CN213171863U - Softened water treatment equipment - Google Patents
Softened water treatment equipment Download PDFInfo
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- CN213171863U CN213171863U CN202021950359.2U CN202021950359U CN213171863U CN 213171863 U CN213171863 U CN 213171863U CN 202021950359 U CN202021950359 U CN 202021950359U CN 213171863 U CN213171863 U CN 213171863U
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Abstract
The utility model discloses softened water treatment equipment, which comprises a raw water lifting system, a raw water filtering system, a softened water system and a controller; the raw water lifting system is connected with a tap water pipe and provides stable flow and pressure for equipment; the raw water filtering system comprises a mechanical filter for intercepting suspended particles in water; the water softening system comprises a sodium ion softener and a salt solution regeneration system, wherein the sodium ion softener is internally provided with ion exchange resin to intercept hardness components in raw water, and the salt solution regeneration system regenerates the ion exchange resin. The utility model discloses equipment wholeness is strong, filtration, exchange, regeneration process scientifically combine together, only needs to switch on advance, outlet pipe and power can move convenient to use. The full-automatic control is realized by adopting a multi-valve flow controller and matching with a distributor, a diaphragm valve and various control instruments, so that the completeness and the high efficiency of each process are ensured to the maximum extent, and the purposes of stabilizing and continuously discharging water and ensuring the quality of discharged water are achieved.
Description
Technical Field
The utility model belongs to the technical field of water treatment, in particular to softened water treatment equipment.
Background
In the conventional production process, the hardness of untreated tap water or underground water is high, and scale can be formed on the inner wall of the boiler when the untreated tap water or underground water is directly used in industrial production. After the heat exchanger is used for a long time, scales on the inner wall of the boiler are accumulated, so that the heat transfer performance is poor. Professional descaling is usually required to clean scale on the inner wall of the boiler, but if the descaling is not complete, the uneven heating of the inner wall of the boiler can cause accidents. Before industrial water is used, water softening treatment is usually required, namely calcium ions, magnesium ions and the like in the water are removed in advance to prevent scale from being generated in the later heating process. Therefore, there is a need to develop a water softening treatment device with high automation degree and high operation efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a demineralized water treatment device which is full-automatic, convenient to use and high in operation efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a softened water treatment apparatus characterized by: the system comprises a raw water lifting system, a raw water filtering system, a softened water system and a controller, wherein the raw water lifting system, the raw water filtering system and the softened water system are sequentially connected through pipelines, and the controller is electrically connected with the raw water lifting system, the raw water filtering system and the softened water system;
the raw water lifting system is connected with a tap water pipe and provides stable flow and pressure for equipment;
the raw water filtering system comprises a mechanical filter for intercepting suspended particles in water;
the water softening system comprises a sodium ion softener and a salt solution regeneration system, wherein a certain amount of ion exchange resin is filled in the sodium ion softener to intercept hardness components in raw water, and the salt solution regeneration system regenerates the ion exchange resin.
Furthermore, the sodium ion softener comprises a tank body, wherein the tank body is provided with a filtered water inlet, a softened water outlet, a backwashing water inlet and a backwashing water outlet, each water inlet and outlet is provided with a diaphragm valve and is electrically connected with the controller, and the softened water outlet is provided with a rotor flow meter for monitoring the water yield of softened water and is electrically connected with the controller.
Furthermore, salt solution regeneration system includes that the salt dissolves case, salt liquid filter, salt liquid batch meter, salt liquid sprayer and softens the water tank, salt dissolves case, salt liquid filter and salt liquid batch meter pipeline in proper order and links to each other, soften water tank and salt liquid batch meter all connect the salt liquid sprayer, the salt liquid sprayer is connected sodium ion and is softened the ware.
Furthermore, the mechanical filter comprises a tank body, and a raw water inlet, a filtered water outlet, a cleaning water inlet, a backwashing sewage outlet and an air source inlet are formed in the tank body; a water distributor, a filter layer, a water collecting device and an air distributing device are arranged in the tank body from top to bottom, a filter material is arranged in the filter layer, the position of the water distributor is higher than the maximum backwashing expansion height of the filter layer so as to prevent the filter material from leaking during backwashing, the water collecting device is in a porous plate filter cap type, supports the filter material and ensures uniform water distribution and air distribution during backwashing, and the air distributing device is connected with a compressed air pipe; and each water inlet and outlet and the air source inlet are provided with control valves and are electrically connected with the controller to control the opening and closing of each inlet and outlet.
Furthermore, the mechanical filter is provided with a plurality of mechanical filters which are arranged between the raw water lifting system and the softened water system in parallel.
Still further, the sodium ion softener is provided with a plurality of sodium ion softeners, and the sodium ion softeners are arranged between the mechanical filter and the salt solution regeneration system in parallel.
Furthermore, the raw water lift system comprises a raw water lift pump, a pipeline filter and a raw water lift pipeline system, wherein the pipeline filter adopts grids to intercept larger mechanical impurities in raw water.
The beneficial effects of the utility model reside in that:
1. the utility model discloses equipment wholeness is strong, filtration, exchange, regeneration process scientifically combine together, only needs to switch on advance, outlet pipe and power can move convenient to use.
2. The utility model discloses the controller of equipment adopts many valves flow controller, is equipped with distributor, diaphragm valve and various control instrument and realizes full automatic control to each process's of furthest's assurance integrality and high efficiency reach the purpose of stabilizing continuous play water and guaranteeing play water quality of water.
3. The utility model discloses the raw water lift system, raw water filtration system and the softened water system of equipment adopt during a plurality of parallelly connected modes insert the water treatment pipeline, can move simultaneously or an operation alone, when needs regeneration or washing or trouble maintenance, do not influence the continuity of whole equipment operation, the operating efficiency is high.
Drawings
FIG. 1 is a schematic view of the structure of the softened water treatment apparatus of the present invention;
wherein: 1-raw water lift pump, 2-mechanical filter, 3-sodium ion softener, 4-salt dissolving tank, 5-salt liquid filter, 6-salt liquid metering tank, 7-salt liquid ejector, 8-softening water tank, 9-rotor flow meter, 10-diaphragm valve, 11-water pump and 12-electromagnetic valve.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific embodiments. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims.
As shown in fig. 1, a softened water treatment device comprises a raw water lifting system, a raw water filtering system, a softened water system and a controller, wherein the raw water lifting system, the raw water filtering system and the softened water system are sequentially connected through pipelines, and the controller is electrically connected with the raw water lifting system, the raw water filtering system and the softened water system.
The controller adopts a multi-valve flow controller and is matched with a distributor to realize full-automatic control of each system.
The raw water lifting system is connected with a tap water pipe, and provides stable flow and pressure for equipment. The raw water lifting system comprises a raw water lifting pump 1, a pipeline filter and a raw water lifting pipeline system, wherein the pipeline filter adopts grids to intercept larger mechanical impurities in raw water, and the blockage of subsequent treatment equipment and pipelines is prevented.
The raw water lifting system is provided with a plurality of groups in parallel, when one group fails or needs to clean grids and clean impurities, other groups can still normally operate, and the operation continuity of the whole equipment is not affected.
The raw water filtration system includes a mechanical filter 2 that intercepts suspended particles in water. The mechanical filter 2 comprises a tank body, and a raw water inlet, a filtered water outlet, a cleaning water inlet, a backwashing sewage discharge outlet and an air source inlet are formed in the tank body. The tank body is internally provided with a water distributor, a filtering layer, a water collecting device and an air distributing device from top to bottom. Be equipped with the filter material in the filtering layer, the water-locator is the horn mouth formula, for preventing that the granule is littleer or running the material when the backwash because of the filter material that the wearing and tearing attenuate, the position is arranged to the horn mouth is higher than the biggest backwash inflation height of filtering layer, prevents that the granule is littleer or runs the material when the backwash because of the filter material that the wearing and tearing attenuate. The water collecting device is in a porous plate filter cap type, plays a role in supporting the filter material, preventing the filter material from losing and ensuring uniform water distribution and air distribution during backwashing. The air distribution device is connected with the compressed air pipe. The water inlet and outlet and the air source inlet are provided with control valves and are electrically connected with a controller to control the opening and closing of the inlet and outlet.
