CN106419585A - Direct water dispenser and pressure relief method for hot tank of direct water dispenser - Google Patents
Direct water dispenser and pressure relief method for hot tank of direct water dispenser Download PDFInfo
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- CN106419585A CN106419585A CN201610936191.1A CN201610936191A CN106419585A CN 106419585 A CN106419585 A CN 106419585A CN 201610936191 A CN201610936191 A CN 201610936191A CN 106419585 A CN106419585 A CN 106419585A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 196
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000035622 drinking Effects 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 33
- 238000004321 preservation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 230000009172 bursting Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004901 spalling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/58—Safety devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Devices For Dispensing Beverages (AREA)
Abstract
The invention relates to a direct drinking machine and a pressure relief method of a hot tank of the direct drinking machine, relating to the technical field of drinking machines. The main technical scheme adopted is as follows: a direct drinking machine comprises a hot tank, a water inlet pipeline, a water outlet pipeline, a pressure relief pipeline and a control system. Wherein the water inlet pipeline is communicated with the hot tank, and the water inlet pipeline is provided with a water inlet valve; the water outlet pipeline is communicated with the hot tank; one end of the pressure relief pipeline is communicated with the hot tank, and the other end of the pressure relief pipeline is communicated with the atmosphere; a first pressure relief valve is arranged on the pressure relief pipeline; the control system is connected with the first pressure relief valve and used for controlling the first pressure relief valve to be opened or closed according to the heating state of the hot tank and the water temperature in the hot tank, so that the hot tank does not bear pressure or the pressure in the hot tank is maintained at a low pressure level. A pressure relief method for a hot tank of a direct water dispenser is used for relieving pressure of the hot tank in the direct water dispenser. The invention is mainly used for enabling the hot tank of the direct water dispenser to be always in a low-pressure environment so as to prolong the service life of the hot tank and the direct water dispenser.
Description
Technical Field
The invention relates to the technical field of water dispensers, in particular to a direct water dispenser and a pressure relief method for a hot tank of the direct water dispenser.
Background
The large-flow direct water dispenser adopts the large-volume hot tank as water storage equipment, and the hot water amount which can be discharged at one time is large, so that the large-flow direct water dispenser is popular in places such as schools, stations and the like with large crowd density. However, the hot tank assembly of the direct drinking machine needs to bear high pressure generated by the expansion of the liquid inside the hot tank assembly due to heating, so that great potential safety hazards exist (such as shortening the service life of the hot tank assembly, bursting of the hot tank, bursting of a waterway and the like).
In order to eliminate the above mentioned safety hazards, the prior art improves the straight drinking machine. One of the improvements is to reduce the maximum pressure experienced by the hot tank by providing a drain (a capillary tube in communication with the outlet tube) in communication with the electric boiler. Specifically, when the liquid in the electric boiler expands to a certain pressure, the pressure may force the excess liquid out of the capillary tube. Another improvement technique is to reduce the pressure in the hot tank by providing a pressure relief valve assembly. Wherein, the relief valve can adjust the pressure release threshold value, and when hot jar internal pressure reached certain degree, liquid can flow out in order to reduce internal pressure of jar from the relief valve.
However, the above-described improved techniques have at least the following technical problems:
(1) the liquid discharger in the first improved technology can only reduce the maximum pressure borne by the hot tank, and can not completely prevent the hot tank from bearing pressure.
(2) The pressure relief valve in the second improved technology is limited by the threshold value of the pressure relief valve, the pressure in the hot tank still exists, and the threshold value is adjustable and unstable.
Therefore, the prior art means can only properly reduce the pressure borne by the hot tank, cannot put an end to the pressure bearing of the hot tank, and the hot tank needs to bear higher pressure, so that the service lives of the hot tank and other parts of the direct water dispenser are shorter.
