阅读说明：本技术 一种适用于过热蒸汽的蒸汽喷射器 (Steam ejector suitable for superheated steam ) 是由 戴仁佑 戴拓 于 2020-03-17 设计创作，主要内容包括：本发明公开了一种适用于过热蒸汽的蒸汽喷射器,所述适用于过热蒸汽的蒸汽喷射器,包括筒体,所述筒体的上端口通过上盖封闭,所述筒体的下端口通过底板封闭,所述蒸汽喷射器还包括第一冷水管和第二冷水管,所述第一冷水管连接于所述上盖并通向所述筒体的内部,所述第二冷水管连接于所述筒体的一侧,所述筒体的另一侧具有热水出口,所述筒体的底部具有喷射孔板,所述喷射孔板与所述底板之间形成蒸汽喷射腔,所述蒸汽喷射腔通过连接于所述筒体的一侧的蒸汽进入管与蒸汽源连通。该适用于过热蒸汽的蒸汽喷射器旨在解决国内外现有技术中的过热蒸汽直接加热管道内的冷水时,出现的“严重振动、水击、不能正常开机运行”的技术问题。(The invention discloses a steam ejector suitable for superheated steam, which comprises a cylinder body, wherein the upper end opening of the cylinder body is sealed by an upper cover, the lower end opening of the cylinder body is sealed by a bottom plate, the steam ejector further comprises a first cold water pipe and a second cold water pipe, the first cold water pipe is connected with the upper cover and communicated with the inside of the cylinder body, the second cold water pipe is connected with one side of the cylinder body, the other side of the cylinder body is provided with a hot water outlet, the bottom of the cylinder body is provided with an injection pore plate, a steam injection cavity is formed between the injection pore plate and the bottom plate, and the steam injection cavity is communicated with a steam source through a steam inlet pipe connected with one side of the cylinder body. The steam ejector suitable for the superheated steam aims to solve the technical problems of serious vibration, water hammer and incapability of normal starting operation when the superheated steam directly heats cold water in a pipeline in the prior art at home and abroad.)

1. The steam ejector suitable for the superheated steam comprises a barrel body, wherein an upper port of the barrel body is sealed by an upper cover, a lower port of the barrel body is sealed by a bottom plate, the steam ejector further comprises a first cold water pipe and a second cold water pipe, the first cold water pipe is connected to the upper cover and leads to the inside of the barrel body, the second cold water pipe is connected to one side of the barrel body, a hot water outlet is formed in the other side of the barrel body, a jet pore plate is arranged at the bottom of the barrel body, a steam jet cavity is formed between the jet pore plate and the bottom plate and is communicated with a steam source through a steam inlet pipe connected to one side of the barrel body, a plurality of steam jet through holes are formed in the jet pore plate, and the central axis of the steam jet through holes is arranged in the vertical direction, the upper surface of the injection pore plate is connected with a liquid baffle plate, the upper end surface of the liquid baffle plate is higher than the hot water outlet, and the liquid baffle plate is adjacent to the hot water outlet.

2. The steam ejector for superheated steam of claim 1, wherein the first and second cold water pipes share a common inlet.

3. The steam injector for superheated steam of claim 2, wherein the first cold water pipe terminates within the barrel and a uniform cold water injector is connected thereto.

4. A steam injector as claimed in claim 3 adapted for superheated steam, wherein the uniform cold water injector comprises a plurality of uniformly distributed spray orifices distributed obliquely downwards.

5. The steam injector for superheated steam of claim 4, wherein the upper cover is provided with an automatic air exhaust valve.

6. The steam injector as claimed in any one of claims 1 to 5, wherein the upper part of the barrel is conical and gradually increases from top to bottom, and the lower part is cylindrical.

7. The steam ejector for superheated steam of any one of claims 1 to 5, wherein the first and second cold water pipes each have a bent pipe section.

Technical Field

The invention relates to the technical field of steam ejector equipment, in particular to a steam ejector suitable for superheated steam.

Background

Up to now, in the prior art at home and abroad, superheated steam, especially steam with severe superheat (superheat degree more than 20 ℃) is directly added into cold water in a pipeline to directly heat water, so that the products have various defects, such as severe vibration and even water hammer, which are extremely unsafe, seriously affect the health and safety of field workers, seriously affect the normal production and safe production of enterprises, and even cannot be started to operate at all.

