CN213178273U

CN213178273U - Steam boiler

Info

Publication number: CN213178273U
Application number: CN202021743318.6U
Authority: CN
Inventors: 周海根
Original assignee: Zhejiang Pure Energy Saving Technology Co ltd
Current assignee: Zhejiang Pure Energy Saving Technology Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-05-11
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses a steam boiler, which comprises a boiler body and a heat exchanger, wherein high-temperature steam and low-temperature water generated by the boiler body exchange heat in the heat exchanger; the boiler barrel in the boiler body comprises an electrode barrel and a water storage barrel which are mutually isolated through a partition plate, the water storage barrel is positioned at the upper part of the boiler barrel, the electrode barrel is positioned at the lower part of the boiler barrel, an electrode is positioned in the electrode barrel, water in the electrode barrel flows into the water storage barrel through a driving device, and the water in the water storage barrel automatically flows into the electrode barrel; a steam channel is also arranged in the water storage cylinder, one end of the steam channel is positioned in the clapboard and is communicated with the inside of the electrode cylinder, and the other end of the steam channel is communicated with a first steam outlet at the top of the water storage cylinder; the heat exchanger comprises a tank body, a second steam outlet and a drain outlet, the second steam outlet is arranged at the top of the tank body, the drain outlet is arranged at the bottom of the tank body, a first descaling device is arranged on the side wall of the tank body, and scale attached to the inner circumferential surface of the tank body can be removed by the first descaling device.

Description

Steam boiler

Technical Field

The utility model relates to a boiler equipment technical field especially relates to a steam boiler.

Background

The scale is formed because a layer of thick impurities can grow on the inner wall of a container which is often in direct contact with water for a long time, and the common scale is formed because calcium sulfate which is slightly soluble in water in the water is separated out due to the evaporation of the water after the container is burnt for many times, the originally dissolved calcium bicarbonate and magnesium bicarbonate are decomposed in boiling water, carbon dioxide is released, calcium carbonate and magnesium hydroxide which are difficult to dissolve are also precipitated, and MgCO3 is sometimes generated, so the scale is formed.

However, the steam engine appearing in the market at present does not have a device for cleaning the scale on the inner side of the steam engine, the scale is attached to the inner wall of the tank body of the steam engine and the electric heating tube, the efficiency of heating the electric heating tube is reduced, the water inside the steam engine is not heated conveniently, the later period is very troublesome when the scale on the inner side of the steam engine is cleaned, and the quality of steam is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam boiler to the adnexed incrustation scale of the internal wall of clearance jar.

In order to achieve the purpose, the technical scheme of the utility model provides a steam boiler, which comprises a boiler body and a heat exchanger arranged at one side of the boiler body, wherein the high-temperature steam generated by the boiler body and the low-temperature water exchange heat in the heat exchanger;

the boiler barrel in the boiler body comprises an electrode barrel and a water storage barrel which are mutually isolated through a partition plate, wherein the water storage barrel is positioned at the upper part of the boiler barrel, the electrode barrel is positioned at the lower part of the boiler barrel, an electrode is positioned in the electrode barrel, water in the electrode barrel flows into the water storage barrel through a driving device, and the water in the water storage barrel automatically flows into the electrode barrel;

a steam channel is also arranged in the water storage cylinder, one end of the steam channel is positioned in the clapboard and is communicated with the inside of the electrode cylinder, and the other end of the steam channel is communicated with a first steam outlet at the top of the water storage cylinder;

the heat exchanger comprises a tank body, a second steam outlet and a sewage outlet, the second steam outlet is arranged at the top of the tank body, the sewage outlet is arranged at the bottom of the tank body, a first descaling device is arranged on the side wall of the tank body, the first descaling device comprises a lifting driving device, a rotary driving device and a vibrating device, the lifting driving device is axially arranged on the side wall of the tank body, the rotary driving device is arranged on the lifting driving device, the rotary driving device extends around the outer circumferential surface of the tank body, the vibrating device is arranged on the rotary driving device, the lifting driving device drives the rotary driving device to ascend or descend along the axial direction of the tank body, and the rotary driving device can enable the vibrating device to rotate along the outer circumferential surface of the tank body, the vibration device strikes the side wall of the tank body to remove scale.

