CN109855223B - Wet film water supply system, water temperature control method and device thereof and air conditioner - Google Patents

Wet film water supply system, water temperature control method and device thereof and air conditioner Download PDF

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Publication number
CN109855223B
CN109855223B CN201910144879.XA CN201910144879A CN109855223B CN 109855223 B CN109855223 B CN 109855223B CN 201910144879 A CN201910144879 A CN 201910144879A CN 109855223 B CN109855223 B CN 109855223B
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wet film
water
temperature
heat exchanger
water tank
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CN109855223A (en
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卢文彪
刘金霖
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
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Abstract

The invention discloses a wet film water supply system, which comprises: a wet film humidifier for adjusting air humidity; a water tank for supplying water to the wet film humidifier; the heating unit is connected between the water outlet of the water tank and the water inlet of the wet film humidifier; the control unit is electrically connected with the wet film humidifier and the heating unit respectively; the wet film humidifier and the water tank are internally provided with temperature sensors, the temperature sensors are electrically connected with the control unit, and the control unit controls the heating unit to heat water supplied by the water tank to the wet film humidifier according to signals sent by the temperature sensors. The invention also discloses a wet film water supply water temperature control method and device, an air conditioner and a readable storage medium. The invention heats the water temperature in the water tank so as to enable the temperature of the wet film to be higher than the dew point temperature, thereby ensuring the stable and controllable humidity of the data computer room.

Description

Wet film water supply system, water temperature control method and device thereof and air conditioner
Technical Field
The invention relates to the field of humidification of wet membranes of air conditioners, in particular to a wet membrane water supply system, a water temperature control method and device thereof, an air conditioner and a readable storage medium.
Background
Because the dry air is easy to generate static electricity in winter, and the data machine room has high requirements on the temperature and the humidity of the indoor environment, the air conditioner of the machine room has temperature and humidity control, and the common humidification method can be wet film humidification. The wet film humidification belongs to isenthalpic humidification, and must guarantee that humidification water supply temperature is greater than the corresponding dew point temperature of the air after being handled, current wet film humidifier directly uses municipal tap water as humidification water supply, and nevertheless the municipal tap water temperature is lower when winter, and when wet film water supply temperature was less than the dew point temperature of the air in second heat exchanger exit, cool off dehumidification to the air on the contrary and handle, has reduced the humidity in the data computer lab.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a wet film water supply system, a water temperature control method thereof, a wet film water supply water temperature control device, an air conditioner and a readable storage medium, and aims to solve the problem that when the temperature of the wet film water supply water is lower than the dew point temperature of a second heat exchanger, air is cooled and dehumidified, so that the humidity in a data machine room is reduced.
In order to achieve the above object, the present invention provides a wet film water supply system comprising:
a wet film humidifier for adjusting air humidity;
a water tank for supplying water to the wet film humidifier;
the heating unit is connected between the water outlet of the water tank and the water inlet of the wet film humidifier;
the control unit is electrically connected with the wet film humidifier and the heating unit respectively;
the wet film humidifier and the water tank are internally provided with temperature sensors, the temperature sensors are electrically connected with the control unit, and the control unit controls the heating unit to heat water supplied by the water tank to the wet film humidifier according to signals sent by the temperature sensors.
Preferably, the heating unit comprises an electric heater and/or a first heat exchanger, wherein the first heat exchanger is connected with a heat exchange unit, and the first heat exchanger heats water provided by the water tank to the wet film humidifier through heat provided by the heat exchange unit;
when the heating unit comprises an electric heater and a first heat exchanger, the electric heater is connected with the first heat exchanger in parallel, a water outlet of the water tank is connected with a three-way water valve, the three-way water valve is respectively connected with the water tank, the electric heater and the first heat exchanger, and the three-way water valve is electrically connected with the control unit.
Optionally, the heat exchange unit at least comprises a compressor, a throttling device and a second heat exchanger, and the first heat exchanger is connected between the compressor and the throttling device, so that the compressor, the first heat exchanger, the throttling device and the second heat exchanger form a heat exchange circulation loop.
Optionally, the heat exchange unit further includes a third heat exchanger, the third heat exchanger is connected between the first heat exchanger and the throttling device, the compressor, the first heat exchanger, the third heat exchanger, the throttling device and the second heat exchanger are sequentially connected to form a heat exchange circulation loop, wherein the first heat exchanger is a double-pipe heat exchanger.
In order to achieve the above object, the present invention provides a wet film water supply temperature control method, comprising the steps of:
in the humidification process, the temperature of the water tank and the dew point temperature of the second heat exchanger are obtained in real time or at regular time;
judging whether the temperature of the water tank is less than or equal to the air dew point temperature;
and when the temperature of the water tank is less than or equal to the air dew point temperature, controlling a heating unit to heat water provided by the water tank to the wet film humidifier.
Preferably, the step of controlling the heating unit to heat the water supplied from the water tank to the wet film humidifier includes:
turning on an electric heater to heat water provided by the water tank to the wet film humidifier;
or operating the heat exchange unit so that the first heat exchanger heats the water provided by the water tank to the wet film humidifier.
Preferably, the step of controlling the heating unit to heat the water supplied from the water tank to the wet film humidifier includes:
judging whether the heat exchange unit is in a running state or not;
when the heat exchange unit is in an operating state, controlling a three-way water valve to communicate a water tank and the first heat exchanger;
and when the heat exchange unit is in a non-running state, the electric heater is started, and the three-way water valve is controlled to be communicated with the water tank and the electric heater.
Preferably, after the step of turning on the electric heater, the method further comprises:
acquiring a temperature difference value between the wet film temperature and the dew point temperature;
when the temperature difference value is larger than a first preset threshold value, reducing the heating power of the electric heater;
and when the temperature difference value is smaller than a second preset threshold value, increasing the heating power of the electric heater, wherein the first preset threshold value is larger than the second preset threshold value.
Preferably, after the step of controlling the three-way water valve to communicate the water tank with the first heat exchanger, the method further comprises the following steps:
obtaining the temperature difference value between the wet film temperature and the dew point temperature;
when the temperature difference value is larger than the first preset threshold value, reducing the opening degree of the three-way water valve;
and when the temperature difference value is smaller than a second preset threshold value, increasing the opening degree of the three-way water valve, wherein the first preset threshold value is larger than the second preset threshold value.
In addition, in order to achieve the above object, the present invention provides a wet film supply water temperature control device, including:
the system comprises a processor, a memory and a wet film water supply water temperature control program which is stored on the memory and can run on the processor, wherein the wet film water supply water temperature control program realizes the steps of the wet film water supply water temperature control method when being executed by the processor.
In addition, in order to achieve the above object, the present invention further provides an air conditioner comprising the wet film water supply system as described above and the wet film water supply water temperature control device as described above.
In addition, to achieve the above object, the present invention further provides a readable storage medium having stored thereon a wet film supply water temperature control program, which when executed by a processor, implements the steps of the wet film supply water temperature control method as described above.
The invention provides a wet film water supply system and a water temperature control method thereof, a wet film water supply water temperature control device, an air conditioner and a readable storage medium, wherein the wet film water supply system comprises: the wet film humidifier comprises a wet film humidifier body, a water tank, a heating unit and a control unit, wherein the control unit controls the heating unit to heat water supplied by the water tank to the wet film humidifier body, so that the water temperature of a wet film of the wet film humidifier body is higher than the dew point temperature of air, and the air is prevented from being cooled and dehumidified when the water temperature of the wet film water supply is lower than the dew point temperature of a second heat exchanger, so that the humidity in a data machine room is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a wet film water supply system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hardware operating environment of a wet film water supply and temperature control device according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for controlling water temperature of wet film supply according to a first embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for controlling water temperature of wet film supply according to a second embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a method for controlling water temperature of wet film supply according to a third embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a method for controlling water temperature of wet film supply according to a fourth embodiment of the present invention;
FIG. 7 is a schematic flow chart illustrating a method for controlling water temperature of wet film water supply according to a fifth embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a wet film water supply system including:
the wet film humidifier 1 is used for adjusting air humidity;
a water tank 2 for supplying water to the wet film humidifier 1;
the heating unit is connected between the water outlet of the water tank 2 and the water inlet of the wet film humidifier 1;
and the wet film humidifier 1 and the heating unit are respectively and electrically connected with the control unit.
The wet film water supply system that this embodiment provided is applied to air conditioner like in the air conditioning equipment, also promptly wet film water supply system sets up in the air conditioning equipment, and during concrete humidification process, air conditioning equipment's fan rotates, drives the air and flows through wet film humidifier 1 back from the air intake, and wet film humidifier 1 is with air humidification, and then sends out from air conditioning equipment's air outlet, gets into indoor air humidity with the regulation room.
Based on the humidification effect that the temperature of water in the water tank 2 can influence the system, probably become cooling dehumidification by the humidification, so in order to guarantee the humidification effect, when the temperature of water tank 2 is less than the dew point temperature of air conditioner second heat exchanger 6, need heat the water that water tank 2 provided, this embodiment wet membrane water supply system sets up heating element between water tank 2 and wet membrane humidifier 1, realize sending to wet membrane humidifier 1 after heating the water that water tank 2 provided, wherein, when the temperature of water tank 2 is less than the dew point temperature of the second heat exchanger 6 (evaporimeter during refrigeration) export of air conditioner, heat the water that the water tank provided.
