CN113899491A - Pressure transmitter mounting structure of desulfurization absorption tower - Google Patents
Pressure transmitter mounting structure of desulfurization absorption tower Download PDFInfo
- Publication number
- CN113899491A CN113899491A CN202010638855.2A CN202010638855A CN113899491A CN 113899491 A CN113899491 A CN 113899491A CN 202010638855 A CN202010638855 A CN 202010638855A CN 113899491 A CN113899491 A CN 113899491A
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/0046—Fluidic connecting means using isolation membranes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a pressure transmitter mounting structure and a pressure transmitter mounting method for a desulfurization absorption tower, which can prevent slurry solids from depositing and blocking a pipeline of a measurement system, prevent slurry from polluting and corroding a sensor diaphragm of a pressure transmitter, and reduce measurement errors. 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 invention relates to a pressure transmitter mounting structure, in particular to a pressure transmitter mounting structure of a 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.
Disclosure of Invention
The invention provides a pressure transmitter mounting structure of a desulfurization absorption tower, which can solve the problem that slurry solid deposits in a measurement system block pipelines.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to the pressure transmitter mounting structure of the desulfurization absorption tower, the pressure transmitter is connected with the absorption tower through the valve, and the sampling pipeline between the pressure transmitter and the valve is connected with the water supply pipeline.
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 a desulfurization absorption tower according to 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 a third pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 4 is a schematic view of a fourth pressure transmitter mounting structure of the desulfurization absorption tower of the present invention.
Fig. 5 is a schematic view of a fifth pressure transmitter mounting structure 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 a desulfurization absorption tower according to 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 desulfurizing 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 pressure transmitter mounting structures three and four 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.
In addition, in the present invention, in the case where the installation position of the pressure transmitter 2 is deviated from the horizontal position to cause a pressure measurement error, the pressure zero point is ensured by zero point adjustment in the pressure transmitter or the control device.
The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit 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 |
|---|---|---|---|
| CN202010638855.2A CN113899491A (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 |
|---|---|---|---|
| CN202010638855.2A CN113899491A (en) | 2020-07-07 | 2020-07-07 | Pressure transmitter mounting structure of desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113899491A true CN113899491A (en) | 2022-01-07 |
Family
ID=79186498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010638855.2A Pending CN113899491A (en) | 2020-07-07 | 2020-07-07 | Pressure transmitter mounting structure of desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113899491A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754917A (en) * | 2022-03-02 | 2022-07-15 | 创升益世(东莞)智能自控有限公司 | non-Newtonian fluid pressure measurement system and method |
-
2020
- 2020-07-07 CN CN202010638855.2A patent/CN113899491A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754917A (en) * | 2022-03-02 | 2022-07-15 | 创升益世(东莞)智能自控有限公司 | non-Newtonian fluid pressure measurement system and method |
| CN114754917B (en) * | 2022-03-02 | 2024-06-04 | 创升益世(东莞)智能自控有限公司 | Non-Newtonian fluid pressure measurement system and method |
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 | |
| CN213749479U (en) | Device for measuring density and pH value of desulfurized gypsum slurry in combined manner | |
| CN205593597U (en) | Slurry tank liquid level measurement device | |
| CN210268996U (en) | Limestone wet desulphurization demister differential pressure measuring device | |
| CN206756633U (en) | Desulfurizing tower density on-line measurement device | |
| CN211085374U (en) | Differential pressure type flowmeter with anti-blocking device | |
| CN115979379A (en) | Adjusting flange and guided wave radar liquid level device | |
| CN210347387U (en) | Device for synchronously measuring pH value and density of wet desulphurization slurry | |
| CN201096740Y (en) | Plasm PH value measuring device | |
| CN214310022U (en) | Accurate measurement system of wet flue gas desulfurization thick liquid density and PH meter | |
| CN211189669U (en) | Overflow pipe anti-blocking device of wet desulphurization absorption tower and wet desulphurization absorption tower | |
| CN219657223U (en) | Desulfurization slurry PH meter sampling device and desulfurization system | |
| CN209656494U (en) | Slurry density measurement device in a kind of desulfurizing tower suitable for calcium method desulfurization | |
| CN106352940A (en) | An anti-clogging device for lower liquid level | |
| CN112557252A (en) | Desulfurization slurry density measuring device and method | |
| CN204649667U (en) | The measurement mechanism of slurry pH value in absorption tower | |
| CN110567635A (en) | Differential pressure measuring device and differential pressure measuring method for limestone wet desulphurization demister | |
| CN213749481U (en) | Back flush desulfurization slurry density measuring device | |
| CN215866247U (en) | Density measuring device for wet desulphurization | |
| CN112682542A (en) | Improved liquid level pressure tapping structure of torch water-sealed tank | |
| CN219935055U (en) | Wet flue gas desulfurization absorption tower liquid level measurement device and desulfurizing tower | |
| CN201408157Y (en) | Density and pH valve measuring device for wet flue gas desulfurization slurry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |