CN215372413U

CN215372413U - Energy-saving steam boiler steam supply system

Info

Publication number: CN215372413U
Application number: CN202120605653.8U
Authority: CN
Inventors: 刘国浩
Original assignee: Liaoning Panshan New City Thermal Power Co ltd
Current assignee: Liaoning Panshan New City Thermal Power Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-31
Anticipated expiration: 2031-03-25

Abstract

The utility model discloses a steam supply system of an energy-saving steam boiler, which comprises a steam drum, a water-steam separator and a steam delivery pipe, wherein the water-steam separator is arranged in the steam drum, the steam delivery pipe is fixedly arranged on the steam drum and positioned above the water-steam separator, an enhanced water-steam separation structure is arranged at the upper part of the water-steam separator, and a backflow water guide structure is arranged on the steam delivery pipe, and the utility model relates to the technical field of steam boilers, wherein the enhanced water-steam separation structure is arranged at the upper part of the water-steam separator, steam subjected to preliminary water removal by the water-steam separator enters the enhanced water-steam separation structure, the water in the steam is further separated, the water-steam separation efficiency is further improved, the occurrence of the condition that the steam carries water is effectively avoided, the operation stability of the whole steam supply system is improved, and discharged condensate water is collected and recovered, the water consumption of the system is reduced, and energy is saved.

Description

Energy-saving steam boiler steam supply system

Technical Field

The utility model relates to the technical field of steam boilers, in particular to a steam supply system of an energy-saving steam boiler.

Background

In the steam boiler, steam and water mixture collected in a drum by evaporation heating surfaces is separated by gravity or machinery in a steam space of the drum, and the steam is led out, if the steam and water separation effect is poor, the steam can carry water seriously to cause salt scale deposition on the inner wall of a steam superheater, deteriorate heat transfer and overheat and burnout, and for a saturated steam boiler, the steam carrying excessive water is difficult to meet the requirements of users, and water attack and corrosion of a steam supply pipe network can be caused, meanwhile, the temperature of the superheated steam is gradually reduced along the length direction of a pipeline along with the continuous heat dissipation of the outer side of the pipeline and the surrounding environment in the conveying process of the steam, when the temperature of the superheated steam is reduced to the saturation temperature, condensate water can be generated in the pipeline, so that the condensate water is generated in a steam supply system of the steam boiler, if the condensate water is not discharged, the normal operation of the boiler system can be directly influenced, but when the condensate water is discharged, and a large amount of water resources are wasted, so that the scheme is generated by deeply researching the problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a steam supply system of an energy-saving steam boiler, which solves the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a steam supply system of an energy-saving steam boiler comprises a steam drum, a steam separator and a steam delivery pipe, wherein the steam separator is arranged in the steam drum, the steam delivery pipe is fixedly arranged on the steam drum and positioned above the steam separator, an enhanced steam-water separation structure is arranged at the upper part of the steam separator, and a backflow water guide structure is arranged on the steam delivery pipe;

the enhanced water-vapor separation structure comprises: the water-vapor separator comprises a rectangular silo, a water-vapor separation assembly and a liquid guiding confluence assembly, wherein the rectangular silo is arranged on a water-vapor separator, the water-vapor separation assembly is arranged in the rectangular silo, the liquid guiding confluence assembly is arranged on the lower end of the water-vapor separation assembly along the inclined direction, and one end of the liquid guiding confluence assembly extends out of the rectangular silo;

the backflow water guide structure includes: the steam trap comprises a plurality of steam traps, a water collecting communicating component, a liquid collecting bin and a backwater flow guide component, wherein the steam traps are arranged on a steam conveying pipe at certain intervals, the water collecting communicating component is arranged at a water outlet at the lower end of the steam traps, the liquid collecting bin is arranged at one end of the water collecting communicating component, one end of the backwater flow guide component is communicated with the liquid collecting bin, and the other end of the backwater flow guide component is communicated with a water supply tank of a boiler main body.

Preferably, the water-vapor separation module includes: the corrugated plates are evenly arranged in the rectangular silo at certain intervals, the arc baffles are arranged on the side walls of the corrugated plates and located at the upper end of wave crests of the corrugated plates respectively, and the opening positions of the arc baffles are vertically downward.

Preferably, the liquid guiding and converging assembly comprises: the connecting column is arranged on the lower end face of the corrugated plate, the water guide groove is arranged on the lower end of the connecting column in the inclined direction, and one end of the water guide groove extends out of the rectangular silo.

Preferably, the water collecting communication assembly includes: the steam trap comprises a water collecting hopper, a water guide pipe and a heat insulation sleeve, wherein the water collecting hopper is arranged on the steam delivery pipe, the opening end of the water collecting hopper is opposite to the lower part of the drainage end of the drain valve, one end of the water guide pipe is communicated with the water collecting hopper, the other end of the water guide pipe is communicated with the liquid collection bin, and the heat insulation sleeve is fixedly sleeved on the outer side of the water guide pipe.

Preferably, the return water guide assembly includes: the boiler comprises a water pump, a liquid level sensor and a controller, wherein the water inlet end of the water pump extends into a liquid collecting bin, the water discharging end of the water pump is communicated with a water supply tank of a boiler main body, the liquid level sensor is arranged in the liquid collecting bin, and the controller is arranged on the front side wall surface of the liquid collecting bin and is connected with the liquid level sensor and the water pump.

Preferably, the upper part of the rectangular silo is provided with an air equalizing plate along the inclined direction, and the air equalizing plate is uniformly provided with a plurality of air guide through holes.

Advantageous effects

The utility model provides a steam supply system of an energy-saving steam boiler. The method has the following beneficial effects: the energy-saving steam boiler steam supply system is characterized in that an enhanced steam-water separation structure is arranged on the upper portion of a steam separator in the existing boiler body, steam subjected to preliminary water removal through the steam separator enters the enhanced steam-water separation structure, further separation treatment is carried out on water in the steam, the steam-water separation efficiency is further improved, the occurrence of the situation that the steam carries water is effectively avoided, the operation stability of the whole steam supply system is improved, meanwhile, a backflow water guide structure is arranged on one side of a steam delivery pipeline, condensed water generated in the steam pipeline is timely led out, the discharged condensed water is collected and recovered, the water consumption of the system is reduced, energy is saved, the structure is simple, the stability is good, the problem in the prior art is solved, if the steam-water separation effect of the steam is poor, the steam carries water seriously, salt scale deposits on the inner wall of a steam superheater, heat transfer is deteriorated, and the energy consumption of the boiler is increased, and even the steam superheater can be overheated and burnt, and the condensate water generated in the steam conveying process is not effectively utilized.

Drawings

Fig. 1 is a schematic structural view of a steam supply system of an energy-saving steam boiler according to the present invention.

Fig. 2 is a schematic partial enlarged structural view of an enhanced water-steam separation structure of a steam supply system of an energy-saving steam boiler according to the present invention.

FIG. 3 is a schematic sectional view of the A-A position of the steam supply system of the energy-saving steam boiler according to the present invention.

Fig. 4 is a schematic view of a position a of a steam supply system of an energy-saving steam boiler according to the present invention.

In the figure: 1-steam drum; 2-water vapor separator; 3-a steam delivery pipe; 4-a rectangular silo; 5-a drain valve; 6-collecting a liquid bin; 7-a corrugated plate; 8-arc baffle; 9-connecting column; 10-a water chute; 11-a water collecting hopper; 12-a water conduit; 13-heat preservation sleeve; 14-a water pump; 15-a liquid level sensor; 16-a controller; 17-air equalizing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.

