Anti-surge gas path control system and valve with anti-surge function

Abstract

The utility model discloses an anti-surge gas path control system contains: first pipeline, second pipeline, gas path reversing valve, positioner, two position three way valves and gas holder, wherein, gas source entrance, filter, pressure reducing valve, first connecting assembly, check valve, second connecting assembly, gas path amplifier and first air outlet are sequentially arranged on first pipeline, and the quick exhaust valve and second air outlet are arranged on second pipeline, and gas path reversing valve is communicated with second pipeline, gas path amplifier, second connecting assembly respectively, and positioner is communicated with first connecting assembly, gas path reversing valve respectively, and two position three way valves are communicated with first connecting assembly, gas path reversing valve respectively, and gas holder is communicated with second connecting assembly. The utility model discloses a valve with anti-surge function. The utility model can effectively avoid the valve failure caused by surge, improve the working stability and safety of valve, also ensure the continuity and stability of entire production process.

Description

Technical Field

[0001] This utility model relates to the field of anti-surge technology, and in particular to an anti-surge air circuit control system and a valve with anti-surge function. Background Technology

[0002] In pipeline valve control, equipment involving gas transmission and control often faces surge problems. Surge can lead to unstable equipment operation, generating strong vibrations and noise, and in severe cases, can even damage the equipment, affecting the continuity and safety of production. Furthermore, in some scenarios, when the gas supply is interrupted by power or gas supply failure, the control system needs to still be able to control the normally open or normally closed valves to ensure the overall stability of the equipment. Summary of the Invention

[0003] According to an embodiment of the present invention, an anti-surge airflow control system is provided, comprising:

[0004] The first pipeline is provided with an air source inlet, a filter, a pressure reducing valve, a first connecting assembly, a one-way valve, a second connecting assembly, an air circuit amplifier, and a first air outlet in sequence.

[0005] The second pipeline is equipped with a quick exhaust valve and a second air outlet, which is located at the rear end of the second pipeline.

[0006] The gas path reversing valve is equipped with SUP port, A port, B port, C port, D port, E port and F port; port B is connected to the front end of the second pipeline, port E is connected to the gas path amplifier, and port F is connected to the second connecting component.

[0007] The locator is equipped with an L port, an M port, and an N port; the L port is connected to the A port, the M port is connected to the first connecting component, and the N port is connected to the D port.

[0008] Two-position three-way valve, one end of which is connected to the first connecting component, and the other end of which is connected to the SUP port;

[0009] The gas storage tank is connected to the second connecting component.

[0010] Furthermore, it also includes: a third pipeline, on which a first manual valve is installed, and the first manual valve is connected in parallel with the quick-release valve through the third pipeline.

[0011] Furthermore, it also includes: a fourth pipeline, the two ends of which are connected to the first pipeline and the second pipeline respectively; a second manual valve is installed on the fourth pipeline.

[0012] Furthermore, a two-position two-way valve is installed on the fourth pipeline, located at the end of the fourth pipeline closest to the second pipeline.

[0013] Furthermore, the filter is a Y-shaped filter.

[0014] Furthermore, it also includes: a housing, and a gas path control system is housed within the housing.

[0015] According to another embodiment of the present invention, a valve with anti-surge function is provided, comprising an anti-surge air circuit control system, an air source, an actuator, and a valve as described in the previous embodiment. The air source is connected to the air source inlet, and the first air outlet and the second air outlet are connected to the actuator. The actuator is connected to the valve and is used to control the valve opening and closing.

[0016] The anti-surge air circuit control system and the valve having the anti-surge air circuit control system according to the present invention can effectively avoid valve failure caused by surge, improve the working stability and safety of the valve, extend the service life of the valve, and also ensure the continuity and stability of the entire production process.

[0017] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0018] Figure 1 This is a perspective view of the anti-surge airflow control system according to an embodiment of the present utility model;

[0019] Figure 2 This is a perspective view of the anti-surge air circuit control system according to an embodiment of the present invention after the housing has been removed.

[0020] Figure 3 According to the embodiments of this utility model Figure 2 A 3D view from another perspective after removing the gas tank;

[0021] Figure 4 According to the embodiments of this utility model Figure 2 The front view;

[0022] Figure 5 According to the embodiments of this utility model Figure 2 Top view;

[0023] Figure 6 This is a schematic diagram of a valve with the anti-surge air circuit control system according to an embodiment of the present invention. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0025] First, combine Figures 1-6The anti-surge air circuit control system according to an embodiment of the present invention is used for valve control and has a wide range of applications.

