Water vapor spraying device and high-temperature furnace assembly

Abstract

The utility model belongs to the field of water vapor injection, and discloses a water vapor injection device and a high-temperature furnace assembly, the water vapor injection device comprises a shell, an injector, a water storage device and a perforated plate; the ejector is arranged in the shell, a mounting hole is formed in the middle of the ejector, and a plurality of ejection holes surrounding the mounting hole are formed in the ejector; the water storage device is arranged in the mounting hole; the water storage device is arranged in the shell, the perforated plate is arranged in the shell and installed above the water storage device, a plurality of through holes are formed in the perforated plate, the through holes are communicated with the water storage device, and a distance is formed between the top surface of the perforated plate and the inner top surface of the shell. The water vapor is sprayed to the high-temperature furnace for cooling, so that the furnace body of the high-temperature furnace can be prevented from being corroded, and the airflow environment in the furnace is prevented from being disturbed.

Description

TECHNICAL FIELD

[0001] The utility model relates to water vapor injection technical field especially water vapor injection device and high temperature furnace assembly. BACKGROUND

[0002] Water vapor injection device mainly provides steam, can be used in participating in chemical reaction, high temperature furnace temperature reduction and high school laboratory research etc. The machine working in high temperature environment such as coal gas furnace or incinerator usually encounters that heat concentration exceeds the range that machine itself can bear, leads to machine life reduction, in prior art, usually directly sprays cooling liquid (water), water-cooled wall temperature reduction etc. Directly spraying liquid water can easily cause corrosion to furnace body, reduces the service life of furnace body, and will also disturb the airflow environment in the furnace, influence normal work in the furnace. SUMMARY

[0003] The purpose of the present application is to provide a kind of water vapor injection device and high temperature furnace assembly, by injecting water vapor to high temperature furnace and cooling, can avoid the corrosion to the furnace body of high temperature furnace, and avoid disturbing the airflow environment in the furnace.

[0004] The technical scheme provided by the present application is as follows:

[0005] In one aspect, a water vapor injection device is provided, comprising:

[0006] a housing;

[0007] an injector disposed in the housing, the injector having a mounting hole in the middle portion, and a plurality of injection holes surrounding the mounting hole on the injector;

[0008] a water reservoir disposed in the mounting hole;

[0009] a perforated plate disposed in the housing and mounted above the water reservoir, the perforated plate having a plurality of through holes, the through holes being in communication with the water reservoir, and the top surface of the perforated plate having a spacing from the inner top surface of the housing.

[0010] In some embodiments, the water reservoir includes a water storage body and a water inlet pipe, the water storage body is disposed in the mounting hole, one end of the water inlet pipe is in communication with the water storage body, and the other end of the water inlet pipe extends out of the housing.

[0011] In some embodiments, the water storage body includes a water storage bottom plate and a water storage side plate, the water storage bottom plate and the water storage side plate are connected to form a water storage chamber, and the perforated plate is mounted on the water storage chamber.

[0012] The water storage side plate is provided with a water inlet cavity, the water inlet pipe is in communication with the water inlet cavity, and one end of the water inlet cavity close to the water storage bottom plate is in communication with the water storage chamber.

[0013] In some embodiments, the water inlet cavity is annular and arranged along the circumference of the water storage side plate.

[0014] The water storage side plate is provided with an annular opening arranged along the circumference of the water storage side plate at the inner side wall of one end of the water storage bottom plate, and the annular opening communicates the water inlet cavity with the water storage chamber.

[0015] In some embodiments, the bottom surface of the water storage device is flush with the ejector, the top surface of the water storage device protrudes from the ejector, and the porous plate is mounted on the top surface of the water storage device.

[0016] In some embodiments, the bottom surface of the shell is open.

[0017] The bottom surface of the shell extends to the outside of the bottom surface of the ejector along the height direction of the shell, or the bottom surface of the shell is flush with the ejector.

[0018] In some embodiments, the spray hole is a conical hole or a fan-shaped hole, and the end of the spray hole with a small bottom area is arranged towards the top surface of the shell, and the end of the spray hole with a large bottom area is arranged towards the bottom surface of the shell.

[0019] In some embodiments, the materials of the ejector and the porous plate include ceramic, and the materials of the shell and the water storage device include stainless steel.

[0020] In some embodiments, a heater is further included, and the heater is arranged in the shell to heat the water storage device.

[0021] In another aspect, a high-temperature furnace assembly is also provided, which includes a high-temperature furnace and the water vapor ejecting device of any of the above embodiments, and the shell is connected with the high-temperature furnace.

