CN216281859U - Anti-freezing air treatment system - Google Patents
Anti-freezing air treatment system Download PDFInfo
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- CN216281859U CN216281859U CN202122512623.5U CN202122512623U CN216281859U CN 216281859 U CN216281859 U CN 216281859U CN 202122512623 U CN202122512623 U CN 202122512623U CN 216281859 U CN216281859 U CN 216281859U
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Abstract
The utility model discloses an anti-freezing air treatment system which comprises a fresh air mixing section, a primary effect filtering rear section and a surface cooling section which are sequentially communicated according to the sequence of fresh air, wherein the primary effect filtering rear section is communicated with a preheating and recycling function section, and the preheating and recycling function section is communicated with the fresh air mixing section. The system is provided with a preheating and recycling functional section, high-temperature steam in the preheating section is fully utilized through the preheating and recycling function, secondary fresh air is mixed with primary fresh air, the temperature of a target gas supply chamber is effectively controlled, and the problem that the preheating section is frozen is thoroughly solved.
Description
Technical Field
The utility model relates to the field of air conditioning, in particular to an anti-freezing air treatment system.
Background
The purifying air-conditioning system of the clean factory building in the pharmaceutical industry usually adopts a centralized air-conditioning system of all air, and an air processing unit is used for intensively processing the temperature, the humidity and the prefiltering of the air. According to the requirements of GMP, air in a plurality of production places can not be recycled, the fresh air ratio of the air conditioning system is greatly changed, and some systems are even fresh air conditioning systems. For example, in a certain raw material drug project in Xinjiang, combustible steam is easily volatilized from a class A production area, and a gas mixture with explosion danger is formed, so that circulating air cannot be adopted to serve a purification air-conditioning system in the area. As shown in fig. 1.
The air heat treatment process in winter comprises the steps of taking fresh air from the outdoor, preheating the fresh air after filtering the fresh air by a primary filter, preheating the air to 5 ℃, then heating the air to 25 ℃ for the second time, humidifying the air to an air supply state point, and then sending the air into the indoor.
At the anterior segment of air conditioning unit, can set up new trend preheating section usually to each function section in the protection back, steam or idle call hot water can be chooseed for use to the heat source. In severe cold and cold areas in northern China, the calculation parameters of the outdoor air conditioner in winter are lower than zero, and the heater of the air conditioning unit of the centralized air conditioning system is frequently frozen and cracked, mainly because the fluid in the heating coil is not uniform, the section air flow rate of the heater is not uniform, and the temperature difference exists between the upper part and the lower part of the windward side, so that the volume expansion is caused when the fluid in the heater is frozen, thereby not only increasing the maintenance amount of equipment and the operation management cost of users, but also influencing the normal operation of the fresh air unit, influencing the product quality and causing great loss.
Disclosure of Invention
Aiming at the problems, the utility model discloses an anti-freezing air treatment system, wherein a preheating and recycling function section is arranged in the system, high-temperature steam in the preheating section is fully utilized through the preheating and recycling function, secondary fresh air and primary fresh air are mixed, the temperature of a target gas supply chamber is effectively controlled, and the problem that the preheating section is frozen is thoroughly solved.
The utility model provides an anti-freezing type air treatment system, includes the fresh air mixing section, just imitates the filter segment, just imitates the filter back end and the cold section of table that communicate in proper order according to the new trend, just imitate the filter back end intercommunication and have the function section of recirculation of preheating, preheat the function section of recirculation and communicate with the fresh air mixing section.
Preferably, the preheating and recycling functional section comprises a circulating fan section, the circulating fan section is communicated with a preheating section, and the preheating section is communicated with the fresh air mixing section.
Preferably, a preheating rear section is arranged between the preheating section and the fresh air mixing section.
Preferably, an on-off valve is arranged between the preheating rear section and the fresh air mixing section.
Preferably, a steam heat exchanger is arranged in the preheating section, and a circulating fan for guiding the gas of the primary filtering rear section to the preheating section is arranged in the circulating fan section.
Preferably, the circulating fan is controlled in an interlocking manner with the on-off valve.
Preferably, a temperature sensor is arranged in the primary filtering rear section.
The utility model is provided with a preheating and recycling functional section, when the outdoor fresh air is lower than 5 ℃, the electric on-off valve, the circulating fan and the preheating section are opened in a linkage manner, and the preheated air is mixed with the outdoor fresh air, so that the air temperature of the primary filtering rear section, namely the air inlet temperature of the preheating section is higher than 5 ℃, and the problem of freezing of the preheating section is thoroughly solved. (advantageous effects of the utility model)
1. Set up the on-off valve between preheating back end and the new trend mixing section, summer and transition season, the motorised valve is the shutoff state, under the condition that the function section of recycling does not operate, the design amount of wind passes through new trend primary filter (new trend filter section) (filter area sets up according to design amount of wind + recycling amount of wind), and the resistance reduces, is favorable to energy-conservation.
2. The preheating section makes full use of the high-temperature characteristic of steam to heat the air in the preheating section, and the heating area of the heater is set according to the recirculation air volume, so that the area is reduced compared with the area set according to the design air volume.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of the background art of the present invention;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a block diagram of an embodiment of the present invention;
in the figure, 1 fresh air mixing section, 2 primary filtering section, 3 primary filtering rear section, 4 circulating fan section, 5 preheating section, 6 preheating rear section, 7 surface cooling section, 8 heating section, 9 humidifying section, 10 fan section, 11 flow equalizing section, 12 middle effect section, 13 air outlet section, 14 on-off valve and 15 temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present invention, it should be understood that the term "segment" used in the present invention refers to a functional module, and is a space concept, which belongs to the industry term of the industry of the purification and air conditioning system, and cannot be understood as a concept that is used to measure time and length in the traditional word sense.
As shown in figure 2, the utility model discloses an anti-freezing air treatment system, in the system, a primary filtering rear section 3 is arranged behind a primary filtering section 2 of the original air conditioning treatment system, a circulating fan section 4 communicated with the primary filtering rear section 3 is arranged from the primary filtering rear section 3, a circulating fan is erected between the primary filtering rear section 3 and the circulating fan section 4, a preheating section 5 communicated with the circulating fan section 4 is arranged behind the circulating fan section 4, a heat exchanger is arranged in the preheating section and used for heating the gas in the preheating section, a preheating rear section 6 communicated with the preheating section 5 is arranged behind the preheating section and communicated with the original fan section, as the fan section in the new system is not only provided with a cold air inlet communicated with the outside and an air outlet communicated with the primary filtering section 2, but also provided with a hot air inlet communicated with the preheating rear section, the cold air and the hot air are mixed in the area, so the section becomes a fan mixing section 1, the circulating fan can introduce a part of mixed air in the primary filtering section 3 into the circulating fan section 4, the mixed air is subjected to heat exchange with the heat exchanger and heated into hot air in the preheating section 5, the hot air enters the fresh air mixing section 1 through the on-off valve 14 from the preheating section 6 and is mixed with cold air to form 5-degree mixed fresh air, high-temperature steam in the preheating section is fully utilized, secondary fresh air is mixed with primary fresh air, the temperature of the primary filtering section is effectively controlled, namely the inlet air temperature of the preheating section is higher than 5 ℃, and the problem that the preheating section is frozen is thoroughly solved.
Fig. 3 shows an embodiment of an anti-freeze type combined air handling unit. This project is the full new trend setting of class A production clean area air conditioning system, and the outdoor calculated temperature of air conditioner is: 23.7 ℃ below zero, and the calculated air volume is 15000m 3/h. According to the anti-freezing type unit, the air conditioning function section comprises a fresh air mixing section 1, a primary filtering section 2, a primary filtering rear section 3, a circulating fan section 4, a preheating section 5, a preheating rear section 6, a surface cooling section 7, a heating section 8, a humidifying section 9, a fan section 10, a flow equalizing section, a middle effect section 12 and an air outlet section 13. A temperature sensor 15 is arranged in the rear section 3 of the primary filter, and the circulating fan adopts variable speed regulation according to temperature signals collected by the temperature sensor 14 of the rear section of the primary filter.
The maximum recirculation air volume of the recirculation fan section 4, the preheating section 5 and the preheating rear section 6 in the recirculation process is as follows:
design air volume (5-winter air conditioner outdoor design temperature)/70 =15000 (5- (-23.7))/70 =6150 m3/h
The filtering area of the primary filtering section 2 is selected according to the following formula:
design air volume + maximum recirculation air volume =15000+6150=21150 m3/h
The designed air volume of the recirculation fan section 4 is 6150 m3H, pressure head 400 Pa.
The heating quantity of the preheating section is as follows:
recirculated air volume 1.2 × 1.5)/3600 =6150 × 1.2 × 65/3600=133.25kw
This type of preventing frostbite combination formula air processing system is equipped with the control demand of preheating recirculation function section, and when outdoor new trend is less than 5 degrees centigrade, electronic on-off valve, circulating fan, preheating section chain open, and the air after preheating mixes with outdoor new trend, makes the air temperature of just imitating the filtration back end, and the inlet air temperature of preheating section is greater than 5 degrees centigrade promptly. The rotating speed of the recirculation fan is controlled by the air temperature of the primary filtering rear section, and the opening degree of the steam pipeline valve of the preheating section is controlled by the air temperature of the preheating rear section.
The electric on-off valve at the preheating rear section is in an off state in summer and transition seasons, and under the condition that the recirculation function section does not operate, the designed air quantity passes through the fresh air filtering section (the filtering area is set according to the designed air quantity and the recirculation air quantity), so that the resistance is reduced, and the energy conservation is facilitated.
The surface cooling section 7, the heating section 8, the humidifying section 9, the fan section 10, the flow equalizing section 11, the middle effect section 12 and the air outlet section 13 of the anti-freezing combined air handling unit are designed according to a conventional clean air conditioning unit.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an anti-freezing type air treatment system, its characterized in that includes according to the new trend mix section, just imitate the filter segment, just imitate and filter back end and the cold section of table that the order communicates in proper order, just imitate and filter the back end intercommunication and have preheating recirculation function section, preheating recirculation function section and new trend mix the section intercommunication.
2. The antifreeze air handling system of claim 1, wherein the preheat recirculation function section comprises a circulating fan section, the circulating fan section is in communication with a preheat section, and the preheat section is in communication with a fresh air mixing section.
3. The anti-freeze air handling system of claim 2, wherein a pre-heating back-end is disposed between the pre-heating section and the fresh air mixing section.
4. The anti-freeze air treatment system according to claim 3, wherein an on-off valve is arranged between the preheating section and the fresh air mixing section.
5. The anti-freeze air treatment system according to claim 4, wherein a steam heat exchanger is arranged in the preheating section, and a circulating fan for guiding the gas of the primary filtering rear section to the preheating section is arranged in the circulating fan section.
6. The antifreeze air treatment system of claim 4, wherein the circulation fan is interlocked with the on-off valve.
7. The antifreeze air handling system of claim 1, wherein a temperature sensor is disposed within said primary filter back section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122512623.5U CN216281859U (en) | 2021-10-19 | 2021-10-19 | Anti-freezing air treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122512623.5U CN216281859U (en) | 2021-10-19 | 2021-10-19 | Anti-freezing air treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216281859U true CN216281859U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122512623.5U Active CN216281859U (en) | 2021-10-19 | 2021-10-19 | Anti-freezing air treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216281859U (en) |
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2021
- 2021-10-19 CN CN202122512623.5U patent/CN216281859U/en active Active
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