CN201028899Y - Water source heat pump evaporator suitable for low-temperature water source - Google Patents

Water source heat pump evaporator suitable for low-temperature water source Download PDF

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Publication number
CN201028899Y
CN201028899Y CNU2007201010824U CN200720101082U CN201028899Y CN 201028899 Y CN201028899 Y CN 201028899Y CN U2007201010824 U CNU2007201010824 U CN U2007201010824U CN 200720101082 U CN200720101082 U CN 200720101082U CN 201028899 Y CN201028899 Y CN 201028899Y
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CN
China
Prior art keywords
refrigerant
water source
heat exchange
pipe
evaporator
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2007201010824U
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Chinese (zh)
Inventor
王全龄
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王全龄
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Priority to CNU2007201010824U priority Critical patent/CN201028899Y/en
Application granted granted Critical
Publication of CN201028899Y publication Critical patent/CN201028899Y/en
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Abstract

The utility model relates to a water source heat pump evaporator, which is in particular suitable to low temperature water source. The utility model has end with a coolant entrance and another end with the laid bar shape casing of the coolant exit, the casing of which has a horizontal heat exchange pipe, and both ends of the horizontal heat exchange pipe are respectively connected to the corresponding tube plate in a side cashing; a refrigerant and refrigerant oil mixture spraying pipe with a nozzle is arranged above the heat exchange tube; and the lower part of the bar shape outer casing has a refrigerant discharge pipe, a refrigerant steam discharge pipe and a refrigerant oil discharge pipe. The utility model adopts the single flow casing tube type evaporator structure that the coolant enters from one end first, and passes the heat exchange pipe and then is directly discharged from the other end, as well as utilizes spraying to enable the refrigerant and refrigerant oil mixture pass the heat exchange pipe to exchange heat; the coolant is large in flow, rapid in speed and short in heat exchange time with the refrigerant, thus the utility model is capable of effectively avoiding the issue that when use low temperature water source, the evaporator is easy to frozen; moreover, as the refrigerant is little in quantity and adequately be mixed with refrigerant oil, thus the utility model has well oil returning effect.

Description

Be applicable to the water source heat pump evaporator of low-temperature water source
Technical field
The utility model relates to A/C evaporator, is specifically related to a kind of water source heat pump evaporator that is applicable to low-temperature water source.
Background technology
Water resource heat pump is at present putative efficient, energy conservation air conditioning equipment, needs suitable water source during its operation.Underground water is the good water sources of water resource heat pump, and the extraction but underground water need be dug a well exists such as well water and recharges difficulty, easily causes many problems such as underground water pollution.River, river, lake, seawater are being contained huge low temperature heat energy, but since winter its water temperature about-2 ℃-0 ℃, when adopting present all types of evaporimeters to extract heat in its low water temperature, its evaporimeter easily freezes, and causes heat exchange normally to carry out.In addition, the flooded evaporator of prior art is because the refrigerant amount that fills is big, and is difficult to discharge, particularly freon class cold-producing medium after the refrigeration oil that enters evaporimeter and the refrigerant mixed and after refrigeration oil mixes, refrigeration oil effectively can't be sucked back compressor.Have, existing showering spray type and recirculation type evaporator all are to make cold-producing medium carry out forced circulation in evaporimeter by liquid pump again, and its cost of equipment height connects complicated.
Summary of the invention
The purpose of this utility model is at the problems referred to above, and a kind of water source heat pump evaporator that is applicable to low-temperature water source is provided.
The technical scheme that realizes above-mentioned purpose is: a kind of water source heat pump evaporator that is applicable to low-temperature water source, it has an end and is provided with the refrigerating medium import, the other end is provided with horizontal jar of shape shell body of refrigerating medium outlet, in jar shape shell body, be placed with two ends and be connected to horizontal heat exchanger tube on each respective side shell ends tube sheet respectively, above heat exchanger tube, be provided with cold-producing medium and refrigeration oil mixed liquor shower, be provided with cold-producing medium and refrigerant vapour and refrigeration oil discharge pipe in the bottom of jar shape shell body.
The utility model adopts refrigerating medium is entered by an end, by directly discharging by the other end behind the heat exchanger tube, and the single process shell and tube evaporator structure of utilizing spray to make cold-producing medium and refrigeration oil mixed liquor carry out heat exchange through heat exchanger tube, the flow of its refrigerating medium by evaporimeter is big, flow velocity fast and cold-producing medium between heat exchanger time short, thereby the problem of effectively having avoided evaporimeter to use low-temperature water source easily to freeze, and the oil return effect of evaporimeter is effectively improved.
The utility model also has following advantage:
1, owing to is provided with shower and nozzle, characteristics with showering spray type evaporimeter, and saved the liquid pump of forced circulation, power by electric expansion valve and compressor, on the heat-transfer area of heat exchanger tube, it is well wetting that the heat exchanger tube surface is obtained, thereby improved the heat exchange effect with the liquid refrigerant spray, make system simple, cheap.
2, owing to utilize electric expansion valve, the degree of superheat and mistake liquid measure easily reach high precision in control, realize circulating kind of refrigeration cycle process easily, so the cold-producing medium consumption is considerably less, and have reached the effect of flooded evaporator.
3, because cold-producing medium and refrigeration oil and refrigerant vapour are discharged by the evaporimeter bottom, so overcome flooded evaporator because of the upper end of exhaust outlet at housing, the refrigeration oil that dissolves in the cold-producing medium is the problem of difficulty discharge.
Description of drawings
Accompanying drawing is the water source heat pump evaporator structural representation that originally is applicable to low-temperature water source.
The specific embodiment
In conjunction with the accompanying drawings the specific embodiment of the present utility model is described.
As accompanying drawing, this evaporimeter has a horizontal jar shape shell body 2, and an end bottom of its jar shape shell body is provided with refrigerating medium import 1, and the top of the other end is provided with refrigerating medium outlet 5.Both ends in jar shape housing are provided with the tube sheet 4 that is used for expanded joint or welding heat exchanger tube respectively, are placed with horizontal heat exchanger tube 6 on tube sheet 4, and each heat exchanger tube is connected into and out of the chamber with the refrigerating medium that is made of housing and tube sheet respectively.In housing, be positioned at heat exchanger tube above be provided with the assembling shower nozzle cold-producing medium and refrigeration oil mixed liquor shower 3, be provided with cold-producing medium, refrigerant vapour and refrigeration oil discharge pipe 7 in the bottom of jar shape shell body.
During the utility model operation, refrigerating medium flows in heat exchanger tube, refrigeration oil and refrigerant mixed liquid from condenser enter shower 3 after the electric expansion valve throttling, through shower nozzle cold-producing medium and refrigeration oil mixed liquor are nebulized injection stream through heat exchanger tube, through with the heat exchanger tube evaporation and heat-exchange after, refrigerant vapour and the aqueous cold-producing medium of evaporation is not together through the gas-liquid separator of discharge pipe 7 to unit fully, the gas after separating is sent into the compressor air suction mouth and is sucked the back compression cycle.Because the cold-producing medium consumption is few, so refrigeration oil and refrigerant mixed are abundant, oil return is effective, and is identical with dry evaporator basically.
The utility model also is fit to other refrigeration plant and does the evaporimeter use.

