Analysis device and air analysis system

Abstract

The utility model discloses an analysis device and an air analysis system, a vaporizer can receive a medium and gasify the medium into gas, a filter assembly with an inlet communicated with the vaporizer can receive the gas, and then the gas is filtered through at least two filters connected in series in the filter assembly. The possibility that powder or impurities block a pipeline or analysis equipment is reduced, the at least two filters connected in series can reduce the pressure needed by each filter for filtering gas, pressure detectors for detecting the inlet and the outlet of the filtering assembly are matched, and an alarm is given when the pressure difference value of the inlet and the outlet accords with a set value. According to the invention, blockage is timely treated, so that the gas entering the component analysis equipment is purer, the analysis result is more accurate, the blockage and the influence possibly caused by the blockage are reduced, and the use stability and safety of the air separation tower and the analysis device are improved; the problem that stable use and safety of the air separation tower are affected by blockage of the gas analysis device is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of air separation oxygen production equipment, and specifically relates to an analysis device and an air analysis system. Background Art

[0002] The air separation tower is a device used to separate air and plays an important role in the oxygen production process. In order to ensure the stable use and safety of the air separation tower, it is necessary to analyze the medium composition in the air separation tower in real time.

[0003] At present, the analysis of the medium in the air separation tower is achieved by vaporizing the gas in the air separation tower through a vaporizer and then flowing it into the analysis device. This analysis method is prone to the powder and related impurities carried by the gas in the air separation tower clogging the pipeline, affecting the analysis of the gas composition in the air separation tower and affecting the stable use and safety of the air separation tower. Utility Model Content

[0004] The present application provides an analysis device and an air analysis system, which are intended to at least to some extent solve the problem that blockage of a gas analysis device affects the stable use and safety of an air separation tower.

[0005] In some embodiments of the present application, an analysis device is provided for analyzing a medium in an air separation tower, comprising:

[0006] a vaporizer, for receiving the medium to vaporize the medium into gas;

[0007] a filter assembly, the inlet of which is in communication with the vaporizer to receive the gas, the filter assembly comprising at least two filters connected in series;

[0008] A pressure detector, which detects the pressure of the inlet and the outlet respectively, and alarms when the pressure difference between the inlet and the outlet meets the set value;

[0009] A component analysis device is connected to the outlet of the filter assembly to analyze the gas.

[0010] In some embodiments, the analysis device further comprises:

[0011] An ash hopper is detachably connected to the filter, and is used to receive impurities filtered by the filter.

[0012] In some embodiments, the filter assembly further includes a control valve respectively provided at the input end and the output end of each filter, and the control valve is used to control the on-off of the input end or the output end.

[0013] In some embodiments, at least two of the filters are a cyclone separation filter and a cartridge filter.

[0014] In some embodiments, the analytical device comprises at least two of the filtering components connected in parallel.

[0015] In some embodiments, the filter comprises:

[0016] A body, provided with an input end, a filter cavity and an output end, wherein the filter cavity receives the gas through the input end, and the output end is connected with the filter cavity to discharge the gas;

[0017] A filter element is connected to the body and located in the filter cavity, and the filter element filters the gas.

[0018] In some embodiments, the filter element is a filter element, and the filter further comprises:

[0019] A conical guide plate is connected to the body and is located in the filter cavity. The conical guide plate is distributed around the filter element to increase the contact area between the gas entering through the input end and the filter element.

[0020] In some embodiments, the filter element is a spiral blade, and the spiral blade is located between the input end and the output end.

[0021] In some embodiments, the filter further comprises:

[0022] An air outlet pipe is inserted into the main body and one end of the air outlet pipe forms the output end, and the air outlet pipe is connected to the spiral blade.

[0023] In some embodiments, an air analysis system is provided, the air analysis system comprising:

[0024] Air separation tower;

[0025] As the above-mentioned analytical device, the vaporizer is connected to the medium outflow end of the air separation tower.

