CN202444317U - Control circuit for power supply of bacterium culture room constant temperature control system - Google Patents
Control circuit for power supply of bacterium culture room constant temperature control system Download PDFInfo
- Publication number
- CN202444317U CN202444317U CN2012200700819U CN201220070081U CN202444317U CN 202444317 U CN202444317 U CN 202444317U CN 2012200700819 U CN2012200700819 U CN 2012200700819U CN 201220070081 U CN201220070081 U CN 201220070081U CN 202444317 U CN202444317 U CN 202444317U
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- Prior art keywords
- power supply
- normally opened
- proportional valve
- relay
- control system
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Abstract
The utility model discloses a control circuit for a power supply of a bacterium culture room constant temperature control system. The control circuit comprises a programmable logic controller (PLC) controller, a power supply detection relay J3, at least three solid state relays (SSR1), at least three electric heaters, a proportioning valve, a control system power supply, an auxiliary power supply and at least two proportioning valve control relays J1 and J2, wherein after being connected in parallel, the control system power supply and the auxiliary power supply are connected in series to a three-phase output power supply T of the PLC controller; three-phase output power supplies T, S and R of the PLC controller are respectively connected with three pairs of normally opened contacts in an electricity touch device KM1 through a selective switch; control ends of the three pairs of normally opened contacts in the electricity touch device KM1 are respectively connected in series with one of the SSR1s; each SSR1 is connected in series with one electric heater; and the proportioning valve control relays J1 and J2 are connected in parallel and are connected in parallel with the power supply detection relay J3 after being connected in series with the proportioning valve. The control circuit can control and protect power supply, and ensures real and normal power supply for the system and the cultivation quality.
Description
Technical field
The utility model relates to a kind of bacteria growth chamber thermostatic control system power supply control circuit.
Background technology
In hospital clinical and medical research test, often need carry out operations such as bacterium separation and Culture to the biological specimen that contains various bacteria.Existing isolated culture method is to adopt manual mode; Sample is carried out necessary pre-treatment, and the sample streak inoculation after adopting inoculator to handle is again carried out separation and Culture to culture dish; So that the acquisition bacterial clump, evaluation and the medicaments insensitive of further doing bacterium detect.There is sizable drawback in this manual manipulation method, and it has following shortcoming:
(1) has certain communicable sample because operating personnel directly contact, cause infection easily, health of operators is constituted a serious threat;
(2) there is considerable human factor influence in operating process, thereby influences the quality of separation and Culture;
(3) the hand process is loaded down with trivial details, handles early stage to expend time in morely, and workload is bigger, and be unfavorable for sample with to work, thereby caused incuring loss through delay good cultivation opportunity, and then influence the separation and Culture quality.
Based on above deficiency, the bacteria growth chamber thermostatic control system arises at the historic moment, and bacteria growth chamber thermostatic control system at present commonly used does not take power supply controlled measures such as protection in the power supply part; If sudden power, then system can't normally move, and very strict to the requirement of temperature in the picture bacterium class separation and Culture process; Temperature is too high or mistake is low all can not obtain satisfactory product; In people or unmanned guard's process are arranged, if system cut-off can also in time be sought auxiliary equipment under the situation that the someone guards and supply power; If nobody sees that the rules system can only shut down wait; Often cause unfavorable conditions such as the bacterium product of studying or producing necroses, variation in the process of outage, cause the product that can not get wanting, lose bigger.
The utility model content
The purpose of the utility model promptly is to overcome the deficiency of prior art, and a kind of bacteria growth chamber thermostatic control system power supply control circuit is provided, and power supply is controlled protection; Guarantee system's normal power supply, other is provided with accessory power supply, still can operate as normal when guaranteeing system cut-off; Adopt the PLC three phase supply, can also carry out earth leakage protective, guarantee staff's personal safety; The utility model is simple in structure, and operating process is simple, adopts the automation mode to realize Bacteria Culture; Reduce even eliminate the artifical influence factor of Bacteria Culture process, reduce actual bodily harm, guarantee training quality operating personnel.
The purpose of the utility model realizes through following technical scheme: bacteria growth chamber thermostatic control system power supply control circuit; It comprises that PLC controller, power supply detect relay J 3, at least three SSR1, at least three electric heaters, proportioning valve M, control system power supply, accessory power supply, and at least two proportional valve control relay J 1, proportional valve control relay J 2;
Be serially connected in after described control system power supply, the accessory power supply parallel connection on the three-phase out-put supply T of PLC controller; Described control system power supply comprises control system 220V power supply and control system 24V DC power supply; The three-phase out-put supply T of PLC controller, S, R through selector switch Q1 respectively with electric shock device KM1 in three pairs of normally opened contacts be connected; The control end of three pairs of normally opened contacts is serially connected with a SSR1 respectively in the electric shock device KM1; Each SSR1 goes up electric heater of serial connection; The other end parallel connection of three electric heaters; Be connected with an external circuit on any circuit between three pairs of normally opened contacts in selector switch and the electric shock device KM1, external circuit detects relay J 3 through resistance wire FS with power supply and is connected, and the control end of normally opened contact, proportional valve control relay J 2 interior normally opened contacts is serially connected in two outputs of proportioning valve M respectively in the proportional valve control relay J 1; The other end parallel connection of normally opened contacts in normally opened contact, the proportional valve control relay J 2 in the proportional valve control relay J 1, proportional valve control relay J 1,2 parallel connections of proportional valve control relay J and be attempted by on the power supply detection relay J 3 after proportioning valve M connect.
