Dual safety overpressure prevention fluid control device

Abstract

The utility model discloses a kind of double insurance anti-overpressure fluid control devices, including main valve body, main valve body is equipped with flow passage, pressure relief passage, pressure measurement passage;Pressure relief passage, pressure measurement passage are interconnected with flow passage;Safety diaphragm device is connected at pressure relief passage, pressure measurement passage is interconnected with pressure measurement cavity, and pressure measurement cavity bottom extends out measuring pipeline to outside side, measuring pipeline end one divides two, respectively with pressure switch, pressure sound-light alarm intercommunication.The utility model can realize emergency pressure relief, cooperate pressure switch linkage external control module to realize overpressure active shutdown, greatly improve safety;Emergency liquid outlet is simultaneously provided, cope with safety diaphragm pressure relief not smooth or pressure measurement cavity leakage etc. Extreme condition, fast drainage avoids pressure accumulation, further improves working condition adaptability and safety.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport early warning, and in particular to a double-insurance overpressure prevention fluid control device. Background Technology

[0002] In high-pressure grouting systems, overpressure is the core risk causing equipment damage, media leakage, and even explosions. The overpressure protection performance of the fluid control device directly determines the system's operational safety. Current technologies rely on a single protective component for overpressure protection, lacking multiple layers of protection. Furthermore, existing devices lack emergency drainage designs; when the pressure relief channel is blocked or the protective component fails, the overpressure medium cannot be quickly discharged, easily leading to pressure buildup and further amplifying the risk of safety accidents. Therefore, there is an urgent need for a fluid control device that integrates multiple protections, is easy to maintain, offers strong protection, and is adaptable to complex operating conditions to address the shortcomings of existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a highly secure double-insurance anti-overpressure fluid control device.

[0004] The purpose of this utility model is achieved as follows: a double-insurance overpressure prevention fluid control device, characterized in that it includes a main valve body, on which a flow channel, a pressure relief channel, and a pressure measuring channel are provided; the pressure relief channel and the pressure measuring channel are connected to the flow channel; a safety diaphragm device is connected to the pressure relief channel; the pressure measuring channel is connected to the pressure measuring chamber; a measuring pipe extends outward from the bottom of the pressure measuring chamber; the end of the measuring pipe splits into two, which are respectively connected to a pressure switch and a pressure audible and visual alarm.

[0005] Preferably, the safety diaphragm device consists of a diaphragm seat and a safety diaphragm; the diaphragm seat is threadedly connected to the outlet of the pressure relief channel, the safety diaphragm is embedded in a sealing groove in the inner diameter of the diaphragm seat, and the other end of the diaphragm seat is connected to the pressure relief pipe.

[0006] Preferably, a control valve is provided between the pressure relief channel and the safety diaphragm device.

[0007] Preferably, the pressure measuring chamber is provided with a rubber air bladder, which is fixed in the pressure measuring chamber by a clamping ring, and the pressure measuring chamber is threadedly connected to the detection channel.

[0008] Preferably, the pressure switch is electrically connected to an external control module.

[0009] Preferably, both the main valve body and the pressure measuring chamber are provided with emergency liquid outlets.

[0010] Compared with the prior art, the advantages of this utility model are:

[0011] 1. A safety diaphragm is installed, which can provide emergency pressure relief when the internal pressure rises; if the safety diaphragm fails to function, the airbag in the pressure measuring chamber can provide a secondary warning, providing dual warning through "automatic control + light reminder"; the pressure switch is linked to the external control module to realize overpressure active shutdown, greatly improving safety;

[0012] 2. Both the main valve body and the pressure measuring chamber are equipped with emergency liquid outlets to quickly drain liquid and prevent pressure buildup in extreme situations such as poor pressure relief of the safety diaphragm or leakage of the pressure measuring chamber, thereby further improving the adaptability and safety of the working conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure inside the pressure measuring chamber of this utility model.

