CN219624528U - High-low pressure partition water tank based on cold and hot water directly mixes - Google Patents
High-low pressure partition water tank based on cold and hot water directly mixes Download PDFInfo
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- CN219624528U CN219624528U CN202320592465.5U CN202320592465U CN219624528U CN 219624528 U CN219624528 U CN 219624528U CN 202320592465 U CN202320592465 U CN 202320592465U CN 219624528 U CN219624528 U CN 219624528U
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Abstract
The utility model discloses a high-low pressure partition water tank based on direct mixing of cold water and hot water, which comprises a water tank, wherein the water tank comprises a high-temperature water tank, a low-temperature water tank and a bypass pump, the high-temperature water tank is an open water tank, a high Wen Cejin water gap and a high-temperature side water outlet are respectively arranged on the two side surfaces of the high-temperature water tank, hot water prepared in an external waste heat recovery system enters the high-temperature water tank through a high Wen Cejin water gap, and the cooled water is sent into the external waste heat recovery system by the high-temperature side water outlet to be heated by waste heat continuously; the low-temperature water tank and the high-temperature water tank are integrally formed and partitioned by the partition plate, the low-temperature water tank is a closed water tank, and the surfaces of the two sides of the low-temperature water tank are respectively provided with a low-temperature side water return port and a low-temperature side water outlet, so that the utility model has the beneficial effects that: the system has high heat exchange efficiency and no temperature difference heat loss exchanged by the plate heat exchanger; the huge occupation of the water tank is reduced; the water tank gives consideration to the heat accumulation effect, and is particularly suitable for the condition that the running time of the high temperature side is discontinuous.
Description
Technical Field
The utility model relates to the technical field of waste heat utilization, in particular to a high-low pressure partition water tank based on direct mixing of cold water and hot water.
Background
The waste heat generated in the production activity can be used for generating steam through a waste heat boiler, pushing a steam turbine to do mechanical work or generate electricity, and can also be used for heating or producing hot water. The plate heat exchanger is used for heating low-temperature water, so that the heat exchange efficiency is low, great temperature difference loss exists, most of the plate heat exchangers do not have a heat storage function, and the plate heat exchangers are not suitable for the condition that the operation time at the high temperature side is discontinuous.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides the high-low pressure partition water tank based on direct mixing of cold water and hot water, which is suitable for direct mixing of high-low temperature water, the pressure of a low-temperature water system is higher, the high-temperature water is an open water tank, and particularly, the hot water prepared in a waste heat recovery system is mixed to improve the water temperature of a secondary side, and the secondary side is used for life use such as heating, so that the problems in the background art can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-low pressure partition water tank based on direct mixing of cold water and hot water comprises a water tank, wherein the water tank comprises a high-temperature water tank, a low-temperature water tank and a bypass pump, the high-temperature water tank is an open water tank, a high Wen Cejin water gap and a high-temperature side water outlet are respectively arranged on the two side surfaces of the high-temperature water tank, hot water prepared in an external waste heat recovery system enters the high-temperature water tank through the high Wen Cejin water gap, and the cooled water is sent into the external waste heat recovery system by the high-temperature side water outlet to be heated by waste heat continuously; the low-temperature water tank and the high-temperature water tank are integrally formed and partitioned by a partition plate, the low-temperature water tank is a closed water tank, a low-temperature side water return port and a low-temperature side water outlet are respectively arranged on the two side surfaces of the low-temperature water tank, the low-temperature side water outlet conveys water obtained by mixing water in the low-temperature water tank and raising the temperature to a demand end through a system circulating water pump, and the water cooled by the demand end is conveyed back to the low-temperature water tank through the low-temperature side water return port; the bypass pump is arranged between the high Wen Cejin water gap and the low-temperature side water return port, the water inlet end of the bypass pump is communicated with the high-temperature water tank, and the water outlet end of the bypass pump is communicated with the low-temperature water tank.
As a preferable technical scheme of the utility model, a differential pressure bypass valve is arranged between the high-temperature side water outlet and the low-temperature side water outlet at the outer side of the water tank, and the differential pressure bypass valve is communicated with the high-temperature water tank and the low-temperature water tank.
As an optimized technical scheme of the utility model, the high-temperature water tank and the low-temperature water tank are respectively provided with a high-temperature side water supplementing port and a low-temperature side water supplementing port, and the high-temperature side water supplementing port and the low-temperature side water supplementing port are arranged on one side close to the low-temperature side water outlet.
As a preferable technical scheme of the utility model, the high-temperature water tank and the low-temperature water tank are internally provided with temperature detection devices.
As a preferable technical scheme of the utility model, the side surfaces of the high-temperature water tank and the low-temperature water tank are respectively provided with a high-temperature side sewage outlet and a low-temperature side sewage outlet.
