A remote control electromagnetic emergency cut-off device

Abstract

The present invention relates to the technical field of safety valve accessory devices, and in particular to a remote-controlled electromagnetic emergency shut-off device; the device can realize a remote emergency shut-off function, has a low cost, and is more convenient to manage; it comprises a crane pipe, a connecting pipe, and a discharge pipe, wherein the input end of the crane pipe is provided with a first switch valve, the output end of the connecting pipe is connected to the input end of the first switch valve, and the output end of the discharge pipe is connected to the input end of the connecting pipe; it also comprises a hydraulic valve, a hand-cranked oil pump, a connecting pipe, a solenoid valve, and a hand-held remote control, wherein a rocker is provided on the hand-cranked oil pump, the hydraulic valve is fixedly arranged on the connecting pipe, an oil delivery pipe is provided on the hydraulic valve, the output end of the hand-cranked oil pump is connected to the input end of the solenoid valve, the output end of the solenoid valve is connected to the input end of the connecting pipe, the output end of the connecting pipe is connected to the input end of the oil delivery pipe, and the hand-held remote control is connected to the solenoid valve through an electrical signal.

Description

Technical Field

[0001] The invention relates to the technical field of safety valve accessory devices, in particular to a remote-controlled electromagnetic emergency cut-off device. Background Art

[0002] As we all know, when a liquid chlorine transport tank truck is unloading, the crane pipe connected to the chlorine storage tank needs to be connected to the unloading pipe of the liquid chlorine tank truck. A switch valve is provided on the crane pipe, and a connecting pipe is provided at the input end of the switch valve. The connecting pipe is connected to the unloading pipe. When an accident such as liquid chlorine leakage occurs at the liquid chlorine transport tank, the switch valve needs to be closed manually in an emergency. When the operator is far away from the switch valve, he needs to run to the switch valve to close the valve. Failure to close the valve in time may easily cause a major safety accident. Currently, there are devices on the market that use electric valves to connect to the PLC system at the connecting pipe for remote control to achieve emergency shut-off. However, the electric valve and the supporting PLC system are expensive, and have high requirements for management technology. For small enterprises, the economic burden is large and there are certain limitations in use. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a remote control electromagnetic emergency cut-off device which can realize the remote emergency cut-off function, has a low cost and is more convenient to manage.

[0004] A remote-controlled electromagnetic emergency shut-off device of the present invention comprises a lifting pipe, a connecting pipe and a discharge pipe, wherein a first switch valve is arranged at the input end of the lifting pipe, an output end of the connecting pipe is communicated with the input end of the first switch valve, and an output end of the discharge pipe is communicated with the input end of the connecting pipe; the device also comprises a hydraulic valve, a hand-cranked oil pump, a connecting pipe, a solenoid valve and a hand-held remote control, wherein a rocker for controlling the hand-cranked oil pump is arranged on the hand-cranked oil pump, the hydraulic valve is fixedly arranged on the connecting pipe, an oil delivery pipe is arranged on the hydraulic valve, an output end of the hand-cranked oil pump is communicated with an input end of the solenoid valve, an output end of the solenoid valve is communicated with an input end of the connecting pipe, an output end of the connecting pipe is communicated with an input end of the oil delivery pipe, and the hand-held remote control is connected to the solenoid valve via an electrical signal.

[0005] In a remote-controlled electromagnetic emergency shut-off device of the present invention, a first three-way pipe is arranged on the connecting pipe, and a pressure gauge is arranged at the top output end of the first three-way pipe.

[0006] The invention relates to a remote-controlled electromagnetic emergency shut-off device, wherein the output end of the hand-cranked oil pump is provided with a second switch valve, the input end of the second switch valve is connected to the output end of the hand-cranked oil pump, and the output end of the second switch valve is connected to the input end of the electromagnetic valve.

[0007] A remote-controlled electromagnetic emergency shut-off device of the present invention also includes a second three-way pipe and a vent valve, the output end of the solenoid valve is connected to the top end of the second three-way pipe, the left end of the second three-way pipe is connected to the right end of the first three-way pipe, and the right end of the second three-way pipe is connected to the left end of the vent valve.

