CN108168157B - Control system and control method of condensation water making device - Google Patents
Control system and control method of condensation water making device Download PDFInfo
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- CN108168157B CN108168157B CN201711288635.6A CN201711288635A CN108168157B CN 108168157 B CN108168157 B CN 108168157B CN 201711288635 A CN201711288635 A CN 201711288635A CN 108168157 B CN108168157 B CN 108168157B
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Abstract
The invention discloses a control system and a control method of a condensation water making device, wherein the control method comprises the following steps: s1, acquiring temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, wherein the first liquid level is higher than the second liquid level; s2, controlling the on or off of the circulating pump according to T1; and S3, controlling the opening or closing of the compressor according to T1 and T2. According to the invention, the temperature of the high liquid level and the low liquid level in the liquid storage area in the condensation water making device is measured, so that the switch of the compressor and the circulating pump is controlled, the circulating pump is turned off when the condensation efficiency is low, and the compressor is turned off when the cooling capacity is sufficient, so that the condensation water making efficiency is improved, and the power consumption of the whole system is effectively reduced.
Description
Technical Field
The invention relates to a condensation water making technology, in particular to a control system and a control method of a condensation water making device.
Background
In daily life, people use water every day, for example: drinking water, bathing, washing vegetables, cooking, etc. People have a great daily demand for water. However, in many parts of the world, the daily usage of water is limited, for example: desert areas with water shortage, remote mining areas, islands of stationed troops, and the like. It is difficult to supply fresh, sanitary drinking water to these places due to geographical restrictions. The fresh water in the regions usually needs to be supplemented by the aid of the hemlock precipitation, but the weather changes infrequently, so that the precipitation cannot stably and well meet the water requirements of people living in the regions. In theory, fresh water could be transported to the area on a regular basis, but the high cost makes it burdensome for the user.
Referring to fig. 1, the chinese patent application with the application number of 201510100620.7 in the prior art discloses a condensation water production device 100, which includes a first condensation circulation system 10, a second condensation circulation system 20 matching with the first condensation circulation system 10, and a water collection device 30. The first condensing cycle system 10 includes a compressor 11, a condenser 12, an evaporator 13, and a first cycle line 14 connecting the compressor 11, the condenser 12, and the evaporator 13 to form a closed circuit. The second condensing and circulating system 20 includes a liquid storage area 21 covering the evaporator 13, a circulating pump 22, a condensing area 23, and a second circulating line 24 connecting the liquid storage area 21, the circulating pump 22, and the condensing area 23 to form a closed loop. The water collecting device 30 is located directly below the condensation zone 23. The liquid storage area 21 is provided with an ice thickness detector to detect the thickness of ice in the liquid storage area 21, and when the thickness of the ice is smaller than a first preset threshold value, the compressor 11 starts to work and refrigerate; when the thickness of the ice is greater than the second preset threshold value, the compressor 11 stops operating.
However, the thickness measurement of ice in the liquid storage area is difficult, the thickness of different areas of the ice is different, the measurement error is large, meanwhile, a circulating pump in the device is always in a running state, and the power consumption of the whole device is large.
In view of the above problems, it is necessary to invent a control system of a condensation water making device and a control method thereof to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the technical problem of providing the control system and the control method of the condensation water making device, the control system and the control method can control the on-off of a compressor and a circulating pump in the condensation water making device in real time, and effectively reduce the power consumption of the whole condensation water making device.
In order to solve the technical problem, the technical scheme of the invention is realized as follows:
an embodiment of the present invention provides a method for controlling a condensation water production device, where the condensation water production device includes a first condensation circulation system, a second condensation circulation system, and a water collection device, the first condensation circulation system includes a compressor, a condenser, an evaporator, and a first circulation pipe connecting the compressor, the condenser, and the evaporator to form a closed loop, the second condensation circulation system includes a liquid storage region covering the evaporator and used for containing a refrigerant, a circulation pump, a condensation region, and a second circulation pipe connecting the liquid storage region, the circulation pump, and the condensation region to form a closed loop, and the water collection device is located below the condensation region, where the method includes the following steps:
s1, acquiring temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, wherein the first liquid level is higher than the second liquid level;
s2, controlling the on or off of the circulating pump according to T1;
and S3, controlling the opening or closing of the compressor according to T1 and T2.