[0026] Advantageous effects provided by one or more embodiments of the present application:

[0027] The analysis device can be used to analyze the medium in the air separation tower. The vaporizer in the analysis device can receive the medium and vaporize the medium into gas. The filter assembly whose inlet is connected to the vaporizer can receive the gas, and then the gas is filtered by at least two filters in series in the filter assembly. The filter can filter the powder or impurities in the gas, reducing the possibility of the powder or impurities blocking the pipeline or the analysis equipment. The at least two filters in series can reduce the pressure required by each filter to filter the gas, reducing the possibility of filter blockage. With the pressure detector that detects the inlet and the outlet of the filter assembly respectively, and alarms when the pressure difference between the inlet and the outlet meets the set value, the blockage that may occur inside the filter assembly can be handled in time, the gas entering the component analysis equipment can be made purer, the analysis result can be ensured to be more accurate, and the blockage and the possible impact of the blockage can be reduced, the stability and safety of the use of the air separation tower and the analysis device can be improved, and the problem of the blockage of the gas analysis device affecting the stable use and safety of the air separation tower can be solved to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram of the structure of an analysis device in one or more embodiments of the present application is shown.

[0030] Figure 2 A schematic structural diagram of a filter in one or more embodiments of the present application is shown.

[0031] Figure 3 A schematic diagram of the structure of another filter in one or more embodiments of the present application is shown.

[0032] Figure 4 A top view of another filter according to one or more embodiments of the present application is shown.

[0033] Figure 5 A schematic diagram of the structure of an air analysis system in one or more embodiments of the present application is shown.

[0034] Explanation of the reference numerals: 1. vaporizer; 2. filter assembly; 21. filter; 211. body; 2111. input end; 2112. filter chamber; 2113. output end; 2114. top; 2115. bottom; 21151. discharge hole; 21152. plug; 212. filter element; 213. outlet pipe; 214. conical guide plate; 215. screw; 216. fixing plate; 22. control valve; 23. ash hopper; 3. pressure detector; 4. component analysis equipment; 100. air separation tower. DETAILED DESCRIPTION

[0035] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] See also Figure 1 , Figure 1 The schematic diagram of the structure of the analysis device in one or more embodiments of the present application is shown. In some embodiments of the present application, an analysis device is provided, which is used to analyze the medium in the air separation tower 100, including:

[0037] The vaporizer 1 is used for receiving a medium to vaporize the medium into a gas.

[0038] The filter assembly 2 has an inlet connected to the vaporizer 1 to receive gas, and the filter assembly 2 includes at least two filters 21 connected in series.

[0039] The pressure detector 3 detects the pressure of the inlet and the outlet of the filter assembly 2 respectively, and alarms when the pressure difference between the inlet and the outlet meets the set value.

[0040] The component analysis device 4 is connected to the outlet to analyze the gas.

[0041] The analysis device can be used to analyze the medium in the air separation tower 100. The vaporizer 1 in the analysis device can receive the medium and vaporize the medium into gas. The filter assembly 2 whose inlet is connected to the vaporizer 1 can receive the gas, and then the gas is filtered by at least two filters 21 connected in series in the filter assembly 2. The filter 21 can filter the powder or impurities in the gas, reducing the possibility of the powder or impurities blocking the pipeline or the analysis equipment. The at least two filters 21 connected in series can reduce the pressure required by each filter 21 to filter the gas, reducing the possibility of the filter 21 blocking. With the pressure detector 3 that detects the inlet and the outlet of the filter assembly 2 respectively, and alarms when the pressure difference between the inlet and the outlet meets the set value, the possible blockage inside the filter assembly 2 can be processed in time, the gas entering the component analysis device 4 can be made purer, the analysis result can be ensured to be more accurate, and the blockage and the possible impact of the blockage can be reduced, the use stability and safety of the air separation tower 100 and the analysis device are improved, and the problem of the blockage of the gas analysis device affecting the stable use and safety of the air separation tower 100 is solved to a certain extent.

[0042] And because of the presence of powder impurities such as molecular sieves in the conventional air separation tower 100, they will travel with the gas inside the main cooling tower, enter the analysis pipeline, block the analysis point, and cause the analysis value to be unstable and inaccurate, with false alarms, fluctuations, or even no values, which has a great impact on the monitoring of the hydrocarbon values ​​of the main cooling tower, and also poses a potential hazard to air separation safety. The addition of the filter 21 in the filter assembly 2 in the present application can reduce the possibility of the component analysis device 4 being blocked and improve the accuracy of the analysis results. Impurities and powdered molecular sieve powder in the gas can also be filtered, and finally enter the component analysis device for analysis to ensure the accuracy of the hydrocarbon values.

[0043] In some embodiments, the vaporizer 1 may be a flash vaporizer 1. The effect of vaporizing the medium is better. When the vaporizer 1 receives the medium from the air separation tower 100, the fluid such as liquid oxygen in the air separation tower 100 can be vaporized. This application does not limit this. The vaporizer 1 may also be a vaporizer 1 of other types or specifications except the flash vaporizer 1, and this application does not limit this.

[0044] In some embodiments, the analysis device includes at least two parallel filter assemblies 2. At least two parallel filter assemblies 2 can realize that when the filter 21 is cleaned, there is no need to stop the entire device, ensuring that the analysis device is stable and reliable at all times, and a pressure difference measuring device is provided. According to the change of the pressure difference, when the pressure difference exceeds a certain value, the filter 21 is cleaned in time.

[0045] In some embodiments, the pressure detector 3 can detect the pressure at the inlet and outlet of each filter component 2, and obtain the difference between the pressure corresponding to the inlet and the pressure corresponding to the outlet. When the filter 21 is blocked or too many impurities are filtered, the pressure difference between the inlet and the outlet will increase to the set value and an alarm will be issued.

[0046] It should be noted that in each filter assembly 2, at least two filters 21 are connected in series, at least two filters 21 are connected in sequence, at least two filter assemblies 2 are connected in parallel, the inlet of each filter assembly 2 is connected to the same position, and the outlet of each filter assembly 2 is connected to the same position, and the same position can be, for example, the inlet of the air separation tower 100 or the component analysis device 4. The inlet of the filter assembly 2 is configured as the corresponding inlet of the filter 21 connected to the vaporizer 1, and the outlet of the filter assembly 2 is configured as the corresponding outlet of the filter 21 connected to the component analysis device 4.

[0047] In some embodiments, the pressure detector 3 may be configured as, for example, a differential pressure transmitter or a pressure meter, etc., which is not limited in the present application.

[0048] In some embodiments, the filter assembly 2 further includes a control valve 22 respectively disposed at the input end 2111 and the output end 2113 of each filter 21, and the control valve 22 is used to control the on-off of the input end 2111 or the output end 2113. The addition of the control valve 22 can facilitate the control of the filtering effect of the filter 21 and facilitate the cleaning of the filter 21.

[0049] In some embodiments, the control valve 22 may be a solenoid valve or a mechanical valve, which is not limited in the present application.

[0050] In some embodiments, the analysis device further includes an ash hopper 23 detachably connected to the filter 21 , and the ash hopper 23 is used to receive impurities filtered by the filter 21 .

[0051] The ash hopper 23 is detachably connected to the filter 21 , and can receive and process the impurities filtered by the filter 21 , which is also helpful to reduce the possibility of clogging of the filter 21 .

[0052] In some embodiments, the ash hopper 23 and the filter 21 may be connected by fasteners, bonding, or stoppers, which is not limited in the present application.

[0053] In some embodiments, the at least two filters 21 are respectively a cyclone separation filter 21 and a filter cartridge filter 21. The at least two filters 21 are respectively a cyclone separation filter 21 and a filter cartridge filter 21, which can ensure the filtering effect while reducing the overall preparation cost.

[0054] In some embodiments, the filter assembly 2 may also include two filters 21, and the two filters 21 are respectively a cyclone separation filter 21 and a filter cartridge filter 21, and the filter cartridge filter 21 can be connected to the vaporizer 1 through the cyclone separation filter 21. The cyclone separation filter 21 is easier to clean than the filter cartridge filter 21, and filtering the gas before the filter cartridge filter 21 can reduce the filtering cost of the filter cartridge filter 21, and can also effectively reduce the possibility of clogging of the filter cartridge filter 21, thereby improving the stability and safety of the analysis device.