Further, different water temperatures also have an influence on the humidification effect of the wet film humidifier 1, and under the same effect, the higher the water temperature is, the higher the power of the heating unit is, which causes resource waste, so that temperature sensors are respectively arranged in the wet film humidifier 1 and the water tank 2, the temperature sensors are electrically connected with the control unit, and the control unit controls the heating unit to heat the water provided by the water tank 2 to the wet film humidifier 1 according to signals sent by the temperature sensors. That is, the control unit determines the heating temperature according to the temperature of the wet film humidifier 1 and the temperature of the water in the water tank 2, and then controls the heating unit to reasonably heat according to the heating temperature, so that the resource waste is reduced while the humidifying effect is ensured.
In the embodiment, the temperature of the water provided by the water tank 2 to the wet film humidifier 1 is heated to be higher than the dew point temperature at the outlet of the second heat exchanger 6 of the air conditioner, and then the air is humidified, so that the humidification effect is ensured.
Optionally, the heating unit comprises an electric heater 3 or a first heat exchanger 4, wherein the first heat exchanger 4 is connected with a heat exchange unit, and the first heat exchanger 4 heats water provided by the water tank 2 to the wet film humidifier 1 through heat provided by the heat exchange unit. That is, an electric heater is connected between the water outlet of the water tank 2 and the water inlet of the wet film humidifier 1, and the control unit controls the electric heater to heat the water provided by the water tank 2 and then send the water to the wet film humidifier 1. Or, be connected with first heat exchanger 4 between the delivery port of water tank 2 and the water inlet of wet film humidifier 1, and first heat exchanger 4 is connected with the heat transfer unit, when the heat transfer unit provides heat for first heat exchanger 4, water that water tank 2 provided is heated to first heat exchanger 4, and water that water tank 2 provided is sent to after entering first heat exchanger 4 heat transfer wet film humidifier 1 again, wherein, this embodiment the heat transfer unit is air conditioning equipment's refrigeration cycle unit, and air conditioning equipment is in the refrigeration cycle process, and the heat that high temperature high pressure refrigerant emitted is for the water heating that water tank 2 provided.
It can be understood that the heating unit can also include an electric heater 3 and a first heat exchanger 4 at the same time, the electric heater 3 and the first heat exchanger 4 are connected in parallel, a three-way water valve 5 is connected to a water outlet of the water tank 2, the three-way water valve 5 is respectively connected to the water tank 2, the electric heater 3 and the first heat exchanger 4, and the three-way water valve 5 is electrically connected to the control unit. The heating unit provided in this embodiment includes both the electric heater 3 and the first heat exchanger 4, so as to prevent the water temperature in the water tank 2 from being heated by the electric heater 3 when the heat exchange unit does not provide heat for the first heat exchanger 4.
Specifically, the three-way water valve 5 is an electronic valve, the three-way water valve 5 includes three interfaces, the three interfaces form two passages, one of the interfaces is communicated with the water outlet of the water tank 2, the other two interfaces are respectively communicated with the electric heater 3 and the first heat exchanger 4, the three-way water valve 5 is electrically connected with the control unit, the control unit controls the three-way water valve 5 to connect the water tank 2 with the electric heater 3, or the water tank 2 is connected with the first heat exchanger 4, when the three-way water valve 5 is connected with the water tank 2 with the electric heater 3, the water provided by the water tank 2 is heated by the electric heater 3, when the three-way water valve 5 is communicated with the water tank 2 with the first heat exchanger 4, the water provided by the water tank 2 is heated by the first heat exchanger 4.
It can be understood that the first heat exchanger 4 is a sleeve, the first heat exchanger 4 includes a water flow channel and a refrigerant channel, the water flow channel and the refrigerant channel are arranged at an interval, or the refrigerant channel is wrapped on the periphery of the water flow channel, the three-way water valve 5 is communicated with the water flow channel, and when a refrigerant flows through the refrigerant channel, water in the water flow channel is heated.
The heat exchange unit at least comprises a compressor 7, a throttling device 9 and a second heat exchanger 6, wherein the first heat exchanger 4 is connected between the compressor 7 and the throttling device 9, so that the compressor 7, the first heat exchanger 4, the throttling device 9 and the second heat exchanger 6 form a heat exchange circulation loop, specifically a refrigeration circulation loop, the first heat exchanger 4 is a sleeve, and the second heat exchanger 6 is an evaporator. In the refrigeration cycle loop, the heat emitted by the high-temperature and high-pressure refrigerant released by the compressor 7 is utilized to heat the water provided by the water tank 2, and meanwhile, the second heat exchanger 6 also plays a role in cooling the indoor temperature, so that the high-efficiency utilization of resources is ensured.
