CN114877526A

CN114877526A - Vacuum boiler

Info

Publication number: CN114877526A
Application number: CN202210488504.7A
Authority: CN
Inventors: 何忠; 凌云嘉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-09

Abstract

The invention relates to the technical field of boilers, in particular to a vacuum boiler which comprises a boiler body, wherein a heating pipe penetrating through the boiler body is horizontally and fixedly arranged on the side wall of the boiler body, a heat exchanger is fixedly arranged on the inner top wall of the boiler body, a water inlet pipe and a water outlet pipe communicated with the heat exchanger are fixedly arranged on the side walls on the two sides of the boiler body, mounting blocks are fixedly arranged on the inner side walls on the left side and the right side of the boiler body, a guide rod is fixedly arranged on the two mounting blocks together, a scraper made of magnetic materials is movably sleeved on the guide rod, and a driving mechanism for driving the scraper to move is arranged in the water inlet pipe. The worm drives the reciprocating screw rod to rotate, so that the magnetic sliding block drives the scraper to scrape back and forth on the surface of the heat exchanger, condensed water attached to the surface of the heat exchanger when the condensed water is liquefied due to cold can be timely removed, and the phenomenon that the heating efficiency of the heat exchanger is reduced due to heat exchange between the cold water attached to the surface of the heat exchanger and steam can be prevented.

Description

Vacuum boiler

Technical Field

The invention relates to the technical field of boilers, in particular to a vacuum boiler.

Background

The vacuum boiler is a vacuum environment with negative pressure formed inside a sealed furnace body, heat medium water is filled in the machine body, the heat medium water is heated by combustion or other modes, then the heat medium water is evaporated and condensed onto a heat exchanger, and then the heat exchanger heats water to be heated.

By way of search, chinese patent No. CN207379042U discloses a vacuum boiler, comprising: furnace body, burner, furnace's top in the furnace body is provided with heat exchanger tube bundle, is provided with the guide plate in heat exchanger tube bundle's lower part, the guide plate set up a set of or multiunit in the boiler, arrange from top to bottom between each group's the guide plate under the condition of guide plate multiunit, every group guide plate comprises two guide plates of controlling the setting, has the clearance between two guide plates, one side of two guide plates is located the both sides in the boiler respectively, the another side is located the boiler, the limit portion that the guide plate is located the boiler is higher than the limit portion that is located both sides in the boiler, make two guide plates be "eight" font and distribute.

Although the vacuum boiler can treat the condensed water on the surface of the heat exchanger, the following disadvantages still exist:

1. the condensate water on the surface of the heat exchanger can drop on the guide plate after gathering certain mass, the time is long, and in the process, the condensate water still can be in contact with steam and generates heat exchange to cause the reduction of internal energy carried by the steam, so that the heat absorbed by the heat exchanger is reduced.

2. Because steam is evenly distributed in the box, consequently, even on the condensate water drips the roof of guide plate, steam also can contact with it, can lead to the comdenstion water to absorb the internal energy of steam through the mode of heat transfer when steam and comdenstion water contact to lead to the temperature of steam to descend, when steam and heat exchanger contact, the heat transfer effect also can reduce thereupon.

To this end, a vacuum boiler is proposed.

Disclosure of Invention

The invention aims to provide a vacuum boiler to solve the problems that the time of free dripping is long due to the gravity of condensed water, and the heat transferred to a heat exchanger is reduced due to the fact that the condensed water absorbs the internal energy of steam in the process.

