Negative pressure type hot water channel and warm and hot integrated water purifier

Abstract

The utility model discloses a negative pressure type hot water waterway and warm integrated water purifier, the negative pressure type hot water waterway comprises a water purification unit, a negative pressure valve and a diaphragm pump which are sequentially communicated through a pipeline, the negative pressure type hot water waterway also comprises a pressure stabilizer, the pressure stabilizer is arranged on a passage between the negative pressure valve and the diaphragm pump, the pressure stabilizer comprises an elastic piece, and the elastic piece is connected with the diaphragm pump. The negative pressure valve communicates with the diaphragm pump through an elastic cavity of the elastic piece, and the elastic piece has elasticity and can deform according to pressure in the elastic cavity so as to change the size of the elastic cavity. The pressure stabilizer is arranged between the negative pressure valve and the diaphragm pump, variable negative pressure can be generated on a passage between the diaphragm pump and the negative pressure valve when the diaphragm pump works, the pressure change can cause the deformation of the elastic piece, and the suction change of the diaphragm pump and the change of the elastic piece are mutually counteracted, so that the negative pressure of a water path is continuously kept; the purified water prepared by the water purification unit flows to the heating body constantly, the water outlet flow is smooth and stable, and the purpose of flow stabilization is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of negative pressure hot water waterway and warm integrated water purifier. BACKGROUND

[0002] At present, the warm integrated water purifier of direct drinking type replaces water tank using negative pressure valve mode, then rear-end is added with direct-current diaphragm small pump to extract purified water, provides heating body heating, to obtain the purpose of hot water, but the following problems exist at present: first, negative pressure valve needs small pump to provide certain suction to open, and small pump belongs to diaphragm pump, several cavities of diaphragm pump circulate work to form certain pulse, especially when flow is low, it can be obviously seen from water outlet that water flow is large or small, so that household experience is not good, and changing water flow also affects the heating effect of heating body. SUMMARY

[0003] The utility model solves the technical problem that the prior art is to overcome the defect of unstable flow of negative pressure hot water waterway, and provides a kind of negative pressure hot water waterway and warm integrated water purifier.

[0004] The utility model solves the above technical problem by the following technical scheme:

[0005] A kind of negative pressure hot water waterway, it includes purified water unit, negative pressure valve and diaphragm pump sequentially communicated by pipeline, the negative pressure hot water waterway further includes pressure stabilizer, the pressure stabilizer is installed on the passageway between the negative pressure valve and the diaphragm pump, the pressure stabilizer includes elastic member, the negative pressure valve is communicated with the diaphragm pump by the elastic cavity of the elastic member, the elastic member has elasticity, the elastic member can be deformed according to the pressure in the elastic cavity, to change the size of the elastic cavity.

[0006] In the scheme, the negative pressure hot water waterway is provided with pressure stabilizer between negative pressure valve and diaphragm pump, negative pressure is generated at the water outlet end of negative pressure valve after diaphragm pump starts, negative pressure valve opens, and the purified water prepared by purified water unit flows to downstream heating body under the drive of diaphragm pump, at the same time, variable negative pressure is generated on the passageway between diaphragm pump and negative pressure valve when diaphragm pump works, the pressure change will cause the deformation of elastic member, when suction force is generated in diaphragm pump, elastic member is contracted and deformed, when suction force disappears due to diaphragm pump switching diaphragm cavity, elastic member expands by elasticity, to make up the insufficient suction force on waterway, suction force change of diaphragm pump and the change of elastic member are mutually offset, so that waterway continuously maintains negative pressure, so that the purified water prepared by purified water unit flows to heating body constantly, water outlet flow is smooth and stable, to achieve the purpose of steady flow.

[0007] In addition, when the elastic member of the pressure stabilizer expands, it can suck part of the water in the heating body and the pipeline upstream of the heating body back to the elastic cavity, thereby solving the problem that the water temperature at the water outlet end does not meet the standard when the user first opens the hot water function.

[0008] Preferably, the pressure stabilizer further comprises a shell, which is arranged outside the elastic member, and a plurality of air holes are arranged on the shell, which communicate the inner cavity of the shell with the outside.

