Combined hot water air conditioning box

Abstract

The utility model relates to the technical field of hot water air conditioning boxes, in particular to a combined hot water air conditioning box which comprises an air inlet section, a heating section and an air outlet section, the air inlet section is connected with the heating section through an air conditioning box body and then connected with the air outlet section, and the air inlet section is further directly connected with the air outlet section through a bypass air pipe. Air volume adjusting valves are arranged on the air conditioner box body between the air inlet section and the heating section and the bypass air pipe, and a temperature sensor is arranged on the air conditioner box body between the heating section and the air outlet section. Temperature is adjusted by mixing cold air and hot air, energy waste caused by heating fresh air by purely increasing water supply temperature is avoided, energy consumption is effectively reduced, and production cost is saved. By means of cooperative work of the air volume adjusting valve and the temperature sensor, accurate control over the temperature of the air supply outlet is achieved, the strict requirements of different environments for the temperature are met, and the indoor comfort level or the stability of the industrial production environment is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot water air conditioning boxes, specifically a combined hot water air conditioning box. Background Technology

[0002] In industrial and civil building environments, the efficient and stable operation of modular hot water air conditioning units is crucial. Their design must be based on local extreme temperatures and indoor design parameters to ensure that indoor temperature requirements are met even in harsh environments. In special scenarios such as explosion-proof areas, they face the dual challenges of energy consumption and safe operation.

[0003] The design of the combined hot water air conditioning unit is based on local extreme temperatures (e.g., -40℃) and indoor design parameters (requiring an indoor temperature higher than 5℃). The heating section coil is either steam-heated or hot water-heated. Indoor temperature control is achieved by setting the outlet temperature and adjusting the steam or hot water flow rate using a regulating valve.

[0004] The air conditioners used in explosion-proof zones are 100% fresh air supply units without return air devices, resulting in higher energy consumption compared to air conditioners with return air. Hot water supply for the air conditioning systems utilizes a single heating unit to supply water to multiple air conditioners.

[0005] In winter, when the temperature is below -20℃, in order to ensure that the air conditioning coils do not freeze and meet the workshop's air exchange rate requirements (the air volume cannot be reduced), the air conditioning water supply temperature needs to reach above 75℃. At this time, the outlet temperature can reach above 55℃, but this will result in energy waste and increased production costs. If the water supply temperature is reduced, the equipment coils will freeze and be damaged. The area in use cannot maintain the normal production temperature, leading to production stoppage, or even greater losses such as equipment and fire sprinkler system freezing damage.

[0006] Therefore, a modular hot water air conditioning unit has become an urgent problem to be solved. Utility Model Content

[0007] The purpose of this invention is to provide a combined hot water air conditioning unit that effectively solves the problems of energy waste and temperature control under low-temperature conditions in winter, thereby achieving energy saving and temperature control.

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a combined hot water air conditioning unit, including an air inlet section, a heating section and an air outlet section, wherein the air inlet section is connected to the heating section and then to the air outlet section through the air conditioning unit body, and the air inlet section is also directly connected to the air outlet section through a bypass ventilation pipe;

[0009] Air volume regulating valves are installed on the air conditioning unit between the air inlet section and the heating section, as well as on the bypass ventilation pipe. Temperature sensors are installed on the air conditioning unit between the heating section and the air outlet section.

[0010] Furthermore, the air inlet section includes a rainproof louver, an air inlet regulating valve, a coarse filter, and a medium-efficiency filter. The rainproof louver is located at the air inlet end of the air conditioning unit, and the air inlet regulating valve is located at the front of the air conditioning unit. The air entering the air conditioning unit passes through the coarse filter and the medium-efficiency filter in sequence.

[0011] Furthermore, the heating section includes a heating coil, a hot water supply pipe, and a hot water return pipe. The heating coil is connected to the air conditioning unit and is located after the medium-efficiency filter. The hot water supply pipe and the hot water outlet pipe are both connected to the heating coil to form a water circulation system.

