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A heat recovery type sewage source heat pump system

A sewage source heat pump and heat recovery technology, applied in heat pumps, lighting and heating equipment, mechanical equipment, etc., can solve the problems of low utilization rate of heat energy of discharged sewage, and achieve the effect of high efficiency utilization and high energy efficiency ratio of units

Active Publication Date: 2017-07-18
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the embodiments of the present invention is to provide a heat recovery type sewage source heat pump system to solve the problem of low heat energy utilization rate of discharged sewage in the prior art

Method used

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  • A heat recovery type sewage source heat pump system
  • A heat recovery type sewage source heat pump system
  • A heat recovery type sewage source heat pump system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 4 Shown is a schematic structural diagram of Embodiment 1 of a heat recovery type sewage source heat pump system provided by the present invention, which is composed of Figure 4 It can be seen that, in the embodiment of the heat recovery type sewage source heat pump system provided by the present invention, the first sewage pump 21 is arranged between the water inlet of the inner pipe of the primary casing heat exchanger 31 and the sewage outlet of the biochemical pool 1; A second sewage pump 22 is arranged between the water outlet of the outer casing of the primary casing heat exchanger 31 and the water inlet of the biochemical pool 1 .

[0049] The heating coil 10 is a refrigerant heating coil. The heat pump unit 5 is replaced by an evaporator 6 , a throttle element 7 and a compressor 8 . The water outlet of the inner tube of the primary casing heat exchanger 31 is connected to the water source side water inlet of the evaporator 6, and the water sou...

Embodiment 2

[0052] Such as Figure 5 Shown is a schematic structural diagram of Embodiment 2 of a heat recovery type sewage source heat pump system provided by the present invention. Figure 5 It can be seen that, in the embodiment of the heat recovery type sewage source heat pump system provided by the present invention, the first sewage pump 21 is arranged between the water inlet of the inner pipe of the primary casing heat exchanger 31 and the sewage outlet of the biochemical pool 1; A second sewage pump 22 is arranged between the water outlet of the outer casing and the water inlet of the biochemical pool 1 .

[0053] The heating coil 10 is a hot water heating coil. The heat pump unit 5 includes an evaporator 6 , a throttle element 7 , a compressor 8 and a condenser 9 . The water outlet of the inner tube of the primary casing heat exchanger 31 is connected to the water source side water inlet of the evaporator 6, and the water source side water outlet of the evaporator 6 discharges ...

Embodiment 3

[0056] Such as Figure 6 Shown is a schematic structural diagram of Embodiment 3 of a heat recovery type sewage source heat pump system provided by the present invention. Figure 4 It can be seen that, in the embodiment of the heat recovery type sewage source heat pump system provided by the present invention, the first sewage pump 21 is arranged between the water inlet of the inner pipe of the primary casing heat exchanger 31 and the sewage outlet of the biochemical pool 1; A second sewage pump 22 is arranged between the water outlet of the outer casing and the water inlet of the biochemical pool 1 .

[0057] The heating coil 10 is a refrigerant heating coil. The heat pump unit 5 is replaced by an evaporator 6 , a throttle element 7 and a compressor 8 .

[0058] A secondary casing heat exchanger 32 is arranged between the primary casing heat exchanger 31 and the evaporator 6, and the water outlet of the inner tube of the primary casing heat exchanger 31 is connected to the ...

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Abstract

The present invention is applicable to the technical field of energy recovery and utilization, and provides a heat recovery type sewage source heat pump system, comprising: a biochemical pool, a primary casing heat exchanger, a heat pump unit, and a heating pipe coil; the biochemical pool processes sewage; a The water inlet of the outer casing of the first-stage casing heat exchanger is connected to the external sewage water pipe, and the water outlet is connected to the water inlet of the biochemical pool; the water inlet of the inner pipe is connected to the sewage outlet of the biochemical pool, and the water outlet is connected to the heat pump unit; the heat pump unit It is connected with the heating coil located inside the biochemical pool, and extracts the heat energy of the sewage discharged from the water outlet of the inner tube of the primary casing heat exchanger to provide heat source for the heating coil; the heating coil heats the sewage in the biochemical pool. The sewage discharged from the biochemical pool exchanges heat with the sewage water entering the biochemical pool through the primary sleeve heat exchanger, and the waste water discharged from the primary sleeve heat exchanger after heat exchange is used as the heating heat source of the biochemical pool again , realizing two-stage recycling of waste heat.

Description

technical field [0001] The invention belongs to the technical field of energy recovery and utilization, and in particular relates to a heat recovery type sewage source heat pump system. Background technique [0002] Usually, livestock and poultry farms will produce a large amount of sewage during the breeding process. The sewage mainly comes from livestock and poultry excrement and washing water of the breeding ground. The sewage is rich in nitrogen and phosphorus organic matter, which is a kind of high-concentration organic sewage, which needs to be treated before it can be used. emission. Usually, the generated low-temperature sewage is collected in the biochemical pool, and the sewage is heated to 50°C with heating equipment in the biochemical pool. Under this temperature condition, corresponding biochemical reactions occur in the biochemical pool, and finally the treated sewage is discharged from the biochemical pool. Due to the requirements of biochemical reaction cond...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B30/06F25B41/00F25B41/30F25B41/40
CPCF25B30/06F25B41/40
Inventor 车轮飞刘俊付维纲林昶隆蔡崇庆赵建伟夏继豪胡清华刘巍巍韩星
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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