[0022] The technical effect of the present application is that the water vapor ejecting device of the present application can be installed on the high-temperature furnace, liquid water is introduced into the water storage device, the water storage device heats the liquid water to form high-temperature water vapor by absorbing heat from the high-temperature furnace or by absorbing heat from the heater, the high-temperature water vapor forms a uniform pressure steam flow through the porous plate, collides with the inner top surface of the shell to form reverse water vapor, and then the water vapor is sprayed downward to the high-temperature area of the high-temperature furnace through the ejector, thereby achieving uniform cooling of the high-temperature furnace or adding water vapor to participate in chemical reactions in the high-temperature furnace. By spraying water vapor to the high-temperature furnace for cooling, the present application can avoid corrosion of the furnace body of the high-temperature furnace and disturbance of the airflow environment in the furnace. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0024] Figure 1is a structural schematic diagram of a water vapor spraying device provided by an embodiment of the present application;

[0025] Figure 2 is a structural schematic diagram of a sprayer, a water reservoir and a multi-hole plate provided by an embodiment of the present application;

[0026] Figure 3 is a structural schematic diagram of a sprayer provided by an embodiment of the present application;

[0027] Figure 4 is a structural schematic diagram of a multi-hole plate provided by an embodiment of the present application;

[0028] Figure 5 is a structural schematic diagram of a sprayer provided by an embodiment of the present application.

[0029] Explanation of reference signs:

[0030] 100, housing; 200, sprayer; 210, mounting hole; 300, water reservoir; 310, water inlet pipe; 320, water storage bottom plate; 330, water storage side plate; 331, water inlet cavity; 332, annular opening; 340, water storage chamber; 400, multi-hole plate; 410, through hole; 500, water vapor containing cavity. DETAILED DESCRIPTION

[0031] In the following description, specific details are set forth in order to provide a thorough understanding of the present application. However, persons of ordinary skill in the art will readily recognize that the application can be practiced without these specific details, and / or with other methods, components, materials, etc. In other instances, well-known structures, devices, circuits, and methods have not been described in detail in order to avoid obscuring the application.

[0032] In order to more clearly illustrate the technical solutions of the application or prior art, the specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0033] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0034] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.

[0037] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.

[0038] The steam injection device of this application can be installed on a high-temperature furnace or reaction furnace. The steam injection device injects steam into the high-temperature furnace, which not only cools the furnace to protect it from burn-out due to excessive temperature, but also controls the reaction temperature and increases the amount of reactants, allowing the steam to participate in the chemical reaction within the furnace. This application, by injecting steam into the high-temperature furnace for cooling, avoids corrosion of the furnace body and prevents disruption of the internal airflow environment.

[0039] like Figures 1 to 4 As shown, the steam injection device includes a housing 100, an injector 200, a water reservoir 300, and a perforated plate 400. The housing 100 can be used to connect to a high-temperature furnace. The injector 200 is disposed inside the housing 100, and a mounting hole 210 is provided in the middle of the injector 200. The injector 200 has multiple injection holes surrounding the mounting hole 210. The water reservoir 300 is disposed inside the mounting hole 210. The perforated plate 400 is disposed inside the housing 100 and installed above the water reservoir 300. The perforated plate 400 has multiple through holes 410, which communicate with the water reservoir 300. The top surface of the perforated plate 400 is spaced from the inner top surface of the housing 100.

[0040] Specifically, the inside of the shell 100 is a hollow structure to form a cavity, the sprayer 200, the water reservoir 300 and the multi-hole plate 400 are all arranged in the cavity of the shell 100, the shell 100 can be a cylindrical structure, a cuboid structure or an ellipsoid structure, etc., the shape of the shell 100 is not specifically limited in the embodiment, as long as the installation of the sprayer 200, the water reservoir 300 and the multi-hole plate 400 can be realized. In the embodiment, the top of the shell 100 is closed and the bottom is open, the bottom of the shell 100 can be installed on the high-temperature furnace, so that the water vapor formed in the shell can be sprayed to the high-temperature furnace. In the embodiment, the shell 100 is made of a high-temperature-resistant metal material, for example, the shell 100 is made of stainless steel to achieve the high-temperature-resistant property.

[0041] The sprayer 200 is a ring structure, for example, it can be a circular ring or a rectangular ring, etc., the outer wall of the sprayer 200 is fixedly installed with the inner wall of the shell 100, the inner ring of the sprayer 200 forms a mounting hole 210 for mounting the water reservoir 300, a plurality of spray holes are arranged on the sprayer 200, the plurality of spray holes are uniformly or non-uniformly arranged on the sprayer 200, preferably, the plurality of spray holes are uniformly arranged on the sprayer 200, so that the water vapor can be uniformly sprayed from the sprayer 200 to the high-temperature area of the high-temperature furnace. In the embodiment, the sprayer 200 can be made of ceramic material to achieve the property of being convenient to make multiple holes on the sprayer 200 and achieve the high-temperature-resistant property, of course, the sprayer 200 can also be made of metal material such as stainless steel.

