CN211120157U - Automatic timing blowing liquid return device for unit shutdown - Google Patents
Automatic timing blowing liquid return device for unit shutdown Download PDFInfo
- Publication number
- CN211120157U CN211120157U CN201922088105.8U CN201922088105U CN211120157U CN 211120157 U CN211120157 U CN 211120157U CN 201922088105 U CN201922088105 U CN 201922088105U CN 211120157 U CN211120157 U CN 211120157U
- Authority
- CN
- China
- Prior art keywords
- switch
- auxiliary relay
- relay
- unit
- control switch
- 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.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an automatic timing air-blowing liquid-returning device for unit shutdown, which comprises a refrigerating unit, a test box and a water-returning box, wherein the output end of the refrigerating unit is connected with the inlet of the test box through a liquid inlet pipeline, the liquid outlet of the test box is connected with the input end of the refrigerating unit through a liquid outlet pipeline, the air inlet of the test box is connected with an air inlet pipeline, the air inlet pipeline is connected with an external compressed air source, a first electromagnetic valve is arranged on the air inlet pipeline, the air outlet of the test box is connected with the water-returning box through an air outlet pipeline, a second electromagnetic valve is arranged on the air outlet pipeline, a main circuit relay is arranged in the refrigerating unit, the utility model adopts the combination of a unit operation signal and the relay to achieve the full-automation and high-precision requirements, and realizes the functions of automatic air-blowing liquid-returning, manpower control is not needed, and compared with plc control, the cost is lower.
Description
Technical Field
The utility model relates to a test refrigeration unit technical field for the trade specifically is liquid device is returned in automatic timing of blowing in unit shut down.
Background
In the test industry, a cooling medium in a tested device is generally required to be blown back into a unit medium box, when a test is finished, the medium is required to be blown back into the medium box, two modes are generally adopted, the first mode is that a button switch is adopted and air blowing and liquid returning are manually selected, the second mode is that P L C control is adopted, the first mode has the advantages that after the test is finished, a machine is shut down, air blowing and water returning are manually carried out, the air blowing time interval and time are controlled by a person and are flexible, the first mode has the defects that manual selection is required to be carried out every time the test is finished, manpower is wasted, time is delayed, time control is not accurate, the second mode has the advantages that P L C control is adopted, manual operation is not required, accurate control can be achieved, and the second mode has the defects that P L C control is adopted, the cost of electrical control is increased and resources are wasted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a unit shuts down automatic timing and blows back liquid device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the unit shuts down automatic timing liquid return device that blows, including refrigerating unit, test box and return water tank, the output of refrigerating unit is connected with the inlet of test box through the inlet fluid pipeline, the liquid outlet of test box is connected with refrigerating unit's input through the liquid outlet pipe, the air inlet of test box is connected with the admission line, the admission line is connected with external compressed air source, install first solenoid valve on the admission line, the gas outlet of test box is connected with the return water tank through the pipeline of giving vent to anger, install the second solenoid valve on the pipeline of giving vent to anger, the inside main circuit relay that is provided with of refrigerating unit, main circuit relay, first solenoid valve and second solenoid valve all are connected with external control circuit.
Preferably, the liquid inlet pipeline is provided with a first valve.
Preferably, the liquid outlet pipeline is provided with a second valve.
Preferably, return water tank internally mounted has the filter screen, the return water tank is connected with refrigerating unit through the return water pipeline, the last return water pump that installs of return water pipeline.
Preferably, the test box is connected with an overflow pipeline, the overflow pipeline is connected with the liquid outlet pipeline, and the overflow pipeline is provided with a one-way overflow valve.
Preferably, control circuit includes KA control circuit, KA control circuit and solenoid valve control circuit, KA control circuit includes KA auxiliary relay, KA auxiliary relay establishes ties mutually with first unit operation switch, first KA auxiliary relay control switch, first unit operation switch connects in parallel has KA auxiliary relay circular telegram switch, first unit operation switch is connected with main circuit relay's signal output part, first KA auxiliary relay control switch is normally closed switch, first unit operation switch, KA auxiliary relay circular telegram switch are normally open switch.
Preferably, the KA control circuit includes KA auxiliary relay, it has KT time relay control switch, KA auxiliary relay control switch, second unit operation switch to establish ties on the KA auxiliary relay, it has KA auxiliary relay circular telegram switch to establish ties on KA auxiliary relay control switch, the second unit operation switch, main circuit relay's signal output part is connected with second unit operation switch, KA auxiliary relay's signal output part is connected with first KA auxiliary relay control switch, KA auxiliary relay control switch is connected with KA auxiliary relay's signal output part, KT time relay control switch, second unit operation switch are normally closed switch, KA auxiliary relay control switch, KA auxiliary relay circular telegram switch are normally open switch.
