A leak detection and alarm type automatic valve

Abstract

The present invention relates to the technical field of valves and discloses a liquid leakage detection and alarm type automatic valve, which includes: a valve body shell and connection ports installed through the left and right sides thereof, wherein an opening and closing valve core for controlling the opening and closing of the connection ports is movably installed inside the valve body shell; it further includes: a sealing cylinder movably installed at the center of the top of the valve body shell, wherein an adjusting rod is installed through the lower end inside the sealing cylinder, and a propulsion bracket is arranged between the adjusting rod and the opening and closing valve core; a movable port and a pressure gauge, which are installed on the top of the valve body shell, and the movable port adjusts the unidirectional introduction of external gas into the valve body shell for pressure accumulation. This liquid leakage detection and alarm type automatic valve can synchronously detect and alarm the sealing performance of the valve when the valve starts and stops to close and block and control the liquid flow line, with high detection efficiency and stable accuracy; under the action of the pressure gauge, it constantly judges the internal pressure and sealing performance of the valve, and issues liquid leakage and sealing performance warnings through a supporting warning device.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and specifically to a liquid leakage detection and alarm type automatic valve. Background Art

[0002] A valve is a device for controlling the blocking, dredging, and guiding control of substances such as liquids or gases inside various pipelines and equipment. The setting and installation of valves can be selected according to the requirements of human use and installed at the node positions of pipeline connections or transfers to achieve the effect of controlling the flow rate or changing the flow rate distribution.

[0003] In the use of valves, according to the different media such as controlling liquids, gases, and gases or fluids containing solid powders, there are significant differences in their types and sizes. For example, in the existing liquid conveying valves, they achieve the guiding flow control and flow rate distribution of liquids inside pipelines and equipment. However, during their long-term use, the aging and wear of the valves will affect their use functions and effects. In order to reduce the impact of valve liquid leakage caused by aging and wear on the normal use function of the valves, the existing valves are provided with liquid leakage warning components. Without affecting the normal use function of the valves, the valves can provide timely warnings to users when the sealing performance is damaged due to aging and wear, avoiding irreversible losses caused by leakage problems due to sealing damage.

[0004] For the existing valves with liquid leakage warning and alarm functions, their use functions are relatively single. They judge whether the use function of the valve is damaged by whether there is liquid leakage, thereby forming an alarm warning operation. In this process, when there is slight and slow liquid leakage, the liquid leakage efficiency is low, which will cause the liquid leakage detection of the detection component to be missed due to phenomena such as humidity or frost in the environment where the valve is located, resulting in liquid leakage inside the pipeline without timely warning, and there are potential safety hazards in use.

[0005] In view of the above problems, there is an urgent need to innovate and design on the basis of the original liquid leakage detection automatic valve. Summary of the Invention

[0006] The purpose of the present invention is to provide a liquid leakage detection and alarm type automatic valve to solve the problem that the existing liquid leakage detection automatic valve in the above background art is greatly affected by external factors and is prone to missing detection and alarm when there is slight and slow liquid leakage.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A liquid leakage detection and alarm type automatic valve, comprising:

[0008] A valve body shell and connection ports installed through the left and right sides thereof, wherein an opening and closing valve core for controlling the opening and closing of the connection ports is also movably installed inside the valve body shell;

[0009] It also includes: a sealing cylinder, which is movably installed at the center of the top of the valve body shell, wherein an adjusting rod is installed through the lower end of the sealing cylinder, and a propulsion bracket is provided between the adjusting rod and the opening and closing valve core;

[0010] The movable port and the pressure gauge are installed on the top of the valve body shell. The movable port adjusts the one-way introduction of external gas into the valve body shell to accumulate pressure.

[0011] Preferably, an elastic sealing strip is provided at the outer edge of the opening and closing valve core, and the opening and closing valve core and the inner wall of the valve body shell are arranged in a fitting sliding seal;

[0012] At the same time, an extrusion seal is set at the butt edge of the symmetrically distributed opening and closing valve core.

