CN219388690U

CN219388690U - Valve control device

Info

Publication number: CN219388690U
Application number: CN202223194232.4U
Authority: CN
Inventors: 吴昌丽
Original assignee: Wuxi Zhongrui Air Separation Equipment Co ltd
Current assignee: Wuxi Zhongrui Air Separation Equipment Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-07-21
Anticipated expiration: 2032-11-30

Abstract

The utility model belongs to the field of valves, and particularly discloses a valve control device, which comprises a valve body, wherein the valve body is communicated with a double adsorption tower in a nitrogen making machine, and the adsorption tower comprises an adsorption tower A and an adsorption tower B. The utility model can automatically realize the switching between the raw material air chamber and the double absorption towers so as to finish the separation of oxygen and nitrogen without arranging too many valves of various types and arranging too many communication pipelines, thereby reducing the occupied space of the use product and reducing the manufacturing cost.

Description

Valve control device

Technical Field

The present application relates to the field of valves, and more particularly to a valve control device.

Background

The double adsorption tower in the nitrogen making machine is equipment for filling solid adsorbent into the tower to make some components in gas or liquid entering the tower adsorbed by porous structure of the adsorbent so as to separate component oxygen from nitrogen.

In the prior art, publication number CN217636421U discloses a double-tower nitrogen making device for pure nitrogen reflux expansion, which comprises an air filter, an air compressor, a precooling machine set, a water separator, a molecular sieve absorber, a turbine expander, a main heat exchanger, a subcooler, a high-pressure nitrogen tower, a main condensing evaporator I, a low-pressure nitrogen tower and a main condensing evaporator II; the molecular sieve absorber is communicated with the main heat exchanger through a first pipeline, the first pipeline is communicated with a bearing gas and a sealing gas inlet of the turbine expander through a second pipeline, the high-pressure nitrogen tower is connected with an input port of the turbine expander through a third pipeline, the second pipeline is communicated with a fourth pipeline before the third pipeline, and valves are respectively arranged on the second pipeline and the fourth pipeline.

However, different types of valves are required to be arranged in different pipelines, more communication pipelines are arranged at the same time, and the occupied space of a product is larger and the manufacturing cost is also increased.

Disclosure of Invention

In order to solve the above problems, the present application provides a valve control device.

The application provides a valve control device adopts following technical scheme:

the utility model provides a valve controlling means, includes the valve body, double adsorption tower in the valve body intercommunication nitrogen making machine, the adsorption tower includes adsorption tower A and adsorption tower B, be equipped with the cavity in the valve body, the cavity intercommunication have supply and clean raw materials air's first passageway, with the second passageway that adsorption tower A is linked together and with the third passageway that adsorption tower B links to each other, the valve body top still is equipped with first driving piece, the cavity is inside to be equipped with the valve rod, still be equipped with the switching piece on the valve rod, first driving piece drives the valve rod and rotates, so that the switching piece is rotatory along the cavity axis, supplies first passageway the second passageway and intercommunication or the non-intercommunication between the two liang of third passageways.

Furthermore, a connecting part is further arranged in the cavity, the connecting part comprises a main rod and mounting cavities symmetrically arranged on two sides of the main rod, and the main rod can rotate along the axes of the two mounting cavities.

Through above-mentioned technical scheme, structural stability when increasing the rotation.

Further, a fourth channel is arranged on the switching piece, and a through hole is formed in the fourth channel.

Through the technical scheme, the channels can be switched to be communicated or not.

Further, the switching piece is spherical.

Through the technical scheme, the valve body is convenient to rotate in the cavity of the valve body.

Further, a first air chamber is further arranged at the bottom of the valve body, and the first air chamber is communicated with the fourth channel through a fifth channel.

Through above-mentioned technical scheme, supply raw materials air to detect the parking space.

Further, the bottom of the valve body is also provided with a temperature and humidity sensing piece.

Through the technical scheme, the gas is detected in real time, and the nitrogen production quality is ensured.

Further, the second channel and the third channel are also provided with flow controllers.

Through the technical scheme, the gas flow is controlled, so that oxygen and nitrogen separation is facilitated.

Further, a second air chamber capable of filtering impurities in the raw material air is further arranged on the first channel.

Through the technical scheme, raw material air with impurities is filtered into clean raw material air, and the nitrogen production quality is ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

the utility model provides a valve control device which can automatically realize the switching between a raw material air chamber and a double-absorption tower so as to finish the separation of oxygen and nitrogen, has a simple structure, realizes the separation of oxygen and nitrogen without arranging too many valves of various types, and is provided with too many communication pipelines, thereby reducing the occupied space of a using place and reducing the manufacturing cost.

Drawings

FIG. 1 is an overall schematic of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a schematic view in semi-section along A-A in FIG. 2;

fig. 4 is a schematic diagram of a switch according to the present utility model.

Reference numerals illustrate: 100. a valve body; 110. a first channel; 111. a second air chamber; 120. a second channel; 130. a third channel; 140. a first driving member; 150. a main rod; 160. a bearing; 170. a valve stem; 180. a switching member; 181. a fourth channel; 1811. a through port; 190. a fifth channel; 191. a first air chamber; 192. a temperature and humidity sensing member; 200. a flow controller; 300. an adsorption tower A; 400. and an adsorption tower B.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1-2, a valve control device comprises a valve body 100, wherein the valve body 100 is communicated with a double adsorption tower in a nitrogen making machine, and the adsorption tower comprises an adsorption tower a300 and an adsorption tower B400, and is characterized in that a cavity is arranged in the valve body 100, the cavity is communicated with a first channel 110 for supplying clean raw material air, a second channel 120 communicated with the adsorption tower a300 and a third channel 130 connected with the adsorption tower B400, a first driving member 140 is further arranged at the top of the valve body 100, a valve rod 170 is arranged in the cavity, a switching member 180 is further arranged on the valve rod 170, and the first driving member 140 drives the valve rod 170 to rotate so that the switching member 180 rotates along the axis of the cavity, and the first channel 110, the second channel 120 and the third channel 130 are communicated or not communicated.

In this embodiment, the first driving member 140 may be a servo motor, or may be a rotary electric cylinder, so as to control the accuracy of the rotation angle of the switching member 180.

In this embodiment, referring to fig. 3, a connecting portion is further provided in the cavity, the connecting portion includes a main rod 150 and mounting cavities symmetrically disposed on two sides of the main rod 150, the main rod 150 can rotate along axes of the two mounting cavities, specifically, one end of the main rod 150 is connected to an output end of the first driving member 140 at the top of the valve body 100, the other end of the main rod 150 extends towards the cavity and is sleeved with a valve rod 170, bearings 160 are respectively nested in the two mounting cavities, it is understood that the main rod 150 is sleeved in inner rings of the two bearings 160, so that the main rod 150 can only rotate along axes of the bearings 160, stability in a rotating process is enhanced, a spacer sleeve is further provided between the two mounting cavities, the spacer sleeve is sleeved on the main rod 150, and two ends of the spacer sleeve respectively resist end faces of the inner rings of the two bearings 160, so as to prevent the bearings 160 from axially moving along the axes of the main rod 150.

Referring to fig. 4, in the present embodiment, the switching member 180 is spherical, but may be square or other special shapes, and only needs to be matched with the cavity, and the shape is not limited herein.

Referring to fig. 4, in the present embodiment, the switching member 180 is provided with a fourth channel 181, and the fourth channel 181 is used for the flow communication of the gases between the first channel 110, the second channel 120 and the third channel 130, i.e. the gases can flow to the second channel 120 or the third channel 130 through the first channel 110 via the fourth channel 181, and also can flow to the third channel 130 from the second channel 120 via the fourth channel 181. Specifically, the fourth channel 181 is curved, the fourth channel 181 is provided with a through hole 1811, the two through holes 1811 are arranged on the switching member 180 in a staggered manner, and when the switching member 180 is rotated by a driving force, the two through holes 1811 can respectively correspond to the first channel 110 and the second channel 120, the first channel 110 and the third channel 130, or the second channel 120 and the third channel 130 one by one.

Referring to fig. 1, in the present embodiment, a temperature and humidity sensing member 192 is further disposed at the bottom of the valve body 100, where the temperature and humidity sensing member 192 is a temperature sensor and a humidity sensor, respectively, and is configured to detect the temperature and humidity conditions of the gas flowing in the fourth channel 181, so as to ensure the quality of the nitrogen gas produced by the nitrogen producing mechanism. In order to facilitate detecting the gas in the fourth channel 181, the switching member 180 is further provided with a fifth channel 190, wherein one end of the fifth channel 190 is connected with the fourth channel 181, the other end of the fifth channel 190 is connected with a first air chamber 191, the first air chamber 191 is arranged outside the bottom of the valve body 100 and is connected with a temperature and humidity sensing member 192, and in this way, the first air chamber 191 can retain the gas so as to facilitate the detection of the temperature and humidity sensing member 192.

Referring to fig. 1, in this embodiment, a second air chamber 111 is further disposed on the first channel 110, where the second air chamber 111 is used to temporarily store redundant clean raw material air so as to supply raw material to the adsorption tower in time, a filter part is further disposed in the second air chamber 111, a filter material capable of filtering the raw material air is disposed in the filter part, the filter material is activated carbon, the raw material air firstly enters the filter part, the activated carbon performs a first step of filtering on impurities in the raw material air, so that the raw material air with impurities is changed into clean raw material air, and the raw material air enters the nitrogen making machine, thereby guaranteeing the quality of nitrogen making machine nitrogen.