[0055] It should be noted that the cyclone separation filter 21 is mainly a filter 21 that rotates the gas to achieve filtration, and the filter element filter 21 is a filter 21 that filters the gas through the filter element. In some embodiments provided in the present application, the filtering principle of the filter 21 can also be gravity separation filtration or collision separation filtration, or a filter 21 that mixes these separation and filtration principles, and the present application does not limit this.

[0056] Figure 2 A schematic diagram of the structure of a filter in one or more embodiments of the present application is shown, referring to Figure 2 In some embodiments, the filter element 212 may be a filter element, and the filter 21 further includes:

[0057] The conical guide plate 214 is connected to the body 211 and is located in the filter cavity 2112. The conical guide plate 214 is distributed around the filter element to increase the contact area between the gas entering through the input end 2111 and the filter element.

[0058] The conical guide plate 214 increases the contact area between the gas and the filter element, which can improve the filtering effect of the filter element on the gas, thereby improving the analysis effect and accuracy of the component analysis equipment 4 on the gas, which is beneficial to improving the use stability and safety of the analysis device.

[0059] In some embodiments, the filter 21 may be a split structure, and may include a top 2114 and a bottom 2115, the top 2114 and the bottom 2115 are connected by snaps to form a body 211, and the filter element and the conical guide plate 214 may be connected to the top 2114. The filter 21 is easy to clean, and the bottom 2115 and the top 2114 are separable, and the bottom 2115 can receive impurities separated from the gas under the action of gravity, so that the impurities are separated from the bottom 2115, and the impurities can be separated by gravity or the filter element, which reduces the possibility of clogging of the filter 21 and improves the filtering effect on the gas.

[0060] In some embodiments, the filter 21 may further include a screw 215 connected to the top 2114, and the filter element is connected to the top 2114 and may be connected to the screw 215 via a fixing plate 216 of the filter 21, thereby improving the stability and safety of the filter element.

[0061] In some embodiments. The filter 21 whose filter element 212 is a spiral blade can be configured as a cyclone separation filter 21, and the filter 21 whose filter element 212 is a filter element can be configured as a filter element filter 21. In some embodiments, the filter element 212 can also be a honeycomb or other structure. The input end 2111 and the output end 2113 of the filter 21 can be configured as holes or openings on the body 211, or can be configured as pipes or pipelines inserted into the body 211. This application does not limit this.

[0062] In some embodiments, the bottom 2115 may be provided with a discharge hole 21151 communicating with the filter chamber 2112, and a plug 21152 cooperating with the discharge hole 21151, so as to facilitate the discharge of impurities.

[0063] Figure 3 FIG. 1 shows a schematic diagram of the structure of another filter in one or more embodiments of the present application. Figure 4 A top view of another filter in one or more embodiments of the present application is shown, referring to Figure 3 , 4 In some embodiments, the filter 21 comprises:

[0064] The body 211 is provided with an input end 2111, a filter cavity 2112 and an output end 2113. The filter cavity 2112 receives gas through the input end 2111, and the output end 2113 is connected with the filter cavity 2112 to discharge gas.

[0065] The filter element 212 is connected to the body 211 and is located in the filter cavity 2112 , and the filter element 212 filters the gas.

[0066] The filter cavity 2112 provided in the body 211 of the filter 21 provides a storage or circulation space, and the input end 2111 and the output end 2113 can respectively realize the reception and discharge of gas, and after the gas enters the filter cavity 2112, the gas can be filtered by the filter element 212. It is convenient to prepare and can also effectively filter the gas.

[0067] In some embodiments, the filter element 212 is a spiral blade, and the spiral blade is located between the input end 2111 and the output end 2113. The spiral blade is located between the input end 2111 and the output end 2113, and the gas can enter from the input end 2111 and contact the spiral blade, and the spiral blade guides the gas and makes the gas rotate. In the process of contacting with the spiral blade, the gas of different masses and the powder particle impurities in the gas are separated, and the gas is separated from the impurities to achieve gas filtering.

[0068] In some embodiments, the filter 21 further comprises:

[0069] The air outlet pipe 213 is inserted into the body 211 and one end of the air outlet pipe 213 forms an output end 2113 . The air outlet pipe 213 is connected to the spiral blade.