In order to achieve the purpose, the invention provides the following technical scheme:

a vacuum boiler comprises a boiler body, wherein a heating pipe penetrating through the boiler body is horizontally and fixedly installed on the side wall of the boiler body, a heat exchanger is fixedly installed on the inner top wall of the boiler body, a water inlet pipe and a water outlet pipe communicated with the heat exchanger are fixedly installed on the side walls on the two sides of the boiler body, installation blocks are fixedly installed on the inner side walls on the left side and the right side of the boiler body, guide rods are fixedly installed on the two installation blocks together, a scraper made of a magnetic material is movably sleeved on each guide rod, and a driving mechanism for driving the scraper to move is arranged in the water inlet pipe;

the driving mechanism comprises two supports fixedly installed in the water inlet pipe, a worm matched with the water inlet pipe is installed on the two supports in a common horizontal rotating mode, a reciprocating lead screw penetrating through the heat exchanger and made of stainless steel is fixedly installed at one end of the worm, a slider made of magnetic materials is installed on the reciprocating lead screw in a threaded mode, the slider and the scraper are attracted mutually, mounting plates are horizontally and fixedly installed on two sides of the scraper, sponge is fixedly installed on the two mounting plates, an extrusion block matched with the sponge is fixedly installed on the side wall of each mounting block, a flow guide groove is formed in the top wall of each mounting plate, a flow guide mechanism matched with the flow guide groove is arranged on each mounting block, a one-way valve is fixedly installed in the water outlet pipe, a water pump is arranged at a position between the one-way valve and the heat exchanger on the water outlet pipe, and the water outlet end of the water pump extends into the water inlet pipe, and a trigger mechanism for triggering the water pump to work is arranged at the joint of the water outlet pipe and the heat exchanger.

In the working process of the boiler, heating medium water in the boiler body is boiled through the heating pipe so as to be evaporated, heat exchange is carried out when the evaporated water vapor is contacted with the heat exchanger, the temperature of the steam is transferred to the heat exchanger, and similarly, the heat exchanger transfers the temperature to cold water flowing through the heat exchanger through the heat transfer effect so as to increase the temperature of the cold water.

When cold water flows through the water inlet pipe, the worm drives the reciprocating screw rod to rotate, the sliding block moves back and forth on the reciprocating screw rod at the moment, and the sliding block and the scraping plate are made of magnetic materials and attract each other, so that the scraping plate slides on the guide rod in the process that the sliding block moves, and the cold water attached to the surface of the heat exchanger can be scraped off in time in the process that the scraping plate slides back and forth along the guide rod, so that the effect of enabling steam carrying heat to be directly contacted with the heat exchanger and generating heat exchange is achieved.

The water that will be scraped is collected at the in-process that the scraper blade removed utilizes the sponge, after the sponge contacted with the extrusion piece, the scraper blade continued to move to the one end of guide bar, the sponge was extruded by the extrusion piece this moment, under the effect of extrusion piece, the lower water of temperature on the sponge will be extruded, the water of being extruded moves along the guiding gutter on the mounting panel, and under the effect of water conservancy diversion mechanism, cold water flows into the heating medium aquatic and heats once more, has played the effect that prevents cold water and steam contact and absorb the heat of steam in the in-process that directly drops to the heating medium aquatic from the scraper blade.

Simultaneously, when the speed of the cold water of heat exchanger of flowing through leads to the temperature not to reach the assigned temperature at the excessive speed, under trigger mechanism's effect, the water pump is started and is taken out the inlet tube with the warm water in the outlet pipe of flowing through and heats once more to set up the check valve in the outlet pipe and played and prevent that the water pump from taking out the effect in the inlet tube with the hot water of having accomplished the heating.

Preferably, the scraper blade includes the riser, the activity inlays on the roof of riser and is equipped with a plurality of steel balls, fixed mounting has two guide plates, two on the lateral wall of riser the guide plate is down "eight" word and distributes, two the equal fixed mounting in top of guide plate has the brush that has the shovel water function.

Through the activity inlay establish the steel ball on the roof of riser can become the sliding friction between riser and the heat exchanger into the rolling friction between steel ball and the heat exchanger, reduced frictional force, played the effect that makes the riser remove more easily, because the frictional force between brush and the heat exchanger is less, consequently played the effect of ensureing that the riser can normally remove.

