阅读说明：本技术 锅炉系统 (Boiler system ) 是由 戴新河 刘鹏飞 郭霞 梁燕 马晓峰 张玉敏 王志远 于文芳 刘欢 郭进周 林莉莉 于 2019-01-16 设计创作，主要内容包括：本发明提供了一种锅炉系统,包括：锅炉；用于容纳污水的分离器；储水器；喷射器,喷射器与分离器连通；分配器；低压蒸汽管线,低压蒸汽管线的一部分穿设在分离器内,且低压蒸汽管线的两端分别与喷射器和储水器连通；加热管线,加热管线的一部分穿设在锅炉内,且加热管线的两端分别与储水器和分配器连通；高压蒸汽管线,高压蒸汽管线的两端分别与分配器和喷射器连通,储水器中的清水经过加热管线、分配器、高压蒸汽管线和喷射器后,将分离器内的蒸汽抽离分离器,造成分离器内真空,蒸汽在喷射器内混合,混合后的蒸汽经低压蒸汽管线回流至储水器内。本发明解决了现有技术中的利用稠油净化污水来生产蒸汽时锅炉容易产生盐析与结垢的问题。(The present invention provides a boiler system comprising: a boiler; a separator for containing the contaminated water; a water reservoir; an ejector in communication with the separator; a dispenser; a low pressure steam pipeline, wherein one part of the low pressure steam pipeline is arranged in the separator in a penetrating way, and two ends of the low pressure steam pipeline are respectively communicated with the ejector and the water storage device; a part of the heating pipeline is arranged in the boiler in a penetrating way, and two ends of the heating pipeline are respectively communicated with the water receiver and the distributor; the two ends of the high-pressure steam pipeline are respectively communicated with the distributor and the ejector, clean water in the water storage device passes through the heating pipeline, the distributor, the high-pressure steam pipeline and the ejector, then the steam in the separator is pumped out of the separator, vacuum in the separator is caused, the steam is mixed in the ejector, and the mixed steam flows back to the water storage device through the low-pressure steam pipeline. The invention solves the problem that the boiler is easy to salt and scale when thick oil is used for purifying sewage to produce steam in the prior art.)

1. A boiler system, comprising:

a boiler (10);

a separator (20) for containing the contaminated water;

a water reservoir (30);

an ejector (40), the ejector (40) being in communication with the separator (20);

a dispenser (50);

a low pressure steam line (60), a portion of the low pressure steam line (60) being perforated in the separator (20), and both ends of the low pressure steam line (60) being respectively communicated with the ejector (40) and the water reservoir (30);

a heating pipeline (70), wherein a part of the heating pipeline (70) is arranged in the boiler (10) in a penetrating way, two ends of the heating pipeline (70) are respectively communicated with the water storage device (30) and the distributor (50), and clean water in the water storage device (30) enters the distributor (50) after being heated into steam through the heating pipeline (70);

the two ends of the high-pressure steam pipeline (80) are respectively communicated with the distributor (50) and the ejector (40), after the clean water in the water storage device (30) passes through the heating pipeline (70), the distributor (50), the high-pressure steam pipeline (80) and the ejector (40), the steam in the separator (20) is pumped out of the separator (20) to cause vacuum in the separator (20), the steam is mixed in the ejector (40), and the mixed steam enters the separator (20) again through the low-pressure steam pipeline (60) to exchange heat with the sewage in the separator (20) and then flows back to the water storage device (30).

2. The boiler system according to claim 1, wherein a section of the low pressure steam line (60) in the separator (20) is provided inside the contaminated water.

3. The boiler system according to claim 1, wherein the ejector (40) is located at an upper portion of the separator (20) and communicates with the upper portion of the separator (20), the number of the ejectors (40) is one or more, and when the number of the ejectors (40) is plural, the ejectors (40) are arranged in series or in parallel.

4. The boiler system according to claim 1, further comprising a pump body (90), the pump body (90) being disposed on the heating line (70) to power movement of the liquid.

5. The boiler system according to claim 1, further comprising a water inlet line (100), the water inlet line (100) being in communication with the separator (20) for conveying contaminated water into the separator (20) through the water inlet line (100).

6. The boiler system according to claim 1, further comprising a steam injection line (110), the steam injection line (110) being in communication with the distributor (50) to convey a portion of the steam within the distributor (50) into a steam injection well.

7. The boiler system according to claim 1, further comprising a salt discharge line (120), the salt discharge line (120) communicating with a bottom of the separator (20) to discharge concentrated brine within the separator (20) out of the separator (20).

8. The boiler system according to claim 1, wherein the separator (20) is plural, and each of the separators (20) is disposed in parallel or in series and is communicated with the water reservoir (30).

9. The boiler system according to claim 1, wherein the evaporation of water in the separator (20) may be performed by one or more evaporation devices selected from flash evaporation, multi-stage flash evaporation, and multi-effect evaporation.

10. The boiler system according to claim 9, further comprising a plurality of valves, the valves being arranged in one-to-one correspondence with the separators (20) to control an operating state of each of the separators (20).

11. The boiler system according to claim 7, further comprising a salinity detector for detecting the salinity of the liquid in the separator (20), and wherein the salt rejection line (120) is activated when the salinity detected by the salinity detector is greater than a preset value.

12. The boiler system according to claim 11, further comprising a prompting device, wherein the prompting device is connected to the salt content detector, and when the salt content detected by the salt content detector is greater than the preset value, the salt content detector sends a signal to the prompting device so that the prompting device gives an alarm; arrange salt pipeline (120) and be provided with electric switch valve or manual switch valve, work as it is provided with to arrange salt pipeline (120) during the manual switch valve, the staff according to suggestion device's warning, open manual switch valve.

Technical Field

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

Background

In the process of thick oil production, the production is usually carried out by injecting hot steam. Steam generation equipment such as wet steam boilers, superheated boilers and the like are commonly adopted in oil fields to generate steam. In order to save water resources, the thick oil purified sewage is often utilized to produce steam, when the boiler water is the thick oil purified sewage, the thick oil purified sewage is converted into steam in the boiler after entering the boiler because the thick oil purified sewage contains a large amount of salts such as sodium salt, calcium salt, dissolved silicon and the like, salting out and scaling are easily generated in a boiler system, the normal production is influenced by blocking the system, and potential safety hazards exist.

Disclosure of Invention

The invention mainly aims to provide a boiler system to solve the problem that salting out and scaling are easily generated in a boiler when steam is produced by using thick oil to purify sewage in the prior art.

In order to achieve the above object, the present invention provides a boiler system comprising: a boiler; a separator for containing the contaminated water; a water reservoir; an ejector in communication with the separator; a dispenser; a low pressure steam pipeline, wherein one part of the low pressure steam pipeline is arranged in the separator in a penetrating way, and two ends of the low pressure steam pipeline are respectively communicated with the ejector and the water storage device; the heating pipeline is partially arranged in the boiler in a penetrating manner, two ends of the heating pipeline are respectively communicated with the water storage device and the distributor, and clean water in the water storage device is heated into steam through the heating pipeline and then enters the distributor; the two ends of the high-pressure steam pipeline are respectively communicated with the distributor and the ejector, clean water in the water storage device passes through the heating pipeline, the distributor, the high-pressure steam pipeline and the ejector, then the steam in the separator is pumped out of the separator to cause vacuum in the separator, the steam is mixed in the ejector, and the mixed steam enters the separator again through the low-pressure steam pipeline to exchange heat with sewage in the separator and then flows back to the water storage device.

Further, a section of the low pressure steam line in the separator is arranged inside the sewage.

Further, the ejector is located at the upper part of the separator and is communicated with the upper part of the separator, and the ejector is one or more, and when the ejector is multiple, the ejectors are arranged in series or in parallel.

Further, the boiler system also comprises a pump body, and the pump body is arranged on the heating pipeline and provides power for the movement of liquid.

Further, the boiler system further comprises a water inlet pipeline, wherein the water inlet pipeline is communicated with the separator so as to convey the sewage into the separator through the water inlet pipeline.

Further, the boiler system further comprises a steam injection line in communication with the distributor to convey a portion of the steam within the distributor into the steam injection well.

Further, the boiler system also comprises a salt discharge pipeline which is communicated with the bottom of the separator so as to discharge the strong brine in the separator out of the separator.

Further, the separator is a plurality of, and each separator is parallelly connected or the series arrangement, and all communicates with the water receiver.

Further, the evaporation of the water in the separator can adopt one or more evaporation devices of flash evaporation, multi-stage flash evaporation and multi-effect evaporation.

Furthermore, the boiler system also comprises a plurality of valves, and the valves are arranged in one-to-one correspondence with the separators so as to control the working state of each separator.

Further, the boiler system also comprises a salt content detector for detecting the salt content of the liquid in the separator, and when the salt content detected by the salt content detector is greater than a preset value, the salt discharging pipeline is started.

The boiler system further comprises a prompting device, the prompting device is connected with the salt content detector, and when the salt content detected by the salt content detector is larger than a preset value, the salt content detector sends a signal to the prompting device so as to enable the prompting device to give an alarm for prompting; the salt discharge pipeline is provided with an electric switch valve or a manual switch valve, and when the salt discharge pipeline is provided with the manual switch valve, a worker opens the manual switch valve according to the alarm prompt of the prompt device.

