CN216924335U - Be used for thermal generator set heat supply pipeline temperature reducing water system - Google Patents

Abstract

The utility model relates to the technical field of related equipment of thermal power plants, and particularly discloses a temperature reduction water system for a heat supply pipeline of a thermal generator set, which comprises a water supply pump, a temperature and pressure reducer and a salt removal tank, wherein the water supply pump is connected with the temperature reduction water reducer; the middle tap of the water feeding pump is communicated with a temperature and pressure reducing device in the temperature and pressure reducing station through a middle tap main pipe through a pipeline so as to be converged with a temperature reducing water pipeline; the water inlet of the temperature and pressure reducer is provided with a salt removing box, a filtering chamber is arranged in the salt removing box, the bottom of the filtering chamber is communicated with the electrolysis chamber through an electrolysis water pipe, and one side of the bottom of the electrolysis chamber is communicated with the temperature and pressure reducer through a pipeline. The desuperheating water system is provided with desuperheating water by a tap in the middle of the water feeding pump, so that the heat supply system is more stable and reliable in operation, and a foundation is laid for the safe operation of a unit; meanwhile, the original desuperheating water pump is stopped, so that a large amount of electric quantity can be saved, the overhauling workload of workers is reduced, and the overhauling cost of equipment is reduced.

Description

Be used for thermal generator set heat supply pipeline temperature reducing water system

Technical Field

The utility model relates to the technical field of related equipment of a thermal power plant, in particular to a water temperature reducing system for a thermal generator set heat supply pipeline.

Background

The heat supply system of our company provides industrial production steam for nearby factories, the steam pressure and temperature extracted from the reheating steam (cold re-heating for short) of the cold section of the unit 1 and the unit 2 are respectively 5.2Mpa and 350 ℃, and the production steam with the pressure of 2.5Mpa and 250 ℃ is provided after temperature and pressure reduction. The steam temperature is sprayed water to the heat supply pipeline through the temperature reduction water pump and is cooled down, but since the system operation, the temperature reduction water pump operation is unstable, the water pump motor often the supercurrent can't normally operate, parts such as water pump bearing and internal balance drum often take place simultaneously and damage the trouble, seriously influence the heat supply system safety and stability operation, also caused huge work burden for the staff.

The main defects of the existing heat supply pipeline desuperheating water pump at present are as follows:

1. in operation, the motor of the desuperheating water pump is easy to overcurrent, so that the normal operation cannot be realized.

2. The desuperheating water pump is unstable in operation, internal parts are easy to wear and damage, and the desuperheating water is interrupted, so that the temperature of a steam supply pipeline exceeds the standard, and the safe and stable operation of the system is influenced.

Therefore, a temperature-reducing water system capable of replacing a temperature-reducing water pump is urgently needed, so that the heat supply system can run more stably and reliably.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a temperature-reducing water system for a heat supply pipeline of a thermal generator set, and aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a temperature-reducing water system for a heat supply pipeline of a thermal generator set comprises a water supply pump and a temperature-reducing pressure reducer; the middle tap of the water feeding pump is communicated with a temperature and pressure reducing device in the temperature and pressure reducing station through a middle tap main pipe through a pipeline so as to be converged with a temperature reducing water pipeline;

a salt removing box is arranged at a water inlet of the temperature and pressure reducing device, a filtering chamber is arranged in the salt removing box, the bottom of the filtering chamber is communicated with an electrolysis chamber through an electrolysis water pipe, and one side of the bottom of the electrolysis chamber is communicated with the temperature and pressure reducing device through a pipeline; the top end of the filtering chamber is communicated with a water inlet pipe, the water inlet pipe is communicated with a main pipe of a middle tap of the water feeding pump, a first filtering net bag, a second filtering net bag and a third filtering net bag are horizontally arranged in the filtering chamber at intervals, and the mesh sizes of the first filtering net bag, the second filtering net bag and the third filtering net bag are sequentially decreased progressively;

the electrolytic cell is characterized in that a plurality of groups of anode electrolytic plates and cathode electrolytic plates are arranged inside the electrolytic cell, the upper end and the lower end of each of the anode electrolytic plates and the cathode electrolytic plates are respectively fixed on the upper supporting plate and the lower supporting plate, cleaning scrapers are connected to the outer walls of one sides of the anode electrolytic plates and the cathode electrolytic plates, and the cleaning scrapers are connected with a lifting driving device.

Preferably, separate through the separation baffle between two adjacent filter screen bags, the clear liquid export has all been seted up on the top of each separation baffle, and the clear liquid export sets up the top at second filter screen bag, third filter screen bag.

Preferably, the bottom of each filter net bag is communicated with a sewage collecting barrel, a control valve is installed on the sewage collecting barrel, the bottom of the sewage collecting barrel is communicated with a sewage collecting chamber, one side of the bottom of the sewage collecting chamber is communicated with a sewage discharge pipe, and the sewage discharge pipe is communicated with a sewage discharge pump.

Preferably, the lifting driving device comprises a lifting slide block arranged on the outer side of the cleaning scraper, a transmission screw rod penetrates through the lifting slide block, and the transmission screw rod is in threaded connection with the lifting slide block.

Preferably, the bottom end of the transmission screw penetrates through the lower support plate and is connected with a driven bevel gear, a driving bevel gear is installed on one side of the driven bevel gear, and the driving bevel gear is in mechanical transmission connection with the driven bevel gear.

Preferably, each driving bevel gear is fixed on a transmission rotating shaft, the transmission rotating shaft penetrates through the axis of the driving bevel gear and is rotatably installed below the lower supporting plate, and one end of the transmission rotating shaft is arranged on the outer side of the electrolysis chamber and is connected with a driving motor through a coupler.

Preferably, each lubricating brush is all installed to one side of initiative conical gear, and the top of each lubricating brush all communicates the oil-out of lubricated oil pipe, and the oil inlet setting of lubricated oil pipe removes the outside of salt case, and the oil inlet intercommunication oil hopper of lubricated oil pipe installs the shield on the oil hopper.

Preferably, the lubricating brush includes the oil storage box, and the inside of oil storage box is provided with the oil absorption sponge, and the bottom interval of oil storage box is provided with a plurality of oil outlets, and the internally mounted of oil outlet has the brush.

Preferably, the outside cover of brush is equipped with protective sleeve, and the length of brush is greater than protective sleeve's length, and the bottom setting of brush is in protective sleeve's below.

Compared with the prior art, the utility model has the beneficial effects that:

1. the temperature-reducing water system for the heat supply pipeline of the thermal generator set, provided by the utility model, is provided with the temperature-reducing water by the middle tap of the water supply pump, so that the heat supply system is more stable and reliable in operation, and a foundation is laid for the safe operation of the set; meanwhile, the original desuperheating water pump is stopped, so that a large amount of electric quantity can be saved, the overhauling workload of workers is reduced, and the overhauling cost of equipment is reduced.

2. According to the scheme, the salt removing box is further arranged at the water inlet of the temperature and pressure reducer, the filtering component and the motor component are arranged in the salt removing box, so that the purposes of purifying and removing salt of water entering the temperature and pressure reducer can be achieved, the service life of the temperature and pressure reducer can be effectively prolonged, and the running stability of a heat supply system is further ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the structure of the desalting box of the present invention;

FIG. 3 is a schematic diagram of a specific structure of the lift driving apparatus of the present invention;

fig. 4 is a cross-sectional view of a lubricating brush of the present invention.

In the figure: 1. a feed pump; 2. a temperature and pressure reducer; 3. electrolyzing a water pipe; 4. tapping a main pipe in the middle; 5. a desalting box; 6. a filtering chamber; 7. an electrolysis chamber; 8. a first filter net bag; 9. a second filter string bag; 10. a third filter string bag; 11. an anode electrolytic plate; 12. a cathode electrolyte plate; 13. an upper support plate; 14. a lower support plate; 15. cleaning a scraper; 16. separating the partition plate; 17. a clear liquid outlet; 18. a dirt collecting cylinder; 19. a dirt collection chamber; 20. a blow-off pipe; 21. a sewage pump; 22. a lifting slide block; 23. a drive screw; 24. a driven bevel gear; 25. a driving bevel gear; 26. a transmission rotating shaft; 27. a drive motor; 28. lubricating the brush; 281. an oil storage box; 282. an oil absorbing sponge; 283. a brush; 284. a protective sleeve; 29. a lubricating oil pipe; 30. and an oil adding hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention provides a technical solution: a temperature reduction water system for a heat supply pipeline of a thermal generator set comprises a water supply pump 1 and a temperature reduction pressure reducer 2; the middle tap of the water feeding pump 1 is communicated with a temperature and pressure reducing device 2 in a temperature and pressure reducing station through a middle tap main pipe 4 by a pipeline so as to be converged with a temperature and pressure reducing water pipeline;

a water inlet of the temperature and pressure reducing device 2 is provided with a desalting box 5, a filtering chamber 6 is arranged in the desalting box 5, the bottom of the filtering chamber 6 is communicated with an electrolysis chamber 7 through an electrolysis water pipe 3, and one side of the bottom of the electrolysis chamber 7 is communicated with the temperature and pressure reducing device 2 through a pipeline; the top end of the filtering chamber 6 is communicated with a water inlet pipe, the water inlet pipe is communicated with a middle tap main pipe 4 of the water feeding pump 1, a first filtering net bag 8, a second filtering net bag 9 and a third filtering net bag 10 are horizontally installed in the filtering chamber 6 at intervals, and the mesh sizes of the first filtering net bag 8, the second filtering net bag 9 and the third filtering net bag 10 are sequentially decreased;

the inside of electrolysis chamber 7 installs multiunit positive pole electrolytic plate 11, negative pole electrolytic plate 12, and the upper and lower both ends of positive pole electrolytic plate 11, negative pole electrolytic plate 12 are fixed respectively on upper support plate 13, lower support plate 14, all is connected with clearance scraper 15 on the outer wall of one side of positive pole electrolytic plate 11 and negative pole electrolytic plate 12, and clearance scraper 15 is connected with lift drive arrangement.

Further, separate through separation baffle 16 between two adjacent filter screen bags, clear liquid export 17 has all been seted up on the top of each separation baffle 16, and clear liquid export 17 sets up the top at second filter screen bag 9, third filter screen bag 10.

Furthermore, the bottom end of each filter net bag is communicated with a sewage collecting cylinder 18, a control valve is installed on the sewage collecting cylinder 18, the bottom end of the sewage collecting cylinder 18 is communicated with a sewage collecting chamber 19, one side of the bottom end of the sewage collecting chamber 19 is communicated with a sewage discharge pipe 20, and the sewage discharge pipe 20 is communicated with a sewage discharge pump 21.

Further, the lifting driving device comprises a lifting slider 22 arranged on the outer side of the cleaning scraper 15, a transmission screw 23 penetrates through the lifting slider 22, and the transmission screw 23 is in threaded connection with the lifting slider 22.

Further, the bottom end of the transmission screw 23 penetrates through the lower support plate 14 to be connected with a driven conical gear 24, one side of the driven conical gear 24 is provided with a driving conical gear 25, and the driving conical gear 25 is in mechanical transmission connection with the driven conical gear 24.

Furthermore, each driving bevel gear 25 is fixed on a transmission rotating shaft 26, the transmission rotating shaft 26 penetrates through the axis of the driving bevel gear 25, the transmission rotating shaft 26 is rotatably installed below the lower support plate 14, and one end of the transmission rotating shaft 26 is arranged outside the electrolysis chamber 7 and is connected with a driving motor 27 through a coupling.

Further, one side of each driving bevel gear 25 is provided with a lubricating brush 28, the top end of each lubricating brush 28 is communicated with an oil outlet of a lubricating oil pipe 29, an oil inlet of the lubricating oil pipe 29 is arranged on the outer side of the salt removing box 5, an oil inlet of the lubricating oil pipe 29 is communicated with an oil filling hopper 30, and a dust cover is arranged on the oil filling hopper 30.

Further, the lubricating brush 28 includes an oil storage box 281, an oil absorption sponge 282 is arranged in the oil storage box 281, a plurality of oil outlets are arranged at the bottom end of the oil storage box 281 at intervals, and a brush 283 is arranged in the oil outlets.

Further, the outside cover of brush 283 is equipped with lag tube 284, and the length of brush 283 is greater than the length of lag tube 284, and the bottom of brush 283 sets up the below at lag tube 284.

The working principle is as follows: when the device is actually used, the temperature of cold re-steam is about 350 ℃, the working parameters of a middle tap of the water supply pump 1 are about 11.38MPa, the temperature is 177 ℃, and the temperature is just suitable for a temperature reduction water source of a heat supply pipeline; according to the scheme, a water source is connected to a middle tap main pipe 4 of a water supply pump 1 and is connected to a temperature reduction water pipeline of a cold re-temperature reducer 2, and the pressure of a middle tap is adjusted from 11.38MPa to 2.5MPa through a pressure reducing valve to serve as heat supply pipeline temperature reduction water.

Because this scheme still is provided with desalination case 5 in the water inlet department of pressure reducer 2, make when the water of leading out by female pipe 4 department of centre tap behind getting into desalination case 5, loop through first filter string bag 8, the layer upon layer of second filter string bag 9 and third filter string bag 10 filters, because separate through separation baffle 16 between a plurality of filter string bags, make the supernatant that filters out via last one-level filter string bag can get into the filter string bag of next stage through the clear liquid export 17 that corresponds and filter once more, reach the purpose thoroughly to quality of water with this, the impurity of crossing the filtration gets into in the dirty room 19 of collection via the dirty section of thick bamboo 18 of collection of each filter string bag bottom, can carry out periodic cleaning to it through dredge pump 21.

After the water is filtered by the filter chamber 6, the water is introduced into the electrolysis chamber 7 through the electrolysis water pipe 3, the power supply of the electrolysis chamber 7 is connected, the purified water is desalted through the anode electrolysis plate 11 and the cathode electrolysis plate 12, and the water after electrolysis and desalting is discharged to the temperature and pressure reducing device 2 through a pipeline for treatment.

Because in the car of crossing of positive pole electrolytic plate 11, negative pole electrolytic plate 12 long-term use, salt stain etc. can be attached to the surface of electrolytic plate, consequently, need operating personnel to start driving motor 27 regularly, make driving motor 27 drive transmission pivot 26 rotatory, it is rotatory to drive initiative conical gear 25 through transmission pivot 26, initiative conical gear 25 is connected through the meshing with driven conical gear 24, make drive screw 23 synchronous revolution, because drive screw 23 and lifting slide 22 threaded connection, make lifting slide 22 drive clearance scraper 15 and do the ascending/descending motion, clear up the surface of electrolytic plate through clearance scraper 15.

In the rotating process of the driving bevel gear 25, the brush 283 oils and protects the driving bevel gear 25 by friction with the brush 283, so that the service life of the driving bevel gear is prolonged.

It is worth noting that: the whole device realizes control to the device through the controller, and the controller is common equipment and belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure of the controller are not repeated herein.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a be used for thermal generator set heat supply pipeline desuperheating water system which characterized in that: comprises a water feeding pump (1), a temperature and pressure reducing device (2) and a desalting tank (5); the middle tap of the water feeding pump (1) is communicated with a temperature and pressure reducing device (2) in a temperature and pressure reducing station through a middle tap main pipe (4) through a pipeline so as to be converged with a temperature and pressure reducing water pipeline;