[0013] Preferably, the sealing cylinder and the valve body shell are relatively rotating structures with a sealing arrangement, wherein the sealing cylinder and the adjusting rod are vertically coaxially distributed, and the bottom outlet of the sealing cylinder is threadedly connected to the outer wall of the middle section of the adjusting rod.

[0014] Preferably, the upper half and the lower half of the sealing cylinder are arranged to rotate relatively, wherein a rotating frame is also fixed on the outer wall of the lower half of the sealing cylinder.

[0015] Preferably, the upper section, middle section and lower section of the adjusting rod are respectively arranged in the shape of a regular hexagonal prism, a threaded shape and a threaded type, wherein the upper section, the middle section and the lower section are connected by smooth sections at two adjacent sections;

[0016] The regular hexagonal prism structure of the upper section of the adjusting rod is radially engaged with the limiting sleeve on the inner wall of the lower end of the sealing cylinder, and the thread of the lower section of the adjusting rod is connected with the middle part of the propulsion bracket through a through thread.

[0017] Preferably, the inner cross-section of the limiting sleeve is configured as a regular polygonal hollow prism, wherein the number of prisms is an even number, and the number of prisms of the limiting sleeve is greater than the number of prisms of the upper section of the sealing tube.

[0018] Preferably, the edge bracket of the propulsion bracket is hinged and rotatable, wherein the propulsion bracket is rotatably connected to the back side of the opening and closing valve core.

[0019] Preferably, a detachably installed sealing cap is provided on the movable port, and the movable port is threadedly connected to the external gas delivery pipeline.

[0020] Preferably, a pressure relief seal is also provided at the bottom of the valve body shell, and the pressure relief seal is vertically symmetrically arranged with respect to the valve body shell, wherein the connection between the pressure relief seal and the valve body shell is a "V"-shaped concave setting, and an adjusting component for controlling the opening and closing of the pressure relief seal is provided on the pressure relief seal.

[0021] Preferably, the adjusting base at the center of the bottom of the valve body shell is vertically coaxially distributed with the adjusting rod, wherein the adjusting base, the valve body shell and the elastic sealing sleeve all form a relatively rotating structure, and the elastic sealing sleeve is sleeved at the bottom of the rotating connection between the adjusting base and the valve body shell;

[0022] The adjusting base is electromagnetically connected to the adjusting rod, and the adjusting base and the valve body shell are arranged to be lifted and lowered.

[0023] Compared with the prior art, the invention has the following beneficial effects: the automatic valve for liquid leakage detection and alarm can simultaneously detect and alarm the valve sealing when the valve is started, stopped and closed, and the liquid circulation line is blocked and controlled, with high detection efficiency and stable accuracy. The specific contents are as follows:

[0024] 1. Through the assembly of the sealing cylinder and the adjusting rod, the valve core can be rotated to close and open the valve when the sealing cylinder controls the lifting and rotation of the adjusting rod. When the valve blocks the internal liquid flow channel, air or liquid is injected through the active port to increase the pressure. The pressure and sealing of the valve are constantly judged under the action of the pressure gauge. When the sealing problem causes leakage and the air pressure changes, the matching warning device will issue a leakage and sealing warning.

[0025] Furthermore, when the valve is opened to the maximum state by the opening and closing valve core and the maximum fluid delivery efficiency is achieved, the opening and closing valve core can isolate the internal structure of the valve on it, and use the valve body shell under the opening and closing valve core to transport the fluid, thereby improving the fluid delivery efficiency and preventing the fluid from swirling inside the valve and affecting the stability of the valve itself;

[0026] 2. A pressure relief seal and its supporting adjustment components are provided so that the pressure relief seal can be selectively opened. The pressure relief seal can be provided as a sealing plate installed by bolts or as an electrically controlled small magnetic valve. The setting of the pressure relief seal can selectively discharge the residual solution inside the valve after the valve is closed, thereby facilitating the detection of the internal pressure accumulation and pressure value changes, and improving the continuous detection of leakage sealing and alarm operation;

