CN113418338A - Constant-pressure fluid infusion control device - Google Patents
Constant-pressure fluid infusion control device Download PDFInfo
- Publication number
- CN113418338A CN113418338A CN202110535255.8A CN202110535255A CN113418338A CN 113418338 A CN113418338 A CN 113418338A CN 202110535255 A CN202110535255 A CN 202110535255A CN 113418338 A CN113418338 A CN 113418338A
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- CN
- China
- Prior art keywords
- electromagnetic valve
- fluid infusion
- digital controller
- electrically connected
- output digital
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- 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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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a constant-pressure fluid infusion control device, which is characterized in that a water tank is communicated with a main pipeline of a closed loop structure through fluid, and comprises a fluid path system and a control system, wherein the fluid path system comprises a first electromagnetic valve, a second electromagnetic valve and a fluid infusion pump, and the control system comprises a double-output digital controller, a first relay, a second relay and a pressure sensor. The constant-pressure liquid supplementing device is simple in principle and convenient to control, and the constant-pressure liquid supplementing device is used as an independent module, so that the cost can be reduced, and the control is stable.
Description
Technical Field
The invention relates to the field of liquid cooling equipment, in particular to a constant-pressure liquid supplementing control device.
Background
The cold liquid equipment can be divided into an open system and a closed system according to a liquid supply system, the number of the open systems is large, circulating liquid of the open system is generally contacted with air in a water tank, impurities are easily brought into a circulating liquid loop system, and waste is brought to circulating liquid replacement; the circulating liquid of the closed system flows in a closed pipeline, so that the quality of the circulating liquid is kept, and the liquid supplement is not wasted. At present, in the prior art, a control circuit board or a PLC with analog quantities such as pressure or temperature is generally adopted to perform liquid supplementing control on a closed system of cold and night equipment, which requires development cost and time cost of extra hardware and software and is not beneficial to standardization and modularization of product design.
Disclosure of Invention
The invention aims to provide a constant-pressure fluid infusion control device, which solves the problem that in the prior art, when a control circuit board or a PLC with analog quantities such as pressure or temperature is adopted for fluid infusion control of cold night equipment, standardization and modularization are difficult.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a level pressure fluid infusion controlling means for the main line fluid infusion of water tank through self fluid infusion mouth to closed circuit structure to and the pressure release mouth pressure release of main line to water tank, its characterized in that: including liquid way system and control system, wherein:
the liquid path system comprises a first electromagnetic valve, a second electromagnetic valve and a liquid supplementing pump, a pressure relief port of the water tank is communicated with the main line through the first electromagnetic valve, and a liquid supplementing port of the water tank is communicated with the main line sequentially through the liquid supplementing pump and the second electromagnetic valve;
the control system comprises a double-output digital controller, a first relay, a second relay and a pressure sensor, the pressure sensor is arranged on the main pipeline to collect hydraulic pressure in the main pipeline, the double-output digital controller is electrically connected between the live wire and the zero line through a power supply end of the double-output digital controller, an electric quantity input end of the double-output digital controller is electrically connected with the pressure sensor, one electric quantity output end of the double-output digital controller is electrically connected with the zero line through a first relay coil, the other electric quantity output end of the double-output digital controller is electrically connected with the zero line through a second relay coil, the first relay is provided with a normally open contact which is connected with the first electromagnetic valve in series and then is electrically connected between the live wire and the zero wire, the second relay is provided with a normally open contact which is connected with the second electromagnetic valve in series and then electrically connected between the live wire and the zero wire, and the second electromagnetic valve is electrically connected with the liquid supplementing pump in parallel.
The constant-pressure fluid infusion control device is characterized in that: the model of the dual-output digital controller is ohm dragon E5CC-CX2 ASM-804.
The constant-pressure fluid infusion control device is characterized in that: in the liquid path system, the first electromagnetic valve is also communicated with a first ball valve in parallel.
The constant-pressure fluid infusion control device is characterized in that: in the liquid path system, the second electromagnetic valve is also communicated with a second ball valve in parallel.
In order to maintain stable static pressure in a closed system, the invention discloses a device control system which is simple in structure and convenient to control and is used for solving constant-pressure liquid supplement of circulating liquid in the closed system. The double-output digital controller is applied to a constant-pressure fluid infusion control system through circuit design, and cost reduction and modular design of the device are facilitated.
The invention has the beneficial effects that:
1) the principle is simple, and the control is convenient.
2) The control system of the constant-pressure fluid infusion device can be independent of a large system and does not participate in the control of the large system, and the constant-pressure fluid infusion device is used as an independent module.
3) The dual-output digital controller is used as a control core, so that the cost can be reduced, and the control is stable.
Drawings
FIG. 1 is a schematic diagram of the structure of the fluid path system of the present invention.
Fig. 2 is a schematic diagram of the control system architecture of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, the constant pressure fluid infusion control device of the present invention is used for fluid communication between a water tank 1 and a main line 8 of a closed loop structure, wherein the closed loop of the main line 8 is a closed loop in which fluid flowing out from a terminal B is finally returned from a terminal a. Wherein, the water tank 1 supplies liquid to the main pipeline 8 through the liquid supply port, and the main pipeline 8 releases pressure to the water tank 1 through the pressure release port of the water tank 1.
The invention comprises a liquid path system consisting of a first electromagnetic valve 2, a first ball valve 3, a second electromagnetic valve 4, a second ball valve 5 and a liquid supplementing pump 6, and a control system consisting of a pressure sensor 7, a double-output digital controller AP with the model of ohm dragon E5CC-CX2ASM-804, a first relay and a second relay.