[0015] The components include: 1. Main valve body; 101. Flow channel; 102. Pressure relief channel; 103. Pressure measuring channel; 2. Safety diaphragm device; 201. Diaphragm seat; 202. Safety diaphragm; 3. Pressure measuring chamber; 4. Measuring pipeline; 5. Pressure switch; 6. Pressure audible and visual alarm; 7. Pressure relief pipeline; 8. Control valve; 9. Rubber airbag; 10. Pressure ring; 11. Emergency liquid outlet. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0017] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1-2 As shown, a dual-insurance overpressure prevention fluid control device includes a main valve body 1, which has a flow channel 101, a pressure relief channel 102, and a pressure measuring channel 103. The pressure relief channel 102 and the pressure measuring channel 103 are connected to the flow channel 101. A safety diaphragm device 2 is connected to the pressure relief channel 102. The pressure measuring channel 103 is connected to the pressure measuring chamber 3. A measuring pipe 4 extends outward from the bottom of the pressure measuring chamber 3. The end of the measuring pipe 4 splits into two, which are respectively connected to a pressure switch 5 and a pressure audible and visual alarm 6. This forms an automatic control plus light reminder and early warning mechanism to improve safety.

[0020] like Figure 1 As shown, the safety diaphragm device 2 consists of a diaphragm seat 201 and a safety diaphragm 202. The diaphragm seat 201 is threadedly connected to the outlet of the pressure relief channel 103. The safety diaphragm 201 is embedded in the sealing groove of the inner diameter of the diaphragm seat 202. The other end of the diaphragm seat 202 is connected to the pressure relief pipe 7, which facilitates quick disassembly and assembly of the safety diaphragm and shortens maintenance time.

[0021] like Figure 1 As shown, a control valve 8 is provided between the pressure relief channel 102 and the safety diaphragm device 2. The control valve is normally open, but can be manually closed in non-overpressure scenarios to prevent the medium from leaking from the pressure relief side and to enable the maintenance of the safety diaphragm.

[0022] like Figure 1-2 As shown, a rubber airbag 9 is provided inside the pressure measuring chamber 3. The rubber airbag 9 is fixed inside the pressure measuring chamber 3 by a clamping ring 10. The pressure measuring chamber and the detection channel are connected by threads. Pressure monitoring is achieved by squeezing the space inside the pressure measuring chamber by the airbag.

[0023] like Figure 1 As shown, pressure switch 5 is electrically connected to an external control module; when overpressure occurs, it can directly trigger actions such as stopping the system power source and switching the solenoid valve, thereby achieving active cut-off after overpressure.

[0024] like Figure 1As shown, both the main valve body 1 and the pressure measuring chamber 3 are equipped with emergency outlets 11. Both the main valve body and the pressure measuring chamber are equipped with emergency outlets. When the safety diaphragm fails to depressurize properly or the pressure measuring chamber leaks unexpectedly, the medium can be quickly discharged through the emergency outlets to avoid pressure buildup and secondary risks, thereby improving safety under extreme conditions.

[0025] The working principle of this invention is explained as follows: Fluid flows through the main channel in the flow channel. When the internal pressure is too high, the safety diaphragm ruptures, and the medium is discharged through the pressure relief channel and pipe. If the pressure continues to rise, an audible and visual warning is triggered, and the pressure switch linkage control module cuts off the power source.

[0026] An emergency outlet is provided to address occasional instances of poor pressure relief.

[0027] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A dual-insurance overpressure prevention fluid control device, characterized in that, The device includes a main valve body, which has a flow channel, a pressure relief channel, and a pressure measuring channel. The pressure relief channel and the pressure measuring channel are connected to the flow channel. A safety diaphragm device is connected to the pressure relief channel. The pressure measuring channel is connected to the pressure measuring chamber. A measuring pipe extends outward from the bottom of the pressure measuring chamber. The measuring pipe splits into two parts at its end, which are respectively connected to a pressure switch and a pressure audible and visual alarm.

2. The dual-insurance overpressure prevention fluid control device according to claim 1, characterized in that, The safety diaphragm device consists of a diaphragm seat and a safety diaphragm; the diaphragm seat is threadedly connected to the outlet of the pressure relief channel, the safety diaphragm is embedded in the sealing groove of the inner diameter of the diaphragm seat, and the other end of the diaphragm seat is connected to the pressure relief pipe.

3. The dual-insurance overpressure prevention fluid control device according to claim 2, characterized in that, A control valve is provided between the pressure relief channel and the safety diaphragm device.

4. The double-insurance anti-overpressure fluid control device according to claim 1, characterized in that, The pressure measuring chamber is equipped with a rubber air bladder, which is fixed in the pressure measuring chamber by a clamping ring. The pressure measuring chamber and the detection channel are connected by a thread.

5. The double-insurance overpressure prevention fluid control device according to claim 1, characterized in that, The pressure switch is electrically connected to an external control module.

6. The dual-insurance overpressure prevention fluid control device according to claim 1, characterized in that, Both the main valve body and the pressure measuring chamber are equipped with emergency liquid outlets.

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