The filter material is preferably an anthracite and quartz sand filter material, the anthracite is filled in the upper layer, the quartz sand is filled in the lower layer, the suspended matters in water are intercepted by utilizing the characteristics of large specific gravity, small stacking pore and strong interception force of the filter material, the adsorption capacity of the surface area of the whole filter layer is fully exerted, the dirt interception of the filter layer is utilized to the maximum extent, and the good effect of removing the suspended matters is achieved.
The raw water passes through the water distributor at the upper part, penetrates through the filtering layer and is discharged from the filtered water outlet at the bottom of the filter through the water collecting device. The filter layer needs to be backwashed when the interception capacity is large or the effluent quality is deteriorated. The air distribution device is connected with a compressed air pipe, a cleaning air source and a water source enter from the lower part of the filter, the filter materials are mutually scrubbed in the filter by utilizing a scattered and compact filter layer of the compressed air, then the cleaning water is used for carrying the dirt out of the filter, and finally the filtering function is realized.
Work flow of the mechanical filter 2:
a filtration
Raw water to be filtered enters the water distributor from the upper part of the mechanical filter 2, suspended matters in the water pass through the filtering layer and are intercepted and adsorbed, and the filtered water is discharged from a filtered water outlet at the bottom of the device through the water collecting device.
B backwashing
The back washing comprises the procedures of water drainage, air washing, air-water shuffling, water washing and the like. The entering of the flow can be carried out in two modes of a, setting of filtration cycle time and b, and setting of filtration differential pressure.
1. Draining: the drainage valve is opened to discharge the water in the filter tank, and the automatic exhaust valve sucks air to prepare for air blast.
2. Air washing: and opening the air source inlet valve, and simultaneously starting the air compressor to enable the filter materials to rub against each other in the filter tank so as to separate the dirt attached to the filter materials from the filter materials.
3. Air-water shuffling: and (4) starting a backwashing water pump, and ejecting the washed dirt to the upper part of the filter layer by using water.
4. Water washing: and (4) discharging the dirt scrubbed by the scrubbing from the backwashing sewage outlet out of the filter by using clean water, and regenerating the filter material to restore the original filtering function.
5. And (3) standing: after backwashing, the filter material is automatically layered to recover the original characteristics by utilizing the different specific gravity of the filter material.
A plurality of mechanical filters 2 are arranged in a raw water filtering system of the equipment and are arranged between a raw water lifting system and a softened water system in parallel. A plurality of mechanical filters 2 are operated in parallel to discharge water simultaneously, or operated individually. When the filtering layer of any mechanical filter 2 needs to be backwashed due to large interception capacity or deteriorated effluent quality, the operation is automatically quitted, a backwashing program is started, and the whole equipment adopts a controller for full-automatic control.
The water softening system comprises a sodium ion softener 3 and a salt solution regeneration system, wherein a certain amount of ion exchange resin is filled in the sodium ion softener 3 to intercept hardness components in raw water, and the salt solution regeneration system regenerates the ion exchange resin. The sodium ion softener 3 comprises a tank body, wherein a filtered water inlet, a softened water outlet, a backwashing water inlet and a backwashing water outlet are arranged on the tank body, diaphragm valves 10 are arranged at the water inlets and the water outlets and are electrically connected with a controller, a rotor flowmeter 9 is arranged at the softened water outlet to monitor the water outlet of the softened water and transmit signals to a multi-valve flow controller, when the accumulated water outlet reaches a preset value, the multi-valve flow controller sends out control signals to start a distributor of the tank, and the distributor directly commands the opening and closing of the diaphragm valves 10 according to the preset value to realize regeneration.
When raw water containing hardness flows through the ion exchange resin, the following ion exchange reaction occurs:
Na2r (resin) + Ca2+---Ca-R+2Na+
Na2-R (resin) + Mg2+---Mg-R+2Na+
The hardness components (mainly carbonate and sulfate of calcium and magnesium ions) in the raw water can be basically and completely intercepted through the ion exchange reaction, so that the hardness of the discharged water can meet the requirement. After a certain time of exchange reaction, when the resin exchange capacity is close to saturation, i.e. under the operation of the diaphragm valve 10, back flushing is performed and then the resin is regenerated with brine.
Salt solution regeneration system includes that salt dissolves case 4, salt liquid filter 5, salt liquid batch meter 6, salt liquid sprayer 7 and softens water tank 8, and salt dissolves case 4, salt liquid filter 5 and salt liquid batch meter 6 pipeline in proper order and links to each other, and softening water tank 8 and salt liquid batch meter 6 all connect salt liquid sprayer 7, are equipped with solenoid valve 12 on the salt liquid sprayer 7 and connect sodium ion softener 3.
The salt solution metering box 6 is provided with a magnetic floater liquid level meter to control the start and stop of the water pump 11, and the pump is started to supplement the salt solution when the salt solution is at a low liquid level. And stopping the pump when the liquid level is high. And the salt liquid metering box 6 is provided with an electric valve which is controlled by a multi-valve flow controller, and the electric valve and the diaphragm valve 10 are opened simultaneously in the salt sucking stage and are closed automatically in the replacement process.
In order to reduce the labor intensity of operators, the equipment adopts a concentrated wet salt storage process, the salt dissolving tank 4 can store salt for about ten days at a time, the operation of the whole system is not influenced, and saturated salt solution in the salt dissolving tank 4 is conveyed to the salt filter 5 through the water pump 11 to be filtered and then enters the salt solution metering tank 6. The salt solution metering box 6 is in a normal full state and can be regenerated at any time. During regeneration, saturated salt water in the salt solution metering tank 6 and softened water in the softened water tank 8 are conveyed into the salt solution ejector 7 through the water pump 11, mixed to a preset concentration (5 percent), and then enter the sodium ion softener 3 for countercurrent regeneration. After the salt liquid filter 5 is used for a certain time, the pressure drop is obviously increased, and at the moment, the salt liquid filter can be subjected to semi-automatic backwashing by using tap water. When the liquid level of salt dissolving tank 4 and salt solution batch meter 6 changed, the automatic moisturizing of 4 automatic water supply of steerable salt dissolving tank of controller and water pump 11 opened and stop, guaranteed the salt and dissolved the invariant of 6 liquid levels of case 4 and salt solution batch meter. Therefore, the problems of high labor intensity, troublesome management, salt pipeline blockage, resin pollution and the like of the traditional manual salt adding operation are thoroughly solved.
The ion exchange process, the salt regeneration process and the back washing process are automatically completed by controlling various control valves, so that the completeness and the high efficiency of each process are ensured to the maximum extent, and the aims of stabilizing continuous water outlet and ensuring the quality of the outlet water are fulfilled.
The working states of the sodium ion softener 3 are as follows in sequence: operation → regeneration (backwashing, salt absorption, replacement, and forward washing) → operation.
A. Backwashing
Earlier with water backwash from bottom to top before regeneration, the purpose of backwash has two, firstly, through the backwash, the resin layer that compresses tightly in the messenger operation is not hard up, be favorable to resin particle and regeneration liquid fully to contact, secondly, clear away when operation in the resin top layer accumulation suspended solid and the resin surface suspended solid some garrulous resin particles also can be along with backwash water discharge, thus, the water flow resistance of exchanger can not be bigger and bigger, complete resin is not washed away when guaranteeing the backwash, when designing sodium ion softener 3, should leave certain backwash space on the resin layer, backwash space that backwash intensity required more is just bigger, 50% resin layer height is chooseed for use as backwash inflation height to the design usually.
