Isoenthalpy humidifying synergistic device suitable for multi-split air conditioner and air-cooled heat pump

Abstract

The utility model provides an isenthalpy humidifying synergistic device suitable for a multi-split air conditioner and an air-cooled heat pump. The isenthalpy humidifying synergistic device comprises a water supply pipe, a water tank, an ultrasonic humidifier, a fan section, a mixing cavity, a filtering section and a main air conveying pipe. The fan section is provided with an air inlet which is provided with a filter screen; positive pressure is provided in the fan section through a fan and is blown to the mixing cavity; a water supply pipe is connected with a water tank, an ultrasonic humidifier is arranged above the water tank and located in a mixing cavity, multiple sets of perforated fins are arranged in the mixing cavity, an outlet of the mixing cavity is connected with a filtering section, and wet air is filtered by the filtering section and then conveyed to a main air conveying pipe. The two sides of the main air conveying pipe are connected with branch air conveying pipes correspondingly, and the branch air conveying pipes convey humid air to the surface of the condenser. Air is conveyed to the surface of the condenser after being filtered, water quality pollution to the surface of the condenser is avoided, secondary pollution caused by absorption of air dust is avoided, the heat exchange effect of the heat exchanger can be efficiently improved, and meanwhile the follow-up maintenance workload is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, specifically to the technical field of summer enhanced heat exchange of central air conditioning systems, and specifically to an isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps. Background Art

[0002] Both the multi-split system and the air-cooled heat pump central system are common central air-conditioning systems. Both require the outdoor unit or heat pump host to be arranged in an open area outdoors, and then the prepared cold or heat is transported to the indoor through pipelines. In the summer cooling condition of the air-conditioning system, the outdoor unit or the air-cooled heat pump host needs to release the heat transported back from the terminal through the condenser, so as to achieve the purpose of cooling the indoor temperature in summer. At present, most air-conditioning outdoor units and air-cooled heat pump equipment reasonably set the equipment capacity and arrange the space distance according to standard specifications to meet the heat exchange requirements and provide continuous and stable energy supply. However, the enhanced heat exchange demand of the air-conditioning outdoor unit still needs to be considered in the following situations.

[0003] 1) The equipment layout spacing does not meet the design requirements, there is an air flow short circuit between the equipment, and the condenser heat dissipation is poor;

[0004] 2) The outdoor space is narrow or close to the building, the air velocity on the main windward surface of the condenser is too large, and the heat dissipation of the condenser is poor;

[0005] 3) Other installation issues, such as the equipment being located on the leeward side of the building or near a heat source where the air temperature and humidity are not conducive to heat dissipation;

[0006] 4) The equipment is old and the system is old and inefficient;

[0007] 5) The cooling and heating area is expanded, and the system operates beyond the rated output;

[0008] The above situation will directly lead to poor heat dissipation of the air-conditioning system condenser, decreased compressor efficiency, and increased air-conditioning operating costs. At the same time, since the compressor is generally equipped with an intake pressure or exhaust pressure protection device, when the pressure exceeds the limit value, the host will start the protection program, reduce the output or shut down for protection, which will have an adverse effect on the thermal comfort of the end user.

[0009] At present, in order to improve the heat exchange efficiency of the condenser in summer, the commonly used enhanced heat exchange technologies include high-pressure spray or sprinkler technology. The isothermal humidification process of the spray or sprinkler solution increases the enthalpy value of the final state point of the heat and moisture treatment. The spray or sprinkler solution has common drawbacks in daily use. For example, due to the poor water quality of the spray or sprinkler system or the droplets absorbing dust from the air, the nozzle area on the surface of the air conditioner condenser is prone to serious dirt or nozzle blockage. Utility Model Content

[0010] In response to the problems existing in the prior art, the utility model proposes an air-cooled heat pump and a multi-split isenthalpic humidification and efficiency enhancement device. The principle is that the moist air undergoes an isohumidification heating process on a dry hot surface to significantly absorb the heat of the hot surface, which can increase the heat exchange of the air-cooled heat pump and the multi-split condenser and improve the efficiency of the air-conditioning equipment.

