Air pressure adjusting device applied to oil storage tank

Abstract

The utility model discloses an air pressure adjusting device applied to a petroleum storage tank, which relates to the technical field of air pressure adjusting devices and comprises a micro-pressure adjusting valve, a connecting flange is arranged at the lower end of the micro-pressure adjusting valve, petroleum storage tank pipelines are arranged at two side ends of the connecting flange, and a circular protective cover is sleeved on the micro-pressure adjusting valve. The micro-pressure regulating valve comprises a circular protective cover, two observation plates are hinged to the circumferential surface of the circular protective cover at equal intervals, a two-layer waterproof cover is arranged at the upper end of the circular protective cover, and a mounting through hole is formed in the circular protective cover in a penetrating mode. The circular protective cover can block rainwater and prevent the rainwater from falling into the micro-pressure regulating valve, so that the dryness of the micro-pressure regulating valve is kept, the shell end of the micro-pressure regulating valve is prevented from rusting due to the rainwater, and the brand-new degree of the micro-pressure regulating valve is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure regulating devices, and particularly relates to an air pressure regulating device applied to an oil storage tank. Background Art

[0002] A micro-pressure regulating valve refers to a self-acting micro (differential) pressure regulating valve, which does not require external energy. It uses the energy of the controlled medium itself as the power source, introduces the actuator to control the position of the valve core to change the throttling area, thereby changing the flow rate to achieve the purpose of stabilizing the pressure behind the valve (post-valve type) or relieving pressure (pre-valve type);

[0003] For example, a Chinese patent discloses a new type of self-acting micro-pressure regulating valve (such as patent number: CN211715853U), which includes a valve body and a valve cover installed on the valve body; a guide sleeve and a valve seat are installed in the valve body; a valve stem is installed in the guide sleeve; a lower membrane cover is installed on the valve cover through screws; an upper membrane cover is installed on the lower membrane cover; the feature is that a plurality of fixing plates are provided on the lower membrane cover; fixing pins are installed between the fixing plates; a buckle is installed on the fixing pin; a buckle groove is provided on the buckle; a plurality of buckle steps are provided on the upper membrane cover; the buckle steps are installed in cooperation with the buckle groove. The structure of the utility model is simple, which can control the speed of the medium, prevent the medium from directly hitting the valve body, reduce the damage of the valve body and extend the service life, and can also quickly disassemble and assemble the upper membrane cover and the lower membrane cover.

[0004] At present, the general micro-pressure regulating valves are installed outdoors, and no protective mechanism is provided at their upper ends. Therefore, in rainy weather, rainwater will contact the valve body and then corrode the valve body, resulting in a reduced service life of the regulating valve. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an air pressure regulating device applied to an oil storage tank, which solves the technical problem that the current micro-pressure regulating valves are generally installed outdoors and no protective mechanism is provided at their upper ends. Therefore, in rainy weather, rainwater will contact the valve body and then corrode the valve body, resulting in a reduced service life of the regulating valve.

[0007] (2) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0009] A pressure regulating device applied to an oil storage tank, including a micro-pressure regulating valve. A connecting flange is provided at the lower end of the micro-pressure regulating valve. Oil storage tank pipes are provided at both side ends of the connecting flange. A circular protective cover is sleeved on the micro-pressure regulating valve. Two observation plates are equidistantly hinged on the circumferential surface of the circular protective cover. A two-layer waterproof cover is provided at the upper end of the circular protective cover. An installation through hole is penetrated through the circular protective cover. Sliding grooves are provided on both inner walls of the installation through hole opened in the circular protective cover. Clamping plates are slidably installed in the two sliding grooves opened in the circular protective cover. Positioning holes are penetrated through the side ends of the two clamping plates.

[0010] Preferably: Springs are fixedly installed between the two clamping plates and the inner walls of the sliding grooves opened in the circular protective cover. Two fixing blocks are equidistantly and fixedly installed on the circumferential surface of the upper end of the micro-pressure regulating valve. The upper ends of the two fixing blocks are inclined surfaces.

[0011] Preferably: The circular protective cover is slidably installed on the micro-pressure regulating valve through the opened installation through hole. The two clamping plates are respectively clamped with the two fixing blocks through the opened positioning holes. The shape of the clamping plate is L-shaped. The material of the observation plate is high-transparency glass.

[0012] (III) Beneficial effects

[0013] First, through the circular protective cover provided on the micro-pressure regulating valve of the present invention, in the case of frequent rain outdoors, the circular protective cover can block rainwater, avoid rainwater from falling into the micro-pressure regulating valve, thereby maintaining the dryness of the micro-pressure regulating valve, avoiding rust on the outer shell end of the micro-pressure regulating valve caused by rainwater, and greatly improving the newness of the micro-pressure regulating valve.

[0014] Second, through the positioning holes opened in the two clamping plates, they will be separated from the two fixing blocks. At this time, the user can take out the circular protective cover from the micro-pressure regulating valve, which is very convenient, and the structure is simple. Moreover, observation plates are provided at both side ends of the circular protective cover, which is convenient for the user to adjust the meter inside the micro-pressure regulating valve. When adjusting the meter inside the micro-pressure regulating valve, there is no need to disassemble the entire circular protective cover, and the observation plate is made of transparent glass, which can facilitate the user to observe the micro-pressure regulating valve inside. Brief description of the drawings

[0015] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiment of the present invention and combines the drawings to describe in detail as follows.

[0016] Figure 1 It is the overall structure diagram of the present invention;

[0017] Figure 2Structural diagram of the observation board of the present utility model;

[0018] Figure 3 Structural diagram of the circular protective cover of the present utility model;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at position A.

[0020] Legend: 11, clamping plate; 12, positioning hole; 13, sliding groove; 14, spring; 15, circular protective cover; 16, installation through hole; 17, observation board; 18, double-layer waterproof cover; 21, micro-pressure regulating valve; 22, fixing block; 23, connecting flange; 24, petroleum storage tank pipeline. Specific implementation manner

[0021] In the embodiment of the present application, by providing a pneumatic pressure regulating device applied to a petroleum storage tank, it effectively solves the problem that currently, micro-pressure regulating valves are generally installed outdoors and there is no protective mechanism at their upper ends. As a result, in rainy weather, rainwater will come into contact with the valve body and then corrode the valve body, leading to a reduction in the service life of the regulating valve. In this new type, by setting a circular protective cover on the micro-pressure regulating valve, in the case of frequent rain outdoors, the circular protective cover can block rainwater and prevent it from falling into the micro-pressure regulating valve, thereby maintaining the dryness of the micro-pressure regulating valve and avoiding rust on the outer shell end of the micro-pressure regulating valve, greatly improving the newness of the micro-pressure regulating valve.

[0022] Embodiment

[0023] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in order to effectively solve the technical problem that currently, micro-pressure regulating valves are generally installed outdoors and there is no protective mechanism at their upper ends, resulting in rainwater contacting the valve body and corroding the valve body in rainy weather, reducing the service life of the regulating valve, the overall idea of the technical solution in the embodiment of the present application is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a pneumatic pressure regulating device applied to an oil storage tank, which includes a micro-pressure regulating valve 21. A connecting flange 23 is provided at the lower end of the micro-pressure regulating valve 21. Oil storage tank pipelines 24 are provided at both side ends of the connecting flange 23. A circular protective cover 15 is sleeved on the micro-pressure regulating valve 21. Two observation plates 17 are equidistantly hinged on the circumferential surface of the circular protective cover 15. A two-layer waterproof cover 18 is provided at the upper end of the circular protective cover 15. An installation through hole 16 is penetrated through the circular protective cover 15. Sliding grooves 13 are opened on both inner walls of the installation through hole 16 opened in the circular protective cover 15. Clamping plates 11 are slidably installed in the two sliding grooves 13 opened in the circular protective cover 15. Positioning holes 12 are penetrated through the side ends of the two clamping plates 11.

[0025] Spring 14 is fixedly installed between the two clamping plates 11 and the inner walls of the sliding grooves 13 opened in the circular protective cover 15. Two fixing blocks 22 are equidistantly and fixedly installed on the circumferential surface of the upper end of the micro-pressure regulating valve 21. The upper ends of the two fixing blocks 22 are inclined surfaces. When the device is in use, the user installs the connecting flange 23 between the two oil storage tank pipelines 24, and then sleeves the circular protective cover 15 from the upper end of the micro-pressure regulating valve 21 and presses it downward. During the sleeving process, the two clamping plates 11 will encounter the two fixing blocks 22. Under the inclined surface design of the two fixing blocks 22, the two clamping plates 11 will move in opposite directions. When the positioning holes 12 opened in the two clamping plates 11 are aligned with the two fixing blocks 22, under the elastic force of the spring 14, the clamping plates 11 will be clamped with the fixing blocks 22. At this time, the circular protective cover 15 is completed with the installation of the micro-pressure regulating valve 21. The present novel type, by providing the circular protective cover 15 on the micro-pressure regulating valve 21, enables the circular protective cover 15 to block rainwater in the case of frequent rain outdoors, avoiding rainwater from falling into the micro-pressure regulating valve 21, thereby maintaining the dryness of the micro-pressure regulating valve 21, avoiding rust on the outer shell end of the micro-pressure regulating valve 21 caused by rainwater, and greatly improving the newness of the micro-pressure regulating valve 21.

