CN217540984U - Fresh air handling unit with water side induction intelligent anti-freezing control function - Google Patents
Fresh air handling unit with water side induction intelligent anti-freezing control function Download PDFInfo
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- CN217540984U CN217540984U CN202220793861.XU CN202220793861U CN217540984U CN 217540984 U CN217540984 U CN 217540984U CN 202220793861 U CN202220793861 U CN 202220793861U CN 217540984 U CN217540984 U CN 217540984U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000007710 freezing Methods 0.000 title claims abstract description 10
- 230000006698 induction Effects 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000009423 ventilation Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000002528 anti-freeze Effects 0.000 claims 2
- 108010053481 Antifreeze Proteins Proteins 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000001034 Frostbite Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses a fresh air handling unit with water side induction intelligent anti-freezing control, which comprises a ventilation unit, a heating unit arranged at one side of the ventilation unit and communicated with the ventilation unit, and an intelligent control unit in communication connection with the ventilation unit and the heating unit; the ventilation unit comprises a fresh air bin (1) a fan (2) arranged in the fresh air bin (1) and an air valve (5) communicated with the fresh air bin (1); the heating unit comprises a water return pipe (4) communicated with the wind bin (1); the intelligent control unit comprises a flow sensor (71) and a temperature sensor (72) which are arranged in the water return pipe (4), and an intelligent distinguishing module (73) which is in communication connection with the flow sensor (71) and the temperature sensor (72). The utility model discloses the rivers of guarantee heating coil and wet return continue to circulate, avoid the pipe coil to freeze because of water freezes and splits, satisfy cold area indoor new trend demand in winter simultaneously.
Description
Technical Field
The utility model belongs to the technical field of indoor air conditioning, more specifically relates to a fresh air handling unit with frostproofing control of water side response intelligence.
Background
The fresh air handling unit is an air conditioning device for providing fresh air indoors. Along with the popularization and application of the fresh air handling unit, the problem that the fresh air handling unit is easy to damage when running in cold regions is increasingly highlighted. Because the temperature is too low in winter in cold or severe cold areas, when the outdoor temperature is reduced to be below 0 ℃, water of an air heater in the fresh air unit can be frozen, the normal operation is influenced if the temperature is low, and a heating coil in the air heater is frozen and cracked if the temperature is high, so that the unit is damaged and cannot be used.
In order to solve the problems, the common design is that an electric air volume regulating valve is arranged on the fresh air inlet side and is interlocked with a fan to be opened and closed, and when the outdoor temperature is reduced to 0 ℃, the fan and the electric air valve are automatically closed to stop fresh air inlet. The control mode is simple but inaccurate, the time that the temperature is lower than 0 ℃ in winter in cold or severe cold areas is long, and the fresh air unit is in a closed state for a long time, so that the fresh air demand of indoor personnel can not be met. Patent CN 202747541U discloses fresh air handling unit freeze-proof device, including air intake, preliminary filtration, heating coil. The temperature sensor of accessible air outlet detects low temperature, and the local control cabinet sends audible and visual alarm and with signal transmission to programme-controlled room, closes electric control blast gate and fan, through the inspection, the manual reset after solving the problem. The scheme solves the problem that the fresh air handling unit is in a closed state for a long time, but manual intervention is needed subsequently, and automatic control is not realized. Patent CN 102072537B discloses a winter frost-proof furred ceiling new trend unit system and construction method, through setting up the by-pass mouth and installing manual airtight valve, adjust the degree of opening of electronic airtight valve according to indoor, outer difference in temperature condition, when inside and outside difference in temperature is big, close electronic airtight valve, open manual airtight valve, make indoor air under indoor, outside hot-pressing and the common effect of wind pressure, through manual airtight valve flows to new trend unit system, prevents that temperature is low excessively among the interior copper pipe of new trend unit system, reaches the mesh of preventing frostbite, but its suitable installation form is single, does not consider from the angle of unit operation.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a new fan group with frostproofing control of water side response intelligence, intelligent control unit can be according to the velocity of flow of heating unit's rivers and the temperature condition, and the blast gate on-off state and the fan running state of control ventilation unit, intelligent control unit, through the velocity of flow and the temperature of monitoring wet return, the blast gate and the fan operation of linkage regulation and control new fan realize the control that becomes more meticulous of new fan group, prevent that heating coil from being split by the frost, ensure indoor personnel's the new amount of wind. The embodiment of the utility model provides a can be through the monitoring of intelligent control unit to heating element, when the velocity of water flow reaches limit value (0.15 m/s) or the temperature reaches limit value (25 ℃), through the control module of intelligent control unit, the aperture and the fan rotational speed of coordinated control blast gate, the normal water speed and the temperature of guarantee heating coil pipe realize the intelligent anti-freezing control of new trend unit.
