阅读说明：本技术 一种应用于蒸汽发生器的多循环系统 (Multi-circulation system applied to steam generator ) 是由 田景宇 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种应用于蒸汽发生器的多循环系统,燃烧室内安装且加热用于产生蒸汽的立式过水受热结构,立式过水受热结构的主蒸汽出口与汽水分离器的进气口连通,汽水分离器的出水端通过循环水泵与立式过水受热结构的主进水端连通,立式过水受热结构的主进水端还与增压补水泵的出水端连通,增压补水泵的进水端与立式过水受热结构的副出水端连通,立式过水受热结构的副进水端与安装在燃烧室烟气排放口处的节能器连通。该蒸汽发生器循环采用闭式水循环系统和外界补水系统相结合的供水模式,没有明显的汽水分界线,避免锅体干烧,延长使用寿命,立式过水受热结构保证整个水循环系统中没有大量的运行水,提高了安全性、节能性和稳定性。(The invention discloses a multi-circulation system applied to a steam generator.A vertical type water passing and heating structure for generating steam is installed and heated in a combustion chamber, a main steam outlet of the vertical type water passing and heating structure is communicated with an air inlet of a steam-water separator, a water outlet end of the steam-water separator is communicated with a main water inlet end of the vertical type water passing and heating structure through a circulating water pump, the main water inlet end of the vertical type water passing and heating structure is also communicated with a water outlet end of a pressurizing water supplementing pump, a water inlet end of the pressurizing water supplementing pump is communicated with an auxiliary water outlet end of the vertical type water passing and heating structure, and the auxiliary water inlet end of the vertical type water passing and heating structure is communicated with an energy saver installed at a smoke gas discharge port of the combustion chamber. This steam generator circulation adopts the water supply mode that closed hydrologic cycle system and external water charging system combined together, does not have obvious steam-water boundary, avoids the pot body dry combustion method, increase of service life, and vertical water heated structure guarantees that there is not a large amount of operating water in whole hydrologic cycle system, has improved security, energy-conservation nature and stability.)

1. A multi-cycle system for a steam generator, comprising: the vertical water passing heating structure comprises a combustion chamber (1), a vertical water passing heating structure (2) used for generating steam is installed and heated in the combustion chamber (1), a main steam outlet of the vertical water passing heating structure (2) is communicated with an air inlet of a steam-water separator (13), a water outlet end of the steam-water separator (13) is communicated with a main water inlet end of the vertical water passing heating structure (2) through a circulating water pump (14), the main water inlet end of the vertical water passing heating structure (2) is also communicated with a water outlet end of a pressurizing water supplementing pump (15), a water inlet end of the pressurizing water supplementing pump (15) is communicated with an auxiliary water outlet end of the vertical water passing heating structure (2), and the auxiliary water inlet end of the vertical water passing heating structure (2) is communicated with an energy saver (16) installed at a smoke discharge port of the combustion chamber (1).

2. The multi-cycle system for a steam generator according to claim 1, wherein: the vertical water passing and heating structure (1) comprises a main heated body (3), an auxiliary heated body (4), a communicating pipe (5) and a main steam pipe (9); wherein the content of the first and second substances,

the main heated body (3) is composed of a plurality of vertical frame columns (6), the vertical frame columns (6) are coaxially arranged in sequence from large to small along the aperture, and a flue (7) is reserved between the vertical frame columns;

the auxiliary heat receiver (4) is composed of a plurality of annular pipes (8), and the annular pipes (8) are coaxially arranged along the sequence of the opening diameters from large to small and are positioned above the flue (7);

the communicating pipe (5) sequentially communicates the water outlet end of the energy saver (16) with the auxiliary water inlet end of the annular pipe (8) according to the water flow direction, the auxiliary water outlet end of the annular pipe (8) is communicated with the main water inlet end of the vertical frame column (6) through the pressurizing water replenishing pump (15), and the main steam outlet of the vertical frame column (6) is communicated with the steam inlet of the steam main pipe (9).

3. The multi-cycle system applied to a steam generator according to claim 2, wherein: the vertical frame column (6) comprises an upper header (10), vertical heated tubes (11) and a lower header (12), wherein the upper header (10) and the lower header (12) are coaxially and symmetrically arranged, and the vertical heated tubes (11) are uniformly arranged and communicated with the upper header (10) and the lower header (12).

4. The multi-cycle system applied to a steam generator according to claim 2, wherein: the upper header (10) is provided with at least one steam-water collecting point, and the steam-water collecting point is communicated with the air inlet end of the steam main pipe (9) through the communicating pipe (5).

