A cavity type high and low hydraulic cyclone sand settling device

Abstract

The present application relates to a cavity-type high-low hydraulic cyclone sand trap, comprising a water delivery gallery, a central tube, a central cone guide, and a water inlet pipe located in a sand trap, characterized in that: a water inlet guide is provided between the water inlet pipe and the sand trap, a throttle valve capable of regulating fluid flow is provided in the water inlet guide, and a motion component for regulating the opening and closing of the throttle valve is provided on the water inlet guide. Advantages: the opening and closing of the throttle valve changes the flow rate, the flow rate is controlled according to the actual situation, and the expected sand trapping effect is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of sand settling, and in particular, relates to a cavity-type high-low hydraulic cyclone sand settling device. Background Art

[0002] The existing grit trap located in the grit trap works on the principle that after sewage enters the tank body tangentially through the water inlet pipe, a vortex is formed under the restriction of the tank wall due to inertia. The water flow in the outer tank wall area spirals downward, and the direction of the water flow changes after encountering the conical baffle in the center of the grit trap. In the area near the center, the water flow spirals upward, and a "shear zone" is formed at the interface between the upward and downward water flows. In this area, the flow rate is zero. The gravel with a larger specific gravity settles in the sand hopper at the bottom of the tank body, and the sewage flows out from the upper outlet of the central cylinder above the device and enters the subsequent unit through the outlet gallery for the next step of treatment.

[0003] To form a vortex, the flow rate of sewage entering the pool is very critical. However, the daily processing capacity of a sewage treatment plant often does not reach the design value in the early stage of construction. Even if it reaches the design value in the later stage, the daily processing capacity is often unstable. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the defect that the water inlet flow rate cannot be adjusted in the prior art, thereby providing a cavity type high and low hydraulic cyclone sand settling device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A cavity-type high-low hydraulic cyclone sand settling device comprises a water delivery corridor located in a sand settling tank, a central tube located in the middle of the water delivery corridor, a central cone guide member located at the lower end of the central tube, a water inlet pipe for delivering water to the sand settling tank and arranged tangentially to the sand settling tank, and other existing structural components. The invention also comprises a water inlet guider arranged between the water inlet pipe and the sand settling tank, a throttle valve capable of adjusting the flow rate of a fluid is arranged in the water inlet guider, and a motion component for adjusting the opening and closing of the throttle valve is arranged on the water inlet guider to change the flow rate, control the flow rate according to the actual situation, and achieve the expected sand settling effect.

[0007] Furthermore, the water inlet guide is a structure with a grooved fluid channel, the throttle valve is hinged on the inner wall of the water inlet guide, the throttle valve can close the grooved fluid channel, and a motion component for adjusting the opening and closing of the throttle valve is provided on the water inlet guide.

[0008] Furthermore, the motion component includes an arc groove on the water inlet guide for adjusting the opening and closing movement direction of the throttle, a rotatable shift lever, and a driving gear. The driving gear is located on the shift lever, and a linkage rod is provided on one side of the top of the movable end of the throttle. The linkage rod extends out of the arc groove and is provided with a rack that meshes with the driving gear.

[0009] Furthermore, the shift rod extends out of the sand settling tank and is provided with a hand wheel and / or a motor for driving the shift rod to rotate. The shift rod is rotated manually or driven by the motor to rotate, thereby changing the size of the fluid outlet opened by the throttle valve.

[0010] Furthermore, a platform flange plate is provided on the center tube, and support steel frames for maintenance are provided on both sides of the platform flange plate. The support steel frames are fixed on the water delivery corridor. The platform flange plate and the support steel frames constitute a working bridge. The sand lifting pump located in the sand collecting pit at the bottom of the center cone often needs maintenance, so a working bridge is designed. The platform flange plate and the patterned steel plates on both sides thereof form a working bridge that passes through the sand settling tank. A T-shaped overflow port is opened in the center tube to allow the liquid to flow into the water delivery corridor.

[0011] Furthermore, a short-flow prevention guide plate is provided at the outer edge below the water conveyance corridor.

[0012] Furthermore, it also includes a fluidizing ring and a backwashing pipe, the backwashing pipe is connected to the fluidizing ring, and the fluidizing ring is arranged at the bottom of the grit chamber.

[0013] The beneficial effects of the utility model are:

[0014] 1. The platform flange plate and the supporting steel frame form a working bridge, which is convenient for access to workstations and maintenance of the sand pump located in the sand collection pit at the bottom of the center cone;

[0015] 2. Able to adjust the water flow rate, change the flow rate, control the flow rate according to the actual situation, and achieve the expected sand settling effect;

[0016] 3. A T-shaped overflow port is set in the center tube, and the number can be adjusted according to practical needs to quickly discharge the separated water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the structure of the regulating component of an embodiment of the present application;

[0020] Figure 3 is a schematic cross-sectional structure diagram of an embodiment of the present application;

[0021] The reference numerals in the figure are:

[0022] 1. Water delivery gallery, 2. Center tube, 3. Center cone guide, 4. Water inlet pipe, 5. Anti-short flow guide plate, 6. Water inlet guide, 7. Throttle, 8. Arc groove, 9. Shift lever, 10. Drive gear, 11. Linkage rod, 12. Rack, 13. Motor, 14. Platform flange plate, 15. Support steel frame, 16. T-shaped overflow port. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0026] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. Example

[0027] The present embodiment provides a cavity-type high-low hydraulic cyclone sand settling device, comprising a water delivery gallery 1 located in a sand settling tank, a central tube 2 located in the middle of the water delivery gallery 1, a central cone guide member 3 located at the lower end of the central tube 2, a water inlet pipe 4 for delivering water to the sand settling tank and arranged tangentially to the sand settling tank, and other existing structural components; an anti-short flow guide plate 5 is provided at the outer edge below the water delivery gallery 1 to guide the water flow to spiral on the central tube; a water inlet guide 6 is provided between the water inlet pipe 4 and the sand settling tank, a throttle valve 7 capable of adjusting the fluid flow is provided in the water inlet guide 6, a motion component for adjusting the opening and closing of the throttle valve 7 is provided on the water inlet guide 6, and a guide rail is provided between the lower end of the throttle valve 7 and the water inlet guide 6 to change the flow rate, control the flow rate according to the actual situation, and achieve the expected sand settling effect.

[0028] The water inlet guide 6 is a structure with a grooved fluid channel. The throttle valve 7 is hinged on the inner wall of the water inlet guide 6. The throttle valve 7 can close the grooved fluid channel. The water inlet guide 6 is provided with a motion component for adjusting the opening and closing of the throttle valve.

[0029] Specifically, the motion component includes an arc groove 8 on the water inlet guide 6 for adjusting the opening and closing movement direction of the throttle valve 7, a rotatable shift rod 9, and a driving gear 10. The driving gear 10 is located on the shift rod 9. A linkage rod 11 is provided on one side of the top of the movable end of the throttle valve 7. The linkage rod 11 extends out of the arc groove 8 and is provided with an arc-shaped rack 12 meshing with the driving gear 10. Through the meshing of the rack 12 with the driving gear 10, when the driving gear 10 rotates, the position of the rack 12 is changed, and finally the throttle valve 7 is driven to open or close the groove-mounted fluid channel.

[0030] The shift rod 9 extends out of the sand settling tank and is provided with a handwheel or a motor 13 for driving the shift rod 9 to rotate, or a manual and electric combination component for driving the shift rod 9 to rotate. The motor 13 is fixed on the supporting steel beam on the sand settling tank. Manually turning the handwheel or the motor drives the shift rod 9 to rotate, thereby changing the size of the fluid outlet opened by the throttle valve 7.

[0031] A platform flange plate 14 is fixedly connected to the center tube 2, and support steel frames 15 for maintenance are fixedly connected on both sides of the platform flange plate 14. Secondly, the support steel frame 15 is fixed on the water delivery gallery 1. The platform flange plate 14 and the support steel frame 15 constitute a working bridge. A T-shaped overflow port 16 is opened in the center tube 2 to allow liquid to flow into the water delivery gallery 1. There are several T-shaped overflow ports 16, and the number is set according to demand; the sand lifting pump located in the sand collecting pit at the bottom of the center tube 2 often needs maintenance, so a working bridge is designed. The platform flange plate and the patterned steel plates on both sides thereof form a working bridge that penetrates the sand settling tank.

[0032] The fluidizing ring and the backwashing pipe (not shown in the figure) are connected with the backwashing pipe. The fluidizing ring is arranged at the bottom of the grit chamber to prevent the sand in the bottom of the grit chamber from agglomerating and being difficult to be discharged from the grit chamber by the sand lifting pump.

[0033] The working principle of this utility model product:

[0034] After the sewage enters the grit chamber tangentially through the inlet guide, a vortex is formed under the restriction of the chamber wall due to inertia. The water flow in the outer chamber wall area spirals downward, and the direction of the water flow changes after encountering the central cone guide in the grit chamber. In the area near the center, the water flow spirals upward, and a "shear zone" is formed at the interface between the upward and downward water flows. In this area, the flow velocity is zero.

[0035] The gravel with higher specific gravity settles in the sand hopper at the bottom of the pool, and the sewage flows out from the T-shaped overflow port above the device and enters the subsequent unit through the outlet gallery for further treatment.

[0036] The arc groove, rack, shift lever and throttle are linked to control the flow rate according to the actual situation to achieve the expected sand settling effect.

[0037] The sand pump located in the sand collecting pit at the bottom of the center cone often needs maintenance, so a working bridge is designed. The platform flange plate and the patterned steel plates on both sides form a working bridge that runs through the pool.

[0038] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cavity-type high-low hydrocyclone grit trap, comprising a water delivery gallery, a center tube, a center cone guide, and a water inlet pipe located in a grit trap, characterized in that: It also includes a water inlet guider between the water inlet pipe and the sand settling tank, wherein a throttle valve capable of adjusting the fluid flow is arranged inside the water inlet guider, and a motion component for adjusting the opening and closing of the throttle valve is arranged on the water inlet guider.

2. The cavity-type high-low hydrocyclone sand trap according to claim 1, characterized in that: The water inlet guide is a structure with a grooved fluid channel. The throttle is hinged on the inner wall of the water inlet guide. The throttle can close the grooved fluid channel. The water inlet guide is provided with a motion component for adjusting the opening and closing of the throttle.

3. The cavity-type high-low hydrocyclone sand trap according to claim 2, characterized in that: The motion component includes an arc groove on the water inlet guide that is consistent with the opening and closing movement direction of the throttle, a rotatable shift rod, and a driving gear. The driving gear is located on the shift rod. A linkage rod is provided on the top of the movable end of the throttle. The linkage rod extends out of the arc groove and is provided with a rack that meshes with the driving gear.

4. The cavity-type high-low hydrocyclone sand trap according to claim 3, characterized in that: The shift lever extends out of the sand settling tank and is provided with a hand wheel and / or a motor for driving the shift lever to rotate.

5. The cavity-type high-low hydrocyclone sand settling device according to claim 1, characterized in that: It also includes a platform flange plate and a supporting steel frame on the central tube, the supporting steel frames are fixed on both sides of the platform flange plate, the supporting steel frames are fixed on the water delivery gallery, the platform flange plate and the supporting steel frames form a working bridge, and a T-shaped overflow port is opened in the central tube to allow liquid to flow into the water delivery gallery.

6. The cavity-type high-low hydrocyclone sand settling device according to claim 1, characterized in that: An anti-short flow guide plate is provided at the outer edge below the water delivery gallery.

7. The cavity-type high-low hydrocyclone sand settling device according to claim 1, characterized in that: It also includes a fluidizing ring and a backwashing pipeline. The backwashing pipeline is connected to the fluidizing ring, and the fluidizing ring is arranged at the bottom of the grit chamber.

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