CN217876199U - Air handling unit with anti-freezing protection structure - Google Patents
Air handling unit with anti-freezing protection structure Download PDFInfo
- Publication number
- CN217876199U CN217876199U CN202222009788.5U CN202222009788U CN217876199U CN 217876199 U CN217876199 U CN 217876199U CN 202222009788 U CN202222009788 U CN 202222009788U CN 217876199 U CN217876199 U CN 217876199U
- Authority
- CN
- China
- Prior art keywords
- section
- air
- heating coil
- protection structure
- handling unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to an air handling unit with anti-freezing protection structure, including the new trend unit, set up air inlet section and air-out section on the new trend unit, the export of air inlet section is equipped with one-level heating coil and second grade heating coil, the entry of air-out section sets up the fan section, still include anti-freezing protection structure and control division, anti-freezing protection structure includes air intake section, the section of mixing the wind and bypass pipeline, air intake section sets up in front of the entry of fan section, the section of mixing the wind sets up between air inlet section and one-level heating coil, bypass pipeline intercommunication air intake section and the section of mixing the wind, and bypass pipeline allows the one-way flow direction air mixing section of fluid self air intake section; the control part controls the working states of the fresh air handling unit and the anti-freezing protection structure according to the inlet temperature of the air inlet section and the temperature between the primary heating coil and the secondary heating coil. The utility model discloses use the by-pass line to mix outdoor new trend in order to realize the function of preventing frostbite, on the mode basis that prevents frostbite of tradition, increased the protection architecture that prevents frostbite, make the operating stability of unit higher.
Description
Technical Field
The utility model relates to an air treatment equipment especially relates to an air treatment unit with protection architecture prevents frostbite.
Background
When the air treatment unit is applied to a cold region, hot water is generally adopted as a heating medium, outdoor fresh air is heated by the heating coil arranged inside the unit and then is sent into the room to keep the indoor temperature to meet the design requirement, and therefore, under the outdoor low-temperature environment, if anti-freezing measures are not in place, the situation of frost cracking of the coil is easy to occur.
For the above problems, the flow is controlled by feeding back the temperature of the air flow of the coil pipe to the opening of an electromagnetic valve arranged in the heating pipeline, so as to adjust the speed of the water flow, thereby achieving the anti-freezing effect; from the practical application condition of engineering, the method cannot completely solve the problem of coil pipe anti-freezing.
The anti-freezing mode of the existing fresh air handling unit equipment mainly comprises two types, one type is that the temperature of the air flow of the coil pipe is monitored and fed back to the opening degree of an electromagnetic valve arranged on a heating pipeline to control the flow, so that the method for adjusting the water flow speed plays an anti-freezing role; and secondly, the antifreezing problem is solved by adding an antifreezing solution.
Therefore, the inventor provides the air handling unit with the anti-freezing protection structure by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air handling unit with protection architecture prevents frostbite uses the by-pass line to mix in order to realize preventing frostbite the function outdoor new trend, the utility model discloses on the mode basis is prevented frostbite in the tradition, the protection architecture that prevents frostbite has been increased, makes the operating stability of unit higher.
The utility model aims at realizing the air handling unit with the anti-freezing protection structure, which comprises a fresh air handling unit, wherein an air inlet section and an air outlet section are arranged on the fresh air handling unit, an outlet of the air inlet section is provided with a first-level heating coil and a second-level heating coil, an inlet of the air outlet section is provided with a fan section, and the air handling unit further comprises the anti-freezing protection structure and a control part, the anti-freezing protection structure comprises an air taking section, an air mixing section and a bypass pipeline, the air taking section is arranged in front of the inlet of the fan section, the air mixing section is arranged between the air inlet section and the first-level heating coil, the bypass pipeline is communicated with the air taking section and the air mixing section, and the bypass pipeline allows fluid to flow from the air taking section to the air mixing section in one way; the control part controls the working state of the fresh air handling unit and the anti-freezing protection structure according to the inlet temperature of the air inlet section and the temperature between the primary heating coil and the secondary heating coil.
In a preferred embodiment of the present invention, the anti-freezing protection structure further comprises an electrical heating section, the electrical heating section is disposed between the air mixing section and the one-level heating coil, and the electrical heating section is electrically connected to the control portion.
The utility model discloses an in a preferred embodiment, set up pipeline fan on the bypass pipeline, pipeline fan is used for certainly with the fluid get the extraction of wind section and carry extremely mix the wind section, pipeline fan with the control part electricity is connected.
The utility model discloses an in a preferred embodiment, the air inlet section sets up first temperature-sensing ware, mix the wind section and set up the second temperature-sensing ware, one-level heating coil with set up the third temperature-sensing ware between the second grade heating coil, first temperature-sensing ware the second temperature-sensing ware with the third temperature-sensing ware all with control portion signal connection.
In a preferred embodiment of the present invention, the one-level heating coil is a hot water heating coil, and the opening degree of the one-level heating coil is adjustable.
The utility model discloses a in a preferred embodiment, flow through when the air current temperature of one-level heating coil was less than 5 ℃, the control part starts the electrical heating section heating, one-level heating coil is maximum aperture.
In a preferred embodiment of the present invention, the air intake section and the air mixing section are provided with an initial filtering section therebetween.
In a preferred embodiment of the present invention, a cooling surface cooling section is provided between the second-stage heating coil and the air intake section.
From above, the utility model discloses an air treatment unit with protection architecture prevents frostbite has following beneficial effect:
in the air handling unit with the anti-freezing protection structure, heated air flow can be conveyed to the front of the first-level heating coil pipe through the bypass pipeline, and the heated air flow preheats outdoor fresh air so as to achieve the aim of preventing the first-level heating coil pipe from freezing; when the temperature of the outdoor fresh air preheated by the heated air flow is still too low, the electric heating section is automatically started to heat the air flow, so that double protection of preventing the primary heating coil from freezing is achieved;
the utility model discloses on the frostproofing mode basis of tradition, increased the protection architecture that prevents frostbite, make the operating stability of unit higher.
Drawings
The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention. Wherein:
FIG. 1: do the utility model discloses an internal structure schematic diagram of air treatment unit with protection architecture prevents frostbite.
FIG. 2: do the utility model discloses an outside schematic diagram of air treatment unit with protection architecture prevents frostbite.
In the figure:
1. an air inlet section; 2. a primary filtering section; 3. a wind mixing section; 4. an electrical heating section; 5. a primary heating coil; 6. a secondary heating coil; 7. cooling the surface cooling section; 8. taking an air section; 9. a fan section; 10. an air outlet section; 11. a bypass conduit; 12. a pipeline fan; 13. a refrigeration outdoor unit.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
The specific embodiments of the present invention described herein are for the purpose of explanation only and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the utility model provides an air handling unit with anti-freezing protection structure, including the new fan unit, set up air inlet section 1 and air-out section 10 on the new fan unit, the export of air inlet section 1 is equipped with one-level heating coil 5 and second grade heating coil 6, the entry of air-out section 10 sets up fan section 9, the air handling unit with anti-freezing protection structure still includes anti-freezing protection structure and control part, anti-freezing protection structure includes air intake section 8, air mixing section 3 and bypass pipeline 11, air intake section 8 sets up before the entry of fan section 9, air mixing section 3 sets up between air inlet section 1 and one-level heating coil 5, bypass pipeline 11 communicates air intake section 8 and air mixing section 3, and bypass pipeline 11 allows fluid to flow to air mixing section 3 from air intake section 8 one-way; the control part automatically controls the working states of the fresh air handling unit and the anti-freezing protection structure according to the inlet temperature of the air inlet section 1 and the temperature between the primary heating coil 5 and the secondary heating coil 6.
When the outdoor temperature is too low, part of the heated fresh air (heated by the first-stage heating coil 5 and the second-stage heating coil 6) is mixed with the outdoor fresh air entering the air inlet section 1 through the bypass pipeline 11 and then is heated by the first-stage heating coil 5, so that the temperature of the airflow passing through the first-stage heating coil 5 is kept at a certain temperature, and the risk of freezing the water flow in the coil is reduced. The outdoor fresh air is preheated by the heated airflow so as to achieve the purpose of preventing the primary heating coil from freezing.
In the air handling unit with the anti-freezing protection structure, the bypass pipeline of the air handling unit is used for mixing outdoor fresh air to realize the anti-freezing function; the utility model discloses on the frostproofing mode basis of tradition, increased the protection architecture that prevents frostbite, make the operating stability of unit higher.
Further, as shown in fig. 1, the anti-freezing protection structure further includes an electrical heating section 4, the electrical heating section 4 is disposed between the air mixing section 3 and the primary heating coil 5, and the electrical heating section is electrically connected to the control portion. When the temperature of the airflow of the air intake section and the outdoor fresh air entering the air intake section 1 are still too low, the electric heating section 4 is automatically started to heat the airflow, and double protection for preventing the primary heating coil 5 from freezing is achieved.
Further, as shown in fig. 1, a pipeline fan 12 is disposed on the bypass pipeline 11, the pipeline fan 12 is used for pumping and conveying the fluid from the air intake section 8 to the air mixing section 3, and the pipeline fan 12 is electrically connected to the control part.
Further, the air inlet section 1 is provided with a first temperature sensor to measure the temperature of outdoor fresh air entering the air inlet section 1 in real time; the air mixing section 3 is provided with a second temperature sensor so as to measure the temperature of the heated fresh air of the air inlet section and the temperature of the outdoor fresh air entering the air inlet section 1 after mixing in real time; a third temperature sensor is arranged between the first-stage heating coil and the second-stage heating coil so as to measure the temperature of airflow between the two stages of heating coils in real time; the first temperature sensor, the second temperature sensor and the third temperature sensor are all in signal connection with the control part.
Further, the primary heating coil 5 is a hot water heating coil, and the opening degree of the primary heating coil 5 is adjustable.
Further, when the temperature of the airflow flowing through the first-stage heating coil is lower than 5 ℃, the control part starts the electric heating section to heat, and the first-stage heating coil is in the maximum opening degree (in a fully open state) so as to ensure that the water flow in the coil is in the maximum flow rate.
Further, as shown in fig. 1, a primary filter section 2 is arranged between the air inlet section 1 and the air mixing section 3.
Further, as shown in fig. 1, a cooling surface cooling section 7 is arranged between the secondary heating coil 6 and the air intake section 8.
Further, as shown in fig. 2, a refrigerating outdoor unit 13 is provided outside the fresh air handling unit.
From above, the utility model discloses an air treatment unit with protection architecture prevents frostbite has following beneficial effect:
in the air handling unit with the anti-freezing protection structure, heated air flow can be conveyed to the front of the first-level heating coil pipe through the bypass pipeline, and the heated air flow preheats outdoor fresh air so as to achieve the aim of preventing the first-level heating coil pipe from freezing; when the temperature of the outdoor fresh air preheated by the heated air flow is still too low, the electric heating section is automatically started to heat the air flow, so that double protection of preventing the primary heating coil from freezing is achieved;
the utility model discloses on the frostproofing mode basis of tradition, increased the protection architecture that prevents frostbite, make the operating stability of unit higher.
The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (8)
1. An air handling unit with an anti-freezing protection structure comprises a fresh air handling unit, wherein an air inlet section and an air outlet section are arranged on the fresh air handling unit, a primary heating coil and a secondary heating coil are arranged at an outlet of the air inlet section, and a fan section is arranged at an inlet of the air outlet section; the control part controls the fresh air handling unit and the working state of the anti-freezing protection structure according to the inlet temperature of the air inlet section and the temperature between the primary heating coil and the secondary heating coil.
2. The air handling unit with the anti-freeze protection structure of claim 1, further comprising an electrical heating section disposed between the air mixing section and the primary heating coil, the electrical heating section being electrically connected to the control portion.
3. The air handling unit with the anti-freezing protection structure according to claim 2, wherein a pipeline fan is disposed on the bypass pipeline, the pipeline fan is used for pumping and conveying fluid from the air intake section to the air mixing section, and the pipeline fan is electrically connected to the control portion.
4. The air handling unit with the anti-freezing protection structure according to claim 3, wherein the air intake section is provided with a first temperature sensor, the air mixing section is provided with a second temperature sensor, a third temperature sensor is arranged between the primary heating coil and the secondary heating coil, and the first temperature sensor, the second temperature sensor and the third temperature sensor are all in signal connection with the control part.
5. The air handling unit with an antifreeze protection structure as set forth in claim 3, wherein said primary heating coil is a hot water heating coil, and said primary heating coil is adjustable in opening degree.
6. The air handling unit with the anti-freezing protection structure as claimed in claim 3, wherein the control portion activates the electric heating section to heat when the temperature of the air flow passing through the primary heating coil is lower than 5 ℃, and the primary heating coil has the maximum opening.
7. The air handling unit with the anti-freezing protection structure as claimed in claim 3, wherein a primary filtering section is arranged between the air intake section and the air mixing section.
8. The air handling unit with the anti-freeze protection structure of claim 3, wherein a cooling surface cooling section is arranged between the secondary heating coil and the air intake section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222009788.5U CN217876199U (en) | 2022-08-01 | 2022-08-01 | Air handling unit with anti-freezing protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222009788.5U CN217876199U (en) | 2022-08-01 | 2022-08-01 | Air handling unit with anti-freezing protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217876199U true CN217876199U (en) | 2022-11-22 |
Family
ID=84056314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222009788.5U Active CN217876199U (en) | 2022-08-01 | 2022-08-01 | Air handling unit with anti-freezing protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217876199U (en) |
-
2022
- 2022-08-01 CN CN202222009788.5U patent/CN217876199U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103134232B (en) | Air-source water heater with cooling, heating and clothes drying functions | |
| CN203907821U (en) | Central air conditioner all-air system for low-temperature antifreezing operation in cold region | |
| CN108954626A (en) | A kind of building cooling supply heating system and its control method | |
| CN205641309U (en) | Supply system based on solar energy air source heat pump trigeminy | |
| CN201513995U (en) | Refrigerating system capable of utilizing ground temperature to provide cooling for buildings through floor warming system | |
| CN203489365U (en) | Floor heating type multiple-online air-conditioning system | |
| CN204739788U (en) | Heat pump system | |
| CN203203292U (en) | Cold-warm clothes-drying air-energy water heater | |
| CN217876199U (en) | Air handling unit with anti-freezing protection structure | |
| CN212481463U (en) | Heating and constant temperature bathroom water system | |
| CN210569014U (en) | Anti-freezing fresh air handling unit capable of running safely in winter | |
| CN207487058U (en) | The defroster of air conditioner fresh air unit | |
| CN206269282U (en) | A kind of multi-connected machine water source heat pump door type central air-conditioning system | |
| CN214536884U (en) | Solar energy adds living beings stove | |
| CN204460538U (en) | A kind of intelligent cold-warm water air-conditioning | |
| CN205156207U (en) | Novel energy -conserving air conditioner of low ebb electricity | |
| CN203964446U (en) | Hot water generator | |
| CN107238236B (en) | Air-supplying enthalpy-increasing air conditioning system and control method thereof | |
| CN201407767Y (en) | Household energy-saving central air conditioner | |
| CN101832604B (en) | Central air conditioning device and running control method thereof | |
| CN209415695U (en) | A kind of ice storage energy-saving control system | |
| CN205372878U (en) | Energy -conserving concurrent heating device of ground -source heat pump | |
| CN217928950U (en) | Environment control system suitable for near-zero energy consumption building | |
| CN204555407U (en) | Energy-saving machine room air-conditioning | |
| CN218645680U (en) | Low-temperature automatic defrosting air-conditioning water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |