CN218689555U - Device for preventing resin leakage during failure of row device in positive regeneration tower - Google Patents

Abstract

The utility model relates to a device of preventing resin leakage during row's device trouble in positive regenerator tower of technical field of resin regenerator tower, including positive regenerator tower and set up the well row's device in positive regenerator tower, well row's device includes female pipe and a plurality of branch pipes with female union coupling, well row's female pipe of device extends to outside the positive regenerator tower and with positive regenerator tower lateral wall fixed connection, well row's female pipe outer end is provided with the leak protection filter screen, the leak protection filter screen comprises closely straining the unit and the colating unit that is located closely straining the unit both sides, well row's female pipe outer end is connected with into regeneration liquid pipeline and well row's pipeline, when arranging the device trouble in the positive tower, can be timely, prevent the further leakage of resin effectively, avoid the economic loss that the large amount of leakage of resin arouses, it descends and environmental pollution to mix bed cycle system water yield.

Description

Device for preventing resin leakage during failure of row device in positive regeneration tower

Technical Field

The utility model relates to a device that prevents resin leakage when arranging device trouble in positive regeneration tower belongs to the technical field of resin regeneration tower.

Background

A condensate fine treatment system of a certain power plant adopts a medium-pressure condensate mixed bed system, a three-tower method external regeneration system is adopted after mixed bed resin fails, and the resin regeneration system consists of a separation tower, a negative regeneration tower, a positive regeneration tower, a compressed air storage tank, a wastewater resin catcher and an acid-base metering unit.

After the separation tower positive resin is fed into Yang Da, the positive resin is backwashed by bottom air inlet scrubbing and bottom water inlet until the outlet water is clear. Then acid regeneration, replacement and rinsing are carried out from the upper part of the resin, after the negative tower resin is qualified in regeneration, the negative resin is sent to Yang Da to be mixed with the positive resin to form the spare resin.

In the regeneration process of the resin, due to the strong corrosivity of hydrochloric acid, the Yang Da middle discharge device is easy to corrode as an acid inlet carrier, a joint of a branch pipe and a main pipe of the middle discharge device is easy to open to form a crack, and the generated crack not only enables the regenerated acid liquid to be distributed unevenly, but also can leak complete resin particles, so that a large amount of resin in a regeneration tower overflows through the crack of the middle discharge device and is lost in the regeneration process. The prior art has no spare parts to replace the discharging device in the positive tower, and can not intercept resin when being corroded and damaged, thereby causing great leakage of the resin, economic loss, serious reduction of water production amount in a mixed bed period and environmental pollution accidents.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a device for preventing resin leakage when arranging the device trouble in the positive regeneration tower.

The technical scheme of the utility model as follows:

the utility model provides a device of preventing resin leakage during calandria device trouble in positive regenerator, include the positive regenerator and set up in well row's device in the positive regenerator, well row's device including female pipe and a plurality of with female pipe flange joint's branch pipe, well row's female pipe of device extends to the positive regenerator outer and with positive regenerator lateral wall fixed connection, well row's female pipe outer end is provided with the leak protection filter screen, the leak protection filter screen is by closely straining the unit and being located closely strain the colating unit of unit both sides and constitute, well row's device female pipe outer end is connected with into regeneration liquid pipeline and well row pipeline.

Wherein, close straining the unit and include close filter screen and close filter screen frame, the coarse filtration unit includes coarse strainer and coarse filter screen frame.

Wherein, the thick filter screen frame is provided with an embedded groove towards one side of the dense filter screen frame.

The outer wall of the circumference of the sealing and filtering screen frame is provided with a sealing convex edge, and the outer side of the sealing convex edge is provided with a U-shaped sealing ring in a nested mode.

And a plurality of flange bolt holes are distributed in the circumferential annular row of the coarse filter screen frame.

Wherein the aperture of the dense filter screen is less than 600 μm, and the coarse filter screen is a 316L stainless steel filter screen.

Wherein, a regeneration liquid pipe valve and a middle drain pipe valve are respectively arranged on the regeneration liquid pipeline and the middle drain pipeline.

The utility model discloses following beneficial effect has:

the utility model discloses arrange the female outer end department of pipe of device in positive tower and add a three layer construction's filter screen, when arranging the device trouble in positive tower, can in time, prevent the further leakage of resin effectively, avoid the resin to leak economic loss that arouses in a large number, mix bed cycle system water yield decline and environmental pollution.

Drawings

FIG. 1 is a schematic view of a positive regeneration tower of the present invention;

FIG. 2 is a schematic view of the top view of the apparatus for preventing resin leakage when the row apparatus in the solar regeneration tower fails;

FIG. 3 is a schematic view of the lateral cross-section structure of the leakage-proof strainer of the present invention in a combined state;

figure 4 is the utility model discloses leak protection filter screen separation state side direction cross-section structure sketch map.

The reference numbers in the figures denote:

1-positive regeneration tower, 2-middle row device, 21-mother pipe, 22-branch pipe, 3-leakproof filter screen, 31-dense filter unit, 311-dense filter screen, 312-dense filter screen frame, 313-sealed convex edge, 32-coarse filter unit, 321-coarse filter screen, 322-coarse filter screen frame, 323-embedded groove, 324-flange bolt hole, 33-U-shaped sealing ring, 4-inlet regeneration liquid pipeline, 41-inlet regeneration liquid pipe valve, 5-middle row pipeline and 51-middle row pipe valve.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-4, a device for preventing resin leakage when a row device in a positive regeneration tower fails comprises a positive regeneration tower 1 and a middle row device 2 arranged in the positive regeneration tower 1, wherein the middle row device 2 comprises a main pipe 21 and a plurality of branch pipes 22 in flange connection with the main pipe 21, the main pipe 21 of the middle row device 2 extends out of the positive regeneration tower 1 and is fixedly connected with the side wall of the positive regeneration tower 1, a leakage-proof filter screen 3 is arranged at the outer end of the main pipe 21 of the middle row device 2, the leakage-proof filter screen 3 is composed of a dense filter unit 31 and rough filter units 32 positioned at two sides of the dense filter unit 31, the dense filter unit 31 mainly plays a role in intercepting and filtering resin particles, and the rough filter units 32 mainly serve as a support framework to protect the intermediate dense filter unit 31 and prevent the dense filter unit 31 from being broken during operation; two groups of coarse filtration units 32 are arranged at two sides of the dense filtration unit 31, because the flow direction of the fluid in the pipeline is not used in different working modes, specifically, the flow directions in the regeneration liquid state and the middle discharge state are opposite, the coarse filtration units 32 can play an effective supporting role on the dense filtration unit 31 in two states;

specifically, the dense filter unit 31 comprises a dense filter screen 311 and a dense filter screen frame 312, the coarse filter unit 32 comprises a coarse filter screen 321 and a coarse filter screen frame 322, the aperture of the dense filter screen 311 is smaller than 600 μm, and the coarse filter screen 321 is a 316L stainless steel filter screen;

because the aperture of the middle dense filter screen 311 is smaller than the size of the resin particles, the resin leaked through the middle drainage device 2 can be intercepted by the filter screen and can not leak from the middle drainage pipe, but when the resin is regenerated, yang Da enters air, is scrubbed, drained and regenerated acid liquid can normally pass through, and the purposes of normally regenerating and preventing the resin from leaking are achieved;

the coarse filter screen frame 322 is provided with an embedding groove 323 towards one side of the dense filter screen frame 312, after the coarse filter screen frames 322 on the two sides are closed, the embedding grooves 323 on the two sides enclose to form a containing cavity for containing the dense filter unit 31, and the mounting structure can well protect the built-in dense filter unit 31 and can reduce the distance between the coarse filter screen 321 and the dense filter screen 311, so that the coarse filter screen 321 is better close to and supported by the dense filter screen 311;

the sealing convex edge 313 is arranged on the outer wall of the circumference of the sealing screen frame 312, the U-shaped sealing ring 33 is nested outside the sealing convex edge 313, the sealing effect between the sealing filter unit 31 and the coarse filter units 32 on two sides is achieved, and the U-shaped sealing ring 33 and the sealing convex edge 313 are in a wrapping installation mode, so that the U-shaped sealing ring 33 cannot fall off when the device is overhauled and disassembled, the U-shaped sealing ring 33 and the sealing filter unit 31 can be pre-installed during installation, and the installation operation is convenient;

a plurality of flange bolt holes 324 are distributed in the circumferential circle of the coarse filter screen frame 322 for bolt connection and installation with the pipe end flanges of the middle row device 2.

The outer end of the main pipe 21 of the middle drainage device 2 is connected with a regeneration liquid inlet pipe 4 and a middle drainage pipe 5 for inlet regeneration liquid and middle drainage, and the regeneration liquid inlet pipe 41 and the middle drainage pipe 51 are respectively arranged on the regeneration liquid inlet pipe 4 and the middle drainage pipe 5.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (7)

1. A device for preventing resin leakage when a row device in a positive regeneration tower has a fault is characterized in that: including positive regenerator column (1) and set up in well row device (2) in positive regenerator column (1), well row device (2) including female pipe (21) and a plurality of with female pipe (21) flange joint's branch pipe (22), well female pipe (21) of arranging device (2) extend to the positive regenerator column (1) is outer and with positive regenerator column (1) lateral wall fixed connection, well female pipe (21) outer end of arranging device (2) is provided with leak protection filter screen (3), leak protection filter screen (3) are strained unit (31) by closely and are located the colating unit (32) of closely straining unit (31) both sides constitute, the female pipe (21) outer end of well row device (2) is connected with into regeneration liquid pipeline (4) and well row pipeline (5).

2. The apparatus for preventing resin leakage in case of malfunction of a row unit in a male regenerative tower according to claim 1, wherein: close straining unit (31) including close filter screen (311) and close filter screen frame (312), rough filtering unit (32) include rough filter screen (321) and rough filter screen frame (322).

3. The apparatus for preventing resin leakage in case of malfunction of a row unit in a male regenerative tower according to claim 2, wherein: the coarse filter screen frame (322) is provided with an embedded groove (323) towards one side of the dense filter screen frame (312).

4. The apparatus for preventing resin leakage in case of malfunction of a row unit in a male regenerative tower according to claim 2, wherein: the outer wall of the circumference of the sealing and filtering screen frame (312) is provided with a sealing convex edge (313), and the outer side of the sealing convex edge (313) is provided with a U-shaped sealing ring (33) in a nested mode.

5. The apparatus for preventing resin leakage in case of malfunction of a row unit in a male regenerative tower according to claim 2, wherein: and a plurality of flange bolt holes (324) are distributed in a circumferential annular array of the coarse filter screen frame (322).

6. The apparatus for preventing resin leakage in case of malfunction of a row unit in a male regenerative tower according to claim 2, wherein: the aperture of the dense filter screen (311) is smaller than 600 μm, and the coarse filter screen (321) is a 316L stainless steel filter screen.

7. The apparatus for preventing resin leakage in case of malfunction of a row apparatus in a male regeneration tower according to claim 1, wherein: and a regeneration liquid pipe valve (41) and a middle exhaust pipe valve (51) are respectively arranged on the regeneration liquid inlet pipeline (4) and the middle exhaust pipeline (5).

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