CN213237891U - Central air conditioning coordinated control device - Google Patents
Central air conditioning coordinated control device Download PDFInfo
- Publication number
- CN213237891U CN213237891U CN202021923812.0U CN202021923812U CN213237891U CN 213237891 U CN213237891 U CN 213237891U CN 202021923812 U CN202021923812 U CN 202021923812U CN 213237891 U CN213237891 U CN 213237891U
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- circuit module
- intermediate relay
- circuit
- central air
- open contact
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Abstract
The utility model discloses a central air conditioning coordinated control device, including multiunit control circuit, control circuit includes first auxiliary relay, first knob switch, second auxiliary relay, second knob switch, third auxiliary relay, time relay, first auxiliary relay coil is connected with the refrigeration host computer, constitute first circuit module after first knob switch and second auxiliary relay coil are established ties, constitute second circuit module after second knob switch, time relay time delay closed switch and third auxiliary relay coil are established ties, first circuit module, second circuit module and time relay coil connect in parallel and then with first auxiliary relay normally open contact one establish ties, first circuit module is connected with the cooling pump, second circuit module is connected with the cooling tower fan; the utility model discloses can control cooling pump and cooling tower fan and refrigeration host computer synchronous operation, control is convenient.
Description
Technical Field
The utility model belongs to the technical field of central air conditioning control, a central air conditioning coordinated control device is related to.
Background
The central air conditioner used in the large hotel comprises three refrigeration hosts, three cooling pumps, three freezing pumps and three cooling towers, wherein the refrigeration hosts, the cooling pumps, the freezing pumps and the cooling tower fans are a set of system. In order to operate flexibly, the devices in the three systems are mutually standby, the operation is flexible, proper devices can be started according to weather, and a large amount of energy is saved.
In the use process of the central air conditioner, a refrigeration host machine needs to be kept in an operation state all the time, a cooling pump, a freezing pump and a cooling tower fan can be synchronously operated with the refrigeration host machine, the refrigeration host machine stops working after reaching a set temperature, and the cooling pump and the cooling tower fan need to be stopped.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a central air conditioning coordinated control device, fine solution current central air conditioning cooling pump, the inconvenient problem of cooling tower fan control.
In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides a central air conditioning coordinated control device, includes multiunit control circuit, control circuit includes first auxiliary relay, first knob switch, second auxiliary relay, second knob switch, third auxiliary relay, time relay, and first auxiliary relay coil is connected with the refrigeration host computer, constitute first circuit module after first knob switch establishes ties with second auxiliary relay coil, constitute second circuit module after second knob switch, time relay time delay closed switch and third auxiliary relay coil establish ties, establish ties with first auxiliary relay normally open contact after first circuit module, second circuit module and the time relay coil is parallelly connected, first circuit module is connected with the cooling pump, second circuit module is connected with the cooling tower fan.
Furthermore, a third circuit module is formed by connecting a plurality of groups of first circuit modules and second circuit modules in the control circuit in parallel, a fourth circuit module is formed by connecting a plurality of groups of first intermediate relay normally open contacts in the control circuit in parallel, and the third circuit module and the fourth circuit module are connected in series.
Further, the display circuit comprises display circuits with the number corresponding to that of the control circuits, and the display circuits comprise a fifth circuit module, a sixth circuit module and a seventh circuit module.
Further, the fifth circuit module comprises a first indicator light and a second normally open contact of the first intermediate relay connected with the first indicator light in series.
Furthermore, the sixth circuit comprises a second intermediate relay normally-open contact, a second intermediate relay normally-closed contact, a second indicator lamp and a third indicator lamp, the first intermediate relay normally-open contact is connected with the second indicator lamp in series, and the second intermediate relay normally-closed contact is connected with the third indicator lamp in series.
Furthermore, the seventh circuit comprises a third intermediate relay normally open contact, a third intermediate relay normally closed contact, a fourth indicator light and a fifth indicator light, wherein the third intermediate relay normally open contact is connected with the fourth indicator light in series, and the third intermediate relay normally closed contact is connected with the fifth indicator light in series.
