CN221106996U - Automatic foam-making device of gas washing tower for MVR - Google Patents
Automatic foam-making device of gas washing tower for MVR Download PDFInfo
- Publication number
- CN221106996U CN221106996U CN202323067985.3U CN202323067985U CN221106996U CN 221106996 U CN221106996 U CN 221106996U CN 202323067985 U CN202323067985 U CN 202323067985U CN 221106996 U CN221106996 U CN 221106996U
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- wire mesh
- washing tower
- mvr
- outlet
- gas washing
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- 238000005406 washing Methods 0.000 title claims abstract description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000007921 spray Substances 0.000 claims abstract description 39
- 230000001502 supplementing effect Effects 0.000 claims abstract description 38
- 238000011010 flushing procedure Methods 0.000 claims abstract description 31
- 239000006260 foam Substances 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005201 scrubbing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses an automatic foam-making device of a gas washing tower for MVR, wherein a wire mesh foam remover is arranged in the middle of the gas washing tower, a wire mesh flushing head is arranged above the wire mesh foam remover, a conical section is arranged above the wire mesh flushing head, and a steam outlet on the side wall of the conical section is connected with an inlet of an MVR compressor; the central guide cylinder is inserted from the upper port of the conical section and extends downwards, the upper part of the central guide cylinder is provided with a multi-stage gas washing spray header, and the inlet at the upper end of the central guide cylinder is connected with the secondary steam outlet of the MVR separator; the condensed water outlet of the MVR evaporator is connected with a water supplementing tank, and the bottom outlet of the water supplementing tank is connected with a water supplementing port on the side wall of the lower part of the steam washing tower through a water supplementing pump; the bottom outlet of the steam washing tower is connected with the inlet of the circulating spray pump, the outlet of the circulating spray pump is connected with the air washing spray header through the spray circulating pipe respectively, and is connected with the silk screen flushing header through the silk screen flushing pipe. The device can reduce the water consumption, and solves the problem that the steam washing effect of the steam washing tower is poor and workers are required to inspect frequently.
Description
Technical Field
The utility model relates to a foam removing system of a gas washing tower, in particular to an automatic foam removing device of the gas washing tower for MVR, and belongs to the technical field of energy-saving evaporation equipment.
Background
The core equipment of the mechanical vapor recompression system (MVR system) is a compressor, which has high price, long exchange period and high rotating speed, so that the entrainment of intake entrainment must be strictly reduced. The foam removing device of the gas washing tower is essential to an MVR evaporation system, can effectively reduce entrainment in the evaporation process, protects the impeller of the MVR compressor, and prolongs the service life of MVR equipment. At present, a worker is required to regularly observe an upper sight glass of a silk screen foam remover to judge whether flushing is needed or not in operation of the foam removing device of the gas washing tower, if the observation is not timely or the flushing water is not replaced for a long time, the gas washing effect of the gas washing tower is poor, so that the corrosion of a compressor impeller is accelerated, and the operation of the device is influenced.
Disclosure of utility model
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or problems occurring in the prior art.
The utility model aims to provide an automatic foam-making device of a gas washing tower for MVR, which can reduce water consumption and solve the problems of poor gas washing effect of the gas washing tower and frequent inspection of workers.
In order to solve the technical problems, the automatic foam-making device of the gas washing tower for the MVR comprises a gas washing tower, wherein a wire mesh foam remover is arranged on the cross section of the middle part of the gas washing tower, a wire mesh flushing head is arranged above the wire mesh foam remover, a cylinder body above the wire mesh flushing head is contracted to form a conical section, and the side wall of the conical section is provided with a gas washing tower steam outlet and is connected with an inlet of a MVR compressor through a secondary steam outlet pipe;
The central guide cylinder is inserted from the upper port of the conical section and extends downwards, the multistage scrubbing spray header is arranged in the center of the upper part of the central guide cylinder, and the inlet at the upper end of the central guide cylinder is connected with the secondary steam outlet of the MVR separator through the secondary steam inlet pipe;
The condensed water outlet of the MVR evaporator is connected with the inlet of the water supplementing tank, the bottom outlet of the water supplementing tank is connected with the inlet of the water supplementing pump, and the outlet pipeline of the water supplementing pump is connected with the water supplementing port on the side wall of the lower part of the steam washing tower; the bottom outlet of the steam washing tower is connected with the inlet of the circulating spray pump, the outlet of the circulating spray pump is connected with the air washing spray header through a spray circulating pipe respectively, and is connected with the silk screen flushing header through a silk screen flushing pipe.
