CN220911714U - Negative pressure center internal heat exchange cooling system - Google Patents
Negative pressure center internal heat exchange cooling system Download PDFInfo
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- CN220911714U CN220911714U CN202322555872.1U CN202322555872U CN220911714U CN 220911714 U CN220911714 U CN 220911714U CN 202322555872 U CN202322555872 U CN 202322555872U CN 220911714 U CN220911714 U CN 220911714U
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- negative pressure
- working fluid
- cooling
- gas
- liquid separator
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- 238000001816 cooling Methods 0.000 title claims abstract description 119
- 239000012530 fluid Substances 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 71
- 239000010865 sewage Substances 0.000 claims abstract description 46
- 239000012224 working solution Substances 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an internal heat exchange cooling system of a negative pressure center, which relates to the field of sewage treatment and comprises a negative pressure tank, wherein a cooling pipe is arranged in the negative pressure tank, one side of the negative pressure tank is provided with a gas-liquid separator, the gas-liquid separator is connected with two ends of the cooling pipe through a pipeline, so that working liquid in the gas-liquid separator circulates through the pipeline and the cooling pipe, and a circulating pump for pumping the working liquid in the gas-liquid separator into the cooling pipe is arranged on the pipeline. According to the utility model, the working fluid with the temperature increased in the gas-liquid separator is pumped into the cooling pipe through the circulating pump, the cooling pipe is immersed in the sewage in the negative pressure tank, the cooling of the working fluid is realized through heat exchange between the pipe wall of the cooling pipe and the sewage, the used cooling medium is the sewage collected by the negative pressure tank, and the refilling of the working fluid does not occur in the process of substantial cooling.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to a negative pressure center internal heat exchange cooling system.
Background
The negative pressure power center mainly collects sewage in a negative pressure intelligent collector in a tree-shaped negative pressure collecting pipe network into a negative pressure collecting tank at the tail end of the system through negative pressure, and then performs concentrated discharge or treatment.
The negative pressure center consists of a water ring negative pressure pump set, a gas-liquid separator, a negative pressure tank, a sewage pump set, an electric control cabinet and a deodorizing module.
The working fluid cooling of the water ring negative pressure pump set is realized by heat exchange between the working fluid with increased temperature and the metal outer wall of the gas-liquid separator, and then the metal outer wall is cooled by ambient air cooling, so that the internal working fluid is subjected to indirect heat exchange to reduce the temperature, and the cooling effect is poor due to the relation between the ambient temperature and the air quantity, and the time required for reaching the expected effect is long. Or the working fluid is slowly replaced by filling the working fluid, so that the total volume of the working fluid is increased, heat exchange is generated in the interior, and the temperature is reduced. The operation method can effectively perform heat exchange, but needs to fill the working fluid for a long time to promote the heat exchange, so that a large amount of working fluid is needed, and waste of the working fluid is easily caused.
Disclosure of utility model
In order to overcome the defects, the utility model aims to provide the negative pressure center internal heat exchange cooling system which enables working solution in the gas-liquid separator to circulate in sewage through the cooling pipe, saves the working solution and saves the cooling cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the heat exchange cooling system in the negative pressure center comprises a negative pressure tank, and the bottom of the negative pressure tank is water which is stored throughout the year. The negative pressure tank is internally provided with a cooling pipe, and working fluid of the gas-liquid separator is introduced into the cooling pipe. One side of negative pressure jar is provided with gas-liquid separator, the both ends of gas-liquid separator and cooling tube pass through the pipe connection for the working solution in the gas-liquid separator circulates through pipeline and cooling tube, and the working solution carries out heat exchange with sewage in the negative pressure jar through the cooling tube, has replaced traditional service environment forced air cooling to cool down to the working solution, has improved the efficiency that the working solution cooled down. Compared with the traditional filling working solution for cooling, the device avoids wasting a large amount of working solution and saves the operation and maintenance cost of the system.
The pipeline is provided with a circulating pump for pumping the working fluid in the gas-liquid separator into the cooling pipe, and the circulating pump is used for pumping the working fluid with the temperature in the gas-liquid separator raised into the cooling pipe, so that power is provided for the flow of the working fluid. The working solution enters the cooling pipe in the negative pressure tank in a slow flow mode, and the pipe wall of the cooling pipe immersed in the negative pressure tank exchanges heat with sewage in the tank, so that the cooling of the working solution is realized.
The negative pressure center internal heat exchange cooling system further comprises a controller, and the circulating pump is electrically connected with the controller.
