Heat pump system for treating cold area after sewage-primary sewage

A cold area, heat pump system technology, applied in the direction of heat pump, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of low water temperature of biological treatment sewage, high energy utilization efficiency, large energy efficiency ratio of heat pump system, etc., to achieve heat conduction The effect of fast, high energy utilization efficiency and high energy efficiency ratio

Inactive Publication Date: 2007-09-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention has the following beneficial effects: 1. The present invention applies a sewage heat pump system with a three-stage shower condenser to the sewage treatment system to heat raw sewage. On the one hand, it can solve biological problems in cold regions, cold months or special occasions Solve the problem of low water temperature in sewage; on the other hand, fully recycle the heat energy in sewage, saving additional energy for heating sludge, sewage and aeration. It coincides with the time, and both belong to low-grade heat energy, the energy utilization efficiency is high, the energy efficiency ratio of the heat pump system is large, and energy waste is avoided, so the present invention has significant economic and social benefits

Method used

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  • Heat pump system for treating cold area after sewage-primary sewage
  • Heat pump system for treating cold area after sewage-primary sewage
  • Heat pump system for treating cold area after sewage-primary sewage

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Experimental program
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specific Embodiment approach 1

[0006] Specific Embodiment 1: This embodiment is described in conjunction with FIG. 1. This embodiment consists of a three-stage shell-and-tube evaporator 1, a check valve 2, a refrigerant inlet pipeline 3, a refrigerant outlet pipeline 4, a compressor 5, a gas The liquid separator 6, the expansion valve 7, the three-stage shower condenser 8, and the refrigerant pipeline 9 are composed; the outlet end of the compressor 5 is fixedly connected with the inlet end of the one-way valve 2 through the refrigerant pipeline 9, and the one-way The outlet end of the valve 2 is fixedly connected to the inlet end of the three-stage shower condenser 8 through the refrigerant inlet pipeline 3, and the outlet end of the three-stage shower condenser 8 is connected to the expansion valve 7 through the refrigerant outlet pipeline 4. The inlet end is fixedly connected, the outlet end of the expansion valve 7 is fixedly connected to the inlet end of the evaporator 1 through the refrigerant pipeline...

specific Embodiment approach 2

[0007] Specific embodiment two: This embodiment is described in conjunction with Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, and Fig. 9. Spray snake pipe, water spray pipe 8-2, dripping plate 8-3, liquid separation pipe 8-4, liquid collection pipe 8-5, bracket, connecting frame 8-7, bracket spacing adjustment device 8-8, connector 8- 9 components; each row of spray coils 8-1 is respectively installed in the corresponding bracket, and each horizontal tube 8-1-1 on each row of spray coils 8-1 is respectively installed on the bracket spacing adjustment device 8-8 , the two ends of the bracket spacing adjustment device 8-8 are respectively connected to the bracket, each column of spray coils 8-1 has a shower tube 8-2, and the top of each column of spray coils 8-1 is connected to the corresponding shower tube The distance between the bottom ends of 8-2 is h, and there is a set of shower holes 8-2-1 with a diameter of Φ on the pipe wall at the top of the shower pipe 8-2, and two...

specific Embodiment approach 3

[0009] Specific embodiment three: This embodiment is described in conjunction with Fig. 2, Fig. 3, and Fig. 4. The difference between this embodiment and specific embodiment two is: the bracket of this embodiment is composed of a left bracket 8-6 and a right bracket 8-12 ; The left end of each row of spray coils 8-1 is fixed in the corresponding left bracket 8-6, the right end of each row of spray coils 8-1 is fixed in the corresponding right bracket 8-12, and the left bracket 8-6 On the outer wall of the bottom end of the shower pipe 8-2 between the right bracket 8-12 and on the outer wall of the bottom end of each horizontal pipe 8-1-1 on each row of spray coils 8-1, they are respectively fixedly connected along the axial direction There are 8-3 drop plates. The left bracket 8-6 and the right bracket 8-12 are used to fix each row of spray coils 8-1, which has the advantages of firm fixing and easy installation and disassembly.

[0010] Embodiment 4: This embodiment is descr...

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Abstract

The present invention relates to a sewage heating system of sewage treatment plant. Said system is characterized by that the invented compressor is fixedly connected with non-return valve by means of refrigerant pipeline, the non-return valve is fixedly connected with three-stage shower-cooled condenser by means of refrigerant inlet pipeline, the three-stage shower-cooled condenser is fixedly connected with expansion valve by means of refrigerant outlet pipeline, said expansion valve is fixedly connected with evaporator by means of refrigerant pipeline, the evaporator is fixedly connected with gas-liquid separator by means of refrigerant pipeline, and said gas-liquid separator is fixedly connected with compressor by means of refrigerant pipeline. The treated sewage heat energy can be recovered and reutilized.

Description

technical field [0001] The invention relates to a sewage heating system of a sewage treatment plant, in particular to a treated sewage-primary sewage heat pump system in cold regions. Background technique [0002] The most commonly used sewage treatment process in most sewage treatment plants in my country is the traditional activated sludge process. The activated sludge method is a kind of sewage biological treatment method, and the sewage water temperature is the most important factor affecting the sewage biological treatment effect. Comprehensive studies have shown that the most suitable temperature range for sewage biological treatment is 25-35°C, and the sewage temperature of sewage treatment places such as pharmaceutical factories and breweries is often required to be higher. In order to meet the temperature requirements of sewage treatment, the following measures are often taken in some cities in northern my country: (1) The walls of aeration tanks, secondary sedimen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B30/06C02F3/12
CPCY02W10/10
Inventor 姚杨姜益强马最良宋艳
Owner HARBIN INST OF TECH
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