[0008] In the remote-controlled electromagnetic emergency cutting device of the present invention, the connecting pipe is made of copper alloy.

[0009] In a remote-controlled electromagnetic emergency shutoff device of the present invention, the hand-operated oil pump and the electromagnetic valve are arranged in a non-explosion-proof area, and the hydraulic valve is arranged in an explosion-proof area.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the operator shakes the joystick to allow the hydraulic oil in the hand-cranked oil pump to enter the hydraulic valve through the connecting pipe, so that the hydraulic valve is in a normally open state. At this time, the solenoid valve is closed to keep the oil pressure in the hydraulic valve constant. When an emergency such as liquid chlorine leakage occurs, the operator operates the hand-held remote control to open the solenoid valve, and the hydraulic oil in the hydraulic valve flows back to the hand-cranked oil pump. The hydraulic valve is closed after the pressure is relieved, thereby achieving emergency shut-off and avoiding large-scale leakage of liquid chlorine in the chlorine storage tank, ensuring the safety of on-site operators. The operation is simple, and the automatic closing of the hydraulic valve is controlled by a smaller solenoid valve, so the technical requirements are relatively low. The cost of the hydraulic valve, the hand-cranked oil pump and the solenoid valve are lower than that of the electric valve and the supporting PLC system, which can save costs for enterprises and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the cutting principle structure of the present invention;

[0012] Figure 2 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0013] Figure 3 It is a schematic diagram of the control principle of the solenoid valve of the present invention;

[0014] Markings in the attached figure: 1. crane pipe; 2. connecting pipe; 3. unloading pipe; 4. first switch valve; 5. hydraulic valve; 6. hand-cranked oil pump; 7. connecting pipe; 8. solenoid valve; 9. hand-held remote control; 10. oil pipeline; 11. first three-way pipe; 12. pressure gauge; 13. second switch valve; 14. second three-way pipe; 15. vent valve. DETAILED DESCRIPTION

[0015] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] like Figures 1 to 3As shown, a remote-controlled electromagnetic emergency shut-off device of the present invention comprises a lifting pipe 1, a connecting pipe 2 and a discharge pipe 3, wherein the input end of the lifting pipe 1 is provided with a first switch valve 4, the output end of the connecting pipe 2 is communicated with the input end of the first switch valve 4, and the output end of the discharge pipe 3 is communicated with the input end of the connecting pipe 2; it also comprises a hydraulic valve 5, a hand-cranked oil pump 6, a connecting pipe 7, a solenoid valve 8 and a hand-held remote control 9, the hand-cranked oil pump 6 is provided with a rocker for controlling the hand-cranked oil pump 6, the hydraulic valve 5 is fixedly arranged on the connecting pipe 2, an oil delivery pipe 10 is arranged on the hydraulic valve 5, the output end of the hand-cranked oil pump 6 is communicated with the input end of the solenoid valve 8, the output end of the solenoid valve 8 is communicated with the input end of the connecting pipe 7, the output end of the connecting pipe 7 is communicated with the input end of the oil delivery pipe 10, and the hand-held remote control 9 is electrically connected to the solenoid valve 8. Signal connection; the operator shakes the joystick to make the hydraulic oil in the hand oil pump 6 enter the hydraulic valve 5 through the connecting pipe 7, so that the hydraulic valve 5 is in a normally open state. At this time, the solenoid valve 8 is closed to keep the oil pressure in the hydraulic valve 5 constant. When an emergency such as liquid chlorine leakage occurs, the operator operates the hand-held remote control 9 to open the solenoid valve 8, and the hydraulic oil in the hydraulic valve 5 flows back to the hand oil pump 6. The hydraulic valve 5 is closed after the pressure is released, thereby achieving emergency shut-off to avoid large-scale leakage of liquid chlorine in the chlorine storage tank and ensure the safety of on-site operators. The operation is simple, and the automatic closing of the hydraulic valve 5 is controlled by a smaller solenoid valve 8, with low technical requirements. The cost of the hydraulic valve 5, the hand oil pump 6 and the solenoid valve 8 are lower than that of the electric valve and the supporting PLC system, which can save costs for the enterprise and is more practical.

