CN-224230366-U - Open type screw compressor unit

CN224230366UCN 224230366 UCN224230366 UCN 224230366UCN-224230366-U

Abstract

The application provides an open type screw compressor unit which comprises a compressor, a motor, a servo cover, an oil separator, an oil filter, a control cabinet, an economizer, an oil cooler and a bottom frame, wherein the bottom frame is arranged between supporting legs of the oil separator, the compressor is connected with the motor through the servo cover and is arranged above the oil separator, the control cabinet is arranged on one side of the oil separator and is respectively and electrically connected with the compressor, the motor and the oil separator, the oil filter is arranged below the oil separator, the economizer is arranged above the bottom frame, and the oil cooler is arranged above the bottom frame. According to the application, a redundant double-oil filter design is adopted, the on-line filter core replacement is realized through the bypass valve, the filter core maintenance can be completed without stopping the equipment, the production interruption caused by oil circuit maintenance is effectively avoided, and the continuous operation duration and operation and maintenance efficiency of the system are obviously improved.

Inventors

LI WANSHU
ZHANG MINGMING
NONG DANDAN

Assignees

福建雪人制冷设备有限公司

Dates

Publication Date: 20260512
Application Date: 20250429

Claims (7)

1. The open type screw compressor unit comprises a compressor, a motor, a servo cover, an oil separator, an oil filter, a control cabinet, an economizer, an oil cooler and a bottom frame, and is characterized in that the bottom frame is arranged between supporting legs of the oil separator, the compressor is connected with the motor through the servo cover and is arranged above the oil separator, the control cabinet is arranged on one side of the oil separator and is respectively and electrically connected with the compressor, the motor and the oil separator, the oil filter is arranged below the oil separator, the economizer is arranged above the bottom frame, and the oil cooler is arranged above the bottom frame.
2. The open-type screw compressor unit of claim 1, further comprising an intake valve assembly and a discharge valve assembly, wherein an intake port of the compressor communicates with the intake valve assembly and the discharge valve assembly communicates with the oil separator, thereby forming a gas passage of the intake valve assembly-compressor-oil separator-discharge valve assembly.
3. An open screw compressor unit according to claim 1, wherein the economizer is a plate and shell economizer.
4. An open screw compressor unit according to claim 1, wherein the oil cooler is a plate and shell type oil cooler.
5. The open-type screw compressor unit according to claim 2, further comprising an oil supply pipe assembly installed at one side of the oil separator, and the oil filter and the oil cooler and the compressor are communicated through the oil supply pipe assembly to form an oil passage of "oil separator-oil cooler-oil filter-oil supply pipe assembly-compressor".
6. The open-type screw compressor unit according to claim 2, wherein the oil filter comprises a first oil filter and a second oil filter, the first oil filter and the second oil filter are arranged below the oil separator side by side, and bypass valves are respectively arranged on the first oil filter and the second oil filter.
7. The open-type screw compressor unit of claim 2, further comprising a throttling assembly disposed on the chassis and in communication with the economizer, and a compressor make-up passage forming a "throttling assembly-economizer-compressor".

Description

Open type screw compressor unit Technical Field The application relates to the field of refrigeration equipment, in particular to an open type screw compressor unit. Background In the field of refrigeration equipment, in order to improve system performance and energy efficiency, an economizer and oil cooler matched structural design is often adopted. However, in the prior art, the economizer is arranged on the oil cooler, and the layout mode forms a large limit on the overall structural design of the equipment, so that the economizer is difficult to flexibly adapt to different application scenes and space requirements. In addition, the economizer and the oil cooler generally adopt shell-and-tube structures, and the problem of larger refrigerant filling amount exists in the structural form, so that the running cost of equipment is increased, the whole weight of the equipment is heavier, and a plurality of inconveniences are brought in the process of installation and transportation. Furthermore, the performance and structural design of the compressor in a refrigeration device, as a core component, is critical to the operation of the device. At present, most refrigeration equipment adopts a traditional compressor, oil supply pipelines of the compressor are relatively more, a large number of pipelines are connected in the equipment installation process, so that the installation process is complicated, a large amount of time and labor cost are consumed, the number of leakage points is increased due to excessive pipeline connection points, the running stability and reliability of the equipment are reduced, and the maintenance cost and the fault risk of the equipment are increased. Meanwhile, the existing refrigeration equipment is generally only designed with a single oil filter, and when the oil filter needs to be overhauled or a filter element is replaced, the whole refrigeration equipment is required to be stopped, so that the refrigeration operation can be interrupted, the production or the use can be influenced, the working efficiency of the equipment can be reduced, and unnecessary economic loss is caused. In view of the above, the existing refrigeration equipment has many shortcomings in structural design, installation and maintenance, and the like, and needs to be improved and optimized. Disclosure of utility model The application provides an open type screw compressor unit which comprises a compressor, a motor, a servo cover, an oil separator, an oil filter, a control cabinet, an economizer, an oil cooler and a bottom frame, wherein the bottom frame is arranged between supporting legs of the oil separator, the compressor is connected with the motor through the servo cover and is arranged above the oil separator, the control cabinet is arranged on one side of the oil separator and is electrically connected with the compressor, the motor and the oil separator respectively, the oil filter is arranged below the oil separator, the economizer is arranged above the bottom frame, and the oil cooler is arranged above the bottom frame. Through the technical scheme, main components such as a compressor, a motor, an oil separator, an oil filter, a control cabinet, an economizer, an oil cooler and the like are reasonably arranged on the underframe, so that an integrated system is formed. The air inlet of the compressor is communicated with the air suction valve assembly, and the air discharge valve assembly is communicated with the oil separator, so that a gas channel of the air suction valve assembly, the compressor, the oil separator and the air discharge valve assembly is formed. Specifically, the economizer is a lamella economizer. Specifically, the oil cooler is a lamella oil cooler. Through above-mentioned technical scheme, innovative application lamella heat exchanger design, through high-efficient compact heat transfer structure, reduce refrigerant charge by a wide margin, realize equipment and subtract heavy in step, not only reduce refrigerant use cost, more optimize transportation installation convenience and storage space occupation. The oil supply pipe assembly is arranged on one side of the oil separator, and the oil filter is communicated with the oil cooler and the compressor through the oil supply pipe assembly to form an oil path channel of the oil separator-oil cooler-oil filter-oil supply pipe assembly-compressor. Through the technical means, the oil-way integrated starting compressor is adopted, the connection of an external oil pipeline is reduced, the installation flow is simplified, the fault risk caused by loosening and leakage of the pipeline interface is reduced, more stable operation performance is realized by fewer connection points, and the life cycle of equipment is prolonged. The oil filter comprises a first oil filter and a second oil filter, wherein the first oil filter and the second oil filter are arranged below the oil separator side by side, and bypass valves are respectively arr