System of SGT-800 type gas turbine for heating and increasing production water temperature by using cooling return water temperature rise

Abstract

The utility model relates to the technical field of energy-saving and water-saving system equipment, and discloses an SGT-800 type gas turbine system for increasing production water temperature by using cooling return water temperature rise, which comprises a heat exchanger and a condensing tower, a heat exchange mechanism is arranged on one side of the condensing tower, the heat exchange mechanism comprises a heat exchanger, a plurality of heat exchange fins are arranged in the heat exchanger, and the heat exchange fins are arranged on the other side of the condensing tower. A first water inlet hole, a second water inlet hole, a first water outlet hole and a second water outlet hole are formed in the four corners of each heat exchange piece correspondingly, and a first drainage groove and a second drainage groove are formed in one side of the outer wall of each heat exchange piece. In the utility model, the plate-type water-water heating heat exchanger is adopted, and the original steam heating mode is optimized into a closed cooling water return heating mode. On the system, a heating pipeline enters and returns, that is, inlet water is closed cooling water return water, enters a circulating water return main pipe after heat exchange and enters a cooling tower, a raw water heating pipeline raw water workshop enters a heat exchanger, and enters a boiler make-up water workshop for use after heat regeneration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the system equipment technical field of energy -conserving and water -saving, especially to a system of SGT -800 type gas turbine utilizes cooling backwater temperature rise heating to promote production water temperature. BACKGROUND

[0002] The desalted water preparation system mostly adopts the mode of ultrafiltration plus reverse osmosis plus ion exchange desalination to treat the incoming water, and as a boiler makeup water source, the inlet water source temperature has certain requirements, that is, the system inlet water temperature needs to be kept at 20~25 DEG C during spring and winter operation to ensure the reliable and economic operation of the membrane equipment. When the water temperature is as low as 0~5 DEG C, the water temperature is low, the reverse osmosis membrane filter hole is small, the water flow of the membrane is reduced, the waste water discharge is increased, and at the same time, the reverse osmosis membrane filter hole is small, the equipment pressure is increased, the reverse osmosis membrane is compacted, and the service life of the reverse osmosis membrane is affected, so it is necessary to install a raw water heater to improve the equipment inlet water temperature and ensure the safe and economic operation of the equipment. The incoming water is heated by a shell-and-tube steam-water heater, and the water is heated by steam. That is, a steam is introduced through the raw water heater to heat the raw water to reach the production water inlet temperature, and the steam parameters are: steam flow 10 t / h, heating water quantity 240 t / h, and normal operation. That is, 20,000 tons of high-quality steam is used every year, the closed cooling water return water temperature is actually reduced, the open circulation water cooling water quantity is also reduced, the operation time of the mechanical tower fan is reduced, and 20,000 kW.h is saved every year.

[0003] However, the condensed water after condensation directly enters the industrial wastewater pool, and there is a great waste of production, that is, there are many problems every year, the desalted water raw water heater needs 20,000 tons of high-quality steam every year, and all the condensed water is discharged after condensation, which is a great waste. The directly discharged condensed water leads to a large amount of makeup water of the unit, and there is a certain heat loss, 1,000 tons of standard coal are burned, the desalted water preparation system is operated for more than 300 hours every year, and there is more consumption of raw water and reagent, and the equipment aging speed is accelerated.

[0004] Therefore, the skilled person in the art provides a system for SGT-800 type gas turbine to utilize cooling backwater temperature rise heating to promote production water temperature to solve the problems in the background art. UTILITY MODEL CONTENTS

[0005] The utility model discloses a system for heating and raising production water temperature by using cooling backwater temperature rise of SGT-800 gas turbine, which is used to solve the problems in the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] A system for heating and raising production water temperature by using cooling backwater temperature rise of SGT-800 gas turbine, which comprises a heat exchanger and a condensing tower.

[0008] The heat exchange mechanism comprises a heat exchanger, and a plurality of heat exchange fins are arranged in the heat exchanger; first water inlet holes, second water inlet holes, first water outlet holes and second water outlet holes are arranged at four corners of the heat exchange fins respectively; and first drainage grooves and second drainage grooves are arranged on one side of the outer wall of the heat exchange fins.

[0009] The heat exchanger is a plate-type water-water heating heat exchanger, and the original steam heating is optimized to a closed cooling water backwater heating mode.

[0010] Further, first water inlet pipes, second water inlet pipes, first water outlet pipes and second water outlet pipes are arranged at the first water inlet holes, the second water inlet holes, the first water outlet holes and the second water outlet holes at the four corners of the outer wall of the heat exchanger respectively.

[0011] Through the above technical scheme, heat exchange of cold water and hot water is realized in the heat exchanger.

[0012] Further, the first water outlet pipes and the second water inlet pipes are connected to the condensing tower at one end.

[0013] Through the above technical scheme, the condensing water is recycled.

[0014] Further, the first water inlet pipes are connected to the raw water workshop.

[0015] Through the above technical scheme, hot water is provided for the device.

[0016] Further, the second water outlet pipes are connected to the boiler feed water workshop.

[0017] Through the above technical scheme, hot water is provided for the boiler feed water workshop.

[0018] Further, the first water inlet pipes and the second water outlet pipes are both Seamless steel pipe

[0019] By the above technical scheme, the temperature of hot water is kept at a certain level.

[0020] Further, the first and second drainage grooves are opposite to each other.

[0021] By the above technical scheme, the cold and hot water can exchange heat.

[0022] Further, the heat exchange fins are arranged to be separated from each other.

[0023] By the above technical scheme, the cold and hot water can exchange heat.

[0024] The utility model has the advantages of:

[0025] 1. The system for raising production water temperature by utilizing cooling return water temperature rise heating of the SGT-800 gas turbine, which adopts a plate-type water-water heating heat exchanger, optimizes the original steam heating to a closed cooling water return water heating mode, greatly saves the use of steam, greatly saves energy, and thus reduces the use cost.

[0026] 2. The system for raising production water temperature by utilizing cooling return water temperature rise heating of the SGT-800 gas turbine, which adopts a plate-type water-water heating heat exchanger, optimizes the original steam heating to a closed cooling water return water heating mode, greatly reduces the use of cooling water, can recycle the cooling water, saves the power consumption, and thus greatly improves the income brought by the device. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The utility model provides a kind of SGT-800 type gas turbine system for raising production water temperature by utilizing cooling return water temperature rise heating of the system of the utility model, and its axial view is shown in the figure;

[0028] Figure 2 The utility model provides a kind of SGT-800 type gas turbine system for raising production water temperature by utilizing cooling return water temperature rise heating of the system of the utility model, and its sectional view is shown in the figure;

[0029] Figure 3 The utility model provides a kind of SGT-800 type gas turbine system for raising production water temperature by utilizing cooling return water temperature rise heating of the heat exchange mechanism of the system of the utility model, and its axial view is shown in the figure;

[0030] Figure 4 The utility model provides a kind of SGT-800 type gas turbine system for raising production water temperature by utilizing cooling return water temperature rise heating of the heat exchange mechanism of the system of the utility model, and its internal structure schematic view is shown in the figure;

[0031] Figure 5The utility model provides a kind of heat exchange mechanism's section view of system of SGT-800 type gas turbine for the utility model utilizes cooling backwater temperature rise heating to promote production water temperature.

[0032] Legend:

[0033] 1, heat exchange mechanism;101, heat exchanger;102, heat exchange fin;103, first water inlet hole;104, first drainage groove;105, first water outlet hole;106, second water inlet hole;107, second water outlet hole;108, second drainage groove;2, first water inlet pipe;3, second water outlet pipe;4, first water outlet pipe;5, second water inlet pipe;6, condensing tower. Specific embodiment

[0034] The utility model will be described clearly and completely in the technical scheme in the specific embodiment of the utility model with the drawings in the specific embodiment of the utility model, obviously, the described specific embodiment is only part of the specific embodiment of the utility model, instead of all specific embodiments. Based on the specific embodiment in the utility model, all other specific embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0035] Refer to Figure 1 , Figure 3 and Figure 4 , the utility model provides a kind of specific embodiment: a kind of SGT-800 type gas turbine utilizes cooling backwater temperature rise heating to promote production water temperature's system, including heat exchanger 101 and condensing tower 6, condensing tower 6 side is provided with heat exchange mechanism 1;

[0036] Heat exchange mechanism 1 includes heat exchanger 101, heat exchanger 101 is provided with multiple heat exchange fins 102 inside, and first water inlet hole 103, second water inlet hole 106, first water outlet hole 105 and second water outlet hole 107 are respectively arranged at the four corners of heat exchange fin 102, and first drainage groove 104 and second drainage groove 108 are arranged on the side of the outer wall of heat exchange fin 102, adopt sheet type water-water heating heat exchanger, originally steam heating is optimized to closed cooling water backwater heating mode, and the stripe of first drainage groove 104 and second drainage groove 108 is opposite, and it is convenient for cold water hot water flow exchange heat, and heat exchange fin 102 is arranged as first drainage groove 104 and second drainage groove 108 are separated, and it is convenient for cold water hot water exchange heat.

[0037] Refer to Figure 1 , Figure 2 , Figure 4 and Figure 5, the first water inlet pipe 2, the second water inlet pipe 5, the first water outlet pipe 4 and the second water outlet pipe 3 are arranged at the four corners of the outer wall of the heat exchanger 101 corresponding to the first water inlet hole 103, the second water inlet hole 106, the first water outlet hole 105 and the second water outlet hole 107, so that the cold water and the hot water realize heat exchange in the heat exchanger 101, one end of the first water inlet pipe 2 and the second water inlet pipe 5 is connected with the condensing tower 6, realizing the recycling of the condensed water, the first water inlet pipe 2 is connected to the raw water workshop, providing hot water for the device, the second water outlet pipe 3 is connected to the boiler water supply workshop, providing hot water for the boiler water supply workshop, and the first water inlet pipe 2 and the second water outlet pipe 3 are both The seamless steel pipe keeps the temperature of the hot water at a certain level.

[0038] Working principle: the hot water is supplemented by the raw water workshop through the first water inlet pipe 2, and the condensing tower 6 provides cold water for the device, the hot water enters the first water inlet hole 103 and flows downward through the second drainage groove 108, so that the condensed water enters the second water inlet hole 106 and flows upward through the first drainage groove 104, so that in the process of flowing, heat exchange is realized through the heat exchange fins 102, so that the temperature of the hot water can be reduced, the hot water with reduced temperature enters the boiler water supply workshop through the second water outlet pipe 3, and the condensed water enters the condensing tower 6 through the first water outlet pipe 4, i.e. the circulating water return main pipe, so as to realize the recycling of the condensed water and save a lot of resources.

[0039] Finally, it should be pointed out that: the above only for the preferred specific embodiments of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing specific embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A system for heating up the production water temperature by using the cooling water temperature rise of an SGT-800 type gas turbine, comprising a heat exchanger (101) and a condenser tower (6), characterized in that: The condensing tower (6) is provided with a heat exchange mechanism (1) on one side; The heat exchange mechanism (1) comprises a heat exchanger (101), a plurality of heat exchange fins (102) are arranged in the heat exchanger (101), first water inlet holes (103), second water inlet holes (106), first water outlet holes (105) and second water outlet holes (107) are arranged at four corners of the heat exchange fins (102) respectively, and first drainage grooves (104) and second drainage grooves (108) are arranged on one side of the outer wall of the heat exchange fins (102).

2. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 1, characterized in that: Corresponding to the first water inlet holes (103), the second water inlet holes (106), the first water outlet holes (105) and the second water outlet holes (107), first water inlet pipes (2), second water inlet pipes (5), first water outlet pipes (4) and second water outlet pipes (3) are arranged at four corners of the outer wall of the heat exchanger (101).

3. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 2, characterized in that: The first water outlet pipes (4) and the second water inlet pipes (5) are connected with the condensing tower (6) at one end.

4. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 2, characterized in that: The first water inlet pipes (2) are connected to the raw water workshop.

5. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 2, characterized in that: The second water outlet pipes (3) are connected to the boiler make-up water workshop.

6. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 2, characterized in that: The first water inlet pipe (2) and the second water outlet pipe (3) are both Seamless steel pipe.

7. The system for heating the production water temperature using the temperature rise of the cooling return water in the SGT-800 gas turbine according to claim 1, characterized in that: The first drainage grooves (104) and the second drainage grooves (108) are opposite in stripe.

8. The system for heating the production water temperature using the temperature rise of the cooling return water of the SGT-800 type gas turbine according to claim 1, characterized in that: The heat exchange fins (102) are arranged to be separated from the first drainage grooves (104) and the second drainage grooves (108).

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