Preferably, solenoid valve control circuit includes KT time relay, KT time relay establishes ties has second KA auxiliary relay control switch, KT time relay is parallelly connected in parallel with first solenoid valve, second KA auxiliary relay control switch is normally open switch, KA auxiliary relay's signal output part is connected with second KA auxiliary relay control switch, KT time relay's signal output part is connected with KT time relay control switch.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a combination of unit running signal and relay reaches full-automatic, and the requirement of high accuracy has realized that the shutdown signal of shutting down according to the unit after the unit shuts down, and the function of liquid is returned in the automatic blowing need not consume manpower control, compares plc control cost cheaper.
Drawings
FIG. 1 is a schematic structural diagram of an automatic timing air-blowing liquid-returning device for unit shutdown;
FIG. 2 is a schematic structural diagram of a KA1 control circuit in the automatic timing air blowing and liquid returning device for unit shutdown;
FIG. 3 is a schematic structural diagram of a KA2 control circuit in the automatic timing air blowing and liquid returning device for unit shutdown;
fig. 4 is a schematic structural diagram of a control circuit of a solenoid valve in the automatic timing air blowing and liquid returning device when the unit is stopped.
In the figure: 1-a refrigerating unit, 2-a test box, 3-a water return tank, 4-a liquid inlet pipeline, 5-a first valve, 6-a liquid outlet pipeline, 7-a second valve, 8-a gas inlet pipeline, 9-a first electromagnetic valve, 10-a gas outlet pipeline, 11-a second electromagnetic valve, 12-a water return pipeline, 13-a water return pump, 14-an overflow pipeline, 15-a one-way overflow valve, 16-KA1 intermediate relay, 17-KA2 intermediate relay, 18-KT1 time relay, 19-a first unit operation switch, 20-a second unit operation switch, 21-KA1 intermediate relay power-on switch, 22-KA1 intermediate relay control switch, 23-a first KA2 intermediate relay control switch, 24-KA2 intermediate relay power-on switch, 25-a second KA2 intermediate relay control switch, the 26-KT1 time relay controls the switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the unit shuts down automatic timing liquid return device that blows, including refrigerating unit 1, test box 2 and return water tank 3, the output of refrigerating unit 1 is connected with the inlet of test box 2 through inlet pipe 4, the liquid outlet of test box 2 is connected with refrigerating unit 1's input through liquid outlet pipe 6, the air inlet of test box 2 is connected with admission line 8, admission line 8 is connected with external compressed air source, install first solenoid valve 9 on the admission line 8, the gas outlet of test box 2 is connected with return water tank 3 through outlet pipe 10, install second solenoid valve 11 on the outlet pipe 10, refrigerating unit 1 is inside to be provided with the main circuit relay, first solenoid valve 9 and second solenoid valve 11 all are connected with external control circuit.
And a first valve 5 is arranged on the liquid inlet pipeline 4.
And a second valve 7 is arranged on the liquid outlet pipeline 6.
3 internally mounted of return water tank has the filter screen, return water tank 3 is connected with refrigerating unit 1 through return water pipe 12, install return water pump 13 on return water pipe 12.
The test box 2 is connected with an overflow pipeline 14, the overflow pipeline 14 is connected with the liquid outlet pipeline 6, and a one-way overflow valve 15 is installed on the overflow pipeline 14.
Control circuit includes KA1 control circuit, KA2 control circuit and solenoid valve control circuit, KA1 control circuit includes KA1 auxiliary relay 16, KA1 auxiliary relay 16 and first unit operation switch 19, first KA2 auxiliary relay control switch 23 are established ties mutually, first unit operation switch 19 connects in parallel has KA1 auxiliary relay circular telegram switch 21, first unit operation switch 19 is connected with the signal output part of main circuit relay, first KA2 auxiliary relay control switch 23 is normally closed switch, first unit operation switch 19, KA1 auxiliary relay circular telegram switch 21 are normally open switch.
KA2 control circuit includes KA2 auxiliary relay 17, it has KT1 time relay control switch 26, KA1 auxiliary relay control switch 22, second unit operation switch 20 to establish ties on KA2 auxiliary relay 17, it has KA2 auxiliary relay circular telegram switch 24 to establish ties on KA1 auxiliary relay control switch 22, the second unit operation switch 20, the signal output part of main circuit relay is connected with second unit operation switch 20, KA2 auxiliary relay 17's signal output part is connected with first KA2 auxiliary relay control switch 23, KA1 auxiliary relay control switch 22 is connected with KA1 auxiliary relay 16's signal output part, KT1 time relay control switch 26, second unit operation switch 20 are normally closed switch, KA1 auxiliary relay control switch 22, KA2 auxiliary relay circular telegram switch 24 are normally open switch.