[0009] In this scheme, the shell is used to support and protect the elastic member, and the air holes are arranged on the shell to balance the pressure between the inside and outside of the shell, so as to facilitate the deformation of the elastic member.

[0010] Preferably, the elastic member is made of rubber material.

[0011] Preferably, the pressure stabilizer further comprises a spring, which is embedded in the wall surface of the elastic member.

[0012] In this scheme, the above structure is used to increase the elasticity of the elastic member and improve the flow stabilizing effect.

[0013] Preferably, the inner wall of the elastic member has a plurality of recesses and flanges arranged at intervals to form the elastic cavity.

[0014] In this scheme, the above structure is used to increase the elasticity of the elastic member and improve the flow stabilizing effect.

[0015] Preferably, the outer peripheral surface of the elastic member has a helical flange to form the elastic cavity.

[0016] In this scheme, the above structure is used to increase the elasticity of the elastic member and improve the flow stabilizing effect.

[0017] Preferably, the water purification unit comprises a front filter element, a water pump and a rear filter element, the front end of the front filter element is used to connect to tap water, the rear end of the front filter element is communicated to the rear filter element through the water pump, the water outlet of the rear filter element is communicated to the negative pressure valve, the waste water outlet of the rear filter element is connected with a waste water pipeline, a drain electromagnetic valve and a one-way valve are installed on the waste water pipeline, the drain electromagnetic valve has flow and on-off functions, and the inlet of the one-way valve faces the front filter element.

[0018] In the scheme, the pre-filter contains PP cotton and pre-active carbon. The PP cotton is used to remove large particles such as silt, rust and other impurities, and the pre-active carbon is used to adsorb chlorine. The post-filter contains a nanofiltration filter, a membrane chromatography filter, a post-active carbon filter and an ultrafiltration filter. The nanofiltration filter is used to remove harmful substances such as heavy metals, microorganisms and bacteria. The membrane chromatography filter is used to selectively remove heavy metals and retain minerals. The post-active carbon filter is used to adsorb odors and improve taste. The ultrafiltration filter is used to intercept bacteria. The water pump is used to increase the pressure on the water path to maintain a certain pre-membrane pressure for the post-filter to facilitate water production. During water production, the wastewater discharge electromagnetic valve on the wastewater path is used to limit the wastewater flow to maintain a certain pre-membrane pressure for the post-filter to facilitate water production. During flushing, the wastewater discharge electromagnetic valve is opened to increase the flow at the wastewater outlet to flush the post-filter. The one-way valve is used to prevent wastewater from flowing back into the post-filter to protect the post-filter.

[0019] Preferably, the negative pressure hot water path further comprises a heating body, one end of the heating body being communicated with the diaphragm pump, and the other end of the heating body being connected with the water end.

[0020] In the scheme, when the diaphragm pump is working, the purified water produced by the water purification unit is delivered to the heating body. The heating body is used to heat the purified water so that the user can obtain the required hot water at the water end.

[0021] Preferably, the negative pressure hot water path further comprises a first temperature sensor, a second temperature sensor and a controller. The first temperature sensor and the second temperature sensor are respectively installed at the two ends of the heating body. The first temperature sensor, the second temperature sensor and the heating body are all electrically connected to the controller.

[0022] In the scheme, the first temperature sensor and the second temperature sensor are respectively used to detect the inlet water temperature and the outlet water temperature of the heating body. The controller adjusts the power of the heating body according to the inlet water temperature and the outlet water temperature, so that the user can obtain hot water with the required water temperature at the water end.

[0023] A warm and hot integrated water purifier comprises the negative pressure hot water path as described above.

[0024] On the basis of common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain each preferred embodiment of the present application.

