Combined control valve

Abstract

The utility model discloses a combination control valve which comprises a liquid level meter, an installation support, a combination valve, a control handle and a pressure meter, the liquid level meter is connected with the installation support through a connecting screw and an installation screw, the installation support is connected with the top of the combination valve through a connecting cushion block, and the connecting end is fixed through an installation bolt. The top of the combination valve is connected with the liquid level meter through a locking nut, the top of the combination valve is a gas outlet end, the bottom of the combination valve is a gas inlet end, and the combination valve is composed of a gas phase end and a liquid phase end. In the prior art, a combined control valve does not cooperate with a liquid level meter and a pressure meter, cannot have different operation states according to actual conditions, and is not beneficial to actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to a combined control valve. Background Art

[0002] The combination control valve is a valve structure that combines multiple valve types into an integral whole. Its working principle is to control the main valve through the action of the control valve. The combination valve can be designed and selected according to the actual working requirements to meet the needs of different application scenarios. The liquid level gauge is used for liquid level measurement in cryogenic liquid storage tanks, quick-cooling storage tanks, etc. The media include LO2, LN2, LCO2, LNG and other liquids. It indicates the differential pressure liquid level height in the container and displays the current liquid volume and weight in the tank with reference to the liquid level gauge comparison table. It is an economical and practical cryogenic liquid level measuring instrument.

[0003] At present, when measuring the liquid level inside the cold storage tank, the combined control valve, the liquid level gauge and the pressure gauge do not produce a coordinated effect, and cannot have different operating states according to the actual situation, which is not conducive to actual use.

[0004] Therefore, it is necessary to provide a combined control valve to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a combined control valve to solve the problem that when measuring the liquid level inside the cold storage tank, the combined control valve, the liquid level gauge and the pressure gauge do not cooperate with each other, and cannot have different operating states according to the actual situation, which is not conducive to actual use.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A combined control valve, comprising: a liquid level meter, a mounting bracket, a combined valve, a control handle, and a pressure gauge;

[0008] The liquid level gauge is connected to the mounting bracket through connecting screws and mounting screws. The mounting bracket is connected to the top of the combination valve through a connecting pad. The connecting end is fixed by a mounting bolt. The top of the combination valve is installed and connected to the liquid level gauge through a locking nut. The top of the combination valve is the air outlet end and the bottom is the air inlet end. The combination valve consists of a gas phase end and a liquid phase end. Control handles are installed on both sides of the gas phase end and the liquid phase end of the combination valve. A locking nut is installed on the control handle facing the valve body of the combination valve. A pressure gauge seat is installed on the front end face of the combination valve. The pressure gauge seat is locked and connected to the pressure gauge, and a sealing ring is installed at the connection.

[0009] In one embodiment, the liquid phase end, gas phase end, and pressure gauge seat are all in an open state, the balancing valve is in a closed state, the operating handle at the gas phase end is in a middle position, the operating handle at the liquid phase end is in a clockwise bottom position, the liquid level gauge displays the pressure difference of the liquid level in the storage tank or tank truck, the pressure gauge displays the pressure of the gas phase space of the low-temperature container, and the overall mechanism is in normal use.

[0010] In one embodiment, the liquid phase end, gas phase end, pressure gauge seat and balancing valve are all in an open state. In this state, the operating handle of the gas phase end is located in the middle position, the operating handle of the liquid phase end is also located in the middle position, the liquid level gauge has no differential pressure and no indication, the pressure gauge still displays the pressure of the gas phase space of the low-temperature container, and the overall device is in a balanced state.

[0011] In one embodiment, the liquid phase end and the gas phase end are both in an open state, and the pressure gauge seat and the balancing valve are both in a closed state. In this state, the operating handle of the gas phase end is located at the bottom clockwise position, and the operating handle of the liquid phase end is also located at the bottom clockwise position. The liquid level gauge displays the pressure difference of the liquid level in the storage tank or tank truck, the pressure gauge has no reading, and there will be no leakage when the pressure gauge is removed. The overall device is in a working state where the pressure gauge can be replaced separately.

[0012] In one embodiment, the liquid phase end, gas phase end, pressure gauge seat and balancing valve are all in a closed state. In this state, the operating handle of the gas phase end is located at the bottom counterclockwise position, the operating handle of the liquid phase end is located at the bottom counterclockwise position, the liquid level gauge has no indication, the pressure gauge has no indication, and there will be no leakage when the liquid level gauge or the pressure gauge is removed.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model fixes the combination valve and the liquid level gauge by means of an installation bracket, screws the pressure gauge into the pressure gauge seat of the combination valve, and installs the combination valve, the liquid level gauge, and the pressure gauge, so that the combination valve, the liquid level gauge, and the pressure gauge are in a working connection state. By adjusting the operating handle, the combination valve, the liquid level gauge, and the pressure gauge are in different working states according to different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the overall structure of the utility model;

[0016] Figure 2 This is a rear view detail diagram of the overall structure of the utility model;

[0017] Figure 3 It is a detailed side view of the overall structure of the utility model;

[0018] Figure 4 This is a detailed diagram of the combination valve of the utility model.

[0019] Among them, the names corresponding to the figure marks are: liquid level meter 1, mounting bracket 2, connecting screw 21, mounting screw 22, connecting gasket 23, combination valve 3, mounting bolt 31, locking nut 32, gas phase end 33, liquid phase end 34, pressure gauge seat 35, control handle 4, locking nut 41, pressure gauge 5. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0021] like Figure 1-Figure 4 As shown, the utility model provides a combined control valve, comprising: a liquid level meter 1, a mounting bracket 2, a combined valve 3, a control handle 4, and a pressure gauge 5;

[0022] like Figure 1-Figure 4 As shown, the liquid level gauge 1 is connected to the mounting bracket 2 through the connecting screws 21 and the mounting screws 22. The mounting bracket 2 is connected to the top of the combination valve 3 through the connecting pad 23. The connecting end is fixed by the mounting bolt 31. The top of the combination valve 3 is installed and connected to the liquid level gauge 1 through the locking nut 32. The top of the combination valve 3 is the air outlet end and the bottom is the air inlet end. The combination valve 3 is composed of a gas phase end 33 and a liquid phase end 34. The combination valve 3 is provided with a control handle 4 on both sides of the gas phase end 33 and the liquid phase end 34. The control handle 4 is provided with a locking nut 41 facing the valve body of the combination valve 3. The front end surface of the combination valve 3 is provided with a pressure gauge seat 35. The pressure gauge seat 35 is locked and connected to the pressure gauge 5, and a sealing ring is provided at the connection.

[0023] Preferably, in one embodiment, the liquid phase end 34, the gas phase end 33, and the pressure gauge seat 35 are all in an open state, and the balancing valve is in a closed state. In this state, the operating handle 4 located at the gas phase end 33 is in the middle position, and the operating handle 4 located at the liquid phase end 34 is in the clockwise bottom position. The liquid level gauge 1 displays the pressure difference of the liquid level in the storage tank or tank truck, and the pressure gauge 5 displays the pressure of the gas phase space of the low-temperature container. The overall mechanism is in normal use.

[0024] Preferably, in one embodiment, the liquid phase end 34, the gas phase end 33, the pressure gauge seat 35 and the balancing valve are all in an open state. In this state, the operating handle 4 of the gas phase end 33 is located in the middle position, the operating handle 4 of the liquid phase end is also located in the middle position, the liquid level gauge 1 has no differential pressure and no indication, the pressure gauge 5 still displays the pressure of the gas phase space of the low-temperature container, and the overall device is in a balanced state.

[0025] Preferably, in one embodiment, the liquid phase end 34 and the gas phase end 33 are both in an open state, and the pressure gauge seat 35 and the balancing valve are both in a closed state. In this state, the operating handle 4 of the gas phase end 33 is located at the bottom clockwise position, and the operating handle 4 of the liquid phase end 34 is also located at the bottom clockwise position. The liquid level gauge 1 displays the pressure difference of the liquid level in the storage tank or tank truck, the pressure gauge has no reading, and there will be no leakage when the pressure gauge is removed, and the overall device is in a working state where the pressure gauge can be replaced separately.

[0026] Preferably, in one embodiment, the liquid phase end 34, the gas phase end 33, the pressure gauge seat 35 and the balancing valve are all in a closed state. In this state, the operating handle 4 of the gas phase end 33 is located at the bottom counterclockwise position, and the operating handle 4 of the liquid phase end 34 is located at the bottom counterclockwise position. The liquid level gauge 1 has no indication, and the pressure gauge 5 also has no indication, and there will be no leakage when the liquid level gauge 1 or the pressure gauge 5 is removed.

[0027] Working principle of this utility model:

[0028] During operation, the combination valve 3 and the liquid level gauge 1 are fixedly installed by means of the mounting bracket 2, and the pressure gauge 5 is screwed into the pressure gauge seat 35 of the combination valve 3 to make the combination valve 3, the liquid level gauge 1 and the pressure gauge 5 in a working connection state. By adjusting the operating handle 4, the combination valve 3, the liquid level gauge 1 and the pressure gauge 5 are in different working states according to different situations.

[0029] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A combined control valve, characterized in that: include: Liquid level gauge, mounting bracket, combination valve, control handle, pressure gauge; The liquid level gauge is connected to the mounting bracket through connecting screws and mounting screws. The mounting bracket is connected to the top of the combination valve through a connecting pad. The connecting end is fixed by a mounting bolt. The top of the combination valve is installed and connected to the liquid level gauge through a locking nut. The top of the combination valve is the air outlet end and the bottom is the air inlet end. The combination valve consists of a gas phase end and a liquid phase end. Control handles are installed on both sides of the gas phase end and the liquid phase end of the combination valve. A locking nut is installed on the control handle facing the valve body of the combination valve. A pressure gauge seat is installed on the front end face of the combination valve. The pressure gauge seat is locked and connected to the pressure gauge, and a sealing ring is installed at the connection.

2. A combined control valve according to claim 1, characterized in that: The liquid phase end, gas phase end, and pressure gauge seat are all in an open state, the balancing valve is in a closed state, the operating handle at the gas phase end is in the middle position, the operating handle at the liquid phase end is in the clockwise bottom position, the liquid level gauge displays the pressure difference of the liquid level in the storage tank or tank truck, the pressure gauge displays the pressure of the gas phase space of the low-temperature container, and the overall mechanism is in normal use.

3. A combined control valve according to claim 1, characterized in that: The liquid phase end, gas phase end, pressure gauge seat and balancing valve are all in an open state. In this state, the operating handle of the gas phase end is located in the middle position, the operating handle of the liquid phase end is also located in the middle position, the liquid level gauge has no differential pressure and no indication, the pressure gauge still displays the pressure of the gas phase space of the low-temperature container, and the overall device is in a balanced state.

4. A combined control valve according to claim 1, characterized in that: The liquid phase end and the gas phase end are both in an open state, and the pressure gauge seat and the balancing valve are both in a closed state. In this state, the operating handle of the gas phase end is located in the clockwise bottom position, and the operating handle of the liquid phase end is also located in the clockwise bottom position. The liquid level gauge displays the pressure difference of the liquid level in the storage tank or tank truck, the pressure gauge has no indication, and there will be no leakage when the pressure gauge is removed. The overall device is in a working state where the pressure gauge can be replaced separately.

5. A combined control valve according to claim 1, characterized in that: The liquid phase end, gas phase end, pressure gauge seat and balancing valve are all in a closed state. In this state, the operating handle of the gas phase end is in the counterclockwise bottom position, the operating handle of the liquid phase end is in the counterclockwise bottom position, the liquid level gauge has no indication, the pressure gauge also has no indication, and there will be no leakage even if the liquid level gauge or the pressure gauge is removed.

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