CN217358121U

CN217358121U - Cooling water waste heat recovery device for coal power enterprises

Info

Publication number: CN217358121U
Application number: CN202220973000.XU
Authority: CN
Inventors: 齐强; 苏重明
Original assignee: Weitebo Tianjin New Energy Technology Co ltd
Current assignee: Weitebo Tianjin New Energy Technology Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-09-02
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a cooling water waste heat recovery device for coal and electricity enterprises, which relates to the field of thermal power generation and aims to solve the problems that the automation degree of manual filling of cooling water is low and personnel have certain safety risk in field operation, the technical proposal is that the cooling water waste heat recovery device comprises a cooling box, a condenser pipe is fixedly arranged in a cooling box tray, a proper amount of cooling water is preset in the cooling box, a water filling nozzle is arranged on the outer wall of the cooling box in a communication way, a water level rod with a delay ascending buoy is arranged on the cooling box in a sliding way along the gravity direction through a top wall, the delay ascending buoy is fixedly connected with one end of the water level rod penetrating into the cooling box, a current-conducting plate is fixedly arranged at one end of the water level rod far away from the cooling box, a first polar plate electrically connected with a power supply and a second polar plate electrically connected with a water filling pump are fixedly arranged on the outer wall of the cooling box, the current-conducting plate is arranged against the first polar plate and the second polar plate, the effect of automatically selecting a switch for water injection and testing the pump according to the water level is achieved.

Description

Cooling water waste heat recovery device for coal-electricity enterprises

Technical Field

The utility model belongs to the technical field of thermal power's technique and specifically relates to a cooling water waste heat recovery device for coal-electric enterprises.

Background

At present, along with the development of society, the urbanization rate is continuously improved, the demand on electric energy is higher and higher, the development of thermal power technology represented by coal and electricity is also higher and faster, the thermal power generation process is as follows, the fuel is transported to a power plant, is transported and processed, and is sent to a boiler for combustion, so that the chemical energy in the fuel is converted into heat energy and is transferred to water in the boiler, the water is changed into high-temperature and high-pressure steam, the superheated steam with higher pressure and temperature is sent to a steam turbine through a pipeline, the steam turbine rotates to generate electric power, in recent years, for the corresponding national call for energy saving and environmental protection, the waste heat recovery of various devices in the coal and electricity power generation process is more and more important, the waste heat recovery refers to the limitation of factors such as history, technology, concept and the like, in the energy consumption devices of industrial enterprises which are put into operation, the technology for recovering sensible heat and latent heat which are not reasonably utilized in the original design, the waste heat comprises high-temperature waste gas waste heat, cooling medium waste heat, waste steam waste water waste heat, high-temperature product and slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like. According to investigation, the total waste heat resources of various industries account for 17% -67% of the total fuel consumption, and the recyclable waste heat resources account for 60% of the total waste heat resources.

The prior method for recovering the waste heat of high-temperature steam comprises the following steps of introducing the high-temperature steam into a condensing pipe communicated with the outside air for cooling and recovering liquid, fixedly arranging the condensing pipe in a closed cooling box, a proper amount of low-temperature cooling water is preset in the cooling box to wrap the condensing pipe, the cooling box is externally connected with a heating pipeline and a return pipeline, the heating pipeline and the return pipeline are communicated and connected with heating plates, the heating plates are arranged in the houses of the residents around, cooling water absorbing a large amount of heat enters a heating pipeline and flows into the heating plate for heating, after a large amount of heat is dissipated, when the cooling water flows into the return pipeline and is recycled into the cooling tank to cool the condensation pipe again, the water quantity of the cooling water is reduced under the conditions of evaporation and gasification of the cooling water or damage and the like of the pipeline, and the use effect is influenced, and manually turning on a water injection pump to inject cooling water into a water injection nozzle of the cooling tank, and turning off the water injection pump to stop injecting water when the cooling water reaches a proper amount after a certain time.

The above prior art solutions have the following drawbacks: the automation degree of filling cooling water is lower, needs to send the real-time supervision of special messenger, and the staff operates the equipment that contains high temperature vapor on the spot, has certain safety risk.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a cooling water waste heat recovery device for coal-electricity enterprise is through setting up water level pole and current conducting plate to according to water level switch water injection water pump.

In order to solve the technical problem, the utility model provides a following technical scheme: including the cooler bin, the inside fixed condenser pipe that is provided with of cooler bin dish, the inside appropriate amount cooling water that has preset of cooler bin, cooler bin outer wall intercommunication is provided with the water injection mouth, the cooler bin runs through the roof along direction of gravity and slides and is provided with the water level pole that has the ascending flotation pontoon of time delay, the ascending flotation pontoon of time delay and the one end fixed connection who wears to establish into the cooler bin with the water level pole, the fixed current conducting plate that is provided with of one end that the cooler bin was kept away from to the water level pole, the fixed first polar plate and the electric connection water injection pump second polar plate that are provided with the electric connection power of cooler bin outer wall, the setting of first polar plate and the second polar plate of current conducting plate conflict.

As an optimal technical scheme of the utility model, the ascending flotation pontoon of time delay includes a cavity section of thick bamboo and magnetic sheet, the magnetic sheet is fixed to be set up in cavity section of thick bamboo outer wall, the fixed locking iron plate that is provided with the magnetic sheet complex of cooler bin inner wall.

As a preferred technical scheme of the utility model, the cooler bin inner wall is provided with limit sleeve along the gravity direction is fixed, and limit sleeve laminating parcel water level pole outer wall sets up.

As an optimized technical scheme of the utility model, the fixed insulating casing that is provided with parcel current conducting plate, first polar plate and second polar plate of cooler bin outer wall.

As a preferred technical scheme of the utility model, the fixed first metal spring and the second metal spring that set up in one side that the current conducting plate is close to first polar plate and second polar plate, the first polar plate setting of first metal spring conflict, the second polar plate setting of second metal spring conflict.

As an optimal technical scheme of the utility model, the cooling box outer wall covers the parcel and is provided with the heat preservation.

As an optimized technical scheme of the utility model, the water injection nozzle inner wall can be dismantled and be provided with the filtration gauze.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the water level rod with the current-conducting plate synchronously descends along with descending of the water level, the water level ascends in a time-delay mode along with ascending of the water level, the current-conducting plate in an initial state is abutted against the first pole plate and the second pole plate and is connected with a power supply and a water injection pump, water is injected into the cooling box, after a certain time, the water level of the cooling box ascends to a certain height, the time-delay ascending buoy upwards drives the water level rod to ascend along with the current-conducting plate, the current-conducting plate is far away from the first pole plate and the second pole plate, the water injection pump is powered off and stops injecting water, when the loss of cooling water in the cooling box descends, the time-delay ascending buoy synchronously descends along with the water level and drives the current-conducting plate to be close to the first pole plate and the second pole plate, and the water injection pump is connected with the cooling box again to inject water when the current-conducting plate is abutted against the first pole plate and the second pole plate;

2. when the conductive plate is connected with a power supply and a water injection pump, the water level in the cooling tank rises continuously, the hollow cylinder cannot float up and move immediately due to mutual attraction of the magnetic sheet and the locking iron block, and when the water level reaches a certain height and the sum of the self gravity and the attraction magnetic force is smaller than the buoyancy force, the hollow cylinder can drive the water level rod to float up, so that the effect of controlling the hollow cylinder to float up in a delayed manner is achieved;

3. the limiting sleeve strictly limits the moving track of the water level rod, so that the current-conducting plate and the delayed rising buoy can run according to a preset track, and the working stability of the equipment is improved;

4. the insulating shell isolates the exposed live parts, so that electric shock accidents caused by accidental touch of workers are prevented, and the safety is improved;

5. when the magnetic sheet is close to the locking iron block, the magnetic attraction force gradually increases the self acceleration and instantly rises, the first metal spring and the second metal spring can effectively avoid the current-conducting plate from rigidly colliding with the first polar plate and the second polar plate to damage the structure, and the service life of the equipment is prolonged;

6. the heat preservation effectively avoids the cooler bin to outside air loss a large amount of heats, improves waste heat recovery rate.

7. The filtering gauze can prevent sundries from entering the cooling box to block the through hole of the pipeline when water is injected, and the stable and normal operation of the cooling box is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the cooling box of the present invention;

FIG. 3 is an enlarged view of the part A of FIG. 2;

fig. 4 is a schematic view of the cross-sectional structure of the middle insulating shell of the present invention;

fig. 5 is an enlarged schematic view of the B-part mechanism in fig. 4.

Wherein, 1, a cooling box; 11. locking the iron blocks; 12. a limiting sleeve; 13. an insulating case; 2. a condenser tube; 3. a water injection nozzle; 31. filtering the gauze; 4. a water level rod; 41. a float bowl is lifted in a delayed way; 411. a hollow cylinder; 412. a magnetic sheet; 42. a conductive plate; 421. a first electrode plate; 422. a second polar plate; 423. a first metal spring; 424. a second metal spring; 5. and (7) an insulating layer.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained with reference to the following embodiments, however, the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

referring to fig. 1, 4 and 5, the cooling water waste heat recovery device for coal-electricity enterprises disclosed by the present invention comprises a cooling box 1, a water injection nozzle 3 is arranged on the outer wall of the cooling box 1, a water level rod 4 with a delay ascending float 41 is arranged on the cooling box 1 in a sliding manner along the gravity direction through the top wall, the float 41 and the water level rod 4 are fixedly connected with one end of the cooling box 1, the end of the water level rod 4 far away from the cooling box 1 is fixedly provided with a conductive plate 42, the outer wall of the cooling box 1 is fixedly provided with a first polar plate 421 electrically connected with a power supply and a second polar plate 422 electrically connected with a water injection pump, the conductive plate 42 is abutted against the first polar plate 421 and the second polar plate 422, the water level rod 4 with the conductive plate 42 is lowered synchronously with the lowering of the water level, the water level is raised with the delay at any time, the conductive plate 42 is abutted against the first polar plate 421 and the second polar plate 422 to connect the power supply and the water injection pump in an initial state, injecting water into the cooling box 1, after the water level of the cooling box 1 rises to a certain height after a certain time, the time-delay ascending buoy 41 ascends along with the water level to drive the water level rod 4 to ascend, the conductive plate 42 is far away from the first polar plate 421 and the second polar plate 422, the water injection pump stops injecting water after power failure, when the loss of cooling water in the cooling box 1 descends, the time-delay ascending buoy 41 descends along with the water level synchronously to drive the conductive plate 42 to be close to the first polar plate 421 and the second polar plate 422, when the conductive plate 42 is abutted against the first polar plate 421 and the second polar plate 422, the water injection pump is switched on again to inject water into the cooling box 1, the outer wall of the cooling box 1 is fixedly provided with an insulating shell 13 wrapping the conductive plate 42, the first polar plate 421 and the second polar plate 422, the insulating shell 13 isolates an exposed conductive plate part, so as to prevent electric shock accidents caused by accidental touch of workers, the safety is improved, one side of the conductive plate 42 close to the first polar plate 421 and the second polar plate 422 is fixedly provided with a first metal spring 423 and a second metal spring 424, first metal spring 423 first polar plate 421 of contradicting sets up, second metal spring 424 contradicts second polar plate 422 and sets up, magnetic attraction crescent self acceleration risees in the twinkling of an eye when magnetic sheet 412 is close to with locking iron plate 11, first metal spring 423 and second metal spring 424 can effectively avoid current conducting plate 42 and first polar plate 421, second polar plate 422 takes place rigidity collision damage structure, improve equipment's life, 1 outer wall of cooler bin covers the parcel and is provided with heat preservation 5, effectively avoid 1 outside air loss a large amount of heats of cooler bin, improve the rate of waste heat recovery, 3 inner walls of water filling nozzle can be dismantled and be provided with filtration gauze 31, when preventing the water injection, have debris to enter into blocking pipeline through-hole in the cooler bin 1, guarantee 1 stable normal operating of cooler bin.

