阅读说明：本技术 湿法脱硫吸收塔内除雾器冲洗水管调压及防堵塞喷嘴装置 (Pressure regulating and anti-blocking nozzle device for demister flushing pipe in wet desulphurization absorption tower ) 是由 刘畅 郭晨曦 刘宝灵 李庆鹏 李名瀚 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种湿法脱硫吸收塔内除雾器冲洗水管调压及防堵塞喷嘴装置,包括：固定嘴体的前端设有喷水嘴,喷水嘴后端的固定嘴体内设有过水通道,喷水嘴的截面积小于过水通道的截面积,喷水嘴和连通的过水通道在整个固定嘴体内部形成贯通通道；固定嘴体的后端外周设有后部外螺纹,前端外周设有前部外螺纹；调节嘴体内部后端设有带有内螺纹的安装通道,该调节嘴体套设安装在固定嘴体的前端,经安装通道的内螺纹与固定嘴体的前部外螺纹连接；调节嘴体的前端设有出水嘴,该出水嘴前方间隔设有挡水板,挡水板经多个支撑杆与调节嘴体固定连接。该装置通过固定嘴体和调节嘴体配合,能调节水压,使各管路水压均等,也能避免堵塞。(The invention discloses a pressure regulating and anti-clogging nozzle device for a demister flushing water pipe in a wet desulphurization absorption tower, which comprises: the front end of the fixed nozzle body is provided with a water spray nozzle, the fixed nozzle body at the rear end of the water spray nozzle is internally provided with a water passing channel, the sectional area of the water spray nozzle is smaller than that of the water passing channel, and the water spray nozzle and the communicated water passing channel form a through channel in the whole fixed nozzle body; the periphery of the rear end of the fixed nozzle body is provided with a rear external thread, and the periphery of the front end of the fixed nozzle body is provided with a front external thread; the rear end in the adjusting nozzle body is provided with an installation channel with internal threads, the adjusting nozzle body is sleeved at the front end of the fixed nozzle body and is connected with the external threads at the front part of the fixed nozzle body through the internal threads of the installation channel; the front end of the adjusting nozzle body is provided with a water outlet nozzle, the front of the water outlet nozzle is provided with a water baffle at intervals, and the water baffle is fixedly connected with the adjusting nozzle body through a plurality of support rods. The device can adjust water pressure through the matching of the fixed nozzle body and the adjusting nozzle body, so that the water pressure of each pipeline is equal, and the blockage can be avoided.)

1. The utility model provides a defroster washes water pipe pressure regulating and prevents blockking up nozzle device in wet flue gas desulfurization absorption tower which characterized in that includes:

the fixed nozzle body and the adjustable nozzle body; wherein the content of the first and second substances,

the front end of the fixed nozzle body is provided with a water spray nozzle, the fixed nozzle body at the rear end of the water spray nozzle is internally provided with a water passing channel, the sectional area of the water spray nozzle is smaller than that of the water passing channel, and the water spray nozzle and the communicated water passing channel form a through channel in the whole fixed nozzle body;

the periphery of the rear end of the fixed nozzle body is provided with a rear external thread, and the periphery of the front end of the fixed nozzle body is provided with a front external thread;

the rear end in the adjusting nozzle body is provided with an installation channel with internal threads, the adjusting nozzle body is sleeved at the front end of the fixed nozzle body and is connected with the external threads at the front part of the fixed nozzle body through the internal threads of the installation channel;

the front end of the adjusting nozzle body is provided with a water outlet nozzle, a water baffle is arranged in front of the water outlet nozzle at intervals, and the water baffle is fixedly connected with the adjusting nozzle body through a plurality of support rods.

2. The pressure regulating and anti-clogging nozzle device for the flushing water pipe of the demister in the wet desulphurization absorption tower according to claim 1, wherein the periphery of the front end of the fixed nozzle body is provided with a first annular groove, and a first O-shaped sealing ring is arranged in the first annular groove;

and a second annular groove is formed in the periphery of the water spray nozzle of the adjusting nozzle body, and a second O-shaped sealing ring is arranged in the second annular groove.

3. The pressure regulating and anti-clogging nozzle device for the washing water pipe of the demister in the wet desulphurization absorption tower according to claim 1 or 2, wherein the periphery of the regulating nozzle body at the tail end of the rear external thread is provided with a rear annular limiting protrusion;

and a front annular limiting protrusion is arranged on the periphery of the adjusting nozzle body behind the front external thread.

4. The pressure-regulating and anti-clogging nozzle device for the washing water pipe of the demister in the wet desulphurization absorption tower as claimed in claim 1 or 2, wherein the water outlet nozzle of the regulating nozzle body is a trumpet-shaped outlet with an inlet sectional area smaller than an outlet sectional area.

5. The pressure-regulating and anti-clogging nozzle device for the flushing water pipe of the demister in the wet desulphurization absorption tower according to claim 1 or 2, wherein the number of the supporting rods connected with the water baffle is four, and the area of the water baffle is larger than the outlet area of the water outlet nozzle of the regulating nozzle body.

Technical Field

The invention relates to the field of wet desulphurization absorption towers, in particular to a pressure regulating and anti-blocking nozzle device for a demister flushing water pipe in a wet desulphurization absorption tower.

Background

The section of the wet desulphurization absorption tower is circular, the lengths of demister flushing water pipes (made of PPV) are different at different positions in the wet desulphurization absorption tower, although the number of nozzles on pipelines with different lengths is different, the configuration is theoretical calculation, certain difference exists between the configuration and the site, and the structural forms of all nozzles are single, so that the pressures of the flushing water pipes with different lengths are different, the pipes are broken due to high flushing pressure, and the demister is blocked due to low pressure caused by incomplete flushing; a mechanical pressure regulating valve is installed on a washing water inlet main pipe of the demister, but the pressure regulating accuracy of the regulating valve is not high, and the pressure of each washing water pipe is uneven; at present, desulfurization water of each plant is wastewater of the whole plant, contains impurities and has certain corrosivity, and a flushing nozzle of the existing demister is blocked frequently; and, defroster washing water valve is the pneumatic door, and the execution action is too fast, and the pipeline vibration is big in the moment of the valve is opened, easy disconnected pipe.

Disclosure of Invention

Based on the problems in the prior art, the invention aims to provide a pressure regulating and anti-blocking nozzle device for a flushing water pipe of a demister in a wet desulphurization absorption tower, which can solve the problems that the flushing water pipes in the demister of the existing wet desulphurization absorption tower are different in length, the pressure of each flushing water pipe is uneven, impurities are not easy to discharge, a flushing nozzle is easy to block, and a pipeline vibrates greatly at the moment of opening a valve, so that the pipe is easy to break.

The purpose of the invention is realized by the following technical scheme:

the embodiment of the invention provides a pressure regulating and anti-blocking nozzle device for a demister flushing water pipe in a wet desulphurization absorption tower, which comprises:

the fixed nozzle body and the adjustable nozzle body; wherein the content of the first and second substances,

the front end of the fixed nozzle body is provided with a water spray nozzle, the fixed nozzle body at the rear end of the water spray nozzle is internally provided with a water passing channel, the sectional area of the water spray nozzle is smaller than that of the water passing channel, and the water spray nozzle and the communicated water passing channel form a through channel in the whole fixed nozzle body;

the periphery of the rear end of the fixed nozzle body is provided with a rear external thread, and the periphery of the front end of the fixed nozzle body is provided with a front external thread;

the rear end in the adjusting nozzle body is provided with an installation channel with internal threads, the adjusting nozzle body is sleeved at the front end of the fixed nozzle body and is connected with the external threads at the front part of the fixed nozzle body through the internal threads of the installation channel;

the front end of the adjusting nozzle body is provided with a water outlet nozzle, a water baffle is arranged in front of the water outlet nozzle at intervals, and the water baffle is fixedly connected with the adjusting nozzle body through a plurality of support rods.

According to the technical scheme provided by the invention, the pressure regulating and anti-blocking nozzle device for the flushing water pipe of the demister in the wet desulphurization absorption tower, provided by the embodiment of the invention, has the beneficial effects that:

the device is divided into a fixed nozzle body and an adjusting nozzle body, wherein the flow area of the fixed nozzle body is constant, impurities are convenient to discharge, the flow area of the adjusting nozzle body is adjustable, the pressure of each branch pipeline of a demister in an absorption tower is guaranteed to meet the use requirement and is not overpressure, the vibration of pipelines at the moment of switching a flushing valve of the demister is reduced, and the continuous pipe supply is guaranteed; the device is installed in defroster wash pipe terminal head department, guarantees that impurity can discharge in the defroster wash pipe way, does not block up.

Drawings

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

FIG. 1 is a schematic cross-sectional view of an integrated pressure regulating and anti-clogging nozzle device for a demister flushing water pipe according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a fixed nozzle body of a pressure regulating and anti-clogging nozzle device for a demister flushing water pipe according to an embodiment of the present invention;

FIG. 3 is a schematic view taken along line A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a regulating nozzle body of a pressure regulating and anti-clogging nozzle device for a demister flushing water pipe according to an embodiment of the present invention;

FIG. 5 is a schematic view of an installation state of a pressure regulating and anti-clogging nozzle device of a demister flushing water pipe according to an embodiment of the present invention;

the parts corresponding to each mark in the figure are: 1-fixing the mouth body; 11-a water passing channel; 12-water spray nozzle; 13-rear external thread; 14-rear annular stop projection; 15-front external thread; 16-a front annular stop protrusion; 17-a first annular groove; 18-a second annular groove; 2-adjusting the mouth body; 21-installing a channel; 22-water outlet nozzle; 23-internal thread; 24-a support bar; 25-a water baffle; 10-pressure regulating and anti-clogging nozzle device; 20-a pneumatic door; 30-self-standing regulating valve.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.

As shown in fig. 1 to 4, an embodiment of the present invention provides a pressure regulating and anti-clogging nozzle device for a demister flushing water pipe in a wet desulphurization absorption tower, including:

the fixed nozzle body and the adjustable nozzle body; wherein the content of the first and second substances,

the front end of the fixed nozzle body is provided with a water spray nozzle, the fixed nozzle body at the rear end of the water spray nozzle is internally provided with a water passing channel, the sectional area of the water spray nozzle is smaller than that of the water passing channel, and the water spray nozzle and the communicated water passing channel form a through channel in the whole fixed nozzle body;

the periphery of the rear end of the fixed nozzle body is provided with a rear external thread, and the periphery of the front end of the fixed nozzle body is provided with a front external thread;

the rear end in the adjusting nozzle body is provided with an installation channel with internal threads, the adjusting nozzle body is sleeved at the front end of the fixed nozzle body and is connected with the external threads at the front part of the fixed nozzle body through the internal threads of the installation channel;

the front end of the adjusting nozzle body is provided with a water outlet nozzle, a water baffle is arranged in front of the water outlet nozzle at intervals, and the water baffle is fixedly connected with the adjusting nozzle body through a plurality of support rods.

In the device, the periphery of the front end of the fixed nozzle body is provided with a first annular groove, and a first O-shaped sealing ring is arranged in the first annular groove;

and a second annular groove is formed in the periphery of the water spray nozzle of the adjusting nozzle body, and a second O-shaped sealing ring is arranged in the second annular groove.

In the device, the periphery of the adjusting nozzle body at the tail end of the rear external thread is provided with a rear annular limiting protrusion;

and a front annular limiting protrusion is arranged on the periphery of the adjusting nozzle body behind the front external thread.

In the device, the water outlet nozzle of the adjusting nozzle body is a trumpet-shaped outlet with the inlet sectional area smaller than the outlet sectional area.

In the device, the number of the supporting rods connected with the water baffle is four, and the area of the water baffle is larger than the area of the outlet of the water outlet nozzle of the adjusting nozzle body.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 5, the device of the invention is used as a nozzle, when in use, the device is installed at the tail end of each branch pipeline of washing water of a demister in an existing absorption tower, the flow is closed through the whole adjusting part of the device → a mechanical adjusting valve outside the absorption tower is adjusted until the pressure of a certain lowest washing water pipe in the absorption tower meets the operation requirement → the device passes through the adjusting nozzle body part of the nozzle device one by one, the flow is adjusted to ensure that the pressure of each washing water pipe is equal to the pressure of the lowest washing water pipe, thus ensuring that the operation pressures of pipelines with different lengths in the absorption tower are equal. Impurities in the flushing water can be discharged through the fixed nozzle body of the nozzle device, so that the nozzle device is not blocked. The instantaneous part of washing water of the demister washing water valve switch is discharged through the fixed through-flow position of the device, so that the pipeline vibration is reduced, and the pipe is ensured to be uninterrupted.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.