B. Regeneration
In the regeneration, the regeneration liquid is fed into the sodium ion softener 3 after the concentrated salt solution and the soft water are mixed to a predetermined concentration (5%) by the salt solution injector 7. The regenerant concentration can be adjusted by a valve. The softened water outlet of each sodium ion softener 3 is provided with a sampling valve for an inspector to sample and test at any time.
The higher the purity of the regenerant and the higher the regeneration degree of the resin, the less the ion leakage amount of the effluent, so the regeneration degree can be improved by improving the purity of the regenerant and using softened water-soluble salt.
Generally, the smaller the regeneration liquid flow rate, the better the regeneration effect. However, too low regeneration liquid flow rate can cause too long regeneration time, and the regenerant is easy to bypass the surface of the resin for regeneration. Therefore, regeneration liquid flow rates of 0.25-0.9gpm/ft3 (or a forward washing flow rate of 4-6m/h, and a counter-current regeneration of 2-3m/h) are generally required.
According to the ion balance principle, the concentration of the regenerating solution is increased, so that the exchange capacity of the resin can be improved, but under the condition of a certain dosage of the regenerating agent, the concentration of the regenerating solution is too high, so that the contact time of the regenerating solution and the resin is shortened, and the regeneration effect is reduced, and generally, the concentration of the salt solution is preferably controlled to be about 10%.
The exchange of the resin is theoretically carried out in an equivalent amount, i.e., 1mol of the regenerant can recover an exchange capacity of 1mol, but in practice, the consumption of the regenerant is much larger than the theoretical value. Experiments prove that the more the consumption of the regenerant is, the larger the working exchange capacity of the obtained resin is, and the better the effluent quality is. However, as the amount of regenerant used increases, the working exchange capacity increases less and the economics decrease. Therefore, the regeneration salt consumption should be selected as economically and reasonably as possible according to different raw water qualities and under the condition of ensuring certain exchange capacity and water quality. In the water softener of the U.S. general low pressure boiler, 1 liter of resin was regenerated with 240g/l salt.
C. Replacement of
After the regeneration liquid is completely fed, salt liquid which does not participate in regeneration exchange exists in the expansion space of the sodium ion softener 3 and the resin layer, and in order to fully utilize the salt liquid, clean water with the flow rate less than or equal to that of the regeneration liquid is adopted for cleaning, so that the clean water is not mixed with the regeneration liquid. The amount of water to be washed is generally 0.5 to 1 times the volume of the resin.
D. Washing for use in the front
The aim is to remove the residual regeneration waste liquid in the lipid layer, and the regeneration waste liquid is usually cleaned at a normal operation flow rate until the effluent is qualified.
A plurality of sodium ion softeners 3 are arranged in a water softening system of the equipment and are arranged between the mechanical filter 2 and a salt solution regeneration system in parallel. A plurality of sodium ion softeners 3 are operated in parallel to discharge water simultaneously or operated individually. When any sodium ion softener 3 is saturated by exchange, the operation is automatically stopped, and a regeneration program is started. The whole equipment adopts a controller for full-automatic control, and the operation end point is controlled by flow control, so that the countercurrent regeneration process is realized.