In this embodiment, a check valve is further disposed on the first channel 110, where the check valve is used to prevent clean raw material air from flowing into the adsorption tower a300, the adsorption tower a300 adsorbs O2, CO2 and H2O in the air by the adsorbent, and under the action of the check valve, nitrogen in the adsorbed air can only be output from the outlet end of the adsorption tower a300 and cannot flow back onto the first channel 110.

Referring to fig. 1, in the present embodiment, a flow controller 200 is further disposed on the second channel 120 and the third channel 130, the flow controller 200 is a thermal type gas flow controller 200, so as to measure the flow of nitrogen when the second channel 120 is communicated with the third channel 130, hereinafter, as described, clean air is first introduced into an adsorption tower a300 communicated with the second channel 120 from the first channel 110, the adsorption tower a300 adsorbs air, after a period of time, the flow meter detects that the adsorbent in the adsorption tower a300 is saturated in oxygen absorption, the third channel 130 is communicated with the second channel 120, the operation is switched to the adsorption tower B400, raw material air enters the adsorption tower B400 to absorb oxygen and produce nitrogen, the adsorption tower a300 is depressurized, and a small portion of nitrogen is controlled to enter the adsorption tower a300 via the flow controller 200, so as to desorb the adsorbed O2, CO2 and H2O, thereby realizing deoxidizing and regenerating the adsorbent, and alternately adsorbing and regenerating the two towers, thereby completing oxygen and nitrogen separation.

Working principle:

the raw material air with impurities firstly enters the second air chamber 111, the filtering part in the second air chamber 111 firstly filters the impurities of the raw material air to generate clean raw material air, the clean raw material air flows to the first channel 110, at the moment, the first driving part 140 drives the switching part 180 to rotate, the fourth channel 181 on the clean raw material air enables the first channel 110 to be communicated with the second channel 120, the raw material air flows to the adsorption tower A300 through the fourth channel 181 to produce nitrogen, or of course, the clean raw material air flows to the first channel 110, at the moment, the first driving part 140 drives the switching part 180 to rotate, the fourth channel 181 on the clean raw material air enables the first channel 110 to be communicated with the third channel 130, the raw material air flows to the adsorption tower B400 through the fourth channel 181 to produce nitrogen, after the adsorption tower A300 or the adsorption tower B400 is saturated by oxygen absorption, the first driving part 140 drives the switching part 180 again, the second channel 120 is communicated with the third channel 130, the raw material air enters the adsorption tower B400 or the adsorption tower A300 from the fourth channel 181, the adsorption tower A300 or the adsorption tower B400 is controlled to enter the adsorption tower B400 or the adsorption tower A300, the oxygen flow rate of the adsorption tower B is controlled, the oxygen absorber 200 is controlled to be the oxygen-free from oxygen, the oxygen absorber 2O 2 is desorbed, the oxygen absorber 2 is desorbed from the oxygen absorber 2O 2 is regenerated, and the oxygen absorber 2 is desorbed from the oxygen absorber 2 is regenerated.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a valve controlling means, includes valve body (100), double adsorption tower in valve body (100) intercommunication nitrogen making machine, the adsorption tower includes adsorption tower A (300) and adsorption tower B (400), a serial communication port, be equipped with the cavity in valve body (100), the cavity intercommunication have supply and clean raw materials air first passageway (110), with second passageway (120) that adsorption tower A (300) are linked together and with third passageway (130) that adsorption tower B (400) link to each other, valve body (100) top still is equipped with first driving piece (140), the cavity is inside to be equipped with valve rod (170), still be equipped with on valve rod (170) toggle piece (180), first driving piece (140) drive valve rod (170) rotate for toggle piece (180) are rotatory along the cavity axis, supply first passageway (110) second passageway (120) and intercommunication or not between two liang of third passageway (130).

2. A valve control device according to claim 1, wherein: the cavity is internally provided with a connecting part, the connecting part comprises a main rod (150) and mounting cavities symmetrically arranged on two sides of the main rod (150), and the main rod (150) can rotate along the axes of the two mounting cavities.

3. A valve control device according to claim 1, wherein: the switching piece (180) is provided with a fourth channel (181), and the fourth channel (181) is provided with a through hole (1811).

4. A valve control device according to claim 1, wherein: the switching member (180) is spherical.

5. A valve control device according to claim 3, wherein: the bottom of the valve body (100) is also provided with a first air chamber (191), and the first air chamber (191) is communicated with the fourth channel (181) through a fifth channel (190).

6. A valve control device according to claim 1, wherein: and a temperature and humidity sensing piece (192) is further arranged at the bottom of the valve body (100).

7. A valve control device according to claim 1, wherein: and the second channel (120) and the third channel (130) are also provided with a flow controller (200).

8. A valve control device according to claim 1, wherein: the first channel (110) is also provided with a second air chamber (111) which can filter impurities in the raw material air.