Liquid purification apparatus

Abstract

The invention relates to a device for purifying liquid, preferably drinking water, which is used as a stand-alone operating device for households, outdoors, villages and service sectors. In particular, the invention belongs to the field of pressure off-line units. The invention can be used in water purification and other liquid for household, medicine and other industrial sectors. The liquid purifying device claimed operates under gas pressure and comprises a raw liquid container with a neck, a lid, a filter cartridge, a purified liquid container, an output purified liquid device, a gas injection block connected to the raw liquid container and comprising a gas injection device, a control panel and a power source, wherein the liquid purifying device is capable of opening the lid in at least two stages and in the first stage is capable of reducing the pressure to atmospheric pressure.

Description

[0001] This application is a divisional application of the invention patent application filed on December 5, 2017, with application number 201780088489.4 and invention title "Liquid Purification Equipment". Technical Field

[0002] This invention pertains to liquid (primarily water) purification devices, intended for use as offline units in homes, outdoors, villages, and service sectors. Specifically, the invention falls within the field of pressure-based offline units.

[0003] This invention can be used in water purification and other household liquids, pharmaceuticals and other industrial sectors. Background Technology

[0004] According to the international application WO2017013029 (IPC C02F 1 / 00, B65D 51 / 28, published January 26, 2017, applicant: Brita GmbH), liquid purification equipment is known from the prior art. The equipment in the international application WO2017013029 includes a raw liquid container with a removable cap, a filter cartridge, and a purified liquid container with a purified liquid outlet device. The raw liquid container consists of an upper part and a lower part. The upper part is separated from the lower part by a neck, which is formed along the periphery of the outer wall of the raw liquid container. A sealing ring is formed along the neck. Protrusions are formed on the side and rear walls of the upper part of the raw liquid container. The mouth of the raw liquid container has an edge whose length is longer than the length of the mouth. The edge of the raw liquid container has a protruding internal portion. The protrusion is formed in the protruding portion of the edge. The protrusion completely closes the purified liquid outlet device of the purified liquid container.

[0005] At least part of the opening of the original liquid container is angled to the horizontal plane. The original liquid container is inserted into the purified liquid container. Two protrusions are symmetrically formed on the inner front wall of the purified liquid container. One protrusion is formed on the inner rear wall of the purified liquid container.

[0006] The lid's shape perfectly replicates the shape of the original liquid container's neck. A sealing ring is formed along the periphery of the lower edge of the sidewall. The sealing ring is made of a soft, elastic material and flattens when the original liquid container is covered by the lid, thus providing an airtight connection between the lid and the original liquid container's neck. The sealing ring is made of elastic material and conforms to the slit. There is an ear on the outer surface of the lid for opening it. A slit exists inside the rear part of the original liquid container's edge. When the original liquid container is closed with the lid, the slit formed at the bottom of the lid and the slit formed on the rear wall inside the original liquid container's edge align to form a channel for airflow.

[0007] The device according to International Patent Application WO2017013029 operates as follows: A raw liquid container is inserted into a purified liquid container. The raw liquid container is in its initial stage. Raw liquid is poured into the raw liquid container through the spout. The raw liquid container is closed with a cap. A sealing ring formed along the periphery of the lower edge of the sidewall provides airtightness to the raw liquid container. Liquid flows into the purified liquid container and is gradually replaced by air, which enters the raw liquid container through channels formed by two slits made in the cap and spout. When the filtration process is complete, the customer presses the protruding portion of the spout of the raw liquid container. When the protruding portion of the spout is pressed, the raw liquid container enters a second stage due to protrusions formed on the inner wall of the purified liquid container, the bottleneck separating the upper and lower parts of the raw liquid container, and protrusions formed on the rear wall of the raw liquid container. This means that a portion of the container with the horizontal portion of the spout rises, opening the purified liquid outlet of the purified liquid container, and a portion of the raw liquid container with the sloping portion of the spout descends. Protrusions formed on the rear wall of the raw liquid container keep the raw liquid container in the second stage. Air is allowed to flow out of the filter cartridge through a channel formed by a crack in the cap and a crack in the bottle neck.