[0026] like Figures 1-6 As shown, the anti-surge airflow control system of this utility model embodiment includes:

[0027] The first pipeline 1 is sequentially equipped with an air source inlet 11, a filter 12, a pressure reducing valve 13, a first connecting assembly 14, a one-way valve 15, a second connecting assembly 16, an air path amplifier 17 (prior art), and a first air outlet 18. The air source inlet 11 connects to an external air source. The filter 12 filters impurities in the gas to ensure its cleanliness. Preferably, a Y-shaped filter 12 is used, which has good filtration effect and is easy to install and maintain. The pressure reducing valve 13 regulates the gas pressure to achieve the appropriate value required by the system. The first connecting assembly 14 and the second connecting assembly 16 connect to other components. The one-way valve 15 prevents gas backflow. The air path amplifier 17 amplifies the gas signal, enhancing the air path control effect. The first air outlet 18 connects to an external actuator.

[0028] The second pipeline 2 is equipped with a quick-release valve 21 and a second air outlet 22, which is located at the rear end of the second pipeline 2. The quick-release valve 21 can quickly discharge gas and plays an important role when the system needs to quickly depressurize or switch the gas path state. When gas is introduced, the gas enters the quick-release valve 21 from the left and reaches the second air outlet 22. When the gas enters the quick-release valve 21 from the second air outlet 22, it is discharged through the quick-release valve 21. The second air outlet 22 is also used to connect to an external actuator.

[0029] The action of the actuator is controlled by adjusting the air pressure entering the external actuator through the first air outlet 18 and the second air outlet 22.

[0030] The gas path reversing valve 3 (existing technology) is provided with an SUP port (i.e., air inlet), A port, B port, C port, D port, E port and F port; the B port is connected to the front end of the second pipeline 2, the E port is connected to the gas path amplifier 17, the F port is connected to the second connecting component 16, and the C port is the VENT port (i.e., exhaust port); by controlling the opening and closing of different ports of the gas path reversing valve 3, the switching of the gas path and the rational distribution of gas can be realized;

[0031] Positioner 4 (existing technology) is provided with L port, M port (i.e., positioner 4 inlet) and N port; L port is connected to A port, M port is connected to the first connecting component 14, and N port is connected to D port; Positioner 4, in cooperation with gas circuit reversing valve 3, precisely controls the state of gas circuit and gas flow rate, thereby achieving precise control of the system.

[0032] Two-position three-way valve 5, one end of which is connected to the first connecting assembly 14 and the other end is connected to the SUP port. The two-position three-way valve 5 is used to control the opening and closing of the SUP port.

[0033] Gas storage tank 6 is connected to the second connecting component 16 and is used to maintain the stability of the entire system after the gas source is cut off.

[0034] Furthermore, such as Figures 2-5 As shown, in this embodiment, the first connecting component 14 and the second connecting component 16 consist of a connector and a connecting pipe.

[0035] Furthermore, such as Figures 2-3 As shown in Figures 5 and 6, this embodiment further includes a third pipeline 7, on which a first manual valve 71 is installed. The first manual valve 71 is connected in parallel with the quick-release valve 21 through the third pipeline 7. When the quick-release valve 21 malfunctions or when manual control of gas emission is required, gas emission can be achieved by operating the first manual valve 71, increasing the reliability of the system and the flexibility of operation.

[0036] Furthermore, such as Figures 1-4 As shown in Figure 6, this embodiment further includes: a fourth pipeline 8, with both ends of the fourth pipeline 8 connected to the first pipeline 1 and the second pipeline 2 respectively; a second manual valve 81 and a two-position two-way valve 82 are provided on the fourth pipeline 8, with the two-position two-way valve 82 located at one end of the fourth pipeline 8 near the second pipeline 2. When the quick-release valve 21 fails, the two-position two-way valve 82 can release the gas on the second pipeline 2.

[0037] Furthermore, in this embodiment, the first manual valve 71 and the second manual valve 81 are normally closed.

[0038] Furthermore, such as Figure 1 As shown, in this embodiment, it also includes: a housing 9, and the air circuit control system is disposed inside the housing 9; the housing 9 can protect the system components and prevent external factors from interfering with and damaging the system.

[0039] like Figure 6 As shown, according to another embodiment of the present invention, a valve with anti-surge function is provided, comprising an anti-surge air circuit control system, an air source, an actuator and a valve as described in the previous embodiment. The air source is connected to the air source inlet 11, and the first air outlet 18 and the second air outlet 22 are connected to the actuator. The actuator is connected to the valve and is used to control the valve opening and closing.

