Pipe protecting device for protecting low-temperature storage tank liquid level meter

Abstract

The utility model discloses a pipe protecting device for protecting a low-temperature storage tank liquid level meter, which comprises an inner container, an inner container bottom plate arranged at the bottom of the inner container, a sealing pipe arranged at the top of the inner container bottom plate, a plurality of small holes arranged on the lower side of the sealing pipe, a sealing plate arranged at the top of the sealing pipe, and a sealing cover arranged on the sealing plate. An adapter is further installed in the center of the inner container bottom plate, adapter grooves are formed in the upper side and the lower side of the adapter, a liquid level pipe is installed in the adapter groove in the upper side and arranged on the lower side of the bottom of the sealing plate, and a liquid level meter liquid phase pipe is installed in the adapter groove in the lower side. The differential pressure liquid level meter has the advantages that the differential pressure liquid level meter can stabilize the liquid phase display pressure of the differential pressure liquid level meter under the condition that the pointer of the low-temperature storage tank liquid level meter is unstable, the influence of laminar flow, vortex, liquid rolling and the like in the storage tank on the liquid phase pressure is reduced, and therefore the pointer of the meter is stable and accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of protection of a low-temperature storage tank liquid level gauge, and in particular relates to a pipe protection device for protecting a low-temperature storage tank liquid level gauge. Background Art

[0002] With the increasing demand for cryogenic liquefied gases (such as liquefied natural gas) in industrial enterprises, transportation industry, and civil use, as well as the demand for the capacity of urban storage stations, there is a large demand for cryogenic storage tanks. The liquid level gauge system of the cryogenic storage tank usually uses a differential pressure level gauge for mechanical measurement. During the process of liquid in and out of the tank, the impact on the liquid phase pipe is large, which often causes the pointer of the tank level gauge to swing greatly. The main reason is that the liquid enters directly from the liquid phase pipe, coupled with the laminar flow, vortex, and liquid tumbling of the cryogenic liquid in the container. Therefore, a pipe protection device for protecting the cryogenic tank level gauge is urgently needed to solve the above problems. Utility Model Content

[0003] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a pipe protection device for protecting a liquid level gauge of a cryogenic storage tank.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A pipe protection device for protecting a liquid level gauge of a cryogenic storage tank comprises an inner container, wherein an inner container bottom plate is installed at the bottom of the inner container, a sealing tube is installed at the top of the inner container bottom plate, the sealing tube is a hollow tube, a plurality of small holes are provided on the lower side of the sealing tube, and the plurality of small holes are evenly arranged on the sealing tube, a sealing plate is installed on the top of the sealing tube, an adapter is also installed at the center of the inner container bottom plate, adapter grooves are provided on the upper and lower sides of the adapter, wherein a liquid level tube is installed in the upper adapter groove, the liquid level tube is arranged on the lower side of the bottom of the sealing plate, and a liquid phase tube of the liquid level gauge is installed in the lower adapter groove.

[0006] It is further defined that an electromagnetic control valve is installed in the small hole. Such a structural design can play a role in switch control.

[0007] It is further defined that a sealing reinforcement seat is provided at the connection between the bottom plate of the inner container and the outer part of the sealing tube. Such a structural design improves the connection strength and the sealing effect.

[0008] It is further defined that a sealing connection seat is provided between the top of the sealing tube and the bottom of the sealing plate. Such a structural design improves the sealing effect of the connection installation.

[0009] It is further defined that the bottom plate of the inner container is provided with a sealing ring seat at the connection with the adapter, and the adapter is arranged in the sealing ring seat. Such a structural design improves the sealing effect and prevents leakage.

[0010] The beneficial effects of the utility model are as follows: the utility model can stabilize the liquid phase display pressure of the differential pressure level gauge in response to the unstable pointer of the low-temperature storage tank liquid level gauge, reduce the influence of laminar flow, eddy current, liquid tumbling and the like in the storage tank on the liquid phase pressure, thereby making the instrument pointer stable and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0012] Figure 1 This is a schematic diagram of the axial structure of a pipe protection device for protecting a liquid level gauge of a cryogenic storage tank according to an embodiment of the utility model;

[0013] Figure 2 This is a schematic cross-sectional structure diagram of a pipe protection device for protecting a low-temperature storage tank liquid level gauge according to an embodiment of the utility model;

[0014] The main component symbols are described as follows:

