CN210441318U

CN210441318U - Energy-saving system for heating raw water by high-back-pressure heat supply system

Info

Publication number: CN210441318U
Application number: CN201921400869.XU
Authority: CN
Inventors: 陈文廷; 张艳洁; 侯悦; 郝斯媛; 李家胜
Original assignee: North China Desheng Project Management Beijing Co ltd; De'an Power Engineering Beijing Co ltd
Current assignee: North China Desheng Project Management Beijing Co ltd; De'an Power Engineering Beijing Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-01
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses an economizer system of high back pressure heating system heating raw water, including the outer box of heat exchanger, there are protecgulum and hou gai screw connection respectively at the outer box front and back end of heat exchanger, swing joint has the ring flange on first major diameter water inlet, the second major diameter water inlet, the cold water pipe is installed to the internal upper end of heat exchanger outer box, the wet return is installed to the internal lower extreme of heat exchanger outer box, the inside one side fixedly connected with filter screen of cold water pipe, wet return, and the filter screen left side is provided with the active carbon, the external box below of heat exchanger is provided with the comdenstion water collecting box, the upper end is through mounting panel fixedly connected with filter screen in the comdenstion water collecting box, the lower extreme rotates through the bearing. The utility model discloses a set up cold water inlet, hot water return water mouth, comdenstion water collecting box, filter screen and active carbon structure, have energy saving and emission reduction, be convenient for to the advantage that chemical system raw water and hot water return water heated simultaneously.

Description

Energy-saving system for heating raw water by high-back-pressure heat supply system

Technical Field

The utility model relates to a waste heat utilization technology field specifically is an economizer system of high back pressure heating system heating raw water.

Background

In the chemical water treatment system of the thermal power plant, the water inlet temperature in the demineralized water system has a large influence on the output of the reverse osmosis system, the water yield conductance of the reverse osmosis membrane is very sensitive to the change of the water inlet temperature, the water flux is linearly increased along with the increase of the water temperature, the water yield is increased by 2.5 to 3.0 percent when the water inlet temperature rises by 1 ℃, the membrane flux of the general reverse osmosis system is designed according to the temperature of 25 ℃, therefore, the raw water needs to be heated at the inlet of the system, an auxiliary steam system in a thermodynamic system is generally adopted to heat the raw water, the steam has certain pressure and temperature, the area required by a heat exchanger is small, and the heating efficiency is high.

However, the prior art has the following defects:

1. the existing system cannot have the function of heating circulating water of a heat supply system and raw water of a chemical water system, so that the use is inconvenient;

2. in the process of heating water by the existing system, relevant measures for filtering and purifying water are not provided, and the effects of energy conservation and emission reduction are not ideal.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides an economizer system of high back pressure heating system heating raw water has solved and has had existing system can't have the function that heats heating system circulating water and chemical water system raw water among the prior art, and unrelated carries out filtration purification's measure to water, and the unsatisfactory problem of energy saving and emission reduction effect.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an energy-saving system for heating raw water by a high-backpressure heat supply system comprises an outer heat exchanger body, wherein the front end and the rear end of the outer heat exchanger body are respectively in threaded connection with a front cover and a rear cover, a water outlet is formed in the central position of the outer side of the front cover, the middle section of the top of the outer heat exchanger body is in threaded connection with a second large-diameter water inlet, the left side of the middle section of the top of the outer heat exchanger body is in threaded connection with a first large-diameter water inlet, the upper ends of the first large-diameter water inlet and the second large-diameter water inlet are movably connected with a flange plate, a cold water pipe is installed at the upper end of the outer heat exchanger body and extends into an opening formed in the upper portion of the right side of the front cover, a water return pipe is installed at the lower end of the inner part of the outer, the upper end passes through mounting panel fixedly connected with filter screen in the comdenstion water collecting box, the lower extreme rotates through the bearing frame and is connected with the active carbon in the comdenstion water collecting box.

Preferably, the central position of the right side of the condensed water collecting box is provided with a water supply port, and a water outlet pipe is sleeved inside the water supply port.

Preferably, the middle part of the upper end of the condensed water collecting box is connected with a water outlet arranged in the middle of the bottom end of the outer box body of the heat exchanger in a sleeved mode through a water inlet pipe, and a water pump is placed in the middle of the bottom end of the condensed water collecting box.

