CN219547430U - Steam condensate water system - Google Patents
Steam condensate water system Download PDFInfo
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- CN219547430U CN219547430U CN202320146144.2U CN202320146144U CN219547430U CN 219547430 U CN219547430 U CN 219547430U CN 202320146144 U CN202320146144 U CN 202320146144U CN 219547430 U CN219547430 U CN 219547430U
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Abstract
The steam condensate water system comprises a vacuum generator, wherein the vacuum generator comprises an ejector, a water tank and a high-pressure water pump, and the ejector, the water tank and the high-pressure water pump are connected in a closed loop; the ejector is in a hollow columnar design, a jet orifice and a discharge orifice are respectively arranged at the top end and the bottom end of the ejector, and the jet orifice is connected with a high-pressure water pump; the ejector is internally provided with a vacuum chamber and a venturi tube which are mutually communicated, the vacuum chamber is positioned at the upper part of the ejector, the venturi tube is positioned at the lower part of the ejector, and the vacuum chamber is internally provided with a spray nozzle; and a suction inlet is further formed in one side of the upper part of the ejector, and the suction inlet is communicated with the vacuum chamber. Compared with a conventional vacuum pump, the vacuum generator of the utility model has the advantages of simple structure, convenient installation, overhauling and maintenance, energy efficiency ratio far higher than that of the conventional vacuum pump, and great benefit to control and saving of production cost; the utility model has strong practicability and has stronger popularization significance.
Description
Technical Field
The utility model relates to the technical field of papermaking, in particular to a steam condensate water system.
Background
And after entering the drying cylinder, the steam of the steam condensate water system of the paper machine exchanges heat, the volume of the steam condensate water becomes smaller, and a drainage pressure difference is formed at the inlet and the outlet of the drying cylinder to drain the condensate water in the drying cylinder. However, noncondensable gas in the system is small in volume change and is accumulated in the drying cylinder and the system to influence the formation of inlet and outlet drainage pressure difference, so that abnormal drainage of each air inlet section of the steam condensate water system is caused. The conventional steam condensate water system is characterized in that a tube bundle surface condenser and a vacuum pump are arranged at the tail end of the steam condensate water system to exchange heat between non-condensable gas and tail section low-temperature steam of the steam condensate water system and discharge the non-condensable gas and tail section low-temperature steam out of the steam condensate water system through the surface condenser, but the vacuum pump is high in energy consumption, high in one-time installation cost and high in maintenance cost, and heat which can be recycled is also partially contained in the non-condensable gas after heat exchange, so that energy waste is caused by direct discharge. Therefore, the existing steam condensate water system is often consumed greatly and has low efficiency, so that the whole process of papermaking production is greatly influenced.
Disclosure of Invention
Based on this, it is necessary to provide a steam condensate system that addresses the deficiencies in the prior art.
The steam condensate water system comprises a vacuum generator, wherein the vacuum generator comprises an ejector, a water tank and a high-pressure water pump, and the ejector, the water tank and the high-pressure water pump are connected in a closed loop. The ejector is in a hollow columnar design, the top end and the bottom end of the ejector are respectively provided with a jet orifice and a discharge orifice, and the jet orifice is connected with a high-pressure water pump. The ejector is characterized in that a vacuum chamber and a venturi tube which are mutually communicated are further arranged in the ejector, the vacuum chamber is located at the upper part of the ejector, the venturi tube is located at the lower part of the ejector, and a spray nozzle is further arranged in the vacuum chamber. And a suction inlet is further formed in one side of the upper part of the ejector, and the suction inlet is communicated with the vacuum chamber.
Further, a water tank thermometer is arranged in the water tank, a clean water supplementing valve is further arranged at the water inlet of the water tank, and the clean water supplementing valve is in signal connection with the water tank thermometer.
Further, the steam condensate system further comprises a surface condenser, wherein the surface condenser is provided with a first steam inlet, a cold water inlet and a first condensate outlet. The first condensate water outlet is provided with a surface condenser thermometer and a first automatic regulating valve, and the surface condenser thermometer is in signal connection with the first automatic regulating valve.
Further, the steam condensate water system further comprises a first steam-water separator, a second steam-water separator, a plurality of third steam-water separators and a fourth steam-water separator, wherein the first steam-water separator, the second steam-water separator, the plurality of third steam-water separators and the fourth steam-water separator are respectively provided with a main inlet, a steam outlet and a second condensate water outlet.
Further, the main inlet of the first steam-water separator is connected with the surface condenser, and the steam outlet of the first steam-water separator is connected with the suction inlet of the ejector. And steam outlets of the fourth steam-water separators are connected with a main inlet of the second steam-water separator.
Further, the steam condensate water system further comprises a first drying cylinder group, a second drying cylinder group and a plurality of third drying cylinder groups, wherein the first drying cylinder group, the second drying cylinder group and the plurality of third drying cylinder groups are respectively provided with a second steam inlet and a third condensate water outlet.
Further, third condensate water outlets of the first drying cylinder group and the second drying cylinder group are respectively connected with main inlets of a plurality of third steam-water separators, and a second steam inlet of the second drying cylinder group is also connected with steam outlets of the second steam-water separators. And the third condensate water outlets of the third drying cylinder groups are respectively connected with the main inlets of the fourth steam-water separators.
Further, the steam condensate water system further comprises a plurality of heat pumps, wherein the heat pumps are respectively provided with a main air supply port and a steam output port, and the steam output ports of the heat pumps are respectively connected with the second steam inlets of the first drying cylinder group, the second drying cylinder group and the third drying cylinder group. The auxiliary air supply ports of the heat pumps are respectively connected with steam outlets of the first steam-water separator, the third steam-water separators and the fourth steam-water separators.
Further, the steam condensate water system also comprises a total condensate water tank and a vacuum tank connected with the total condensate water tank. The second condensate outlets of the first steam-water separator, the second steam-water separator and the third steam-water separators are all connected with the total condensate tank. And steam outlets of the third steam-water separators are also connected with a vacuum tank.
Further, a plurality of first liquid level meters are arranged in the third vapor-water separators, a plurality of second automatic regulating valves are also arranged between the third vapor-water separators and the total condensate tank, and the second automatic regulating valves are respectively connected with the first liquid level meters in a corresponding signal mode. The plurality of the fourth steam-water separators are internally provided with second liquid level meters, and a plurality of third automatic regulating valves are also arranged between the fourth steam-water separators and the second steam-water separators and are respectively in signal connection with the plurality of second liquid level meters.
In summary, the steam condensate system of the utility model has the following beneficial effects: the vacuum generator consisting of the ejector, the high-pressure water pump and the water tank is designed to generate negative pressure, the low-temperature steam at the tail section treated by the surface condenser further recovers heat and discharges non-condensable gas, compared with a conventional vacuum pump, the vacuum generator is simple in structure and convenient to install, overhaul and maintain, clean water in the water tank can recover heat in the non-condensable gas as much as possible, and the energy consumption of the ejector and the high-pressure water pump is very low, so that the energy efficiency ratio of the vacuum generator is far higher than that of the conventional vacuum pump, and the vacuum generator is very beneficial to control and saving of production cost; the clean water supplement of the vacuum generator and the condensed water discharge of the surface condenser are realized through the interlocking control of the thermometer and the automatic valve, so that the operation of the system is highly automated, and the system is efficient and reliable; the multi-group steam-water separators arranged in the system enable the separation treatment of the condensed water and the steam to be more efficient, the multi-stage separation treatment is realized among the steam-water separators through series connection, so that the separation of the condensed water and the steam is more thorough, and the water level meter and the automatic valve are arranged in the steam-water separators for interlocking control to discharge the condensed water, so that the water vapor amount in the steam-water separators can be effectively controlled to be always proper, and the problem of no-load or overload operation of the steam-water separators is avoided; the auxiliary air supply port on the heat pump connected with the cylinder group can recycle the steam recovered by the steam-water separator, so that the energy efficiency ratio of the system is further improved; the utility model has strong practicability and has stronger popularization significance.
Drawings
FIG. 1 is a schematic diagram of a system configuration of a steam condensate system according to the present utility model;
FIG. 2 is a schematic cross-sectional view of the ejector of the present utility model;
FIG. 3 is an enlarged schematic view of portion A of FIG. 1;
FIG. 4 is an enlarged schematic view of portion B of FIG. 1;
fig. 5 is an enlarged schematic view of a portion C in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, the present utility model provides a steam condensate system 100, which comprises a vacuum generator 10, wherein the vacuum generator 10 comprises an ejector 11, a water tank 12 and a high-pressure water pump 13, and the ejector 11, the water tank 12 and the high-pressure water pump 13 are connected in a closed loop.
The ejector 11 is in a hollow column shape, the top end and the bottom end of the ejector 11 are respectively provided with an ejector 111 and a discharge outlet 112, and the ejector 111 is connected with the high-pressure water pump 13. The ejector 11 is also internally provided with a vacuum chamber 113 and a venturi tube 114 which are mutually communicated, the vacuum chamber 113 is positioned at the upper part of the ejector 11, the venturi tube 114 is positioned at the lower part of the ejector 11, and the vacuum chamber 113 is also internally provided with a spray nozzle 115. A suction port 116 is also provided on the upper side of the ejector 11, and the suction port 116 communicates with the vacuum chamber 113. In operation of the vacuum generator 10, water is drawn by the high pressure water pump 13 and sprayed from the jet port 111 of the ejector 11 to form a high pressure water column through the spray nozzle 115. The high-pressure water column can form negative pressure in the upper vacuum chamber 113, so that non-condensable gas is sucked into the ejector 11 from the suction inlet 116, mixed with the high-pressure water column in the middle section of the venturi tube 114, and finally discharged into the water tank 12 from the discharge outlet 112.
A water tank thermometer 121 is arranged in the water tank 12, a clean water supplementing valve 122 is further arranged at the water inlet of the water tank 12, and the clean water supplementing valve 122 is in signal connection with the water tank thermometer 121. The water tank thermometer 121 can monitor the temperature of the liquid in the water tank 12 in real time, when the temperature is too high, the water tank thermometer 121 sends a signal to the clean water supplementing valve 122 to control the valve to be opened for low-temperature clean water supply, and when the temperature is too low, the clean water supplementing valve 122 is closed to stop water supply to the water tank 12.
The steam condensate system 100 further includes a surface condenser 20, and a first steam inlet a, a cold water inlet b, and a first condensate outlet c are disposed on the surface condenser 20. The first condensate water outlet c is provided with a surface condenser thermometer 21 and a first automatic regulating valve 22, and the surface condenser thermometer 21 is in signal connection with the first automatic regulating valve 22. The surface condenser 20 can transfer the heat of high-temperature steam to the cooling water, the surface condenser thermometer 21 can monitor the temperature of the internal condensed water in real time, and when the temperature of the condensed water reaches a set value, the thermometer sends a signal to the first automatic regulating valve 22 to control the valve to be opened, so that the condensed water after temperature rise is conveyed into the hot water tank 12 for being supplied to various places of the paper machine.
The steam condensate system 100 further includes a first steam-water separator 31, a second steam-water separator 32, a plurality of third steam-water separators 33, and a fourth steam-water separator 34, where the first steam-water separator 31, the second steam-water separator 32, the plurality of third steam-water separators 33, and the fourth steam-water separator 34 are respectively provided with a main inlet d, a steam outlet e, and a second condensate outlet f. The main inlet d of the first steam-water separator 31 is connected to the surface condenser 20, and the steam outlet e of the first steam-water separator 31 is connected to the suction inlet 116 of the ejector 11. The steam outlets e of the fourth steam-water separator 34 are all connected to the main inlet d of the second steam-water separator 32. The first steam-water separator 31 can further separate the non-condensable gas after the primary treatment of the surface condenser 20, and the second steam-water separator 32 can secondarily separate the condensed water after the primary separation of the plurality of fourth steam-water separators 34, so that the utilization rate of the steam resources can be higher through multiple classification treatments.
The steam condensate system 100 further includes a first drying cylinder group 41, a second drying cylinder group 42, and a plurality of third drying cylinder groups 43, where the first drying cylinder group 41, the second drying cylinder group 42, and the plurality of third drying cylinder groups 43 are respectively provided with a second steam inlet g and a third condensate outlet h. The third condensed water outlets h of the first drying cylinder group 41 and the second drying cylinder group 42 are respectively connected with the main inlets d of the third steam-water separators 33, and the second steam inlet g of the second drying cylinder group 42 is also connected with the steam outlet e of the second steam-water separator 32. The third condensate water outlets h of the third dryer groups 43 are connected to the main inlets d of the fourth steam-water separators 34, respectively. The steam recovered by the second steam-water separator 32 can be conveyed to the second drying cylinder group 42 for recycling, so that energy is further saved.
The steam condensate system 100 further includes a plurality of heat pumps 50, wherein a main air supply port i and a steam outlet j are respectively provided on a plurality of heat pumps 50, and the steam outlets j of a plurality of heat pumps 50 are respectively connected with the second steam inlets g of the first drying cylinder group 41, the second drying cylinder group 42 and a plurality of third drying cylinder groups 43. The heat pumps 50 are also provided with auxiliary air supply ports k, and the auxiliary air supply ports k of the heat pumps 50 are respectively connected with steam outlets e of the first steam-water separator 31, the third steam-water separators 33 and the fourth steam-water separators 34. The steam recovered by the first steam-water separator 31, the third steam-water separators 33 and the fourth steam-water separators 34 can be conveyed to the heat pump 50 again to be converted into high-temperature steam, and then the high-temperature steam is supplied to the drying cylinder group for recycling, so that the energy is further saved.
The steam condensate system 100 further includes a total condensate sump 60 and a vacuum sump 70 coupled to the total condensate sump 60. The first condensate outlet f of the first steam-water separator 31, the second steam-water separator 32 and the third steam-water separators 33 are all connected with the total condensate tank 60. The steam outlets e of the third steam-water separators 33 are also connected to the vacuum tank 70. The total condensate tank 60 is capable of collecting and storing condensate in the steam-water separator and delivering the condensate to the vacuum tank 70, absorbing heat from steam introduced from the third steam-water separator 33 when passing through the vacuum tank 70, and the condensate having absorbed heat can be supplied to a third party for use, for example, in power generation in a power plant or the like.
A first liquid level meter (not shown) is arranged in the third steam-water separators 33, a second automatic regulating valve 331 is also arranged between the third steam-water separators 33 and the total condensate tank 60, and the second automatic regulating valves 331 are respectively connected with the first liquid level meters in a corresponding signal manner. A second liquid level meter (not shown) is arranged in the fourth steam-water separators 34, a third automatic regulating valve 341 is also arranged between the fourth steam-water separators 34 and the second steam-water separators 32, and the third automatic regulating valves 341 are respectively connected with the second liquid level meters in a corresponding signal manner. The liquid level meter can monitor the condensate water reserves in the steam-water separator in real time, and when the liquid level reaches a set value, the liquid level meter can send a signal to the automatic regulating valve to control the valve to be opened for discharging the condensate water, so that the phenomenon that the normal operation of the device is influenced due to excessive condensate water in the steam-water separator is avoided.
When the utility model is operated, firstly, high-temperature steam is processed by the heat pump 50 and then is supplied to a dryer group for use, and the used water-steam mixture is conveyed into each steam-water separator for separation treatment. And then, one part of the separated steam is conveyed to the heat pump 50 or the drying cylinder group again for secondary utilization, and the other part of the separated steam is conveyed to the surface condenser 20 for condensation heat exchange, so that heat in the steam is transferred to clean water and then hot water is supplied to all parts of the paper machine for use. The condensed water separated by the steam-water separator is all collected and stored in the total condensed water tank 60 and then is led into the vacuum tank 70, meanwhile, the vacuum tank 70 also introduces part of steam of the steam-water separator, and the condensed water absorbs heat in the steam and then is supplied to a power plant for use.
After condensing the steam, the surface condenser 20 still has partial non-condensable gases, and the vacuum generator 10 sucks the non-condensable gases under negative pressure through the cooperation between the high-pressure water pump 13 and the ejector 11, mixes the non-condensable gases into a high-pressure water column, and discharges the non-condensable gases into the water tank 12, and the mixed hot water in the water tank 12 can be further supplied to various places of the paper machine.
In summary, the steam condensate system 100 of the present utility model has the following advantages: by designing the vacuum generator 10 consisting of the ejector 11, the high-pressure water pump 13 and the water tank 12 to generate negative pressure, the tail section low-temperature steam treated by the surface condenser 20 further recovers heat and discharges non-condensable gas, compared with a conventional vacuum pump, the vacuum generator 10 has a simple structure and is convenient to install, overhaul and maintain, clean water in the water tank 12 can recover heat in the non-condensable gas as much as possible, and the energy consumption of the ejector 11 and the high-pressure water pump 13 is very low, so that the energy efficiency of the vacuum generator 10 is far higher than that of the conventional vacuum pump, and the control and the saving of production cost are very beneficial; the clean water supplement of the vacuum generator 10 and the condensed water discharge of the surface condenser 20 are realized through the interlocking control of a thermometer and an automatic valve, so that the operation of the system is highly automated, and the system is efficient and reliable; the multi-group steam-water separators arranged in the system enable the separation treatment of the condensed water and the steam to be more efficient, the multi-stage separation treatment is realized among the steam-water separators through series connection, so that the separation of the condensed water and the steam is more thorough, and the water level meter and the automatic valve are arranged in the steam-water separators for interlocking control to discharge the condensed water, so that the water vapor amount in the steam-water separators can be effectively controlled to be always proper, and the problem of no-load or overload operation of the steam-water separators is avoided; the auxiliary air supply port k on the heat pump 50 connected with the cylinder group can recycle the steam recovered by the steam-water separator, so that the energy efficiency ratio of the system is further improved; the utility model has strong practicability and has stronger popularization significance.
The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the utility model. Accordingly, the scope of the utility model should be determined from the following claims.
Claims (10)
1. A steam condensate system, characterized by: the device comprises a vacuum generator, wherein the vacuum generator comprises an ejector, a water tank and a high-pressure water pump, and the ejector, the water tank and the high-pressure water pump are connected in a closed loop; the ejector is in a hollow columnar design, a jet orifice and a discharge orifice are respectively arranged at the top end and the bottom end of the ejector, and the jet orifice is connected with a high-pressure water pump; the ejector is internally provided with a vacuum chamber and a venturi tube which are mutually communicated, the vacuum chamber is positioned at the upper part of the ejector, the venturi tube is positioned at the lower part of the ejector, and the vacuum chamber is internally provided with a spray nozzle; and a suction inlet is further formed in one side of the upper part of the ejector, and the suction inlet is communicated with the vacuum chamber.
2. The steam condensate system of claim 1, wherein: the water tank is internally provided with a water tank thermometer, the water inlet of the water tank is also provided with a clear water supplementing valve, and the clear water supplementing valve is in signal connection with the water tank thermometer.
3. The steam condensate system of claim 1, wherein: the surface condenser is provided with a first steam inlet, a cold water inlet and a first condensate outlet; the first condensate water outlet is provided with a surface condenser thermometer and a first automatic regulating valve, and the surface condenser thermometer is in signal connection with the first automatic regulating valve.
4. The steam condensate system of claim 3, wherein: the device comprises a first steam-water separator, a second steam-water separator, a plurality of third steam-water separators and a fourth steam-water separator, wherein the first steam-water separator, the second steam-water separator, the plurality of third steam-water separators and the fourth steam-water separator are respectively provided with a main inlet, a steam outlet and a second condensate outlet.
5. The steam condensate system of claim 4, wherein: the main inlet of the first steam-water separator is connected with the surface condenser, and the steam outlet of the first steam-water separator is connected with the suction inlet of the ejector; and steam outlets of the fourth steam-water separators are connected with a main inlet of the second steam-water separator.
6. The steam condensate system of claim 4, wherein: the dryer further comprises a first dryer group, a second dryer group and a plurality of third dryer groups, wherein the first dryer group, the second dryer group and the plurality of third dryer groups are respectively provided with a second steam inlet and a third condensate outlet.
7. The steam condensate system of claim 6, wherein: the third condensate water outlets of the first drying cylinder group and the second drying cylinder group are respectively connected with the main inlets of a plurality of third steam-water separators, and the second steam inlet of the second drying cylinder group is also connected with the steam outlets of the second steam-water separators; and the third condensate water outlets of the third drying cylinder groups are respectively connected with the main inlets of the fourth steam-water separators.
8. The steam condensate system of claim 7, wherein: the system also comprises a plurality of heat pumps, wherein the heat pumps are respectively provided with a main air supply port and a steam output port, and the steam output ports of the heat pumps are respectively connected with the second steam inlets of the first drying cylinder group, the second drying cylinder group and the third drying cylinder group; the auxiliary air supply ports of the heat pumps are respectively connected with steam outlets of the first steam-water separator, the third steam-water separators and the fourth steam-water separators.
9. The steam condensate system of claim 4, wherein: the device also comprises a total condensation water tank and a vacuum tank connected with the total condensation water tank; the second condensate outlets of the first steam-water separator, the second steam-water separator and the third steam-water separators are all connected with a total condensate tank; and steam outlets of the third steam-water separators are also connected with a vacuum tank.
10. The steam condensate system of claim 9, wherein: a first liquid level meter is arranged in each of the plurality of third steam-water separators, a second automatic regulating valve is also arranged between each of the plurality of third steam-water separators and the total condensate tank, and the plurality of second automatic regulating valves are respectively connected with the plurality of first liquid level meters in a corresponding signal manner; the plurality of the fourth steam-water separators are internally provided with second liquid level meters, and a plurality of third automatic regulating valves are also arranged between the fourth steam-water separators and the second steam-water separators and are respectively in signal connection with the plurality of second liquid level meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320146144.2U CN219547430U (en) | 2023-02-02 | 2023-02-02 | Steam condensate water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320146144.2U CN219547430U (en) | 2023-02-02 | 2023-02-02 | Steam condensate water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219547430U true CN219547430U (en) | 2023-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320146144.2U Active CN219547430U (en) | 2023-02-02 | 2023-02-02 | Steam condensate water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219547430U (en) |
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2023
- 2023-02-02 CN CN202320146144.2U patent/CN219547430U/en active Active
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