Disclosure of Invention
In view of the above, the present invention provides a direct water dispenser and a pressure relief method for a hot tank of the direct water dispenser. The main purpose is to make the hot pot of the direct drinking machine always in a low pressure environment so as to prolong the service life of the hot pot and the direct drinking machine.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, embodiments of the present invention provide a direct drinking fountain, including:
heating the tank;
the water inlet pipeline is communicated with the hot tank and is provided with a water inlet valve;
the water outlet pipeline is communicated with the hot tank;
one end of the pressure relief pipeline is communicated with the hot tank, and the other end of the pressure relief pipeline is communicated with the atmosphere; a first pressure relief valve is arranged on the pressure relief pipeline;
and the control system is connected with the first pressure relief valve and is used for controlling the first pressure relief valve to be opened or closed according to the heating state of the hot tank and the water temperature in the hot tank so as to ensure that the hot tank does not bear pressure or the pressure in the hot tank is maintained at a low pressure level.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Further, when the hot tank is heated and the water temperature in the hot tank does not reach the water outlet temperature, the water inlet valve is in a closed state, and the control system controls the first pressure release valve to be opened, so that the hot tank is communicated with the atmosphere.
Further, when the hot tank is heated and the water temperature in the hot tank reaches the water outlet temperature, the water inlet valve is in an open state, and the control system controls the first pressure release valve to be opened periodically so as to perform periodic pressure release on the hot tank.
Further, the control system controls the first pressure release valve to release the pressure of the hot tank once every 1-3 minutes, and the time length of pressure release is 2-10 seconds.
Further, when the hot tank stops heating and is in a heat preservation state, the water inlet valve is in an open state, and the control system controls the first pressure release valve to be closed.
Further, the control system is also connected with the water inlet valve and used for controlling the water inlet valve to be opened or closed.
Further, the control system is also connected with a heating device on the hot tank and used for controlling the heating device to heat the hot tank.
Furthermore, the first pressure release valve and the water inlet valve are electromagnetic valves.
Further, the pressure relief pipeline is connected with the top of the hot tank; or one end of the pressure relief pipeline is communicated with the hot tank through the water outlet pipeline.
Furthermore, the water outlet pipeline comprises a boiled water outlet pipeline and a warm water outlet pipeline; one end of the pressure relief pipeline is communicated with the hot tank through the warm water outlet pipeline.
Further, the direct drinking machine also comprises a heat exchanger; the boiled water outlet pipeline comprises a first branch and a second branch; the first branch passes through the heat exchanger and then is communicated with the warm water outlet pipeline; the second branch is communicated with the warm water outlet pipeline, and a temperature adjusting valve is arranged on the second branch.
Further, the water inlet pipeline penetrates through the heat exchanger, so that cold water in the water inlet pipeline and boiled water in the first branch circuit are subjected to heat exchange.
Further, the direct drinking machine also comprises a second pressure relief valve which is communicated with the top of the hot tank through a pipeline.
Furthermore, the direct drinking machine also comprises a drainage pipeline, and the drainage pipeline is connected with one end of the pressure relief pipeline communicated with the atmosphere; when the direct drinking machine comprises a second pressure release valve, the second pressure release valve is communicated with the drainage pipeline through a pipeline.
On the other hand, the embodiment of the invention provides a pressure relief method for a hot tank of a direct water dispenser, which is used for relieving pressure of the hot tank on the direct water dispenser, and the pressure relief method for the hot tank of the direct water dispenser mainly comprises the following steps: the control system controls the first pressure relief valve to be opened or closed according to the heating state of the hot tank and the water temperature in the hot tank, so that the hot tank does not bear pressure or the pressure in the hot tank is maintained at a low pressure level.
Compared with the prior art, the direct water dispenser and the pressure relief method of the direct water dispenser hot tank have the following beneficial effects:
the direct water dispenser provided by the embodiment of the invention is provided with the pressure relief pipeline, and the control system controls the first pressure relief valve to open or close the pressure relief pipeline, so that the pressure relief of the hot tank is actively controlled, the hot tank does not bear pressure or bears lower pressure in the working process, the service lives of the direct water dispenser and the hot tank thereon are prolonged, and the potential safety hazards of hot tank bursting, pipeline bursting and the like caused by the fact that the hot tank bears higher pressure are eliminated. Compared with the pressure reduction means in the prior art, the direct water dispenser provided by the embodiment actively releases the pressure of the hot tank, so that the pressure is released more thoroughly, the direct water dispenser is not influenced by tap water pressure, the volume of the hot tank and heating temperature, and the hot tank can not bear the pressure or maintain the pressure in the hot tank at a low pressure level.