Furthermore, the first intermediate relay coil and the refrigeration host, the first circuit module and the cooling pump, and the second circuit module and the cooling tower are connected through wiring terminals.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses in, the first auxiliary relay of refrigeration host computer during operation carries out work, and first circuit module and second circuit module can be through first knob switch and second knob on-off control break-make, and then control cooling pump and cooling tower fan and refrigeration host computer synchronous operation, and control is convenient.
2. The utility model discloses in, fifth circuit module, sixth circuit module and the seventh circuit module in the display circuit can show the operating condition of refrigeration host computer, cooling pump and cooling tower fan respectively, observe directly perceived.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
In the figure: the relay normally-open contact device comprises a first intermediate relay coil (1), a first intermediate relay normally-open contact (2), a first rotary switch (3), a second intermediate relay coil (4), a time relay coil (5), a second rotary switch (6), a time relay delay closing switch (7), a third intermediate relay coil (8), a second intermediate relay normally-open contact (9), a second intermediate relay normally-closed contact (10), a third intermediate relay normally-open contact (11), a third intermediate relay normally-closed contact (12), a first indicator lamp (13), a second indicator lamp (14), a third indicator lamp (15), a fourth indicator lamp (16), a fifth indicator lamp (17), a connecting terminal (18) and a first intermediate relay normally-open contact second (19).
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.
As shown in FIG. 1, the linkage control device for central air conditioner of the present invention comprises a plurality of sets of control circuits, the control circuit comprises a first intermediate relay, a first knob switch 3, a second intermediate relay, a second knob switch 6, a third intermediate relay and a time relay, a first intermediate relay coil 1 is connected with a refrigeration host, the first knob switch 3 and the second intermediate relay coil 4 are connected in series to form a first circuit module, the second knob switch 6, the time relay delay closing switch 7 and the third intermediate relay coil 8 are connected in series to form a second circuit module, the first circuit module, the second circuit module and the time relay coil 5 are connected in parallel and then are connected in series with the first intermediate relay normally open contact 2, the first circuit module is connected with the cooling pump, and the second circuit module is connected with the cooling tower fan.
In this embodiment, a plurality of groups of the first circuit module and the second circuit module in the control circuit are connected in parallel to form a third circuit module, a plurality of groups of the first intermediate relay normally open contact one 2 in the control circuit are connected in parallel to form a fourth circuit module, the third circuit module and the fourth circuit module are connected in series, and after the third circuit module and the fourth circuit module are connected in series, two ends of the third circuit module and two ends of the fourth circuit module are respectively connected with a zero line and a live line.
In the embodiment, the control circuit is provided with three groups, when the cooling system is used, the first rotary switch 3 and the second rotary switch 6 are used for selecting the cooling pump and the cooling tower fan which are involved firstly, when the cooling host machine works, the first intermediate relay coil 1 is electrified, the first intermediate relay normally open contact 2 is closed, then the time relay coil 5 and the second intermediate relay coil 4 are electrified, the main fan and the cooling pump of the cooling tower work, the normally open time delay contact of the time relay is closed in a time delay way, and the cooling tower fan works; first intermediate relay normally open contact 2 among three control circuit of group is closed along with the work of refrigeration host computer, and cooling pump and cooling tower fan can select the quantity of interveneeing as required, realizes each other for reserve between the equipment, can improve the utility model discloses a reliability.
In this embodiment, the display device further includes display circuits, the number of which corresponds to the number of the control circuits, and the display circuits include a fifth circuit module, a sixth circuit module, and a seventh circuit module.
Specifically, the fifth circuit module comprises a first indicator light 13 and a second normally open contact 19 of a first intermediate relay connected in series with the first indicator light 13, when the refrigeration host works, the second normally open contact 19 of the first intermediate relay is closed, the first indicator light 13 is turned on to display the normal work of the refrigeration host, and the first indicator lights 13 in the plurality of display circuits can display the working states of different refrigeration hosts.
Specifically, the sixth circuit comprises a second intermediate relay normally-open contact 9, a second intermediate relay normally-closed contact 10, a second indicator lamp 14 and a third indicator lamp 15, the first intermediate relay normally-open contact 2 is connected with the second indicator lamp 14 in series, the second intermediate relay normally-closed contact 10 is connected with the third indicator lamp 15 in series, after the connected cooling pump is selected, the second intermediate relay coil 4 is electrified, the second intermediate relay normally-open contact 9 is closed, the second intermediate relay normally-closed contact 10 is disconnected, and the second indicator lamp 14 is turned on to display that the cooling pump works normally; when the second intermediate relay coil 4 is powered off, the normally open contact 9 of the second intermediate relay is disconnected, the normally closed contact is closed, and the third indicator lamp 15 is turned on to display that the cooling pump does not work; the working states of the cooling pump and the cooling fan can be visually observed through the sixth circuit module.
In this embodiment, the seventh circuit includes a third intermediate relay normally-open contact 11, a third intermediate relay normally-closed contact 12, a fourth indicator light 16 and a fifth indicator light 17, the third intermediate relay normally-open contact 11 is connected in series with the fourth indicator light 16, and the third intermediate relay normally-closed contact 12 is connected in series with the fifth indicator light 17; a coil of the third intermediate relay is electrified, a normally open contact 11 of the third intermediate relay is closed, a normally closed contact 12 of the third intermediate relay is opened, and a fourth indicator light 16 is lightened to display that the cooling tower fan works normally; and when the coil of the third intermediate relay is powered off, the normally open contact 11 of the third intermediate relay is disconnected, the normally closed contact is closed, and the fifth indicator light 17 is lightened to display that the cooling tower fan does not work.
In this embodiment, the first intermediate relay coil 1 and the refrigeration host, the first circuit module and the cooling pump, and the second circuit module and the cooling tower are connected by the connection terminal 18.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a central air conditioning coordinated control device which characterized in that: including multiunit control circuit, control circuit includes first auxiliary relay, first rotary switch, second auxiliary relay, second rotary switch, third auxiliary relay, time relay, and first auxiliary relay coil is connected with the refrigeration host computer, constitute first circuit module after first rotary switch establishes ties with second auxiliary relay coil, constitute second circuit module after second rotary switch, time relay time delay closed switch and third auxiliary relay coil establish ties, establish ties with first auxiliary relay normally open contact after first circuit module, second circuit module and time relay coil are parallelly connected, first circuit module is connected with the cooling pump, second circuit module is connected with the cooling tower fan.
2. The linkage control device of the central air conditioner as claimed in claim 1, wherein: the first circuit module and the second circuit module in the multiple groups of control circuits are connected in parallel to form a third circuit module, the first intermediate relay normally open contact in the multiple groups of control circuits are connected in parallel to form a fourth circuit module, and the third circuit module and the fourth circuit module are connected in series.
3. The linkage control device of the central air conditioner as claimed in claim 1, wherein: the display circuit comprises a fifth circuit module, a sixth circuit module and a seventh circuit module.
4. The linkage control device of the central air conditioner as claimed in claim 3, wherein: the fifth circuit module comprises a first indicator light and a second normally open contact of a first intermediate relay connected with the first indicator light in series.
5. The linkage control device of the central air conditioner as claimed in claim 3, wherein: the sixth circuit comprises a second intermediate relay normally-open contact, a second intermediate relay normally-closed contact, a second indicator lamp and a third indicator lamp, the first intermediate relay normally-open contact is connected with the second indicator lamp in series, and the second intermediate relay normally-closed contact is connected with the third indicator lamp in series.
6. The linkage control device of the central air conditioner as claimed in claim 3, wherein: the seventh circuit comprises a third intermediate relay normally-open contact, a third intermediate relay normally-closed contact, a fourth indicator light and a fifth indicator light, the third intermediate relay normally-open contact is connected with the fourth indicator light in series, and the third intermediate relay normally-closed contact is connected with the fifth indicator light in series.
7. The linkage control device of the central air conditioner as claimed in claim 1, wherein: the first intermediate relay coil and the refrigeration host machine, the first circuit module and the cooling pump, and the second circuit module and the cooling tower are connected through wiring terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923812.0U CN213237891U (en) | 2020-09-04 | 2020-09-04 | Central air conditioning coordinated control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021923812.0U CN213237891U (en) | 2020-09-04 | 2020-09-04 | Central air conditioning coordinated control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213237891U true CN213237891U (en) | 2021-05-18 |
Family
ID=75871193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021923812.0U Active CN213237891U (en) | 2020-09-04 | 2020-09-04 | Central air conditioning coordinated control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213237891U (en) |
-
2020
- 2020-09-04 CN CN202021923812.0U patent/CN213237891U/en active Active
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