[0011] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0012] The invention discloses an isenthalpic humidification and efficiency enhancement device suitable for a multi-split unit and an air-cooled heat pump, comprising a water supply pipe, a water tank, an ultrasonic humidifier, a fan section, a mixing cavity, a filter section, and a main air supply pipe; the fan section is provided with an air inlet, and a filter screen is provided at the air inlet; the fan section provides positive pressure to blow toward the mixing cavity through the fan; the water supply pipe is connected to the water tank, an ultrasonic humidifier is provided above the water tank, the ultrasonic humidifier is located in the mixing cavity, a plurality of groups of perforated fins are provided in the mixing cavity, the outlet of the mixing cavity is connected to the filter section, the filter section filters the wet air and then transports it to the main air supply pipe; the two sides of the main air supply pipe are respectively connected to branch air supply pipes, and the branch air supply pipes transport the wet air to the surface of the condenser.

[0013] Furthermore, the branch air pipes transport the humid air vertically to the surface of the condenser or transport the humid air to the surface of the condenser on both sides.

[0014] Furthermore, when the branch air pipe vertically transports the humid air to the condenser, a circular diffuser is provided under the branch air pipe, and the circular diffuser is arranged in a plum blossom shape according to the size of the condenser; the circular diffuser is provided with 360-degree air outlets, and the air outlets have no less than 3 layers.

[0015] Furthermore, when the branch air pipe transports humid air from both sides to the surface of the condenser, the branch air pipe is provided with an opposite side air outlet; a wind shield plate is provided at the opposite side air outlet, and when wind comes from the opposite side, the air outlet on this side is closed under the action of the wind shield plate, and the air volume at the opposite side air outlet is increased; and the air outlet is provided with adjustable louvers, which are debugged before the system is installed to ensure that the airflow is evenly distributed on the surface of the condenser.

[0016] Furthermore, differential pressure sensor mounting holes are arranged before and after the filtering section arranged at the outlet of the mixing cavity, and the differential pressure sensor is installed on the differential pressure sensor mounting holes.

[0017] Furthermore, a sewage pipe is arranged at the lower part of the water tank.

[0018] Furthermore, the main gas pipeline and the branch gas pipeline through which the humid air passes are designed to be statically pressure balanced, and the pressure of each branch pipeline is balanced.

[0019] Furthermore, the main gas pipeline and the branch gas pipeline through which the humid air passes adopt circular PVC pipes.

[0020] Furthermore, a current sensor is installed at the condenser power switch, and the current sensor is used to monitor the opening state of the condenser fan. Temperature probes of the temperature difference sensor are respectively arranged in the outdoor open area and outside the condenser; the temperature probes of the temperature difference sensor respectively monitor the ambient temperature of the condenser location and the air temperature on the condenser surface.

[0021] Compared with the prior art, the beneficial effect of the utility model is that the isenthalpic humidification and enhancement device proposed in the utility model performs isenthalpic humidification treatment on the air and then heats it through the high-temperature fins of the condenser. Under the premise of the same humidification intensity, the enthalpy enhancement effect of the utility model is significantly higher than that of the spray or sprinkler scheme.

[0022] The utility model proposes a set of enthalpy humidification and efficiency enhancement devices suitable for multi-split units and air-cooled heat pumps. The air is sent to the surface of the condenser after being filtered, which will not cause water pollution to the surface of the condenser and will not absorb air dust to cause secondary pollution. It can effectively improve the heat exchange effect of the heat exchanger and reduce the subsequent maintenance workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall front view of the utility model branch air pipe for vertically conveying wet air;

[0025] Figure 2 It is a schematic side view of the entirety of the utility model branch air pipe for vertically conveying wet air;

[0026] Figure 3 This is a schematic diagram of the overall front view of the branch air pipe of the utility model for conveying humid air from both sides;

[0027] Figure 4 It is a schematic side view of the utility model branch air pipe that transports humid air from both sides;

[0028] Markings in the figure: 1. Water supply pipe; 2. Water tank; 2-1. Drain pipe; 3. Ultrasonic humidifier; 4. Fan section; 4-1. Fan; 4-2. Filter; 5. Mixing cavity; 5-1. Perforated fins; 6. Filter section; 6-1. Pressure difference sensor installation hole; 7. Main gas pipe; 8. Branch gas pipe; 9. Circular diffuser; 10. Opposite air outlet; 10-1. Wind shield; 10-2. Adjustable shutters; 11. Condenser; 12. Pressure difference sensor; 13. Current sensor; 14. Temperature difference sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See Figure 1-Figure 4 The present embodiment provides an isenthalpic humidification and efficiency enhancement device suitable for a multi-split unit and an air-cooled heat pump, comprising a water supply pipe 1, a water tank 2, an ultrasonic humidifier 3, a fan section 4, a mixing cavity 5, a filter section 6, and a main air supply pipe 7; the fan section 4 is provided with an air inlet, and a filter screen 4-2 is provided at the air inlet; the fan section 4 provides positive pressure to blow toward the mixing cavity 5 through a fan 4-1; the water supply pipe 1 is connected to the water tank 2, and a sewage pipe 2-1 is provided at the lower part of the water tank 2; an ultrasonic humidifier 3 is provided above the water tank 2, and the ultrasonic humidifier 3 is located in the mixing cavity 5, and a plurality of groups of perforated fins 5-1 are provided in the mixing cavity 5, and the outlet of the mixing cavity 5 is connected to the filter section 6, and the filter section 6 filters the wet air and then transports it to the main air supply pipe 7; the two sides of the main air supply pipe 7 are respectively connected to branch air supply pipes 8, and the branch air supply pipes 8 transport the wet air to the surface of the condenser 11.

[0031] The branch air delivery pipe 8 delivers the humid air vertically to the surface of the condenser 11 or to the surface of the condenser 11 on both sides. When the branch air delivery pipe 8 delivers the humid air vertically to the condenser 11, a circular diffuser 9 is arranged under the branch air delivery pipe 8, and the circular diffuser 9 is arranged in a plum blossom shape according to the size of the condenser 11; the circular diffuser 9 is provided with 360-degree air outlets, and the air outlets are not less than 3 layers.

[0032] The ultrasonic humidifier 3 draws the softened water in the water tank 2 and atomizes it. The atomized steam is located in the mixing cavity 5. A plurality of perforated fins 5-1 are arranged inside the mixing cavity 5. The wet steam is fully mixed with the air to perform isenthalpic humidification on the air. The ultrasonic humidifier 3 has an anti-dry burning function. When there is no water in the water tank 2, it can automatically stop working and send out an alarm signal.

[0033] When the branch air pipe 8 transports the humid air from both sides to the surface of the condenser 11, the branch air pipe 8 is provided with an opposite side air outlet 10; the opposite side air outlet 10 is provided with a wind shield 10-1, and when wind comes from the opposite side, the air outlet on this side is closed under the action of the wind shield 10-1, and the air volume of the opposite side air outlet is increased; and the air outlet 10 is provided with an adjustable louver 10-2, which is debugged before the system is installed to ensure that the airflow is evenly distributed on the surface of the condenser.

[0034] The filter section 6 disposed at the outlet of the mixing cavity 5 is provided with a pressure difference sensor mounting hole 6-1 before and after, and the pressure difference sensor 12 is mounted on the pressure difference sensor mounting hole 6-1. When the pressure difference between the front and rear exceeds the limit, an alarm signal is issued, and the filter screen needs to be cleaned.

[0035] The main air pipeline 7 and the branch air pipeline 8 through which the humid air passes are designed with static pressure balance, and the pressure of each branch pipeline is balanced. The main air pipeline 7 and the branch air pipeline 8 through which the humid air passes are circular PVC pipes. The humid air prepared by the humid air preparation section is transported to the condenser fin surface through the main air pipeline 7 and the branch air pipeline 8.

[0036] The utility model proposes two wet air delivery schemes according to the environment in which the condenser is located. In delivery mode 1, the wet air is directly delivered to the surface of the condenser 11 in a vertical direction via the branch pipe 8, which is suitable for an environment with few obstructions on the condenser surface and good installation space; in delivery mode 2, when the branch air pipe 8 delivers the wet air from both sides to the surface of the condenser 11, it is suitable for a situation where the installation space of the condenser is limited or there are obstacles to constructing a direct radiation scheme on the condenser surface.

[0037] A current sensor 13 is installed at the power switch of the condenser 11, and the current sensor 13 is used to monitor the fan opening state of the condenser 11. Temperature probes of a temperature difference sensor 14 are respectively arranged in an outdoor open area and outside the condenser 11; the temperature probes of the temperature difference sensor 14 respectively monitor the ambient temperature of the condenser 11 and the air temperature on the condenser surface.

[0038] The opening and closing of this device is mainly based on the set temperature difference sensor 14 and current sensor 13, and the monitoring signal linkage control. The temperature difference sensor 14 and the current sensor 13 detect that the air temperature on the condenser surface is higher than the ambient temperature and the condenser fan is turned on, and the device is automatically turned off when the current sensor 13 detects that the condenser fan stops rotating; when the temperature difference sensor 14 and the current sensor 13 detect that the condenser fan continues to run, but the air temperature on its outer surface continues to be lower than or equal to the ambient temperature for about 5 minutes, the system can also stop running.

[0039] The above contents are merely examples of the structure of the present utility model. The technical personnel in the relevant technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. An isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps, characterized in that: The invention comprises a water supply pipe (1), a water tank (2), an ultrasonic humidifier (3), a fan section (4), a mixing cavity (5), a filter section (6), and a main air supply pipe (7); the fan section (4) is provided with an air inlet, and the air inlet is provided with a filter screen (4-2); the fan section (4) provides positive pressure through the fan (4-1) to blow air toward the mixing cavity (5); the water supply pipe (1) is connected to the water tank (2); an ultrasonic humidifier (3) is provided above the water tank (2); the ultrasonic humidifier (3) is located in the mixing cavity (5); a plurality of groups of perforated fins (5-1) are provided in the mixing cavity (5); the outlet of the mixing cavity (5) is connected to the filter section (6); the filter section (6) filters the wet air and then transmits it to the main air supply pipe (7); the two sides of the main air supply pipe (7) are respectively connected to branch air supply pipes (8); the branch air supply pipes (8) transmit the wet air to the surface of the condenser (11).

2. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: The branch air delivery pipe (8) delivers the wet air vertically to the surface of the condenser (11) or delivers the wet air to the surface of the condenser (11) on both sides.

3. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: When the branch air delivery pipe (8) vertically delivers the humid air to the condenser (11), a circular diffuser (9) is provided below the branch air delivery pipe (8), and the circular diffuser (9) is arranged in a plum blossom pattern according to the size of the condenser (11); the circular diffuser (9) is provided with 360-degree air outlets, and the number of air outlets is not less than 3 layers.

4. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: When the branch air delivery pipe (8) delivers humid air from both sides to the surface of the condenser (11), the branch air delivery pipe (8) is provided with an opposite side air outlet (10); a wind shield (10-1) is provided at the opposite side air outlet (10); when wind comes from the opposite side, the air outlet on this side is closed under the action of the wind shield (10-1), and the air volume at the opposite side air outlet is increased; and the air outlet (10) is provided with an adjustable louver (10-2), and the system is debugged before installation to ensure that the airflow is evenly distributed on the surface of the condenser.

5. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: Pressure difference sensor mounting holes (6-1) are arranged before and after the filter section (6) arranged at the outlet of the mixing cavity (5), and the pressure difference sensor mounting hole (6-1) is mounted on the pressure difference sensor mounting hole (6-1).

6. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: A sewage pipe (2-1) is arranged at the lower part of the water tank (2).

7. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: The main gas pipeline (7) and the branch gas pipeline (8) through which the humid air passes are both designed to be statically pressure balanced, and the pressure of each branch pipeline is balanced.

8. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: The main air supply pipe (7) and the branch air supply pipe (8) through which the moist air passes are circular PVC pipes.

9. The isenthalpic humidification and efficiency enhancement device suitable for multi-split units and air-cooled heat pumps according to claim 1, characterized in that: A current sensor (13) is installed at the power switch of the condenser (11). The current sensor (13) is used to monitor the fan on state of the condenser (11). Temperature probes of a temperature difference sensor (14) are respectively arranged in an open outdoor area and outside the condenser (11); the temperature probes of the temperature difference sensor (14) respectively monitor the ambient temperature at the location of the condenser (11) and the air temperature on the surface of the condenser.

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