[0025] The positive progress effect of the utility model lies in: the negative pressure type hot water channel sets the pressure stabilizer between the negative pressure valve and the diaphragm pump, the negative pressure is generated at the water outlet end of the negative pressure valve after the diaphragm pump starts, the negative pressure valve opens, the purified water prepared by the water purification unit flows to the downstream heating body under the drive of the diaphragm pump, at the same time, the diaphragm pump generates changing negative pressure on the passage between the diaphragm pump and the negative pressure valve when working, the pressure change will cause the deformation of the elastic member, when the suction force is generated in the diaphragm pump, the elastic member is contracted and deformed, when the suction force disappears caused by the diaphragm pump switching the diaphragm cavity, the elastic member expands by elasticity, compensates the insufficient suction force on the water channel, the suction force change of the diaphragm pump and the change of the elastic member offset each other, the water channel continuously maintains the negative pressure, so that the purified water flow prepared by the water purification unit constantly flows to the heating body, the water outlet flow is smooth and stable, the purpose of steady flow is achieved.

[0026] In addition, when the elastic member of the pressure stabilizer expands, part of the water in the heating body and the pipeline upstream of the heating body is sucked back to the elastic cavity, so that the situation that the water temperature at the water outlet end does not reach the standard when the user first opens the hot water function is solved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic view of the negative pressure type hot water channel of a preferred embodiment of the utility model.

[0028] Figure 2 It is a structure schematic view of the pressure stabilizer of a preferred embodiment of the utility model.

[0029] Figure 3 It is a structure schematic view of the shell of a preferred embodiment of the utility model.

[0030] Figure 4 It is a structure schematic view of the elastic member of a preferred embodiment of the utility model.

[0031] Figure 5 It is Figure 4 It is the section view along A-A line.

[0032] BRIEF DESCRIPTION OF DRAWINGS

[0033] Water purification unit 1

[0034] Pre-filter element 11

[0035] Water pump 12

[0036] Post-filter element 13

[0037] Drainage electromagnetic valve 14

[0038] Check valve 15

[0039] Negative pressure valve 2

[0040] Diaphragm pump 3

[0041] voltage stabilizer 4

[0042] elastic member 41

[0043] elastic cavity 411

[0044] groove 412

[0045] flange 413

[0046] housing 42

[0047] vent hole 421

[0048] heating body 5

[0049] first temperature sensor 6

[0050] second temperature sensor 7

[0051] waste water pipeline 10 DETAILED DESCRIPTION

[0052] The utility model will be more clearly and completely explained by the way of examples and in connection with the drawings, but the utility model will not be limited in the scope of the examples by this.

[0053] As Figures 1-5 shown, the embodiment discloses a negative pressure type hot water pipeline, which comprises a water purification unit 1, a negative pressure valve 2 and a diaphragm pump 3 which are sequentially communicated through pipelines, and further comprises a voltage stabilizer 4 which is installed on a passage between the negative pressure valve 2 and the diaphragm pump 3, wherein the voltage stabilizer 4 comprises an elastic member 41, the negative pressure valve 2 is communicated with the diaphragm pump 3 through an elastic cavity 411 of the elastic member 41, the elastic member 41 has elasticity, and the elastic member 41 can be deformed according to the pressure in the elastic cavity 411 to change the size of the elastic cavity 411. The inlet of the elastic member 41 is connected to the negative pressure valve 2, and the outlet of the elastic member 41 is connected to the diaphragm pump 3.

[0054] In the embodiment, the negative pressure hot water channel is provided with a pressure stabilizer 4 between the negative pressure valve 2 and the diaphragm pump 3. After the diaphragm pump 3 is started, negative pressure is generated at the water outlet end of the negative pressure valve 2, the negative pressure valve 2 is opened, and the purified water prepared by the water purification unit 1 flows to the downstream heating body 5 under the driving of the diaphragm pump 3. At the same time, the diaphragm pump 3 generates varying negative pressure in the passage between the diaphragm pump 3 and the negative pressure valve 2 when working (due to the circulation work of the diaphragm pump between several cavities), and the pressure variation causes the deformation of the elastic member 41. When the diaphragm pump 3 generates suction, the elastic member 41 is deformed by contraction, and when the diaphragm pump 3 switches the diaphragm cavity to cause the suction to disappear, the elastic member 41 expands by elasticity to compensate for the insufficient suction in the water channel. The suction variation of the diaphragm pump 3 and the variation of the elastic member 41 offset each other, so that the water channel continuously maintains negative pressure, the purified water prepared by the water purification unit 1 flows to the heating body 5 at a constant flow rate, the water outlet flow is smooth and stable, and the purpose of stable flow is achieved.

[0055] In the existing hot water dispenser, when the user uses the hot water function after a period of non-use, there will be a section of cold water in the pipeline at the rear end of the heating body. When the user uses the hot water function again, the cold water will flow into the cup, so that the water in the cup cannot reach the temperature desired by the user. Based on this situation, the heating power of the heating body can be increased at low temperature to ensure that the temperature of the water in the cup is the set temperature. However, at high temperature, due to the limitation of the heating power of the heating body, the set temperature cannot be reached. Therefore, in the embodiment, when the elastic member 41 of the pressure stabilizer 4 expands, a part of the water in the heating body 5 and the pipeline upstream of the heating body 5 is sucked back to the elastic cavity 411, thereby solving the problem that the water temperature at the water outlet end does not meet the standard when the user first opens the hot water function.

[0056] As shown in Figure 2 and Figure 3 , the pressure stabilizer 4 further comprises an outer shell 42 covering the outside of the elastic member 41. The outer shell 42 is provided with a plurality of air holes 421 communicating the inner cavity of the outer shell 42 with the outside. The outer shell 42 is used to support and protect the elastic member 41, and the air holes 421 are provided on the outer shell 42 to balance the pressure between the inner cavity of the outer shell 42 and the outside, facilitating the deformation of the elastic member 41.

[0057] Preferably, the elastic member 41 is made of rubber material, which is convenient for material selection and processing.

[0058] Of course, in other embodiments, the elastic member 41 can also be made of elastic diaphragm or spring and sealing member matched therewith.

[0059] In an embodiment, in order to increase the elasticity of the elastic member 41 and improve the stable flow effect, the pressure stabilizer 4 further comprises a spring embedded in the wall surface of the elastic member 41.

[0060] AsFigure 4 and Figure 5 As shown, in this embodiment, in order to increase the elasticity of the elastic member 41 and improve the flow stabilization effect, the inner wall of the elastic member 41 has a number of spaced grooves 412 and flanges 413 to form an elastic cavity 411.

[0061] In another embodiment, the outer peripheral surface of the elastic element has a spiral flange to form an elastic cavity 411, which is used to increase the elasticity of the elastic element 41 and improve the flow stabilization effect.

[0062] like Figure 1 As shown, in this embodiment, the water purification unit 1 includes a pre-filter 11, a water pump 12, and a post-filter 13. The front end of the pre-filter 11 is connected to tap water, and the rear end of the pre-filter 11 is connected to the post-filter 13 via the water pump 12. The clean water outlet of the post-filter 13 is connected to a negative pressure valve 2, and the wastewater outlet of the post-filter 13 is connected to a wastewater pipeline 10. A drain solenoid valve 14 and a one-way valve 15 are installed on the wastewater pipeline 10. The drain solenoid valve 14 has flow limiting and on / off functions, and the inlet of the one-way valve 15 faces the pre-filter 11. The pre-filter 11 contains PP cotton and pre-activated carbon. The PP cotton is used to remove large particles of impurities such as silt and rust, and the pre-activated carbon is used to adsorb chlorine. The post-filter 13 includes a nanofiltration filter, a membrane chromatography filter, a post-activated carbon filter, and an ultrafiltration filter. The nanofiltration filter removes heavy metals, microorganisms, bacteria, and other harmful substances; the membrane chromatography filter selectively removes heavy metals while retaining minerals; the post-activated carbon filter adsorbs odors and improves taste; and the ultrafiltration filter intercepts bacteria. The water pump 12 pressurizes the water supply to maintain a certain pre-membrane pressure for the post-filter 13, facilitating water production. During water production, the drain solenoid valve 14 on the wastewater pipe 10 limits the wastewater flow, maintaining a certain pre-membrane pressure for the post-filter 13. During flushing, the drain solenoid valve 14 is opened to increase the wastewater flow, flushing the post-filter 13. The check valve 15 prevents wastewater from flowing back into the post-filter 13 from the wastewater outlet, protecting the post-filter 13.

