CN218480673U - Preheating and water replenishing device of heat exchange unit - Google Patents
Preheating and water replenishing device of heat exchange unit Download PDFInfo
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- CN218480673U CN218480673U CN202222804654.2U CN202222804654U CN218480673U CN 218480673 U CN218480673 U CN 218480673U CN 202222804654 U CN202222804654 U CN 202222804654U CN 218480673 U CN218480673 U CN 218480673U
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Abstract
The application relates to a heat exchanger unit preheats moisturizing device, including water supply tank, moisturizing pipeline, moisturizing water pump and preheating water tank, moisturizing pipeline both ends respectively with water supply tank and preheating water tank intercommunication, moisturizing water pump both ends all with moisturizing pipeline intercommunication, municipal water supply pipeline and water supply tank intercommunication, preheating water tank both ends all with secondary return water pipeline intercommunication. The water supply tank is used for storing low-temperature water from a municipal water supply pipeline, the low-temperature water is pumped into the preheating tank through the water supplementing pipeline and the water supplementing water pump, a large amount of warm water from a secondary water return pipeline of the heat exchange system is stored in the preheating tank in a circulating mode, the warm water is mixed with supplemented low-temperature water, the supplemented low-temperature water is slowly neutralized and heated by the warm water flowing continuously in a circulating mode, and then the warm water is supplemented into the secondary circulating water pipe network along with the secondary water return pipeline. This application has and has a buffering preheating process when replenishing the circulating water, avoids secondary pipe network circulating water to produce the instant great difference in temperature of local when the moisturizing, reduces the effect of temperature fluctuation range.
Description
Technical Field
The application relates to the technical field of heat exchanger unit equipment, in particular to a preheating and water supplementing device of a heat exchanger unit.
Background
At present, central heating becomes a necessary mode for heating in winter in northern areas, a heat exchange station and a heat exchange unit matched with the heat exchange station are often built in a newly-built community, and heat exchange of media in a municipal heat supply primary pipeline and a community secondary pipeline is realized through the heat exchange unit.
The secondary pipeline is in the heat supply in-process, and the hot water supply in the pipeline can inevitable run off, therefore the moisturizing device is the important component of heat exchanger unit, and the moisturizing device is when using, utilizes the water pump to take out the water in the water tank and directly sends into the secondary return water pipeline of heat exchanger unit.
According to the related technology, the water supplementing temperature is far lower than the water temperature of the secondary water return pipeline, the water is directly injected into the secondary pipe network, the local water temperature of the secondary pipe network is obviously reduced within a period of time, and the heat supply efficiency obviously fluctuates.
SUMMERY OF THE UTILITY MODEL
In order to avoid secondary pipe network circulating water to produce the instantaneous great difference in temperature of local when the moisturizing, reduce the fluctuation range of temperature, this application provides heat exchanger group and preheats moisturizing device.
The application provides heat exchanger unit preheats moisturizing device adopts following technical scheme:
heat exchanger unit preheats moisturizing device, including water supply tank, moisturizing pipeline and moisturizing water pump, still including preheating the water tank, moisturizing pipeline one end and water supply tank intercommunication, the other end and preheating the water tank intercommunication, the moisturizing water pump is located moisturizing pipeline department, moisturizing water pump both ends all communicate with moisturizing pipeline, water supply tank and municipal water supply pipeline intercommunication, preheating the water tank both ends all communicate with heat exchanger unit's secondary return water pipeline.
By adopting the technical scheme, the water supply tank is used for storing low-temperature water from a municipal water supply pipeline, the low-temperature water is pumped into the preheating tank through the water replenishing pipeline and the water replenishing water pump, a large amount of warm water from the secondary water return pipeline of the heat exchange system is stored in the preheating tank in a circulating mode, the warm water is mixed with the supplemented low-temperature water, the supplemented low-temperature water is slowly neutralized and heated by the warm water flowing in a continuous circulating mode, and then the warm water is supplemented into the secondary circulating water pipe network along with the secondary water return pipeline. When circulating water is replenished, a buffer preheating process is provided, so that the replenished low-temperature water is prevented from directly entering a secondary pipe network, further, the phenomenon that the circulating water of the secondary pipe network generates local instantaneous large temperature difference when replenishing water is avoided, and the fluctuation range of water temperature is reduced.