Optionally, the heat exchange unit further includes a third heat exchanger 8, the third heat exchanger 8 is connected between the first heat exchanger 6 and the throttling device 9, the compressor 7, the first heat exchanger 4, the third heat exchanger 8, the throttling device 9, and the second heat exchanger 6 are sequentially connected to form a heat exchange circulation loop, specifically, a refrigeration circulation loop, and the third heat exchanger 8 is a condenser. The first heat exchanger 4 is located between the compressor 7 and the third heat exchanger 8, and a refrigerant flows through the first heat exchanger 4 to release heat after being subjected to high pressure by the compressor, so that the maximum heat can be provided for the first heat exchanger 4.
In this embodiment, the wet film water supply system includes: wet membrane humidifier 1, water tank 2, the heating unit, the control unit, because of the heating unit has heated the water supply of water tank 2 flow direction wet membrane humidifier 1, guaranteed that wet membrane temperature is higher than dew point temperature, thereby avoided cooling the problem of dehumidification processing the humidity that has reduced in the data computer lab to the air when wet membrane water supply temperature is less than the dew point temperature of the 6 export air of second heat exchanger, guaranteed that the humidity of data computer lab is stable and controllable.
The invention also provides a method for adjusting the temperature and the humidity of the air conditioner, as shown in fig. 3, fig. 3 is a schematic diagram of a hardware operating environment of a terminal according to the embodiment of the invention;
the terminal of the embodiment of the invention is a wet film water supply and water temperature control device which comprises an air conditioner.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware structure of an apparatus according to an embodiment of the present invention.
Referring to fig. 1, the apparatus may include: a processor 1001, such as a CPU, a memory 1002, a communication bus 1003, and a network interface 1004. The communication bus 1003 is used for implementing connection communication between the components in the device. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1002 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1002 may alternatively be a storage device separate from the processor 1001. As shown in fig. 1, the memory 1002, which is a kind of computer storage medium, may include therein an operating system, a network communication module, and a wet film supply water temperature control program.
Optionally, the device may further include a camera, RF (Radio Frequency) circuitry, sensors, audio circuitry, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust brightness of the display screen according to brightness of ambient light, and the proximity sensor may turn off the display screen and/or backlight when the smart terminal moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of the intelligent terminal, and related functions (such as pedometer and tapping) for vibration recognition; of course, the intelligent terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the configuration of the device shown in fig. 1 is not intended to be limiting of the device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
In the hardware involved in the device shown in fig. 1, the network interface 1004 can be used for updating the wet film water supply temperature control program and receiving the operation instruction; and the processor 1001 may be configured to call the wet film supply water temperature control program stored in the memory 1002, and perform the following operations:
in the humidification process, the temperature of the water tank and the dew point temperature of the second heat exchanger are obtained in real time or at regular time;
judging whether the temperature of the water tank is less than or equal to the air dew point temperature;
and when the temperature of the water tank is less than or equal to the air dew point temperature, controlling a heating unit to heat water provided by the water tank to the wet film humidifier.
Further, the processor 1001 may be configured to call the wet film supply water temperature control program stored in the memory 1002, and further perform the following operations:
turning on an electric heater to heat water provided by the water tank to the wet film humidifier;
or operating the heat exchange unit so that the first heat exchanger heats the water provided by the water tank to the wet film humidifier.
Further, the processor 1001 may be configured to call the wet film supply water temperature control program stored in the memory 1002, and further perform the following operations:
judging whether the heat exchange unit is in a running state or not;
when the heat exchange unit is in an operating state, controlling a three-way water valve to communicate a water tank and the first heat exchanger;
and when the heat exchange unit is in a non-running state, the electric heater is started, and the three-way water valve is controlled to be communicated with the water tank and the electric heater.
Further, the processor 1001 may be configured to call the wet film supply water temperature control program stored in the memory 1002, and further perform the following operations:
acquiring a temperature difference value between the wet film temperature and the dew point temperature;
when the temperature difference value is larger than a first preset threshold value, reducing the heating power of the electric heater;
and when the temperature difference value is smaller than a second preset threshold value, increasing the heating power of the electric heater, wherein the first preset threshold value is larger than the second preset threshold value.
Further, the processor 1001 may be configured to call the wet film supply water temperature control program stored in the memory 1002, and further perform the following operations:
obtaining the temperature difference value between the wet film temperature and the dew point temperature;
when the temperature difference value is larger than the first preset threshold value, reducing the opening degree of the three-way water valve;
and when the temperature difference value is smaller than a second preset threshold value, increasing the opening degree of the three-way water valve, wherein the first preset threshold value is larger than the second preset threshold value.
Referring to fig. 3, fig. 3 is a first embodiment of the wet film water supply temperature control method according to the present invention, which includes:
step S10, in the humidification process, acquiring the temperature of the water tank and the dew point temperature of the second heat exchanger in real time or at regular time;
the wet film water supply temperature control method provided by the invention is mainly used for determining the heating quantity according to the temperature of the wet film humidifier and the temperature of water in the water tank, and further controlling the heating unit to reasonably heat according to the heating quantity. The invention provides a wet film water supply water temperature control method, and relates to a terminal comprising an air conditioner.
According to the technical scheme provided by the invention, the humidifying effect of the system is influenced based on the water temperature in the water tank, and the humidifying effect is possibly changed into cooling and dehumidifying, so that in order to ensure the humidifying effect, when the temperature of the water tank is lower than the dew point temperature at the outlet of the air conditioner, the water provided by the water tank needs to be heated. The dew point temperature refers to the temperature at which the air is cooled to saturation without changing both the moisture content and the air pressure. The air conditioner automatically detects the current indoor humidity, and when the current indoor humidity is lower than a preset humidity threshold value, the wet film humidifier is started, wherein the preset humidity threshold value can be 45% -65%. In the dehumidification process of opening the wet film humidifier, the temperature of the water tank is acquired through the water tank water supply temperature sensor in real time or at regular time, and the air dew point temperature is acquired through the temperature and humidity sensor.
Step S20, judging whether the water tank temperature is less than or equal to the air dew point temperature;
and step S30, controlling a heating unit to heat water provided by the water tank to the wet film humidifier when the temperature of the water tank is less than or equal to the air dew point temperature.
In the technical scheme that this embodiment provided, air conditioning equipment's fan rotates to drive the air and flow through wet membrane humidifier back from the air intake, wet membrane humidifier is with air humidification, and then sends out the air after will humidifying from air conditioning equipment's export, gets into indoor air humidity with the regulation. However, when the temperature of the water tank is less than or equal to the air dew point temperature, the negative effects of condensation and dehumidification can be achieved after the air flows through the wet film humidifier from the air inlet, and therefore when the temperature of the water tank is less than or equal to the air dew point temperature, the heating unit is controlled to heat the water provided by the water tank to the wet film humidifier, and the humidification effect is guaranteed. It will be appreciated that the heating unit may be an electric heater, a heat circulation loop comprising a compressor, a double pipe heat exchanger, a condenser, a throttling arrangement, a second heat exchanger, and other heating means or heating loops which may be used to heat the water supply in the water tank. The invention can heat the water provided by the water tank to the wet film humidifier through the electric heater, can also heat the water provided by the water tank to the wet film humidifier through the heat circulation loop, and can also heat the water provided by the water tank to the wet film humidifier through the electric heater and the heat circulation loop when the temperature of the wet film is far lower than the dew point temperature.
When the air conditioner detects that the temperature of the wet film is smaller than the dew point temperature in real time or at regular time, the air conditioner controls the heating unit to heat the water supply of the wet film so that the water temperature of the water supplied by the wet film is larger than the dew point temperature, thereby avoiding the problem that the air is cooled and dehumidified when the temperature of the water supplied by the wet film is lower than the dew point temperature of the outlet air of the second heat exchanger, reducing the humidity in the data machine room, and ensuring the stable and controllable humidity of the data machine room.
Further, referring to fig. 4, fig. 4 is a second embodiment of the method for controlling water temperature of wet film water supply according to the present invention, and based on the above embodiment, the step S30 includes:
step S31, turning on an electric heater to heat the water provided by the water tank to the wet film humidifier;
step S32, or operating the heat exchange unit, so that the first heat exchanger heats the water provided by the water tank to the wet film humidifier.
In the technical scheme that this embodiment provided, because the temperature of water in the wet film is higher, the indoor temperature probably lasts and rises among the humidification process, and when the air conditioner detected that indoor temperature is higher than preset temperature threshold value, the refrigeration mode was opened in the time of opening the wet film humidifier, for indoor cooling. It will be appreciated that the cooling mode is turned on, i.e. the heat exchange unit is operated. When the heat exchange unit is operated, the electric heater judges whether to continue electric heating according to the difference between the wet film temperature and the dew point temperature. Namely, the electric heater can be turned on or turned off while the heat exchange unit is operated. When the temperature of the water tank is judged to be less than or equal to the air dew point temperature, the electric heater can be started to heat the water supplied by the water tank to the wet film humidifier, or the heat exchange unit is operated to enable the first heat exchanger to heat the water supplied by the water tank to the wet film humidifier, so that the humidifying effect of the wet film humidifier is ensured.
The air conditioner comprises an electric heating mode and two modes of heat exchange between a first heat exchanger in the heat exchange unit and water provided by the water tank to the wet film humidifier, so that water provided by the water tank to the wet film humidifier can be heated by the most energy-saving heating mode, and the water provided by the water tank to the wet film humidifier can be heated by the most energy-saving heating mode.
