CN107935328A - A kind of sewage heat energy self-circulation system and its control method - Google Patents
A kind of sewage heat energy self-circulation system and its control method Download PDFInfo
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- CN107935328A CN107935328A CN201810029149.0A CN201810029149A CN107935328A CN 107935328 A CN107935328 A CN 107935328A CN 201810029149 A CN201810029149 A CN 201810029149A CN 107935328 A CN107935328 A CN 107935328A
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- water
- heat exchanger
- pump
- sewage
- heat
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
A kind of sewage heat energy self-circulation system of the present invention, including regulating reservoir, variable frequency lift pump, hair accumulator, biochemistry pool, clear water reserviors, production water booster pump, first-class heat exchanger, secondary heat exchanger, heat pump, water circulating pump.This sewage heat energy self-circulation system, by the way of heat exchanger and heat pump combination, as temperature gradually reduces, heat pump is not directly initiated, but sets one or more first-class heat exchanger to reduce energy consumption as transition, not only solved the problems, such as that effluent quality was not up to standard, but also saved the energy.
Description
Technical field
The invention belongs to environmental protection to save energy technology field, specifically, the present invention relates to a kind of sewage heat energy certainly
The circulatory system and its control method.
Background technology
In the process flow of municipal wastewater routine, the pretreatment of sewage, biological treatment and follow-up depth are generally included
Process flow.Wherein biochemical treatment is the main contaminant degradation process of municipal wastewater, its treatment effect is except by sewage itself
Biodegradability can influence outer, external condition such as temperature etc. also has it important influence.Especially in northern China, winter
Temperature is low, and duration length, directly results in sewage temperature less than 15 degrees Celsius, so that the activity of activated sludge substantially reduces, very
To the function of losing degradation of contaminant.By the way of the present invention is combined using heat exchanger and heat pump, binding time sequentially corresponding
Conversion and control, achievees the purpose that to maintain water process temperature, solves the winter biochemical treatment failure of northern sewage treatment plant, effluent quality
Problem not up to standard.
The content of the invention
The shortcomings that the purpose of the present invention is overcoming or improving the prior art, there is provided a kind of sewage heat energy self-circulation system, leads to
Cross by the way of heat exchanger and heat pump combination, the corresponding conversion and control of binding time sequentially, reaches and maintain water process temperature
Purpose, solve northern sewage treatment plant's winter biochemical treatment failure, effluent quality problem not up to standard.
A kind of sewage heat energy self-circulation system of the present invention, including regulating reservoir, variable frequency lift pump, hair accumulator, biochemistry
Pond, clear water reserviors, production water booster pump, first-class heat exchanger, secondary heat exchanger, heat pump, water circulating pump；The regulating reservoir water inlet connection
By pretreated raw sewage, there is variable frequency lift pump in regulating reservoir, the water outlet connection hair accumulator of variable frequency lift pump
Water inlet, the production mouth of a river of the hair accumulator are divided into two-way, connect the cooling water inlet of first-class heat exchanger, another way connection all the way
The 1# water inlets of biochemistry pool；The cooling water outlet of the first-class heat exchanger is divided into two-way, directly connects all the way with No. 2 entrances of biochemistry pool
Connect, the cold water inlet connection of another way and secondary heat exchanger；The 1# water inlets of the cooling water outlet connection biochemistry pool of secondary heat exchanger,
The water inlet of the water outlet connection clear water reserviors of biochemistry pool；The production mouth of a river of the clear water reserviors is divided into two-way, is connected all the way with floss hole
Connect, another way is connected by producing water booster pump with the heat source water inlet of the first-class heat exchanger；The heat source of the first-class heat exchanger
Water out is divided into two-way, is connected all the way with production water outlet, another way is connected with heat pump raw water inlet；The heat pump raw water outlet
It is connected with production water outlet, heat pump cycle water inlet is connected by the circulating water outlet of water circulating pump and secondary heat exchanger, heat pump
Circulating water outlet is connected with the circulation water inlet of secondary heat exchanger.
Autocontrol valve is equipped with each pipeline of the sewage heat energy self-circulation system.The first-class heat exchanger can be with
It is more parallel connections, according to the start and stop of each temperature, water quality adjustment first-class heat exchanger, the water inlet of the biochemistry pool is segmented into
1#, 2# or same water inlet or multiple water inlets.
The system is changed with time to adjust foundation with inflow temperature, is taken different recycle heat modes respectively, is reached
To the purpose of systems stabilisation water temperature.（1）When raw sewage water temperature is higher, at such as larger than 20 DEG C, it is good that sewage is in biochemical property
Temperature range, it is sent directly into follow-up biochemical treatment tank by elevator pump, carries out biological treatment.（2）With raw sewage
Water temperature gradually reduces, and when being such as in 15 DEG C ~ 20 DEG C, the biochemical property of sewage is deteriorated to exchange heat, it is necessary to start first-class heat exchanger.
Since the sewage temperature after processing is also in higher temperature, and raw sewage temperature is low, using the temperature difference between the two, using pair
Heat transfer technology is flowed, improves wastewater influent temperature.So can effectively slow down the time being lower into water water temperature, extend 1 year among
Biochemical processing time ratio, while the startup time for heat pump of delaying, reduce electricity consumption.（3）As raw sewage water temperature is into one
Step reduces, and when being such as less than 15 DEG C, sewage substantially loses bio-degradable performance, and is reduced with temperatures drive power,
Further lifting sewage temperature can not be achieveed the purpose that by the heat exchanger heat exchange between sewage, so starting heat pump at this time.
The origin of heat of heat pump is the water outlet Jing Guo first-class heat exchanger again after biochemical treatment, and heat pump draws biochemical production hydro-thermal amount heat cycles
Water, the heat of recirculated water pass to the sewage by first-class heat exchanger by secondary heat exchanger.Carried using the efficient heat of heat pump
Effect is risen, by the heat transfer in the production water after processing into raw sewage, achievees the purpose that to lift water temperature.With the adjusting of water temperature
It is not absolute, can is 20 °C, 18 °C etc. according to actual setting adjustable range.
The sewage heat energy self-circulation system of the present invention, by the way of heat exchanger and heat pump combination, binding time is sequentially
Corresponding conversion and control, achieve the purpose that to maintain water process temperature, solve northern sewage treatment plant's winter biochemical treatment failure, go out
Water water quality problem not up to standard.
Brief description of the drawings
Fig. 1, Fig. 2 are the schematic diagram of the sewage heat energy self-circulation system of two kinds of embodiments of the present invention.
Wherein：1- regulating reservoirs, 2- variable frequency lift pumps, 3- hair accumulators, 4,4A, 4B, 4C- first-class heat exchanger, 5-
Secondary heat exchanger, 6- heat pumps, 7- water circulating pumps, 8- biochemistry pools, 9- clear water reserviors, 10- production water booster pump, R1, R2, R3,
R4, R5, R6, R7, R8, R9, R1A, R1B, R1C, R2A, R2B, R2C are autocontrol valve.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention further illustrates.
Embodiment one：
As shown in Figure 1, a kind of sewage heat energy self-circulation system, including regulating reservoir 1, variable frequency lift pump 2, hair accumulator 3, level-one
Heat exchanger 4, secondary heat exchanger 5, heat pump 6, water circulating pump 7, biochemistry pool 8, clear water reserviors 9, production water booster pump 10 and autocontrol valve
Door R1, R2, R3, R4, R5, R6, R7, R8, R9.Its connection relation is as shown in Figure 1.
The system is changed with time to adjust foundation with inflow temperature,（1）When raw sewage water temperature is more than 20 DEG C, sewage
The temperature range good in biochemical property, valve R3, R4 are opened, and valve R1, R2, R5, R6, R7, R8, R9 are closed, source sewage
Follow-up biochemical treatment tank 8 is sent directly into by elevator pump, carries out biological treatment.Production water is directly discharged by R4（2）Work as original
When sewage water temperature is in 15 DEG C ~ 20 DEG C, the biochemical property of sewage is deteriorated to exchange heat, it is necessary to start first-class heat exchanger.At this moment beat
Valve opening door R1, R2, R7, R5, close valve R3, R4, R6, R8, R9, start production water booster pump 10, by biochemistry pool 8 and clear water reserviors
9 production water is pressurized through producing water booster pump 10, then is discharged after being exchanged heat by first-class heat exchanger 4, and raw water is by valve R1 by exchanging heat
After device biochemistry pool 8 is fed from 2# water inlets.（3）, cannot after being exchanged heat by first-class heat exchanger when raw sewage water temperature is less than 15 DEG C
Enough meet water temperature requirement, at this moment need to start heat pump 6 and secondary heat exchanger 5.At this moment valve R1, R2, R6, R8, R9 are opened, is closed
Valve R3, R4, R5, R7, start heat pump 6, production water booster pump 10 and water circulating pump 7, raw sewage is by first-class heat exchanger 4, two level
Heat exchanger 5 feeds biochemistry pool 8 after heating, clear water reserviors production water discharges after first-class heat exchanger 4 and heat pump 6, and heat pump 6 is from production water
Heat and heat cycles water are extracted, hot water is provided for secondary heat exchanger 5.Using the efficient heat castering action of heat pump, will handle
The heat transfer in production water afterwards achievees the purpose that to lift water temperature into raw sewage.