Further, the control system of the direct water dispenser provided by the embodiment of the invention respectively controls the first pressure release valve according to three conditions of heating the hot tank and leading the water temperature in the hot tank to be lower than the water outlet temperature, heating the hot tank and leading the water temperature in the hot tank to be higher than the water outlet temperature, and leading the hot tank to stop heating and to be in a heat preservation state, so that the hot tank does not bear pressure or bears lower pressure, and the service lives of the hot tank and the direct water dispenser are prolonged.
Further, the pressure relief pipeline of the direct water dispenser provided by the embodiment of the invention is communicated with the hot tank through the warm water outlet pipeline, and through the arrangement, the water temperature discharged by the pressure relief pipeline is lower, so that the pipeline is protected, and the service life of the pipeline is prolonged.
Further, the pressure relief pipeline of the direct water dispenser provided by the embodiment of the invention is directly connected with the top of the hot tank, so that the pressure relief pipeline is closer to the hot tank and the drainage pipeline, and the pressure relief is quicker.
Furthermore, the direct water dispenser provided by the embodiment of the invention further comprises a second pressure release valve, wherein the second pressure release valve is a passive pressure release valve, when the first pressure release valve is damaged and the water pressure in the hot tank reaches a certain degree, the expanded water in the hot tank can be discharged from the second pressure release valve, so that the hot tank is ensured not to bear higher pressure, and the safety of the direct water dispenser is improved.
On the other hand, the pressure relief method for the hot tank of the direct water dispenser provided by the embodiment of the invention is mainly used for relieving the pressure of the hot tank of the direct water dispenser, and the beneficial effects of the pressure relief method are referred to the beneficial effects of the direct water dispenser and are not repeated herein.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a direct drinking machine provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another direct drinking machine provided by the embodiment of the invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Example 1
The present embodiment provides a direct drinking machine, as shown in fig. 1 and fig. 2, the direct drinking machine of the present embodiment includes: a hot tank 1, a water inlet pipeline 2, a water outlet pipeline 3, a pressure relief pipeline 4 and a control system (not shown). Wherein, the water inlet pipeline 2 is communicated with the hot tank 1, and the water inlet pipeline 2 is provided with a water inlet valve 22. Preferably, the water inlet line 2 is connected to the hot tank 1 at a position near the bottom. The water outlet pipeline 3 is communicated with the hot tank 1; preferably, the water outlet line 3 is connected to the top of the hot tank 1. Wherein, one end of the pressure relief pipeline 4 is communicated with the hot tank 1, and the other end is communicated with the atmosphere; and a first pressure relief valve 41 is provided on the pressure relief pipeline 4. The control system is connected to the first relief valve 41 and is configured to control the first relief valve 41 to open or close according to the heating state of the hot tank 1 and the temperature of the water in the hot tank 1, so that the hot tank 1 is not subjected to pressure or the pressure in the hot tank 1 is maintained at a low pressure level. Wherein the low pressure level is the level of tap water pressure.
The straight water dispenser that this embodiment provided is through setting up a pressure release pipeline 4 to open or close the pressure release pipeline through first relief valve 41 of control system control, carry out active control to the pressure release of hot jar 1, so that hot jar 1 does not bear pressure or bear lower pressure in the course of the work, thereby the life of extension straight water dispenser and last hot jar 1, and eliminate hot jar that hot jar 1 arouses owing to bear potential safety hazards such as great pressure bursts, the pipeline spalling. Compared with the pressure reduction means in the prior art, the direct water dispenser provided by the embodiment actively releases the pressure of the hot tank, so that the pressure is released more thoroughly, the direct water dispenser is not influenced by tap water pressure, the volume of the hot tank and heating temperature, and the hot tank 1 can not bear the pressure or maintain the pressure in the hot tank 1 at a low pressure level.
