CN222504011U - Heat recovery type expansion water tank type heat exchanger unit - Google Patents
Heat recovery type expansion water tank type heat exchanger unit Download PDFInfo
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- CN222504011U CN222504011U CN202420428430.2U CN202420428430U CN222504011U CN 222504011 U CN222504011 U CN 222504011U CN 202420428430 U CN202420428430 U CN 202420428430U CN 222504011 U CN222504011 U CN 222504011U
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Abstract
本申请公开了一种热回收型膨胀水箱式换热机组，属于采暖设备领域，用于供热，其包括换热器，换热器的蒸汽入口通过蒸汽阀门组件与外部的蒸汽管路连通，换热器的热水出口经由热水管路与采暖用户管网连通，所述采暖用户管网的回水管路连通膨胀水箱，膨胀水箱通过循环阀门组件、循环管路与换热器的回水口连通；所述换热器的冷凝水通过冷凝水阀门组件、冷凝水管路与膨胀水箱连通，膨胀水箱还连通有补水管及现场存污水设备。本申请能够实现高温热水的重复利用，可极大降低热量的损失及蒸汽的使用量，保持管道内部的压力恒定，有效提高换热效率，保证生产质量的稳定性，降低运行成本。
The present application discloses a heat recovery type expansion water tank type heat exchanger unit, which belongs to the field of heating equipment and is used for heating. It includes a heat exchanger, the steam inlet of the heat exchanger is connected to an external steam pipeline through a steam valve assembly, the hot water outlet of the heat exchanger is connected to a heating user network via a hot water pipeline, the return water pipeline of the heating user network is connected to an expansion water tank, and the expansion water tank is connected to the return water port of the heat exchanger through a circulation valve assembly and a circulation pipeline; the condensed water of the heat exchanger is connected to the expansion water tank through a condensed water valve assembly and a condensed water pipeline, and the expansion water tank is also connected to a water supply pipe and an on-site sewage storage device. The present application can realize the reuse of high-temperature hot water, greatly reduce the loss of heat and the use of steam, keep the pressure inside the pipeline constant, effectively improve the heat exchange efficiency, ensure the stability of production quality, and reduce operating costs.
Description
Technical Field
The application belongs to the field of heating devices, and particularly relates to a heat recovery type expansion water tank type heat exchanger unit.
Background
The prior heating system mainly comprises a plate heat exchanger, an expansion tank, a circulating pump, a control cabinet and the like, and is a high-rise building heat exchange partition heating system disclosed by Chinese patent publication No. CN104848322A, and mainly comprises the plate heat exchanger, the expansion tank, the circulating pump, a direct-connection pressurizing variable frequency pump, the control cabinet, a heating low area and a heating high area, wherein the plate heat exchanger is respectively connected with a primary water supply pipe and a primary water return pipe, the plate heat exchanger is also respectively connected with a low-area heating water supply pipe and a low-area heating water return pipe, the low-area heating water supply pipe and the low-area heating water return pipe are respectively connected with the high-area heating water supply pipe and the high-area heating water return pipe, and the direct-connection pressurizing variable frequency pump is arranged on the high-area heating water supply pipe.
However, because the equipment runs for a long time, the temperature difference between water supply and water outlet of the heat exchange unit formed by the plate heat exchanger, the expansion tank and the like is large, the pressure difference between water inlet and water outlet is large, the problem that heat loss is serious due to overhigh condensed water temperature is not solved, the heat exchange amount of the heat exchange unit is insufficient, the use amount of steam serving as a heat source is increased due to the insufficient heat exchange amount, and further, the running cost is increased.
Disclosure of utility model
The application aims to provide a heat recovery type expansion water tank type heat exchanger unit, which can realize the recycling of high-temperature hot water, greatly reduce the heat loss and the steam usage amount, keep the pressure in a pipeline constant, effectively improve the heat exchange efficiency, ensure the stability of the production quality and reduce the operation cost.