Embodiment two：
As shown in Fig. 2, a kind of sewage heat energy self-circulation system, including regulating reservoir 1, variable frequency lift pump 2, hair accumulator 3, level-one
Heat exchanger has three, is denoted as 4A, 4B and 4C, secondary heat exchanger 5, heat pump 6, water circulating pump 7, biochemistry pool 8, clear water reserviors 9, production
Water booster pump 10 and autocontrol valve R1A, R1B, R1C, R2A, R2B, R2C, R3, R4, R5, R6, R7, R8, R9.It, which is connected, closes
System is as shown in Figure 2.
The system is changed with time to adjust foundation with inflow temperature,（1）When raw sewage water temperature is more than 20 DEG C, sewage
The temperature range good in biochemical property, opens valve R3, R4, close valve R1A, R1B, R1C, R2A, R2B, R2C, R5,
R6, R7, R8, R9, raw sewage are sent directly into follow-up biochemical treatment tank 8 by elevator pump 2, carry out biological treatment.Produce water warp
R4 is crossed directly to discharge（2）When raw sewage water temperature is in 15 DEG C ~ 20 DEG C, the biochemical property of sewage is deteriorated to be changed, it is necessary to start level-one
Hot device exchanges heat.And can be with the change of temperature startup one, Liang Tai, three first-class heat exchangers, when three heat exchangers
When needing fully open, valve R1A, R1B, R1C, R2A, R2B, R2C, R7, R5 are opened, closes valve R3, R4, R6, R8, R9,
Start production water booster pump 10, be pressurized by the production water of biochemistry pool 8 and clear water reserviors 9 through producing water booster pump 10, then exchanged heat by level-one
Device 4A, 4B, 4C heat exchange after discharge, raw water by valve R1A after heat exchanger 4A, by valve R1B after heat exchanger 4B,
By valve R1C after heat exchanger 4C, biochemistry pool 8 is fed from 2# water inlets.（3）When raw sewage water temperature is less than 15 DEG C, lead to
Cross after first-class heat exchanger heat exchange it is impossible to meet water temperature requirement, at this moment need to start heat pump 6 and secondary heat exchanger 5.At this moment open
Valve R1A, R1B, R1C, R2A, R2B, R2C, R6, R8, R9, close valve R3, R4, R5, R7, start heat pump 6, production water booster pump
10 and water circulating pump 7, raw sewage feeds biochemistry pool 8, clear water after first-class heat exchanger 4A, 4B, 4C and secondary heat exchanger 5 are heated
Pond production water discharges after first-class heat exchanger 4A, 4B, 4C and heat pump 6, and heat pump 6 extracts heat and heat cycles water from production water,
Hot water is provided for secondary heat exchanger 5.Using the efficient heat castering action of heat pump, the heat transfer in the production water after processing is arrived
In raw sewage, achieve the purpose that to lift water temperature.
The sewage heat energy self-circulation system of the present invention, by the way of heat exchanger and heat pump combination, as temperature gradually drops
It is low, heat pump is not directly initiated, but set first-class heat exchanger to reduce energy consumption as transition, both solved effluent quality and do not reached
Target problem, and saved the energy.
Claims (5)
- A kind of 1. sewage heat energy self-circulation system, it is characterised in that：Including regulating reservoir 1, variable frequency lift pump 2, hair accumulator 3, First-class heat exchanger 4, secondary heat exchanger 5, heat pump 6, water circulating pump 7, biochemistry pool 8, clear water reserviors 9 and production water booster pump 10；1 water inlet of regulating reservoir is connected through pretreated raw sewage, there is variable frequency lift pump 2, frequency conversion lifting in regulating reservoir 1 The water inlet of the water outlet connection hair accumulator 3 of pump 2；The production mouth of a river of the hair accumulator 3 is divided into two-way, connects the cooling water inlet of first-class heat exchanger 4, another way connection all the way The 1# water inlets of biochemistry pool 8；The cooling water outlet of the first-class heat exchanger 4 is divided into two-way, is directly connected all the way with the 2# entrances of biochemistry pool 8, another way with The cold water inlet connection of secondary heat exchanger 5；The 1# water inlets of the cooling water outlet connection biochemistry pool 8 of the secondary heat exchanger 5, the water outlet connection clear water reserviors 9 of biochemistry pool 8 Water inlet；The production mouth of a river of the clear water reserviors 9 is divided into two-way, is connected all the way with floss hole, and another way is by producing water booster pump 10 and institute The heat source water inlet for stating first-class heat exchanger 4 is connected；The heat source water out of the first-class heat exchanger 4 is divided into two-way, is connected all the way with production water outlet, another way and heat pump 6 Raw water inlet is connected；6 raw water of the heat pump outlet is connected with production water outlet, and the circulation water inlet of heat pump 6 is changed by water circulating pump 7 with two level The circulating water outlet connection of hot device 5, the circulating water outlet of heat pump 6 are connected with the circulation water inlet of secondary heat exchanger 5.
- 2. it is equipped with autocontrol valve in each pipeline of the sewage heat energy self-circulation system.
- 3. the first-class heat exchanger 4 can be more parallel connections, according to the start and stop of each temperature, water quality adjustment first-class heat exchanger.
- 4. the water inlet of the biochemistry pool 8 is segmented into 1#, 2# or same water inlet or multiple water inlets.
- 5. the thermal energy self-circulation system, it is characterised in that：As temperature change adjusts the start and stop of heat exchanger and heat pump,（1）When When raw sewage water temperature is higher, sewage is in the good temperature range of biochemical property, and raw sewage is after elevator pump 2 is sent directly into Continuous biochemical treatment tank 8, carries out biological treatment；（2）When raw sewage water temperature gradually reduces, the biochemical property of sewage be deteriorated, it is necessary to Start first-class heat exchanger 4 to exchange heat；（3）As raw sewage water temperature further reduces, sewage substantially loses biochemical drop Performance is solved, and is reduced with temperatures drive power, further lifting sewage temperature can not be reached by the heat exchange between sewage The purpose of degree, starts heat pump 6 at this time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029149.0A CN107935328A (en) | 2018-01-12 | 2018-01-12 | A kind of sewage heat energy self-circulation system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029149.0A CN107935328A (en) | 2018-01-12 | 2018-01-12 | A kind of sewage heat energy self-circulation system and its control method |
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| Publication Number | Publication Date |
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| CN107935328A true CN107935328A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810029149.0A Withdrawn CN107935328A (en) | 2018-01-12 | 2018-01-12 | A kind of sewage heat energy self-circulation system and its control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109110973A (en) * | 2018-09-27 | 2019-01-01 | 戚汝常 | A kind of integrated sewage treating apparatus of recyclable heat-source energy |
| CN113149340A (en) * | 2021-03-24 | 2021-07-23 | 白果科技股份公司 | Device for thermal recycling of sewage treatment and implementation method |
| WO2022252110A1 (en) * | 2021-06-01 | 2022-12-08 | 王志猛 | Heat exchange device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428451A (en) * | 1977-08-04 | 1979-03-03 | Kubota Ltd | Method of denitrifying and purifying waste water |
| JP2002096085A (en) * | 2000-09-22 | 2002-04-02 | Sumitomo Heavy Ind Ltd | Water treatment method and device |
| CN104964483A (en) * | 2015-07-03 | 2015-10-07 | 中铁第四勘察设计院集团有限公司 | Heat recovery type sewage source heat pump system |
-
2018
- 2018-01-12 CN CN201810029149.0A patent/CN107935328A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428451A (en) * | 1977-08-04 | 1979-03-03 | Kubota Ltd | Method of denitrifying and purifying waste water |
| JP2002096085A (en) * | 2000-09-22 | 2002-04-02 | Sumitomo Heavy Ind Ltd | Water treatment method and device |
| CN104964483A (en) * | 2015-07-03 | 2015-10-07 | 中铁第四勘察设计院集团有限公司 | Heat recovery type sewage source heat pump system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109110973A (en) * | 2018-09-27 | 2019-01-01 | 戚汝常 | A kind of integrated sewage treating apparatus of recyclable heat-source energy |
| CN113149340A (en) * | 2021-03-24 | 2021-07-23 | 白果科技股份公司 | Device for thermal recycling of sewage treatment and implementation method |
| WO2022252110A1 (en) * | 2021-06-01 | 2022-12-08 | 王志猛 | Heat exchange device |
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Application publication date: 20180420 |