CN203478688U - Low-grade heat energy recycling utilization device - Google Patents
Low-grade heat energy recycling utilization device Download PDFInfo
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- CN203478688U CN203478688U CN201320476642.XU CN201320476642U CN203478688U CN 203478688 U CN203478688 U CN 203478688U CN 201320476642 U CN201320476642 U CN 201320476642U CN 203478688 U CN203478688 U CN 203478688U
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- heat exchanger
- cold water
- water
- storage tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The utility model discloses a low-grade heat energy recycling utilization device and relates to the technical field of low-grade heat energy recycling utilization. The low-grade heat energy recycling utilization device comprises a heat exchanger I, a compression pump, a heat exchanger II, an expansion valve and a water temperature constant control system. The water temperature constant control system comprises a hot water storage tank, a water temperature controller, a temperature sensor, a cold water mixing valve, a cold water and hot water mixer, an electric heater and a cold water storage tank. Heat in the low-grade heat energy is absorbed through an evaporator of the heat exchanger I, heat is transferred by the compression pump and a condenser of the heat exchanger II and is output in a hot water mode, then the temperature of the obtained hot water is adjusted through the hot water storage tank and the water temperature controller, and therefore hot water with constant temperature can be output for a user with the device. The low-grade heat energy recycling utilization device has the advantages that recycling utilization of the low-grade heat energy is achieved and the output heat energy is relatively stable.
Description
Technical field
The utility model relates to a kind of low grade heat energy recycling technical field, especially a kind of low grade heat energy recycling device.
Background technology
In different industrial application, can produce a large amount of used heat, these used heat often by directly discharged in atmosphere or waste water, the heat comprising is all by waste in vain.In low-grade heat energy recirculation system, generally the mode of utilizing of used heat has often only been realized the heat in used heat has been extracted by heat exchanger.And adopt heat pump techniques rationally to utilize this low-grade heat energy, be a kind of feasible method and approach of Waste Heat Recovery.Owing to producing various used heat in industrial processes, belong to low grade heat energy, except the relatively low feature of temperature, also often there is the unsettled feature of heat, thereby cause utilizing heat that heat pump techniques changes also always in dynamic changing process.At present traditional is often meticulous not to the utilization of heat energy for low grade heat energy recycling device, resulting heat often neither a metastable numerical value, so traditional low grade heat energy recycling device can't well meet the demand of application.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly realizes the recycling of low grade heat energy, the metastable low grade heat energy recycling of the heat of output device.
The technical scheme that the utility model adopts is for achieving the above object: a kind of low grade heat energy recycling device, this low grade heat energy recycling device comprises heat exchanger I, compression pump, heat exchanger II, expansion valve and water temperature invariant control system, heat exchanger I comprises heat release pipe and evaporimeter, heat exchanger II comprises condenser and endothermic tube, the heat release pipe two ends of heat exchanger I are connected with delivery port with the water inlet of low-grade heat source respectively, compression pump input is connected with the evaporimeter output of heat exchanger I, compression pump output is connected with the condenser input of heat exchanger II, the input of expansion valve is connected with the condenser output of heat exchanger II, the output of expansion valve is connected with the evaporimeter input of heat exchanger I, described water temperature invariant control system comprises hot water storage tank, temperature sensor, water temperature regulater, cold water mix valve, hot-and-cold water mixer, electric heater and cold water storage tank, endothermic tube one end of heat exchanger II is connected with hot water storage tank's water inlet, the endothermic tube other end of heat exchanger II is connected with a delivery port of cold water storage tank, hot water storage tank's delivery port is connected with one of them water inlet of hot-and-cold water mixer, cold water mix valve is connected between another water inlet of hot-and-cold water mixer and another delivery port of cold water storage tank, the water inlet of electric heater is connected with the delivery port of hot-and-cold water mixer, temperature sensor is arranged on hot water storage tank's delivery port, temperature sensor is connected with the input of water temperature regulater by circuit, the output of water temperature regulater is connected with cold water mix valve and electric heater respectively by circuit.
Further technical scheme of the present utility model is: described water temperature regulater comprises single-chip microcomputer, decoder, valve controling circuit, electric heater control circuit, described temperature sensor is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with the input of decoder and the input of electric heater control circuit respectively, the output of electric heater control circuit is connected with electric heater by circuit, the output of decoder is connected with the input of valve controling circuit, and the output of valve controling circuit is connected with cold water mix valve by circuit.
