Temperature and pressure reducing device of high-back-pressure heat supply unit
By designing a high-back pressure heating unit temperature reduction and pressure reduction device including a pressure reducing regulating valve, a pressure reducing pipe, a temperature reducing box and a temperature reduction component, the problem of poor temperature reduction effect of high-temperature steam is solved, effective regulation of steam pressure and temperature is achieved, and the efficiency and stability of the heating system are improved.
Patent Information
- Application Number
- CN202421888723.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The high-back pressure heating unit has poor temperature reduction effect due to insufficient mixing of the temperature reduction medium and steam or the low heat exchange efficiency of the temperature reduction equipment.
A device including a pressure reducing regulating valve, a pressure reducing pipe, a temperature reducing box and a temperature reducing pipe is designed. The steam pressure is adjusted through the pressure reducing valve, and the pressure reducing pipe guides the steam to the temperature reducing box. The temperature reducing components in the temperature reducing box (such as inclined temperature reducing plates and shower heads) can achieve effective cooling of steam.
The device effectively adjusts the steam pressure and temperature to ensure that the steam meets the pressure and temperature requirements during the transportation process, improving the efficiency and stability of the heating system.
Smart Images
Figure CN222950842U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high back pressure heating units, and specifically to a temperature and pressure reduction device for high back pressure heating units. Background Art
[0002] The high back pressure heating unit is an important equipment in the cogeneration system. It can directly convert the exhaust steam originally leading to the condenser into steam for heating by increasing the back pressure of the unit, so as to achieve efficient utilization of thermal energy. The steam generated by the high back pressure heating unit often has a higher temperature and pressure, while the steam parameters (such as temperature and pressure) that the actual user may need do not match the steam parameters directly generated by the unit. In order to ensure that the steam can be safely and efficiently used for various industrial production and civil heating, the steam generated by the high back pressure heating unit needs to be cooled and decompressed to meet the actual needs of users.
[0003] The existing devices have some disadvantages during use. For example, the traditional high back pressure heating unit has a poor cooling effect on high temperature steam due to insufficient mixing of the cooling medium (such as water) and steam, or the heat exchange efficiency of the cooling equipment is not high. The overall structure of the cooling and pressure reducing device is relatively complex, and the operation process is extremely cumbersome, which increases the labor intensity of the operators and brings great inconvenience to the cooling and pressure reducing work of the high temperature fluid of the heating system. Utility Model Content
[0004] The purpose of the utility model is to provide a high back pressure heating unit cooling and pressure reducing device to solve the problem that the high back pressure heating unit has poor cooling effect of high temperature steam due to insufficient mixing of cooling medium (such as water) and steam, or low heat exchange efficiency of cooling equipment.
[0005] The utility model provides the following technical solution: a temperature and pressure reduction device for a high back-pressure heating unit, comprising a pressure reducing regulating valve, an air inlet end of the pressure reducing regulating valve is fixedly connected to an air inlet pipe, an air outlet end of the pressure reducing regulating valve is fixedly connected to a pressure reducing pipe, an air outlet end of the pressure reducing pipe is fixedly connected to a temperature reducing box, a side of the temperature reducing box away from the pressure reducing pipe is fixedly connected to a temperature reducing pipe, the pressure reducing pipe and the temperature reducing pipe are both connected to the interior of the temperature reducing box, and a temperature reducing component for cooling steam is provided on the temperature reducing box.
[0006] As a preferred embodiment of the above technical solution, the cooling component includes a plurality of cooling plates fixed in an array on the inner side of the cooling box, the plurality of cooling plates are in an inclined state, a plurality of air holes are opened on the plurality of cooling plates, a spray head is arranged on the top of the cooling box, a water pipe is fixedly connected to the top of the spray head, a water pump is fixedly installed on the top of the water pipe, and a water supply pipe is connected to the water inlet end of the water pump.
[0007] As a preferred embodiment of the above technical solution, a plurality of heat sinks are fixed in an array on the outer walls on two opposite sides of the water conduit.
[0008] As a preferred embodiment of the above technical solution, a drain pipe is fixedly connected to the bottom end of the desuperheater, the top end of the drain pipe is flush with the bottom wall of the desuperheater, and a control water valve is fixedly installed on the drain pipe.
[0009] As a preferred embodiment of the above technical solution, water guide blocks are symmetrically arranged on both sides of the inner bottom wall of the cooling box, the bottom ends of the water guide blocks are fixedly connected to the inner bottom wall of the cooling box, the cross-section of the water guide blocks is a right-angled triangle structure, and the water inlet of the drain pipe is located between the two water guide blocks.