As one of the preferable schemes, the lifting driving device comprises a plurality of linear guide rails and at least one telescopic cylinder, the plurality of linear guide rails are axially and uniformly arranged on the side wall of the tank body, and the at least one telescopic cylinder is axially arranged outside the tank body;

the rotary driving device comprises two annular guide rails, at least two sliding blocks and a bearing plate, the two annular guide rails are respectively provided with a plurality of first sliding grooves, the plurality of first sliding grooves are respectively buckled on the plurality of linear guide rails, and the two annular guide rails are arranged on the plurality of linear guide rails at intervals and in parallel, the piston rod of the at least one telescopic cylinder is connected with the annular guide rails, the at least one telescopic cylinder drives the annular guide rails to slide on the linear guide rails, the cross sections of the two annular guide rails are both of T-shaped structures, the at least two sliding blocks are respectively provided with a second sliding groove, the at least two sliding blocks are respectively buckled on the two annular guide rails, the bearing plate is arranged on the side surfaces of the at least two sliding blocks, the bearing plate is provided with avoidance holes, and can slide along the two annular guide rails through the at least two sliding blocks;

the vibration device comprises a first shell, a first bracket, a first motor, a first disc, a first connecting rod, a first guide groove, a first slider and a first vibrating rod, wherein the first bracket is arranged on the side surface of the bearing plate, the first shell is arranged on the first bracket, the first motor is arranged in the first shell, the first disc is arranged on a rotating shaft of the first motor, one end of the first connecting rod is arranged at the eccentric position of the first disc, the other end of the first connecting rod is connected with the first slider, the first guide groove is arranged in the first shell, the first slider is positioned in the first guide groove, the first slider can slide along the first guide groove, the first vibrating rod penetrates through the avoiding hole, and one end of the first vibrating rod is arranged on the first slider, the other end of the first vibrating rod corresponds to the side wall of the tank body.

As one of the preferable schemes, a second descaling device is disposed at the bottom of the tank, the second descaling device includes a second housing, a second bracket, a second motor, a second disc, a second connecting rod, a second guide groove, a second slider and a second vibrating rod, the second bracket is disposed at the bottom of the tank, the second housing is disposed on the second bracket, the second motor is disposed in the second housing, the second disc is disposed on a rotating shaft of the second motor, one end of the second connecting rod is disposed at an eccentric position of the second disc, the other end of the second connecting rod is connected with the second slider, the second guide groove is disposed in the second housing, the second slider is located in the second guide groove, the second slider can slide along the second guide groove, and one end of the second vibrating rod is disposed on the second slider, the other end of the second vibrating rod corresponds to the outer wall of the tank body;

the bottom of the tank body is provided with a third descaling device, the third descaling device comprises a descaling agent tank body and a pressure pump, one end of the pressure pump is communicated with the descaling agent tank body, and the other end of the pressure pump is communicated with the bottom of the tank body.

As one of the preferable schemes, a descending pipe and an ascending pipe are arranged on the outer side of the boiler body; water in the electrode cylinder enters the water storage cylinder through the ascending pipe, and water in the water storage cylinder enters the electrode cylinder through the descending pipe.

As one of the preferable schemes, the driving device is a liquid level pump, and the liquid level pump is arranged on the ascending pipe; the water storage cylinder is provided with a first liquid level meter, and the electrode cylinder is provided with a second liquid level meter; the down pipe is provided with an electric valve, and the opening and closing of the electric valve and the liquid level pump are controlled through the first liquid level meter and the second liquid level meter.

As one of the preferred schemes, the heat exchanger is a vertical shell-and-tube heat exchanger, and a vertical heat exchange tube is arranged in the heat exchanger; high-temperature steam generated by the boiler body flows outside the heat exchange pipe, low-temperature water flows inside the heat exchange pipe, and low-temperature condensed water is formed after the high-temperature steam releases heat; the water level of the condensed water in the heat exchanger is higher than that in the electrode cylinder, and the condensed water automatically flows back to the electrode cylinder by the water level difference.

As one of the preferable schemes, high-temperature steam from a first steam outlet at the top of the boiler body enters a heat exchanger through a steam pipe, and condensed water in the heat exchanger enters an electrode cylinder through a condensation pipe.

As one preferable scheme, the bottom of the heat exchanger is provided with a water inlet, the water inlet is connected with a water supply pipe, and the water supply pipe is provided with a water supply pump.

As one preferable scheme, a plurality of inner cylinders with the same shape are uniformly distributed in the electrode cylinder along the circumferential direction, and adjacent inner cylinders share one side surface; the electrode consists of a plurality of phase electrodes with the same shape, and each phase electrode is correspondingly immersed in one inner cylinder; the cross section of each inner cylinder consists of five straight lines and an arc line, the arc surface where the arc line is located is the wall surface of the electrode cylinder, and the side surfaces of all the inner cylinders closest to the center of the furnace cylinder form an equilateral polygon.

As one of the preferable schemes, the number of the inner cylinders and the number of the phase electrodes are three, the three groups of the inner cylinders and the three groups of the phase electrodes are uniformly distributed around the central axis of the electrode cylinder, and the included angles between the adjacent inner cylinders and the adjacent phase electrodes are 120 degrees.

In conclusion, the application the utility model discloses steam boiler's technical scheme has following beneficial effect at least: the first descaling device of the steam boiler drives the first disc to rotate through the first motor, then drives the first sliding block to slide in the first guide groove through the first connecting rod, so as to drive the first vibrating rod to beat the outer wall of the tank body, the first vibrating rod beats the vibration wave generated by the tank body to loosen the scale attached to the inner wall of the tank body of the heat exchanger, the vibration wave reduces the adhesive force of the scale, the scale is gradually beaten by the vibration wave to be scattered at the bottom of the tank body, the beaten scale can be discharged out of the tank body through the sewage discharge port, so as to clean the scale attached to the inner wall of the tank body, moreover, the rotary driving device can enable the vibrating device to rotate along the outer circumferential surface of the tank body, the vibrating device gradually beats at different positions corresponding to the outer circumferential surface of the tank body, the lifting driving device drives the rotary driving device and the vibrating device to ascend or descend along the axial direction of the tank body, so as to enable the vibrating device to gradually beat at, the vertical linear motion and the horizontal rotation motion are mutually matched to descale, the two shafts are linked to sequentially strike the outer circumferential side wall of the tank body, scale on the inner circumferential surface of the tank body is comprehensively cleaned, and the descaling effect is excellent and the use is convenient.

In order to make the present invention and other objects, features, functions and advantages thereof clearer and more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a steam boiler according to the present invention;

FIG. 2 is a schematic structural diagram of a first descaling device according to the present invention;

fig. 3 is a schematic structural diagram of a second descaling device according to the present invention.

Description of reference numerals: 1. a furnace barrel; 11. an electrode cylinder; 12. a water storage cylinder; 2. a heat exchanger; 21. a heat exchange pipe; 3. an electrode; 4. a second descaling device; 41. a second housing; 42. a second disc; 43. a second link; 44. a second guide groove; 45. a second slider; 46. a second vibratory rod; 47. a second bracket; 5. a steam channel; 6. a partition plate; 7. a first steam outlet; 8. a steam pipe; 9. a first descaling device; 91. a vibrating device; 911. a first housing; 912. a first disc; 913. a first link; 914. a first guide groove; 915. a first slider; 916. a first bracket; 917. a first vibratory rod; 92. a rotation driving device; 921. a carrier plate; 922. a slider; 923. an annular guide rail; 93. a lift drive; 931. a telescopic cylinder; 932. a linear guide rail; 10. an ascending pipe; 13. a down pipe; 14. a first liquid level meter; 15. a second level gauge; 16. a liquid level pump; 17. an electrically operated valve; 18. a water supply pipe; 19. a feed pump; 20. a second steam outlet; 22. a sewage draining outlet; 23. a water inlet; 24. a descaling agent tank body; 25. a pressure pump; 26. a condenser tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, for the sake of clearer description, the following explanation is made: the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are defined with reference to the orientation or positional relationship shown in the drawings, which are used for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and "third" are used merely for purposes of clarity or simplicity of description, and are not to be construed as indicating or implying a relative importance or quantity. "axial" in this context refers to an up-down orientation as shown in FIG. 1.

