CN216454868U - Waste water heat recovery water tank and dish washer - Google Patents
Waste water heat recovery water tank and dish washer Download PDFInfo
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- CN216454868U CN216454868U CN202121738598.6U CN202121738598U CN216454868U CN 216454868 U CN216454868 U CN 216454868U CN 202121738598 U CN202121738598 U CN 202121738598U CN 216454868 U CN216454868 U CN 216454868U
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- waste water
- heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The utility model relates to a waste water heat recovery water tank which comprises a water tank body, wherein a waste water inlet, a waste water outlet, a tap water inlet and a tap water outlet are formed in the water tank body, a heat exchange pipe and a drainage rod are arranged in the water tank body, one end of the heat exchange pipe is connected with the tap water inlet, the other end of the heat exchange pipe is connected with the tap water outlet, the drainage rod is connected with the waste water outlet, and a buoyancy ring is arranged above the drainage rod. By adopting the structure, the heat recovery device has the beneficial effects of simple structure and high heat recovery efficiency.
Description
Technical Field
The utility model relates to the technical field of commercial dish washing machines, in particular to a wastewater heat recovery water tank and a dish washing machine.
Background
The existing dish washer collects and stores hot waste water through a waste water heat recovery water tank, and a spiral coil is arranged in the waste water heat recovery water tank, wherein normal-temperature tap water to be fed into the dish washer is arranged inside the coil, the collected high-temperature waste water at about 55-60 ℃ is arranged outside the coil, when the internal normal-temperature water flows through the spiral coil, heat exchange is generated between the internal normal-temperature water and the external high-temperature waste water, and after the heat exchange, the temperature of the internal normal-temperature water rises. In this way, the initial temperature of the water entering the heating bag is increased, thereby reducing the heat required by heating the rinsing water to 82 ℃, reducing the heating energy consumption, reducing the heating time and achieving the purpose of saving energy.
However, in the conventional commercial dishwasher, a wastewater overflow rod is disposed in the wastewater heat recovery tank, an overflow inlet is disposed above the wastewater overflow rod, and when the liquid level of the high-temperature wastewater in the energy-saving wastewater heat recovery tank is higher than the overflow inlet of the wastewater overflow rod, the high-temperature wastewater is discharged into the sewer through the wastewater discharge port. Due to the stratification effect of the still hot water in the tank, i.e. in the hot water the temperature of the water is higher at higher water levels. Therefore, the temperature of the waste water discharged from the waste water heat recovery water tank is higher than that of the waste water left at the bottom of the waste water heat recovery water tank, so that the heat recovery efficiency is reduced.
In order to improve the heat exchange efficiency of the waste water heat recovery water tank, an overflow guide pipe is arranged outside a waste water overflow rod of the conventional waste water heat recovery water tank to form an annular flow guide cavity, and when the water level in the overflow guide pipe is higher than that of the waste water overflow rod, the waste water is discharged out of the water tank. In this way, the low-temperature water at the bottom of the waste water heat recovery water tank can be discharged first, so that the heat recovery efficiency is increased. However, because the overflow guide pipe and the wastewater overflow rod are both arranged in the wastewater heat recovery water tank, the low-temperature wastewater in the annular diversion cavity passes through the heat exchange again, so that the heat recovery efficiency is reduced.
Therefore, improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waste water heat recovery water tank, which aims to solve the problem of low heat recovery efficiency of the existing waste water heat recovery water tank. A second object of the present invention is to provide a dishwasher.
In order to achieve the purpose, the utility model adopts the following technical scheme:
as a first aspect of the present invention, a waste water heat recovery water tank includes a water tank body, the water tank body is provided with a waste water inlet, a waste water outlet, a tap water inlet, and a tap water outlet, a heat exchange pipe and a drain rod are arranged in the water tank body, one end of the heat exchange pipe is connected to the tap water inlet, the other end of the heat exchange pipe is connected to the tap water outlet, the drain rod is connected to the waste water outlet and is configured to open or close the waste water outlet, and a buoyancy ring is arranged above the drain rod. When the water level reaches a set high water level and the liquid buoyancy is larger than the weight of the drainage rod, the drainage rod is lifted, and the low-temperature wastewater at the bottom of the water tank body is discharged out of the water tank body through the wastewater discharge port; when the water level is lowered, the buoyancy is reduced, the drainage rod freely falls down due to self weight to block the waste water outlet, and excessive high-temperature water is prevented from losing.
According to the utility model, the water tank body is also internally provided with the guide sleeve, and the guide sleeve is arranged outside the drainage rod and plays a role in guiding, so that the drainage rod is ensured to be vertically installed, and the sealing property is ensured.
Furthermore, the bottom of uide bushing is equipped with three at least supports, the support can be dismantled with the bottom of water tank body and be connected. When the water tank is used, the support is fixed at the bottom of the water tank body, so that the guide sleeve is fixed in the water tank body. It should be noted that the support is provided with a mounting hole, and the support is fixed at the bottom of the water tank body by screws.
According to the utility model, the heat exchange tube is a spiral heat exchange tube, the heat exchange tube increases the internal volume of the coil and reduces the whole volume of the coil, and the effective volume in the tube is larger than the water consumption of single cleaning. Get into hot exchange pipe after normal atmospheric temperature running water gets into hot exchange pipe, get into hot exchange pipe's bottom rapidly, through spiral coil pipe again, from up arriving the export down, this and the waste water temperature in the water tank body from up the waste water that the temperature increases progressively down, produced best heat exchange effect.
According to the utility model, the waste water inlet and the tap water outlet are arranged above the water tank body, the tap water inlet is arranged below the water tank body, and when normal-temperature tap water enters the heat exchange pipe, the normal-temperature tap water rapidly enters the bottom of the heat exchange pipe and reaches the outlet from bottom to top, so that the best heat exchange effect is generated with waste water with the temperature of the waste water in the waste water heat recovery water tank increasing from bottom to top.
Furthermore, the bottom of the water tank body is provided with a liquid inlet which is connected with the bottom of the main washing water tank through a drainage pipeline.
Furthermore, the drainage rod is connected with the waste water outlet in a sealing mode through an O-shaped ring.
As a second aspect of the present invention, a dishwasher includes a main wash tank and the above-described waste water heat recovery tank.
The waste water heat recovery water tank has the beneficial effects that:
the high-temperature waste water enters the waste water heat recovery water tank through the waste water inlet, and the waste water in the waste water heat recovery water tank is static in the running process of the machine, so that a cold-hot water layering effect can be generated, namely, in the static hot water, the higher the water level is, the higher the water temperature is. Therefore, design the lifting rod of area buoyancy with the drain bar, promptly, place the buoyancy ring at the top of drain bar, reach the high water level when the water level, liquid buoyancy lifts the drain bar, and the waste water heat recovery water tank just can discharge to the low temperature water of the bottom of water tank body, and the water level descends the back, and the drain bar freely falls and plugs up the waste water outlet, prevents too much high temperature water loss. Therefore, the waste water heat recovery water tank is simple in structure and high in energy utilization rate.
Drawings
Fig. 1 is a schematic structural view of a waste water heat recovery water tank of the present invention.
Detailed Description
The waste water heat recovery water tank of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the waste water heat recovery water tank of the present invention comprises a water tank body 1, wherein the water tank body 1 is provided with a waste water inlet 11, a waste water outlet 12, a tap water inlet 13 and a tap water outlet 14, a heat exchange tube 2 and a drain rod 3 are arranged in the water tank body 1, one end of the heat exchange tube 2 is connected with the tap water inlet 13, the other end of the heat exchange tube is connected with the tap water outlet 14, the drain rod 3 is connected with the waste water outlet 12 and is used for opening or closing the waste water outlet 12, and a buoyancy ring 4 is arranged above the drain rod 3. When the water level reaches a set high water level, the buoyancy of the liquid is larger than the weight of the drainage rod 3, the drainage rod 3 is lifted, and the low-temperature wastewater at the bottom of the water tank body 1 is discharged out of the water tank body 1 through the wastewater discharge port 12; when the water level is lowered, the buoyancy is reduced, the drain rod 3 freely falls down due to the self-weight to block the waste water outlet 12, and excessive high-temperature water loss is prevented. It should be noted that the drain bar 3 is preferably a hollow pipe structure, which can reduce cost and weight. When the device is used, tap water input from the outside and high-temperature wastewater in the wastewater heat recovery water tank are subjected to heat exchange through the heat exchange pipe 2, and then the tap water with the temperature increased is output to the heating bag.
Still be equipped with uide bushing 5 in the water tank body 1, uide bushing 5 sets up in the outside of drain bar 3, plays the guide effect, ensures that drain bar 3 can install perpendicularly to guarantee the leakproofness.
The bottom of the guide sleeve 5 is provided with at least three supports 6, and when the water tank is used, the supports 6 are fixed at the bottom of the water tank body 1, so that the guide sleeve 5 is fixed in the water tank body 1. It should be noted that the support may be fixed to the bottom of the tank body in various ways. For example, the support is provided with a mounting hole, and the support is fixed at the bottom of the water tank body by screws.
The heat exchange tube 2 is a spiral heat exchange tube, the heat exchange tube 2 increases the internal volume of the coil and reduces the whole volume of the coil, and the effective volume in the tube is larger than the water consumption of single cleaning. Get into hot exchange pipe 2 back when normal atmospheric temperature running water gets into, get into hot exchange pipe's bottom rapidly, through spiral coil pipe again, from up arriving the export down, this and the waste water temperature in the water tank body from up the waste water that the temperature increases progressively down, produced best heat exchange effect.
The bottom of the water tank body 1 is provided with a liquid inlet 15, and the liquid inlet is connected with the bottom of the main washing water tank through a drainage pipeline.
The drainage rod 3 is hermetically connected with the waste water outlet 12 through an O-shaped ring. When the drainage is needed, the drainage rod 3 is pulled out to drain the waste water.
The waste water heat recovery water tank can be used in a dish washing machine, the liquid inlet of the waste water heat recovery water tank is connected with the bottom of a main washing water tank of the dish washing machine through a drain pipe, and the waste water inlet of the waste water heat recovery water tank is connected with the upper part of the main washing water tank through an overflow pipe.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a waste water heat recovery water tank, includes the water tank body, its characterized in that is equipped with waste water inlet, waste outlet, running water inlet and running water delivery port on the water tank body, this internal hot exchange pipe and the drain bar of being equipped with of water tank, hot exchange pipe's one end is connected with the running water inlet, and the other end is connected with the running water delivery port, the drain bar is connected with the waste water outlet, the top of drain bar is equipped with the buoyancy ring.
2. The waste water heat recovery tank as claimed in claim 1, wherein a guide sleeve is further provided in the tank body, the guide sleeve being disposed outside the drain rod.
3. The waste water heat recovery tank of claim 2, wherein the guide sleeve has at least three supports at a bottom thereof, and the supports are detachably connected to the bottom of the tank body.
4. The wastewater heat recovery tank of claim 1, wherein the heat exchange tubes are spiral heat exchange tubes.
5. The waste water heat recovery water tank as claimed in claim 1, wherein the waste water inlet and the tap water outlet are provided above the water tank body, and the tap water inlet is provided below the water tank body.
6. The waste water heat recovery tank as claimed in claim 1, wherein the tank body is provided at a bottom thereof with a liquid inlet.
7. The waste water heat recovery tank of claim 1, wherein the drain rod is sealingly connected to the waste outlet by an O-ring.
8. A dishwasher, comprising a main wash tank and a waste water heat recovery tank as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738598.6U CN216454868U (en) | 2021-07-28 | 2021-07-28 | Waste water heat recovery water tank and dish washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121738598.6U CN216454868U (en) | 2021-07-28 | 2021-07-28 | Waste water heat recovery water tank and dish washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216454868U true CN216454868U (en) | 2022-05-10 |
Family
ID=81431814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121738598.6U Active CN216454868U (en) | 2021-07-28 | 2021-07-28 | Waste water heat recovery water tank and dish washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216454868U (en) |
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2021
- 2021-07-28 CN CN202121738598.6U patent/CN216454868U/en active Active
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