In order to achieve the above object, an embodiment of the present invention provides a fresh air handling unit with water side induction intelligent anti-freezing control, including a ventilation unit, a heating unit disposed on one side of the ventilation unit and communicated therewith, and an intelligent control unit in communication connection with the ventilation unit and the heating unit; wherein,
the ventilation unit comprises a fresh air bin, a fan which is arranged in the fresh air bin and used for adjusting the air speed of fresh air supply, and an air valve which is communicated with the fresh air bin and used for adjusting the air inlet amount of fresh air;
the heating unit comprises a water return pipe communicated with the fresh air bin;
the intelligent control unit comprises a flow sensor, a temperature sensor and an intelligent judgment module, wherein the flow sensor and the temperature sensor are arranged in the water return pipe, the intelligent judgment module is in communication connection with the flow sensor and the temperature sensor, and the flow sensor, the temperature sensor, the intelligent judgment module, the fan and the air valve are in communication connection through control signal lines.
Furthermore, the intelligent control unit comprises an air valve opening control module which is in communication connection with the intelligent judgment module and the air valve.
Furthermore, the intelligent control unit comprises a fan rotating speed control module which is in communication connection with the intelligent judging module and the fan.
Further, the heating unit comprises a heating coil arranged in the fresh air bin.
Furthermore, the ventilation unit includes with fresh air storehouse and blast gate intercommunication's fresh air inlet pipe.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
(1) The utility model discloses a fresh air handling unit with frostproofing control of water side response intelligence, intelligent control unit can be according to the velocity of flow and the temperature of monitoring, the rotational speed of intelligent regulation and control fan and the aperture of blast gate. When the velocity of water flow or temperature unsatisfied requirement, through blast gate aperture control module and fan rotational speed control module signals realize the non-polar control, through intelligent linkage regulation and control fan and blast gate, the rivers of guarantee heating coil and wet return are continuous to be circulated, avoid the pipe coil to freeze and split because of water freezes, satisfy cold area winter indoor new trend demand simultaneously.
(2) The utility model discloses a fresh air handling unit with frostproofing control of water side response intelligence, intelligent control unit passes through the flow inductor with temperature sensor, it is right the wet return carries out the velocity of water flow and monitors with the temperature, particularly, intelligent control unit's monitoring data passes through intelligence judgement module judges, when the velocity of water flow does not reach limit value (0.15 ms) or the temperature does not reach limit value (25 ℃), to blast gate aperture control module with fan rotational speed control module signals, control the aperture of blast gate with the rotational speed of fan. The intelligent judgment module is used for intelligently judging, so that the problem that the indoor fresh air demand cannot be met due to the fact that a system is directly closed when the outdoor temperature is lower than 0 ℃ in the conventional design is solved, and the demand of winter in severe cold areas on indoor fresh air can be met to the maximum extent.
(3) The utility model discloses a fresh air handling unit with frostproofing control of water side response intelligence, the intelligent control unit passes through the control signal line, based on intelligence differentiate the module with blast gate aperture control module and fan rotational speed control module's signal is right the fan with the blast gate carries out intelligent control, need not manual operation, realizes automated control.
(4) The fresh air handling unit with water side induction intelligent anti-freezing control of the utility model can be compatible with various working conditions, and when fresh air is directly delivered in transitional seasons and cooling is carried out in summer, only need cut off intelligent control system, let the system be in normally open state can, simultaneously for furred ceiling fresh air handling unit, the utility model discloses still have simple structure, simple to operate's characteristics.
Drawings
Fig. 1 is a schematic structural view of a fresh air handling unit with water side induction intelligent anti-freezing control according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides an intelligence anti-freezing control circuit schematic diagram.
In all the figures, the same reference numerals denote the same features, in particular: 1-fresh air bin, 2-fan, 3-heating coil, 4-water return pipe, 5-air valve, 6-fresh air inlet pipe, 7-intelligent control unit, 71-flow sensor, 72-temperature sensor, 73-intelligent discrimination module, 74-air valve opening control module, 75-fan rotating speed control module and 76-control signal line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, the embodiment of the utility model provides a fresh air handling unit with frostproofing control of water side response intelligence, including ventilation unit, locate this ventilation unit one side and rather than the heating element of intercommunication, and with ventilation unit and heating element communication connection's intelligent control unit. The intelligent control unit is right the wet return carries out velocity of flow and temperature monitoring, and its ventilation flow and temperature are adjusted through electrodeless control to fan and blast gate of intelligence coordinated control ventilation unit, and the rivers of guarantee heating coil and wet return are continuous to circulate, avoid the pipe coil to freeze and split because of water freezes, satisfy cold area winter indoor new trend demand simultaneously. Particularly, the intelligent control unit through the velocity of flow and the temperature of monitoring wet return, when the velocity of flow or the arbitrary condition of temperature unsatisfied requirement, the blast gate aperture and the fan operation of intelligent linkage regulation and control ventilation unit, the rivers of guarantee heating coil and wet return continue to circulate, realize the new fan unit control of refining, prevent that heating coil from being split by the frost, guarantee indoor personnel's fresh air volume.