[0012] Furthermore, the air outlet section includes a fan and an air outlet duct. The fan is connected to the air conditioning unit and is located after the heating coil, and the air outlet duct is connected to the fan.

[0013] Furthermore, it also includes an auxiliary air intake section, which has the same structure as the air intake section. One end of the bypass ventilation pipe is connected to the end of the auxiliary air intake section, and the other end is connected to the air conditioning unit between the heating coil and the fan.

[0014] Furthermore, the air inlet section includes rainproof louvers, an air inlet regulating valve, a coarse filter, a medium-efficiency filter, and a fan. The rainproof louvers are located at the air inlet end of the air conditioning unit, and the air inlet regulating valve is located at the front of the air conditioning unit. The air entering the air conditioning unit passes sequentially through the coarse filter, the medium-efficiency filter, and the fan.

[0015] Furthermore, the heating section includes a heating coil, a hot water supply pipe, and a hot water return pipe. The heating coil is connected to the air conditioning unit and is located after the medium-efficiency filter. The hot water supply pipe and the hot water outlet pipe are both connected to the heating coil to form a water circulation system.

[0016] Furthermore, the air outlet section includes an air outlet duct, which connects the heating coil and the bypass ventilation duct.

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] This invention regulates temperature by mixing hot and cold air, avoiding the energy waste caused by simply increasing the water supply temperature to heat the fresh air, effectively reducing energy consumption and saving production costs.

[0019] This invention utilizes the coordinated operation of an airflow regulating valve and a temperature sensor to achieve precise control of the air outlet temperature, meeting the stringent temperature requirements of different environments and improving indoor comfort or the stability of industrial production environments.

[0020] This invention ensures that the air conditioning coils are not damaged by freezing, avoids production stoppages due to equipment damage, ensures production continuity, and reduces production risks. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the combined hot water air conditioning unit of this utility model.

[0022] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention, which is a combined hot water air conditioning unit.

[0023] As shown in the figure: 1. Air inlet section, 2. Heating section, 3. Air outlet section, 4. Air conditioning unit, 5. Bypass ventilation duct, 6. Air volume regulating valve, 7. Temperature sensor, 8. Rainproof louvers, 9. Air inlet regulating valve, 10. Coarse filter, 11. Medium filter, 12. Heating coil, 13. Hot water supply pipe, 14. Hot water return pipe, 15. Fan, 16. Air outlet duct, 17. Auxiliary air inlet section. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention provides a more detailed description of a combined hot water air conditioning unit in conjunction with the accompanying drawings.

[0027] Combined with appendix Figure 1-2 The working principle of this utility model is as follows:

[0028] I. Design of Bypass Ventilation Duct

[0029] By adding a bypass duct 5 after the primary and secondary air conditioning units to bypass the heating coil, the unheated fresh air is mixed with the heated fresh air, achieving temperature control without reducing the air volume.

[0030] II. Airflow regulating valve control

[0031] Manual or electric air volume regulating valves are installed on the air ducts entering the main air conditioning unit to control the air volume entering the heating coil. Similarly, regulating valves are installed on the bypass ventilation duct 5. By adjusting the opening of the two air valves, the temperature of the air outlet duct 16 is controlled. The ratio of the hot and cold air valves is adjusted proportionally to achieve precise temperature regulation.

[0032] III. Real-time adjustment of temperature sensor

[0033] A temperature sensor 7 is installed on the main air supply duct behind the heating coil. The air volume regulating valve 6 is adjusted in real time according to the information displayed by the sensor. This not only meets the safety requirement of not reducing the air volume, but also achieves precise temperature control and energy saving. The air outlet temperature can be reduced from 55℃ and above to an adjustable range of 15℃-45℃.

[0034] Combined with appendix Figure 1-2 The specific implementation process of this utility model of a combined hot water air conditioning unit is as follows:

[0035] Example 1: Integrated van

[0036] Combined with appendix Figure 1 A combined hot water air conditioning unit includes an air inlet section 1, a heating section 2, and an air outlet section 3, which are connected by an air conditioning unit body 4.

[0037] The air intake section 1 includes rainproof louvers 8, an air intake regulating valve 9, a coarse filter 10, and a medium-efficiency filter 11. The rainproof louvers 8 are located at the air intake end of the air conditioning unit 4 to prevent rainwater from entering. The air intake regulating valve 9 controls the air intake volume. Air passes sequentially through the coarse filter 10 and the medium-efficiency filter 11 to remove large and small particulate matter from the air.

[0038] Heating section 2 includes a heating coil 12, a hot water supply pipe 13, and a hot water return pipe 14. The heating coil 12 is connected to the air conditioning unit 4 and is located after the medium-efficiency filter 11 to heat the filtered air. Both the hot water supply pipe 13 and the hot water return pipe 14 are connected to the heating coil 12 to form a water circulation system, ensuring stable operation of the heating coil 12.

[0039] Air outlet section 3 includes a fan 15 and an air outlet duct 16. The fan 15 is connected to the air conditioning unit 4 and is located after the heating coil 12, used to deliver heated air. The air outlet duct 16 is connected to the fan 15 and directs the air to the target area.

[0040] Air volume regulating valves 6 are installed on the air conditioning unit 4 between the air intake section 1 and the heating section 2, as well as on the bypass ventilation pipe 5. These valves are used to regulate the amount of air entering the heating section 2 and the amount of air passing through the bypass ventilation pipe 5, thereby achieving precise control of airflow and adjusting the ratio of hot and cold air valves proportionally to achieve precise temperature regulation.

[0041] A temperature sensor 7 is installed on the air conditioning unit 4 between the heating section 2 and the air outlet section 3 to monitor the air temperature in real time and ensure stable indoor temperature.

[0042] This utility model also includes an auxiliary air intake section 17, which has the same structure as the air intake section 1. One end of the bypass ventilation pipe 5 is connected to the end of the auxiliary air intake section 17, and the other end is connected to the air conditioning unit 4 between the heating coil 12 and the fan 15, increasing the flexibility of airflow adjustment, allowing unheated fresh air to mix with heated fresh air, and achieving temperature control without reducing airflow.

[0043] Example 2: Split-type van

[0044] Combined with appendix Figure 2 A modular hot water air conditioning unit includes an air inlet section 1, a heating section 2, and an air outlet section 3, which are connected by an air conditioning unit body 4. The air inlet section 1 is also directly connected to the air outlet section 3 through a bypass ventilation pipe 5 to achieve flexible adjustment of airflow.

[0045] The air inlet section 1 includes rainproof louvers 8, an air inlet regulating valve 9, a coarse filter 10, a medium-efficiency filter 11, and a fan 15. The rainproof louvers 8 are located at the air inlet end of the air conditioning unit 4 to prevent rainwater from entering. The air inlet regulating valve 9 controls the air intake volume. Air passes sequentially through the coarse filter 10 and the medium-efficiency filter 11 to remove large and small particulate matter; it is then blown out by the fan 15 to enhance airflow and improve filtration efficiency.

[0046] Heating section 2 includes a heating coil 12, a hot water supply pipe 13, and a hot water return pipe 14. The heating coil 12 is connected to the air conditioning unit 4 and is located after the medium-efficiency filter 11 to heat the filtered air. Both the hot water supply pipe 13 and the hot water return pipe 14 are connected to the heating coil 12 to form a water circulation system, ensuring stable operation of the heating coil 12.

[0047] The air outlet section 3 includes an air outlet duct 16, which is connected to a fan 15 to direct air to the target area.

[0048] Air volume regulating valves 6 are installed on the air conditioning unit 4 between the air intake section 1 and the heating section 2, as well as on the bypass ventilation pipe 5. These valves are used to regulate the amount of air entering the heating section 2 and the amount of air passing through the bypass ventilation pipe 5, thereby achieving precise control of airflow and adjusting the ratio of hot and cold air valves proportionally to achieve precise temperature regulation.

