Pollution discharge cooling device of periodic pollution discharge flash tank

Abstract

The utility model discloses a blowdown cooling device of a periodic blowdown flash tank, which relates to the technical field of blowdown flash tanks and comprises a blowdown flash tank main body and a composite cooling mechanism fixedly connected with the inside of the blowdown flash tank main body. The combined type cooling mechanism comprises heat dissipation fins fixedly connected to the inner wall of the blowdown flash tank body, one side of each heat dissipation fin is fixedly connected with a spiral heat dissipation pipe, the outer surface of each spiral heat dissipation pipe is fixedly connected with a water-cooling interlayer, the blowdown flash tank body is made of a high-strength corrosion-resistant alloy steel material, reinforcing ribs are arranged in the blowdown flash tank body, and the water-cooling interlayer is fixedly connected with the water-cooling interlayer. The impact of high-temperature and high-pressure sewage can be borne, and the service life of equipment is prolonged. Compared with an existing common blowdown cooling device, the blowdown cooling device of the periodic blowdown flash tank has the advantages that the cooling efficiency is improved, high-temperature sewage can be cooled to a proper temperature, adverse effects caused by blockage are avoided, vibration generated during operation is reduced, and the anti-seismic property of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of blowdown expansion vessel, concretely to a blowdown cooling device of periodic blowdown expansion vessel. BACKGROUND

[0002] The boiler blowdown water is introduced into a larger container for expansion and pressure reduction, which is called a blowdown expansion vessel. According to different blowdown methods, it can be divided into two types: periodic blowdown expansion vessel and continuous blowdown expansion vessel. The continuous blowdown expansion vessel is used to recover the working medium and heat. The blowdown water is saturated water, and directly discharging it will cause the loss of working medium and heat. After the blowdown water is introduced into the expansion vessel, the volume increases, the pressure decreases, and the corresponding saturation temperature and enthalpy decrease. As a result, a part of the steam will vaporize automatically. The steam can be returned to the corresponding thermal system, thus recovering a part of the working medium and heat. However, during blowdown, the high-temperature blowdown water often has many problems.

[0003] For example, the utility model for patent No. CN202022082077.1 relates to the technical field of blowdown expansion vessel, solves the technical problem of poor steam-water separation effect of the existing blowdown expansion vessel, and includes a blowdown expansion vessel body, a sewage inlet pipe, a steam outlet, and a sewage outlet pipe. The first and second installation pipe seats are arranged on the sewage inlet pipe and the sewage outlet pipe, respectively. A steam-water separation assembly is arranged inside the blowdown expansion vessel body, which includes an expansion ring. The tangent line of the water inlet direction of the sewage inlet pipe is tangent to the expansion ring. The utility model enables the sewage to move tangentially, which facilitates the formation of steam. The first and second installation pipe seats can install the throttle valve and the water level regulating valve, effectively reducing the sewage pressure, controlling the water level, and facilitating the expansion and cooling of the sewage in the blowdown expansion vessel body. The utility model not only is convenient and fast to use, but also has a remarkable steam-water separation effect. However, the blowdown cooling device has low cooling efficiency, cannot quickly reduce the high-temperature blowdown water to the appropriate temperature, increases the difficulty of subsequent treatment, lacks effective anti-clogging structure, and the impurities in the sewage can cause pipeline clogging, affecting the normal operation of the blowdown work. In addition, the device has poor shock resistance, and the vibration generated during operation can cause the parts to loosen.

[0004] Therefore, in view of the above problems, the periodic blowdown expansion vessel blowdown cooling device is improved. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a periodic blowdown expansion vessel blowdown cooling device to solve the problems in the background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a periodic blow -down expansion vessel blow -down cooling device, including blow -down expansion vessel main part and composite cooling mechanism, its characterized in be, the inside fixed connection of blow -down expansion vessel main part has composite cooling mechanism, and composite cooling mechanism includes the heat dissipation fin fixed connection in the inner wall position of blow -down expansion vessel main part, one side of heat dissipation fin is fixedly connected with spiral heat dissipation pipe, and the outer surface fixed connection of spiral heat dissipation pipe has water -cooling interlayer.

[0007] Preferably, one side of the blow -down expansion vessel main body is fixedly connected with an inlet, and the other side of the inlet is fixedly connected with an anti -clogging mechanism.

[0008] Preferably, the anti -clogging mechanism includes a conical flow guide cover fixedly connected to one side of the inlet, and a filter screen grid fixedly connected to one side of the conical flow guide cover.

[0009] Preferably, the inside of the blow -down expansion vessel main body is fixedly connected with a centrifugal separation cavity, and the outer surface of the blow -down expansion vessel main body is fixedly connected with an elastic support column.

