Shaft seal condensed water recycling and consumption reducing system for thermal power plant

Abstract

The utility model discloses a shaft seal condensation water recycling and consumption reducing system for a thermal power plant, and belongs to the technical field of condensation water recycling. A shaft seal condensation water recycling consumption reduction system for a thermal power plant comprises a filtering device used for filtering suspended solids and particle impurities in condensation water; the filtering device comprises a shell, a filtering assembly and a cover plate; the cover plate is arranged at the top of the shell; the shell is hollow and is provided with a cavity; the filtering assembly penetrates through the top of the cover plate and extends into a cavity in the shell; the filtering assembly comprises a filter element, a connecting rod and a driving assembly; the driving assembly is fixedly arranged at the top of the cover plate; the output end of the driving assembly penetrates through the cover plate and is fixedly connected with one end of the connecting rod so as to drive the connecting rod to rotate; the lower end part of the connecting rod extends into the inner cavity formed in the middle of the filter element, and a plurality of cleaning pieces are arranged on the periphery of the lower end part of the connecting rod to clean the inner cavity of the filter element, so that the condensed water can be filtered and recycled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the condensate water recycling technical field, more specifically, relate to a kind of condensate water recycling and consumption reduction system for steam turbine of thermal power plant. BACKGROUND

[0002] In the operation process of thermal power plant, condensate water can be produced, and the condensate water is an important water resource. If it is not properly utilized, it may lead to resource waste and energy consumption increase. Therefore, its reasonable recovery and recycling not only can effectively save water resources, but also can reduce the operation energy consumption of thermal power plant. In the collection process of condensate water, the filter device used in the collection process of condensate water is prone to accumulate impurities on the surface of the filter element during long-term use, and the filter channel is blocked, thereby reducing the filtering efficiency. The existing technology usually solves the blockage problem by manually disassembling and cleaning the filter element. This way is complicated and time-consuming, affects the continuous operation of the system, and increases the maintenance cost. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to provide a condensate water recycling and consumption reduction system for steam turbine of thermal power plant, which can realize the filtration and recovery of condensate water, and the filter device arranged can be self-cleaning to prolong the service life.

[0004] The condensate water recycling and consumption reduction system for steam turbine of thermal power plant is used for recycling condensate water, and comprises a filter device for filtering suspended solids and particulate impurities in the condensate water. The filter device comprises a shell, a filter assembly and a cover plate. The cover plate is installed on the top of the shell. The shell is hollow and has a cavity. The filter assembly penetrates the top of the cover plate and extends into the cavity in the shell.

[0005] The filter assembly comprises a filter element, a connecting rod and a driving assembly. The driving assembly is fixedly arranged on the top of the cover plate. The output end of the driving assembly penetrates the cover plate and is fixedly connected with one end of the connecting rod to drive the rotating operation of the connecting rod. The lower end of the connecting rod extends into the inner cavity arranged in the middle of the filter element. A plurality of cleaning pieces are arranged on the outer periphery of the lower end of the connecting rod to clean the inner cavity of the filter element.

[0006] As a further improvement of the utility model, a plurality of support rods are fixedly connected to the bottom of the cover plate, and the support rods are arranged around the bottom of the cover plate. The support rods are fixedly arranged with a fixing ring away from the bottom of the cover plate. The upper end of the filter element is detachably connected with the fixing ring.

[0007] As a further improvement of the utility model, a plurality of fixing rods are fixedly arranged on the outer periphery of the lower end of the connecting rod, and the one end of the fixing rod away from the connecting rod is connected with the corresponding cleaning piece. The inner side wall of the inner cavity of the filter element is arranged in abutment with the cleaning piece away from the fixing rod to clean the inner side wall of the inner cavity of the filter element.

[0008] As a further improvement of the utility model, the cleaning member comprises a fixing frame and a cleaning piece; the side wall of one side of the fixing frame is detachably connected with the end of the fixing rod far away from the connecting rod, and the cleaning piece is installed on the side wall of the side of the fixing frame far away from the fixing rod.

[0009] As a further improvement of the utility model, the cleaning piece is a brush or a sponge.

[0010] As a further improvement of the utility model, the cleaning piece and the fixing frame are detachably connected, and the cleaning piece is sleeved on the fixing frame.

[0011] As a further improvement of the utility model, the filter core is detachably connected with the supporting rod through the fixing ring, and the detachable connection is a threaded connection.

[0012] As a further improvement of the utility model, the fixing frame and the fixing rod are buckle-connected.

