CN203068793U - Sewage waste heat recovery device - Google Patents
Sewage waste heat recovery device Download PDFInfo
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- CN203068793U CN203068793U CN 201220640077 CN201220640077U CN203068793U CN 203068793 U CN203068793 U CN 203068793U CN 201220640077 CN201220640077 CN 201220640077 CN 201220640077 U CN201220640077 U CN 201220640077U CN 203068793 U CN203068793 U CN 203068793U
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Abstract
The utility model relates to a sewage waste heat recovery device which comprises an evaporator, a refrigerant compressor, a condenser, a controller and a water tank, wherein the water tank is provided with a liquid level controller. Treated sewage passes through a stop valve and a flow control valve in sequence and flows into the evaporator, a first side outlet of the evaporator is communicated with a sewage pipe network, a second side inlet of the evaporator is communicated with a first side outlet of the condenser through an expansion valve, a second side outlet of the evaporator is communicated with a first side inlet of the condenser through the refrigerant compressor, a second side inlet of the condenser is communicated with a tap water supply network or a heating network through a heating circulating pumping set and the water tank in sequence, a second side outlet the condenser is communicated with a hot water user through the water tank and a water-delivering pumping set in sequence, a pressure sensor is arranged on a second side outlet part of the evaporator, and an output end of the controller is connected with an automatic flow regulating valve. The sewage waste heat recovery device has the advantages that heat loss is small and energy utilization rate is high, and the sewage waste heat recovery device can be widely used in a waste heat recovery system.
Description
Technical field
The utility model relates to the heat recovery technology, particularly relates to a kind of sewage remaining energy retracting device.
Background technology
Along with Development of China's Urbanization strengthens, the quantity of municipal wastewater increases day by day, and these sewage bring the increasing pressure for the normal operation in city.Generally, after the sewage water treatment method that adopts physical method, chemical method and biochemical method to combine was handled municipal wastewater, water quality reached relevant criterion, can be used as the usefulness of cleaning, irrigation.But, in the practical application, owing to have 20 ℃ ~ 30 ℃ waste heat in the sewage after handling, so directly use treated sewage can cause the loss of heat.
This shows, in the prior art, have the problem that thermal loss is big, energy utilization rate is lower in the sewage disposal process.
Summary of the invention
In view of this, main purpose of the present utility model is to provide the sewage remaining energy that a kind of thermal loss is little, energy utilization rate is higher retracting device.
In order to achieve the above object, the technical scheme that the utility model proposes is:
A kind of sewage remaining energy retracting device, comprise for to from the treated sewage of sewage treatment plant and the evaporimeter that carries out heat exchange from the cold-producing medium of condenser, for the cold medium compressor to compressing through the cold-producing medium that gasifies after the heat exchange, be used for passing through the condenser that refrigerant compressed and running water or heating recirculated water carry out heat exchange, be used for by the control of evaporimeter air pressure inside value through the stable controller of refrigerant temperature after the heat exchange, be used for carry out the water tank of flow-dividing control from the running water of outside or heating recirculated water and the running water that advanced heat exchange at condenser or heating recirculated water; Wherein, water tank has and prevents the fluid level controller that causes water to overflow owing to water level is too high;
Treated sewage from sewage treatment plant enters the import of evaporimeter primary side by stop valve, flow control valve successively, and the outlet of evaporimeter primary side is communicated with sewage network; The import of evaporimeter secondary side is communicated with by expansion valve with the outlet of condenser primary side, and the outlet of evaporimeter secondary side is communicated with by cold medium compressor with the import of condenser primary side; The import of condenser secondary side is communicated with outside tap water supply net or heating net by heat cycles pump group, water tank successively, and the outlet of condenser secondary side is communicated with the hot water user by water tank, conveying pump group successively; Evaporimeter secondary side exit is provided with the pressure sensor that evaporimeter air pressure inside value is sent to controller, and controller output end is connected to motor valve.