According to the application, the working fluid with the temperature in the gas-liquid separator being raised is pumped into the cooling pipe through the circulating pump, the cooling pipe is immersed in the sewage in the negative pressure tank, and the cooling of the working fluid is realized through heat exchange between the pipe wall of the cooling pipe and the sewage. The used cooling medium is sewage collected by the negative pressure tank, and the refilling of the working solution does not occur in the process of substantial cooling.
Further is: the cooling pipe is characterized in that a working fluid inlet and a working fluid outlet are respectively arranged at two ends of the cooling pipe, the working fluid inlet and the working fluid outlet are arranged on the negative pressure tank, the working fluid with the temperature increased enters the cooling pipe from the working fluid inlet, and the cooled working fluid flows out through the working fluid outlet.
The working fluid inlet is provided with a first electromagnetic valve, the working fluid outlet is provided with a second electromagnetic valve, the first electromagnetic valve is used for controlling the on-off of the working fluid inlet, and the second electromagnetic valve is used for controlling the on-off of the working fluid outlet.
Further is: the gas-liquid separator is internally provided with a temperature sensor for detecting the temperature of the working fluid, and the temperature sensor is electrically connected with the controller. The threshold value of the temperature sensor is preset in the controller. The temperature sensor is used for detecting the temperature of the working fluid in the gas-liquid separator, and when the temperature of the working fluid in the gas-liquid separator is higher than a preset value, a signal is sent to the controller, and the controller controls the start of cooling the high-temperature working fluid.
Further is: the gas-liquid separator is internally provided with a liquid level sensor for detecting the liquid level in the gas-liquid separator, and the liquid level sensor is used for detecting the liquid level in the gas-liquid separator. The liquid level sensor is electrically connected with the controller. The threshold value of the liquid level sensor is preset in the controller.
And (3) cooling the high-temperature working solution:
When the working solution needs to be cooled, the circulating pump starts to work, the working solution with high temperature is pumped out, the liquid level of the working solution of the gas-liquid separator is reduced, after the working solution is reduced to a section, the external electromagnetic valve is opened to supplement water to the gas-liquid separator, in the process, the working solution is supplemented, heat exchange is carried out after the working solution is mixed with the working solution with high temperature, and the temperature of the working solution is controlled to be reduced under the action of the working solution again.
In the operation interval, after the temperature is controlled, the circulating pump is closed, a part of working solution is stored in the cooling pipe, the working solution is subjected to heat exchange with sewage through the cooling pipe and cooled to the room temperature, and when the working solution in the gas-liquid separator is subjected to heat exchange again, the reserved working solution with the temperature in the circulating pump operation cooling pipe can flow back to the gas-liquid separator preferentially to accelerate the cooling speed of heat exchange.
Further is: the cooling pipes are distributed in a serpentine shape in the negative pressure tank, so that the contact area between the pipe wall of the cooling pipe and sewage in the negative pressure tank is increased, the heat dissipation area is increased, and the cooling effect of the working fluid is improved. The actual cooling surface area of the cooling pipe is designed according to the cooling control temperature of the working fluid, the flow rate of the circulating pump and the length of the pipeline, so that the residence time of the working fluid in the negative pressure tank is ensured.
Further is: the cooling pipe adopts the metal material, and the cooling pipe of metal material possesses certain rigidity to the heat conduction effect is good, makes the cooling effect of working solution good.
Further is: the sewage inlet and the sewage outlet are arranged on the negative pressure tank, and sewage enters from the sewage inlet of the negative pressure tank and is discharged from the sewage outlet. The negative pressure tank is internally provided with a sewage layer and a silt layer, and the cooling pipe is arranged above the silt layer and below the sewage layer.
The installation position of the cooling pipe inside the negative pressure tank is analyzed according to the water level of the negative pressure center operation system and a silt layer existing at the bottom, the cooling pipe is installed above the silt layer, and the cooling water is below the lowest liquid level, so that the cooling water is immersed by sewage and cannot be wrapped by the sludge, and the heat preservation effect is achieved.
The utility model has the beneficial effects that the working solution with the temperature increased in the gas-liquid separator is pumped into the cooling pipe through the circulating pump, the cooling pipe is immersed in the sewage in the negative pressure tank, and the cooling of the working solution is realized through heat exchange between the pipe wall of the cooling pipe and the sewage. The used cooling medium is sewage collected by the negative pressure tank, and the refilling of the working solution does not occur in the process of substantial cooling.
Drawings
FIG. 1 is a schematic view of a negative pressure tank according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 3 is a front view of a negative pressure tank according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of A-A;
In the figure: 1. a negative pressure tank; 2. a cooling tube; 3. a gas-liquid separator; 4. a pipeline; 5. a circulation pump; 6. a working fluid inlet; 7. a working fluid outlet; 8. a temperature sensor; 9. a liquid level sensor; 10. a sewage inlet; 11. a sewage outlet; 12. a sewage layer; 13. and (5) a silt layer.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-2, an embodiment of the present application provides a negative pressure center internal heat exchange cooling system including a negative pressure tank 1, wherein the bottom of the negative pressure tank 1 is water which is stored throughout the year. The negative pressure tank 1 is internally provided with a cooling pipe 2, and working fluid of the gas-liquid separator 3 is introduced into the cooling pipe 2. One side of negative pressure jar 1 is provided with gas-liquid separator 3, gas-liquid separator 3 passes through pipeline 4 with the both ends of cooling tube 2 to be connected for the working solution in the gas-liquid separator 3 circulates through pipeline 4 and cooling tube 2, and the working solution carries out the heat exchange with sewage in negative pressure jar 1 through cooling tube 2, has replaced traditional service environment forced air cooling to cool down to the working solution, has improved the efficiency that the working solution cooled down. Compared with the traditional filling working solution for cooling, the device avoids wasting a large amount of working solution and saves the operation and maintenance cost of the system.
The pipeline 4 is provided with a circulating pump 5 for pumping the working fluid in the gas-liquid separator 3 into the cooling pipe 2, and the circulating pump 5 is used for pumping the working fluid with the temperature in the gas-liquid separator 3 raised into the cooling pipe 2, so as to provide power for the flow of the working fluid. The working solution enters the cooling pipe 2 in the negative pressure tank 1 in a slow flow mode, and the pipe wall of the cooling pipe 2 immersed in the negative pressure tank 1 exchanges heat with sewage in the tank, so that the cooling of the working solution is realized.
The negative pressure center internal heat exchange cooling system further comprises a controller, and the circulating pump 5 is electrically connected with the controller.
According to the application, the working fluid with the temperature increased in the gas-liquid separator 3 is pumped into the cooling pipe 2 through the circulating pump 5, the cooling pipe 2 is immersed in the sewage in the negative pressure tank 1, and the cooling of the working fluid is realized through heat exchange between the pipe wall of the cooling pipe 2 and the sewage. The used cooling medium is the sewage collected by the negative pressure tank 1, and the refilling of the working solution does not occur in the process of substantial cooling.
On the basis of the above, the two ends of the cooling pipe 2 are respectively provided with a working fluid inlet 6 and a working fluid outlet 7, the working fluid inlet 6 and the working fluid outlet 7 are arranged on the negative pressure tank 1, the working fluid with the temperature increased enters the cooling pipe 2 from the working fluid inlet 6, and the cooled working fluid flows out through the working fluid outlet 7.
The working fluid inlet 6 is provided with a first electromagnetic valve (not shown in the figure), the working fluid outlet 7 is provided with a second electromagnetic valve (not shown in the figure), the first electromagnetic valve is used for controlling the on-off of the working fluid inlet 6, and the second electromagnetic valve is used for controlling the on-off of the working fluid outlet 7.
On the basis of the above, a temperature sensor 8 for detecting the temperature of the working fluid is arranged in the gas-liquid separator 3, and the temperature sensor 8 is electrically connected with the controller. The threshold value of the temperature sensor 8 is preset in the controller. The temperature sensor 8 is used for detecting the temperature of the working fluid in the gas-liquid separator 3, and sending a signal to the controller when the temperature of the working fluid in the gas-liquid separator 3 is higher than a preset value, and the controller controls the start of cooling the high-temperature working fluid.
On the basis of the above, a liquid level sensor 9 for detecting the liquid level in the gas-liquid separator 3 is arranged in the gas-liquid separator 3, and the liquid level sensor 9 is used for detecting the liquid level in the gas-liquid separator 3. The liquid level sensor 9 is electrically connected with the controller. The threshold value of the liquid level sensor 9 is preset in the controller.
And (3) cooling the high-temperature working solution:
When the working solution needs to be cooled, the circulating pump 5 starts to work, the working solution with high temperature is pumped out, the liquid level of the working solution of the gas-liquid separator 3 is reduced, after the working solution is reduced to a section, the external electromagnetic valve is opened, water supplementing is started to the inside of the gas-liquid separator 3, in the process, the working solution is supplemented, heat exchange is carried out after the working solution is mixed with the working solution with high temperature, and the temperature of the working solution is controlled to be reduced again.
In the operation interval, after the temperature is controlled, the circulating pump 5 is closed, a part of working fluid is stored in the cooling pipe 2, heat exchange is carried out between the working fluid and sewage through the cooling pipe 2, the working fluid is cooled to the room temperature, and when the working fluid in the gas-liquid separator 3 is subjected to heat exchange again, the reserved working fluid with the temperature in the circulating pump 5 operating the cooling pipe 2 can flow back to the gas-liquid separator 3 to carry out heat exchange to accelerate the cooling speed.
On the basis, the cooling pipes 2 are arranged in a serpentine shape in the negative pressure tank 1, so that the contact area between the pipe walls of the cooling pipes 2 and sewage in the negative pressure tank 1 is increased, the heat dissipation area is increased, and the cooling effect of the working fluid is improved. The actual cooling surface area of the cooling pipe 2 is designed according to the control temperature of the working fluid, the flow rate of the circulating pump 5 and the length of the pipeline 4, so that the residence time of the working fluid in the negative pressure tank 1 is ensured.
On the basis, the cooling pipe 2 is made of metal, and the cooling pipe 2 made of metal has certain rigidity and good heat conduction effect, so that the cooling effect of the working solution is good.
On the basis of the above, as shown in fig. 3-4, the negative pressure tank 1 is provided with a sewage inlet 10 and a sewage outlet 11, and sewage enters from the sewage inlet 10 of the negative pressure tank 1 and is discharged from the sewage outlet 11. The negative pressure tank 1 is internally provided with a sewage layer 12 and a sludge layer 13, and the cooling pipe 2 is arranged above the sludge layer 13 and below the sewage layer 12.
The installation position of the cooling pipe 2 inside the negative pressure tank 1 is analyzed according to the water level height of the negative pressure central operation system and the silt layer 13 existing at the bottom, the cooling pipe 2 is installed above the silt layer, and the cooling water is below the lowest water level, so that the cooling water is immersed by sewage and cannot be wrapped by the sludge, and the heat preservation effect is guaranteed.
The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The utility model provides an inside heat exchange cooling system of negative pressure center, includes negative pressure jar (1), its characterized in that: be provided with cooling tube (2) in negative pressure jar (1), one side of negative pressure jar (1) is provided with gas-liquid separator (3), gas-liquid separator (3) are connected through pipeline (4) with the both ends of cooling tube (2) for the working solution in gas-liquid separator (3) circulates through pipeline (4) and cooling tube (2), be provided with on pipeline (4) and be used for extracting circulating pump (5) in cooling tube (2) with the working solution in gas-liquid separator (3).
2. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: the cooling device is characterized in that working fluid inlets (6) and working fluid outlets (7) are respectively formed in two ends of the cooling tube (2), the working fluid inlets (6) and the working fluid outlets (7) are formed in the negative pressure tank (1), a first electromagnetic valve is arranged at the working fluid inlet (6), and a second electromagnetic valve is arranged at the working fluid outlet (7).
3. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: a temperature sensor (8) for detecting the temperature of the working fluid is arranged in the gas-liquid separator (3).
4. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: a liquid level sensor (9) for detecting the liquid level in the gas-liquid separator (3) is arranged in the gas-liquid separator (3).
5. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: the cooling pipes (2) are arranged in a serpentine shape in the negative pressure tank (1).
6. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: the cooling pipe (2) is made of metal.
7. A negative pressure center internal heat exchange cooling system according to claim 1, wherein: be provided with on negative pressure jar (1) into dirty mouthful (10) and drain (11), have sewage layer (12) and silt layer (13) in negative pressure jar (1), cooling tube (2) are installed above silt layer (13), and install below sewage layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322555872.1U CN220911714U (en) | 2023-09-20 | 2023-09-20 | Negative pressure center internal heat exchange cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322555872.1U CN220911714U (en) | 2023-09-20 | 2023-09-20 | Negative pressure center internal heat exchange cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220911714U true CN220911714U (en) | 2024-05-07 |
Family
ID=90920967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322555872.1U Active CN220911714U (en) | 2023-09-20 | 2023-09-20 | Negative pressure center internal heat exchange cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220911714U (en) |
-
2023
- 2023-09-20 CN CN202322555872.1U patent/CN220911714U/en active Active
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