Fresh air conditioner

Abstract

The fresh air conditioner comprises a pipeline, the pipeline is provided with an air inlet and an air outlet, the air inlet is located outside a workshop, so that air outside the workshop enters through the air inlet, the air outlet is located in the workshop, the air entering the pipeline is conveyed into the workshop through the air outlet, and the pipeline comprises a dehumidification section, a mixing section and a heating section in the air supply direction. A partition part is arranged in the dehumidification section, the dehumidification section is divided into at least two sub-dehumidification sections through the partition part, each sub-dehumidification section is internally provided with a dehumidification assembly capable of independently conducting dehumidification, after dehumidification is completed, the mixed gas is mixed through the mixing section, and then the cooled gas is heated, so that under the condition that the outside humidity is not large, the temperature of the cooled gas is reduced; according to the dehumidification device, only the dehumidification assembly in one sub-dehumidification section can work, consumption of cooling capacity and heat is reduced, and then waste of energy is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fresh air systems, and in particular to a fresh air air conditioner. Background Art

[0002] In some production areas, a constant temperature and humidity environment needs to be maintained. Fresh air air conditioners are generally used to adjust the constant temperature and humidity environment in the production area. That is, when the outside humidity is slightly higher than the workshop demand, the cold coil will cool down and dehumidify all the fresh air. At this time, the fresh air temperature is lower than 12°C, and then the low-temperature fresh air is heated to 17°C by the reheating system to meet the temperature requirements of the workshop. However, when the outside temperature is not much different from the workshop temperature and the outside humidity is not high, the fresh air air conditioner needs to cool down first and then heat up, thus increasing energy loss. Utility Model Content

[0003] The embodiment of the present application provides a fresh air air conditioner, which can solve the problem in the related art that when the outside temperature is not much different from the workshop temperature and the outside humidity is not high, the fresh air air conditioner needs to cool down first and then heat up, thus increasing the energy loss.

[0004] The embodiment of the present application provides a fresh air air conditioner, comprising:

[0005] The pipeline has an air inlet and an air outlet, and along the air supply direction, the pipeline includes:

[0006] A dehumidification section is provided with a baffle portion therein, and the dehumidification section is divided into at least two sub-dehumidification sections, each of the sub-dehumidification sections is connected to the air inlet and the air outlet, and a dehumidification component is provided in the sub-dehumidification section;

[0007] a mixing section for receiving the gas from the sub-dehumidification section; and

[0008] The heating section is used to heat the gas flowing through the mixing section.

[0009] In some embodiments, along the air supply direction, the sub-dehumidification section includes:

[0010] A dehumidification area, wherein the dehumidification assembly is located in the dehumidification area; and

[0011] The buffer area is located between the dehumidification area and the mixing section, and the buffer area is connected to the dehumidification area and the mixing section.

[0012] In some of the embodiments, along the air supply direction, the depth of the buffer area is 30 cm-40 cm.

[0013] In some embodiments, a gap is provided between the dehumidification component and the barrier portion, and the maximum size of the gap does not exceed 10 cm.

[0014] In some embodiments, the barrier portion is in a plate shape and divides the dehumidification section into two sub-dehumidification sections.

[0015] In some of the embodiments, the sub-dehumidification sections are distributed circumferentially around the pipeline axis.

[0016] In some of the embodiments, along the air supply direction, the cross-sectional area of ​​the sub-dehumidification section at each position is the same.

[0017] In some of the embodiments, each of the sub-dehumidification sections has an inlet and an outlet that are relatively arranged, wherein the inlet area of ​​each of the sub-dehumidification sections is the same, and the outlet area of ​​each of the sub-dehumidification sections is the same.