Referring to fig. 1 to 3, the embodiment provides an immersed electrode 3 steam boiler, which includes a boiler body and a heat exchanger 2 disposed at one side of the boiler body, wherein high-temperature steam generated by the boiler body exchanges heat with low-temperature water in the heat exchanger 2, the high-temperature steam releases heat in the heat exchanger 2 and then turns into condensed water to return to the boiler body, the condensed water is continuously heated by the electrode 3 in the boiler body to become high-temperature steam, the high-temperature steam circulates repeatedly and continuously, a circulating medium is not changed, and the conductivity is not changed. The low-temperature water is changed into high-temperature steam after absorbing heat in the heat exchanger 2, the high-temperature steam is consumed by a required user, and new low-temperature water is continuously supplied to the heat exchanger 2. This embodiment adopts heat exchanger 2 and boiler body to carry out the heat transfer, and 3 electrodes only heat the internal confined heat medium water of boiler, produce steam through 2 heating outside feedwater of heat exchanger, greatly reduced the requirement that boiler body used quality of water, the internal seal heat medium water conductivity can not change, need not to carry out the conductivity adjustment, phenomena such as scale deposit, corruption can not appear in electrode 3, the operation is stable, longe-lived.

Wherein, the heat exchanger 2 comprises a tank body, a second steam outlet 20 and a sewage draining exit 22, the second steam outlet 20 is arranged at the top of the tank body, the sewage draining exit 22 is arranged at the bottom of the tank body, the side wall of the tank body is provided with a first descaling device 9, the first descaling device 9 comprises a lifting driving device 93, a rotary driving device 92 and a vibrating device 91, the lifting driving device 93 is axially arranged at the side wall of the tank body, the rotary driving device 92 is arranged on the lifting driving device 93, and, a rotation driving means 92 extends around the outer circumferential surface of the can body, a vibration means 91 is provided on the rotation driving means 92, the lifting driving device 93 drives the rotary driving device 92 to ascend or descend along the axial direction of the tank body, the rotary driving device 92 can enable the vibration device 91 to rotate along the outer circumferential surface of the tank body, and the vibration device 91 strikes the side wall of the tank body to remove scales.

In one embodiment, the lifting driving device 93 includes a plurality of linear guide rails 932 and at least one telescopic cylinder 931, the linear guide rails 932 are axially and uniformly disposed on the sidewall of the tank, and the at least one telescopic cylinder 931 is axially disposed outside the tank. The piston rod of the telescopic cylinder 931 acts on the annular guide rail 923 to move the rotary drive device 92 and the vibration device 91 up and down in the axial direction of the tank.

The rotary driving device 92 comprises two annular guide rails 923, at least two sliding blocks 922 and a bearing plate 921, wherein the two annular guide rails 923 are respectively provided with a plurality of first sliding grooves which are respectively buckled on a plurality of linear guide rails 932, moreover, two annular guide rails 923 are arranged on the plurality of linear guide rails 932 at intervals and in parallel, the piston rod of at least one telescopic cylinder 931 is connected with the annular guide rails 923, at least one telescopic cylinder 931 drives the annular guide rails 923 to slide on the linear guide rails 932, the cross sections of the two annular guide rails 923 are both in a T-shaped structure, at least two sliders 922 are respectively provided with a second sliding groove, at least two sliders 922 are respectively buckled on the two annular guide rails 923, the bearing plate 921 is arranged on the side surfaces of at least two sliders 922, and, the bearing plate 921 is provided with the dodging hole, and the bearing plate 921 can slide along two annular guide rails 923 through at least two sliders 922.