Claims (1)

1. water source heat pump evaporator that is applicable to low-temperature water source, it is characterized in that: it has an end and is provided with refrigerating medium import (1), the other end is provided with horizontal jar of shape shell body (2) of refrigerating medium outlet (5), in jar shape shell body (2), be placed with two ends and be connected to horizontal heat exchanger tube (6) on each respective side shell ends tube sheet (4) respectively, be provided with the cold-producing medium and the refrigeration oil mixed liquor shower (3) of assembling shower nozzle in the top of heat exchanger tube (6), be provided with cold-producing medium, refrigerant vapour and refrigeration oil discharge pipe (7) in the bottom of jar shape shell body.
CNU2007201010824U 2007-04-18 2007-04-18 Water source heat pump evaporator suitable for low-temperature water source Expired - Lifetime CN201028899Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201010824U CN201028899Y (en) 2007-04-18 2007-04-18 Water source heat pump evaporator suitable for low-temperature water source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201010824U CN201028899Y (en) 2007-04-18 2007-04-18 Water source heat pump evaporator suitable for low-temperature water source

Publications (1)

Publication Number Publication Date
CN201028899Y true CN201028899Y (en) 2008-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007201010824U Expired - Lifetime CN201028899Y (en) 2007-04-18 2007-04-18 Water source heat pump evaporator suitable for low-temperature water source

Country Status (1)

Country Link
CN (1) CN201028899Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829460A (en) * 2012-09-16 2012-12-19 北京工业大学 Method for recovering surplus heat source energy by using flash evaporator
CN102954629A (en) * 2012-11-13 2013-03-06 顺德职业技术学院 Controlled-dryness reinforced heat transfer evaporator
CN103673694A (en) * 2013-12-05 2014-03-26 上海热泰能源技术有限公司 Falling-film shell-and-plate heat exchanger
CN103712375A (en) * 2012-10-02 2014-04-09 财团法人工业技术研究院 Evaporator of adsorption refrigeration device and flooded evaporation unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829460A (en) * 2012-09-16 2012-12-19 北京工业大学 Method for recovering surplus heat source energy by using flash evaporator
CN103712375A (en) * 2012-10-02 2014-04-09 财团法人工业技术研究院 Evaporator of adsorption refrigeration device and flooded evaporation unit
CN102954629A (en) * 2012-11-13 2013-03-06 顺德职业技术学院 Controlled-dryness reinforced heat transfer evaporator
CN103673694A (en) * 2013-12-05 2014-03-26 上海热泰能源技术有限公司 Falling-film shell-and-plate heat exchanger
CN103673694B (en) * 2013-12-05 2018-10-19 上海热泰能源技术有限公司 Falling-film shell-and-plate heat exchanger

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Granted publication date: 20080227

CX01 Expiry of patent term