CN-224215422-U - Novel integrated large-temperature-difference absorption heat exchanger unit device

Abstract

The utility model belongs to the technical field of central heating, and particularly relates to a novel integrated large-temperature-difference absorption heat exchanger unit device, wherein mediums at two sides of the unit device are respectively high-temperature side water and low-temperature side water, the high-temperature side water sequentially flows through a generator of a large-temperature-difference absorption heat pump, a water-water heat exchanger and an evaporator of the large-temperature-difference absorption heat pump to be sufficiently cooled, the high-temperature side water is connected with a high-temperature side water return pipe through a connecting pipeline and a pipeline accessory, the low-temperature side water return pipe is pressurized through a circulating water pump and then is branched into two paths, one path sequentially enters an absorber and a condenser of the large-temperature-difference absorption heat pump to be heated, the other path enters the water-water heat exchanger to exchange heat with high Wen Ceshui, and the two paths of mediums are fully mixed and are connected with the low-temperature side water supply through the connecting pipeline and the pipeline accessory after being respectively heated. The device is integrated in the same frame, has compact structure and small station room area, is convenient for prefabricating unit pipe fittings, improves the manufacturing and mounting efficiency, and ensures that the unit performance is more stable, efficient and energy-saving.

Inventors

• SUN CHAOFENG
• BAO HAO
• ZHOU DONG
• LU YU
• HOU MINGLI
• LIU XIAOFEI
• LIU ZHONGFEI
• Dui Yanting
• GE LEI

Assignees

• 郑州郑鼎供热设备有限公司

Dates

Publication Date

20260508

Application Date

20250611

Claims (6)

1. 1. The novel integrated large-temperature-difference absorption heat exchanger unit device is characterized by comprising a large-temperature-difference absorption heat pump, a water-water heat exchanger, a circulating water pump, a water supplementing tank, a connecting pipeline, pipeline accessories and a power distribution control cabinet, wherein the generator of the large-temperature-difference absorption heat pump is connected with a high-temperature water measuring pipe through the connecting pipeline, the heat flow inlet end of the water-water heat exchanger is connected with the generator of the large-temperature-difference absorption heat pump and the high-temperature water supplying pipe, the heat flow outlet end of the water-water heat exchanger is connected with an evaporator of the large-temperature-difference absorption heat pump and a high-temperature-side water return pipe, the evaporator of the large-temperature-difference absorption heat pump is connected with the high-temperature-side water return pipe, the cold flow inlet end of the water-water heat exchanger is connected with the low-temperature-side water return pipe, the cold flow outlet end of the water-water heat exchanger is connected with the low-temperature-side water supplying pipe, the condenser of the large-temperature-difference absorption heat pump is connected with the low-temperature-side water supplying pipe, the circulating water pump is arranged on the low-temperature-side water return pipe, and the circulating water pump is connected with the power distribution control cabinet through the same power distribution valve, the power distribution valve and the power distribution control cabinet.
2. 2. The novel integrated large temperature difference absorption heat exchanger unit device according to claim 1, wherein a shock mount is arranged at the bottom of the frame.
3. 3. The novel integrated large-temperature-difference absorption heat exchanger unit device according to claim 1, wherein the water-water heat exchanger comprises two operating conditions, one is used for directly exchanging heat between a high-temperature side medium and a low-temperature side medium, and the other is used for exchanging heat between the high-temperature side medium cooled by the large-temperature-difference absorption heat pump and a low-temperature side heat supply medium.
4. 4. The novel integrated large-temperature-difference absorption heat exchanger unit device according to claim 1, wherein the circulating water pump and the water supplementing pump both adopt variable frequency motors, and the rotating speed of the variable frequency motors is dynamically adjusted by the PLC according to the temperature difference of the low-temperature side water supply and return.
5. 5. The novel integrated large-temperature-difference absorption heat exchanger unit device according to claim 1, wherein the connecting pipeline is made of carbon steel and is connected through flange connection or welding.
6. 6. The novel integrated large-temperature-difference absorption heat exchanger unit device according to claim 1, wherein the power distribution control cabinet is integrated with an internet of things communication module and supports remote start-stop, parameter setting and fault diagnosis functions.

Description

Novel integrated large-temperature-difference absorption heat exchanger unit device Technical Field The utility model belongs to the technical field of central heating, and particularly relates to a novel integrated large-temperature-difference absorption heat exchanger unit device. Background The traditional large-temperature-difference absorption heat exchanger unit heating system generally adopts a scattered arrangement mode, and each device (such as a large-temperature-difference absorption heat pump, a water-water heat exchanger, a circulating water pump, a water supplementing tank, a power distribution control cabinet and the like) is independently installed, so that the following problems exist: (1) The occupied space is large, the occupation area is increased due to the scattered arrangement of the equipment, and the application is limited especially in urban areas; (2) The installation is complicated, pipelines and an electrical system are required to be assembled on site, the construction period is long, and the cost is high; (3) The heat loss is remarkable, the long-distance pipeline causes heat loss, and the energy efficiency of the system is reduced; (4) The operation and maintenance are inconvenient, namely equipment is distributed and arranged in a scattered way, so that the inspection and fault investigation difficulty is increased; (5) And the overall water resistance is overlarge, the equipment is arranged in a scattered way to increase the running water resistance of the system, and the energy consumption is overlarge. In the prior art, although partial integration attempts are made, the prior art is limited to local equipment combination, and the high integration and intelligent control optimization of the whole system are not realized. Therefore, a compact, fully functional integrated solution is needed. Disclosure of utility model The utility model aims to overcome the defects of the prior art and provide a highly integrated large-temperature-difference absorption heat exchanger unit device, which eliminates the defects of traditional scattered arrangement through a modularized design, optimizes a thermodynamic cycle and control system and improves energy efficiency and operation and maintenance convenience. The novel integrated large-temperature-difference absorption heat exchanger unit device comprises a large-temperature-difference absorption heat pump, a water-water heat exchanger, a circulating water pump, a water supplementing tank, a connecting pipeline, pipeline accessories and a power distribution control cabinet, wherein the generator of the large-temperature-difference absorption heat pump is connected with a high-temperature side water supply pipe through the connecting pipeline, the heat flow inlet end of the water-water heat exchanger is connected with the generator of the large-temperature-difference absorption heat pump and the high-temperature side water supply pipe, the heat flow outlet end of the water-water heat exchanger is connected with an evaporator of the large-temperature-difference absorption heat pump and a high-temperature-side water return pipe, the evaporator of the large-temperature-difference absorption heat pump is connected with the high-temperature-side water return pipe, the cold flow inlet end of the water-water heat exchanger is connected with a low-temperature-side water supply pipe, the condenser of the large-temperature-difference absorption heat pump is connected with the low-temperature-side water supply pipe, the circulating water pump is arranged on the low-temperature-side water return pipe, the circulating water pump is connected with a heat supplementing pump and a heat pump, and a power distribution valve, a power supply pipe and a power supply pipeline and an integrated heat meter and a power supply pipeline are arranged in the water heater, the integrated heat exchanger and the integrated heat exchanger unit device comprises a power supply and a power supply controller. Further, the bottom of the frame is provided with a damping support. Further, the water-water heat exchanger comprises two operating conditions, wherein one operating condition is used for directly exchanging heat between a high-temperature side medium and a low-temperature side medium, and the other operating condition is used for exchanging heat between the high-temperature side medium and a low-temperature side heat supply medium after exchanging heat and cooling with a large-temperature difference absorption heat pump generator. Further, the circulating water pump and the water supplementing pump both adopt variable frequency motors, and the rotating speed of the variable frequency motors is dynamically adjusted by the PLC according to the temperature difference of the water supply and return at the low temperature side. Furthermore, the connecting pipelines are made of carbon steel, and are connected through flange connection or welding, so that local resistance i