Gas-water separation and purification device at end of wastewater treatment of thermal power plant

Abstract

Disclosed in the present invention is a gas-water separation and purification device at the end of wastewater treatment of a thermal power plant. Said device comprises: a tank body unit, which comprises a purification chamber, a pipe mounting chamber assembly and an exhaust chamber assembly; a primary separation unit, which comprises a water feeding pipe provided on the pipe mounting chamber assembly, a gas-water separation assembly provided on the water feeding pipe and located in the purification chamber, and a temperature-controlling water feeding pipe provided on the purification chamber; and a secondary separation unit, which comprises a water outlet filter assembly connected to the gas-water separation assembly and provided in the purification chamber, a water discharge pipe provided on the pipe mounting chamber assembly, and a temperature-controlling water discharge pipe provided on the purification chamber. By means of providing the primary separation unit and the secondary separation unit in the purification chamber, the present device turns on a water separation pipe when the exhaust chamber assembly finishes exhausting, such that purified liquid enters the secondary separation unit, is filtered and purified, and then is discharged from the end of wastewater treatment. The process effectively improves the purification rate of gases in wastewater.

Description

A steam-water separation and purification device for the end of wastewater treatment in thermal power plants Technical Field

[0001] This invention relates to the technical field of wastewater treatment, and more particularly to a steam-water separation and purification device at the end of 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] At the end of wastewater treatment in thermal power plants, cyclone-type steam-water separators are commonly used. These separators utilize a series of fins, similar to centrifugal separators, to generate high-speed cyclones. The high-speed rotating steam inside the separator throws water droplets against the inner wall and fins. The separated water is discharged through a drain valve at the bottom. This design results in a high load on the drain valve and a large drainage volume when the influent flow is large. If the fluid at the influent end of the steam-water separator contains a lot of mixed gas, it is difficult for operators to judge the separation of gas in the wastewater during operation. Gas may still remain at the discharge end, which is not conducive to improving the gas separation efficiency in wastewater treatment.

[0004] Summary of the Invention

[0005] In view of the problems existing in the current gas-water separation and purification devices at the end of the wastewater treatment process in thermal power plants, this invention is proposed.

[0006] Therefore, the present invention provides a gas-water separation and purification device at the end of wastewater treatment in thermal power plants. Its purpose is to solve the technical problem that when the influent volume is large, the load on the drain valve is high, the discharge volume is large, and if the fluid at the influent end of the gas-water separator contains a lot of mixed gas, there may still be gas remaining at the discharge end, which is not conducive to improving the gas separation efficiency in wastewater treatment.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a steam-water separation and purification device at the end of wastewater treatment in thermal power plants, comprising a silo unit, a primary separation unit, and a secondary separation unit.

[0008] The unit includes a purification chamber, a pipe installation chamber assembly mounted on the purification chamber, and an exhaust chamber assembly mounted on the purification chamber; a primary separation unit includes a water inlet pipe mounted on the pipe installation chamber assembly, a vapor-water separation assembly mounted on the water inlet pipe and located within the purification chamber, and a temperature-controlled water inlet pipe mounted on the purification chamber; and a secondary separation unit includes an outlet water filter assembly connected to the vapor-water separation assembly and located within the purification chamber, an outlet water pipe mounted on the pipe installation chamber assembly, and a temperature-controlled outlet water pipe mounted on the purification chamber.

[0009] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention, wherein: an airtightness inspection pipe and a compartment partition plate are provided on the pipeline installation compartment assembly; the primary separation unit and the secondary separation unit are respectively located on both sides of the compartment partition plate.

[0010] As a preferred embodiment of the gas-water separation and purification device at the end of the wastewater treatment in a thermal power plant according to the present invention, the exhaust chamber assembly includes a top cover portion disposed on the purification chamber and an exhaust portion disposed on the top cover portion; the top cover portion includes a mounting base disposed on the purification chamber, a telescopic cylinder disposed on the mounting base, and an exhaust top cover disposed at the telescopic end of the telescopic cylinder.

