CN214426073U - Multi-source coupling heating system based on two-stage compression - Google Patents

Abstract

A multi-source coupling heating system based on double-stage compression. The utility model belongs to the technical field of the energy. The utility model aims at providing a multisource coupling heating system based on doublestage compression supplies heat through the sensible heat that utilizes the sensible heat of sewage or surface water and latent heat, air to can not satisfy high temperature water demand, low value clean energy comprehensive utilization problem in solving the heating system transformation. The utility model discloses by water pump one, two, three, four, five, six, the person in charge of water pump, be responsible for one, be responsible for two, be responsible for three, be responsible for four, be responsible for five, be responsible for six, be responsible for seven, be responsible for eight, be responsible for nine, be responsible for ten, be responsible for eleven, be responsible for twelve, be responsible for thirteen, be responsible for fourteen, sewage heat exchanger, two-stage compression heat pump system unified, two-stage compression heat pump system two, two-stage compressed air source heat pump system, plate heat exchanger, choke valve, hot user, terminal control valve, cold water phase change machine system constitute, the utility model is used for large-scale comprehensive heat pump heating system.

Description

Multi-source coupling heating system based on two-stage compression

Technical Field

The utility model belongs to the technical field of the energy, concretely relates to multisource coupling heating system based on doublestage compression.

Background

Along with the implementation of the national coal-to-electricity policy, the existing heat supply pipe network in some areas cannot be transformed, and most of heat dissipation devices at the tail ends of users have high requirements on the temperature of circulating water by heating radiators, so that a method for multi-source coupling transformation of a heat supply system is provided, and secondly, the existing transformation method cannot provide high-temperature circulating water and cannot meet the heat supply requirements.

Disclosure of Invention

To prior art's not enough, the utility model aims to provide a multisource coupling heating system based on doublestage compression promptly through sewage or surface water heat exchanger, cold water phase change machine system, two-stage compressed air source heat pump system, two-stage compressed water source heat pump system draw the sensible heat of sewage or surface water, the latent heat of cold water, the sensible heat of air and carry out the grade promotion to the heat, has both satisfied hot user's heat supply demand and has realized the step utilization and the environmental protection demand of clean energy again.

The utility model discloses a solve above-mentioned technical problem, the technical scheme who takes is:

the utility model provides a scheme is a multisource coupling heating system based on doublestage compression, it by water pump one, water pump two, water pump three, water pump four, water pump five, water pump six, be responsible for one, be responsible for two, be responsible for three, be responsible for four, be responsible for five, be responsible for six, be responsible for seven, be responsible for eight, be responsible for nine, be responsible for ten, be responsible for eleven, be responsible for twelve, be responsible for thirteen, be responsible for fourteen, the sewage heat exchanger, two-stage compression heat pump system is unified, two-stage compression heat pump system two, two-stage compressed air source heat pump system, plate heat exchanger, choke valve, hot user, terminal regulating valve, cold water phase change machine system constitute, one end of being responsible for be linked together with the sewage heat exchanger, the other end is linked together with sewage or surface water source; the first water pump is arranged on the first main pipe; one end of the main pipe II is communicated with the sewage heat exchanger, and the other end of the main pipe II is communicated with the two-stage compression heat pump system I; one end of the main pipe III is communicated with the sewage heat exchanger, and the other end of the main pipe III is communicated with the first two-stage compression heat pump system; the second water pump is arranged on the third main pipe; one end of the four main pipes is communicated with the first two-stage compression heat pump system, and the other end of the four main pipes is communicated with the plate heat exchanger; the third water pump is arranged on the fourth main pipe; one end of the main pipe five is communicated with the first two-stage compression heat pump system, and the other end of the main pipe five is communicated with the second two-stage compression heat pump system; one end of the six main pipes is communicated with the plate heat exchanger, and the other end of the six main pipes is communicated with the two-stage compressed air source heat pump system; the fourth water pump is arranged on the sixth main pipe; one end of the main pipe seven is communicated with the two-stage compressed air source heat pump system, and the other end of the main pipe seven is communicated with the plate heat exchanger; the throttle valve is arranged on the main pipe seven; one end of the main pipe eight is communicated with the plate heat exchanger, and the other end of the main pipe eight is communicated with the two-phase compression heat pump system; one end of the main pipe nine is communicated with the main pipe eight, the communication point is positioned between the plate heat exchanger and the two-stage compression heat pump system two, and the other end of the main pipe nine is communicated with a heat user; the fifth water pump is arranged on the ninth main pipe; one end of the main pipe eleven is communicated with a heat consumer, the other end of the main pipe eleven is communicated with the main pipe eleven, and the communication point is positioned between the communication point of the main pipe eleven and the second two-stage compression heat pump system II; the tail end regulating valve is arranged on the main pipe ten; one end of the main pipe eleven is communicated with the two-stage compression heat pump system, and the other end of the main pipe eleven is communicated with the cold water phase change machine system; the water pump six is arranged on the main pipe eleven; one end of the main pipe twelve is communicated with the cold water phase change machine system, and the other end of the main pipe twelve is communicated with the two-stage compression heat pump system; one end of the main pipe thirteen is communicated with the sewage heat exchanger, and the other end of the main pipe thirteen is communicated with the cold water phase change machine system; one end of the main pipe fourteen is communicated with the cold water phase change machine system, and the other end of the main pipe returns sewage or surface water.

The utility model discloses an operation principle does: when heat is supplied, sewage or surface water enters the sewage heat exchanger through the first main pipe under the action of the first water pump and exchanges heat with circulating water in the sewage heat exchanger, the circulating water in the sewage heat exchanger absorbs heat from the sewage or the surface water under the action of the second water pump and then enters the two-stage compression heat pump system through the second main pipe, the circulating water exchanges heat with working media in the two-stage compression heat pump system and then returns to the sewage heat exchanger through the third main pipe, and the circulating water circulates back and forth between the sewage heat exchanger and the two-stage compression heat pump system. After absorbing heat, working media in the two-stage compression heat pump system perform grade promotion on the heat through external electric energy and transmit the heat to circulating water on the other side, the circulating water enters the plate heat exchanger through the main pipe four under the action of the water pump three, high-grade heat energy from the circulating water on the other side of the plate heat exchanger is absorbed, then a part of the circulating water enters a user terminal loop through the main pipe eight, the part of the circulating water supplies heat to a heat user through the main pipe nine, the heat user and the main pipe ten under the action of the water pump five, the other part of the circulating water is converged with the circulating water coming out of the user terminal loop along the main pipe eight and enters the two-stage compression heat pump system two, and the heat of the working media in the two-stage compression heat pump system two is absorbed and then returns to the two-stage compression heat pump system one through the main pipe five to complete circulation. Under the action of the first water pump, sewage or surface water enters the sewage heat exchanger through the first main pipe to release heat, then enters the cold water phase change machine system through the thirteen main pipes to undergo phase change, latent heat is transferred to antifreeze in the cold water phase change machine system, and sewage or surface water returns through the fourteen main pipes after the phase change is frozen. After absorbing latent heat of cold water phase change from the cold water phase change machine system, the antifreeze circulates between the cold water phase change machine system and the two-stage compression heat pump system through the eleven main pipe and the twelve main pipe under the action of the sixth water pump, and heat transfer from the cold water phase change machine system to the two-stage compression heat pump system is completed. In a loop where the two-stage compressed air source heat pump system is located, under the action of the water pump four, circulating water in the loop circulates between the two-stage compressed air source heat pump system and the plate heat exchanger through the main pipe six and the main pipe seven, and therefore extraction of sensible heat of air and heat transfer between the two-stage compressed air source heat pump system and the plate heat exchanger are achieved. The opening of the throttle valve is adjusted, and the flow of the circulating water in the path can be controlled to adjust the heat taking amount of the sensible heat of the air so as to adapt to different environment working conditions. The flow of the circulating hot water in the heat user can be adjusted by adjusting the opening degree of the tail end adjusting valve, and the flow can be adjusted according to the load requirement of the heat user.

The utility model discloses have following characteristics and beneficial effect for prior art:

1. the utility model discloses a set up sewage or lake water heat exchanger, cold water phase change machine system, air source heat pump system and utilize clean energy's sensible heat and latent heat, realized multiple clean energy coupling heat supply, solved low value clean energy comprehensive utilization and this regional heat supply environmental pollution problem.

2. The utility model discloses a set up two-stage compression water source heat pump system, two-stage compressed air source heat pump system, realized the high temperature hydrologic cycle in the user's return circuit, solved heating system and reformed transform the back and can not satisfy the heat supply demand problem.

