Constant-temperature mixing device for circulating water and sewage water

By designing a constant temperature mixing device for circulating water and sewage discharge, the threaded sheet and through-hole structure are used to form vortex, increasing the mixing time between hot water and cold water, solving the problem of uneven mixing caused by small internal space of the gate valve, and improving the effect of constant temperature water.

CN120459867APending Publication Date: 2025-08-12HUANENG POWER INT CO LTD DEZHOU POWER PLANT
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Patent Information

Application Number
CN202510373518.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

The internal space of the existing gate valve is small, and it is difficult for hot and cold water to be fully mixed in a smaller space, resulting in the temperature of some water flow not meeting the standard, affecting the constant temperature water effect.

Method used

A constant temperature mixing device for circulating water and sewage discharge is designed, including an adjustment component connecting the assembly and the inner wall, and the threaded sheet and through-hole structure are used to guide the water flow to form a vortex, increasing the mixing time and uniformity, and performing secondary mixing in the flange tube after preliminary mixing through the pump body.

Benefits of technology

Effectively prevent some water flow from meeting the temperature standard, improve the mixing effect of constant temperature water, ensure uniform water temperature, and avoid the deterioration of constant temperature water effect caused by uneven mixing.

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Abstract

The invention discloses a constant-temperature mixing device for circulating water and sewage water. The constant-temperature mixing device comprises a connecting assembly, the adjusting assembly is arranged on the inner wall of the connecting assembly and comprises a threaded sheet and a through hole formed in the middle of the threaded sheet; an inlet end and an outlet end with the diameter smaller than that of the inlet end are arranged on the two sides of the through hole respectively. Hot water and cold water can flow into the flange pipe after being preliminarily mixed through the pump body, and are guided by the threaded piece to be secondarily mixed in the flange pipe, so that the mixing time of the hot water and the cold water is prolonged, and the situation that the constant-temperature water acting effect is affected due to the fact that the temperature of part of water flow does not reach the standard due to insufficient mixing is prevented.
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Description

Technical Field

[0001] The invention relates to the field of sewage treatment, in particular to a circulating water and sewage constant temperature mixing device. Background Art

[0002] In the circulating water and wastewater concentration treatment process, pretreatment is a key step in purifying and removing hardness from the circulating water. It generally employs processes such as coagulation, softening, and clarification. Temperature fluctuations are a significant factor affecting clarification effectiveness in this process. In pretreatment processes using aluminum salt coagulants, temperature fluctuations exceeding 1°C / hour can cause significant pool turnover.

[0003] Especially as the water temperature rises, some areas of the clarifier may experience hot water at the bottom and cold water at the top. Water temperature affects water density, and the hot water disrupts the equilibrium of the settling area within the clarifier, causing the upper cold water to sink and flow back, while the lower hot water rapidly flows upward, creating significant disturbances. Mud particles are swept into the upper clear water area before they settle, causing the clarifier to flip. When the temperature changes at a higher rate, even with the use of iron salt coagulants, it becomes difficult to control flipping.

[0004] Therefore, in order to control the occurrence of pool overturning, a pneumatic three-way gate valve is usually installed on the pipeline at the water intake point, and the two water inlets of the three-way gate valve are connected to the hot water pipeline and the cold water pipeline respectively. By adjusting the gate valve, the hot water and cold water can be mixed into constant temperature water. The direction of the water flow is stabilized, and the clarifier will not overturn.

[0005] However, the internal space of the existing gate valve is small, and it is difficult to repeatedly mix hot water and cold water in a small space, which easily leads to uneven mixing. As a result, the water temperature of some water flows cannot reach the specified temperature, resulting in a poor constant temperature water effect. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is that the internal space of the existing gate valve is small, and it is difficult to repeatedly mix hot water and cold water in a small space, which easily leads to uneven mixing. In this way, the water temperature of some water flows cannot reach the specified temperature, resulting in a deterioration in the constant temperature water effect.

[0007] The above technical problems are solved by the following technical solutions: The present invention proposes a circulating water and sewage constant temperature mixing device, which includes a connecting component; and

[0008] The adjusting component arranged on the inner wall of the connecting component comprises a threaded piece and a through hole opened in the middle of the threaded piece; wherein,

[0009] An inlet end and an outlet end with a diameter smaller than that of the inlet end are respectively provided on both sides of the through hole.

[0010] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the connecting assembly includes a flange pipe, a clamping block arranged on the inner wall of the flange pipe, and a limiting block arranged on the inner wall of the flange pipe.

[0011] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: a fixing ring is provided at one end of the threaded piece, and the fixing ring is engaged with the middle position of the clamping block.

[0012] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: a movable ring is provided at one end of the threaded piece away from the fixed ring, and the outer wall of the movable ring is slidably connected to the inner wall of the flange pipe.

[0013] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the diameter of the fixed ring is smaller than the diameter of the movable ring, and a water groove is provided at one end of the movable ring.

[0014] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the through hole is provided with a plurality of edges and corners.

[0015] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the outer wall of the threaded sheet is slidably connected to the inner wall of the flange pipe.

[0016] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: an extraction device is connected to one side of the connecting component, and the extraction device includes a pump body, a first water inlet opened on one side of the pump body, a second water inlet opened at the bottom of the pump body, a water outlet opened on the outer wall of the pump body and located opposite to the first water inlet, a moving rod connected to the top of the pump body, and a movable block arranged at the bottom of the moving rod.

[0017] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the outer wall of the movable block is in contact with the inner wall of the pump body.

[0018] In a preferred embodiment of the circulating water and sewage constant temperature mixing device of the present invention: the outer wall of the flange pipe is connected to the outer wall of the pump body located on the water outlet side.

[0019] The beneficial effect of the present invention is that after the hot water and the cold water are initially mixed through the pump body, they will flow into the flange pipe, and the threaded sheet will guide them to undergo secondary mixing in the flange pipe, thereby increasing the mixing time of the hot water and the cold water, and preventing the occurrence of insufficient mixing, resulting in the temperature of some water flows not meeting the standard and affecting the effect of the constant temperature water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0021] Figure 1 Shows the overall structural diagram;

[0022] Figure 2 shows a structural diagram of the connection components;

[0023] Figure 3 A structural diagram of an embodiment of an adjustment component for multiple viewing angles is shown;

[0024] Figure 4 A structural diagram of a second embodiment of an adjustment component for multiple viewing angles is shown;

[0025] Figure 5 A structural diagram showing a third embodiment of an adjustment assembly for multiple viewing angles;

[0026] Figure 6 A cross-sectional view of the extraction device is shown. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0028] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0029] Reference Figure 1 、 2 , 3 and 6, this embodiment provides a circulating water and sewage constant temperature mixing device, including

[0030] The connecting assembly 100 includes a flange pipe 101, a clamping block 102 arranged on the inner wall of the flange pipe 101, and a limit block 103 arranged on the inner wall of the flange pipe 101, wherein flange plates are arranged on both sides of the flange pipe 101, and the flange pipe can be installed on other components by bolts.

[0031] It should be noted that if Figure 2 As shown, two symmetrical limiting blocks 103 are provided on the same side of the flange pipe 101, and their function is to clamp components.

[0032] The adjustment component 200 arranged on the inner wall of the connecting component 100 includes a threaded piece 201 and a through hole 204 opened in the middle position of the threaded piece 201. It should be noted that the threaded piece 201 is made of spring steel and can be compressed and extended.

[0033] An inlet end 202 and an outlet end 203 having a diameter smaller than that of the inlet end 202 are respectively provided on both sides of the through hole 204, wherein the through hole 204 is circular in shape. Figure 3 As shown, the diameter of the through hole 204 gradually decreases between the inlet end 202 and the outlet end 203 .

[0034] It should be noted that when water flows into the through hole 204, because the thread piece 201 is threaded, it will affect the direction of the water flow, so that the water flow moves with the thread piece 201, so that the water flow will form a uniform and stable vortex. When the flow rate of the water flow is too large, because the closer the thread piece 201 is to the outlet end 203, the larger its area, the resistance of the water flow will increase. At this time, the water flow will push the thread piece 201, causing the thread piece 201 to gradually stretch, so that the passing space of the thread piece 201 will increase, enabling a large flow of water to pass through the thread piece 201 faster.

[0035] A fixing ring 205 is provided at one end of the threaded piece 201, and the fixing ring 205 is engaged in the middle position of the clamping block 102. As mentioned above, two symmetrical limit blocks 103 are provided on the same side of the flange pipe 101, and the fixing ring 205 is located between the two limit blocks 103.

[0036] A movable ring 206 is provided at one end of the threaded piece 201 away from the fixed ring 205, and the outer wall of the movable ring 206 is slidably connected to the inner wall of the flange pipe 101. When the water flow is too large, the movable ring 206 will be pushed to move, and the movable ring 206 will pull the threaded piece 201 to move.

[0037] The diameter of the fixed ring 205 is smaller than that of the movable ring 206. A water groove 207 is provided at one end of the movable ring 206. The area of the movable ring 206 can be better pushed by the water flow. In this way, when the water flow moves, the passing space of the threaded piece 201 can be adjusted in real time according to the size of the water flow.

[0038] It should be noted that, in order to prevent the moving ring 206 from excessively affecting the flow of water, a number of water passages 207 are provided on the moving ring 206 to reduce the resistance of the moving ring 206 to the water flow.

[0039] The outer wall of the threaded piece 201 is slidably connected to the inner wall of the flange pipe 101. When the water flows through the flange pipe 101, it will be affected by the threaded piece 201 to generate a vortex, thereby mixing the water flow in the flange pipe 101. At the same time, when the water flow is too large, the water flow will push the threaded piece 201 to move, thereby increasing the passing space of the threaded piece 201 and then improving the passing rate of the threaded piece 201.

[0040] One side of the connecting assembly 100 is connected to an extraction device 300, which includes a pump body 301, a first water inlet 302 opened on one side of the pump body 301, a second water inlet 303 opened at the bottom of the pump body 301, a water outlet 304 opened on the outer wall of the pump body 301 and located opposite to the first water inlet 302, a moving rod 305 connected to the top of the pump body 301 and a movable block 306 arranged at the bottom of the moving rod 305, the outer wall of the movable block 306 is in contact with the inner wall of the pump body 301, wherein the moving rod 305 can be connected to a pneumatic device, and the pneumatic device can be used to adjust the height of the moving rod 305 in the pump body 301, thereby driving the movable block 306 to move, as shown in FIG. Figure 6 As shown, the movable block 306 is set at the narrow part of the pump body 301. When the movable block 306 moves, the passing space at the narrow part of the pump body 301 will be changed, and the first water inlet 302 and the second water inlet 303 are connected to the hot water pipe and the cold water pipe respectively. When the passing space at the narrow part of the pump body 301 changes, it will affect the flow of hot water and cold water entering the water outlet 304, so the flow of constant temperature water can be adjusted in this way.

[0041] The outer wall of the flange pipe 101 is connected to the outer wall of the pump body 301 on the side of the water outlet 304. After the hot water and cold water are initially mixed in the pump body 301, they flow into the flange pipe 101. At this time, the constant temperature water is affected by the threaded piece 201 to generate a vortex, thereby further mixing the hot water and the cold water. This can prevent part of the water flow from failing to reach the appropriate temperature and affecting the constant temperature water effect. At the same time, when the water flow is too large, the water flow will push the threaded piece 201 to move, thereby increasing the passing space of the threaded piece 201 and then improving the passing rate of the threaded piece 201.

[0042] As an optional embodiment, different from the previous embodiment, a through hole 204 of another shape is provided.

[0043] The through hole 204 is provided with a plurality of edges and corners, wherein Figure 4 As shown, the through hole 204 is hexagonal in shape, which increases the edges and corners of the through hole 204. Because of the edges and corners of the through hole 204, stronger boundary layer separation will be generated when the water flows through the edges and corners, forming more complex small-scale vortices, increasing the turbulence of the water flow, and making the stirring and mixing effect more intense, thereby improving the mixing effect of hot water and cold water.

[0044] As an optional embodiment, different from the previous embodiment, a through hole 204 of another shape is provided.

[0045] like Figure 5 As shown, the through hole 204 is elliptical in shape. Compared with the circular through hole 204, the difference between the major axis and the minor axis of the flow channel section changes the water flow velocity distribution, causing the vortex rotation axis to shift, and can regulate the spiral upward trajectory of the water flow, which is more suitable for pipeline systems that require directional guidance of water flow.

[0046] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A circulating water and sewage constant temperature mixing device, characterized by: include, a connection assembly (100); and, The adjusting component (200) is arranged on the inner wall of the connecting component (100), and comprises a threaded piece (201) and a through hole (204) opened in the middle position of the threaded piece (201); wherein, An inlet end (202) and an outlet end (203) having a diameter smaller than that of the inlet end (202) are respectively provided on both sides of the through hole (204).

2. The circulating water and sewage constant temperature mixing device according to claim 1, characterized in that: The connecting assembly (100) comprises a flange pipe (101), a clamping block (102) arranged on the inner wall of the flange pipe (101), and a limiting block (103) arranged on the inner wall of the flange pipe (101).

3. The circulating water and sewage constant temperature mixing device according to claim 2, characterized in that: A fixing ring (205) is provided at one end of the threaded piece (201), and the fixing ring (205) is engaged with the middle position of the clamping block (102).

4. The circulating water and sewage constant temperature mixing device according to claim 3, characterized in that: A movable ring (206) is provided at one end of the threaded piece (201) away from the fixed ring (205), and the outer wall of the movable ring (206) is slidably connected to the inner wall of the flange pipe (101).

5. The circulating water and sewage constant temperature mixing device according to claim 4, characterized in that: The diameter of the fixed ring (205) is smaller than that of the movable ring (206), and a water channel (207) is provided at one end of the movable ring (206).

6. The circulating water and sewage constant temperature mixing device according to any one of claims 1 to 5, characterized in that: The through hole (204) is provided with a plurality of corners.

7. The circulating water and sewage constant temperature mixing device according to claim 5, characterized in that: The outer wall of the threaded piece (201) is slidably connected to the inner wall of the flange pipe (101).

8. The circulating water and sewage constant temperature mixing device according to any one of claims 2, 3, 4 and 5, characterized in that: One side of the connecting assembly (100) is connected to an extraction device (300), and the extraction device (300) includes a pump body (301), a first water inlet (302) opened on one side of the pump body (301), a second water inlet (303) opened at the bottom of the pump body (301), a water outlet (304) opened on the outer wall of the pump body (301) and located opposite to the first water inlet (302), a moving rod (305) connected to the top of the pump body (301), and a movable block (306) arranged at the bottom of the moving rod (305).

9. The circulating water and sewage constant temperature mixing device according to claim 8, characterized in that: The outer wall of the movable block (306) contacts the inner wall of the pump body (301).

10. The circulating water and sewage constant temperature mixing device according to claim 9, characterized in that: The outer wall of the flange pipe (101) is connected to the outer wall of the pump body (301) located on the side of the water outlet (304).