Compared with the prior art, the utility model has the beneficial effects that:
1. the system has high heat exchange efficiency and no temperature difference heat loss exchanged by the plate heat exchanger.
2. Through cold and hot water tank integrated design, the huge occupation of land of water tank has been reduced.
3. The water tank gives consideration to the heat accumulation effect, and is particularly suitable for the condition that the running time of the high temperature side is discontinuous.
Drawings
Fig. 1 is a schematic top view of the present utility model.
In the figure: a high Wen Cejin water gap 1, a high temperature side water outlet 2, a low temperature side water return gap 3, a low temperature side water outlet 4, a bypass pump 5, a differential pressure bypass valve 6, a low temperature side water supplementing gap 7, a high temperature side water supplementing gap 8, a temperature detection device 9, a safety valve 10, a low temperature side sewage draining outlet 11 and a high temperature side sewage draining outlet 12.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a technical solution: the high-low pressure partition water tank based on direct mixing of cold water and hot water comprises a water tank, wherein the water tank comprises a high-temperature water tank, a low-temperature water tank and a bypass pump 5, the high-temperature water tank is an open water tank, a high Wen Cejin water gap 1 and a high-temperature side water outlet 2 are respectively arranged on the two side surfaces of the high-temperature water tank, hot water prepared in an external waste heat recovery system enters the high-temperature water tank through the high Wen Cejin water gap 1, and the cooled water is sent into the external waste heat recovery system by the high-temperature side water outlet 2 to be heated by waste heat continuously; the low-temperature water tank and the high-temperature water tank are integrally formed and partitioned by a partition plate, the low-temperature water tank is a closed water tank, a low-temperature side water return port 3 and a low-temperature side water outlet 4 are respectively arranged on the two side surfaces of the low-temperature water tank, the low-temperature side water outlet 4 conveys water mixed with water in the low-temperature water tank for temperature raising to a demand end such as heating or hot water for production through a system circulating water pump, and the water cooled at the demand end is conveyed back to the low-temperature water tank through the low-temperature side water return port 3; the bypass pump 5 is arranged between the high Wen Cejin water gap 1 and the low-temperature side water return port 3, the water inlet end of the bypass pump 5 is communicated with the high-temperature water tank, the water outlet end of the bypass pump 5 is communicated with the low-temperature water tank, high-temperature water on the high-temperature side is sent to the low-temperature side through the bypass pump 5, and the low-temperature side water return water is mixed and heated, and then is sent to the demand end through the system circulating water pump.
According to the preferred technical scheme, a differential pressure bypass valve 6 is arranged between the high-temperature side water outlet 2 and the low-temperature side water outlet 4 at the outer side of the water tank, the differential pressure bypass valve 6 is communicated with the high-temperature water tank and the low-temperature water tank, and redundant water at the low-temperature side is pressed into the high-temperature water tank at the open side through a differential pressure bypass valve (PT) to be mixed with high-temperature water continuously for temperature raising.
Specifically, hot water prepared in the external waste heat recovery system enters the high-temperature water tank through the high Wen Cejin water gap 1, then high-temperature water at the high-temperature side is sent to the low-temperature water tank through the bypass pump 5, after the low-temperature side backwater is mixed with water and heated, the low-temperature side backwater is sent to a demand end through the low-temperature side water outlet 4 and the system circulating water pump for heating or producing hot water and the like, backwater formed after hot water at the demand end is cooled enters the low-temperature water tank through the low-temperature side backwater gap 3, excessive water enters the high-temperature water tank through the differential pressure bypass valve 6, and after water in the high-temperature water tank is cooled, the backwater is sent to the external waste heat recovery system through the high-temperature side water outlet 2 for heating continuously utilizing waste heat.
The optimized technical scheme is that a high-temperature side water supplementing port 8 and a low-temperature side water supplementing port 7 are respectively arranged on the high-temperature water tank and the low-temperature water tank and are respectively used for supplementing consumed water for the high-temperature water tank and the low-temperature water tank.
Further preferably, the high temperature side water supplementing port 8 and the low temperature side water supplementing port 7 are arranged on one side close to the low temperature side water outlet 4, so that the efficiency of mixing water and extracting temperature can be prevented from being influenced due to entering from the high temperature side.
The optimal technical scheme, all be provided with temperature-detecting device 9 in high temperature water tank and the low temperature water tank, be used for detecting the temperature of high temperature water tank and the interior water of low temperature water tank respectively to the time and the time of intaking etc. of mixing water temperature according to the temperature demand of real-time temperature and demand end.
The tank also comprises a safety valve 10, a bleed valve, a pressure gauge and corresponding sensors, control boxes, distribution boxes etc. of conventional arrangement for normal operation of the system, which are known in the art and are not described in detail here.