The vibration device 91 comprises a first housing 911, a first bracket 916, a first motor, a first disc 912, a first link 913, a first guide groove 914, a first slider 915 and a first vibration rod 917, wherein the first bracket 916 is disposed at a side surface of the bearing plate 921, the first housing 911 is disposed on the first bracket 916, the first motor is disposed in the first housing 911, the first disc 912 is disposed on a rotating shaft of the first motor, one end of the first link 913 is disposed at an eccentric position of the first disc 912, the other end of the first link 913 is connected with the first slider 915, the first guide groove 914 is disposed in the first housing 911, the first slider 915 is disposed in the first guide groove 914, and, the first slider 915 can slide along the first guide groove 914, the first vibrating rod 917 passes through the avoiding hole, one end of the first vibrating rod 917 is disposed on the first sliding block 915, and the other end of the first vibrating rod 917 corresponds to a sidewall of the can body. In order to prevent the first vibrating rod 917 from hitting the outer wall of the tank and damaging the tank, a protective pad may be provided at the free end of the first vibrating rod 917. Wherein, install vibrating device 91 on loading board 921, rotary drive device 92 can make vibrating device 91 rotate along the outer circumferential surface of the jar body, for first vibrting spear 917 does not touch linear guide 932 when making vibrating device 91 rotate, vibrating device 91 can shrink first vibrting spear 917, and then drive vibrating device 91 and rotate around the outer circumferential side wall of the jar body to hit in proper order and remove the scale.

Wherein, the first descaling device 9 of the steam boiler drives the first disc 912 to rotate through the first motor, and then drives the first slider 915 to slide in the first guide groove 914 through the first connecting rod 913, so as to drive the first vibrating rod 917 to beat the outer side wall of the tank body, the vibrating wave generated by the first vibrating rod 917 beating the tank body can loosen the scale attached to the inner wall of the tank body of the heat exchanger 2, the vibrating wave reduces the adhesion of the scale, the scale is gradually beaten by the vibrating wave and scattered at the bottom of the tank body, the beaten scale can be discharged out of the tank body through the drain outlet 22, so as to clean the scale attached to the inner wall of the tank body, moreover, the rotary driving device 92 can rotate the vibrating device 91 along the outer circumferential surface of the tank body, the vibrating device 91 gradually beats corresponding to different positions of the outer circumferential surface of the tank body, the lifting driving device 93 drives the rotary driving device 92 and the vibrating device 91 to ascend or descend along the axial direction of, the vibrating device 91 can beat different positions of the side wall of the tank body gradually, the up-and-down linear motion and the horizontal rotation motion are matched with each other to remove scale, the two shafts are linked to sequentially beat the outer circumferential side wall of the tank body, scale on the inner circumferential surface of the tank body is completely removed, the scale removing effect is excellent, and the use is convenient.

In one embodiment, the boiler barrel 1 in the boiler body comprises an electrode barrel 11 and a water storage barrel 12 which are isolated from each other by a partition plate 6, wherein the water storage barrel 12 is positioned at the upper part of the boiler barrel 1, the electrode barrel 11 is positioned at the lower part of the boiler barrel 1, the electrode 3 is positioned in the electrode barrel 11, and water is heated by the electrode 3 in the electrode barrel 11 to generate high-temperature steam. When the heating quantity of the boiler body needs to be reduced, the water in the electrode cylinder 11 flows into the water storage cylinder 12 through the driving device. When the heating quantity of the boiler body needs to be increased, the water in the water storage cylinder 12 automatically flows into the electrode cylinder 11 through the action of gravity. In order to convey the steam generated in the electrode cylinder 11 out of the boiler body conveniently, a steam channel 5 is further arranged in the water storage cylinder 12, one end of the steam channel 5 is located in the partition plate 6 and communicated with the inside of the electrode cylinder 11, and the other end of the steam channel is communicated with a first steam outlet 7 in the top of the water storage cylinder 12. The water storage cylinder 12 and the electrode cylinder 11 are arranged up and down separately, the output power is changed through the change of the water level, the structure is simple and reliable, and the failure rate is low.

Specifically, the bottom of the tank is provided with a second descaling device 4, the second descaling device 4 comprises a second housing 41, a second bracket 47, a second motor, a second disk 42, a second connecting rod 43, a second guide groove 44, a second slider 45 and a second vibrating rod 46, the second bracket 47 is arranged at the bottom of the tank, the second housing 41 is arranged on the second bracket 47, the second motor is arranged in the second housing 41, the second disk 42 is arranged on a rotating shaft of the second motor, one end of the second connecting rod 43 is arranged at the eccentric position of the second disk 42, the other end of the second connecting rod 43 is connected with the second slider 45, the second guide groove 44 is arranged in the second housing 41, and the second slider 45 is positioned in the second guide groove 44, the second slider 45 is slidable along the second guide groove 44, one end of the second vibration rod 46 is provided on the second slider 45, and the other end of the second vibration rod 46 corresponds to the outer wall of the can body.

Wherein, this steam boiler's second scale removal device 4 passes through the second motor and drives the rotation of second disc 42, rethread second connecting rod 43 drives second slider 45 and slides in second guide way 44, and drive the outer wall that the jar body was beaten to second vibrating arm 46, the adnexed incrustation scale of the diapire of the jar body of heat exchanger 2 is not hard up to the vibration wave energy that second vibrating arm 46 beaten jar body produced, the vibration wave reduces the adhesive force of incrustation scale, the incrustation scale is beaten by the vibration wave gradually and is scattered in the bottom of the jar body, the incrustation scale that knocks down can pass through drain outlet 22 and discharge outside the jar body, thereby the adnexed incrustation scale of the internal wall of the bottom of the clearance jar, further the incrustation scale on the internal. In order to prevent the second vibration rod 46 from striking the outer wall of the tank and damaging the tank, a protective pad may be provided at the free end of the second vibration rod 46.

Further, a third descaling device is arranged at the bottom of the tank body, the third descaling device comprises a descaling agent tank body 24 and a pressure pump 25, one end of the pressure pump 25 is communicated with the descaling agent tank body 24, the other end of the pressure pump is communicated with the bottom of the tank body, the descaling agent in the descaling agent tank body 24 is pumped into the tank body through a pipeline by the pressure pump 25, the descaling agent soaks the scale on the inner wall of the tank body of the heat exchanger 2, the scale is gradually dissolved in the descaling agent, the drain outlet 22 is opened, and the scale and the descaling agent can be discharged through the drain outlet 22, so that the scale attached to the inner wall of the tank body is cleaned.

In one embodiment, a down pipe 13 and an up pipe 10 are further arranged outside the boiler body, water in the electrode cylinder 11 enters the water storage cylinder 12 through the up pipe 10, water in the water storage cylinder 12 enters the electrode cylinder 11 through the down pipe 13, an outlet end of the up pipe 10 is located at the upper part of the water storage cylinder 12, and an inlet end of the down pipe 13 is located at the lower part of the water storage cylinder 12. The driving device is a liquid level pump 16, and the liquid level pump 16 is arranged at the bottom of the ascending pipe 10. The electrode cylinder 11 is provided with a second liquid level meter 15, and the second liquid level meter 15 is used for monitoring the height of the water level in the electrode cylinder 11. The water storage cylinder 12 is provided with a first liquid level meter 14, and the first liquid level meter 14 is used for monitoring the height of the water level in the water storage cylinder 12. The down pipe 13 is provided with an electric valve 17, and the first liquid level meter 14 and the second liquid level meter 15 jointly control the opening and closing of the electric valve 17 and the liquid level pump 16. When the water level in the electrode cylinder 11 is more and the heating capacity of the boiler body needs to be reduced, the liquid level pump 16 is started, so that the water in the electrode cylinder 11 flows into the water storage cylinder 12 until the water level in the electrode cylinder 11 reaches a proper height, and the liquid level pump 16 is stopped. When the water level in the electrode cylinder 11 is low and the heating capacity of the boiler body needs to be increased, the electric valve 17 is opened, water in the water storage cylinder 12 flows into the electrode cylinder 11 under the action of gravity until the water level in the electrode cylinder 11 reaches a proper height, and the electric valve 17 is controlled to be closed. The water level in the electrode barrel 11 can be automatically adjusted, the structure is simple, and the boiler body is prevented from being broken down.

