Salt adding system of water softener

Abstract

The utility model relates to a salt adding system for a water softener, which structurally comprises a first salt barrel for storing a saturated salt solution and a second salt barrel for storing industrial salt, the second salt barrel is communicated with the first salt barrel through an overflow communicating pipe, and the first salt barrel is connected with a salt absorbing / supplementing port of the water softener through a first pipeline. The bottom end of the second pipeline extends to the inner bottom of the second salt barrel and extends along the bottom surface of the second salt barrel, holes are uniformly formed in the second pipeline part extending along the bottom surface of the second salt barrel to form a water distributor, and the top end of the second pipeline is externally connected with a soft water replenishing point. After the salt absorption process of the water softener is completed, soft water flows out through small holes of a water distributor formed at the bottom end of the second pipeline for water replenishing and is fully mixed with industrial salt to form a saturated salt solution, and the saturated salt solution overflows into the first salt barrel through the overflow communicating pipe for preparation of the saturated salt solution in the first salt barrel. The device has the advantages that the labor cost can be saved, the industrial salt amount can be saved, and the effluent quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a water softener salt adding system, belonging to the technical field of water softeners. Background Art

[0002] According to the "Industrial Boiler Water Quality" standard, boiler feed water hardness must be ≤0.03mmol / L. Softened water for boiler feed is typically produced using ion exchange equipment (water softeners). These softeners utilize 001×7 strongly acidic cation exchange resin. Industrial salt is used to create a saturated salt solution for softener regeneration. To ensure stable water production, a dual-tank softening system is employed for continuous softening.

[0003] In the prior art, a water softener is generally equipped with a salt tank (such as Figure 1 As shown in the figure, without a stirring pump or a stirring air source, the salt solution in the salt tank cannot be guaranteed to be saturated during softener regeneration. Furthermore, for reasons of cost-effectiveness and ease of procurement, water softener regeneration typically uses refined industrial salt or uniodized table salt, rather than large-grain industrial salt. In these cases, during the regeneration process, unsaturated salt solution and undissolved salt at the bottom of the water softener will be drawn into the resin tank, affecting resin regeneration and resulting in salt waste. To maximize salt utilization, salt must be added to the salt tank after each softener regeneration, requiring manual or mechanical stirring to dissolve the salt, which is time-consuming and labor-intensive. Failure to manually add salt to create a saturated salt solution after softener regeneration will affect the next softener regeneration, thereby compromising the quality of the softened water supply. After the water softener is regenerated, during the salt tank water replenishment stage, the water replenishment amount of the salt tank is different when the water softener is in the water production and non-water production states. In order to ensure the regeneration effect of the water softener, the storage capacity of the saturated salt solution will be increased, resulting in a waste of saturated salt solution. Utility Model Content

[0004] The utility model provides a water softener salt adding system, which aims to overcome the above-mentioned deficiencies in the prior art, save labor costs and industrial salt usage, and ensure the water quality of the water.

[0005] The technical solution of the utility model is a water softener salt addition system, which includes a first salt tank for storing saturated salt solution and a second salt tank for storing industrial salt. The second salt tank is connected to the first salt tank via an overflow connecting pipe. The first salt tank is connected to the water softener salt absorption / water replenishment port via a first pipe. The bottom end of the second pipe extends to the bottom of the second salt tank and extends along the bottom surface of the second salt tank. The second pipe portion extending along the bottom surface of the second salt tank is evenly perforated to form a water distributor. The top of the second pipe is externally connected to a soft water replenishment point. After the salt absorption process of the water softener is completed, soft water flows out through the small holes of the water distributor formed at the bottom of the second pipe for replenishment, is fully mixed with the industrial salt, and forms a saturated salt solution. The water overflows into the first salt tank through the overflow connecting pipe to prepare the saturated salt solution in the first salt tank.

[0006] Preferably, an anti-corrosion liquid level transmitter is installed at the bottom of the first salt tank, and an electric valve is installed near the top of the second pipeline. The anti-corrosion liquid level transmitter and the electric valve are connected to the liquid level controller through a signal connection. During water softener regeneration, if the saturated salt solution in the first salt tank falls below the salt solution control level, the level controller activates the electric valve of the second salt tank after the softener completes the salt absorption process, causing the saturated salt solution to overflow into the first salt tank. When the saturated salt solution in the first salt tank reaches the salt solution control level, the level controller closes the electric valve, completing the preparation of the saturated salt solution in the first salt tank.

[0007] Preferably, a salt box shelf is provided at the bottom of the first salt barrel, and the bottom of the salt well located inside the first salt barrel is installed on the salt box shelf. The first pipeline extends upward from the bottom end of the salt well to the outside of the first salt barrel and is connected to the salt intake / water supply port of the water softener through the top end. A salt valve is provided at the bottom end of the first pipeline, and a one-way valve is provided at the top end of the first pipeline.

[0008] Advantages of this utility model: 1) It can save labor costs: it is only necessary to regularly check the balance of industrial salt and add it to the control height of industrial salt, which can reduce the frequency of adding industrial salt; the water replenishment of the salt barrel and the preparation of saturated salt solution can be automated, and only regular inspections are required, which reduces the investment in labor costs.

[0009] 2) Saving of industrial salt: The concentration and volume of the saturated salt solution used for regeneration are more accurate, which will not cause waste of industrial salt; the softener will not absorb undissolved industrial salt during regeneration, which can reduce the input of industrial salt.

[0010] 3) Guaranteed water quality: When the water softener is regenerated, the concentration and capacity of industrial salt are relatively stable, which can ensure the regeneration effect of the resin and the stability of the water quality of the regenerated water softener to meet the requirements of back-end use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of a prior art water softener salt adding system.

[0012] Figure 2 It is a structural diagram of the salt adding system of the water softener of the utility model.

[0013] In the figure, 1 is the salt barrel, 2 is the salt well, 3 is the salt box shelf, 4 is the salt valve, 5 is the pipeline, 6 is the saturated salt solution, 61 is the salt solution level control, 7 is industrial salt, 8 is the first salt barrel, 9 is the second salt barrel, 10 is the first pipeline, 101 is the one-way valve, 11 is the overflow connecting pipe, 12 is the anti-corrosion liquid level transmitter, 13 is the liquid level controller, 14 is the second pipeline, and 141 is the electric valve. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the embodiments and specific implementation methods.

[0015] like Figure 2 As shown, a water softener salt addition system includes a first salt tank 8 for storing a saturated salt solution 6 and a second salt tank 9 for storing industrial salt 7. The second salt tank 9 is connected to the first salt tank 8 through an overflow connecting pipe 11. The first salt tank 8 is connected to the water softener salt intake / water replenishment port through a first pipeline 10. An anti-corrosion liquid level transmitter 121 is installed at the bottom of the first salt tank 8. The bottom end of the second pipeline 14 extends to the bottom of the second salt tank 9 and extends along the bottom surface of the second salt tank 9. The second pipeline 14 extending along the bottom surface of the second salt tank 9 is evenly opened with holes to form a water distributor. The top of the second pipeline 14 is externally connected to a soft water replenishment point. An electric valve 141 is provided near the top of the second pipeline 14. The anti-corrosion liquid level transmitter 121 and the electric valve 141 are connected to the liquid level controller 13 for signal connection.

[0016] Specifically, a salt box shelf 3 is provided at the bottom of the first salt barrel 8, and the bottom of the salt well 2 located inside the first salt barrel 8 is installed on the salt box shelf 3. The first pipeline 10 extends upward from the bottom end of the salt well 2 to the outside of the first salt barrel 8 and is connected to the salt intake / water supply port of the water softener through the top end. A salt valve 4 is provided at the bottom end of the first pipeline 10, and a one-way valve 101 is provided at the top end of the first pipeline 10.

[0017] According to the above structure, when the water softener is regenerated, the saturated salt solution 6 in the first salt barrel 8 is lower than the salt solution control liquid level 61, and the water softener is in the salt absorption process. After waiting for the salt absorption process to be completed, the liquid level controller 13 starts the electric valve 141 of the second salt barrel 9, and the replenished soft water flows out through the small holes of the water distributor formed at the bottom of the second pipeline 14, is fully mixed with the industrial salt 7 to form a saturated salt solution 6, and overflows into the first salt barrel 8 through the overflow connecting pipe 11. When the saturated salt solution 6 in the first salt barrel 8 reaches the salt solution control liquid level 61, the liquid level controller 13 closes the electric valve 141 to complete the preparation of the saturated salt solution 6 in the first salt barrel 8.

[0018] The signal transmission and control principles between the liquid level controller 13, the anti-corrosion liquid level transmitter 121, and the electric valve 141 are outside the scope of this application and can be implemented using existing control methods. Preferably, the liquid level controller 13 may be equipped with a time relay. During the water softener's salt absorption process, the time relay of the liquid level controller 13 begins timing. After the absorption process is complete, at the time set by the time relay (which is adjustable), the liquid level controller 13 activates the electric valve 141, thereby implementing a delayed relay output function and allowing the salt solution control level 61 to be adjusted.

[0019] The liquid level controller 13 may also be preferably configured with functions such as 485 communication and high and low liquid level alarms.

[0020] The components described above are all prior art, and those skilled in the art can use any model and existing design that can achieve their corresponding functions.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A water softener salt adding system, characterized in that: The invention comprises a first salt barrel (8) for storing a saturated salt solution (6) and a second salt barrel (9) for storing industrial salt (7). The second salt barrel (9) is connected to the first salt barrel (8) through an overflow connecting pipe (11). The first salt barrel (8) is connected to a salt intake / water replenishment port of a water softener through a first pipeline (10). The bottom end of the second pipeline (14) extends to the bottom of the second salt barrel (9) and extends along the bottom surface of the second salt barrel (9). The second pipeline (14) extending along the bottom surface of the second salt barrel (9) is evenly opened with holes to form a water distributor. The top end of the second pipeline (14) is externally connected to a soft water replenishment point.

2. A water softener salt adding system according to claim 1, characterized in that: The first salt barrel (8) is provided with an anti-corrosion liquid level transmitter (121) at the bottom thereof, and an electric valve (141) is provided near the top of the second pipeline (14). The anti-corrosion liquid level transmitter (121) and the electric valve (141) are connected to the liquid level controller (13) for signal transmission.

3. A water softener salt adding system as claimed in claim 1, characterized in that: The bottom of the first salt barrel (8) is provided with a salt box shelf (3), the bottom of the salt well (2) located inside the first salt barrel (8) is installed on the salt box shelf (3), the first pipeline (10) extends upward from the bottom end of the salt well (2) to the outside of the first salt barrel (8) and is connected to the salt intake / water supply port of the water softener through the top end, the bottom end of the first pipeline (10) is provided with a salt valve (4), and the top end of the first pipeline (10) is provided with a one-way valve (101).

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