By applying the technical scheme of the invention, through the arrangement of the separator, the ejector, the low-pressure steam pipeline, the heating pipeline and the high-pressure steam pipeline, when the device is used, clean water in the water storage device is in the heating pipeline and forms high-pressure steam after being heated by the boiler, the high-pressure steam enters the high-pressure steam pipeline after being distributed by the distributor and then enters the low-pressure steam pipeline through the ejector to form low-pressure steam, meanwhile, steam generated by heating sewage in the separator enters the low-pressure steam pipeline through the ejector, the two parts of steam are mixed and flow back to the water storage device through the low-pressure steam pipeline together, so that the phenomena of salting-out and scaling of the sewage in the boiler during steam production are avoided, the blockage of subsequent pipelines is avoided, and the smoothness of the pipelines and the normal work of other systems connected and matched with the boiler system are ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of a boiler system of the present invention.

Wherein the figures include the following reference numerals:

10. a boiler; 20. a separator; 30. a water reservoir; 40. an ejector; 50. a dispenser; 60. a low pressure steam line; 70. a heating line; 80. a high pressure steam line; 90. a pump body; 100. a water inlet line; 110. a steam injection pipeline; 120. a salt discharge line; 130. a steam injection pipeline.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, 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 application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

The invention provides a boiler system, aiming at solving the problem that the boiler is easy to salt out and scale when steam is produced by using thick oil to purify sewage in the prior art.

A boiler system as shown in fig. 1, comprising a boiler 10, a separator 20 for containing contaminated water, a water reservoir 30, an injector 40, a distributor 50, a low pressure steam line 60, a heating line 70, and a high pressure steam line 80, the injector 40 being in communication with the separator 20; a part of the low pressure steam line 60 is penetrated in the separator 20, and both ends of the low pressure steam line 60 are respectively communicated with the injector 40 and the water reservoir 30; a part of the heating pipeline 70 is arranged in the boiler 10 in a penetrating way, two ends of the heating pipeline 70 are respectively communicated with the water storage device 30 and the distributor 50, and clean water in the water storage device 30 is heated into steam through the heating pipeline 70 and then enters the distributor 50; both ends of the high-pressure steam pipeline 80 are respectively communicated with the distributor 50 and the ejector 40, clean water in the water storage device 30 passes through the heating pipeline 70, the distributor 50, the high-pressure steam pipeline 80 and the ejector 40, then the steam in the separator 20 is pumped out of the separator 20, vacuum is generated in the separator 20, the steam is mixed in the ejector 40, and the mixed steam enters the separator 20 again through the low-pressure steam pipeline 60, exchanges heat with sewage in the separator 20 and then flows back to the water storage device 30.

The boiler system of the present embodiment is constructed by providing the separator 20, the ejector 40, the low-pressure steam line 60, the heating line 70 and the high-pressure steam line 80, in use, the fresh water in the reservoir 30 is heated in the heating line 70 by the boiler 10 to form high pressure steam, which is distributed through the distributor 50 into the high pressure steam line 80, then enters the low-pressure steam pipeline 60 through the ejector 40 to form low-pressure steam, simultaneously, steam generated by heating the sewage in the separator 20 enters the low-pressure steam pipeline 60 through the ejector 40, the two parts of steam are mixed and flow back to the water receiver 30 through the low-pressure steam pipeline 60 together, thereby avoiding the salting-out and scaling of the sewage in the boiler 10 during the steam production, avoiding the blockage of the subsequent pipeline, and ensuring the smoothness of the pipeline and the normal work of other systems connected and matched with the boiler system.

Optionally, the pipe section of the low pressure steam pipeline 60 in the separator 20 is arranged inside the sewage and is arranged in an S-shaped convolution, so that the heat exchange efficiency between the low pressure steam pipeline 60 and the sewage in the separator 20 is increased, and the heating effect on the sewage and the condensation effect of the steam in the low pressure steam pipeline 60 are ensured. Similarly, the section of the heating line 70 within the boiler 10 is S-shaped and convoluted to ensure that the boiler 10 can sufficiently heat the fresh water in the heating line 70 into steam.

Because the steam moves to the upper part of the separator 20 when the sewage in the separator 20 is heated, the ejector 40 is positioned at the upper part of the separator 20 and is communicated with the upper part of the separator 20, one or more ejectors 40 are provided, and when the number of ejectors 40 is multiple, the ejectors 40 are arranged in series or in parallel, so that the steam in the separator 20 can enter the ejector 40 under the action of the self-movement and the low-pressure steam in the low-pressure steam pipeline 60 without arranging an additional power device, and the complexity of the boiler system is simplified.