[0017] A remote-controlled electromagnetic emergency shut-off device of the present invention is provided with a first three-way pipe 11 on the connecting pipe 7, and a pressure gauge 12 is provided at the top output end of the first three-way pipe 11; the pressure gauge 12 can be provided to more intuitively and clearly understand the pressure in the connecting pipe 7, and when the pressure is too low, it can be discovered in time and corresponding processing can be performed.

[0018] A remote-controlled electromagnetic emergency shut-off device of the present invention is provided with a second switch valve 13 at the output end of a hand-cranked oil pump 6, the input end of the second switch valve 13 is connected to the output end of the hand-cranked oil pump 6, and the output end of the second switch valve 13 is connected to the input end of the solenoid valve 8; when a fault occurs in the hydraulic valve 5, the solenoid valve 8 or the pressure gauge 12 and needs to be repaired, the second switch valve 13 can be closed to prevent the hydraulic oil in the hand-cranked oil pump 6 from flowing out, so as to facilitate the operator to perform maintenance operations.

[0019] A remote-controlled electromagnetic emergency shut-off device of the present invention further includes a second three-way pipe 14 and a vent valve 15. The output end of the electromagnetic valve 8 is connected to the top end of the second three-way pipe 14, the left end of the second three-way pipe 14 is connected to the right end of the first three-way pipe 11, and the right end of the second three-way pipe 14 is connected to the left end of the vent valve 15. When the device is under maintenance, the hydraulic oil in the connecting pipe 7 can be emptied through the arrangement of the second three-way pipe 14 and the vent valve 15, so that the operator can perform maintenance operations conveniently.

[0020] In the remote-controlled electromagnetic emergency cut-off device of the present invention, the connecting pipe 7 is made of copper alloy; the copper alloy has a plastic cavity, is tough, is not easily corroded or rusted, and has a longer service life.

[0021] In a remote-controlled electromagnetic emergency shut-off device of the present invention, a hand-operated oil pump 6 and a solenoid valve 8 are arranged in a non-explosion-proof area, and a hydraulic valve 5 is arranged in an explosion-proof area. The liquid chlorine loading and unloading area is an explosion-proof area. The solenoid valve 8 and the hand-operated oil pump 6 are arranged in the non-explosion-proof area, and the hydraulic valve 5 is arranged in the explosion-proof area. This can prevent the solenoid valve 8 from generating electric sparks that cause explosions or fires, and is safer. At the same time, it can reduce the technical requirements of the solenoid valve 8 and reduce the purchase cost.

