CN201935329U - Controller used for refrigerant circulating combination type machine room special machine - Google Patents

Controller used for refrigerant circulating combination type machine room special machine Download PDF

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Publication number
CN201935329U
CN201935329U CN2010206196713U CN201020619671U CN201935329U CN 201935329 U CN201935329 U CN 201935329U CN 2010206196713 U CN2010206196713 U CN 2010206196713U CN 201020619671 U CN201020619671 U CN 201020619671U CN 201935329 U CN201935329 U CN 201935329U
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China
Prior art keywords
module
machine room
room special
special machine
type machine
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Expired - Fee Related
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CN2010206196713U
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Chinese (zh)
Inventor
张烁昕
董国锋
王文太
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CEE TECH And Management Pte Ltd
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CEE TECH And Management Pte Ltd
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Priority to CN2010206196713U priority Critical patent/CN201935329U/en
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Abstract

The utility model relates to a controller used for a refrigerant circulating combination type machine room special machine, which includes a singlechip module fixing control program, as well as a button module, a temperature detection module, a relay output module, a power module, a display module, a network communication module and a protection module matched with the singlechip module. The controller ensures that the refrigerant circulating combination type machine room special machine can run at a right work mode according to indoor and outdoor temperatures and a set temperature, so that the unique energy-saving advantages of the refrigerant circulating combination type machine room special machine can be fully played on the premise of ensuring the normal temperature range of the machine room, and the effects of energy conservation and emission reduction are maximized.

Description

A kind ofly be used for refrigerant circulation and with the controller of type machine room special machine
Technical field
The utility model relates to and a kind ofly is used for refrigerant circulation and with the controller of type machine room special machine, belong to the electric operation control device, be specially adapted to refrigerant circulation and use the type machine room special machine, thereby by to the detection of indoor and outdoor temperature with judge and control that refrigerant circulates and reach energy-saving effect with the operational mode of type machine room special machine.
Background technology
Along with the extensive use of mainframe computer and popularizing of mobile communication, machine room special machine equipment obtains widely applying.Because machine room special machine is the direct vaporation-type air-conditioning system of year round cooling operation, even so winter of cold (when outer temperature is very low) still need carry out refrigeration cool-down in to machine room, cause annual operating cost high, the start and stop loss of refrigeration system increases, service life of a machine shortens.For reducing the energy consumption of machine room special machine, Daikin Industrial Co., Ltd in 1985 is developed into the machine room special machine that has the refrigerant Natural Circulation to be the refrigerant circulation and to use the type machine room special machine, this machine is when ambient temperatures such as transition season or winter are low, by compressor out of service, the control mode of preferential running refrigerant Natural Circulation, can reduce power consumption significantly (referring to Sun Liying, horse is the best. the characteristic and the application of cryogen Natural Circulation air conditioner. and Harbin University of Commerce's journal (natural science edition), 2004,20 (6): 729-732.).
As shown in Figure 1, refrigerant circulates and is made of outdoor unit (4), indoor units (5) two parts with the type machine room special machine, constitutes an integral body by gas connection pipe (6) and liquid tube connector (7).When outdoor or indoor temperature are hanged down, open liquid line magnetic valve (12), close flue magnetic valve (11), compressor (10) is out of service, the low-pressure inlet pipe (16) of self-operated three-way valve (13) and blast pipe (15) automatic switching on, machine room special machine is pressed natural-circulation operation.At this moment, liquid refrigerants absorbs heat in evaporimeter (9) and flashes to gaseous state, low-pressure inlet pipe (16), exhaust outlet (15) through self-operated three-way valve (13) enter in the condenser (8) and are condensed into liquid, flow through liquid tube connector (7), magnetic valve (12), in the Returning evaporimeter (9), realize the room temperature lowering purpose.
When outdoor or indoor temperature is higher, when causing the Natural Circulation cooling capacity to reduce, then start compressor (10), closing liquid pipe magnetic valve (12), open flue magnetic valve (11), the high-pressure pipe (14) of self-operated three-way valve (13) and blast pipe (15) automatic switching on make machine room special machine move by kind of refrigeration cycle.At this moment, compressor is draws low pressure refrigerant steam from evaporimeter (9), enters in condenser (8) after compressed machine (10) compression, and be condensed into liquid, enters heat absorption evaporation in the evaporimeter (9) through throttling arrangement (21) step-down, realizes the purpose of room temperature lowering.
Above-mentioned two kinds of operational modes need be judged indoor and outdoor temperature at any time, and set situation according to the user and change by adjusting each device running status, at present existing air-conditioner controller to the outdoor temperature detectability a little less than, controllable device number is less, but user's setup parameter deficiency can't accurately be controlled its normal operation.
The utility model content
Shortcoming at above-mentioned prior art, the purpose of this utility model provides and a kind ofly is used for refrigerant circulation and with the controller of type machine room special machine, to realize to judge indoor and outdoor temperature at any time, and set situation according to the user, carry out the conversion of two kinds of mode of operations by adjusting each device running status, thereby effectively improve the runnability of machine room special machine.
The purpose of this utility model realizes by the following technical solutions:
A kind ofly be used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that, comprise power module, CPU module, key-press module, temperature detecting module, relay output module, fault detection module, network communication module, LCD MODULE and the module that resets certainly; Power module is CPU module, key-press module, temperature detecting module, relay output module, fault detection module, network communication module, LCD MODULE and the module for power supply that resets certainly, and key-press module, temperature detecting module, relay output module, fault detection module, network communication module, LCD MODULE and the module that resets certainly are connected with the input/output interface of CPU module respectively.
Preferably, described CPU module is made up of single-chip microcomputer that is solidified with control program and crystal oscillation assembly.
Preferably, described temperature detecting module comprises the high precision fast A/D converter that is connected with the single-chip microcomputer input interface, the high-precision amplifying that is connected with A/D converter and some biasing resistors.
Preferably, described relay output module has and is no less than 8 relays that are used for control contactor.
The controller that the utility model provides has the following advantages and beneficial effect: can make correctly, move control in time, reliably to the refrigerant circulation and with the type machine room special machine, be in particular in:
1. temperature detecting module in real time in the sensing chamber, outdoor temperature.
2. the effectively a plurality of device work such as the inside and outside blower fan in control room, magnetic valve, compressor of many group switching value output modules.
3. the network communication interface module allows the user according to can service condition and a large amount of operational factor of environment set.
Description of drawings
Fig. 1 is prior art " the refrigerant circulation is also used a type machine room special machine " fundamental diagram.
The circuit block diagram of the controller that Fig. 2 provides for the utility model.
The name of each parts of Fig. 1 is called:
The 1-outdoor fan; The 2-indoor fan; The 4-off-premises station; The 5-indoor set; The 6-gas connection pipe; 7-liquid tube connector; The 8-condenser; The 9-evaporimeter; The 10-compressor; 11-flue magnetic valve; 12-liquid line magnetic valve; The 13-self-operated three-way valve; The 14-low-pressure inlet pipe; The 15-blast pipe; The 16-high-pressure pipe; The 17-gas-liquid separator; The 18-filter; 19-high pressure reservoir; The 20-oil eliminator; 21-heating power formula expansion valve.
The name of each parts of Fig. 2 is called:
31-power module, 32-CPU module, 33-key-press module, 34-temperature detecting module, 35-relay output module, 36-fault detection module, 37-network communication module, 38-LCD MODULE, 39-are from resetting module.
The specific embodiment
Below in conjunction with 2 pairs of specific embodiment further instructions of the present utility model of accompanying drawing.
With reference to accompanying drawing 2, the utility model is a kind ofly to be used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that, comprise power module 31, CPU module 32, key-press module 33, temperature detecting module 34, relay output module 35, fault detection module 36, network communication module 37, LCD MODULE 38 and the module 39 that resets certainly.
Power module 31 comprises high-tension resistive, thermistor, filter capacitor, rectifier bridge, transformer, voltage-stablizer, overvoltage protector, high-voltage capacitance and filter capacitor, and this power module provides+5V to CPU module 32, provides+24V to other modules.
CPU module 32 comprises single-chip microcomputer, filter capacitor, biasing resistor and crystal oscillator, is solidified with control program in the single-chip microcomputer, and crystal oscillator provides accurate operating frequency to single-chip microcomputer.
Key-press module 33 comprises highly sensitive button, pull-up resistor, high accuracy regulator potentiometer, filter capacitor and some biasing resistors, can be to CPU module 32 control signals such as input start, shutdown and setup parameter.
Temperature detecting module 34 is by the A/D converter that is connected with the single-chip microcomputer input interface, and the high-precision amplifying that is connected with A/D converter and some biasing resistors constitute; A/D converter is sent the actual temperature signal that records into single-chip microcomputer, and single-chip microcomputer is controlled the running of air-conditioning automatically according to design temperature and observed temperature, the environment temperature row is regulated, and on display screen temperature data is shown.
Relay output module 35 comprises high power relay, protection diode, faulty action preventing relay and output isolation optocoupler; directly control refrigerant circulation and with the high, medium and low three kinds of rotating speeds of magnetic valve, compressor and the blower fan of type machine room special machine by the single-chip microcomputer output signal, thereby reach the purpose of controlling unit operation.
Network communication module 37 has been used general integration module, form the complete two serial communication interfaces of RS485 that meet national standard, maximum communication distance can reach 1000 meters, can transmit with central controller or the dynamic environment monitoring network information of carrying out, and realizes network team control intellectualized operation and management.
LCD MODULE 38 is a slice LCD LCDs, according to the control situation of CPU module 32, shows refrigerant circulation in real time and with duty, indoor and outdoor temperature, the design temperature of type machine room special machine, information such as operational factor, fault alarm.
From the module 39 that resets are the special-purpose integration modules of protection; provide a kind of " house dog " function to CPU module 32; promptly when CPU module 32 because during various interference " deadlock "; module 39 can reset automatically from resetting; and can preserve control operation information automatically, make the original duty of the very fast recovery of CPU module 32.
Below in conjunction with accompanying drawing 1 and 2 pairs of operation principles of the present utility model of accompanying drawing and various process further instruction.
During unit operation, set by key-press module 33 or network communication module 37: cryogenic temperature T1, wind pushing temperature T2 and natural-circulation operation temperature Δ T.
When temperature detecting module 34 detects indoor temperature t1>cryogenic temperature T1, send instruction by CPU module 32 to relay output module 35, opening chamber's inner blower 1, outdoor fan 2, flue magnetic valve 11, compressor 10; Closing liquid pipe magnetic valve 12.
When temperature detecting module 34 detects cryogenic temperature T1>indoor temperature t1>wind pushing temperature T2, and during indoor temperature t1-outdoor temperature t2>natural-circulation operation temperature Δ T, send instruction by CPU module 32 to relay output module 35, opening chamber's inner blower 1, outdoor fan 2, liquid line magnetic valve 11; Close flue magnetic valve 11, compressor 10.
When temperature detecting module 34 detects indoor temperature t1<wind pushing temperature T2, send instruction by CPU module 32 to relay output module 35, opening chamber's inner blower 1; Close outdoor fan 2, liquid line magnetic valve 11, flue magnetic valve 12, compressor 10.
When fault detection module 36 detects fault-signal, send instruction by CPU module 32 to relay output module 35, close all components and parts; Send instruction to LCD MODULE 38 and network communication module 37, show the report fault message.
The controller that the utility model provides provides the setting authority of multiple operational factor, and the user can set proper running parameters according to building environment.Simultaneously, the controller that the utility model provides can be in real time accurately in the sensing chamber, outdoor temperature, effectively a plurality of device work such as the inside and outside blower fan in control room, magnetic valve, compressor, thereby can make correctly, move in time, reliably control to the refrigerant circulation and with the type machine room special machine according to user's setup parameter, improving the runnability of unit, is a kind ofly to be more suitable for being used for the refrigerant circulation and with the controller of type machine room special machine.

Claims (4)

1. one kind is used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that, comprise power module (31), CPU module (32), key-press module (33), temperature detecting module (34), relay output module (35), fault detection module (36), network communication module (37), LCD MODULE (38) and the module (39) that resets certainly;
Power module (31) is CPU module (32), key-press module (33), temperature detecting module (34), relay output module (35), fault detection module (36), network communication module (37), LCD MODULE (38) and the module (39) that resets certainly power supply, and key-press module (33), temperature detecting module (34), relay output module (35), fault detection module (36), network communication module (37), LCD MODULE (38) and the module that resets certainly (39) are connected with the input/output interface of CPU module (32) respectively.
2. a kind ofly be used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that: described CPU module (32) is made up of single-chip microcomputer that is solidified with control program and crystal oscillation assembly according to claim 1 is described.
3. a kind ofly be used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that: described temperature detecting module (34) comprises the high precision fast A/D converter that is connected with the single-chip microcomputer input interface, the high-precision amplifying that is connected with A/D converter and some biasing resistors according to claim 1 is described.
4. a kind ofly be used for refrigerant circulation and with the controller of type machine room special machine, it is characterized in that: described relay output module (35) has and is no less than 8 relays that are used for control contactor according to claim 1 is described.
CN2010206196713U 2010-11-23 2010-11-23 Controller used for refrigerant circulating combination type machine room special machine Expired - Fee Related CN201935329U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206196713U CN201935329U (en) 2010-11-23 2010-11-23 Controller used for refrigerant circulating combination type machine room special machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206196713U CN201935329U (en) 2010-11-23 2010-11-23 Controller used for refrigerant circulating combination type machine room special machine

Publications (1)

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CN201935329U true CN201935329U (en) 2011-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101982707A (en) * 2010-11-23 2011-03-02 时代嘉华(中国)科技有限公司 Controller for refrigerant circulation blending machine room special machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101982707A (en) * 2010-11-23 2011-03-02 时代嘉华(中国)科技有限公司 Controller for refrigerant circulation blending machine room special machine

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110817

Termination date: 20131123