5. A multi-cycle system for use with a steam generator according to claim 42, further comprising: the caliber of the upper header (10) is smaller than that of the lower header (12), and the vertical heating pipes (11) between the upper header (10) and the lower header (12) are of a gathering structure which is inclined inwards from bottom to top.

6. The multi-cycle system applied to a steam generator according to claim 2, wherein: the vertical heating pipes (11) between the upper header (10) and the lower header (12) are in a cross net structure.

7. The multi-cycle system applied to a steam generator according to claim 2, wherein: and a temperature display is arranged on the upper header (10).

8. The multi-cycle system for a steam generator according to claim 1, wherein: and the water outlet ends of the circulating water pump (14) and the pressurizing water replenishing pump (15) are provided with one-way check valves (17).

Technical Field

The invention relates to the technical field of steam generators, in particular to a multi-circulation system applied to a steam generator.

Background

A steam generator, also called a steam heat source machine (commonly called a boiler), is a mechanical device that heats water into hot water or steam by using heat energy of fuel or other energy sources. A typical steam generator is equipped with a large heating "pot" for heating and storing hot water and outputting steam, which is provided with a water replenishment pump for maintaining the water level inside the pot.

During the in-service use, if safety relief valve and water pump break down and can lead to boiler internal pressure to rise suddenly, store a large amount of heat energy and pressure in the heating "pot", when surpassing the critical point, then the production stopping is light, and then the incident takes place for the heavy thing, for example the explosion, the water capacity of pot is big more, and the explosion power is stronger, and the assumed water capacity is 100 kilograms, and the energy that its explosion released is equivalent with 1 kilogram TNT explosive, and the destructive power is very big. In the prior art, a common steam generator usually holds thousands of kilograms of softened water, so that great potential safety hazard is brought to safe heat supply.

In addition, when a general steam generator heats a large amount of softened water to generate saturated steam, there are the following problems: firstly, have very big steam pocket in the steam system, secondly heating "pot" volume and structure lead to heat exchange efficiency low, and it is very slow that all can make saturated water heat-up, has wasted a large amount of steel and fuel, and heat exchange efficiency is poor, and the steam pocket has very big potential safety hazard moreover, neither energy-conservation nor environmental protection.

In the prior art, a steam boiler water operation system is single, namely natural circulation and forced circulation.

The natural circulation system uses natural gas or electric heating as a main heat source, heats a large amount of softened water to generate saturated steam, can generate a large steam pocket, is slow in temperature rise, wastes a large amount of steel and fuel, is poor in heat exchange efficiency, has a large potential safety hazard, and is neither energy-saving nor environment-friendly.

The forced circulation boiler water pump is always in a high-pressure operation state, the operation part is stable, once the water pump fails, the production is stopped if the water pump fails, and safety accidents occur if the water pump fails, so that a multi-system operation steam generator needs to be developed, the defects are overcome, and the safety, the energy saving performance and the stability of the steam boiler are increased.

Disclosure of Invention

The invention aims to provide a multi-circulation system applied to a steam generator, and aims to solve the problems of high water capacity, high danger coefficient, poor heat exchange efficiency, slow temperature rise and high water circulation failure rate of the steam generator, and low safety, energy conservation and stability.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a be applied to steam generator's multicycle system, includes the combustion chamber, the vertical water heating structure that crosses that installation and heating are used for producing steam in the combustion chamber, the vertical main steam outlet that crosses the water heating structure communicates with catch water's air inlet, catch water's play water end pass through circulating water pump with the vertical main end intercommunication that crosses the water heating structure that intakes, the vertical main end of intaking that crosses the water heating structure still communicates with the play water end of pressure boost moisturizing pump, the end of intaking of pressure boost moisturizing pump with the vertical vice play water end intercommunication that crosses the water heating structure, the vertical vice end of intaking that crosses the water heating structure with install the energy-saving appliance intercommunication of combustion chamber flue gas discharge mouth department.

The further technical scheme is as follows: the vertical water passing heated structure comprises a main heated body, an auxiliary heated body, a communicating pipe and a steam main pipe; wherein the content of the first and second substances,

the main heating body consists of a plurality of vertical frame columns, the vertical frame columns are coaxially arranged along the opening diameter in a descending order, and a flue is reserved between the vertical frame columns;

the auxiliary heating body consists of a plurality of annular pipes, and the plurality of annular pipes are coaxially arranged along the sequence of the caliber from large to small and are positioned above the flue;

the communicating pipe sequentially communicates the water outlet end of the energy saver with the auxiliary water inlet end of the annular pipe according to the water flow direction, the auxiliary water outlet end of the annular pipe is communicated with the main water inlet end of the vertical frame column through the pressurizing water replenishing pump, and the main steam outlet of the vertical frame column is communicated with the steam inlet of the steam main pipe.

The further technical scheme is as follows: the vertical frame column comprises an upper collecting box, a vertical heating pipe and a lower collecting box, wherein the upper collecting box and the lower collecting box are coaxially and symmetrically arranged, and the vertical heating pipes are uniformly arranged and communicated with the upper collecting box and the lower collecting box.

The further technical scheme is as follows: the upper header is provided with at least one steam-water collecting point, and the steam-water collecting point is communicated with the air inlet end of the steam main pipe through the communicating pipe.

The further technical scheme is as follows: the caliber of the upper header is smaller than that of the lower header, and the vertical heating pipes between the upper header and the lower header are of a gathering structure which is inclined inwards from bottom to top.

The further technical scheme is as follows: the vertical heating pipes between the upper header and the lower header are of a cross net structure.

The further technical scheme is as follows: and a temperature display is arranged on the upper header.

The further technical scheme is as follows: and the water outlet ends of the circulating water pump and the pressurizing water replenishing pump are provided with one-way check valves.

Compared with the prior art, the invention can at least achieve one of the following beneficial effects:

1. the invention provides a multi-circulation system applied to a steam generator, which adopts a closed water circulation system and an external water replenishing system to be combined into a vertical water passing and heating structure for supplying water, has no obvious steam-water boundary, avoids dry burning of a pot body, prolongs the service life, has no large amount of running water in the whole water circulation system, avoids explosion danger during failure, and improves the safety, the energy conservation and the stability of the steam generator.

2. The steam generator has a vertical water passing heating structure, 1, the water capacity of the steam generator is greatly reduced, the steam generator is convenient to heat, large steam drums can be prevented from being generated, the danger coefficient of the steam generator is effectively reduced when a fault occurs, and the safety is improved; 2. by utilizing the vertical heat exchange structure, the heating area is increased, the heat exchange effect is improved, the heating speed is greatly increased, the use of combustion and energy is reduced, and the purposes of energy conservation and environmental protection are achieved.

Drawings

Fig. 1 is a schematic structural view of a multi-cycle system applied to a steam generator according to the present invention.

FIG. 2 is a schematic structural view of the vertical water heating structure shown in FIG. 1.

FIG. 3 is a schematic view of the heat receiver of FIG. 2 according to the present invention.

Fig. 4 is a schematic structural view of the neutral frame post of fig. 3 according to the present invention.

FIG. 5 is another structural schematic view of the vertical frame post of FIG. 3 according to the present invention.

FIG. 6 is another structural schematic view of the vertical frame post of FIG. 3 according to the present invention.

Reference numerals: 1. a combustion chamber; 2. a vertical water passing and heating structure; 3. a main heat receiver; 4. a secondary heat receiver; 5. a communicating pipe; 6. a vertical frame column; 7. a flue; 8. an annular tube; 9. a main steam pipe; 10. an upper header; 11. a vertical heated tube; 12. a lower header; 13. a steam-water separator; 14. a water circulating pump; 15. a pressurizing water replenishing pump; 16. an energy saver; 17. a one-way check valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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.

Example 1:

the embodiment is as shown in fig. 1, a be applied to steam generator's many circulation system, steam generator is also called the boiler, mainly is divided into furnace body and pot body two part structure, and the furnace body heat supply, the pot body produce steam after receiving the furnace body heating, and user side is given in steam transport, in addition have monitoring protection structure such as temperature, pressure, liquid level, specifically: a combustion chamber 1 (hearth) is arranged in the furnace body, a vertical type water passing heating structure 2 for generating steam is installed and heated in the combustion chamber 1, the vertical type water passing heating structure 2 replaces a traditional pot body to be heated and generate saturated steam, the water capacity of the system is effectively reduced, the heat exchange efficiency is improved, a main steam outlet of the vertical type water passing heating structure 2 is communicated with an air inlet of a steam-water separator 13, the steam-water separator 13 plays a role in separating steam and water in the steam generator, a water outlet end of the steam-water separator 13 is communicated with a main water inlet end of the vertical type water passing heating structure 2 through a circulating water pump 14 to supply high-temperature water back to a closed-loop water circulating system of the steam generator, the main water inlet end of the vertical type water passing heating structure 2 is also communicated with a water outlet end of a pressurizing water replenishing pump 15, and a water inlet end of the pressurizing water replenishing pump 15 is communicated with an auxiliary water outlet end of the vertical type water passing heating structure 2, the auxiliary water inlet end of the vertical water passing heating structure 2 is communicated with an energy saver 16 arranged at a smoke discharge port of the combustion chamber 1, the pressurizing water replenishing pump 15 serves as an external water replenishing system to replenish water for the closed-loop water circulating system on the one hand, and on the other hand, the auxiliary water outlet end (the water outlet end for waste heat water heating) of the vertical water passing heating structure 2 is pumped into the closed-loop water circulating system, so that heat energy waste is reduced, and the energy utilization efficiency is improved. This steam generator adopts closed water circulating system and external water charging system to combine to supply water for vertical water heating structure, does not have obvious soda boundary, avoids the pot body dry combustion method, increase of service life, does not have a large amount of operating water among the whole water circulating system, when avoiding the trouble, and dangerous emergence of explosion has improved this steam generator circulating system's security, energy-conservation nature and stability.

