CN-122015174-A - Heating system and heating method

CN122015174ACN 122015174 ACN122015174 ACN 122015174ACN-122015174-A

Abstract

The application discloses a heating system and a heating method, and belongs to the technical field of heating. The heating system comprises a plurality of heat pump modules, a water diversion device and a water collection device. Each heat pump module comprises a first heat exchange tube, a first pipeline, a second heat exchange tube and a second pipeline, wherein in the same heat pump module, the first heat exchange tube and the first pipeline are adjacently arranged for heat exchange, the second heat exchange tube and the second pipeline are adjacently arranged for heat exchange, the first pipeline and the second pipeline are adjacently arranged for heat exchange, a water diversion device is communicated with the first heat exchange tube of each heat pump module, and a water collection device is communicated with the second heat exchange tube of each heat pump module. According to the application, the plurality of standardized heat pump modules capable of running independently are arranged, and the water diversion device and the water collection device are adopted to connect each heat pump module in parallel, so that the capacity of the heating system can be flexibly expanded according to actual requirements.

Inventors

GUO CHENHUI
YANG YAO
DING JIE

Assignees

合肥阳光零碳技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260331

Claims (15)

1. A heating system, comprising: the heat pump comprises a plurality of heat pump modules, wherein each heat pump module comprises a first heat exchange tube, a first pipeline, a second heat exchange tube and a second pipeline; in the same heat pump module, the first heat exchange pipe and the first pipeline are adjacently arranged to perform heat exchange, the second heat exchange pipe and the second pipeline are adjacently arranged to perform heat exchange, and the first pipeline and the second pipeline are adjacently arranged to perform heat exchange; A water distribution device in communication with the first heat exchange tube of each of the heat pump modules, the water distribution device configured to distribute a water source to the first heat exchange tube of at least one of the heat pump modules, and And the water collecting device is communicated with the second heat exchange pipe of each heat pump module and is configured to collect hot water subjected to heat exchange in the second heat exchange pipe in the heat pump module supplied with water by the water dividing device.
2. A heating system according to claim 1, wherein, The water outlet of the water diversion device is communicated with the water inlet of the first heat exchange tube, and the water outlet of the first heat exchange tube is communicated with the water inlet of the water diversion device; the water outlet of the water collecting device is communicated with the water inlet of the second heat exchange tube, and the water outlet of the second heat exchange tube is communicated with the water inlet of the water collecting device.
3. A heating system according to claim 2, further comprising: The water outlet of the water tank is communicated with the water inlet of the water diversion device, and the water inlet of the water tank is communicated with the water outlet of the first heat exchange tube; The water outlet of the heat utilization device is communicated with the water inlet of the second heat exchange tube, and the water inlet of the heat utilization device is communicated with the water outlet of the second heat exchange tube.
4. A heating system according to claim 3, wherein, The water diversion device comprises a first main water pipe, a second main water pipe and a plurality of water diversion pipelines which are arranged in parallel, wherein the water inlet of the first main water pipe is communicated with the water outlet of the water tank, one water diversion pipeline is communicated with the water outlet of the first main water pipe and the water inlet of the second main water pipe, one first heat exchange pipe is connected in series in one water diversion pipeline, A first water pump is arranged on the first main water pipe, and the first water pump is arranged between the water tank and the diversion pipeline; a first valve body is arranged on each water diversion pipeline, and the first valve body is arranged between the first water pump and the first heat exchange pipe; the second main water pipe is provided with a second valve body, and the second valve body is arranged between the first heat exchange pipe and the water tank.
5. A heating system according to claim 4, wherein, Each water diversion pipeline is further provided with a first temperature sensor, a first flowmeter and a second temperature sensor, the first temperature sensor and the first flowmeter are arranged between the first heat exchange pipe and the first water pump, and the second temperature sensor is arranged between the first heat exchange pipe and the second main water pipe; the second main water pipe is also provided with a first pressure gauge, and the first pressure gauge is arranged between the second temperature sensor and the second valve body.
6. A heating system according to claim 3, wherein, The water collecting device comprises a third main water pipe, a plurality of water collecting pipelines and a fourth main water pipe which are arranged in parallel, wherein a water inlet of the third main water pipe is communicated with a water outlet of the heat utilization device, one water collecting pipeline is communicated with a water outlet of the third main water pipe and a water inlet of the fourth main water pipe, one second heat exchange pipe is connected in series in one water collecting pipeline, A second water pump is arranged on the third main water pipe, and the second water pump is arranged between the heat utilization device and the water collecting pipeline; a third valve body is arranged on each water collecting pipeline and is arranged between the second water pump and the second heat exchange pipe; the fourth main water pipe is provided with a fourth valve body, and the fourth valve body is arranged between the second heat exchange pipe and the heat utilization device.
