CN214747441U - Sewage waste heat recovery device - Google Patents
Sewage waste heat recovery device Download PDFInfo
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- CN214747441U CN214747441U CN202023167141.2U CN202023167141U CN214747441U CN 214747441 U CN214747441 U CN 214747441U CN 202023167141 U CN202023167141 U CN 202023167141U CN 214747441 U CN214747441 U CN 214747441U
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model relates to a sewage waste heat recovery device, it belongs to sewage treatment and energy-conserving field. The utility model comprises a clean water buffer tank, a water supply pump, a first valve, a second valve, a third valve, an aeration device, a heat exchanger, a fourth valve, a heat exchange device and a clean water recycling tank, wherein the clean water buffer tank is connected with the water supply pump; the outlet of the water supply pump is connected with the inlet of the heat exchanger, and the first valve is arranged between the outlet of the water supply pump and the inlet of the heat exchanger; the heat exchanger is arranged in the heat exchange device, the outlet of the heat exchanger is respectively connected with the clear water buffer tank and the clear water recycling tank, the second valve is arranged on the branch pipe from the clear water buffer tank, and the third valve is arranged on the branch pipe from the clear water recycling tank; the aeration device is arranged at the bottom of the heat exchange device; the fourth valve is arranged on a sewage draining pipeline at the bottom of the heat exchange device. The utility model has the advantages of simple and reasonable design, can effectively carry out waste heat recovery to sewage, have and prevent that heat transfer device is inside and heat exchanger surface adheres to impurity, satisfy the user demand.
Description
Technical Field
The utility model relates to a device especially relates to a sewage waste heat recovery device, and it belongs to sewage treatment and energy-conserving field.
Background
Various kinds of sewage containing higher heat can be produced in daily production and life, for example, a large amount of bathing wastewater can be produced by coal mine enterprises, more boiler blow-down water and other hydrophobic water can be produced by a thermal power plant, and the sewage is usually directly discharged, so that not only is the waste of water materials and the loss of energy caused, but also certain heat emission pollution is caused to the natural environment.
At the present stage, a patent is applied for sewage heat recovery, and a utility model patent named as a sewage heat recovery and heat supply device is disclosed in a Chinese patent with the publication number of CN210118815U, wherein the publication number of the Chinese patent is 28 days 02 and 2020; this patent application is retrieved and is carried out the heat supply and use through the heat pump to the heat of sewage, still has clear sewage flow, the unable control scheduling problem of temperature among the heat transfer process, so it still exists above-mentioned defect.
Therefore, the sewage waste heat recovery device capable of solving the problems of control of heat exchange water quantity, control of heat exchange temperature, adhesion of impurities to the heat exchanger and the like is particularly necessary.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is simple reasonable, and safe and reliable can effectively carry out waste heat recovery to sewage, and has the sewage waste heat recovery device who prevents the inside and heat exchanger surface adhesion impurity of heat transfer device.
The utility model provides a technical scheme that above-mentioned problem adopted is: this sewage waste heat recovery device, including clear water buffer tank, first flowmeter, second flowmeter, third flowmeter, fourth flowmeter, first water temperature sensor, working shaft, first valve, second valve, level gauge, second water temperature sensor, third water temperature sensor, fourth water temperature sensor, third valve, aeration equipment, heat exchanger, fourth valve, heat transfer device and clear water retrieval and utilization case, its characterized in that: the clear water buffer tank is connected with an inlet of the water supply pump, and the first water temperature sensor and the second flowmeter are both arranged between the clear water buffer tank and the water supply pump; the outlet of the water supply pump is connected with the inlet of the heat exchanger, and the first valve is arranged between the outlet of the water supply pump and the inlet of the heat exchanger; the heat exchanger is arranged in the heat exchange device, the outlet of the heat exchanger is respectively connected with the clean water buffer tank and the clean water recycling tank, the fourth water temperature sensor is arranged on an outlet main pipe of the heat exchanger, the second valve and the first flowmeter are arranged on a branch pipe from the clean water buffer tank, and the third valve and the fourth flowmeter are arranged on the branch pipe from the clean water recycling tank; the aeration device is arranged at the bottom of the heat exchange device; the fourth valve is arranged on a sewage discharge pipeline at the bottom of the heat exchange device; the third flow meter and the third water temperature sensor are arranged on a sewage inlet pipeline of the heat exchange device; the second water temperature sensor is arranged on a sewage outlet pipeline of the heat exchange device; the liquid level meter is arranged at the top of the heat exchange device.
Preferably, the heat exchanger also comprises an access hole, and the access hole is arranged at the top of the heat exchanger; the heat exchange device is convenient to overhaul and maintain internal equipment.
Preferably, the heat exchanger is made of stainless steel, such as titanium steel.
Preferably, the first valve, the second valve and the third valve of the present invention are electrically operated valves or pneumatically operated valves.
Preferably, the first flowmeter, the second flowmeter, the third flowmeter, and the fourth flowmeter of the present invention are electromagnetic flowmeters, orifice-plate flowmeters, ultrasonic flowmeters, or the like.
Compared with the prior art, the utility model, have following advantage and effect: the waste heat recovery device has the advantages that the whole structure is simple and reasonable in design and convenient to operate, waste heat of sewage can be effectively recovered, impurities are prevented from being attached to the interior of the heat exchange device and the surface of the heat exchanger, the flow of the sewage and clean water can be effectively controlled in real time, and the like, so that the waste heat of the sewage can be effectively recovered; the access hole is formed in the top of the heat exchange device, so that the equipment in the heat exchange device can be conveniently overhauled and maintained; when the water temperature of the fourth water temperature sensor meets the recovery requirement, the third valve can be opened, and the second valve is closed at the same time, so that the recovery of the waste heat of the sewage is realized; when the water temperature of the fourth water temperature sensor does not meet the recycling requirement, temperature regulation and control can be realized through two modes.
Drawings
Fig. 1 is a schematic structural diagram of a sewage waste heat recovery device according to an embodiment of the present invention.
In the figure: the fresh water recycling system comprises a fresh water buffer tank 1, a first flow meter 2, a second flow meter 3, a third flow meter 4, a fourth flow meter 5, a first water temperature sensor 6, a water supply pump 7, a first valve 8, a second valve 9, a liquid level meter 10, an access hole 11, a second water temperature sensor 12, a third water temperature sensor 13, a fourth water temperature sensor 14, a third valve 15, an aeration device 16, a heat exchanger 17, a fourth valve 18, a heat exchange device 19 and a fresh water recycling tank 20.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples
Referring to fig. 1, the sewage waste heat recovery device of the embodiment includes a clean water buffer tank 1, a first flow meter 2, a second flow meter 3, a third flow meter 4, a fourth flow meter 5, a first water temperature sensor 6, a water supply pump 7, a first valve 8, a second valve 9, a liquid level meter 10, an access hole 11, a second water temperature sensor 12, a third water temperature sensor 13, a fourth water temperature sensor 14, a third valve 15, an aeration device 16, a heat exchanger 17, a fourth valve 18, a heat exchange device 19 and a clean water recycling tank 20.
In the embodiment, the fresh water buffer tank 1 is connected with the inlet of the water supply pump 7, and the first water temperature sensor 6 and the second flowmeter 3 are both arranged between the fresh water buffer tank 1 and the water supply pump 7; an outlet of the water supply pump 7 is connected to an inlet of the heat exchanger 17, and a first valve 8 is installed between the outlet of the water supply pump 7 and the inlet of the heat exchanger 17.
The heat exchanger 17 of the embodiment is installed inside the heat exchanging device 19, the outlet of the heat exchanger 17 is respectively connected with the clean water buffer tank 1 and the clean water recycling tank 20, and the fourth water temperature sensor 14 is installed on the outlet main pipe of the heat exchanger 17.
The second valve 9 and the first flow meter 2 are mounted on the branch to the fresh water buffer tank 1 and the third valve 15 and the fourth flow meter 5 are mounted on the branch to the fresh water reuse tank 20 in this embodiment.
The aeration device 16 of the embodiment is arranged at the bottom of the heat exchange device 19; the fourth valve 18 is installed on the sewage discharge pipeline at the bottom of the heat exchange device 19.
The third flow meter 4 and the third water temperature sensor 13 are installed on a sewage inlet pipeline of the heat exchanging device 19 in this embodiment.
The second water temperature sensor 12 of the present embodiment is installed on the sewage outlet pipeline of the heat exchanging device 19; the gauge 10 is mounted on top of the heat exchange means 19.
The access hole 11 of the embodiment is arranged at the top of the heat exchange device 19; the maintenance of the internal equipment of the heat exchange device 19 is convenient.
The heat exchanger 17 of this embodiment is made of stainless steel, such as titanium steel.
The first valve 8, the second valve 9, and the third valve 15 of the present embodiment are electrically operated valves, pneumatically operated valves, or the like.
In the present embodiment, the first flow meter 2, the second flow meter 3, the third flow meter 4, and the fourth flow meter 5 are electromagnetic flow meters, orifice flow meters, ultrasonic flow meters, or the like.
The pipe material connected with each other in the recovery device of the embodiment adopts PVE, PVP or stainless steel pipe.
The control principle that this embodiment has realized sewage waste heat is: the clear water is through setting up at the inside heat exchanger 17 of heat transfer device 19, absorb the sewage waste heat in the heat transfer device 19 through heat exchanger 17, can control the heat that the clear water was retrieved, thereby realize the accurate recovery of sewage waste heat, mainly through observing first water temperature sensor 6 in real time, third water temperature sensor 13, fourth water temperature sensor 14, when the temperature of fourth water temperature sensor 14 satisfied the recovery requirement, can open third valve 15, close second valve 9 simultaneously, the realization is to the recovery of sewage waste heat.
When the water temperature of the fourth water temperature sensor 14 does not meet the recycling requirement, temperature regulation and control can be realized through the following two ways:
a) the opening degree of the first valve 8 is adjusted, and the flow of the second flowmeter 3 is observed, so that the flow of the clean water is reduced, and the rising of the temperature of the clean water is realized.
b) And (3) closing the third valve 15, opening the second valve 9, returning the clean water to the clean water buffer tank 1 for circulation again, and when the water temperature of the fourth water temperature sensor 14 meets the recycling requirement.
c) The opening degree of the first valve 8 is adjusted, the flow of the second flow meter 3 is observed, the flow of the clean water is reduced, and the second valve 9 is opened to a certain opening degree, so that part of the clean water returns to the clean water buffer tank 1, and the temperature of the clean water discharged to the clean water recycling tank 20 meets the requirement.
The working process of the sewage waste heat recovery device of the embodiment is as follows:
(1) the clear water is injected into the clear water buffer tank 1, when the water level of the clear water buffer tank reaches half or more, the first valve 8 and the second valve 9 are opened, the third valve 15 is closed, the water supply pump 7 is started at the same time, the clear water passes through the heat exchanger 17 and finally returns to the clear water buffer tank 1, and therefore closed circulation is formed.
(2) The fourth valve 18 of the sewage draining outlet at the bottom of the heat exchanging device 19 is closed, sewage enters the heat exchanging device 19 through the sewage inlet, and when the sewage is discharged from the sewage outlet of the heat exchanging device 19 after being filled with the sewage, the aeration device 16 can be started to aerate the sewage inside the heat exchanging device 19, so that impurities in the sewage are prevented from being deposited on the pipe wall inside the heat exchanging device 19 and the pipe wall of the heat exchanger 17, and the heat exchanging effect is prevented from being influenced.
(3) Observing the temperature of the fourth water temperature sensor 14, when the temperature reaches a certain value (meeting the recycling requirement and the like), opening the third valve 15, closing the second valve 9, and discharging the heat-exchanged clean water to the clean water recycling tank 20. When the temperature of the fourth water temperature sensor 14 does not meet the requirement, the temperature of the clean water can be adjusted in the two ways, so that the reuse temperature of the clean water meets the requirement.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a sewage waste heat recovery device, includes clear water buffer tank (1), first flowmeter (2), second flowmeter (3), third flowmeter (4), fourth flowmeter (5), first water temperature sensor (6), working shaft (7), first valve (8), second valve (9), level gauge (10), second water temperature sensor (12), third water temperature sensor (13), fourth water temperature sensor (14), third valve (15), aeration equipment (16), heat exchanger (17), fourth valve (18), heat transfer device (19) and clear water retrieval and utilization case (20), its characterized in that: the fresh water buffer tank (1) is connected with an inlet of the water supply pump (7), and the first water temperature sensor (6) and the second flowmeter (3) are both arranged between the fresh water buffer tank (1) and the water supply pump (7); the outlet of the water supply pump (7) is connected with the inlet of the heat exchanger (17), and the first valve (8) is arranged between the outlet of the water supply pump (7) and the inlet of the heat exchanger (17); the heat exchanger (17) is arranged in the heat exchange device (19), the outlet of the heat exchanger (17) is respectively connected with the clean water buffer tank (1) and the clean water recycling tank (20), the fourth water temperature sensor (14) is arranged on an outlet main pipe of the heat exchanger (17), the second valve (9) and the first flow meter (2) are arranged on a branch pipe from the clean water buffer tank (1), and the third valve (15) and the fourth flow meter (5) are arranged on a branch pipe from the clean water recycling tank (20); the aeration device (16) is arranged at the bottom of the heat exchange device (19); the fourth valve (18) is arranged on a sewage draining pipeline at the bottom of the heat exchange device (19); the third flow meter (4) and the third water temperature sensor (13) are arranged on a sewage inlet pipeline of the heat exchange device (19); the second water temperature sensor (12) is arranged on a sewage outlet pipeline of the heat exchange device (19); the liquid level meter (10) is arranged on the top of the heat exchange device (19).
2. The sewage waste heat recovery device according to claim 1, wherein: still include access hole (11), access hole (11) set up in heat transfer device (19) top.
3. The sewage waste heat recovery device according to claim 1, wherein: the heat exchanger (17) is made of stainless steel.
4. The sewage waste heat recovery device according to claim 1, wherein: the first valve (8), the second valve (9) and the third valve (15) adopt electric valves or pneumatic valves.
5. The sewage waste heat recovery device according to claim 1, wherein: the first flowmeter (2), the second flowmeter (3), the third flowmeter (4) and the fourth flowmeter (5) adopt electromagnetic flowmeters, orifice plate flowmeters or ultrasonic flowmeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167141.2U CN214747441U (en) | 2020-12-25 | 2020-12-25 | Sewage waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023167141.2U CN214747441U (en) | 2020-12-25 | 2020-12-25 | Sewage waste heat recovery device |
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| Publication Number | Publication Date |
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| CN214747441U true CN214747441U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023167141.2U Active CN214747441U (en) | 2020-12-25 | 2020-12-25 | Sewage waste heat recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665436A (en) * | 2020-12-25 | 2021-04-16 | 华电电力科学研究院有限公司 | Sewage waste heat recovery device and working method thereof |
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2020
- 2020-12-25 CN CN202023167141.2U patent/CN214747441U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665436A (en) * | 2020-12-25 | 2021-04-16 | 华电电力科学研究院有限公司 | Sewage waste heat recovery device and working method thereof |
| CN112665436B (en) * | 2020-12-25 | 2024-07-30 | 华电电力科学研究院有限公司 | Sewage waste heat recovery device and working method thereof |
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