Low-noise fan speed-adjustable compression and condensation box type machine

Abstract

The utility model discloses a low-noise fan speed-adjustable compression condensation box type unit which comprises a machine box, the machine box comprises a first machine box chamber and a second machine box chamber, a condensation pipe and a fan are arranged in the first machine box chamber, a scroll compressor, a liquid storage device and a fan speed regulator are arranged in the second machine box chamber, and the fan speed regulator is connected with an outlet of the condensation pipe and a motor of the fan. The fan is aligned with the condensation pipe. The fan speed regulator judges whether the rotating speed of the fan needs to be adjusted or not by sensing the change of the condensing pressure at the outlet of the condensing pipe. Condensing pressure and condensing temperature are increased, and the rotating speed of the fan is increased, so that the condensing pipe is cooled. Condensing pressure is reduced, condensing temperature is reduced, and the rotating speed of the fan is reduced, so that energy consumption is reduced while the condensing temperature of the condensing pipe is kept. The adjustment is continuous and can be adjusted in real time according to system requirements so as to ensure the optimal cooling effect and energy efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of refrigeration, and in particular relates to a low-noise fan speed-adjustable compression condensing box-type unit. Background Art

[0002] The compression condensing unit is a combination of one or more refrigeration compressors, oil separators, condensers, liquid receivers (when necessary), drying filters and accessories. It is used to compress and liquefy refrigerants and is commonly used in cold storage.

[0003] When a compression condensing unit is operating, if the condensing temperature of the condenser is too high, the cooling effect will be affected. Therefore, existing technologies often use a fan to increase the air flow rate through the condenser, thereby improving the condenser's heat transfer coefficient. However, existing fans cannot adjust their speed and thus cannot adjust the condenser's cooling capacity according to actual needs, resulting in energy waste and low energy efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a low-noise fan speed-adjustable compression condensing box unit, which detects the change in the condenser pipe outlet pressure through the fan speed regulator and adjusts the fan speed accordingly. This adjustment is continuous and can be adjusted in real time according to system needs to ensure the best cooling effect and energy efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A low-noise fan speed-adjustable compression condensing box-type unit includes a chassis, which includes a first chassis chamber and a second chassis chamber. The first chassis chamber is provided with a condenser and a fan, and the second chassis chamber is provided with a scroll compressor, a liquid storage device and a fan speed regulator. The fan speed regulator is connected to the outlet of the condenser and the motor of the fan, and the fan is aligned with the condenser.

[0007] The fan speed regulator senses changes in the condensing pressure at the condenser tube outlet to determine whether fan speed adjustment is necessary. As condensing pressure increases, the condensing temperature rises, and the fan speed increases, cooling the condenser tube. As condensing pressure decreases, the condensing temperature drops, and the fan speed decreases, maintaining the condensing temperature and reducing energy consumption. This regulation is continuous and can be adjusted in real time based on system needs to ensure optimal cooling and energy efficiency.

[0008] By providing the first chassis chamber and the second chassis chamber, the scroll compressor with heat generated by the outer shell is separated from the condenser, thereby preventing the heat emitted by the scroll compressor from affecting the condensation effect of the condenser.

[0009] Furthermore, the fan speed regulator is provided with a built-in pressure sensor.

[0010] The built-in pressure sensor constantly detects the condensing pressure at the condenser outlet and converts the pressure signal into an electrical signal to control the output voltage of the fan speed regulator.

[0011] Furthermore, the pressure sensor converts the pressure signal into an electrical signal and transmits it to the fan speed regulator. The fan speed regulator adjusts the output voltage to the motor after receiving the electrical signal, thereby adjusting the speed of the motor.

[0012] Based on the changes in the pressure signal, the fan speed regulator adjusts the output voltage, thereby changing the speed of the fan motor connected to the speed regulator.

[0013] Furthermore, the condenser is L-shaped, and the condenser is close to the back plate and the outer plate of the first chassis chamber, and both the back plate and the outer plate are provided with grids.

[0014] The L-shaped condenser has a larger heat dissipation area and better heat dissipation effect.

[0015] Furthermore, the inlet and outlet of the condenser extend from the first chassis chamber to the second chassis chamber, the inlet of the condenser is connected to the scroll compressor, and the outlet of the condenser is connected to the liquid reservoir.

[0016] The refrigerant flows from the scroll compressor into the condenser inlet, is condensed in the condenser, and flows out from the condenser outlet to the liquid receiver.

[0017] Furthermore, honeycomb sound-absorbing cotton is affixed to the four inner walls of the second chassis chamber.

[0018] The honeycomb sound-absorbing cotton installed in the second chassis room effectively reduces the operating noise of the unit and sheet metal resonance.

[0019] Furthermore, the second chassis chamber is provided with a high and low pressure controller, a drying filter and a sight glass. The high and low pressure controller is connected to the scroll compressor, and the drying filter and the sight glass are connected to the liquid reservoir and the condenser.

[0020] The high and low pressure controllers detect the pressure of the scroll compressor, the drying filter removes moisture, acid and solid impurities from the refrigerant to prevent abrasive impurities from forming in the refrigeration system, and the sight glass is used to check the water content in the refrigerant and, secondly, to determine whether the refrigerant is sufficient.

[0021] Furthermore, an emergency stop switch is provided on the side of the second chassis chamber, which is connected to the scroll compressor. The emergency stop switch ensures that the equipment can cut off the power supply in time in abnormal situations to protect key parts such as the compressor.

[0022] The parts are not damaged.

[0023] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0024] 1. The fan speed regulator senses changes in the condensing pressure at the condenser tube outlet to determine whether fan speed adjustment is necessary. As condensing pressure increases, the condensing temperature rises, and the fan speed increases, thereby cooling the condenser tube. As condensing pressure decreases, the condensing temperature drops, and the fan speed decreases, maintaining the condensing temperature and reducing energy consumption. This regulation is continuous and can be adjusted in real time based on system needs to ensure optimal cooling and energy efficiency.

[0025] 2. By setting up the first chassis chamber and the second chassis chamber, the scroll compressor with heat generated by the outer shell is separated from the condenser, preventing the heat emitted by the scroll compressor from affecting the condensation effect of the condenser.

[0026] 3. The honeycomb sound-absorbing cotton installed in the second chassis room effectively reduces the operating noise of the unit and sheet metal resonance.

[0027] 4. The fan motor can use a 6-stage low-speed motor, and the fan noise is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 is a structural diagram of a low-noise fan speed-adjustable compression condensing box-type unit.

[0030] FIG2 is a schematic diagram of the structure of the second chassis compartment in FIG1 after the panel is removed.

[0031] FIG3 is a structural diagram of FIG1 from another angle.

[0032] FIG4 is a schematic structural diagram of the second chassis chamber in FIG3 after the back panel is disassembled.

[0033] Figure 5 is a top view of the low-noise fan speed-adjustable compression condensing box-type unit after the top plate is removed. DETAILED DESCRIPTION

[0034] The low-noise, fan-adjustable-speed compression-condensing box-type unit shown in Figures 1 to 5 includes a chassis comprising a first chassis chamber 1 and a second chassis chamber 2. The first chassis chamber 1 houses a condenser 3 and a fan 4, while the second chassis chamber 2 houses a scroll compressor 5, a liquid reservoir 6, and a fan speed regulator 7. The provision of the first and second chassis chambers 1 and 2 separates the scroll compressor 5, whose casing generates heat, from the condenser 3, preventing the heat generated by the scroll compressor 5 from affecting the condensing effect of the condenser 3.

[0035] Fan speed regulator 7 connects the outlet of condenser tube 3 to motor 8 of fan 4, with fan 4 aligned with condenser tube 3. Fan speed regulator 7 has a built-in pressure sensor (not shown), which converts pressure signals into electrical signals and transmits them to fan speed regulator 7. Fan speed regulator 7 receives the electrical signals and adjusts the output voltage to motor 8, thereby adjusting the speed of motor 8.