In order to achieve the above purpose, the application is realized by the following technical scheme:
The application discloses a heat recovery type expansion water tank type heat exchanger unit, which comprises a heat exchanger, wherein a steam inlet of the heat exchanger is communicated with an external steam pipeline through a steam valve assembly, a hot water outlet of the heat exchanger is communicated with a heating user pipe network through a hot water pipeline, a water return pipeline of the heating user pipe network is communicated with an expansion water tank, the expansion water tank is communicated with a water return port of the heat exchanger through a circulating valve assembly and a circulating pipeline, condensed water of the heat exchanger is communicated with the expansion water tank through a condensed water valve assembly and a condensed water pipeline, and the expansion water tank is also communicated with a water supplementing pipe and on-site sewage storage equipment.
As one of the preferable technical schemes of the application, the steam valve assembly comprises a first butterfly valve, an electric regulating valve and a second butterfly valve which are sequentially and serially arranged in the flow direction of medium in a steam pipeline, wherein the electric regulating valve is connected with a controller through an electric signal, and a sensor is arranged on a hot water pipeline connected with a heating user pipe network through a heat exchanger.
As one of the preferable technical schemes, the steam pipeline is also provided with a third butterfly valve which is connected with the first butterfly valve, the electric regulating valve and the second butterfly valve in parallel.
As one of the preferable technical schemes of the application, the condensed water valve assembly comprises a first ball valve, a steam trap and a second ball valve which are sequentially connected in series along the flowing direction of medium in a condensed water pipeline.
As one of the preferable technical schemes of the application, the condensed water valve assembly is also provided with a third ball valve which is arranged in parallel with the first ball valve, the steam trap and the second ball valve.
As one of the preferable technical schemes of the application, the circulating valve assembly comprises a fourth butterfly valve, a first silencing check valve, a hot water circulating pump, a second silencing check valve and a fifth butterfly valve which are sequentially arranged in series in the flowing direction of medium in a circulating pipeline.
As one of the preferable technical schemes of the application, the heat exchanger is a plate heat exchanger.
Compared with the prior art, the application has the beneficial effects that:
The expansion water tank can send soft water and steam which are sent into the expansion water tank through the water supplementing pipe into the heat exchanger together with steam condensate water generated after the steam exchanges heat from the heat exchanger and recovery water generated by the heating user pipe network, the water is heated for the second time through the heat exchanger, the heated hot water is used for heating in occasions such as houses and industrial production, and the return water generated by the heating user pipe network enters the expansion water tank again for heat source recovery.
The electric control valve, the hot water circulating pump, the controller and the like are all connected with the electric control cabinet through electric signals, and full-automatic control is realized through the electric control cabinet.
The application can realize the recycling of high-temperature hot water, greatly reduce the heat loss and the steam consumption required by heating, keep the pressure in the pipeline constant in the heating process, effectively improve the heat exchange efficiency, ensure the stability of the hot water production quality and help reduce the running cost of equipment.
Drawings
Fig. 1 is a schematic diagram of the system architecture of the present application.
The device comprises a heat exchanger, a first butterfly valve, an electric regulating valve, a second butterfly valve, a third butterfly valve, a first ball valve, a steam trap, a second ball valve, a third ball valve, a 10 expansion water tank, a fourth butterfly valve, a 12 first silencing check valve, a 13 hot water circulating pump, a 14 second silencing check valve, a 15 fifth butterfly valve, a 16, a controller, a 17, a sensor, a 18 and a heating user pipe network, wherein the heat exchanger, the first butterfly valve, the 3 electric regulating valve, the 4 second butterfly valve, the 5 third butterfly valve, the 6 first ball valve, the 7 steam trap, the 8 second ball valve, the 9 third ball valve, the 10 expansion water tank, the 11 fourth butterfly valve, the 12 first silencing check valve, the 13 hot water circulating pump, the 14 second silencing check valve and the 15 fifth butterfly valve.
Detailed Description
The technical scheme of the application is further described and illustrated below with reference to the accompanying drawings and the embodiments.
Example 1
As shown in fig. 1, a heat recovery expansion tank type heat exchanger unit comprises a heat exchanger 1, wherein a steam inlet of the heat exchanger 1 is communicated with a steam pipeline through a steam valve assembly, the steam valve assembly comprises a first butterfly valve 2, an electric regulating valve 3 and a second butterfly valve 4 which are sequentially connected in series along the steam movement direction, the electric regulating valve 3 is connected with a controller 16 through an electric signal, the controller 16 is further connected with a sensor 17 through an electric signal, and the sensor 17 is positioned on a hot water pipeline of a hot water outlet of the heat exchanger 1. The controller 16 is a single-chip microcomputer or a microcomputer, and is used for receiving and processing the electric signal from the sensor 17 and feeding back to the electric regulating valve 3. The sensor 17 is a temperature sensor.
The heat exchanger 1 is communicated with an inlet of a heating user pipe network 18 through a hot water pipeline, and a water return port of the heating user pipe network 18 is communicated with the expansion tank 10 through a pipeline. The expansion tank 10 communicates with the heat exchanger 1 via a circulation line with a circulation valve assembly.
The circulating valve assembly comprises a fourth butterfly valve 11, a first silencing check valve 12, a hot water circulating pump 13, a second silencing check valve 14 and a fifth butterfly valve 15 which are sequentially connected in series along the medium flowing direction in a circulating pipeline.
The heat exchanger 1 generates condensed water in the heat exchange process, and the condensed water is communicated with the expansion tank 10 through a condensed water pipeline with a condensed water valve assembly. The condensate water valve assembly comprises a first ball valve 6, a steam trap 7 and a second ball valve 8 which are sequentially arranged along the flowing direction of medium in a condensate water pipeline.
The expansion tank 10 is also communicated with a water supplementing pipe and on-site sewage storage equipment.
Example 2
On the basis of the embodiment, with continued reference to fig. 1, a heat recovery expansion tank type heat exchanger unit comprises a third butterfly valve 5, wherein the third butterfly valve 5, the first butterfly valve 2, the electric regulating valve 3 and the second butterfly valve 4 are all arranged in parallel, namely, the inlet side of the third butterfly valve 5 is positioned at the inlet side of the first butterfly valve 2, and the outlet side of the third butterfly valve 5 is positioned at the outlet side of the second butterfly valve 4. The novel water heater further comprises a third ball valve 9, wherein the third ball valve 9, the first ball valve 6, the steam trap 7 and the second ball valve 8 are all arranged in parallel, namely, an inlet of the third ball valve 9 is positioned on the inlet side of the first ball valve 6, and an outlet of the third ball valve 9 is positioned on the outlet side of the second ball valve 8. The structure and connection relationship of the rest are the same as those described in any one of the foregoing embodiments, and are not repeated here to avoid complicated text.
On the basis of the above embodiments, the technical features involved therein and the functions and roles that the technical features play in the technical solution are described in detail using the following paragraphs so as to help those skilled in the art to fully understand the technical solution and reproduce it.
The third butterfly valve 5 in the application can ensure continuous operation of the equipment under emergency working conditions, and the third ball valve 9 can be communicated with the expansion water tank 10 under emergency working conditions.
For example, the temperature of hot water sent into the heating user pipe network 18 through the hot water pipeline is 90 ℃, the heating user is heated by circulating hot water in the heating user pipe network 18, after passing through the heating user pipe network 18, the temperature of backwater of the backwater pipeline is reduced to about 70 ℃, backwater at the temperature enters the expansion water tank 10 and is mixed with the soft water replenished in the expansion water tank 10 and the condensate water generated by the heat exchanger 1, so that the recycling of a heat source is realized. The temperature difference of 20 ℃ between the heat exchanger 1 and the heating user pipe network 18 realizes the ladder utilization of high-temperature media, meets the heating hot water requirement of the temperature required by production, reduces the loss of heat and steam quantity, and is beneficial to saving the running cost.