3. The utility model discloses a multiple energy coupling heat supply has increased the stability of heating system operation under extremely cold weather.

Drawings

FIG. 1 is a schematic diagram of the system circulation connection of the present invention

In the figure: 1-1 part of a first water pump, 1-2 parts of a second water pump, 1-3 parts of a third water pump, 1-4 parts of a fourth water pump, 1-5 parts of a fifth water pump, 1-6 parts of a sixth water pump, 2-1 parts of a first main pipe, 2-2 parts of a second main pipe, 2-3 parts of a third main pipe, 2-4 parts of a fourth main pipe, 2-5 parts of a fifth main pipe, 2-6 parts of a sixth main pipe, 2-7 parts of a seventh main pipe, eight 2-8 parts of a main pipe, nine 2-9 parts of a main pipe, ten 2-10 parts of a main pipe, eleven 2-11 parts of a main pipe, twelve 2-12 parts of a main pipe, thirteen 2-13 parts of a main pipe, fourteen 2-14 parts of a main pipe, a sewage heat exchanger 3, 4-1 part of a two-stage compression heat pump system, two-2 parts of a two-stage compression heat pump system, a two-stage compression air source heat pump system 5, a plate heat exchanger 6, a throttle valve 7, a heat consumer 8, a tail end regulating valve 9, A cold water phase change machine system 10.

Detailed Description

In a first specific embodiment, as shown in the figure, the multi-source coupling heating system based on two-stage compression comprises a first water pump 1-1, a second water pump 1-2, a third water pump 1-3, a fourth water pump 1-4, a fifth water pump 1-5, a sixth water pump 1-6, a first main pipe 2-1, a second main pipe 2-2, a third main pipe 2-3, a fourth main pipe 2-4, a fifth main pipe 2-5, a sixth main pipe six 2-6, a seventh main pipe 2-7, a eighth main pipe 2-8, a ninth main pipe 2-9, a tenth main pipe 2-10, a eleventh main pipe 2-11, a twelfth main pipe 2-12, a thirteenth main pipe 2-13, a fourteenth main pipe 2-14, a sewage heat exchanger 3, a unified two-1 two-stage compression heat pump system, a two-4-2 two-2-two-stage compression heat pump system, The system comprises a two-stage compressed air source heat pump system 5, a plate heat exchanger 6, a throttle valve 7, a heat consumer 8, a tail end regulating valve 9 and a cold water phase change machine system 10, wherein one end of a main pipe I2-1 is communicated with a sewage heat exchanger 3, and the other end of the main pipe I is communicated with sewage or a surface water source; the water pump I1-1 is arranged on the main pipe I2-1; one end of the main pipe II 2-2 is communicated with the sewage heat exchanger 3, and the other end is communicated with the two-stage compression heat pump system I4-1; one end of the main pipe III 2-3 is communicated with the sewage heat exchanger 3, and the other end of the main pipe III is communicated with the two-stage compression heat pump system 4-1; the second water pump 1-2 is arranged on the third main pipe 2-3; one end of the main pipe IV 2-4 is communicated with a two-stage compression heat pump system 4-1, and the other end is communicated with a plate heat exchanger 6; the water pump III 1-3 is arranged on the main pipe IV 2-4; one end of the main pipe five 2-5 is communicated with the two-stage compression heat pump system 4-1, and the other end of the main pipe five is communicated with the two-stage compression heat pump system two 4-2; one end of the main pipe six 2-6 is communicated with the plate heat exchanger 6, and the other end is communicated with the two-stage compressed air source heat pump system 5; the fourth water pump 1-4 is arranged on the sixth main pipe 2-6; one end of the main pipe seven 2-7 is communicated with the two-stage compressed air source heat pump system 5, and the other end is communicated with the plate heat exchanger 6; the throttle valve 7 is arranged on the main pipe seven 2-7; one end of the main pipe eight 2-8 is communicated with the plate heat exchanger 6, and the other end of the main pipe eight 2-8 is communicated with the two-stage compression heat pump system two 4-2; one end of the main pipe nine 2-9 is communicated with the main pipe eight 2-8, the communication point is positioned between the plate heat exchanger 6 and the two-stage compression heat pump system two 4-2, and the other end is communicated with the heat consumer 8; the five water pumps 1-5 are arranged on the nine main pipes 2-9; one end of the main pipe ten 2-10 is communicated with a heat consumer 8, the other end of the main pipe ten 2-10 is communicated with the main pipe eight 2-8, and the communication point is positioned between the communication point of the main pipe nine 2-9 and the main pipe eight 2-8 and the two-stage compression heat pump system two 4-2; the tail end regulating valve 9 is arranged on ten 2-10 main pipes; one end of the eleven main pipes 2-11 is communicated with the two-stage compression heat pump system II 4-2, and the other end of the eleven main pipes is communicated with the cold water phase change machine system 10; the water pumps six 1-6 are arranged on eleven main pipes 2-11; one end of the main pipe twelve 2-12 is communicated with the cold water phase change machine system 10, and the other end is communicated with the two-stage compression heat pump system two 4-2; one end of the main pipe thirteen 2-13 is communicated with the sewage heat exchanger 3, and the other end is communicated with the cold water phase change machine system 10; one end of the main pipe fourteen 2-14 is communicated with the cold water phase change machine system 10, and the other end is used for returning sewage or surface water.