[0027] Furthermore, by providing a pressure relief seal, after the valve is closed and the residual fluid inside the valve is discharged, high-pressure gas or antifreeze solution can be introduced. In a low-temperature environment, this can effectively prevent the internal freezing of the valve caused by the stagnant flow of fluid, which can affect subsequent activation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the front plan view of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the present invention when viewed from the front;

[0030] Figure 3Schematic diagram of the front sectional top view of the present invention;

[0031] Figure 4 Schematic diagram of the front sectional bottom view of the present invention;

[0032] Figure 5 Schematic diagram of the overall structure of the sealing cylinder and the adjusting rod of the present invention;

[0033] Figure 6 Exploded view of the sealing cylinder and the adjusting rod of the present invention;

[0034] Figure 7 Schematic diagram of the sectional structure of the lower section of the sealing cylinder of the present invention;

[0035] Figure 8 Schematic diagram of the butt joint structure of the adjusting rod and the limit sleeve of the present invention;

[0036] Figure 9 Schematic diagram of the connection structure between the opening and closing valve core and the valve body shell of the present invention;

[0037] Figure 10 Schematic diagram of the installation structure of the adjusting base of the present invention;

[0038] Figure 11 Schematic diagram of the pressure relief sealing structure of the present invention.

[0039] In the figure: 1. Valve body shell; 2. Connection port; 3. Opening and closing valve core; 4. Sealing cylinder; 401. Rotating frame; 5. Adjusting rod; 501. Limit sleeve; 6. Propelling bracket; 7. Movable port; 8. Pressure gauge; 9. Pressure relief seal; 901. Sealing plate; 10. Adjusting base; 1001. Elastic sealing sleeve. Detailed implementation method

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment 1: Please refer to Figures 1-11 , the present invention provides a technical solution: A liquid leakage detection and alarm type automatic valve, including:

[0042] The valve body shell 1 and the connecting ports 2 installed through it on its left and right sides, wherein an on-off valve core 3 for controlling the opening and closing of the connecting port 2 is also movably installed inside the valve body shell 1; an elastic sealing strip is provided at the outer edge of the on-off valve core 3, and the on-off valve core 3 and the inner wall of the valve body shell 1 are arranged in a fitting sliding seal; at the same time, an extrusion seal is arranged at the butt edge of the symmetrically distributed on-off valve core 3; a sealing cylinder 4 is movably installed at the top center of the valve body shell 1, wherein an adjusting rod 5 is installed through the lower end of the sealing cylinder 4, and a propulsion bracket 6 is arranged between the adjusting rod 5 and the on-off valve core 3; the edge bracket of the propulsion bracket 6 is arranged in an articulated rotation, wherein the propulsion bracket 6 is connected to the back of the on-off valve core 3 For rotational connection; in the technical scheme, by setting the opening and closing valve core 3, the sealing cylinder 4 and the adjusting rod 5 are used to jointly adjust the position movement of the push bracket 6, and the rotation and angle adjustment of the installation connection of the push bracket 6 itself are used to make the push bracket 6 push the opening and closing valve core 3 to rotate, so as to seal and open the connecting port 2 and the through-hole of the valve body shell 1, and change the maximum flow rate of the fluid inside the valve body shell 1. The operation is convenient. At the same time, the assembly and structural setting of the sealing cylinder 4 and the adjusting rod 5 can further increase the internal space of the valve, facilitate manufacturing and processing, and at the same time, in the subsequent valve leakage and sealing detection, it can play a good supporting effect.

[0043] In the above scheme, the symmetrical setting of the opening and closing valve core 3 and the sealed edging setting, when the valve flow is fully opened to the maximum value, the opening and closing valve core 3 can isolate the sealing cylinder 4 and the propulsion bracket 6 components above it, forming a fluid flow channel inside the valve body shell 1 below the opening and closing valve core 3, so that when the fluid circulates inside the valve body shell 1, it will not affect the backflow and swirl, thereby improving the fluid transportation efficiency. Furthermore, it can also avoid the damage of the sealing cylinder 4, the propulsion bracket 6, the adjusting rod 5 and other components caused by the fluid during the transportation process.

[0044] In the above technical solution, the movable port 7 and the pressure gauge 8 are installed on the top of the valve body shell 1, and the movable port 7 adjusts the one-way introduction of external gas into the valve body shell 1 to store pressure; a detachable sealing cap is provided on the movable port 7, and the movable port 7 is threadedly connected to the external gas delivery pipeline; a pressure relief seal 9 is also provided at the bottom of the valve body shell 1, and the pressure relief seal 9 is vertically symmetrically arranged with respect to the valve body shell 1, wherein the connection between the pressure relief seal 9 and the valve body shell 1 is a "V"-shaped concave setting, and an adjusting component for controlling its opening and closing is provided on the pressure relief seal 9;

[0045] When closing the valve, through the setting of the movable port 7, if there is still fluid inside the valve body housing 1, a one-way liquid or gas pressurizing device connected through the movable port 7 can be used to unidirectionally introduce a liquid or gas that is insoluble in the original fluid into the valve body housing 1, forming a pressure accumulation inside the valve body housing 1. Since the opening and closing valve core 3 has formed a sealed state that blocks the inside of the valve body housing 1 at this time, when pressure relief occurs due to leakage inside the valve body housing 1, the pressure gauge 8 and its connected alarm device can issue a timely warning, converting the leakage liquid alarm into an alarm warning of pressure change. It can achieve the effect of alarm processing in a timely and efficient manner even when the valve leaks slightly and slowly. To improve the effect of its alarm warning, before pressurizing the inside of the valve body housing 1 through the movable port 7, the residual fluid inside the valve body housing 1 is discharged through the pressure relief seal 9. Due to the sealing effect of the opening and closing valve core 3, discharging the residual fluid inside the valve body housing 1 will not cause leakage of the fluid in the pipeline. The adjustment component on the pressure relief seal 9 can be set as a sealing plate 901 installed and positioned by bolts, or it can also be an electromagnetic control valve body structure to achieve the effect of selectively discharging the fluid inside the valve body housing 1.

[0046] Furthermore, in this technical solution, as Figures 4-8 shown, the upper half and the lower half of the sealing cylinder 4 are relatively rotatably arranged. A rotating frame 401 is also fixed on the outer wall of the lower half of the sealing cylinder 4. The upper, middle, and lower sections of the adjusting rod 5 are respectively arranged as a regular hexagonal prism, a threaded shape, and a threaded type. The adjacent parts between the upper, middle, and lower sections are connected by smooth sections. The upper regular hexagonal prism structure of the adjusting rod 5 is radially engaged with the limiting sleeve 501 on the inner wall of the lower end of the sealing cylinder 4. The lower threaded part of the adjusting rod 5 is threadedly connected through the middle part of the propulsion bracket 6. The internal cross-section of the limiting sleeve 501 is set as a regular polygon hollow prism, the number of prism sides is even, and the number of prism sides of the limiting sleeve 501 is greater than the number of prism sides of the upper section of the sealing cylinder 4. The adjusting base 10 at the center of the bottom of the valve body housing 1 is vertically coaxially distributed with the adjusting rod 5. The adjusting base 10 forms a relatively rotatable structure with both the valve body housing 1 and the elastic sealing sleeve 1001. The elastic sealing sleeve 1001 is sleeved at the bottom of the rotating connection between the adjusting base 10 and the valve body housing 1. And the adjusting base 10 is electromagnetically magnetically connected to the adjusting rod 5, and the adjusting base 10 and the valve body housing 1 are arranged for lifting and lowering.