Solenoid valve control circuit includes KT1 time relay 18, KT1 time relay 18 establishes ties there is second KA2 auxiliary relay control switch 25, KT1 time relay 18 is parallelly connected in parallel with first solenoid valve 9, second solenoid valve 11, second KA2 auxiliary relay control switch 25 is normally open switch, KA2 auxiliary relay 17's signal output part is connected with second KA2 auxiliary relay control switch 25, KT1 time relay 18's signal output part is connected with KT1 time relay control switch 26.
The utility model discloses a theory of operation: during testing, the refrigerating unit 1 is started, refrigerating fluid is circularly introduced into the testing box 2, a main circuit relay in the unit is electrified at the moment, the first unit operation switch 19 is closed, the second unit operation switch 20 is disconnected, the KA1 intermediate relay 16 is electrified at the moment, the KA1 intermediate relay electrification switch 21 and the KA1 intermediate relay control switch 22 are controlled to be closed, and electrification self-locking of the KA1 intermediate relay 16 is realized; after the test is finished, the refrigerating unit 1 is powered off, the main circuit relay sends out a signal, the first unit operation switch 19 is switched off, the second unit operation switch 20 is switched on, because the KA1 intermediate relay 16 is still powered on, the KA1 intermediate relay control switch 22 is kept on, the KA2 intermediate relay 17 is powered on, the first KA2 intermediate relay control switch 23 is controlled to be switched off, the KA2 intermediate relay power switch 24 is switched on, the second KA2 intermediate relay control switch 25 is switched on, the KA1 intermediate relay 16 is powered off, the KA1 intermediate relay power switch 21 and the KA1 intermediate relay control switch 22 are controlled to be switched off, the KA2 intermediate relay 17 realizes power-on self-locking, the first electromagnetic valve 9 and the second electromagnetic valve 11 are switched on, air is blown into the test box, liquid flows back into the water return box 3, the KT1 time relay 18 is powered on, the KT1 time relay control switch 26 is switched off after a period of time, the KA2 intermediate relay 17 is powered off, the switches are correspondingly reset, the first electromagnetic valve 9 and the second electromagnetic valve 11 are powered off and closed, and the air blowing process is stopped.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The unit is shut down automatic timing liquid device that returns of blowing includes refrigerating unit (1), test box (2) and return water tank (3), its characterized in that: the output of refrigerating unit (1) is connected with the inlet of test box (2) through inlet fluid pipeline (4), the liquid outlet of test box (2) is connected with the input of refrigerating unit (1) through liquid outlet pipe way (6), the air inlet of test box (2) is connected with admission line (8), admission line (8) are connected with external compressed air source, install first solenoid valve (9) on admission line (8), the gas outlet of test box (2) is connected with return water tank (3) through outlet pipe way (10), install second solenoid valve (11) on outlet pipe way (10), refrigerating unit (1) inside is provided with the relay main circuit, main circuit relay, first solenoid valve (9) and second solenoid valve (11) all are connected with external control circuit.
2. The unit shutdown automatic timing liquid return device that blows of claim 1 characterized in that: and a first valve (5) is arranged on the liquid inlet pipeline (4).
3. The unit shutdown automatic timing liquid return device that blows of claim 1 characterized in that: and a second valve (7) is arranged on the liquid outlet pipeline (6).
4. The unit shutdown automatic timing liquid return device that blows of claim 1 characterized in that: return water tank (3) internally mounted has the filter screen, return water tank (3) are connected with refrigerating unit (1) through return water pipe (12), install return water pump (13) on return water pipe (12).
5. The unit shutdown automatic timing liquid return device that blows of claim 1 characterized in that: the testing box (2) is connected with an overflow pipeline (14), the overflow pipeline (14) is connected with the liquid outlet pipeline (6), and a one-way overflow valve (15) is installed on the overflow pipeline (14).
6. The unit shutdown automatic timing liquid return device that blows of claim 1 characterized in that: control circuit includes KA1 control circuit, KA2 control circuit and solenoid valve control circuit, KA1 control circuit includes KA1 auxiliary relay (16), KA1 auxiliary relay (16) establish ties mutually with first unit operation switch (19), first KA2 auxiliary relay control switch (23), first unit operation switch (19) connect in parallel have KA1 auxiliary relay circular telegram switch (21), first unit operation switch (19) are connected with the signal output part of main circuit relay, first KA2 auxiliary relay control switch (23) are normally closed switch, first unit operation switch (19), KA1 auxiliary relay circular telegram switch (21) are normally open switch.
7. The unit shutdown automatic timing liquid return device that blows of claim 6 characterized in that: KA2 control circuit includes KA2 auxiliary relay (17), it has KT1 time relay control switch (26), KA1 auxiliary relay control switch (22), second unit operation switch (20) to establish ties on KA2 auxiliary relay (17), it has KA2 auxiliary relay circular telegram switch (24) to connect in parallel on KA1 auxiliary relay control switch (22), the second unit operation switch (20), main circuit relay's signal output part is connected with second unit operation switch (20), the signal output part of KA2 auxiliary relay (17) is connected with first KA2 auxiliary relay control switch (23), KA1 auxiliary relay control switch (22) is connected with the signal output part of KA1 auxiliary relay (16), KA1 time relay control switch (26), second unit operation switch (20) are normally closed switch, KA1 auxiliary relay control switch (22), The KA2 intermediate relay energizing switch (24) is a normally open switch.
8. The unit shutdown automatic timing liquid return device that blows of claim 7 characterized in that: solenoid valve control circuit includes KT1 time relay (18), KT1 time relay (18) are established ties and are had second KA2 auxiliary relay control switch (25), KT1 time relay (18) are parallelly connected with first solenoid valve (9), second solenoid valve (11) in parallel, second KA2 auxiliary relay control switch (25) are normally open switch, the signal output part of KA2 auxiliary relay (17) is connected with second KA2 auxiliary relay control switch (25), the signal output part of KT1 time relay (18) is connected with KT1 time relay control switch (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088105.8U CN211120157U (en) | 2019-11-28 | 2019-11-28 | Automatic timing blowing liquid return device for unit shutdown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922088105.8U CN211120157U (en) | 2019-11-28 | 2019-11-28 | Automatic timing blowing liquid return device for unit shutdown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211120157U true CN211120157U (en) | 2020-07-28 |
Family
ID=71695652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922088105.8U Active CN211120157U (en) | 2019-11-28 | 2019-11-28 | Automatic timing blowing liquid return device for unit shutdown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211120157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849049A (en) * | 2019-11-28 | 2020-02-28 | 苏州奥德机械有限公司 | Automatic timing blowing liquid return device for unit shutdown |
-
2019
- 2019-11-28 CN CN201922088105.8U patent/CN211120157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849049A (en) * | 2019-11-28 | 2020-02-28 | 苏州奥德机械有限公司 | Automatic timing blowing liquid return device for unit shutdown |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106774247B (en) | Central air-conditioning emulation test system and test method | |
| CN211120157U (en) | Automatic timing blowing liquid return device for unit shutdown | |
| CN204246896U (en) | A kind of intelligent monitoring water purifier | |
| JP2018069190A (en) | Pipeline cleaning device and pipeline cleaning method using the same | |
| CN102615070B (en) | Fully automatic external foam cleaning system | |
| CN203548155U (en) | Automatic input device of spare pump package | |
| CN110849049A (en) | Automatic timing blowing liquid return device for unit shutdown | |
| CN201002081Y (en) | Air water pulse cleaning equipment | |
| CN209238618U (en) | A kind of Dairy Processing transport pipeline cleaning equipment | |
| CN206256511U (en) | A kind of deep well water intaking water cleaning systems | |
| CN204140352U (en) | A kind of dry-type centrifugal pump pump valve linkage control device | |
| CN103454937B (en) | Energy-saving automatic adjusting system of air compressor | |
| CN203572117U (en) | Freon filling machine | |
| CN207033707U (en) | For testing the static test device of air compressor machine ESS system fatigue reliability | |
| CN204806726U (en) | Engine pedestal laboratory refrigerated water supply system | |
| CN209352555U (en) | A kind of ternary method chlorine dioxide generating system | |
| CN203786273U (en) | Automatic continuous impact testing circuit | |
| CN110002517A (en) | A kind of water purifier with flow prompting function based on Internet of Things | |
| CN110986261A (en) | Control system and method for automatically adjusting refrigerant of air-cooled compression condensing unit | |
| CN204513871U (en) | A kind of filling of the cold-producing medium for random air-conditioning refrigeration system energy-saving mechanism | |
| CN209514399U (en) | A kind of liquid cooling controller test auxiliary system | |
| CN203742175U (en) | Pneumoelectric linkage device of fully-automatic high-speed concrete coating machine | |
| CN211714097U (en) | Green's water supply equipment | |
| CN211886763U (en) | Cooling water circulation system for quartz crystal production equipment | |
| CN208604676U (en) | A kind of city secondary booster pump station water pump automatic-control exhaust apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Suzhou Aode high end equipment Co.,Ltd. Address before: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: SUZHOU AODE MACHINERY Co.,Ltd. |