Preferably, the water inlet valve 22 and the first pressure relief valve 41 in the embodiment and the following embodiments are all solenoid valves.
Example 2
Preferably, compared with the previous embodiment, as shown in fig. 1 and 2, the control system of the instant water dispenser in this embodiment controls the opening or closing of the first pressure release valve 41 as follows to realize that the hot tank 1 is not subjected to pressure or to maintain the pressure in the hot tank 1 at a low pressure level.
First, when the hot tank 1 is heated and the water temperature in the hot tank 1 does not reach the water outlet temperature (i.e., the hot tank does not enter water and the user is not allowed to take water):
at this time, the water inlet valve 22 on the water inlet pipeline 2 is in a closed state, and the control system controls the first pressure relief valve 41 to be opened, so that the hot tank 1 is communicated with the atmosphere through the pressure relief pipeline 4, thereby realizing active pressure relief of the hot tank 1. Because the hot tank 1 is communicated with the atmosphere, the expanded moisture generated when the water in the hot tank 1 is heated is continuously discharged through the pressure relief pipeline 4, and at the moment, the hot tank 1 does not bear the pressure.
Second, when the hot tank 1 is heated and the water temperature in the hot tank 1 reaches the water outlet temperature (the hot tank is filled with water, and the user is allowed to take water):
at this time, the water inlet valve 22 on the water inlet pipeline is in an open state, and the control system controls the first pressure relief valve 41 to open periodically so as to relieve the pressure of the hot tank 1 periodically. Preferably, the control system controls the first pressure relief valve 41 to perform pressure relief on the hot tank 1 every 1 to 3 minutes, and the time length of each pressure relief is 2 to 10 seconds. Preferably, the hot tank 1 is depressurized for 5 seconds each time it is opened for a period of two minutes, so that the pressure in the hot tank 1 is maintained at a low pressure level.
Third, when the hot tank 1 stops heating and is in a heat-retaining state (a device waiting for a user to take water):
at this time, the water inlet valve 22 on the water inlet pipeline 2 is in an open state, and the control system controls the first pressure relief valve 41 to close. This process is a process of waiting for a user to take water, and since the hot tank 1 is no longer heated, the highest pressure in the hot tank 1 can be maintained at the level of the water pressure of the tap water, and in this case, the hot tank can be considered to be in a low pressure environment.
The control system of the direct water dispenser provided by the embodiment respectively controls the first pressure release valve 41 according to three situations of heating the hot tank 1, enabling the hot tank 1 not to bear pressure or bear lower pressure, and enabling the water temperature in the hot tank 1 to not reach the water outlet temperature, heating the hot tank 1, enabling the water temperature in the hot tank 1 to reach the water outlet temperature, and enabling the hot tank 1 to stop heating and to be in a heat preservation state, so that the service lives of the hot tank 1 and the direct water dispenser are prolonged.
Example 3
Preferably, compared to the above embodiments, as shown in fig. 1 and fig. 2, the control system of the present embodiment is further connected to the water inlet valve 22 for controlling the water inlet valve 22 to open or close the water inlet pipeline 2. Preferably, the control system is further connected with a heating device on the hot tank 1 for controlling the heating device to heat the hot tank 1. Preferably, the control system is also connected to the temperature detection means of the hot tank 1.
With the above arrangement, the control system can detect the heating state and the water temperature change of the hot tank 1 well, and thus control the first relief valve 41 more quickly.
Example 4
Preferably, this embodiment provides a direct drinking machine, compare with the above-mentioned embodiment, the direct drinking machine in this embodiment mainly adopts following two kinds of schemes to realize the intercommunication of pressure release pipeline and hot jar:
the first scheme is as follows: as shown in fig. 1, the pressure relief pipeline 4 is communicated with the hot tank 1 through the water outlet pipeline 3. The second scheme is as follows: as shown in fig. 2, the pressure relief line 4 is in direct communication with the top of the hot tank 1.
