An emergency water replenishing system for a drum boiler

Abstract

The present application relates to the technical field of drum water replenishment, and discloses an emergency water replenishment system for a drum boiler, which comprises a drum part, a constant-pressure emergency water replenishment part, and a dirt filtering part; the drum part comprises a drum, a pipeline assembly connected to a water inlet end of the drum, and a heating assembly installed on the pipeline assembly and used for heating water flowing through the pipeline assembly; the constant-pressure emergency water replenishment part comprises an emergency water replenishment tank, a flowing water treatment assembly connected to a water outlet end of the emergency water replenishment tank, and an emergency water replenishment assembly installed on the water outlet end of the flowing water treatment assembly; the dirt filtering part is connected between the emergency water replenishment assembly and the pipeline assembly and used for filtering dirt in flowing water; a communication pipe is arranged between the drum and the emergency water replenishment tank to maintain pressure balance between the drum and the emergency water replenishment tank; an emergency constant-pressure water pump is arranged on the emergency water replenishment tank; when the water level in the drum is low, water can be supplied to the drum to maintain the water level in the drum stable, and the boiler does not need to be stopped, thereby reducing unnecessary economic losses and avoiding the risk of boiler explosion caused by water shortage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drum water replenishment, in particular to an emergency water replenishment system for a drum boiler. BACKGROUND

[0002] Drum boilers still account for a large proportion in the field of power and heat supply, and for drum boilers, the stability of the drum water level is an important factor affecting the safe operation of the boiler.

[0003] At present, the relevant design and operation procedures of drum boilers more consider the emergency plan in the case of high drum water level, and lack a design plan that can continue to maintain the normal water level and extend the troubleshooting time when the drum water level is low and the feedwater equipment is temporarily faulty. Therefore, most drum boilers will be shut down for treatment when facing the above-mentioned situation, and more energy is consumed after restarting after shutdown, and the work progress is also delayed. SUMMARY

[0004] In view of the above-mentioned problems existing in the prior art emergency water replenishment system for drum boilers, the present application is proposed.

[0005] Therefore, the present application aims to provide an emergency water replenishment system for a drum boiler.

[0006] To solve the above-mentioned technical problems, the present application provides the following technical scheme: an emergency water replenishment system for a drum boiler, comprising:

[0007] A drum part, comprising a drum, a pipeline assembly connected to the water inlet end of the drum, and a heating assembly installed on the pipeline assembly for heating the water flowing through the pipeline assembly;

[0008] A constant pressure emergency water replenishment part, comprising an emergency water replenishment tank, a flow water treatment assembly connected to the water return / outlet end of the emergency water replenishment tank at both ends, and an emergency water replenishment assembly installed at the water outlet end of the flow water treatment assembly;

[0009] A dirt filtering part connected between the emergency water replenishment assembly and the pipeline assembly for filtering dirt in the flowing water, comprising a filtering assembly and a flushing assembly provided on the filtering assembly.

[0010] As a preferred scheme of the emergency water replenishment system for a drum boiler, the pipeline assembly comprises a pipeline one connected to the water inlet end of the drum, a pipeline two connected to the other end of the pipeline one, and a pipeline three connected in parallel to the pipeline two, the pipeline three and the pipeline two are both provided with a valve group one, and the pipeline two is provided with an adjusting valve.

[0011] As a preferred scheme of the emergency water replenishment system for a drum boiler, the heating assembly comprises an economizer installed on the pipeline one and a heater one and a heater two connected in series on the pipeline two.

[0012] As a preferred scheme of the emergency water replenishing system of the drum boiler, the flowing water treatment assembly comprises an oxygen removal and temperature adjusting device connected to the water outlet end of the emergency water replenishing tank and a backflow device installed at the water backflow end of the emergency water replenishing tank.

[0013] As a preferred scheme of the emergency water replenishing system of the drum boiler, the oxygen removal and temperature adjusting device comprises a water outlet pipe, an oxygen remover is installed at the other end of the water outlet pipe, and a valve group three is arranged on the water outlet pipe, a branch pipe one is communicated with the bottom end of the oxygen remover, a water outlet pump is arranged on the branch pipe one, a branch pipe two is communicated with the upper end of the oxygen remover, the other end of the branch pipe two is communicated with the water outlet end of the branch pipe one, and a valve group four is arranged on the branch pipe two.

[0014] The backflow device comprises a backflow pipe and a valve group five installed on the backflow pipe.

[0015] As a preferred scheme of the emergency water replenishing system of the drum boiler, the emergency water replenishing assembly comprises an emergency conveying pipe, the emergency conveying pipe is communicated with the bottom of the emergency water replenishing tank, and an emergency constant pressure water pump and an emergency water draining valve are connected in series on the emergency conveying pipe.

[0016] As a preferred scheme of the emergency water replenishing system of the drum boiler, the filter assembly comprises a hollow tank, two joint pipes are respectively communicated with the two ends of the hollow tank, a flow meter is arranged on each of the two joint pipes, filter pipes are equidistantly arranged in the hollow tank, a column block is arranged at the center of the hollow tank, a fixing sleeve fixed with the filter pipes is fixedly connected to the outer periphery of the column block, a transmission rod is fixed to one side of the column block, the other end of the transmission rod penetrates through the hollow tank, and an angular motor for driving the transmission rod to rotate is installed at one end of the hollow tank.

[0017] As a preferred scheme of the emergency water replenishing system of the drum boiler, the flushing assembly comprises an air pipe communicated with one end of the filter assembly and a blowdown pipe communicated with the other end of the filter assembly, and the other end of the air pipe is communicated with the low-pressure air outlet end of the drum.

[0018] As a preferred scheme of the emergency water replenishing system of the drum boiler, the anti-wave part is further arranged in the emergency water replenishing tank to reduce water surface fluctuation.

[0019] As a preferred scheme of the emergency water replenishing system of the drum boiler, the anti-wave part comprises a horizontal plate fixed in the emergency water replenishing tank, flow-through holes one are equidistantly arranged on the surface of the horizontal plate, vertical plates are equidistantly fixedly penetrated through the surface of the horizontal plate, flow-through holes two are equidistantly arranged on the surface of the vertical plates below the horizontal plate, and guide plates are fixedly arranged on the upper surface of the horizontal plate and between adjacent two vertical plates.

[0020] The application has the advantages that the connecting pipe is arranged between the steam side of the steam drum and the emergency water supply tank to maintain pressure balance with the steam drum, the emergency constant pressure water pump is arranged on the emergency water supply tank, water can be supplied to the steam drum when the water level of the steam drum is low to maintain the water level of the steam drum stable, the furnace is not needed to be stopped, unnecessary economic loss is reduced, safety protection is improved, and the danger of furnace explosion caused by water shortage is avoided;

[0021] The dirt filtering part filters dirt in the emergency water supply to avoid the problem that dirt enters the steam drum to cause blockage, the flow before and after is monitored to determine whether cleaning is needed, the cleaning method is simple, the machine is not needed to be stopped, the working efficiency is effectively improved, and the use experience of the operator is improved;

[0022] The wave prevention part can reduce the rising of splashes when water is supplied or circulated to ensure the stability of the water surface, improve the accuracy of water level monitoring, avoid the problem that the water supply is insufficient due to monitoring error, and improve the effectiveness and safety of water supply. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort. Among them:

[0024] Figure 1 It is a whole structure schematic view of the steam drum boiler emergency water supply system of the application.

[0025] Figure 2 It is a structure schematic view of the steam drum part in the steam drum boiler emergency water supply system of the application.

[0026] Figure 3 It is a structure schematic view of the constant pressure emergency water supply part in the steam drum boiler emergency water supply system of the application.

[0027] Figure 4 It is a structure schematic view of the dirt filtering part in the steam drum boiler emergency water supply system of the application.

[0028] Figure 5 It is a structure schematic view of the filtering assembly in the steam drum boiler emergency water supply system of the application.

[0029] Figure 6 It is an enlarged structure schematic view of A in the steam drum boiler emergency water supply system of the application. Figure 5

[0030] Figure 7 It is a structure schematic view of the wave prevention part in the steam drum boiler emergency water supply system of the application.

[0031] ​Figure 8 For the present application Figure 7 Enlarged structure diagram of B in the present application. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in other different manners than those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0034] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or selected from other embodiments.

[0035] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0036] Embodiment 1

[0037] Referring to Figure 1 , a schematic diagram of the overall structure of an emergency water replenishing system of a drum boiler is provided, as shown in Figures 1-3 An emergency water replenishing system of a drum boiler, comprising:

[0038] A drum part 100, comprising a drum 101, a pipeline assembly 102 connected to the water inlet end of the drum 101, and a heating assembly 103 installed on the pipeline assembly 102 for heating the water source flowing inside the pipeline assembly 102;

[0039] A constant pressure emergency water replenishing part 200, comprising an emergency water replenishing tank 201, a flowing water treatment assembly 202 connected to the water return / outlet ends of the emergency water replenishing tank 201 at both ends, and an emergency water replenishing assembly 203 installed at the water outlet end of the flowing water treatment assembly 202;

[0040] Further, the pipeline assembly 102 comprises a pipeline one 102a connected to the water inlet end of the steam drum 101, a pipeline two 102b connected to the other end of the pipeline one 102a, and a pipeline three 102c connected in parallel to the pipeline two 102b, and the pipeline three 102c and the pipeline two 102b are both provided with a valve group one 102d, and the pipeline two 102b is provided with an adjusting valve 102e.

[0041] Specifically, the valve group one 102d is two groups, one group is installed on the pipeline three 102c and the other group is installed on the pipeline two, and the two groups are in parallel, the adjusting valve 102e is opened when water is supplied, and the water source flows through, the water supply is adjusted according to the requirement to open and close the two groups of valve one 102d, when the valve group one 102d installed on the pipeline two 102b is opened, at this time the water source directly enters the steam drum 101 through the pipeline one 102a, when the valve group one 102d installed on the pipeline three 102c is opened, the water source enters the pipeline one 102a through the pipeline three 102c, and then supplements the steam drum 101, when the two groups of valve one 102d are opened at the same time, the water source will flow through the pipeline two 102b and the pipeline three 102c at the same time, enter the pipeline one 102a, can control the flow of water source, at the same time can realize the maintenance without stopping.

[0042] Further, the heating assembly 103 comprises an economizer 103a installed on the pipeline one 102a and a heater one 103b and a heater two 103c connected in series on the pipeline two 102b, when water is supplied, the water source enters the heater two 103c, the heater one 103b and the economizer 103a in sequence, and the water source is added so that the temperature of the added water source and the water source in the steam drum 101 are in the same temperature range.

[0043] Further, the flowing water treatment assembly 202 comprises an oxygen removal temperature adjusting piece 202a connected to the water outlet end of the emergency water supplement tank 201 and a backflow piece 202b installed on the water return end of the emergency water supplement tank 201.

[0044] Further, the oxygen removal temperature adjusting piece 202a comprises a water outlet pipe 202a-1, the other end of the water outlet pipe 202a-1 is provided with an oxygen remover 202a-2, and the water outlet pipe 202a-1 is provided with a valve group three 202a-3, the bottom end of the oxygen remover 202a-2 is communicated with a branch pipe one 202a-4, the branch pipe one 202a-4 is provided with a water outlet pump 202a-5, the upper end of the oxygen remover 202a-2 is communicated with a branch pipe two 202a-6, the other end of the branch pipe two 202a-6 is communicated with the water outlet end of the branch pipe one 202a-4, and the branch pipe two 202a-6 is provided with a valve group four 202a-7.

[0045] The backflow piece 202b comprises a backflow pipe 202b-1 and a valve group five 202b-2 installed on the backflow pipe 202b-1.

[0046] Further, the emergency water replenishment assembly 203 comprises an emergency conveying pipe 203a which is communicated with the bottom of the emergency water replenishment tank 201, and the emergency conveying pipe 203a is provided with an emergency constant pressure water pump 203b and an emergency water drainage valve 203c in series.