As shown in fig. 1, the ventilation unit includes a fresh air bin 1, a fan 2 installed inside the fresh air bin 1, a fresh air inlet pipe 6 communicated with the fresh air bin 1, and an air valve 5 installed at an inlet of the fresh air inlet pipe 6 for adjusting an air inlet amount. Fresh air enters the fresh air cabin 1 through the fresh air inlet pipe 6 according to the opening of the air valve 5, is accelerated through the fan 2, and is heated through the heating unit and then is sent into a room.
As shown in fig. 1, the bottom of the fresh air bin 1 is connected with a heating unit, and the heating unit comprises a heating coil 3 installed at the bottom end inside the fresh air bin 1 and a water return pipe 4 communicated with the heating coil 3. When the fresh air handling unit normally operates, the heating unit heats water in the water return pipe 4, and after the heated hot water exchanges heat with air of the ventilation unit, fresh air with proper temperature is formed and sent into a room, so that fresh air with proper temperature is provided for the room.
As shown in fig. 2, the intelligent control unit 7 includes a flow sensor 71 and a temperature sensor 72 mounted on the water return pipe 4, a control signal line 76 connected to the flow sensor 71 and the temperature sensor 72, respectively, an intelligent determination module 73 connected to the control signal line 76, and an air valve opening degree control module 74 and a fan rotation speed control module 75 connected to the intelligent determination module 73, respectively. The flow sensor 71 and the temperature sensor 72 respectively sense flow speed data of the water return pipe 4, the temperature data are monitored in real time, and the intelligent control unit judges whether the opening of the air valve 5 and the rotating speed of the fan 2 need to be adjusted or not through the intelligent judging module according to the monitored flow speed data and the monitored temperature data. The utility model discloses in preferred embodiment when the velocity of water flow does not reach limit value (0.15 m/s) or the temperature does not reach limit value (25 ℃), to air valve aperture control module 74 with fan rotational speed control module 75 sends control signal, through air valve aperture control module 74 control the aperture of air valve 5 simultaneously through fan rotational speed control module 75 control the rotational speed of fan 2 reduces new trend intake to and the air supply wind speed of fan, realize the electrodeless regulation of new trend intake and air supply wind speed, under the extreme condition, can close air valve 5, and stop fan 2, thereby make the temperature rise in return pipe 4, avoid the return pipe to freeze because of the low temperature. The intelligent judgment module is used for intelligently judging, so that the problem that the indoor fresh air demand cannot be met due to the fact that a system is directly closed at the outdoor temperature lower than 0 ℃ in a conventional design is solved, the demand of winter in severe cold areas on indoor fresh air can be met to the maximum extent, the normal working environment is better protected for processing the fresh air unit, the 'insurance' effect of the fresh air unit is played, and the intelligent control of the fresh air unit is realized. It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (5)
1. A fresh air handling unit with water side induction intelligent anti-freezing control is characterized by comprising a ventilation unit, a heating unit arranged on one side of the ventilation unit and communicated with the ventilation unit, and an intelligent control unit in communication connection with the ventilation unit and the heating unit; wherein,
the ventilation unit comprises a fresh air bin (1), a fan (2) which is arranged in the fresh air bin (1) and used for adjusting the air supply speed of fresh air, and an air valve (5) which is communicated with the fresh air bin (1) and used for adjusting the air supply rate of the fresh air;
the heating unit comprises a water return pipe (4) communicated with the fresh air bin (1);
the intelligent control unit comprises a flow sensor (71) and a temperature sensor (72) which are arranged in the water return pipe (4), and an intelligent judgment module (73) which is in communication connection with the flow sensor (71) and the temperature sensor (72), wherein the flow sensor (71), the temperature sensor (72), the intelligent judgment module (73), the fan (2) and the air valve (5) are in communication connection through a control signal line (76).
2. The fresh air handling unit with water side sensing intelligent anti-freeze control according to claim 1, wherein the intelligent control unit comprises an air valve opening control module (74) in communication connection with the intelligent discrimination module (73) and an air valve (5).
3. The fresh air handling unit with water side sensing intelligent anti-freezing control as claimed in claim 2, wherein the intelligent control unit comprises a fan speed control module (75) in communication connection with the intelligent discrimination module (73) and the fan (2).
4. The fresh air handling unit with intelligent water-side sensing antifreeze control function according to any of claims 1 to 3, wherein the heating unit comprises a heating coil (3) arranged in the fresh air compartment (1).
5. Fresh air handling unit with water side induction intelligent freeze control according to any of claims 1 to 3, wherein the ventilation unit comprises a fresh air inlet duct (6) communicating with the fresh air silo (1) and the air valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220793861.XU CN217540984U (en) | 2022-04-07 | 2022-04-07 | Fresh air handling unit with water side induction intelligent anti-freezing control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220793861.XU CN217540984U (en) | 2022-04-07 | 2022-04-07 | Fresh air handling unit with water side induction intelligent anti-freezing control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217540984U true CN217540984U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220793861.XU Active CN217540984U (en) | 2022-04-07 | 2022-04-07 | Fresh air handling unit with water side induction intelligent anti-freezing control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217540984U (en) |
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2022
- 2022-04-07 CN CN202220793861.XU patent/CN217540984U/en active Active
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