CN212432407U - Pressure transmitter mounting structure of desulfurization absorption tower - Google Patents
Pressure transmitter mounting structure of desulfurization absorption tower Download PDFInfo
- Publication number
- CN212432407U CN212432407U CN202021305592.5U CN202021305592U CN212432407U CN 212432407 U CN212432407 U CN 212432407U CN 202021305592 U CN202021305592 U CN 202021305592U CN 212432407 U CN212432407 U CN 212432407U
- Authority
- CN
- China
- Prior art keywords
- pressure transmitter
- valve
- absorption tower
- pipeline
- mounting structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a pressure transmitter mounting structure of desulfurization absorption tower can avoid measurement system thick liquid solid state thing deposit to block up the pipeline, prevents that the thick liquid from polluting, corroding pressure transmitter sensor diaphragm, reduces measuring error. The pressure transmitter mounting structure of the desulfurization absorption tower comprises: and the pressure transmitter is connected with the absorption tower through a sampling pipeline and a first valve, and a water supply pipeline is connected between the valve and the pressure transmitter so as to fill water into the sampling pipeline between the first valve and the pressure transmitter.
Description
Technical Field
The utility model relates to a pressure transmitter mounting structure especially relates to the pressure transmitter mounting structure of desulfurization absorption tower wall.
Background
In the wet flue gas desulfurization process, the absorption tower in the shape of a barrel tank and the slurry in the absorption tower are direct equipment and media for removing sulfur dioxide in flue gas. The production process needs to measure the liquid level of the slurry in the absorption tower, and the measuring method is to install one or more groups of pressure transmitters on the wall of the absorption tower. The prior art has the problems that the slurry can generate solid matters to deposit and block a sampling pipeline of the slurry to be detected; the slurry can pollute and scale and corrode a pressure transmitter diaphragm, so that the error of the pressure transmitter is increased; a slurry with a high temperature can increase pressure transmitter error.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pressure transmitter mounting structure of a desulfurization absorption tower, which can solve the problem that the slurry solid deposition of a measuring system blocks a pipeline; the problems of slurry pollution and scaling and corrosion of the sensor diaphragm of the pressure transmitter are solved; the problem of high increase measuring error of thick liquid temperature is solved.
In order to solve the technical problem, the utility model adopts the following technical proposal:
the utility model discloses a pressure transmitter mounting structure of desulfurization absorption tower, pressure transmitter pass through the valve and are connected with the absorption tower pressure transmitter with sampling tube between the valve is connected with water supply pipeline on the road.
According to the utility model provides a pressure transmitter mounting structure of desulfurization absorption tower owing to be connected with water supply pipeline on the sampling pipe between pressure transmitter and valve, can fill water to filling in the sampling pipe between pressure transmitter and the valve, washes the thick liquid solid state thing of jam in the pipeline, guarantees sampling pipe's noncongestion. Because there is liquid water in the sample pipeline, can completely cut off the contact of thick liquid and pressure transmitter diaphragm, avoid pressure transmitter's diaphragm scale deposit and corroded by the thick liquid to can accurately measure the liquid level or the pressure of the thick liquid in the absorption tower.
Drawings
Fig. 1 is a schematic view of a first pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 2 is a schematic diagram of a second pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 3 is a schematic view of the third pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 4 is a schematic diagram of a fourth pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 5 is a schematic diagram of a fifth installation structure of the pressure transmitter of the desulfurization absorption tower of the present invention.
Description of the reference numerals
1 desulfurization absorption tower
2 pressure transmitter
3 trench
11 first valve
12 second valve
13 third valve
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the drawings.
Implementation mode one
Fig. 1 is a schematic view of a first pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
The pressure transmitter 2 is connected with the desulfurization absorption tower 1 through a horizontal sampling pipeline, and a first valve 11 is installed on the sampling pipeline. A stop valve can be arranged between the first valve 11 and the desulfurization absorption tower 1, so that the first valve 11 is convenient to overhaul and maintain. A water supply pipeline is arranged on the pipeline between the first valve 11 and the pressure transmitter 2, the water pipeline is connected with the sampling pipeline through a second valve 12, and flushing and water filling are provided for the sampling pipeline between the first valve 11 and the pressure transmitter 2 and at the upstream of the first valve 11. A waste liquid discharge line is provided downstream of the pressure transmitter 2, and a third valve 13 is provided on the waste liquid discharge line. For discharging waste liquid into the trench 3.
Under the state that pressure transmitter 2 is in work, fill water and be used for keeping apart pressure transmitter 2 and sample object's thick liquid, avoid pressure transmitter 2's diaphragm and the contact of thick liquid.
The working procedure is as follows: the second valve 12 is first opened to flush the line to the absorber column to remove deposits or blockages present in the line. The third valve 13 is opened, the first valve 11 is closed, water enters the pipeline between the first valve 11 and the pressure transmitter 2 along the pipeline, and the pipeline between the first valve 11 and the pressure transmitter 2 is washed to eliminate sediment or blockage in the pipeline. The flushed waste liquid is discharged into the trench 3 via the waste liquid discharge line and the third valve 13. After a predetermined time of flushing, the third valve 13 is closed, and after a predetermined time of flushing, the second valve 12 is closed, so that water is sealed in the sampling pipeline from the pressure transmitter 2 to the absorption tower, and the sealed water exists as an isolation medium between the diaphragm of the pressure transmitter 2 and the slurry, so that the diaphragm of the pressure transmitter 2 is prevented from directly contacting the slurry.
The first valve 11, the second valve 12, and the third valve 13 may be automatic valves or manual valves. When the valve is an automatic valve, the automatic operation is performed under the control of a control system. The operation flow can be performed once every predetermined time or according to the field state. In the case that the valve is a manual valve, the operation can be performed according to the operation condition on site.
According to the first embodiment, since the sampling pipe of the pressure transmitter 2 is periodically flushed, it is possible to eliminate deposits or blockages in the sampling pipe and to ensure that the sampling pipe is unobstructed. In addition, because liquid water exists in the sampling pipeline, the slurry can be isolated from being in contact with the diaphragm of the pressure transmitter, the diaphragm of the pressure transmitter is prevented from scaling or being corroded by the slurry, and therefore the liquid level or the pressure of the slurry in the absorption tower can be accurately measured.
Second embodiment
Fig. 2 is a schematic view showing a second pressure transmitter mounting structure of the desulfurization absorption tower of the present invention. The difference from the first embodiment is that: the pressure transmitter 2 is vertically installed at an upper portion of a downstream of the horizontal sampling pipe, and a third valve 13 is provided at a rear end of the horizontal sampling pipe and constitutes a waste liquid discharge pipe. The other mounting structure is the same as that of the first embodiment.
According to the second embodiment of the present invention, since the pressure transmitter 2 is mounted on the upper portion of the horizontal sampling pipe downstream, it is possible to prevent deposits or blockages from occurring between the diaphragm of the pressure transmitter and the sampling pipe. Even if there is a deposit or a blockage in the connection pipe between the pressure transmitter 2 and the horizontal sampling pipe, it falls into the horizontal sampling pipe by its own weight and is discharged into the trench during the flushing process.
According to the mounting structure of the pressure transmitter 2 of the embodiment, the technical effect of the first embodiment can be achieved, smoothness between the diaphragm of the pressure transmitter 2 and the sampling pipeline can be fully guaranteed, and blockage of the sampling pipeline or deposit existence can be avoided.
Third embodiment
Fig. 3 and 4 are schematic diagrams of a third and a fourth mounting structures of a pressure transmitter of the desulfurization absorption tower of the present invention, respectively. In comparison with the mounting structure of the pressure transmitter 2 of the first and second embodiments, the sampling pipe between the first valve 11 and the pressure transmitter 2 is bent upward by 90 ° or bent downward by 90 °, and the pressure transmitter 2 is mounted at a downstream position of the sampling pipe.
When the sampling line between the pressure transmitter 2 and the desulfurization absorption tower 1 is horizontal, there is a possibility that water sealed in the sampling line as an isolation medium may diffuse into the slurry in the desulfurization absorption tower 1 with the operation time, the isolation medium in the sampling line between the pressure transmitter 2 and the desulfurization absorption tower 1 decreases or disappears, and the sampling line is filled with the slurry to be sampled. Thus, the above technical problem to be solved by the present application still remains.
In view of this, the third embodiment employs the pressure transmitter mounting structure of fig. 3 or 4.
In the case where the slurry has a density less than water as the isolation medium, the pressure transmitter mounting structure of fig. 3 is employed. I.e. the sampling pipe between the first valve 11 and the pressure transmitter 2 is bent vertically downwards by 90 deg.. By bending the sampling pipe 90 ° downward, the water sealed in the sampling pipe of the vertical part is difficult to diffuse into the slurry along the horizontal sampling pipe because its own density is greater than that of the slurry, thereby ensuring that the pipe between the pressure transmitter 2 and the horizontal sampling pipe is reliably sealed and isolated by means of water.
Of course, the bending angle of the sampling line is not limited to 90 °, and other angles may be adopted in the case of ensuring the ability to seal water.
In addition, in the case where the density of the slurry is greater than that of water as an isolation medium, the pressure transmitter mounting structure of fig. 4 is employed. I.e. the sampling pipe between the first valve 11 and the pressure transmitter 2 is bent vertically upwards by 90 deg.. By bending the sampling pipe 90 ° upwards, the water sealed in the sampling pipe of this vertical part is difficult to spread into the slurry along the horizontal sampling pipe because its own density is less than that of the slurry, thereby ensuring that the pipe between the pressure transmitter 2 and the horizontal sampling pipe is reliably sealed and isolated by means of the water.
According to the third embodiment, not only the technical effects of the first embodiment can be achieved, but also the isolation between the pressure transmitter 2 and the slurry can be ensured and the contact between the diaphragm of the pressure transmitter 2 and the slurry can be avoided by selecting either one of the structures regardless of whether the density of the slurry is higher than the density of the isolation medium or lower than the density of the isolation medium. Therefore, the membrane of the pressure transmitter is prevented from scaling or being corroded by the slurry, and the liquid level or the pressure of the slurry in the absorption tower can be accurately measured.
Embodiment IV
Fig. 5 is a schematic view of a fifth pressure transmitter mounting structure of the desulfurization absorption tower of the present invention. Compared to the mounting structure of the pressure transmitter 2 according to the first embodiment, a U-shaped pipe line is provided between the pressure transmitter 2 and the first valve 11.
In the mounting structure of the pressure transmitter 2 according to the fourth embodiment, the sampling pipe is connected to the water supply pipe, extends in the horizontal direction, bends downward by 90 degrees, extends in the horizontal direction, extends by a predetermined length, bends upward by 90 degrees, and has a U-shape that is concave. The pressure transmitter 2 and the third valve 13 are arranged downstream of the upwardly extending sampling line. The pressure transmitter 2 and the third valve 13 may be disposed on a horizontal pipe bent upward by 90 ° and then horizontally. The mounting structure of the pressure transmitter 2 according to the fourth embodiment is not limited to the above-described structure, and may be an n-shape that is bent upward by 90 degrees, then horizontally extended, and then bent downward by 90 degrees after extending a predetermined length, and then convex.
According to the mounting structure of the pressure transmitter 2 of the fourth embodiment, regardless of whether the density of the slurry is greater than or less than the density of the isolation medium, sufficient isolation medium can be ensured to be sealed in the U-shaped pipe of the sampling pipe, isolation of the pressure transmitter 2 from the slurry is ensured, and contact between the diaphragm of the pressure transmitter 2 and the slurry is avoided.
Additionally, the utility model discloses in, pressure transmitter 2's mounted position breaks away from horizontal position and leads to under the condition of pressure measurement error, guarantees pressure zero point through the adjustment of zero point among pressure transmitter or the controlgear.
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention. For example, the sampling pipe between the first valve and the pressure transmitter is spiral; the water supply line is as close as possible to the first valve 11; the water, the desulfurization absorption tower, the mounting structure of the pressure transmitter, and the like shown in the above embodiments are preferable examples, and other structures that can achieve the object of the present invention may be employed.
Claims (7)
1. A pressure transmitter mounting structure of a desulfurization absorption tower is provided with: pressure transmitter is connected its characterized in that through sample pipeline, first valve and absorption tower:
a water supply pipeline is connected between the valve and the pressure transmitter, so that the sampling pipeline between the first valve and the pressure transmitter is filled with water
A second valve is arranged on the water supply pipeline,
a waste liquid discharge pipeline is arranged at the downstream of the sampling pipeline,
and a third valve is arranged on the waste liquid discharge pipeline.
2. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
the pressure transmitter is vertically mounted on the sampling line proximate to and upstream of the third valve.
3. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
the sampling pipeline between the first valve and the pressure transmitter is horizontally arranged, or is bent upwards by 90 degrees or is bent downwards by 90 degrees, and the pressure transmitter is arranged at the downstream position of the sampling pipeline.
4. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
the sampling pipeline between the first valve and the pressure transmitter is in a U shape bent downwards or an n shape bent upwards, and the pressure transmitter is arranged at the downstream position of the sampling pipeline.
5. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
the sampling pipeline between the first valve and the pressure transmitter is spiral, and the pressure transmitter is arranged at the downstream position of the sampling pipeline.
6. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
water is supplied through the water supply line as a medium for isolating the slurry from the pressure transmitter.
7. The pressure transmitter mounting structure of a desulfurization absorption tower according to claim 1,
the pressure transmitter is connected with the desulfurization absorption tower through a horizontal sampling pipeline, the first valve is installed on the sampling pipeline, and a stop valve can be arranged between the first valve and the desulfurization absorption tower, so that the first valve is convenient to overhaul and maintain;
the water supply pipeline is arranged on a pipeline between the first valve and the pressure transmitter, is connected with the sampling pipeline through the second valve and provides flushing and filling water for the sampling pipeline between the first valve and the pressure transmitter and at the upstream of the first valve;
and the downstream of the pressure transmitter is provided with the waste liquid discharge pipeline, and the waste liquid discharge pipeline is provided with the third valve for discharging waste liquid into a trench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021305592.5U CN212432407U (en) | 2020-07-07 | 2020-07-07 | Pressure transmitter mounting structure of desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021305592.5U CN212432407U (en) | 2020-07-07 | 2020-07-07 | Pressure transmitter mounting structure of desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212432407U true CN212432407U (en) | 2021-01-29 |
Family
ID=74278444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021305592.5U Active CN212432407U (en) | 2020-07-07 | 2020-07-07 | Pressure transmitter mounting structure of desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212432407U (en) |
-
2020
- 2020-07-07 CN CN202021305592.5U patent/CN212432407U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113899491A (en) | Pressure transmitter mounting structure of desulfurization absorption tower | |
| CN212432407U (en) | Pressure transmitter mounting structure of desulfurization absorption tower | |
| CN203981533U (en) | A kind of for measuring the device of serum density | |
| CN102012352B (en) | Device for measuring density and pH value of slurry | |
| CN115979379A (en) | Adjusting flange and guided wave radar liquid level device | |
| CN211085374U (en) | Differential pressure type flowmeter with anti-blocking device | |
| CN213749479U (en) | Device for measuring density and pH value of desulfurized gypsum slurry in combined manner | |
| CN210268996U (en) | Limestone wet desulphurization demister differential pressure measuring device | |
| CN201096740Y (en) | Plasm PH value measuring device | |
| CN201954259U (en) | Water seal drainage sealed can device | |
| CN106352940A (en) | An anti-clogging device for lower liquid level | |
| CN208795274U (en) | A kind of wet desulfuration tower slurries overflow remote supervision system | |
| CN210347387U (en) | Device for synchronously measuring pH value and density of wet desulphurization slurry | |
| CN112557252A (en) | Desulfurization slurry density measuring device and method | |
| CN214310022U (en) | Accurate measurement system of wet flue gas desulfurization thick liquid density and PH meter | |
| CN213749481U (en) | Back flush desulfurization slurry density measuring device | |
| CN219657223U (en) | Desulfurization slurry PH meter sampling device and desulfurization system | |
| CN113155671A (en) | Measuring method of continuous automatic measuring and sampling device for density and pH value of slurry of desulfurization absorption tower | |
| CN219935055U (en) | Wet flue gas desulfurization absorption tower liquid level measurement device and desulfurizing tower | |
| CN204649667U (en) | The measurement mechanism of slurry pH value in absorption tower | |
| CN111537680A (en) | Anti-abrasion and anti-corrosion pH value measuring device and measuring method | |
| CN215179396U (en) | Periodic sampling differential pressure densimeter for desulfurization system of thermal power plant | |
| CN215866247U (en) | Density measuring device for wet desulphurization | |
| CN215261932U (en) | Flow measuring device for brine open channel | |
| CN214622182U (en) | Liquid level and density integrated measurement system for slurry of wet desulphurization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |