Perfluorocontainer valve

Abstract

The utility model belongs to the container valve technical field, especially relates to a perfluorinated container valve, include: valve body, set up in the valve cavity of valve body and respectively with the import channel and export channel of valve cavity intercommunication, valve cover subassembly, valve core body, accommodate area two, pressure relief valve core, actuator, air inlet hole, liquid guide pipe, one end connects and fixes the inner edge of import channel import end, the other end extends outward to insert the liquid phase in the steel bottle inside, wherein, the radial outside of import channel import end is provided with the connecting portion that supplies steel bottle sleeve joint, and the gap that supplies gas phase passes is established between air inlet hole and steel bottle. The utility model has the advantages that: the setting of liquid guide pipe and air inlet hole realizes the separation type circulation of gas-liquid two-phase medium in steel bottle, makes the gas phase part in steel bottle not to be wasted, provides sustained, stable pressure for valve core body through air inlet hole, can satisfy container valve multiple opening and closing.

Description

Technical Field

[0001] This utility model relates to the field of container valve technology, and in particular to a perfluorinated container valve. Background Technology

[0002] Container valves are key components of pressure vessels (such as gas cylinders, reaction vessels, and fire extinguishing equipment), primarily used for sealing media, controlling media release, filling, and safety protection. In the field of fire protection technology, they are control valves installed at the outlet of storage cylinders, their function being to seal the cylinders under normal conditions and release extinguishing agents in case of fire.

[0003] In the existing technology, the extinguishing agent is usually stored in a gas-liquid two-phase state in the storage cylinder. The liquid phase is the main effective component of the extinguishing agent, and the gas phase is mainly used to maintain the balance pressure in the cylinder. When the container valve is opened to release the extinguishing agent, the gas and liquid phases of the extinguishing agent often mix together and are discharged through the outlet of the container valve at the same time, resulting in gas waste. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a perfluorinated container valve to solve the above problems.

[0005] The technical solution of this utility model is achieved as follows: a perfluorinated container valve, comprising: Valve body, valve cavity disposed within valve body, and inlet channel and outlet channel respectively connected to valve cavity; Valve cover assembly, the valve body upper end opening cover is provided with valve cover assembly; The valve core body is slidably sealed in the valve cavity. A receiving area is formed between the valve cover assembly and the valve core body. An elastic element is provided between the upper part of the valve core body and the valve cover assembly to cooperate with the pressure of the receiving area to drive the valve core body to open and close the outlet channel. The second receiving area is located inside the valve cover assembly. The bottom of the second receiving area is provided with a flow channel 1 that connects to the first receiving area and a flow channel 2 for air intake. The upper end of the second receiving area is provided with a pressure relief hole that connects to the outside. The pressure relief valve core is located within the second receiving area; The actuator, mounted on the valve cover assembly, is used to drive the pressure relief valve core to close the pressure relief hole and connect flow channel one and flow channel two, or close flow channel two and connect flow channel one and pressure relief hole. Also includes: An air inlet is located on one side of the inlet end of the inlet channel, and a flow channel three with a connecting flow channel two and an air inlet is located at the upper end of the valve body. The liquid guide tube has one end connected to the inner edge of the inlet end of the fixed inlet channel, and the other end extends outward to be inserted into the liquid phase inside the steel cylinder. The inlet channel has a connecting part for connecting the gas cylinder on the radial outer side, and there is a gap between the air inlet and the gas cylinder for the gas supply phase to pass through.

[0006] Furthermore, an internal thread is provided on the inner edge of the inlet end of the inlet channel, and an external thread that mates with the internal thread is provided on the radial outer side of one end of the liquid guide tube.

[0007] Furthermore, the connecting part is an external thread two that is opened on the radially outer side of the inlet end of the inlet channel.

[0008] Furthermore, the valve core body includes: The core body, and the end of the core body radially outward and close to the valve cover assembly, is fitted with a first sealing ring; The core screw is threaded onto the end of the core facing the inlet channel. Among them, on the shank of the core screw, a sealing ring, a gasket and a sealing pad are sequentially fitted along the head of the core screw towards the core, and the sealing ring, gasket and sealing pad are all sandwiched between the head of the core screw and the end face of the core.

