CN205047439U - Forced air cooling helical -lobe compressor's cooling control system - Google Patents
Forced air cooling helical -lobe compressor's cooling control system Download PDFInfo
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- CN205047439U CN205047439U CN201520689430.9U CN201520689430U CN205047439U CN 205047439 U CN205047439 U CN 205047439U CN 201520689430 U CN201520689430 U CN 201520689430U CN 205047439 U CN205047439 U CN 205047439U
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- power supply
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- contactor
- cooler
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Abstract
The utility model provides a forced air cooling helical -lobe compressor's cooling control system, its the cooling amount of wind that can solve present air -cooled compressor is invariable nontunable and influence the problem of compressor normality ability. It includes cooler and fan, be full of the cooling fluid that treats of circulation flow in the cooler, the cooler install in the air intake of fan department and with the fan near being connected, the low -power supply circuit of normal close is connected to the driving motor's of fan electric power input through first contactor KM1, the high power supply circuit that normally open is connected through third contactor KM3, the import department of cooler installs a temperature detect switch TS1 and the 2nd temperature detect switch TS2, a temperature detect switch TS1, the flow through temperature of treating cooling fluid of cooler of the 2nd temperature detect switch TS2 real -time supervision, and control first relay KA1 according to the temperature of treating cooling fluid, second relay KA2 realizes low -power supply circuit, high power supply circuit switches the power supply.
Description
Technical field
The utility model relates to the field of cooling of compressor, especially relates to the cooling system of air-cooled compressor, is specially a kind of cooling control system of air-cooled screw compressor.
Background technique
The cooling air quantity of air-cooled compressor is in the market all constant flow rate, the air output of its blower fan and the heat diffusion area of cooler are all manufacture according to the Design of State that summer is the hottest, and to add cooling air quantity because temperature itself is lower to winter be according to summer, very hot state designed and cooling air quantity can not adjust, therefore often cause the lubricant oil of compressor to there will be surfusion, thus affect the normal performance of compressor.
Summary of the invention
For the problems referred to above, the utility model provides a kind of cooling control system of air-cooled screw compressor, and it is constant non-adjustable and affect the problem of the normal performance of compressor that it can solve the cooling air quantity of existing air-cooled compressor.
Its technological scheme is such, it comprises cooler and blower fan, the fluid to be cooled circulated is full of in described cooler, described cooler be installed on described blower fan air inlet and with described blower fan near being connected, it is characterized in that: the power input end of the drive motor of described blower fan connects low-power power supply circuits by the first contactor KM1, high power power supply circuits are connected by the 3rd contactor KM3, described low-power power supply circuits are normally-closed circuit, described high power power supply circuits are normal open circuit, the inlet of described cooler is provided with the first temperature detect switch (TDS) TS1 and the second temperature detect switch (TDS) TS2, described first temperature detect switch (TDS) TS1 is connected in series the first relay K A1, described second temperature detect switch (TDS) TS2 is connected in series the second relay K A2, described first relay K A1 and the second relay K A2 is connected in parallel, described first temperature detect switch (TDS) TS1, second temperature detect switch (TDS) TS2 Real-Time Monitoring flows through the temperature of the fluid to be cooled of described cooler, and control described first relay K A1 according to the temperature of described fluid to be cooled, second relay K A2 realizes described low-power power supply circuits, high power power supply circuits switch power supply.
Further, described first relay K A1 is provided with normally-closed contact KA1-1 and normally opened contact KA1-2, described second relay K A2 is provided with normally-closed contact KA2-1 and normally opened contact KA2-2, described first contactor is provided with normally-closed contact KM1-1, normally opened contact KM1-2, described 3rd contactor KM3 is provided with normally-closed contact KM3-1, normally opened contact KM3-2, with described normally-closed contact KA2-1 after described normally-closed contact KA1-1 is in parallel with normally opened contact KM1-2, KM3-1 and the first contactor KM1 connects successively, with normally opened contact KA1-2 after normally opened contact KA2-2 is in parallel with normally opened contact KM3-2, normally-closed contact KM1-1, 3rd contactor KM3 connects successively.
Further, described drive motor is also connected with the second contactor KM2, and the electric power incoming line place of described drive motor is provided with circuit breaker Q L.
Further, described blower fan is centrifugal blower.
The beneficial effects of the utility model are: its by arranging temperature detect switch (TDS) in the inlet of cooler, carry out control relay by temperature detect switch (TDS) according to the temperature of the fluid to be cooled flowed in cooler and realize low-power power supply circuits and the switching of high power power supply circuits to blower fan is powered, and the cooling air quantity of blower fan is changed by the switching of low-power power supply circuits, high power power supply circuits, thus guarantee that the temperature of compressor assembly fluid is in claimed range, and ensure the normal working performance of compressor; Because it can regulate according to the cooling air quantity of real fluid temperature to blower fan, thus greatly energy consumption can be reduced.