[0036] The condenser 3 is L-shaped and is close to the back plate 101 and the outer plate 102 of the first chassis chamber 1. The back plate 101 and the outer plate 102 are both provided with grids 103. The L-shaped condenser 3 has a large heat dissipation area and a good heat dissipation effect.

[0037] The inlet 301 and outlet 302 of the condenser 3 extend from the first housing chamber 1 to the second housing chamber 2. The inlet 301 of the condenser 3 is connected to the scroll compressor 5, and the outlet 302 of the condenser 3 is connected to the liquid accumulator 6. Refrigerant flows from the scroll compressor 5 into the inlet 301 of the condenser 3, condenses in the condenser 3, and then flows out of the outlet 302 of the condenser 3 to the liquid accumulator 6.

[0038] The inner walls of the second chassis chamber 2 are all covered with honeycomb sound-absorbing cotton 9. The honeycomb sound-absorbing cotton 9 provided in the second chassis chamber 2 effectively reduces the operating noise of the unit and the resonance of the sheet metal.

[0039] Second cabinet compartment 2 houses high and low pressure controllers 10, a filter drier 11, and a sight glass 12. The high and low pressure controllers 10 are connected to the scroll compressor 5, while the filter drier 11 and sight glass 12 connect to the liquid reservoir 6 and condenser 3. The high and low pressure controllers 10 monitor the pressure of the scroll compressor 5. The filter drier 11 removes moisture, acid, and solid impurities from the refrigerant, preventing abrasive impurities from forming in the refrigeration system. The sight glass 12 is used to check the water content of the refrigerant and, secondly, to determine whether the refrigerant is sufficient.

[0040] An emergency stop switch 13 is provided on the outside of the side of the second chassis chamber 2, and the emergency stop switch 13 is connected to the scroll compressor 5. The emergency stop switch 13 ensures that the equipment can cut off the power supply in time under abnormal circumstances to protect key components such as the compressor from damage.

[0041] The pressure sensor built into fan speed regulator 7 constantly monitors changes in condensing pressure. When fan speed regulator 7 detects an increase in condensing pressure and condensing temperature, fan 4 speed increases, thereby cooling condenser tube 3. When fan speed regulator 7 detects a decrease in condensing pressure and condensing temperature, fan 4 speed decreases, thereby maintaining the condensing temperature of condenser tube 3 and reducing energy consumption.

[0042] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A low-noise fan speed-adjustable compression condensing box-type unit, including a box, characterized by: The chassis includes a first chassis chamber and a second chassis chamber. The first chassis chamber is provided with a condenser and a fan. The second chassis chamber is provided with a scroll compressor, a liquid storage tank and a fan speed regulator. The fan speed regulator connects the outlet of the condenser and the motor of the fan, and the fan is aligned with the condenser.

2. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized in that: The fan speed regulator is provided with a built-in pressure sensor.

3. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 2 is characterized in that: The pressure sensor converts the pressure signal into an electrical signal and transmits it to the fan speed regulator. The fan speed regulator adjusts the output voltage to the motor upon receiving the electrical signal, thereby adjusting the rotational speed of the motor.

4. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized by: The condenser is L-shaped and is close to the back plate and the outer plate of the first chassis chamber. The back plate and the outer plate are both provided with grids.

5. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized in that: An inlet and an outlet of the condenser pipe extend from the first cabinet chamber to the second cabinet chamber, the inlet of the condenser pipe is connected to the scroll compressor, and the outlet of the condenser pipe is connected to the liquid reservoir.

6. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized by: The inner walls of the second chassis chamber are all covered with honeycomb sound-absorbing cotton.

7. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized by: The second chassis chamber is provided with a high and low pressure controller, a drying filter and a sight glass. The high and low pressure controller is connected to the scroll compressor. The drying filter and the sight glass are connected to the liquid reservoir and the condenser.

8. The low-noise fan speed-adjustable compression condensing box-type unit according to claim 1 is characterized by: An emergency stop switch is provided on the outside of the side of the second chassis chamber, and the emergency stop switch is connected to the scroll compressor.

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