The beneficial effect of the utility model is: the utility model provides a kind of bacteria growth chamber thermostatic control system power supply control circuit, has simple in structurely, and operating process is simple; Adopt the automation mode to realize Bacteria Culture, thereby the artifical influence factor in reduction even the elimination Bacteria Culture process reduce the actual bodily harm to operating personnel; Power supply is controlled protection, guarantee system's normal power supply, this practical information is provided with accessory power supply; Still can operate as normal when guaranteeing system cut-off, adopt the PLC three phase supply, can also carry out earth leakage protective; Guarantee staff's personal safety, guarantee advantages such as training quality.
Description of drawings
Fig. 1 is that the circuit of the utility model is formed sketch map;
Among the figure, J1, J2-proportional valve control relay, the J3-power supply detects relay.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further description, but the protection range of the utility model is not limited to the following stated.
As shown in Figure 1; Bacteria growth chamber thermostatic control system power supply control circuit; It comprises that PLC controller, power supply detect relay J 3, at least three SSR1, at least three electric heaters, proportioning valve M, control system power supply, accessory power supply, and at least two proportional valve control relay J 1, proportional valve control relay J 2;
Be serially connected in after described control system power supply, the accessory power supply parallel connection on the three-phase out-put supply T of PLC controller; Described control system power supply comprises control system 220V power supply and control system 24V DC power supply; The three-phase out-put supply T of PLC controller, S, R through selector switch Q1 respectively with electric shock device KM1 in three pairs of normally opened contacts be connected; The control end of three pairs of normally opened contacts is serially connected with a SSR1 respectively in the electric shock device KM1; Each SSR1 goes up electric heater of serial connection; The other end parallel connection of three electric heaters; Be connected with an external circuit on any circuit between three pairs of normally opened contacts in selector switch and the electric shock device KM1, external circuit detects relay J 3 through resistance wire FS with power supply and is connected, and the control end of normally opened contact, proportional valve control relay J 2 interior normally opened contacts is serially connected in two outputs of proportioning valve M respectively in the proportional valve control relay J 1; The other end parallel connection of normally opened contacts in normally opened contact, the proportional valve control relay J 2 in the proportional valve control relay J 1, proportional valve control relay J 1,2 parallel connections of proportional valve control relay J and be attempted by on the power supply detection relay J 3 after proportioning valve M connect.
Claims (1)
1. bacteria growth chamber thermostatic control system power supply control circuit; It is characterized in that: it comprises that PLC controller, power supply detect relay J 3, at least three SSR1, at least three electric heaters, proportioning valve, control system power supply, accessory power supply, and at least two proportional valve control relay J 1, proportional valve control relay J 2;
Be serially connected in after described control system power supply, the accessory power supply parallel connection on the three-phase out-put supply T of PLC controller; The three-phase out-put supply T of PLC controller, S, R through selector switch respectively with electric shock device KM1 in three pairs of normally opened contacts be connected; The control end of three pairs of normally opened contacts is serially connected with a SSR1 respectively in the electric shock device KM1; Each SSR1 goes up electric heater of serial connection; The other end parallel connection of three electric heaters; Be connected with an external circuit on any circuit between three pairs of normally opened contacts in selector switch and the electric shock device KM1; External circuit detects relay J 3 with power supply and is connected; In the proportional valve control relay J 1 in normally opened contact, the proportional valve control relay J 2 control end of normally opened contacts be serially connected in two outputs of proportioning valve respectively, the other end parallel connection of normally opened contacts in normally opened contact, the proportional valve control relay J 2 in the proportional valve control relay J 1, proportional valve control relay J 1,2 parallel connections of proportional valve control relay J and be attempted by on the power supply detection relay J 3 after proportioning valve connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200700819U CN202444317U (en) | 2012-02-29 | 2012-02-29 | Control circuit for power supply of bacterium culture room constant temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200700819U CN202444317U (en) | 2012-02-29 | 2012-02-29 | Control circuit for power supply of bacterium culture room constant temperature control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444317U true CN202444317U (en) | 2012-09-19 |
Family
ID=46825747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200700819U Expired - Lifetime CN202444317U (en) | 2012-02-29 | 2012-02-29 | Control circuit for power supply of bacterium culture room constant temperature control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444317U (en) |
-
2012
- 2012-02-29 CN CN2012200700819U patent/CN202444317U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |