CN219756058U - Nitrogen pressurization system - Google Patents

Abstract

The utility model relates to the technical field of gas pressurization, in particular to a site nitrogen pressurization system for a dry gas sealing auxiliary system flushing system. The utility model comprises the following steps: a working boost circuit and a standby boost circuit; the working pressurizing loop and the standby pressurizing loop have the same structure, the inlet A of the working pressurizing loop and the standby pressurizing loop are connected with a site nitrogen source, and the outlet of the working pressurizing loop and the standby pressurizing loop are connected with gas utilization equipment through the B after passing through an outlet pressure gauge; the working pressurizing loop and the standby pressurizing loop are respectively formed by sequentially connecting an inlet ball valve, an inlet filter, a nitrogen pressurizing valve, an air storage tank, a high-precision filter and an outlet ball valve; the inlet end of the inlet ball valve is connected with the port A; the outlet end of the outlet ball valve is connected with an outlet pressure gauge. The technical scheme of the utility model solves the problems of low or unstable pressure of a site nitrogen source in the prior art, which causes that the pressure of a dry gas system cannot reach the rated use condition, thereby causing dry gas seal abrasion, medium leakage and the like.

Description

Nitrogen pressurization system

Technical Field

The utility model relates to the technical field of gas pressurization, in particular to a site nitrogen pressurization system for a dry gas sealing auxiliary system.

Background

Along with the increasing development of science and technology, more and more large-scale chemical equipment is promoted to be new, so that the application field of a dry gas system is wider and wider, sealing gas with proper pressure and flow is provided for sealing the dry gas, and sealing lubrication and heat dissipation are carried out on the dry gas, so that the stable operation of the equipment is ensured, the frequent occurrence of various mechanical faults is avoided, the stable operation of the equipment is ensured, the service life of the equipment is prolonged, and good social and economic benefits are realized

However, in the application occasions of the existing dry gas system, the pressure of a nitrogen source is low or unstable, so that the dry gas system cannot provide sealing gas with all pressures for sealing the dry gas, the dry gas is worn in a sealing manner, a medium is leaked, and equipment faults occur.

Aiming at the problems in the prior art, a novel nitrogen pressurization system is researched and designed, so that the problems in the prior art are overcome.

Disclosure of Invention

According to the technical problems that the pressure of a site nitrogen source is low or unstable, so that the pressure of a dry gas system cannot reach the rated use working condition, and the dry gas seal is worn, a medium is leaked and the like are caused, the nitrogen pressurization system is provided. The utility model carries out pressurization treatment on the on-site nitrogen mainly through the pressurization valve and the air storage tank, thereby leading the nitrogen to reach the rated service condition, leading the pressure of the dry gas system to be stable, prolonging the sealing service life and increasing the system safety.

The utility model adopts the following technical means:

a nitrogen pressurization system comprising: a working boost circuit and a standby boost circuit;

the working pressurizing loop and the standby pressurizing loop have the same structure, the inlet port A of the working pressurizing loop and the standby pressurizing loop are connected with a site nitrogen source, and the outlet ends of the working pressurizing loop and the standby pressurizing loop are connected with gas utilization equipment through the port B after passing through an outlet pressure gauge;

further, the working pressurizing loop and the standby pressurizing loop are respectively connected with an inlet ball valve, an inlet filter, a nitrogen pressurizing valve, an air storage tank, a high-precision filter and an outlet ball valve in sequence;

further, the inlet end of the inlet ball valve is connected with the port A;

further, the outlet end of the outlet ball valve is connected with an outlet pressure gauge.

Further, a nitrogen pressurization valve inlet pressure gauge is arranged on a pipeline between the inlet filter and the nitrogen pressurization valve and is used for detecting the pressure of nitrogen entering the nitrogen pressurization valve.

Further, a nitrogen pressurization valve outlet pressure gauge is arranged on a pipeline between the nitrogen pressurization valve and the air storage tank and used for detecting the nitrogen pressure after pressurization of the nitrogen pressurization valve and the nitrogen pressure entering the air storage tank.

Further, the working and backup charge circuits may be used interchangeably.