Preferably, water conservancy diversion mechanism is including seting up the cavity on the installation piece, the cavity internalization set with guiding gutter complex honeycomb duct, be equipped with the spring between honeycomb duct and the cavity, vertical fixed the inserting is equipped with the top and extends to the thermal-insulated pipe in the cavity on the diapire of installation piece, the bottom of thermal-insulated pipe extends to in the heat medium water.

When the sponge just contacts with the extrusion block, the guide pipe is attached to the guide groove arranged on the mounting plate under the action of the spring, the scraper continuously drives the sponge to move towards the extrusion block, at the moment, water on the sponge is extruded out, the extruded water flows downwards into the guide groove on the mounting plate under the action of gravity and flows along the guide groove, and the guide pipe is always in contact with the guide groove under the action of the spring, so that the water in the guide groove flows into the heat insulation pipe along the guide pipe and then flows into the heat medium water from the heat insulation pipe to be reheated, the heat insulation pipe does not contact with steam in the flowing process, meanwhile, the heat insulation pipe does not generate heat exchange between the steam, the function of preventing cold water from generating heat exchange with the steam in the furnace body is achieved, when the scraper moves towards the direction far away from the extrusion block, the guide pipe returns to the original position under the action of the spring, ready for the next job.

Preferably, the trigger mechanism includes the cylinder of fixed mounting on the outlet pipe, two gas pockets have been seted up on the cylinder, divide into first cavity and second cavity in the cylinder, the activity respectively has set first piston plate and second piston plate in first cavity and the second cavity, fixed mounting has the switch of establishing ties with the water pump on the roof of second cavity, fixed mounting has the memory alloy with outlet pipe inner wall fixed connection on the diapire of first piston plate.

When the water that passes through the outlet pipe is the assigned temperature, memory alloy is heated and is stretched and drive first piston plate and shift up along first cavity, move up the in-process, the second piston plate moves down the pressure in the balanced cylinder along the second cavity, thereby break away from the contact with the switch, when the water in the outlet pipe does not reach the assigned temperature, memory alloy contracts, pull first piston plate downwards at the in-process of shrink, for the balanced pressure second piston plate moves up along the second cavity, the in-process switch that shifts up at the second piston plate is extruded, the effect of automatic start water pump has been played.

Preferably, the furnace body is provided with a storage battery connected with the water pump in series, and the side wall of the furnace body is fixedly provided with a temperature difference semiconductor connected with the storage battery in series.

Because the temperature difference between the inside and the outside of the boiler body is large, the electric energy generated by the temperature difference semiconductor in the working process of the boiler is transmitted to the storage battery through the conducting wire to charge the storage battery, the consumption of the electric energy of the external power supply can be reduced, and the effect of saving the electric energy is achieved.

Preferably, the furnace body is fixedly provided with a heat dissipation frame, and the storage battery is fixedly arranged on the heat dissipation frame.

In the working process of the boiler, the heat inside the boiler can be transferred to the boiler body in a heat transfer mode, so that the storage battery is arranged on the heat dissipation frame to prevent the storage battery from directly contacting with the boiler body, the temperature on the surface of the boiler body is prevented from being transferred to the storage battery, and the effect of preventing the storage battery from being damaged is achieved.

Compared with the prior art, the invention has the beneficial effects that:

1. thereby drive reciprocal lead screw through the worm and rotate and make the slider of magnetism material drive the scraper blade and make a round trip to scrape on the surface of heat exchanger, can in time will meet the cold liquefaction and attach to the comdenstion water on heat exchanger surface and clear away in time to can prevent to take place the heat exchange because of the cold water that attaches to the heat exchanger surface and lead to the phenomenon that heat exchanger intensification efficiency reduces with steam.

2. The heat insulation pipe does not exchange heat with the steam, so that the cold water extruded from the sponge is directly transferred to the heating medium water in a heating state by the heat insulation pipe for heating, and the effect of preventing the cold water from contacting with the steam and generating heat exchange when flowing along the inner wall of the furnace body so as to prevent the temperature of the steam from reducing is achieved.

3. The water pump is arranged on the water outlet pipe, so that the warm water which does not reach the specified temperature can be pumped into the water inlet pipe again, the water is heated again, and the water flowing out of the water outlet pipe can reach the specified temperature.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a view A-A of the present invention;

FIG. 4 is an enlarged view of the invention at B;

FIG. 5 is an enlarged view of the invention at C;

FIG. 6 is a combination view of a draft tube and mounting plate of the present invention;

FIG. 7 is a combination view of the water inlet pipe, the heat exchanger and the water outlet pipe of the present invention.

In the figure: 1. a furnace body; 2. heating a tube; 3. a heat exchanger; 4. a water inlet pipe; 5. a water outlet pipe; 6. mounting blocks; 7. a guide rod; 8. a squeegee; 801. a vertical plate; 802. a steel ball; 803. a baffle; 804. a brush; 9. a support; 10. a worm; 11. a reciprocating screw rod; 12. a slider; 13. mounting a plate; 14. a sponge; 15. extruding the block; 16. a one-way valve; 17. a water pump; 18. a flow guide pipe; 19. a spring; 20. a heat insulation pipe; 21. a cylinder; 22. a first piston plate; 23. a second piston plate; 24. a switch; 25. a memory alloy; 26. a storage battery; 27. a thermoelectric semiconductor; 28. a heat dissipation frame.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a vacuum boiler, which has the following technical scheme:

a vacuum boiler comprises a boiler body 1, wherein a heating pipe 2 penetrating through the boiler body 1 is horizontally and fixedly installed on the side wall of the boiler body 1, a heat exchanger 3 is fixedly installed on the inner top wall of the boiler body 1, a water inlet pipe 4 and a water outlet pipe 5 communicated with the heat exchanger 3 are fixedly installed on the side walls on the two sides of the boiler body 1, installation blocks 6 are fixedly installed on the inner side walls on the left side and the right side of the boiler body 1, a guide rod 7 is fixedly installed on the two installation blocks 6 together, a scraper 8 made of magnetic materials is movably sleeved on the guide rod 7, and a driving mechanism for driving the scraper 8 to move is arranged in the water inlet pipe 4;

the driving mechanism comprises two supports 9 fixedly installed in the water inlet pipe 4, a worm 10 matched with the water inlet pipe 4 is installed on the two supports 9 in a common horizontal rotating mode, a reciprocating screw rod 11 which penetrates through the heat exchanger 3 and is made of stainless steel is fixedly installed at one end of the worm 10, a sliding block 12 made of magnetic materials is installed on the reciprocating screw rod 11 in a threaded mode, the sliding block 12 and a scraper 8 are mutually attracted, installation plates 13 are horizontally and fixedly installed on two sides of the scraper 8, sponges 14 are fixedly installed on the two installation plates 13, an extrusion block 15 matched with the sponges 14 is fixedly installed on the side wall of the installation block 6, a diversion trench is formed in the top wall of the installation plate 13, a diversion mechanism matched with the diversion trench is arranged on the installation block 6, a one-way valve 16 is fixedly installed in the water outlet pipe 5, a water pump 17 is arranged at a position, between the one-way valve 16 and the heat exchanger 3, and the water outlet end of the water pump 17 extends into the water inlet pipe 4, the joint of the water outlet pipe 5 and the heat exchanger 3 is provided with a trigger mechanism for triggering the water pump 17 to work.

In the working process of the boiler, heating medium water in the boiler body 1 is boiled and evaporated through the heating pipe 2, heat exchange is carried out when evaporated water vapor is contacted with the heat exchanger 3, the temperature of the steam is transferred to the heat exchanger 3, similarly, the heat exchanger 3 transfers the temperature to cold water flowing through the heat exchanger 3 through the heat transfer effect so as to increase the temperature of the cold water, in the process, the cold water is subjected to heat exchange with the heat exchanger 3, so that the temperature of the heat exchanger 3 is reduced, the steam is liquefied when being contacted with the heat exchanger 3, and small liquefied water beads are attached to the surface of the heat exchanger 3.

When cold water flows through the water inlet pipe 4, the worm 10 drives the reciprocating screw rod 11 to rotate, the sliding block 12 moves back and forth on the reciprocating screw rod 11 at the moment, and the sliding block 12 and the scraping plate 8 are made of magnetic materials and attract each other, so that the scraping plate 8 slides on the guide rod 7 in the moving process of the sliding block 12, the cold water attached to the surface of the heat exchanger 3 can be scraped off in time in the back and forth sliding process of the scraping plate 8 along the guide rod 7, and the effect of enabling steam carrying heat to be directly contacted with the heat exchanger 3 and generating heat exchange is achieved.

The scraped water is collected by the sponge 14 in the moving process of the scraper 8, after the sponge 14 is in contact with the extrusion block 15, the scraper 8 continues to move towards one end of the guide rod 7, at the moment, the sponge 14 is extruded by the extrusion block 15, water with lower temperature on the sponge 14 is extruded under the action of the extrusion block 15, the extruded water moves along the guide groove on the mounting plate 13, and under the action of the guide mechanism, cold water flows into the heat medium water to be heated again, so that the effect of preventing the cold water from being in contact with steam and absorbing heat of the steam in the process of directly dropping the cold water from the scraper 8 into the heat medium water is achieved.

Meanwhile, when the speed of the cold water flowing through the heat exchanger 3 is too fast, the temperature does not reach the specified temperature, under the action of the trigger mechanism, the water pump 17 is started and the warm water flowing through the water outlet pipe 5 is pumped into the water inlet pipe 4 to be heated again, and the one-way valve 16 arranged in the water outlet pipe 5 plays a role in preventing the water pump 17 from pumping the heated hot water into the water inlet pipe 4.

Referring to fig. 4, as an embodiment of the present invention, the scraper 8 includes a vertical plate 801, a plurality of steel balls 802 are movably embedded on a top wall of the vertical plate 801, two deflectors 803 are fixedly installed on a side wall of the vertical plate 801, the two deflectors 803 are distributed in an inverted "eight" shape, and a brush 804 having a water shoveling function is fixedly installed on top ends of the two deflectors 803.

Sliding friction between the vertical plate 801 and the heat exchanger 3 can be changed into rolling friction between the steel balls and the heat exchanger 3 by movably embedding the steel balls 802 on the top wall of the vertical plate 801, friction force is reduced, the effect of enabling the vertical plate 801 to move more easily is achieved, and the effect of ensuring normal movement of the vertical plate 801 is achieved due to the fact that the friction force between the brush 804 and the heat exchanger 3 is small.

Referring to fig. 4 and 6, as an embodiment of the present invention, the flow guide mechanism includes a cavity opened on the mounting block 6, a flow guide pipe 18 matched with the flow guide groove is movably disposed in the cavity, a spring 19 is disposed between the flow guide pipe 18 and the cavity, a heat insulation pipe 20 having a top end extending into the cavity is vertically and fixedly inserted on the bottom wall of the mounting block 6, and a bottom end of the heat insulation pipe 20 extends into the heating medium water.

When the sponge 14 just contacts with the extrusion block 15, under the action of the spring 19, the guide pipe 18 is attached to the guide groove arranged on the mounting plate 13, the scraper 8 continues to drive the sponge 14 to move towards the extrusion block 15, at the moment, water on the sponge 14 is extruded out, and under the action of gravity, the extruded water flows downwards into the guide groove on the mounting plate 13 and flows along the guide groove, because the guide pipe 18 is always in contact with the guide groove under the action of the spring 19, the water in the guide groove flows into the heat insulation pipe 20 along the guide pipe 18, and then flows into the heat medium water from the heat insulation pipe 20 to be reheated, and does not contact with steam in the process of flowing in the heat insulation pipe 20, and meanwhile, the heat insulation pipe 20 does not generate heat exchange with the steam, so that the function of preventing cold water from generating heat exchange with the steam in the furnace body 1 is achieved, when the scraper 8 moves towards the direction far away from the extrusion block 15, under the action of the spring 19, the duct 18 returns to the original position, ready for the next work.

Referring to fig. 5, as an embodiment of the present invention, the triggering mechanism includes an air cylinder 21 fixedly mounted on the water outlet pipe 5, two air holes are formed on the air cylinder 21, the interior of the air cylinder 21 is divided into a first cavity and a second cavity, a first piston plate 22 and a second piston plate 23 are movably disposed in the first cavity and the second cavity respectively, a switch 24 connected in series with the water pump 17 is fixedly mounted on the top wall of the second cavity, and a memory alloy 25 fixedly connected with the inner wall of the water outlet pipe 5 is fixedly mounted on the bottom wall of the first piston plate 22.

When the water passing through the water outlet pipe 5 is at a specified temperature, the memory alloy 25 is heated to extend and drive the first piston plate 22 to move upwards along the first cavity, in the upwards moving process, the second piston plate 23 moves downwards along the second cavity to balance the pressure in the air cylinder 21, so that the memory alloy 25 is separated from the contact with the switch 24, when the water in the water outlet pipe 5 does not reach the specified temperature, the memory alloy 25 contracts, the first piston plate 22 is pulled downwards in the contracting process, the second piston plate 23 moves upwards along the second cavity for balancing the pressure, and the switch 24 is extruded in the upwards moving process of the second piston plate 23, so that the function of automatically starting the water pump 17 is achieved.

Referring to fig. 1 and 3, as an embodiment of the present invention, a storage battery 26 connected in series with the water pump 17 is provided on the furnace body 1, and a thermoelectric semiconductor 27 connected in series with the storage battery 26 is fixedly mounted on a side wall of the furnace body 1.

Because the temperature difference between the inside and the outside of the furnace body 1 is large, the electric energy generated by the temperature difference semiconductor 27 is transmitted to the storage battery 26 through the conducting wire to charge the storage battery 26 in the working process of the boiler, so that the consumption of the electric energy of an external power supply can be reduced, and the effect of saving the electric energy is achieved.

Referring to fig. 1, a heat dissipating frame 28 is fixedly attached to a furnace body 1, and a battery 26 is fixedly attached to the heat dissipating frame 28.

In the working process of the boiler, the heat inside the boiler can be transferred to the boiler body 1 in a heat transfer mode, so that the storage battery 26 is fixedly arranged on the heat dissipation frame 28, the storage battery 26 can be prevented from directly contacting the boiler body 1, the temperature on the surface of the boiler body 1 is prevented from being transferred to the storage battery 26, and the effect of preventing and reducing the damage probability of the storage battery 26 is achieved.

The working principle is as follows: in the working process of the boiler, heating medium water in the boiler body 1 is boiled and evaporated through the heating pipe 2, heat exchange is carried out when evaporated water vapor is contacted with the heat exchanger 3, the temperature of the steam is transferred to the heat exchanger 3, similarly, the heat exchanger 3 transfers the temperature to cold water flowing through the heat exchanger 3 through the heat transfer effect so as to increase the temperature of the cold water, in the process, the cold water is subjected to heat exchange with the heat exchanger 3, so that the temperature of the heat exchanger 3 is reduced, the steam is liquefied when being contacted with the heat exchanger 3, and small liquefied water beads are attached to the surface of the heat exchanger 3.

When cold water flows through the water inlet pipe 4, the worm 10 drives the reciprocating screw rod 11 to rotate, at the moment, the slide block 12 moves back and forth on the reciprocating screw rod 11, because the slide block 12 and the scraper 8 are made of magnetic materials and mutually attract, the sliding friction between the vertical plate 801 and the heat exchanger 3 can be changed into the rolling friction between the steel balls and the heat exchanger 3 by movably embedding the steel balls 802 on the top wall of the vertical plate 801, the friction force is reduced, the effect of enabling the vertical plate 801 to move more easily is achieved, because the friction force between the brush 804 and the heat exchanger 3 is small, the vertical plate 801 can move normally, so that the scraper 8 is driven to slide on the guide rod 7 in the moving process of the sliding block 12, the cold water attached to the surface of the heat exchanger 3 can be scraped off in time during the sliding of the scraper 8 back and forth along the guide bar 7, and the function of bringing the heat-carrying steam into direct contact with the heat exchanger 3 and performing heat exchange is achieved.

The scraped water is collected by the sponge 14 in the moving process of the scraping plate 8, after the sponge 14 contacts with the extrusion block 15, the scraping plate 8 continues to move towards one end of the guide rod 7, at the moment, the sponge 14 is extruded by the extrusion block 15, water with lower temperature on the sponge 14 is extruded under the action of the extrusion block 15, the extruded water moves along the guide grooves on the mounting plate 13, when the sponge 14 just contacts with the extrusion block 15, the guide pipe 18 is attached to the guide grooves formed on the mounting plate 13 under the action of the spring 19, the scraping plate 8 continues to drive the sponge 14 to move towards the extrusion block 15, at the moment, the water on the sponge 14 is extruded, and under the action of gravity, the extruded water flows downwards into the guide grooves on the mounting plate 13 and flows along the guide grooves, because the guide pipe 18 always contacts with the guide grooves under the action of the spring 19, the water in the guide grooves flows into the heat insulation pipe 20 along the guide pipe 18, then, the heat medium water flows into the heat insulation pipe 20 to be reheated, the heat medium water does not contact with the steam in the process of flowing in the heat insulation pipe 20, and the heat insulation pipe 20 does not generate heat exchange with the steam, so that the function of preventing the cold water from generating heat exchange with the steam in the furnace body 1 is achieved, when the scraper 8 moves towards the direction far away from the extrusion block 15, the guide pipe 18 is restored to the original position under the action of the spring 19 to prepare for the next work.

Meanwhile, when the water passing through the water outlet pipe 5 is at a predetermined temperature, the memory alloy 25 is heated and extended to drive the first piston plate 22 to move upward along the first cavity, during the upward movement, the second piston plate 23 moves down along the second chamber to equalize the pressure in the cylinder 21, thereby being out of contact with the switch 24, when the water in the water outlet pipe 5 does not reach the designated temperature, the memory alloy 25 contracts, pulling the first piston plate 22 downwards during contraction, the second piston plate 23 moves up the second chamber for pressure equalization, the switch 24 is pressed during the process that the second piston plate 23 moves upwards, which plays the role of automatically starting the water pump 17, after the water pump 17 is started, the warm water flowing through the water outlet pipe 5 is pumped into the water inlet pipe 4 to be heated again, and the provision of the one-way valve 16 in the outlet pipe 5 serves to prevent the water pump 17 from pumping heated water that has completed heating into the inlet pipe 4.

Because the inside and outside difference in temperature of furnace body 1 is great, consequently the electric energy that sends at the in-process difference in temperature semiconductor 27 of boiler work passes through the wire and transmits to the battery 26 in for battery 26 charges, can reduce the consumption of external power supply electric energy, the effect of practicing thrift the electric energy has been played, in the boiler working process, its inside heat can be through the mode transmission of heat transfer to furnace body 1 on, consequently with battery 26 fixed mounting can prevent that battery 26 directly contacts with furnace body 1 on heat dissipation frame 28, thereby prevent that the temperature on furnace body 1 surface from transmitting to battery 26, the effect of preventing to reduce battery 26 probability of damaging has been played.

The electric elements in the document are electrically connected with an external main controller and 220V mains supply through a transformer, the main controller can be a conventional known device controlled by a computer and the like, the product model provided by the invention is only used according to the structural characteristics of the product, the product can be adjusted and modified after being purchased, so that the product is more matched with and accords with the technical scheme of the invention, the product model is a technical scheme of the optimal application of the technical scheme, the product model can be replaced and modified according to the required technical parameters, and the product model is familiar to the technical personnel in the field, so that the technical scheme provided by the invention can clearly obtain the corresponding use effect.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vacuum boiler, includes furnace body (1), horizontal fixed mounting has heating pipe (2) that run through furnace body (1) on the lateral wall of furnace body (1), fixed mounting has heat exchanger (3) on the interior roof of furnace body (1), equal fixed mounting has inlet tube (4) and outlet pipe (5) with heat exchanger (3) UNICOM on the lateral wall of furnace body (1) both sides, its characterized in that: the furnace body is characterized in that mounting blocks (6) are fixedly mounted on the inner side walls of the left side and the right side of the furnace body (1), a guide rod (7) is fixedly mounted on the two mounting blocks (6) together, a magnetic scraper (8) is movably sleeved on the guide rod (7), and a driving mechanism for driving the scraper (8) to move is arranged in the water inlet pipe (4);

the drive mechanism comprises two supports (9) fixedly installed in the water inlet pipe (4), two supports (9) are horizontally and rotatably installed on the water inlet pipe (4) together to form a worm (10) matched with the water inlet pipe (4), one end of the worm (10) is fixedly installed with a reciprocating screw rod (11) which runs through the heat exchanger (3) and is made of stainless steel, a slider (12) made of magnetic material is installed on the reciprocating screw rod (11) in a threaded manner, the slider (12) and a scraper (8) are mutually attracted, two sides of the scraper (8) are horizontally and fixedly installed with mounting plates (13), two mounting plates (13) are uniformly and fixedly installed with sponge (14), an extrusion block (15) matched with the sponge (14) is fixedly installed on the side wall of the mounting block (6), a flow guide groove is formed in the top wall of the mounting plate (13), and a flow guide mechanism matched with the flow guide groove is arranged on the mounting block (6), the water heater is characterized in that a check valve (16) is fixedly mounted in the water outlet pipe (5), a water pump (17) is arranged at a position, between the check valve (16) and the heat exchanger (3), on the water outlet pipe (5), the water outlet end of the water pump (17) extends into the water inlet pipe (4), and a trigger mechanism for triggering the water pump (17) to work is arranged at the joint of the water outlet pipe (5) and the heat exchanger (3).

2. A vacuum boiler according to claim 1, characterized in that: scraper blade (8) are including riser (801), the activity inlays on the roof of riser (801) and is equipped with a plurality of steel balls (802), fixed mounting has two guide plates (803), two on the lateral wall of riser (801) guide plate (803) are down "eight" word and distribute, two the equal fixed mounting in top of guide plate (803) has brush (804) that have the water function of shovel.

3. A vacuum boiler according to claim 1, characterized in that: the water conservancy diversion mechanism is including seting up the cavity on installation piece (6), the activity sets in the cavity and has honeycomb duct (18) with guiding gutter complex, be equipped with spring (19) between honeycomb duct (18) and the cavity, vertical fixed inserting is equipped with heat insulating pipe (20) that the top extends to in the cavity on the diapire of installation piece (6), the bottom of heat insulating pipe (20) extends to in the hot media water.

4. A vacuum boiler according to claim 1, characterized in that: trigger mechanism includes cylinder (21) of fixed mounting on outlet pipe (5), two gas pockets have been seted up on cylinder (21), divide into first cavity and second cavity in cylinder (21), first cavity and second cavity are internal to have moved respectively and have been equipped first piston plate (22) and second piston plate (23), fixed mounting has switch (24) of establishing ties with water pump (17) on the roof of second cavity, fixed mounting has memory alloy (25) with outlet pipe (5) inner wall fixed connection on the diapire of first piston plate (22).

5. A vacuum boiler according to claim 1, characterized in that: the furnace body (1) is provided with a storage battery (26) connected with the water pump (17) in series, and the side wall of the furnace body (1) is fixedly provided with a temperature difference semiconductor (27) connected with the storage battery (26) in series.

6. A vacuum boiler according to claim 5, characterized in that: the furnace body (1) is fixedly provided with a heat dissipation frame (28), and the storage battery (26) is fixedly arranged on the heat dissipation frame (28).