A negative pressure steam heating system for office buildings
By adopting a negative pressure steam system in heating equipment, using its high enthalpy and latent heat, the problems of low heat transfer coefficient and difficult temperature control are solved, and efficient and safe heating effects are achieved.
Patent Information
- Application Number
- CN202420765229.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The heat transfer coefficient of existing heating equipment is low, the heat transfer temperature is not easy to control, and it is easy to cause high-temperature scalding.
Negative pressure steam is used as heating medium, and through a system composed of heat exchanger, condensate recoverer and water tank, the high enthalpy and latent heat of negative pressure steam are used to achieve efficient heat transfer control.
It achieves a higher precision control of the steam temperature than using hot water heating, with a high heat transfer coefficient, reducing the heat transfer area, and the heating temperature can be controlled at 65℃ to avoid high-temperature scalding and high safety in use.
Smart Images
Figure CN222732896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, in particular to a heating system using negative pressure steam for office buildings. Background Art
[0002] The heating system refers to a system that inputs a certain amount of heat into a building to maintain the required temperature inside the building and meet the temperature requirements of living and various working environments. In general, the heating system can be divided into hot water radiator heating system, steam radiator heating system, radiation heating system, and hot air heating system. In these large classification systems, each system can be divided into several forms, and each form has its own different adaptation places. Although some office building heating equipment currently used can meet the heating needs, it still has certain defects in actual use;
[0003] For example, the existing heating equipment has a low heat transfer coefficient, the heat transfer temperature is difficult to control, and the heat transfer temperature is often relatively high, which can easily cause high temperature burns and needs to be improved. Therefore, a negative pressure steam heating system for office buildings is now proposed. Utility Model Content
[0004] In order to improve the problem that the heat transfer coefficient of heating equipment is low, the heat transfer temperature is difficult to control, the heat transfer temperature is often relatively high, and high temperature burns are easily caused, the utility model provides a negative pressure steam heating system for office buildings.
[0005] The utility model provides a heating system using negative pressure steam for office buildings, which adopts the following technical solutions:
[0006] A negative pressure steam heating system for office buildings, comprising a heat exchanger, a condensate recovery device and a water tank, wherein a conveying mechanism is provided on the surface of the water tank, a negative pressure steam air inlet pipe is connected to the bottom of the front side of the heat exchanger, and an air outlet pipe is connected to the top of the back side of the heat exchanger;
[0007] The conveying mechanism includes a water pump and a circulating pump, one side of the water pump is connected to a pumping pipe, the end of the pumping pipe away from the water pump is connected to one side of the water tank, the side of the water pump away from the pumping pipe is connected to a drain pipe, one side of the circulating pump is connected to a first connecting pipe, the end of the first connecting pipe away from the circulating pump is connected to the bottom of the back side of the heat exchanger, the side of the circulating pump away from the first connecting pipe is connected to a second connecting pipe, and the end of the drain pipe away from the water pump is connected to the surface of the second connecting pipe.
[0008] By adopting the above technical solution, it is possible to provide heating to the interior of an office building, and at the same time, heating can be carried out by using negative pressure steam. The steam temperature can be quickly controlled by adjusting the pressure, thereby achieving more precise control than that achieved by using hot water for heating. Since negative pressure steam has a high enthalpy value and contains a large amount of latent heat, the heat transfer coefficient is high, reducing the required heat transfer area. At the same time, the temperature of the heating negative pressure steam can be controlled at 65°C, which will not cause high temperature burns and is highly safe to use.
[0009] Optionally, the conveying mechanism includes a water pump and a circulating pump, one side of the water pump is connected to a pumping pipe, the end of the pumping pipe away from the water pump is connected to one side of a water tank, the side of the water pump away from the pumping pipe is connected to a drain pipe, one side of the circulating pump is connected to a first connecting pipe, the end of the first connecting pipe away from the circulating pump is connected to the bottom of the back side of the heat exchanger, the side of the circulating pump away from the first connecting pipe is connected to a second connecting pipe, and the end of the drain pipe away from the water pump is connected to the surface of the second connecting pipe.
[0010] By adopting the above technical solution, the condensed water in the heating pipes in the office building can be recycled.
[0011] Optionally, one side of the condensate recovery device is connected to a recovery pipe, and one end of the recovery pipe away from the condensate recovery device is connected to the top of the back side of the heat exchanger.
[0012] By adopting the above technical solution, the condensed water inside the heat exchanger can be easily recovered.
[0013] Optionally, a second pressure sensor and a second temperature sensor are disposed on the surface of the air outlet pipe, wherein the second pressure sensor is disposed at an end close to the heat exchanger, and the second temperature sensor is disposed at an end away from the heat exchanger.
[0014] By adopting the above technical solution, the pressure and temperature inside the air outlet pipe can be monitored.
[0015] Optionally, a third pressure sensor and a third temperature sensor are provided on the surface of the second connecting pipe, the third pressure sensor is provided at an end close to the circulation pump, and the third temperature sensor is provided at an end away from the circulation pump.
[0016] By adopting the above technical solution, the pressure and temperature inside the second connecting pipe can be monitored.
[0017] Optionally, the top of the water tank is connected to a water injection pipe, and a sealing cover is provided at the pipe mouth of the water injection pipe.
[0018] By adopting the above technical solution, it is convenient to fill water into the water tank.
[0019] Optionally, the bottom of the back side of the water tank is connected to a water outlet pipe, and a valve is provided at the pipe mouth of the water outlet pipe.
[0020] By adopting the above technical solution, the water in the water tank can be easily drained and replaced.
[0021] Optionally, pads are fixedly connected to the four corners of the bottom of the heat exchanger, and the material of the pads is rubber.
[0022] By adopting the above technical solution, the heat exchanger can be supported.
[0023] In summary, the utility model has the following beneficial effects:
[0024] The utility model can provide heating to the interior of an office building by arranging a heat exchanger, a negative pressure steam inlet pipe, an outlet pipe, a flow sensor, a first pressure sensor, a first temperature sensor and a regulating valve. At the same time, heating is carried out by means of negative pressure steam. The steam temperature can be quickly controlled by adjusting the pressure, thereby achieving more precise control than that achieved by using hot water for heating. Since the negative pressure steam has a high enthalpy value and contains a large amount of latent heat, the heat transfer coefficient is high, and the required heat transfer area is reduced. At the same time, the temperature of the heating negative pressure steam can be controlled at 65°C, which will not cause high temperature burns and has high safety in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the structure of the utility model;
[0026] Figure 2 It is a cross-sectional view of the structure of the utility model;
[0027] Figure 3 This is a schematic diagram of the heat exchanger connection of the utility model;
[0028] Figure 4 For this utility model Figure 1 A partial enlarged view of the middle A;
[0029] Figure 5 This is a schematic diagram of the process connection of the utility model.
[0030] In the figure: 1. heat exchanger; 2. condensate recovery device; 3. water tank; 4. conveying mechanism; 401. water pump; 402. circulation pump; 403. suction pipe; 404. drainage pipe; 405. first connecting pipe; 406. second connecting pipe; 5. negative pressure steam inlet pipe; 6. recovery pipe; 7. flow sensor; 8. first pressure sensor; 9. first temperature sensor; 10. regulating valve; 11. second pressure sensor; 12. second temperature sensor; 13. third pressure sensor; 14. third temperature sensor; 15. outlet pipe. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example
[0032] Please refer to Figure 1-5 A negative pressure steam heating system for office buildings includes a heat exchanger 1, a condensate recovery device 2 and a water tank 3. A conveying mechanism 4 is provided on the surface of the water tank 3. The bottom of the front side of the heat exchanger 1 is connected to a negative pressure steam inlet pipe 5, and the top of the back side of the heat exchanger 1 is connected to an outlet pipe 15.
[0033] A flow sensor 7, a first pressure sensor 8, a first temperature sensor 9 and a regulating valve 10 are arranged on the surface of the negative pressure steam inlet pipe 5. The regulating valve 10 is arranged at one end close to the heat exchanger 1, the flow sensor 7 is arranged at the end away from the heat exchanger 1, and the first pressure sensor 8 and the first temperature sensor 9 are arranged between the flow sensor 7 and the regulating valve 10.