[0042] The water reservoir 300 is installed in the mounting hole 210 of the sprayer 200, liquid water can be introduced into the water reservoir 300, and the water reservoir 300 is heated to form water vapor in the liquid water in the water reservoir 300. In the embodiment, there are at least two ways to heat the water reservoir 300, one is to arrange an independent heater in the shell 100, the heater is heated by an external heat source to heat the water reservoir 300 to form water vapor in the liquid water in the water reservoir 300; the other is to arrange the water vapor spraying device on the high-temperature furnace, the high-temperature furnace transmits heat to the water reservoir 300 to heat the water reservoir 300 and form water vapor in the liquid water in the water reservoir 300. By heating the water reservoir 300 by the high-temperature furnace, not only the high-temperature furnace can be further cooled by heat absorption to protect the high-temperature area components of the high-temperature furnace from being burned by high temperature, but also the heat of the high-temperature furnace can be fully utilized to avoid heat waste. In the embodiment, the water reservoir 300 can be made of metal material, for example, stainless steel, to achieve the high-temperature-resistant property.

[0043] The porous plate 400 is arranged on the water reservoir 300, and a plurality of through holes 410 are arranged on the porous plate 400 and communicate with the water reservoir 300. Water vapor generated in the water reservoir 300 can be output to the upper side of the porous plate 400 through the through holes 410. The plurality of through holes 410 are arranged uniformly or non-uniformly on the porous plate 400. Preferably, the plurality of through holes 410 are arranged uniformly on the porous plate 400, so that the water vapor generated in the water reservoir 300 can be uniformly output to the upper side of the porous plate 400. The diameter of the through holes 410 can be set according to the required resistance. For example, the diameter of the through holes 410 can be 0.5 mm to 1 mm, so that the water vapor can uniformly pass through the through holes 410 on the porous plate 400. The top surface of the porous plate 400 and the inner top surface of the shell 100 have a spacing to form a water vapor containing cavity 500. The water vapor generated by the water reservoir 300 is output upward through the through holes 410 to the water vapor containing cavity 500, and then reverses and is sprayed downward by the sprayer 200. The height of the water vapor containing cavity 500 can be designed according to the overall size of the water vapor spraying device. The height of the water vapor containing cavity 500 should not be too high, so as to avoid that the water vapor sprayed by the porous plate 400 cannot hit the inner top surface of the shell 100 to form reverse water vapor, and at the same time, avoid wasting space and causing the overall volume of the water vapor spraying device to be too large. In the embodiment, the porous plate 400 is arranged on the water reservoir 300. The porous plate 400 can compress the water vapor, so that the water vapor sprayed into the water vapor containing cavity 500 has a certain pressure. In addition, the porous plate 400 can also limit the water vapor spraying flow and uniformly output to the water vapor containing cavity 500. In the embodiment, the porous plate 400 can be made of ceramic material, so as to have the characteristics of being convenient to make holes on the porous plate 400 and being resistant to high temperature. Of course, the porous plate 400 can also be made of metal materials such as stainless steel, or the porous plate 400 can be replaced by a porous medium.

[0044] The water vapor spraying device of the embodiment can be installed on a high-temperature furnace. Liquid water is introduced into the water reservoir 300. The water reservoir 300 heats the liquid water to form high-temperature water vapor by absorbing heat of the high-temperature furnace or by absorbing heat of a heater. The high-temperature water vapor forms a uniform pressure steam flow through the porous plate 400, hits the inner top surface of the shell 100 to form reverse water vapor, and then sprays downward to the high-temperature area of the high-temperature furnace through the sprayer 200, so as to uniformly cool the high-temperature furnace or add water vapor to participate in chemical reactions in the high-temperature furnace.

[0045] In some embodiments, as Figure 5As shown, the water reservoir 300 includes a water storage body and a water inlet pipe 310, the water storage body is arranged in the mounting hole 210, one end of the water inlet pipe 310 is communicated with the water storage body, and the other end of the water inlet pipe 310 extends out of the shell 100. A through hole can be arranged on the side wall of the shell 100, one end of the water inlet pipe 310 is connected with the water storage body, the other end of the water inlet pipe 310 penetrates through the through hole on the shell 100 and extends out of the shell 100, so as to continuously introduce liquid water into the water storage body. A sealing ring or sealant is arranged at the connection between the water inlet pipe 310 and the shell 100 to prevent water vapor leakage.

[0046] Further, as shown in Figure 5 The water storage body includes a water storage bottom plate 320 and a water storage side plate 330, the water storage bottom plate 320 is connected with the water storage side plate 330 to form a water storage chamber 340, and the porous plate 400 is installed on the water storage chamber 340; the water storage side plate 330 is provided with a water inlet cavity 331, the water inlet pipe 310 is communicated with the water inlet cavity 331, and the end of the water inlet cavity 331 close to the water storage bottom plate 320 is communicated with the water storage chamber 340. The bottom of the water storage bottom plate 320 can be provided with a heater, or the water storage bottom plate 320 is in contact with the high-temperature furnace to absorb heat through the water storage bottom plate 320 and heat the liquid water in the water storage chamber 340. The water inlet cavity 331 is arranged in the water storage side plate 330, the liquid water in the water inlet pipe 310 first enters the water inlet cavity 331, the bottom side of the water inlet cavity 331 is communicated with the water storage chamber 340, and the liquid water in the water inlet cavity 331 enters the water storage chamber 340 from the bottom surface of the water storage chamber 340, so as to disperse the liquid water heating surface and improve the heat exchange efficiency. By storing liquid water in the water storage chamber 340, the heat exchange time can be increased, the water reservoir 300 can absorb more heat from the high-temperature furnace, so as to better achieve the purpose of temperature reduction and improving the generation source of water vapor.

[0047] The water inlet cavity 331 is annular and arranged along the circumference of the water storage side plate 330, and penetrates to the bottom of the water storage side plate 330; the inner side wall of the end of the water storage side plate 330 close to the water storage bottom plate 320 is provided with an annular opening 332 arranged along the circumference of the water storage side plate 330, the annular opening 332 is communicated with the water inlet cavity 331 and the water storage chamber 340, and the liquid water in the water inlet cavity 331 can enter the water storage chamber 340 from the annular opening 332 of the inner side wall of the bottom of the water storage side plate 330, that is, the liquid water enters the water storage chamber 340 from the bottom surface of the water storage chamber 340, so that the liquid water is in full contact with the water storage bottom plate 320, so as to improve the heat exchange efficiency.

[0048] In some embodiments, as shown in Figure 1 The bottom surface of the water reservoir 300 is flush with the ejector 200, the top surface of the water reservoir 300 extends out of the ejector 200, and the porous plate 400 is installed on the top surface of the water reservoir 300. The bottom surface of the water reservoir 300 is flush with the ejector 200, which facilitates the bottom surface of the water reservoir 300 to absorb heat from the high-temperature furnace, and makes the generated water vapor flow more conveniently enter the high-temperature furnace.

[0049] Further, the bottom surface of the shell 100 is open; the bottom surface of the shell 100 extends to the bottom surface of the injector 200 along the height direction of the shell 100, or the bottom surface of the shell 100 is flush with the injector 200. When the bottom surface of the shell 100 extends beyond the injector 200, the inner side wall of the lower end of the shell 100 can be provided with a threaded structure, and the lower end of the shell 100 is threadedly connected with the high-temperature furnace, so that the high-temperature furnace can extend into the shell 100 to install the water vapor injection device on the high-temperature furnace. When the bottom surface of the shell 100 is flush with the injector 200, the outer side wall of the shell 100 can be provided with a thread, and the bottom of the shell 100 extends into the high-temperature furnace, so that the shell 100 and the high-temperature furnace can also be connected.

[0050] In some embodiments, the injection hole is a conical hole or a fan-shaped hole, and the end with a small bottom area of the injection hole is arranged towards the top surface of the shell 100, and the end with a large bottom area of the injection hole is arranged towards the bottom surface of the shell 100, that is, the inlet size of the injection hole is small and the outlet size is large, the inlet of the injection hole is arranged towards the water vapor containing cavity 500, and the outlet of the injection hole is arranged towards the high-temperature furnace. The inlet size of the injection hole can be 0.1mm-0.3mm, so as to increase the resistance, pressurize the water vapor, and make the water vapor uniformly enter each injection hole, so as to improve the uniformity of injection. The injection hole is conical or fan-shaped, so that the water vapor injected has a certain diffusion angle, and by adjusting the shape and size of the outlet of the injection hole, the diffusion angle and flow distribution of the injection flow can be controlled.

