Exhaust valve with liquid level gauge

Abstract

This utility model relates to the field of exhaust valve technology, specifically an exhaust valve with a liquid level gauge, comprising a housing, an exhaust mechanism, and a liquid level monitoring mechanism. The housing has an inlet at its bottom, a flange around its bottom edge, and an end cap bolted to its top. The exhaust mechanism includes: an exhaust port at the top of the end cap; a mounting bracket fixed to the top of the end cap; a lever hinged to the mounting bracket by a pin; a float connected to the distal end of the lever; and a conical sealing rod at the proximal end of the lever for sealing the exhaust port. The liquid level monitoring mechanism includes: an opening at the top of the housing sidewall; and a liquid level gauge located outside the opening. This facilitates the detection of abnormal liquid levels, helping personnel to troubleshoot problems early and preventing leakage of the medium inside the pipe due to malfunction of the exhaust structure, thus saving resources and protecting the environment.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, specifically to an exhaust valve with a liquid level gauge. Background Technology

[0002] An air vent valve is a device used in pipeline systems to automatically discharge accumulated gas. It senses changes in liquid level through a float or lever mechanism, and automatically opens the vent to release gas when it accumulates, preventing gas blockage from affecting fluid transport efficiency.

[0003] Previous air vent valves had the following improvements: When the water pipe was blocked or frozen, the liquid level inside the air vent valve was abnormally high. This could cause the float to malfunction, preventing the air venting structure from releasing air. Previously, it was not convenient to detect abnormal liquid levels, thus hindering personnel from troubleshooting problems early and preventing the air venting structure from malfunctioning and causing leakage of media from the pipe, resulting in resource waste or environmental pollution. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides an exhaust valve with a liquid level gauge, which can easily detect abnormal liquid levels, thereby helping personnel to troubleshoot problems early, preventing leakage of the medium inside the pipe due to the malfunction of the exhaust structure, which is conducive to saving resources and protecting the environment.

[0005] The technical solution adopted by this utility model to solve its technical problem is an exhaust valve with a liquid level gauge, including a housing, an exhaust mechanism, and a liquid level monitoring mechanism; the bottom of the housing is provided with a liquid inlet, a flange is provided on the outer periphery of the bottom end of the housing, and an end cover is connected to the top end by bolts; the exhaust mechanism includes:

[0006] An exhaust port located at the top of the end cap;

[0007] Mounting bracket fixed to the top of the end cap;

[0008] A lever hinged to the mounting bracket via a pin;

[0009] A float connected to the far end of the lever;

[0010] A tapered sealing rod located near the lever is used to seal the vent.

[0011] The liquid level monitoring mechanism includes:

[0012] An opening located at the top of the side wall of the housing;

[0013] A level gauge installed on the outside of the opening;

[0014] The probe end of the level gauge extends into the inner cavity of the housing.

[0015] By adopting the above technical solution, when gas accumulates inside the shell, the liquid level drops, causing the float to lose buoyancy. The float then descends under its own weight, which in turn causes the lever and the conical sealing rod to descend, opening the vent for automatic venting.

[0016] Specifically, the signal output terminal of the level gauge is connected to an audible and visual alarm device.

[0017] Specifically, the contact surface between the conical sealing rod and the exhaust port is provided with a silicone sealing layer.

[0018] Specifically, the flange and the housing are integrally cast, and the bottom of the flange is provided with an annular sealing groove.

[0019] By adopting the above technical solution, the strength can be improved by integrally casting the shell and flange, the connection is not easily damaged by stress, and the sealing ring can be placed through the annular sealing groove, which improves the sealing performance when the flange is connected to the flange on the external pipeline.

[0020] Specifically, the opening edge is provided with a stepped sealing groove, and the level gauge achieves sealing with the opening through a stepped sealing ring located in the stepped sealing groove.

[0021] By adopting the above technical solution, the sealing effect between the opening and the level gauge can be effectively improved through the stepped sealing ring located in the stepped sealing groove.

[0022] Specifically, a counterweight is provided at the fulcrum of the lever to adjust the opening and closing sensitivity of the float.

[0023] By adopting the above technical solution, and by installing counterweights of different weights at the fulcrum of the lever, it is convenient to adjust the amount of lever lifting when the float is subjected to the same buoyancy, thereby adjusting the opening and closing sensitivity of the float.

[0024] Specifically, a reinforcing rib is provided at the corner where the end cap connects to the housing.

[0025] Specifically, the side wall of the shell is provided with a transparent observation window, and the surface of the transparent observation window is engraved with liquid level scale lines.

[0026] Specifically, the level gauge is a contact level gauge or a non-contact level gauge. Further, the level gauge is any one of a float level gauge, a magnetic level gauge, a magnetostrictive level gauge, a radar level gauge, and an ultrasonic level gauge. In this application, a contact level gauge is preferred.