Accompanying drawing explanation
Fig. 1 is the cooling control system structural representation of a kind of air-cooled screw compressor of the utility model;
Fig. 2 is the circuit theory diagrams of the cooling control system of a kind of air-cooled screw compressor of the utility model;
Fig. 3 is the electric control theory figure of the cooling control system of a kind of air-cooled screw compressor of the utility model.
Embodiment
See Fig. 1, Fig. 2 and Fig. 3, the cooling control system of a kind of air-cooled screw compressor of the utility model comprises cooler 1 and blower fan, blower fan is centrifugal blower 2, the fluid to be cooled circulated is full of in cooler 1, cooler 1 be installed on centrifugal blower 2 air inlet and with centrifugal blower near being connected, the power input end of the drive motor 3 of centrifugal blower 2 connects low-power power supply circuits by the first contactor KM1, high power power supply circuits are connected by the 3rd contactor KM3, the inlet of cooler 1 is provided with the first temperature detect switch (TDS) TS1 and the second temperature detect switch (TDS) TS2, first temperature detect switch (TDS) TS1 is connected in series the first relay K A1, second temperature detect switch (TDS) TS2 is connected in series the second relay K A2, first relay K A1 and the second relay K A2 is connected in parallel, first temperature detect switch (TDS) TS1, second temperature detect switch (TDS) TS2 Real-Time Monitoring flows through the temperature of the fluid to be cooled of described cooler, and control described first relay K A1 according to the temperature of described fluid to be cooled, second relay K A2 realizes low-power power supply circuits, high power power supply circuits switch power supply, drive motor 3 is also connected with the second contactor KM2, and the electric power incoming line place of drive motor 3 is provided with circuit breaker Q L.
See Fig. 3, first relay K A1 is provided with normally-closed contact KA1-1 and normally opened contact KA1-2, second relay K A2 is provided with normally-closed contact KA2-1 and normally opened contact KA2-2, first contactor KM1 is provided with normally-closed contact KM1-1, normally opened contact KM1-2, 3rd contactor KM3 is provided with normally-closed contact KM3-1, normally opened contact KM3-2, with normally-closed contact KA2-1 after normally-closed contact KA1-1 is in parallel with normally opened contact KM1-2, KM3-1 and the first contactor KM1 connects successively, with normally opened contact KA1-2 after normally opened contact KA2-2 is in parallel with normally opened contact KM3-2, normally-closed contact KM1-1, 3rd contactor KM3 connects successively.
Specifically describe the working procedure of the cooling control system of air-cooled screw compressor of the present utility model below: the first temperature detect switch (TDS) TS1, second temperature detect switch (TDS) TS2, as fluid temperature (F.T.) T < T1 DEG C to be cooled, low-power power supply circuits close, first contactor KM1 obtains electric, the normally opened contact KM1-2 of KM1 closes, normally-closed contact KM1-1 disconnects, now, low-power power supply circuits closed-circuit working, the drive motor of centrifugal blower works under low-power power supply circuits, output power is little, the air quantity that centrifugal blower exports is low, thus the temperature drop that the fluid met in cooler flows through cooler is low, the requirement of cooled fluid temperature (F.T.) within the scope of set point of temperature, along with unit operation, the temperature of fluid to be cooled may rise gradually, when the temperature T of fluid to be cooled meets T1 DEG C≤T < T2 DEG C, first temperature detect switch (TDS) TS1 closes, first relay K A1 obtains electric, the normally-closed contact KA1-1 of the first relay K A1 disconnects, normally opened contact KA1-2 closes, now due to the first contactor KM1 normally opened contact KM1-2 still closed therefore low-power power supply circuits be still in closed state, and high power power supply circuits still disconnect, centrifugal blower still works under low-power power supply circuits, keep output power little, the state that the air quantity that centrifugal blower exports is low, if the temperature of fluid to be cooled continues to rise, as the temperature T >=T2 DEG C of fluid to be cooled, second temperature detect switch (TDS) TS2 action, second relay K A2 obtains electric, the normally-closed contact KA2-1 of the second relay K A2 disconnects, normally opened contact KA2-2 closes, now, first contactor KM1 dead electricity, the normally opened contact KM1-2 of the first contactor KM1 disconnects, normally-closed contact KM1-1 closes, 3rd contactor KM3 obtains electric, the normally opened contact KM3-2 of the 3rd contactor KM3 closes, normally-closed contact KM3-1 disconnects, now low-power power supply circuits disconnect, high power power supply circuits close, the power supply circuits of the drive motor of centrifugal blower switch to high power power supply circuits by low-power power supply circuits, centrifugal blower output power is large, discharge quantity of fan increases, impel the fluid temperature drop flowing through cooler large, guarantee cooling effect, there is surfusion in fluid to be cooled, namely the temperature T of fluid to be cooled falls after rise to when meeting T1 DEG C≤T < T2 DEG C, second temperature detect switch (TDS) TS2 disconnects, second relay K A2 dead electricity, the normally-closed contact KA2-1 of the second relay K A2 is closed, normally opened contact KA2-2 disconnects, now because the normally opened contact KM3-2 of the 3rd contactor KM3 still closes, therefore high power power supply circuits still remain closed, low-power power supply circuits also still remain open, and the drive motor of centrifugal blower continues powered operation under high power power supply circuits, if the surfusion of fluid to be cooled is not eliminated, the temperature T of fluid to be cooled falls after rise to when meeting T < T1 DEG C further, first temperature detect switch (TDS) TS1 disconnects, first relay K A1 dead electricity, the normally-closed contact KA1-1 of the first relay K A1 closes, normally opened contact KA1-2 disconnects, now, 3rd contactor KM3 dead electricity, the normally opened contact KM3-2 of the 3rd contactor KM3 disconnects, normally-closed contact KM3-1 closes, high power power supply circuits disconnect, low-power power supply circuits close, the power supply of the drive motor of centrifugal blower switches to low-power power supply circuits by high power power supply circuits, thus reduction cooling air quantity, reduce energy consumption, guarantee that fluid temperature (F.T.) to be cooled is in the temperature range required.
