Triple-effect evaporation dead steam water preheating system

Abstract

The utility model discloses a triple-effect evaporation dead steam water preheating system, and belongs to the technical field of triple-effect evaporation dead steam water preheating, the preheating system comprises a newly added preheater and a dead steam preheater, the input end of the newly added preheater is fixedly provided with a mixing box, the outer side of the mixing box is respectively provided with a first input pipe and a second input pipe, and the first input pipe and the second input pipe are communicated with each other. A dead steam preheater is fixedly installed at one end of the first input pipe, the output end of the newly-added preheater is fixedly connected with a first-stage condensation preheater, the output end of the first-stage condensation preheater is fixedly connected with a first effect, the first effect, a second effect and a third effect are sequentially connected, the output end of the third effect is fixedly connected with one end of the second input pipe, and the output end of the second input pipe is fixedly connected with the third input pipe. According to the system, due to the fact that multi-stage utilization of heat is achieved, consumption of external steam is reduced, carbon emission and environmental pollution are reduced, meanwhile, different heat sources can be rapidly mixed, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to three effect evaporation spent steam water preheating technical field, and specifically, three effect evaporation spent steam water preheating system. BACKGROUND

[0002] At present, the three effect evaporation procedure in the water treatment field is to concentrate the wastewater after acidification and oxidation treatment through a three effect evaporation device, and then filter and remove sodium sulfate and other substances in the wastewater. This process mainly uses live steam to heat and raise the temperature of the wastewater in the first effect to the boiling point, and then uses the heat of the secondary steam of the first effect to raise the temperature of the wastewater in the second effect to the boiling point, and then uses the secondary steam of the second effect to raise the temperature of the wastewater in the third effect to the boiling point, gradually evaporating and concentrating the wastewater. The concentrated finished liquid is then recycled and filtered through a plate filter to remove salt substances in the wastewater.

[0003] However, there are still shortcomings and deficiencies in the prior art or products. Although the current three effect evaporation procedure has adopted secondary steam to heat and raise the temperature of each effect, and uses steam condensate water and the secondary steam of the third effect to preheat the original wastewater, the recovery and utilization efficiency of the secondary steam heat is still very low. At the same time, the long operation cycle, large water treatment capacity, and large equipment of the three effect evaporation procedure result in a large steam consumption of the three effect evaporation procedure. In addition, the original liquid of the three effect evaporation is only preheated by a spent steam preheater and a first effect steam condensate water preheater, and the preheating effect is not ideal. More importantly, the spent steam water generated by the three effect evaporation has a high temperature (about 75℃), which not only causes difficulty for the subsequent biochemical treatment system, but also makes it difficult to use aerobic active bacteria to further decompose organic matter. In addition, high temperature volatilization easily produces a large amount of waste gas, which has an adverse effect on the environment, and the mixing efficiency of the preheated gas is low. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above deficiencies, the utility model provides a three effect evaporation spent steam water preheating system, which aims to improve the problems of poor preheating effect and low preheated gas mixing efficiency.

[0005] The utility model is implemented in the following way: the three effect evaporation spent steam water preheating system comprises a newly added preheater and a spent steam preheater, the input end of the newly added preheater is fixedly installed with a mixing box, the outer side of the mixing box is respectively installed with a first input pipe and a second input pipe, the first input pipe is fixedly installed at one end with the spent steam preheater, the output end of the newly added preheater is fixedly connected with a first condensation preheater, the output end of the first condensation preheater is fixedly connected with a first effect, the first effect, a second effect and a third effect are connected in sequence, and the output end of the third effect is fixedly connected with one end of the second input pipe.

[0006] In the preferred technical scheme of the utility model, the first condensation preheater is connected with a corresponding first effect condensate tank.

[0007] In the preferred technical scheme of the utility model, the mixed box is equipped with a discharge hole, the new preheater is equipped with a feeding hole outside, and the discharge hole and the feeding hole are communicated.

[0008] In the preferred technical scheme of the utility model, the first input pipe and the second input pipe are arranged on the adjacent two sides of the mixed box, the inner wall of the mixed box is fixedly installed with a guide plate, and the first input pipe and the second input pipe are symmetrically arranged on the two sides of the guide plate.

[0009] In the preferred technical scheme of the utility model, a plurality of guide plates are symmetrically fixedly installed between the two sides of the inner wall of the mixed box, the plurality of guide plates are equidistantly installed on the two sides of the inner wall of the mixed box, and the guide plates on the two sides are arranged in a staggered manner.

[0010] In the preferred technical scheme of the utility model, the plurality of guide plates form a serpentine channel inside the mixed box.