Disclosure of Invention

Technical problem to be solved

Based on the above, the invention provides a steam ejector suitable for superheated steam, which aims to solve the technical problems of serious vibration, water hammer and incapability of normal starting operation when the superheated steam directly heats cold water in a pipeline in the prior art at home and abroad.

(II) technical scheme

In order to solve the technical problems, the invention provides a steam ejector suitable for superheated steam, which comprises a cylinder body, wherein the upper end opening of the cylinder body is sealed by an upper cover, the lower end opening of the cylinder body is sealed by a bottom plate, the steam ejector further comprises a first cold water pipe and a second cold water pipe, the first cold water pipe is connected with the upper cover and led to the inside of the cylinder body, the second cold water pipe is connected with one side of the cylinder body, the other side of the cylinder body is provided with a hot water outlet, the bottom of the cylinder body is provided with an injection pore plate, a steam injection cavity is formed between the injection pore plate and the bottom plate, the steam injection cavity is communicated with a steam source through a steam inlet pipe connected with one side of the cylinder body, the injection pore plate is provided with a plurality of steam injection through holes, and the central axes of the steam injection through holes are arranged in a vertical direction, the upper surface of the injection pore plate is connected with a liquid baffle plate, the upper end surface of the liquid baffle plate is higher than the hot water outlet, and the liquid baffle plate is adjacent to the hot water outlet.

Preferably, the first and second cold water pipes share a common inlet.

Preferably, the end of the first cold water pipe is located in the cylinder and connected with a uniform cold water injector.

Preferably, the uniform cold water injector includes a plurality of uniformly distributed spray holes distributed obliquely downward.

Preferably, an automatic air exhaust valve is arranged on the upper cover.

Preferably, the upper part of the cylinder is conical and gradually enlarged from top to bottom, and the lower part of the cylinder is cylindrical.

Preferably, the first and second cold water pipes each have a bent pipe section.

(III) advantageous effects

Compared with the prior art at home and abroad, the invention has the beneficial effects that:

as mentioned in the foregoing, a steam spraying cavity is formed between the spraying orifice plate and the bottom plate, the spraying orifice plate is provided with a plurality of steam spraying through holes, the central axes of the steam spraying through holes are arranged in the vertical direction, cold water in the pipeline is directly heated and warmed, when the steam spraying device works specifically, superheated steam is sprayed upwards, cold water which can come out through the second cold water pipe is condensed into saturated steam, then the saturated steam is further condensed with cold water which is sprayed out through the first cold water pipe, and finally, the condensed water passes through the top of the water baffle plate and flows out from a hot water outlet, so that the problems of no water hammer, no vibration, low noise or even no noise are thoroughly solved, and the steam spraying device suitable for the superheated steam can completely and safely operate.

Other advantageous effects of the present invention will be described in the following detailed description.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a front view of a steam injector suitable for superheated steam in accordance with an embodiment of the present invention.

Description of reference numerals:

1. the steam spraying device comprises a cylinder body, 2, an upper cover, 3, a bottom plate, 4, a first cold water pipe, 5, a second cold water pipe, 6, a hot water outlet, 7, a spraying pore plate, 8, a steam spraying cavity, 9, a steam spraying through hole, 10, a liquid baffle plate, 11, a uniform cold water sprayer, 12, an automatic air exhaust valve, 13 and a steam inlet pipe.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Referring to fig. 1, the present invention provides a steam injector suitable for superheated steam, wherein the steam injector suitable for superheated steam comprises a cylinder 1, an upper port of the cylinder 1 is sealed by an upper cover 2, a lower port of the cylinder 1 is sealed by a bottom plate 3, the steam injector further comprises a first cold water pipe 4 and a second cold water pipe 5, the first cold water pipe 4 is connected to the upper cover 2 and led to the inside of the cylinder 1, the second cold water pipe 5 is connected to one side of the cylinder 1, the other side of the cylinder 1 is provided with a hot water outlet 6, the bottom of the cylinder 1 is provided with an injection orifice plate 7, a steam injection cavity 8 is formed between the injection orifice plate 7 and the bottom plate 3, the steam injection cavity 8 is communicated with a steam source through a steam inlet pipe 13 connected to one side of the cylinder 1, the injection orifice plate 7 is provided with a plurality of steam injection through holes 9, and central axes of the steam, a liquid baffle 10 is connected to the upper surface of the injection orifice 7, the upper end surface of the liquid baffle 10 is higher than the hot water outlet 6 and the liquid baffle 10 is adjacent to the hot water outlet 6. Wherein, it sprays the chamber 8 to form the steam between orifice plate 7 and the bottom plate 3, it sprays through-hole 9 to have a plurality of steam on the orifice plate 7, the central axis that steam sprays through-hole 9 is vertical direction and arranges, directly heat the rising temperature to the cold water in the pipeline, when concrete work, superheated steam upwards spouts the cold water condensation that can come out through second cold water pipe 5 earlier and becomes saturated steam, the cold water further condensation that upwards comes out with first cold water pipe 4 again, the comdenstion water is finally passed and is flowed out from hot water outlet 6 from the breakwater top, just so thoroughly realized "do not have the water hammer, do not vibrate, the problem of little noise or even noiselessness", this steam ejector who is applicable to superheated steam can the complete safe operation.

