Ceiling type cold storage compressor ventilation and heat dissipation device

Abstract

The utility model discloses a kind of ceiling type refrigeration house compressor ventilation heat dissipation device, comprising: gas collection port, fan, air pipe, check valve and exhaust port;Gas collection port is set in ceiling, and close to the rear end surface of refrigeration house compressor in ceiling;According to exhaust direction, gas collection port is connected with fan by air pipe, check valve is set between fan and exhaust port, the air pipe between check valve and exhaust port is provided with elbow section, exhaust port is set in ceiling same horizontal place;Refrigeration house compressor is communicated with air inlet by filter, air inlet is in ceiling same horizontal place.Through the technical scheme of the utility model, the efficient and stable operation of refrigeration house can be guaranteed, the temperature of the area where refrigeration house compressor is located in the ceiling space is effectively reduced, the overheat protection of refrigeration house compressor is avoided, the purpose of energy saving and consumption reduction is achieved, and kitchen fume is prevented from invading into the ceiling space.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a ceiling-mounted cold storage compressor ventilation and heat dissipation device. Background Technology

[0002] Cold storage facilities are crucial for food storage in canteens, and their operational efficiency and energy consumption directly affect the quality of stored goods and operating costs. The compressor, as the core component of the cold storage refrigeration system, directly impacts refrigeration efficiency, energy consumption, system stability, and lifespan through its heat dissipation performance.

[0003] For cold storage facilities in office building canteens, the compressor is often placed in the ceiling above the cold storage, which cannot directly ventilate and exchange heat with the outside. In the hot and humid summer, the temperature at the compressor becomes too high, triggering the compressor overheat protection, resulting in the cold storage temperature not meeting the standard and increasing the energy consumption of the cold storage operation. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a ceiling-mounted cold storage compressor ventilation and heat dissipation device. Through an air collection port located near the cold storage compressor, the device effectively collects the compressor's heat under the drive of a fan and transfers it to the exhaust port via a duct. This forces the heat from the cold storage compressor, which cannot be exhausted from the ceiling, to be expelled through heat exchange, ensuring efficient and stable operation of the cold storage. Simultaneously, it effectively utilizes the natural heat dissipation capacity of the ceiling space, preventing ineffective fan operation and effectively reducing the temperature in the area where the cold storage compressor is located within the ceiling space. This prevents the cold storage compressor from triggering overheat protection, achieving energy saving and consumption reduction. Furthermore, a check valve and filter prevent kitchen fumes from entering the ceiling space.

[0005] To achieve the above objectives, this utility model provides a ceiling-mounted cold storage compressor ventilation and heat dissipation device, including: an air inlet, a fan, an air duct, a check valve, and an exhaust outlet;

[0006] The air collection port is located inside the suspended ceiling and is close to the rear end face of the cold storage compressor inside the suspended ceiling;

[0007] According to the exhaust direction, the air collection port is connected to the fan through the air duct, the check valve is set between the fan and the exhaust port, the air duct between the check valve and the exhaust port is provided with a bend, and the exhaust port is set at the same level as the ceiling.

[0008] The cold storage compressor is connected to the air inlet through a filter, and the air inlet is at the same level as the ceiling.

[0009] In the above technical solution, preferably, the air collection port adopts a frustum structure with front and rear connections, the large-area port of the air collection port faces the rear end face of the cold storage compressor, and the small-area port is connected to one end of the fan.

[0010] In the above technical solution, preferably, the width of the inlet end of the air collection port is greater than the width of the cold storage compressor, and the height is 1.15 to 1.2 times the height of the cold storage compressor. The cross-sectional area of ​​the outlet end of the air collection port is such that the dynamic pressure of the air velocity generated by the cold storage compressor in the air duct during normal heat dissipation is greater than or equal to the opening pressure of the check valve.

[0011] In the above technical solution, preferably, the check valve is an axial flow check valve or a wafer check valve, and the opening pressure of the check valve is 0.01 to 0.08 MPa.

[0012] In the above technical solution, preferably, a temperature, humidity and pressure probe is provided between the air collection port and the fan to monitor the exhaust air temperature, humidity and pressure in the air duct;

[0013] Temperature, humidity and pressure probes are installed at both ends of the filter to monitor the inlet air temperature and the pressure loss of the filter.

[0014] A temperature probe is installed on the top of the suspended ceiling above the cold storage compressor to monitor the ambient temperature at the top of the ceiling.

[0015] In the above technical solution, preferably, when the temperature probe detects that the temperature exceeds a preset critical temperature, the fan is started to discharge the heat from the cold storage compressor.

[0016] In the above technical solution, preferably, both the exhaust port and the air inlet are louvered air vents.

[0017] In the above technical solution, preferably, the fan is a variable frequency explosion-proof fan.

[0018] In the above technical solution, preferably, the filter is a pre-filter.

[0019] In the above technical solution, preferably, the air duct is a rectangular air duct.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the air collection port close to the cold storage compressor, the heat of the compressor is effectively collected under the drive of the fan and transferred to the exhaust port through the air duct, thereby forcibly expelling the heat of the cold storage compressor that cannot be discharged from the ceiling, ensuring the efficient and stable operation of the cold storage. At the same time, it can effectively utilize the natural heat dissipation capacity of the ceiling space, avoid the ineffective operation of the fan, effectively reduce the temperature of the area where the cold storage compressor is located in the ceiling space, avoid triggering the overheat protection of the cold storage compressor, and achieve the purpose of energy saving and consumption reduction. The check valve and filter can prevent kitchen fumes from entering the ceiling space. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of a ceiling-mounted cold storage compressor ventilation and heat dissipation device disclosed in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the exhaust device structure of a ceiling-mounted cold storage compressor ventilation and heat dissipation device disclosed in one embodiment of the present invention.

[0023] In the diagram, the correspondence between the components and the reference numerals is as follows:

[0024] 1. Air inlet; 2. Temperature, humidity and pressure probes; 3. Fan; 4. Check valve; 5. Air duct; 6. Exhaust outlet; 7. Cold storage compressor; 8. Filter; 9. Air inlet; 10. Temperature probe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] The present invention will now be described in further detail with reference to the accompanying drawings:

[0027] like Figure 1 and Figure 2 As shown, a ceiling-mounted cold storage compressor ventilation and heat dissipation device according to the present invention includes: an air collection port 1, a fan 3, an air duct 5, a check valve 4, and an exhaust port 6;

[0028] The air collection port 1 is located inside the ceiling and close to the rear end face of the cold storage compressor 7 inside the ceiling;

[0029] According to the exhaust direction, the air collection port 1 is connected to the fan 3 through the air duct 5. The check valve 4 is set between the fan 3 and the exhaust port 6. The air duct 5 between the check valve 4 and the exhaust port 6 is set with a bend. The exhaust port 6 is set at the same level as the ceiling.

[0030] The cold storage compressor 7 is connected to the air inlet 9 through the filter 8, and the air inlet 9 is at the same level as the ceiling.

[0031] In this embodiment, the heat from the compressor is effectively collected by the air collection port 1, which is close to the cold storage compressor 7, under the drive of the fan 3, and transferred to the exhaust port 6 through the air duct 5. This forces the heat from the cold storage compressor 7, which cannot be discharged from the ceiling, to be discharged from the ceiling, ensuring the efficient and stable operation of the cold storage. At the same time, it can effectively utilize the natural heat dissipation capacity of the ceiling space, avoid the ineffective operation of the fan 3, effectively reduce the temperature of the area where the cold storage compressor 7 is located in the ceiling space, avoid triggering the overheat protection of the cold storage compressor 7, and achieve the purpose of energy saving and consumption reduction. The check valve 4 and the filter 8 can prevent kitchen fumes from entering the ceiling space.

[0032] Specifically, when the cooling fan speed of the cold storage compressor 7 is low, the pressure at the check valve 4 in the air duct 5 through the air inlet 1 is low, preventing the check valve 4 from opening, and heat is dissipated naturally through the ceiling environment; due to the low density of hot air, heat accumulates at the top of the ceiling. When the cooling fan speed of the cold storage compressor 7 is sufficient to overcome the local resistance of the check valve 4, some heat is discharged to the outside of the ceiling through the air duct 5, while some heat continues to accumulate at the top of the ceiling. The cold air above the compressor air inlet duct 5 will dilute the heat at the top of the ceiling; when the temperature above the compressor is higher than the critical temperature, the fan 3 located in the exhaust duct 5 starts, realizing the rapid discharge of heat from the compressor.

[0033] This heat dissipation device can effectively utilize the natural heat dissipation capacity of the ceiling space, avoid the ineffective operation of the fan 3, effectively reduce the temperature of the cold storage compressor 7 in the ceiling space, and prevent the overheat protection of the cold storage compressor 7 from being triggered.

[0034] like Figure 2 As shown, in the above embodiment, preferably, the gas collection port 1 adopts a frustum structure with front and rear connections. The large-area port of the gas collection port 1 faces the rear end face of the cold storage compressor 7, and the small-area port is connected to one end of the fan 3. The large-area gas collection port 1 can effectively collect gas.

[0035] In the above embodiment, preferably, the width of the inlet end of the air collecting port 1 is greater than the width of the cold storage compressor 7, and the height is 1.15 to 1.2 times the height of the cold storage compressor 7. The cross-sectional area of ​​the outlet end of the air collecting port 1 is such that the dynamic pressure of the air velocity generated by the cold storage compressor 7 in the air duct 5 during normal heat dissipation is greater than or equal to the opening pressure of the check valve 4. Specifically, the cross-sectional area can be calculated using Bernoulli's equation.

[0036] Specifically, the variable diameter design can further accelerate the airflow generated by the compressor, making full use of the kinetic energy of the compressor fan.

[0037] In the above embodiment, the air collection port 1 and the fan 3 are horizontally connected through the air duct 5. The bend section of the air duct 5 after the check valve 4 adopts a 90° bend angle, and the horizontal pipe bends into a vertical pipe and is discharged from the ceiling through the exhaust port 6.

