter comprises: A first solenoid valve (20a); A second solenoid valve (20b); Actuator (100); An air filter regulator (10), the air filter regulator (10) being connected to the compressor and reducing the air pressure while preventing overpressure to supply air set at a preset pressure to the first solenoid valve (20a); a hand-side valve (40) disposed between the second solenoid valve (20b) and the shuttle valve (60) so as to confirm whether the operation of the electric converter (110) is normal; Regulator (50); a shuttle valve (60); the first solenoid valve (20a) receives air supplied from the air filter regulator (10) and selectively distributes the air to the actuator (100) and the second solenoid valve (20b), the second solenoid valve (20b) receives air supplied from the first solenoid valve (20a) and supplies air decompressed by the regulator (50) to the shuttle valve (60); A timer (70) electrically connected to the first solenoid valve (20a) and a limit switch (90); A first speed control valve (80) is connected to the limit switch (90) to adjust the amount of air applied from the first solenoid valve (20a).

2. A novel electrical converter according to claim 1, characterized in that: The first solenoid valve (20a) supplies air to the open port direction of the actuator (100) when no power is applied, and supplies air to the closed port direction of the actuator (100) and to the second solenoid valve (20b) through a branch pipe when power is applied.

3. A novel electrical converter according to claim 1 or 2, characterized in that: When the first solenoid valve (20a) detects the rotation of the valve disc (112) and the closing contact signal of the limit switch (90) by supplying air to one of the pipelines in the branch pipeline, the timer (70) counts the set time.

4. A novel electrical converter according to claim 3, characterized in that: After counting a set time, the timer (70) energizes the second solenoid valve (20b) to open it, so that the trapped air pressure is supplied to the valve seal made inside the electric converter (110) through the shuttle valve (60).

5. A novel electrical converter according to claim 4, characterized in that: When the timer (70) applies a switching signal to the limit switch (90), the second solenoid valve (20b) is opened to supply air according to a set time, or when power is applied to supply air in the direction of the closing port of the actuator (100) after a set time has passed, power is applied to the second solenoid valve (20b) to drive it.

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