[0008] The device according to the international application for patent WO2017013029 has several drawbacks. For example, the device cannot return to its initial stage independently, such as under the influence of gravity of the original liquid container. The consumer must return the original liquid container to its initial stage. Furthermore, as previously mentioned, the seal made around the perimeter of the original liquid container's upper edge is made of a flexible and soft material and provides an airtight connection, but for this reason, it may be difficult to open the lid, and a kind of adhesion may occur.

[0009] According to patent application US 2007 / 0221561 (IPC B01D 27 / 00, published September 27, 2007, applicant: 3M Innovative Properties Company), a liquid purification device is known from the prior art. This device includes a purified liquid container, a filter cartridge, a purified liquid outlet device, and a cap. The filter cartridge is placed in the purified liquid container. The device is made of a flexible hose connected to a raw water source, such as a faucet, from which the raw liquid flows under pressure. The filter cartridge includes a bowl with a raw water inlet. A sleeve containing activated carbon is inserted into the bowl. A raw water hole is located on the lower wall of the sleeve. A constraint wall with two eyebrow-like elements on opposite sides is formed on the upper wall of the bowl. A channel for the purified liquid is formed inside the activated carbon. A head is located on the upper wall of the sleeve. A nozzle for the purified liquid outlet is located in the head. The nozzle is connected to the purified liquid channel. Furthermore, two eyebrow-like elements are located on opposite sides of the outer wall of the sleeve. The eyebrow-shaped fittings are retracted to quickly and securely fasten the sleeve containing activated carbon into the bowl of the filter cartridge. The lid of the liquid purification device completely closes the purified liquid container. The lid has a hatch. On the inner wall of the hatch are two eyebrow-shaped fittings, spaced apart from each other. These eyebrow-shaped fittings are necessary to determine whether the sleeve containing activated carbon is properly inserted into the bowl of the filter cartridge.

[0010] According to patent application US 2007 / 0221561, the liquid purification device functions as follows: A hatch formed in the lid is opened. A sleeve containing activated carbon is placed in the filter bowl. The sleeve is then rotated so that eyebrow-shaped elements formed on the opposite side of the sleeve are covered by eyebrow-shaped elements of the limiting wall of the filter bowl. The hatch of the lid is then closed. If the filter bowl is placed correctly, the nozzle suspended on the sleeve will be positioned between the eyebrow-shaped elements and will be fixed, and the hatch will be completely closed to provide an airtight connection. The nozzle is then connected to the pressurized source of the original liquid. The original liquid flows through the nozzle into the inlet hole and then into the filter bowl. The liquid collides with the sleeve, changes its direction, and flows into the activated carbon through holes formed in the lower wall of the sleeve. The purified liquid flows upward along channels formed in the activated carbon and enters the purified liquid container through the nozzle. After the purified liquid container is filled with purified liquid, the liquid purification device can be shut off from the source of the original liquid.

[0011] The device according to application US 2007 / 0221561 has the following disadvantages. As can be understood from the description, the lid is part of the purified liquid container. The hatch is the only connection to the environment and the only entrance to the internal space of the purified liquid container. This structure reduces usability, for example, making it difficult to clean the internal space of the purified liquid container. This will lead to the formation of a film and bacterial growth in the already purified water. Furthermore, the original liquid comes from an external source and operates under pressure. If the pressure decreases, the filtration rate also decreases. This liquid purification method using the liquid purification device according to patent application US2007 / 0221561 narrows the designated area of ​​the specified device. It can only be used in places where the original liquid source operates under pressure—urban and rural houses with pipes.

[0012] According to Russian Federation Patent No. 2445999 (RU 2445999) (IPC B01D 27 / 02, B01D 35 / 26, published March 27, 2012, applicant: ZAO «Aquaphor Production»), liquid purification equipment is known from the prior art. The equipment according to patent RU2445999 includes a raw liquid container with a spout, a lid, a filter cartridge, a purified liquid container, a purified liquid outlet device, and a gas injection block connected to the raw liquid container and containing a gas injection device, a control panel, and a power supply. The lid is a removable part that covers the spout of the raw liquid container by screws, bayonet connections, or latches. A liquid level sensor is present in the purified liquid container. The gas injection block also has a liquid level sensor and at least one feedback coupling device. The outlet of the gas injection device, acting as a pneumatic booster, is connected to the inlet of the control panel, and its outlet is connected to the power supply inlet. The liquid level sensor and at least one feedback coupling device are connected to the control panel. The control panel sets the sequence and timing mode of the pneumatic booster during filtration. The sequence and timing mode of the pneumatic booster during filtration are set via, for example, a programmable controller located in the control panel. Positive air pressure at the original water level is stabilized using a feedback algorithm, a feedback coupling device, and other sensors or devices that convert the positive pressure value into a signal for the control panel.

[0013] The liquid purification device described in patent RU2445999 functions as follows: Raw liquid is poured into a raw liquid container through the bottle opening. The container is then closed with a cap. The device is then turned on. A pneumatic booster begins pumping air into the raw liquid container. Under positive pressure, the liquid begins to flow through the filter cartridge into the purified liquid container. When a specific positive pressure value is reached, a feedback coupling device sends a signal to the control panel and shuts off the pneumatic booster. As the liquid flows through the filter cartridge, the pressure in the raw liquid container decreases. When the positive pressure reaches its minimum value, the feedback coupling device sends a signal to the control panel, which activates the pneumatic booster to increase the positive pressure to a specific value. This cyclical operation is repeated until all the raw liquid has been filtered. A sensor placed in the raw liquid container sends a signal to the control panel. Afterward, the liquid purification device is shut off.

[0014] The main drawback of the liquid purification device in patent RU2445999 is that the structure of the cap and bottle opening does not allow for emergency and safe opening in the event of a control panel malfunction during the operation of the liquid purification device or after the filtration cycle has ended. In other words, in the event of a sudden, immediate, and complete failure of the seal on the original liquid container, the cap can be ejected, potentially causing injury to the user. Summary of the Invention

[0015] The purpose of this invention and the technical results achieved by using this invention are to develop new liquid purification devices that improve safety and ease of use.

[0016] The problem to be solved and the claimed technical result achieved by using this invention are accomplished by a liquid purification device that operates under gas pressure and includes a raw liquid container with a bottle neck, a cap, a filter cartridge, a purified liquid container, a purified liquid output device, a gas injection block connected to the raw liquid container and including a gas injection device, a control panel, and a power supply. The liquid purification device is capable of opening the cap in at least two steps, and in the first step, it is capable of releasing pressure down to atmospheric pressure. The cap includes a base and an upper portion, housed within a main frame. The liquid purification device includes a closing member, which can be formed when connecting the bottle neck and the cap. The bottle neck of the raw liquid container has threads, with at least one flange on each thread turn, the length of which is at least a portion of the thread turn length. The upper portion of the cap can be made into a flip-top, which is formed by a clamping device. The closing member can be formed by at least one flange formed in the base of the cap and at least one protrusion formed in the flip-top clamping device. The clamping device can be formed by a latch formed on the lower surface of the flip-top and in a groove in the base of the cap. A spring valve is formed in the flip-top and connected to the raw liquid container. The lid may be equipped with a lid lifting speed limiting device, serving as a micro-lifting device and forming a connector to connect the upper part of the lid to its base. The upper part of the lid has a disc equipped with a sealing element. The liquid purification equipment is equipped with a gas injection switch that acts as a liquid level sensor in contact with the control panel. Attached Figure Description

[0017] Figure 1 A liquid purification device is described.

[0018] Figure 2 The mouth and cap of the original liquid container are depicted.

[0019] Figure 3 The cover is depicted with a rotating disc at the top.

[0020] Figure 4 A lid with a closing member is depicted, which is formed by a flap and a base. Note: The flap edge portion of the lid can be understood through the term "flap".

[0021] Figure 5 The closed element is depicted by the flange of the flip-top clamping device and the protrusion of the cover base.

[0022] Figure 6 A lift velocity limiting device is described.

[0023] Figure 7 The diagram depicts a closed component formed by a spring valve, a flip latch, and a groove in the base of the lid. Detailed Implementation

[0024] Liquid purification equipment 1 includes a raw liquid container 2, a lid 3, a purified liquid container 4, a filter cartridge 5, a purified liquid output device 7, and a connector to the raw liquid container 2. Figure 1 The gas injection block (not shown in the figure).