[0018] In some embodiments, along the air supply direction, the fresh air air conditioner further includes:

[0019] An electric preheating module, disposed at the front end of the dehumidification section, for initially heating the gas entering the pipeline through the air inlet;

[0020] A primary filtering module, arranged at the rear end of the electric preheating module, for performing primary filtering on the gas passing through the electric preheating module;

[0021] A heating module, disposed at the rear end of the primary filtering module and at the front end of the dehumidification section, for heating the gas passing through the primary filtering module;

[0022] A humidifying module, disposed between the dehumidifying section and the heating module, for humidifying the gas passing through the heating module;

[0023] a fan module, disposed at the rear end of the heating section, for accelerating the airflow entering the pipeline; and

[0024] The re-filtering module is arranged at the rear end of the fan module and is used for re-filtering the accelerated airflow.

[0025] In some embodiments, the dehumidification component has a medium inlet pipe and a medium outlet pipe, and the medium inlet pipe and the medium outlet pipe both penetrate the side wall of the pipeline and extend into the dehumidification area.

[0026] Based on the fresh air air conditioner of the embodiment of the present application, the dehumidification section is divided into at least two sub-dehumidification sections by a partition part. Each sub-dehumidification section is provided with a dehumidification component that can perform dehumidification independently. After dehumidification is completed, the gas is mixed in the mixing section and then the cooled gas is heated. In this way, when the external humidity is not high, only the dehumidification component in one sub-dehumidification section can be made to work, thereby reducing the consumption of cold and heat, and thus reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic diagram of the structure of the interior of the fresh air air conditioner provided in an embodiment of the present application;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of the structure in the middle.

[0030] Explanation of the reference numerals: 100, pipeline; 100a, air inlet; 100b, air outlet; 10, dehumidification section; 10a, barrier section; 11, sub-dehumidification section; 11a, dehumidification area; 11b, buffer area; 12, dehumidification component; 121, medium inlet pipe; 122, medium outlet pipe; 20, mixing section; 30, heating section; 40, electric heating module; 50, primary filtration module; 60, heating module; 70, humidification module; 80, fan module; 90, re-filtration module. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] In the relevant technology, in order to ensure a constant temperature and humidity environment in the production area, the cold coil cools all the fresh air to below 12°C for dehumidification, and then the low-temperature fresh air is heated to 17°C through the reheating system to meet the temperature requirements of the workshop. This results in a technical problem of energy loss.

[0033] In order to solve the above technical problems, the present application proposes a fresh air air conditioner, which can solve the problem in the related technology that when the outside temperature is not much different from the workshop temperature and the outside humidity is not high, the fresh air air conditioner needs to cool down first and then heat up, thus increasing the problem of energy loss.

[0034] See also Figure 1 The embodiment of the present application provides a fresh air air conditioner, including a duct 100, the duct 100 has an air inlet 100a and an air outlet 100b, the air inlet 100a is located outside the workshop, so that the wind outside the workshop enters through the air inlet 100a, the air outlet 100b is located inside the workshop, and the wind entering the duct 100 is transported to the workshop through the air outlet 100b. Along the air supply direction, the duct 100 includes a dehumidification section 10, a mixing section 20 and a heating section 30.

[0035] A partition portion 10a is provided in the dehumidification section 10, and the dehumidification section 10 is divided into at least two sub-dehumidification sections 11. Each sub-dehumidification section 11 is connected to the air inlet 100a and the air outlet 100b. A dehumidification component 12 is provided in the sub-dehumidification section 11. In this way, the gas entering through the air inlet 100a will enter multiple sub-dehumidification sections 11. The user can select only one or two of the dehumidification components 12 to work according to actual conditions.

[0036] The mixing section 20 is used to receive the gas from the sub-dehumidification section 11. The gas passing through the sub-dehumidification section 11 is mixed here, and then enters the heating section 30 of the next stage, and is heated by the heating section 30, so that the gas after dehumidification and mixing is heated again, thereby meeting the temperature requirements in the workshop.

[0037] In this embodiment, each sub-dehumidification segment 11 is provided with a dehumidification component 12 which can perform dehumidification independently. When the humidity outside the workshop is not high, only the dehumidification components 12 in one or two sub-dehumidification segments 11 can be operated, while the other sub-dehumidification segments 11 do not operate. Since the temperature of the dehumidified gas is generally lower than 12°C, the dehumidified and non-dehumidified gases can be quickly mixed in the mixing segment 20, so that the dehumidified gas is pre-heated and then heated to 17°C through the heating segment 30. After the dehumidified and non-dehumidified gases are mixed, the gas temperature must be greater than 12°C. Therefore, after the gas is heated to 17°C through the heating segment 30, the energy loss can be effectively reduced.

[0038] Of course, it is understandable that if the humidity outside the workshop is too high, the dehumidification components 12 in the multiple dehumidification sub-segments 11 need to operate simultaneously.

[0039] See also Figure 1 and Figure 2 Along the air supply direction, the sub-dehumidification section 11 includes a dehumidification area 11a and a buffer area 11b arranged in sequence, the dehumidification component 12 is located in the dehumidification area 11a, the buffer area 11b is located between the dehumidification area 11a and the mixing section 20, and the buffer area 11b is connected to the dehumidification area 11a and the mixing section 20.

[0040] In accordance with the above, it should be understood that gas dehumidification is mainly related to the saturated vapor pressure and condensation process of water in the air. Therefore, if the gas entering the pipeline 100 needs to be dehumidified, the gas temperature needs to be reduced to below 12°C. By setting the buffer area 11b, when the humidity of the gas outside the workshop is not high, the gas that has not been dehumidified, that is, the gas that has not been cooled, will not interfere with the gas that is being dehumidified. In this way, after being dehumidified in the dehumidification area 11a, the gas discharged through the buffer area 11b is completely dehumidified gas. At this time, mixing it with the gas that has not been cooled and dehumidified will not affect the dehumidification effect of the gas.

[0041] Combination Figure 1-2 , along the air supply direction, the depth M of the buffer area 11b is 30cm-40cm, and M can be 30cm, 34cm, 36cm and 40cm, etc., and no specific numerical value is limited here. If the value of M is too small, the gas that has not been cooled and dehumidified will affect the gas that is being cooled and dehumidified, thereby reducing the dehumidification effect of the gas that needs to be cooled and dehumidified. If the value of M is too large, on the one hand, an excessively large buffer area 11b will increase the total volume and size of the pipeline system, which may increase the manufacturing cost and installation space requirements of the system. Secondly, an excessively large buffer area 11b may cause the flow of air therein to become slow, increasing the residence time of the air in the pipeline, which may increase the energy consumption and operating cost of the system. In addition, an excessively large buffer area 11b may also increase the pressure loss inside the system and reduce the air supply efficiency.

[0042] Please continue reading Figure 2 A gap N is provided between the dehumidification component 12 and the barrier portion 10a, and the maximum size of the gap N does not exceed 10 cm. For example, the size of the gap N can be 4 cm, 6 cm, 8 cm, and 10 cm, etc. In this way, the dehumidification component 12 can be fully in contact with the gas, thereby ensuring the dehumidification efficiency of the dehumidification component 12 on the gas.

[0043] If the gap N is too large, the contact area between the dehumidification component 12 and the incoming gas is reduced, thereby reducing the dehumidification efficiency. In the same dehumidification time, the moisture in the gas may not be effectively adsorbed or condensed, resulting in unsatisfactory dehumidification effect. Due to the reduced dehumidification efficiency, it may take longer or higher power dehumidification component 12 to achieve the desired dehumidification effect, resulting in energy waste.

[0044] See also Figure 1Specifically, the barrier portion 10a is in the shape of a plate and can be fixed in the pipe 100 by screws or welding. It should be understood that attention should be paid to the airtightness of the connection between the barrier portion 10a and the inner wall of the pipe 100 to prevent the gases passing through the two sub-dehumidification sections 11 from interfering with each other and affecting the dehumidification effect. Specifically, a sealing ring or a sealing gasket can be provided at the connection between the barrier portion 10a and the inner wall of the pipe 100 to achieve this.