In this embodiment, the boiler system further comprises a pump body 90, preferably a plunger pump, which is arranged on a section of the heating line 70 near the water reservoir 30, to power the movement of the fresh water in the water reservoir 30.

In this embodiment, the boiler system further comprises a water inlet line 100, a steam injection line 110 and a salt discharge line 120, the water inlet line 100 is communicated with the separator 20 to convey the sewage into the separator 20 through the water inlet line 100, the steam injection line 110 is communicated with the distributor 50 to convey a part of the steam in the distributor 50 into the steam injection well for the purpose of producing the oil extraction steam from the sewage, and the salt discharge line 120 is communicated with the bottom of the separator 20 to discharge the strong brine in the separator 20 out of the separator 20.

Alternatively, the evaporation of the water in the separator 20 may employ one or more evaporation devices selected from flash evaporation, multi-stage flash evaporation, and multi-effect evaporation.

The boiler system of the present embodiment is used as follows:

at the initial operation stage of the boiler 10, firstly, adding clean water into the water storage device 30, pressurizing the clean water by a plunger pump, then, entering the boiler 10 through the heating pipeline 70 for heating, then, entering the distribution from the heating pipeline 70 for steam diversion, entering the diversion steam into the ejector 40 through the high-pressure steam pipeline 80, and then, entering the low-pressure steam pipeline 60 to form low-pressure steam; the ejector 40 makes the sewage which enters the separator 20 in advance form steam in the separator 20 under the action of negative pressure formed by the ejector 40, the steam enters the ejector 40 through the ejection steam pipeline 130, then is mixed with the low-pressure steam in the low-pressure steam pipeline 60, enters the separator 20 through the low-pressure steam pipeline 60 together, forms condensed water after heat exchange with the sewage in the separator 20, enters the water storage device 30 through the low-pressure steam pipeline 60, and enters a normal steam production stage.

In the normal steam production stage, the sewage entering the separator 20 forms steam in the separator 20 under the action of negative pressure formed by the ejector 40, the steam enters the ejector 40 through the ejection steam pipeline 130, then is mixed with the low-pressure steam in the low-pressure steam pipeline 60, jointly enters the separator 20 through the low-pressure steam pipeline 60, forms condensed water after heat exchange with the sewage in the separator 20, enters the water storage device 30 through the low-pressure steam pipeline 60, enters the boiler 10 for heating through the heating pipeline 70 after being pressurized by the plunger pump, enters the distributor 50 through the heating pipeline 70 for steam splitting after being heated, after the steam splitting, a part of steam enters the steam injection well through the steam injection pipeline 110 for steam injection, and the other part of steam enters the ejector 40 through the high-pressure steam pipeline 80; meanwhile, after the sewage at the lower part of the separator 20 is subjected to heat exchange, most of the sewage forms steam, and a small part of the sewage forms strong brine, the steam enters the ejector 40, and the strong brine is discharged out of the system through the salt discharge pipeline 120 and enters a spray drying field for drying so as to achieve the purposes of purifying the sewage, removing salt and reducing scale.

In the present embodiment, the separator 20 is provided in plurality, and each separator 20 is provided in parallel and is communicated with the water reservoir 30. The boiler system further comprises a plurality of valves, which are arranged in one-to-one correspondence with the separators 20 to control the operation state of each separator 20. Thus, when a large amount of salting-out scaling phenomenon occurs in the separator 20, the separator 20 without salting-out scaling can be switched to in time through the valve, and meanwhile, the separator 20 with salting-out scaling is descaled, so that the continuous production is ensured. Of course, only one separator 20 may be provided, or when there are a plurality of separators 20, the separators 20 may be provided in series.

In this embodiment, the boiler system further comprises a salinity detector for detecting the salinity of the liquid in the separator 20, and the salt discharge line 120 is activated when the salinity detected by the salinity detector is greater than a preset value.

Optionally, the boiler system further comprises a prompting device, the prompting device is connected with the salt content detector, and when the salt content detected by the salt content detector is larger than a preset value, the salt content detector sends a signal to the prompting device so that the prompting device gives an alarm for prompting; the salt discharge pipeline 120 is provided with an electric switch valve or a manual switch valve, and when the salt discharge pipeline 120 is provided with the manual switch valve, a worker opens the manual switch valve according to the alarm prompt of the prompt device.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. solves the problem that the boiler is easy to salt and scale when thick oil is used for purifying sewage to produce steam in the prior art;

2. the smoothness of the pipeline and the normal work of other systems connected and matched with the boiler system are ensured;

3. a plurality of separators can be switched to use, and the continuous production is ensured.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.