[0063] like Figure 1 As shown, the negative pressure hot water circuit also includes a heating element 5. One end of the heating element 5 is connected to the diaphragm pump 3, and the other end is connected to the water outlet. When the diaphragm pump 3 is working, it delivers the purified water produced by the water purification unit 1 to the heating element 5. The heating element 5 heats the purified water, allowing the user to obtain the required hot water at the water outlet. Preferably, the heating element 5 is a fast-heating type to achieve rapid heating.

[0064] like Figure 1As shown, the negative pressure hot water circuit further comprises a first temperature sensor 6, a second temperature sensor 7 and a controller (not shown in the figure), the first temperature sensor 6 and the second temperature sensor 7 are respectively installed at two ends of the heating body 5, and the first temperature sensor 6, the second temperature sensor 7 and the heating body 5 are all electrically connected to the controller. The first temperature sensor 6 and the second temperature sensor 7 are respectively used for detecting the inlet water temperature and the outlet water temperature of the heating body 5, and the controller adjusts the power of the heating body 5 according to the inlet water temperature and the outlet water temperature, so that the user obtains hot water with the required water temperature at the water use end.

[0065] As shown in the figure, Figure 1 The first end of the negative pressure hot water circuit is connected to the tap water, and the tail end is connected to the water use end, and the water flow direction in the water circuit is shown by the arrow in the figure. Figure 1

[0066] The embodiment also discloses a warm and hot integrated water purifier, which comprises the negative pressure hot water circuit.

[0067] In the description herein, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0068] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, and these changes and modifications all fall within the protection scope of the utility model.​

Claims

1. A negative pressure type hot water line comprising a water purifying unit, a negative pressure valve and a diaphragm pump which are sequentially connected by a pipe, characterized in that, The negative pressure type hot water pipeline further comprises a pressure stabilizer installed on a passage between the negative pressure valve and the diaphragm pump, the pressure stabilizer comprising an elastic member, the negative pressure valve being communicated with the diaphragm pump through an elastic cavity of the elastic member, the elastic member having elasticity, and the elastic member being capable of deforming according to pressure in the elastic cavity to change the size of the elastic cavity.

2. The negative pressure type hot water passage according to claim 1, wherein The pressure stabilizer further comprises a shell covering the outside of the elastic member, the shell being provided with a plurality of air holes communicating the inner cavity of the shell with the outside.

3. The negative pressure type hot water passage according to claim 1, wherein The elastic member is made of rubber material.

4. The negative pressure type hot water passage according to claim 3, wherein The pressure stabilizer further comprises a spring embedded in the wall surface of the elastic member.

5. The negative pressure type hot water passage according to claim 1, wherein The inner wall of the elastic member is provided with a plurality of spaced grooves and flanges to form the elastic cavity.

6. The negative pressure type hot water passage according to claim 1, wherein The elastic member is provided with a helical flange on the outer circumferential surface to form the elastic cavity.

7. The negative pressure type hot water passage according to claim 1, wherein The water purification unit comprises a front filter element, a water pump and a rear filter element, the front end of the front filter element being used for connecting tap water, the rear end of the front filter element being communicated with the rear filter element through the water pump, the water outlet of the rear filter element being communicated with the negative pressure valve, the wastewater outlet of the rear filter element being connected with a wastewater pipeline, the wastewater pipeline being installed with a drain electromagnetic valve and a one-way valve, the drain electromagnetic valve having flow limiting and on-off functions, and the inlet of the one-way valve facing the front filter element.

8. The negative pressure type hot water passage according to claim 7, wherein The negative pressure type hot water pipeline further comprises a heating body, one end of the heating body being communicated with the diaphragm pump, and the other end of the heating body being connected with a water end.

9. The negative pressure type hot water passage according to claim 8, wherein The negative pressure type hot water pipeline further comprises a first temperature sensor, a second temperature sensor and a controller, the first temperature sensor and the second temperature sensor being installed at the two ends of the heating body respectively, and the first temperature sensor, the second temperature sensor and the heating body being electrically connected with the controller.

10. A hot integrated water purifier, characterized in that, The warm and hot integrated water purifier comprises the negative pressure type hot water pipeline according to any one of claims 1-9.

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