CN212841518U

CN212841518U - Low-temperature economizer

Info

Publication number: CN212841518U
Application number: CN202021709301.9U
Authority: CN
Inventors: 赵继辉; 宋照伟; 孙克旭; 郭成磊
Original assignee: Qingdao Chentai Electric Power Co ltd
Current assignee: Qingdao Chentai Electric Power Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-30
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a low temperature economizer, including moisturizing case, water supply pipe, rotation sleeve, bearing piece and heat medium water expansion tank, the inlet channel is installed to the moisturizing case upper end, and installs the supporting shoe on the moisturizing case to the laminating has the filter on the supporting shoe, and the filter laminates with the moisturizing case each other simultaneously, the lower extreme at the moisturizing case is installed to the water supply pipe, and installs the moisturizing pump on the water supply pipe to install the fixed block on the water supply pipe, rotation sleeve and fixed block interconnect, and rotation sleeve and water supply pipe interconnect to install sealed the pad on the water supply pipe. This low temperature economizer realizes filtering the demineralized water that gets into in the moisturizing case through using the filter to avoid the impurity of aquatic to get into the moisturizing case in, cause the influence to the normal use of follow-up device, set up to detachable construction through the pipeline with the circulation piping installation front end, be convenient for wash in the pipeline.

Description

Low-temperature economizer

Technical Field

The utility model relates to a low temperature economizer technical field specifically is a low temperature economizer.

Background

The low-temperature economizer system is a closed circulation system, mainly by arrange in the cooling device before the electrostatic precipitator with arrange the flue gas heater behind the desulfurizing tower, supporting hot media water auxiliary heater, circulating water pump, water charging system, hot media expansion tank, ash removal device, charge device and other auxiliary system constitute, mainly use in the export of large-scale boiler air preheater such as power plant, steam power plant, further reduce flue gas temperature, reach the effect that improves boiler efficiency.

However, there are some problems in the process of using the low-temperature economizer, for example, a common water replenishing tank is lack of a filtering device, so that more impurities in external desalted water are easily brought into the device in the using process, long-time impurities are accumulated to easily influence the normal use of the device, and the pipeline of the device is generally of an integrated structure, so that the pipeline is difficult to disassemble, and the scale in the pipeline cannot be cleaned, so that the pipeline is blocked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature economizer to propose in solving above-mentioned background art and easily bring into the device with the more impurity of outside aquatic, can't clear up the problem that easily causes the jam of pipeline to the incrustation scale in the pipeline.

In order to achieve the above object, the utility model provides a following technical scheme: a low-temperature economizer comprises a water replenishing tank, a water supply pipeline, a rotating sleeve, a bearing block and a hot medium water expansion tank, wherein the upper end of the water replenishing tank is provided with a water inlet pipeline, the water replenishing tank is provided with a supporting block, the supporting block is attached to the supporting block and is provided with a filtering plate, the filtering plate and the water replenishing tank are attached to each other, the water supply pipeline is arranged at the lower end of the water replenishing tank, the water replenishing pump is arranged on the water supply pipeline, the water supply pipeline is provided with a fixed block, the rotating sleeve is connected with the fixed block and is connected with the water supply pipeline, the rotating sleeve is connected with the water supply pipeline, the water supply pipeline is provided with a sealing gasket, the bearing block is arranged on the water supply pipeline and is connected with the rotating sleeve, the water supply pipeline is arranged on a circulating pipeline device, the hot medium water expansion tank is arranged on the circulating pipeline device, and install the circulating pump on the water supply pipe, water supply pipe and gas cooler interconnect simultaneously, water supply pipe installs on gas heater, and installs the force (forcing) pump on the water supply pipe to water supply pipe and cooling device interconnect.

Preferably, the supporting blocks are symmetrically distributed about the center of the water replenishing tank, and U-shaped grooves are formed in the supporting blocks.

Preferably, the filter plate is in sliding connection with the supporting block through a groove formed in the supporting block, and the filter plate is provided with intensive through holes.

Preferably, the fixed block is of an annular structure, and the inner surface and the outer surface of the fixed block are smooth.

Preferably, the rotating sleeve and the water supply pipeline form a rotating mechanism through the fixing block, and the rotating sleeve is connected with the bearing block through a threaded structure arranged on the outer surface of the bearing block.

Preferably, the sealing gasket is made of soft rubber, the sealing gasket is connected with the receiving pipeline in an adhering mode, and the outer surface of the sealing gasket is smooth.

