CN209745047U - Heat recovery device for hot exhaust - Google Patents
Heat recovery device for hot exhaust Download PDFInfo
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- CN209745047U CN209745047U CN201920273419.2U CN201920273419U CN209745047U CN 209745047 U CN209745047 U CN 209745047U CN 201920273419 U CN201920273419 U CN 201920273419U CN 209745047 U CN209745047 U CN 209745047U
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- hot exhaust
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Abstract
The utility model discloses a hot exhaust heat recovery device, including heat transfer mechanism, domestic water heating mechanism and electric cabinet, heat transfer mechanism includes spiral heat exchanger, spiral heat exchanger sets up in the outside of hot gas pipeline, hot gas pipeline communicates with each other with hot exhaust supply pipeline, domestic water heating mechanism includes plate heat exchanger, plate heat exchanger communicates with each other with the clean water supply mechanism of first outside, heat transfer mechanism's water return circuit is through plate heat exchanger, hot water in the spiral heat exchanger heats the pure water that comes from the clean water supply mechanism of first outside through plate heat exchanger, plate heat exchanger's exit end is connected with the water pump, the water pump connects living water terminal. The device can satisfy the requirement of reducing hot exhaust temperature, can satisfy the requirement of preparing domestic hot water again, and whole device's degree of automation is high, can save the equipment cost that extra preparation cold water is used for cooling hot exhaust and the equipment cost of extra preparation domestic hot water, realizes energy saving and emission reduction, brings the facility for production and life.
Description
Technical Field
The utility model relates to a heat recovery unit specifically is a hot exhaust heat recovery unit.
Background
China is developed in industry, a large number of enterprises have a large number of boilers or incinerating devices, a large number of gases need to be discharged, a large number of hot exhaust gases are directly discharged into the atmosphere, the atmosphere is polluted, the atmosphere is heated, meanwhile, heat energy is directly discharged, and a large number of resources are wasted. In view of the adverse effects of directly discharging hot exhaust gas, some enterprises have developed equipment for application to hot exhaust gas. Most of the existing devices applied to hot exhaust have single functions, and only have a cooling function, or only have a function of preparing domestic hot water (namely, clean hot water which can be used for daily life). For the equipment which only has the cooling function and is applied to hot exhaust, when the hot exhaust of the boiler is cooled, extra cooling equipment is needed to prepare refrigerant water for heat exchange, and the preparation of the refrigerant water needs to consume a large amount of extra electric energy, cannot recycle heat, and does not have the function of preparing domestic hot water. However, the apparatus for hot exhaust gas, which has only a function of preparing hot water for life, cannot provide additional cold water for cooling hot exhaust gas, and does not have a cooling function.
Disclosure of Invention
The utility model aims to solve the technical problem that, not enough to prior art provides a hot exhaust heat recovery unit, can satisfy the requirement that reduces hot exhaust temperature, can satisfy again and prepare domestic hydrothermal requirement, the degree of automation of whole cooling heat exhaust and secondary heating pure water is high, can save extra preparation cold water simultaneously and be used for cooling off hot carminative equipment cost and extra preparation domestic hydrothermal equipment cost, realize energy saving and emission reduction, bring the facility for production and life.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a hot exhaust heat recovery unit, includes heat transfer mechanism, domestic water heating mechanism and electric cabinet, heat transfer mechanism include spiral heat exchanger, spiral heat exchanger set up in the outside of hot gas pipeline, hot gas pipeline and hot exhaust supply pipeline communicate with each other, domestic water heating mechanism include plate heat exchanger, plate heat exchanger and first outside clean water supply mechanism communicate with each other, heat transfer mechanism's water return circuit pass through plate heat exchanger, spiral heat exchanger in the hot water pass through plate heat exchanger heating come from first outside clean water supply mechanism's pure water, plate heat exchanger's exit end be connected with the water pump, the water pump connect living water terminal.
The utility model discloses hot exhaust heat recovery unit directly uses the pure water of outside clean water supply mechanism, and this pure water can be for domestic normal atmospheric temperature water, does not need extra equipment to carry out the preparation of cold water. The spiral heat exchanger in the heat exchange mechanism absorbs heat of hot exhaust in a hot gas pipeline, and when the hot exhaust is cooled, purified water from an external clean water supply mechanism is secondarily heated through the plate heat exchanger in the domestic water heating mechanism, so that hot water is supplied to the domestic water terminal, and the hot water use requirement of daily life is met. The utility model discloses the degree of automation of hot exhaust heat recovery unit's whole cooling heat exhaust and secondary heating pure water is high, can save extra preparation cold water and be used for cooling off hot carminative equipment cost and extra preparation living hydrothermal equipment cost, realizes energy saving and emission reduction, offers convenience for production and life.