[0051] The application also provides an embodiment of a high-temperature furnace assembly, which comprises a high-temperature furnace and the water vapor injection device of any one of the above-mentioned embodiments, and the shell 100 is connected with the high-temperature furnace, and the shell 100 and the furnace body of the high-temperature furnace can be connected by threads, buckles or the like. Further, the water storage device 300 absorbs the heat of the high-temperature furnace to heat the liquid water in the water storage device to generate water vapor.

[0052] In use, the water vapor injection device is installed at the heat concentration position of the high-temperature furnace, and in the running process of the high-temperature furnace, a certain flow rate of liquid water is injected into the water storage device 300, the liquid water is injected into the water storage chamber 340 of the water storage device 300 through the annular opening 332 on the side wall of the water inlet cavity 331 in an annular manner, the high-temperature furnace transmits heat to the water storage bottom plate 320 of the water storage device 300 to heat the liquid water in the water storage chamber 340 to form high-temperature water vapor, and the high-temperature water vapor forms a uniform pressure steam flow through the porous plate 400 and impacts the inner top surface of the shell 100 to form reverse water vapor, which is uniformly injected to the high-temperature zone of the high-temperature furnace through the annular injector 200.

[0053] In use, the water vapor injection device injects liquid water through the water inlet pipe 310, absorbs heat through the water storage bottom plate 320 to heat the liquid water in the water storage chamber 340, forms water vapor, absorbs the heat of the high temperature area of the high temperature furnace, and outputs water vapor. The output water vapor can continue to play a role in the high temperature furnace or reaction furnace, improving the utilization of liquid water and heat. The water storage device 300 is provided with a water inlet cavity 331 structure, so that the added liquid water flows from the bottom layer to the upper layer into the water storage chamber 340 first, increasing the heat absorption efficiency; the addition of the porous plate 400 helps to generate pressure, and the water vapor flow with a certain pressure passes through the annular injector 200 to achieve the purpose of uniform spraying.

[0054] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0055] It should be noted that the above embodiments can be freely combined as needed. The above is only the preferred embodiment of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A water vapor jet device characterized by comprising: The water vapor injection device comprises: a housing; a sprayer arranged in the housing, the sprayer having a mounting hole in the middle, and a plurality of spray holes arranged around the mounting hole; a water reservoir arranged in the mounting hole; a porous plate arranged in the housing and mounted above the water reservoir, the porous plate having a plurality of through holes, the through holes being in communication with the water reservoir, and the top surface of the porous plate being spaced apart from the inner top surface of the housing.

2. The water vapor injection device according to claim 1, wherein the water reservoir comprises a water storage body arranged in the mounting hole and a water inlet pipe, one end of the water inlet pipe being in communication with the water storage body and the other end extending out of the housing.

3. The water vapor injection device according to claim 2, wherein the water storage body comprises a water storage bottom plate and a water storage side plate, the water storage bottom plate and the water storage side plate being connected to form a water storage chamber, and the porous plate being mounted on the water storage chamber; the water storage side plate is provided with a water inlet cavity, the water inlet pipe is in communication with the water inlet cavity, and one end of the water inlet cavity close to the water storage bottom plate is in communication with the water storage chamber.

4. The water vapor injection device according to claim 3, wherein the water inlet cavity is annular and arranged along the circumference of the water storage side plate; the inner side wall of one end of the water storage side plate close to the water storage bottom plate is provided with an annular opening arranged along the circumference of the water storage side plate, and the annular opening is in communication with the water inlet cavity and the water storage chamber.

5. The water vapor injection device according to any one of claims 1-4, wherein the bottom surface of the water reservoir is flush with the sprayer, the top surface of the water reservoir extends out of the sprayer, and the porous plate is mounted on the top surface of the water reservoir.

6. The water vapor injection device according to claim 5, wherein the bottom surface of the housing is open; the bottom surface of the housing extends out of the bottom surface of the sprayer along the height direction of the housing; or the bottom surface of the housing is flush with the sprayer.

7. The water vapor injection device according to any one of claims 1-4, wherein the spray holes are conical holes or fan-shaped holes, one end of the spray holes with a small bottom area is arranged towards the top surface of the housing, and the other end of the spray holes with a large bottom area is arranged towards the bottom surface of the housing.

8. The water vapor injection device according to any one of claims 1-4, wherein the materials of the sprayer and the porous plate comprise ceramic, and the materials of the housing and the water reservoir comprise stainless steel.

9. The water vapor injection device according to any one of claims 1-4, further comprising a heater arranged in the housing for heating the water reservoir. The water vapor injection device according to any one of claims 1-9 is arranged in connection with a high-temperature furnace.

10. A high temperature furnace assembly characterized by, ​

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