[0009] Furthermore, the valve cover assembly includes: The valve cover is sealed to the upper opening of the valve body, and an installation hole is provided at the upper end of the valve cover. An adjusting bolt is threaded into a mounting hole. The lower end of the adjusting bolt is recessed to form a first receiving groove. A receiving area two is formed between the first receiving groove and the bottom of the mounting hole. The pressure relief hole is located at the bottom of the first receiving groove, and the pressure relief valve core extends at least partially out of the pressure relief hole.

[0010] Furthermore, the pressure relief valve core also includes: The second elastic element is connected between the pressure relief valve core and the bottom of the second receiving area to apply a force to the pressure relief valve core to block the pressure relief hole; The pressure relief valve core has a gap between its radial outer side and the wall of the first receiving groove.

[0011] Furthermore, a second receiving groove is formed inward at the upper end of the core, and a third receiving groove is formed inward at the lower end of the valve cover. An elastic element is connected between the second receiving groove and the third receiving groove.

[0012] Furthermore, the valve body also includes: The mounting groove is located on one side of the valve body and is connected to the flow channel in three ways. The pressure gauge is connected and fixed to the mounting slot.

[0013] The beneficial effects of this utility model are as follows: The design of the liquid guide tube and the air inlet enables the separate flow of the gas and liquid phases inside the cylinder, ensuring that the gas phase inside the cylinder is not wasted. The air inlet provides continuous and stable pressure to the valve core, which can meet the requirements of multiple opening and closing of the container valve. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a cross-sectional view of the container valve according to a specific embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the container valve and the external steel cylinder in a specific embodiment of this utility model. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] Example 1:

[0019] like Figures 1 to 2 As shown, this utility model discloses a perfluorinated container valve, which includes: Valve body 1, valve cavity 2 disposed within valve body 1, and inlet channel 200 and outlet channel 300 respectively connected to valve cavity 2; Valve cover assembly 4, the valve body 1 has an opening at the upper end of the valve cover assembly 4, specifically, the valve cavity 10 has an opening that extends upwards; The valve core 5 is slidably sealed in the valve cavity 2. The valve cover assembly 4 and the valve core 5 are spaced to form a receiving area 500. An elastic element 501 is provided between the upper part of the valve core 5 and the valve cover assembly 4 to cooperate with the pressure of the receiving area 500 to drive the valve core 5 to open and close the outlet channel 300. The second receiving area 6 is located inside the valve cover assembly 4. The bottom of the second receiving area 6 is provided with a flow channel 600 that connects to the first receiving area 500 and a flow channel 601 for air intake. The upper end of the second receiving area 6 is provided with a pressure relief hole 702 that connects to the outside. The pressure relief valve core 8 is located within the receiving area 2 6; The actuator, mounted on the valve cover assembly 4, is used to drive the pressure relief valve core 8 to close the pressure relief hole 702 and connect the flow channel 1 600 and the flow channel 2 601, or close the flow channel 2 601 and connect the flow channel 1 600 and the pressure relief hole 702. Also includes: An air inlet 80 is provided on one side of the inlet end of the inlet channel 200, and a flow channel 3 800 is provided on the upper end of the valve body 1, which is connected to the flow channel 2 601 and the air inlet 80. The liquid guide tube 9 is connected at one end to the inner edge of the inlet end of the fixed inlet channel 200, and at the other end extends outward to be inserted into the liquid phase inside the steel cylinder. Among them, the radial outer side of the inlet end of the inlet channel 200 is provided with a connecting part for the cylinder to be fitted, and the air inlet 80 and the cylinder are provided with a gap for the gas supply phase to pass through. In the above technical solution, the actuator is an electromagnetic actuator, which drives the pressure relief valve core to press down to open the pressure relief port and block the flow channel two through an electromagnet. This is existing technology, and the specific structure will not be described further. In the above technical solution, the liquid guide tube is a flexible tube, which can more flexibly fit the liquid phase inside the cylinder, i.e., the extinguishing agent area. In the above technical solution, the elastic element is a spring; By adopting the above technical solution, the liquid guide tube and the air inlet hole enable the separate flow of the gas and liquid two-phase media in the cylinder, so that the gas phase in the cylinder will not be wasted. The air inlet hole provides continuous and stable pressure to the valve core, which can meet the requirements of multiple opening and closing of the container valve. The gap between the air inlet and the gas cylinder allows the gaseous medium to enter the flow channel three separately, and then enter the receiving area two and the receiving area one through the flow channel two. It is used only as a pressure source to drive the valve core to open and close, thus avoiding waste caused by the gas phase being discharged along with the liquid phase.

