Search

CN-224215591-U - Efficient energy-saving intelligent cold and heat source system for coastal high-salt environment

CN224215591UCN 224215591 UCN224215591 UCN 224215591UCN-224215591-U

Abstract

The utility model provides a high-efficiency energy-saving intelligent cold and hot source system for a coastal high-salt environment, which relates to the field of heat exchange and comprises a heat exchange circulating pipeline and a water supplementing tank, wherein a cold and hot water circulating water pump for pressurization is connected in series in the heat exchange circulating pipeline, a seawater source heat pump type screw type cold and hot water unit is connected in series with the cold and hot water circulating water pump, and an air cooling heat pump type screw type cold and hot water unit is also connected in parallel relative to the seawater source heat pump type screw type cold and hot water unit.

Inventors

  • FAN XUEFENG
  • SHENG BANGMING
  • CHEN HAINI

Assignees

  • 南京艾卡空调系统有限公司
  • 中国能源建设集团江苏省电力设计院有限公司

Dates

Publication Date
20260508
Application Date
20250612

Claims (7)

  1. 1. The efficient energy-saving intelligent cold and hot source system for the coastal high-salt environment comprises a heat exchange circulating pipeline and a water supplementing tank (6), and is characterized in that the water supplementing tank (6) is connected with and penetrates through a vacuum exhaust water supplementing constant pressure device (5), the output end of the vacuum exhaust water supplementing constant pressure device (5) is connected with the heat exchange circulating pipeline, a cold and hot water circulating water pump (3) for pressurization is connected in series inside the heat exchange circulating pipeline, a seawater source heat pump type screw type cold and hot water unit (1) is connected in series with the cold and hot water circulating water pump (3), an air cooling heat pump type screw type cold and hot water unit (2) is connected in parallel with the seawater source heat pump type screw type cold and hot water unit (1), a cooling water pump (4) is connected in series with the air cooling heat pump type screw type cold and hot water unit (2), and a semi-closed screw variable-frequency compressor (15) for stepless load adjustment is arranged inside the seawater source heat pump type screw type cold and hot water unit (1).
  2. 2. The efficient energy-saving intelligent cold and hot source system for the coastal high salt environment according to claim 1, wherein the cold and hot water circulating water pump (3) and the cooling water pump (4) are controlled by adopting electric butterfly valves interlocked with the running state of a unit, the system further comprises a control room for installing a control system, the control room is composed of a PLC controller, a touch screen (8) and a photoelectric switch (9), and an energy efficiency monitoring module (10) for collecting energy consumption information of the device, the touch screen (8) is used for controlling the output of the PLC controller, and the photoelectric switch (9) is used for controlling photoelectric signal conversion between the PLC controller and the electric butterfly valves and the semi-closed screw variable frequency compressor (15); The cold and hot water circulating water pump (3) and the cooling water pump (4) are variable frequency pumps and are controlled by a frequency converter (11), and a signal acquisition end of the frequency converter (11) comprises a Honeviral sensor (12) for detecting return water temperature difference and pressure difference.
  3. 3. The efficient energy-saving intelligent cold and hot source system for the coastal high-salt environment, which is disclosed in claim 2, is characterized in that the seawater source heat pump type screw type cold and hot water unit (1) comprises a flooded evaporator (13) and a shell-and-tube condenser (14), and the internal pipelines of the seawater source heat pump type screw type cold and hot source unit are all titanium tubes.
  4. 4. The efficient energy-saving intelligent cold and hot source system for the coastal high-salt environment is characterized in that the air-cooled heat pump type screw type cold and hot source unit (2) comprises a fin sleeve type condenser (16) and a low-noise axial flow fan (17), the air-cooled heat pump type screw type cold and hot source unit (2) adopts a red copper pipe, a pipe plate and a shell are sprayed with an anti-corrosion coating, a flange interface is made of stainless steel, and an air inlet end of the low-noise axial flow fan (17) is provided with a metal protection net (18).
  5. 5. The efficient energy-saving intelligent cold and hot source system for the coastal high-salt environment according to claim 3 or 4 is characterized in that the seawater source heat pump type screw type cold and hot water unit (1) and the air cooling heat pump type screw type cold and hot water unit (2) are designed by adopting double refrigeration loops, and each loop is independently provided with an electronic expansion valve, a pressure sensor and a temperature sensor.
  6. 6. The efficient and energy-saving intelligent cold and heat source system for the coastal high-salt environment of claim 5, wherein the inlet and outlet ends of the heat exchange circulating pipeline are provided with full-automatic electric brush type stainless steel filters (7), and the treatment capacity of the full-automatic electric brush type stainless steel filters (7) is 5% of the total flow of the system.
  7. 7. The efficient and energy-saving intelligent cold and heat source system for the coastal high-salt environment is characterized in that the vacuum exhaust water supplementing constant-pressure device (5) adopts a normal pressure diaphragm tank and a water supplementing pump, and the water supplementing pump pumps water from the water supplementing tank (6).