[0049] A temperature sensor 7 is installed on the air conditioning unit 4 between the heating section 2 and the air outlet section 3 to monitor the air temperature in real time and ensure stable indoor temperature.

[0050] One end of the bypass ventilation duct 5 is connected to the end of the auxiliary air intake section 17, and the other end is connected to the air conditioning unit 4 between the heating coil 12 and the fan 15, which increases the flexibility of airflow adjustment and allows unheated fresh air to mix with heated fresh air, so as to achieve temperature control without reducing airflow.

[0051] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A modular hot water air conditioning unit, characterized in that: It includes an air inlet section (1), a heating section (2) and an air outlet section (3). The air inlet section (1) is connected to the heating section (2) and then to the air outlet section (3) through the air conditioning unit (4). The air inlet section (1) is also directly connected to the air outlet section (3) through a bypass ventilation pipe (5). Air volume regulating valves (6) are provided on the air conditioning unit (4) between the air inlet section (1) and the heating section (2) and on the bypass ventilation pipe (5). Temperature sensors (7) are provided on the air conditioning unit (4) between the heating section (2) and the air outlet section (3).

2. The combined hot water air conditioning unit according to claim 1, characterized in that: The air inlet section (1) includes a rainproof louver (8), an air inlet regulating valve (9), a coarse filter (10), and a medium-efficiency filter (11). The rainproof louver (8) is located at the air inlet end of the air conditioning unit (4), and the air inlet regulating valve (9) is located at the front of the air conditioning unit (4). The air entering the air conditioning unit (4) passes through the coarse filter (10) and the medium-efficiency filter (11) in sequence.

3. A combined hot water air conditioning unit according to claim 2, characterized in that: The heating section (2) includes a heating coil (12), a hot water supply pipe (13), and a hot water return pipe (14). The heating coil (12) is connected to the air conditioning unit (4) and is located after the medium-efficiency filter (11). The hot water supply pipe (13) and the hot water outlet pipe are both connected to the heating coil (12) to form a water circulation.

4. A combined hot water air conditioning unit according to claim 3, characterized in that: The air outlet section (3) includes a fan (15) and an air outlet pipe (16). The fan (15) is connected to the air conditioning unit (4) and is located after the heating coil (12). The air outlet pipe (16) is connected to the fan (15).

5. A combined hot water air conditioning unit according to claim 4, characterized in that: It also includes an auxiliary air intake section (17), which has the same structure as the air intake section (1). One end of the side ventilation pipe (5) is connected to the end of the auxiliary air intake section (17), and the other end is connected to the air conditioning unit (4) between the heating coil (12) and the fan (15).

6. A combined hot water air conditioning unit according to claim 1, characterized in that: The air inlet section (1) includes a rainproof louver (8), an air inlet regulating valve (9), a coarse filter (10), a medium-efficiency filter (11), and a fan (15). The rainproof louver (8) is located at the air inlet end of the air conditioning unit (4), and the air inlet regulating valve (9) is located at the front of the air conditioning unit (4). The air entering the air conditioning unit (4) passes through the coarse filter (10), the medium-efficiency filter (11), and the fan (15) in sequence.

7. A combined hot water air conditioning unit according to claim 6, characterized in that: The heating section (2) includes a heating coil (12), a hot water supply pipe (13), and a hot water return pipe (14). The heating coil (12) is connected to the air conditioning unit (4) and is located after the medium-efficiency filter (11). The hot water supply pipe (13) and the hot water outlet pipe are both connected to the heating coil (12) to form a water circulation.

8. A combined hot water air conditioning unit according to claim 7, characterized in that: The air outlet section (3) includes an air outlet pipe (16), which connects the heating coil (12) and the bypass ventilation pipe (5).

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