The preferred technical scheme, the side surfaces of high temperature water tank and low temperature water tank are provided with high temperature side drain 12 and low temperature side drain 11 respectively, and high temperature water tank and low temperature water tank can form precipitate and other filth etc. after long-time operation, need regularly overhaul, after shut down the maintenance and clear up the water tank, with the filth follow drain discharge can.
Regarding the determination of main parameters such as the water tank in the utility model:
1. volume of high temperature water tank:
V 1 =0.86*Q/（t 1R-1 - t 1R-2 ）/1000*(T 2 - T 1 )
wherein: v (V) 1 Volume m of high temperature water tank 3 ；
Q: high temperature measurement provides heat kW;
t 1R-1 : the temperature of hot water inlet at the high temperature side is lower than the temperature of hot water inlet at the high temperature side;
t 1R-2 : the hot water outlet temperature at the high temperature side;
T 1 : measuring the running time h at high temperature;
T 2 : measuring the running time h at low temperature;
2. volume of low-temperature water tank V 2 =V 1
3. Low-temperature closed side pressure P 1 （KPa）:
Low-temperature closed side pressure P 1 The pressure to the tank segment is calculated from the closed system pressure.
4. High temperature open side pressure P 2 （KPa）:
This pressure is an open tank, atmospheric pressure, considering only the water level pressure.
5. Differential bypass valve pressure differential: Δp=p 2 -P 1 +50
6. Determination of bypass water pump parameters:
(1) The circulating water quantity G of the water pump is the circulating quantity of the high-temperature hot water;
(2) Pump circulation head (KPa): h=p 2 -P 1 +50
The non-disclosed parts of the utility model are all prior art, and the specific structure, materials and working principle thereof are not described in detail. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. High low pressure subregion water tank based on hot and cold water is direct mixes, including the water tank, its characterized in that, the water tank includes:
the high-temperature water tank is an open type water tank, a high Wen Cejin water gap (1) and a high-temperature side water outlet (2) are respectively arranged on the two side surfaces of the high-temperature water tank, hot water prepared in the external waste heat recovery system enters the high-temperature water tank through the high Wen Cejin water gap (1), and the cooled water is sent into the external waste heat recovery system by the high-temperature side water outlet (2) to be heated by waste heat continuously;
the low-temperature water tank and the high-temperature water tank are integrally formed and partitioned by a partition plate, the low-temperature water tank is a closed water tank, a low-temperature side water return port (3) and a low-temperature side water outlet (4) are respectively arranged on the surfaces of two sides of the low-temperature water tank, the low-temperature side water outlet (4) conveys water obtained by mixing water in the low-temperature water tank and extracting temperature into a demand end through a system circulating water pump, and the water cooled by the demand end is conveyed back to the low-temperature water tank through the low-temperature side water return port (3);
the bypass pump (5), bypass pump (5) set up between high Wen Cejin mouth of a river (1) and low temperature side return water mouth (3), and the water inlet of bypass pump (5) communicates with the high temperature water tank, and the play water end of bypass pump (5) communicates with the low temperature water tank.
2. The high-low pressure partition water tank based on direct mixing of cold water and hot water according to claim 1, wherein: a differential pressure bypass valve (6) is arranged between the high-temperature side water outlet (2) and the low-temperature side water outlet (4) at the outer side of the water tank, and the differential pressure bypass valve (6) is communicated with the high-temperature water tank and the low-temperature water tank.
3. The high-low pressure partition water tank based on direct mixing of cold water and hot water according to claim 1, wherein: the high-temperature water tank and the low-temperature water tank are respectively provided with a high-temperature side water supplementing port (8) and a low-temperature side water supplementing port (7), and the high-temperature side water supplementing port (8) and the low-temperature side water supplementing port (7) are arranged on one side close to the low-temperature side water outlet (4).
4. The high-low pressure partition water tank based on direct mixing of cold water and hot water according to claim 1, wherein: temperature detection devices (9) are arranged in the high-temperature water tank and the low-temperature water tank.
5. The high-low pressure partition water tank based on direct mixing of cold water and hot water according to claim 1, wherein: the side surfaces of the high-temperature water tank and the low-temperature water tank are respectively provided with a high-temperature side sewage outlet (12) and a low-temperature side sewage outlet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320592465.5U CN219624528U (en) | 2023-03-23 | 2023-03-23 | High-low pressure partition water tank based on cold and hot water directly mixes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320592465.5U CN219624528U (en) | 2023-03-23 | 2023-03-23 | High-low pressure partition water tank based on cold and hot water directly mixes |
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| Publication Number | Publication Date |
|---|---|
| CN219624528U true CN219624528U (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320592465.5U Active CN219624528U (en) | 2023-03-23 | 2023-03-23 | High-low pressure partition water tank based on cold and hot water directly mixes |
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| Country | Link |
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| CN (1) | CN219624528U (en) |
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- 2023-03-23 CN CN202320592465.5U patent/CN219624528U/en active Active
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