CN110560182B - Advanced treatment resin regeneration device for drinking water - Google Patents
Advanced treatment resin regeneration device for drinking water Download PDFInfo
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- CN110560182B CN110560182B CN201910902328.5A CN201910902328A CN110560182B CN 110560182 B CN110560182 B CN 110560182B CN 201910902328 A CN201910902328 A CN 201910902328A CN 110560182 B CN110560182 B CN 110560182B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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Abstract
The invention discloses a resin regeneration device for advanced treatment of drinking water, and belongs to the technical field of resin regeneration. The invention comprises a regeneration reactor, wherein a resin inlet, a regenerated liquid inlet and a clear water inlet are arranged on the regeneration reactor; the bottom slope in the regeneration reactor is provided with the filter, is provided with extraction opening and drawing liquid mouth on the regeneration reactor of filter below, extraction opening and drawing liquid mouth pass through the pipeline and link to each other with the outer aspiration pump of regeneration reactor and drawing liquid pump respectively, and regeneration reactor bottom still is provided with the resin export, and the resin export sets up in the filter plate bottom department of filter. According to the invention, through the inclined arrangement of the filter plate, the filter tube can be prevented from being arranged in the regeneration tank cylinder, so that the resin bridging condition is avoided, the desorption liquid can be separated to the maximum extent, and the condition that the desorption liquid is not completely separated is improved.
Description
Technical Field
The invention relates to the technical field of resin regeneration, in particular to a resin regeneration device for advanced treatment of drinking water.
Background
Because of the continuous increase of economy, the increasing use of water resources, the increasing diversification of water pollution and the huge population capacity of China, the serious uneven water resource distribution causes the serious problem of drinking water safety of people. Because the current pollution situation of most tap water sources is serious, the conventional tap water treatment cannot meet the drinking requirement, so the tap water after the conventional treatment needs to be subjected to advanced treatment, and the conventional treatment methods comprise an activated carbon and ozone catalysis process, an ion exchange resin process and the like, wherein the ion exchange resin has low treatment cost and good treatment effect, and is widely researched and applied to the tap water advanced treatment at present. The ion exchange resin has good removal effect on inorganic ions with toxic action on nitrate, sulfate, bromide ions and the like while effectively removing organic matters in the water body, and can effectively reduce disinfection byproducts and biotoxicity of the water body.
The existing regeneration method is to convey saturated resin to a regeneration system, and the system is provided with a suspension separator, so that the resin is drained from top to bottom, but the draining time is long, the regeneration efficiency is low, in addition, the channeling phenomenon is serious, the using amount of a regenerant is large, the resin is easy to bridge and is not beneficial to returning, and meanwhile, the suspension separator is easy to run off the resin to cause the loss of the resin.
Chinese patent through retrieval: a powder resin desorption regeneration reactor (application number: 2011104268701, application date: 2011, 12 and 19), in the technical scheme of the patent, a stirrer is arranged at the center of the upper part of the reactor, and the stirrer adopts a propeller blade type; although the regenerated liquid and the resin can be fully combined by the method, the resin is easy to break in the stirring process, and the reuse of the subsequent resin is influenced; in addition, the desorption liquid suction filtration pipe and the resin discharge pipe in the reactor are both arranged at the bottom of the reactor, and in the process of recycling the resin, the resin can form a bridging effect at the desorption liquid suction filtration pipe, so that the resin is difficult to discharge through the resin discharge pipe, and the recycling efficiency of the resin is reduced; if the desorption liquid suction filter tube is at the height of the reactor, the desorption liquid suction filter tube is difficult to completely suck the liquid at the bottom of the reactor, so that the resin desorption is incomplete.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to solve the problem of poor regeneration effect of the existing resin, and provides a drinking water advanced treatment resin regeneration device.