[0013] As a further improvement of the utility model, the bottom of the filter core is provided with a filter screen layer, and the filter screen layer is detachably connected with the filter core.

[0014] Compared with the prior art, the utility model has the beneficial effects that the filter assembly arranged in the filter device can efficiently remove the suspended solids and particulate impurities in the condensed water, thereby improving the purity of the condensed water and ensuring that the quality of the recovered water meets the requirements.

[0015] The driving assembly drives the cleaning member to rotate through the connecting rod, realizes the cleaning operation on the inner side wall of the inner cavity of the filter core, avoids the complicated operation of traditional manual disassembly and cleaning, greatly reduces the maintenance workload, improves the continuity and stability of system operation, and prolongs the service life of the filter core.

[0016] The filter core and the supporting rod are detachably connected, which not only ensures the stability of the connection of the components, but also facilitates quick disassembly and replacement, and significantly improves the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the filter device and the water pump connected in the utility model;

[0018] Figure 2 It is a structural schematic view of the filter assembly and the cover plate in the utility model;

[0019] Figure 3 It is a structural schematic view of the filter assembly and the cover plate after removing the filter core in the utility model.

[0020] Explanation of reference numerals in the drawing:

[0021] 1, filter device; 11, filter assembly; 111, filter core; 112, connecting rod; 113, drive assembly; 114, support rod; 115, cleaning device; 1151, cleaning piece; 1152, fixed rod; 116, filter screen layer; 12, cover plate; 2, water pump. DETAILED DESCRIPTION

[0022] The utility model will be made further detailed explanation in combination with the embodiment, the following embodiment is the explanation of the utility model and the utility model is not limited to the following embodiment.

[0023] Specific embodiment one: please refer to Figure 1 A heat power plant shaft seal condensate recycling consumption reduction system for recovering condensate, comprising a condensate collector, a deaerator, a filter device 1, an ion exchanger, a heater and several water pumps 2.

[0024] Condensate collector: for collecting the condensate formed after cooling;

[0025] Deaerator: remove dissolved oxygen and other gases to prevent equipment corrosion;

[0026] Filter device 1: for filtering suspended solids and particulate impurities in condensate;

[0027] Ion exchanger: remove dissolved ions (such as calcium, magnesium, sodium, etc.) to soften or desalt water quality;

[0028] Heater: increase water temperature to meet the subsequent process requirements;

[0029] Water pump: for conveying condensate to different processing units or recycling system.

[0030] Filter device 1 comprises a shell, a filter assembly 11 and a cover plate 12; the cover plate 12 is installed and arranged on the top of the shell; the shell is hollowly provided with a cavity; the filter assembly 11 penetrates the top of the cover plate 12 and extends into the cavity inside the shell;

[0031] The bottom of the cover plate 12 is fixedly connected with several support rods 114, which are arranged around the bottom of the cover plate 12; the support rods 114 are fixedly provided with a fixed ring away from the bottom of the cover plate 12;

[0032] The filter assembly 11 comprises a filter core 111, a connecting rod 112 and a drive assembly 113; the drive assembly 113 is fixedly arranged on the top of the cover plate 12; the output end of the drive assembly 113 is fixedly connected with one end of the connecting rod 112 penetrating the cover plate 12, so as to drive the connecting rod to rotate; the lower end of the connecting rod 112 extends into the inner cavity arranged in the middle of the filter core 111, and the lower end of the connecting rod 112 is externally provided with several cleaning pieces 1151, so as to clean the inner cavity of the filter core 111.

[0033] The upper end of the filter element 111 is detachably connected to the fixing ring, and the filter element 111 is detachably connected to the support rod 114 through the fixing ring; preferably, the detachable connection is a threaded connection.

[0034] A number of fixing rods 1152 are fixedly provided on the outer periphery of the lower end of the connecting rod 112. The end of the fixing rod 1152 away from the connecting rod 112 is installed and connected to the corresponding cleaning component 1151. The side of the cleaning component 1151 away from the fixing rod 1152 abuts against the inner wall of the inner cavity of the filter element 111 to clean the inner wall of the inner cavity of the filter element 111.

[0035] The cleaning component 1151 includes a fixing frame and a cleaning component; one side wall of the fixing frame is detachably connected to the end of the fixing rod 1152 away from the connecting rod 112, and the cleaning component is installed on the side wall of the fixing frame away from the fixing rod 1152.

[0036] The cleaning component and the fixing frame can be fixedly connected or detachably connected; a detachable connection between the cleaning component and the fixing frame can be that the cleaning component is fitted onto the fixing frame.

[0037] The fixing bracket and fixing rod 1152 can be connected by thread, snap-fit, etc.

[0038] Optionally, the cleaning component can be a brush or a sponge, etc.

[0039] Preferably, a filter layer 116 is installed at the bottom of the filter element 111; preferably, the filter layer 116 is detachably connected to the filter element 111.

[0040] The energy-saving system also includes several connecting water pipes and a collection tank; one water pump 2 is connected to the heater, condensate collector and filter device 1 through the connecting water pipes respectively. The water pump 2 draws condensate from the condensate collector and delivers it to the filter device 1 for filtration; another water pump 2 is connected to the filter device 1 and the collection tank through the connecting water pipes respectively. The water pump 2 draws condensate filtered in the filter device 1 and delivers it to the collection tank.

[0041] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A kind of shaft seal condensate water recycling consumption reduction system for thermal power plant, for recycling condensate water, it is characterized by: The application relates to a filtering device (1) for filtering suspended solids and particulate impurities in condensed water; the filtering device (1) comprises a shell, a filtering assembly (11) and a cover plate (12); the cover plate (12) is arranged on the top of the shell; the shell is hollow and provided with a cavity; the filtering assembly (11) penetrates through the top of the cover plate (12) and extends into the cavity in the shell; The filtering assembly (11) comprises a filter core (111), a connecting rod (112) and a driving assembly (113); the driving assembly (113) is fixedly arranged on the top of the cover plate (12); the output end of the driving assembly (113) is fixedly connected with one end of the connecting rod (112) penetrating through the cover plate (12) to drive the connecting rod to rotate; the lower end of the connecting rod (112) extends into the inner cavity arranged in the middle of the filter core (111), and a plurality of cleaning pieces (1151) are arranged on the outer periphery of the lower end of the connecting rod (112) to clean the inner cavity of the filter core (111).

2. The shaft seal condensate recycling system for a thermal power plant according to claim 1, characterized in that: The bottom of the cover plate (12) is fixedly connected with a plurality of supporting rods (114) arranged around the bottom of the cover plate (12); the supporting rods (114) are fixedly arranged with fixing rings away from the bottom of the cover plate (12); the upper end of the filter core (111) is detachably connected with the fixing rings.

3. The energy-saving system for shaft seal condensate recycling in a thermal power plant according to claim 1, characterized in that: The outer periphery of the lower end of the connecting rod (112) is fixedly provided with a plurality of fixing rods (1152), one end of the fixing rod (1152) away from the connecting rod (112) is detachably connected with the corresponding cleaning piece (1151); one side of the cleaning piece (1151) away from the fixing rod (1152) is abutted with the inner side wall of the inner cavity of the filter core (111) to clean the inner side wall of the inner cavity of the filter core (111).

4. A shaft seal condensate recycling and energy-saving system for thermal power plants according to claim 1, characterized in that: The cleaning piece (1151) comprises a fixing frame and a cleaning piece; one side of the fixing frame is detachably connected with the end of the fixing rod (1152) away from the connecting rod (112), and the cleaning piece is arranged on the side wall of the fixing frame away from the fixing rod (1152).

5. The system as claimed in claim 4, wherein the system further comprises a condensate tank (7) and a condensate pump (8) for pumping the condensate from the condensate tank (7) to the condensate tank (7) of the steam turbine (1). The cleaning piece is a brush or a sponge.

6. The system as claimed in claim 4, wherein the system further comprises a condensate tank (7) and a condensate pump (8) for pumping the condensate from the condensate tank (7) to the condensate tank (7) of the steam turbine (1). The cleaning piece and the fixing frame are detachably connected, and the cleaning piece is sleeved on the fixing frame.

7. The system as claimed in claim 2, wherein the system further comprises a condensate tank (7) and a condensate pump (8) for pumping the condensate from the condensate tank (7) to the condensate tank (7) of the steam turbine (1). The filter core (111) is detachably connected with the supporting rod (114) through the fixing ring, and the detachable connection is a threaded connection.

8. The system as claimed in claim 4, wherein the system further comprises a condensate tank (7) and a condensate pump (8) for pumping the condensate from the condensate tank (7) to the condensate tank (7) of the steam turbine (1). The fixing frame and the fixing rod (1152) are buckle-connected.

9. A shaft seal condensate recycling and energy-saving system for thermal power plants according to claim 1, characterized in that: The bottom of the filter core (111) is provided with a filter screen layer (116), and the filter screen layer (116) is detachably connected with the filter core (111).

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