[0025] Device 1 can also be equipped with a handle 6 ( Figure 1 The cavities symmetrically arranged on the side wall of the purified liquid container 4 can also be used as handles (not shown in the figure).

[0026] The container 2 for the raw liquid is equipped with a bottle neck 8. The bottle neck has threads ( Figure 1 and 2 Each of the at least three threaded rings 9 has at least one flange 10. The length of the flange 10 is at least a portion of the length of the threaded ring 9. Figure 2 The container 2 for the raw liquid is connected to the lid 3 via channel 39. Figure 1 , 3 , 4, 7).

[0027] The cover 3 is made into a detachable part and consists of a frame 14, a base 11, and an upper part 12. Figure 2 and 3 ). Thread 13 is formed along the periphery of the side wall of the upper part 12 of the cover 3. The inner upper wall 15 of the upper part 12 can be formed, for example, a disc. A sealing element 16 is provided on the inner wall 15, which is formed, for example, in the form of a gasket. A portion of the frame of the cover 3 can be formed as a flip cover 14' ( Figure 4 ).

[0028] The liquid purification device 1 is equipped with a closing element. The closing element shown is necessary to facilitate decompression of the liquid purification device in the first step of opening the lid.

[0029] When the cap 3 and the bottle mouth 8 of the original liquid container 2 are connected together, a closed component can be formed. Figure 2 As mentioned earlier, there is a flange 10 on the threaded ring 9 at the bottle neck 8. Figure 2 ), there is a thread 13 on the inner wall of the cover 3 ( Figure 3 Due to this structure of the upper part 12 of the cover 3, the disc is able to rotate. It is necessary that the gasket 16 does not move and is subjected to friction when the cover 3 is opened and closed.

[0030] When the frame 14 of the cover 3 is made in the form of a flip cover 14', the cover 3 can be equipped with a lifting speed limiting device 20. The device 20 shown can be formed at the location where the flip cover 14' connects to the base 11 of the cover 3. There is a horizontal support column in the base 11 of the cover 3. The support column is placed in a housing 22, the length of which is slightly less than the length of the support column 21. The housing 22 surrounds the central portion of the support column 21, leaving flanges on both sides. The flip cover 14' is disposed on these flanges. Therefore, a joint is formed between the flip cover 14' and the base 11 of the cover 3. Due to the spring 23 disposed in the support column 21 (… Figure 5 The lifting speed limiting device 20 of the cover 3 is used as a micro-lifting device.

[0031] The closure element may also be formed by at least one flange 17 formed in the base 11 of the cover 3 and at least one protrusion 18 formed in the clamping device 19 of the flap 14'. Figure 5 -C).

[0032] The closing member can also be formed by a latch 32, which is formed on the lower part of the flap 14' and on the groove 33 formed on the base 11 of the cover 3. Figure 7 A spring valve is also present on the flip cover 14'. The spring valve is housed in the housing 34 and has a support 35, a sealing ring 36 disposed on the support 35, and a spring 37. A button 38 is present on the flip cover 14'. The valve housing 35 is configured such that the valve's internal space is connected to the passage 39 and to the original liquid container 2.

[0033] The gas injection block includes a gas injection device 24, a control panel 25, and a power supply 26. Figure 1 and 3 The gas injection block can be placed in the base 11 of the cover 3, or partially in the base 11 of the cover 3 and partially in the flip cover 14'. For example, the gas injection device 24 can be placed in the housing 22 of the cover 3 lifting speed limiting device 20, and the control panel 25 can be placed under the frame 14 of the flip cover 14'. Figure 4 All other components are placed in the base 11 of the cover 3. Figure 1 , 3 4). The gas injection device 24 can be made into a pneumatic booster 24, such as a micro compressor, connected to the original liquid container via a connector element. The gas injection device 24 is connected to a gas supply device, such as ambient air.

[0034] The gas injection device 24 can also be made into a manually controlled pump, such as a pump or piston pump (not shown in the figure).