Preferably, the upper end and the lower end of the front cover and the lower end of the rear cover are fixedly connected with a group of fastening bolts, and the front ends of the fastening bolts are in threaded connection with the outer sides of the fixing blocks welded on the two sides of the upper end and the lower end of the outer box body of the heat exchanger.

Preferably, the upper part and the lower part of the right side of the rear cover are respectively provided with a cold water inlet and a hot water return port, and the cold water inlet is arranged at the upper end of the hot water return port.

Preferably, a steam inlet is formed in one side of the upper end of the outer box body of the heat exchanger, and the upper end of the steam inlet is fixedly connected with an exhaust box of a low-pressure cylinder of the steam turbine through a flange plate.

(III) advantageous effects

The utility model provides an economizer system of high back pressure heating system heating raw water possesses following beneficial effect:

(1) the utility model has the advantages that the cold water pipe, the hot water return pipe, the cold water inlet and the hot water return port are arranged, the effect of heating the circulating water of the heating system and the raw water of the chemical water system simultaneously is achieved, the problem that the prior device can not have the function of heating the circulating water of the heating system and the raw water of the chemical water system, the inconvenience of use is caused is solved, the cold water inlet and the hot water return port are respectively arranged at the upper end and the lower end on the right side of the rear cover, the raw water is conveyed into the cold water pipe through the cold water inlet, the hot water return water is conveyed into the return pipe through the hot water return port, the exhaust box of the low-pressure cylinder of the steam turbine conveys steam into the outer shell of the heat exchanger through the steam inlet, the steam condensation heat dissipation performance is utilized to heat the raw water and the hot water return water in the, the heated hot water backwater flows to the heating system through the hot water backwater port again by the backwater pipe, and then the circulating water of the heating system and the raw water of the chemical water system are heated simultaneously.

(2) The utility model has the advantages that the water pump, the filter screen and the active carbon are arranged, the water filtering and purifying device can filter and purify water in the heating process in real time, the energy-saving and emission-reducing effects are realized, the problem that the related measures for filtering and purifying water are not available in the heating process of the existing device is solved, and the energy-saving and emission-reducing effects are not ideal, when the raw water and the hot water return water are heated, the filter screen is arranged on one side inside the cold water pipe and the return water pipe, the active carbon is arranged in the middle of the left side of the filter screen, the filtering and purifying effects for the raw water and the hot water return water during heating are realized, the filter screen and the active carbon are arranged on the upper end and the lower end of the top in the condensed water collecting box, the recovered condensed water is filtered and purified, the active carbon is rotatably connected inside the condensed, the active carbon is enabled to rotate under the action of the bearing seat, impurities in condensed water are circularly adsorbed, meanwhile, water is supplied to a cold water inlet or a hot water return water inlet from a water supply port through a water outlet pipe by a water pump according to the difference of the temperature of the condensed water, the water resource and the heat source are recycled, and energy conservation and emission reduction are realized.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

FIG. 3 is a schematic view of the inside of the outer box of the heat exchanger of the present invention;

fig. 4 is an enlarged schematic view of the point B in fig. 1 according to the present invention.

The reference numbers in the figures are: 1. a front cover; 2. a water outlet; 3. fastening a bolt; 4. a steam turbine low pressure cylinder exhaust box; 5. a water outlet; 6. a heat exchanger outer box; 7. a fixed block; 8. a rear cover; 9. filtering with a screen; 10. a water pump; 11. a water inlet pipe; 12. activated carbon; 13. a water supply port; 14. a water outlet pipe; 15. a cold water inlet; 16. a hot water return port; 17. a flange plate; 18. a steam inlet; 19. a first large diameter water inlet; 20. a second large diameter water inlet; 21. a port; 22. a cold water pipe; 23. a water return pipe; 24. mounting a plate; 25. a bearing seat; 26. and a condensed water collecting box.

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.