[0020] Example 2:

[0021] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0022] Furthermore, the inner edge of the inlet end of the inlet channel 200 is provided with an internal thread 10, and the radial outer side of one end of the liquid guide tube 9 is provided with an external thread that mates with the internal thread 10.

[0023] By adopting the above technical solution, no additional fasteners are required. During installation, it is only necessary to screw the external thread of the liquid guide tube into the internal thread of the inlet channel to complete the fixation. The operation is convenient and the connection is stable.

[0024] Example 3:

[0025] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0026] Furthermore, the connecting part is an external thread 211 that is opened on the radially outer side of the inlet end of the inlet channel 200.

[0027] By adopting the above technical solution, it can be directly matched with the internal thread structure of the existing conventional gas cylinder outlet without the need for additional adapters or matching components. Operators only need to screw the threads together to quickly connect the valve to the gas cylinder.

[0028] Example 4:

[0029] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0030] Furthermore, the valve core 5 includes: A first sealing ring 503 is fitted on the radial outer side of the core 502 and at one end near the valve cover assembly 4; The core screw 504 is threaded onto the end of the core 502 facing the inlet channel 200; Among them, on the shank of the core screw 504, a sealing ring 505, a gasket 506 and a sealing pad 507 are sequentially sleeved along the head of the core screw 504 toward the core 502, and the sealing ring 505, gasket 506 and sealing pad 507 are all sandwiched between the head of the core screw 504 and the end face of the core 502.

[0031] By adopting the above technical solution, the setting of the first sealing ring prevents the gaseous medium in the containment area from leaking out, and at the same time prevents the liquid medium from entering the containment area when the container valve is opened. Multiple sealing elements, including core screws, sealing rings, gaskets, and sealing pads, are used to prevent leakage of liquid media when the container valve is not open.

[0032] Example 5:

[0033] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] Furthermore, the valve cover assembly 4 includes: The valve cover 400 is sealed to the upper opening of the valve body 1, and the upper end of the valve cover 400 is provided with a mounting hole; Adjusting bolt 401 is threaded into the mounting hole. The lower end of adjusting bolt 401 is recessed to form a first receiving groove. A receiving area 26 is formed between the first receiving groove and the bottom of the mounting hole. The pressure relief hole 702 is located at the bottom of the first receiving groove, and the pressure relief valve core 8 extends at least partially out of the pressure relief hole 702.

[0035] By adopting the above technical solution, the sealing connection of the valve cover ensures the overall sealing performance of the valve, and the threaded connection between the adjusting bolt and the valve cover mounting hole allows the adjusting bolt to be rotated and adjusted in position within the mounting hole according to actual needs.

[0036] Example 6:

[0037] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Furthermore, the pressure relief valve core 8 also includes: The second elastic element is connected between the pressure relief valve core and the bottom of the second receiving area 6, and is used to apply a force to the pressure relief valve core 8 to block the pressure relief hole 702; The pressure relief valve core 8 has a gap between its radial outer side and the wall of the first receiving groove.

[0039] In the above technical solution, the second elastic element is a spring; By adopting the above technical solution, the elastic element 2 applies a pre-tightening force to the pressure relief valve core, so that the container valve can fit tightly against the lower orifice of the pressure relief hole under normal conditions, thus preventing leakage of gaseous medium. The gap setting allows the gaseous medium in the receiving area to flow to the pressure relief hole through the gap when the pressure relief valve core moves downward through the actuator, thus avoiding obstruction of the gaseous medium flow and affecting the response speed of the valve core.

[0040] Example 7:

[0041] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] Furthermore, the upper end of the core 502 is recessed to form a second receiving groove 508, the lower end of the valve cover 400 is recessed to form a third receiving groove 402, and the elastic element 501 is connected between the second receiving groove 508 and the third receiving groove 402.

[0043] By adopting the above technical solution, the two ends of the elastic element can be limited to prevent the elastic element from shifting laterally or tilting during compression or extension, and ensure that the elastic element can always apply force along the axial direction of the valve core, so that the valve core can slide stably in the valve cavity.

[0044] Example 8:

[0045] This embodiment provides a perfluorinated container valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0046] Furthermore, valve body 1 also includes: The mounting groove 12 is located on the outer side of the valve body 1 and is connected to the flow channel 800. A pressure gauge (not shown in the figure) is connected and fixed to the mounting slot 12.