Referring to fig. 2 and 3, a condenser tube 2 is fixedly arranged inside a disc of a cooling box 1, a proper amount of cooling water is preset inside the cooling box 1, a delay ascending buoy 41 comprises a hollow cylinder 411 and a magnetic sheet 412, the magnetic sheet 412 is fixedly arranged on the outer wall of the hollow cylinder 411, a locking iron block 11 matched with the magnetic sheet 412 is fixedly arranged on the inner wall of the cooling box 1, when a power supply and a water injection pump are switched on by a conductive plate 42, the water level in the cooling box 1 is continuously increased, the hollow cylinder 411 cannot float up and move immediately due to the mutual attraction of the magnetic sheet 412 and the locking iron block 11, when the water level reaches a certain height, the sum of the self gravity and the attraction magnetic force is smaller than the buoyancy force, the hollow cylinder 411 can drive a water level rod 4 to float up to control the delay floating up of the hollow cylinder 411, a limit sleeve 12 is fixedly arranged on the inner wall of the cooling box 1 along the gravity direction, and the limit sleeve 12 is attached to wrap the outer wall of the water level rod 4, the moving track of the water level rod 4 is strictly limited, the conductive plate 42 and the delay rising buoy 41 are ensured to run according to a preset track, and the working stability of the equipment is improved.

In other embodiments, the first and

second metal springs

423, 424 may be replaced with resilient conductive pads;

through this design, the electrically conductive gasket of elasticity can effectively cushioning effect equally.

In other embodiments, the magnetic plate 412 may be installed on one side of the conductive plate 42 close to the cooling box 1, and the locking iron block 11 may be mounted on the outer wall of the cooling box 1 in an embedded manner to match the magnetic plate 412;

through the design, the magnetic attraction between the two pieces can also play a role in delaying floating.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a coal and electricity is cooling water waste heat recovery device for enterprise, includes cooler bin (1), cooler bin (1) dish is inside to be fixed and is provided with condenser pipe (2), proper amount cooling water has been preset to cooler bin (1) inside, cooler bin (1) outer wall intercommunication is provided with water injection nozzle (3), its characterized in that: cooler bin (1) runs through the roof along the direction of gravity and slides and is provided with water level pole (4) that have time delay rising flotation pontoon (41), the one end fixed connection who wears to establish cooler bin (1) with water level pole (4) in the rising flotation pontoon (41) flotation pontoon of time delay, the one end that cooler bin (1) was kept away from in water level pole (4) is fixed and is provided with current conducting plate (42), cooler bin (1) outer wall is fixed and is provided with first polar plate (421) and electric connection water injection water pump second polar plate (422) of electric connection power, current conducting plate (42) conflict first polar plate (421) and second polar plate (422) set up.

2. The cooling water waste heat recovery device for the coal and electricity enterprises according to claim 1, wherein: the time-delay ascending buoy (41) comprises a hollow cylinder (411) and a magnetic sheet (412), the magnetic sheet (412) is fixedly arranged on the outer wall of the hollow cylinder (411), and a locking iron block (11) matched with the magnetic sheet (412) is fixedly arranged on the inner wall of the cooling box (1).

3. The cooling water waste heat recovery device for the coal and electricity enterprises according to claim 1, wherein: the cooling box (1) inner wall is provided with limiting sleeve (12) along the gravity direction is fixed, limiting sleeve (12) laminating parcel water level pole (4) outer wall setting.

4. The cooling water waste heat recovery device for the coal and electricity enterprises according to claim 3, characterized in that: and an insulating shell (13) wrapping the conductive plate (42), the first polar plate (421) and the second polar plate (422) is fixedly arranged on the outer wall of the cooling box (1).

5. The cooling water waste heat recovery device for the coal and electricity enterprises according to claim 4, wherein: the one side that conducting plate (42) is close to first polar plate (421) and second polar plate (422) is fixed to be set up first metal spring (423) and second metal spring (424), first metal spring (423) conflict first polar plate (421) setting, second metal spring (424) conflict second polar plate (422) setting.

6. The cooling water waste heat recovery device for the coal and electricity enterprises according to claim 1, wherein: the outer wall of the cooling box (1) is covered and wrapped with a heat-insulating layer (5).

7. The cooling water waste heat recovery device for a coal and electricity enterprise according to claim 1, characterized in that: the inner wall of the water injection nozzle (3) is detachably provided with a filter gauze (31).