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Heat pump unit utilizing waste heat of oily sewage through double evaporators

A technology of double evaporator and heat pump units, which is applied in the direction of evaporator/condenser, refrigerator, compressor, etc., can solve the problems of low calorific value, strong corrosion, etc., increase waste heat recovery, save energy consumption, improve The effect of heat transfer efficiency

Active Publication Date: 2022-08-09
大庆市普罗石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low calorific value and strong corrosion of oily sewage as a heat source, the present invention provides a heat pump unit with double evaporators that utilizes waste heat from oily sewage

Method used

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  • Heat pump unit utilizing waste heat of oily sewage through double evaporators
  • Heat pump unit utilizing waste heat of oily sewage through double evaporators
  • Heat pump unit utilizing waste heat of oily sewage through double evaporators

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings:

[0019] Depend on figure 1 combine Figures 2 to 4 As shown, a dual-evaporator heat pump unit using oily sewage waste heat includes a condenser 2, the inlet refrigerant pipe of the condenser 2 is connected to the outlet of the compressor 3, the inlet of the compressor 3 is connected in parallel with the outlet refrigerant pipes of the two evaporators 1, and the two The refrigerant inlet pipes of each evaporator 1 are respectively provided with expansion valves 5, the inlet pipes of the two expansion valves 5 are respectively connected to the outlet of the refrigerant distribution valve 4, the inlet of the refrigerant distribution valve 4 is connected to the outlet refrigerant pipe of the condenser 2, each evaporation valve The water inlet chamber A31 of the evaporator 1 is connected to the heat source inlet pipe 7, the water outlet chamber A32 of each evaporator 1 is c...

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Abstract

The invention discloses a heat pump unit utilizing oil-containing sewage waste heat by double evaporators. Relates to the technical field of heat pump units. A refrigerant inlet pipeline of the condenser is connected with an outlet of the compressor, an inlet of the compressor is connected with refrigerant outlet pipelines of the two evaporators in parallel, the refrigerant inlet pipelines of the two evaporators are respectively provided with an expansion valve, inlet pipelines of the two expansion valves are respectively connected with an outlet of a refrigerant distribution valve, and an inlet of the refrigerant distribution valve is connected with a refrigerant outlet pipeline of the condenser. The oil-containing sewage heat pump unit has the following beneficial effects that the two evaporators connected in parallel are arranged, the waste heat recovery amount is increased, the air suction temperature is increased, the problem that in actual application of a traditional oil-containing sewage heat pump unit, the heat supply capacity is insufficient is solved, and meanwhile the problem that the heat supply capacity is attenuated in successive years is solved; the heat exchange efficiency is improved by arranging the refrigerant distribution valve, the online cleaning device switches and cleans the evaporator at regular time, and the problem that the heat exchange pipe is not clean is solved.

Description

Technical field: [0001] The invention relates to the technical field of heat pump units, in particular to a double evaporator heat pump unit utilizing waste heat from oily sewage. Background technique: [0002] The low-temperature heat source of traditional high-temperature heat pump units is usually clean water such as well water and softened water. In the late stage of oilfield development, the water content of the produced fluid is getting higher and higher, and more and more oily sewage is produced from the formation. This part of the oily sewage is dehydrated The average temperature is 34°C, and the waste heat of the oily sewage has great prospects. When the oily sewage in the oil field is used as the heat source of the traditional heat pump, there will be many extreme problems of inapplicability. The oily sewage has low heat exchange efficiency and small heating capacity, which cannot be satisfied. The heating demand, the corrosion of the oily sewage to the heat pump u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B7/00F25B39/02F25B41/20F25B41/31F28G9/00F28G15/00
CPCF25B7/00F25B41/31F25B41/20F25B39/02F28G9/00F28G15/003Y02B30/52
Inventor 柳子龙惠彬彬李金宝曲元峰顾秀萍姜斌
Owner 大庆市普罗石油科技有限公司
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