The application adopts a full-automatic control mode. The integrated controller is arranged on site, and a multi-valve flow controller is adopted and matched with a distributor, a diaphragm valve and various control instruments to realize full-automatic control. Each soft water tank is provided with a flow meter probe, the flow is automatically detected, signals are transmitted to the multi-valve flow controller, when the accumulated water yield of a single device reaches a preset value, the multi-valve flow controller sends out control signals, a distributor of the tank is started, and the distributor directly commands the opening and closing of each diaphragm valve according to the preset value, so that regeneration is realized. In addition, the system can ensure that the regeneration of two devices cannot occur simultaneously in the softening system.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (8)
1. A softened water treatment apparatus characterized by: the system comprises a raw water lifting system, a raw water filtering system, a softened water system and a controller, wherein the raw water lifting system, the raw water filtering system and the softened water system are sequentially connected through pipelines, and the controller is electrically connected with the raw water lifting system, the raw water filtering system and the softened water system;
the raw water lifting system is connected with a tap water pipe and provides stable flow and pressure for equipment;
the raw water filtering system comprises a mechanical filter (2) for intercepting suspended particles in water;
the water softening system comprises a sodium ion softener (3) and a salt solution regeneration system, wherein a certain amount of ion exchange resin is filled in the sodium ion softener (3) to intercept hardness components in raw water, and the salt solution regeneration system regenerates the ion exchange resin.
2. The softened water treatment apparatus according to claim 1, characterized in that: the sodium ion softener (3) comprises a tank body, wherein a filtered water inlet, a softened water outlet, a backwashing water inlet and a backwashing water outlet are arranged on the tank body, diaphragm valves (10) are arranged at the water inlets and the water outlets and are electrically connected with the controller, and a rotor flow meter (9) is arranged at the softened water outlet to monitor the water yield of the softened water and is electrically connected with the controller.
3. The softened water treatment apparatus according to claim 1, characterized in that: salt solution regeneration system includes that salt dissolves case (4), salt liquid filter (5), salt liquid batch meter (6), salt liquid sprayer (7) and softens water tank (8), salt dissolves case (4), salt liquid filter (5) and salt liquid batch meter (6) and pipeline links to each other in proper order, soften water tank (8) and salt liquid batch meter (6) and all connect salt liquid sprayer (7), sodium ion softener (3) is connected in salt liquid sprayer (7).
4. The softened water treatment apparatus according to claim 1, characterized in that: the mechanical filter (2) comprises a tank body, and a raw water inlet, a filtered water outlet, a cleaning water inlet, a backwashing sewage outlet and an air source inlet are formed in the tank body; a water distributor, a filter layer, a water collecting device and an air distributing device are arranged in the tank body from top to bottom, a filter material is arranged in the filter layer, the position of the water distributor is higher than the maximum backwashing expansion height of the filter layer so as to prevent the filter material from leaking during backwashing, the water collecting device is in a porous plate filter cap type, supports the filter material and ensures uniform water distribution and air distribution during backwashing, and the air distributing device is connected with a compressed air pipe; and each water inlet and outlet and the air source inlet are provided with control valves and are electrically connected with the controller to control the opening and closing of each inlet and outlet.
5. The softened water treatment apparatus according to claim 1, characterized in that: the mechanical filters (2) are arranged in a plurality and are arranged between the raw water lifting system and the softened water system in parallel.
6. The softened water treatment apparatus according to claim 1, characterized in that: the sodium ion softeners (3) are arranged in a plurality and are arranged between the mechanical filter (2) and the salt solution regeneration system in parallel.
7. The softened water treatment apparatus according to claim 1, characterized in that: the raw water lifting system comprises a raw water lifting pump (1), a pipeline filter and a raw water lifting pipeline system, wherein the pipeline filter adopts grids to intercept larger mechanical impurities in raw water.
8. The softened water treatment apparatus according to claim 1, characterized in that: the controller adopts a multi-valve flow controller and is matched with a distributor to control each system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021950359.2U CN213171863U (en) | 2020-09-09 | 2020-09-09 | Softened water treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021950359.2U CN213171863U (en) | 2020-09-09 | 2020-09-09 | Softened water treatment equipment |
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| CN213171863U true CN213171863U (en) | 2021-05-11 |
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| CN202021950359.2U Active CN213171863U (en) | 2020-09-09 | 2020-09-09 | Softened water treatment equipment |
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