[0022] A remote-controlled electromagnetic emergency shut-off device of the present invention is first moved to the position required by the user before completing the above-mentioned actions during operation. The operator shakes the rocker to allow the hydraulic oil in the hand-operated oil pump 6 to enter the hydraulic valve 5 through the connecting pipe 7, so that the hydraulic valve 5 is in a normally open state. At this time, the electromagnetic valve 8 is closed to keep the oil pressure in the hydraulic valve 5 constant. When an emergency such as liquid chlorine leakage occurs, the operator operates the hand-held remote control 9 to open the electromagnetic valve 8, and the hydraulic oil in the hydraulic valve 5 flows back to the hand-operated oil pump 6. The hydraulic valve 5 is closed after the pressure is released, thereby achieving emergency shut-off, avoiding large-scale leakage of liquid chlorine in the chlorine storage tank, and ensuring the safety of on-site operators. The operation is simple, and the automatic closing of the hydraulic valve 5 is controlled by a smaller electromagnetic valve 8, so the technical requirements are relatively low. The cost of the hydraulic valve 5, the hand-operated oil pump 6 and the electromagnetic valve 8 are lower than that of the electric valve and the supporting PLC system, which can save costs for enterprises and is more practical. Use; the pressure in the connecting pipe 7 can be more intuitively and clearly understood through the setting of the pressure gauge 12, and when the pressure is too low, it can be discovered in time and corresponding treatment can be carried out; when the hydraulic valve 5, the solenoid valve 8 or the pressure gauge 12 fails and needs to be repaired, the second switch valve 13 can be closed to prevent the hydraulic oil in the hand oil pump 6 from flowing out, which is convenient for the operator to carry out maintenance work; when the device is under maintenance, the hydraulic oil in the connecting pipe 7 can be emptied through the setting of the second three-way pipe 14 and the vent valve 15, which is convenient for the operator to carry out maintenance work; the copper alloy material has a plastic cavity, is tough, not easy to corrode and rust, and has a longer service life; the liquid chlorine loading and unloading area is an explosion-proof area, the solenoid valve 8 and the hand oil pump 6 are arranged in a non-explosion-proof area, and the hydraulic valve 5 is arranged in an explosion-proof area, which can avoid the occurrence of electric sparks and the like in the solenoid valve 8 that cause explosions or fires, which is safer, and at the same time can reduce the technical requirements of the solenoid valve 8 and reduce the purchase cost.

[0023] The invention discloses a remote-controlled electromagnetic emergency shut-off device. The electromagnetic valve and the hand-held remote control are both purchased, and the electromagnetic valve and the hand-held remote control are electrically connected through the instruction manual purchased together. The electromagnetic valve is a DSG-01-2B2-D24-N1-50 model, and the hand-held remote control is matched with the electromagnetic valve.

[0024] A remote-controlled electromagnetic emergency cut-off device of the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0025] In the remote-controlled electromagnetic emergency shut-off device of the present invention, unless otherwise specified, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the directions of the terms in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A remote-controlled electromagnetic emergency cut-off device, characterized in that: The invention comprises a lifting pipe (1), a connecting pipe (2) and a discharge pipe (3), wherein the input end of the lifting pipe (1) is provided with a first switch valve (4), the output end of the connecting pipe (2) is connected to the input end of the first switch valve (4), and the output end of the discharge pipe (3) is connected to the input end of the connecting pipe (2); the invention also comprises a hydraulic valve (5), a hand-cranked oil pump (6), a connecting pipe (7), a solenoid valve (8) and a hand-held remote control (9), wherein the hand-cranked oil pump (6) is provided with a rocker for controlling the hand-cranked oil pump (6), the hydraulic valve (5) is fixedly arranged on the connecting pipe (2), the hydraulic valve (5) is provided with an oil delivery pipe (10), the output end of the hand-cranked oil pump (6) is connected to the input end of the solenoid valve (8), the output end of the solenoid valve (8) is connected to the input end of the connecting pipe (7), the output end of the connecting pipe (7) is connected to the input end of the oil delivery pipe (10), and the hand-held remote control (9) is connected to the solenoid valve (8) via an electrical signal; The connecting pipe (7) is provided with a first three-way pipe (11), and a pressure gauge (12) is provided at the top output end of the first three-way pipe (11); The output end of the hand-cranked oil pump (6) is provided with a second switch valve (13), the input end of the second switch valve (13) is communicated with the output end of the hand-cranked oil pump (6), and the output end of the second switch valve (13) is communicated with the input end of the solenoid valve (8); It also includes a second three-way pipe (14) and a vent valve (15), wherein the output end of the solenoid valve (8) is connected to the top end of the second three-way pipe (14), the left end of the second three-way pipe (14) is connected to the right end of the first three-way pipe (11), and the right end of the second three-way pipe (14) is connected to the left end of the vent valve (15); The hand-cranked oil pump (6) and the solenoid valve (8) are arranged in a non-explosion-proof area, and the hydraulic valve (5) is arranged in an explosion-proof area.

2. A remote-controlled electromagnetic emergency shutoff device as claimed in claim 1, characterized in that: The connecting pipe (7) is made of copper alloy.

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