As an improvement of the utility model, the outlet of the circulating spray pump is also connected with the MVR feeding tank through a drain pipe.
As a further improvement of the utility model, a liquid level sensor is arranged on the side wall of the gas washing tower, a water supplementing self-control valve is arranged on an inlet pipeline of a water supplementing port of the gas washing tower, and the opening degree of the water supplementing self-control valve is controlled by the liquid level measured by the liquid level sensor.
As a further improvement of the utility model, a wire mesh upper pressure sensor is arranged on the upper side wall of the wire mesh foam remover, a wire mesh lower pressure sensor is arranged on the lower side wall of the wire mesh foam remover, a wire mesh flushing self-control valve is arranged on the wire mesh flushing pipe, and the opening and closing of the wire mesh flushing self-control valve is controlled by the pressure difference measured by the wire mesh upper pressure sensor and the wire mesh lower pressure sensor.
As a further improvement of the utility model, a conductivity sensor is arranged on the side wall of the lower part of the gas washing tower, a drain automatic control valve is arranged in the drain pipe, and the opening and closing of the drain automatic control valve is controlled by the conductivity value measured by the conductivity sensor.
As a further improvement of the utility model, the inlet of the water supplementing tank is also connected with a clean water pipe.
Compared with the prior art, the utility model has the following beneficial effects: 1. the evaporation condensate of the MVR evaporation system is used as the water supplement of the circulating spray water of the gas washing tower, and only the water is required to be externally connected when the gas washing tower is started, so that the water consumption of the device is reduced;
2. Pressure transmitters are respectively arranged on the upper part and the lower part of a silk screen foam remover of the gas washing tower in the device, a silk screen flushing pipe is arranged on the upper part of the silk screen foam remover, and an automatic control valve is arranged on the flushing pipe, so that the problem that staff need to observe regularly is solved, foam can be timely blown off, and the gas washing effect of the gas washing tower is ensured;
3. The side wall of the lower part of the gas washing tower is provided with a conductivity meter, when the conductivity of the circulating spray water in the gas washing tower is detected to reach a set value, a self-control valve on a drain pipe is automatically opened to drain water, so that the water quality of the circulating spray water is ensured;
4. The inner wall of the gas washing tower is provided with a liquid level sensor, the liquid level sensor detects the liquid level in the gas washing tower, the side wall of the gas washing tower is provided with a water supplementing pipe, the water supplementing pipe is provided with an automatic control valve for automatic water supplementing, and when the detected liquid level is lower than a set value, the water supplementing valve is automatically opened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, the drawings being provided for reference and illustration only and not for limiting the present utility model. Wherein:
FIG. 1 is a flow chart of an automatic foam-reducing device of a scrubber for MVR according to the present utility model;
In the figure: 1. a water supplementing tank; 2. a scrubber tower; 2a, a gas washing spray header; 2b, a silk screen flushing head; 2c, a water supplementing port of the steam washing tower; 2d, a silk screen foam remover; mvr separator; MVR compressor; mvr evaporator; MVR feed tank; G1. a gas washing tower drain pipe; G2. a screen flushing tube; G3. a water supplementing pipe; G4. a secondary steam inlet pipe; G5. a secondary steam outlet pipe; G6. a drain pipe; G7. a clear water pipe; B1. a circulating spray pump; B2. a water supplementing pump; l, a liquid level sensor; p1, a pressure sensor at the upper part of the silk screen; p2. a pressure sensor at the lower part of the silk screen; D. a conductivity sensor; F1. a silk screen flushing self-control valve; F2. a water supplementing automatic control valve; F3. a drain self-control valve.
Detailed Description
In the following description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not mean that the device must have a specific orientation.
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model.
