CN-224230409-U - Low-filling brine machine set

Abstract

The utility model provides a low-filling brine machine set which comprises a bottom frame, a compressor with an oil separator, a plate shell condenser, a plate shell evaporator, a high-pressure floating ball, a plate shell oil cooler and an electric control assembly. The compressor, the heat exchanger and the electric control component are integrated on the underframe, the flow of the refrigerant is dynamically regulated through the high-pressure floating ball, and the plate-shell type heat exchanger adopts a staggered runner design, so that the filling quantity is obviously reduced. Compared with the prior art, the utility model reduces the refrigerant filling amount by 30-40%, reduces the volume by 25%, improves the energy efficiency by 15-20%, and is suitable for industrial cooling and other scenes.

Inventors

• HUANG YI
• HUANG SHITING
• ZHANG MINGMING

Assignees

• 福建雪人制冷设备有限公司

Dates

Publication Date

20260512

Application Date

20250429

Claims (7)

1. 1. A low charge brine machine set, includes chassis and compressor, the compressor is installed on the chassis, its characterized in that still includes: The plate shell condenser, the plate shell evaporator and the high-pressure floating ball are respectively integrated on the underframe, the plate shell condenser is connected with the exhaust port of the compressor, the high-pressure floating ball is arranged between the plate shell condenser and the plate shell evaporator, and the plate shell evaporator is communicated with the outlet of the plate shell condenser through the high-pressure floating ball; the plate-shell oil cooler is connected with the compressor; And the control starting cabinet and the frequency converter are integrated on the underframe and are electrically connected with the underframe.
2. 2. The low-charge brine machine of claim 1 wherein an oil separator is disposed within the compressor, and wherein a suction valve assembly is disposed in communication with the compressor for compressing a refrigerant gas and effecting separation of the refrigerant from the refrigeration oil by the oil separator.
3. 3. The low charge brine machine of claim 1, wherein the interior of the plate shell condenser and the plate shell evaporator are each provided with staggered internal flow passages.
4. 4. The low charge brine machine set of claim 3, wherein the gap of the flow channel is 0.8-1.2 mm to reduce refrigerant charge.
5. 5. The low charge brine machine of claim 2 wherein the plate and shell oil cooler is connected between the oil separator and an oil supply line, the plate and shell oil cooler being configured to cool separated chilled oil.
6. 6. The low charge brine machine of claim 1 wherein the high pressure float is configured to dynamically adjust refrigerant flow.
7. 7. The low charge brine unit of claim 1 wherein the plate shell condenser, plate shell evaporator and plate shell oil cooler are all configured as plate shells.

Description

Low-filling brine machine set Technical Field The utility model belongs to the technical field of refrigeration equipment, and particularly relates to a low-filling brine machine set. Background The low-temperature brine machine set is a device for providing process cooling low-temperature water for the industries of chemical industry, medicine, food, grain processing, fruit processing and the like. The existing conventional water chilling unit has the defects that the throttle mechanism adopts a conventional design, the refrigerant liquid level is controlled inaccurately, so that the filling amount is large, the evaporator and the condenser adopt a shell-and-tube structure, the device is not in a low-filling design, the equipment is large in size and high in transportation cost, an external oil separator is required to be additionally arranged on the compressor with built-in oil, the pipeline is complex, and the fault risk is high. In view of the above, it is important to design and manufacture a brine machine set with low filling, compact structure and stable operation. Disclosure of utility model Aiming at the technical problems of large refrigerant filling amount and complex structure in the prior art, the utility model provides the low-filling brine machine set which is controlled by accurate throttling, has a high-efficiency heat exchange structure and is designed in an integrated way. The utility model provides a low-filling brine machine set which comprises a bottom frame, a compressor, a plate shell condenser, a plate shell evaporator, a high-pressure floating ball, a control starting cabinet, a frequency converter, a control starting cabinet and a frequency converter, wherein the compressor is arranged on the bottom frame, the plate shell condenser and the high-pressure floating ball are respectively integrated on the bottom frame, the plate shell condenser is connected with an exhaust port of the compressor, the high-pressure floating ball is arranged between the plate shell condenser and the plate shell evaporator, the plate shell evaporator is communicated with an outlet of the plate shell condenser through the high-pressure floating ball, the plate shell oil cooler is connected with the compressor, and the control starting cabinet and the frequency converter are integrated on the bottom frame and are electrically connected with the compressor. By adopting a plate shell type structure, a high-pressure floating ball and an integrated design, the refrigerant filling amount is reduced, the volume is reduced, and the energy efficiency and the stability are improved. Preferably, an oil separator is arranged in the compressor, an air suction valve assembly is communicated with the compressor, and the compressor is used for compressing refrigerant gas and separating refrigerant from refrigerating oil through the oil separator. By adopting the technical scheme, the built-in oil separator and the suction valve component of the compressor realize the efficient separation of the refrigerant and the refrigerating oil, simplify the pipeline structure and improve the stability and the energy efficiency of the system. Preferably, the plate shell condenser and the plate shell evaporator are provided with staggered internal flow passages. By adopting the technical scheme, the staggered internal flow passage design of the plate shell condenser and the evaporator can strengthen heat exchange efficiency, reduce refrigerant filling quantity and improve unit compactness and energy conservation. Further preferably, the gap of the flow channel is 0.8-1.2 mm so as to reduce the refrigerant filling amount. Through adopting above-mentioned technical scheme, the runner clearance is set to 0.8~1.2mm, optimizes space utilization, reduces the refrigerant and detains, further reduces the filling volume, promotes unit energy efficiency and economic nature. Further preferably, the plate-shell oil cooler is connected between the oil separator and the oil supply line, and the plate-shell oil cooler is used for cooling the separated frozen oil. By adopting the technical scheme, the plate shell oil cooler is connected with the oil separator and the oil supply pipeline, so that the refrigerating oil is efficiently cooled, the stable operation of the compressor lubrication system is ensured, and the reliability of the unit is improved. Preferably, the high-pressure floating ball is used for dynamically adjusting the flow rate of the refrigerant. By adopting the technical scheme, the high-pressure floating ball can accurately monitor the liquid level and dynamically adjust the flow of the refrigerant, thereby improving the refrigeration efficiency and the system stability. Preferably, the plate shell condenser, the plate shell evaporator and the plate shell oil cooler are all set to be plate shell type. Through adopting above-mentioned technical scheme, through adopting patent level lamella shell type structural design, optimize insid