Optionally, the secondary water return pipeline is communicated with the position, close to the bottom, of the side face of the preheating water tank, and the water supplementing pipeline is communicated with the position, close to the top, of the side face of the preheating water tank.
Through adopting above-mentioned technical scheme, the low temperature of moisturizing pipeline output is lower, and the warm water temperature of secondary return water pipeline output is higher, and cold water density is higher than hot water, and cold water gets into preheating water tank and is favorable to accelerating the heat exchange of cold water and warm water last, improves and preheats efficiency. The communication part of the secondary water return pipeline and the preheating water tank is positioned at the lower position of the side surface of the preheating water tank, so that more water in the preheating water tank can be added into the secondary pipe network, the water adding capability of the preheating water adding device is exerted to the maximum extent, and the risk that air enters the secondary pipe network due to water shortage is reduced.
Optionally, a liquid level alarm is arranged on the inner wall of the preheating water tank and located above the communication position of the secondary water return pipeline and the preheating water tank.
By adopting the technical scheme, when the water quantity in the preheating water tank is insufficient, especially when the liquid level drops to the position above the communication position of the secondary water return pipeline and the preheating water tank, the liquid level alarm gives an alarm, and the water can be timely supplemented by suitcase operators.
Optionally, a plurality of baffle plates are arranged between the water replenishing pipeline and the secondary water return pipeline in the preheating water tank, the area of each baffle plate is larger than half of the cross section area of the preheating water tank, and the baffle plates are fixedly connected to two sides of the inner wall of the preheating water tank in a parallel and staggered manner.
By adopting the technical scheme, the arrangement of the baffle plate enables the cold water added into the preheating water tank to continuously change the direction before entering the secondary water return pipeline, plays a role of turbulent flow and accelerates the fusion of the cold water and the warm water.
Optionally, a flow baffle is arranged between the secondary water return pipelines in the preheating water tank, and the flow baffle is vertically and fixedly connected to the bottom of the preheating water tank.
By adopting the technical scheme, the flow baffle plate plays a turbulent flow role in warm water from the secondary water return pipeline, and the fusion of cold water and warm water is accelerated. The secondary pipeline often can produce some impurity because of reasons such as rust, and the fender flows the board and can produce certain effect of blockking to impurity, makes its deposit in preheating water tank to regularly clear up.
Optionally, an exhaust valve is arranged at the upper part of the preheating water tank.
Through adopting above-mentioned technical scheme, moisturizing pipeline, factors such as expend with heat and contract with cold of water can lead to preheating the water tank internal gas pressure constantly changing, when preheating the water tank internal gas pressure when too high, are unfavorable for moisturizing pipeline moisturizing, and discharge valve can in time balance preheating the water tank internal and external pressure, guarantees the normal operating of moisturizing device.
Optionally, the outer surface of the preheating water tank is provided with a heat insulation material.
By adopting the technical scheme, the heat-insulating material can reduce the heat loss of water in the preheating water tank, and is favorable for keeping the water temperature.
Optionally, a thermometer is arranged on one side of the secondary water return pipeline, which is out of the preheating water tank, and an electric heating plate is arranged at the bottom in the preheating water tank.
By adopting the technical scheme, when the secondary pipe network circulating water is excessively lost and a large amount of water is needed to be supplemented, the situation that the water is not timely supplemented and preheated can occur, the thermometer can help workers to timely find the situation and preheat the supplemented water through the heating plate, and the fluctuation range of the water temperature is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the preheating and water supplementing device supplements water, cold water from the water supply tank is pumped into the preheating tank firstly and is fully fused and preheated with warm water circularly flowing from the secondary water return pipeline, and then the cold water is supplemented into the secondary circulation pipeline, so that supplemented low-temperature water is prevented from directly entering a secondary pipe network, local instantaneous large temperature difference is avoided when circulating water of the secondary pipe network supplements water, and the fluctuation range of water temperature is reduced;
2. the thermometer can help workers to find the situation in time and preheat the supplemented water through the heating plate, so that the fluctuation range of the water temperature is reduced;
3. the moisturizing of moisturizing pipeline, factors such as expend with heat and contract with cold of water can lead to preheating water tank internal gas pressure constantly changing, when preheating water tank internal gas pressure was too high, is unfavorable for moisturizing pipeline moisturizing, and discharge valve can in time balance preheating water tank internal and external pressure, guarantees the normal operating of moisturizing device.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a preheating and water replenishing device of a heat exchanger unit.