[0011] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment in a thermal power plant according to the present invention, the steam-water separation component includes a separation chamber section disposed on the pipeline installation chamber assembly and connected to the inlet pipe, a wastewater separation section disposed on the separation chamber section, and a separation water pipeline section disposed on the outlet end of the separation chamber section and connected to the outlet water filtration assembly.

[0012] As a preferred embodiment of the gas-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention, the wastewater separation section includes an inlet component disposed on the separation chamber, a rotating seat rotatably disposed on the inlet component, and a separation component disposed on the rotating seat and rotatably disposed within the separation chamber.

[0013] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention, the water inlet component includes a water inlet cylinder disposed at the water inlet end of the separation chamber, a separation chamber mounting base disposed on the water inlet cylinder, and a vortex-shaped water outlet end seat disposed on the separation chamber mounting base.

[0014] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment in a thermal power plant according to the present invention, the separation component includes a spiral separation blade disposed on the rotating seat and rotatably disposed on the separation chamber, and a separation plate disposed on the spiral separation blade; a steam liquefaction head is disposed on the side of the separation plate near the water inlet end of the separation chamber.

[0015] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention, the separation chamber includes a separation chamber mounting frame disposed on the purification chamber body, a separation chamber body disposed on the separation chamber mounting frame, and an exhaust valve disposed at the top of the separation chamber body.

[0016] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention, the separation water pipeline section includes: a separation chamber outlet pipe disposed on a single set of separation chamber sections; a separation chamber outlet connecting pipe disposed on the separation chamber outlet pipe and connecting multiple sets of separation chamber outlet pipes; and a main separation water guide pipe disposed on the separation chamber outlet pipe; wherein, a separation water outlet valve is disposed on the separation chamber outlet pipe.

[0017] As a preferred embodiment of the steam-water separation and purification device at the end of the wastewater treatment in a thermal power plant according to the present invention, the effluent filtration assembly includes a filter chamber body disposed on the purification chamber body, and a filtered water inlet body disposed at the outlet end of the effluent pipe of the separation chamber and connected to the inlet end of the filter chamber body.

[0018] The filtered water inlet section includes a filtered water inlet main pipe disposed on the outlet end of the water outlet pipe of the separation chamber, and a filtered water guide pipe disposed on the body of the filter chamber and connected to the filtered water inlet main pipe.

[0019] The filter chamber includes a filter chamber mounting bracket disposed on the purification chamber, a filter chamber disposed on the filter chamber mounting bracket, and a filter screen disposed on the filter chamber.

[0020] The beneficial effects of this invention are as follows: By setting up a primary separation unit and a secondary separation unit in the purification chamber, the spiral vapor structure of the sewage separation section in the primary separation unit, combined with the temperature regulation of the built-in central control layer of the purification chamber, allows the water vapor in the mixed liquid to liquefy and remain inside the separation section. Other gases enter the purification chamber from the separation section through the gas outlet valve, and finally enter the gas treatment channel through the exhaust chamber assembly. When the exhaust chamber assembly finishes venting, the separation water pipeline is opened, allowing the purified liquid to enter the secondary separation unit. After filtration and purification, it is discharged from the end of the sewage treatment process. This process effectively improves the purification rate of gases in sewage. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a front view of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0023] Figure 2 is a perspective view of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0024] Figure 3 is a perspective view of the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0025] Figure 4 is a magnified view of part A in Figure 3.

[0026] Figure 5 is a perspective view of the primary separation unit in the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0027] Figure 6 is a schematic diagram of the separation section in the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0028] Figure 7 is a magnified view of part B in Figure 6.

[0029] Figure 8 is a perspective view of the secondary separation unit in the steam-water separation and purification device at the end of the wastewater treatment process in a thermal power plant according to the present invention.

[0030] Figure 9 is a magnified view of point C in Figure 5.

[0031] Figure 10 is a magnified view of part D in Figure 5.

