Household graded pure water preparation device

Abstract

The utility model discloses a household graded pure water preparation device which comprises a first threaded end cover, a device main body, a valve, a block and a second threaded end cover, a central rod slot is formed in the middle of the device main body, the block is vertically arranged in the middle of the central rod slot, and the valve is arranged in the central rod slot at the top of the block; a first-stage pure water opening and a second-stage pure water opening are formed in the bottom surface in the device main body, and are formed in the two sides of the block; a first filter element and a second filter element are matched with inner cavities in the two sides of the device body respectively, annular protruding structures are arranged in the middles of the two sides of a center rod inserting groove, and center rods of the first filter element and the second filter element are inserted into the annular protruding structures on the left side and the right side of the center rod inserting groove respectively. A first threaded end cover and a second threaded end cover are matched with the two ends of the device body correspondingly. The utility model can improve the water-saving efficiency, greatly reduce the occupied space of water production equipment, freely select the matching of the filter element, and adjust the forward flushing by using the valve.

Description

[Technical field]

[0001] The utility model relates to the technical field of filtering devices, in particular to the technical field of a household graded pure water preparation device. [Background technology]

[0002] With the improvement of living standards, the requirements for various water in life have become more refined. The main water purification equipment in the current market is basically nanofiltration or RO single-model equipment, which can guarantee good drinking water in life, but has obvious shortcomings in areas with higher requirements. For example, in the preparation of ultrapure water in medicine, deep well water separation and use, if two sets of filtration equipment are used at the same time, it will take up a lot of placement space. For this reason, a pure water preparation device that can place the primary filtration and the secondary filtration in the same filtration device, which does not take up space and is stable and reliable is needed. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the problems in the prior art and propose a household graded pure water preparation device, which places the primary filtration and the secondary filtration in the same filtration device and is used through the connection of an intermediate piece: 1) diversity, which can complete a variety of filtration combinations and effectively meet the simple replacement of different water quality requirements; 2) energy saving, using two-stage filtration at the same time, effectively reducing wastewater discharge and improving water resource utilization; 3) flexibility, the water blocking ring can be selected according to the actual component size to avoid product uniformity; 4) stability, the water inlet and the water outlet are respectively located at the two ends of the device, which is convenient for flushing and backwashing of the internal pollution of the device after long-term use, thereby extending the service life.

[0004] To achieve the above-mentioned purpose, the utility model proposes a household graded pure water preparation device, including a first threaded end cap, a device body, a valve, a block and a second threaded end cap, a center rod slot is provided in the middle of the device body, a block is vertically provided in the middle of the center rod slot, and a valve is provided in the center rod slot at the top of the block; a first-level pure water inlet and a second-level pure water inlet are provided on the bottom surface of the inner part of the device body, and the first-level pure water inlet and the second-level pure water inlet are arranged on both sides of the block; the inner cavities on both sides of the device body are respectively matched with a first filter element and a second filter element, and the middle parts of both sides of the center rod slot are provided with annular protrusion structures, and the center rods of the first filter element and the second filter element are respectively inserted into the annular protrusion structures on the left and right sides of the center rod slot; the two ends of the device body are respectively matched with a first threaded end cap and a second threaded end cap, a water inlet is provided in the middle of the left side of the first threaded end cap, and a waste water inlet is provided in the middle of the right side of the second threaded end cap, water enters the middle of the left side of the first threaded end cap, pure water is discharged from the lower middle of the middle of the device body, and waste water is discharged from the middle of the right side of the second threaded end cap.

[0005] Preferably, external threads are provided on the outer circumferential surfaces on both sides of the device body, and the first threaded end cap and the second threaded end cap are respectively threadedly matched on both sides of the device body.

[0006] Preferably, the first filter element and the second filter element are respectively provided with a first water seal ring and a second water seal ring on their outer circumferential surfaces, and the first filter element and the second filter element are pressed into the left and right sides of the device body, and the outer circumferential surfaces of the first water seal ring and the second water seal ring match the inner wall surface of the device body.

[0007] Preferably, the first filter element and the second filter element are respectively provided with a first O-ring and a second O-ring on the outer circumferential surface of the center rod, the center rods of the first filter element and the second filter element are pressed into the center rod slot, and the outer circumferential surfaces of the first O-ring and the second O-ring match the inner wall surfaces of the annular protrusion structure on both sides of the center rod slot.

[0008] Preferably, the first filter element and the second filter element are one of PP cotton, activated carbon, NF membrane, RO membrane, and mixed filter element.

[0009] Beneficial effects of the utility model:

[0010] 1. Improve water-saving efficiency, and the effect is to reduce the discharge volume of wastewater through secondary treatment: the first-stage wastewater can be adjusted, and the system recovery rate can reach more than 70% after the second-stage treatment, and the wastewater discharge volume is reduced, which greatly saves water resources;

[0011] 2. Two-stage filter element in the same device can significantly reduce the space occupied by water-making equipment: The two-stage filter element is placed in the same device, which can effectively save the space occupied by water-making equipment;

[0012] 3. Multi-stage filtration, the effect is that you can freely choose the filter element: you can choose PP cotton, activated carbon, NF membrane, RO membrane and mixed filter elements and other filter elements, and you can freely choose the front and back combinations, which greatly improves the water quality requirements;

[0013] 4. The device and filter element are easier to clean. The effect is that it can be forward flushed with wastewater or backwashed with wastewater: the wastewater ratio is adjusted by the valve. When the filter element has been used for a long time, forward and backwashing is simpler and more effective, and can be done in one step.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of a household graded pure water preparation device of the utility model;

[0016] Figure 2 The utility model is a schematic diagram of the application of a household graded pure water preparation device.

[0017] In the figure: 1-first threaded end cap, 11-water inlet, 2-device body, 21-center rod slot, 22-first pure water inlet, 23-second pure water inlet, 3-valve, 4-block, 5-second threaded end cap, 51-waste water outlet, 6-first filter element, 61-first water seal ring, 62-first O-ring, 7-second filter element, 71-second water seal ring, 72-second O-ring, the left arrow is the water inlet direction, and the right arrow is the wastewater direction. [Specific implementation method]

[0018] See also Figure 1 , Figure 2 The utility model comprises a first threaded end cap 1, a device body 2, a valve 3, a block 4 and a second threaded end cap 5. A central rod slot 21 is provided in the middle of the device body 2, a block 4 is vertically provided in the middle of the central rod slot 21, and a valve 3 is provided in the central rod slot 21 at the top of the block 4; a primary pure water inlet 22 and a secondary pure water inlet 23 are provided on the bottom surface of the device body 2, and the primary pure water inlet 22 and the secondary pure water inlet 23 are provided on both sides of the block 4; the inner cavities on both sides of the device body 2 are respectively matched with a first filter element 6 and a second filter element 7 , annular protrusion structures are provided in the middle of both sides of the center rod slot 21, and the center rods of the first filter element 6 and the second filter element 7 are respectively inserted into the annular protrusion structures on the left and right sides of the center rod slot 21; the two ends of the device body 2 are respectively matched with the first threaded end cover 1 and the second threaded end cover 5, a water inlet 11 is provided in the middle of the left side of the first threaded end cover 1, and a wastewater outlet 51 is provided in the middle of the right side of the second threaded end cover 5, water enters the middle of the left side of the first threaded end cover 1, pure water is discharged from the lower middle of the device body 2, and waste water is discharged from the middle of the right side of the second threaded end cover 5.

[0019] Working process of this utility model:

[0020] The utility model is a household graded pure water preparation device in the working process, which is explained in conjunction with the accompanying drawings.

[0021] The overall structure of the pure water preparation device is as follows Figure 1 As shown, threaded end caps (1, 5) are used to improve the pressure resistance and facilitate assembly and use; the center rod slot 21 is used to separate the pure wastewater from the filter element (6, 7) to effectively prevent water leakage; a block 4 is added in the middle of the center rod slot 21 to separate the first-stage filter element (6) from the second-stage filter element (7), and at the same time isolate the primary pure water from the secondary pure water; the valve 3 with adjustable wastewater ratio controls the wastewater discharge rate of the first-stage filter element, which serves as the water inlet source of the second-stage filter element to improve the system utilization rate.

[0022] The device operates as follows Figure 2As shown, an O-ring (62) is installed on the pre-filter element (6) or the membrane element water collection center rod to prevent water leakage, a section of the center rod slot 21 is inserted, and the threaded end caps on both sides are tightened. The raw water is connected to the water inlet 11. After the water inlet valve is opened, the raw water is filtered from the pre-filter element (6), and the pure water is collected by the center rod to the primary pure water outlet. The waste water is introduced into the post-filter element (7) according to the required flow rate through the valve 3 with adjustable waste water ratio, and then the water is collected by the center rod of the post-filter element (6) to the secondary pure water outlet, and the remaining waste water is discharged through the waste water outlet 51.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A household graded pure water preparation device, characterized in that: The device comprises a first threaded end cover (1), a device body (2), a valve (3), a block (4) and a second threaded end cover (5); a central rod slot (21) is provided in the middle of the device body (2); a block (4) is vertically provided in the middle of the central rod slot (21); a valve (3) is provided in the central rod slot (21) at the top of the block (4); a primary pure water inlet (22) and a secondary pure water inlet (23) are provided on the bottom surface of the device body (2); the primary pure water inlet (22) and the secondary pure water inlet (23) are provided on both sides of the block (4); the inner cavities on both sides of the device body (2) are respectively matched with a first filter element (6) and a second filter element (7), an annular protrusion structure is provided in the middle of both sides of the center rod slot (21), and the center rods of the first filter element (6) and the second filter element (7) are respectively inserted into the annular protrusion structures on the left and right sides of the center rod slot (21); the two ends of the device body (2) are respectively matched with a first threaded end cap (1) and a second threaded end cap (5), a water inlet (11) is provided in the middle of the left side of the first threaded end cap (1), and a waste water outlet (51) is provided in the middle of the right side of the second threaded end cap (5), water enters the middle of the left side of the first threaded end cap (1), pure water is discharged from the lower middle of the device body (2), and waste water is discharged from the middle of the right side of the second threaded end cap (5).

2. A household graded pure water preparation device as claimed in claim 1, characterized in that: External threads are provided on the outer peripheral surfaces of both sides of the device body (2), and the two sides of the device body (2) are respectively threadedly matched with a first threaded end cover (1) and a second threaded end cover (5).

3. A household graded pure water preparation device as claimed in claim 1, characterized in that: The first filter element (6) and the second filter element (7) are respectively provided with a first water seal ring (61) and a second water seal ring (71) on their outer circumferential surfaces. The first filter element (6) and the second filter element (7) are press-fitted into the left and right sides of the device body (2), and the outer circumferential surfaces of the first water seal ring (61) and the second water seal ring (71) match the inner wall surface of the device body (2).

4. A household graded pure water preparation device as claimed in claim 1, characterized in that: A first O-ring (62) and a second O-ring (72) are respectively mounted on the outer circumference of the center rod of the first filter element (6) and the second filter element (7); the center rods of the first filter element (6) and the second filter element (7) are pressed into the center rod slot (21), and the outer circumferences of the first O-ring (62) and the second O-ring (72) match the inner wall surfaces of the annular protrusion structures on both sides of the center rod slot (21).

5. A household graded pure water preparation device as claimed in claim 1, characterized in that: The first filter element (6) and the second filter element (7) are one of PP cotton, activated carbon, NF membrane, RO membrane, and mixed filter element.

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