FIG. 2 is a schematic diagram of the internal structure of the preheating and water replenishing device of the heat exchanger unit.
Description of reference numerals: 1. a water supply tank; 2. a water replenishing pipeline; 3. a water replenishing pump; 4. preheating a water tank; 5. a secondary water return pipeline; 6. a municipal water supply pipeline; 7. an exhaust valve; 8. a baffle plate; 9. a flow baffle plate; 10. a thermometer; 11. an electrical heating plate; 12. a thermal insulation material; 13. a liquid level alarm.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses heat exchanger group preheats moisturizing device.
Referring to fig. 1 and 2, the preheating and water-replenishing device of the heat exchanger unit includes a water supply tank 1, a water replenishing pipeline 2, a water replenishing pump 3 and a preheating water tank 4, a municipal water supply pipeline 6 is connected to the water supply tank 1, and softened water from the municipal water supply pipeline 6 is temporarily stored in the water supply tank 1. The water supply water tank 1 is connected to 2 one ends of moisturizing pipeline, and the other end inserts preheating water tank 4, installs moisturizing water pump 3 on moisturizing pipeline 2, and moisturizing water pump 3 both ends and moisturizing pipeline 2 flange joint. And a secondary water return pipeline 5 of the community heat exchange unit is connected into the preheating water tank 4 and is connected out from the other end of the preheating water tank 4, and the connected secondary water return pipeline 5 is continuously connected back to a secondary pipeline circulating pipe network.
Referring to fig. 1 and 2, the secondary water return pipe 5 is connected to and from the preheating water tank 4 at a position near the bottom of the side of the preheating water tank 4, and the water supply pipe 2 is connected to the water tank at a position near the top of the side of the preheating water tank 4. The density of cold water is higher than hot water, and the low temperature of moisturizing pipeline 2 output is lower, and the warm water temperature of secondary return water pipe 5 output is higher relatively, and cold water is favorable to accelerating the heat exchange of cold water and warm water at last entering water tank, improves and preheats efficiency. The communication position of the secondary water return pipeline 5 and the preheating water tank 4 is positioned at the lower position of the side surface of the preheating water tank 4, so that more water in the preheating water tank 4 can be supplemented into a secondary circulation pipe network, the water supplementing capacity of the preheating water supplementing device is exerted to the maximum, and the risk that air enters a secondary pipe network due to water shortage is reduced.
Referring to fig. 1 and 2, a liquid level alarm 13 is installed on the inner wall of the preheating water tank 4, and the liquid level alarm 13 is located above the communication part of the secondary water return pipe 5 and the preheating water tank 4. When the liquid level in the preheating water tank 4 drops to the position above the communication position of the secondary water return pipeline 5 and the preheating water tank 4, the liquid level alarm 13 gives an alarm, and the box lifting workers can timely supplement water.
Referring to fig. 1 and 2, baffle plates 8 are parallelly and alternately arranged in the preheating water tank 4 along both sides of the inner wall of the preheating water tank 4 between the water supply pipeline 2 and the secondary water return pipeline 5, and the area of each baffle plate 8 is larger than half of the cross-sectional area of the preheating water tank 4. The water added into the preheating water tank 4 is continuously changed in direction before entering the secondary water return pipeline 5, so that the turbulent flow effect is achieved, and the cold water and the warm water are more fully mixed.
Referring to fig. 1 and 2, a flow baffle 9 is disposed between the secondary water return pipes 5 in the preheating water tank 4, and the flow baffle 9 is vertically and fixedly connected with the preheating water tank 4. The warm water from the secondary water return pipeline 5 is disturbed to accelerate the fusion of the cold water and the warm water. And certain blocking effect is generated on the impurities in the secondary water return pipeline 5, so that the impurities are deposited in the preheating water tank 4.
Referring to fig. 1 and 2, an exhaust valve 7 is installed at the upper part of the preheating water tank 4, and is used for balancing the internal and external pressure of the preheating water tank 4 and ensuring the normal operation of the water replenishing device.
Referring to fig. 1 and 2, a heat insulating material 12 is arranged on the outer surface of the preheating water tank 4, a thermometer 10 is arranged on one side of the secondary water return pipe 5, which is out of the preheating water tank 4, and an electric heating plate 11 is arranged at the bottom in the preheating water tank 4.
When a large amount of water needs to be supplemented due to excessive loss of circulating water of the secondary pipe network, the situation that water is supplemented and preheated untimely may occur, the thermometer 10 can help workers to find the situation in time and preheat the supplemented water through the heating plate, the heat loss of the water in the preheating water tank 4 can be reduced through the heat insulation material 12, the maintenance of the water temperature is facilitated, and the fluctuation range of the water temperature is reduced.
The implementation principle of the preheating and water supplementing device of the heat exchange unit in the embodiment of the application is as follows: the low-temperature softened water from the municipal water supply pipeline 6 firstly enters the water supply tank 1, then the water supplementing pump 3 is started to pump the softened water into the preheating water tank 4 through the water supplementing pipeline 2, two ends of the preheating water tank 4 are both communicated with the secondary water return pipeline 5, a large amount of circulating warm water from the secondary circulating pipeline is stored in the preheating water tank 4, and the low-temperature softened water and the circulating warm water are fully fused in the preheating water tank 4 and then are supplemented into a secondary pipe network through the secondary water return pipeline 5. Through the buffering process of preheating, avoided secondary pipe network circulating water to produce the instantaneous great difference in temperature of local when the moisturizing, reduced the temperature fluctuation range.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. Heat exchanger unit preheats moisturizing device, including water supply tank (1), moisturizing pipeline (2) and moisturizing water pump (3), its characterized in that: still include preheating water tank (4), moisturizing pipeline (2) one end and water supply tank (1) intercommunication, the other end and preheating water tank (4) intercommunication, moisturizing water pump (3) are located moisturizing pipeline (2) department, moisturizing water pump (3) both ends all communicate with moisturizing pipeline (2), water supply tank (1) and municipal water supply pipeline (6) intercommunication, preheating water tank (4) both ends all communicate with heat exchanger unit's secondary return water pipeline (5).
2. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: the secondary water return pipeline (5) is communicated with the position, close to the bottom, of the side face of the preheating water tank (4), and the water supply pipeline (2) is communicated with the position, close to the top, of the side face of the preheating water tank (4).
3. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: and a liquid level alarm (13) is arranged on the inner wall of the preheating water tank (4), and the liquid level alarm (13) is positioned above the communication part of the secondary water return pipeline (5) and the preheating water tank (4).
4. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: a plurality of baffle plates (8) are arranged between the water replenishing pipeline (2) and the secondary water return pipeline (5) in the preheating water tank (4), the area of each baffle plate (8) is larger than half of the cross section area of the preheating water tank (4), and the baffle plates (8) are fixedly connected to two sides of the inner wall of the preheating water tank (4) in a parallel and staggered manner.
5. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: a flow baffle plate (9) is arranged between the secondary water return pipes (5) in the preheating water tank (4), and the flow baffle plate (9) is vertically and fixedly connected to the bottom of the preheating water tank (4).
6. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: an exhaust valve (7) is arranged at the upper part of the preheating water tank (4).
7. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: and a heat insulation material (12) is arranged on the outer surface of the preheating water tank (4).
8. The heat exchanger unit preheating and water replenishing device according to claim 1, characterized in that: one side of the secondary water return pipeline (5) which is out of the preheating water tank (4) is provided with a thermometer (10), and the bottom in the preheating water tank (4) is provided with an electric heating plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222804654.2U CN218480673U (en) | 2022-10-24 | 2022-10-24 | Preheating and water replenishing device of heat exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222804654.2U CN218480673U (en) | 2022-10-24 | 2022-10-24 | Preheating and water replenishing device of heat exchange unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218480673U true CN218480673U (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222804654.2U Active CN218480673U (en) | 2022-10-24 | 2022-10-24 | Preheating and water replenishing device of heat exchange unit |
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| Country | Link |
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| CN (1) | CN218480673U (en) |
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2022
- 2022-10-24 CN CN202222804654.2U patent/CN218480673U/en active Active
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