[0035] The control panel 25 can be made into a microcontroller, including volatile memory, a real-time counter, and an evaluator. The control panel 25 can be placed below the frame 14, on the base 11 of the cover 3. Figure 1 , 2 (or the handle 6 of the liquid purification device (not shown in the figure)).

[0036] If the gas injection device 24 is made into a manually controlled pump, the control panel 25 can be made into a piston or button to pump air into the original liquid container 2.

[0037] The power supply 26 can be placed on, for example, the base 11 of the liquid purification device 1. Figure 1 and 3 The power source 26 can be, for example, a battery power source or a rechargeable battery. (The power source 26 can be either a battery power source or a rechargeable battery.)

[0038] The connections between the components of the gas injection block are as follows: Power supply 26 is connected to the input terminal of control panel 25, the output terminal of control panel 25 is connected to gas injection device 24, and the output of gas injection device 24 is connected to the original liquid container 2.

[0039] Filter cartridge 5 consists of main body 28 ( Figure 1 The system comprises at least one filter element (not shown in the figure). The filter element can be a thick adsorbent mixture based on a highly efficient finely dispersed adsorbent, such as powdered activated carbon, ion exchange resins of different dispersions, ion exchange fibers, or activated carbon fibers. Furthermore, the filter element may include a porous microfilter or mesh with a pore size of 0.4 to 20 mkm to protect the water from particles with a diameter of 0.4 to 20 mkm (e.g., bacteria such as Escherichia coli, Shigella dysenteriae, and Lambres cysts).

[0040] Alternatively, two additional filter elements can be placed within the main body 28 of filter element 5. One of these elements can be placed within the filter element along with the adsorption mixture and can be, for example, a hollow fiber module or activated carbon. A third filter element can be placed below the second filter element to avoid contamination of the hollow fiber module. The third filter element can be filled with, for example, activated carbon.

[0041] In this case, the filter element 5 may have a tube 27 for purified water output. After liquid filtration is completed, the tube 27 is placed on top of the filter cartridge 5, above the purified liquid surface in the purified liquid container 4. Figure 1 ).

[0042] Tube 27 can be molded into part of the main body 28 of filter cartridge 5. Figure 1 ).

[0043] The liquid purification device 1 for which protection is sought is also equipped with a switch button (not shown in the figure), which can be placed in the base 11 or in the frame 14 of the cover 3, or in the handle 6.

[0044] The claimed liquid purification equipment 1 is equipped with a gas injection block cutoff device. The cutoff device can be configured as a level sensor 29, in contact with a control panel 25, where a non-movable sensor 30 is housed. The level sensor 29 can be a float sensor. The non-movable sensor 30 can be, for example, a Hall effect sensor or a reed switch.

[0045] The functions of liquid purification equipment 1 are as follows.

[0046] Open cap 3. Pour the raw liquid through bottle neck 8 into raw liquid container 2. Then close cap 3. Turn device 1 on and off using the switch button (not shown). The gas injection block begins to inject gas into raw liquid container 2: this is done automatically if the gas injection device 24 is a pneumatic booster, and manually if it is a manually operated pump or piston. Under positive gas pressure, liquid begins to flow into filter cartridge 5. The purified liquid is collected in purified liquid container 4. When the gas injection device 24 is a pneumatic booster, the contact between float sensor 29 and non-movable sensor 30 closes when the liquid level in raw liquid container 2 drops to its minimum value, and the control panel 25 shuts off the pneumatic booster 24.

[0047] The pressure in the liquid purification device 1 drops to atmospheric pressure. The lid 3 can be easily removed from the original liquid container. However, there are situations where the user must remove the lid 3 while the device 1 is under pressure, for example, during the filtration process or when the control panel 25 cannot shut off the gas injection block. Opening the lid 3 while the device 1 is under pressure can be dangerous, as the lid 3 may be thrown off and potentially injure the user. Compared to the closest similar solution, the claimed protection device allows the user to safely remove the lid 3, even when the device 1 is under pressure.