[0047] When using the opening and closing valve core 3 for closing, as Figure 4As shown in the figure, first, by rotating the sealing cylinder 4, the sealing cylinder 4 rotates first. Under the action of the threaded connection between the middle section of the adjusting rod 5 and the bottom outlet of the sealing cylinder 4, the adjusting rod 5 first maintains a vertical downward movement, driving the propulsion bracket 6 thereon to move downward synchronously, closing the opening and closing valve core 3 to the first stage. At the same time, the middle section of the adjusting rod 5 loses the threaded connection with the sealing cylinder 4, and the lower end of the adjusting rod 5 is electromagnetically adsorbed to the adjusting base 10, pulling the adjusting rod 5 downward, so that the prism structure of the upper section of the adjusting rod 5 is introduced into the internal limiting sleeve 501. Under the radial engagement of the limiting sleeve 501, the sealing cylinder 4 and the adjusting rod 5 rotate synchronously. During the rotation of the adjusting rod 5, the propulsion bracket 6 threadedly connected to its lower section moves downward independently. The propulsion bracket 6 is fully unfolded, and the opening and closing valve core 3 is closed to the second state, completely sealing the inside of the valve body shell 1; during the electromagnetic adsorption of the lower end of the adjusting rod 5 to the adjusting base 10 and the synchronous rotation of the sealing cylinder 4 and the adjusting rod 5, the adjusting base 10 rotates synchronously. The adjusting base 10 is installed in a liftable and rotatable manner, and its lifting is positioned by the elastic sealing sleeve 1001, and the rotation can be realized by the sealing bearing and the energized slip ring assembly, realizing the rotation, lifting and energization operations.

[0048] Similarly, when it is necessary to realize the reverse movement of the adjusting rod 5 to drive the opening of the opening and closing valve core 3, by changing the reverse magnetism of the adjusting base 10, the adjusting rod 5 can be pushed upward by the magnetic repulsion force, disconnecting the radial engagement connection state between the prism structure of the upper section of the adjusting rod 5 and the inner wall of the limiting sleeve 501, and making the threads in the middle section of the adjusting rod 5 opposite to the threads of the sealing cylinder 4, achieving the upward movement reset of the adjusting rod 5 under the action of the threaded connection.

[0049] Embodiment 2: On the basis of Embodiment 1, the pressure relief and sealing port 9 in the present invention can discharge the accumulated fluid inside the valve body shell 1, improving the accuracy of the liquid leakage alarm warning. At the same time, the setting of the movable port 7 can introduce external pressurized gas. Therefore, when the valve is used in a cold environment and needs to be in a blocked state for fluid cutoff, to prevent the inside of the valve from freezing, the liquid is discharged through the pressure relief and sealing port 9, and the antifreeze or gas is introduced through the movable port 7 to completely discharge the fluid inside the valve body shell 1, maintaining the antifreeze protection or dry state, which can achieve the antifreeze use of the valve, and when the blocking part of the opening and closing valve core 3 freezes, it can quickly and accurately defrost and apply.