[0011] In the preferred technical scheme of the utility model, reinforcing strips are fixedly installed on the two sides of the guide plate, one side of the reinforcing strip is arranged in an inclined manner, and the reinforcing strip is fixedly connected with the inner wall of the mixed box.

[0012] In the preferred technical scheme of the utility model, a rotating shaft is rotatably installed on one side of the inner wall of the mixed box, a support plate is fixedly installed on one side of the inner wall of the mixed box, one end of the rotating shaft slidably penetrates through the plurality of guide plates and is rotatably connected with one side of the support plate, a plurality of mixing fans are fixedly installed on the rotating shaft, and a motor is installed on one end of the rotating shaft.

[0013] In the preferred technical scheme of the utility model, a support is fixedly installed on one side of the mixed box, the support is arranged in a U shape, the motor is fixedly installed on one side of the inner wall of the support, a heat insulation disc is fixedly installed on the output end of the motor, one end of the rotating shaft penetrates through one side of the mixed box and is fixedly connected with one side of the heat insulation disc, and the heat insulation disc is rotatably connected with the outside of the mixed box.

[0014] The utility model discloses an advantageous effect is: the utility model discloses three -effect evaporation steam -water preheating system through above -mentioned design, the initial heat source enters the steam preheater preheating and enters the mixing box again, and the mixing box passes to the heat source in the new preheater preheating, and then passes to the new preheater output in the first -stage condensation preheater, and finally the heat source preheating enters one -effect, two -effect and three -effect in proper order, and the heat source of three -effect discharge passes through the second input pipe and is recovered to the mixing box again, the heat source recovered at this time mixes through the serpentine channel with the initial heat source, and simultaneously, the motor is started and drives the heat insulation disc to rotate, and the heat insulation disc rotates through the pivot rotation, and the pivot rotation drives the mixing fan rotation and improves the mixing efficiency, and the mixed gas source is preheated again and uses, and this system reduces the consumption of external steam because the multistage utilization of heat is realized, thereby reducing carbon emission and environmental pollution, and simultaneously, different heat sources can be mixed quickly, thereby improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 It is the structure schematic drawing of three -effect evaporation steam -water preheating system provided by the utility model embodiments;

[0017] Figure 2 It is the structure schematic drawing of mixing box and new preheater provided by the utility model embodiments;

[0018] Figure 3 It is the side view of mixing box provided by the utility model embodiments;

[0019] Figure 4 It is the internal structure schematic drawing of mixing box provided by the utility model embodiments.

[0020] In the drawing: 110, new preheater;120, mixing box;121, first input pipe;122, second input pipe;123, guide plate;124, guide vane;125, reinforcing strip;130, pivot;131, support plate;132, mixing fan;133, motor;134, support;135, heat insulation disc. DETAILED DESCRIPTION

[0021] In order to make the purposes, technical schemes and advantages of the embodiments of the utility model clearer, the technical schemes in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figure 1 And Figure 2 The utility model provides technical scheme: three effect evaporative steam water preheating system, including new preheater 110 and steam preheater, the input end of new preheater 110 is fixedly installed mixed box 120, mixed box 120 outside is respectively equipped with first input pipe 121 and second input pipe 122, first input pipe 121 one end is fixedly installed with steam preheater, the output end of new preheater 110 is fixedly connected with primary condensing preheater, the output end of primary condensing preheater is fixedly connected with one effect, one effect, two effects and three effects are connected in turn, the output end of three effects is fixedly connected with one end of second input pipe 122, and primary condensing preheater is connected with corresponding one effect condensate tank.

[0023] In some specific embodiments, the mixed box 120 is provided with a discharge hole, and the new preheater 110 is provided with an inlet hole. The discharge hole and the inlet hole are communicated, so as to facilitate the heat source to be transported from the mixed box 120 to the new preheater 110.

[0024] Please refer to Figure 3 And Figure 4 The first input pipe 121 and the second input pipe 122 are arranged on the adjacent two sides of the mixed box 120. The inner wall of the mixed box 120 is fixedly installed with a guide plate 123. The first input pipe 121 and the second input pipe 122 are symmetrically arranged on the two sides of the guide plate 123. A plurality of guide plates 124 are symmetrically fixedly installed between the inner walls of the mixed box 120. The plurality of guide plates 124 are equidistantly installed on the inner walls of the mixed box 120, and the guide plates 124 on the two sides are arranged in a staggered manner.

[0025] In some specific embodiments, the plurality of guide plates 124 form a serpentine channel inside the mixed box 120, which increases the distance of the heat source mixed flow, thereby improving the mixing efficiency.

[0026] In some specific embodiments, the guide plates 124 are fixedly installed with reinforcing strips 125 on the two sides. One side of the reinforcing strip 125 is arranged in an inclined manner. The reinforcing strip 125 is fixedly connected with the inner wall of the mixed box 120. The reinforcing strip 125 improves the stability of the guide plates 124.