Description

Efficient energy-saving intelligent cold and heat source system for coastal high-salt environment Technical Field The utility model relates to the technical field of heat exchange, in particular to a high-efficiency energy-saving intelligent cold and heat source system for a coastal high-salt environment. Background In the coal-fired power generation project, the cold and heat source system is a core facility for guaranteeing air conditioning and ventilation of a main factory building and a factory front area. The traditional system has the following problems that firstly, the energy efficiency is insufficient, the partial load performance of the water chilling unit is poor, the operation efficiency of the water pump is low, and the dynamic regulation logic is lacking, so that the whole energy consumption is higher. The system lacks an automatic switching mechanism when in fault, and the maintenance cost is high. And the control is extensive, the traditional control system only realizes the start-stop function, the unit combination and the water pump frequency can not be optimized according to the load change, and the energy-saving and stable operation requirements are difficult to meet. Meanwhile, salt fog in the sea environment is severely corroded, and conventional materials are easy to rust, so that the service life of equipment is influenced. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a high-efficiency energy-saving intelligent cold and heat source system for a coastal high-salt environment, and solves the problems of high energy consumption and instability in use in the background technology. Technical proposal The high-efficiency energy-saving intelligent cold and hot source system for the coastal high-salt environment comprises a heat exchange circulating pipeline and a water supplementing tank, wherein the water supplementing tank is connected with and penetrates through a vacuum exhaust water supplementing constant pressure device, the output end of the vacuum exhaust water supplementing constant pressure device is connected with the heat exchange circulating pipeline, a cold and hot water circulating water pump for pressurization is connected in series inside the heat exchange circulating pipeline, a seawater source heat pump type screw type cold and hot water unit is connected in series with the cold and hot water circulating water pump, an air cooling heat pump type screw type cold and hot water unit is connected in parallel with the screw type cold and hot water unit relative to the seawater source heat pump type screw type cold and hot water unit, a cooling water pump is connected in series with the air cooling heat pump type screw type cold and hot water unit, and a semi-closed screw variable frequency compressor for stepless load adjustment is arranged inside the seawater source heat pump type screw type cold and hot water unit. Further, cold and hot water circulating water pump and cooling water pump all adopt the electric butterfly valve control with unit running state interlocking, still include the control room that is used for installing control system, the control room comprises PLC controller, touch-sensitive screen and photoelectric switch to and the energy efficiency monitoring module of collection device energy consumption information, the touch-sensitive screen is used for controlling the PLC controller output, photoelectric switch realizes controlling the photoelectric signal conversion between PLC controller and electric butterfly valve and the semi-closed screw rod variable frequency compressor, cold and hot water circulating water pump and cooling water pump are the variable frequency pump to through the converter control, the signal acquisition end of converter is including being used for detecting return water difference in temperature, differential holmivir sensor. Further, the seawater source heat pump type screw type cold and hot water unit comprises a flooded evaporator and a shell-and-tube condenser, and the internal pipelines of the seawater source heat pump type screw type cold and hot water unit are all titanium pipes. Further, the air-cooled heat pump type screw type cold and hot water unit comprises a fin sleeve type condenser and a low-noise axial flow fan, the air-cooled heat pump type screw type cold and hot water unit adopts a copper tube, a tube plate and a shell are sprayed with an anti-corrosion coating, a flange interface adopts stainless steel, and an air inlet end of the low-noise axial flow fan is provided with a metal protective net. Furthermore, the seawater source heat pump type screw type cold and hot water unit and the air cooling heat pump type screw type cold and hot water unit are designed by adopting double refrigeration loops, and each loop is independently provided with an electronic expansion valve, a pressure sensor and a temperature sensor. Further, the inlet and outlet ends of the heat e