The above-mentioned two kinds of schemes homoenergetic that realize pressure release pipeline and hot jar intercommunication of this embodiment can carry out the pressure release to the hot jar. Compared with the communication scheme in fig. 1, the pressure relief pipeline 4 in fig. 2 is closer to the hot tank 1 and the drain pipeline 5, so that the pressure relief is quicker.
Example 5
Preferably, compared to the above embodiments, as shown in fig. 1 and fig. 2, the water outlet pipeline 3 of the instant water dispenser includes a boiled water outlet pipeline and a warm water outlet pipeline 31. Preferably, a mechanical water tap 311 is also arranged at the free end of the warm water outlet pipeline.
Preferably, as shown in fig. 1, the pressure relief pipeline 4 is communicated with the hot tank 1 through a warm water outlet pipeline 31. Through setting up like this, make the temperature of pressure release 4 drainage lower to the protection pipeline prolongs the life of pipeline.
Preferably, as shown in fig. 1 and 2, the direct drinking water machine of the present embodiment further comprises a heat exchanger 6; the boiled water outlet pipeline comprises a first branch and a second branch; the first branch passes through the heat exchanger 6 and is communicated with the warm water outlet pipeline 31; the second branch is communicated with a warm water outlet pipeline 31, and a temperature adjusting valve 30 is arranged on the second branch. The temperature of the outlet water in the warm water outlet pipeline 31 can be controlled by the temperature adjusting valve 30.
Preferably, the water inlet line 2 passes through a heat exchanger 6 to exchange heat between the cold water in the water inlet line 2 and the boiling water in the first branch. Through such an arrangement, energy can be saved, thereby saving cost.
Preferably, the water inlet pipe 2 is further provided with a water inlet ball valve 20 and a filtering system 21.
Preferably, the water inlet pipeline 2 is further provided with a safety valve 23 at a position close to the water inlet end of the hot tank 1.
Example 6
Preferably, compared with the above embodiments, as shown in fig. 1 and fig. 2, the instant water dispenser further includes a second pressure relief valve 7. The second pressure relief valve 7 is communicated with the top of the hot tank 1 through a pipeline.
The second pressure release valve 7 in this embodiment is a passive pressure release valve, and only when the water pressure in the hot tank 1 reaches a certain level, the moisture expanded in the hot tank 1 is discharged from the second pressure release valve 7. When the first pressure release valve 41 is damaged and has not yet been repaired or replaced, the second pressure release valve 7 is adopted to ensure that the hot tank 1 does not bear higher pressure so as to improve the safety of the direct water dispenser.
Example 7
Preferably, the present embodiment provides a direct drinking machine, compared to the above embodiments, as shown in fig. 1 and fig. 2, the direct drinking machine of the present embodiment further includes a drainage pipeline 5; wherein, the drainage pipeline 5 is communicated with one end of the pressure relief pipeline 4 communicated with the atmosphere.
When the direct water dispenser comprises the second pressure release valve 7 and the safety valve 23, the second pressure release valve 7 and the safety valve 23 are respectively communicated with the drainage pipeline 5 through pipelines.
Example 8
The embodiment provides a pressure relief method for a hot tank of a direct water dispenser, which is mainly used for relieving pressure of the hot tank on the direct water dispenser mentioned in the above embodiment, and specifically, as shown in fig. 1 and fig. 2, the pressure relief method for the hot tank of the direct water dispenser mainly comprises the following steps:
the control system controls the first relief valve 41 to open or close so that the hot tank 1 does not receive pressure or so that the pressure in the hot tank 1 is maintained at a low pressure level, depending on the heating state of the hot tank and the temperature of the water in the hot tank 1.
Preferably, when the hot tank 1 is heated and the temperature of the water in the hot tank 1 does not reach the outlet water temperature, the inlet valve 22 is in a closed state, and the control system controls the first pressure release valve 41 to open, so that the hot tank 1 is communicated with the atmosphere. Thereby realizing the active pressure relief of the hot tank 1. Because the hot tank 1 is communicated with the atmosphere, the expanded moisture generated when the water in the hot tank 1 is heated is continuously discharged through the pressure relief pipeline 4, and at the moment, the hot tank 1 does not bear the pressure.
Preferably, when the hot tank 1 is heated and the temperature of the water in the hot tank 1 reaches the outlet water temperature, the inlet valve 22 is in an open state, and the control system controls the first pressure relief valve 41 to open periodically to relieve the pressure of the hot tank 1 periodically. Preferably, the control system controls the first pressure relief valve 41 to perform pressure relief on the hot tank 1 every 1 to 3 minutes, and the time length of each pressure relief is 2 to 10 seconds. Preferably, the hot tank 1 is depressurized for 5 seconds each time it is opened for a period of two minutes, so that the pressure in the hot tank 1 is maintained at a low pressure level.
Preferably, when the hot tank 1 stops heating and is in the heat preservation state, the water inlet valve 22 is in the open state, and the control system controls the first pressure relief valve 41 to close. This process is a process of waiting for a user to take water, and since the hot tank 1 is no longer heated, the highest pressure in the hot tank 1 can be maintained at the level of the water pressure of the tap water, and in this case, the hot tank can be considered to be in a low pressure environment.
The pressure relief method of the hot tank of the direct water dispenser provided by the embodiment enables the control system on the direct water dispenser to respectively control the first pressure relief valve according to three situations of heating the hot tank, enabling the water temperature in the hot tank to not reach the water outlet temperature, heating the hot tank, enabling the water temperature in the hot tank to reach the water outlet temperature, stopping heating the hot tank and keeping the hot tank in a heat preservation state, and accordingly the hot tank does not bear pressure or bears lower pressure, and the service lives of the hot tank and the direct water dispenser are prolonged.
In summary, the direct water dispenser and the pressure relief method for the hot tank of the direct water dispenser provided by the embodiment of the invention control the opening or closing of the first pressure relief valve through the control system according to the heating state of the hot tank and the water temperature of the hot tank, so as to realize active control on the pressure relief of the hot tank, so that the hot tank does not bear pressure or bears reduced pressure in the working process, thereby prolonging the service life of the direct water dispenser, and eliminating the potential safety hazards of burst of the hot tank, pipeline spalling and the like caused by the fact that the hot tank bears larger pressure.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (15)
1. A direct water dispenser, characterized in that, direct water dispenser includes:
heating the tank;
the water inlet pipeline is communicated with the hot tank and is provided with a water inlet valve;
the water outlet pipeline is communicated with the hot tank;
one end of the pressure relief pipeline is communicated with the hot tank, and the other end of the pressure relief pipeline is communicated with the atmosphere; a first pressure relief valve is arranged on the pressure relief pipeline;
and the control system is connected with the first pressure relief valve and is used for controlling the first pressure relief valve to be opened or closed according to the heating state of the hot tank and the water temperature in the hot tank so as to ensure that the hot tank does not bear pressure or the pressure in the hot tank is maintained at a low pressure level.
2. A direct drinking machine as claimed in claim 1, wherein when the hot tank is heated and the temperature of water in the hot tank does not reach the outlet water temperature,
the water inlet valve is in a closed state, and the control system controls the first pressure release valve to be opened so that the hot tank is communicated with the atmosphere.
3. A direct drinking machine as claimed in claim 1, wherein when the hot tank is heated and the temperature of water in the hot tank reaches the outlet water temperature,
the water inlet valve is in an open state, and the control system controls the first pressure release valve to be opened periodically so as to perform periodic pressure release on the hot tank.
4. A direct drinking machine as claimed in claim 3, wherein the control system controls the first pressure release valve to release pressure to the hot tank once every 1-3 minutes, and the time duration of each pressure release is 2-10 seconds.