[0010] Preferably, one end of the elastic support column is fixedly connected with a shock -absorbing frame, and the top of the blow -down expansion vessel main body is fixedly connected with a steam outlet.

[0011] Preferably, the bottom of the blow -down expansion vessel main body is fixedly connected with a sewage discharge pipe, and the outer surface of the sewage discharge pipe is provided with an adjusting valve.

[0012] Preferably, the bottom of the blow -down expansion vessel main body is fixedly connected with a support frame, and the bottom of the support frame is fixedly connected with a rubber shock pad, and one side of the support frame is fixedly connected with an arc-shaped water baffle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a composite cooling mechanism, and the spiral heat dissipation pipe increases the heat dissipation path of sewage during discharge, increases the contact area with the outside air, the heat dissipation fin is installed on the outside of the spiral heat dissipation pipe, air flow is accelerated, heat dissipation effect is strengthened, the water -cooling interlayer surrounds the periphery of the spiral heat dissipation pipe, cooling water is led into the inside, further reduces the sewage temperature, three work together, greatly improves the cooling efficiency, and high -temperature sewage is quickly reduced to the appropriate temperature, which is convenient for subsequent treatment.

[0015] 2.The utility model discloses a set of anti -blocking mechanism 4, the conical fairing guides the even flow of sewage, avoids the impurity accumulation, and the filter screen grid intercepts the big particle impurity in sewage, and the backflushing spray pipe is arranged at the back of filter screen grid, when needing to clean the filter screen, through the manual valve control, high -pressure water is sprayed from the backflushing spray pipe, and the impurity on the filter screen grid is washed, prevents the effective prevention of the impurity in sewage from blocking the pipeline, and guarantees the smooth operation of the sewage discharge work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole three -dimensional internal structure schematic diagram of the utility model;

[0017] Figure 2 It is the whole three -dimensional internal structure schematic diagram of the utility model;

[0018] Figure 3 It is the structure schematic diagram of composite cooling mechanism 2 of the utility model;

[0019] Figure 4 It is the structure schematic diagram of shock attenuation frame 7 of the utility model.

[0020] In the drawing: 1, sewage expansion vessel main part;2, composite cooling mechanism;201, heat dissipation fin;202, spiral heat dissipation pipe;203, water cooling interlayer;3, import;4, anti -blocking mechanism;401, conical fairing;402, filter screen grid fence;403, manual valve;5, centrifugal separation cavity;6, elastic support column;7, shock attenuation frame;8, steam export;9, sewage discharge pipe;10, regulating valve;11, support frame;12, rubber shock pad;13, arc baffle. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] As Figures 1-3As shown, a kind of blowdown expansion vessel blowdown cooling device, including blowdown expansion vessel main body 1 and composite cooling mechanism 2, it is characterized in that, the inside fixedly connected with composite cooling mechanism 2 of blowdown expansion vessel main body 1, and composite cooling mechanism 2 includes fixedly connected with the heat dissipation fin 201 of blowdown expansion vessel main body 1 inner wall position, the side fixedly connected with helical heat dissipation pipe 202 of heat dissipation fin 201, and the outer surface fixedly connected with water-cooled sandwich 203 of helical heat dissipation pipe 202, blowdown expansion vessel main body 1 adopts high-strength corrosion-resistant alloy steel material, inside is provided with reinforcing rib, ensure that structure is stable, can withstand the impact of high temperature and high pressure sewage, prolong the service life of equipment, the surface of heat dissipation fin 201 is attached with corrosion-resistant paint, helical heat dissipation pipe 202, strengthen the heat dissipation effect, water-cooled sandwich 203, further reduce sewage temperature.

[0023] As shown, Figure 4 The side fixedly connected with import 3 of blowdown expansion vessel main body 1, and the side fixedly connected with anti-blocking mechanism 4 of import 3, anti-blocking mechanism 4 includes fixedly connected with the conical fairing 401 of import 3 one side position, and the side fixedly connected with filter screen grid fence 402 of conical fairing 401, the outer surface fixedly connected with manual valve 403 of import 3, conical fairing 401 guides the uniform flow of sewage, filter screen grid fence 402 intercepts large particle impurities in sewage, the back of filter screen grid fence 402 is provided with flush lance, and manual valve 403 controls high-pressure water flow.

[0024] Further, the inside fixedly connected with centrifugal separation cavity 5 of blowdown expansion vessel main body 1, and the outer surface fixedly connected with elastic support column 6 of blowdown expansion vessel main body 1, the end fixedly connected with shock-absorbing frame 7 of elastic support column 6, and the top fixedly connected with steam outlet 8 of blowdown expansion vessel main body 1, the inside fixedly connected with inclined plate sedimentation zone and magnetic attraction separation rod of centrifugal separation cavity 5, centrifugal separation cavity 5 utilizes the centrifugal force generated by sewage rotation, and separates out the impurities with greater density, the inclined plate sedimentation zone makes the suspended particles in sewage precipitate on the inclined plate, facilitating collection, and the magnetic attraction separation rod is used for adsorbing ferromagnetic impurities contained in sewage, to realize effective separation of various impurities, and the elastic support column 6 connects the blowdown expansion vessel main body 1 and the shock-absorbing frame 7, and buffers vibration through elastic deformation.

[0025] Further, the bottom fixedly connected with sewage discharge pipe 9 of blowdown expansion vessel main body 1, and the outer surface provided with regulating valve 10 of sewage discharge pipe 9, the bottom fixedly connected with support frame 11 of blowdown expansion vessel main body 1, and the bottom fixedly connected with rubber shock pad 12 of support frame 11, and the side fixedly connected with arc-shaped fender 13 of support frame 11, regulating valve 10 realizes flexible adjustment of blowdown flow, to adapt to different working condition requirements, the support frame 11 supports the device, and the rubber shock pad 12 directly contacts with the ground, and absorbs vibration energy.

[0026] Working principle: when using the periodic blowdown expansion tank blowdown cooling device, first high temperature sewage through the blowdown expansion tank body 1 into the import 3, compound type anti-blocking mechanism 4 conical fairing 401 guide sewage uniform flow into, filter grid fence 402 intercept large particles impurities, if the filter grid fence 402 blockage, can open the flush nozzle manual valve 403 flushing, sewage in the blowdown expansion tank body, centrifugal separation cavity 5 using centrifugal force separation of density large impurities, inclined plate sedimentation zone makes suspended particles precipitate, magnetic separation bar adsorption ferromagnetic impurities, then in the process of filtration generated hot gas through steam outlet 8 discharge, after preliminary treatment of sewage into the composite cooling mechanism 2, heat dissipation fin 201, spiral heat dissipation pipeline 202 and water cooling layer 203 synergistic effect cooling, when the device runs produce vibration, support frame 11 bottom of the rubber shock pad 12, elastic support column 6 and shock absorbing frame 7 absorb vibration energy, finally open the sewage discharge pipe 9 outer surface of the adjusting valve 10, blowdown complete, arc baffle 13 prevent sewage splash, this is the periodic blowdown expansion tank blowdown cooling device working principle.

Claims

1. A periodic sewage expansion container sewage cooling device, comprising a sewage expansion container body (1) and a composite cooling mechanism (2), characterized in that, The main body (1) of the sewage expansion container is internally fixedly connected to a composite cooling mechanism (2), and the composite cooling mechanism (2) includes a heat dissipation fin (201) fixedly connected to the inner wall of the main body (1) of the sewage expansion container. A spiral heat dissipation pipe (202) is fixedly connected to one side of the heat dissipation fin (201), and a water-cooling jacket (203) is fixedly connected to the outer surface of the spiral heat dissipation pipe (202).

2. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 1, characterized in that, An inlet (3) is fixedly connected to one side of the main body (1) of the sewage expansion container, and an anti-clogging mechanism (4) is fixedly connected to one side of the inlet (3).

3. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 2, characterized in that, The anti-clogging mechanism (4) includes a conical guide shroud (401) fixedly connected to one side of the inlet (3), and a filter grid (402) is fixedly connected to one side of the conical guide shroud (401). A manual valve (403) is fixedly connected to the outer surface of the inlet (3).

4. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 1, characterized in that, The main body (1) of the sewage expansion container is fixedly connected to a centrifugal separation chamber (5), and the outer surface of the main body (1) of the sewage expansion container is fixedly connected to an elastic support column (6).

5. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 4, characterized in that, One end of the elastic support column (6) is fixedly connected to a shock-absorbing frame (7), and the top of the sewage expansion container body (1) is fixedly connected to a steam outlet (8).

6. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 1, characterized in that, The bottom of the main body (1) of the sewage discharge expansion container is fixedly connected to a sewage discharge pipe (9), and a regulating valve (10) is provided on the outer surface of the sewage discharge pipe (9).

7. The periodic sewage discharge expansion container sewage discharge and cooling device according to claim 1, characterized in that, The bottom of the main body (1) of the sewage expansion container is fixedly connected to a support frame (11), and the bottom of the support frame (11) is fixedly connected to a rubber shock-absorbing pad (12), and one side of the support frame (11) is fixedly connected to an arc-shaped water baffle (13).

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