Further, referring to fig. 5, fig. 5 is a third embodiment of the method for controlling water temperature of wet film water supply according to the present invention, and on the basis of the embodiment shown in fig. 3, the step S30 includes:
step S33, judging whether the heat exchange unit is in an operating state;
step S34, when the heat exchange unit is in an operating state, controlling a three-way water valve to communicate a water tank and a first heat exchanger;
and step S35, when the heat exchange unit is in a non-running state, starting the electric heater, and controlling a three-way water valve to communicate the water tank and the electric heater.
In the technical scheme provided by this embodiment, the three-way water valve is an electronic valve and includes three interfaces, the three interfaces form two passages, one of the interfaces is communicated with the water outlet of the water tank, the other two interfaces are respectively communicated with the electric heater and the first heat exchanger, and the control unit controls the three-way water valve to connect the water tank with the electric heater or the water tank with the first heat exchanger. The controller judges whether the heat exchange unit is in an operating state, when the heat exchange unit is in the operating state, the three-way water valve is controlled to be communicated with the water tank and the first heat exchanger, and when the three-way water valve is communicated with the water tank and the first heat exchanger, water provided by the water tank is heated by the first heat exchanger. When the heat exchange unit is in a non-operation state, the three-way water valve is controlled to be communicated with the water tank and the electric heater, and water provided by the water tank is heated by the electric heater.
It is understood that the heat exchange unit at least comprises a compressor, a throttling device and a second heat exchanger, and the first heat exchanger is connected between the compressor and the throttling device, so that the compressor, the first heat exchanger, the throttling device and the second heat exchanger form a heat exchange circulation loop. It can be understood that when the compressor is turned on or the cooling mode is turned on, it is determined that the heat exchange unit is in an operating state.
The air conditioner controls the connecting circuit of the three-way water valve according to the running state of the compressor, so that the water provided by the water tank to the wet film humidifier is flexibly heated by two heating modes.
Further, referring to fig. 6, fig. 6 is a fourth embodiment of the method for controlling water temperature of wet film water supply according to the present invention, and on the basis of the embodiment shown in fig. 4, before and after the step S31, the method further includes:
step S40, acquiring a temperature difference value between the wet film temperature and the dew point temperature;
step S50, when the temperature difference value is larger than a first preset threshold value, reducing the heating power of the electric heater;
and step S60, when the temperature difference value is smaller than a second preset threshold value, increasing the heating power of the electric heater, wherein the first preset threshold value is larger than the second preset threshold value.
In the technical scheme that this embodiment provided, different temperature also has an influence to the humidification effect of wet film humidifier, and under the same effect, the temperature is higher, and heating unit's power is big more, and indoor temperature also risees fast thereupon, still need open the refrigeration mode after the indoor temperature risees and reduce indoor temperature, causes the wasting of resources. Therefore, temperature sensors are arranged in the wet film humidifier and the water tank, and the control unit controls the heating unit to heat water provided by the water tank to the wet film humidifier according to signals sent by the temperature sensors. The control unit determines the heating amount according to the temperature of the wet film humidifier and the temperature of water in the water tank, and then controls the heating unit to reasonably heat according to the heating amount, so that the humidifying effect is guaranteed, and the resource waste is reduced.
Specifically, the present embodiment is a method of heating water flowing from a water tank to a wet film humidifier by an electric heater. The air conditioner acquires wet film temperature according to a wet film water supply temperature sensor, acquires dew point temperature according to a temperature and humidity sensor, then acquires wet film temperature and a temperature difference value between the dew point temperatures, further determines the heating quantity of the heating unit according to the temperature difference value, reduces the heating power of the electric heater when the temperature difference value is larger than a first preset threshold value, increases the heating power of the electric heater when the temperature difference value is smaller than a second preset threshold value, and maintains the heating power of the electric heater when the temperature difference value is larger than or equal to the first preset threshold value and smaller than or equal to the second preset threshold value. The first preset threshold may be greater than the second preset threshold, and the first preset threshold may be 2 ℃ and the second preset threshold may be 1 ℃. It will be appreciated that a preset adjustment power, for example 10 watts, may be set, the control unit adjusting the heating power in accordance with the preset adjustment power.
The air conditioner adjusts the heating power of the electric heater according to the temperature difference value between the wet film temperature and the dew point temperature, so that the condition that the temperature of the wet film water supply water is lower than the dew point temperature of the air at the outlet of the second heat exchanger to cool and dehumidify the air is avoided, the humidity in a data machine room is reduced, and the resource waste caused by excessive heating is avoided.
Further, referring to fig. 7, fig. 7 is a fifth embodiment of the method for controlling water temperature of wet film water supply according to the present invention, and in addition to the embodiment shown in fig. 5, the method further includes, before and after step S34:
step S70, acquiring the temperature difference between the wet film temperature and the dew point temperature;
step S80, when the temperature difference value is larger than the first preset threshold value, reducing the opening degree of the three-way water valve;
and step S90, when the temperature difference value is smaller than a second preset threshold value, increasing the opening degree of the three-way water valve, wherein the first preset threshold value is larger than the second preset threshold value.