As shown in fig. 1-4, the utility model provides a technical solution: an energy-saving system for heating raw water by a high-backpressure heat supply system comprises a heat exchanger outer box body 6, wherein the front end and the rear end of the heat exchanger outer box body 6 are respectively in threaded connection with a front cover 1 and a rear cover 8, a group of fastening bolts 3 are fixedly connected with the upper end and the lower end of the front cover 1 and the lower end of the rear cover 8, the front ends of the fastening bolts 3 are in threaded connection with the outer sides of fixing blocks 7 welded on the two sides of the upper end and the lower end of the outer box body 6 of the heat exchanger, a water outlet 2 is arranged at the central position of the outer side of the front cover 1, a cold water inlet 15 and a hot water return port 16 are respectively arranged on the upper portion and the lower portion of the right side of the rear cover 8, the cold water inlet 15 and the hot water return port 16 are respectively arranged on the upper portion and the lower portion of the right side of the rear cover 8, raw water is conveyed into a cold water pipe 22 through the cold water inlet, by utilizing the performance of steam condensation heat dissipation, raw water and hot water return water in a cold water pipe 22 and a return water pipe 23 are heated, the heated raw water flows from a water outlet 2 to a chemical water system through an opening 21, the heated hot water return water flows from the return water pipe 23 to a heat supply system through a hot water return water port 16 again, so that the circulating water of the heat supply system and the raw water of the chemical water system are heated simultaneously, a second large-diameter water inlet 20 is in threaded connection with the middle section of the top of the outer box 6 of the heat exchanger, a first large-diameter water inlet 19 is in threaded connection with the left side of the middle section of the top of the outer box 6 of the heat exchanger, the upper ends of the first large-diameter water inlet 19 and the second large-diameter water inlet 20 are movably connected with a flange plate 17, a steam inlet 18 is arranged on one side of the upper end of the outer, a cold water pipe 22 is arranged at the upper end in the outer heat exchanger box 6, the cold water pipe 22 extends into a through hole 21 arranged at the upper part of the right side of the front cover 1, a return water pipe 23 is arranged at the lower end in the outer heat exchanger box 6, a filter screen 9 is fixedly connected to one side in the cold water pipe 22 and the return water pipe 23, activated carbon 12 is arranged at the left side of the filter screen 9, a condensate water collecting box 26 is arranged below the outer heat exchanger box 6, a water supply opening 13 is arranged at the central position of the right side of the condensate water collecting box 26, a water outlet pipe 14 is sleeved in the water supply opening 13, the filter screen 9 is fixedly connected to the upper end in the condensate water collecting box 26 through a mounting plate 24, the activated carbon 12 is rotatably connected to the lower end in the condensate water collecting box 26 through a bearing seat 25, the middle part of, the model of the water pump 10 is HG180, which belongs to the prior art, a filter screen 9 is arranged on one side inside a cold water pipe 22 and a return water pipe 23, an active carbon 12 is arranged in the middle of the left side of the filter screen 9, the filtering and purifying effects of raw water and hot water return water during heating are realized, the filter screen 9 and the active carbon 12 are arranged on the upper end and the lower end of the inner top of a condensed water collecting box 26, the recovered condensed water is filtered and purified, the active carbon 12 is rotatably connected inside the condensed water collecting box 26 through a bearing seat 25, the condensed water enters the condensed water collecting box 26 through a water inlet pipe 11 through a water outlet 5 to form the impact effect on the active carbon 12, so that the active carbon 12 rotates under the action of the bearing seat 25 to circularly adsorb impurities in the condensed water, meanwhile, the water is supplied to a cold water inlet 15 or a hot water return port 16 through a water, realizes the recycling of water resources and heat sources and realizes energy conservation and emission reduction.

The working principle is as follows: when the device is used, the upper end and the lower end on the right side of the rear cover 8 are respectively provided with a cold water inlet 15 and a hot water return port 16, raw water is conveyed into a cold water pipe 22 through the cold water inlet 15, hot water return water is conveyed into a return water pipe 23 through the hot water return port 16, the exhaust box 4 of the low-pressure steam turbine cylinder is connected with a steam inlet 18 through a flange 17, steam is conveyed into the outer box body 6 of the heat exchanger through the steam inlet 18, the raw water and the hot water return water in the cold water pipe 22 and the return water pipe 23 are heated by utilizing the performance of steam condensation and heat dissipation, the heated raw water flows to a chemical water system from a water outlet 2 in the middle of one side of the front cover 1 through a through port 21, the heated hot water return water flows to a heat supply system through the hot water return port 16 again through the return water pipe 23, further, the circulating water of the heat supply system and the raw water of the chemical, in order to keep the stability of the structure of the heat exchanger, a second large-diameter water inlet 20 and a first large-diameter water inlet 19 are arranged at the middle part of the upper end of the outer box body 6 of the heat exchanger and at one side close to the middle part, so as to realize the heating of large-flow water, in the using process of the system, a filter screen 9 is arranged at one side inside a cold water pipe 22 and a return water pipe 23 through a mounting plate 24, activated carbon 12 is arranged at the middle part of the left side of the filter screen 9, so as to realize the filtering and purifying effects on raw water and hot water return water during heating, the filter screen 9 and the activated carbon 12 are arranged at the upper end and the lower end of the top inside a condensate water collecting box 26, so as to perform the filtering and purifying effects on the recovered condensate water, the activated carbon 12 is rotatably connected inside the condensate water collecting box 26 through a bearing seat 25, the condensate water enters the, impurities in the condensed water are circularly adsorbed, and meanwhile, water is supplied to a cold water inlet 15 or a hot water return port 16 from a water supply port 13 through a water outlet pipe 14 by using a water pump 10 according to different temperatures of the condensed water, so that water resources and heat sources are recycled, and energy conservation and emission reduction are realized.

To sum up can, the utility model discloses a set up cold water inlet 15, hot water return water mouth 16, comdenstion water collecting box 26, filter screen 9 and active carbon 12 structure, solved and to have among the prior art that current system can't have the function of heating system circulating water and chemical water system raw water, unrelated carries out filtration purification's measure to water, and the unsatisfactory problem of energy saving and emission reduction effect.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 an economizer system of high back pressure heating system heating raw water, includes outer box (6) of heat exchanger, its characterized in that: the front end and the rear end of the outer box body (6) of the heat exchanger are respectively in threaded connection with a front cover (1) and a rear cover (8), a water outlet (2) is formed in the central position of the outer side of the front cover (1), a second large-diameter water inlet (20) is in threaded connection with the middle section of the top of the outer box body (6) of the heat exchanger, a first large-diameter water inlet (19) is in threaded connection with the left side of the middle section of the top of the outer box body (6) of the heat exchanger, a flange plate (17) is movably connected to the upper ends of the first large-diameter water inlet (19) and the second large-diameter water inlet (20), a cold water pipe (22) is installed at the inner upper end of the outer box body (6) of the heat exchanger, the cold water pipe (22) extends into a through hole (21) formed in the upper portion of the right side of the front cover, and filter screen (9) left side is provided with active carbon (12), heat exchanger outer box (6) below is provided with condensate water collecting box (26), mounting panel (24) fixedly connected with filter screen (9) are passed through to the upper end in condensate water collecting box (26), the lower extreme rotates through bearing frame (25) in condensate water collecting box (26) and is connected with active carbon (12).

2. The energy saving system for heating raw water of high back pressure heating system according to claim 1, wherein: a water supply port (13) is formed in the center of the right side of the condensed water collecting box (26), and a water outlet pipe (14) is sleeved inside the water supply port (13).

3. The energy saving system for heating raw water of high back pressure heating system according to claim 1, wherein: the middle part of the upper end of the condensed water collecting box (26) is connected with a water outlet (5) arranged in the middle of the bottom end of the outer box body (6) of the heat exchanger in a sleeved mode through a water inlet pipe (11), and a water pump (10) is placed in the middle of the bottom end of the condensed water collecting box (26).

4. The energy saving system for heating raw water of high back pressure heating system according to claim 1, wherein: the upper end and the lower end of the front cover (1) and the rear cover (8) are fixedly connected with a group of fastening bolts (3), and the front ends of the fastening bolts (3) are in threaded connection with the outer sides of fixing blocks (7) welded on the two sides of the upper end and the lower end of the outer box body (6) of the heat exchanger.

5. The energy saving system for heating raw water of high back pressure heating system according to claim 1, wherein: the upper part and the lower part of the right side of the rear cover (8) are respectively provided with a cold water inlet (15) and a hot water return port (16), and the cold water inlet (15) is arranged at the upper end of the hot water return port (16).

6. The energy saving system for heating raw water of high back pressure heating system according to claim 1, wherein: a steam inlet (18) is formed in one side of the upper end of the outer box body (6) of the heat exchanger, and the upper end of the steam inlet (18) is fixedly connected with an exhaust box (4) of a low-pressure cylinder of a steam turbine through a flange plate (17).