2. Technical scheme
In order to solve the problems, the technical scheme adopted by the invention is as follows:
the invention discloses a resin regeneration device for advanced treatment of drinking water, which comprises a regeneration reactor, wherein a resin inlet, a regenerated liquid inlet and a clear water inlet are formed in the regeneration reactor; the bottom slope in the regeneration reactor is provided with the filter, is provided with extraction opening and drawing liquid mouth on the regeneration reactor of filter below, extraction opening and drawing liquid mouth pass through the pipeline and link to each other with the outer aspiration pump of regeneration reactor and drawing liquid pump respectively, and regeneration reactor bottom still is provided with the resin export, and the resin export sets up in the filter plate bottom department of filter.
Preferably, the included angle between the obliquely arranged filter plate and the horizontal plane is alpha, wherein alpha is more than or equal to 30 degrees and less than or equal to 45 degrees.
Preferably, the bottom end of the filter plate is connected with the bottom of the reactor, and a gentle section is formed between the connection position and the position far away from the edge of the bottom of the reactor; the width of the gentle section is D, the width of the bottom of the reactor is D, and D is k1D, wherein k is more than or equal to 0.11≤0.2。
Preferably, a first outlet of the circulating pump and an inlet of the circulating pump are arranged on the regeneration reactor, the first outlet of the circulating pump is arranged below the inlet of the circulating pump, the first outlet of the circulating pump and the inlet of the circulating pump are connected with each other outside the regeneration reactor through a circulating pipeline, and the circulating pipeline is provided with the circulating pump.
Preferably, the resin adding port is communicated to the bottom in the regeneration reactor through a resin adding pipe, the distance from the outlet pipe orifice at the bottom of the resin adding pipe to the filter plate is h1, wherein h is more than or equal to 150mm1≤400mm。
Preferably, the first outlet of the circulating pump is arranged on one side of the regeneration reactor far away from the top end of the filter plate provided with the filter plate; the height from the first outlet of the circulating pump to the bottom of the reactor is h2, wherein the height of h2 is more than or equal to 200mm and less than or equal to 300 mm.
Preferably, the first outlet of the circulation pump is arranged on the side of the regeneration reactor which is far away from the top end of the filter plate provided with the filter plate.
Preferably, a gas-liquid separator is arranged on a pipeline between the air extraction opening and the air extraction pump, a liquid return opening is arranged on the regeneration reactor, and a liquid return end of the gas-liquid separator is connected with the liquid return opening through a pipeline.
Preferably, the height from the clear water feeding port to the top of the filter plate is h3, and h is more than or equal to 50mm3≤200mm。
And a second outlet of the circulating pump is arranged below the filtering plate 110, the second outlet of the circulating pump is connected with the first outlet of the circulating pump in parallel, and the second outlet of the circulating pump is arranged at the bottom of the reactor.
Preferably, an ultrasonic liquid level sensor is arranged on the regeneration reactor, and a high liquid level switch and a low liquid level switch are arranged below the filter plate.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the invention discloses a resin regeneration device for advanced treatment of drinking water, which comprises a regeneration reactor, wherein a resin inlet, a regenerated liquid inlet and a clear water inlet are formed in the regeneration reactor; the bottom in the regeneration reactor is obliquely provided with a filter plate, the regeneration reactor below the filter plate is provided with an air suction port and a liquid suction port, the air suction port and the liquid suction port are respectively connected with an air suction pump and a liquid suction pump outside the regeneration reactor through pipelines, the bottom of the regeneration reactor is also provided with a resin outlet, and the resin outlet is arranged at the bottom end of the filter plate; through the inclined arrangement of the filter plate, a suction filter pipe can be prevented from being arranged in the regeneration tank cylinder, so that the resin bridging condition is avoided, desorption liquid can be separated to the maximum extent, and the condition that the desorption liquid is not completely separated is improved.
(2) According to the resin regeneration device for advanced treatment of drinking water, the first outlet of the circulating pump and the inlet of the circulating pump are arranged on the regeneration reactor, the first outlet of the circulating pump is arranged below the inlet of the circulating pump, the first outlet of the circulating pump and the inlet of the circulating pump are connected outside the regeneration reactor through the circulating pipeline, and the circulating pipeline is provided with the circulating pump; the resin is fully desorbed by a circulating mode.