[0026] The circular protective cover 15 is slidably mounted on the micro-pressure regulating valve 21 through the provided mounting through-holes 16. The two clamping plates 11 are respectively clamped with the two fixing blocks 22 through the provided positioning holes 12. The shape of the clamping plate 11 is L-shaped. The material of the observation plate 17 is high-transparency glass. When it is necessary to disassemble the circular protective cover 15, just squeeze the two clamping plates 11 in opposite directions, and the positioning holes 12 provided on the two clamping plates 11 will be separated from the two fixing blocks 22. At this time, the user can take out the circular protective cover 15 from the micro-pressure regulating valve 21, which is very convenient, and the structure is simple. Moreover, the observation plates 17 are provided at both ends of the circular protective cover 15, which is convenient for the user to adjust the meter inside the micro-pressure regulating valve 21. When adjusting the meter inside the micro-pressure regulating valve 21, there is no need to disassemble the entire circular protective cover 15, and the observation plate 17 is made of transparent glass, which can facilitate the user to observe the micro-pressure regulating valve 21 inside it.

[0027] Working principle:

[0028] First step, when the device is in use, the user installs the connecting flange 23 between the two petroleum storage tank pipelines 24, and then slews the circular protective cover 15 from the upper end of the micro-pressure regulating valve 21 and squeezes it downward. During the slewing process, the two clamping plates 11 will encounter the two fixing blocks 22. Under the inclined surface design of the two fixing blocks 22, the two clamping plates 11 will move in opposite directions. When the positioning holes 12 provided on the two clamping plates 11 are aligned with the two fixing blocks 22, under the elastic force of the spring 14, the clamping plates 11 will be clamped with the fixing blocks 22. At this time, the circular protective cover 15 is completed to be installed with the micro-pressure regulating valve 21. With the circular protective cover 15 provided on the micro-pressure regulating valve 21 in this new type, in the case of frequent rain outdoors, the circular protective cover 15 can block rainwater and prevent rainwater from falling into the micro-pressure regulating valve 21, thereby maintaining the dryness of the micro-pressure regulating valve 21 and avoiding rust on the outer shell end of the micro-pressure regulating valve 21 caused by rainwater, greatly improving the newness of the micro-pressure regulating valve 21.

[0029] Second step, when it is necessary to disassemble the circular protective cover 15, just squeeze the two clamping plates 11 in opposite directions, and the positioning holes 12 provided on the two clamping plates 11 will be separated from the two fixing blocks 22. At this time, the user can take out the circular protective cover 15 from the micro-pressure regulating valve 21, which is very convenient, and the structure is simple. Moreover, the observation plates 17 are provided at both ends of the circular protective cover 15, which is convenient for the user to adjust the meter inside the micro-pressure regulating valve 21. When adjusting the meter inside the micro-pressure regulating valve 21, there is no need to disassemble the entire circular protective cover 15, and the observation plate 17 is made of transparent glass, which can facilitate the user to observe the micro-pressure regulating valve 21 inside it.

[0030] Finally, it should be noted that: Obviously, the above embodiments are merely examples given to clearly illustrate the present utility model, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present utility model.

Claims

1. A gas pressure regulating device for use in an oil storage tank, comprising a micro-pressure regulating valve (21), a connecting flange (23) being provided at the lower end of the micro-pressure regulating valve (21), and oil storage tank pipelines (24) being provided at both sides of the connecting flange (23), characterized in that: The micro-pressure regulating valve (21) is sleeved with a circular protective cover (15), the circumferential surface of the circular protective cover (15) is hinged with two observation plates (17) at equal distances, and the upper end of the circular protective cover (15) is provided with a two-layer waterproof cover (18); The circular protective cover (15) is provided with a mounting through hole (16), both sides of the inner wall of the mounting through hole (16) provided in the circular protective cover (15) are provided with sliding grooves (13), and a clamping plate (11) is slidably installed in the two sliding grooves (13) provided in the circular protective cover (15), and the side ends of the two clamping plates (11) are provided with positioning holes (12).

2. The gas pressure regulating device for a petroleum storage tank according to claim 1, characterized in that: A spring (14) is fixedly installed between the two clamping plates (11) and the inner wall of the sliding groove (13) formed in the circular protective cover (15).

3. The gas pressure regulating device for a petroleum storage tank according to claim 2, characterized in that: Two fixing blocks (22) are fixedly mounted at equal intervals on the circumferential surface of the upper end of the micro-pressure regulating valve (21).

4. The gas pressure regulating device for a petroleum storage tank according to claim 3, characterized in that: The upper ends of the two fixing blocks (22) are both inclined surfaces.

5. The gas pressure regulating device for oil storage tanks according to claim 4 is characterized in that: The circular protective cover (15) is slidably mounted on the micro-pressure regulating valve (21) through the opening of the mounting through hole (16).

6. The gas pressure regulating device for oil storage tanks according to claim 5, characterized in that: The two clamping plates (11) are respectively clamped with the two fixing blocks (22) through the provided positioning holes (12).

7. The gas pressure regulating device for a petroleum storage tank according to claim 6, characterized in that: The shape of the clamping plate (11) is L-shaped.

8. The gas pressure regulating device for a petroleum storage tank according to claim 7, characterized in that: The material of the observation plate (17) is high-transmittance glass.

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