Compared with the prior art, the beneficial effects of the utility model are that: according to the low-temperature economizer, the filtering plate is used for filtering the demineralized water entering the water replenishing tank, so that impurities in the water are prevented from entering the water replenishing tank and affecting the normal use of a subsequent device, and the pipeline at the front end of the circulating pipeline device is arranged to be of a detachable structure, so that the pipeline can be conveniently cleaned;

1. the support block is arranged in the water replenishing tank, so that the support of the filter plate is realized through the support block, and the water entering the water replenishing tank can be filtered to a certain degree through the dense through holes arranged on the filter plate;

2. because the water in the pipeline behind the heating medium water expansion tank is in the condition of frequent flowing, thereby being difficult to block, and the water phase at the front end of the heating medium water expansion tank flows less, thereby needing to dismantle and clean the pipeline.

Drawings

FIG. 1 is a schematic view of a sectional structure of the water replenishing tank of the present invention;

FIG. 2 is a schematic view of the top view of the water replenishing tank of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the rotating sleeve according to the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a water replenishing tank; 2. a water inlet pipe; 3. a support block; 4. a filter plate; 5. a water supply pipeline; 6. a fixed block; 7. rotating the sleeve; 8. a gasket; 9. receiving a pipeline; 10. a bearing block; 11. a circulation line device; 12. a heating medium water expansion tank; 13. a circulation pump; 14. a flue gas cooler; 15. a flue gas heater; 16. a pressure pump; 17. a cooling device; 18. and (5) a water replenishing pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a low-temperature economizer comprises a water replenishing tank 1, a water inlet pipeline 2, a supporting block 3, a filtering plate 4, a water supply pipeline 5, a fixed block 6, a rotating sleeve 7, a sealing gasket 8, a receiving pipeline 9, a receiving block 10, a circulating pipeline device 11, a heating medium water expansion tank 12, a circulating pump 13, a flue gas cooler 14, a flue gas heater 15, a pressure pump 16, a cooling device 17 and a water replenishing pump 18, wherein the water inlet pipeline 2 is installed at the upper end of the water replenishing tank 1, the supporting block 3 is installed on the water replenishing tank 1, the filtering plate 4 is attached to the supporting block 3, the filtering plate 4 is attached to the water replenishing tank 1, the water supply pipeline 5 is installed at the lower end of the water replenishing tank 1, the water replenishing pump 18 is installed on the water supply pipeline 5, the fixed block 6 is installed on the water supply pipeline 5, the rotating sleeve 7 is connected with the fixed block 6, the rotating sleeve 7 is, meanwhile, the water supply pipeline 5 is provided with a bearing pipeline 9, a bearing block 10 is arranged on the water supply pipeline 5, the bearing block 10 is connected with the rotary sleeve 7, the water supply pipeline 5 is arranged on the circulation pipeline device 11, a heat medium water expansion tank 12 is arranged on the circulation pipeline device 11, the heat medium water expansion tank 12 is connected with the water supply pipeline 5, a circulating pump 13 is arranged on the water supply pipeline 5, meanwhile, the water supply pipeline 5 is connected with a flue gas cooler 14, the water supply pipeline 5 is arranged on a flue gas heater 15, a pressure pump 16 is arranged on the water supply pipeline 5, and the water supply pipeline 5 is connected with a cooling device 17.

In the embodiment, the supporting blocks 3 are symmetrically distributed about the center of the water replenishing tank 1, and U-shaped grooves are formed in the supporting blocks 3, so that the supporting and placing of the filter plate 4 through the supporting blocks 3 are facilitated through the structure;

the filter plate 4 is in sliding connection with the supporting block 3 through a groove formed in the supporting block 3, and the filter plate 4 is provided with dense through holes, so that the filter plate 4 can freely move in the supporting block 3 conveniently through the structure, and the filter plate 4 is provided with dense through holes, so that impurities in desalted water can be filtered to a certain degree conveniently;

the fixing block 6 is of an annular structure, and the inner surface and the outer surface of the fixing block 6 are smooth, so that the friction force between the fixing block 6 and the rotating sleeve 7 can be effectively reduced through the structure;

the rotating sleeve 7 and the water supply pipeline 5 form a rotating mechanism through the fixed block 6, the rotating sleeve 7 is connected with the bearing block 10 through a threaded structure arranged on the outer surface of the bearing block 10, through the structure, the rotating sleeve 7 is convenient to support, meanwhile, the rotation of the rotating sleeve 7 is not influenced, and the rotating sleeve 7 is connected with the bearing block 10 through the threaded structure arranged on the outer surface of the bearing block 10, so that the water supply pipeline 5 at two ends can be conveniently connected and fixed through the rotation of the rotating sleeve 7;

sealing gasket 8 is the soft rubber material, and sealing gasket 8 with accept pipeline 9 and be adhesive connection to 8 outer surfaces of sealing gasket set up to smooth, through above-mentioned structure, be convenient for realize sealed effect through sealing gasket 8.

The working principle is as follows: when the device needs to be used, the demineralized water enters the water supplementing tank 1 through the water inlet pipeline 2 in the graph 1 under the pressure, the water supplementing tank 1 is provided with the supporting block 3, the supporting block 3 is provided with the filtering plate 4, the filtering plate 4 starts to filter impurities in the demineralized water at the moment, the filtered demineralized water enters the lower end of the water supplementing tank 1, the lower end of the water supplementing tank 1 is provided with the water supply pipeline 5 and enters the circulating pipeline device 11 through the water supplementing pump 18 arranged on the water supply pipeline 5 until the whole device system is filled, when the heat medium water expansion tank 12 arranged in the circulating pipeline device 11 reaches a certain liquid level, the circulating pump 13 arranged on the water supply pipeline 5 is started, the heat medium water is boosted by the circulating pump 13 and enters the flue gas cooler 14, the heated demineralized water enters the flue gas heater 15 to heat the desulfurized low-temperature flue gas, the demineralized water cooled by the flue gas heater 15 returns to the inlet of the heat medium water circulating pump 13, thereby realizing the circulation effect;

when the pipeline at the front end of the circulation pipeline device 11 in fig. 1 needs to be cleaned, the rotating sleeve 7 in fig. 3 is rotated, because the rotating sleeve 7 is connected with the bearing block 10 through the threaded structure arranged on the bearing block 10, the rotating sleeve 7 starts to move leftwards, along with the leftward movement of the rotating sleeve 7, the rotating sleeve 7 does not act on the water supply pipeline 5 at the right end, at the moment, the circulation pipeline device 11 can move rightwards, so that the water supply pipeline 5 at the right end and the bearing pipeline 9 are not made any more, along with the bearing pipeline 9 is not attached to the water supply pipeline 5 any more, the water supply pipelines 5 at the left end and the right end can be cleaned, and the condition that the water supply pipeline 5 at the front end of the circulation pipeline device 11 is blocked is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a low temperature economizer, includes moisturizing case (1), water supply pipe (5), rotating sleeve (7), bearing block (10) and heat medium water expansion tank (12), its characterized in that: the water replenishing tank is characterized in that a water inlet pipeline (2) is installed at the upper end of the water replenishing tank (1), a supporting block (3) is installed on the water replenishing tank (1), a filtering plate (4) is attached to the supporting block (3), the filtering plate (4) is attached to the water replenishing tank (1), a water supply pipeline (5) is installed at the lower end of the water replenishing tank (1), a water replenishing pump (18) is installed on the water supply pipeline (5), a fixing block (6) is installed on the water supply pipeline (5), a rotating sleeve (7) is connected with the fixing block (6), the rotating sleeve (7) is connected with the water supply pipeline (5), a sealing gasket (8) is installed on the water supply pipeline (5), a bearing pipeline (9) is installed on the water supply pipeline (5), and the bearing block (10) is connected with the rotating sleeve (7), and water supply pipe (5) are installed on circulation pipe device (11), heat medium water expansion tank (12) are placed on circulation pipe device (11), and heat medium water expansion tank (12) and water supply pipe (5) interconnect to install circulating pump (13) on water supply pipe (5), water supply pipe (5) and gas cooler (14) interconnect simultaneously, water supply pipe (5) are installed on gas heater (15), and install force (forcing) pump (16) on water supply pipe (5), and water supply pipe (5) and cooling device (17) interconnect.

2. A low-temperature economizer as claimed in claim 1, wherein: the supporting blocks (3) are symmetrically distributed about the center of the water replenishing tank (1), and U-shaped grooves are formed in the supporting blocks (3).

3. A low-temperature economizer as claimed in claim 1, wherein: the filter plate (4) is in sliding connection with the supporting block (3) through a groove formed in the supporting block (3), and the filter plate (4) is provided with intensive through holes.

4. A low-temperature economizer as claimed in claim 1, wherein: the fixing block (6) is of an annular structure, and the inner surface and the outer surface of the fixing block (6) are smooth.

5. A low-temperature economizer as claimed in claim 1, wherein: the rotating sleeve (7) and the water supply pipeline (5) form a rotating mechanism through the fixing block (6), and the rotating sleeve (7) is connected with the bearing block (10) through a threaded structure arranged on the outer surface of the bearing block (10).

6. A low-temperature economizer as claimed in claim 1, wherein: the sealing gasket (8) is made of soft rubber, the sealing gasket (8) is connected with the receiving pipeline (9) in an adhering mode, and the outer surface of the sealing gasket (8) is smooth.