(3) According to the resin regeneration device for advanced treatment of drinking water, the second outlet of the circulating pump is arranged below the filter plate and connected with the first outlet of the circulating pump in parallel, the second outlet of the circulating pump is arranged at the bottom of the reactor, a plurality of circulating pump outlets are adopted, the uniformity of water distribution is improved, the water distribution is more uniform, the circulation is softer, filter cloth holes can be dredged by backflushing the filter cloth from the bottom, and the resistance of the filter cloth is reduced.
(4) According to the resin regeneration device for advanced treatment of drinking water, the clear water inlet is formed in the position, close to the top end of the filter plate, above the filter plate, the height from the clear water inlet to the top of the filter plate is h3, and h3 is not less than 50mm and not more than 200 mm; when the resin is returned, water can enter from the filter plate, the resin is fully disturbed to improve the resin conveying performance, and the resin is prevented from being deposited. The resin obtained by switching the water inflow according to the requirement at multiple points is fully regenerated and the filter cloth can be regenerated, thereby reducing the resistance of the filter cloth.
Drawings
FIG. 1 is a schematic structural diagram of a resin regenerating device for advanced treatment of drinking water according to the present invention;
FIG. 2 is a partially enlarged schematic view of a resin regenerating device for advanced treatment of drinking water according to the present invention.
The reference numerals in the schematic drawings illustrate:
100. a regeneration reactor; 101. the bottom of the reactor; 110. a filter plate; 111. the top end of the filter plate; 112. the bottom end of the filter plate; 113. a gentle section; 120. a resin inlet; 121. a resin addition tube; 122. an outlet pipe orifice; 130. a regeneration liquid inlet; 140. a clear water inlet; 141. a non-return valve; 142. a second inlet port; 150. a strip-shaped sight glass; 151. an ultrasonic liquid level sensor; 152. a high liquid level switch; 153. a low level switch;
210. a circulation pump; 211. a first outlet of the circulation pump; 212. an inlet of a circulation pump; 213. a second outlet of the circulation pump;
220. an air pump; 221. a gas-liquid separator; 222. a liquid return port; 223. an air extraction opening;
230. a liquid pump; 231. a liquid extraction port; 232. a desorption liquid pumping valve; 233. a filtered water pumping valve; 240. and (4) resin outlet.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the embodiments of the present invention are not independent of each other, but may be combined.
Example 1
As shown in fig. 1-2, the resin regeneration device for advanced treatment of drinking water of the present embodiment includes a regeneration reactor 100, wherein the regeneration reactor 100 is provided with a resin inlet 120, a regeneration liquid inlet 130 and a clean water inlet 140; the resin inlet 120 of this embodiment is connected to the bottom of the regeneration reactor 100 through a resin inlet pipe 121, and the resin used for completing the water treatment is fed from the resin inlet 120 into the regeneration reactor 100 through the resin inlet pipe 121. In the process of resin regeneration, the used regeneration liquid such as sodium chloride solution is added into the regeneration reactor 100 through the regeneration liquid inlet 130; the cleaning solution is added to the regeneration reactor 100 through the clean water addition port 140.
In addition, at the bottom in the regeneration reactor 100, the bottom 101 of the reactor is arranged to be a plane, and the reactor in the prior art mostly adopts a conical bottom structure, so that the conical bottom design is easy to cause the resin to be silted at the conical bottom; the filter plate 110 is obliquely arranged at the position, the regeneration reactor 100 below the filter plate 110 is provided with a pumping hole 223 and a pumping hole 231, namely, in an area which cannot be stacked below the filter plate 110, the regeneration reactor 100 is provided with the pumping hole 223 and the pumping hole 231, and the pumping hole 223 and the pumping hole 231 are respectively connected with a pumping pump 220 and a pumping pump 230 outside the regeneration reactor 100 through pipelines.