As a further improvement of the present invention, the step S3 specifically includes:
comparing the temperatures T1 and T2 at the first liquid level and the second liquid level with the freezing point Ta of the refrigerating medium and the temperature value Tb when the density of the refrigerating medium is maximum;
if T1 is more than Ta, controlling the compressor to be in an opening state;
if T1 is less than or equal to Ta, when T1 is less than or equal to Ta and less than T2 is less than Tb, the compressor is controlled to be in an open state, and when T1 is less than T2 and less than or equal to Ta, the compressor is controlled to be in a close state.
As a further improvement of the invention, the refrigeration medium is water, Ta is 0 ℃, Tb is 4 ℃.
As a further improvement of the present invention, the method further comprises:
the compressor is manually controlled to be turned on or off.
As a further improvement of the present invention, the method further comprises:
manually closing the compressor, and keeping the circulating pump in an open state to condense water;
and comparing the T1 with a preset temperature threshold Tc, and if the T1 is more than Tc, closing the circulating pump to stop condensing the water.
As a further development of the invention, said preset temperature threshold Tc is greater than or equal to the temperature value Tb at which the density of the refrigeration medium is maximum.
An embodiment of the present invention provides a control device for a condensation water production device, where the condensation water production device includes a first condensation circulation system, a second condensation circulation system, and a water collection device, the first condensation circulation system includes a compressor, a condenser, an evaporator, and a first circulation pipe connecting the compressor, the condenser, and the evaporator to form a closed loop, the second condensation circulation system includes a liquid storage region covering the evaporator and used for containing a refrigerant, a circulation pump, a condensation region, and a second circulation pipe connecting the liquid storage region, the circulation pump, and the condensation region to form a closed loop, and the water collection device is located below the condensation region, where the control method includes the following modules:
the acquisition module is used for acquiring the temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, wherein the first liquid level is higher than the second liquid level;
a circulation pump control module for controlling the on or off of the circulation pump according to T1;
the compressor control module is used for controlling the opening or closing of the compressor according to T1 and T2, and specifically comprises the following steps:
comparing the temperatures T1 and T2 at the first liquid level and the second liquid level with the freezing point Ta of the refrigerating medium and the temperature value Tb when the density of the refrigerating medium is maximum;
if T1 is more than Ta, controlling the compressor to be in an opening state;
if T1 is less than or equal to Ta, when T1 is less than or equal to Ta and less than T2 is less than Tb, the compressor is controlled to be in an open state, and when T1 is less than T2 and less than or equal to Ta, the compressor is controlled to be in a close state.
An embodiment of the present invention provides a control system for a condensation water production device, where the condensation water production device includes a first condensation circulation system, a second condensation circulation system, and a water collection device, the first condensation circulation system includes a compressor, a condenser, an evaporator, and a first circulation pipe connecting the compressor, the condenser, and the evaporator to form a closed loop, the second condensation circulation system includes a liquid storage region, a circulation pump, a condensation region, and a second circulation pipe connecting the liquid storage region, the circulation pump, and the condensation region to form a closed loop, the water collection device is located below the condensation region, and the control system includes:
the temperature measuring module comprises a first temperature sensor and a second temperature sensor which are positioned in the liquid storage area, wherein a first liquid level where the first temperature sensor is positioned is higher than a second liquid level where the second temperature sensor is positioned;
the processor is connected with the first temperature sensor and the second temperature sensor and controls the on-off of the compressor and the circulating pump according to the temperature values of the first temperature sensor and the second temperature sensor;
the compressor includes:
in the first state, when T1 is more than Ta, the compressor is in the opening state;
in the second state, when Ta is more than or equal to T1 and is more than T2 and less than Tb, the compressor is in an opening state;
in the third state, when T1 is more than T2 and less than or equal to Ta, the compressor is in a closed state;
wherein, T1, T2 are the temperature value that first temperature sensor and second temperature sensor surveyed respectively, and Ta is the freezing point of refrigerant, and Tb is the temperature value when refrigerant density is the biggest, and Ta < Tb.
As a further improvement of the invention, the refrigeration medium is water, Ta is 0 ℃, Tb is 4 ℃.
The invention has the beneficial effects that:
through measuring the temperature of high liquid level and low liquid level in the liquid storage district among the condensation system water installation, and then the switch of control compressor and circulating pump, close the circulating pump when condensation inefficiency, close the compressor when cold volume is enough, improved the efficiency of condensation system water, and effectively reduced entire system's consumption.
Drawings
FIG. 1 is a schematic block diagram of a condensation water generator of the prior art;
FIG. 2 is a schematic block diagram of a control system of the condensation water production apparatus according to the present invention;
FIG. 3 is a schematic view showing the steps of the method for controlling the condensation water-making device according to the present invention;
FIG. 4 is a schematic flow chart showing a detailed control method of the condensation water making device according to the present invention;
fig. 5 is a schematic flow chart illustrating a control method of the condensation water making device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the invention shown in the drawings and described in accordance with the drawings are exemplary only, and the invention is not limited to these embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the condensation water making device 100 of the present invention comprises a first condensation circulation system 10, a second condensation circulation system 20 cooperating with the first condensation circulation system 10, and a water collecting device 30.
The first condensing cycle system 10 includes a compressor 11, a condenser 12, an evaporator 13, and a first cycle line 14 connecting the compressor 11, the condenser 12, and the evaporator 13 to form a closed loop. The second condensing cycle system 20 includes a liquid storage region 21 covering the evaporator 13, a circulation pump 22, a condensing region 23, and a second circulation line 24 connecting the liquid storage region 21, the circulation pump 22, and the condensing region 23 to form a closed loop. The water collecting device 30 is located directly below the condensation zone 23.
The liquid storage area 21 is used for containing a refrigeration medium, and the refrigeration medium flows from the liquid storage area 21 into the condensation area 23 through the second circulation pipeline 24 under the action of the circulation pump 22, and then flows back to the liquid storage area 21 from the condensation area 23. The evaporator 13 exchanges heat with a refrigerant medium located in the liquid storage region 21. The condensation zone 23 is exposed to air. When the refrigerant medium flows through the condensation zone 23, water vapor in the air condenses and liquefies on the surface of the condensation zone 23 and drops downward into the water collecting device 30 to be collected.
Preferably, the refrigeration medium in the invention is water, the freezing point of water is 0 ℃, the maximum density of water is 4 ℃, and the density of water at 0-4 ℃ is increased progressively.
Referring to fig. 2, in the first embodiment of the present invention, a control system 200 of a condensation water making device specifically includes:
a temperature measurement module 201 comprising a first temperature sensor 2011 (R1) and a second temperature sensor 2012 (R1) located within the liquid storage zone, the first temperature sensor being at a first liquid level higher than a second liquid level at which the second sensor is located;
and the processor 202 is connected with the first temperature sensor 2011 and the second temperature sensor 2012, and the processor 202 controls the on and off of the compressor 11 and the circulating pump 22 according to the temperature values of the first temperature sensor and the second temperature sensor.
The whole control system 200 is divided into two conditions of power-on and power-off, when the system is in a power-on state, whether the compressor and the circulating pump operate depends on temperature values measured by R1 and R2, the compressor can be automatically turned on or off after being manually powered on, but whether the circulating pump operates only automatically depends on the temperature value measured by R1.
Referring to fig. 3, the method for controlling the condensation water production apparatus in the present embodiment specifically includes:
s1, acquiring temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, namely temperature values measured by a first temperature sensor 2011 (R1) and a second temperature sensor 2012 (R1), wherein the first liquid level is higher than the second liquid level, and T1 is less than T2;
s2, controlling the on or off of the circulating pump according to T1;
and S3, controlling the opening or closing of the compressor according to T1 and T2.
Referring to fig. 4, the on/off of the circulation pump depends only on the temperature T1 at the first liquid level, and the step S2 specifically includes:
comparing the temperature T1 at the first liquid level to the freezing point Ta of the refrigerant medium;
if T1 is more than Ta, controlling the circulating pump to be in a closed state;
and if T1 is less than or equal to Ta, controlling the circulating pump to be in an opening state.
Further, in conjunction with fig. 4, the switching of the compressor depends on the temperatures T1, T2 at the first liquid level and the second liquid level, and the step S3 is specifically:
comparing the temperatures T1 and T2 at the first liquid level and the second liquid level with the freezing point Ta of the refrigerating medium and the temperature value Tb when the density of the refrigerating medium is maximum;
if T1 is more than Ta, controlling the compressor to be in an opening state;
if T1 is less than or equal to Ta, when T1 is less than or equal to Ta and less than T2 is less than Tb, the compressor is controlled to be in an open state, and when T1 is less than T2 and less than or equal to Ta, the compressor is controlled to be in a close state.
Preferably, in the present embodiment, the refrigeration medium is exemplified by water, and the freezing point Ta =0 ℃ and the temperature value Tb =4 ℃ when the density is maximum.
Therefore, the compressor and the circulation pump of the present invention include the following three states:
in the first state, when T1 is higher than 0 ℃, the compressor is in the opening state, and the circulating pump is in the closing state;
in the second state, when the temperature T1 is less than or equal to 0 ℃ and less than T2 and less than 4 ℃, the compressor is in the starting state, and the circulating pump is in the starting state;
and in the third state, when the temperature is more than T1 and less than or equal to 0 ℃ and T2, the compressor is in a closed state, and the circulating pump is in an open state.
In one embodiment of the present invention, the following table shows the various state temperature changes under theoretical conditions, provided that the liquid level temperature difference between R1 and R2 is 2 ℃.
Table 1: temperatures T1 and T2 measured at R1 and R2 under theoretical conditions
The control method of the present invention is further explained with reference to fig. 5.
When the first circulating system is started, the first temperature sensor R1 with high liquid level measures temperature, if the water temperature is higher, the compressor is automatically started, and the effect of condensed water is not great due to the higher water temperature, the circulating pump is not started, so that the power consumption is saved;
when the temperature of water (ice) measured by the first temperature sensor R1 is T1 not more than 0 ℃, the condensation effect is the best, the circulating pump is automatically started to carry out condensation water production, and the temperature of water T2 measured by the second temperature sensor R2 is more than 0 ℃;
when the temperature T2 is less than or equal to 0 ℃ (the temperature R1 meets the requirement that the temperature T1 is less than 0 ℃), the cold quantity of the liquid storage area is enough, refrigeration is not needed, the compressor is automatically closed, and the circulating pump continues to operate;
and when the temperature is more than or equal to 0 ℃ and less than T1 and less than T2 and less than 4 ℃, the press is restarted, and if the press is manually closed in the period, the circulating pump continues to operate to condense water until the temperature is T1 and Tc, and the circulating pump is automatically closed. Wherein Tc is a preset temperature threshold of the system, and the preset temperature threshold is generally greater than or equal to the temperature value when the density of the refrigeration medium is maximum, namely Tc is greater than or equal to 4 ℃.