[0032] Figure descriptions: 100, Chamber unit; 101, Purification chamber; 102, Piping installation chamber assembly; 102a, Air tightness inspection pipe; 102b, Chamber partition plate; 103, Exhaust chamber assembly; 103a, Top cover; 103a-1, Mounting base; 103a-2, Telescopic cylinder; 103a-3, Exhaust top cover; 103b, Exhaust section; 200, Primary separation unit; 201, Gas-water separation assembly; 201a, Separation chamber; 201a-1, Separation chamber mounting bracket; 201a-2, Separation chamber body; 201a-3, Exhaust valve; 201b, Wastewater separation section; 201b-1, Water inlet component; 201b-11, Water inlet cylinder; 201b-12, Separation chamber mounting base; 201b-13, Vortex-shaped water outlet end seat; 201b-2, Rotating seat; 201b-3, Separation component; 201b-31, Spiral separation blades; 201b-32, Separation plate; m, Water vapor liquid 201c, Separating Water Pipeline Section; 201c-1, Separating Chamber Outlet Pipe; 201c-11, Separating Water Outlet Valve; 201c-2, Separating Chamber Outlet Connecting Pipe; 201c-3, Main Separating Water Guide Pipe; 202, Inlet Pipe; 203, Temperature-Controlled Inlet Pipe; 300, Secondary Separation Unit; 301, Temperature-Controlled Outlet Pipe; 302, Outlet Pipe; 303, Outlet Filter Assembly; 303a, Filter Chamber Body Section; 303a-1, Filter Chamber; 303a-2, Filter Chamber Mounting Frame; 303a-3, Filter Screen; 303b, Filtered Water Inlet Section; 303b-1, Filtered Water Inlet Main Pipe; 303b-2, Filtered Water Guide Pipe. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0037] Example 1, referring to Figures 1-3, is the first embodiment of the present invention, which provides a steam-water separation and purification device at the end of the wastewater treatment in a thermal power plant, including a silo unit 100, a primary separation unit 200, and a secondary separation unit 300.

[0038] The chamber unit 100 includes a purification chamber 101, a pipe installation chamber assembly 102 mounted on the purification chamber 101, and an exhaust chamber assembly 103 mounted on the purification chamber 101. The pipe installation chamber assembly 102 is located at the lower end of the purification chamber 101, and a primary separation unit 200 and a secondary separation unit 300 are mounted thereon. The exhaust chamber assembly 103 is used to discharge the wastewater mixed gas separated and discharged by the primary separation unit 200 into the separation and purification device.

[0039] The primary separation unit 200 includes an inlet pipe 202 mounted on the pipe installation chamber assembly 102, a gas-liquid separation component 201 mounted on the inlet pipe 202 and located within the purification chamber 101, and a temperature-controlled inlet pipe 203 mounted on the purification chamber 101. The gas-liquid separation component 201 is capable of separating the gas and liquid components of the gas-liquid mixture at the end of the wastewater treatment process in thermal power plants.

[0040] Furthermore, the secondary separation unit 300 includes an effluent filter assembly 303 connected to the gas-water separation assembly 201 and disposed within the purification chamber 101, an effluent pipe 302 disposed on the pipe installation chamber assembly 102, and a temperature-controlled effluent pipe 301 disposed on the purification chamber 101. The effluent filter assembly 303 can perform final filtration on the wastewater treated by the primary separation unit 200, thereby ensuring that the water flowing out of the gas-water separation purification device can be directly discharged.

[0041] Furthermore, by using the temperature-controlled water inlet pipe 203 and the temperature-controlled water outlet pipe 301 installed on the purification chamber 101, the temperature of the hollow layer between the inner wall of the purification chamber 101 and the two-stage separation unit is adjusted, thereby increasing the temperature of the first-stage separation unit 200. This helps to accelerate the rise of the gas in the mixed liquid inside the first-stage separation unit 200 at high temperature, allowing it to reach the upper part of the purification chamber 101 near the exhaust chamber assembly 103, thereby improving the gas discharge efficiency.

