CN104214941A - Waste water heat recovery heat supply method - Google Patents

Waste water heat recovery heat supply method Download PDF

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Publication number
CN104214941A
CN104214941A CN201410500869.2A CN201410500869A CN104214941A CN 104214941 A CN104214941 A CN 104214941A CN 201410500869 A CN201410500869 A CN 201410500869A CN 104214941 A CN104214941 A CN 104214941A
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CN
China
Prior art keywords
water
temperature
heat
waste water
heat exchanger
Prior art date
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.)
Withdrawn
Application number
CN201410500869.2A
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Chinese (zh)
Inventor
胡晓荣
俞娟
胡瑜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Haoyu Energy Saving Environmental Protection Equipment Co Ltd
Original Assignee
Wuxi Haoyu Energy Saving Environmental Protection Equipment Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Wuxi Haoyu Energy Saving Environmental Protection Equipment Co Ltd filed Critical Wuxi Haoyu Energy Saving Environmental Protection Equipment Co Ltd
Priority to CN201410500869.2A priority Critical patent/CN104214941A/en
Publication of CN104214941A publication Critical patent/CN104214941A/en
Withdrawn legal-status Critical Current

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Abstract

The invention discloses a waste water heat recovery method, which comprises a hot waste water pool, a first heat exchanger, a second heat exchanger, a hot water tank, a compressor, an expansion valve, a first water pump, a second water pump, a third water pump, a solenoid valve, a first temperature sensor, a second temperature sensor, a water level sensor, a heating module, a temperature display module, a temperature setting module and a control module. When the temperature of waste water cannot reach the used temperature, worthless waste water is directly controlled to discharge into a sewer; when the temperature of the waste water reaches the used temperature, the compressor is started to carry out heat exchange. According to the waste water heat recovery method, secondary heat exchange is adopted, the parts in direct contact with the waste water are limited, scaling is not easy to occur, and larger practical value is realized.

Description

A kind of waste water recuperation of heat heat supply method
Technical field
The present invention relates to heat exchange field, relate in particular to a kind of waste water recuperation of heat heat supply method.
Background technology
Recuperation of heat is exactly by a large amount of Waste Heat Recovery recyclings discharged to the external world in handpiece Water Chilling Units running, as user's final thermal source or primary heat source by certain mode.
Unit through condenser liberated heat be conventionally cooled tower or cooling blower discharged to surrounding environment in, to need to hot place as hotel, factory, hospital etc. be a kind of huge waste, also bring certain used heat to pollute to surrounding environment simultaneously.
Heat recovery technology is exactly by a large amount of Waste Heat Recovery recyclings discharged to the external world in handpiece Water Chilling Units running, as user's final thermal source or primary heat source by certain mode.
The high temperature and high pressure gaseous refrigerant that compressor is discharged is introduced into heat regenerator, emit heat heating domestic water (or other liquid state material), pass through again condenser and expansion valve, absorb the heat of the medium that is cooled at evaporimeter, the gaseous refrigerant that becomes low-temp low-pressure, returns to compressor.
For heat regenerator reclaim heat number, recuperation of heat can be divided into again part recuperation of heat and full recuperation of heat.Wherein, part recuperation of heat can only be reclaimed the part heat of handpiece Water Chilling Units discharge, and full recuperation of heat has substantially been reclaimed system and entered the net quantity of heat in environment.
According to the real needs of the difference of field of employment and user terminal, heat regenerator can adopt multiple different form, as shell-and-tube, board-like, fin tube type, bushing type etc.
At present, a lot of hotels of our country are all provided with bath system, and it is all directly to adopt electric heat supply mostly, and bathing hot water later comprises a lot of heats, is not again utilized directly and discharge from sewer, causes great energy waste.
Some hotel is also provided with the heating system of waste water recuperation of heat, but it does not distinguish the temperature of waste water, once moving all parts, whole system all moves, even if the temperature of waste water has been reduced to the stage that cannot be utilized, the step of waste water heat exchange still, carrying out, has caused energy waste.
Summary of the invention
Technical problem to be solved by this invention is the defect for background technology, and a kind of waste water recuperation of heat heat supply method of energy-saving and emission-reduction is provided.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of waste water recuperation of heat heat supply method, based on a kind of waste water recuperation of heat heating plant, this device comprises hot waste water pond, First Heat Exchanger, the second heat exchanger, boiler, compressor, expansion valve, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module and control module;
Described control module is electrically connected with compressor, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module respectively;
Waste water bottom, output that the input of described the first water pump is connected in hot waste water pond by water pipe are connected with one end of First Heat Exchanger heat release side, and the other end of described First Heat Exchanger heat release side is connected to sewer by water pipe;
Described the first temperature inductor and water level sensor are all arranged on the bottom in hot waste water pond;
Heat release side, the expansion valve of described First Heat Exchanger heat absorbing side, compressor, the second heat exchanger are connected to the circulatory system successively by condensing agent pipeline;
Described the second temperature inductor and heating module are all arranged on the inwall of boiler bottom;
Described hot water tank top is provided with the first water inlet, the second water inlet, and bottom is provided with the first delivery port, the second delivery port;
The input of described the second water pump by water pipe be connected with described the first delivery port, output is connected with one end of the second heat exchanger heat absorbing side by water pipe, the other end of described the second heat exchanger heat absorbing side is connected with described the first water inlet by water pipe;
Described the second water inlet is connected with water supply pipe by battery valve;
The input of described the 3rd water pump and the second delivery port by water pipe be connected, output is connected with feed water inlet;
The concrete steps of described waste water recuperation of heat heat supply method are as follows:
Step 1), adopts the wastewater temperature in described the first temperature inductor induction hot waste water pond, and current wastewater temperature is passed to control module;
Step 2), adopt the temperature of hot water in described the second temperature inductor induction heat water tank, and current hot water temperature is passed to control module;
Step 3), adopts the height of waste water in described water level sensor induction wastewater disposal basin, and current waste water height is passed to control module;
Step 4), described control module receives after current hot water temperature, controls temperature display module and shows current hot water temperature;
Step 5), described control module receives after water supply instruction, by current wastewater temperature and the comparison of predefined water reuse minimum temperature;
Step 6), if current wastewater temperature is more than or equal to predefined water reuse minimum temperature, described control module connects that to control the first water pump, the second water pump, the 3rd water pump, compressor, heating module in running order, until current hot water temperature equals the temperature of setting in Temperature Setting module;
Step 7), if current wastewater temperature is less than predefined water reuse minimum temperature, described control module connects that to control the first water pump, the 3rd water pump, heating module in running order, wherein, the first water pump keeps its duty until current waste water height is less than predefined minimum waste water height, and the 3rd water pump, heating module keep its duty until current hot water temperature equals the temperature of setting in Temperature Setting module.
As the further prioritization scheme of a kind of waste water recuperation of heat heat supply method of the present invention, the porch of described the first water pump is provided with filter.
As the further prioritization scheme of a kind of waste water recuperation of heat heat supply method of the present invention, described temperature indicating device adopts LED display.
As the further prioritization scheme of a kind of waste water recuperation of heat heat supply method of the present invention, described First Heat Exchanger and the second heat exchanger all adopt U-shaped pipe heat exchanger.
As the further prioritization scheme of a kind of waste water recuperation of heat heat supply method of the present invention, described First Heat Exchanger and the second heat exchanger are equipped with compensating ring outward.
Why compensating ring is set, and is because in the time that First Heat Exchanger, the second heat exchanger middle shell are different with tube bundle heat expansion, compensating ring strain slowly can occur and compensates the thermal expansion causing because of thermal (temperature difference) stress.
As the further prioritization scheme of a kind of waste water recuperation of heat heat supply method of the present invention, described magnetic valve adopts direct-acting electromagnetic valve.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. take full advantage of the heat of bath wastewater, compared with traditional heating system, effects of energy saving and emission reduction is obvious, and heats faster;
2. adopted secondary heat exchange, the parts that directly contact with waste water are limited, less scaling, and then make system highly stable;
3. in the time that wastewater temperature does not reach the temperature being utilized, directly control nugatory waste water is arranged into sewer, only, in the time that wastewater temperature reaches the temperature being utilized, just start compressor and carry out heat exchange, energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure, 1-hot waste water pond, 2-First Heat Exchanger, 3-second encircles hot plate, 4-boiler, 5-expansion valve, 6-compressor, 7-the first water pump, 8-the second water pump, 9-the 3rd water pump, 10-magnetic valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, the invention discloses a kind of waste water recuperation of heat heat supply method, based on a kind of waste water recuperation of heat heating plant, this device comprises hot waste water pond, First Heat Exchanger, the second heat exchanger, boiler, compressor, expansion valve, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module and control module;
Described control module is electrically connected with compressor, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module respectively;
Waste water bottom, output that the input of described the first water pump is connected in hot waste water pond by water pipe are connected with one end of First Heat Exchanger heat release side, and the other end of described First Heat Exchanger heat release side is connected to sewer by water pipe;
Described the first temperature inductor and water level sensor are all arranged on the bottom in hot waste water pond;
Heat release side, the expansion valve of described First Heat Exchanger heat absorbing side, compressor, the second heat exchanger are connected to the circulatory system successively by condensing agent pipeline;
Described the second temperature inductor and heating module are all arranged on the inwall of boiler bottom;
Described hot water tank top is provided with the first water inlet, the second water inlet, and bottom is provided with the first delivery port, the second delivery port;
The input of described the second water pump by water pipe be connected with described the first delivery port, output is connected with one end of the second heat exchanger heat absorbing side by water pipe, the other end of described the second heat exchanger heat absorbing side is connected with described the first water inlet by water pipe;
Described the second water inlet is connected with water supply pipe by battery valve;
The input of described the 3rd water pump and the second delivery port by water pipe be connected, output is connected with feed water inlet;
The concrete steps of described waste water recuperation of heat heat supply method are as follows:
Step 1), adopts the wastewater temperature in described the first temperature inductor induction hot waste water pond, and current wastewater temperature is passed to control module;
Step 2), adopt the temperature of hot water in described the second temperature inductor induction heat water tank, and current hot water temperature is passed to control module;
Step 3), adopts the height of waste water in described water level sensor induction wastewater disposal basin, and current waste water height is passed to control module;
Step 4), described control module receives after current hot water temperature, controls temperature display module and shows current hot water temperature;
Step 5), described control module receives after water supply instruction, by current wastewater temperature and the comparison of predefined water reuse minimum temperature;
Step 6), if current wastewater temperature is more than or equal to predefined water reuse minimum temperature, described control module connects that to control the first water pump, the second water pump, the 3rd water pump, compressor, heating module in running order, until current hot water temperature equals the temperature of setting in Temperature Setting module;
Step 7), if current wastewater temperature is less than predefined water reuse minimum temperature, described control module connects that to control the first water pump, the 3rd water pump, heating module in running order, wherein, the first water pump keeps its duty until current waste water height is less than predefined minimum waste water height, and the 3rd water pump, heating module keep its duty until current hot water temperature equals the temperature of setting in Temperature Setting module.
The porch of described the first water pump is provided with filter.
Described temperature indicating device adopts LED display.
Described First Heat Exchanger and the second heat exchanger all adopt U-shaped pipe heat exchanger.
Described First Heat Exchanger and the second heat exchanger are equipped with compensating ring outward.
Why compensating ring is set, and is because in the time that First Heat Exchanger, the second heat exchanger middle shell are different with tube bundle heat expansion, compensating ring strain slowly can occur and compensates the thermal expansion causing because of thermal (temperature difference) stress.
Described magnetic valve adopts direct-acting electromagnetic valve.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (6)

1. a waste water recuperation of heat heat supply method, based on a kind of waste water recuperation of heat heating plant, this device comprises hot waste water pond, First Heat Exchanger, the second heat exchanger, boiler, compressor, expansion valve, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module and control module;
Described control module is electrically connected with compressor, the first to the 3rd water pump, magnetic valve, the first degree inductor, the second temperature inductor, water level sensor, heating module, temperature display module, Temperature Setting module respectively;
Waste water bottom, output that the input of described the first water pump is connected in hot waste water pond by water pipe are connected with one end of First Heat Exchanger heat release side, and the other end of described First Heat Exchanger heat release side is connected to sewer by water pipe;
Described the first temperature inductor and water level sensor are all arranged on the bottom in hot waste water pond;
Heat release side, the expansion valve of described First Heat Exchanger heat absorbing side, compressor, the second heat exchanger are connected to the circulatory system successively by condensing agent pipeline;
Described the second temperature inductor and heating module are all arranged on the inwall of boiler bottom;
Described hot water tank top is provided with the first water inlet, the second water inlet, and bottom is provided with the first delivery port, the second delivery port;
The input of described the second water pump by water pipe be connected with described the first delivery port, output is connected with one end of the second heat exchanger heat absorbing side by water pipe, the other end of described the second heat exchanger heat absorbing side is connected with described the first water inlet by water pipe;
Described the second water inlet is connected with water supply pipe by battery valve;
The input of described the 3rd water pump and the second delivery port by water pipe be connected, output is connected with feed water inlet;
It is characterized in that, the concrete steps of described waste water recuperation of heat heat supply method are as follows:
Step 1), adopts the wastewater temperature in described the first temperature inductor induction hot waste water pond, and current wastewater temperature is passed to control module;
Step 2), adopt the temperature of hot water in described the second temperature inductor induction heat water tank, and current hot water temperature is passed to control module;
Step 3), adopts the height of waste water in described water level sensor induction wastewater disposal basin, and current waste water height is passed to control module;
Step 4), described control module receives after current hot water temperature, controls temperature display module and shows current hot water temperature;
Step 5), described control module receives after water supply instruction, by current wastewater temperature and the comparison of predefined water reuse minimum temperature;
Step 6), if current wastewater temperature is more than or equal to predefined water reuse minimum temperature, described control module connects that to control the first water pump, the second water pump, the 3rd water pump, compressor, heating module in running order, until current hot water temperature equals the temperature of setting in Temperature Setting module;
Step 7), if current wastewater temperature is less than predefined water reuse minimum temperature, described control module connects that to control the first water pump, the 3rd water pump, heating module in running order, wherein, the first water pump keeps its duty until current waste water height is less than predefined minimum waste water height, and the 3rd water pump, heating module keep its duty until current hot water temperature equals the temperature of setting in Temperature Setting module.
2. waste water recuperation of heat heat supply method according to claim 1, is characterized in that, the porch of described the first water pump is provided with filter.
3. waste water recuperation of heat heat supply method according to claim 1, is characterized in that, described temperature indicating device adopts LED display.
4. waste water recuperation of heat heat supply method according to claim 1, is characterized in that, described First Heat Exchanger and the second heat exchanger all adopt U-shaped pipe heat exchanger.
5. waste water recuperation of heat heat supply method according to claim 4, is characterized in that, described First Heat Exchanger and the second heat exchanger are equipped with compensating ring outward.
6. waste water recuperation of heat heat supply method according to claim 4, is characterized in that, described magnetic valve adopts direct-acting electromagnetic valve.
CN201410500869.2A 2014-09-26 2014-09-26 Waste water heat recovery heat supply method Withdrawn CN104214941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410500869.2A CN104214941A (en) 2014-09-26 2014-09-26 Waste water heat recovery heat supply method