[0027] The beneficial effects of this utility model are:

[0028] The exhaust valve with a liquid level gauge described in this utility model extends into the housing through the detection end of the liquid level gauge. It can detect when the liquid level inside the housing is in an abnormal position, thus making it convenient for personnel to know the situation. This exhaust valve can easily detect abnormal liquid levels, thereby helping personnel to troubleshoot problems early and prevent the exhaust structure from malfunctioning and causing the medium inside the pipe to leak out. It is beneficial to save resources and protect the environment. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the overall structure of the present invention after connecting the audible and visual alarm device;

[0032] Figure 3 This is a schematic diagram showing the detailed structure at point A of this utility model;

[0033] Figure 4 This is a schematic diagram of the conical sealing rod and silicone sealing layer structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the stepped sealing ring structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the counterweight structure of this utility model.

[0036] In the diagram: 1. Housing; 2. Flange; 3. End cap; 4. Exhaust port; 5. Mounting bracket; 6. Lever; 7. Float; 8. Conical sealing rod; 9. Opening; 10. Level gauge; 11. Silicone sealing layer; 12. Annular sealing groove; 13. Stepped sealing groove; 14. Counterweight; 15. Reinforcing rib; 16. Transparent observation window; 17. Audible and visual alarm device; 18. Stepped sealing ring. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0038] To facilitate the detection of abnormal liquid levels using this exhaust valve, thereby helping personnel to troubleshoot problems early and prevent leakage of media from the pipe due to malfunctioning exhaust structure, such as... Figure 1-6 As shown, the exhaust valve with a liquid level gauge of this utility model includes a housing 1, an exhaust mechanism, and a liquid level monitoring mechanism; the bottom of the housing 1 is provided with a liquid inlet, a flange 2 is provided on the outer periphery of the bottom end of the housing 1, and the top end is connected to an end cover 3 by bolts; the exhaust mechanism includes:

[0039] Vent 4 is located at the top of end cap 3;

[0040] Mounting bracket 5 fixed to the top of the end cap 3;

[0041] Lever 6 is hinged to mounting bracket 5 via a pin;

[0042] A float 7 is connected to the distal end of lever 6;

[0043] A tapered sealing rod 8 located near the end of lever 6 is used to seal the exhaust port 4;

[0044] The liquid level monitoring mechanism includes:

[0045] An opening 9 is provided at the top of the side wall of the housing 1;

[0046] The level gauge 10 is installed outside the opening 9;

[0047] The probe end of the level gauge 10 extends into the inner cavity of the housing 1.

[0048] When in use, when gas accumulates inside the housing 1, the liquid level drops, causing the float 7 to lose buoyancy. The float 7 descends under its own weight, which in turn causes the lever 6 and the conical sealing rod 8 to descend, opening the vent 4 for automatic venting.

[0049] For example, such as Figure 2 As shown, the present invention also includes a signal output terminal of the level gauge 10 connected to an audible and visual alarm device 17.

[0050] During use, the sound and light alarm device 17 can conveniently alert personnel that the liquid level inside the housing 1 is in an abnormal state.

[0051] For example, such as Figure 1 and Figure 4 As shown, the present invention also includes a silicone sealing layer 11 on the contact surface between the conical sealing rod 8 and the exhaust port 4.

[0052] When in use, the silicone sealing layer 11 can improve the sealing effect of the conical sealing rod 8 when sealing the exhaust port 4.

[0053] For example, such as Figure 1-2 As shown, the present invention also includes an integral casting structure for the flange 2 and the housing 1, and an annular sealing groove 12 is provided at the bottom of the flange 2.

[0054] In use, the integral casting of the housing 1 and flange 2 can improve strength and prevent stress damage at the connection. The annular sealing groove 12 can be used to place a sealing ring, which improves the sealing performance when flange 2 is connected to the flange on the external pipeline.

[0055] For example, such as Figure 1 , Figure 3 and Figure 5 As shown, the present invention also includes a stepped sealing groove 13 provided at the edge of the opening 9, and the level gauge 10 achieves sealing with the opening 9 through a stepped sealing ring 18 located in the stepped sealing groove 13.

[0056] In use, the stepped sealing ring 18 located in the stepped sealing groove 13 can effectively improve the sealing effect between the opening 9 and the level gauge 10.

[0057] For example, such as Figure 1 As shown, the present invention also includes a counterweight 14 at the fulcrum position of the lever 6, which is used to adjust the opening and closing sensitivity of the float 7.

[0058] In use, by installing counterweights 14 of different weights at the fulcrum of lever 6, it is convenient to adjust the amount of lifting of lever 6 when float 7 is subjected to the same buoyancy, thereby adjusting the opening and closing sensitivity of float 7.

[0059] For example, such as Figure 1 As shown, the present invention also includes a reinforcing rib 15 provided at the corner where the end cap 3 connects to the housing 1.

[0060] When in use, the reinforcing rib 15 can effectively improve the overall strength of the end cap 3 and the housing 1 after connection.

[0061] For example, such as Figure 1 As shown, the present invention also includes a transparent observation window 16 provided on the side wall of the housing 1, and liquid level scale lines are engraved on the surface of the transparent observation window 16.

[0062] During use, the liquid level inside the housing 1 can be easily read by personnel through the transparent observation window 16 and the liquid level scale on the surface of the transparent observation window 16.

[0063] When this utility model is in use, the level gauge 10 can be one of the following: submersible level gauge, radar level gauge, and ultrasonic level gauge. When the submersible level gauge is installed, it is fixed to the outside of the opening 9 by screws. A sealing ring can be placed through the annular sealing groove 12, so that when the flange 2 is connected to the flange on the external pipe, the sealing performance can be effectively improved. The stepped sealing ring 18 located in the stepped sealing groove 13 can effectively improve the sealing effect between the opening 9 and the level gauge 10. Personnel can observe the transparent observation window 16 and the level scale line on the surface of the transparent observation window 16, which makes it easy to read the current level in the housing 1.

[0064] The audible and visual alarm device 17 can be installed at a remote location to easily alert personnel, and a PLC is installed at the remote location to control the audible and visual alarm device 17 to work when the value of the level gauge 10 is higher than a certain limit.

[0065] When gas accumulates inside the housing 1, the liquid level drops, causing the float 7 to lose buoyancy. The float 7 descends under its own weight, pulling the lever 6 and the conical sealing rod 8 down, opening the vent 4. Gas inside the housing 1 is then discharged through the vent 4. When the liquid level inside the housing 1 rises, the float 7 is buoyed by the water, causing the lever 6 to rise around the hinge point, thereby driving the conical sealing rod 8 to seal the vent 4, achieving the venting function. The level gauge 10 extends to the housing 1, allowing detection when the liquid level inside the housing 1 is abnormal. This triggers a remote audible and visual alarm signal, helping personnel to be aware of the situation and proactively troubleshoot abnormalities. This vent valve facilitates the detection of abnormal liquid levels, helping personnel to identify problems early and preventing leakage of the medium inside the pipe due to malfunctioning venting structures. This contributes to resource conservation and environmental protection.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An exhaust valve with a level gauge, characterized in that, It includes a housing (1), an exhaust mechanism, and a liquid level monitoring mechanism; the housing (1) has a liquid inlet at the bottom, a flange (2) is provided on the outer periphery of the bottom end of the housing (1), and an end cap (3) is connected to the top end by bolts; the exhaust mechanism includes: An exhaust port (4) is located on the top of the end cap (3); Mounting bracket (5) fixed to the top of the end cap (3); The lever (6) is hinged to the mounting bracket (5) by a pin. A float (7) is connected to the far end of the lever (6); A tapered sealing rod (8) is located near the lever (6) to seal the exhaust port (4); The liquid level monitoring mechanism includes: a liquid level gauge (10); the detection end of the liquid level gauge (10) is located inside the housing (1).

2. The exhaust valve with level gauge according to claim 1, characterized in that, The output end of the level gauge (10) is connected to an audible and visual alarm device (17).

3. The exhaust valve with level gauge according to claim 1, characterized in that, The contact surface between the conical plug rod (8) and the exhaust port (4) is provided with a silicone sealing layer (11).

4. The exhaust valve with level gauge according to claim 1, characterized in that, The flange (2) and the housing (1) adopt an integral casting structure, and the bottom of the flange (2) is provided with an annular sealing groove (12).

5. The exhaust valve with level gauge according to claim 1, characterized in that, The lever (6) has a counterweight (14) at its fulcrum position to adjust the opening and closing sensitivity of the float (7).

6. The exhaust valve with level gauge according to claim 1, characterized in that, A reinforcing rib (15) is provided at the corner where the end cap (3) connects to the shell (1).

7. The exhaust valve with level gauge according to claim 1, characterized in that, The shell (1) has a transparent observation window (16) on its side wall, and the surface of the transparent observation window (16) is engraved with liquid level scale lines.

8. The exhaust valve with level gauge according to claim 1, characterized in that, The level gauge (10) is either a contact level gauge or a non-contact level gauge.

9. The exhaust valve with level gauge according to claim 1, characterized in that, The level gauge (10) is any one of the following: float level gauge, magnetic level gauge, magnetostrictive level gauge, radar level gauge, and ultrasonic level gauge.

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