5. A direct drinking machine as claimed in claim 1, wherein when the hot tank stops heating and is in a heat-preservation state,
the water inlet valve is in an open state, and the control system controls the first pressure relief valve to close.
6. A direct drinking machine as claimed in any one of claims 1-5, wherein the control system is further connected to the inlet valve for controlling the opening or closing of the inlet valve.
7. A direct drinking machine as claimed in any one of claims 1-5, wherein the control system is further connected to a heating device on the hot tank for controlling the heating device to heat the hot tank.
8. A direct drinking machine as claimed in any one of claims 1-5, wherein the first pressure relief valve and the water inlet valve are solenoid valves.
9. A direct drinking machine as claimed in any one of claims 1-5, wherein the pressure relief pipeline is connected to the top of the hot tank; or one end of the pressure relief pipeline is communicated with the hot tank through the water outlet pipeline.
10. A direct drinking machine as claimed in claim 9, wherein the water outlet pipeline includes a boiled water outlet pipeline and a warm water outlet pipeline; wherein,
one end of the pressure relief pipeline is communicated with the hot tank through the warm water outlet pipeline.
11. A direct drinking fountain according to claim 10, further comprising a heat exchanger; wherein,
the boiled water outlet pipeline comprises a first branch and a second branch; the first branch passes through the heat exchanger and then is communicated with the warm water outlet pipeline; the second branch is communicated with the warm water outlet pipeline, and a temperature adjusting valve is arranged on the second branch.
12. A direct drinking fountain according to claim 11, wherein the water inlet line passes through the heat exchanger to exchange heat between cold water in the water inlet line and boiling water in the first branch.
13. A direct drinking machine as claimed in claim 1, further comprising a second pressure relief valve in communication with the top of the hot tank via a pipeline.
14. A direct drinking machine as claimed in claim 1 or 13, further comprising a drain line connected to the end of the pressure relief line communicating with the atmosphere;
when the direct drinking machine comprises a second pressure release valve, the second pressure release valve is communicated with the drainage pipeline through a pipeline.
15. A pressure relief method for a hot tank of a direct drinking machine, which is used for relieving the pressure of the hot tank on the direct drinking machine as claimed in any one of claims 1 to 14, and is characterized in that the pressure relief method for the hot tank of the direct drinking machine mainly comprises the following steps:
the control system controls the first pressure relief valve to be opened or closed according to the heating state of the hot tank and the water temperature in the hot tank, so that the hot tank does not bear pressure or the pressure in the hot tank is maintained at a low pressure level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936191.1A CN106419585B (en) | 2016-11-01 | 2016-11-01 | Direct water dispenser and pressure relief method of hot tank of direct water dispenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936191.1A CN106419585B (en) | 2016-11-01 | 2016-11-01 | Direct water dispenser and pressure relief method of hot tank of direct water dispenser |
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| CN106419585A true CN106419585A (en) | 2017-02-22 |
| CN106419585B CN106419585B (en) | 2023-11-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113790397A (en) * | 2021-09-24 | 2021-12-14 | 珠海格力电器股份有限公司 | Hot tank pressure system, water injection control method thereof and storage medium |
| CN112021940B (en) * | 2020-09-26 | 2024-11-19 | 广东滤中滤饮水产业集团有限公司 | AI thing allies oneself with energy-conserving water dispenser of ordinary pressure |
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| CN109222660A (en) * | 2017-07-11 | 2019-01-18 | 佛山市顺德区美的饮水机制造有限公司 | Hot tank and water dispenser |
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| CN112624474A (en) * | 2020-12-18 | 2021-04-09 | 珠海格力电器股份有限公司 | Water purification system and control method |
| CN112624474B (en) * | 2020-12-18 | 2024-02-27 | 珠海格力电器股份有限公司 | Control method of water purification system |
| CN113790397A (en) * | 2021-09-24 | 2021-12-14 | 珠海格力电器股份有限公司 | Hot tank pressure system, water injection control method thereof and storage medium |
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