CN116294325A - Control method and device of condensing unit and condensing unit - Google Patents
Control method and device of condensing unit and condensing unit Download PDFInfo
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- CN116294325A CN116294325A CN202111563677.2A CN202111563677A CN116294325A CN 116294325 A CN116294325 A CN 116294325A CN 202111563677 A CN202111563677 A CN 202111563677A CN 116294325 A CN116294325 A CN 116294325A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000000779 smoke Substances 0.000 claims abstract description 100
- 238000001514 detection method Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 19
- 230000001276 controlling effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/027—Condenser control arrangements
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Fire Alarms (AREA)
Abstract
The invention belongs to the technical field of condensing units, and particularly relates to a control method and device of a condensing unit and the condensing unit, wherein the method comprises the following steps: detecting the smoke concentration and the temperature of the current environment; judging whether the current environment has fire disaster or not according to the smoke concentration and the temperature of the current environment, and controlling a fire extinguishing module to extinguish the fire of the current environment when the current environment has the fire disaster, wherein the fire extinguishing module is arranged in the condensing unit; when the fire extinguishment is completed, the operation temperature of the condensing unit is adjusted according to the smoke concentration and the temperature of the current environment. According to the technical scheme, fire can be extinguished rapidly when a fire disaster is about to happen, normal operation of the unit, safety of goods and safety of personnel are guaranteed, and safety and stability of the unit are improved.
Description
Technical Field
The invention belongs to the technical field of condensing units, and particularly relates to a control method and device of a condensing unit and the condensing unit.
Background
In recent years, in the use process of a refrigeration house, fire safety accidents caused by artificial or natural factors frequently occur, such as sparks, smoke of people or open fire in the refrigeration house caused by aging and short circuit of a circuit. Due to the special structure of the refrigeration house, once the fire disaster occurs, the accident can not be treated in time, so that irrecoverable disasters can be caused, property loss can be caused, and casualties can be caused.
In the existing fire extinguishing system, a fire extinguishing device is generally arranged on the top of a warehouse, smoke alarm treatment is adopted, the distance is long, the response speed is low, the precision is low, the fire extinguishing is difficult, and the loss of goods is easy to cause in a large range of fire extinguishment.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects of the prior art and provide a control method and device of a condensing unit and the condensing unit, so as to solve the problems of long distance, slow response speed, low precision and difficult fire extinguishment in the prior art by adopting smoke alarm treatment.
According to a first aspect of embodiments of the present application, there is provided a control method of a condensing unit, the method including:
detecting the smoke concentration and the temperature of the current environment;
judging whether the current environment is in fire or not according to the smoke concentration and the temperature of the current environment, and controlling a fire extinguishing module to extinguish the current environment when the current environment is in fire, wherein the fire extinguishing module is arranged in a condensing unit;
and when the fire extinguishment is completed, adjusting the operation temperature of the condensing unit according to the smoke concentration and the temperature of the current environment.
Preferably, the method further comprises:
and when the current environment is in fire, controlling the alarm module to carry out audible and visual alarm.
Preferably, the method further comprises:
when the current environment is in fire, the condensing unit is closed, and the information of the fire occurring in the current environment is sent to a user side.
Preferably, the determining whether the current environment is fire according to the smoke concentration and the temperature of the current environment includes:
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the current environment is subjected to fire;
and if the smoke concentration of the current environment is smaller than a first safety threshold value or the temperature of the current environment is smaller than a second safety threshold value, the current environment is not subjected to fire.
Preferably, the controlling the fire extinguishing module to extinguish the fire in the current environment when the fire occurs in the current environment includes:
when the current environment is in fire, a control fire extinguishing module is used for extinguishing the current environment by using a gas extinguishing agent, and judging whether the fire extinguishing is completed or not according to the smoke concentration and the temperature of the current environment after a preset time period;
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the fire extinguishing is incomplete, and the information of incomplete fire extinguishing is sent to a user side;
and if the smoke concentration of the current environment is smaller than a first safety threshold value or the temperature of the current environment is smaller than a second safety threshold value, completing fire extinguishment.
Preferably, when the fire extinguishing is completed, the operation temperature of the condensing unit is adjusted according to the smoke concentration and the temperature of the current environment, including:
when fire extinguishment is completed, if the condensing unit does not fail and the smoke concentration of the current environment is zero, restarting the condensing unit, and adjusting the running temperature of the condensing unit to be the average value of the running temperatures of other condensing units in the current environment;
when the fire extinguishment is completed, if the condensing unit fails, the operation temperature of other condensing units in the current environment is adjusted according to the temperature of the current environment.
Preferably, the adjusting the operation temperature of other condensing units in the current environment according to the temperature of the current environment includes:
if the temperature of the current environment is equal to the temperature threshold value, the current operation temperature of the other condensing units is not required to be kept;
if the temperature of the current environment is greater than the temperature threshold, reducing the operation temperature of the other condensing units until the temperature of the current environment is equal to the temperature threshold, and keeping the current operation temperature of the other condensing units;
and if the temperature of the current environment is smaller than the temperature threshold, frequency reducing is performed on the other condensing units and/or the other condensing units enter a standby state until the temperature of the current environment is equal to the temperature threshold, and the current operation temperature of the other condensing units is kept.
Preferably, the method further comprises:
and storing the smoke concentration and the temperature of the current environment.
According to a second aspect of embodiments of the present application, there is provided a control device for a condensing unit, the device comprising:
the fire extinguishing module is used for extinguishing fire in the current environment;
the detection module is used for detecting the smoke concentration and the temperature of the current environment;
the control module is used for judging whether the current environment has fire or not according to the smoke concentration and the temperature of the current environment, and controlling the fire extinguishing module to extinguish the fire of the current environment when the current environment has fire;
and the adjusting module is used for adjusting the running temperature of the condensing unit according to the smoke concentration and the temperature of the current environment when the fire extinguishment is completed.
According to a third aspect of embodiments of the present application, there is provided a condensing unit, comprising:
the control device of the condensing unit.
The technical scheme provided by the embodiment of the invention can comprise the following beneficial effects: the smoke concentration and the temperature of the current environment are detected, so that the fire detection precision is improved; judging whether the current environment is in fire or not according to the smoke concentration and the temperature of the current environment, when the current environment is in fire, controlling a fire extinguishing module to extinguish the fire of the current environment, and rapidly extinguishing the fire when the fire is about to happen, so that the normal operation of a unit, the safety of goods and the safety of personnel are ensured, and the safety and the stability of the unit are improved; and when the fire extinguishing is completed, the operation temperature of the condensing unit is regulated according to the smoke concentration and the temperature of the current environment, so that the current environment temperature of the goods is kept at the optimal environment temperature.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart illustrating a method of controlling a condensing unit according to an exemplary embodiment;
FIG. 2 is a fire judgment chart shown according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method of controlling a condensing unit, according to an exemplary embodiment;
FIG. 4 is a block diagram illustrating a control apparatus of a condensing unit according to an exemplary embodiment;
fig. 5 is a flowchart illustrating an operation of a control device of a condensing unit according to an exemplary embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Fig. 1 is a flowchart illustrating a control method of a condensing unit according to an exemplary embodiment, which may be, but is not limited to, used for a terminal, as shown in fig. 1, including the steps of:
step 101: detecting the smoke concentration and the temperature of the current environment;
step 102: judging whether the current environment has fire disaster or not according to the smoke concentration and the temperature of the current environment, and controlling a fire extinguishing module to extinguish the fire of the current environment when the current environment has the fire disaster, wherein the fire extinguishing module is arranged in the condensing unit;
step 103: when the fire extinguishment is completed, the operation temperature of the condensing unit is adjusted according to the smoke concentration and the temperature of the current environment.
In some embodiments, the smoke concentration and temperature of the current environment may be detected, but are not limited to, using a smoke sensor and a temperature sensor, respectively.
According to the control method of the condensing unit, provided by the embodiment of the invention, the smoke concentration and the temperature of the current environment are detected, so that the fire detection precision is improved; judging whether the current environment is in fire or not according to the smoke concentration and the temperature of the current environment, when the current environment is in fire, controlling a fire extinguishing module to extinguish the fire of the current environment, and rapidly extinguishing the fire when the fire is about to happen, so that the normal operation of a unit, the safety of goods and the safety of personnel are ensured, and the safety and the stability of the unit are improved; and when the fire extinguishing is completed, the operation temperature of the condensing unit is regulated according to the smoke concentration and the temperature of the current environment, so that the current environment temperature of the goods is kept at the optimal environment temperature.
Further, the method further comprises:
when the fire disaster occurs in the current environment, the alarm module is controlled to carry out audible and visual alarm.
In some embodiments, the alarm module may, but is not limited to, sound and light alarms through LED lights and buzzers.
It can be understood that when the current environment is in fire, the control alarm module carries out audible and visual alarm, so that personnel can be prompted that the current environment is in fire hazard, and the life safety of the personnel is ensured.
Further, the method further comprises:
when the current environment is in fire, the condensing unit is turned off, and the information of the fire occurring in the current environment is sent to the user side.
Specifically, but not limited to, the information of the fire disaster occurring in the current environment can be sent to the user side through a GPRS communication module arranged in the condensing unit.
It can be understood that when a fire disaster happens, the information of the fire disaster is sent to the user side so as to achieve the purpose of reminding the user, the user can arrive at the scene in time after receiving the reminding, and whether the fire alarm call needs to be dialed or not is judged according to the scene fire disaster condition, so that the purpose of stopping damage in time is achieved, and the waste of public resources is avoided.
Further, in step 102, determining whether the current environment is fire according to the smoke concentration and the temperature of the current environment includes:
if the smoke concentration of the current environment is greater than or equal to the first safety threshold value and the temperature of the current environment is greater than or equal to the second safety threshold value, the current environment is subjected to fire;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, the current environment is not subjected to fire.
It should be noted that, in the embodiments of the present invention, the "first safety threshold" and the "second safety threshold" are not limited, and in some embodiments, may be set by those skilled in the art according to experimental data or the like.
It will be appreciated that the purpose of the first and second safety thresholds is to prevent the determination of fire occurrence from being affected by the operational status of the condensing unit itself. For example, when the condensing unit is in defrosting, the temperature of the electric heating belt is higher than a first safety threshold value due to the start of the electric heating belt, or when the relay is in fault suction, the electric heating temperature is always higher than the first safety threshold value, and at the moment, whether a fire disaster occurs or not is judged by combining the smoke concentration of the current environment, so that economic loss caused by misjudgment can be avoided.
For example, as shown in fig. 2, assuming that the smoke concentration and temperature of the current environment are at normal values TH0 when no fire occurs, the first safety threshold value and the second safety threshold value are set to TH1; when the smoke concentration and the temperature of the current environment are between TH0 and TH1, only the smoke concentration and the temperature of the current environment are stored, and an alarm can not be immediately given, so that abnormal information false alarm is prevented; when the smoke concentration and temperature of the current environment exceed TH1, sound and light alarm can be rapidly carried out, fire extinguishing treatment is carried out, after the fire extinguishing treatment is carried out in the (t 3-t 1) time period, the smoke concentration and temperature of the current environment continuously rise and reach a peak TH2 at t2, then the smoke concentration and temperature of the current environment can be reduced until the smoke concentration and temperature are 0, and the fire extinguishing module in the condensing unit is indicated to be used for completing fire extinguishing.
Further, in step 102, when the current environment is in fire, the fire extinguishing module is controlled to extinguish the fire in the current environment, including:
when a fire disaster occurs in the current environment, the control fire extinguishing module utilizes the gas fire extinguishing agent to extinguish the fire in the current environment, and judges whether the fire extinguishment is completed or not according to the smoke concentration and the temperature of the current environment after a preset time period;
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the fire extinguishing is incomplete, and the information of incomplete fire extinguishing is sent to the user side;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, the fire extinguishing is completed.
It can be understood that when putting out a fire, the smog concentration of current environment is greater than or equal to first safe threshold value and the temperature of current environment is greater than or equal to second safe threshold value, and the explanation only relies on the inside fire extinguishing module of condensing units to be unable to accomplish the fire extinguishing, needs the secondary to remind the user side, and the user side can dial the fire alarm telephone when receiving the secondary and reminds, puts out a fire through the fire department to accomplish the fire extinguishing, thereby reaches the purpose of in time stopping the loss.
It should be noted that, the embodiment of the present invention does not limit the "preset time period", and may be set by those skilled in the art according to experimental data and the like.
The embodiment of the invention does not limit the type of the gas extinguishing agent, and can be selected by a person skilled in the art according to experimental data and the like. In some embodiments, the fire area may be extinguished by, but not limited to, inert gas IG541 extinguishing agent by opening a gas fire extinguisher valve. It will be appreciated that the IG541 fire extinguishing agent is stored in a gaseous state, is non-conductive, does not destroy the ozone layer, is clean to extinguish the fire, leaves no residue, and is low in maintenance costs.
Further, step 103 includes:
when the fire extinguishment is completed, if the condensing unit does not fail and the smoke concentration of the current environment is zero, restarting the condensing unit, and adjusting the running temperature of the condensing unit to be the average value of the running temperatures of other condensing units in the current environment;
when the fire extinguishment is completed, if the condensing unit fails, the operation temperature of other condensing units in the current environment is adjusted according to the temperature of the current environment.
The operation temperature of the condensing unit is regulated, which is essentially to regulate the operation frequency of the condensing unit, raise the unit frequency to accelerate refrigeration when the ambient temperature is high, and operate at normal or low frequency when the ambient temperature is low or normal.
It can be understood that a plurality of condensing units can be installed in the common refrigeration house, when a certain condensing unit breaks down because of the conflagration, the temperature of guaranteeing the refrigeration house to reach the optimal temperature by other condensing units that do not break down, avoids the goods to damage because of the high temperature.
Further, according to the temperature of the current environment, adjusting the operation temperature of other condensing units in the current environment comprises:
if the temperature of the current environment is equal to the temperature threshold, maintaining the current operation temperature of other condensing units;
if the temperature of the current environment is greater than the temperature threshold, reducing the operation temperature of other condensing units until the temperature of the current environment is equal to the temperature threshold, and keeping the current operation temperature of other condensing units;
and if the temperature of the current environment is smaller than the temperature threshold, frequency reduction is performed on other condensing units and/or the other condensing units enter a standby state until the temperature of the current environment is equal to the temperature threshold, and the current running temperature of the other condensing units is kept.
It should be noted that the "temperature threshold" is not limited in the embodiments of the present invention, and in some embodiments, may be set by those skilled in the art according to experimental data or the like.
Further, the method further comprises:
the smoke concentration and temperature of the current environment are stored.
It can be appreciated that the purpose of storing the smoke concentration and the temperature of the current environment is to store the abnormal data when the smoke concentration of the current environment is greater than or equal to the first safety threshold and/or the temperature of the current environment is greater than or equal to the second safety threshold, so that the abnormal data can be conveniently detected whether the abnormality is caused by other faults, and a user can conveniently check the data and quickly maintain the data.
In order to further explain the control method of the condensing unit provided by the above embodiment, the embodiment of the present invention further provides a specific example for explanation, as shown in fig. 3, assuming that the current environment is a refrigerator, and a plurality of condensing units are disposed in the refrigerator, the method includes the following steps:
step 201: detecting the concentration and temperature of smoke in the refrigeration house;
step 202: judging whether fire disaster occurs according to the smoke concentration and the temperature in the refrigeration house, if the smoke concentration in the refrigeration house is greater than or equal to a first safety threshold value and the temperature in the refrigeration house is greater than or equal to a second safety threshold value, then the fire disaster occurs in the refrigeration house, and executing step 203;
if the smoke concentration in the refrigeration house is smaller than a first safety threshold value or the temperature in the refrigeration house is smaller than a second safety threshold value, no fire disaster occurs in the refrigeration house;
step 203: the fire extinguishing module is utilized to extinguish fire, a condensing unit at the place where the fire occurs is closed, the alarm module is controlled to carry out audible and visual alarm, and the information of the fire occurring in the current environment is sent to the user side to carry out first reminding;
step 204: judging whether fire extinguishment is completed or not according to the smoke concentration and the temperature of the current environment after a preset time period, if the smoke concentration of the current environment is greater than or equal to a first safety threshold and the temperature of the current environment is greater than or equal to a second safety threshold, completing fire extinguishment, and sending the information of incomplete fire extinguishment to a user side for secondary reminding;
if the smoke concentration of the current environment is less than the first safety threshold or the temperature of the current environment is less than the second safety threshold, completing fire extinguishment and executing step 205;
step 205: when the fire extinguishment is completed, judging whether a condensing unit at the fire disaster occurs or not, restarting the condensing unit if the condensing unit does not occur, and if the smoke concentration of the current environment is zero, and adjusting the running temperature of the condensing unit to be the average value of the running temperatures of other condensing units in a refrigeration house;
if the condensing unit at the fire breaks down, executing step 206;
step 206: according to the temperature of the current environment, the operation temperature of other condensing units in the refrigeration house is regulated;
if the temperature in the refrigeration house is equal to the temperature threshold value, the current operation temperature of other condensing units is kept;
if the temperature in the refrigeration house is greater than the temperature threshold, reducing the operation temperature of other condensing units until the temperature of the current environment is equal to the temperature threshold, and keeping the current operation temperature of other condensing units;
and if the temperature in the refrigeration house is smaller than the temperature threshold, frequency reduction is performed on other condensing units and/or the other condensing units enter a standby state until the temperature of the current environment is equal to the temperature threshold, and the current operation temperature of the other condensing units is kept.
According to the control method of the condensing unit, provided by the embodiment of the invention, the smoke concentration and the temperature of the current environment are detected, so that the fire detection precision is improved; judging whether the current environment is in fire or not according to the smoke concentration and the temperature of the current environment, when the current environment is in fire, controlling a fire extinguishing module to extinguish the fire of the current environment, and rapidly extinguishing the fire when the fire is about to happen, so that the normal operation of a unit, the safety of goods and the safety of personnel are ensured, and the safety and the stability of the unit are improved; and when the fire extinguishing is completed, the operation temperature of the condensing unit is regulated according to the smoke concentration and the temperature of the current environment, so that the current environment temperature of the goods is kept at the optimal environment temperature.
The embodiment of the invention also provides a control device of the condensing unit, as shown in fig. 4, the device comprises:
the fire extinguishing module is used for extinguishing fire in the current environment;
the detection module is used for detecting the smoke concentration and the temperature of the current environment;
the control module is used for judging whether the current environment has fire disaster or not according to the smoke concentration and the temperature of the current environment, and controlling the fire extinguishing module to extinguish the fire of the current environment when the current environment has fire disaster;
and the adjusting module is used for adjusting the running temperature of the condensing unit according to the smoke concentration and the temperature of the current environment when the fire extinguishment is completed.
In some embodiments, the detection module comprises:
a smoke sensor for detecting a smoke concentration of a current environment;
and the temperature sensor is used for detecting the temperature of the current environment.
Further, the device further comprises:
the alarm module is used for performing audible and visual alarm when a fire disaster occurs in the current environment;
and the control module is also used for controlling the alarm module to carry out audible and visual alarm when the current environment is in fire.
Further, the control module is further configured to:
when the current environment is in fire, the condensing unit is turned off, and the information of the fire occurring in the current environment is sent to the user side.
Further, the device further comprises: a GPRS communication module;
the control module performs information interaction with the user through the GPRS communication module.
Further, according to the smoke concentration and temperature of the current environment, judging whether the current environment has fire disaster or not, including:
if the smoke concentration of the current environment is greater than or equal to the first safety threshold value and the temperature of the current environment is greater than or equal to the second safety threshold value, the current environment is subjected to fire;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, the current environment is not subjected to fire.
Further, when a fire disaster occurs in the current environment, controlling the fire extinguishing module to extinguish the fire in the current environment, including:
when a fire disaster occurs in the current environment, the control fire extinguishing module utilizes the gas fire extinguishing agent to extinguish the fire in the current environment, and judges whether the fire extinguishment is completed or not according to the smoke concentration and the temperature of the current environment after a preset time period;
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the fire extinguishing is incomplete, and the information of incomplete fire extinguishing is sent to the user side;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, the fire extinguishing is completed.
Further, the adjusting module is specifically configured to:
when the fire extinguishment is completed, if the condensing unit does not fail and the smoke concentration of the current environment is zero, restarting the condensing unit, and adjusting the running temperature of the condensing unit to be the average value of the running temperatures of other condensing units in the current environment;
when the fire extinguishment is completed, if the condensing unit fails, the operation temperature of other condensing units in the current environment is adjusted according to the temperature of the current environment.
Further, according to the temperature of the current environment, adjusting the operation temperature of other condensing units in the current environment comprises:
if the temperature of the current environment is equal to the temperature threshold, maintaining the current operation temperature of other condensing units;
if the temperature of the current environment is greater than the temperature threshold, reducing the operation temperature of other condensing units until the temperature of the current environment is equal to the temperature threshold, and keeping the current operation temperature of other condensing units;
and if the temperature of the current environment is smaller than the temperature threshold, frequency reduction is performed on other condensing units and/or the other condensing units enter a standby state until the temperature of the current environment is equal to the temperature threshold, and the current running temperature of the other condensing units is kept.
In some embodiments, the control device of the condensing unit may be connected to the condensing unit by using a combination of wired connection and wireless connection, for small and medium-sized refrigerators, the distance between the condensing units may not exceed 100m, and when the condensing unit works in the refrigerator, the control device of the condensing unit is connected to a communication interface (e.g., BMS interface) of the condensing unit by using an RS485 communication method, so as to obtain the operation temperature of the condensing unit.
Further, the device further comprises:
and the storage module is used for storing the smoke concentration and the temperature of the current environment.
It should be noted that, in the control device for a condensing unit provided by the embodiment of the invention, other modules except for the alarm module are all arranged inside the condensing unit.
In order to further explain the control device of the condensing unit provided in the foregoing embodiment, an embodiment of the present invention further provides a workflow diagram of the control device of the condensing unit, as shown in fig. 5, including:
step 301: the detection module detects the smoke concentration and the temperature of the current environment;
step 302: the control module judges whether the current environment has fire disaster or not according to the smoke concentration and the temperature of the current environment;
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the current environment is subjected to fire, the fire extinguishing module is controlled to extinguish the fire of the current environment, meanwhile, the condensing unit is closed, the alarm module is controlled to carry out audible and visual alarm, and the information of the fire of the current environment is sent to the user side to carry out first reminding;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, the current environment does not generate fire;
step 303: the control module judges whether fire extinguishment is completed according to the smoke concentration and the temperature of the current environment, if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the fire extinguishment is incomplete, and the information of the incomplete fire extinguishment is sent to a user side for secondary reminding;
if the smoke concentration of the current environment is smaller than the first safety threshold value or the temperature of the current environment is smaller than the second safety threshold value, completing fire extinguishment;
step 304: the adjusting module judges whether the condensing unit at the fire disaster occurs or not, if the condensing unit at the fire disaster does not occur and the smoke concentration of the current environment is zero, the condensing unit is restarted, and the running temperature of the condensing unit is adjusted to be the average value of the running temperatures of other condensing units in the current environment;
and if the condensing units at the fire disaster occur to be in fault, adjusting the operation temperature of other condensing units in the current environment according to the temperature of the current environment.
According to the control device of the condensing unit, provided by the embodiment of the invention, the smoke concentration and the temperature of the current environment are detected through the detection module, so that the fire detection precision is improved; judging whether the current environment is fire or not through the control module according to the smoke concentration and the temperature of the current environment, when the current environment is fire, controlling the fire extinguishing module to extinguish the fire of the current environment, and rapidly extinguishing the fire when the fire is about to happen, so that the normal operation of the unit, the safety of goods and the safety of personnel are ensured, and the safety and the stability of the unit are improved; when the fire extinguishment is completed, the operation temperature of the condensing unit is adjusted according to the smoke concentration and the temperature of the current environment through the adjusting module, so that the current environment temperature of the goods is kept at the optimal environment temperature.
The embodiment of the invention also provides a condensing unit, which comprises:
the control device of the condensing unit is provided by the embodiment.
It can be understood that the above-provided device embodiments correspond to the above-described method embodiments, and corresponding specific details may be referred to each other, which is not described herein again.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method of controlling a condensing unit, the method comprising:
detecting the smoke concentration and the temperature of the current environment;
judging whether the current environment is in fire or not according to the smoke concentration and the temperature of the current environment, and controlling a fire extinguishing module to extinguish the current environment when the current environment is in fire, wherein the fire extinguishing module is arranged in a condensing unit;
and when the fire extinguishment is completed, adjusting the operation temperature of the condensing unit according to the smoke concentration and the temperature of the current environment.
2. The method according to claim 1, wherein the method further comprises:
and when the current environment is in fire, controlling the alarm module to carry out audible and visual alarm.
3. The method according to claim 1, wherein the method further comprises:
when the current environment is in fire, the condensing unit is closed, and the information of the fire occurring in the current environment is sent to a user side.
4. The method of claim 1, wherein said determining whether the current environment is fire based on the smoke concentration and temperature of the current environment comprises:
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the current environment is subjected to fire;
and if the smoke concentration of the current environment is smaller than a first safety threshold value or the temperature of the current environment is smaller than a second safety threshold value, the current environment is not subjected to fire.
5. The method of claim 1, wherein controlling the fire suppression module to suppress the current environment when the current environment is in fire comprises:
when the current environment is in fire, a control fire extinguishing module is used for extinguishing the current environment by using a gas extinguishing agent, and judging whether the fire extinguishing is completed or not according to the smoke concentration and the temperature of the current environment after a preset time period;
if the smoke concentration of the current environment is greater than or equal to a first safety threshold value and the temperature of the current environment is greater than or equal to a second safety threshold value, the fire extinguishing is incomplete, and the information of incomplete fire extinguishing is sent to a user side;
and if the smoke concentration of the current environment is smaller than a first safety threshold value or the temperature of the current environment is smaller than a second safety threshold value, completing fire extinguishment.
6. The method of claim 1, wherein said adjusting the operating temperature of said condensing unit when the fire is extinguished based on the smoke concentration and temperature of said current environment comprises:
when fire extinguishment is completed, if the condensing unit does not fail and the smoke concentration of the current environment is zero, restarting the condensing unit, and adjusting the running temperature of the condensing unit to be the average value of the running temperatures of other condensing units in the current environment;
when the fire extinguishment is completed, if the condensing unit fails, the operation temperature of other condensing units in the current environment is adjusted according to the temperature of the current environment.
7. The method of claim 6, wherein adjusting the operating temperature of other condensing units within the current environment based on the temperature of the current environment comprises:
if the temperature of the current environment is equal to a temperature threshold, maintaining the current operation temperature of the other condensing units;
if the temperature of the current environment is greater than the temperature threshold, reducing the operation temperature of the other condensing units until the temperature of the current environment is equal to the temperature threshold, and keeping the current operation temperature of the other condensing units;
and if the temperature of the current environment is smaller than the temperature threshold, frequency reducing is performed on the other condensing units and/or the other condensing units enter a standby state until the temperature of the current environment is equal to the temperature threshold, and the current operation temperature of the other condensing units is kept.
8. The method according to claim 1, wherein the method further comprises:
and storing the smoke concentration and the temperature of the current environment.
9. A control device for a condensing unit, the device comprising:
the fire extinguishing module is used for extinguishing fire in the current environment;
the detection module is used for detecting the smoke concentration and the temperature of the current environment;
the control module is used for judging whether the current environment has fire or not according to the smoke concentration and the temperature of the current environment, and controlling the fire extinguishing module to extinguish the fire of the current environment when the current environment has fire;
and the adjusting module is used for adjusting the running temperature of the condensing unit according to the smoke concentration and the temperature of the current environment when the fire extinguishment is completed.
10. A condensing unit, comprising:
the control device of the condensing unit of claim 9.
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