A combined air conditioner with double air duct control

Abstract

The utility model discloses a combined air conditioning unit of double air duct control relates to preparation workshop purification air conditioning box technical field, solved single combined air conditioning box to different workshop air supply, difficult to satisfy different temperature and humidity and air volume's problem. The cavity in the combined air conditioning unit is divided into multiple function sections according to the flow direction of air in turn, including: fresh air section; primary efficiency section; return air section, and the return air section has two return air inlets for receiving return air in different workshops; surface cooling section; heating section one, heating section two; humidification section one, humidification section two; fan section one, fan section two; middle efficiency section one, middle efficiency section two; air supply section one, air supply section two; middle efficiency section one, middle efficiency section two; air supply section one, air supply section two. The device realizes a set of combined air conditioning unit to provide two different temperature and humidity air, thereby under the premise of satisfying different temperature and humidity demand, reduces the number of combined air conditioning box, reduces the initial investment of equipment, improves workshop energy utilization.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioning units for purification workshops, and in particular to a combined air conditioning device with dual-duct control. Background Technology

[0002] Formulation workshops generally require temperature and humidity control. For workshops with specialized processes, the temperature and humidity requirements vary. Currently, the industry typically uses modular air conditioning units (MAUs) to control the workshop's temperature and humidity. Different MAUs are required for different temperature and humidity needs to achieve precise control. However, different MAUs also bring other problems: First, different MAUs require more room space. If the actual space is insufficient, or if space issues were not adequately considered in the initial planning, implementation becomes difficult. Second, adding a MAU also requires adding a chilled water pipeline and a steam pipeline, increasing initial costs.

[0003] For example, the combined air conditioning units disclosed in CN1854624A and CN203561006U all use a single air duct. If this type of air conditioning unit is used to supply air to different workshops, the temperature, humidity and air volume of the air supplied to each workshop cannot be adjusted individually, which has significant limitations. If each workshop is equipped with a separate set of combined air conditioning units, the cost will be high. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a combined air conditioning device with dual air duct control, which solves the problem that a single combined air conditioning unit cannot meet the different temperature, humidity and air volume requirements when supplying air to different workshops.

[0005] The technical solution of this utility model to achieve the above objectives is a combined air conditioning device with dual air duct control. The cavity inside the combined air conditioning device is divided into multiple functional sections according to the air flow direction, including:

[0006] The fresh air section has a fresh air inlet that facilitates the entry of fresh air.

[0007] The primary filter section is used to filter the fresh air coming from the fresh air section.

[0008] The return air section is used to mix the fresh air treated by the primary filtration section with the return air, and the return air section has two return air inlets for receiving return air from different workshops;

[0009] The surface cooling section is used to cool and dehumidify the air mixed in the return air section;

[0010] Heating section one and heating section two are connected in parallel with the surface cooling section and are used to regulate the air temperature;

[0011] Humidification section one and humidification section two are connected in series with heating section one and heating section two, respectively, to regulate the humidity of the air;

[0012] Fan section one and fan section two are connected in series with humidification section one and humidification section two, respectively, to control the air volume;

[0013] Medium-efficiency section one and medium-efficiency section two are connected in series with fan section one and fan section two respectively, and are used for secondary filtration of air;

[0014] Air supply section one and air supply section two are connected in series with medium efficiency section one and medium efficiency section two, respectively, to supply air to different workshops.

[0015] Preferably, it further includes a flow equalization section that makes the airflow velocity more uniform. The flow equalization section is located between the return air section and heating section one and heating section two, and heating section one and heating section two are respectively connected to the flow equalization section.

[0016] Preferably, the heating section one and the heating section two, the humidification section one and the humidification section two, the fan section one and the fan section two, the medium-efficiency section one and the medium-efficiency section two, and the air supply section one and the air supply section two are separated by partitions.

[0017] Preferably, each of the first air supply section and the second air supply section has an air outlet, and the two air outlets are connected to different workshops respectively.

[0018] Preferably, the fresh air inlet is connected to a fresh air duct, and a split-leaf regulating valve is installed on the fresh air duct.

[0019] Preferably, the return air inlet is connected to a return air duct, and a split-leaf regulating valve is installed on the return air duct.