Referring to fig. 1-4, the present invention provides a steam supply system of an energy-saving steam boiler:

example (b): as can be known from the attached drawings 1-4 of the specification, the scheme comprises a steam drum 1, a water-steam separator 2 and a steam-steam conveying pipe 3, the position relation and the connection relation are as follows, the water-steam separator 2 is arranged in the steam drum 1, the steam-steam conveying pipe 3 is fixedly arranged on the steam drum 1 and is positioned above the water-steam separator 2, the upper part of the water-steam separator 2 is provided with an enhanced water-steam separation structure, the steam-steam conveying pipe 3 is provided with a backflow water guide structure, the upper part of the water-steam separator 2 in the existing boiler main body is provided with the enhanced water-steam separation structure, steam after primary water removal through the water-steam separator 2 enters the enhanced water-steam separation structure, further separation treatment is carried out on the water in the steam, the water-steam separation efficiency is further improved, the occurrence of the situation of water carried by the steam is effectively avoided, the operation stability of the whole steam supply system is improved, and the backflow water guide structure is arranged on one side of the steam-conveying pipe 3, the condensed water generated in the steam pipeline is led out in time, and the discharged condensed water is collected and recovered, so that the water consumption of the system is reduced, the energy is saved, the structure is simple, and the stability is good;

in a specific implementation process, the enhanced water-vapor separation structure includes: rectangle silo 4, steam-water separation subassembly and drain subassembly that converges, rectangle silo 4 sets up on water vapor separator 2, and steam-water separation subassembly sets up in rectangle silo 4, and the drain subassembly that converges sets up on steam-water separation subassembly's lower extreme and outside one end stretches out rectangle silo 4 along the incline direction, and above-mentioned backward flow water guide structure includes: a plurality of steam traps 5, a water collecting communicating component, a liquid collecting bin 6 and a backwater guiding component, wherein the steam traps 5 are arranged on a steam conveying pipe 3 at certain intervals, the water collecting communicating component is arranged on a water outlet at the lower end of the steam traps 5, the liquid collecting bin 6 is arranged on one end of the water collecting communicating component, one end of the backwater guiding component is communicated with the liquid collecting bin 6, and the other end is communicated with a water supply tank of a boiler main body, when in use, steam generated by heating the boiler main body enters a steam separator 2 in a steam pocket 1 through an ascending pipe, water in the steam is primarily separated through the steam separator 2, the steam after primary separation further enters a rectangular silo 4 and is secondarily separated through the steam-water separating component, the separated water enters the liquid guiding and converging component along the steam-water separating component under the action of gravity, and after being concentrated by the liquid guiding and converging component, the steam flows into the steam pocket 1, the steam after secondary separation is discharged through the steam conveying pipe 3 and conveyed to a user, in the conveying process, the steam is cooled to generate condensed water in the steam conveying pipe 3, the condensed water is converged into the drain valve 5, and is discharged through the drain valve 5 to enter the water collecting communicating component, and is converged into the liquid collecting bin 6 through the water collecting communicating component, and the collected condensed water is returned to the water supply tank of the boiler main body by the water returning and guiding component.

As can be seen from fig. 1 to 3 of the specification, in the implementation process, the water-vapor separation assembly comprises: a plurality of wave plates 7 and a plurality of cowl 8, a plurality of wave plates 7 evenly set up in rectangle silo 4 along certain interval, and a plurality of cowl 8 set up respectively on 7 lateral walls of wave plate and lie in the crest upper end position of wave plate 7, and cowl 8's opening position is perpendicular downwards, and wherein the drain subassembly that converges includes: a connecting column 9 and a water guide groove 10, wherein the connecting column 9 is arranged on the lower end surface of the corrugated plate 7, the water guide groove 10 is arranged on the lower end of the connecting column 9 along the inclined direction, one end of the water guide groove extends out of the rectangular silo 4, when in use, the plurality of corrugated plates 7 are arranged in parallel, the arc baffle 8 is arranged at the wave crest position on the corrugated plates 7, the opening position of the arc baffle 8 is vertically downward, when steam goes upward to pass through the corrugated plate 7, a plurality of rotational flow spaces are formed between the corrugated plate 7 and the arc-shaped baffle 8, airflow changes from linear motion to circular motion, centrifugal force is generated in the rotating process of the steam, liquid drops with high density are thrown to the cylinder wall, once the liquid drops are contacted with the cylinder wall, the liquid drops lose inertia force and fall along the wall surface by virtue of downward gravity, and the liquid drops move downward and are collected in a water guide groove 10 at the lower end of the connecting column 9 and flow into the steam pocket 1 through one end of the water guide groove 10.

