Boiler system

Abstract

The utility model discloses a boiler system, which is characterized in that a flowmeter is arranged on a main gas outlet pipeline of a boiler to measure the total steam yield of the boiler, and a flowmeter is arranged on a steam branch of each workshop or equipment. Flowmeters are installed at the front end and the tail end of the farther pipeline. Flowmeters are installed at the front end and the rear end of a pressure reducing valve and the front end of steam using equipment, and condensate water generated by different steam pipelines and equipment is metered, so that the condensate water amount can be calculated, and the condensate water amount can be calculated through comparison of the steam flow, the steam flow loss and the condensate water amount. And whether energy consumption abnormal conditions such as leakage exist in a steam pipeline, a drain valve and steam consumption equipment or not can be found, and the abnormal conditions can be handled in time, so that energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, and more specifically, to a boiler system. Background Art

[0002] The boilers of cigarette enterprises are installed in the power center, while the steam-consuming production equipment is installed in the production workshop. The power center is often far away from the production workshop, and there are many steam-using equipment and departments. During the steam transmission and utilization process, there are not only normal losses caused by pipeline heat dissipation resulting in steam turning into condensate, but also abnormal losses caused by pipeline, valve, and equipment leakage. These abnormal steam losses are often not easily detected in a timely manner.

[0003] Therefore, how to provide a boiler system has become a technical problem urgently to be solved in this field. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a boiler system.

[0005] According to the utility model, there is provided a boiler system, including a boiler, a main steam pipeline, a second flowmeter, a steam header, a high-pressure steam pipeline, a third flowmeter, a first device, a first low-pressure steam pipeline, a second low-pressure steam pipeline, a fourth flowmeter, a pressure reducing valve group, a second device, a high-pressure steam condensate pipeline, a first device condensate pipeline, a low-pressure steam condensate pipeline, a main condensate pipeline, a water tank, and a water pump;

[0006] The outlet end of the boiler is connected to one end of the main steam pipeline; the other end of the main steam pipeline is connected to the inlet end of the steam header; the second flowmeter is installed on the main steam pipeline; the first outlet end of the steam header is connected to the first end of the high-pressure steam pipeline; the second end of the high-pressure steam pipeline is connected to the inlet end of the first device; the third flowmeter is installed on the high-pressure steam pipeline and on one side of the first outlet end of the steam header; the second outlet end of the steam header is connected to one end of the first low-pressure steam pipeline; the other end of the first low-pressure steam pipeline is connected to the inlet end of the pressure reducing valve group; the outlet end of the pressure reducing valve group is connected to the first end of the second low-pressure steam pipeline; the second end of the second low-pressure steam pipeline is connected to the second device; the fourth flowmeter is installed on the first low-pressure steam pipeline and between the steam header and the pressure reducing valve group; one end of the high-pressure steam condensate pipeline is connected to the third end of the high-pressure steam pipeline; the other end of the high-pressure steam condensate pipeline is connected to the first end of the main condensate pipeline; one end of the first device condensate pipeline is connected to the water outlet end of the first device; the other end of the first device condensate pipeline is connected to the first end of the main condensate pipeline; one end of the low-pressure steam condensate pipeline is connected to the third end of the second low-pressure steam pipeline; the other end of the low-pressure steam condensate pipeline is connected to the third end of the main condensate pipeline; the second end of the main condensate pipeline is connected to the condensate inlet end of the water tank; the water outlet end of the water tank is connected to the water inlet end of the water pump; the water outlet end of the water pump is connected to the water inlet end of the boiler.

[0007] Optionally, the system further includes: a seventh flowmeter;

[0008] The seventh flowmeter is installed on the high-pressure steam pipeline and between the second end and the third end of the high-pressure steam pipeline.

[0009] Optionally, the system further includes: a fifth flowmeter;

[0010] The fifth flowmeter is installed on the second low-pressure steam pipeline and between the first end and the third end of the second low-pressure steam pipeline.

[0011] Optionally, the system further includes: a tenth flowmeter;

[0012] The tenth flowmeter is installed on the second low-pressure steam pipeline and between the second end and the third end of the second low-pressure steam pipeline.

[0013] Optionally, the system further includes: a sixth flowmeter;

[0014] The sixth flowmeter is installed on the high-pressure steam condensate pipeline.

[0015] Optionally, the system further includes: an eighth flowmeter;

[0016] The eighth flowmeter is installed on the condensate pipeline of the first device.

[0017] Optionally, the system further includes: a ninth flowmeter;

[0018] The ninth flowmeter is installed on the low-pressure steam condensate pipeline.

[0019] Optionally, the system further includes: a twelfth flowmeter

[0020] The twelfth flowmeter is installed on the total condensate pipeline and is between the second end and the third end of the total condensate pipeline.

[0021] According to the technical content disclosed by the present utility model, the following beneficial effects are achieved: In order to timely grasp the steam usage of energy-consuming equipment and departments, flowmeters are installed not only on the main steam pipeline of the boiler to measure the total steam output of the boiler, but also on the branch roads of steam usage in each workshop or equipment. If the steam transmission pipeline is relatively long and there are multiple steam traps in the middle of the pipeline, flowmeters are installed at the front end and the end of the relatively long pipeline. In this way, not only can the steam flow in the pipeline be measured, but also the loss during the steam transmission process can be calculated. If some steam-consuming equipment requires low-pressure steam and the steam is reduced in pressure by a pressure reducing valve group during transmission and then transported at low pressure, since the pressure of the low-pressure steam becomes lower after pressure reduction, the flow rate of the low-pressure steam is different from that of the high-pressure steam. Therefore, flowmeters are installed at the front end of the pressure reducing valve, the rear end of the pressure reducing valve, and the front end of the steam-consuming equipment. In this way, not only can the flow rate change before and after steam pressure reduction be measured to avoid inaccurate assessment, but also the flow rate change of the steam passing through the pressure reducing valve group and the steam loss can be calculated, and the steam loss during the long-distance transmission of the low-pressure steam can also be calculated, and whether the steam loss is normal can be detected. And the condensate generated by different steam pipelines and equipment is measured. In this way, not only can the condensate volume be calculated, but also through the comparison of the steam flow rate, steam flow rate loss, and condensate volume, it can be found whether there are abnormal energy consumption situations such as leaks in the steam pipeline, steam trap, steam-consuming equipment, etc., and the abnormal situations can be processed in a timely manner, thereby saving energy.

[0022] Other features and advantages of the present utility model will become clear through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0024] Figure 1 A schematic diagram of a boiler system provided according to an embodiment.

[0025] Description of the accompanying drawings: 1. first pipeline; 2. boiler; 3. first valve; 4. second valve; 5. first flowmeter; 6. second pipeline; 7. second flowmeter; 8. third valve; 9. fourth valve; 10. fifth valve; 11. third flowmeter; 12. fourth flowmeter; 13. third pipeline; 14. pressure reducing valve group; 15. fifth flowmeter; 16. fourth pipeline; 17. first steam trap; 18. fifth pipeline; 19. second steam trap; 20. sixth flowmeter; 21. sixth pipeline; 22. seventh flowmeter 1. flowmeter; 23. first equipment; 24. third steam trap; 25. eighth flowmeter; 26. seventh pipeline; 27. fourth steam trap; 28. eighth pipeline; 29. ​​fifth steam trap; 30. ninth flowmeter; 31. ninth pipeline; 32. tenth flowmeter; 33. second equipment; 34. tenth pipeline; 35. eleventh flowmeter; 36. sixth valve; 37. twelfth flowmeter; 38. seventh valve; 39. water tank; 40. water pump; 41. thirteenth flowmeter; 42. eleventh pipeline; 43. steam cylinder. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] According to the utility model, if Figure 1As shown, a boiler system is provided, including a boiler 2, a main steam pipeline, a second flowmeter 7, a steam header 43, a high-pressure steam pipeline, a third flowmeter 11, a first device 23, a first low-pressure steam pipeline, a second low-pressure steam pipeline, a fourth flowmeter 12, a pressure reducing valve group 14, a second device 33, a high-pressure steam condensate pipeline, a first device condensate pipeline, a low-pressure steam condensate pipeline, a main condensate pipeline, a water tank 39 and a water pump 40;

[0032] The outlet end of the boiler 2 is connected to one end of the main steam pipeline; the other end of the main steam pipeline is connected to the inlet end of the steam header 43; the second flowmeter 7 is installed on the main steam pipeline; the first outlet end of the steam header 43 is connected to the first end of the high-pressure steam pipeline; the second end of the high-pressure steam pipeline is connected to the inlet end of the first device 23; the third flowmeter 11 is installed on the high-pressure steam pipeline and on the side of the first outlet end of the steam header 43; the second outlet end of the steam header 43 is connected to one end of the first low-pressure steam pipeline; the other end of the first low-pressure steam pipeline is connected to the inlet end of the pressure reducing valve group 14; the outlet end of the pressure reducing valve group 14 is connected to the first end of the second low-pressure steam pipeline; the second end of the second low-pressure steam pipeline is connected to the second device 33; the fourth flowmeter 12 is installed on the first low-pressure steam pipeline and between the steam header 43 and the pressure reducing valve group 14; one end of the high-pressure steam condensate pipeline is connected to the third end of the high-pressure steam pipeline; the other end of the high-pressure steam condensate pipeline is connected to the first end of the main condensate pipeline; one end of the first device condensate pipeline is connected to the water outlet end of the first device 23; the other end of the first device condensate pipeline is connected to the first end of the main condensate pipeline; one end of the low-pressure steam condensate pipeline is connected to the third section of the second low-pressure steam pipeline; the other end of the low-pressure steam condensate pipeline is connected to the third end of the main condensate pipeline; the second end of the main condensate pipeline is connected to the condensate inlet end of the water tank 39; the water outlet end of the water tank 39 is connected to the water inlet end of the water pump 40; the water outlet end of the water pump 40 is connected to the water inlet end of the boiler 2.

[0033] In some embodiments, the system further includes: a seventh flowmeter 22;

[0034] The seventh flowmeter 22 is installed on the high-pressure steam pipeline and between the second end and the third end of the high-pressure steam pipeline.

[0035] The system further includes: a fifth flowmeter 15;

[0036] The fifth flowmeter 15 is installed on the second low-pressure steam pipeline and between the first end and the third end of the second low-pressure steam pipeline.

[0037] The system further includes: a tenth flowmeter 32;

[0038] The tenth flowmeter 32 is installed on the second low-pressure steam pipeline and is between the second end and the third end of the second low-pressure steam pipeline.

[0039] The system further includes: a sixth flowmeter 20;

[0040] The sixth flowmeter 20 is installed on the high-pressure steam condensate pipeline.

[0041] The system further includes: an eighth flowmeter 25;

[0042] The eighth flowmeter 25 is installed on the condensate pipeline of the first device.

[0043] The system further includes: a ninth flowmeter 30;

[0044] The ninth flowmeter 30 is installed on the low-pressure steam condensate pipeline.

[0045] The system further includes: a twelfth flowmeter 37

[0046] The twelfth flowmeter 37 is installed on the total condensate pipeline and is between the second end and the third end of the total condensate pipeline. Specific embodiments

[0048] Such as Figure 1As shown in the figure, the steam generated by the boiler 2 enters the steam header 43 through the second valve 4, the second pipeline 6, the second flowmeter 7, and the third valve 8. The flowmeter can measure the steam output of the boiler 2. When there are multiple boilers, the number of flowmeters increases accordingly. The steam in the steam header 43 can enter the first device 23 for utilization through the fourth valve 9, the third flowmeter 11, the fourth pipeline 16, the fifth pipeline 18, the sixth pipeline 21, and the seventh flowmeter 22. The third flowmeter 11 can measure the steam flow rate entering the first device 23 using steam. If the steam header 43 is far from the first device 23, there are multiple sets of steam traps on the steam pipelines 16, 18, and 21. During the steam transportation process, due to pipeline heat dissipation, etc., part of the steam will form condensate, which will pass through the first steam trap 17 and the second steam trap 19 respectively, and then enter the water tank 39 through the sixth flowmeter 20, the seventh pipeline 26, the tenth pipeline 34, the twelfth flowmeter 37, and the seventh valve 38. The third flowmeter 11 on the steam pipeline can not only measure the total steam flow rate entering this branch steam pipeline, but the seventh flowmeter 22 can measure the actual steam volume entering the first device 23 even more. The difference between the third flowmeter 11 and the seventh flowmeter 22 will be automatically calculated by the system. The difference between the third flowmeter 11 and the seventh flowmeter 22 is the loss during the long-distance steam transportation through the pipeline. Under normal circumstances, the difference between the third flowmeter 11 and the seventh flowmeter 22 is relatively stable, and after system measurement, it is basically equivalent to the detected value of the sixth flowmeter 20 on the condensate pipeline, that is, the steam loss generated by the heat dissipation of the long-distance steam transportation through the pipeline is basically equivalent to the amount of condensate generated. If the difference between the third flowmeter 11 and the seventh flowmeter 22 changes greatly, and after measurement, it is greater than the detected value of the sixth flowmeter 20 on the condensate pipeline, it indicates that there is a leakage situation in the pipeline, valve, or other accessories during the steam transportation process. Workers can discover and repair it in time, thus preventing steam leakage and saving energy. If the first device 23 using steam belongs to a heat exchange device and also generates condensate, the condensate generated by it will also be recycled into the water tank 39 through the third steam trap 24, the eighth flowmeter 25, the seventh pipeline 26, the tenth pipeline 34, the twelfth flowmeter 37, and the seventh valve 38. At this time, the seventh steam flowmeter 22 can not only measure the actual steam volume entering the first device 23 using steam, but also if the difference between the measured value of the seventh steam flowmeter 22 and the measured value of the eighth flowmeter 25 is normal after system measurement, it indicates that the first device 23 using steam is operating normally. If the difference between the measured value of the seventh steam flowmeter 22 and the measured value of the eighth flowmeter 25 is abnormal after system measurement, it may indicate that there is a steam leakage situation in the first device 23. The system will alarm in time, and workers can discover and repair the leakage point of the device in time, thus saving energy.

[0049] The steam in the steam header 43 can also enter the second steam-using device 33 through the fifth valve 10, the fourth flowmeter 12, the third pipeline 13, the pressure reducing valve group 14, the fifth flowmeter 15, the eighth pipeline 28, the ninth pipeline 31, and the tenth flowmeter 32 for utilization. The fourth flowmeter 12 can measure the steam flow entering the second steam-using device 33. If the steam-using pressure of the second steam-using device 33 is lower than the steam production pressure of the boiler 2, a pressure reducing valve group 14 is installed on the steam pipeline to reduce the steam pressure and then transport it to the second device 33. The second device 33 may also be multiple devices. Since the pressure before and after the steam pressure reduction is different, the detection values of the third flowmeter 11 before the pressure reducing valve group 14 and the fifth flowmeter 15 after it on the same branch pipeline are different. If the flow rates are basically equivalent after being calculated by the control system, it indicates that the pressure reducing valve group 14 is operating normally. If the difference between the third flowmeter 11 and the fifth flowmeter 15 is relatively large after being calculated by the control system, it indicates that there may be steam leakage in the pressure reducing valve, safety valve, pressure gauge, etc. in the pressure reducing valve group 14, and the system will alarm, enabling the workers to discover and repair it in a timely manner. If the steam header 43 is far from the second steam-using device 33, there are multiple sets of steam traps on the third pipeline 13, the eighth pipeline 28, and the ninth pipeline 31 for steam transportation. During the steam transportation process, due to pipeline heat dissipation, etc., part of the steam will form condensate, which will enter the water tank 39 through the fourth steam trap 27, the fifth steam trap 29, the ninth flowmeter 30, the tenth pipeline 34, the twelfth flowmeter 37, and the seventh valve 38 respectively. The fourth flowmeter 12 on the steam pipeline can not only measure the total steam flow entering this branch steam pipeline, the fifth flowmeter 15 can measure the total steam flow of the branch after pressure reduction, and the tenth flowmeter 32 can further measure the actual steam volume entering the second device 33. The difference between the fifth flowmeter 15 and the tenth flowmeter 32 will be automatically calculated by the control system. The difference between the fifth flowmeter 15 and the tenth flowmeter 32 is the loss during the long-distance steam transportation in this branch pipeline. Under normal circumstances, the difference between the fifth flowmeter 15 and the tenth flowmeter 32 is relatively stable, and after being calculated by the system, it is basically equivalent to the detection value of the ninth flowmeter 30 on the condensate pipeline, that is, the steam loss generated by the heat dissipation of the long-distance steam transportation in the pipeline is basically equivalent to the amount of condensate generated. If the difference between the fifth flowmeter 15 and the tenth flowmeter 32 changes significantly and is greater than the detection value of the ninth flowmeter 30 on the condensate pipeline after calculation, it indicates that there is a leakage condition in the pipeline, valve, or other accessories during the steam transportation process, and the workers can discover and repair it in a timely manner, thereby preventing steam leakage and saving energy.

[0050] The condensed water recovered in the water tank 39 can enter the boiler 2 through the water pump 40, the thirteenth flowmeter 41, the eleventh pipeline 42, the first pipeline 1, the first flowmeter 5, and the first valve 3 for steam recycling. When the water volume in the water tank 39 is insufficient, i.e., the water level is low, softened water can enter the water tank 39 through the eleventh flowmeter 35 and the sixth valve 36 to supplement water. The twelfth flowmeter 37 can measure the total amount of condensed water entering the water tank 39, and the eleventh flowmeter 35 can measure the total amount of softened water supplementing the water tank 39, so as to overall control how much steam is generated by the steam system, how much condensed water can be generated and recovered, and how much water is insufficient and needs to supplement softened water. When the water tank 39 is far from the boiler 2, the thirteenth flowmeter 41 and the first flowmeter 5 are respectively installed on the pipelines near the water pump 40 and near the boiler 2. Both the thirteenth flowmeter 41 and the first flowmeter 5 can measure the total water volume entering the boiler. Moreover, when the measured values of the thirteenth flowmeter 41 and the first flowmeter 5 differ greatly, the monitoring system gives an alarm, and it can be determined that there is a leak in the intermediate pipeline system, so that workers can discover and repair it in time, thus avoiding wasting water resources.

[0051] In summary, for the technical content disclosed by the present utility model, in order to timely master the steam usage situation of energy-consuming equipment and departments, flowmeters are installed not only on the main steam outlet pipeline of the boiler to measure the total steam output of the boiler, but also on the branch roads of each workshop or equipment using steam. If the steam transmission pipeline is far away and there are multiple steam traps in the middle, flowmeters are installed at the front end and the end of the far pipeline. In this way, not only can the steam flow in the pipeline be measured, but also the loss during the steam transmission process can be calculated. If some steam-consuming equipment requires low-pressure steam, the steam is reduced to low pressure by a pressure reducing valve group during transmission. Since the steam pressure becomes lower after pressure reduction, the flow rate of low-pressure steam is different from that of high-pressure steam. Therefore, flowmeters are installed at the front end, the rear end of the pressure reducing valve, and the front end of the steam-consuming equipment. In this way, not only the flow rate change before and after steam pressure reduction is measured to avoid inaccurate assessment, but also the flow rate change of the steam passing through the pressure reducing valve group and the steam loss can be calculated, and the steam loss during the long-distance transmission of the low-pressure steam after pressure reduction can be calculated, and whether the steam loss is normal can be found. And the condensed water generated by different steam pipelines and equipment is measured. In this way, not only the amount of condensed water can be calculated, but also through the comparison of the steam flow rate, the steam flow rate loss and the amount of condensed water, whether there are energy-consuming abnormal conditions such as leaks in the steam pipeline, steam trap, steam-consuming equipment, etc. can be found, and the abnormal conditions can be processed in time, thereby saving energy.

[0052] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A boiler system, characterized in that, Including: A boiler, a main steam pipeline, a second flowmeter, a steam header, a high-pressure steam pipeline, a third flowmeter, a first device, a first low-pressure steam pipeline, a second low-pressure steam pipeline, a fourth flowmeter, a pressure reducing valve group, a second device, a high-pressure steam condensate pipeline, a first device condensate pipeline, a low-pressure steam condensate pipeline, a main condensate pipeline, a water tank and a water pump; The outlet end of the boiler is connected to one end of the main steam pipeline; the other end of the main steam pipeline is connected to the inlet end of the steam header; the second flowmeter is installed on the main steam pipeline; the first outlet end of the steam header is connected to the first end of the high-pressure steam pipeline; the second end of the high-pressure steam pipeline is connected to the inlet end of the first device; the third flowmeter is installed on the high-pressure steam pipeline and on one side of the first outlet end of the steam header; the second outlet end of the steam header is connected to one end of the first low-pressure steam pipeline; the other end of the first low-pressure steam pipeline is connected to the inlet end of the pressure reducing valve group; the outlet end of the pressure reducing valve group is connected to the first end of the second low-pressure steam pipeline; the second end of the second low-pressure steam pipeline is connected to the second device; the fourth flowmeter is installed on the first low-pressure steam pipeline and between the steam header and the pressure reducing valve group; one end of the high-pressure steam condensate pipeline is connected to the third end of the high-pressure steam pipeline; the other end of the high-pressure steam condensate pipeline is connected to the first end of the main condensate pipeline; one end of the first device condensate pipeline is connected to the outlet end of the first device; the other end of the first device condensate pipeline is connected to the first end of the main condensate pipeline; one end of the low-pressure steam condensate pipeline is connected to the third end of the second low-pressure steam pipeline; the other end of the low-pressure steam condensate pipeline is connected to the third end of the main condensate pipeline; the second end of the main condensate pipeline is connected to the condensate inlet end of the water tank; the outlet end of the water tank is connected to the inlet end of the water pump; the outlet end of the water pump is connected to the inlet end of the boiler.

2. The boiler system according to claim 1, characterized in that, The system further includes: a seventh flowmeter; The seventh flowmeter is installed on the high-pressure steam pipeline and between the second end and the third end of the high-pressure steam pipeline.

3. The boiler system according to claim 2, characterized in that, The system further includes: a fifth flowmeter; The fifth flowmeter is installed on the second low-pressure steam pipeline and between the first end and the third end of the second low-pressure steam pipeline.

4. The boiler system according to claim 3, characterized in that, The system further includes: a tenth flowmeter; The tenth flowmeter is installed on the second low-pressure steam pipeline and between the second end and the third end of the second low-pressure steam pipeline.

5. The boiler system according to claim 4, wherein The system further includes: a sixth flowmeter; The sixth flowmeter is installed on the high-pressure steam condensate pipeline.

6. The boiler system according to claim 5, characterized in that The system further includes: an eighth flowmeter; The eighth flowmeter is installed on the first device condensate pipeline.

7. The boiler system according to claim 6, characterized in that, The system further includes: a ninth flowmeter; The ninth flowmeter is installed on the low-pressure steam condensate pipeline.

8. The boiler system according to claim 7, characterized in that, The system further includes: a twelfth flowmeter The twelfth flowmeter is installed on the main condensate pipeline and between the second end and the third end of the main condensate pipeline.

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