The working principle is as follows:

when heat is supplied, sewage or surface water enters the sewage heat exchanger 3 through the main pipe I2-1 under the action of the water pump I1-1 and exchanges heat with circulating water in the sewage heat exchanger 3, the circulating water in the sewage heat exchanger 3 absorbs heat from the sewage or the surface water under the action of the water pump II 1-2 and then enters the two-stage compression heat pump system 4-1 through the main pipe II 2-2, the circulating water exchanges heat with a working medium in the two-stage compression heat pump system 4-1 and then returns to the sewage heat exchanger 3 through the main pipe III 2-3, and the circulating water circulates back and forth between the sewage heat exchanger 3 and the two-stage compression heat pump system 4-1. After absorbing heat, working medium in a two-stage compression heat pump system 4-1 carries out grade promotion on the heat through external electric energy and transfers the heat to circulating water on the other side, the circulating water on the way enters a plate type heat exchanger 6 through a main pipe four 2-4 under the action of a water pump three 1-3, high-grade heat energy from the circulating water on the other side of the plate type heat exchanger 6 is absorbed, then the circulating water enters a user terminal loop through a part of a main pipe eight 2-8, the part of the circulating water supplies heat to a heat user 8 through a main pipe nine 2-9, a heat user 8 and a main pipe ten 2-10 under the action of a water pump five 1-5, the other part of the circulating water joins the circulating water coming out of the user terminal loop along the main pipe eight 2-8 and enters a two-stage compression heat pump system two 4-2, the heat from the working medium in the two-stage compression heat pump system two 4-2 is absorbed and then returns to the two-stage compression heat pump system through the main pipe five-2-5 4-1 complete the cycle. Under the action of a first water pump 1-1, sewage or surface water enters a sewage heat exchanger 3 through a first main pipe 2-1 to release heat and then enters a cold water phase change machine system 10 through a thirteen main pipe 2-13 to undergo phase change, latent heat is transferred to antifreeze in the cold water phase change machine system 10, and the sewage or the surface water returns through a fourteen main pipe 2-14 after the phase change and icing. After absorbing the latent heat of phase change of cold water from the cold water phase change machine system 10, the antifreeze circulates between the cold water phase change machine system 10 and the two-stage compression heat pump system two 4-2 through the main pipe eleven 2-11 and the main pipe twelve 2-12 under the action of the water pump six 1-6, and heat transfer from the cold water phase change machine system 10 to the two-stage compression heat pump system two 4-2 is completed. In a loop where the two-stage compressed air source heat pump system 5 is located, under the action of a water pump four 1-4, circulating water in the loop completes circulation between the two-stage compressed air source heat pump system 5 and the plate heat exchanger 6 through a main pipe six 2-6 and a main pipe seven 2-7, and therefore extraction of sensible heat of air and heat transfer between the two-stage compressed air source heat pump system 5 and the plate heat exchanger 6 are achieved. The opening of the throttle valve 7 is adjusted, and the flow of the circulating water in the path can be controlled to adjust the heat taking amount of the sensible heat of the air so as to adapt to different environment working conditions. The flow of the circulating hot water in the heat consumer 8 can be adjusted by adjusting the opening degree of the tail end adjusting valve 9, and the flow can be adjusted according to the load requirement of the heat consumer.

The above description has only explained the basic principle and characteristics of the present invention, the present invention is not limited by the above, without departing from the spirit and scope of the present invention, the present invention also has various changes and changes, and these changes and changes all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. A multi-source coupling heat supply system based on two-stage compression is composed of a first water pump (1-1), a second water pump (1-2), a third water pump (1-3), a fourth water pump (1-4), a fifth water pump (1-5), a sixth water pump (1-6), a first main pipe (2-1), a second main pipe (2-2), a third main pipe (2-3), a fourth main pipe (2-4), a fifth main pipe (2-5), a sixth main pipe (2-6), a seventh main pipe (2-7), an eighth main pipe (2-8), a ninth main pipe (2-9), a tenth main pipe (2-10), an eleventh main pipe (2-11), a twelfth main pipe (2-12), a thirteenth main pipe (2-13), a fourteenth main pipe (2-14), a sewage heat exchanger (3), a two-stage compression heat pump system (4-1), and a unified main pipe, The system comprises a two-stage compression heat pump system II (4-2), a two-stage compression air source heat pump system (5), a plate heat exchanger (6), a throttle valve (7), a heat user (8), a tail end regulating valve (9) and a cold water phase change machine system (10), and is characterized in that one end of a main pipe I (2-1) is communicated with a sewage heat exchanger (3), and the other end of the main pipe I is communicated with sewage or a surface water source; the first water pump (1-1) is arranged on the first main pipe (2-1); one end of the second main pipe (2-2) is communicated with the sewage heat exchanger (3), and the other end of the second main pipe is communicated with the two-stage compression heat pump system (4-1); one end of the main pipe III (2-3) is communicated with the sewage heat exchanger (3), and the other end of the main pipe III is communicated with the two-stage compression heat pump system (4-1); the second water pump (1-2) is arranged on the third main pipe (2-3); one end of the main pipe four (2-4) is communicated with the two-stage compression heat pump system (4-1), and the other end is communicated with the plate heat exchanger (6); the third water pump (1-3) is arranged on the fourth main pipe (2-4); one end of the main pipe five (2-5) is communicated with the two-stage compression heat pump system 4-1, and the other end of the main pipe five is communicated with the two-stage compression heat pump system 4-2; one end of the main pipe six (2-6) is communicated with the plate heat exchanger (6), and the other end of the main pipe six (2-6) is communicated with the two-stage compressed air source heat pump system (5); the fourth water pump (1-4) is arranged on the sixth main pipe (2-6); one end of the main pipe seven (2-7) is communicated with the two-stage compressed air source heat pump system (5), and the other end of the main pipe seven (2-7) is communicated with the plate type heat exchanger (6); the throttle valve (7) is arranged on the main pipe seven (2-7); one end of the main pipe eight (2-8) is communicated with the plate heat exchanger (6), and the other end of the main pipe eight (2-8) is communicated with the second two-stage compression heat pump system (4-2); one end of the main pipe nine (2-9) is communicated with the main pipe eight (2-8), the communication point is positioned between the plate heat exchanger (6) and the two-stage compression heat pump system two (4-2), and the other end of the main pipe nine (2-9) is communicated with a heat consumer (8); the fifth water pump (1-5) is arranged on the ninth main pipe (2-9); one end of the main pipe ten (2-10) is communicated with a heat consumer (8), the other end of the main pipe ten (2-10) is communicated with the main pipe eight (2-8), and the communication point is positioned between the communication point of the main pipe nine (2-9) and the main pipe eight (2-8) and the two-stage compression heat pump system two (4-2); the tail end regulating valve (9) is arranged on the main pipe ten (2-10); one end of the eleven main pipes (2-11) is communicated with the two-stage compression heat pump system II (4-2), and the other end of the eleven main pipes is communicated with the cold water phase change machine system (10); the water pumps six (1-6) are arranged on the main pipe eleven (2-11); one end of the main pipe twelve (2-12) is communicated with the cold water phase change machine system (10), and the other end is communicated with the two-stage compression heat pump system two (4-2); one end of the main pipe thirteen (2-13) is communicated with the sewage heat exchanger (3), and the other end is communicated with the cold water phase change machine system (10); one end of the main pipe fourteen (2-14) is communicated with the cold water phase change machine system (10), and the other end of the main pipe returns sewage or surface water.

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