CN220385989U - Filter for liquid ammonia engine - Google Patents
Filter for liquid ammonia engine Download PDFInfo
- Publication number
- CN220385989U CN220385989U CN202321530179.2U CN202321530179U CN220385989U CN 220385989 U CN220385989 U CN 220385989U CN 202321530179 U CN202321530179 U CN 202321530179U CN 220385989 U CN220385989 U CN 220385989U
- Authority
- CN
- China
- Prior art keywords
- filter
- liquid ammonia
- shell
- metal folding
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910021529 ammonia Inorganic materials 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Cyclones (AREA)
Abstract
The utility model discloses a filter for a liquid ammonia engine, which comprises a filter shell, a filter base, a rough filtration cyclone sheet and a metal folding filter element, wherein the filter shell is provided with a filter inlet and a filter outlet; a liquid ammonia inlet and a liquid ammonia outlet are formed in the filter base, a fixing boss is arranged at the bottom of the inner wall of the filter shell, and the filter base is connected with the fixing boss through a central pull rod and a positioning column; the rough filtering cyclone sheet and the metal folding filter element are sequentially fixed on the central pull rod and the positioning column from top to bottom, and the metal folding filter element is connected with the central pull rod through a positioning nut and a bolt; the bottom of the filter shell is provided with a drain valve, a magnetic rod is arranged on the drain valve, and the magnetic rod is positioned in the filter shell. The utility model can ensure that the whole liquid ammonia supply system has higher filtering efficiency and lower flow resistance in the whole life cycle, and the microporous stainless steel metal folding filter element is used for realizing back flushing and can be repeatedly utilized, thereby reducing the later maintenance cost of users.
Description
Technical Field
The utility model belongs to the technical field of filters, and particularly relates to a filter for a liquid ammonia engine.
Background
At present, in the process of producing liquid ammonia in domestic chemical industry, powder metal filters are generally adopted to filter the liquid ammonia, the purpose is achieved only through a single-stage filtering mode of traditional filter paper or non-woven fabrics before the liquid ammonia enters an ammonia pump, a filter element needs to be replaced at intervals, the later filtering efficiency is low, the flow resistance is higher, and the filtering effect of the filter on iron powder and ammonia oil in the liquid ammonia is very poor, so that abnormal corrosion and abrasion exist on the ammonia pump and an ammonia injector in an ammonia engine, and the operation and the service life of the ammonia pump and the ammonia injector are influenced.
Therefore, the high-pressure liquid ammonia in the ammonia storage bottle needs to be filtered before entering the ammonia pump of the ammonia engine.
Disclosure of Invention
The utility model aims to provide a filter for a liquid ammonia engine, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the filter for the liquid ammonia engine comprises a filter shell, a filter base, a rough filtration cyclone sheet and a metal folding filter element;
the filter base is provided with a liquid ammonia inlet and a liquid ammonia outlet, the bottom of the inner wall of the filter shell is provided with a fixed boss, and the filter base is connected with the fixed boss through a central pull rod and a positioning column;
the rough filtering cyclone sheet and the metal folding filter element are sequentially fixed on the central pull rod and the positioning column from top to bottom, and the metal folding filter element is connected with the central pull rod through a positioning nut and a bolt;
the bottom of the filter shell is provided with a liquid discharge valve, the liquid discharge valve is provided with a magnetic rod, and the magnetic rod is positioned inside the filter shell.
Preferably, sealing rings are arranged between the filter base and the filter shell and at two ends of the metal folding filter element.
Preferably, the center pull rod is in threaded connection with the positioning column, and the positioning column is in threaded connection with the fixing boss.
The utility model has the technical effects and advantages that:
1. the whole liquid ammonia supply system can be ensured to have higher filtering efficiency and lower flow resistance in the whole life cycle, and the microporous stainless steel metal folding filter element can be removed to realize back flushing, so that the liquid ammonia supply system can be repeatedly utilized, and the later maintenance cost of a user is reduced.
2. Through the magnetic rod that sets up on the drain valve, can be with the large granule iron fillings that deposit in the casing bottom by the magnetic rod suction.
3. The coarse filtration cyclone sheet can carry out centrifugal pre-separation on large particle impurities such as scrap iron and the like in liquid ammonia and free water, and the free water precipitated at the bottom of the shell after centrifugal separation is discharged in time through the water drain valve.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1 a filter base, 2 a filter shell, 3 a coarse filtration cyclone sheet, 4 a positioning nut, 5 a metal folding filter element, 6 a central pull rod, 7 a liquid ammonia inlet, 8 a liquid discharge valve, 9 a fixing boss, 10 a positioning column, 11 a magnetic rod and 12 a liquid ammonia outlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Fig. 1 shows a specific embodiment of a filter for a liquid ammonia engine according to the present utility model: the filter comprises a filter shell 2, a filter base 1, a coarse filtration cyclone sheet 3 and a metal folding filter element 5;
a liquid ammonia inlet 7 and a liquid ammonia outlet 12 are formed in the filter base 1, a fixed boss 9 is arranged at the bottom of the inner wall of the filter shell 2, and the filter base 1 and the fixed boss 9 are connected with a positioning column 10 through a central pull rod 6;
the center pull rod 6 and the positioning column 10 are sequentially fixed with a rough filtration cyclone sheet 3 and a metal folding filter element 5 from top to bottom, and the metal folding filter element 5 is connected with the center pull rod 6 through a positioning nut 4 and a bolt;
a drain valve 8 is arranged at the bottom of the filter shell 3, a magnetic rod 11 is arranged on the drain valve 8, and the magnetic rod 11 is positioned in the filter shell 2;
the filter base 1 and the filter shell 2 are sealed by O-shaped rings, and the dirty side and the clean side of the metal folding filter element 5 are sealed and isolated by rubber gaskets at two ends of the filter element assembly;
the center pull rod 6 is in threaded connection with the positioning column 10, and the positioning column 10 is in threaded connection with the fixing boss 9.
The filtration process is as follows: liquid ammonia is discharged from a liquid ammonia bottle and enters an inlet of a filter base through an ammonia conveying pipeline, then large-particle impurities such as scrap iron and the like in the liquid ammonia and free water are subjected to centrifugal pre-separation through a rough filtration cyclone sheet, the free water precipitated at the bottom of a shell after centrifugal separation is timely discharged through a water drain valve, the large-particle scrap iron precipitated at the bottom of the filter shell is sucked by a magnetic rod, and then the liquid ammonia is subjected to interception and filtration through a microporous metal folding filter element; after a period of use, the stainless steel metal folding filter element can be removed for back flushing and then recycled; and clean liquid ammonia after filtration enters the ammonia pump and the ammonia injector through the outlet of the filter base, so that abnormal corrosion and abrasion of the liquid ammonia are avoided.
The applicant has further stated that the present utility model is described by the above examples as to the implementation method and apparatus structure of the present utility model, but the present utility model is not limited to the above embodiments, i.e. it does not mean that the present utility model must be implemented by the above methods and structures. It should be apparent to those skilled in the art that any modifications of the present utility model, equivalent substitutions for the implementation method selected for the present utility model, addition of steps, selection of specific modes, etc., fall within the scope of the present utility model and the scope of the disclosure.
The present utility model is not limited to the above embodiments, and all modes of achieving the object of the present utility model by adopting the structure and method similar to those of the present utility model are within the scope of the present utility model.
Claims (3)
1. A filter for liquid ammonia engines, comprising a filter housing (2), characterized in that: the filter also comprises a filter base (1), a coarse filtration cyclone sheet (3) and a metal folding filter element (5);
a liquid ammonia inlet (7) and a liquid ammonia outlet (12) are formed in the filter base (1), a fixing boss (9) is arranged at the bottom of the inner wall of the filter shell (2), and the filter base (1) is connected with the fixing boss (9) through a central pull rod (6) and a positioning column (10);
the center pull rod (6) and the positioning column (10) are sequentially fixed with a rough filtration cyclone sheet (3) and a metal folding filter element (5) from top to bottom, and the metal folding filter element (5) is connected with the center pull rod (6) through a positioning nut (4) and a bolt;
the bottom of the filter shell (2) is provided with a drain valve (8), the drain valve (8) is provided with a magnetic rod (11), and the magnetic rod (11) is positioned inside the filter shell (2).
2. A filter for a liquid ammonia engine according to claim 1, wherein: sealing rings are arranged between the filter base (1) and the filter shell (2) and at two ends of the metal folding filter element (5).
3. A filter for a liquid ammonia engine according to claim 1, wherein: the center pull rod (6) is in threaded connection with the positioning column (10), and the positioning column (10) is in threaded connection with the fixing boss (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321530179.2U CN220385989U (en) | 2023-06-15 | 2023-06-15 | Filter for liquid ammonia engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321530179.2U CN220385989U (en) | 2023-06-15 | 2023-06-15 | Filter for liquid ammonia engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220385989U true CN220385989U (en) | 2024-01-26 |
Family
ID=89602885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321530179.2U Active CN220385989U (en) | 2023-06-15 | 2023-06-15 | Filter for liquid ammonia engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220385989U (en) |
-
2023
- 2023-06-15 CN CN202321530179.2U patent/CN220385989U/en active Active
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|---|---|---|---|
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| GR01 | Patent grant |