Example two:

the present embodiment shows a vertical superheating structure 1 as shown in fig. 2 and 3, and the vertical superheating structure 1 is a vertical heating structure composed of a main heated body 3, an auxiliary heated body 4, a communicating pipe 5 and a main steam pipe 9; the main heated body 3 consists of a plurality of vertical frame columns 6 with different apertures, the plurality of vertical frame columns 6 are coaxially arranged along the aperture in the descending order, and a flue 7 is reserved between the vertical frame columns 6; the auxiliary heat receiver 4 is composed of a plurality of annular pipes 8 with different calibers, and the annular pipes 8 are coaxially arranged along the order of the calibers from large to small and are positioned above the flue 7; the communicating pipe 5 sequentially communicates the water outlet end of the energy saver 16 with the auxiliary water inlet end of the annular pipe 8 according to the water flow direction, the auxiliary water outlet end of the annular pipe 8 is communicated with the main water inlet end of the vertical frame column 6 through the booster water replenishing pump 15, and the main steam outlet of the vertical frame column 6 is communicated with the steam inlet of the steam main pipe 9, the main heat receiver 3 consisting of a plurality of vertical frame columns 6 has the functions of water storage and heat exchange, the contact area with the flame in the combustion chamber 1 is increased and fully contacted, the heat exchange efficiency is improved, the water capacity and the steam pocket generation of the steam generator are reduced, the danger degree of the steam generator during the failure is effectively reduced, the auxiliary heat receiver 4 consisting of a plurality of annular pipes 8 can utilize the heat of the flue 7 formed among the plurality of vertical frame columns 6 to preheat the water body, the energy waste is reduced, the water capacity of the steam generator is greatly reduced by the vertical water passing heating structure, the steam generator is convenient to heat, can prevent the generation of a large steam drum, effectively reduces the danger coefficient of the steam generator when a fault occurs, and improves the safety; and the heating area is increased, the heat exchange effect is improved, the temperature rise speed is greatly improved, the combustion and energy consumption are reduced, and the purposes of energy conservation and environmental protection are achieved.

Example three:

in this embodiment, as shown in fig. 4, a vertical frame column 6 is shown, and includes an upper header 10, vertical heated tubes 11 and a lower header 12, where the upper header 10 and the lower header 12 are coaxially and symmetrically arranged, a plurality of vertical heated tubes 11 are uniformly arranged and communicate the upper header 10 and the lower header 12, and the vertical heated tubes 11 are annularly arranged to fully contact with flames, so as to improve heat exchange efficiency.

Further, last header 10 is last to be provided with at least one soda collection point, and soda collection point is responsible for the inlet end intercommunication of 9 through communicating pipe 5 and steam, can improve saturated steam collection efficiency, prevents that vertical frame post 6 from being heated unevenly or when equipment inclines, and saturated steam collection effect is not good.

Example four:

in this embodiment, as shown in fig. 5, a vertical frame column 6 is shown, wherein the diameter of the upper header 10 is smaller than the diameter of the lower header 12, and the plurality of vertical heated tubes 11 between the upper header 10 and the lower header 12 are in a gathering structure inclined inward from bottom to top, so that when the vertical heated tubes 11 are in contact with flames, they are further in full contact with the flames, and are heated along the shape of the flames, thereby fully utilizing the heat of the flames and improving the heating efficiency.

Example five:

in the embodiment shown in fig. 5, the vertical frame column 6 has a cross-net structure of the plurality of vertical heated tubes 11 between the upper header 10 and the lower header 12, so that the vertical heated tubes 11 are in contact with the flame and further in full contact with the flame.

Further, the upper header 10 is provided with a temperature display for grasping whether the steam saturation temperature is reached or not to prevent overheating.

Furthermore, the water outlet ends of the circulating water pump 14 and the pressurizing water replenishing pump 15 are provided with one-way check valves 17, so that the water pressure of the system is increased after the pump is prevented from being out of order, and the safety of the steam generator is ensured.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.