[0070] The gas outlet pipe 213 can facilitate the separation of gas from impurities such as powder particles and guide the gas.

[0071] In some embodiments, the end of the gas outlet pipe 213 inserted into the body 211 may have a tube diameter variation, which is beneficial to the collection and guidance of the gas.

[0072] In some embodiments, the bottom 2115 of the body 211 can be detachably connected to the ash hopper 23, and the ash hopper 23 can collect the falling powder particles and impurities. The spiral blade can surround the outlet pipe 213 and be connected to the outlet pipe 213 to improve the stability of the spiral blade. The axis between the input end 2111 of the filter 21 and the spiral blade can have an eccentric angle, so that the spiral blade can make the gas flow rotate and improve the separation effect.

[0073] In some embodiments, the component analysis device 4 may be, for example, a component analysis instrument or a gas analyzer, etc. This application does not impose any limitation on this.

[0074] Figure 5 A schematic diagram of the structure of an air analysis system in one or more embodiments of the present application is shown, referring to Figure 5 In some embodiments, an air analysis system is provided, the air analysis system comprising:

[0075] Air separation tower 100.

[0076] As the above-mentioned analysis device, the vaporizer 1 is connected to the medium outflow end of the air separation tower 100.

[0077] The structure of the analysis device and its technical effects can be referred to above, and will not be described in detail here. The air analysis system includes an air separation tower 100, which is convenient for processing, filtering and analyzing the medium in the air separation tower 100.

[0078] In some embodiments, the air analysis system may further include, for example, an editable logic controller and a host computer, which may be used to receive signals and data from the pressure detector 3 and the control valve 22. This may facilitate the collection and monitoring of data, and also help improve the stability and safety of the air analysis system.

[0079] It should be noted that in the present application, any communication or connection between the devices, components or structures for medium or gas transfer can be achieved through pipes or pipelines, and the present application does not impose any restrictions on this.

[0080] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0081] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0082] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An analysis device, characterized in that: Applied to analyze the media in the air separation tower, including: a vaporizer, for receiving the medium to vaporize the medium into gas; a filter assembly, the inlet of which is in communication with the vaporizer to receive the gas, the filter assembly comprising at least two filters connected in series; A pressure detector, which detects the pressure of the inlet and the outlet of the filter assembly respectively, and alarms when the pressure difference between the inlet and the outlet meets the set value; A component analysis device is connected to the outlet to analyze the gas.

2. The analysis device according to claim 1, characterized in that The analysis device also includes: An ash hopper is detachably connected to the filter, and is used to receive impurities filtered by the filter.

3. The analysis device according to claim 1, characterized in that The filter assembly further comprises a control valve respectively arranged at the input end and the output end of each filter, and the control valve is used to control the on-off of the input end or the output end.

4. The analysis device according to any one of claims 1 to 3, characterized in that At least two of the filters are a cyclone separation filter and a filter cartridge filter, respectively, and the filter cartridge filter is connected to the vaporizer through the cyclone separation filter.

5. The analysis device according to any one of claims 1 to 3, characterized in that: The analysis device comprises at least two filter assemblies connected in parallel.

6. The analysis device according to any one of claims 1 to 3, characterized in that The filters include: A body, provided with an input end, a filter cavity and an output end, wherein the filter cavity receives the gas through the input end, and the output end is connected with the filter cavity to discharge the gas; A filter element is connected to the body and located in the filter cavity, and the filter element filters the gas.

7. The analysis device according to claim 6, characterized in that The filter element is a filter element, and the filter further comprises: A conical guide plate is connected to the body and is located in the filter cavity. The conical guide plate is distributed around the filter element to increase the contact area between the gas entering through the input end and the filter element.

8. The analysis device according to claim 6, characterized in that The filter element is a spiral blade, and the spiral blade is located between the input end and the output end.

9. The analysis device according to claim 8, characterized in that The filter also includes: An air outlet pipe is inserted into the main body and one end of the air outlet pipe forms the output end, and the air outlet pipe is connected to the spiral blade.

10. An air analysis system, characterized in that: The air analysis system comprises: Air separation tower; The analytical device according to any one of claims 1 to 9, wherein the vaporizer is connected to the medium outflow end of the air separation tower.

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