[0010] As a preferred embodiment of the above technical solution, a pressure gauge and a thermometer are fixedly installed on the lower end surface of the cooling tube, and the detection ends of the pressure gauge and the thermometer extend to the inner side of the cooling tube. The pressure gauge and the thermometer are both connected to the external controller by signal.
[0011] As a preferred embodiment of the above technical solution, the lower end surfaces of the air intake pipe and the temperature reduction pipe are both provided with support frames, the bottom end of the pressure reducing regulating valve is provided with a support frustum, and the support frame and the support frustum are both fixed on the ground.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, the pressure reducing regulating valve is responsible for regulating the steam pressure entering the system. By controlling the opening of the pressure reducing regulating valve, the high-pressure steam can be effectively reduced to the required pressure level, and then the steam is guided to the cooling box through the pressure reducing pipe, the steam temperature is adjusted by the cooling box, and then the cooled steam is output through the cooling pipe. The high back pressure heating unit cooling and pressure reducing device realizes pressure regulation through the pressure reducing regulating valve, and realizes steam temperature regulation through the cooling box and its built-in cooling component. This design ensures that the steam can meet the pressure requirements and maintain a suitable temperature during the transportation process, thereby improving the efficiency and stability of the heating system. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of a temperature and pressure reduction device for a high back pressure heating unit;
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the cooling component;
[0016] Figure 3 It is a schematic diagram of the enlarged structure of the cooling plate;
[0017] Figure 4 It is a front view structural schematic diagram of a temperature and pressure reduction device for a high back pressure heating unit.
[0018] In the figure: 10, pressure reducing regulating valve; 11, air inlet pipe; 12, pressure reducing pipe; 13, cooling box; 14, cooling pipe; 15, support frame; 16, supporting round table; 20, cooling plate; 21, air hole; 22, sprinkler head; 23, water guide pipe; 24, water pump; 25, water pipe; 26, heat sink; 30, drain pipe; 31, water control valve; 40, water guide block; 50, pressure gauge; 51, thermometer. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0020] Example 1
[0021] like Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a high back pressure heating unit temperature reduction and pressure reduction device, including a pressure reducing regulating valve 10, the air inlet end of the pressure reducing regulating valve 10 is fixedly connected to the air inlet pipe 11, the air outlet end of the pressure reducing regulating valve 10 is fixedly connected to the pressure reducing pipe 12, the air outlet end of the pressure reducing pipe 12 is fixedly connected to a temperature reducing box 13, the side of the temperature reducing box 13 away from the pressure reducing pipe 12 is fixedly connected to a temperature reducing pipe 14, the pressure reducing pipe 12 and the temperature reducing pipe 14 are both connected to the inside of the temperature reducing box 13, and the temperature reducing box 13 is provided with a temperature reducing component for cooling the steam. In the specific use process, the pressure reducing regulating valve 10 is responsible for regulating the steam entering the system. Steam pressure can effectively reduce high-pressure steam to the required pressure level by controlling the opening of the pressure reducing regulating valve 10, and then guide the steam to the cooling box 13 through the pressure reducing pipe 12, adjust the steam temperature through the cooling box 13, and then output the cooled steam through the cooling pipe 14. The high back pressure heating unit temperature reduction and pressure reduction device realizes pressure regulation through the pressure reducing regulating valve 10, and realizes steam temperature regulation through the cooling box 13 and its built-in cooling components. This design ensures that the steam can meet the pressure requirements and maintain a suitable temperature during the transportation process, thereby improving the efficiency and stability of the heating system.
[0022] As an implementation method in this embodiment, Figure 2 and Figure 3As shown, the cooling assembly includes a plurality of cooling plates 20 fixed in an array to the inner side of the cooling box 13, the plurality of cooling plates 20 are all in an inclined state, a plurality of air holes 21 are opened on the plurality of cooling plates 20, a spray head 22 is arranged at the top of the cooling box 13, a water pipe 23 is fixedly connected to the top of the spray head 22, a water pump 24 is fixedly installed at the top of the water pipe 23, and a water inlet end of the water pump 24 is connected to a water pipe 25. In the specific use process, when high-pressure steam enters the cooling box 13 through the pressure reducing regulating valve 10, the water pump 24 starts to work, and water is sent to the water pump 24 through the water pipe 25 and sent to the spray head 22 after pressurization, and the spray head 22 sprays the water evenly. The spray water is sprinkled into the cooling box 13. The multiple cooling plates 20 provided help to increase the contact area between the steam and the cooling plates 20, thereby improving the heat exchange efficiency. The multiple air holes 21 opened on the cooling plates 20 are used for the steam to pass through and exchange heat with the cooling plates 20 during the passage. These perforations may also promote the distribution and retention of the spray water on the cooling plates 20, thereby increasing the interaction between water and steam. The cooling plates 20 are all set to an inclined state to guide the steam to form a specific flow path in the cooling box 13, promote the full mixing and contact between the steam, the cooling plates 20 and the spray water, and further improve the cooling effect.
[0023] As an implementation method in this embodiment, Figure 1 As shown, a plurality of heat sinks 26 are fixed in an array on the outer walls on both sides of the opposite sides of the water pipe 23. The heat sinks 26 improve the heat transfer efficiency by increasing the heat dissipation area of the outer surface of the water pipe 23. When water flows in the water pipe 23, the heat generated by the steam can be quickly dissipated to the surrounding environment through the heat sinks 26, thereby maintaining the stability of the water temperature in the water pipe 23 and ensuring the continuity and consistency of the spraying effect.
[0024] As an implementation method in this embodiment, Figure 2 As shown, a drain pipe 30 is fixedly connected to the bottom of the cooling box 13, and the top of the drain pipe 30 is flush with the bottom wall of the cooling box 13. A control water valve 31 is fixedly installed on the drain pipe 30. During the cooling process, the water sprayed by the sprinkler head 22 will accumulate at the bottom of the cooling box 13 after heat exchange with the steam. The existence of the drain pipe 30 enables the accumulated water to be discharged in an orderly manner to avoid adverse effects on the subsequent steam flow and cooling effect. The control water valve 31 is responsible for adjusting the water flow size of the drain pipe 30, and can even realize switch control. By adjusting the opening of the water valve, the water level and drainage speed in the cooling box 13 can be accurately controlled to meet different working conditions.
[0025] As an implementation method in this embodiment, Figure 2As shown, water guide blocks 40 are symmetrically arranged on both sides of the inner bottom wall of the cooling box 13, the bottom ends of the water guide blocks 40 are fixedly connected to the inner bottom wall of the cooling box 13, the cross-section of the water guide blocks 40 is a right-angled triangle structure, and the water inlet of the drain pipe 30 is located between the two water guide blocks 40. Water is discharged through the arranged water guide blocks 40, thereby avoiding water accumulation on the inner bottom wall of the cooling box 13.
[0026] As an implementation method in this embodiment, Figure 1 As shown, a pressure gauge 50 and a thermometer 51 are fixedly installed on the lower end surface of the cooling tube 14. The detection ends of the pressure gauge 50 and the thermometer 51 extend to the inner side of the cooling tube 14. The pressure gauge 50 and the thermometer 51 are both connected to the external controller by signal. During specific use, the pressure gauge 50 is used to measure the pressure value of the steam in the cooling tube 14. The detection end of the pressure gauge 50 extends to the inner side of the cooling tube 14 to ensure that the actual pressure of the steam can be accurately captured. The thermometer 51 is used to measure the temperature value of the steam in the cooling tube 14. The detection end of the thermometer 51 also extends to the inner side of the cooling tube 14 to obtain an accurate temperature reading. The pressure gauge 50 and the thermometer 51 are both connected to the external controller through a signal connection. This connection method enables the pressure and temperature data collected by the instrument to be transmitted to the controller in real time for further processing and analysis. The external controller usually has powerful data processing capabilities and automatic control functions, and can automatically adjust system parameters, issue alarm signals or perform other control actions according to the received data.
[0027] As an implementation method in this embodiment, Figure 4 As shown, the lower end surfaces of the air inlet pipe 11 and the cooling pipe 14 are both provided with a support frame 15, and the bottom end of the pressure reducing regulating valve 10 is provided with a support truncated platform 16, and the support frame 15 and the support truncated platform 16 are both fixed on the ground. The main function of the support frame 15 is to provide stable support for the pipeline, disperse and bear the weight of the pipeline and various forces and vibrations that may be generated during operation, and the support truncated platform 16 is used to provide a stable support for the pressure reducing regulating valve 10, and both the support frame 15 and the support truncated platform 16 are firmly fixed on the ground.