[0048] The opening of the cap 3 is accomplished in two steps. In the first step, pressure is reduced on the device 1. This is possible due to the presence of a closing member or a lifting speed limiting device 20 for the cap 3. The cap 3 is rotated when the closing member is formed by the flange 10 on the threaded ring 9 of the bottle neck 8 and the thread 13 formed in the cap 3. First, the rotating surface of the cap 3 slides along the surface of the threaded ring 9 of the bottle neck of the cap 3, gradually opening the original liquid container 2. The pressure decreases, but the threaded ring 9 of the cap 3 engages with the protrusion 10 formed at the threaded ring on the bottle neck 8, so the cap 3 remains on the bottle neck 8, and the user can easily and safely open the cap 3 in the second stage. The same process occurs if the closing member is formed by the flange 17 on the inner wall of the base 8 of the cap 3 and the protrusion 18 on the clamping member 19 of the flip cap 14'. When a button (not shown) is present in the outer wall of the flip cap 14', the flange 18 of the clamping device 19 is removed from the clamping of the protrusion 18 of the base 8. The lifting speed limiting device 20 of the cap 3 acts as a micro-lifting device. When the user presses the button (not shown in the figure), the lifting speed limiting device 20 of the cover 3 gradually opens the flip cover 14', so the pressure gradually decreases over a certain period of time.

[0049] When the spring valve is in the flip cover 14', the user presses button 38 and latch 32 moves out of recess 33. The side wall of button 38 begins to press against support 36, compressing spring 37. Sealing ring 36 leaves frame, opening the outlet hole. Thus, depressurization of the liquid purification device occurs in the first stage. After this, the user can easily, safely, and completely open the cover – the second stage of cover opening.

[0050] As can be seen from the description, the user safely opened and depressurized the lid 3. The lid 3 is easy to use. In addition to the lid 3, the gas injection device containing the microcontroller and micropump can also be removed. Therefore, the original liquid purification container 2 can be cleaned without damaging the control panel 25 and the pneumatic booster 26.

[0051] Preferred embodiments are given in the description of the invention. Modifications to the invention are possible within the scope of these claims. This provides for its general applicability.

Claims

1. A liquid purification device (1), operating under gas pressure, comprising a raw liquid container (2) with a bottle neck (8), a cap (3), a filter cartridge (5), a purified liquid container (4), a purified liquid output device (7), and a gas injection block connected to the raw liquid container (2) and comprising a gas injection device (24), a control panel (25), and a power supply (26), characterized in that, The lid (3) of the liquid purification device (1) is configured as an openable lid having at least two opening stages, and the liquid purification device (1) further includes a closing member formed in one of the following two ways: It is formed by the interconnection of the bottle mouth (8) and the cap (3), wherein, The cover (3) has threads (13), and The bottle opening (8) has a thread with a threaded ring (9), and Each threaded ring (9) has at least one flange (10), the length of which is at least a portion of the length of the corresponding threaded ring (9); or It is formed by at least one flange 17 made in the base (11) of the cover (3) and at least one protrusion (18) made in the clamping device (19) of the flip cover (14'), wherein the flip cover (14') is formed by the upper part (12) of the cover (13).

2. The liquid purification device (1) according to claim 1, characterized in that, The base (11) and the upper part (12) of the cover (3) are placed in the main frame (14).

3. The liquid purification device (1) according to claim 1, characterized in that, The clamping device (19) is formed by a latch (32) disposed on the lower surface of the flip cover (14') and a groove (33) disposed in the base (11) of the cover (3).

4. The liquid purification device (1) according to claim 1, characterized in that, A spring valve is provided in the flip cover (14'), and the spring valve is connected to the original liquid container (2).

5. The liquid purification device (1) according to claim 2, characterized in that, The cover (3) is equipped with a lifting speed limiting device (20), which serves as a micro-lifting device and as a connector connecting the upper part (12) of the cover (3) to the base (11) of the cover (3).

6. The liquid purification device (1) according to claim 2, characterized in that, A disc is provided in the upper part (12) of the cover (3), and the disc is equipped with a sealing element (16).

7. The liquid purification device (1) according to claim 1, characterized in that, The liquid purification device (1) is equipped with a gas injection device switch, which is made into a liquid level sensor (29) that contacts the control panel (25).

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