Marine cold air prevention fresh air adjusting system
By installing temperature sensors at the fresh air inlet and return air outlet of the air conditioner, and adding humidification and heat replenishment pipe groups after the heat exchanger, the fresh air and return air are preheated with steam. This solves the problems of coil freezing and substandard air supply temperature caused by residual refrigerant water in cold environments, and achieves stability of air supply temperature and improvement of heating effect.
Patent Information
- Application Number
- CN202423121106.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing air conditioners are prone to coil freezing damage in cold environments due to residual refrigerant water. Low fresh air temperature also affects the supply air temperature, resulting in poor heating performance.
Temperature sensors are installed at the fresh air inlet and return air inlet of the air conditioner, and an antifreeze temperature sensor is added after the heat exchanger. Combined with the humidification pipe and the heat replenishment pipe group, the fresh air and return air are preheated by steam regulation to prevent icing and improve the stability of the supply air temperature.
It effectively prevents the cold air from affecting the fresh air supply, ensures stable air supply temperature, prevents the coil from freezing, and improves the heating effect.
Smart Images
Figure CN223803769U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fresh air system, specifically to a marine cold air prevention fresh air adjusting system. BACKGROUND
[0002] For most air conditioner systems used in winter or cold environment, the problem of anti-freezing needs to be considered, because after refrigeration is completed, refrigerant water inevitably remains in the coil and cannot be completely discharged. When the inlet air temperature is too low, the water in the coil will freeze, causing the coil to be damaged, and when the fresh air temperature is too low, the final supply air temperature of the air conditioner system may not reach the set temperature, and the heating effect is poor. SUMMARY
[0003] The utility model provides a kind of marine cold air prevention fresh air adjusting system that can effectively prevent fresh air cold air from affecting air conditioning adjustment, ensure fresh air adjustment and the stability of supply air temperature.
[0004] The technical scheme adopted by the utility model is: a marine cold air prevention fresh air adjusting system, comprising a fresh air adjusting valve arranged at the fresh air inlet of an air conditioner and a return air adjusting valve arranged at the return air inlet, temperature sensors and flow sensors are arranged in the fresh air inlet and the return air inlet, characterized in that: an anti-freezing temperature sensor is arranged after the heat exchanger of the air conditioner, a flow adjusting valve is arranged on the heat medium inlet pipe of the heat exchanger, the heat medium inlet pipe is connected to the fresh air coil or jacket on the fresh air inlet before being connected to the heat exchanger, and the heat medium outlet pipe of the heat exchanger is connected to the return air coil or jacket on the return air inlet after passing through the bottom of the water receiving tray under the heat exchanger.
[0005] A humidifying pipe group is arranged behind the anti-freezing temperature sensor.
[0006] The humidifying pipe group and the heat supplement pipe group each comprise a plurality of humidifying pipes, and a plurality of atomizing nozzles are arranged on the humidifying pipes.
[0007] The humidifying pipe group is connected to an external steam inlet pipe and an external steam outlet pipe.
[0008] A heat supplement pipe group is further arranged behind the anti-freezing temperature sensor.
[0009] The heat supplement pipe group comprises a plurality of heat supplement pipes, and the plurality of humidifying pipes and the plurality of heat supplement pipes are arranged in a crisscross manner.
[0010] The humidifying pipe group and the heat supplement pipe group are connected to the external steam inlet pipe and the external steam outlet pipe through a three-way switch valve.
[0011] A steam adjusting valve is arranged on the steam inlet pipe.
[0012] The steam inlet pipe is first connected to the bottom of the water receiving tray in the air conditioner.
[0013] The utility model discloses a heat exchanger's after anti -freezing temperature sensor monitor the mixed wind or fresh air after heat exchange, when temperature does not reach set value, control flow regulating valve increase the heat medium inlet pipe flow of heat exchanger's heat medium quantity, and the heat medium flows out after heat exchange in the heat exchanger, and the heat medium flows in when passing through the fresh air coil or the jacket of fresh air port, and the temperature of the fresh air of lower temperature is primarily preheated, and the return air coil or the jacket of return air port is passed through when the heat medium flows out, and the return air is primarily preheated, thereby improving the mixture of fresh air and return air, and the temperature after the subsequent heat exchanger is convenient to improve, thereby effectively controlling the stable temperature of supply air, when needing the air conditioner to send out the air volume demand change, can combine the control opening of fresh air and return air regulating valve, and still can control the temperature of sending out when fresh air reduces and return air increases, the steam inlet pipe of humidification pipe group and supplementary heat pipe group is buried in the water receiving tray, and the heat medium outlet pipe is sent back to the air coil or the jacket in the water receiving tray after absorbing heat, which helps to improve the return air preheating effect, and the steam inlet pipe heats the condensate in the water receiving tray, effectively prevents the water receiving tray from icing, and comprehensively ensures the stable heat exchange performance and the stable use of air conditioner. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the structural schematic diagram of the utility model.