[0040] Working principle: The anti-surge air circuit control system is controlled by the DCS (Distributed Control System, a prior art technology) in the control center. First, the air source is turned on, and compressed air passes through filter 12 and pressure reducing valve 13. Then, the compressed air is delivered to port M of positioner 4, two-position three-way valve 5, air tank 6, and air circuit amplifier 17. The compressed air enters port SUP of air circuit reversing valve 3 through two-position three-way valve 5. When port SUP of air circuit reversing valve 3 receives the air source signal, it will connect ports DE and AB, and close ports C and F. At this time, positioner 4 transmits the gas to ports D and E of air circuit reversing valve 3 through positioner N respectively. The compressed air at port E... Air is transmitted to the signal port of the pneumatic amplifier 17, which opens the pneumatic amplifier 17. The pneumatic amplifier 17 transmits compressed air through the first air outlet 18 to the lower inlet of the actuator. The positioner 4 transmits the gas through the positioning port L to the reversing valves A and B respectively, and through the quick exhaust valve 21 and the second air outlet 22 to the upper inlet of the actuator. Then, the detector on the actuator transmits the signal to the DSC. The DSC feeds back the signal to the positioner 4. The positioner 4 adjusts the opening of the L and N ports based on the information fed back from the DSC to drive the actuator. The actuator controls the opening and closing of the valve.

[0041] When power is off, the gas supply is shut off, the two-position three-way solenoid valve is de-energized, and the gas in the SUP port of the gas reversing valve 3 is discharged through the two-position three-way solenoid valve, closing the DE and AB ports and connecting the EF and BC ports. At this time, the gas stored in the gas tank 6 is delivered to the FE port of the reversing valve and the gas amplifier 17 respectively; the compressed air passing through the FE port is transmitted to the gas amplifier 17, causing the gas amplifier 17 to open, and the gas in the gas tank 6 is transmitted to the first air outlet 18 through the gas amplifier 17, causing the actuator to operate, and the actuator drives the valve to remain open; at the same time, the compressed air at the top of the actuator is discharged through the quick exhaust valve 21. At this time, the valve can remain open regardless of whether power is on or off, ensuring the continuity of production. Conversely, by switching the connection positions of the first air outlet 18 and the second air outlet 22 with the actuator, the valve can be kept closed when power is off.

[0042] Above, refer to Figures 1-6 The present invention describes an anti-surge air circuit control system and a valve having the anti-surge air circuit control system according to an embodiment of the present invention. The system can effectively avoid valve failure caused by surge, improve the working stability and safety of the valve, extend the service life of the valve, and also ensure the continuity and stability of the entire production process.

[0043] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0044] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A surge prevention airflow control system, characterized in that, Include: The first pipeline is provided with an air source inlet, a filter, a pressure reducing valve, a first connecting assembly, a one-way valve, a second connecting assembly, an air path amplifier, and a first air outlet in sequence. The second pipeline is equipped with a quick exhaust valve and a second air outlet, which is located at the rear end of the second pipeline. A gas path reversing valve is provided with an SUP port, an A port, a B port, a C port, a D port, an E port, and an F port; the B port is connected to the front end of the second pipeline, the E port is connected to the gas path amplifier, and the F port is connected to the second connecting component. The locator is provided with an L port, an M port and an N port; the L port is connected to the A port, the M port is connected to the first connecting component, and the N port is connected to the D port; A two-position three-way valve, one end of which is connected to the first connecting assembly and the other end of which is connected to the SUP port; A gas storage tank, which is connected to the second connecting component.

2. The anti-surge airflow control system as described in claim 1, characterized in that, It also includes: a third pipeline, on which a first manual valve is provided, the first manual valve being connected in parallel with the quick-release valve through the third pipeline.

3. The anti-surge airflow control system as described in claim 1, characterized in that, It also includes: a fourth pipeline, the two ends of which are respectively connected to the first pipeline and the second pipeline; a second manual valve is provided on the fourth pipeline.

4. The anti-surge airflow control system as described in claim 3, characterized in that, The fourth pipeline is also equipped with a two-position two-way valve, which is located at the end of the fourth pipeline near the second pipeline.

5. The anti-surge airflow control system as described in claim 1, characterized in that, The filter is a Y-shaped filter.

6. The anti-surge airflow control system as described in claim 1, characterized in that, It also includes: a housing, within which the gas path control system is disposed.

7. A valve with anti-surge function, characterized in that, The system comprises an anti-surge air circuit control system as described in any one of claims 1 to 6, an air source, an actuator, and a valve, wherein the air source is connected to the air source inlet, and the first air outlet and the second air outlet are connected to the actuator; the actuator is connected to the valve and is used to control the valve opening and closing.

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