[0020] Its advantages over existing technologies are:

[0021] In this invention, fresh air undergoes preliminary filtration in the primary air filtration section before entering the return air section. There, it mixes with return air from different workshops, then proceeds to the surface cooling section for cooling and dehumidification. Finally, it enters two different air ducts. One portion sequentially enters the first heating section, the first humidification section, and the first fan section, where temperature, humidity, and airflow are regulated. It then undergoes secondary filtration in the first medium-efficiency air filtration section, before being delivered to the corresponding workshop by the first air supply section. The other portion sequentially enters the second heating section, the second humidification section, and the second fan section, where temperature, humidity, and airflow are regulated. It then undergoes secondary filtration in the second medium-efficiency air filtration section, before being delivered to the corresponding workshop by the second air supply section. The supply air temperature, humidity, and airflow for each workshop can be controlled independently. This device enables a single combined air conditioning unit to provide two different temperatures and humidity levels, thereby reducing the number of combined air conditioning units, lowering initial equipment investment, and improving workshop energy efficiency while meeting varying temperature and humidity requirements. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of each functional section within a dual-duct combined air conditioning unit;

[0023] Figure 2 This is a schematic diagram of the airflow direction inside a dual-duct combined air conditioning unit;

[0024] Figure 3 This is an airflow diagram when a dual-duct combined air conditioning unit is used in conjunction with the workshop.

[0025] In the diagram, 1. Fresh air section; 101. Fresh air inlet; 2. Pre-filter section; 3. Return air section; 301. Return air inlet; 4. Cooling section; 5. Flow equalization section; 6. Heating section one; 7. Humidification section one; 8. Fan section one; 9. Medium-efficiency section one; 10. Supply air section one; 1001. Supply air outlet; 11. Heating section two; 12. Humidification section two; 13. Fan section two; 14. Medium-efficiency section two; 15. Supply air section two; 16. Manually operated double-leaf regulating valve; 17. Electrically operated double-leaf regulating valve; 18. Partition; 19. Workshop. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] like Figure 1As shown, a preferred embodiment of this utility model proposes a combined air conditioning device with dual air duct control. Based on the original combined air conditioning device, the heating section, humidification section, fan section, medium efficiency section and air supply section are divided into two to form a dual air duct, which can supply air to two different workshops 19. The air volume, temperature and humidity of each workshop 19 can be controlled independently.

[0028] Specifically, the cavity of this modular air conditioning unit mainly includes the following functional sections: fresh air section 1, primary air section 2, return air section 3, air equalization section 5, surface cooling section 4, heating section, humidification section, EC fan section, medium-efficiency section, and supply air section. Each functional section is connected in series. Each functional section is equipped with corresponding auxiliary equipment to perform air filtration, air equalization, cooling and dehumidification, heating, humidification, airflow regulation, secondary filtration, and air supply, respectively.

[0029] The heating section, humidification section, EC fan section, medium-efficiency section, and air supply section are divided into two parts by partition 18 along the direction of air flow, forming heating section 16, heating section 21, humidification section 17, humidification section 212, EC fan section 18, EC fan section 213, medium-efficiency section 19, medium-efficiency section 214, air supply section 10, and air supply section 215, respectively. These form two air ducts that are connected in parallel with the flow equalization section 5. These two air ducts are independent and supply air to different workshops 19 respectively.

[0030] Specifically, heating section 1 (6) and heating section 2 (11) are separated by partition 18, humidification section 1 (7) and humidification section 2 (12) are separated by partition 18, EC fan section 1 (8) and EC fan section 2 (13) are separated by partition 18, medium-efficiency section 1 (9) and medium-efficiency section 2 (14) are separated by partition 18, and air supply section 1 (10) and air supply section 2 (15) are separated by partition 18.

[0031] In other words, air duct one includes heating section 6, humidification section 7, EC fan section 8, medium-efficiency section 9, and air supply section 10, which are connected in series. Air duct two includes heating section 2 11, humidification section 2 12, EC fan section 2 13, medium-efficiency section 2 14, and air supply section 2 15, which are connected in series.

[0032] A fresh air inlet 101 is located at the fresh air section 1 of the air conditioning unit. This fresh air inlet 101 is connected to a fresh air duct, on which a manually operated split-leaf damper 16 is installed. The fresh air duct connects to the main duct, which is equipped with an electrically operated split-leaf damper 17. The electrically operated split-leaf damper 17 acts as the main valve, electrically controlling the fresh air flow in the main duct. The manually operated split-leaf damper 16 is used to manually control the fresh air flow of individual combined air conditioning units.

[0033] The return air section 3 has two return air inlets 301, each connected to a return air duct. These two return air ducts are connected to different workshops 19 to receive return air from those workshops. After entering the return air section 3, the return air mixes with the treated fresh air.

[0034] Air supply section 10 and air supply section 2 each have an air outlet 1001. Each air outlet 1001 is connected to a separate air supply duct. Air supply section 10 and air supply section 2 are connected to two different workshops 19 through the air supply duct to supply air to the corresponding workshops 19.

[0035] Each air supply duct is equipped with a manually operated split-leaf regulating valve 16 to control the duct flow.

[0036] refer to Figure 2 , Figure 3 The arrows in the diagram indicate the direction of gas flow. During operation, outdoor fresh air enters fresh air section 1 through the fresh air duct, then enters pre-filter section 2 for initial filtration, and then enters return air section 3 to mix with the return air in workshop 19. The return air in workshop 19 enters return air section 3 through the return air duct.

[0037] After the fresh air and return air are mixed in the return air section 3, the mixed air will enter the surface cooling section 4 to cool and dehumidify it.

[0038] Based on the air volume and temperature and humidity requirements of workshop 19, after the EC fan section 18 frequency converter is used, the air volume entering the air duct 1 is changed; after the EC fan section 213 frequency converter is used, the air volume entering the air duct 2 is changed.

[0039] After being processed by the cooling section 4, a portion of the air enters the first air duct, then sequentially enters the heating section 6 (temperature regulation), the humidification section 7 (humidification and humidity regulation), the EC fan section 8 (airflow regulation), the medium-efficiency section 9 (secondary filtration), and finally enters the supply air section 10, where it is delivered to the corresponding workshop 19 through the supply air duct. After bearing the indoor heating and cooling load in workshop 19, the air re-enters the return air section 3 of the combined air conditioning unit through the return air duct.

[0040] Another portion enters air duct two, sequentially flowing into heating section two 11 (temperature regulation), humidification section two 12 (humidification and humidity regulation), EC fan section two 13 (airflow regulation), medium-efficiency section two 14 (secondary filtration), and finally into supply air section two 15, where it is delivered to the corresponding workshop 19 via the supply air duct. After handling the indoor heating and cooling load in workshop 19, the air then re-enters the return air section 3 of the combined air conditioning unit via the return air duct.

[0041] The partition 18 in the middle of the air conditioning unit isolates the air, allowing it to enter its respective air duct and be individually controlled according to temperature, humidity, and airflow requirements. This allows a single combined air conditioning unit to supply air to different workshops 19, with individual control over airflow, temperature, and humidity.

[0042] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A combined air conditioning unit with dual air duct control, characterized in that, The cavity inside this modular air conditioning unit is divided into multiple functional sections according to the direction of airflow, including: Fresh air section (1), wherein the fresh air section (1) has a fresh air inlet (101) that facilitates the entry of fresh air; The primary filter section (2) is used to filter the fresh air coming from the fresh air section (1); Return air section (3), the return air section (3) is used to mix the fresh air treated by the primary air section (2) with the return air, the return air section (3) has two return air inlets (301) for receiving return air from different workshops (19); The surface cooling section (4) is used to cool and dehumidify the air mixed by the return air section (3); Heating section one (6) and heating section two (11) are connected in parallel with the surface cooling section (4) to regulate the temperature of the air; Humidification section one (7) and humidification section two (12) are connected in series with heating section one (6) and heating section two (11) respectively, and are used to regulate the humidity of the air; Fan section 1 (8) and fan section 2 (13) are connected in series with humidification section 1 (7) and humidification section 2 (12) respectively to control the air volume; Medium-efficiency section one (9) and medium-efficiency section two (14) are connected in series with fan section one (8) and fan section two (13) respectively, for secondary filtration of air; Air supply section one (10) and air supply section two (15) are connected in series with medium efficiency section one (9) and medium efficiency section two (14) respectively, and supply air to different workshops (19).

2. The combined air conditioning unit with dual-duct control according to claim 1, characterized in that, It also includes a flow equalization section (5) that makes the airflow more uniform. The flow equalization section (5) is located between the return air section (3) and heating section one (6) and heating section two (11). Heating section one (6) and heating section two (11) are respectively connected to the flow equalization section (5).

3. The combined air conditioning unit with dual-duct control according to claim 1, characterized in that, The heating section 1 (6) and heating section 2 (11), the humidification section 1 (7) and humidification section 2 (12), the fan section 1 (8) and fan section 2 (13), the medium-efficiency section 1 (9) and medium-efficiency section 2 (14), and the air supply section 1 (10) and air supply section 2 (15) are separated by partitions (18).

4. The combined air conditioning unit with dual-duct control according to claim 1, characterized in that, The first air supply section (10) and the second air supply section (15) each have an air supply outlet (1001), and the two air supply outlets (1001) are respectively connected to different workshops (19).

5. The combined air conditioning unit with dual-duct control according to claim 1, characterized in that, The fresh air inlet (101) is connected to a fresh air duct, and a split-leaf regulating valve is installed on the fresh air duct.

6. The combined air conditioning unit with dual-duct control according to claim 1, characterized in that, The return air inlet (301) is connected to a return air duct, and a split-leaf regulating valve is installed on the return air duct.

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