[0015] In the drawing: air conditioner 1, fresh air port 2, fresh air jacket 3, fresh air regulating valve 4, fresh air temperature sensor 5, fresh air flow sensor 6, return air port 7, return air jacket 8, return air regulating valve 9, return air temperature sensor 10, return air flow sensor 11, heat exchanger 12, anti -freezing temperature sensor 13, water receiving tray 14, heat medium inlet pipe 15, flow regulating valve 16, heat medium outlet pipe 17, humidification pipe 18, supplementary heat pipe 19, inlet three -way switch valve 20, outlet three -way switch valve 21, steam inlet pipe 22, steam outlet pipe 23, steam regulating valve 24. DETAILED DESCRIPTION
[0016] The following is further described with reference to the drawings.
[0017] Figure 1The application discloses a cold air and freeze prevention fresh air adjusting system for a ship. The system is characterized in that a fresh air jacket 3 is arranged outside a fresh air outlet 2 of an air conditioner 1, a fresh air adjusting valve 4 is arranged on the fresh air outlet 2, a fresh air temperature sensor 5 and a fresh air flow sensor 6 are arranged in the fresh air outlet 2, a return air jacket 8 is arranged outside a return air outlet 7 of the air conditioner 1, a return air adjusting valve 9 is arranged on the return air outlet 7, a return air temperature sensor 10 and a return air flow sensor 11 are arranged in the return air outlet 7, a freeze prevention temperature sensor 13 is arranged behind a heat exchanger 12 of the air conditioner 1, a plurality of humidifying pipes 18 provided with atomizing nozzles and a plurality of heat supplement pipes 19 are arranged behind the freeze prevention temperature sensor 13 in a cross mode, a water receiving tray 14 is arranged below the heat exchanger 12, the humidifying pipes 18 and the heat supplement pipes 19, a flow adjusting valve 16 is arranged on a heat medium inlet pipe 15 of the heat exchanger 13, the heat medium inlet pipe 15 is connected to the fresh air jacket 3 on the fresh air outlet before being connected to the heat exchanger, a heat medium outlet pipe 17 of the heat exchanger is connected to the return air jacket 8 on the return air outlet after passing through the bottom of the water receiving tray 14 below the heat exchanger before returning, the plurality of humidifying pipes and the plurality of heat supplement pipes are connected to a steam inlet pipe 22 through an air inlet three-way switch valve 20, a steam adjusting valve 24 is arranged on the steam inlet pipe 22, the plurality of humidifying pipes and the plurality of heat supplement pipes are connected to a steam outlet pipe 23 through an air outlet three-way switch valve 21, and the steam inlet pipe 22 passes through the bottom of the water receiving tray 14 before being connected to the air inlet three-way switch valve 20.
[0018] In the embodiment, all the valves and the sensors are controlled by a controller, a heating temperature is set, the opening degree of the valve, the heat medium flow and the steam flow are controlled, and the cold air and freeze prevention fresh air are comprehensively realized.
[0019] In the embodiment, the air inlet three-way switch valve is arranged outside the air conditioner, the inlet pipe after passing through the air inlet three-way switch valve has a horizontal section passing through the bottom of the water receiving tray 14.
Claims
1. A cold air prevention fresh air conditioning system for a ship, comprising a fresh air conditioning valve arranged at a fresh air inlet of an air conditioner and a return air conditioning valve arranged at a return air inlet, temperature sensors and flow sensors being arranged in the fresh air inlet and the return air inlet, characterized in that: The anti-freezing temperature sensor is arranged behind the heat exchanger of the air conditioner, a flow regulating valve is arranged on the heat medium inlet pipe of the heat exchanger, the heat medium inlet pipe is connected with the fresh air coil or jacket on the fresh air outlet before being connected with the heat exchanger, and the heat medium outlet pipe of the heat exchanger is connected with the return air coil or jacket on the return air outlet after passing through the bottom of the water receiving plate under the heat exchanger.
2. The cold air prevention and fresh air conditioning system for a ship according to claim 1, characterized in that: A humidifying pipe group is arranged behind the anti-freezing temperature sensor.
3. A cold air prevention fresh air conditioning system for a ship according to claim 2, characterized in that: The humidifying pipe group and the heat supplement pipe group each include a plurality of humidifying pipes, and a plurality of atomizing nozzles are arranged on the humidifying pipes.
4. A cold air prevention fresh air conditioning system for a ship according to claim 2 or 3, characterized in that: The humidifying pipe group is connected with an external steam inlet pipe and an external steam outlet pipe.
5. The cold air prevention and fresh air conditioning system for ships according to claim 1 or 2, characterized in that: A heat supplement pipe group is arranged behind the anti-freezing temperature sensor.
6. A cold air prevention fresh air conditioning system for a ship according to claim 5, characterized in that: The heat supplement pipe group includes a plurality of heat supplement pipes, and the plurality of humidifying pipes and the plurality of heat supplement pipes are arranged in a cross manner.
7. A cold air prevention fresh air conditioning system for a ship according to claim 5, characterized in that: The humidifying pipe group and the heat supplement pipe group are connected with the external steam inlet pipe and the external steam outlet pipe through a three-way switch valve.
8. The cold air prevention and fresh air conditioning system for a ship according to claim 4, characterized in that: A steam regulating valve is arranged on the steam inlet pipe.
9. A cold air prevention fresh air conditioning system for a ship according to claim 7, characterized in that: A steam regulating valve is arranged on the steam inlet pipe.
10. A cold air prevention fresh air conditioning system for a ship according to claim 8 or 9, characterized in that: The steam inlet pipe is connected with the air conditioner and first passes through the bottom of the water receiving plate.