[0015] Inner container bottom plate 1, sealing tube 2, small hole 3, sealing plate 4, adapter 5, adapter groove 6, liquid level tube 7, liquid phase tube of liquid level gauge 8, electromagnetic control valve 9, sealing reinforcement seat 10, sealing connection seat 11, and sealing ring seat 12. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1-2 As shown, the utility model is a pipe protection device for protecting a liquid level gauge of a cryogenic storage tank, wherein an inner container bottom plate 1 is installed at the bottom of the inner container, a sealing tube 2 is installed on the top of the inner container bottom plate 1, the sealing tube 2 is a hollow tube, a plurality of small holes 3 are provided on the lower side of the sealing tube 2, the plurality of small holes 3 are evenly arranged on the sealing tube 2, a sealing plate 4 is installed on the top of the sealing tube 2, an adapter 5 is also installed at the center of the inner container bottom plate 1, adapter grooves 6 are provided on the upper and lower sides of the adapter 5, wherein a liquid level tube 7 is installed in the upper adapter groove 6, the liquid level tube 7 is arranged on the lower side of the bottom of the sealing plate 4, and a liquid phase tube 8 of the liquid level gauge is installed in the lower adapter groove 6.

[0018] Preferably, an electromagnetic control valve 9 is installed in the small hole 3. Such a structural design can play a role in switch control.

[0019] Preferably, a sealing reinforcement seat 10 is provided at the outer connection between the inner container bottom plate 1 and the sealing tube 2. Such a structural design improves the connection strength and the sealing effect.

[0020] Preferably, a sealing connection seat 11 is provided between the top of the sealing tube 2 and the bottom of the sealing plate 4. Such a structural design improves the sealing effect of the connection installation.

[0021] Preferably, the inner container bottom plate 1 is provided with a sealing ring seat 12 at the connection with the adapter 5, and the adapter 5 is arranged in the sealing ring seat 12. Such a structural design improves the sealing effect and prevents leakage.

[0022] In this embodiment, during operation, liquid flows into the sealing tube 2 from the small hole 3 on the lower side thereof until the liquid fills the sealing tube 2 and makes the pressure equal to that at the bottom of the inner container. This structure can effectively reduce the laminar flow and eddy current generated when liquid enters and exits the storage tank, and can effectively obtain a relatively stable liquid. Through the liquid level tube 7, the adapter 5 and the liquid phase tube 8 of the liquid level gauge, the liquid at the bottom of the storage tank enters the liquid phase tube 8 of the liquid level gauge to obtain the bottom pressure of the bottom of the storage tank, providing the liquid level gauge with a stable liquid phase indication pressure, thereby stabilizing the pointer reading of the liquid meter.

[0023] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A pipe protection device for protecting a liquid level gauge of a cryogenic storage tank, comprising an inner container, wherein an inner container bottom plate (1) is installed at the bottom of the inner container, and characterized in that: A sealing tube (2) is installed on the top of the bottom plate (1) of the inner container. The sealing tube (2) is a hollow tube. A plurality of small holes (3) are provided on the lower side of the sealing tube (2). The plurality of small holes (3) are evenly arranged on the sealing tube (2). A sealing plate (4) is installed on the top of the sealing tube (2). An adapter (5) is also installed at the center of the bottom plate (1) of the inner container. Adapter grooves (6) are provided on the upper and lower sides of the adapter (5). A liquid level tube (7) is installed in the upper adapter groove (6). The liquid level tube (7) is arranged on the lower side of the bottom of the sealing plate (4). A liquid level meter liquid phase tube (8) is installed in the lower adapter groove (6).

2. The pipe protection device for protecting a low-temperature storage tank liquid level gauge according to claim 1, characterized in that: An electromagnetic control valve (9) is installed in the small hole (3).

3. The pipe protection device for protecting a low-temperature storage tank liquid level gauge according to claim 2, characterized in that: A sealing reinforcement seat (10) is provided at the external connection between the inner container bottom plate (1) and the sealing tube (2).

4. The pipe protection device for protecting a low-temperature storage tank liquid level gauge according to claim 3 is characterized in that: A sealing connection seat (11) is provided between the top of the sealing tube (2) and the bottom of the sealing plate (4).

5. The pipe protection device for protecting a low-temperature storage tank liquid level gauge according to claim 4, characterized in that: The inner container bottom plate (1) is provided with a sealing ring seat (12) at the connection with the adapter (5), and the adapter (5) is arranged in the sealing ring seat (12).

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