Integrated pneumatic control valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to an integrated pneumatic control valve which comprises an integrated valve block, a circulation channel is arranged in the integrated valve block, and an air inlet pipe connector and an air outlet pipe connector are fixedly arranged at an air inlet and an air outlet of the circulation channel respectively. An air inlet electromagnetic valve is inserted into the surface of the integrated valve block in a threaded mode, an exhaust electromagnetic valve is inserted into the surface of the integrated valve block in a threaded mode, and an air inlet pressure sensor is fixedly arranged at the position, close to an air inlet, of the surface of the integrated valve block; the pressure provided by the air source is detected through the air inlet pressure sensor, and the inflation pressure of the energy accumulator connected with the valve group is detected through the air outlet pressure sensor, so that the pressure is accurately controlled, and the influence on the nitrogen inflation effect due to the deviation between the outlet pressure and the set pressure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a kind of integrated pneumatic control valve. BACKGROUND

[0002] Intelligent nitrogen charging equipment is a device for accurately and automatically charging nitrogen into a specific container or system. Its core working principle is based on gas pressure control and flow control technology. There is usually a gas source (such as a nitrogen cylinder or a nitrogen generator) connected to a control unit through a pipeline, which can accurately adjust the pressure and flow of nitrogen, and then charge nitrogen into the target equipment. In intelligent nitrogen charging equipment, control valves are mainly used to accurately control the flow, pressure and flow direction of nitrogen to ensure the accuracy and safety of the nitrogen charging process. By adjusting the opening of the control valve, various parameters of nitrogen can be flexibly adjusted according to different nitrogen charging needs.

[0003] For the pressure control valve of the nitrogen charging equipment, although the design purpose is to accurately control the pressure, in actual operation, there may be deviations between the outlet pressure and the set pressure due to mechanical factors such as spring fatigue and valve core friction. Especially after long-term operation or high-frequency nitrogen charging operation, this deviation may gradually increase, affecting the nitrogen charging effect; therefore, an integrated pneumatic control valve is proposed to solve the above problems. SUMMARY

[0004] To make up for the shortcomings of the prior art and solve the technical problems mentioned above, the utility model provides an integrated pneumatic control valve.

[0005] The utility model discloses a kind of integrated pneumatic control valves, including integrated valve block, the integrated valve block inside is provided with flow passage, the gas inlet and gas outlet of the flow passage are respectively fixed with gas inlet pipe joint and gas outlet pipe joint, the surface of the integrated valve block is screw thread inserted with gas inlet solenoid valve, the surface of the integrated valve block is screw thread inserted with exhaust solenoid valve, the surface of the integrated valve block is fixed with gas inlet pressure sensor near gas inlet, the surface of the integrated valve block is fixed with gas outlet pressure sensor near gas outlet.

[0006] Preferably, the surface of the integrated valve block is screw thread inserted with a check valve, the check valve is located between the gas inlet pipe joint and the gas inlet solenoid valve, and the check valve is communicated with the gas inlet passage.

[0007] Preferably, the surface of the integrated valve block is fixed with a muffler body, the muffler body is located between the gas outlet pressure sensor and the exhaust solenoid valve, and the inlet of the muffler body is communicated with the gas outlet end of the exhaust solenoid valve.

[0008] Preferably, the muffler body adopts a high-pressure muffler with throttling damping.

[0009] Preferably, the intake electromagnetic valve and the exhaust electromagnetic valve adopt high-frequency pneumatic electromagnetic valves.

[0010] Preferably, the intake electromagnetic valve, the exhaust electromagnetic valve, the intake pressure sensor and the exhaust pressure sensor are collectively electrically connected with a controller.

[0011] Preferably, a collecting assembly is installed at the outlet of the muffler body, the collecting assembly comprising a collecting cylinder, a gas inlet joint and a gas outlet joint being fixedly arranged at the top end of the collecting cylinder, the top end of the gas inlet joint being connected with the outlet of the muffler body through a pipeline, a gas inlet check valve being fixedly arranged at the bottom end of the gas inlet joint, and a valve being fixedly arranged on the gas outlet joint.

