Multi-channel dual-redundancy shellfish trap

Abstract

The invention discloses a multi-channel dual-redundancy shellfish trap, and belongs to the technical field of shellfish traps. Comprising two trap units, a switching chamber communicated with the two trap units is arranged between the two trap units, and a double-body single-shaft multi-channel switching mechanism is arranged in the switching chamber; the switching cavity is composed of an upper spherical cavity and a lower spherical cavity, a water inlet communicated with a water inlet pipe is formed in the bottom of the lower spherical cavity, connectors a communicated with water chambers of the two trap units are formed in the left side and the right side of the lower spherical cavity, and connectors b communicated with filtering chambers of the two trap units are formed in the left side and the right side of the upper spherical cavity. A water outlet communicated with the water outlet pipe is formed in the rear side of the upper spherical cavity. The switching chamber is compact in structure and high in integration level, the requirement for on-site installation space limitation is completely met, and the flexibility of equipment layout is improved; the overall occupied space of the dual-redundancy filter system is effectively reduced, and meanwhile the reliability and filtering performance of fluid switching are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of shellfish catchers, and in particular to a multi-channel dual-redundancy shellfish catcher. Background Art

[0002] In water treatment and industrial circulating water systems (such as power plant cooling water systems and chemical water supply and drainage systems), shellfish, algae, and suspended impurities can easily adhere to or enter pipes and equipment, causing problems such as flow blockage, equipment wear, and reduced heat exchange efficiency. In severe cases, this can cause system downtime for maintenance, resulting in significant economic losses. Therefore, shellfish traps, as key filtration equipment, are widely used in these scenarios. Their main function is to intercept impurities such as shellfish and algae in the water through the filtration unit, ensuring the safe and stable operation of subsequent systems.

[0003] As industrial systems continue to increase their requirements for continuous operation reliability, traditional shellfish traps have gradually exposed many technical defects and are unable to meet actual application needs. The specific problems are as follows:

[0004] Insufficient redundancy: When the filter unit needs to be flushed, replaced or repaired due to the single-channel design, the entire collector must be stopped, resulting in a cutoff of the downstream system and seriously affecting the continuity of industrial production.

[0005] Poor adaptability and maintenance: The external dimensions are not optimized, the volume is large, and the compatibility with the on-site space and pipeline layout is poor. It is difficult to install and difficult to adapt to the narrow installation space.

[0006] Therefore, it is necessary to develop a shellfish trap with high reliability, redundant switching, compact structure, adjustable sealing, strong adaptability and efficient operation. Therefore, we developed a multi-channel dual-redundant shellfish trap. Summary of the Invention

[0007] The object of the present invention is to provide a multi-channel dual-redundant shellfish trap to solve the existing problems.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A multi-channel dual-redundant shellfish trap comprises two trap units, a switching chamber communicating with the two trap units is provided between the two trap units, and a dual-body single-axis multi-channel switching mechanism is provided in the switching chamber;

[0010] The switching chamber consists of two spherical cavities, one above the other. The bottom of the lower spherical cavity is provided with a water inlet connected to the water inlet pipe. Interfaces a connecting the water chambers of the two collector units are opened on the left and right sides of the lower spherical cavity. Interfaces b connecting the filter chambers of the two collector units are opened on the left and right sides of the upper spherical cavity. A water outlet connected to the water outlet pipe is provided on the rear side of the upper spherical cavity.

[0011] The double-body single-shaft multi-channel switching mechanism comprises a rotating shaft vertically inserted into the switching chamber, and two sets of valve petals are fixedly arranged on the rotating shaft, and the two sets of valve petals are respectively located in two spherical cavities of the switching chamber, and the two sets of valve petals are respectively used for controlling the opening and closing of the interfaces a and b.

[0012] Further, the front sides of the upper and lower spherical cavities of the switching chamber are respectively provided with manholes, and the manhole ends are provided with plugs through flanges.

[0013] Further, the trap unit comprises a cylinder, the inside of the cylinder is divided into a water chamber on the lower side and a filter chamber on the upper side by a horizontally arranged water distribution plate, a filter core assembly is arranged in the filter chamber, and a through hole is formed in the water distribution plate and communicates the filter core inside of the water chamber and the filter chamber.

[0014] Further, an executing mechanism for driving the rotation of the rotating shaft is arranged at the upper end of the rotating shaft, and when the rotating shaft drives the rotation of the two sets of valve petals, three states of "the interface of the left trap unit is closed and the interface of the right trap unit is opened", "the interface of the right trap unit is closed and the interface of the left trap unit is opened", and "the interfaces of the right trap unit and the left trap unit are simultaneously opened" can be realized synchronously.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] The switching chamber of the present application adopts a series structure of upper and lower spherical cavities, has compact structure and high integration, the upper cavity is communicated with the filter chamber of the trap unit, the lower cavity is communicated with the water chamber, the switching chamber is embedded between the two trap units, the water inlet and the water outlet of the two trap units are integrated on one switching chamber; the switching chamber has a gourd shape, the water inlet and the water outlet are integrally processed on the switching chamber after being separately cast, combined with the optimized design of the switching chamber, the space limitation of the site installation is completely met, the flexibility of the equipment layout is improved; the overall occupied space of the double-redundancy filter system is effectively reduced, and the reliability of fluid switching and the filtering performance are ensured.

[0017] The double-body single-shaft multi-channel switching mechanism of the present application drives the synchronous action of the two sets of valve petals through one rotating shaft, can realize the simultaneous closing or opening of the water chamber channel and the filter chamber channel of one trap unit, avoids the out-of-sync problem caused by the traditional separate driving; BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the present application;

[0019] Figure 2 It is a front view of the present application;

[0020] Figure 3 It is a top view of the present application;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the present invention;

[0023] Figure 6 It is a rear view of the present invention;

[0024] In the figure: switching chamber 1; collector unit 2; multi-channel switching mechanism 3; inspection manhole 4; actuator 5; water inlet 6; water outlet 7; side panel 8; top panel 9; bottom panel 10; flange 11; water distribution plate 21; water chamber 22; filter chamber 23; sewage pipe 24; rotating shaft 31; valve disc 32; partition plate 101. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0028] Example

[0029] like Figures 1-6The present embodiment provides a multi-channel dual-redundant shellfish catcher, comprising two catcher units 2, a switching chamber 1 connected to the two catcher units 2 is provided in the middle, and a dual-body single-axis multi-channel switching mechanism 3 is provided in the switching chamber 1; it also includes an outer shell, the outer shell comprises front and rear side plates 8, a top plate 9 and a bottom plate 10, the side plates 8 are provided on the front and rear sides of the switching chamber 1, the left and right ends of the side plates 8 are welded to the outer shells of the two catcher units 2, the top of the side plates 8 are welded to the top plate 9, and the bottom of the side plates 8 are welded to the bottom plate 10, through holes are opened on the top plate 9 at the corresponding positions of the cylinders of the two catcher units 2, a flange 11 is provided around the head of the catcher unit 2 on the through hole, the bottom plate 10 is welded to the catcher unit and the bottom of the switching chamber, and a through hole for the water inlet is opened in the middle.

[0030] The switching chamber 1 includes two upper and lower spherical cavities, and a partition plate 101 is provided between the upper and lower spherical cavities to divide the switching chamber into two independent cavities. The switching chamber 1 is in the shape of a gourd and is integrally embedded between the two collector units 2. A water inlet 6 is provided at the bottom of the lower spherical cavity to connect to the water inlet pipe, and interfaces a are provided on the left and right sides of the lower spherical cavity to connect to the water chambers 22 of the two collector units 2. Interfaces b are provided on the left and right sides of the upper spherical cavity to connect to the filter chambers 23 of the two collector units 2, and a water outlet 7 is provided on the rear side of the upper spherical cavity to connect to the water outlet pipe;

[0031] The dual-body, single-axis, multi-channel switching mechanism 3 includes a rotating shaft 31 vertically inserted into the switching chamber 1. The rotating shaft 31 passes through a through-hole formed in the partition plate 101 between the upper and lower spherical chambers. Two sets of valve flaps 32 are fixedly mounted on the rotating shaft 31. These two sets of valve flaps 32 are driven by the same rotating shaft 31. The two sets of valve flaps 32 are located in the upper and lower spherical chambers of the switching chamber 1, respectively, and are used to control the opening and closing of port a and port b, respectively. The valve flaps 32 are planar in shape, similar to the flaps of a butterfly valve.

[0032] The front sides of the upper and lower spherical cavities of the switching chamber 1 are both provided with inspection manholes 4, and the ends of the inspection manholes 4 are provided with blocking covers through flanges.

[0033] The collector unit 2 includes a cylinder, the interior of which is divided into a lower water chamber 22 and an upper filter chamber 23 by a horizontally arranged water dividing plate 21. A filter element assembly is arranged in the filter chamber 23, and a through hole is opened on the water dividing plate to connect the water chamber and the interior of the filter element in the filter chamber.

[0034] An actuator 5 with a handwheel mechanism is provided at the upper end of the rotating shaft 31 to drive its rotation. When the rotating shaft 31 rotates and drives the two sets of valve flaps 32 to rotate, three states can be simultaneously realized: "the left collector unit interface is closed and the right collector unit interface is opened", "the right collector unit interface is closed and the left collector unit interface is opened", and "the right collector unit interface and the left collector unit interface are opened at the same time".

[0035] A sealing assembly is provided between the valve flap 32 and the interface with the collector unit 2. When the collector unit interface requires sealing, in addition to the sealing force generated by the actuator driving the valve flap, the water pressure on the back of the valve flap also acts as a shutoff force when the collector unit is in operation. When the dual-body, single-axis, multi-channel switching mechanism 3 closes one of the collector units, the sealing force of the valve flap is derived from two sources: the driving force generated by its own drive mechanism and the reverse force exerted on the valve flap by the opposite water pressure. The higher the internal pressure of the device, the greater the reverse force.

[0036] In this embodiment, the dual-body single-axis multi-channel switching mechanism 3 requires three operating points during the operation of the equipment, namely, the upper and lower interfaces of the left collector unit are closed at the same time, the upper and lower interfaces of the right collector unit are closed at the same time, and the upper and lower interfaces of the two collector units are opened at the same time when they are located between the left collector unit and the right collector unit.

[0037] In this embodiment, the switching chamber 1 is integrally embedded between the two collector units 2 , and the switching chamber 1 is gourd-shaped, which improves the flexibility of the equipment layout.

[0038] In this embodiment, the dual-body single-axis multi-channel switching mechanism 3 drives the two sets of valve flaps to move synchronously through the rotating shaft, which can realize the simultaneous closing or opening of the two collector unit channels, avoiding the switching asynchronization problem caused by traditional split drive; the precise adjustment of the actuator can ensure the stable switching of the three key positions of the left collector unit channel closing, the right collector unit channel closing and the middle position (the two collector unit channels are opened at the same time), thereby meeting the reliable isolation requirements of the dual collector unit channels.

Claims

1. A multi-channel dual-redundant shellfish catcher, characterized in that: It includes two collector units, a switching chamber connected to the two collector units is provided between the two collector units, and a double-body single-axis multi-channel switching mechanism is provided in the switching chamber; The switching chamber includes two upper and lower spherical cavities. The bottom of the lower spherical cavity is provided with a water inlet connected to the water inlet pipe. The left and right sides of the lower spherical cavity are provided with interfaces a connected to the water chambers of the two collector units. The left and right sides of the upper spherical cavity are provided with interfaces b connected to the filter chambers of the two collector units. The rear side of the upper spherical cavity is provided with a water outlet connected to the water outlet pipe. The dual-body single-axis multi-channel switching mechanism includes a rotating shaft vertically inserted inside the switching chamber, and two sets of valve flaps are fixedly arranged on the rotating shaft. The two sets of valve flaps are respectively located in the two spherical cavities of the switching chamber, and the two sets of valve flaps are respectively used to control the opening and closing of interface a and interface b.

2. A multi-channel dual-redundant shellfish trap according to claim 1, characterized in that: The front sides of the upper and lower spherical cavities of the switching chamber are both provided with inspection manholes, and the ends of the inspection manholes are provided with blocking covers through flanges.

3. A multi-channel dual-redundant shellfish trap according to claim 1, characterized in that: The collector unit includes a cylinder, the interior of the cylinder is divided into a water chamber on the lower side and a filter chamber on the upper side by a horizontally arranged water dividing plate, a filter element assembly is arranged in the filter chamber, and a through hole connecting the water chamber and the interior of the filter element in the filter chamber is opened on the water dividing plate.

4. A multi-channel dual-redundant shellfish trap according to claim 1, characterized in that: An actuator is provided at the upper end of the rotating shaft for driving the rotation thereof. When the rotating shaft rotates and drives the two sets of valve discs to rotate, three states can be simultaneously realized: "the left collector unit interface is closed and the right collector unit interface is opened", "the right collector unit interface is closed and the left collector unit interface is opened", and "the right collector unit interface and the left collector unit interface are opened at the same time".

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