CN216770274U - Heating power station waste heat utilization equipment - Google Patents

Abstract

The application discloses heating power station waste heat utilization equipment, including inner chamber cavity be used for providing the thermal-insulated environment of heat preservation box, install in the box inner chamber and be used for placing first water pipe and the second water pipe that carry out the heat exchange cold fluid, the cover is established and is used for flowing in the main line of waste heat in the first water pipe outside and establish the lateral conduit that is used for the partial pressure in the second water pipe outside with main line intercommunication and cover. This application has the waste heat and carries out the heat exchange more fully in the device, has improved waste heat recovery utilization ratio's effect.

Description

Heating power station waste heat utilization equipment

Technical Field

The application relates to the technical field of waste heat recovery and utilization, in particular to a heating power station waste heat utilization device.

Background

The heating station is a connecting station of a heat supply network and users in the urban centralized heating system, and has the functions of adjusting and converting the heating medium conveyed by the heat supply network according to the working condition of the heat supply network and different conditions of the users by adopting different connecting modes, distributing the heating medium to the user system so as to meet the needs of the users, and carrying out centralized metering and detecting the quantity and parameters of the heating medium.

The heating station divides direct supply station and supplies the station between according to the heat supply form, and present central heating is with supplying the station between as leading, but the waste heat recovery device structure of supplying the station between the heating station among the correlation technique is single, and the waste heat is generally because the temperature is higher, pressure is great, after getting into recovery unit's single pipeline, the velocity of flow is very fast for cold water is heated evenly inadequately, and the waste heat also can not obtain abundant recycle, has caused the waste of usable resource.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that the waste heat of a heating power station cannot be fully recycled in the related art, the application provides a waste heat utilization device of the heating power station.

The application provides a heating power station waste heat utilization equipment adopts following technical scheme:

the utility model provides a heating power station waste heat utilization equipment, includes that inner chamber cavity is used for providing the box of heat preservation thermal-insulated environment, installs in the box inner chamber and is used for placing first water pipe and the second water pipe that carries out the heat exchange cold fluid, overlaps to establish the main line that is used for flowing in the waste heat outside first water pipe and establishes the lateral conduit that is used for the partial pressure outside the second water pipe with main line intercommunication and cover.

Through adopting above-mentioned technical scheme, waste heat admission gear carries out the heat exchange with the cold fluid, and when the temperature of waste heat was too high, pressure is great and lead to the admission gear velocity of flow too fast, open the branch pipeline, make a small part of waste heat walk the branch pipeline and carry out the heat exchange, has reduced the velocity of flow of waste heat, makes the abundant heat exchange that carries out of waste heat in the device, has improved the recycle ratio of waste heat.

Optionally, the cold fluid performing heat exchange in the second water pipe is cold water, and the cold fluid performing heat exchange in the first water pipe is warm water flowing out of the second water pipe.

Through adopting above-mentioned technical scheme, waste heat distribution compares in the main line less in the lateral line, so set up cold water and warm water respectively and correspond lateral line and main line and carry out the heat exchange, guaranteed the validity of heat exchange, and promoted the waste heat and carried out the utilization ratio of heat exchange.

Optionally, the first water pipe and the second water pipe are both a clip-shaped elbow and are provided with multiple bends.

Through adopting above-mentioned technical scheme, first water pipe and second water pipe all are provided with many times and return the shape and buckle, have increased and have carried out the area of contact of heat exchange with the waste heat to carry out more abundant recycle to the waste heat.

Optionally, the main pipeline is a clip-shaped channel which is matched with the first water pipe in a bending manner, and the branch pipeline is a clip-shaped channel which is matched with the second water pipe in a bending manner.

Through adopting above-mentioned technical scheme for the pipeline of circulation waste heat corresponds the setting with the water pipe of placing the cold fluid, forms the same circulation route, thereby makes being heated of first water pipe and second water pipe more evenly thoroughly, further improves the recycle ratio to the waste heat.

Optionally, flow baffles which extend towards the first water pipe and are used for changing the flow path of the waste heat flow are uniformly arranged in the main pipeline; and flow baffles which extend towards the second water pipe and are used for changing the flow path of the waste heat flow are uniformly arranged in the branch pipelines.

Through adopting above-mentioned technical scheme, the circulation of waste heat in trunk line and lateral conduit is through keeping off the regular separation of flowing the board, and the waste heat forms wavy fluctuation to the area of contact of increase waste heat and first water pipe makes the heat exchange go on more effectively thoroughly.

Optionally, a rock wool heat insulation layer for heat insulation is filled in the box body.

Through adopting above-mentioned technical scheme, pack the rock wool insulating layer in the box, slowed down the waste heat and carried out invalid dissipation loss from the trunk line and the lateral conduit outside, the waste heat mainly carries out the heat exchange with the cold fluid in the water pipe to play the guarantee effect to the high recycle of waste heat.

Optionally, the outlets of the main pipeline and the branch pipeline are both provided with filter screens.

Through adopting above-mentioned technical scheme, the filter screen carries out filtration treatment to the steam that finally flows out main line and lateral conduit, makes to arrange to the device external air and keeps clean, has promoted operational environment's cleanliness factor.

Optionally, a movable door convenient for maintenance is arranged on one side of the box body.

Through adopting above-mentioned technical scheme, the dodge gate can be opened closed, when later stage needs maintain the box inside, convenient operation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up with the communicating lateral conduit of trunk line, when the too high temperature of waste heat, pressure are great and lead to the entering device velocity of flow too fast, open the lateral conduit, make a small part of waste heat walk the lateral conduit and carry out the heat exchange, effectively reduced the velocity of flow of waste heat in the trunk line, make the abundant heat exchange that carries on of waste heat in the device, improved the recycle ratio of waste heat.

2. Through setting up the first water pipe, the second water pipe that the shape of returning was buckled and the circulation pipeline that returns the shape of returning that arranges with the water pipe is corresponding, when the waste heat gets into the pipeline and carries out the heat exchange, increased first water pipe, second water pipe and waste heat and carried out the area of contact of heat exchange to carry out more abundant recycle to the waste heat.

Drawings

Fig. 1 is a schematic structural diagram of a waste heat utilization device of a thermal power station in an embodiment of the application.

Description of reference numerals: 1. a box body; 11. a first water inlet; 12. a first water outlet; 13. a second water inlet; 14. a second water outlet; 15. a waste heat inlet; 16. a waste heat main outlet; 17. a waste heat auxiliary outlet; 2. a first water pipe; 3. a second water pipe; 4. a main pipeline; 5. a branch line; 6. a flow baffle plate; 7. a pressure dividing valve; 8. a filter screen; 9. rock wool insulating layer.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a waste heat utilization device of a heating station, and the device is characterized by comprising a box body 1, a first water pipe 2, a second water pipe 3, a main pipeline 4 and branch pipelines 5, wherein the box body 1 is of a closed structure with a hollow inner cavity, the first water pipe 2 and the second water pipe 3 are used for placing cold fluid for heat exchange and are arranged in the inner cavity of the box body 1, the main pipeline 4 is arranged around the outer side of the first water pipe 2, and the branch pipelines 5 are arranged around the second water pipe 3; a rock wool heat insulation layer 9 is filled in the inner cavity of the box body 1, and plays a role in heat preservation and heat insulation for the main pipeline 4 and the branch pipelines 5; a movable door is arranged on one side of the box body 1 and can be opened and closed, and the inside of the box body 1 is convenient to maintain and overhaul.

A first water inlet 11 penetrating to the inner cavity is formed in one side of the box body 1, a first water outlet 12 is formed in the other side of the box body, one end of the first water pipe 2 is communicated with the first water inlet 11, the other end of the first water pipe is communicated with the first water outlet 12, and a stop valve is installed at one end, close to the first water outlet 12, of the first water pipe 2; the first water pipe 2 is a stainless steel bent pipe which is bent for many times and is arranged inside the box body 1. The second water pipe 3 chooses for use stainless steel material, and is the same with 2 structures of first water pipe, and 3 both ends of second water pipe communicate respectively on second water inlet 13 and the second delivery port 14 that correspond the setting in the box 1 outside, and the stop valve is installed to the one end that the second water pipe 3 is close to second delivery port 14.

The outer side of the box body 1 is provided with a waste heat inlet 15 and a waste heat main outlet 16 respectively, two ends of the main pipeline 4 are communicated with the waste heat inlet 15 and the waste heat main outlet 16 respectively, the main pipeline 4 is matched with the first water pipe 2, the diameter of the main pipeline 4 is larger than the outer diameter of the first water pipe 2, and the main pipeline 4 is sleeved on the outer side of the first water pipe 2. The rigid coupling has on the main line 4 inner wall to be a plurality of fender stream boards 6 that the array distributes along the pipeline direction, keeps off stream board 6 protruding to first water pipe 2 direction, nevertheless leaves the clearance with first water pipe 2, and keeps off stream board 6 and set up to different heights, makes the circulation of waste heat in main line 4 form wavy fluctuation to increase waste heat and first water pipe 2's area of contact, make first water pipe 2 be heated more evenly.

One end of the branch pipeline 5 is communicated with the part, close to the waste heat inlet 15, of the main pipeline 4, a pressure dividing valve 7 is installed on the branch pipeline 5, and the other end of the branch pipeline 5 is correspondingly communicated with a waste heat auxiliary outlet 17 correspondingly arranged on the outer side of the box body 1. The branch pipeline 5 is arranged corresponding to the second water pipe 3 and sleeved outside the second water pipe 3. A plurality of flow baffles 6 which are distributed in an array along the pipeline direction are also arranged in the branch pipeline 5. The filter screens 8 are respectively arranged at the main waste heat outlet 16 and the auxiliary waste heat outlet 17 of the box body 1, and the waste heat in the box body 1 is discharged out of the box body 1 after being filtered by the filter screens 8.

The implementation principle of the embodiment of the application is as follows: when the pressure of the waste heat is too high and the flow rate is high, the partial pressure valve 7 is opened, part of the waste heat in the main pipeline 4 enters the branch pipeline 5 to exchange heat, the stop valve in the second water pipe 3 is closed, cold water flows in from the second water inlet 13, and the cold water is changed into warm water in the second water pipe 3 through heat exchange with the waste heat in the branch pipeline 5 and flows out to an external warm water tank from the second water outlet 14; the warm water in the external warm water tank is then conveyed to the first water inlet 11 to flow into the first water pipe 2, and continuously exchanges heat with the residual heat in the main pipeline 4, and the hot water is changed into hot water and then flows out from the first water outlet 12 for subsequent use.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (8)

1. The utility model provides a heating power station waste heat utilization equipment which characterized in that: including inner chamber cavity be used for providing heat preservation thermal-insulated environment box (1), install in box (1) inner chamber and be used for placing first water pipe (2) and second water pipe (3) that carry out the heat exchange cold fluid, the cover is established and is used for flowing into main line (4) of waste heat and establish branch pipeline (5) that are used for partial pressure with main line (4) intercommunication and cover in second water pipe (3) outside.

2. The heat station waste heat utilization device of claim 1, wherein: the cold fluid for heat exchange in the second water pipe (3) is cold water, and the cold fluid for heat exchange in the first water pipe (2) is warm water flowing out of the second water pipe (3).

3. The heat station waste heat utilization device of claim 1, wherein: the first water pipe (2) and the second water pipe (3) are both bent pipes which are bent in a shape of a Chinese character 'hui', and are provided with a plurality of bends.

4. The heat station waste heat utilization device of claim 3, wherein: the main pipeline (4) is a clip-shaped channel pipeline which is matched with the first water pipe (2) in a bending way, and the branch pipeline (5) is a clip-shaped channel pipeline which is matched with the second water pipe (3) in a bending way.

5. The heat station waste heat utilization device of claim 1, wherein: flow baffles (6) which extend towards the first water pipe (2) and are used for changing the flow path of the waste heat are uniformly arranged in the main pipeline (4); and flow baffles (6) which extend towards the second water pipe (3) and are used for changing the flow path of the waste heat are uniformly arranged in the branch pipelines (5).

6. The heat station waste heat utilization device of claim 1, wherein: the box body (1) is filled with a rock wool heat insulation layer (9) for heat insulation.

7. The heat station waste heat utilization device of claim 1, wherein: and filter screens (8) are respectively installed at the outlets of the main pipeline (4) and the branch pipelines (5).

8. The heat station waste heat utilization device of claim 1, wherein: one side of the box body (1) is provided with a movable door convenient for maintenance.

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