[0034] As a technical optimization solution of the present invention, further, one side of the condensate recovery device 2 is connected with a recovery pipe 6 , and one end of the recovery pipe 6 away from the condensate recovery device 2 is connected with the top of the back side of the heat exchanger 1 .
[0035] As a technical optimization solution of the utility model, further, a second pressure sensor 11 and a second temperature sensor 12 are arranged on the surface of the outlet pipe 15 , the second pressure sensor 11 is arranged at one end close to the heat exchanger 1 , and the second temperature sensor 12 is arranged at one end away from the heat exchanger 1 .
[0036] As a technical optimization solution of the present invention, further, pads are fixedly connected to the four corners of the bottom of the heat exchanger 1, and the material of the pads is rubber.
[0037] In this embodiment: by providing a heat exchanger 1, a negative pressure steam inlet pipe 5, an outlet pipe 15, a flow sensor 7, a first pressure sensor 8, a first temperature sensor 9 and a regulating valve 10, heating can be provided to the interior of the office building. At the same time, heating is performed by using negative pressure steam. The steam temperature can be quickly controlled by adjusting the pressure, thereby achieving more precise control than that achieved by heating with hot water. Since the negative pressure steam has a high enthalpy value and contains a large amount of latent heat, the heat transfer coefficient is high, reducing the required heat transfer area. At the same time, the heating negative pressure steam temperature can be controlled at 65°C, which will not cause high temperature burns and has high safety in use. By providing a recovery pipe 6, the condensed water inside the heat exchanger 1 can be conveniently transported to the condensed water recovery device 2 for collection. By providing a second pressure sensor 11 and a second temperature sensor 12, the steam pressure and temperature in the outlet pipe 15 can be monitored. By providing a pad, the heat exchanger 1 can be conveniently supported. Example
[0038] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 The conveying mechanism 4 includes a water pump 401 and a circulating pump 402. One side of the water pump 401 is connected to a pumping pipe 403. The end of the pumping pipe 403 away from the water pump 401 is connected to one side of the water tank 3. The side of the water pump 401 away from the pumping pipe 403 is connected to a drain pipe 404. One side of the circulating pump 402 is connected to a first connecting pipe 405. The end of the first connecting pipe 405 away from the circulating pump 402 is connected to the bottom of the back side of the heat exchanger 1. The side of the circulating pump 402 away from the first connecting pipe 405 is connected to a second connecting pipe 406. The end of the drain pipe 404 away from the water pump 401 is connected to the surface of the second connecting pipe 406.
[0039] As a technical optimization solution of the utility model, further, a third pressure sensor 13 and a third temperature sensor 14 are arranged on the surface of the second connecting pipe 406. The third pressure sensor 13 is arranged at one end close to the circulation pump 402, and the third temperature sensor 14 is arranged at one end away from the circulation pump 402.
[0040] As a technical optimization solution of the utility model, further, the top of the water tank 3 is connected to a water injection pipe, and a sealing cover is provided at the pipe mouth of the water injection pipe.
[0041] As a technical optimization solution of the utility model, further, the bottom of the back side of the water tank 3 is connected with a water outlet pipe, and a valve is provided at the pipe mouth of the water outlet pipe.
[0042] In the present embodiment: by providing a circulation pump 402, a first connecting pipe 405 and a second connecting pipe 406, the condensed water inside the heating pipes in the office building can be conveniently recycled and utilized to improve the utilization rate; by providing a water pump 401, a pumping pipe 403 and a drain pipe 404, the water in the water tank 3 can be transported to the inside of the heat exchanger 1 for use; by providing a third pressure sensor 13 and a third temperature sensor 14, the pressure and temperature inside the second connecting pipe 406 can be monitored; by providing a water filling pipe and a sealing cover, water can be conveniently filled into the water tank 3; by providing a water outlet pipe and a valve, the water in the water tank 3 can be conveniently discharged and replaced.
[0043] The implementation principle of the utility model is as follows: when in use, the outlet pipe 15 is connected to the heating pipe in the office building, and the second connecting pipe 406 is connected to the other end of the heating pipe in the office building. An antenna is installed in the office building. When heating is needed for the office building, the negative pressure steam is transported to the heat exchanger 1 through the negative pressure steam inlet pipe 5, and then transported to the office building through the outlet pipe 15 for heating. Then, the condensed water in the heating pipe is recycled through the circulation pump 402, the first connecting pipe 405 and the second connecting pipe 406. At the same time, the flow sensor 7 and the first pressure sensor 406 are controlled by the external controller. The force sensor 8, the first temperature sensor 9, the regulating valve 10, the second pressure sensor 11, the second temperature sensor 12, etc. are controlled so that they can monitor the pressure and temperature in the negative pressure steam inlet pipe 5, the outlet pipe 15 and the second connecting pipe 406 in real time. At the same time, the steam temperature can be quickly controlled by adjusting the pressure, thereby achieving higher precision control than that achieved by using hot water heating. Since the negative pressure steam has a high enthalpy value and contains a large amount of latent heat, the heat transfer coefficient is high, which reduces the required heat transfer area. At the same time, the heating negative pressure steam temperature can be controlled at 65°C, which will not cause high temperature burns and is highly safe to use.
[0044] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A negative pressure steam heating system for office buildings, comprising a heat exchanger (1), a condensate recovery device (2) and a water tank (3), characterized in that: The surface of the water tank (3) is provided with a conveying mechanism (4); the bottom of the front side of the heat exchanger (1) is connected to a negative pressure steam inlet pipe (5); and the top of the back side of the heat exchanger (1) is connected to an outlet pipe (15); A flow sensor (7), a first pressure sensor (8), a first temperature sensor (9) and a regulating valve (10) are arranged on the surface of the negative pressure steam inlet pipe (5); the regulating valve (10) is arranged at an end close to the heat exchanger (1); the flow sensor (7) is arranged at an end far from the heat exchanger (1); and the first pressure sensor (8) and the first temperature sensor (9) are arranged between the flow sensor (7) and the regulating valve (10).
2. A negative pressure steam heating system for office buildings according to claim 1, characterized in that: The conveying mechanism (4) comprises a water pump (401) and a circulation pump (402); one side of the water pump (401) is connected to a water pumping pipe (403); one end of the water pumping pipe (403) away from the water pump (401) is connected to one side of the water tank (3); one side of the water pump (401) away from the water pumping pipe (403) is connected to a drainage pipe (404); one side of the circulation pump (402) is connected to a first connecting pipe (405); one end of the first connecting pipe (405) away from the circulation pump (402) is connected to the bottom of the back side of the heat exchanger (1); one side of the circulation pump (402) away from the first connecting pipe (405) is connected to a second connecting pipe (406); one end of the drainage pipe (404) away from the water pump (401) is connected to the surface of the second connecting pipe (406).
3. The negative pressure steam heating system for office buildings according to claim 1 is characterized in that: One side of the condensate recovery device (2) is connected to a recovery pipe (6), and one end of the recovery pipe (6) away from the condensate recovery device (2) is connected to the top of the back side of the heat exchanger (1).
4. The negative pressure steam heating system for office buildings according to claim 1 is characterized in that: A second pressure sensor (11) and a second temperature sensor (12) are arranged on the surface of the air outlet pipe (15); the second pressure sensor (11) is arranged at an end close to the heat exchanger (1), and the second temperature sensor (12) is arranged at an end far from the heat exchanger (1).
5. The negative pressure steam heating system for office buildings according to claim 2 is characterized in that: A third pressure sensor (13) and a third temperature sensor (14) are arranged on the surface of the second connecting pipe (406); the third pressure sensor (13) is arranged at an end close to the circulation pump (402), and the third temperature sensor (14) is arranged at an end far from the circulation pump (402).
6. The negative pressure steam heating system for office buildings according to claim 1 is characterized in that: The top of the water tank (3) is connected to a water injection pipe, and a sealing cover is provided at the pipe opening of the water injection pipe.
7. The negative pressure steam heating system for office buildings according to claim 1 is characterized in that: The bottom of the back side of the water tank (3) is connected to a water outlet pipe, and a valve is arranged at the pipe mouth of the water outlet pipe.
8. The negative pressure steam heating system for office buildings according to claim 1 is characterized in that: The four corners of the bottom of the heat exchanger (1) are fixedly connected with cushion blocks, and the material of the cushion blocks is rubber.