CN214998468U - Boiler water circulating pump seals water system based on temperature control - Google Patents
Boiler water circulating pump seals water system based on temperature control Download PDFInfo
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- CN214998468U CN214998468U CN202120927015.8U CN202120927015U CN214998468U CN 214998468 U CN214998468 U CN 214998468U CN 202120927015 U CN202120927015 U CN 202120927015U CN 214998468 U CN214998468 U CN 214998468U
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- 238000007789 sealing Methods 0.000 claims abstract description 138
- 239000000498 cooling water Substances 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 24
- 241000283216 Phocidae Species 0.000 description 33
- 238000012423 maintenance Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000008400 supply water Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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Abstract
The utility model discloses a boiler water circulating pump sealing water system based on temperature control, which comprises a sealing water cooler, a high-pressure boiler water inlet communicated with the sealing water cooler, a boiler water circulating pump mechanical sealing mechanism, a cooling water inlet for inputting cooling water and a cooling water outlet; a flow regulating unit for regulating the water flow of the high-pressure boiler is arranged between the water inlet of the high-pressure boiler and the sealing water cooler; a thermometer of the mechanical sealing mechanism of the boiler water circulating pump for measuring and monitoring the temperature of the sealing cooling water output from the sealing water cooler to the mechanical sealing mechanism of the boiler water circulating pump is connected between the mechanical sealing mechanism of the boiler water circulating pump and the sealing water cooler; the utility model provides a sealed incrustation scale of current boiler water circulating pump easily in the inside deposit of each department of mechanical seal, sealing rubber circle can appear high temperature deformation and lead to the easy inefficacy of mechanical seal, staff need frequently overhaul and operating stability and the poor problem of security, have the practicality.
Description
Technical Field
The embodiment of the utility model belongs to the technical field of boiler water cyclic utilization system, more specifically relates to a boiler water circulating pump seals water system based on temperature control.
Background
Boiler water circulation refers to the circulation flow of a water and steam-water mixture in an evaporation heating surface of a boiler and is divided into natural circulation and forced circulation. Natural circulation refers to circulation maintained by the difference in density of water and steam-water mixture; forced circulation refers to circulation maintained by means of a head of a water pump in the circuit. Normal water circulation can ensure timely and reliable cooling of the evaporation heating surface of the boiler, and is one of basic conditions for safe operation of the boiler.
The water circulating system of the drum boiler of the water-cooled wall gasification furnace adopts a boiler water circulating pump to forcibly circulate, and plays a role in protecting the shell of the gasification furnace through heat exchange. The sealing of the boiler water circulating pump adopts a self-sealing form, sealing water is taken out from the back of the impeller and enters the mechanical seal after being cooled, the mechanical seal in the pump is cooled and lubricated, but the sealing water cannot flow in a standby state of the pump, the water pressure in the pump is 7.0Mpa, the temperature is 285 ℃, the mechanical sealing rubber O-shaped ring deforms at high temperature, scale is easy to scale at the mechanical seal, the pump can not be moved in severe cases, so that the sealing is invalid, a medium leaks, and a large amount of high-temperature high-pressure boiler water is sprayed and vaporized when the sealing leaks, so that a scalding risk factor exists; frequent leakage of the mechanical seal requires switching to give out for maintenance, and the workload of operators and maintenance is increased; under the maintenance state, the boiler water circulating pump does not have the pump of being equipped with, and the operation pump breaks down again can cause the gasifier to park, has reduced the stability and the security of system operation.
Therefore, a boiler water circulation sealing water system which can conveniently monitor the temperature of sealing water is urgently needed, so that water scales are not easy to deposit at all positions inside a mechanical seal, a sealing rubber ring cannot deform at high temperature, the mechanical seal is not easy to lose efficacy, a worker does not need to frequently overhaul, and the operation stability and the safety are high.