[0047] Specifically, the emergency water replenishment tank 201 is provided with a liquid level sensor and a temperature sensor for monitoring the water source amount and the water temperature, and when circulating, the valve group three 202a-3 is opened, so that the water source in the emergency conveying pipe 203a is discharged through the water outlet pipe 202a-1 into the deaerator 202a-2 for deaeration, the branch pipe one 202a-4 and the return pipe 202b-1 are both communicated with the emergency conveying pipe 203a, and the deaerated water source enters the emergency conveying pipe 203a through the branch pipe one 202a-4 and then returns to the emergency water replenishment tank 201 through the return pipe 202b-1, so as to ensure that the water source in the emergency water replenishment tank 201 is deaerated, and at the same time, the temperature in the emergency water replenishment tank 201 can be reduced through circulation, and at the same time, if the valve group five 202b-2 is closed and the emergency water drainage valve 203c is opened, the function of automatic water replenishment can be realized.

[0048] Specifically, the emergency water replenishment tank 201 and the steam drum 101 are communicated through a communication pipe which is located above the emergency water replenishment tank 201 and the steam drum 101 and vertically penetrates the steam side of the emergency water replenishment tank 201 and the steam drum 101 at two ends, respectively, and through the communication, the pressure between the emergency water replenishment tank 201 and the steam drum 101 can be kept at the same value, when the equipment has a problem or the communication equipment has a delay, the water replenishment cannot be timely, and the steam drum 101 has a negative pressure due to the lack of water, at this time, the steam drum 101 has a negative pressure, the emergency constant pressure water pump 203b is opened, and the negative pressure can quickly suck the water source in the emergency water replenishment tank 201 to replenish the steam drum 101, so as to realize the timely and rapid water replenishment without stopping the furnace, reduce unnecessary losses, improve the safety protection, and avoid the danger of blowing up the furnace due to the lack of water.

[0049] Operation process: The emergency water replenishment tank 201 is provided with a liquid level sensor and a temperature sensor for monitoring the water source amount and the water temperature, and when circulating, the valve group three 202a-3 is opened, so that the water source in the emergency conveying pipe 203a is discharged through the water outlet pipe 202a-1 into the deaerator 202a-2 for deaeration, the branch pipe one 202a-4 and the return pipe 202b-1 are both communicated with the emergency conveying pipe 203a, and the deaerated water source enters the emergency conveying pipe 203a through the branch pipe one 202a-4 and then returns to the emergency water replenishment tank 201 through the return pipe 202b-1, so as to ensure that the water source in the emergency water replenishment tank 201 is deaerated, and at the same time, the temperature in the emergency water replenishment tank 201 can be reduced through circulation, and at the same time, if the valve group five 202b-2 is closed and the emergency water drainage valve 203c is opened, the function of automatic water replenishment can be realized.

[0050] The communication pipe is located above the emergency water supplement tank 201 and the steam drum 101, and vertically downward penetrates the emergency water supplement tank 201 and the steam drum 101 at two ends, so that the pressure between the emergency water supplement tank 201 and the steam drum 101 is the same value. When the equipment has a problem or communication equipment communication is delayed, water cannot be supplemented in time, the steam drum 101 is under negative pressure due to water shortage, the steam drum 101 is under negative pressure at this time, the emergency constant pressure water pump 203b is opened, and the negative pressure rapidly sucks the water source in the emergency water supplement tank 201 to supplement the steam drum 101, so that the water can be supplemented in time and quickly without stopping the furnace, unnecessary losses are reduced, safety protection is improved, and the danger of furnace explosion caused by water shortage is avoided.

[0051] The adjusting valve 102e is opened when water is introduced, the water source flows, and the opening and closing of the two valve groups 102d are adjusted according to the demand. When the valve group 102d installed on the pipeline two 102b is opened, the water source directly enters the steam drum 101 through the pipeline one 102a at this time. When the valve group 102d installed on the pipeline three 102c is opened, the water source enters the pipeline one 102a through the pipeline three 102c and then supplements the steam drum 101. When the two valve groups 102d are opened at the same time, the water source flows through the pipeline two 102b and the pipeline three 102c at the same time and enters the pipeline one 102a, so that the flow of the water source can be controlled, and the maintenance can be realized without stopping the machine.

[0052] Embodiment 2

[0053] Reference Figures 4-6 The difference between this embodiment and the first embodiment is that the steam drum boiler emergency water supplement system further comprises a dirt filtering part 300 connected between the emergency water supplement assembly 203 and the pipeline assembly 102 for filtering dirt in the flowing water source, which comprises a filtering assembly 301 and a flushing assembly 302 arranged on the filtering assembly 301.

[0054] Further, the filtering assembly 301 comprises a hollow tank 301a, two joint pipes 301b are communicated at two ends of the hollow tank 301a respectively, a flow meter 301c is arranged on each of the two joint pipes 301b, filter pipes 301d are equidistantly arranged in the hollow tank 301a, a column block 301e is arranged at the center of the hollow tank 301a, a fixed sleeve 301f fixedly connected with the filter pipes 301d is fixedly connected to the outer periphery of the column block 301e, a transmission rod 301g is fixed to one side of the column block 301e, the other end of the transmission rod 301g penetrates the hollow tank 301a, and an angular motor 301h for driving the transmission rod 301g to rotate is arranged at one end of the hollow tank 301a.

[0055] Specifically, the filter pipe 301d is five in total, the angle between two adjacent filter pipes 301d is 72°, and the rotation angle of the angle motor 301h is also 72° each time, so as to ensure that the two ends of each filter pipe 301d are attached to the inner wall of the hollow tank 301a after each rotation, and the positions corresponding to the two joint pipes 301b are used to connect the two joint pipes 301b, so that the water discharged from the emergency conveying pipe 203a enters the filter pipe 301d through one of the joint pipes 301b, and the dirt and impurities discharged from the emergency conveying pipe 203a are filtered, and the two flow meters 301c measure the flow before and after entering the hollow tank 301a, so as to judge whether there is too much impurity in the filter pipe 301d, and facilitate timely cleaning and replacement. When cleaning, the machine can be stopped.

[0056] Further, the flushing assembly 302 includes a gas pipe 302a connected to one end of the filter assembly 301 and a blowdown pipe 302b connected to the other end of the filter assembly 301.

[0057] Specifically, the inner side of the hollow tank 301a is provided with through holes corresponding to the positions of the blowdown pipe 302b and the gas pipe 302a, and the two ends of one of the filter pipes 301d are attached to the hollow tank 301a and communicate with the two through holes.

[0058] Specifically, the other end of the gas pipe 302a is connected to the low-pressure gas outlet of the steam drum 101, and a gas valve is installed on the gas pipe 302a. After the gas valve is connected, the low-pressure gas in the steam drum 101 is transmitted through the gas pipe 302a and enters the filter pipe 301d, blowing the impurities in the filter pipe 301d, and the gas drives the water flow, which washes the filter pipe 301d. The impurities after washing are discharged from the blowdown pipe 302b, and a blowdown valve is installed on the blowdown pipe 302b to facilitate opening during use.

[0059] Specifically, the filter pipe 301d includes a cylinder body 301d-1, the two ends of the cylinder body 301d-1 are fixed with an attachment seat 301d-2, and filter holes one 301d-3 are equidistantly arranged on the surface of the cylinder body 301d-1, and a slag blocking cone 301d-4 is fixed at one end of the inside of the cylinder body 301d-1, and filter holes two 301d-5 are equidistantly arranged on the surface of the slag blocking cone 301d-4.

[0060] Specifically, the slag blocking cone 301d-4 is in a conical structure, and the top of the cone faces the water inlet end. This structure can effectively block dirt, and when water is flushed from the bottom of the cone, the dirt can be quickly discharged, improving the cleaning effect.

[0061] The remaining structures are the same as those of Example 1.

[0062] Operation process: the water discharged from the emergency conveying pipe 203a enters the filter pipe 301d through one of the joint pipes 301b, and the dirt and impurities discharged from the emergency conveying pipe 203a are filtered, two flow meters 301c measure the flow before and after entering the hollow tank 301a, and then judge whether the filter pipe 301d is too impure, so as to clean and replace in time, which can be done without stopping;

[0063] When replacing, the angle motor 301h operates to rotate 72°, and then drives the five filter pipes 301d to rotate 72° synchronously, so that the filter pipe 301d originally connected with the two joint pipes 301b moves to the position of the two through holes, the gas pipe 302a is provided with an exhaust valve, and after the exhaust valve is connected, the low-pressure gas in the steam drum 101 is transmitted through the gas pipe 302a and enters the filter pipe 301d, blows the impurities in the filter pipe 301d, and the gas drives the water source to flow, and the impurities after being washed are discharged from the blowdown pipe 302b. This structure can filter the dirt in the water, avoid the problem that the dirt enters the steam drum 101 and causes blockage, and through monitoring the flow before and after, it is judged whether cleaning is needed, the cleaning method is simple, no need to stop, effectively improve the work efficiency, improve the use experience of the operator.

[0064] Embodiment 3

[0065] Reference Figures 7-8 The difference between this embodiment and the above embodiments is that: in this embodiment, the steam drum boiler emergency water replenishing system further comprises a wave prevention part 400 installed in the emergency water replenishing tank 201 for reducing water surface fluctuation.

[0066] Further, the wave prevention part 400 comprises a horizontal plate 401 fixed in the emergency water replenishing tank 201, a flow-through hole one 402 is equidistantly arranged on the surface of the horizontal plate 401, and a vertical plate 403 is equidistantly fixed on the surface of the horizontal plate 401, a flow-through hole two 404 is equidistantly arranged on the surface of the vertical plate 403 below the horizontal plate 401, and a guide plate 405 is fixed on the upper surface of the horizontal plate 401 and between the adjacent two vertical plates 403.

[0067] Specifically, two rows of flow holes one 402 are arranged between the two adjacent longitudinal plates 403, and the guide plates 405 are arranged between the two rows of flow holes one 402. The guide plates 405 are composed of vertical sections and inclined sections, and the inclined sections of the two guide plates 405 are opposite. When the water source flows, waves are generated, the waves surge upwards from the flow holes one 402 and impact on the inclined sections of the guide plates 405. Due to the guidance of the inclined sections, the surging water source impacts on the longitudinal plates 403 in a relative manner. The water flow is blocked by the longitudinal plates 403 and changes direction again. The directions of the guidance of the two guide plates 405 are opposite, so the water source rebounded by the longitudinal plates 403 will collide, thereby playing a counteracting role, reducing the rising of splashes, ensuring the stability of the water surface, improving the accuracy of water level monitoring, avoiding the problem of insufficient water replenishment caused by monitoring errors, and improving the effectiveness and safety of water replenishment.

[0068] The remaining structures are the same as those of Example 2.

[0069] Operation process: when water is filled, the water source enters the emergency water replenishing tank 201, and the entering water source flows through the flow holes two 404. The flow of the flow holes two 404 can reduce the impact and the generation of waves. With the rise of the liquid surface, the waves surge upwards from the flow holes one 402 and impact on the inclined sections of the guide plates 405. Due to the guidance of the inclined sections, the surging water source impacts on the longitudinal plates 403 in a relative manner. The water flow is blocked by the longitudinal plates 403 and changes direction again. The directions of the guidance of the two guide plates 405 are opposite, so the water source rebounded by the longitudinal plates 403 will collide, thereby playing a counteracting role, reducing the rising of splashes, ensuring the stability of the water surface, improving the accuracy of water level monitoring, avoiding the problem of insufficient water replenishment caused by monitoring errors, and improving the effectiveness and safety of water replenishment.

[0070] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the present application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "apparatus" or "device" or "structure" or "means" disclosed herein can be a structure that functions in accordance with the description of the functions performed by the structure as set forth in the written description provided above. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and also cover structures yet to be invented which perform the recited function but operate in a different manner. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described in the specification above, but rather extends to any inventive combination of one or more features disclosed herein.

[0071] Also, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the best mode of practicing the application, or those more specific to a single implementation).

[0072] It should be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill in the art having the benefit of this disclosure.

[0073] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. An emergency water supply system for a steam drum boiler, characterized in that: include: The steam drum section (100) includes a steam drum (101), a pipe assembly (102) connected to the water inlet of the steam drum (101), and a heating assembly (103) installed on the pipe assembly (102) for heating the water flowing inside the pipe assembly (102); The constant pressure emergency water supply section (200) includes an emergency water supply tank (201), a flowing water treatment component (202) with its two ends connected to the return / outlet ends of the emergency water supply tank (201) respectively, and an emergency water supply component (203) installed at the outlet end of the flowing water treatment component (202); The dirt filtration section (300) is connected between the emergency water supply component (203) and the pipeline component (102) for filtering dirt in the circulating water source. It includes a filter component (301) and a flushing component (302) disposed on the filter component (301). The filter assembly (301) includes a hollow tank (301a), with connector pipes (301b) connected to both ends of the hollow tank (301a). Flow meters (301c) are installed on both connector pipes (301b). Filter tubes (301d) are equidistantly arranged inside the hollow tank (301a), and a column block (301e) is located at the center of the hollow tank (301a). A fixing sleeve (301f) that is fitted and fixed to the filter tube (301d) is fixedly connected to the outer periphery of the column block (301e). A transmission rod (301g) is fixed to one side of the column block (301e), and the other end of the transmission rod (301g) passes through the hollow tank (301a). An angle motor (301h) for driving the transmission rod (301g) to rotate is installed at one end of the hollow tank (301a).

2. The emergency water supply system for a steam drum boiler as described in claim 1, characterized in that: The pipeline assembly (102) includes a first pipeline (102a) connected to the water inlet of the steam drum (101), a second pipeline (102b) connected to the other end of the first pipeline (102a), and a third pipeline (102c) connected in parallel to the second pipeline (102b). A valve assembly (102d) is installed on both the third pipeline (102c) and the second pipeline (102b), and a regulating valve (102e) is installed on the second pipeline (102b).

3. The emergency water supply system for a steam drum boiler as described in claim 2, characterized in that: The heating assembly (103) includes an economizer (103a) installed on pipe one (102a) and heater one (103b) and heater two (103c) connected in series on pipe two (102b).

4. The emergency water supply system for a steam drum boiler as described in claim 3, characterized in that: The flowing water treatment assembly (202) includes a deaeration and temperature control component (202a) connected to the outlet of the emergency water supply tank (201) and a return component (202b) installed at the return end of the emergency water supply tank (201).

5. The emergency water supply system for a steam drum boiler as described in claim 4, characterized in that: The deaerator temperature control component (202a) includes an outlet pipe (202a-1), a deaerator (202a-2) is installed at the other end of the outlet pipe (202a-1), and a valve group three (202a-3) is provided on the outlet pipe (202a-1). The bottom end of the deaerator (202a-2) is connected to a branch pipe one (202a-4), and an outlet pump (202a-5) is provided on the branch pipe one (202a-4). The upper end of the deaerator (202a-2) is connected to a branch pipe two (202a-6), and the other end of the branch pipe two (202a-6) is connected to the outlet end of the branch pipe one (202a-4). A valve group four (202a-7) is provided on the branch pipe two (202a-6). The return component (202b) includes a return pipe (202b-1) and a valve assembly five (202b-2) installed on the return pipe (202b-1).

6. The emergency water supply system for a steam drum boiler as described in claim 3 or 5, characterized in that: The emergency water supply component (203) includes an emergency delivery pipe (203a), which is connected to the bottom of the emergency water supply tank (201), and an emergency constant pressure water pump (203b) and an emergency drain valve (203c) are connected in series on the emergency delivery pipe (203a).

7. The emergency water supply system for a steam drum boiler as described in claim 6, characterized in that: The flushing assembly (302) includes an air pipe (302a) connected to one end of the filter assembly (301) and a drain pipe (302b) connected to the other end of the filter assembly (301). The other end of the air pipe (302a) is connected to the low-pressure air outlet of the steam drum (101).

8. The emergency water supply system for a steam drum boiler as described in claim 7, characterized in that: It also includes a wave-damping component (400), which is installed in an emergency water supply tank (201) to reduce water surface fluctuations.

9. The emergency water supply system for a steam drum boiler as described in claim 8, characterized in that: The wave-proof part (400) includes a horizontal plate (401) fixed in an emergency water supply tank (201). The surface of the horizontal plate (401) is provided with flow holes (402) at equal intervals, and the surface of the horizontal plate (401) is provided with vertical plates (403) at equal intervals. The surface of the vertical plate (403) located below the horizontal plate (401) is provided with flow holes (404) at equal intervals. The upper surface of the horizontal plate (401) and between two adjacent vertical plates (403) are respectively fixed with guide plates (405).

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