Steam-water separation and purification device for sewage treatment of thermal power plant

Abstract

The utility model discloses a steam-water separation and purification device for sewage treatment of a thermal power plant, and particularly relates to the technical field of steam-water separation and purification, the steam-water separation and purification device comprises a centrifugal separator for separating steam and water, and one side of the top of the centrifugal separator is fixedly communicated with a feeding pipe; one side of the top of the centrifugal separator fixedly communicates with a gas outlet pipe used for discharging gas, one side of the bottom of the centrifugal separator fixedly communicates with a water outlet pipe used for discharging liquid, and a purification mechanism used for purifying discharged gas is arranged at the bottom of the centrifugal separator. Harmful gas in separated gas can be purified through the purification mechanism, the external environment is prevented from being polluted, the safety is improved, impurities in separated liquid can be filtered through the filtering mechanism, and the purity of the separated liquid is improved.

Description

Technical Field

[0001] This utility model relates to the field of steam-water separation and purification technology, specifically to a steam-water separation and purification device for wastewater treatment in thermal power plants. Background Technology

[0002] The effluent from the end of wastewater treatment at thermal power plants may contain some gases, depending on the specific production process and wastewater treatment system. Possible gases include ammonia, carbon dioxide, hydrogen sulfide, methane, oxygen, and nitrogen. Gas and liquid separation can be achieved through gravity separation, sieve tray separation, membrane separation, centrifugal separation, and refrigeration.

[0003] For example, Chinese patent application No. 202021073310.3 discloses a water-gas separator, which includes a separator body and four separator filter cartridges. An exhaust pipe is welded to the top of the separator body, and an air inlet pipe is fixedly connected to the upper left side wall of the separator body. The right end of the air inlet pipe is connected to the left side wall of the separator body, and a horizontal plate is fixedly connected to the right end of the air inlet pipe. A water-blocking plate, a partition plate, a support plate, a filter plate, and a conical groove are fixedly connected to the inner side wall of the separator body from top to bottom. A gas conduit is fixedly connected inside the partition plate and inside the support plate to separate water and air. The dry air passing through the water-blocking plate is discharged from the exhaust pipe to obtain clean and dry air, preventing damage to other equipment. A solenoid valve is opened to drain water, so that the accumulated water volume can be observed and the separated water is automatically discharged, improving the working efficiency when separating water and gas.

[0004] However, the following problems still exist in this technical solution: the gas separated by this technical solution contains harmful substances, and the device does not purify the separated gas, which can easily pollute the external environment and is dangerous. Utility Model Content

[0005] The purpose of this invention is to provide a gas-water separation and purification device for wastewater treatment in thermal power plants. The purification mechanism can purify harmful gases in the separated gas, avoid polluting the external environment, and improve safety. The filtration mechanism can also filter impurities in the separated liquid, improving the purity of the separated liquid, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steam-water separation and purification device for wastewater treatment in thermal power plants, comprising a centrifugal separator for separating steam and water, a feed pipe fixedly connected to one side of the top of the centrifugal separator, an outlet pipe for discharging gas fixedly connected to one side of the top of the centrifugal separator, a water outlet pipe for discharging liquid fixedly connected to one side of the bottom of the centrifugal separator, and a purification mechanism for purifying the discharged gas at the bottom of the centrifugal separator.

[0007] Preferably, the purification mechanism includes a first connecting pipe connected to one end of the gas outlet pipe, a purification box fixedly connected to the bottom of the first connecting pipe, a plug plate inserted inside the purification box, an activated carbon plate embedded inside the plug plate, a second connecting pipe fixedly connected to one side of the purification box, and a switch valve fixedly connected to the outside of the second connecting pipe for purifying the emitted gas.

[0008] Preferably, the top of the plug-in plate penetrates through the purification box and extends beyond the top of the purification box. The plug-in plate has a first threaded hole on both sides, and the purification box has a second threaded hole on both sides. The first threaded hole and the second threaded hole are connected internally with a first bolt for disassembling the plug-in plate.

[0009] Preferably, the centrifuge is provided with a filtration mechanism on one side for filtering the discharged liquid. The filtration mechanism includes a third connecting pipe connected to one end of the outlet pipe, and a storage tank fixedly connected to the bottom end of the third connecting pipe. A filter plate is inserted inside the storage tank. One side of the filter plate passes through the storage tank and extends out of the storage tank. Two fourth threaded holes are opened on one side of the filter plate, and two third threaded holes are opened on one side of the storage tank. The third threaded holes and the fourth threaded holes are connected internally by the same second bolt. A handle is fixedly provided on one side of the filter plate for filtering the discharged liquid.

[0010] Preferably, the storage tank is provided with an alarm mechanism on one side to remind people to drain the stored liquid in a timely manner. The alarm mechanism includes a fourth connecting pipe connected to one side of the storage tank, a float inside the fourth connecting pipe, a touch rod fixedly connected to the top of the float, the top of the touch rod penetrating through the fourth connecting pipe and extending out of the top of the fourth connecting pipe, a support frame fixedly provided on the top of the storage tank, an alarm on the top of the storage tank, and a touch switch at the bottom of the support frame for controlling the alarm to remind people to drain the stored liquid in a timely manner.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0012] 1. The gas is separated by centrifugal separator. The separated gas enters the first connecting pipe through the gas outlet pipe, and then enters the purification box through the first connecting pipe. The activated carbon plate inside the purification box can effectively remove harmful gases in the separated gas. The gas is then discharged into the external environment through the second connecting pipe. This utility model can purify the harmful gases in the separated gas through the purification mechanism, avoid polluting the external environment, and improve safety.

[0013] 2. The steam and water are separated by a centrifugal separator. The separated liquid enters the third connecting pipe through the water outlet pipe, and then enters the storage tank through the third connecting pipe. The filter plate inside the storage tank can filter impurities in the liquid, improving the purity of the separated liquid. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a front view of the present invention;

[0016] Figure 2 This is a rear view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the purification box of this utility model;

[0018] Figure 4 This is a schematic diagram of the purification mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the filtration mechanism of this utility model;

[0020] Figure 6 This is a cross-sectional view of the storage box of this utility model;

[0021] Figure 7 This is a schematic diagram of the alarm mechanism of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Centrifugal separator; 2. Feed pipe; 3. Air outlet pipe; 4. Water outlet pipe;

[0024] 5 Purification mechanism, 501 First connecting pipe, 502 Purification box, 503 Insertion plate, 504 Activated carbon plate, 505 Second connecting pipe, 506 Switch valve, 507 First threaded hole, 508 Second threaded hole, 509 First bolt;

[0025] 6. Filtering mechanism, 601. Third connecting pipe, 602. Storage box, 603. Third threaded hole, 604. Fourth threaded hole, 605. Second bolt, 606. Handle, 607. Filter plate;

[0026] 7 Alarm mechanism, 701 Fourth connecting pipe, 702 Float, 703 Touch rod, 704 Support frame, 705 Tactile switch, 706 Alarm device. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-7 The device shown is a steam-water separation and purification device for wastewater treatment in thermal power plants. It includes a centrifugal separator 1 for separating steam and water. A feed pipe 2 is fixedly connected to one side of the top of the centrifugal separator 1. An outlet pipe 3 for discharging gas is fixedly connected to one side of the top of the centrifugal separator 1. A water outlet pipe 4 for discharging liquid is fixedly connected to one side of the bottom of the centrifugal separator 1. A purification mechanism 5 for purifying the discharged gas is provided at the bottom of the centrifugal separator 1.

[0029] like Figure 3 , 4 As shown, the purification mechanism 5 includes a first connecting pipe 501 connected to one end of the air outlet pipe 3. The bottom of the first connecting pipe 501 is fixedly connected to a purification box 502. A plug-in plate 503 is inserted into the purification box 502. An activated carbon plate 504 is embedded inside the plug-in plate 503. A second connecting pipe 505 is fixedly connected to one side of the purification box 502. A switch valve 506 is fixedly fixed to the outside of the second connecting pipe 505.

[0030] When the soda enters the centrifugal separator 1 through the feed pipe 2, due to the difference in density between the gas and the liquid, under the action of centrifugal force, the heavier liquid droplets are thrown onto the inner wall of the centrifugal separator 1, while the lighter gas continues to flow upward.

[0031] The separated gas enters the first connecting pipe 501 through the gas outlet pipe 3, and then enters the purification box 502 through the first connecting pipe 501. The activated carbon plate 504 inside the purification box 502 can effectively remove harmful gases from the separated gas. When the switch valve 506 is opened, the purified gas is discharged into the external environment through the second connecting pipe 505. This utility model can purify harmful gases in the separated gas through the purification mechanism 5, avoid polluting the external environment, and improve safety.

[0032] like Figure 3 , 4 As shown, the top of the plug plate 503 penetrates through the purification box 502 and extends out of the top of the purification box 502. The plug plate 503 has a first threaded hole 507 on both sides and a second threaded hole 508 on both sides of the purification box 502. The first threaded hole 507 and the second threaded hole 508 are connected by a first bolt 509.

[0033] When the activated carbon plate 504 fails, rotate the first bolt 509 to unscrew it from the first threaded hole 507 and the second threaded hole 508. Then pull the plug plate 503 to pull it out from the purification box 502, so as to facilitate the replacement of the activated carbon plate 504 on the plug plate 503 and avoid affecting the purification efficiency.

[0034] like Figure 5 , 6 As shown, the centrifuge 1 is provided with a filter mechanism 6 on one side for filtering the discharged liquid. The filter mechanism 6 includes a third connecting pipe 601 connected to one end of the water outlet pipe 4. The bottom end of the third connecting pipe 601 is fixedly connected to a storage tank 602. A filter plate 607 is inserted inside the storage tank 602. One side of the filter plate 607 passes through the storage tank 602 and extends out of the storage tank 602. Two fourth threaded holes 604 are opened on one side of the filter plate 607. Two third threaded holes 603 are opened on one side of the storage tank 602. The third threaded holes 603 and the fourth threaded holes 604 are connected by the same second bolt 605. A handle 606 is fixedly provided on one side of the filter plate 607.

[0035] The separated liquid enters the third connecting pipe 601 through the water outlet pipe 4, and then enters the storage tank 602 through the third connecting pipe 601. The filter plate 607 inside the storage tank 602 can filter impurities in the liquid and improve the purity of the separated liquid.

[0036] When it is necessary to filter impurities from filter plate 607, rotate the second bolt 605 to turn it out from inside the third threaded hole 603 and the fourth threaded hole 604, pull the handle 606, and use the handle 606 to pull the filter plate 607 out from inside the storage box 602, so as to facilitate the cleaning of impurities and avoid affecting the filtration efficiency.

[0037] like Figure 5 , 6 As shown, the storage tank 602 is provided with an alarm mechanism 7 on one side to remind people to drain the stored liquid in a timely manner. The alarm mechanism 7 includes a fourth connecting pipe 701 connected to one side of the storage tank 602. A float 702 is provided inside the fourth connecting pipe 701. A touch rod 703 is fixedly connected to the top of the float 702. The top of the touch rod 703 passes through the fourth connecting pipe 701 and extends out of the top of the fourth connecting pipe 701. A support frame 704 is fixedly provided on the top of the storage tank 602. An alarm 706 is provided on the top of the storage tank 602. A touch switch 705 for controlling the alarm 706 is provided at the bottom of the support frame 704.

[0038] When water is stored inside the storage tank 602, the float 702 inside the fourth connecting pipe 701 will move upward as the water level rises. As the float 702 moves, it can drive the touch rod 703 to move. The touch rod 703 can press the tactile switch 705, and the tactile switch 705 can control the alarm 706 to sound an alarm, which is used to remind people to drain the stored liquid in time.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A steam-water separation and purification device for sewage treatment in a thermal power plant, comprising a centrifugal separator (1) for separating steam and water, characterized in that: The centrifugal separator (1) has a feed pipe (2) fixedly connected to one side of the top, an outlet pipe (3) for discharging gas fixedly connected to one side of the top, a water outlet pipe (4) for discharging liquid fixedly connected to one side of the bottom, and a purification mechanism (5) for purifying the discharged gas at the bottom of the centrifugal separator (1). The purification mechanism (5) includes a first connecting pipe (501) connected to one end of the air outlet pipe (3), and a purification box (502) is fixedly connected to the bottom of the first connecting pipe (501). A plug plate (503) is inserted into the purification box (502), and an activated carbon plate (504) is embedded inside the plug plate (503). The centrifugal separator (1) is provided with a filtration mechanism (6) on one side to filter the discharged liquid.

2. The steam-water separation and purification device for sewage treatment in a thermal power plant according to claim 1, characterized in that: The purification box (502) is fixedly connected to a second connecting pipe (505) on one side, and a switch valve (506) is fixed to the outside of the second connecting pipe (505).

3. The steam-water separation and purification device for sewage treatment in a thermal power plant according to claim 1, characterized in that: The top of the plug plate (503) penetrates through the purification box (502) and extends out of the top of the purification box (502). The plug plate (503) has a first threaded hole (507) on both sides, and the purification box (502) has a second threaded hole (508) on both sides. The first threaded hole (507) and the second threaded hole (508) are connected by a first bolt (509) inside.

4. The steam-water separation and purification device for sewage treatment in a thermal power plant according to claim 1, characterized in that: The filtration mechanism (6) includes a third connecting pipe (601) connected to one end of the water outlet pipe (4). The bottom end of the third connecting pipe (601) is fixedly connected to a storage box (602). A filter plate (607) is inserted inside the storage box (602). One side of the filter plate (607) passes through the storage box (602) and extends out of the storage box (602). Two fourth threaded holes (604) are opened on one side of the filter plate (607). Two third threaded holes (603) are opened on one side of the storage box (602). The third threaded holes (603) and the fourth threaded holes (604) are connected by the same second bolt (605).

5. A steam-water separation and purification device for treating sewage in a thermal power plant according to claim 4, characterized in that: A handle (606) is fixedly provided on one side of the filter plate (607).

6. A steam-water separation and purification device for treating sewage in a thermal power plant according to claim 4, characterized in that: The storage tank (602) is equipped with an alarm mechanism (7) on one side to remind people to discharge the stored liquid in a timely manner. The alarm mechanism (7) includes a fourth connecting pipe (701) connected to one side of the storage box (602). A float (702) is provided inside the fourth connecting pipe (701). A touch rod (703) is fixedly connected to the top of the float (702). The top of the touch rod (703) passes through the fourth connecting pipe (701) and extends out of the top of the fourth connecting pipe (701). A support frame (704) is fixedly provided on the top of the storage box (602). An alarm (706) is provided on the top of the storage box (602). A tactile switch (705) for controlling the alarm (706) is provided at the bottom of the support frame (704).

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