SUMMERY OF THE UTILITY MODEL
To the above defect or improvement demand of prior art, the utility model provides a boiler water circulating pump seals water system based on temperature control, supply water through adopting high pressure boiler water header, cancel traditional pump self sealss pipeline, let in behind the sealed water cooler with high pressure boiler water, get into boiler water circulating pump mechanical seal mechanism after cooling to the uniform temperature with the cooling water heat transfer in the sealed water cooler, adjust the flow of high pressure boiler water through control flow regulating unit, and then get into the temperature of boiler water circulating pump mechanical seal mechanism 3 behind the control boiler water cooling, make no matter the pump seals the water cooler at running state or at standby state, all have 0.3-0.5m3H (preferably 0.5 m)3The water cooling seal of the low-temperature high-pressure seal of the/h), under the effect of low-temperature flowing water, the incrustation scale is not easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can not occur, the normal use of the mechanical seal can be ensured, the problem that the existing boiler water circulating pump is sealed in a self-sealing mode is solved, under the standby state of the pump, the incrustation scale is easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can occur, the mechanical seal is easy to lose efficacy, the working personnel need to frequently overhaul and the problems of poor operation stability and safety are solved, and the water cooling seal has high practicability.
In order to achieve the purpose, the utility model provides a boiler water circulating pump sealing water system based on temperature control, which comprises a sealing water cooler for cooling sealing water, a high-pressure boiler water inlet communicated with the sealing water cooler and used for inputting high-pressure boiler water, a boiler water circulating pump mechanical sealing mechanism, a cooling water inlet used for inputting cooling water and a cooling water outlet; wherein,
a flow regulating unit for regulating the input flow of the high-pressure boiler water is arranged between the high-pressure boiler water inlet and the sealing water cooler;
a temperature meter of the mechanical sealing mechanism of the boiler water circulating pump, which is used for monitoring the temperature of the sealing cooling water output from the sealing water cooler to the mechanical sealing mechanism of the boiler water circulating pump, is connected between the mechanical sealing mechanism of the boiler water circulating pump and the sealing water cooler;
and the flow regulating unit is used for regulating the numerical value of the thermometer of the mechanical sealing mechanism of the boiler water circulating pump, so that the normal use of the mechanical sealing mechanism of the boiler water circulating pump is ensured.
Further, the flow regulating unit comprises a high-pressure boiler water inlet stop valve and a high-pressure boiler water inlet gate valve which are sequentially connected between the high-pressure boiler water inlet and the sealing water cooler.
Further, the flow regulating unit also comprises a rotor flow meter connected between the high-pressure boiler water inlet stop valve and the high-pressure boiler water inlet gate valve; and adjusting the display numerical value of the rotor flowmeter through the opening degrees of the high-pressure boiler water inlet stop valve and the high-pressure boiler water inlet gate valve.
Furthermore, the input end of the high-pressure boiler water inlet stop valve and the output end of the high-pressure boiler water inlet gate valve are also connected with a high-pressure boiler water inlet secondary line valve.
Furthermore, a cold boiler water machine seal stop valve and a cold boiler water machine seal gate valve are sequentially connected between the boiler water circulating pump mechanical sealing mechanism and the seal water cooler.
Further, the temperature meter of the mechanical sealing mechanism of the boiler water circulating pump is arranged between the cold boiler water mechanical sealing gate valve and the sealing water cooler.
Furthermore, a cooling water inlet gate valve is connected between the sealing water cooler and the cooling water inlet.
Further, a cooling water outlet gate valve is connected between the sealing water cooler and the cooling water outlet.
Furthermore, a cooling water secondary line small valve is connected between the output end of the cooling water inlet gate valve and the output end of the cooling water outlet gate valve.
Further, the pressure cookerThe flow of the furnace water input into the sealed water cooler is 0.5m3H; the temperature of the cooling sealing water input from the sealing water cooler to the mechanical sealing mechanism of the boiler water circulating pump is 50 ℃.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
(1) the utility model discloses a boiler water circulating pump seals water system based on temperature control, the utility model discloses an adopt high-pressure boiler water main to supply water, cancel traditional pump self sealss pipeline, let in behind the sealed water cooler with high-pressure boiler water, get into boiler water circulating pump mechanical seal mechanism after cooling to the uniform temperature with the cooling water heat transfer in the sealed water cooler, adjust the flow of high-pressure boiler water through the control flow control unit, and then the control boiler gets into boiler water circulating pump mechanical seal mechanism entry temperature behind the sealed water cooler cooling, make no matter the pump seals the water cooler at running state or in standby state, all have 0.3m3/h-0.5m3H (preferably 0.5 m)3The water cooling seal of the low-temperature high-pressure seal of the/h), under the effect of low-temperature flowing water, the incrustation scale is not easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can not occur, the normal use of the mechanical seal can be ensured, the problem that the existing boiler water circulating pump is sealed in a self-sealing mode is solved, under the standby state of the pump, the incrustation scale is easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can occur, the mechanical seal is easy to lose efficacy, the working personnel need to frequently overhaul and the problems of poor operation stability and safety are solved, and the water cooling seal has high practicability.
(2) The utility model discloses a boiler water circulating pump seals water system based on temperature control connects rotameter through between high pressure boiler water inlet stop valve and the high pressure boiler water inlet gate valve at flow control unit. Boiler water circulating pump mechanical seal mechanism thermometer of cooling sealing water temperature who monitors from sealed water cooler output to boiler water circulating pump mechanical seal mechanism between boiler water circulating pump mechanical seal mechanism and sealed water cooler, the demonstration numerical value through the aperture adjustment rotor flow meter of high-pressure boiler water inlet stop valve and high-pressure boiler water inlet gate valve, and then the numerical value of control boiler water circulating pump mechanical seal mechanism thermometer, make its control make the sealing rubber circle high temperature deformation appear in the high temperature that can prevent cooling sealing water, the incrustation scale is in the inside each deposit of mechanical seal, and then can ensure in the circulating pump mechanical seal's the normal use within range, moreover, the steam generator is simple in structure, low cost, high practicability.
(3) The utility model discloses a boiler water circulating pump sealing water system based on temperature control, which is characterized in that a high-pressure boiler water inlet auxiliary line valve is connected with the input end of a high-pressure boiler water inlet stop valve and the output end of a high-pressure boiler water inlet gate valve; when rotor flow meter broke down, closed high pressure boiler water inlet stop valve and high pressure boiler water inlet gate valve to open high pressure boiler water inlet auxiliary line valve, can guarantee that sealed water cooler has high pressure boiler water to get into, and then guarantee that mechanical seal can normal operation simple structure in the boiler water circulating pump, the practicality is high.
(4) The utility model discloses a boiler water circulating pump sealing water system based on temperature control, which is characterized in that a cooling water secondary line small valve is connected between the output end of a cooling water inlet gate valve and the output end of a cooling water outlet gate valve; when the sealed water cooler is cut out and overhauled in cold seasons, the small valve of the cooling water secondary line is opened under the condition that the cooling water inlet gate valve and the cooling water outlet gate valve are closed, the cooling water circulation with small flow can be kept in the pipeline, the pipeline can be prevented from freezing, the structure is simple, and the practicability is high.
Drawings
Fig. 1 is the embodiment of the utility model provides a boiler water circulating pump seals up schematic diagram of water system based on temperature control.
In all the figures, the same reference numerals denote the same features, in particular: 1-sealing water cooler, 2-high pressure boiler water inlet, 21-high pressure boiler water inlet stop valve, 22-rotor flow meter, 23-high pressure boiler water inlet gate valve, 24-high pressure boiler water inlet secondary line valve, 3-boiler water circulating pump mechanical sealing mechanism, 31-cold boiler water removing machine sealing stop valve, 32-cold boiler water removing machine sealing gate valve, 33-cooling water outlet thermometer, 4-cooling water inlet, 41-cooling water inlet gate valve, 5-cooling water outlet and 51-cooling water outlet gate valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in FIG. 1The utility model provides a boiler water circulating pump sealing water system based on temperature control, which comprises a sealing water cooler 1 for cooling sealing water, a high-pressure boiler water inlet 2 communicated with the sealing water cooler 1 and used for inputting high-pressure boiler water, a boiler water circulating pump mechanical sealing mechanism 3, a cooling water inlet 4 used for inputting cooling water and a cooling water outlet 5; a flow regulating unit for regulating the input flow of the high-pressure boiler water is arranged between the high-pressure boiler water inlet 2 and the sealing water cooler 1; a boiler water circulating pump mechanical sealing mechanism thermometer 33 for monitoring the temperature of the sealing cooling water output from the sealing water cooler 1 to the boiler water circulating pump mechanical sealing mechanism 3 is connected between the boiler water circulating pump mechanical sealing mechanism 3 and the sealing water cooler 1; the value of a thermometer 33 of the mechanical sealing mechanism of the boiler water circulating pump is adjusted through the flow adjusting unit, so that the normal use of the mechanical seal of the mechanical sealing mechanism 3 of the boiler water circulating pump is ensured; the utility model discloses an adopt high pressure boiler water main to supply water, cancel traditional pump self sealss pipeline, after letting in sealed water cooler with high pressure boiler water, get into boiler water circulating pump mechanical seal mechanism after cooling to the uniform temperature with the cooling water heat transfer cooling in the sealed water cooler, adjust the flow of high pressure boiler water through the control flow regulating unit, and then the control boiler gets into boiler water circulating pump mechanical seal mechanism entry temperature behind the sealed water cooler cooling of warp, make no matter the pump seals the water cooler at running state or at the stand-by state, all there is 0.3m3/h-0.5m3H (preferably 0.5 m)3The water cooling seal of the low-temperature high-pressure seal of the/h), under the effect of low-temperature flowing water, the incrustation scale is not easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can not occur, the normal use of the mechanical seal can be ensured, the problem that the existing boiler water circulating pump is sealed in a self-sealing mode is solved, under the standby state of the pump, the incrustation scale is easy to deposit in all places in the mechanical seal, the high-temperature deformation of the sealing rubber ring can occur, the mechanical seal is easy to lose efficacy, the working personnel need to frequently overhaul and the problems of poor operation stability and safety are solved, and the water cooling seal has high practicability.
Further, as shown in fig. 1, the flow rate adjusting unit includes a high-pressure boiler water inlet stop valve 21 and a high-pressure boiler water inlet gate valve 23 sequentially connected between the high-pressure boiler water inlet 2 and the seal water cooler 1; the flow regulating unit also comprises a rotor flow meter 22 connected between the high-pressure boiler water inlet stop valve 21 and the high-pressure boiler water inlet gate valve 23; the rotameter 22 is used for controlling the flow of the low-temperature high-pressure boiler water input from the high-pressure boiler water inlet to the seal water cooler, and further controlling the temperature of the cooling seal water output from the seal water cooler 1 to the boiler water circulating pump mechanical seal mechanism 3; when the high-pressure boiler water works normally, the high-pressure boiler water sequentially passes through the high-pressure boiler water inlet stop valve 21, the rotor flow meter 22 and the high-pressure boiler water inlet gate valve 23 and is input into the sealing water cooler 1; the display numerical value of the rotor flow meter 22 is adjusted through the opening degrees of the high-pressure boiler water inlet stop valve 21 and the high-pressure boiler water inlet gate valve 23, so that the numerical value of a thermometer 33 of a mechanical sealing mechanism of the boiler water circulating pump is controlled, the temperature of the cooling sealing water can be prevented from being too high, the sealing rubber ring is enabled to be deformed at high temperature, water scales are deposited at each position inside the mechanical seal, and the normal use range of the mechanical seal in the circulating pump can be further ensured.
Further, as shown in fig. 1, the input end of the high-pressure boiler water inlet stop valve 21 and the output end of the high-pressure boiler water inlet gate valve 23 are also connected with a high-pressure boiler water inlet secondary line valve 24; when the rotameter 22 breaks down, the high-pressure boiler water inlet stop valve 21 and the high-pressure boiler water inlet gate valve 23 are closed, and the high-pressure boiler water inlet secondary line valve 24 is opened, so that the sealing water cooler 1 is ensured to have high-pressure boiler water to enter, and the normal operation of the mechanical seal in the boiler water circulating pump is ensured.
Further, as shown in fig. 1, a cold boiler water mechanical seal stop valve 31, a cold boiler water mechanical seal gate valve 32 and a boiler water circulation pump mechanical seal mechanism thermometer 33 are sequentially connected between the boiler water circulation pump mechanical seal mechanism 3 and the seal water cooler 1; the boiler water circulation pump mechanical sealing mechanism thermometer 33 is used for monitoring the temperature of the sealing cooling water output from the sealing water cooler 1 to the boiler water circulation pump mechanical sealing mechanism 3, the temperature is usually required to be maintained at 30-50 ℃ (preferably 50 ℃), and the sealing water flow is adjusted by adjusting the high-pressure boiler water inlet stop valve 21 and the high-pressure boiler water inlet gate valve 23 so as to adjust the temperature of the sealing water at 30-50 ℃ (preferably 50 ℃); specifically, the high-pressure boiler water inlet stop valve is adjusted to be fully opened, the high-pressure boiler water inlet gate valve is slightly opened, and the valve position is kept still after the sealing water temperature is adjusted to be 30-50 ℃ (preferably 50 ℃), so that the mechanical seal rubber ring cannot be softened and deformed.
Further, as shown in fig. 1, a cooling water inlet gate valve 41 is connected between the sealing water cooler 1 and the cooling water inlet 4; a cooling water outlet gate valve 51 is connected between the sealing water cooler 1 and the cooling water outlet 5; when the cooling water cooler works, the cooling water inlet gate valve and the cooling water outlet gate valve are firstly opened, so that cooling water is input into the sealing water cooler 1 through the cooling water inlet gate valve, and is output to the cooling water outlet through the cooling water outlet gate valve after being output from the sealing water cooler 1, and then the operation of the cooling water in the sealing water cooler is completed.
Further, as shown in fig. 1, a cooling water secondary line small valve 42 is connected between the output end of the cooling water inlet gate valve 41 and the output end of the cooling water outlet gate valve 51; when the sealed water cooler is cut out for maintenance in cold seasons, the small cooling water bypass valve 42 is opened with the cooling water inlet gate valve and the cooling water outlet gate valve 51 closed to keep a small flow of cooling water flowing in the pipeline to prevent the pipeline from freezing.
The utility model provides a pair of boiler water circulating pump seals theory of operation and flow of water system based on temperature control: the sealing water of the utility model is supplied by the water main of the high-pressure boiler, and the pump self-sealing pipeline is cancelled; when the boiler water circulating pump sealing water system is put into operation, the cooling water secondary line small valve 42 and the high-pressure boiler water inlet secondary line valve 24 are closed, and the cooling water inlet gate valve 41 and the cooling water outlet gate valve 51 are opened, so that cooling water is introduced into the sealing water cooler 1; then opening a gate valve for removing machine seal of cold boiler water, a stop valve for removing machine seal of cold boiler water, a gate valve for water inlet of high-pressure boiler and a stop valve for water inlet of high-pressure boiler, introducing high-pressure boiler water into the sealed water cooler, and adjusting the high-pressure boiler waterThe opening degree of the boiler water inlet gate valve and the high-pressure boiler water inlet stop valve enables the flow of the rotameter to be displayed as 0.5m 3/h; high-pressure boiler water enters the sealing water cooler, then is merged with cooling water, exchanges heat and is cooled, and then is output to the mechanical sealing mechanism of the boiler water circulating pump; in the process, the flow of sealing water is adjusted by adjusting a high-pressure boiler water inlet stop valve and a high-pressure boiler water inlet gate valve so as to adjust the temperature of the sealing water, so that the temperature of a cold boiler water (sealing water) inlet seal outlet is 30-50 ℃ (preferably 50 ℃); cooling boiler water of 8.5-10.0Mpa (preferably 8.5Mpa) to 30-50 deg.C (preferably 50 deg.C) by pump sealing water cooler, and mechanically sealing, wherein the pump has a diameter of 0.3m in running state or standby state3/h-0.5m3H (preferably 0.5 m)3The sealing rubber O-shaped ring does not deform at high temperature, and the normal use of the mechanical seal can be ensured; the maintenance is needed once every 3-4 days before the transformation, the failure of mechanical seal caused by high-temperature deformation and scaling of the sealing rubber O-shaped ring is basically eliminated after the transformation, the maintenance workload and the use of spare parts are greatly reduced, and the stability and the safety of the system operation are improved.
It should be noted that the term "low temperature" in the present invention means 30-50 deg.C; the high pressure is 8.5-10.0 MPa.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (10)
1. The utility model provides a boiler water circulating pump seals water system based on temperature control which characterized in that: the device comprises a sealing water cooler (1) for cooling sealing water, a high-pressure boiler water inlet (2) communicated with the sealing water cooler (1) and used for inputting high-pressure boiler water, a boiler water circulating pump mechanical sealing mechanism (3), a cooling water inlet (4) used for inputting cooling water and a cooling water outlet (5); wherein,
a flow regulating unit for regulating the input flow of the high-pressure boiler water is arranged between the high-pressure boiler water inlet (2) and the sealing water cooler (1);
a boiler water circulating pump mechanical sealing mechanism thermometer (33) for monitoring the temperature of the sealing cooling water output from the sealing water cooler (1) to the boiler water circulating pump mechanical sealing mechanism (3) is connected between the boiler water circulating pump mechanical sealing mechanism (3) and the sealing water cooler (1);
the flow regulating unit is used for regulating the numerical value of a thermometer (33) of the mechanical sealing mechanism of the boiler water circulating pump, so that the normal use of the mechanical sealing mechanism (3) of the boiler water circulating pump is ensured.
2. The boiler water circulating pump sealed water system based on temperature control as claimed in claim 1, wherein: the flow regulating unit comprises a high-pressure boiler water inlet stop valve (21) and a high-pressure boiler water inlet gate valve (23) which are sequentially connected between the high-pressure boiler water inlet (2) and the sealing water cooler (1).
3. The boiler water circulating pump sealed water system based on temperature control as claimed in claim 2, characterized in that: the flow regulating unit also comprises a rotor flow meter (22) connected between the high-pressure boiler water inlet stop valve (21) and the high-pressure boiler water inlet gate valve (23); and the display numerical value of the rotor flow meter (22) is adjusted through the opening degrees of the high-pressure boiler water inlet stop valve (21) and the high-pressure boiler water inlet gate valve (23).
4. The boiler water circulating pump sealing water system based on temperature control as claimed in claim 3, characterized in that: the input end of the high-pressure boiler water inlet stop valve (21) and the output end of the high-pressure boiler water inlet gate valve (23) are also connected with a high-pressure boiler water inlet secondary line valve (24).
5. Boiler water circulation pump seal water system based on temperature control according to any one of claims 1-4, characterized in that: and a cold boiler water machine-sealing stop valve (31) and a cold boiler water machine-sealing gate valve (32) are sequentially connected between the boiler water circulating pump mechanical sealing mechanism (3) and the sealing water cooler (1).
6. The boiler water circulating pump sealing water system based on temperature control as claimed in claim 5, characterized in that: the boiler water circulating pump mechanical sealing mechanism thermometer (33) is arranged between the cold boiler water machine-going sealing gate valve (32) and the sealing water cooler (1).
7. Boiler water circulation pump seal water system based on temperature control according to any one of claims 1-4 or 6, characterized in that: and a cooling water inlet gate valve (41) is connected between the sealing water cooler (1) and the cooling water inlet (4).
8. The boiler water circulating pump sealing water system based on temperature control as claimed in claim 7, wherein: and a cooling water outlet gate valve (51) is connected between the sealing water cooler (1) and the cooling water outlet (5).
9. The boiler water circulating pump sealed water system based on temperature control as claimed in claim 8, wherein: and a cooling water secondary line small valve (42) is connected between the output end of the cooling water inlet gate valve (41) and the output end of the cooling water outlet gate valve (51).
10. A temperature control based boiler water circulation pump sealed water system according to any one of claims 1-4, 6, 8 or 9, characterized in that: the flow of the high-pressure boiler water input into the sealing water cooler (1) is 0.5m3H; the temperature of the cooling sealing water input from the sealing water cooler (1) to the boiler water circulating pump mechanical sealing mechanism (3) is 50 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120927015.8U CN214998468U (en) | 2021-04-30 | 2021-04-30 | Boiler water circulating pump seals water system based on temperature control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120927015.8U CN214998468U (en) | 2021-04-30 | 2021-04-30 | Boiler water circulating pump seals water system based on temperature control |
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| CN214998468U true CN214998468U (en) | 2021-12-03 |
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| CN202120927015.8U Active CN214998468U (en) | 2021-04-30 | 2021-04-30 | Boiler water circulating pump seals water system based on temperature control |
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