As can be seen from fig. 1 to 4 of the specification, in the implementation process, the water collecting and communicating assembly comprises: water collecting bucket 11, aqueduct 12 and heat preservation sleeve 13, its position relation and connection relation are as follows, water collecting bucket 11 sets up on steam delivery pipe 3 and the open end just faces the drainage end below of trap 5, and aqueduct 12 one end is linked together with water collecting bucket 11, and the other end is linked together with album liquid storehouse 6, and heat preservation sleeve 13 is fixed suit in the aqueduct 12 outside, and above-mentioned return water conservancy diversion subassembly includes: the boiler comprises a water pump 14, a liquid level sensor 15 and a controller 16, wherein the water inlet end of the water pump 14 extends into a liquid collecting bin 6, the water discharging end of the water pump 14 is communicated with a water supply tank of a boiler main body, the liquid level sensor 15 is arranged in the liquid collecting bin 6, the controller 16 is arranged on the front side wall surface of the liquid collecting bin 6 and is connected with the liquid level sensor 15 and the water pump 14, when the boiler is used, steam in a steam delivery pipe 3 is cooled to form condensate water, the condensate water is collected in a drain valve 5 and is discharged through a water outlet of the drain valve 5, the discharged condensate water enters a water collecting hopper 11 and is guided into the liquid collecting bin 6 through a water guide pipe 12, a heat insulation sleeve 13 arranged on the outer side wall surface of the water guide pipe 12 can effectively avoid heat loss in the process of collecting the condensate water, the liquid level sensor 15 in the liquid collecting bin 6 monitors the liquid level height of the condensate water in the liquid collecting bin 6 and converts monitoring data into an electric signal to be sent to the controller 16, the controller 16 controls the water pump 14 to be started to supply the condensed water in the sump 6 back to the water supply tank of the boiler main body when the water level reaches a set value according to the received signal.

As can be seen from fig. 1 to 3 of the specification, in the specific implementation process, the upper portion of the rectangular silo 4 is provided with the air equalizing plate 17 along the inclined direction, the air equalizing plate 17 is uniformly provided with a plurality of air guide through holes, when in use, the air equalizing plate 17 is arranged on the upper portion of the rectangular silo 4 along the inclined direction, and after the steam is subjected to secondary separation, the steam passes through the air guide through holes on the air equalizing plate 17, so that the uniformity of the steam entering the upper space of the steam pocket 1 can be effectively improved.

To sum up, the steam supply system of the energy-saving steam boiler is characterized in that an enhanced water-vapor separation structure is arranged at the upper part of a water-vapor separator 2 in the existing boiler body, steam subjected to preliminary water removal through the water-vapor separator 2 enters the enhanced water-vapor separation structure, the water in the steam is further separated, the water-vapor separation efficiency is further improved, the occurrence of the condition that the steam carries water is effectively avoided, the operation stability of the whole steam supply system is improved, meanwhile, a backflow water guide structure is arranged at one side of a steam delivery pipe 3, condensed water generated in a steam pipeline is timely led out, the discharged condensed water is collected and recovered, the water consumption of the system is reduced, the energy is saved, the structure is simple, the stability is good, and the problem that salt scale is deposited on the inner wall of a steam superheater due to the fact that the steam carries water seriously if the water-vapor separation effect of the steam is poor in the prior art is solved, the deterioration of heat transfer increases the energy consumption of the boiler, and even can cause the temperature of the steam superheater to be overheated and burnt, and the condensate water generated in the steam conveying process is not effectively utilized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An energy-saving steam boiler steam supply system comprises a steam drum (1), a water-steam separator (2) and a steam delivery pipe (3), and is characterized in that the water-steam separator (2) is arranged in the steam drum (1), the steam delivery pipe (3) is fixedly arranged on the steam drum (1) and positioned above the water-steam separator (2), an enhanced water-steam separation structure is arranged at the upper part of the water-steam separator (2), and a backflow water guide structure is arranged on the steam delivery pipe (3);

the enhanced water-vapor separation structure comprises: the water-vapor separator comprises a rectangular silo (4), a water-vapor separation assembly and a liquid guiding and converging assembly, wherein the rectangular silo (4) is arranged on a water-vapor separator (2), the water-vapor separation assembly is arranged in the rectangular silo (4), the liquid guiding and converging assembly is arranged on the lower end of the water-vapor separation assembly in the inclined direction, and one end of the liquid guiding and converging assembly extends out of the rectangular silo (4);

the backflow water guide structure includes: the boiler comprises a plurality of drain valves (5), a water collection communicating component, a liquid collection bin (6) and a backwater flow guide component, wherein the drain valves (5) are arranged on a steam delivery pipe (3) at certain intervals, the water collection communicating component is arranged at a position of a water outlet at the lower end of the drain valves (5), the liquid collection bin (6) is arranged at one end of the water collection communicating component, one end of the backwater flow guide component is communicated with the liquid collection bin (6), and the other end of the backwater flow guide component is communicated with a water supply tank of a boiler main body.

2. An energy efficient steam boiler steam supply system according to claim 1, wherein the steam separation assembly comprises: a plurality of wave plate (7) and a plurality of cowl (8), it is a plurality of wave plate (7) evenly set up in rectangle silo (4) along certain interval, it is a plurality of cowl (8) set up respectively on wave plate (7) lateral wall and lie in the crest upper end position of wave plate (7), the opening position of cowl (8) is perpendicular downwards.

3. An energy efficient steam boiler steam supply system according to claim 2, wherein the flow directing manifold assembly comprises: the corrugated plate comprises a connecting column (9) and a water guide groove (10), wherein the connecting column (9) is arranged on the lower end face of the corrugated plate (7), the water guide groove (10) is arranged on the lower end of the connecting column (9) in the inclined direction, and one end of the water guide groove extends out of the rectangular silo (4).

4. An energy efficient steam boiler steam supply system according to any one of claims 1 to 3, wherein the catchment communication assembly comprises: the steam trap is characterized by comprising a water collecting hopper (11), a water guide pipe (12) and a heat insulation sleeve (13), wherein the water collecting hopper (11) is arranged on the steam delivery pipe (3), the opening end of the water collecting hopper is opposite to the lower part of the drainage end of the drain valve (5), one end of the water guide pipe (12) is communicated with the water collecting hopper (11), the other end of the water guide pipe is communicated with the liquid collection bin (6), and the heat insulation sleeve (13) is fixedly sleeved on the outer side of the water guide pipe (12).

5. An energy saving steam boiler steam supply system according to claim 4, wherein the return water diversion assembly comprises: water pump (14), level sensor (15) and controller (16), the end of intaking of water pump (14) stretches into in album liquid storehouse (6), the delivery side of water pump (14) is linked together with the feed water tank of boiler main part, level sensor (15) set up in album liquid storehouse (6), controller (16) set up on the preceding lateral wall face in album liquid storehouse (6) and be connected with level sensor (15) and water pump (14).

6. An energy-saving steam boiler steam supply system according to claim 1, characterized in that the upper part of the rectangular silo (4) is provided with an air-equalizing plate (17) along the inclined direction, and a plurality of air guide through holes are uniformly arranged on the air-equalizing plate (17).