Compared with the prior art, the invention controls the on-off of the compressor and the circulating pump by measuring the temperature of the high liquid level and the low liquid level in the liquid storage area of the condensation water making device, turns off the circulating pump when the condensation efficiency is low, and turns off the compressor when the cooling capacity is enough, thereby improving the condensation water making efficiency and effectively reducing the power consumption of the whole system.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the concrete description of the feasible embodiments of the present application, they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present application are intended to be included within the scope of the present application.
Claims (6)
1. A control method of a condensation water making device, the condensation water making device comprising a first condensation circulation system, a second condensation circulation system and a water collection device, the first condensation circulation system comprising a compressor, a condenser, an evaporator and a first circulation pipeline connecting the compressor, the condenser and the evaporator to form a closed loop, the second condensation circulation system comprising a liquid storage area, a circulation pump, a condensation area, which covers the evaporator and is used for containing a refrigeration medium, and a second circulation pipeline connecting the liquid storage area, the circulation pump and the condensation area to form a closed loop, the water collection device being located below the condensation area, the control method comprising the steps of:
s1, acquiring temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, wherein the first liquid level is higher than the second liquid level;
s2, controlling the on or off of the circulating pump according to T1;
s3, controlling the on or off of the compressor according to T1 and T2;
the step S3 specifically includes:
comparing the temperatures T1 and T2 at the first liquid level and the second liquid level with the freezing point Ta of the refrigerating medium and the temperature value Tb when the density of the refrigerating medium is maximum;
if T1 is more than Ta, controlling the compressor to be in an opening state;
if T1 is less than or equal to Ta, when T1 is less than or equal to Ta and less than T2 is less than Tb, the compressor is controlled to be in an open state, when T1 is more than T2 and less than or equal to Ta, the compressor is controlled to be in a close state, and the compressor is restarted until Ta is less than or equal to T1 and less than T2;
the step S2 includes:
if T1 is more than Ta, controlling the circulating pump to be in a closed state;
if T1 is less than or equal to Ta, controlling the circulating pump to be in an open state, and if the compressor is manually closed, keeping the circulating pump in the open state to condense water; and comparing the T1 with a preset temperature threshold Tc, and if T1 is more than Tc, closing the circulating pump to stop condensing to prepare water, wherein Tc is more than or equal to Tb.
2. The control method according to claim 1, wherein the refrigerant medium is water, Ta is 0 ℃, and Tb is 4 ℃.
3. The control method of claim 1, wherein the method further comprises:
the compressor is manually controlled to be turned on.
4. The utility model provides a condensation water making device's controlling means, condensation water making device includes first condensation circulation system, second condensation circulation system, water-collecting device, first condensation circulation system includes compressor, condenser, evaporimeter and connects compressor, condenser and evaporimeter are with the first circulation pipeline that forms closed loop, second condensation circulation system includes the cladding the evaporimeter is used for holding refrigerant's stock solution district, circulating pump, condensation area and connecting stock solution district, circulating pump and condensation area are with the second circulation pipeline that forms closed loop, water-collecting device is located the below of condensation area, its characterized in that, controlling means includes following module:
the acquisition module is used for acquiring the temperatures T1 and T2 of a first liquid level and a second liquid level in the liquid storage area in real time, wherein the first liquid level is higher than the second liquid level;
the circulating pump control module is used for controlling the opening or closing of a circulating pump according to T1, and specifically comprises: if T1 is more than Ta, controlling the circulating pump to be in a closed state; if T1 is less than or equal to Ta, controlling the circulating pump to be in an open state, and if the compressor is manually closed, controlling the circulating pump to keep in the open state for condensing water; comparing the T1 with a preset temperature threshold Tc, if T1 is more than Tc, closing the circulating pump to stop condensing to prepare water, wherein Tc is more than or equal to Tb;
the compressor control module is used for controlling the opening or closing of the compressor according to T1 and T2, and specifically comprises the following steps:
comparing the temperatures T1 and T2 at the first liquid level and the second liquid level with the freezing point Ta of the refrigerating medium and the temperature value Tb when the density of the refrigerating medium is maximum;
if T1 is more than Ta, controlling the compressor to be in an opening state;
if T1 is less than or equal to Ta, when T1 is less than or equal to Ta and less than T2 is less than Tb, the compressor is controlled to be in an open state, when T1 is more than T2 and less than or equal to Ta, the compressor is controlled to be in a close state until Ta is less than or equal to T1 and less than T2 is less than Tb, and the compressor is controlled to be restarted.
5. The utility model provides a control system of condensation water making device, condensation water making device includes first condensation circulation system, second condensation circulation system, water-collecting device, first condensation circulation system includes compressor, condenser, evaporimeter and connects compressor, condenser and evaporimeter are with the first circulation pipeline that forms closed loop, second condensation circulation system includes the cladding the evaporimeter is used for holding refrigerant's stock solution district, circulating pump, condensation area and connecting stock solution district, circulating pump and condensation area are with the second circulation pipeline that forms closed loop, water-collecting device is located the below of condensation area, its characterized in that, control system includes:
the temperature measuring module comprises a first temperature sensor and a second temperature sensor which are positioned in the liquid storage area, wherein a first liquid level where the first temperature sensor is positioned is higher than a second liquid level where the second temperature sensor is positioned;
the processor is connected with the first temperature sensor and the second temperature sensor and controls the on-off of the compressor and the circulating pump according to the temperature values of the first temperature sensor and the second temperature sensor;
the compressor includes:
in the first state, when T1 is more than Ta, the compressor is in the opening state;
in the second state, when Ta is more than or equal to T1 and is more than T2 and less than Tb, the compressor is in an opening state;
in the third state, when T1 is more than T2 and less than or equal to Ta, the compressor is in the off state, and the compressor is restarted until Ta is more than or equal to T1 and more than T2 and less than Tb;
wherein, T1 and T2 are temperature values measured by the first temperature sensor and the second temperature sensor respectively, Ta is the freezing point of the refrigeration medium, Tb is the temperature value when the density of the refrigeration medium is maximum, and Ta is less than Tb;
when T1 is more than Ta, the circulating pump is in a closed state; when T1 is less than or equal to Ta, the circulating pump is in an open state, and when the compressor is manually closed, the circulating pump keeps in the open state to condense the water until T1 is greater than a preset temperature threshold Tc, the circulating pump is closed and the condensation water making is stopped, wherein Tc is greater than or equal to Tb.
6. The control system of claim 5, wherein the refrigerant medium is water, Ta is 0 ℃ and Tb is 4 ℃.
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| CN201711288635.6A CN108168157B (en) | 2015-09-17 | 2015-09-17 | Control system and control method of condensation water making device |
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| US3120110A (en) * | 1961-10-11 | 1964-02-04 | Dairy Equipment Co | Vacuum milk cooler |
| US3859813A (en) * | 1973-11-16 | 1975-01-14 | Gen Motors Corp | Ice maker control circuit |
| EP1936300A1 (en) * | 2006-12-20 | 2008-06-25 | Ayman Adnan Salim Al-Maaitah | Water generation from air utilizing solar energy and adsorption refrigeration unit |
| KR101162977B1 (en) * | 2010-01-18 | 2012-07-12 | 김동현 | Apparatus for producing drinking-water |
| CN202582783U (en) * | 2012-05-08 | 2012-12-05 | 昆明理工大学 | Spiral optical fiber Bragg grating temperature sensing linear array |
| CN104234130A (en) * | 2013-06-06 | 2014-12-24 | 侯兆伟 | Water making machine and intelligent control method thereof |
| CN104746552B (en) * | 2015-03-06 | 2016-07-06 | 青岛海尔股份有限公司 | Condensating water-making apparatus |
| CN104775477A (en) * | 2015-04-16 | 2015-07-15 | 北京星达科技发展有限公司广东分公司 | Water collecting device |
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