When the air pump 220 works, liquid in the resin can be effectively separated from the resin through the air pumping action on the bottom of the resin; and the gas-liquid separator 221 is arranged on the pipeline between the air extraction opening 223 and the air extraction pump 220, the liquid return opening 222 is arranged on the regeneration reactor 100, and the liquid return end of the gas-liquid separator 221 is connected with the liquid return opening 222 through the pipeline, so that the influence of liquid on the air extraction process can be avoided. In addition, the liquid at the bottom of the regeneration reactor 100 is pumped out through the liquid pumping port 231 by the liquid pumping pump 230, the pipeline behind the liquid pumping pump 230 is respectively communicated to the desorption liquid pumping valve 232 and the filtered water pumping valve 233, and when different liquids need to be pumped out, the corresponding valves are opened for pumping out.
It should be noted that the included angle between the filter plate 110 and the horizontal plane is α, wherein α is greater than or equal to 30 ° and less than or equal to 45 °, α is too small to facilitate the resin output, and α occupies too much space of the cylinder if too large. A combination of a between 30 ° and 45 ° is suitable. Compared with the patents (application number: 2011104268701, application date: 2011, 12/19), the filter plate 110 arranged obliquely avoids the phenomena that the filter pipe blocks the circulation of the resin and the resin is bridged in the regeneration tank and the desorption liquid below the filter pipe is not completely separated, increases the filter area and accelerates the filter speed.
In addition, the outlet 122 at the bottom of the resin inlet tube 121 is disposed near the top 111 of the filter plate 110, and the height from the outlet 122 to the top 111 of the filter plate is h1, wherein h is not less than 150mm1Less than or equal to 400 mm. The resin to be treated is introduced into the regeneration reactor 100 through a resin inlet pipe 121 via an outlet pipe orifice 122.
The regeneration reactor 100 is further provided with a resin outlet 240 at the bottom, the resin outlet 240 is disposed at the bottom end 112 of the filter plate 110, and the resin treated in the regeneration reactor 100 is output from the resin outlet 240 and can be pumped by using a displacement pump as power. Combining the gentle setting of reactor bottom 101, the setting of clear water inlet 140 and resin outlet 240, the resin loopbacks the in-process can not appear the circumstances of silting up and blockking up to the first export 211 of circulating pump sets up in the regeneration reactor 100 and keeps away from the one side that is provided with the filter plate top 111 of filter plate 110, makes resin edgewise output and exit relatively gentle, has avoided resin outlet 240 pipeline department to take place the phenomenon of jam.
In addition, the bottom end 112 of the filter plate 110 is connected to the reactor bottom 101, and a flat section 113 is formed between the connection and the edge of the reactor bottom 101; and the width of the flattish section 113 is D, the width of the reactor bottom 101 is D, D ═ k1D, wherein k is more than or equal to 0.11Less than or equal to 0.2. The design of this length gentle section 113 is favorable to improving the pile up of resin here, thereby avoids resin excessive deposit to influence the transport of resin, can make the resin can export more conveniently.
In addition, the height from the clear water inlet 140 to the bottom 101 of the reactor in the embodiment is h3, wherein h is more than or equal to 50mm3200mm or less, and in the embodiment, the clean water inlet 140 is arranged above the filter plate 110 and close to the top end 111 of the filter plate 110, and the clean water inlet 140 is arranged at the position, which is favorable for effectively flushing the resin at the position, and preferably, the clean water inlet 140 is arranged downwards and slants downwards, the slant angle is gamma, gamma is k4 x (90-alpha), wherein 1 is more than or equal to k4 and is less than or equal to 1.2. And the clear water inlet 140 is a duckbill-shaped nozzle, the duckbill-shaped nozzle faces the filter plate 110, and the clear water inlet 140 can flush the clear water to the filter plate 110 in the clear water process, so that the resin treatment effect can be improved. The purpose of the clean water inlet 140 is to add a sufficient amount of water during the resin return process, otherwise the resin is not fluid, and the pumping of the resin cannot be realized, and the deposition of a large amount of resin during the conveying process is easy to cause the blockage of the resin return port, so that the water needs to be discharged to impact the resin return port to prevent the blockage of the resin from silting up.