[0050] Furthermore, when the pressure relief and sealing port 9 completely discharges the accumulated fluid inside the valve body shell 1, components such as a liquid sensor can be installed at the bottom position of the pressure relief and sealing port 9. Due to the dryness of the valve body shell 1 and the concave setting of the position where the pressure relief and sealing port 9 is located, when the valve leaks, the leaked fluid converges to the bottom of the pressure relief and sealing port 9, and an alarm warning is given under liquid induction.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A liquid leakage detection and alarm type automatic valve, comprising: A valve body shell (1) and connection ports (2) installed through the left and right sides thereof, wherein an opening and closing valve core (3) for controlling the opening and closing of the connection ports (2) is also movably installed inside the valve body shell (1); It is characterized in that it further comprises: A sealing cylinder (4), movably installed at the center of the top of the valve body shell (1), wherein an adjusting rod (5) is installed through the lower end inside the sealing cylinder (4), and a propulsion bracket (6) is arranged between the adjusting rod (5) and the opening and closing valve core (3); The upper, middle and lower sections of the adjusting rod (5) are respectively provided with a regular hexagonal prism, a threaded shape and a threaded type, and the adjacent two of the upper, middle and lower sections are connected by smooth sections; Among them, the upper section regular hexagonal prism structure of the adjusting rod (5) is radially engaged with the limiting sleeve (501) on the inner wall of the lower end of the sealing cylinder (4), and the lower section thread of the adjusting rod (5) is in threaded connection with the middle part of the propulsion bracket (6) through; The opening and closing valve core (3) is used to realize the complete sealing control inside the valve body shell (1); A movable port (7) and a pressure gauge (8), which are installed on the top of the valve body shell (1), and the movable port (7) adjusts the one-way introduction of external gas into the valve body shell (1) for pressure accumulation.

2. The leak detection and alarm type automatic valve according to claim 1, wherein: An elastic sealing strip is arranged at the outer edge of the opening and closing valve core (3), and the opening and closing valve core (3) is in sliding sealing fit with the inner wall of the valve body shell (1); At the same time, the butting edges of the symmetrically distributed opening and closing valve cores (3) are arranged in an extrusion seal.

3. The leak detection and alarm type automatic valve according to claim 1, characterized in that: The sealing cylinder (4) and the valve body shell (1) are a relatively rotating structure with a sealed setting, wherein the sealing cylinder (4) and the adjusting rod (5) are vertically coaxially distributed, and the bottom outlet of the sealing cylinder (4) is in threaded connection with the outer wall of the middle section of the adjusting rod (5).

4. The liquid leakage detection and alarm type automatic valve according to claim 3, characterized in that: The upper half and the lower half of the sealing cylinder (4) are relatively rotatably arranged, and a rotating frame (401) is also fixed on the outer wall of the lower half of the sealing cylinder (4).

5. The leak detection and alarm type automatic valve according to claim 1, wherein: The internal cross-section of the limiting sleeve (501) is set as a regular polygon hollow prism shape, wherein the number of prism bars is an even number, and the number of prism bars of the limiting sleeve (501) is greater than the number of prism bars of the upper section of the sealing cylinder (4).

6. The leak detection and alarm type automatic valve according to claim 1, characterized in that: The edge brackets of the propulsion bracket (6) are arranged in a hinged rotation setting, and the propulsion bracket (6) is rotatably connected to the back of the opening and closing valve core (3).

7. The leak detection and alarm type automatic valve according to claim 1, characterized in that: A detachable sealing cap is arranged on the movable port (7), and the movable port (7) is threadedly butt-connected and installed with an external gas conveying pipeline.

8. The leak detection and alarm type automatic valve according to claim 1, wherein: A pressure relief seal (9) is further arranged at the bottom of the valve body shell (1), and the pressure relief seal (9) is vertically symmetrically arranged with respect to the valve body shell (1), wherein the connection part of the pressure relief seal (9) and the valve body shell (1) is set as a "V" - shaped concave, and an adjusting component for controlling its opening and closing is arranged on the pressure relief seal (9).

9. The leak detection and alarm type automatic valve according to claim 1, characterized in that: An adjusting base (10) at the center of the bottom of the valve body shell (1) is vertically coaxially distributed with the adjusting rod (5), wherein the adjusting base (10) and the valve body shell (1) and the elastic sealing sleeve (1001) both form a relatively rotating structure, and the elastic sealing sleeve (1001) is sleeved at the bottom of the rotating connection part of the adjusting base (10) and the valve body shell (1); Moreover, the adjusting base (10) is electromagnetically magnetically connected to the adjusting rod member (5), and the adjusting base (10) is arranged to be lifted and lowered with respect to the valve body housing (1).

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