Preferably, a first constant pressure expansion water tank, a first pressure sensor and a plurality of first temperature sensors are respectively and fixedly connected to a water loop of the heat exchange mechanism, the first constant pressure expansion water tank is connected with a first electromagnetic valve through a first water filter, the first pressure sensor is connected with the first electromagnetic valve, and the first electromagnetic valve is connected with the first external clean water supply mechanism. The first electromagnetic valve is used for controlling the switch of the external clean water supply mechanism. The first temperature sensor is used for detecting the temperature of a water loop of the heat exchange mechanism so as to facilitate temperature regulation. The first constant pressure expansion water tank, the first pressure sensor, the first electromagnetic valve and the first temperature sensor are matched for use, and are used for controlling the water pressure and the water temperature of a water loop of the heat exchange mechanism and ensuring the stability of the flow rate, the pressure and the water temperature in the water loop.
Preferably, a water drain valve is mounted and connected to a water circuit of the heat exchange mechanism. The drain valve is closed in the normal use process of the heat exhaust heat recovery device, and when the heat exhaust heat recovery device needs to be overhauled or washed, the drain valve is opened to drain water.
Preferably, a second constant-pressure expansion water tank, an electric three-way valve, a second pressure sensor and a plurality of second temperature sensors are respectively and fixedly connected to a water loop of the domestic water heating mechanism, the second constant-pressure expansion water tank is connected with a second electromagnetic valve through a second water filter, the second electromagnetic valve is connected with a second external clean water supply mechanism, the electric three-way valve is respectively connected with the second pressure sensor and the second temperature sensors, and the second pressure sensor is connected with the second electromagnetic valve. The second constant-pressure expansion water tank, the electric three-way valve, the second pressure sensor and the second temperature sensor are matched for use, so that the stability of the flow and the pressure in a water loop of the domestic water heating mechanism can be ensured, and the preparation amount of domestic hot water prepared by the domestic water heating mechanism and the stability of water temperature are ensured.
Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses a hot exhaust heat recovery device directly uses outside clean water supply mechanism's pure water, and this pure water can not need extra equipment to carry out the preparation of cold water for domestic normal atmospheric temperature water. The spiral heat exchanger in the heat exchange mechanism absorbs heat of hot exhaust in a hot gas pipeline, and when the hot exhaust is cooled, purified water from an external clean water supply mechanism is secondarily heated through the plate heat exchanger in the domestic water heating mechanism, so that hot water is supplied to the domestic water terminal, and the hot water use requirement of daily life is met. The utility model discloses the degree of automation of hot exhaust heat recovery unit's whole cooling heat exhaust and secondary heating pure water is high, can save extra preparation cold water and be used for cooling off hot carminative equipment cost and extra preparation living hydrothermal equipment cost, realizes energy saving and emission reduction, offers convenience for production and life.
Drawings
Fig. 1 is a schematic structural view of the heat recovery device for hot exhaust gas of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Embodiment 1's hot exhaust heat recovery unit, as shown in fig. 1, including heat exchange mechanism, domestic water heating mechanism and electric cabinet 6, heat exchange mechanism includes spiral heat exchanger 1, spiral heat exchanger 1 sets up the outside at hot gas pipeline 2, hot gas pipeline 2 communicates with each other with hot exhaust supply pipeline (not shown in the figure), domestic water heating mechanism includes plate heat exchanger 3, plate heat exchanger 3 communicates with each other with first outside clean water supply mechanism 16, heat exchange mechanism's water return circuit passes through plate heat exchanger 3, hot water in spiral heat exchanger 1 heats the pure water that comes from first outside clean water supply mechanism 16 through plate heat exchanger 3, plate heat exchanger 3's exit end is connected with water pump 4, water pump 4 connects living water terminal 5.
The difference between the hot exhaust gas heat recovery device of embodiment 2 and embodiment 1 is that in embodiment 2, a first constant pressure expansion tank 11, a first pressure sensor 12, two first temperature sensors 13, and a drain valve 17 are respectively installed and connected to a water circuit of a heat exchange mechanism, the first constant pressure expansion tank 11 is connected to a first electromagnetic valve 15 through a first water filter 14, the first pressure sensor 12 is connected to the first electromagnetic valve 15, and the first electromagnetic valve 15 is connected to a first external clean water supply mechanism 16.
The difference between the hot exhaust heat recovery device of embodiment 3 and embodiment 2 is that in embodiment 3, a second constant pressure expansion tank 31, an electric three-way valve 32, a second pressure sensor 33 and two second temperature sensors 34 are respectively installed and connected to the water circuit of the domestic water heating mechanism, the second constant pressure expansion tank 31 is connected to a second electromagnetic valve 36 through a second water filter 35, the second electromagnetic valve 36 is connected to a second external clean water supply mechanism 37, the electric three-way valve 32 is respectively connected to the second pressure sensor 33 and the two second temperature sensors 34, and the second pressure sensor 33 is connected to the second electromagnetic valve 36.
The working principle and process of the hot exhaust heat recovery device of example 3 are as follows: hot exhaust gas from a hot exhaust gas supply pipeline enters a hot gas pipeline 2, the spiral heat exchanger 1 absorbs heat of the hot exhaust gas in the hot gas pipeline 2 and heats cold water in the spiral heat exchanger 1 by utilizing the heat exchange principle, and the cold water absorbs the heat of the hot exhaust gas so as to reduce the temperature of the hot exhaust gas; hot water in the spiral heat exchanger 1 carries out the secondary heating through plate heat exchanger 3 to the pure water that comes from the outside clean water supply mechanism 37 of second, the temperature in the spiral heat exchanger 1 reduces simultaneously, and by the continuous hot exhaust reheating through hot gas pipeline 2, so circulation, the realization is to the automatic cycle cooling of hot exhaust and the continuous pure water that comes from the outside clean water supply mechanism 37 of second of heating, provide flow, water pressure and the stable hot water of temperature to domestic water terminal 5, satisfy daily life's hot water operation requirement. In addition, because the temperature of hot exhaust is higher, after the heat exchange, clean water in the water loop of the heat exchange mechanism is slightly gasified, and the water pressure in the water loop of the heat exchange mechanism can be ensured to be stable through the first constant-pressure expansion water tank 11, so that the reliability of cooling the hot exhaust is ensured. In practical application, the heat exchange mechanism needs to be periodically exhausted for maintenance.
Claims (4)
1. A kind of hot exhaust heat recovery unit, characterized by: including heat transfer mechanism, domestic water heating mechanism and electric cabinet, heat transfer mechanism include spiral heat exchanger, spiral heat exchanger set up in the outside of hot gas pipeline, hot gas pipeline and hot exhaust supply pipeline communicate with each other, domestic water heating mechanism include plate heat exchanger, plate heat exchanger communicate with each other with first outside clean water supply mechanism, heat transfer mechanism's water return circuit pass through plate heat exchanger, spiral heat exchanger in the hot water pass through plate heat exchanger heating come from first outside clean water supply mechanism's pure water, plate heat exchanger's exit end be connected with the water pump, the water pump connect living water terminal.
2. A hot exhaust gas heat recovery device according to claim 1, wherein: a first constant pressure expansion water tank, a first pressure sensor and a plurality of first temperature sensors are respectively installed and connected on a water loop of the heat exchange mechanism, the first constant pressure expansion water tank is connected with a first electromagnetic valve through a first water filter, the first pressure sensor is connected with the first electromagnetic valve, and the first electromagnetic valve is connected with the first external clean water supply mechanism.
3. A hot exhaust gas heat recovery device according to claim 1, wherein: and a water return circuit of the heat exchange mechanism is provided with a water drain valve.
4. A hot exhaust gas heat recovery device according to claim 1, 2 or 3, wherein: the domestic water heating mechanism is characterized in that a second constant-pressure expansion water tank, an electric three-way valve, a second pressure sensor and a plurality of second temperature sensors are respectively and fixedly connected to a water loop of the domestic water heating mechanism, the second constant-pressure expansion water tank is connected with a second electromagnetic valve through a second water filter, the second electromagnetic valve is connected with a second external clean water supply mechanism, the electric three-way valve is respectively connected with the second pressure sensor and the second temperature sensors, and the second pressure sensor is connected with the second electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273419.2U CN209745047U (en) | 2019-03-05 | 2019-03-05 | Heat recovery device for hot exhaust |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920273419.2U CN209745047U (en) | 2019-03-05 | 2019-03-05 | Heat recovery device for hot exhaust |
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| CN209745047U true CN209745047U (en) | 2019-12-06 |
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| CN201920273419.2U Active CN209745047U (en) | 2019-03-05 | 2019-03-05 | Heat recovery device for hot exhaust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL445964A1 (en) * | 2023-08-31 | 2024-04-08 | Politechnika Lubelska | System for measuring the cooling temperature and securing the sewage treatment system from a self-service car wash |
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2019
- 2019-03-05 CN CN201920273419.2U patent/CN209745047U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL445964A1 (en) * | 2023-08-31 | 2024-04-08 | Politechnika Lubelska | System for measuring the cooling temperature and securing the sewage treatment system from a self-service car wash |
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