7. A heating system according to claim 6, wherein, Each water collecting pipeline is further provided with a third temperature sensor, a second flowmeter and a fourth temperature sensor, wherein the third temperature sensor and the second flowmeter are arranged between the second heat exchange pipe and the second water pump, and the fourth temperature sensor is arranged between the second heat exchange pipe and the fourth main water pipe; the fourth main water pipe is also provided with a second pressure gauge, and the second pressure gauge is arranged between the fourth temperature sensor and the fourth valve body.
8. A heating system according to claim 1, wherein, Each heat pump module comprises at least one heat exchange subsystem, and each heat exchange subsystem comprises a first heat exchanger, a first compressor, a first throttle valve, a second heat exchanger, a second compressor, a second throttle valve and an intermediate heat exchanger; the first heat exchanger comprises a first heat exchange tube and a third heat exchange tube which are mutually independent, the second heat exchanger comprises a second heat exchange tube and a fourth heat exchange tube which are mutually independent, and the middle heat exchanger comprises a fifth heat exchange tube and a sixth heat exchange tube which are mutually independent; wherein the third heat exchange tube, the first compressor, the fifth heat exchange tube and the first throttle valve are in fluid communication with each other to form the first pipeline; the fourth heat exchange tube, the second compressor, the sixth heat exchange tube and the second throttle valve are in fluid communication with each other to form the second pipeline.
9. A heating system according to claim 8, wherein, Each heat pump module comprises at least two heat exchange subsystems, and the at least two heat exchange subsystems are connected in parallel.
10. A heating system according to claim 1, further comprising: And the main controller is in communication connection with each heat pump module.
11. A heating method, applied to a heating system according to any one of claims 1 to 10, comprising: Determining a scheduling policy based on the heat demand; and based on the scheduling strategy, sending a calling instruction to at least one heat pump module, so that a water distributing device distributes a water source to a first heat exchange tube of the at least one heat pump module, and collecting hot water subjected to heat exchange in a second heat exchange tube corresponding to the heat pump module by the water collecting device, wherein in the same heat pump module, the first heat exchange tube exchanges heat with a first pipeline, and the second heat exchange tube exchanges heat with a second pipeline.
12. A heating method according to claim 11, wherein, The step of determining a scheduling policy based on the heat demand includes: Determining that the number of operation of the heat pump modules is N, N is more than or equal to 1 based on the heat demand and initial environmental parameters, wherein the initial environmental parameters comprise the water inlet temperature of the first heat exchange tube, the water inlet temperature of the second heat exchange tube, the number of operated heat pump modules, the energy efficiency ratio of a single heat pump module and the operation times of the single heat pump module; And selecting N heat pump modules from the plurality of heat pump modules as target heat pump modules according to a preset heat supply strategy, wherein the preset heat supply strategy comprises a rotation strategy and a comprehensive health degree strategy.
13. A method of heating according to claim 12, further comprising: In case that the preset heating strategy is the rotation strategy, Comparing the accumulated operation time lengths of the heat pump modules based on the accumulated operation time length of each heat pump module, and determining N heat pump modules with the least accumulated operation time lengths as the target heat pump modules; in the case where the preset heating strategy is the integrated health strategy, Determining a dynamic coefficient of the heating system based on the working condition of the heating system; And determining N heat pump modules with highest comprehensive health degrees as the target heat pump modules based on the dynamic coefficient, the performance health degree and the equipment health degree.
14. A heating method according to claim 13, wherein, The step of sending a call instruction to at least one heat pump module based on the scheduling policy includes: Starting N target heat pump modules, and monitoring current environmental parameters of each target heat pump module in real time, wherein the current environmental parameters comprise the water outlet temperature of the first heat exchange tube, the water outlet temperature of the second heat exchange tube, the inlet temperature of the first compressor and the inlet temperature of the second throttle valve.
15. A method of heating according to claim 14, further comprising: Determining whether each target heat pump module maintains a current running state based on a comparison result of the initial environmental parameter and the current environmental parameter; if each target heat pump module maintains the current running state, monitoring whether each target heat pump module has fault alarm or the comprehensive health exceeds a preset health value; And if any one of the target heat pump modules has a fault alarm or the comprehensive health degree exceeds a preset health value, starting other heat pump modules to replace the current target heat pump module.