[0047] By adopting the above technical solution, real-time monitoring of the gas phase pressure inside the gas cylinder was achieved.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A perfluorinated container valve, comprising: Valve body (1), valve cavity (2) disposed in valve body (1), and inlet channel (200) and outlet channel (300) respectively connected to valve cavity (2); Valve cover assembly (4), the valve body (1) has an opening cover with valve cover assembly (4). The valve core (5) is slidably sealed in the valve cavity (2). A receiving area (500) is formed between the valve cover assembly (4) and the valve core (5). An elastic element (501) is provided between the upper part of the valve core (5) and the valve cover assembly (4) to cooperate with the pressure of the receiving area (500) to drive the valve core (5) to open and close the outlet channel (300). The second receiving area (6) is located inside the valve cover assembly (4). The bottom of the second receiving area (6) is provided with a flow channel (600) that connects to the first receiving area (500) and a flow channel (601) for air intake. The upper end of the second receiving area (6) is provided with a pressure relief hole (702) that connects to the outside. The pressure relief valve core (8) is located in the second accommodating area (6); The actuator is mounted on the valve cover assembly (4) to drive the pressure relief valve core (8) to close the pressure relief hole (702) and connect the flow channel one (600) and the flow channel two (601), or close the flow channel two (601) and connect the flow channel one (600) and the pressure relief hole (702). Its characteristic is that it further includes: An air inlet (80) is opened on one side of the inlet end of the inlet channel (200), and a flow channel (800) with a connecting flow channel two (601) and an air inlet (80) is opened at the upper end of the valve body (1). The liquid guide tube (9) is connected at one end to the inner edge of the inlet end of the fixed inlet channel (200), and at the other end extends outward to be inserted into the liquid phase inside the steel cylinder; Among them, the radial outer side of the inlet end of the inlet channel (200) is provided with a connecting part for the steel cylinder to be fitted, and the air inlet (80) and the steel cylinder are provided with a gap for the gas supply phase to pass through.

2. The perfluorinated container valve according to claim 1, characterized in that, The inner edge of the inlet end of the inlet channel (200) is provided with an internal thread (10), and the outer radial side of one end of the liquid guide tube (9) is provided with an external thread that matches the internal thread (10).

3. The perfluorinated container valve according to claim 1, characterized in that, The connecting part is an external thread two (11) opened on the radially outer side of the inlet end of the inlet channel (200).

4. A perfluorinated container valve according to claim 1, characterized in that, Valve core (5) includes: The core (502) is fitted with a first sealing ring (503) on its radial outer side and near the end of the valve cover assembly (4). The core screw (504) is threaded to one end of the core (502) facing the inlet channel (200). Among them, on the shank of the core screw (504), a sealing ring (505), a washer (506) and a sealing gasket (507) are sequentially sleeved along the head of the core screw (504) towards the core (502), and the sealing ring (505), the washer (506) and the sealing gasket (507) are all sandwiched between the head of the core screw (504) and the end face of the core (502).

5. A perfluorinated container valve according to claim 4, characterized in that, Valve cover assembly (4) includes: The valve cover (400) is sealed to the upper opening of the valve body (1), and the upper end of the valve cover (400) is provided with an installation hole; Adjusting bolt (401) is threaded into the mounting hole. The lower end of adjusting bolt (401) is recessed to form a first receiving groove. The first receiving groove and the bottom of the mounting hole form a receiving area two (6). The pressure relief hole (702) is located at the bottom of the first receiving groove, and the pressure relief valve core (8) extends at least partially out of the pressure relief hole (702).

6. A perfluorinated container valve according to claim 1, characterized in that, The pressure relief valve core (8) also includes: The second elastic element is connected between the pressure relief valve core and the bottom of the second receiving area (6) to apply a force to the pressure relief valve core (8) to block the pressure relief hole (702); Among them, a gap is provided between the radial outer side of the pressure relief valve core (8) and the wall of the first receiving groove.

7. A perfluorinated container valve according to claim 5, characterized in that, The upper end of the core (502) is recessed to form a second receiving groove (508), and the lower end of the valve cover (400) is recessed to form a third receiving groove (402). An elastic element (501) is connected between the second receiving groove (508) and the third receiving groove (402).

8. A perfluorinated container valve according to claim 1, characterized in that, The valve body (1) also includes: The mounting groove (12) is located on the outside of the valve body (1) and is connected to the flow channel three (800); The pressure gauge is connected and fixed to the mounting slot (12).

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