It should be noted that a second inlet 142 is also included, and the second inlet 142 is also used for adding clean water into the regeneration reactor 100, but in this embodiment, the second inlet 142 is located on the side wall of the regeneration reactor 100 below the filter plate 110, and the second inlet 142 is also a duckbill nozzle, the water spraying direction of which is also towards the filter plate 110, and this arrangement can back flush the filter cloth to prevent clogging of the filter cloth. The clean water at the clean water inlet 140 and the second inlet 142 may be supplied through a clean water supply pipe, and a check valve 141 is provided at the clean water supply pipe to prevent the reverse flow of the regenerant and the clean water during the circulation process.
It is worth mentioning that a first outlet 211 of the circulation pump and an inlet 212 of the circulation pump are arranged on the regeneration reactor 100, the first outlet 211 of the circulation pump is arranged below the inlet 212 of the circulation pump, the first outlet 211 of the circulation pump and the inlet 212 of the circulation pump are connected outside the regeneration reactor 100 through a circulation pipeline, and the circulation pipeline is provided with a circulation pump 210; preferably, the fresh water addition port 140 is also connected to the circulation pump first outlet 211 in parallel with the circulation pump 210. A strip mirror 150 is provided in the regeneration reactor 100. The bar mirror 150 allows visual observation of the tank level and internal resin disturbance conditions. The top of the regeneration reactor 100 is provided with an ultrasonic liquid level sensor 151, and a high liquid level switch 152 and a low liquid level switch 153 are arranged below the filter plate. When the device is used, for example, regenerated liquid and cleaning water are added into the regeneration reactor 100 through the clean water adding port 140, when the height of a regenerant or cleaning water liquid level exceeding the height of the circulating pump inlet 212 is known through the feedback of the ultrasonic liquid level sensor 151, the circulating pump 210 is opened, water is fed into the bottom of the regeneration reactor 100 through the circulating pump first outlet 211, the circulating pump inlet 212 pumps water at the upper part of the regeneration reactor 100, so that the inside of the regeneration reactor 100 forms circulation from bottom to top, and the resin can be sufficiently regenerated and cleaned through the regenerant and the cleaning liquid through the circulation, so that the resin is sufficiently desorbed.
The circulating pump outlet 211 is arranged at one side of the regeneration reactor 100 far away from the top end 111 of the filter plate provided with the filter plate 110, namely, at one side of the regeneration reactor 100 opposite to the inclined surface of the filter plate 110, and the height from the first outlet 211 of the circulating pump to the bottom 101 of the reactor is h2, wherein 200mm is more than or equal to h2 is more than or equal to 300mm, and the spraying direction of the first outlet 211 of the circulating pump is arranged downwards in an inclined way, the included angle between the spraying direction and the vertical direction is 45-60 degrees, and 53 degrees is preferred in the embodiment. Setting the circulation pump first outlet 211 at this height facilitates agitation of the resin at the resin extraction port to prevent resin deposition, thereby promoting smooth resin delivery.
It should be noted that, as a preferred mode, a second outlet 213 of the circulation pump is further disposed below the filter plate 110, the second outlet 213 of the circulation pump is disposed at the bottom 101 of the reactor, and the liquid sprayed by the second outlet 213 of the circulation pump is in parallel connection with the first outlet 211 of the circulation pump, i.e. the second outlet 213 of the circulation pump is in parallel connection with the first outlet 211 of the circulation pump. In the resin regeneration and resin cleaning section, the first outlet 211 and the second outlet 213 of the circulating pump are opened, the regenerant cleaning solution can be more uniformly distributed after being distributed by the filter screen of the filter plate 110, the desorption effect is better, the filter cloth is backwashed, and the blockage of the filter cloth holes is avoided.