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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
As shown in fig. 1, the automatic foam-removing device of the gas washing tower for the MVR comprises a gas washing tower 2, wherein a wire mesh foam remover 2d is arranged on the cross section of the middle part of the gas washing tower 2, a wire mesh flushing head 2b for cleaning the wire mesh foam remover 2d is arranged above the wire mesh foam remover 2d, a cylinder body above the wire mesh flushing head 2b is contracted to form a conical section, a central guide cylinder is inserted from the upper port of the conical section, and a multi-stage gas washing spray head 2a is arranged at the center of the upper part of the central guide cylinder.
The bottom of the gas washing tower 2 is connected with the inlet of a circulating spray pump B1 through a gas washing tower drain pipe G1, the outlet I of the circulating spray pump B1 is connected with a gas washing spray header 2a at the upper part of the gas washing tower 2, the outlet II of the circulating spray pump B1 is connected with a wire mesh flushing header 2B above a wire mesh foam remover 2d through a wire mesh flushing pipe G2, and the outlet III of the circulating spray pump B1 is connected with an MVR feeding tank 6 through a drain pipe G6.
The top inlet of the water supplementing tank 1 is connected with the shell side outlet of the MVR evaporator 5 and the clear water pipe G7, the outlet of the water supplementing tank 1 is connected with the inlet of the water supplementing pump B2, and the outlet of the water supplementing pump B2 is connected with the steam washing tower water supplementing port 2c on the side wall of the lower part of the steam washing tower 2 through the water supplementing pipe G3.
The top outlet of the MVR separator 3 is connected with the top inlet of the gas washing tower 2 through a secondary steam inlet pipe G4, a gas washing tower steam outlet 2e is arranged on the side wall of the conical section at the middle upper part of the gas washing tower 2, and the gas washing tower steam outlet 2e is connected with the inlet of the MVR compressor 4 through a secondary steam outlet pipe G5.
The automatic control valve F1 is washed to the silk screen is installed on silk screen flushing pipe G2, and moisturizing automatic control valve F2 is located moisturizing pipe G3, and drainage automatic control valve F3 is located drain pipe G6, and level sensor L installs in the lateral wall of washing tower 2, and silk screen upper portion pressure sensor P1 is located washing tower 2 lateral wall and silk screen demister 2D upper portion, and silk screen lower part pressure sensor P2 is located washing tower 2 lateral wall and silk screen demister 2D lower part, and conductivity sensor D is located washing tower 2 lower part lateral wall department.
Before the MVR system evaporates secondary steam, a certain liquid level clear water is supplemented into the steam washing tower 2 through a water supplementing pipe G7 to be used as starting-up circulating spray water, after the system operates, condensed water discharged from the shell side of the MVR evaporator 5 is used as circulating spray water, and the evaporated secondary steam enters the steam washing tower 2 through a secondary steam inlet pipe G4 and a central guide cylinder after being separated by an MVR separator 3.
Then a circulating spray pump B1 is started, circulating spray water in the gas washing tower 2 enters the circulating spray pump B1 through a gas washing tower drain pipe G1 and then is pumped into a gas washing spray header 2a to spray and wash secondary steam evaporated by the MVR system. The lower end of the central guide cylinder extends to the position above the liquid level, so that the washing path is longer.
After the washed secondary steam flows out from the lower port of the central guide cylinder, the secondary steam passes through the silk-screen demister 2d and flows out from the steam outlet 2e of the scrubber on the side wall of the conical section.
Along with the operation of the system, the entrainment quantity of the silk screen foam remover 2d in the gas washing tower 2 is increased, and when the pressure difference value between the pressure sensor P1 at the upper part of the silk screen and the pressure sensor P2 at the lower part of the silk screen is larger than 5kPa, the silk screen flushing self-control valve F1 on the silk screen flushing pipe G2 is automatically opened, so that the silk screen can be flushed in time, the effective air excess is ensured, and a good foam-forming effect is achieved.
When the conductivity sensor D detects that the conductivity of the circulating spray water in the gas washing tower 2 is larger than a certain value, the automatic drainage control valve F3 on the drain pipe G6 is automatically opened to be discharged into the MVR feeding tank 6, so that the circulating spray water maintains the stability of low TDS, and the gas washing effect is ensured.
When the automatic water draining control valve F3 on the water draining pipe G6 is opened, the automatic water replenishing control valve F2 on the water replenishing pipe G3 is automatically opened when the liquid level sensor L in the steam washing tower 2 detects that the liquid level of the steam washing tower 2 is lower than a set value, so that the liquid level of circulating spray water in the steam washing tower 2 is timely guaranteed by water replenishing, the stability of the circulating spray pump B1 is guaranteed, the whole steam washing device is configured in an unattended mode, and therefore labor force is saved, and corrosion of an MVR compressor impeller is avoided.
The foregoing description of the preferred embodiments of the present utility model illustrates and describes the basic principles, main features and advantages of the present utility model, and is not intended to limit the scope of the present utility model, as it should be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments. In addition to the embodiments described above, other embodiments of the utility model are possible without departing from the spirit and scope of the utility model. The utility model also has various changes and improvements, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.
Claims (6)
1. The automatic foam-making device of the gas washing tower for MVR comprises a gas washing tower and is characterized in that a wire mesh foam remover is arranged on the cross section of the middle part of the gas washing tower, a wire mesh washing head is arranged above the wire mesh foam remover, a cylinder above the wire mesh washing head is contracted to form a conical section, and the side wall of the conical section is provided with a gas washing tower steam outlet and is connected with an inlet of an MVR compressor through a secondary steam outlet pipe;
The central guide cylinder is inserted from the upper port of the conical section and extends downwards, the multistage scrubbing spray header is arranged in the center of the upper part of the central guide cylinder, and the inlet at the upper end of the central guide cylinder is connected with the secondary steam outlet of the MVR separator through the secondary steam inlet pipe;
The condensed water outlet of the MVR evaporator is connected with the inlet of the water supplementing tank, the bottom outlet of the water supplementing tank is connected with the inlet of the water supplementing pump, and the outlet pipeline of the water supplementing pump is connected with the water supplementing port on the side wall of the lower part of the steam washing tower; the bottom outlet of the steam washing tower is connected with the inlet of the circulating spray pump, the outlet of the circulating spray pump is connected with the air washing spray header through a spray circulating pipe respectively, and is connected with the silk screen flushing header through a silk screen flushing pipe.
2. The automatic foam-generating device for a gas wash tower for MVR according to claim 1, characterized in that: and the outlet of the circulating spray pump is also connected with the MVR feeding tank through a drain pipe.
3. The automatic foam-generating device for a gas wash tower for MVR according to claim 1, characterized in that: the side wall of the gas washing tower is provided with a liquid level sensor, an inlet pipeline of a water supplementing port of the gas washing tower is provided with a water supplementing self-control valve, and the opening of the water supplementing self-control valve is controlled by the liquid level measured by the liquid level sensor.
4. The automatic foam-generating device for a gas wash tower for MVR according to claim 2, characterized in that: the automatic wire mesh flushing device is characterized in that a wire mesh upper pressure sensor is arranged on the upper side wall of the wire mesh foam remover, a wire mesh lower pressure sensor is arranged on the lower side wall of the wire mesh foam remover, a wire mesh flushing automatic control valve is arranged on the wire mesh flushing pipe, and the opening and closing of the wire mesh flushing automatic control valve is controlled by the pressure difference measured by the wire mesh upper pressure sensor and the wire mesh lower pressure sensor.
5. The automatic foam-generating device for a gas wash tower for MVR according to claim 2, characterized in that: the electric conductivity sensor is arranged on the side wall of the lower part of the gas washing tower, the drain pipe is internally provided with a drain automatic control valve, and the opening and closing of the drain automatic control valve is controlled by the electric conductivity value measured by the electric conductivity sensor.
6. The automatic foam-reducing device for a scrubber for MVR according to any one of claims 1 to 5, characterized in that: the inlet of the water supplementing tank is also connected with a clean water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323067985.3U CN221106996U (en) | 2023-11-13 | 2023-11-13 | Automatic foam-making device of gas washing tower for MVR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323067985.3U CN221106996U (en) | 2023-11-13 | 2023-11-13 | Automatic foam-making device of gas washing tower for MVR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221106996U true CN221106996U (en) | 2024-06-11 |
Family
ID=91336686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323067985.3U Active CN221106996U (en) | 2023-11-13 | 2023-11-13 | Automatic foam-making device of gas washing tower for MVR |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221106996U (en) |
-
2023
- 2023-11-13 CN CN202323067985.3U patent/CN221106996U/en active Active
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