[0027] In some specific embodiments, the inner wall of the mixing box 120 is rotatably connected with a rotating shaft 130, the inner wall of the mixing box 120 is fixedly connected with a support plate 131, one end of the rotating shaft 130 is slidably connected with the plurality of flow guides 124 and rotatably connected with one side of the support plate 131, a plurality of mixing fans 132 are fixedly connected with the rotating shaft 130, a motor 133 is fixedly connected with one end of the rotating shaft 130, a bracket 134 is fixedly connected with one side of the mixing box 120, the bracket 134 is in a U shape, the motor 133 is fixedly connected with one side of the inner wall of the bracket 134, a heat insulation disc 135 is fixedly connected with the output end of the motor 133, one end of the rotating shaft 130 is connected with one side of the heat insulation disc 135, the heat insulation disc 135 is rotatably connected with the outer wall of the mixing box 120, and the heat insulation disc 135 prevents heat energy from being transferred to the motor 133 to prevent the motor 133 from being damaged due to overheating.

[0028] Working principle: the initial heat source enters the mixing box 120 after being preheated by the exhaust steam preheater, the mixing box 120 transfers the heat source to the new preheater 110 for preheating, and then the new preheater 110 outputs the heat source to the first-stage condensation preheater, and finally the preheated heat source enters the first-stage, second-stage and third-stage condensation preheaters in sequence, and the heat source discharged from the third-stage condensation preheater is recovered to the mixing box 120 through the second input pipe 122, at this time, the recovered heat source is mixed with the initial heat source through the serpentine channel, and the motor 133 is started to drive the heat insulation disc 135 to rotate, the heat insulation disc 135 rotates through the rotating shaft 130, the rotating shaft 130 rotates to drive the mixing fans 132 to rotate to improve the mixing efficiency, and the mixed gas source is preheated again for use.

[0029] The above only describes preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A triple-effect evaporator flue gas water preheat system, characterized by, The application relates to a preheater and a steam preheater, wherein the input end of the preheater is fixedly installed with a mixing box, the outer side of the mixing box is respectively installed with a first input pipe and a second input pipe, the first input pipe is fixedly installed at one end with the steam preheater, the output end of the preheater is fixedly connected with a first-stage condensing preheater, the output end of the first-stage condensing preheater is fixedly connected with a one-effect unit, a two-effect unit and a three-effect unit are connected in sequence, and the output end of the three-effect unit is fixedly connected with one end of the second input pipe.

2. The triple-effect evaporative flue gas water preheat system of claim 1, wherein, The first-stage condensing preheater is connected with a corresponding one-effect condensing water tank.

3. The triple-effect evaporative flue gas water preheat system of claim 1, wherein, The mixing box is provided with a discharging hole, the preheater is provided with a feeding hole outside, and the discharging hole and the feeding hole are communicated.

4. The triple-effect evaporative flue gas water preheat system of claim 1, wherein, The first input pipe and the second input pipe are arranged on two adjacent sides of the mixing box, and the inner wall of the mixing box is fixedly installed with a guide plate.

5. The triple-effect evaporative flue gas water preheat system of claim 1, wherein, A plurality of guide plates are symmetrically fixedly installed between the inner walls of the mixing box, the guide plates are equidistantly installed on the inner walls of the mixing box, and the guide plates on the two sides are staggered.

6. The triple-effect evaporative flue gas water preheat system of claim 5, wherein, The guide plates form a serpentine channel in the mixing box.

7. The triple-effect evaporative flue gas water preheat system of claim 5, wherein, Reinforcing strips are fixedly installed on the two sides of the guide plates, one side of the reinforcing strip is obliquely arranged, and the reinforcing strip is fixedly connected with the inner wall of the mixing box.

8. The triple-effect evaporative flue gas water preheat system of claim 5, wherein, A rotating shaft is rotatably installed on one side of the inner wall of the mixing box, a supporting plate is fixedly installed on one side of the inner wall of the mixing box, one end of the rotating shaft is slidably penetrated through the guide plates and rotatably connected with one side of the supporting plate, a plurality of mixing fans are fixedly installed on the rotating shaft, and a motor is installed at one end of the rotating shaft.

9. The triple-effect evaporative flue gas water preheat system of claim 8, wherein, A bracket is fixedly installed on one side of the mixing box, the bracket is arranged in a U shape, the motor is fixedly installed on one side of the inner wall of the bracket, a heat insulation disc is fixedly installed at the output end of the motor, and one end of the rotating shaft is penetrated through one side of the mixing box and fixedly connected with one side of the heat insulation disc.

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