Description

Heating system and heating method Technical Field The application relates to the technical field of heat supply, in particular to a heat supply system and a heat supply method. Background Along with the continuous improvement of the high-temperature heat energy requirement of more than 80 ℃ in the fields of industrial process heating, high-temperature hot water preparation and the like, the single-stage compression heat pump is a common heat supply device due to simple structure and wide application. However, the single-stage heat pump is limited by the compression ratio, the exhaust temperature and the performance of working media, and is difficult to provide stable and continuous heat output under the high-temperature working condition, and when the load fluctuates or the heat source condition changes, the outlet water temperature deviation is large, the operation working condition drifts, and the industrial continuous and stable heat utilization requirement cannot be met. The traditional single-stage heat pump is mainly designed in an integral shaping way, has fixed capacity and poor expansion flexibility, cannot elastically increase or decrease the capacity according to the heat load used on site, has low energy efficiency under the working conditions of low load and variable load, and has insufficient suitability. Disclosure of Invention The embodiment of the application provides a heating system and a heating method, which aim to at least partially solve the technical problems. In order to achieve the above object, according to a first aspect of the present application, there is provided a heating system comprising: the heat pump comprises a plurality of heat pump modules, wherein each heat pump module comprises a first heat exchange tube, a first pipeline, a second heat exchange tube and a second pipeline; in the same heat pump module, the first heat exchange pipe and the first pipeline are adjacently arranged to perform heat exchange, the second heat exchange pipe and the second pipeline are adjacently arranged to perform heat exchange, and the first pipeline and the second pipeline are adjacently arranged to perform heat exchange; A water distribution device in communication with the first heat exchange tube of each of the heat pump modules, the water distribution device configured to distribute a water source to the first heat exchange tube of at least one of the heat pump modules, and And the water collecting device is communicated with the second heat exchange pipe of each heat pump module and is configured to collect hot water subjected to heat exchange in the second heat exchange pipe in the heat pump module supplied with water by the water dividing device. In some embodiments, the water outlet of the water diversion device is communicated with the water inlet of the first heat exchange tube, and the water outlet of the first heat exchange tube is communicated with the water inlet of the water diversion device; the water outlet of the water collecting device is communicated with the water inlet of the second heat exchange tube, and the water outlet of the second heat exchange tube is communicated with the water inlet of the water collecting device. In some embodiments, the heating system further comprises: The water outlet of the water tank is communicated with the water inlet of the water separator, and the water inlet of the water tank is communicated with the water outlet of the first heat exchange tube; The water outlet of the heat utilization device is communicated with the water inlet of the second heat exchange tube, and the water inlet of the heat utilization device is communicated with the water outlet of the second heat exchange tube. In some embodiments, the water diversion device comprises a first main water pipe, a second main water pipe and a plurality of water diversion pipelines which are arranged in parallel, wherein the water inlet of the first main water pipe is communicated with the water outlet of the water tank, one water diversion pipeline is communicated with the water outlet of the first main water pipe and the water inlet of the second main water pipe, one first heat exchange pipe is connected in series in one water diversion pipeline, A first water pump is arranged on the first main water pipe, and the first water pump is arranged between the water tank and the diversion pipeline; a first valve body is arranged on each water diversion pipeline, and the first valve body is arranged between the first water pump and the first heat exchange pipe; the second main water pipe is provided with a second valve body, and the second valve body is arranged between the first heat exchange pipe and the water tank. In some embodiments, each of the water diversion pipelines is further provided with a first temperature sensor, a first flowmeter and a second temperature sensor, wherein the first temperature sensor and the first flowmeter are arranged between the first heat exchange pip