[0042] Furthermore, the pipeline installation chamber assembly 102 is equipped with an airtightness inspection pipe 102a and a chamber partition plate 102b; the primary separation unit 200 and the secondary separation unit 300 are located on both sides of the chamber partition plate 102b, respectively. The chamber partition plate 102b serves to fix the primary separation unit 200 and the secondary separation unit 300. The airtightness inspection pipe 102a facilitates the airtightness test of the equipment by personnel before the purification equipment is put into operation, thus preventing air and water leaks.

[0043] Furthermore, the exhaust chamber assembly 103 includes a top cover 103a disposed on the purification chamber 101, and an exhaust section 103b disposed on the top cover 103a. The exhaust section 103b is connected to the exhaust end of the primary separation unit 200, and the gas in the primary separation unit 200 can be directly discharged from the interior of the primary separation unit 200 through the exhaust section 103b, and then enter the next gas treatment pipeline.

[0044] The top cover 103a includes a mounting base 103a-1 disposed on the purification chamber 101, a telescopic cylinder 103a-2 disposed on the mounting base 103a-1, and an exhaust top cover 103a-3 disposed on the telescopic end of the telescopic cylinder 103a-2. The telescopic cylinder 103a-2 facilitates the automatic opening of the exhaust top cover 103a-3 on the purification chamber 101, making it convenient for staff to clean the purification chamber 101.

[0045] During operation, a primary separation unit 200 and a secondary separation unit 300 are installed within the purification chamber. Within the primary separation unit 200, the spiral vapor vortex structure of the wastewater separation section 201b, combined with the temperature regulation of the central control layer built into the purification chamber 101, liquefies the water vapor in the mixed liquid, leaving it inside the separation section 201a. Other gases enter the purification chamber from the separation section through the exhaust valve and finally enter the gas treatment channel through the exhaust chamber assembly. When the exhaust chamber assembly finishes venting, the purified liquid enters the secondary separation unit 300 through the connecting pipe between the primary separation unit 200 and the secondary separation unit 300. After filtration and purification, it is discharged from the wastewater treatment end, namely the water outlet pipe 302 set on the purification chamber 101. This process effectively improves the purification rate of gas in wastewater and achieves gas-water separation and purification in the mixed liquid. A pumping power device is connected to the end of the outlet pipe 302 of the secondary separation unit 300. This device can be configured as a water pump. The water pump provides power to promote the flow of the purified liquid in the separation chamber 201a into the secondary separation unit 300 for further filtration and purification. Similarly, a sewage treatment pump is also installed at the front end of the inlet pipe 202 of the purification chamber 101, so that the sewage from the end of the thermal power plant sewage treatment can smoothly enter the chamber unit 100. The water pump and the sewage treatment pump are equipped with control valves. The operator can control the outlet water of the entire steam-water separation and purification device according to the water pump control valve, and control the inlet water of the entire steam-water separation and purification device according to the sewage treatment pump control valve, thereby realizing the inlet and outlet water control of the steam-water separation and purification device and realizing the independent working cycle of sewage treatment inside the device.

[0046] Example 2, referring to Figures 1-10, is the second embodiment of the present invention. This embodiment differs from the first embodiment in that the gas-water separation assembly 201 includes a separation chamber 201a disposed on the pipe installation chamber assembly 102 and connected to the inlet pipe 202, a wastewater separation section 201b disposed on the separation chamber 201a, and a separation water pipe section 201c disposed on the outlet end of the separation chamber 201a and connected to the outlet water filter assembly 303. After the gas-water mixture enters the separation chamber 201a, the central control layer of the purification chamber 101 heats the mixture inside the separation chamber 201a, causing the gas-water mixture to become a mixed gas containing water vapor. After the mixed gas passes through the cyclone treatment of the wastewater separation section 201b, the water vapor is reliquefied into liquid water, and the gas without water vapor overflows from the top of the separation chamber 201a. During the purification process, if the exhaust section 103b continues to emit gas, it means that there is still gas being separated and discharged from the mixed liquid. In this state, the water outlet pipe 201c-1 of the separation chamber remains closed to prevent unpurified liquid in the separation chamber 201a from flowing into the secondary separation unit 300. Conversely, when the exhaust section 103b stops emitting gas, it means that the gas in the mixed liquid has been completely separated and discharged. In this state, the water outlet pipe 201c-1 of the separation chamber is opened. A pumping power device is connected to the end of the outlet pipe 302 of the secondary separation unit 300. This device can be configured as a water pump. The water pump provides power to promote the flow of the purified liquid in the separation chamber 201a into the secondary separation unit 300 for further filtration and purification. Similarly, a sewage treatment pump is also installed at the front end of the inlet pipe 202 of the purification chamber 101, so that the sewage from the end of the thermal power plant sewage treatment can smoothly enter the chamber unit 100. The water pump and the sewage treatment pump are equipped with control valves. The operator can control the outlet water of the entire steam-water separation and purification device according to the water pump control valve, and control the inlet water of the entire steam-water separation and purification device according to the sewage treatment pump control valve, thereby realizing the inlet and outlet water control of the steam-water separation and purification device and realizing the independent working cycle of sewage treatment inside the device.

[0047] Compared to Embodiment 1, the wastewater separation unit 201b further includes an inlet component 201b-1 disposed on the separation chamber 201a, a rotating seat 201b-2 rotatably disposed on the inlet component 201b-1, and a separation component 201b-3 disposed on the rotating seat 201b-2 and rotatably disposed within the separation chamber 201a.

[0048] Furthermore, the water inlet component 201b-1 includes a water inlet cylinder 201b-11 disposed at the water inlet end of the separation chamber section 201a, a separation chamber mounting base 201b-12 disposed on the water inlet cylinder 201b-11, and a vortex-shaped water outlet end seat 201b-13 disposed on the separation chamber mounting base 201b-12. The vortex-shaped water outlet end seat 201b-13 can increase the water pressure entering the separation chamber section 201a from the water inlet component 201b-1, thereby facilitating cyclone separation of the liquid.

[0049] Furthermore, the separator 201b-3 includes a spiral separator blade 201b-31 mounted on the rotating base 201b-2 and rotatably mounted on the separation chamber 201a, and a separator plate 201b-32 mounted on the spiral separator blade 201b-31; a steam liquefaction head m is provided on the side of the separator plate 201b-32 near the water inlet end of the separation chamber 201a. After the gas in the separation chamber 201a passes through the spiral separator blade 201b-31, it rotates and flows at high speed in the separation chamber 201a, becoming small liquid residues in the separation chamber 201a. Small droplets that are not completely separated will also liquefy upon contact with the steam liquefaction head m. The separator 201b-3 ensures that the liquid at the end of the wastewater treatment process in the thermal power plant can be completely separated and remain in the separation chamber 201a.

[0050] Furthermore, the separation chamber 201a includes a separation chamber mounting bracket 201a-1 disposed on the purification chamber body 101, a separation chamber body 201a-2 disposed on the separation chamber mounting bracket 201a-1, and an exhaust valve 201a-3 disposed at the top of the separation chamber body 201a-2. The exhaust valve 201a-3 is connected to the exhaust chamber assembly 103 on the purification chamber body 101.

[0051] Furthermore, the water separation pipeline section 201c includes a separation chamber outlet pipe 201c-1 installed on a single set of separation chamber sections 201a, a separation chamber outlet connecting pipe 201c-2 installed on the separation chamber outlet pipe 201c-1 and connecting multiple sets of separation chamber outlet pipes 201c-1, and a main separation water guide pipe 201c-3 installed on the separation chamber outlet pipe 201c-1; wherein, a separation water outlet valve 201c-11 is installed on the separation chamber outlet pipe 201c-1. The separation chamber outlet connecting pipe 201c-2 can connect multiple sets of separation chamber sections 201a located in the purification chamber 101, thereby realizing unified water output from multiple sets of separation chamber sections 201a. The separation chamber outlet pipe 201c-1 and the separation chamber outlet connecting pipe 201c-2 are connected. When the pumping power device connected to the outlet pipe 302 is working, the water to be filtered inside the first separation unit 200 first passes through the separation chamber outlet connecting pipe 201c-2, then through the collection of the separation chamber outlet connecting pipe 201c-2, and finally through the separation chamber outlet pipe 201c-1 to the main separation water guide pipe 201c-3. The main separation water guide pipe 201c-3 is connected to the inlet end of the outlet filter assembly 303, so that the water in the first separation unit 200 enters the second separation unit 300. The water outlet valve 201c-11 is set with automatic electronic control and is linked with the exhaust section 103b on the exhaust chamber assembly 103. When the exhaust volume of the exhaust section 103b is 0, the water outlet valve 201c-11 is opened; otherwise, the water outlet valve 201c-11 is closed.

[0052] During use, by setting up a primary separation unit and a secondary separation unit in the purification chamber, the water vapor in the mixed liquid is liquefied and retained inside the separation chamber by the spiral cyclone structure of the sewage separation section in the primary separation unit, combined with the temperature regulation of the built-in central control layer of the purification chamber. Other gases enter the purification chamber from the separation section through the gas outlet valve, and finally enter the gas treatment channel through the exhaust chamber assembly. When the exhaust chamber assembly finishes venting, the valve on the separation water pipe section 201c is opened, allowing the purified liquid to enter the secondary separation unit 300. After filtration and purification, it is discharged from the sewage treatment end, that is, from the water outlet pipe 302 set on the purification chamber 101. This process effectively improves the purification rate of gases in sewage. During the purification process, if the exhaust section 103b continuously emits steam, it indicates that there is still gas being separated and discharged from the mixed liquid. In this state, the water outlet pipe 201c-1 of the separation chamber remains closed to prevent unpurified liquid in the separation chamber 201a from flowing into the secondary separation unit 300. Conversely, when the exhaust section 103b stops emitting steam, it indicates that the gas in the mixed liquid has been completely separated and discharged. In this state, the water outlet pipe 201c-1 of the separation chamber opens, allowing the purified liquid in the separation chamber 201a to flow into the secondary separation unit 300 for further filtration and purification. A pumping power device is connected to the end of the outlet pipe 302 of the secondary separation unit 300. This device can be configured as a water pump. The water pump provides power to promote the flow of the purified liquid in the separation chamber 201a into the secondary separation unit 300 for further filtration and purification. Similarly, a sewage treatment pump is also installed at the front end of the inlet pipe 202 of the purification chamber 101, so that the sewage from the end of the thermal power plant sewage treatment can smoothly enter the chamber unit 100. The water pump and the sewage treatment pump are equipped with control valves. The operator can control the outlet water of the entire steam-water separation and purification device according to the water pump control valve, and control the inlet water of the entire steam-water separation and purification device according to the sewage treatment pump control valve, thereby realizing the inlet and outlet water control of the steam-water separation and purification device and realizing the independent working cycle of sewage treatment inside the device.

[0053] The remaining structure is the same as that in Example 1.

[0054] Example 3, referring to Figures 1-10, is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the water filtration assembly 303 includes a filter chamber part 303a disposed on the purification chamber 101, and a filter water inlet part 303b disposed at the water outlet end of the separation chamber water outlet pipe 201c-1 and connected to the water inlet end of the filter chamber part 303a.

[0055] Compared to Embodiment 2, the further embodiment includes a filtered water inlet section 303b, which includes a filtered water inlet main pipe 303b-1 disposed on the outlet end of the separation chamber outlet pipe 201c-1, and a filtered water guide pipe 303b-2 disposed on the filtered chamber body section 303a and connected to the filtered water inlet main pipe 303b-1. The filtered water inlet main pipe 303b-1 can connect multiple filtered chamber bodies 303a, thereby increasing the purified water capacity of this purification device.