Specifically, the heat exchanger 2 is a vertical shell-and-tube heat exchanger 2, and a vertical heat exchange tube 21 is arranged inside the heat exchanger 2. High-temperature steam generated from the boiler body flows outside the heat exchange pipe 21, and low-temperature soft water flows inside the heat exchange pipe 21. After the heat exchange is performed between the medium inside and outside the heat exchange tube 21, the high-temperature steam generated by the boiler body releases heat to form low-temperature condensed water. In order to facilitate the condensed water to flow into the electrode cylinder 11, the water level of the condensed water in the heat exchanger 2 is higher than that of the electrode cylinder 11, and the condensed water automatically flows back to the electrode cylinder 11 by the water level difference. High-temperature steam from a first steam outlet 7 at the top of the boiler body enters the heat exchanger 2 through a steam pipe 8, and the steam pipe 8 is connected with the upper part of the side surface of the heat exchanger 2. The condensed water in the heat exchanger 2 enters the electrode cylinder 11 through the condensation pipe 26, and the condensation pipe 26 is connected with the lower part of the side surface of the heat exchanger 2. The top of the heat exchanger 2 is provided with a second steam outlet 20, and the high-temperature steam generated in the heat exchange tube 21 of the heat exchanger 2 is supplied to a required user through the second steam outlet 20. In order to ensure that the sewage in the heat exchanger 2 can be drained, the bottom end of the heat exchanger 2 is provided with a sewage outlet 22. The bottom of the heat exchanger 2 is provided with a water inlet 23, the water inlet 23 is connected with a water supply pipe 18, and the water supply pipe 18 is provided with a water supply pump 19. In this embodiment, feed water of the shell-and-tube heat exchanger 2 enters the heat exchanger 2 from the bottom, and high-temperature steam generated after being heated by the heat medium steam is discharged from the second steam outlet 20 at the top of the tank body for use.

Furthermore, a plurality of inner cylinders with the same shape are uniformly distributed in the electrode cylinder 11 along the circumferential direction, adjacent inner cylinders share one side surface, and all the inner cylinders are uniformly distributed on the same circle center. The electrode 3 is composed of a plurality of phase electrodes with the same shape, and all the phase electrodes are uniformly distributed on the same circle center. Each phase electrode is immersed in one inner cylinder correspondingly. The section of each inner cylinder consists of five straight lines and an arc line, the arc surface where the arc line is located is the wall surface of the electrode cylinder 11, and the side surfaces of all the inner cylinders closest to the center of the furnace cylinder 1 form an equilateral polygon. The number of the inner cylinders and the number of the phase electrodes are three, the three groups of the inner cylinders and the three groups of the phase electrodes are uniformly distributed around the central axis of the electrode cylinder 11, and the included angles between the adjacent inner cylinders and the adjacent phase electrodes are 120 degrees.

At present, three-phase alternating current is used for production and distribution in China, three groups of phase electrodes and three phase lines are connected in a one-to-one mode, and three phase electrodes which are uniformly arranged on the same plane are formed. The central line (commonly called zero line) is connected with the boiler body to form an electric load path. The outside of the boiler body is also provided with a binding post, and the phase electrode is communicated with an external power supply through the binding post. The phase electrodes correspond to the binding posts one by one to form three-phase electrodes. In the embodiment, because the water level of the three-phase electrode is uniform, the steam generation of the phase electrode is uniform, the current between the phase and the phase is almost the same, and the current of the central line is extremely low, the potential safety hazard caused by the unbalance of the three-phase electric field is avoided, and the use is safer.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A steam boiler is characterized by comprising a boiler body and a heat exchanger arranged on one side of the boiler body, wherein high-temperature steam generated by the boiler body exchanges heat with low-temperature water in the heat exchanger;

2. A steam boiler according to claim 1, wherein the lifting driving means comprises a plurality of linear guide rails axially and uniformly arranged on the side wall of the boiler body and at least one telescopic cylinder axially arranged outside the boiler body;

3. A steam boiler according to claim 2, wherein the bottom of the vessel is provided with a second descaling device comprising a second casing, a second bracket, a second motor, a second disk, a second connecting rod, a second guide groove, a second slider and a second vibration rod, the second bracket is provided at the bottom of the vessel, the second casing is provided on the second bracket, the second motor is provided in the second casing, the second disk is provided on the rotating shaft of the second motor, one end of the second connecting rod is provided at the eccentric position of the second disk, the other end of the second connecting rod is connected with the second slider, the second guide groove is provided in the second casing, the second slider is positioned in the second guide groove, and the second slider can slide along the second guide groove, one end of the second vibrating rod is arranged on the second sliding block, and the other end of the second vibrating rod corresponds to the outer wall of the tank body;

4. A steam boiler according to claim 3, characterized in that the outside of the boiler body is provided with a down tube and an up tube; water in the electrode cylinder enters the water storage cylinder through the ascending pipe, and water in the water storage cylinder enters the electrode cylinder through the descending pipe.

5. A steam boiler according to claim 4, characterized in that the driving means is a level pump, which is arranged on the ascending tube; the water storage cylinder is provided with a first liquid level meter, and the electrode cylinder is provided with a second liquid level meter; the down pipe is provided with an electric valve, and the opening and closing of the electric valve and the liquid level pump are controlled through the first liquid level meter and the second liquid level meter.

6. A steam boiler according to claim 5, characterized in that the heat exchanger is a vertical shell and tube heat exchanger, which is internally provided with vertical heat exchange tubes; high-temperature steam generated by the boiler body flows outside the heat exchange pipe, low-temperature water flows inside the heat exchange pipe, and low-temperature condensed water is formed after the high-temperature steam releases heat; the water level of the condensed water in the heat exchanger is higher than that in the electrode cylinder, and the condensed water automatically flows back to the electrode cylinder by the water level difference.

7. A steam boiler according to claim 6, characterized in that the high temperature steam from the first steam outlet at the top of the boiler body enters the heat exchanger through the steam pipe, and the condensed water in the heat exchanger enters the electrode cylinder through the condensation pipe.

8. A steam boiler according to claim 7, characterized in that the bottom of the heat exchanger is provided with a water inlet, to which a water supply pipe is connected, which is provided with a feed pump.

9. A steam boiler according to claim 8, wherein a plurality of inner cylinders having the same shape are uniformly arranged in the electrode cylinder along the circumferential direction, and adjacent inner cylinders share one side surface; the electrode consists of a plurality of phase electrodes with the same shape, and each phase electrode is correspondingly immersed in one inner cylinder; the cross section of each inner cylinder consists of five straight lines and an arc line, the arc surface where the arc line is located is the wall surface of the electrode cylinder, and the side surfaces of all the inner cylinders closest to the center of the furnace cylinder form an equilateral polygon.

10. A steam boiler according to claim 9, characterized in that the number of the inner cylinders and the number of the phase electrodes are three, the three groups of the inner cylinders and the three groups of the phase electrodes are evenly distributed around the central axis of the electrode cylinder, and the included angles between the adjacent inner cylinders and the adjacent phase electrodes are 120 degrees.