A pure water machine TDS value water path adjusting mechanism

Abstract

The utility model discloses a pure water machine TDS value water route adjusting mechanism belongs to pure water machine water route component technical field. The utility model discloses a pipeline is led out at the export of the booster pump of pure water machine, the pipeline is connected with an adjusting valve after reverse check valve, pressure reducing valve, is connected with the import pipe of active carbon filter T33 through three -way joint after adjusting valve. Through the pressure reducing valve parameter and adjusts to 0.45MPa, guarantees the pressure reducing valve water outlet pressure value stability in 0.45MPa after again accessing the adjusting valve, and the pure water water route of adjusting valve water outlet is connected to the membrane, and the scheme is between the range of 40PPM to 130PPM of pure water TDS requirement, and the adjusting error value is within 20PPM, satisfies the demand of user.

Description

Technical Field

[0001] This utility model belongs to the technical field of water circuit components of pure water machines, and is particularly related to a water circuit adjustment mechanism for TDS value of a pure water machine. Background Technology

[0002] TDS (Total Dissolved Solids) represents the total dissolved solids in water, measured in PPM (1 mg / L). Generally, the purer the water, the lower the TDS value, and vice versa. However, some beverage production does not require particularly pure water, necessitating the use of TDS adjustment technology to adjust the water from pure water systems to meet beverage production requirements.

[0003] The TDS adjustment of commonly used water purifiers on the market is achieved by mixing a portion of the higher TDS mixed water (filtered by the pre-filter) into the purified water with a lower TDS value produced by the water purifier. There are two main water paths that can achieve this:

[0004] (1) A water path is branched off between the pre-filter of the water purifier and the inlet solenoid valve. This path passes through a check valve and then a TDS regulating valve before being connected to the purified water after the membrane of the water purifier. The TDS value of the purified water is adjusted by increasing or decreasing the flow rate of the mixed water through the regulating valve. This water path has the following disadvantages: the water pressure passing through the pre-filter is generally low, lower than the pressure value of the water storage tank equipped at the purified water outlet, resulting in unstable TDS adjustment or even inability to adjust the TDS value. The error of the TDS value after adjustment is always above 80PPM.

[0005] (2) A branch line of water is connected to the outlet pipe of the booster pump before the membrane of the pure water machine. After passing through a check valve and then a TDS regulating valve, the pure water is connected to the pure water after the membrane of the pure water machine. The TDS value of the pure water is adjusted by increasing or decreasing the flow rate of the mixed water through the regulating valve. This water circuit has the following disadvantages: the TDS value of the pure water can be flexibly adjusted, but as the pure water machine is used for a long time, the pressure of the booster pump increases, which causes the adjusted TDS value to fluctuate and become unstable. The error of the adjusted TDS value is always above 60PPM. Utility Model Content

[0006] In view of the problems existing in the background technology, this utility model proposes a water circuit adjustment mechanism for a water purifier that can flexibly adjust the TDS value of purified water.

[0007] Therefore, this utility model adopts the following technical solution: a water circuit adjustment mechanism for the TDS value of a pure water machine, wherein the inlet pipe passes through a PP cotton filter, a precision activated carbon filter, and a combined filter formed by the combination of the PP cotton filter and the precision activated carbon filter; after filtration, at least one outlet pipe is led out; each outlet pipe is connected to an RO membrane reverse osmosis filter via a booster pump; the wastewater filtered by the RO membrane reverse osmosis filter is connected to the wastewater pipe via a pipeline through a wastewater proportioner; the pure water filtered by the RO membrane reverse osmosis filter is divided into two paths via a pipeline through a check valve; one path is connected to a pressure storage tank via a pressure ball valve; the other path is connected to the activated carbon filter T33 via a high-pressure switch as a direct drinking water outlet; the characteristic is that a pipeline is led out from the outlet of the booster pump, and this pipeline is connected to a regulating valve after passing through a check valve and a pressure reducing valve; after passing through the regulating valve, it is connected to the inlet pipe of the activated carbon filter T33 via a three-way connector.

[0008] This invention achieves the following beneficial effects: A pipeline is led out from the pure water machine's booster pump. This pipeline passes through a check valve and a pressure reducing valve, then connects to a regulating valve. The pressure reducing valve's parameter is adjusted to 0.45 MPa, ensuring the outlet pressure of the pressure reducing valve remains stable at 0.45 MPa before connecting to the regulating valve. The outlet of the regulating valve is connected to the post-membrane pure water circuit. This solution maintains an adjustment error within 20 PPM within the pure water TDS range of 40 PPM to 130 PPM, meeting user needs. This invention allows for more flexible and stable adjustment of the pure water's TDS value, reducing the adjustment error by a factor of three, further meeting user requirements. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0010] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. The described embodiments are only for illustration and explanation of this utility model and do not constitute the only limitation of this utility model.

[0011] like Figure 1As shown, the TDS value regulating mechanism of the pure water machine in this embodiment has an inlet pipe 1 that passes through a PP cotton filter 2, a precision activated carbon filter element 3, and a combined filter 4 formed by the combination of the PP cotton filter and the precision activated carbon filter element. After the combined filter, the pipeline is connected to an inlet solenoid valve 5. Two outlet pipes are led out, each of which is connected to an RO membrane reverse osmosis filter 7 through a booster pump 6. The wastewater filtered by the RO membrane reverse osmosis filter 7 is connected to the wastewater pipe 1 through a pipeline via a wastewater proportioner 8. The pure water filtered by the RO membrane reverse osmosis filter is divided into two paths through a pipeline via a check valve 9. One path is connected to a pressure storage tank 16 through a pressure ball valve 15, and the other path is connected to an activated carbon filter 11 (T33) through a high-pressure switch 10 as a direct drinking water outlet. A pipeline is led out from the outlet of the booster pump 6. This pipeline passes through a first check valve 12 and a pressure reducing valve 14 and is connected to a regulating valve 13. After the regulating valve 13, it is connected to the inlet pipe of the activated carbon filter through a three-way connector. The other connection port of the tee is connected to the outlet of the combination filter 4 via the second check valve 19.

[0012] Additionally, an emergency switch is connected between the second check valve and the combined filter. Two outlet pipes lead out after filtration by the combined filter, and the wastewater from these two pipes, filtered by the RO membrane reverse osmosis filter, converges at one point via a wastewater proportioner. This system is suitable for all reverse osmosis water purifiers requiring TDS value adjustment. This invention uses a pipeline led from the pure water machine's booster pump. This pipeline passes through a check valve and a pressure reducing valve, then connects to a regulating valve. The pressure reducing valve parameter is adjusted to 0.45 MPa, ensuring the pressure at the pressure reducing valve outlet is stable at 0.45 MPa before connecting to the regulating valve. The regulating valve outlet is connected to the post-membrane pure water circuit. This solution allows for adjustment error within 20 PPM within the pure water TDS requirement range of 40 PPM to 130 PPM, meeting user needs. This invention enables more flexible and stable adjustment of the pure water TDS value, reducing adjustment error by three times, better meeting user requirements.

[0013] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A TDS (Total Dissolved Solids) water circuit regulating mechanism for a pure water machine, wherein the inlet pipe passes through a PP cotton filter, a precision activated carbon filter, and a combined filter formed by the PP cotton filter and the precision activated carbon filter; after filtration, at least one outlet pipe is led out; each outlet pipe is connected to an RO (Reverse Osmosis) membrane filter via a booster pump; wastewater filtered by the RO membrane filter is connected to a wastewater pipe via a pipeline through a wastewater proportioner; pure water filtered by the RO membrane filter is divided into two paths via a pipeline through a check valve; one path is connected to a pressure storage tank via a pressure ball valve, and the other path is connected to an activated carbon filter via a high-pressure switch as a direct drinking water outlet; characterized in that: A pipeline is led out from the outlet of the booster pump. This pipeline passes through a check valve and a pressure reducing valve, and then connects to a regulating valve. After passing through the regulating valve, it is connected to the inlet pipe of the activated carbon filter through a tee connector.

2. The TDS value regulating mechanism for a pure water machine according to claim 1, characterized in that: The other connection port of the three-way connector is connected to the outlet of the combined filter via a check valve.

3. The TDS value regulating mechanism for a pure water machine according to claim 2, characterized in that: An emergency switch is also connected between the check valve and the combined filter.

4. The TDS value regulating mechanism for a pure water machine according to claim 3, characterized in that: After passing through the combined filter, the pipeline is connected to an inlet pressure device.

5. A TDS value regulating mechanism for a pure water machine according to claim 1 or 2, characterized in that: After being filtered by the combined filter, two outlet pipes are led out. The wastewater from the two outlet pipes, filtered by the RO membrane reverse osmosis filter, is then converged at one point by the wastewater proportioner.

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