One of the using processes of the resin regeneration device in the embodiment is as follows: adding a certain amount of resin to be regenerated into the resin which is saturated in adsorption from a filter plate 110 at the bottom of a regeneration reactor 100 through a resin adding port 120, then adding a certain amount of regenerant into the regeneration reactor 100, starting a circulating pump 210, opening a first outlet 211 and a second outlet 213 of the circulating pump, and after circulating for a period of time, starting a liquid drawing pump 230 to draw off desorption liquid; and the suction pump 220 is turned on to perform suction filtration. Stopping the operation of the air pump 220 when the liquid level triggers the high liquid level switch 152 under the filter plate 110, starting the air pump 220 when the liquid level triggers the low liquid level switch 153, promoting the full precipitation of the liquid such as desorption liquid in the resin on the filter plate 110 by the air pump 220 until the desorption liquid is evacuated, then adding clear water, and cleaning the adsorbed resin; the operation is the same as above. And after the cleaning is finished, the cleaning solution is pumped out. Finally, the clear water inlet 140 and the second inlet 142 are opened to add clear water, the resin pump at the resin outlet 240 is started, the clear water inlet is closed after the resin is completely pumped out, and the resin pump is closed. At this time, one regeneration process is completed.
Example 2
1.2m into the resin regeneration reactor 1003Adsorbing the saturated resin, and regenerating the adsorption saturated resin. The regenerant is introduced into the regeneration reactor 100 through the regenerant inlet port 130 until the brine level reaches the set level of the ultrasonic level sensor 151, in which the amount of brine added is 2 times the volume of the resin, in this example saltThe mass fraction of water is 15%. The circulation pump 210 is turned on and the circulation pump first outlet 211 and the circulation pump second outlet 213 are opened. After the liquid flows through the filter screen of the filter plate 110 in a circulating countercurrent manner to uniformly distribute water, the resin and the regenerant are uniformly and fully mixed, desorption liquid is obtained after circulation for 15-30 min, the circulating pump 210 is closed and the liquid pump 230 is started after desorption, namely a desorption liquid output pump, the air pump 220, namely a vacuum filtration pump, is started at the same time, the vacuum degree is adjusted and controlled to be 0.4bar, and the start and stop of the air pump 220 and the liquid pump 230 are automatically controlled according to the high liquid level switch 152 and the low liquid level switch 153 until the desorption liquid is completely pumped out.
After the regeneration is finished, the clean water inlet 140 and the second inlet 142 are opened, and clean water is added into the regeneration reactor to clean the resin. Adding a certain amount of clean water in the same operation process, starting the circulating pump 210 to circularly clean the resin, starting the circulating pump 210 for about 15min, and closing the circulating pump 210 and the clean water inlet 140 and the second inlet 142. Then, the suction pump 220 is turned on to suction and the suction pump 230 is turned on to pump out the cleaning water. The start and stop of the air pump 220 and the liquid pump 230 are automatically controlled according to the high liquid level switch 152 and the low liquid level switch 153. After the washing water is drained. And finishing the cleaning working section.
Finally, the clean water inlet 140 and the second inlet 142 are opened, and clean water is introduced into the regeneration reactor 100. At the same time, the resin pump at the resin outlet 240 is turned on and resin is returned to the resin reactor. After the resin is completely returned, the resin pump is turned off.
Example 3
In the present embodiment, the regeneration reactor 100 is a carbon steel lining food-grade PP structure with a diameter of 2.0m and a height of 3.0m, the filter plate 110 is a perforated plate, and the filter cloth on the filter plate 110 is 60-mesh nylon cloth. The inclination angle of the filter plate 110 is 35 degrees, the external circulating pump 210 is an air-operated diaphragm pump, and the flow rate is 30m3And H, the resin outlet pipeline is DN200, the carbon steel lining pipe is arranged, and the desorption liquid outlet is DN150 carbon steel lining pipe. Each time regenerating the resin 2.5m3And adding 2 times of desorption agent. And (4) desorbing for 30 min. After the ion exchange resin is regenerated by the device, the adsorption equilibrium quantity of the regenerated resin is close to that of the new resinThe adsorption balance is 97%.
The invention has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined in the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the invention or the application and field of application of the invention.
More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, combined, e.g., between various embodiments, adapted and/or substituted, as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.
Claims (8)
1. The resin regeneration device for advanced treatment of drinking water is characterized by comprising a regeneration reactor (100), wherein the regeneration reactor (100) is provided with a resin inlet (120), a regenerated liquid inlet (130) and a clear water inlet (140); the bottom in the regeneration reactor (100) is obliquely provided with a filter plate (110), the regeneration reactor (100) below the filter plate (110) is provided with an air suction port (223) and a liquid suction port (231), the air suction port (223) and the liquid suction port (231) are respectively connected with an air suction pump (220) and a liquid suction pump (230) outside the regeneration reactor (100) through pipelines, the bottom of the regeneration reactor (100) is also provided with a resin outlet (240), and the resin outlet (240) is arranged at the bottom end (112) of the filter plate (110); an included angle between the filter plate (110) which is obliquely arranged and the horizontal plane is alpha, wherein alpha is more than or equal to 30 degrees and less than or equal to 45 degrees; the clear water adding port (140) is arranged above the filter plate (110) and close to the top end (111) of the filter plate, the height from the clear water adding port (140) to the top of the filter plate (101) is h3, and h3 is more than or equal to 50mm and less than or equal to 200 mm.
2. The advanced drinking water treatment resin regeneration device as claimed in claim 1, wherein the bottom end (112) of the filter plate (110) is connected with the reactor bottom (101) and forms a flat section (113) between the connection and the position far away from the edge of the reactor bottom (101); the width of the gentle section (113) is D, the width of the reactor bottom (101) is D, D = k1D, wherein 0.1. ltoreq. k 1. ltoreq.0.2.
3. The resin regeneration device for advanced treatment of drinking water according to claim 1, wherein the regeneration reactor (100) is provided with a first outlet (211) of a circulating pump and an inlet (212) of the circulating pump, the first outlet (211) of the circulating pump is arranged below the inlet (212) of the circulating pump, the first outlet (211) of the circulating pump and the inlet (212) of the circulating pump are connected with each other outside the regeneration reactor (100) through a circulating pipeline, and the circulating pipeline is provided with the circulating pump (210).
4. The resin regeneration device for advanced treatment of drinking water as claimed in claim 1, wherein the resin inlet (120) is connected to the bottom of the regeneration reactor (100) through a resin inlet pipe (121), and the distance from the outlet (122) at the bottom of the resin inlet pipe (121) to the filter plate (110) is h1, wherein h1 is 150mm or more and 400mm or less.
5. The resin regeneration device for advanced treatment of drinking water according to claim 1, characterized in that the first outlet (211) of the circulation pump is arranged at the side of the regeneration reactor (100) far from the top end (111) of the filter plate provided with the filter plate (110); the height from the first outlet (211) of the circulating pump to the bottom (101) of the reactor is h2, wherein the height of h2 is more than or equal to 200mm and less than or equal to 300 mm.
6. The resin regenerating device for advanced treatment of drinking water as claimed in claim 1, wherein a gas-liquid separator (221) is provided on the pipeline between the air extracting opening (223) and the air extracting pump (220), a liquid return opening (222) is provided on the regeneration reactor (100), and the liquid return end of the gas-liquid separator (221) is connected with the liquid return opening (222) through a pipeline.
7. The advanced drinking water treatment resin regeneration device as claimed in claim 3, wherein a second outlet (213) of the circulation pump is arranged below the filter plate (110), the second outlet (213) of the circulation pump is connected with the first outlet (211) of the circulation pump in parallel, and the second outlet (213) of the circulation pump is arranged at the bottom (101) of the reactor.
8. A drinking water advanced treatment resin regeneration device according to any one of claims 1 to 7, characterized in that an ultrasonic liquid level sensor (151) is arranged on the regeneration reactor (100), and a high liquid level switch (152) and a low liquid level switch (153) are arranged below the filter plate (110).
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| CN201910902328.5A CN110560182B (en) | 2019-09-24 | 2019-09-24 | Advanced treatment resin regeneration device for drinking water |
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| CN110560182B true CN110560182B (en) | 2022-06-17 |
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