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Application Number Priority Date Filing Date Title
CN201410500869.2A CN104214941A (en) 2014-09-26 2014-09-26 Waste water heat recovery heat supply method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105910294B (en) * 2016-05-11 2018-07-31 广东工业大学 A kind of phase transformation smart heat-energy recovery system
CN112611109A (en) * 2021-01-18 2021-04-06 王成勇 Solar-assisted waste water and waste heat recovery gas boiler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035454A (en) * 2001-07-23 2003-02-07 Matsushita Electric Ind Co Ltd Heat pump hot water supply apparatus
CN2924427Y (en) * 2006-04-04 2007-07-18 韩金山 Bathing pool heat recovering and heating device
CN101033891A (en) * 2007-03-28 2007-09-12 齐俊杰 Solar-assisted energy-saving heat and heat water supplying device for suitable for small building
CN201680570U (en) * 2010-04-02 2010-12-22 奥特朗电器(广州)有限公司 Electric water heater used with solar water heater
CN203349574U (en) * 2013-06-03 2013-12-18 无锡商业职业技术学院 Heat recovery heat-pump water heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035454A (en) * 2001-07-23 2003-02-07 Matsushita Electric Ind Co Ltd Heat pump hot water supply apparatus
CN2924427Y (en) * 2006-04-04 2007-07-18 韩金山 Bathing pool heat recovering and heating device
CN101033891A (en) * 2007-03-28 2007-09-12 齐俊杰 Solar-assisted energy-saving heat and heat water supplying device for suitable for small building
CN201680570U (en) * 2010-04-02 2010-12-22 奥特朗电器(广州)有限公司 Electric water heater used with solar water heater
CN203349574U (en) * 2013-06-03 2013-12-18 无锡商业职业技术学院 Heat recovery heat-pump water heater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105910294B (en) * 2016-05-11 2018-07-31 广东工业大学 A kind of phase transformation smart heat-energy recovery system
CN112611109A (en) * 2021-01-18 2021-04-06 王成勇 Solar-assisted waste water and waste heat recovery gas boiler
CN112611109B (en) * 2021-01-18 2022-12-09 广东共能智造装备有限公司 Solar-assisted waste water and waste heat recovery gas boiler

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Application publication date: 20141217