Owing to adopting said structure, the low grade heat energy recycling device of the utility model has following beneficial effect:
1, the low grade heat energy recycling device of the utility model can be realized the recycling of low grade heat energy, by heat pump techniques, the heat in low-grade heat source is shifted by heat exchanger I, II and exports with the form of the higher hot water of temperature;
2, unstable for fear of due to low-grade heat source heat, cause the hot water temperature of heat pump circulating system output to occur larger dynamic fluctuation, the low grade heat energy recycling device of the utility model is provided with water temperature invariant control system, can regulate control to absorbing the water temperature of low-grade heat source, the heat (with the formal output heat of hot water) that low grade heat energy recycling device is exported is relatively stable, can be for different user's output temperatures the different but hot water of water temperature stability, to meet user's demand.
Below in conjunction with the drawings and specific embodiments, a kind of low grade heat energy recycling of the utility model device is described further.
Accompanying drawing explanation
Fig. 1 is a kind of low grade heat energy recycling of the utility model apparatus structure schematic diagram;
Fig. 2 is the water temperature regulater functional-block diagram of a kind of low grade heat energy recycling of the utility model device;
Drawing reference numeral explanation: 1-water temperature invariant control system, 2-heat release pipe, 3-evaporimeter, 4-condenser, 5-endothermic tube, 6-water temperature regulater.
The specific embodiment
As shown in Figure 1, the utility model low grade heat energy recycling device, this low grade heat energy recycling device comprises heat exchanger I, compression pump, heat exchanger II, expansion valve and water temperature invariant control system 1, heat exchanger I comprises heat release pipe 2 and evaporimeter 3, heat exchanger II comprises condenser 4 and endothermic tube 5, heat release pipe 2 two ends of heat exchanger I are connected with delivery port with the water inlet of low-grade heat source respectively, compression pump input is connected with evaporimeter 3 outputs of heat exchanger I, compression pump output is connected with condenser 4 inputs of heat exchanger II, the input of expansion valve is connected with condenser 4 outputs of heat exchanger II, the output of expansion valve is connected with evaporimeter 3 inputs of heat exchanger I.The heat exchanger I with evaporimeter 3 is to meet the heat exchanger that heat pump application requires.The heat energy (with the form of hot water) of generation low-grade heat source device passes through the heat release pipe 2 of heat exchanger I by the water inlet of low-grade heat source, then is flowed out by the delivery port of low-grade heat source, and the heat that evaporimeter 3 can absorb in low-grade heat source is realized heat exchange.Compression pump can compress the coolant media being flowed out by evaporimeter 3 outputs, improves the temperature and pressure of coolant media.The heat exchanger II that is provided with condenser 4 possesses the transfer of heat of the coolant media of compression pump output outflow to outside cold water circulating system, and the recirculated water that contains heat is exported.Expansion valve carries out throttling, step-down to the coolant media of the condenser 4 of flowing through, and coolant media circulation is sent into evaporimeter 3 inputs of heat exchanger I.
Described water temperature invariant control system 1 comprises hot water storage tank, temperature sensor, water temperature regulater, cold water mix valve, hot-and-cold water mixer, electric heater and cold water storage tank, endothermic tube 5 one end of heat exchanger II are connected with hot water storage tank's water inlet, endothermic tube 5 other ends of heat exchanger II are connected with a delivery port of cold water storage tank, hot water storage tank's delivery port is connected with one of them water inlet of hot-and-cold water mixer, cold water mix valve is connected between another water inlet of hot-and-cold water mixer and another delivery port of cold water storage tank, the water inlet of electric heater is connected with the delivery port of hot-and-cold water mixer, temperature sensor is arranged on hot water storage tank's delivery port, temperature sensor is connected with the input of water temperature regulater by circuit, the output of water temperature regulater is connected with cold water mix valve and electric heater respectively by circuit.
As shown in Figure 2, described water temperature regulater 6 comprises single-chip microcomputer, decoder, valve controling circuit, electric heater control circuit, described temperature sensor is connected with the input of single-chip microcomputer, and the output of single-chip microcomputer is connected with the input of decoder and the input of electric heater control circuit respectively.The output of electric heater control circuit is connected with electric heater by circuit, and the output of decoder is connected with the input of valve controling circuit, and the output of valve controling circuit is connected with cold water mix valve by circuit.By temperature sensor, the water temperature in hot water storage tank's delivery port is monitored, and the single-chip microcomputer that the data that monitor are directly sent into water temperature regulater 6 is analyzed and processed, water temperature regulater 6 can monitor and regulate the water temperature of hot water storage tank's output, work as water temperature over-high, by cold water mix valve, put into appropriate cold water to hot-and-cold water mixer, to guarantee the temperature constant of user's water; When coolant-temperature gage in hot water storage tank's delivery port is too low, the hot water of by electric heater, hot water storage tank being exported carries out heat temperature raising, to reach user's requirement.
The hot water of the water inlet input of low-grade heat source is through the heat release pipe 2 of over-heat-exchanger I, evaporimeter 3 by heat exchanger I is by the transfer of heat containing in low-grade heat source hot water to the coolant media in evaporimeter 3, and coolant media will contain heat and form high temperature refrigerant by compression pump; High temperature refrigerant carries out exchange heat with outer flow through the recirculated water of the endothermic tube 5 of heat exchanger II by the condenser 4 of heat exchanger II, the heat containing in refrigerant is heated recirculated water, thereby realize the recirculated water that the recirculated water of low temperature is converted to high temperature, make to absorb the heat converting and be stored in hot water from low grade heat energy, and the hot water that collection is obtained deposits in hot water storage tank.After the refrigerant of the condenser 4 of the heat exchanger II of flowing through is cooling, then to the evaporimeter 3 of heat exchanger I, carrying out secondary heat conversion through expansion valve circular flow.
During the endothermic tube of the circulating water of user side outside (being the cold water in cold water storage tank) the heat exchanger II of flowing through, after the heat containing in refrigerant in absorption heat exchanger II condenser 4 becomes circulating hot water, circulating hot water flows in hot water storage tank and lays in, water temperature regulater is by being arranged on the water temperature that hot water storage tank's outlet detected that the temperature sensor of hot water storage tank's delivery port can be real-time, because the heat in low-grade heat source is unstable, the hot water temperature that therefore can come to heat pump conversion by hot water storage tank carries out primary temperature equalization.After temperature sensor monitors arrives the numerical value of hot water storage tank's leaving water temperature, water temperature regulater can carry out water temperature adjusting according to the needed hot water output temperature of active user.The process that water temperature regulates regulates cold water mix valve and electric heater to regulate water temperature by water temperature regulater, if hot water storage tank's delivery port coolant-temperature gage is too high, by cold water mix valve, from cold water storage tank, directly inject a certain amount of cold water to hot-and-cold water mixer, guarantee user's water temperature constant; If hot water storage tank's leaving water temperature is too low, by electric heater, to flowed into the water of electric heater by hot-and-cold water mixer, heat, to guarantee that the water temperature of output reaches user's requirement.
Water temperature regulater operation principle is: temperature sensor exports the water temperature signal of telecommunication by the hot water storage tank who detects and delivers to single-chip microcomputer, after single-chip microcomputer compares the water temperature of the temperature signal of this input and user's setting, if the coolant-temperature gage of hot water storage tank's outlet is too low, the single-chip microcomputer of water temperature regulater sends instruction to electric heater control circuit, start electric heater and heat flowed into the water of electric heater by hot-and-cold water mixer, and guarantee that the water temperature of output reaches user's requirement; If it is too high that temperature sensor detects hot water storage tank's delivery port coolant-temperature gage, the single-chip microcomputer of water temperature regulater sends instruction to decoder, valve controling circuit, start cold water mix valve and from cold water storage tank, directly inject a certain amount of cold water to hot-and-cold water mixer, guarantee user's water temperature constant.Smaller in order to ensure the temperature fluctuation of user's water, need the accurately aperture of control cold water mix valve, prevent from injecting cold water too much or very few.Like this open mode of cold water mix valve is designed to 16 apertures, the valve opening of cold water mix valve is followed successively by valve opening 1 ~ valve opening 16 from being closed to open completely, and wherein valve opening 1 represents complete shut-down, and valve opening 16 represents standard-sized sheet.When hot water storage tank's leaving water temperature is too high, scope according to set water temperature with the difference size of actual measurement water temperature, single-chip microcomputer sends instruction to decoder, decoder is exported corresponding valve opening value to valve controling circuit, by valve controling circuit, controlled the action of cold water mix valve, realized the constant adjusting to water temperature.