Claims (4)
1. the cooling control system of an air-cooled screw compressor, it comprises cooler and blower fan, the fluid to be cooled circulated is full of in described cooler, described cooler be installed on described blower fan air inlet and with described blower fan near being connected, it is characterized in that: the power input end of the drive motor of described blower fan connects low-power power supply circuits by the first contactor KM1, high power power supply circuits are connected by the 3rd contactor KM3, described low-power power supply circuits are normally-closed circuit, described high power power supply circuits are normal open circuit, the inlet of described cooler is provided with the first temperature detect switch (TDS) TS1 and the second temperature detect switch (TDS) TS2, described first temperature detect switch (TDS) TS1 is connected in series the first relay K A1, described second temperature detect switch (TDS) TS2 is connected in series the second relay K A2, described first relay K A1 and the second relay K A2 is connected in parallel, described first temperature detect switch (TDS) TS1, second temperature detect switch (TDS) TS2 Real-Time Monitoring flows through the temperature of the fluid to be cooled of described cooler, and control described first relay K A1 according to the temperature of described fluid to be cooled, second relay K A2 realizes described low-power power supply circuits, high power power supply circuits switch power supply.
2. the cooling control system of a kind of air-cooled screw compressor according to claim 1, it is characterized in that: described first relay K A1 is provided with normally-closed contact KA1-1 and normally opened contact KA1-2, described second relay K A2 is provided with normally-closed contact KA2-1 and normally opened contact KA2-2, described first contactor is provided with normally-closed contact KM1-1, normally opened contact KM1-2, described 3rd contactor KM3 is provided with normally-closed contact KM3-1, normally opened contact KM3-2, with described normally-closed contact KA2-1 after described normally-closed contact KA1-1 is in parallel with normally opened contact KM1-2, KM3-1 and the first contactor KM1 connects successively, with normally opened contact KA1-2 after normally opened contact KA2-2 is in parallel with normally opened contact KM3-2, normally-closed contact KM1-1, 3rd contactor KM3 connects successively.
3. the cooling control system of a kind of air-cooled screw compressor according to claim 1 and 2, it is characterized in that: described drive motor is also connected with the second contactor KM2, the electric power incoming line place of described drive motor is provided with circuit breaker Q L.
4. the cooling control system of a kind of air-cooled screw compressor according to claim 1 and 2, is characterized in that: described blower fan is centrifugal blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689430.9U CN205047439U (en) | 2015-09-08 | 2015-09-08 | Forced air cooling helical -lobe compressor's cooling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689430.9U CN205047439U (en) | 2015-09-08 | 2015-09-08 | Forced air cooling helical -lobe compressor's cooling control system |
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| Publication Number | Publication Date |
|---|---|
| CN205047439U true CN205047439U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689430.9U Withdrawn - After Issue CN205047439U (en) | 2015-09-08 | 2015-09-08 | Forced air cooling helical -lobe compressor's cooling control system |
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| CN (1) | CN205047439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134607A (en) * | 2015-09-08 | 2015-12-09 | 无锡压缩机股份有限公司 | Cooling control system of air-cooled screw compressor |
-
2015
- 2015-09-08 CN CN201520689430.9U patent/CN205047439U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134607A (en) * | 2015-09-08 | 2015-12-09 | 无锡压缩机股份有限公司 | Cooling control system of air-cooled screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160224 Effective date of abandoning: 20170704 |
|
| AV01 | Patent right actively abandoned |