In sum, in the sewage remaining energy retracting device described in the utility model, after condenser primary side cold-producing medium enters the evaporimeter secondary side, carry out heat exchange with the treated sewage from sewage treatment plant of evaporimeter primary side; In evaporimeter, after the part of waste heat that the treated sewage of cold-producing medium absorption carries, by the gaseous state that liquid state is vaporizated into and liquid equality of temperature is pressed together; The cold-producing medium of gaseous state further raises with pressure through cold medium compressor compression back temperature, enters the running water of condenser primary side and condenser secondary side or the recirculated water that heats carries out heat exchange through the gaseous refrigerant of overcompression; Behind the running water or heating recirculated water process water tank flow-dividing control through the running water of heat exchange or heat recirculated water and external complement, running water or heating recirculated water through heat exchange enter the hot water user, and the running water of external complement or heating recirculated water enter condenser and carries out heat exchange.This shows that sewage remaining energy retracting device described in the utility model can extract the waste heat in the sewage more fully, and the waste heat that extracts is used for the hot water user with further utilization, so the utlity model has the characteristics that thermal loss is little, energy utilization rate is higher.
Description of drawings
Fig. 1 is that first kind of sewage remaining energy retracting device described in the utility model formed structural representation.
Fig. 2 is that second kind of sewage remaining energy retracting device described in the utility model formed structural representation.
Fig. 3 is the composition structural representation of controller described in the utility model.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and instantiation the utility model is described in further detail.
Fig. 1 is that first kind of sewage remaining energy retracting device described in the utility model formed structural representation.As shown in Figure 1, sewage remaining energy retracting device described in the utility model comprises for to from the treated sewage of sewage treatment plant and the evaporimeter that carries out heat exchange from the cold-producing medium of condenser, for the cold medium compressor to compressing through the cold-producing medium that gasifies after the heat exchange, be used for passing through the condenser that refrigerant compressed and running water or heating recirculated water carry out heat exchange, be used for by the control of evaporimeter air pressure inside value through the stable controller of refrigerant temperature after the heat exchange, be used for carry out the water tank of flow-dividing control from the running water of outside or heating recirculated water and the running water that advanced heat exchange at condenser or heating recirculated water; Wherein, water tank has and prevents the fluid level controller that causes water to overflow owing to water level is too high;
Treated sewage from sewage treatment plant enters the import of evaporimeter primary side by stop valve, flow control valve successively, and the outlet of evaporimeter primary side is communicated with sewage network; The import of evaporimeter secondary side is communicated with by expansion valve with the outlet of condenser primary side, and the evaporimeter secondary side mouth of a river is communicated with by cold medium compressor with the import of condenser primary side; The import of condenser secondary side is communicated with outside tap water supply net or heating net by heat cycles pump group, water tank successively, and the outlet of condenser secondary side is communicated with the hot water user by water tank, conveying pump group successively; Evaporimeter secondary side exit is provided with the pressure sensor that evaporimeter air pressure inside value is sent to controller, and controller output end is connected to motor valve.
In a word, in the sewage remaining energy retracting device described in the utility model, after condenser primary side cold-producing medium enters the evaporimeter secondary side, carry out heat exchange with the treated sewage from sewage treatment plant of the water of conduct of evaporimeter primary side.In evaporimeter, after the part of waste heat that cold-producing medium absorption sewage carries, by the gaseous state that liquid state is vaporizated into and liquid equality of temperature is pressed together.The cold-producing medium of gaseous state further raises with pressure through cold medium compressor compression back temperature, enters the running water of condenser primary side and condenser secondary side or the recirculated water that heats carries out heat exchange through the gaseous refrigerant of overcompression.In condenser, the condenser primary side after the running water of the gaseous refrigerant of overcompression and condenser secondary side or heating recirculated water carry out heat exchange, being liquefied through the gaseous refrigerant of overcompression is liquid refrigerant.Liquid refrigerant after being liquefied flows out by the outlet of condenser primary side, and flow through expansion downstream pressure and temperature all are lowered, and afterwards, the cold-producing medium after pressure and temperature all reduce enters the evaporimeter secondary side.Behind the running water or heating recirculated water process water tank flow-dividing control through the running water of heat exchange or heat recirculated water and external complement, running water or heating recirculated water through heat exchange enter the hot water user, and the running water of external complement or heating recirculated water enter condenser and carries out heat exchange.Entire sewage waste heat recovery process is gone round and begun again carries out heat exchange.This shows that sewage remaining energy retracting device described in the utility model can extract the waste heat in the sewage more fully, and the waste heat that extracts is used for the hot water user with further utilization, so the utlity model has the characteristics that thermal loss is little, energy utilization rate is higher.
Fig. 2 is that second kind of sewage remaining energy retracting device described in the utility model formed structural representation.As shown in Figure 2, sewage remaining energy retracting device described in the utility model is exported to the water inlet pipe of described stop valve and described evaporimeter at described evaporimeter primary side by sewage treatment plant and once measures and also be provided with bypass regulator valve between the water pipe.In the practical application, adopt manual mode to regulate bypass regulator valve, can control to a certain extent and enter the treated sewage water yield from sewage treatment plant that evaporimeter is once surveyed.
In the utility model, be the sewage through secondary or tertiary treatment from the treated sewage of sewage treatment plant.
In the utility model, the material of evaporimeter and structure have good compatibility to the mechanical admixture in the water and chemical impurity.
In the utility model, enter evaporimeter before, the temperature of cold-producing medium is that 5 ℃ ~ 20 ℃, pressure are 350 ~ 570kPa.In evaporimeter, after water and cold-producing medium carried out heat exchange, one time coolant-temperature gage descended 5 ℃ ~ 15 ℃, and cold-producing medium is vaporizated into equality of temperature with the gaseous state of pressing by liquid state after absorbing heat.
In the utility model, after cold-producing medium compressed through cold medium compressor, refrigerant pressure was increased to 1682kPa, and temperature is increased to and is not less than 90 ℃.
In the utility model, in condenser, carry out heat exchange through refrigerant compressed and from the running water of water tank or the cycling use of water that heats, the water in the water tank heats up gradually, and remains on 55 ℃ ~ 60 ℃; Simultaneously, after the cold-producing medium release heat, the gaseous liquefied liquid state that is is arranged, for circulation is next time got ready.
Fig. 3 is the composition structural representation of controller described in the utility model.As shown in Figure 3, controller described in the utility model comprises memory, comparator; Wherein,
Memory is used for the standard pressure value that storage sets in advance.
Comparator, compare for the evaporimeter air pressure inside value of described pressure sensor transmission, the standard pressure value that reads from memory: when evaporimeter air pressure inside value overgauge atmospheric pressure value, reduce the aperture control signal to described motor valve transmission; When evaporimeter air pressure inside value during less than the standard pressure value, sending to described motor valve increases the aperture control signal.
Described motor valve, be used for receive that comparator sends reduce the aperture control signal time, reduce self aperture to reduce the water inflow one time; When receiving the increase aperture control signal that comparator sends, increase self aperture to increase the water inflow one time.
In the utility model, the controller regulating effect is for guaranteeing that the refrigerant temperature through heat exchange remains on 5 ℃ ~ 20 ℃ in evaporimeter.In the practical application, if the refrigerant temperature through heat exchange is on the low side in evaporimeter, then can cause sewage remaining energy retracting device operating efficiency described in the utility model to reduce; If the refrigerant temperature through heat exchange in evaporimeter is higher, then can influence the normal operation of cold medium compressor.In addition, running water or heating recirculated water since season etc. environment reason, hot water user's water consumption is difference to some extent also, by sewage remaining energy retracting device described in the utility model, can control the refrigerant temperature of process heat exchange in evaporimeter more accurately, use with convenient.
In the practical application, through under the constant situation of the refrigerant temperature of heat exchange, the condensation temperature of cold-producing medium is more high in evaporimeter, and the shaft power of cold medium compressor is more big, that is, power consumption is more many; Under the constant situation of the condensation temperature of cold-producing medium, more high through the refrigerant temperature of heat exchange, it is more big that the condenser secondary side exports the heating capacity that heat can the user to.
In the utility model, described cold-producing medium is HFC-134a R134a.
In sum, more than be preferred embodiment of the present utility model only, be not for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. sewage remaining energy retracting device, it is characterized in that, described waste-heat recovery device comprises for to from the treated sewage of sewage treatment plant and the evaporimeter that carries out heat exchange from the cold-producing medium of condenser, for the cold medium compressor to compressing through the cold-producing medium that gasifies after the heat exchange, be used for passing through the condenser that refrigerant compressed and running water or heating recirculated water carry out heat exchange, be used for by the control of evaporimeter air pressure inside value through the stable controller of refrigerant temperature after the heat exchange, be used for carry out the water tank of flow-dividing control from the running water of outside or heating recirculated water and the running water that advanced heat exchange at condenser or heating recirculated water; Wherein, water tank has and prevents the fluid level controller that causes water to overflow owing to water level is too high;
Treated sewage from sewage treatment plant enters the import of evaporimeter primary side by stop valve, flow control valve successively, and the outlet of evaporimeter primary side is communicated with sewage network; The import of evaporimeter secondary side is communicated with by expansion valve with the outlet of condenser primary side, and the outlet of evaporimeter secondary side is communicated with by cold medium compressor with the import of condenser primary side; The import of condenser secondary side is communicated with outside tap water supply net or heating net by heat cycles pump group, water tank successively, and the outlet of condenser secondary side is communicated with the hot water user by water tank, conveying pump group successively; Evaporimeter secondary side exit is provided with the pressure sensor that evaporimeter air pressure inside value is sent to controller, and controller output end is connected to motor valve.
2. sewage remaining energy retracting device according to claim 1 is characterized in that, is exported to the water inlet pipe of described stop valve and described evaporimeter at described evaporimeter primary side by sewage treatment plant and once measures and also be provided with bypass regulator valve between the water pipe.
3. sewage remaining energy retracting device according to claim 1 and 2 is characterized in that, described controller comprises memory, comparator; Wherein,
Memory is used for the standard pressure value that storage sets in advance;
Comparator, compare for the evaporimeter air pressure inside value of described pressure sensor transmission, the standard pressure value that reads from memory: when evaporimeter air pressure inside value overgauge atmospheric pressure value, reduce the aperture control signal to described motor valve transmission; When evaporimeter air pressure inside value during less than the standard pressure value, sending to described motor valve increases the aperture control signal;
Described motor valve, be used for receive that comparator sends reduce the aperture control signal time, reduce self aperture to reduce the water inflow one time; When receiving the increase aperture control signal that comparator sends, increase self aperture to increase the water inflow one time.
4. sewage remaining energy retracting device according to claim 1 and 2 is characterized in that, the temperature of the cold-producing medium that gasifies after the heat exchange of described process is 5～20 ℃.
5. sewage remaining energy retracting device according to claim 1 and 2 is characterized in that, described cold-producing medium is HFC-134a R134a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640077 CN203068793U (en) | 2012-11-28 | 2012-11-28 | Sewage waste heat recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220640077 CN203068793U (en) | 2012-11-28 | 2012-11-28 | Sewage waste heat recovery device |
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| CN203068793U true CN203068793U (en) | 2013-07-17 |
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| CN 201220640077 Expired - Fee Related CN203068793U (en) | 2012-11-28 | 2012-11-28 | Sewage waste heat recovery device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927685A (en) * | 2012-11-28 | 2013-02-13 | 北京天一众合环境工程有限公司 | Waste sewage heat recycling device |
| CN104266352A (en) * | 2014-08-08 | 2015-01-07 | 王盛洪 | Multifunctional high-efficiency sewage heat recovery type hot water system |
| CN109813166A (en) * | 2019-01-23 | 2019-05-28 | 新奥数能科技有限公司 | The energy recycling system and control method of sewage |
| CN110057102A (en) * | 2019-04-30 | 2019-07-26 | 江苏恒信诺金科技股份有限公司 | The Waste Heat Reuse method of heat pump |
-
2012
- 2012-11-28 CN CN 201220640077 patent/CN203068793U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927685A (en) * | 2012-11-28 | 2013-02-13 | 北京天一众合环境工程有限公司 | Waste sewage heat recycling device |
| CN104266352A (en) * | 2014-08-08 | 2015-01-07 | 王盛洪 | Multifunctional high-efficiency sewage heat recovery type hot water system |
| CN104266352B (en) * | 2014-08-08 | 2017-02-08 | 深圳渥特思能源有限公司 | Multifunctional high-efficiency sewage heat recovery type hot water system |
| CN109813166A (en) * | 2019-01-23 | 2019-05-28 | 新奥数能科技有限公司 | The energy recycling system and control method of sewage |
| CN110057102A (en) * | 2019-04-30 | 2019-07-26 | 江苏恒信诺金科技股份有限公司 | The Waste Heat Reuse method of heat pump |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20201128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |