Anti-fouling disturbance device for water softening crystallization fluidized bed

Abstract

The utility model relates to crystallization fluidized bed anti -scale technical field especially discloses a kind of water scale inhibition disturbance devices of water hardness removal crystallization fluidized bed. The water scale inhibition disturbance device of water hardness removal crystallization fluidized bed, including the spray gun pipe and water cannon pipe installed above crystallization fluidized bed by support assembly, it is characterized by: adjustable spray head is installed at the front end of the spray gun pipe, the tail end of spray gun pipe is connected the water outlet of injection branch pipe by flexible pressure hose A, the water inlet of injection branch pipe is communicated with water supply main pipe;The tail end of water cannon pipe is connected the water outlet of water cannon branch pipe by flexible pressure hose B, the water inlet of water cannon branch pipe is communicated with water supply main pipe. The utility model device is high in integration, reasonable in design, scale layer adhesion is destroyed by water conservancy disturbance to crystallization fluidized bed, avoid local supersaturation too high, effectively maintain the uniformity of fluidized bed, improve crystallization efficiency and seed activity, prolong the service life of equipment, reduce long-term operation and maintenance cost, suitable for widely popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of scale prevention technology in crystallization fluidized bed, and in particular to a scale prevention disturbance device for water-based hard crystallization fluidized bed. Background Technology

[0002] Fluidized bed crystallization technology is mainly used in water treatment to remove hardness (such as calcium and magnesium ions), achieving efficient hardness removal through an induced crystallization process. However, this technology still has the following problems in practical applications:

[0003] (1) During the fluidization process in the fluidized bed, the crystal nuclei (or seed crystals) are not uniformly impacted by the water flow, which causes the accumulation of crystal nuclei and crystal particles between the bottom and the tank wall, forming clumps that will become larger and larger, preventing fluidization and causing a significant decrease in the removal rate of calcium and magnesium ions.

[0004] (2) When the water flow rate is low, the water pressure of the water distributor is also low, which cannot impact the crystal particles at the bottom to make them fully fluidized and flow, nor can it make the crystal particles fully contact the water to adsorb calcium and magnesium ions. Therefore, the bottom clumps are formed, which block the holes of the water distributor. In severe cases, production needs to be stopped for cleaning.

[0005] (3) When water treatment is carried out intermittently, that is, when the use is suspended, a dense layer of calcium and magnesium ions will form on the crystallized particle layer inside the tank. When the machine is started again, the crystallized layer cannot be opened, and the water can only be ejected through a fixed flow channel. It cannot be fully fluidized, and the removal efficiency is greatly reduced. Moreover, even if some fluidized particles adsorb calcium and magnesium ion compounds, it is more likely to cause scaling, accumulation and clumping, which can cause the entire fluidized tank to be blocked in severe cases.

[0006] Therefore, the use of anti-scaling and anti-disturbance devices in the crystallization fluidized bed water treatment process is a key component to ensure the long-term stable operation of the system. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies, this utility model provides an energy-efficient, long-lasting, and cost-effective anti-scaling and disturbance device for water-based fluidized beds used for hard crystallization removal.

[0008] This utility model is achieved through the following technical solution:

[0009] A device for preventing scaling and disturbance in a water-based fluidized bed for hard crystallization includes a spray gun pipe and a water cannon pipe mounted above the crystallization fluidized bed via a support assembly. The spray gun pipe has an adjustable nozzle at its front end, and its rear end is connected to the outlet of a spray branch pipe via a flexible pressure-resistant hose A. The inlet of the spray branch pipe is connected to a main water supply pipe. The water cannon pipe's rear end is connected to the outlet of a water cannon branch pipe via a flexible pressure-resistant hose B, and the inlet of the water cannon branch pipe is connected to the main water supply pipe. The inlet of the main water supply pipe is connected to the outlet of a pressure tank. The pressure tank is equipped with a pressure transmitter, and has an exhaust port at its top, a drain port at its bottom, and an inlet and outlet on its side wall.

[0010] This invention involves installing spray guns and water cannons above a crystallizing fluidized bed to agitate and clean the tank walls and bottom water distributor of the crystallizing fluidized bed, thereby removing crystal nuclei and preventing scaling. The arrangement and number of spray guns and water cannons can be set according to the size of the crystallizing fluidized bed and the characteristics of the crystal seeds to achieve the best cleaning effect. The pressure tank serves as the water supply device for the spray guns and water cannons, and the water volume and water supply intensity at its front end are regulated and controlled by a pressure transmitter to achieve a stable water supply.

[0011] The preferred technical solution of this utility model is as follows:

[0012] The spray gun tube is mounted above the crystallization fluidized bed via support assembly A, and the water cannon tube is mounted above the crystallization fluidized bed via support assembly B. Both support assembly A and support assembly B include a support sleeve. The spray gun tube / water cannon tube passes through the support sleeve and their central axes coincide. An end cap is provided on the front end of the support sleeve, and a handle wheel is fixed to the rear end via an end sleeve. A pin is provided on the end sleeve, and a guide key is provided between the spray gun tube / water cannon tube and the end sleeve. A collar surrounding the spray gun tube / water cannon tube is provided in the middle position inside the support sleeve.

[0013] The support assembly serves as the mounting and installation device for the spray gun / water cannon tube. It is installed on the tank wall of the crystallization fluidized bed based on the support base, allowing the spray gun / water cannon tube to extend into the crystallization fluidized bed. The support base is fixed and sealed by end caps and end sleeves. The extension position and installation angle of the support base on the tank wall are adjusted by rotating the handle wheel. The spray gun / water cannon tube is installed and extended within the support base by the collar and guide key.

[0014] More preferably, an O-ring A is provided on the contact surface between the end sleeve and the spray gun / water cannon tube, an O-ring B is provided on the contact surface between the collar and the support cylinder, an O-ring C is provided on the contact surface between the end cap and the spray gun / water cannon tube, and a shock-absorbing spring is provided between the inner side of the collar and the spray gun / water cannon tube; the arrangement of multiple O-rings and shock-absorbing springs realizes the sealed connection between the support cylinder and the crystallization fluidized bed, and ensures the installation stability of the spray gun / water cannon tube during disturbance operation.

[0015] More preferably, the handle wheel on the support assembly A is a nozzle rotation handle wheel, which can realize the rotation of the nozzle so as to spray and clean the tank wall from different angles; the handle wheel on the support assembly B is a pin-fixed handle wheel, which fixes the position of the water outlet of the water cannon pipe to realize the rinsing of the water distributor at the bottom of the crystallization fluidized bed.

[0016] The outer side of the support cylinder is provided with a fixing wing, which is bolted to the fixing flange on the crystallization fluidized bed to fix the support cylinder. The support cylinder is provided with an overflow port located between the fixing wing and the tail end. If there is a water leakage problem in the spray gun pipe / water cannon pipe, the residual liquid can be discharged through the overflow port.

[0017] An exhaust valve is installed at the exhaust port at the top of the pressure tank, an electric inlet valve is installed at the water inlet, a main electric valve is installed at the water outlet, and a drain valve is installed at the drain outlet, so as to realize the stability of the air pressure inside the pressure tank and the automatic control of water supply and drainage.

[0018] The jet branch pipe is equipped with a manual valve A, a solenoid valve A, and a manual closing valve A in sequence along the water flow direction. The jet branch pipe is provided with a parallel pipeline A with two ports located upstream of the solenoid valve A and downstream of the manual closing valve A, respectively. A manual valve C is installed on the parallel pipeline A. The existence of the parallel pipeline A ensures the stability of operation. Under normal circumstances, the parallel pipeline A is in a dormant state. Once the solenoid valve A fails to control or is under maintenance, the disturbance device can be manually opened / closed by manually adjusting the manual valve C.

[0019] The water cannon branch pipe is sequentially equipped with a manual valve B, a solenoid valve B, and a manual closing valve B along the water flow direction. The water cannon branch pipe is also equipped with a parallel pipeline B with two ports located upstream of the solenoid valve B and downstream of the manual closing valve B, respectively. A manual valve D is installed on the parallel pipeline B. The existence of the parallel pipeline B ensures the stability of operation. Under normal circumstances, the parallel pipeline B is also in a dormant state. Once the solenoid valve B fails to control or is under maintenance, the disturbance device can be manually opened / closed by manually adjusting the manual valve D.

[0020] This utility model device has a high degree of integration and reasonable design. It breaks down the scale layer on the crystallizing fluidized bed by hydraulic disturbance, avoids excessive local supersaturation, effectively maintains the uniformity of the fluidized bed, improves crystallization efficiency and seed activity, extends equipment service life, and reduces long-term operation and maintenance costs. It is suitable for widespread application. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 A structural schematic diagram of the supporting assembly.

[0024] In the diagram, 1 is the adjustable nozzle, 2 is the spray gun pipe, 3 is the support assembly A, 4 is the nozzle rotation handle wheel, 5 is the flexible pressure-resistant hose A, 6 is the manual shut-off valve A, 7 is the manual valve C, 8 is the solenoid valve A, 9 is the manual valve A, 10 is the spray branch pipe, 11 is the main electric valve, 12 is the pressure transmitter, 13 is the exhaust valve, 14 is the water inlet electric valve, 15 is the pressure tank, 16 is the main water supply pipe, 17 is the water cannon branch pipe, 18 is the manual valve D, 19 is the water cannon pipe, 20 is the support assembly B, 21 is the pin-fixed handle wheel, 22 is the flexible pressure-resistant hose B, 23 is the manual shut-off valve B, 24 is the solenoid valve B, 25 is the manual valve B, 26 is the drain valve, 27 is the end cap, 28 is the support seat, 29 is the shock-absorbing spring, 30 is the handle wheel, 31 is the end sleeve, 32 is the guide key, 33 is the O-ring seal A, 34 is the pin, 35 is the collar, 36 is the O-ring seal B, 37 is the overflow port, and 38 is the O-ring seal C. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] The present invention will now be described in detail with reference to the accompanying drawings: This embodiment includes a spray gun pipe 2 and a water cannon pipe 19 mounted above a crystallization fluidized bed via a support assembly. An adjustable nozzle 1 is installed at the front end of the spray gun pipe 2, and the tail end of the spray gun pipe 2 is connected to the outlet of a spray branch pipe 10 via a flexible pressure-resistant hose A5. The inlet of the spray branch pipe 10 is connected to a main water supply pipe 16. The tail end of the water cannon pipe 19 is connected to the outlet of a water cannon branch pipe 17 via a flexible pressure-resistant hose B22, and the inlet of the water cannon branch pipe 17 is connected to a main water supply pipe 16. The inlet of the main water supply pipe 16 is connected to the outlet of a pressure tank 15. A pressure transmitter 12 is installed on the pressure tank 15. The pressure tank 15 has an exhaust port at the top, a drain port at the bottom, and an inlet and an outlet on its side wall.

[0028] The spray gun pipe 2 is mounted above the crystallization fluidized bed via support assembly A3, and the water cannon pipe 19 is mounted above the crystallization fluidized bed via support assembly B20. Both support assemblies A3 and B20 include a support sleeve 28. The spray gun pipe 2 / water cannon pipe 19 passes through the support sleeve 28, and their central axes coincide. An end cap 27 is provided on the front end of the support sleeve 28, and a handle wheel 30 is fixed on the rear end via an end sleeve 31. A pin 34 is provided on the end sleeve 31, and a guide key 32 is provided between the spray gun pipe 2 / water cannon pipe 19 and the end sleeve 31. The middle part of the support sleeve 28 is... A collar 35 is provided around the spray gun tube 2 / water cannon tube 19; an O-ring A33 is provided on the contact end face of the end sleeve 31 and the spray gun tube 2 / water cannon tube 19, an O-ring B36 is provided on the contact end face of the collar 35 and the support seat 28, an O-ring C38 is provided on the contact end face of the end cap 27 and the spray gun tube 2 / water cannon tube 19, and a shock-absorbing spring 29 is provided between the inner side of the collar 35 and the spray gun tube 2 / water cannon tube 19; the handle wheel 30 on the support assembly A3 is a nozzle rotation handle wheel 4, and the handle wheel 30 on the support assembly B20 is a pinned handle wheel 21.

[0029] A fixing wing is provided on the outer side of the support cylinder 28, and an overflow port 37 is provided on the support cylinder 28 between the fixing wing and the tail end.

[0030] An exhaust valve 13 is installed at the exhaust port at the top of the pressure tank 15, an electric inlet valve 14 is installed at the inlet, a main electric valve 11 is installed at the outlet, and a drain valve 26 is installed at the drain outlet.

[0031] The jet branch pipe 10 is equipped with a manual valve A9, a solenoid valve A8, and a manual closing valve A6 in sequence along the water flow direction. The jet branch pipe 10 is provided with a parallel pipeline A with two ports located upstream of the solenoid valve A8 and downstream of the manual closing valve A6, respectively. A manual valve C7 is provided on the parallel pipeline A. The water cannon branch pipe 17 is equipped with a manual valve B25, a solenoid valve B24, and a manual closing valve B23 in sequence along the water flow direction. The water cannon branch pipe 17 is provided with a parallel pipeline B with two ports located upstream of the solenoid valve B24 and downstream of the manual closing valve B23, respectively. A manual valve D18 is provided on the parallel pipeline B.

[0032] In this embodiment, the pressure tank 15 supplies tap water. When the tap water pressure is insufficient, raw water that needs to be treated needs to be used. This raw water needs to be pumped into the pressure tank 15. The pressure transmitter 12 monitors and provides feedback on the internal pressure. The pressure is stopped when the set pressure is reached and automatically started when the pressure is lower than the set pressure. The pressure should be 0.4-0.5 MPa. The capacity of the pressure tank 15 is approximately 600L.

[0033] A main electric valve 11 is installed at the outlet of the pressure tank 15 to allow the water stored inside to flow into the main water supply pipe 16. The main water supply pipe 16 supplies water to the spray gun pipe 2 and the water cannon pipe 19 through the spray branch pipe 10 and the water cannon branch pipe 17, respectively. In terms of water supply control, the spray branch pipe 10 and the water cannon branch pipe 17 are respectively equipped with corresponding control valves, shut-off valves, automatic adjustment solenoid valves, and manual control branches, so as to facilitate corresponding adjustments according to different application scenarios.

[0034] Two sets of the device of this embodiment should be symmetrically installed on the crystallization fluidized bed. The adjustable nozzle 1 of the spray gun pipe 2 of each set is rotated to spray in one direction, so that the crystallizing particles and crystal seeds rotate and move along the tank wall, disturbing the particles that have not been fluidized, preventing the accumulation and scaling. At the same time, the adjustable nozzle 1 can also turn 360 degrees, rotating and spraying to disturb the scaling particles on the entire tank wall. When rotating 360 degrees, the adjustable nozzle 1 can also move back and forth in the horizontal direction with the spray gun pipe 2, so that the spray surface is a spiral surface, which can fully disturb the fluidized particles, improve the crystallization efficiency, and reduce the amount of chemicals (i.e., the amount of acid and alkali).

[0035] The spray gun tube 2 and the water cannon tube 19 are respectively installed on the vessel wall above the crystallization fluidized bed through the support assembly. In use, the pin 34 on the spray gun tube 2 is pulled out, and the spray gun tube 2 is driven by the nozzle rotation handle wheel 4. The spray gun tube 2 is able to move back and forth and rotate within the support cylinder 28 through the setting of the guide key, so as to adapt to the spray cleaning at different positions. The water cannon tube 19 is fixedly installed through the pin 34. The sealed installation of the spray gun tube 2 and the water cannon tube 19 on the support assembly will not affect the operation of the crystallization fluidized bed.

[0036] The water cannon tube 19 is mainly used to disturb the particles between the water distributor and the medicine distributor at the bottom of the crystallization fluidized bed, so that they cannot accumulate and form scale due to gravity, thus blocking the water flow holes.

[0037] On the other hand, the water cannon pipe 19 and the spray gun pipe 2 can be switched between spraying and water cannon functions depending on the opening time of the solenoid valves A8 and B24. During operation, the device of this invention can be operated automatically at set times or manually via the observation hole of the crystallizing fluidized bed.