[0012] Preferably, a piston plate is arranged inside the collecting cylinder, a convex layer is fixedly connected to the inner wall of the lower side of the collecting cylinder, and a gas charging joint is fixedly arranged on the lower side wall of the collecting cylinder.

[0013] The utility model discloses the beneficial effect lies in:

[0014] 1. The utility model discloses a gas source provides the pressure size through the intake pressure sensor detection, and the gas pressure sensor detection and the accumulator of valve group's inflation pressure connected, thereby realizes accurate control pressure, avoids the deviation between export pressure and set pressure, influences the nitrogen filling effect.

[0015] 2. The utility model discloses through the exhaust electromagnetic valve exhausts when overpressure, and through the muffler body exhausts and carries out the muffling.

[0016] 3. The utility model discloses through the intake electromagnetic valve, exhaust electromagnetic valve, check valve adopts the threaded plug -in structure, greatly reduces the volume of valve group, and the device adopts the high integration, light weight, intelligent design, replaces traditional pipeline type manual control mode. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, below description in the drawing only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the collecting assembly and muffler body connection schematic diagram of the utility model;

[0020] Figure 3 The utility model discloses a collection cylinder sectional view.

[0021] In the figure: 1, inlet electromagnetic valve;2, outlet pressure sensor;3, muffler main part;4, integrated valve block;5, exhaust electromagnetic valve;6, check valve;7, inlet pressure sensor;8, inlet pipe joint;9, outlet pipe joint;10, collection assembly;101, collection cylinder;102, inlet joint;103, inlet check valve;104, piston plate;105, convex layer;106, inflation joint;107, outlet joint. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Embodiment one

[0024] Please refer to Figure 1 As shown in the figure, an integrated pneumatic control valve comprises an integrated valve block 4, a flow passage is arranged in the integrated valve block 4, an inlet pipe joint 8 and an outlet pipe joint 9 are fixedly arranged at the inlet and outlet of the flow passage respectively, an inlet electromagnetic valve 1 is screw-threadedly inserted into the surface of the integrated valve block 4, an exhaust electromagnetic valve 5 is screw-threadedly inserted into the surface of the integrated valve block 4, an inlet pressure sensor 7 is fixedly arranged on the surface of the integrated valve block 4 close to the inlet, an outlet pressure sensor 2 is fixedly arranged on the surface of the integrated valve block 4 close to the outlet, a check valve 6 is screw-threadedly inserted into the surface of the integrated valve block 4, the check valve 6 can make up for the defect that the pneumatic valve cannot be airtight in both directions, so that airtightness and pressure test of a container connected to the outlet can be realized, the check valve 6 is located between the inlet pipe joint 8 and the inlet electromagnetic valve 1, the check valve 6 is communicated with the inlet passage, a muffler main part 3 is fixedly arranged on the surface of the integrated valve block 4, the muffler main part 3 is located between the outlet pressure sensor 2 and the exhaust electromagnetic valve 5, the inlet of the muffler main part 3 is communicated with the outlet end of the exhaust electromagnetic valve 5, the inlet electromagnetic valve 1, the exhaust electromagnetic valve 5 and the check valve 6 adopt a screw-threaded insertion structure, so that the volume of the valve group is greatly reduced.

[0025] Specifically, the gas inlet pipe joint 8 is used for connecting with the gas source, nitrogen gas is input into the integrated valve block 4, the gas outlet pipe joint 9 is used for connecting with the target equipment to fill nitrogen gas, the gas inlet pressure sensor 7 is used for detecting the pressure at the gas inlet, and the pressure provided by the gas source is detected, and then the one-way valve 6 and the gas inlet electromagnetic valve 1 are arranged, the gas inlet electromagnetic valve 1 is used for controlling the on-off of the gas pressure in the flow channel, the one-way valve 6 is arranged before the gas inlet electromagnetic valve 1, and the one-way valve 6 can prevent the reverse leakage of the gas pressure in the case that the electromagnetic valve is not powered, and then the gas outlet pressure sensor 2, the gas outlet electromagnetic valve 5 and the muffler body 3 are arranged, the outlet of the gas inlet electromagnetic valve 1 and the inlet of the gas outlet electromagnetic valve 5 are the same as the gas outlet pressure sensor 2 and are communicated with the gas outlet, the gas outlet pressure sensor 2 is used for detecting the pressure of the gas outlet and the inflation pressure of the accumulator connected with the valve group, when the gas outlet pressure sensor 2 detects that the pressure is high, the gas can be discharged through the gas outlet electromagnetic valve 5, and the throttling damping in the muffler body 3 can realize the adjustment of the exhaust speed and prevent the gas pressure entering the muffler body 3 from being too high, so that the muffler body 3 can be prevented from being exploded and certain noise can be reduced.

[0026] The muffler body 3 is a high-pressure muffler with throttling damping.

[0027] Specifically, the high-pressure muffler body 3 with throttling function can meet the exhaust muffling function of 0-25MPa.

[0028] The gas inlet electromagnetic valve 1 and the gas outlet electromagnetic valve 5 are high-frequency pneumatic electromagnetic valves, and the gas inlet electromagnetic valve 1, the gas outlet electromagnetic valve 5, the gas inlet pressure sensor 7 and the gas outlet pressure sensor 2 are electrically connected with a controller.

[0029] Specifically, the gas inlet electromagnetic valve 1 is used for outputting high-pressure pressure, the gas outlet electromagnetic valve 5 is arranged to discharge gas when the pressure is too high, the high-frequency pneumatic electromagnetic valve cooperates with the gas outlet pressure sensor 2 to form an automatic pressure regulating module, and the controller can automatically realize the pressure charging and pressure relief of any pressure.

[0030] Embodiment two

[0031] Comparative embodiment one, please refer to Figures 2-3 The utility model provides another embodiment, the muffler body 3 is provided with a collection assembly 10 at the outlet, the collection assembly 10 includes a collection cylinder 101, the top of collection cylinder 101 is fixedly provided with a gas inlet joint 102 and a gas outlet joint 107, the top of gas inlet joint 102 is connected with the outlet of muffler body 3 through a pipeline, the bottom of gas inlet joint 102 is fixedly provided with a gas inlet check valve 103, a valve is fixedly arranged on the gas outlet joint 107, a piston plate 104 is arranged in the collection cylinder 101, a convex layer 105 is fixedly connected to the inner wall of the lower side of collection cylinder 101, and a gas charging joint 106 is fixedly arranged on the lower side wall of collection cylinder 101.

[0032] Specific, intake check valve 103 is used to avoid the collection cylinder 101 inside the nitrogen gas from the intake joint 102 outflow, close the valve of the outlet joint 107, the muffler exhaust, nitrogen gas through the pipeline from the intake joint 102 into the inside of the collection cylinder 101, and then through the collection cylinder 101 collects nitrogen gas, realizes the reuse, reduces the waste, nitrogen fills in the collection cylinder 101, and gradually pushes the piston plate 104 to slide down, when nitrogen needs to be discharged, the outlet joint 107 is connected with the gas source, the valve is opened, and the inflation joint 106 is connected with the inflation pump, the gas is pumped from the bottom of the collection cylinder 101, the gas pushes the piston plate 104 to rise, and then the nitrogen gas is squeezed into the gas source from the outlet joint 107, so as to realize the recycling of nitrogen.

[0033] The working principle is that the inlet pipe joint 8 is connected with the gas source to input nitrogen into the integrated valve block 4, the outlet pipe joint 9 is connected with the target equipment to fill nitrogen, the inlet pressure sensor 7 is used for detecting the pressure at the inlet and detecting the pressure provided by the gas source, the inlet electromagnetic valve 1 is used for controlling the on-off of the gas pressure in the flow channel, the outlet pressure sensor 2 is used for detecting the pressure at the outlet and detecting the inflation pressure of the accumulator connected with the valve group, when the outlet pressure sensor 2 detects high pressure, the exhaust electromagnetic valve 5 can be used for exhaust, the throttling damping inside the muffler body 3 can realize the adjustment of the exhaust speed and prevent the gas pressure entering the muffler body 3 from being too high, which can prevent the muffler body 3 from exploding and reduce certain noise, and the exhaust electromagnetic valve 5 is arranged to be used for exhaust when the pressure is too high, the high-frequency pneumatic electromagnetic valve cooperates with the outlet pressure sensor 2 to form an automatic pressure regulating module, and the controller can automatically realize the inflation and pressure relief of any pressure.

[0034] The working principle is that the inlet pipe joint 8 is connected with the gas source to input nitrogen into the integrated valve block 4, the outlet pipe joint 9 is connected with the target equipment to fill nitrogen, the inlet pressure sensor 7 is used for detecting the pressure at the inlet and detecting the pressure provided by the gas source, the inlet electromagnetic valve 1 is used for controlling the on-off of the gas pressure in the flow channel, the outlet pressure sensor 2 is used for detecting the pressure at the outlet and detecting the inflation pressure of the accumulator connected with the valve group, when the outlet pressure sensor 2 detects high pressure, the exhaust electromagnetic valve 5 can be used for exhaust, the throttling damping inside the muffler body 3 can realize the adjustment of the exhaust speed and prevent the gas pressure entering the muffler body 3 from being too high, which can prevent the muffler body 3 from exploding and reduce certain noise, and the exhaust electromagnetic valve 5 is arranged to be used for exhaust when the pressure is too high, the high-frequency pneumatic electromagnetic valve cooperates with the outlet pressure sensor 2 to form an automatic pressure regulating module, and the controller can automatically realize the inflation and pressure relief of any pressure.

[0035] In the description of the present application, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An integrated pneumatic control valve comprising an integrated valve block (4), characterized in that: The integrated valve block (4) is internally provided with a flow channel, the air inlet and air outlet of the flow channel are respectively fixedly provided with an air inlet pipe joint (8) and an air outlet pipe joint (9), the surface of the integrated valve block (4) is screwedly inserted with an air inlet electromagnetic valve (1), the surface of the integrated valve block (4) is screwedly inserted with an air outlet electromagnetic valve (5), the surface of the integrated valve block (4) is fixedly provided with an air inlet pressure sensor (7) close to the air inlet, and the surface of the integrated valve block (4) is fixedly provided with an air outlet pressure sensor (2) close to the air outlet.

2. The integrated pneumatic control valve of claim 1, wherein: The surface of the integrated valve block (4) is screwedly inserted with a one-way valve (6), the one-way valve (6) is located between the air inlet pipe joint (8) and the air inlet electromagnetic valve (1), and the one-way valve (6) communicates with the air inlet channel.

3. The integrated pneumatic control valve of claim 1, wherein: The surface of the integrated valve block (4) is fixedly provided with a muffler body (3), the muffler body (3) is located between the air outlet pressure sensor (2) and the air outlet electromagnetic valve (5), and the inlet of the muffler body (3) is in communication with the air outlet end of the air outlet electromagnetic valve (5).

4. The integrated pneumatic control valve of claim 3, wherein: The muffler body (3) is a high-pressure muffler with throttling damping.

5. The integrated pneumatic control valve of claim 1, wherein: The air inlet electromagnetic valve (1) and the air outlet electromagnetic valve (5) are high-frequency pneumatic electromagnetic valves.

6. The integrated pneumatic control valve of claim 1, wherein: The air inlet electromagnetic valve (1), the air outlet electromagnetic valve (5), the air inlet pressure sensor (7) and the air outlet pressure sensor (2) are electrically connected with a controller.

7. The integrated pneumatic control valve of claim 3, wherein: The outlet of the muffler body (3) is provided with a collection assembly (10), the collection assembly (10) comprises a collection cylinder (101), the top end of the collection cylinder (101) is fixedly provided with an air inlet joint (102) and an air outlet joint (107), the top end of the air inlet joint (102) is connected with the outlet of the muffler body (3) through a pipeline, the bottom end of the air inlet joint (102) is fixedly provided with an air inlet check valve (103), and the air outlet joint (107) is fixedly provided with a valve.

8. The integrated pneumatic control valve of claim 7, wherein: The inside of the collection cylinder (101) is provided with a piston plate (104), the lower inner wall of the collection cylinder (101) is fixedly connected with a convex layer (105), and the lower wall of the collection cylinder (101) is fixedly provided with an air charging joint (106).

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