[0056] The filter chamber 303a includes a filter chamber mounting bracket 303a-2 mounted on the purification chamber 101, a filter chamber 303a-1 mounted on the filter chamber mounting bracket 303a-2, and a filter screen 303a-3 mounted on the filter chamber 303a-1. The filter screen 303a-3 provides a final physical filtration step for the purified water at the end of the wastewater treatment process in thermal power plants, preventing residual solid particles from entering the purified water in the steam-water purification equipment.

[0057] During use, by setting up a primary separation unit and a secondary separation unit in the purification chamber, the water vapor in the mixed liquid is liquefied and retained inside the separation chamber by the spiral cyclone structure of the sewage separation section in the primary separation unit, combined with the temperature regulation of the built-in central control layer of the purification chamber. Other gases enter the purification chamber from the separation section through the gas outlet valve, and finally enter the gas treatment channel through the exhaust chamber assembly. When the exhaust chamber assembly finishes venting, the valve on the separation water pipe section 201c is opened, allowing the purified liquid to enter the secondary separation unit 300. After filtration and purification, it is discharged from the sewage treatment end, that is, from the water outlet pipe 302 set on the purification chamber 101. This process effectively improves the purification rate of gases in sewage. A pumping power device is connected to the end of the outlet pipe 302 of the secondary separation unit 300. This device can be configured as a water pump. The water pump provides power to promote the flow of the purified liquid in the separation chamber 201a into the secondary separation unit 300 for further filtration and purification. Similarly, a sewage treatment pump is also installed at the front end of the inlet pipe 202 of the purification chamber 101, so that the sewage from the end of the thermal power plant sewage treatment can smoothly enter the chamber unit 100. The water pump and the sewage treatment pump are equipped with control valves. The operator can control the outlet water of the entire steam-water separation and purification device according to the water pump control valve, and control the inlet water of the entire steam-water separation and purification device according to the sewage treatment pump control valve, thereby realizing the inlet and outlet water control of the steam-water separation and purification device and realizing the independent working cycle of sewage treatment inside the device. During the purification process, if the exhaust section 103b continuously emits steam, it indicates that there is still gas being separated and discharged from the mixed liquid. In this state, the water outlet pipe 201c-1 of the separation chamber remains closed to prevent unpurified liquid in the separation chamber 201a from flowing into the secondary separation unit 300. Conversely, when the exhaust section 103b stops emitting steam, it indicates that the gas in the mixed liquid has been completely separated and discharged. In this state, the water outlet pipe 201c-1 of the separation chamber opens, allowing the purified liquid in the separation chamber 201a to flow into the secondary separation unit 300 for further filtration and purification. The filter screen 303a-3 is designed to perform a final physical filtration of the purified water at the end of the wastewater treatment process in thermal power plants, preventing residual solid particles from entering the purified water in the steam-water purification equipment.

[0058] The remaining structure is the same as that in Example 2.

[0059] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A steam-water separation and purification device for the end of wastewater treatment in a thermal power plant, characterized in that: include, The chamber unit (100) includes a purification chamber (101), a pipe installation chamber assembly (102) disposed on the purification chamber (101), and an exhaust chamber assembly (103) disposed on the purification chamber (101); The primary separation unit (200) includes an inlet pipe (202) disposed on the pipe installation chamber assembly (102), a gas-water separation assembly (201) disposed on the inlet pipe (202) and located within the purification chamber (101), and a temperature-controlled inlet pipe (203) disposed on the purification chamber (101); and, The secondary separation unit (300) includes an outlet water filter assembly (303) connected to the gas-water separation assembly (201) and disposed in the purification chamber (101), an outlet water pipe (302) disposed on the pipe installation chamber assembly (102), and a temperature-controlled outlet water pipe (301) disposed on the purification chamber (101); The pipeline installation chamber assembly (102) is provided with an airtightness inspection pipeline (102a) and a chamber partition plate (102b); the primary separation unit (200) and the secondary separation unit (300) are respectively located on both sides of the chamber partition plate (102b); the exhaust chamber assembly (103) includes a top cover (103a) provided on the purification chamber (101) and an exhaust part (103b) provided on the top cover (103a); the top cover (103a) includes a mounting base (103a-1) provided on the purification chamber (101), a telescopic cylinder (103a-2) provided on the mounting base (103a-1), and an exhaust top cover (103a-3) provided at the telescopic end of the telescopic cylinder (103a-2); The gas-water separation assembly (201) includes a separation chamber (201a) disposed on the pipe installation chamber assembly (102) and connected to the inlet pipe (202), a wastewater separation section (201b) disposed on the separation chamber (201a), and a water separation pipe section (201c) disposed on the outlet end of the separation chamber (201a) and connected to the outlet filter assembly (303); the wastewater separation section (201b) includes an inlet component (201b-1) disposed on the separation chamber (201a), a rotating seat (201b-2) rotatably disposed on the inlet component (201b-1), and a separation component (201b-3) disposed on the rotating seat (201b-2) and rotatably disposed within the separation chamber (201a); The water inlet component (201b-1) includes a water inlet cylinder (201b-11) disposed at the water inlet end of the separation chamber (201a), a separation chamber mounting base (201b-12) disposed on the water inlet cylinder (201b-11), and a vortex-shaped water outlet end seat (201b-13) disposed on the separation chamber mounting base (201b-12); the separation component (201b-3) includes a spiral separation blade (201b-31) disposed on the rotating base (201b-2) and rotatably disposed on the separation chamber (201a), and a separation plate (201b-32) disposed on the spiral separation blade (201b-31); a water vapor liquefaction head (m) is disposed on the side of the separation plate (201b-32) near the water inlet end of the separation chamber (201a).

2. The steam-water separation and purification device at the end of wastewater treatment in thermal power plants according to claim 1, characterized in that: The separation chamber (201a) includes a separation chamber mounting frame (201a-1) disposed on the purification chamber body (101), a separation chamber body (201a-2) disposed on the separation chamber mounting frame (201a-1), and an air outlet valve (201a-3) disposed at the top of the separation chamber body (201a-2).

3. The steam-water separation and purification device at the end of wastewater treatment in thermal power plants according to claim 2, characterized in that: The water separation pipeline section (201c) includes a water separation chamber outlet pipe (201c-1) disposed on a single set of the separation chamber sections (201a), a water separation chamber outlet connecting pipe (201c-2) disposed on the water separation chamber outlet pipe (201c-1) and connecting multiple sets of the water separation chamber outlet pipes (201c-1), and a main water separation guide pipe (201c-3) disposed on the water separation chamber outlet pipe (201c-1); wherein, a water separation outlet valve (201c-11) is provided on the water separation chamber outlet pipe (201c-1).

4. The steam-water separation and purification device at the end of wastewater treatment in thermal power plants according to claim 3, characterized in that: The water filtration assembly (303) includes a filter chamber part (303a) disposed on the purification chamber (101) and a filter water inlet part (303b) disposed at the water outlet end of the separation chamber water outlet pipe (201c-1) and connected to the water inlet end of the filter chamber part (303a). The filtered water inlet section (303b) includes a filtered water inlet main pipe (303b-1) disposed on the outlet end of the separation chamber outlet pipe (201c-1), and a filtered water guide pipe (303b-2) disposed on the filtered chamber body section (303a) and connected to the filtered water inlet main pipe (303b-1). The filter chamber body (303a) includes a filter chamber mounting bracket (303a-2) disposed on the purification chamber body (101), a filter chamber (303a-1) disposed on the filter chamber mounting bracket (303a-2), and a filter screen (303a-3) disposed on the filter chamber (303a-1).

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