CN213631728U

CN213631728U - Heat energy recovery device for sewage waste heat

Info

Publication number: CN213631728U
Application number: CN202022268366.0U
Authority: CN
Inventors: 刘金生; 商永
Original assignee: Qinhuangdao Changfeng Taihe New Energy Co ltd
Current assignee: Qinhuangdao Changfeng Taihe New Energy Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-07-06
Anticipated expiration: 2030-10-13

Abstract

The utility model discloses a heat recovery unit of sewage waste heat relates to the heat exchange device field, to the relatively poor problem of current sewage waste heat recovery unit working efficiency, now proposes following scheme, and it includes a jar body, the jar body is vertical form, the top of the jar body is matchd and is installed the sewage pipe, just the internal cavity that has seted up of jar, the sewage pipe is the intercommunication with the cavity, just the heat exchange tube of installation is matchd to the cavity internal, the outer wall of the jar body is matchd and is installed little circulating device, just little circulating device package pure water pipe, drainage device is installed in the bottom matching of the jar body, just drainage device includes drain pipe, wet return and blow off pipe, the heat exchange pipe is the heliciform along vertical direction and distributes, just the both ends of heat exchange tube all run through in the jar body. The utility model discloses novel structure, and the device simple structure, the operation automation and high-efficient stable, the effectual relatively poor problem of current sewage waste heat recovery device working efficiency of having solved.

Description

Heat energy recovery device for sewage waste heat

Technical Field

The utility model relates to a heat exchange device field especially relates to a heat recovery unit of sewage waste heat.

Background

The waste heat recovery device has the advantages that a large amount of water resources are required to be used in most industrial production activities, when sewage is discharged, not only are the water resources consumed, but also part of sewage is required by a production process, a large amount of heat is contained, the environment can be damaged by direct discharge, energy is wasted, and therefore the waste heat in the sewage is very necessary to be recycled.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of heat recovery unit of sewage waste heat has solved the relatively poor problem of current sewage waste heat recovery unit working efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a heat recovery unit of sewage waste heat, includes a jar body, the jar body is vertical form, the top of the jar body matches and installs the sewage pipe, just the internal cavity that has seted up of jar, the sewage pipe is the intercommunication with the cavity, just the heat exchange tube is installed in the cavity matching, the outer wall of the jar body matches and installs little circulating device, just little circulating device package pure water pipe, the bottom of the jar body matches and installs drainage device, just drainage device includes drain pipe, wet return and blow off pipe.

Preferably, the heat exchange tube is the heliciform along vertical direction and distributes, just the both ends of heat exchange tube all run through in the jar body, the both ends of heat exchange tube all are the feed through form with the pure water pipe, just the pure water pipe is located and matches between the both ends of heat exchange tube and has concatenated water pump, pure water thermometer and circulating valve, the top of pure water pipe matches and has concatenated the water intaking valve.

Preferably, the outer wall of the circumference of the tank body is provided with a sewage thermometer in a matching way, and a probe of the sewage thermometer extends into the cavity.

Preferably, the top of drain pipe and wet return all is the intercommunication form with the heat exchange tube, just the drain pipe is located between the water inlet of water pump and the wet return, the top and the jar body of blow off pipe are sealing connection, just the blow off pipe is the intercommunication with the cavity.

Preferably, the drain pipe is connected with a drain valve in series in a matching mode, the water return pipe is connected with a water return valve in series in a matching mode, and the drain pipe is connected with a drain valve in series in a matching mode.

Preferably, the blow-off pipe is connected in series with a one-way valve in a matching manner, and the blow-off valve is positioned between the one-way valve and the tank body.

The utility model has the advantages that:

1. the device keeps in the form of high fever sewage through jar body for the heat exchange tube has abundant heat transfer time, and then makes the heat transfer can fully go on.

2. The device is through closing return valve and water intaking valve, opens the circulating valve simultaneously, starts the water pump and makes the pure water in the heat exchange tube carry out the microcirculation through heat exchange tube, water pump, circulating valve and a section pure water pipe to the extension heat time resumes the normality and carries after the pure water temperature reaches the transport standard, and the effectual utilization ratio that improves the sewage waste heat of this little circulating system.

3. When the production cycle is finished, the heat exchange pipe and the pure water pipe can be flushed through the drain pipe and the drain valve.

To sum up, the device simple structure, the operation is automatic and high-efficient stable, the effectual relatively poor problem of current sewage waste heat recovery device working efficiency of having solved.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a sectional view of the internal structure of the present invention.

Fig. 3 is a cross-sectional view of the can body of fig. 1 about a-a according to the present invention.

Reference numbers in the figures: 1. a tank body; 2. a sewage pipe; 3. a cavity; 4. a heat exchange pipe; 5. a pure water pipe; 6. a water inlet valve; 7. a water pump; 8. a pure water thermometer; 9. a circulation valve; 10. a sewage thermometer; 11. a drain pipe; 12. a drain valve; 13. a water return pipe; 14. a water return valve; 15. a blow-off pipe; 16. a one-way valve; 17. a blowoff valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a heat recovery device for waste heat of sewage, comprises a tank body 1, wherein the tank body 1 is vertical, a sewage pipe 2 is installed on the top end of the tank body 1 in a matching manner, a cavity 3 is formed in the tank body 1, the sewage pipe 2 is communicated with the cavity 3, a heat exchange pipe 4 is installed in the cavity 3 in a matching manner, a small circulation device is installed on the outer wall of the tank body 1 in a matching manner, the small circulation device comprises a pure water pipe 5, a drainage device is installed at the bottom end of the tank body 1 in a matching manner, the drainage device comprises a drain pipe 11, a return water pipe 13 and a drain pipe 15, the heat exchange pipe 4 is spirally distributed along the vertical direction, two ends of the heat exchange pipe 4 are all penetrated through the tank body 1, two ends of the heat exchange pipe 4 are all communicated with the pure water pipe 5, and the pure water pipe 5 is positioned between two, Pure water thermometer 8 and circulating valve 9, the top of pure water pipe 5 matches and has concatenated water intaking valve 6, the circumference outer wall of the jar body 1 matches and installs sewage thermometer 10, just in sewage thermometer 10's probe extends to cavity 3, the top of drain pipe 11 and wet return 13 all is the intercommunication form with heat exchange tube 4, just drain pipe 11 is located between the water inlet of water pump 7 and wet return 13, the top and the jar body 1 of blow off pipe 15 are sealing connection, just blow off pipe 15 is the intercommunication with cavity 3, drain pipe 11 matches and has concatenated drain valve 12, just wet return 13 matches and has concatenated return valve 14, blow off pipe 15 matches and has concatenated blowoff valve 17, blow off pipe 15 matches and has concatenated check valve 16, just blowoff valve 17 is located between check valve 16 and the jar body 1.

The working principle is as follows: in the embodiment 1, when high-temperature sewage enters the tank body 1 through the sewage pipe 2 for temporary storage (the volume of the tank body 1 is set according to actual production requirements), the blow-down valve 17 is closed, when the sewage level is high, the blow-down valve is automatically opened for water level control, the water inlet valve 6 is opened, the circulating valve 9 is closed, the water discharge valve 12 is closed, the water return valve 14 is opened, and pure water enters the heat exchange pipe 4 through the pure water pipe 5, exchanges heat with the sewage and then is conveyed to water using equipment through the water return pipe 13 and the water return valve 14;

in embodiment 2, after the sewage in the tank 1 is subjected to heat exchange for a period of time, the temperature of the sewage is continuously reduced (determined by the sewage thermometer 10), so that the heating speed of the pure water in the heat exchange tube 4 is gradually reduced, and finally the temperature of the pure water cannot meet the temperature standard required by production, at the moment, pure water conveying is suspended, the water return valve 14 and the water inlet valve 6 are closed, the circulating valve 9 is opened, the water pump 7 is started, so that the pure water in the heat exchange tube 4 is subjected to small circulation through the heat exchange tube 4, the water pump 7, the circulating valve 9 and a section of pure water tube 5, so that the heating time is prolonged, normal conveying is resumed (determined by the pure water thermometer 8) after the temperature of the pure water reaches the conveying standard, and the steps are repeated until the temperature of the sewage in the tank cannot meet the heating requirement of the small;

embodiment 3, when a certain fluid product is transported in the heat exchange tube 4, and the production cycle is finished, the heat exchange tube 4 and the pure water tube 5 can be flushed through the drain tube 11 and the drain valve 12.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a heat recovery unit of sewage waste heat, includes a jar body (1), its characterized in that, jar body (1) is vertical form, the top of jar body (1) is matchd and is installed sewage pipe (2), just cavity (3) have been seted up in jar body (1), sewage pipe (2) are the intercommunication with cavity (3), just heat exchange tube (4) are installed in the matching in cavity (3), the outer wall of jar body (1) matches and installs little circulating device, just little circulating device package pure water pipe (5), drainage device is installed in the bottom matching of jar body (1), just drainage device includes drain pipe (11), wet return (13) and blow off pipe (15).

2. The sewage waste heat energy recovery device according to claim 1, wherein the heat exchange tubes (4) are spirally distributed along a vertical direction, both ends of the heat exchange tubes (4) penetrate through the tank body (1), both ends of the heat exchange tubes (4) are communicated with the pure water tubes (5), the pure water tubes (5) are positioned between both ends of the heat exchange tubes (4) and are connected with the water pump (7), the pure water thermometer (8) and the circulating valve (9) in series in a matching manner, and the top ends of the pure water tubes (5) are connected with the water inlet valve (6) in series in a matching manner.

3. The device for recovering the heat energy of the waste heat of the sewage according to claim 1, wherein a sewage thermometer (10) is fittingly installed on the outer circumferential wall of the tank body (1), and a probe of the sewage thermometer (10) extends into the cavity (3).

4. The sewage waste heat energy recovery device according to claim 1, wherein the top ends of the drain pipe (11) and the return pipe (13) are both communicated with the heat exchange pipe (4), the drain pipe (11) is located between the water inlet of the water pump (7) and the return pipe (13), the top end of the drain pipe (15) is hermetically connected with the tank body (1), and the drain pipe (15) is communicated with the cavity (3).

5. The sewage waste heat energy recovery device according to claim 1, wherein the drain pipe (11) is connected in series with a drain valve (12) in a matching manner, the water return pipe (13) is connected in series with a water return valve (14) in a matching manner, and the sewage discharge pipe (15) is connected in series with a sewage discharge valve (17) in a matching manner.

6. The sewage waste heat energy recovery device according to claim 5, wherein the blow-off pipe (15) is connected in series with a one-way valve (16) in a matching manner, and the blow-off valve (17) is located between the one-way valve (16) and the tank body (1).