In the technical scheme that this embodiment provided, different temperature also has an influence to the humidification effect of wet film humidifier, and under the same effect, the temperature is higher, and heating unit's power is big more, and indoor temperature also risees fast thereupon, still need open the refrigeration mode after the indoor temperature risees and reduce indoor temperature, causes the wasting of resources. Therefore, temperature sensors are arranged in the wet film humidifier and the water tank, and the control unit controls the heating unit to heat water provided by the water tank to the wet film humidifier according to signals sent by the temperature sensors. The control unit determines the heating amount according to the temperature of the wet film humidifier and the temperature of water in the water tank, and then controls the heating unit to reasonably heat according to the heating amount, so that the humidifying effect is guaranteed, and the resource waste is reduced.
Specifically, the present embodiment is a method of heating water flowing from a water tank to a wet film humidifier by a heating unit. The heating unit mainly heats water flowing to the wet film humidifier through a first heat exchanger, namely a sleeve pipe heating water tank. Because the heat emitted by the high-temperature and high-pressure refrigerant in the refrigerant channel in the sleeve is basically unchanged, the water outlet quantity of the three-way water valve needs to be controlled so as to control the temperature of the water flowing to the wet film humidifier from the water tank. The air conditioner acquires wet film temperature according to a wet film water supply temperature sensor, acquires dew point temperature according to a temperature and humidity sensor, then acquires wet film temperature and a temperature difference value between the dew point temperatures, and then determines the opening degree of the three-way water valve according to the temperature difference value, when the temperature difference value is greater than a first preset threshold value, reduces the opening degree of the three-way water valve, and when the temperature difference value is less than a second preset threshold value, increases the opening degree of the three-way water valve. And when the temperature difference value is greater than or equal to a first preset threshold value and less than or equal to a second preset threshold value, maintaining the opening degree of the three-way water valve. It will be appreciated that the first predetermined threshold is greater than the second predetermined threshold. The first preset threshold may be 2 deg.c and the second preset threshold may be 1 deg.c.
The air conditioner adjusts the opening degree of the three-way water valve according to the temperature difference value between the wet film temperature and the dew point temperature, so that the condition that the temperature of the wet film water supply water is lower than the dew point temperature of the air at the outlet of the second heat exchanger to cool and dehumidify the air is avoided, and the humidity in the data machine room is reduced.
In order to achieve the above object, the present invention further provides a wet film water supply temperature control device, which includes a processor, a memory, and a wet film water supply temperature control program stored in the memory and operable on the processor, wherein the wet film water supply temperature control program, when executed by the processor, implements the steps of the wet film water supply temperature control method.
In order to achieve the above object, the present invention further provides an air conditioner, which includes the above wet film water supply system and the above wet film water supply water temperature control device.
In order to achieve the above object, the present invention further provides a readable storage medium having a wet film supply water temperature control program stored thereon, wherein the wet film supply water temperature control program, when executed by a processor, implements the steps of the wet film supply water temperature control method as described above.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a television, a mobile phone, a computer, an apparatus, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. A wet film water supply water temperature control method is applied to a wet film water supply system and is characterized in that the wet film water supply system comprises a wet film humidifier, a water tank, a heating unit, a control unit and a temperature and humidity sensor, wherein the wet film humidifier is used for adjusting air humidity; the water tank is used for supplying water to the wet film humidifier; the heating unit is connected between the water outlet of the water tank and the water inlet of the wet film humidifier; the wet film humidifier and the heating unit are respectively and electrically connected with the control unit; the temperature and humidity sensor is used for detecting the dew point temperature of air and is connected with the control unit; temperature sensors are arranged in the wet film humidifier and the water tank, and the temperature sensors are electrically connected with the control unit;
the heating unit comprises a first heat exchanger, the first heat exchanger is connected with a heat exchange unit, and the first heat exchanger heats water provided by the water tank to the wet film humidifier through heat provided by the heat exchange unit; the heat exchange unit at least comprises a compressor, a throttling device and a second heat exchanger, wherein the first heat exchanger is connected between the compressor and the throttling device so as to enable the compressor, the first heat exchanger, the throttling device and the second heat exchanger to form a heat exchange circulation loop; the temperature and humidity sensor is arranged adjacent to the second heat exchanger;
the wet film water supply water temperature control method comprises the following steps:
in the humidification process, the temperature of the water tank and the air dew point temperature of the second heat exchanger are obtained in real time or at regular time;
judging whether the temperature of the water tank is less than or equal to the air dew point temperature;
and when the temperature of the water tank is less than or equal to the air dew point temperature, controlling a heating unit to heat water provided by the water tank to the wet film humidifier according to the acquired signals of the temperature sensor and the temperature and humidity sensor.
2. The wet film water supply temperature control method according to claim 1, wherein the heating unit further comprises an electric heater, the electric heater is connected in parallel with the first heat exchanger, a three-way water valve is connected to a water outlet of the water tank, the three-way water valve is respectively connected to the water tank, the electric heater and the first heat exchanger, and the three-way water valve is electrically connected to the control unit;
the step of controlling the heating unit to heat the water supplied from the water tank to the wet film humidifier includes:
turning on an electric heater to heat water provided by the water tank to the wet film humidifier;
or operating the heat exchange unit so that the first heat exchanger heats the water provided by the water tank to the wet film humidifier.
3. The wet film water supply temperature control method as claimed in claim 2, wherein the step of controlling the heating unit to heat the water supplied from the water tank to the wet film humidifier comprises:
judging whether the heat exchange unit is in a running state or not;
when the heat exchange unit is in an operating state, controlling a three-way water valve to communicate a water tank and the first heat exchanger;
and when the heat exchange unit is in a non-running state, the electric heater is started, and the three-way water valve is controlled to be communicated with the water tank and the electric heater.
4. The method for controlling water temperature of wet film water supply according to claim 3, further comprising, after the step of turning on the electric heater:
acquiring a temperature difference value between the wet film temperature and the air dew point temperature;
when the temperature difference value is larger than a first preset threshold value, reducing the heating power of the electric heater;
and when the temperature difference value is smaller than a second preset threshold value, increasing the heating power of the electric heater, wherein the first preset threshold value is larger than the second preset threshold value.
5. The method for controlling the temperature of the water supplied by the wet film according to claim 4, wherein after the step of controlling the three-way water valve to communicate the water tank with the first heat exchanger, the method further comprises the following steps:
obtaining the temperature difference value between the wet film temperature and the air dew point temperature;
when the temperature difference value is larger than the first preset threshold value, reducing the opening degree of the three-way water valve;
and when the temperature difference value is smaller than a second preset threshold value, increasing the opening degree of the three-way water valve, wherein the first preset threshold value is larger than the second preset threshold value.
6. A wet film water supply system, comprising:
a wet film humidifier for adjusting air humidity;
a water tank for supplying water to the wet film humidifier;
the heating unit is connected between the water outlet of the water tank and the water inlet of the wet film humidifier; the heating unit comprises a first heat exchanger, the first heat exchanger is connected with a heat exchange unit, and the first heat exchanger heats water provided by the water tank to the wet film humidifier through heat provided by the heat exchange unit; the heat exchange unit at least comprises a compressor, a throttling device and a second heat exchanger, wherein the first heat exchanger is connected between the compressor and the throttling device so as to enable the compressor, the first heat exchanger, the throttling device and the second heat exchanger to form a heat exchange circulation loop;
a control unit, wherein the wet film humidifier and the heating unit are respectively and electrically connected with the control unit, and the control unit realizes the steps of the wet film water supply and water temperature control method according to any one of claims 1 to 5 when in execution;
the temperature and humidity sensor is used for detecting the air dew point temperature of the second heat exchanger and is connected with the control unit;
the wet film humidifier and the water tank are internally provided with temperature sensors, and the temperature sensors are electrically connected with the control unit.
7. The wet film water supply system of claim 6, wherein the heating unit further comprises an electric heater, the electric heater is connected in parallel with the first heat exchanger, a three-way water valve is connected to a water outlet of the water tank, the three-way water valve is respectively connected to the water tank, the electric heater and the first heat exchanger, and the three-way water valve is electrically connected to the control unit.
8. The wet film water supply system according to claim 7, wherein the heat exchange unit further comprises a third heat exchanger, the third heat exchanger is connected between the first heat exchanger and the throttling device, the compressor, the first heat exchanger, the third heat exchanger, the throttling device and the second heat exchanger are sequentially connected to form a heat exchange circulation loop, and the first heat exchanger is a double-pipe heat exchanger.
9. A wet film water supply temperature control device, characterized in that the wet film water supply temperature control device comprises a processor, a memory and a wet film water supply temperature control program stored on the memory and operable on the processor, wherein the wet film water supply temperature control program when executed by the processor implements the steps of the wet film water supply temperature control method according to any one of claims 1 to 5.
10. An air conditioner comprising the wet film water supply system according to any one of claims 6 to 8 and the wet film water supply water temperature control device according to claim 9.
11. A readable storage medium, wherein the readable storage medium has stored thereon a wet film feed water temperature control program, which when executed by a processor, implements the steps of the wet film feed water temperature control method according to any one of claims 1 to 5.
CN201910144879.XA 2019-02-26 2019-02-26 Wet film water supply system, water temperature control method and device thereof and air conditioner Active CN109855223B (en)

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