According to an embodiment of the present invention, the first cold water pipe 4 and the second cold water pipe 5 share one inlet. Of course, the present invention is not limited thereto, and even a solution that does not share one inlet would fall within the scope of the present invention.

According to a preferred embodiment of the present invention, the end of the first cold water pipe 4 is located inside the bowl 1 and is connected with a uniform cold water injector 11. Further, the uniform cold water injector 11 includes a plurality of uniformly distributed spray holes obliquely downward, or the spray holes may be distributed horizontally or vertically downward.

Further, an automatic air exhaust valve 12 is provided on the upper cover 2. Therefore, the separated air is automatically discharged in the heating process of the cold water, and the stable operation of the system is further facilitated.

According to the embodiment of the present invention, the upper portion of the cylinder 1 is conical and gradually enlarged from top to bottom, and the lower portion is cylindrical. Of course, it is also possible to appropriately change the shape design of the cylinder 1 as necessary. The first cold water pipe 4 and the second cold water pipe 5 each have a bent pipe section, or other means of pipe sections.

The more specific working process and principle of the steam ejector suitable for superheated steam provided by the invention are introduced as follows:

(1) cold water enters the first cold water pipe 4 and the second cold water pipe 5 through a common inlet respectively, wherein the cold water entering the second cold water pipe 5 enters the cylinder 1 from the middle lower part of the cylinder 1, superheated steam sprayed out from the steam spraying through holes 9 is subjected to first rapid condensation to be changed into saturated steam, in addition, the cold water of the first cold water pipe 4 enters the cylinder 1 from the top of the cylinder 1 downwards through the uniform cold water sprayer 11 (uniformly diffused and even atomized through the uniform cold water sprayer 11), the saturated steam is subjected to second rapid condensation to be changed into hot water, the hot water finally passes through the top of the water baffle plate and flows out from the hot water outlet 6, and the purpose of directly heating the water by the superheated steam is achieved. In the steam direct heating equipment, a mode of feeding water from top to bottom is adopted, which is the first creation.

(2) Superheated steam enters the steam spraying cavity 8 from the steam inlet pipe 13 and then is sprayed out through the steam spraying through holes 9, and the superheated steam becomes saturated steam after a certain distance and time due to the fact that the superheated steam is sprayed upwards through cold water flowing out of the second cold water pipe 5. In the pipeline type direct steam heating equipment, steam is sprayed upwards, which is the first initiative.

(3) Whether superheated steam or saturated steam has an inherent upward direction, first, superheated steam is jetted vertically upward, so that it becomes saturated steam, and also continues to move upward by inertia, and then rapidly condenses into hot water together with cold water jetted downward from the uniform cold water injector 11.

(4) Because the superheated steam is changed into saturated steam firstly, and then the saturated steam is condensed with water, the problems of water hammer, vibration and noise of cold water in the superheated steam heating pipeline are thoroughly solved. The invention adopts the superheated steam to directly heat water, thereby ensuring successful application.

(5) The water baffle is arranged, so that the superheated steam has enough distance and time to be condensed into saturated steam, and simultaneously, the water baffle can prevent the superheated steam including the saturated steam from directly flowing out of the hot water outlet 6 due to the flowing of water.

(6) During the process of condensing the superheated steam, saturated steam and water, air and oxygen are released, so that the automatic exhaust valve 12 is arranged to exhaust the gas out of the cylinder 1, thereby being beneficial to the normal operation of the system.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.