The hot water of output can directly connect other external user device.Simultaneously, in order to guarantee that the outside water yield can circulate normally, in whole thermal water utilization device, user need to supplement the cool water quantity equating with the heat outputting water yield by cold water input port, or user forms a cyclic utilization system by the hot water port of output and cold water input port.In the present embodiment, endothermic tube 5 other ends of heat exchanger II are connected with a delivery port of cold water storage tank, can constantly in cyclic utilization system, add cold water.
As variation of the present utility model, the structure of water temperature regulater forms the cited form of above-described embodiment that is not limited to, also can be other structure composition with identical function, as long as the conversion of doing all belongs to category of the present utility model in scope of the present utility model.
Claims (2)
1. a low grade heat energy recycling device, it is characterized in that, this low grade heat energy recycling device comprises heat exchanger I, compression pump, heat exchanger II, expansion valve and water temperature invariant control system, heat exchanger I comprises heat release pipe and evaporimeter, heat exchanger II comprises condenser and endothermic tube, the heat release pipe two ends of heat exchanger I are connected with delivery port with the water inlet of low-grade heat source respectively, compression pump input is connected with the evaporimeter output of heat exchanger I, compression pump output is connected with the condenser input of heat exchanger II, the input of expansion valve is connected with the condenser output of heat exchanger II, the output of expansion valve is connected with the evaporimeter input of heat exchanger I, described water temperature invariant control system comprises hot water storage tank, temperature sensor, water temperature regulater, cold water mix valve, hot-and-cold water mixer, electric heater and cold water storage tank, endothermic tube one end of heat exchanger II is connected with hot water storage tank's water inlet, the endothermic tube other end of heat exchanger II is connected with a delivery port of cold water storage tank, hot water storage tank's delivery port is connected with one of them water inlet of hot-and-cold water mixer, cold water mix valve is connected between another water inlet of hot-and-cold water mixer and another delivery port of cold water storage tank, the water inlet of electric heater is connected with the delivery port of hot-and-cold water mixer, temperature sensor is arranged on hot water storage tank's delivery port, temperature sensor is connected with the input of water temperature regulater by circuit, the output of water temperature regulater is connected with cold water mix valve and electric heater respectively by circuit.
2. low grade heat energy recycling device as claimed in claim 1, it is characterized in that, described water temperature regulater comprises single-chip microcomputer, decoder, valve controling circuit, electric heater control circuit, described temperature sensor is connected with the input of single-chip microcomputer, the output of single-chip microcomputer is connected with the input of decoder and the input of electric heater control circuit respectively, the output of electric heater control circuit is connected with electric heater by circuit, the output of decoder is connected with the input of valve controling circuit, the output of valve controling circuit is connected with cold water mix valve by circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476642.XU CN203478688U (en) | 2013-08-06 | 2013-08-06 | Low-grade heat energy recycling utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476642.XU CN203478688U (en) | 2013-08-06 | 2013-08-06 | Low-grade heat energy recycling utilization device |
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| Publication Number | Publication Date |
|---|---|
| CN203478688U true CN203478688U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320476642.XU Withdrawn - After Issue CN203478688U (en) | 2013-08-06 | 2013-08-06 | Low-grade heat energy recycling utilization device |
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| Country | Link |
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| CN (1) | CN203478688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423916A (en) * | 2013-08-06 | 2013-12-04 | 柳州职业技术学院 | Low-grade heat energy recycling device |
| CN108534271A (en) * | 2018-04-18 | 2018-09-14 | 梅尚幸 | A kind of cool-heat-exchanger system |
-
2013
- 2013-08-06 CN CN201320476642.XU patent/CN203478688U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423916A (en) * | 2013-08-06 | 2013-12-04 | 柳州职业技术学院 | Low-grade heat energy recycling device |
| CN108534271A (en) * | 2018-04-18 | 2018-09-14 | 梅尚幸 | A kind of cool-heat-exchanger system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150429 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150429 |