[0028] Working principle: When in use, by controlling the opening of the pressure reducing regulating valve 10, the high-pressure steam can be effectively reduced to the required pressure level, and then the steam is guided to the cooling box 13 through the pressure reducing pipe 12. When the high-pressure steam enters the cooling box 13 through the pressure reducing regulating valve 10, the water pump 24 starts to work, and water is sent to the water pump 24 through the water pipe 25 and pressurized and then sent to the spray head 22. The spray head 22 sprays the water evenly into the cooling box 13. The multiple cooling plates 20 provided help to increase the contact area between the steam and the cooling plates 20, thereby improving the heat exchange efficiency. The multiple air holes 21 opened on the cooling plates 20 are used for steam to pass through and exchange heat with the cooling plates 20 during the passage. These perforations may also The distribution and retention of the spray water on the cooling plate 20 are promoted, thereby increasing the interaction between water and steam, and the cooling plates 20 are set to an inclined state to guide the steam to form a specific flow path in the cooling box 13, promote the full mixing and contact between the steam and the cooling plate 20 and the spray water, and further improve the cooling effect. Then the cooled steam is output through the cooling pipe 14. The high back pressure heating unit cooling and pressure reducing device realizes pressure regulation through the pressure reducing regulating valve 10, and realizes steam temperature regulation through the cooling box 13 and its built-in cooling component. This design ensures that the steam can meet the pressure requirements and maintain a suitable temperature during the transportation process, thereby improving the efficiency and stability of the heating system.
[0029] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.
Claims
1. A high back pressure heating unit temperature and pressure reduction device, comprising a pressure reducing regulating valve (10), characterized in that: The air inlet end of the pressure reducing regulating valve (10) is fixedly connected to an air inlet pipe (11), the air outlet end of the pressure reducing regulating valve (10) is fixedly connected to a pressure reducing pipe (12), the air outlet end of the pressure reducing pipe (12) is fixedly connected to a cooling box (13), a cooling pipe (14) is fixedly connected to a side of the cooling box (13) away from the pressure reducing pipe (12), the pressure reducing pipe (12) and the cooling pipe (14) are both connected to the interior of the cooling box (13), and a cooling component for cooling steam is provided on the cooling box (13).
2. A high back pressure heating unit temperature and pressure reduction device according to claim 1, characterized in that: The cooling assembly comprises a plurality of cooling plates (20) fixed in an array inside a cooling box (13); the plurality of cooling plates (20) are all in an inclined state; a plurality of air holes (21) are provided on the plurality of cooling plates (20); a spray head (22) is provided at the top of the cooling box (13); a water pipe (23) is fixedly connected to the top of the spray head (22); a water pump (24) is fixedly installed at the top of the water pipe (23); and a water supply pipe (25) is connected to the water inlet end of the water pump (24).
3. A high back pressure heating unit temperature and pressure reduction device according to claim 2, characterized in that: A plurality of heat sinks (26) are fixed in an array on the outer walls of two opposite sides of the water conduit (23).
4. A high back pressure heating unit temperature and pressure reduction device according to claim 1, characterized in that: A drain pipe (30) is fixedly connected to the bottom end of the desuperheating box (13), the top end of the drain pipe (30) is flush with the inner bottom wall of the desuperheating box (13), and a control water valve (31) is fixedly installed on the drain pipe (30).
5. A high back pressure heating unit temperature and pressure reduction device according to claim 4, characterized in that: Water guide blocks (40) are symmetrically arranged on both sides of the inner bottom wall of the cooling box (13); the bottom ends of the water guide blocks (40) are fixedly connected to the inner bottom wall of the cooling box (13); the cross-section of the water guide blocks (40) is a right-angled triangle structure; and the water inlet of the drain pipe (30) is located between the two water guide blocks (40).
6. A high back pressure heating unit temperature and pressure reduction device according to claim 1, characterized in that: A pressure gauge (50) and a thermometer (51) are fixedly mounted on the lower end surface of the cooling tube (14); detection ends of the pressure gauge (50) and the thermometer (51) extend to the inside of the cooling tube (14); and signals of the pressure gauge (50) and the thermometer (51) are connected to an external controller.
7. A high back pressure heating unit temperature and pressure reduction device according to claim 1, characterized in that: The lower end surfaces of the air intake pipe (11) and the temperature reduction pipe (14) are both provided with a support frame (15), and the bottom end of the pressure reducing regulating valve (10) is provided with a support truncated platform (16), and the support frame (15) and the support truncated platform (16) are both fixed on the ground.