a salt removing box (5) is installed at a water inlet of the temperature and pressure reducing device (2), a filtering chamber (6) is arranged inside the salt removing box (5), the bottom of the filtering chamber (6) is communicated with an electrolysis chamber (7) through an electrolysis water pipe (3), and one side of the bottom of the electrolysis chamber (7) is communicated with the temperature and pressure reducing device (2) through a pipeline; the top end of the filtering chamber (6) is communicated with a water inlet pipe, the water inlet pipe is communicated with a main pipe (4) of a tap in the middle of the water feeding pump (1), a first filtering net bag (8), a second filtering net bag (9) and a third filtering net bag (10) are horizontally installed in the filtering chamber (6) at intervals, and the mesh sizes of the first filtering net bag (8), the second filtering net bag (9) and the third filtering net bag (10) are sequentially decreased progressively;

the electrolytic cell is characterized in that a plurality of groups of anode electrolytic plates (11) and cathode electrolytic plates (12) are arranged in the electrolytic chamber (7), the upper ends and the lower ends of the anode electrolytic plates (11) and the cathode electrolytic plates (12) are respectively fixed on the upper supporting plate (13) and the lower supporting plate (14), cleaning scrapers (15) are connected to the outer walls of one sides of the anode electrolytic plates (11) and the cathode electrolytic plates (12), and the cleaning scrapers (15) are connected with a lifting driving device.

2. The system of claim 1, wherein the system comprises: separate through separation baffle (16) between two adjacent filter net bags, clear liquid export (17) have all been seted up on the top of each separation baffle (16), and clear liquid export (17) set up the top at second filter net bag (9), third filter net bag (10).

3. The system of claim 1, wherein the system is used for reducing the temperature of the heat supply pipeline of the thermal generator set, and is characterized in that: the bottom of each filtering net bag is communicated with a sewage collecting cylinder (18), a control valve is installed on the sewage collecting cylinder (18), the bottom of the sewage collecting cylinder (18) is communicated with a sewage collecting chamber (19), one side of the bottom of the sewage collecting chamber (19) is communicated with a sewage discharge pipe (20), and the sewage discharge pipe (20) is communicated with a sewage discharge pump (21).

4. The system of claim 1, wherein the system comprises: the lifting driving device comprises a lifting slide block (22) arranged on the outer side of the cleaning scraper (15), a transmission screw rod (23) penetrates through the lifting slide block (22), and the transmission screw rod (23) is in threaded connection with the lifting slide block (22).

5. The system of claim 4, wherein the system comprises: the bottom end of the transmission screw rod (23) penetrates through the lower supporting plate (14) to be connected with a driven bevel gear (24), a driving bevel gear (25) is installed on one side of the driven bevel gear (24), and the driving bevel gear (25) is in mechanical transmission connection with the driven bevel gear (24).

6. The system of claim 5, wherein the system is used for reducing the temperature of the heat supply pipeline of the thermal generator set, and comprises: each initiative conical tooth wheel (25) all are fixed on transmission pivot (26), and transmission pivot (26) run through the axle center setting of initiative conical tooth wheel (25), and transmission pivot (26) rotate the installation in the below of lower backup pad (14), and the one end setting of transmission pivot (26) is in the outside of electrolysis chamber (7) to there is driving motor (27) through the coupling joint.

7. The system of claim 5, wherein the system is used for reducing the temperature of the heat supply pipeline of the thermal generator set, and comprises: each lubricating brush (28) is installed on one side of the driving bevel gear (25), the top end of each lubricating brush (28) is communicated with an oil outlet of a lubricating oil pipe (29), an oil inlet of the lubricating oil pipe (29) is formed in the outer side of the salt removing box (5), an oil inlet of the lubricating oil pipe (29) is communicated with an oil adding hopper (30), and a dust cover is installed on the oil adding hopper (30).

8. The system of claim 7, wherein the system comprises: lubricated brush (28) are provided with oil absorption sponge (282) including oil storage box (281) in the inside of oil storage box (281), and the bottom interval of oil storage box (281) is provided with a plurality of oil outlets, and the internally mounted of oil outlet has brush (283).

9. The system of claim 8, wherein the system comprises: the outside cover of brush (283) is equipped with lag tube (284), and the length of brush (283) is greater than the length of lag tube (284), and the bottom setting of brush (283) is in the below of lag tube (284).

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