In the application, the controller 16 can be electrically connected with a sensor 17 on the hot water pipeline, and the adjustment of the steam feeding amount and the temperature of the heat exchanger can be further realized through the electric adjusting valve 3.
In the application, a liquid level meter is arranged in the expansion water tank 10, the water level in the expansion water tank 10 is measured through the liquid level meter, the liquid level meter is connected with a corresponding controller in a control cabinet through an electric signal, the controller is connected with an electromagnetic valve positioned on a water supplementing pipe through the electric signal, and the water supplementing pipe is opened and closed through the electromagnetic valve to realize the water supplementing operation of the water supplementing pipe into the expansion water tank 10.
Finally, although the description has been described in terms of embodiments, not every embodiment is intended to include only a single embodiment, and such description is for clarity only, as one skilled in the art will recognize that the embodiments of the disclosure may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The heat recovery type expansion water tank type heat exchanger unit comprises a heat exchanger (1), wherein a steam inlet of the heat exchanger (1) is communicated with an external steam pipeline through a steam valve assembly, a hot water outlet of the heat exchanger (1) is communicated with a heating user pipe network (18) through a hot water pipeline, and the heat recovery type expansion water tank type heat exchanger unit is characterized in that a water return pipeline of the heating user pipe network (18) is communicated with an expansion water tank (10), the expansion water tank (10) is communicated with a water return port of the heat exchanger (1) through a circulation valve assembly and a circulation pipeline, condensed water of the heat exchanger (1) is communicated with the expansion water tank (10) through a condensed water valve assembly and a condensed water pipeline, and the expansion water tank (10) is also communicated with a water supplementing pipe and on-site sewage storage equipment.
2. The heat recovery expansion tank type heat exchanger unit according to claim 1, wherein the steam valve assembly comprises a first butterfly valve (2), an electric regulating valve (3) and a second butterfly valve (4) which are sequentially arranged in series in the flow direction of medium in a steam pipeline, the electric regulating valve (3) is connected with a controller (16) through an electric signal, a sensor (17) is connected, and the sensor (17) is arranged on a hot water pipeline which is connected with a heating user pipe network (18) through the heat exchanger (1).
3. The heat recovery expansion tank type heat exchanger unit according to claim 2, wherein a third butterfly valve (5) connected with the first butterfly valve (2), the electric control valve (3) and the second butterfly valve (4) in parallel is further arranged on the steam pipeline.
4. The heat recovery expansion tank type heat exchanger unit according to claim 1, wherein the condensed water valve assembly comprises a first ball valve (6), a steam trap (7) and a second ball valve (8) which are sequentially connected in series along the flow direction of medium in the condensed water pipeline.
5. A heat recovery expansion tank heat exchanger package as recited in claim 4, wherein said condensate valve assembly further comprises a third ball valve (9) disposed in parallel with the first ball valve (6), steam trap (7), and second ball valve (8).
6. The heat recovery expansion tank type heat exchanger unit according to claim 1, wherein the circulating valve assembly comprises a fourth butterfly valve (11), a first silencing check valve (12), a hot water circulating pump (13), a second silencing check valve (14) and a fifth butterfly valve (15) which are sequentially arranged in series in the medium flowing direction in the circulating pipeline.
7. A heat recovery expansion tank heat exchanger set according to any one of claims 1 to 6, characterized in that the heat exchanger (1) is a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420428430.2U CN222504011U (en) | 2024-03-06 | 2024-03-06 | Heat recovery type expansion water tank type heat exchanger unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420428430.2U CN222504011U (en) | 2024-03-06 | 2024-03-06 | Heat recovery type expansion water tank type heat exchanger unit |
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| Publication Number | Publication Date |
|---|---|
| CN222504011U true CN222504011U (en) | 2025-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420428430.2U Active CN222504011U (en) | 2024-03-06 | 2024-03-06 | Heat recovery type expansion water tank type heat exchanger unit |
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| Country | Link |
|---|---|
| CN (1) | CN222504011U (en) |
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- 2024-03-06 CN CN202420428430.2U patent/CN222504011U/en active Active
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