CN114408847B - Electric control device for filling cooling liquid on ground - Google Patents
Electric control device for filling cooling liquid on ground Download PDFInfo
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- CN114408847B CN114408847B CN202111641465.1A CN202111641465A CN114408847B CN 114408847 B CN114408847 B CN 114408847B CN 202111641465 A CN202111641465 A CN 202111641465A CN 114408847 B CN114408847 B CN 114408847B
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- filling
- relay
- liquid level
- liquid
- contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
- B67D7/16—Arrangements of liquid meters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
- B67D7/22—Arrangements of indicators or registers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application belongs to the technical field of aircraft liquid cooling system control, and relates to an electric control device for filling cooling liquid on the ground. The device comprises a filling switch (1), a power switch (2), a liquid level sensor (3), a relay (4) and a liquid level indicating device, wherein the liquid level sensor (3) is provided with a 28V signal contact (31), a low liquid level contact (32) and a normal liquid level contact (33). The signal of the liquid level sensor is converted through the relay, the low liquid level indicator lamp is controlled to be lighted, the normal liquid level indicator lamp is controlled to be lighted, and the ground filling vehicle stops filling liquid. The liquid level sensor, the liquid level indicating device and the relay are connected, the filling completion signal is given through the relay, the liquid filling process is automatically stopped, the hierarchical structure of the control logic is clear and reliable, and the maintainability is good.
Description
Technical Field
The application belongs to the technical field of aircraft liquid cooling system control, and particularly relates to an electric control device for filling cooling liquid on the ground.
Background
Some electronic equipment or fuel oil systems on board the aircraft need to be cooled by cooling liquid, and the cooling liquid is usually injected into a liquid cooling system of the aircraft on the ground through liquid injection equipment on the liquid cooling vehicle.
The existing liquid injection control mode is that the ground liquid cooling vehicle is manually closed to stop liquid injection through the state of the liquid position indicator lamp during filling. However, due to the hysteresis of the manual operation, spillage of the liquid tends to result.
Disclosure of Invention
In order to solve the technical problem, the application provides a ground filling coolant liquid electric control device which can automatically fill or stop filling according to detected oil liquid of a liquid cooling system in a filling village.
The ground filling cooling liquid electric control device mainly comprises a filling switch, a power switch, a liquid level sensor, a relay and a liquid level indicating device, wherein the liquid level sensor is provided with a 28V signal contact, a low liquid level contact and a normal liquid level contact;
the 28V signal contact is connected with the ground service bus bar through the power switch, and a 28V power signal flows from the ground service bus bar to the 28V signal contact through the power switch;
the low-liquid-level contact is connected with a coil of the relay and used for controlling the closing of the relay, the relay is provided with three groups of contacts, a 28V power signal of the ground service bus bar is sent to the electric connector through a first group of contacts of the relay and a filling contact of a filling switch connected with the first group of contacts, the rest of the switches of the relay are opened, the 28V power signal of the ground service bus bar is sent to the electric connector through a second group of contacts of the relay and a stopping contact of the filling switch connected with the second group of contacts of the relay in the relay closing state, and meanwhile, the third group of contacts of the relay are connected with a liquid-level low-indicating lamp of a liquid-level indicating device, and the first group of contacts of the relay are opened;
the normal liquid level contact is connected with a liquid level normal indicator lamp of the liquid level indicator device;
the liquid adding device is connected with the electric connector and is used for automatically stopping the liquid adding process according to a filling signal of the filling switch or a 28V electric signal sent by the stopping signal.
Preferably, the liquid level indicating device further comprises a lamp detection switch, one end of the lamp detection switch is connected with the liquid level low indicator lamp and the liquid level normal indicator lamp, and the other end of the lamp detection switch is connected with the ground service bus bar through a power switch.
Preferably, the relay is a delay relay, and the relay is disconnected after delay setting time when the oil liquid is filled from low liquid level to normal liquid level.
Preferably, the filling switch is connected with the filling device through an external plug.
Preferably, the low level contact is also connected to an electromechanical management system.
The liquid level sensor, the liquid level indicating device and the relay are connected, the filling completion signal is given through the relay, the liquid filling process is automatically stopped, the hierarchical structure of the control logic is clear and reliable, and the maintainability is good.
Drawings
FIG. 1 is a schematic diagram of a ground-filling coolant electrical control circuit in accordance with a preferred embodiment of the present application.