Compared with the prior art, the utility model has the following advantages:

1. the nitrogen pressurization system provided by the utility model can provide proper nitrogen source pressure for dry gas sealing under the condition of unstable or insufficient site nitrogen source pressure, so that the normal and stable operation of the dry gas sealing is ensured;

2. according to the nitrogen pressurization system, the air storage tank is added, so that the system can be ensured to continuously work for a certain time under the condition that the pressure source is disconnected, and the air storage tank is reasonable and simple in structure;

3. according to the nitrogen pressurization system provided by the utility model, the nitrogen pressurization valve starts to work under the condition of insufficient pressure through the preset pressure range, and stops working when the pressure reaches the rated pressure working condition, so that the energy consumption is further reduced.

In conclusion, the technical scheme of the utility model solves the problems of low or unstable pressure of a site nitrogen source in the prior art, which causes that the pressure of a dry gas system cannot reach the rated use condition, thereby causing dry gas seal abrasion, medium leakage and the like.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model.

In the figure: 1. an inlet ball valve 2, an inlet filter 3, a nitrogen booster valve inlet pressure gauge 4, a nitrogen booster valve 5, a nitrogen booster valve outlet pressure gauge 6, a gas storage tank 7, a high-precision filter 8, an outlet ball valve 9 and an outlet pressure gauge.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

As shown in fig. 1, the present utility model provides a nitrogen pressurization system including: a working boost circuit and a standby boost circuit;

the working pressurizing loop and the standby pressurizing loop have the same structure, the inlet A of the working pressurizing loop and the standby pressurizing loop are connected with a site nitrogen source, and the outlet of the working pressurizing loop and the standby pressurizing loop are connected with gas utilization equipment through the B of the working pressurizing loop and the standby pressurizing loop after passing through the outlet pressure gauge 9;

the working pressurizing loop and the standby pressurizing loop are respectively formed by sequentially connecting an inlet ball valve 1, an inlet filter 2, a nitrogen pressurizing valve 4, an air storage tank 6, a high-precision filter 7 and an outlet ball valve 8; the inlet end of the inlet ball valve 1 is connected with the port A; the outlet end of the outlet ball valve 8 is connected with an outlet pressure gauge 9.

A nitrogen pressurization valve inlet pressure gauge 3 is arranged on a pipeline between the inlet filter 2 and the nitrogen pressurization valve 4 and is used for detecting the pressure of nitrogen entering the nitrogen pressurization valve 4.

The pipeline between the nitrogen pressurization valve 4 and the air storage tank 6 is provided with a nitrogen pressurization valve outlet pressure gauge 5 for detecting the nitrogen pressure after pressurization of the nitrogen pressurization valve 4 and the nitrogen pressure entering the air storage tank 6.

The working and standby boost circuits may be used interchangeably.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (4)

1. A nitrogen pressurization system, characterized by:

the nitrogen pressurization system comprises: a working boost circuit and a standby boost circuit;

the working pressurizing loop and the standby pressurizing loop have the same structure, the inlet port A of the working pressurizing loop and the standby pressurizing loop are connected with a site nitrogen source, and the outlet ends of the working pressurizing loop and the standby pressurizing loop are connected with gas utilization equipment through the port B after passing through an outlet pressure gauge (9);

the working pressurizing loop and the standby pressurizing loop are respectively formed by sequentially connecting an inlet ball valve (1), an inlet filter (2), a nitrogen pressurizing valve (4), an air storage tank (6), a high-precision filter (7) and an outlet ball valve (8);

the inlet end of the inlet ball valve (1) is connected with the port A;

the outlet end of the outlet ball valve (8) is connected with an outlet pressure gauge (9).

2. The nitrogen pressurization system according to claim 1, wherein:

and a nitrogen pressurization valve inlet pressure gauge (3) is arranged on a pipeline between the inlet filter (2) and the nitrogen pressurization valve (4) and is used for detecting the pressure of nitrogen entering the nitrogen pressurization valve (4).

3. The nitrogen pressurization system according to claim 1, wherein:

the pipeline between the nitrogen pressurization valve (4) and the air storage tank (6) is provided with a nitrogen pressurization valve outlet pressure gauge (5) for detecting the nitrogen pressure after pressurization of the nitrogen pressurization valve (4) and the nitrogen pressure entering the air storage tank (6).

4. The nitrogen pressurization system according to claim 1, wherein:

the working booster circuit and the standby booster circuit can be used alternatively.