A pressure relief opening of the water tank 1 is communicated with one end of a first electromagnetic valve 2 through a pipeline, the other end of the first electromagnetic valve 2 is communicated with a main pipeline 8 through a pipeline, and a first ball valve 3 is communicated with two ends of the first electromagnetic valve 2 through pipelines in parallel. A fluid infusion port of the water tank 1 is communicated with an inlet of a fluid infusion pump 6 through a pipeline, an outlet of the fluid infusion pump 6 is communicated with one end of a second electromagnetic valve 4 through a pipeline, the other end of the second electromagnetic valve 4 is communicated with a main pipeline 8 through a pipeline, and a second ball valve 5 is communicated with two ends of the second electromagnetic valve 4 in parallel through pipelines; the pressure sensor 7 is installed in the main line 8 to collect hydraulic pressure inside the main line 8.
The invention adopts a double-output digital controller AP as a control core, and an L contact of the double-output digital controller AP is electrically connected with a live wire L, N contact and a zero line N. The dual-output digital controller AP is electrically connected with the pressure sensor 7 through in + and in-contacts to receive signals collected by the pressure sensor 7, an out1 contact of the dual-output digital controller AP is electrically connected with a zero line N through a first relay coil K1, and an out2 contact of the dual-output digital controller AP is electrically connected with the zero line N through a second relay coil K2. The first relay is provided with a normally open contact K1.1 which is connected with the first electromagnetic valve 2 in series and then electrically connected between the live wire L and the zero wire N; the second relay is provided with a normally open contact K2.1 which is connected with the second electromagnetic valve 4 in series and then electrically connected between the live wire L and the zero wire N, and the second electromagnetic valve 4 is electrically connected with the fluid infusion pump 6 in parallel.
The dual-output digital controller AP controls the output point to be electrified by setting the upper limit and the lower limit of the pressure value: setting a pressure value X, setting an upper limit Y1 of the pressure value, and setting an upper limit positive output of an out1 contact pressure value, namely, the pressure value is greater than the pressure value X + Y1, and the out1 is electrified; and setting the lower limit Y2 of the pressure value and the upper limit of the contact pressure value of the out2 to output reversely, namely, being smaller than the pressure values X-Y2 and electrifying the out 2.
When the actual pressure value is smaller than the set value X-Y2, the out2 is electrified, the second relay coil K2 is electrified, the second relay normally open contact K2.1 is closed, the second electromagnetic valve 4 is electrified, and the fluid infusion pump 6 is electrified. When the make-up fluid pump 6 starts to pump the circulating fluid into the main pipeline 8, and the pressure of the main pipeline 8 rises to X, the out2 is powered off, and the second electromagnetic valve 4 and the make-up fluid pump 6 stop working.
When the actual pressure value is larger than the set value X + Y1, the out1 is electrified, the first relay coil K1 is electrified, the first relay normally-open contact K1.1 is closed, and the first electromagnetic valve 2 is electrified. The main pipeline 8 begins to discharge the circulating liquid to the water tank 1, the pressure of the main pipeline 8 is reduced to X, the out1 is cut off, and the first electromagnetic valve 2 stops working.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (4)
1. The utility model provides a level pressure fluid infusion controlling means for the main line fluid infusion of water tank through self fluid infusion mouth to closed circuit structure to and the pressure release mouth pressure release of main line to water tank, its characterized in that: including liquid way system and control system, wherein:
the liquid path system comprises a first electromagnetic valve, a second electromagnetic valve and a liquid supplementing pump, a pressure relief port of the water tank is communicated with the main line through the first electromagnetic valve, and a liquid supplementing port of the water tank is communicated with the main line sequentially through the liquid supplementing pump and the second electromagnetic valve;
the control system comprises a double-output digital controller, a first relay, a second relay and a pressure sensor, the pressure sensor is arranged on the main pipeline to collect hydraulic pressure in the main pipeline, the double-output digital controller is electrically connected between the live wire and the zero line through a power supply end of the double-output digital controller, an electric quantity input end of the double-output digital controller is electrically connected with the pressure sensor, one electric quantity output end of the double-output digital controller is electrically connected with the zero line through a first relay coil, the other electric quantity output end of the double-output digital controller is electrically connected with the zero line through a second relay coil, the first relay is provided with a normally open contact which is connected with the first electromagnetic valve in series and then is electrically connected between the live wire and the zero wire, the second relay is provided with a normally open contact which is connected with the second electromagnetic valve in series and then electrically connected between the live wire and the zero wire, and the second electromagnetic valve is electrically connected with the liquid supplementing pump in parallel.
2. A constant pressure fluid infusion control device as claimed in claim 1, wherein: the model of the dual-output digital controller is ohm dragon E5CC-CX2 ASM-804.
3. A constant pressure fluid infusion control device as claimed in claim 1, wherein: in the liquid path system, the first electromagnetic valve is also communicated with a first ball valve in parallel.
4. A constant pressure fluid infusion control device as claimed in claim 1, wherein: in the liquid path system, the second electromagnetic valve is also communicated with a second ball valve in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535255.8A CN113418338A (en) | 2021-05-17 | 2021-05-17 | Constant-pressure fluid infusion control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535255.8A CN113418338A (en) | 2021-05-17 | 2021-05-17 | Constant-pressure fluid infusion control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113418338A true CN113418338A (en) | 2021-09-21 |
Family
ID=77712364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110535255.8A Pending CN113418338A (en) | 2021-05-17 | 2021-05-17 | Constant-pressure fluid infusion control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113418338A (en) |
-
2021
- 2021-05-17 CN CN202110535255.8A patent/CN113418338A/en active Pending
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