[0038] In the above embodiments, preferably, the check valve 4 is an axial flow check valve or a wafer check valve, and the opening pressure of the check valve 4 is 0.01 to 0.08 MPa, which is reasonably selected according to the diameter of the air duct 5.

[0039] In the above embodiment, preferably, a temperature, humidity and pressure probe 2 is provided between the air collection port 1 and the fan 3 to monitor the exhaust air temperature, humidity and pressure in the air duct;

[0040] Temperature, humidity and pressure probes 2 are installed at both ends of the filter 8 to monitor the inlet air temperature and the pressure loss of the filter 8.

[0041] A temperature probe 10 is installed on the top of the suspended ceiling above the cold storage compressor 7 to monitor the ambient temperature at the top of the suspended ceiling.

[0042] Specifically, the temperature, humidity, and pressure probe 2, positioned between the air inlet and the fan 3, monitors the compressor exhaust temperature and pressure, and calculates the gas flow rate. If the flow rate is too low and the temperature is too high, a temperature over-limit warning will be triggered, and the fan 3 will start. The temperature, humidity, and pressure probe 2, positioned before and after the filter 8, monitors the inlet air temperature and the pressure loss of the filter 8. If the pressure loss of the filter 8 is high, a filter 8 blockage warning will be triggered, prompting the replacement or cleaning of the filter 8.

[0043] The fan 3 is started and stopped by monitoring the temperature of the ceiling top, compressor exhaust, and air inlet 9, and setting a critical temperature. When the critical temperature is reached, the fan 3 frequency is set accordingly for different temperatures, so as to achieve the purpose of energy saving and consumption reduction of the fan 3.

[0044] In the above embodiment, preferably, when the temperature probe 10 detects that the temperature exceeds the preset critical temperature, the fan 3 is started to quickly remove the heat from the cold storage compressor 7.

[0045] In the above embodiments, preferably, both the exhaust port 6 and the air inlet 9 are louvered air outlets to reduce the local resistance of the device.

[0046] In the above embodiments, preferably, the fan 3 is a variable frequency explosion-proof fan 3. Specifically, cold storage is generally located in the kitchen of a canteen, so the fan 3 is generally an explosion-proof fan 3 to prevent accidents such as fires. Preferably, a variable frequency explosion-proof fan 3 can be used, and the frequency of the fan 3 can be set according to different ceiling temperatures, compressor exhaust temperatures, and air inlet temperatures, thereby achieving energy saving and consumption reduction.

[0047] In the above embodiments, preferably, the filter 8 is a pre-filter 8 to prevent kitchen fumes from entering the cold storage compressor 7 and to ensure the normal operation of the compressor.

[0048] In the above embodiments, preferably, the air duct 5 is a rectangular air duct 5, which facilitates the arrangement in the ceiling environment.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ceiling-mounted cold storage compressor ventilation and heat dissipation device, characterized in that, include: Air inlet, fan, duct, check valve and exhaust outlet; The air collection port is located inside the suspended ceiling and is close to the rear end face of the cold storage compressor inside the suspended ceiling; According to the exhaust direction, the air collection port is connected to the fan through the air duct, the check valve is set between the fan and the exhaust port, the air duct between the check valve and the exhaust port is provided with a bend, and the exhaust port is set at the same level as the ceiling. The cold storage compressor is connected to the air inlet through a filter, and the air inlet is at the same level as the ceiling.

2. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, The air collection port adopts a frustum structure with the front and rear connected. The large-area port of the air collection port faces the rear end of the cold storage compressor, and the small-area port is connected to one end of the fan.

3. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 2, characterized in that, The width of the inlet end of the air collection port is greater than the width of the cold storage compressor, and the height is 1.15 to 1.2 times the height of the cold storage compressor. The cross-sectional area of ​​the outlet end of the air collection port is such that the dynamic pressure of the air velocity generated by the cold storage compressor in the air duct during normal heat dissipation is greater than or equal to the opening pressure of the check valve.

4. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1 or 3, characterized in that, The check valve is an axial flow check valve or a wafer check valve, and the opening pressure of the check valve is 0.01 to 0.08 MPa.

5. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, A temperature, humidity and pressure probe is installed between the air collection port and the fan to monitor the exhaust air temperature, humidity and pressure in the air duct; Temperature, humidity and pressure probes are installed at both ends of the filter to monitor the inlet air temperature and the pressure loss of the filter. A temperature probe is installed on the top of the suspended ceiling above the cold storage compressor to monitor the ambient temperature at the top of the ceiling.

6. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 5, characterized in that, When the temperature probe detects that the temperature exceeds the preset critical temperature, the fan starts to expel the heat from the cold storage compressor.

7. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, Both the exhaust vent and the air inlet are louvered vents.

8. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, The fan is a variable frequency explosion-proof fan.

9. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, The filter is a pre-filter.

10. The ceiling-mounted cold storage compressor ventilation and heat dissipation device according to claim 1, characterized in that, The air duct is a rectangular air duct.

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