[0038] The device in this embodiment can reduce water hardness by about 10% and reduce the amount of chemicals used by about 5%, while extending the scale removal cycle from the original 6 months to 24 months.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A device for preventing scaling and disturbance in a water-based hard crystallization fluidized bed, comprising a spray gun pipe (2) and a water cannon pipe (19) mounted above the crystallization fluidized bed via a support assembly, characterized in that: The spray gun tube (2) is equipped with an adjustable nozzle (1) at the front end. The tail end of the spray gun tube (2) is connected to the outlet of the spray branch pipe (10) through a flexible pressure-resistant hose A (5). The inlet of the spray branch pipe (10) is connected to the main water supply pipe (16). The tail end of the water cannon tube (19) is connected to the outlet of the water cannon branch pipe (17) through a flexible pressure-resistant hose B (22). The inlet of the water cannon branch pipe (17) is connected to the main water supply pipe (16). The inlet of the main water supply pipe (16) is connected to the outlet of the pressure tank (15). The pressure tank (15) is equipped with a pressure transmitter (12). The pressure tank (15) has an exhaust port at the top, a drain port at the bottom, and an inlet and an outlet on the side wall.

2. The anti-scaling and disturbance device for water-based hard crystallization fluidized bed as described in claim 1, characterized in that: The spray gun tube (2) is mounted above the crystallization fluidized bed via support assembly A (3), and the water cannon tube (19) is mounted above the crystallization fluidized bed via support assembly B (20). Both support assembly A (3) and support assembly B (20) include a support cylinder (28). The spray gun tube (2) / water cannon tube (19) passes through the support cylinder (28) and their central axes coincide. An end cap (27) is provided on the front end of the support cylinder (28), and a handle wheel (30) is fixed on the rear end via an end sleeve (31). A pin (34) is provided on the end sleeve (31), and a guide key (32) is provided between the spray gun tube (2) / water cannon tube (19) and the end sleeve (31). A collar (35) surrounding the spray gun tube (2) / water cannon tube (19) is provided in the middle position inside the support cylinder (28).

3. The anti-scaling and anti-disturbance device for water-based hard crystallization fluidized bed as described in claim 2, characterized in that: An O-ring A (33) is provided on the contact surface between the end sleeve (31) and the spray gun pipe (2) / water cannon pipe (19), an O-ring B (36) is provided on the contact surface between the collar (35) and the support seat (28), an O-ring C (38) is provided on the contact surface between the end cap (27) and the spray gun pipe (2) / water cannon pipe (19), and a shock-absorbing spring (29) is provided between the inner side of the collar (35) and the spray gun pipe (2) / water cannon pipe (19).

4. The anti-scaling and anti-disturbance device for water-based hard crystallization fluidized bed as described in claim 2, characterized in that: The handle wheel (30) on the support assembly A (3) is a nozzle rotation handle wheel (4), and the handle wheel (30) on the support assembly B (20) is a fixed handle wheel (21).

5. The anti-scaling and disturbance device for water-based hard crystallization fluidized bed as described in claim 2, characterized in that: The outer side of the support cylinder (28) is provided with a fixed wing, and the support cylinder (28) is provided with an overflow port (37) located between the fixed wing and the tail end.

6. The anti-scaling and disturbance device for water-based fluidized bed hard crystallization as described in claim 1, characterized in that: The pressure tank (15) is equipped with an exhaust valve (13) at the exhaust port, an electric inlet valve (14) at the inlet, a main electric valve (11) at the outlet, and a drain valve (26) at the drain outlet.

7. The anti-scaling and disturbance device for water-based hard crystallization fluidized bed as described in claim 1, characterized in that: The jet branch pipe (10) is sequentially equipped with a manual valve A (9), a solenoid valve A (8), and a manual closing valve A (6) along the water flow direction. The jet branch pipe (10) is provided with a parallel pipeline A with two ports located upstream of the solenoid valve A (8) and downstream of the manual closing valve A (6), respectively. A manual valve C (7) is provided on the parallel pipeline A.

8. The anti-scaling and disturbance device for water-based fluidized bed de-crystallization as described in claim 1, characterized in that: The water cannon branch pipe (17) is provided with a manual valve B (25), a solenoid valve B (24), and a manual closing valve B (23) in sequence along the water flow direction. The water cannon branch pipe (17) is provided with a parallel pipeline B with two ports located upstream of the solenoid valve B (24) and downstream of the manual closing valve B (23), respectively. The parallel pipeline B is provided with a manual valve D (18).

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