[0045] The barrier 10a can divide the dehumidification section 10 into a plurality of sub-dehumidification sections 11, such as two, three, and four. In this embodiment, the barrier 10a preferably divides the dehumidification section 10 into two sub-dehumidification sections 11. The design of the two sub-dehumidification sections 11 is relatively simple, and the structure design and installation can be more easily performed. At the same time, the control system is also more concise, reducing the parameters and variables that need to be monitored and managed, and reducing the complexity of the control system.

[0046] In this embodiment, each sub-dehumidification section 11 is circumferentially distributed around the axis of the pipeline 100, so that the gas entering from the air inlet 100a can be evenly dehumidified in the pipeline 100. This design helps to eliminate local differences in dehumidification effect and ensure that the humidity level in various places in the workshop remains consistent.

[0047] In addition, the circumferentially distributed sub-dehumidification sections 11 can fully utilize the internal space of the pipeline 100, reduce the increase in the diameter or length of the pipeline, and thus optimize the space occupancy of the system.

[0048] In some embodiments, the cross-sectional area of ​​the sub-dehumidification section 11 at each position along the air supply direction is the same. Since the cross-sectional area of ​​the sub-dehumidification section 11 along the air supply direction remains unchanged, the airflow entering and passing through the sub-dehumidification section 11 will remain evenly distributed. This even distribution helps to ensure the consistency of the dehumidification effect throughout the sub-dehumidification section.

[0049] Since the cross-sectional area of ​​each position of the sub-dehumidification section 11 is the same, the user does not need to consider the change of the cross-sectional area when predicting key parameters such as airflow velocity and pressure loss, thereby simplifying the design process. In addition, the uniform airflow distribution helps to reduce the noise and vibration caused by airflow changes, effectively improving

[0050] In some embodiments, each sub-dehumidification section 11 has an inlet and an outlet arranged relatively, the inlet is connected to the air inlet 100a of the fresh air air conditioner, and the outlet is connected to the mixing section 20, wherein the inlet area of ​​each sub-dehumidification section 11 is the same, and the outlet area of ​​each sub-dehumidification section 11 is the same. Since the inlet area and the outlet area of ​​each sub-dehumidification section 11 are the same, the airflow entering each sub-dehumidification section 11 will remain uniform. This helps to ensure that each sub-dehumidification section 11 can obtain sufficient airflow, thereby achieving a more uniform dehumidification effect, especially when dehumidifying external air with high humidity, which helps to ensure that each sub-dehumidification section 11 can obtain the same airflow, thereby ensuring the uniformity of the dehumidification effect.

[0051] On the other hand, evenly distributed airflow helps optimize the energy efficiency of the entire system. Under the same dehumidification conditions, each sub-dehumidification segment can achieve similar dehumidification effects, thereby reducing unnecessary energy waste.

[0052] In some embodiments, along the air supply direction, the fresh air air conditioner further includes an electric preheating module 40, a primary filtering module 50, a heating module 60, a humidifying module 70, a fan module 80 and a re-filtering module 90. Along the air supply direction, the electric preheating module 40, the primary filtering module 50, the heating module 60, the humidifying module 70, the dehumidification section 10, the mixing section 20, the heating section 30, the fan module 80 and the re-filtering module 90 are distributed in sequence.

[0053] The electric preheating module 40 performs initial heating on the gas entering the pipeline 100 through the air inlet 100a, and usually includes one or more electric heating elements (such as heating wires, heating plates, etc.). These electric heating elements are encapsulated in high-temperature resistant and insulating materials. When current passes through the electric heating elements, the electric heating elements generate heat and transfer the heat to the passing gas to achieve preheating of the gas. When the outside temperature is below 0°C, the water channel at the rear end can be protected from being affected by the low temperature.

[0054] The primary filtration module 50 can be a primary plate filter, or a filter layer composed of one or more filter materials (such as paper filter, non-woven fabric, activated carbon, etc.), and a frame supporting these filter layers, which is used to perform primary filtration on the gas passing through the electric preheating module 40. When the gas passes through the filter layer or the primary plate filter, large particles of impurities are retained by the filter material, thereby achieving primary filtration of the gas.

[0055] In winter, in order to meet the workshop's humidity requirements, the fresh air temperature needs to be raised to about 50°C, so the gas needs to be heated by the heating module 60. The heating module 60 can have a variety of structures, such as electric heating tubes, PTC ceramic heating elements, heat pumps, etc. They usually include heating elements, heat sinks, and temperature control devices. The heating elements generate heat and transfer the heat to the passing gas through the heat sink to achieve gas heating. The temperature control device is used to monitor and control the temperature of the gas.

[0056] After the temperature of the fresh air is raised to about 50°C, the fresh air is humidified to meet the humidity requirements of the workshop. The humidification module 70 includes a water tank, a humidification net (or humidification membrane), a controller and other parts. The water tank is used to store water, the humidification net or humidification membrane is used to evaporate water into water vapor, and the controller is used to control the humidification process. The water is transported from the water tank to the humidification net or humidification membrane. Under the action of the controller, the humidification net or humidification membrane evaporates the water into water vapor and mixes it with the passing gas to achieve gas humidification. Alternatively, when the humidity of the fresh air outside is lower than the workshop requirement, turn on the humidification module 70 to humidify the fresh air to meet the humidity requirements of the workshop.

[0057] The humidification module 70 may also directly adopt a humidifier purchased from the market, and its working principle will not be described in detail here.

[0058] The fan module 80 includes a fan for accelerating the airflow entering the pipeline 100 so that the external gas quickly enters the workshop. By adjusting the speed of the motor in the fan, the flow rate and speed of the airflow can be controlled to adapt to different working conditions.

[0059] The re-filtration module 90 is similar to the primary filtration module, but usually has finer filter materials to remove tiny particles and pollutants in the gas. When the gas passes through the finer filter layer, the tiny particles and pollutants are retained by the filter materials, thereby achieving re-filtration of the gas.

[0060] It is understandable that the specific structures of the above modules are all purchased from products on the market, and users can also choose other devices with similar functions for replacement, so no further elaboration or limitation will be made here.

[0061] Further, see Figure 1-2 The dehumidification component 12 has a medium inlet pipe 121 and a medium outlet pipe 122. The medium inlet pipe 121 and the medium outlet pipe 122 both penetrate the side wall of the pipeline 100 and extend into the dehumidification area 11a, and the parts of the medium inlet pipe 121 and the medium outlet pipe 122 extending into the dehumidification area 11a are connected.

[0062] The dehumidification component 12 is a dehumidification plate exchanger, which is a device that uses the principle of humidity difference between two gases or liquids with different humidity to perform dehumidification. In this case, a flowing medium with a lower temperature (such as water or ethylene glycol solution, etc.) enters the dehumidification area 11a through the medium inlet pipe 121 and performs indirect heat and moisture exchange with the gas to be dehumidified.

[0063] The specific working principle is as follows: low-temperature medium enters the dehumidification area 11 a through the medium inlet pipe 121 .

[0064] In the dehumidification area 11a, the low-temperature medium and the gas to be dehumidified undergo indirect heat and moisture exchange, thereby reducing the humidity of the gas. After the heat and moisture exchange, the heated low-temperature medium is discharged from the system through the medium outlet pipe 122. At the same time, the humidity of the gas to be dehumidified is reduced after being processed in the dehumidification area 11a, and then it flows to the mixing section 20 of the next stage, and finally enters the heating section 30. A heating module is arranged in the heating section 30. It should be understood that the heating module is the same as the heating module 60, and can also be purchased through products sold in the market, so no further explanation is given here.

[0065] There are humidity sensors and temperature sensors in the pipeline. The humidity sensor is used to assist the dehumidification of the dehumidification component 12. The load of the heating module is adjusted according to the detected temperature to accurately control the temperature of the supply air.

[0066] The signal transmission and control mentioned above are all existing technologies, and their working principles are not described in detail in this implementation.

[0067] In this embodiment, low-temperature medium is used for dehumidification, which has high efficiency and low energy consumption. The indirect heat and moisture exchange process avoids direct contact with water, reduces the workload of maintenance and cleaning, and can be applied to the fresh air system.

[0068] In addition, since the medium inlet pipe 121 and the medium outlet pipe 122 both penetrate the side wall of the pipeline 100 , they will not occupy too much space in the pipeline 100 , thereby reducing the manufacturing cost.

[0069] It should be understood that, in the present embodiment, the electric preheating module 40, the primary filtration module 50, the heating module 60, the humidification module 70, the dehumidification section 10, the mixing section 20, the heating section 30, the fan module 80 and the re-filtration module 90 may work simultaneously, or only partially participate in the work. For example, when the outside temperature is not low, the electric preheating module 40 may not work; or, when the outside humidity is high, the humidification module 70 may not work, and the specific setting depends on the actual situation.

[0070] In addition, the user can install a silencer near the air outlet 100b in the duct 100 to absorb the noise during the operation of the entire duct 100. The silencer is a commercially available product, so no further explanation is given here.

[0071] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A fresh air air conditioner, characterized in that: include: The pipeline has an air inlet and an air outlet, and along the air supply direction, the pipeline includes: A dehumidification section is provided with a baffle portion therein, and the dehumidification section is divided into at least two sub-dehumidification sections, each of the sub-dehumidification sections is connected to the air inlet and the air outlet, and a dehumidification component is provided in the sub-dehumidification section; a mixing section, for receiving the gas from the sub-dehumidification section; and The heating section is used to heat the gas flowing through the mixing section.

2. The fresh air air conditioner according to claim 1, characterized in that: Along the air supply direction, the sub-dehumidification section includes: A dehumidification area, wherein the dehumidification assembly is located in the dehumidification area; and The buffer area is located between the dehumidification area and the mixing section, and the buffer area is connected to the dehumidification area and the mixing section.

3. The fresh air air conditioner according to claim 2, characterized in that: Along the air supply direction, the depth of the buffer area is 30cm-40cm.

4. The fresh air air conditioner according to claim 1, characterized in that: A gap is provided between the dehumidification component and the barrier portion, and the maximum size of the gap does not exceed 10 cm.

5. The fresh air air conditioner according to claim 1, characterized in that: The baffle is in a plate shape and divides the dehumidification section into two sub-dehumidification sections.

6. The fresh air air conditioner according to claim 1, characterized in that: The sub-dehumidification sections are circumferentially distributed around the pipeline axis.

7. The fresh air air conditioner according to claim 1, characterized in that: Along the air supply direction, the cross-sectional area at each position of the sub-dehumidification section is the same.

8. The fresh air air conditioner according to claim 7, characterized in that: Each of the sub-dehumidification sections has an inlet and an outlet that are arranged opposite to each other, wherein the inlet area of ​​each of the sub-dehumidification sections is the same, and the outlet area of ​​each of the sub-dehumidification sections is the same.

9. The fresh air air conditioner according to claim 1, characterized in that: Along the air supply direction, the fresh air air conditioner also includes: An electric preheating module, disposed at the front end of the dehumidification section, for initially heating the gas entering the pipeline through the air inlet; A primary filtering module, arranged at the rear end of the electric preheating module, for performing primary filtering on the gas passing through the electric preheating module; A heating module, disposed at the rear end of the primary filtering module and at the front end of the dehumidification section, for heating the gas passing through the primary filtering module; A humidifying module, disposed between the dehumidifying section and the heating module, for humidifying the gas passing through the heating module; a fan module, disposed at the rear end of the heating section, for accelerating the airflow entering the pipeline; and The re-filtering module is arranged at the rear end of the fan module and is used for re-filtering the accelerated airflow.

10. The fresh air air conditioner according to claim 2, characterized in that: The dehumidification component has a medium inlet pipe and a medium outlet pipe, and the medium inlet pipe and the medium outlet pipe both penetrate the side wall of the pipeline and extend into the dehumidification area.

Images