Fig. 2 is a view of a floor-filling coolant operation panel according to the embodiment of fig. 1 of the present application.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the following describes the technical solutions in the embodiments of the present application in more detail with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without undue burden are within the scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The application provides an electric control device for filling cooling liquid on the ground, which mainly comprises a filling switch 1, a power switch 2, a liquid level sensor 3, a relay 4 and a liquid level indicating device, wherein the liquid level sensor 3 is provided with a 28V signal contact 31, a low liquid level contact 32 and a normal liquid level contact 33;
the 28V signal contact 31 is connected with a ground service bus bar through the power switch 2, and a 28V power signal flows from the ground service bus bar to the 28V signal contact 31 through the power switch 2;
the low-liquid-level contact 32 is connected with a coil of the relay 4 and is used for controlling the closing of the relay 4, the relay 4 is provided with three groups of contacts, in the open state of the relay 4, a 28V power signal of the ground service bus bar is sent to an electric connector through a first group of contacts of the relay 4 and a filling contact of a filling switch 1 connected with the first group of contacts, the rest of the switches of the relay 4 are opened, in the closed state of the relay 4, the 28V power signal of the ground service bus bar is sent to the electric connector through a second group of contacts of the relay 4 and a stopping contact of the filling switch 1 connected with the second group of contacts, meanwhile, a liquid-level low indicator 7 of a liquid-level indicating device is connected through a third group of contacts of the relay 4, and the first group of contacts of the relay 4 are opened;
the normal liquid level contact 33 is connected with a liquid level normal indicator lamp 6 of the liquid level indicator device;
the liquid adding device is connected with the electric connector and is used for automatically stopping the liquid adding process according to a 28V electric signal sent by a filling signal or a stopping signal of the filling switch 1.
Based on the device, the electric control principle of filling the cooling liquid into the ground is described.
Referring to fig. 1 and 2, when filling the ground, the power switch is turned on, the filling switch is placed at the "filling" position, and when the filling pipeline is ready, the cooling liquid starts to be filled from the ground liquid cooling vehicle to the liquid cooling system of the aircraft.
The stock information of the cooling liquid on the aircraft is provided by a liquid level sensor, at the beginning of the filling, the liquid level sensor outputs a low liquid level signal which causes the relay 4 to be switched on, so that the three switches of the relay 4 in fig. 1 deflect to the left, i.e. in the relay 4, the contact 1 is connected with the contact 3, the contact 4 is connected with the contact 6, and the contact 7 is connected with the contact 9, wherein when the contact 7 is connected with the contact 9, a yellow low liquid level indicator lamp is lighted, at this time, the filling switch 1 is in a filling state due to the fact that the contact 1 is connected with the contact 3, but no 28V electric signal is generated, and the filling equipment connected with the filling switch 1 does not receive the 28V electric signal, so that the filling is continuously carried out.
When the cooling liquid is filled to the normal position, the liquid level sensor outputs a liquid level normal signal, a green liquid level normal indicator lamp is lighted, meanwhile, due to liquid level change, the low liquid level contact 32 does not generate an electric signal any more, the relay 4 is cut off, so that three switches of the relay 4 in fig. 1 deflect rightwards, namely, in the relay 4, the contact 1 is connected with the contact 2, the contact 4 is connected with the contact 5, the contact 7 is connected with the contact 8, according to the drawing, the contact 7 is connected with the contact 8 to enable the yellow low liquid level indicator lamp to be extinguished, the contact 1 is connected with the contact 2, 28V direct current is enabled to convey 28V electric signals to the filling switch 1 through the relay 4, and due to the fact that the filling switch closes the filling contact at the moment, the 28V electric signals are continuously supplied to an externally connected plug and a liquid filling device connected with the relay 4, the ground liquid filling vehicle is provided, and the liquid filling vehicle stops filling according to the signals.
In the process of filling liquid, namely in a low liquid level state, the relay 4 is closed, the contact 4 is connected with the contact 6, the liquid level sensor transmits 28V electric signals to the filling switch through the relay, but the filling switch closes the filling contact, so that the 28V electric signals are not supplied to the ground liquid filling vehicle, if the liquid filling is needed to be stopped for some reason, the filling switch is placed in a stop position, and the 28V power supply can be supplied to the ground liquid filling vehicle to stop the liquid filling through the 4-6 contact of the relay 4 and the external connection plug through the 4-6 contact of the filling switch.
In some alternative embodiments, the liquid level indicating device further comprises a light detection switch 5, one end of the light detection switch 5 is connected with a liquid level low indicator lamp 7 and a liquid level normal indicator lamp 6, and the other end is connected with a ground service bus bar through the power switch 2. When filling the ground, the 'light check' switch is pressed first, so that the indicator light can be checked for integrity.
In some alternative embodiments, the relay 4 is a time delay relay, and when the oil filling is from low liquid level to normal liquid level, the relay 4 is opened after a set time delay. The delay time can be determined according to the capacity and the liquid injection speed of the cooling liquid which can be continuously accepted by the airborne liquid cooling system after the low liquid level signal of the liquid level sensor stops.
In some alternative embodiments, the filling switch 1 is connected to the filling device by an external plug.
In some alternative embodiments, the low level contact 32 is also connected to an electromechanical management system. When the contact 7 of the relay 4 is connected with the contact 9, the yellow low-liquid-level indicator lamp is lightened, and meanwhile, the low-liquid-level signal liquid is output to the electromechanical management system to record the stock state of the cooling liquid.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. The ground filling cooling liquid electric control device is characterized by comprising a filling switch (1), a power switch (2), a liquid level sensor (3), a relay (4) and a liquid level indicating device, wherein the liquid level sensor (3) is provided with a 28V signal contact (31), a low liquid level contact (32) and a normal liquid level contact (33);
the 28V signal contact (31) is connected with a ground service bus bar through a power switch (2), and a 28V power signal flows from the ground service bus bar to the 28V signal contact (31) through the power switch (2);
the low-liquid-level contact (32) is connected with a coil of the relay (4) and used for controlling the closing of the relay (4), the relay (4) is provided with three groups of contacts, in the open state of the relay (4), a 28V power signal of the ground service bus bar is sent to the electric connector through a first group of contacts of the relay (4) and a filling contact of a filling switch (1) connected with the first group of contacts, the rest of the switches of the relay (4) are disconnected, in the closed state of the relay (4), the 28V power signal of the ground service bus bar is sent to the electric connector through a second group of contacts of the relay (4) and a stopping contact of the filling switch (1) connected with the second group of contacts, and meanwhile, the third group of contacts of the relay (4) are connected with a liquid-level low-indicating lamp (7) of the liquid-level indicating device, and the first group of contacts of the relay (4) are disconnected;
the normal liquid level contact (33) is connected with a liquid level normal indicator lamp (6) of the liquid level indicator device;
the liquid adding device is connected with the electric connector and is used for automatically stopping the liquid adding process according to a 28V electric signal sent by a filling signal or a stopping signal of the filling switch (1).
2. The ground filling cooling liquid electric control device according to claim 1, wherein the liquid level indicating device further comprises a light detection switch (5), one end of the light detection switch (5) is connected with a liquid level low indicator lamp (7) and a liquid level normal indicator lamp (6), and the other end of the light detection switch is connected with a ground service bus bar through a power switch (2).
3. The ground filling coolant liquid electric control device of claim 1, characterized in that the relay (4) is a time delay relay, and the relay (4) is opened after a time delay set time when the oil filling is from a low liquid level to a normal liquid level.
4. The ground filling coolant electric control device of claim 1, characterized in that the electric connector is an external plug, and the filling switch (1) is connected with the filling equipment through the external plug.
5. A ground-filling coolant electric control device as in claim 1, characterized in that said low-level contact (32) is also connected to an electromechanical management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641465.1A CN114408847B (en) | 2021-12-29 | 2021-12-29 | Electric control device for filling cooling liquid on ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641465.1A CN114408847B (en) | 2021-12-29 | 2021-12-29 | Electric control device for filling cooling liquid on ground |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114408847A CN114408847A (en) | 2022-04-29 |
| CN114408847B true CN114408847B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111641465.1A Active CN114408847B (en) | 2021-12-29 | 2021-12-29 | Electric control device for filling cooling liquid on ground |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377626B (en) * | 2022-08-24 | 2024-03-15 | 上海地铁维护保障有限公司 | Auxiliary liquid adding device for storage battery of subway train |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2088784A1 (en) * | 1990-08-03 | 1992-02-04 | John Keith Clark | Liquefied gas metering system |
| CN204374793U (en) * | 2014-12-24 | 2015-06-03 | 大连大孤山污水处理有限公司 | A kind of underground hydrops far controls warning and automatic liquid-pumping system |
-
2021
- 2021-12-29 CN CN202111641465.1A patent/CN114408847B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2088784A1 (en) * | 1990-08-03 | 1992-02-04 | John Keith Clark | Liquefied gas metering system |
| CN204374793U (en) * | 2014-12-24 | 2015-06-03 | 大连大孤山污水处理有限公司 | A kind of underground hydrops far controls warning and automatic liquid-pumping system |
Non-Patent Citations (1)
| Title |
|---|
| 内燃叉车预热指示电路的改进;吴奇峰;任家权;高文倩;;工程机械与维修(第07期);175 * |
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| CN114408847A (en) | 2022-04-29 |
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