A flash vapor recovery unit

Abstract

The utility model provides a flash steam recovery device belongs to flash steam recovery technical field. This flash steam recovery device includes fixed row expansion vessel, water jet air ejector, drain tank, air inlet pipeline, water inlet pipeline and mixed main pipeline, air inlet pipeline introduces the steam that fixed row expansion vessel discharged to water jet air ejector, water inlet pipeline introduces desalted water to water jet air ejector, and water jet air ejector mixes the high temperature steam and desalted water of introduction fully and exchanges heat and then flows into to drain tank storage reserve through mixed main pipeline. Air inlet pipeline introduces the high temperature steam that fixed row expansion vessel discharged to water jet air ejector inside, and water inlet pipeline introduces desalted water to water jet air ejector inside. Water jet air ejector mixes desalted water and high temperature steam fully and exchanges heat, and the condensate that produces after mixed heat exchange is sent into drain tank inside through mixed main pipeline and is left for reserve. This flash steam recovery device principle is simple and reliable, and the energy -conserving effect is obvious.

Description

Technical Field

[0001] This utility model relates to the field of flash steam recovery technology, and more specifically, to a flash steam recovery device. Background Technology

[0002] Currently, the original design of boiler blowdown expansion tanks directly vents exhaust steam into the atmosphere. The main sources of this exhaust steam are boiler air heater condensate, all boiler body condensate, ammonia-containing non-condensable gas heat tracing condensate, sootblower condensate, continuous boiler blowdown, and blowdown expansion tank condensate. This results in a large amount of exhaust steam being released into the atmosphere through the blowdown expansion tank exhaust pipe. Existing technology has the following drawbacks: 1. The blowdown exhaust steam temperature is around 100℃, and direct release into the atmosphere wastes heat; 2. The blowdown flash steam is of high quality, and releasing it into the atmosphere wastes working fluid, as it cannot be condensed, recovered, or reused. Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides a flash steam recovery device, which aims to improve the problem of heat source waste caused by direct discharge of exhaust steam into the atmosphere and the problem of high quality flash steam being discharged into the atmosphere but wasting working fluid and failing to condense, recover and reuse it.

[0004] This utility model is implemented as follows:

[0005] This utility model provides a flash steam recovery device, including a fixed discharge expansion container, a water jet ejector, a condensate tank, an air inlet pipe, a water inlet pipe, and a mixing main pipe. The air inlet pipe introduces the steam discharged from the fixed discharge expansion container into the water jet ejector, and the water inlet pipe introduces demineralized water into the water jet ejector. The water jet ejector fully mixes and exchanges heat with the introduced high-temperature steam and demineralized water, and then flows into the condensate tank through the mixing main pipe for storage and later use.

[0006] In one embodiment of this utility model, the air intake pipe section is equipped with a first solenoid valve and a first manual valve.

[0007] In one embodiment of this utility model, the water inlet pipe section is equipped with a second solenoid valve, a second manual valve, and a flow control valve.

[0008] In one embodiment of this utility model, a shut-off valve is installed in the main mixing pipeline section.

[0009] In one embodiment of this utility model, the hydrophobic tank includes a water tank assembly and a cleaning assembly. The water tank assembly includes a tank body and a tank cover. The tank cover covers the top of the tank body. A water outlet is provided at the bottom of one side of the tank body, and a water inlet is provided at the top of the tank body to communicate with and cooperate with the main mixing pipeline.

[0010] In one embodiment of this utility model, the cleaning component includes a hydraulic cylinder, a fixing frame, and a cleaning ring. The fixing frame is located inside the housing, the cleaning ring is disposed on the outer ring of the fixing frame, the hydraulic cylinder is mounted on the top of the housing cover, and the output rod end of the hydraulic cylinder slides through the housing cover and is connected to the fixing frame.

[0011] In one embodiment of this utility model, the fixing frame includes a connecting plate and an inner circumference plate, the cleaning ring is disposed on the outer circumference of the connecting plate, and the inner circumference plate connects the output rod end of the hydraulic cylinder to the connecting plate.

[0012] In one embodiment of this utility model, the box cover includes a fixed plate and a folding plate. The fixed plate is fixed to the top of the box body, one side of the folding plate is hinged to the fixed plate, and the other side of the folding plate is fixed to the box body by a fastener. A handle is provided on the folding plate.

[0013] In one embodiment of this utility model, the fixing component includes a support, a screw, and a knob cover. A slot is provided on one side of the folding plate. The support is fixed to the outside of the box. The bottom end of the screw is hinged to the support, and the knob cover is screwed to the top of the screw.

[0014] In one embodiment of this utility model, a base frame is provided at the bottom of the box, and a drain outlet is provided on one side of the box.

[0015] The beneficial effects of this utility model are as follows: The flash steam recovery device obtained by the above design introduces high-temperature steam discharged from the fixed-discharge expansion vessel into the water jet ejector via the air inlet pipe, while simultaneously introducing demineralized water into the water jet ejector via the water inlet pipe. The water jet ejector sprays demineralized water and mixes it thoroughly with the high-temperature steam for heat exchange. The condensate produced after mixing and heat exchange is sent to the condensate tank through the main mixing pipe for later use. This flash steam recovery device requires only a one-time investment, is easy to maintain and repair, has a simple and reliable principle, and exhibits significant energy-saving effects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a flow chart of the flash vapor recovery device provided in this embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the hydrophobic tank structure provided for an embodiment of this utility model;

[0019] Figure 3 A schematic diagram of the folding plate and fixing component provided for an embodiment of this utility model;

[0020] Figure 4 A schematic diagram of the cleaning component structure provided for an embodiment of this utility model.

[0021] In the diagram: 1-Fixed discharge expansion container; 2-Water jet air ejector; 3-Drainage tank; 4-Air inlet pipe; 5-Water inlet pipe; 6-Mixing main pipe; 7-First solenoid valve; 8-First manual valve; 9-Second solenoid valve; 10-Second manual valve; 11-Flow control valve; 12-Stop valve; 20-Water tank assembly; 210-Tank body; 220-Tank cover; 221-Fixing plate; 222-Folding plate; 230-Outlet; 240-Inlet; 250-Drain outlet; 260-Fixing component; 261-Support; 262-Screw; 263-Knob cover; 270-Base frame; 280-Handle; 30-Cleaning component; 310-Hydraulic cylinder; 320-Fixing frame; 321-Connecting plate; 322-Inner enclosure plate; 330-Cleaning ring strip. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example

[0024] Please see Figures 1-4 This invention provides a flash steam recovery device, comprising a fixed discharge expansion vessel 1, a water jet ejector 2, a condensate tank 3, an air inlet pipe 4, a water inlet pipe 5, and a mixing main pipe 6. The air inlet pipe 4 introduces the steam discharged from the fixed discharge expansion vessel 1 into the water jet ejector 2, and the water inlet pipe 5 introduces demineralized water into the water jet ejector 2. The water jet ejector 2 thoroughly mixes and exchanges heat with the introduced high-temperature steam and demineralized water before flowing into the condensate tank 3 through the mixing main pipe 6 for storage and later use.

[0025] The air inlet pipe 4 introduces the high-temperature steam discharged from the fixed-discharge expansion vessel 1 into the water jet ejector 2, while the water inlet pipe 5 introduces demineralized water into the water jet ejector 2. The water jet ejector 2 sprays the demineralized water and mixes it thoroughly with the high-temperature steam for heat exchange. The condensate produced after mixing and heat exchange is sent to the condensate tank 3 through the main mixing pipe 6 for later use. This flash steam recovery device is applicable to any flash steam venting, recovery, and reuse technology, has a wide range of applications, requires only a one-time investment, has excellent energy-saving effects, and is convenient for later maintenance and repair with low costs.

[0026] In the above specific embodiment, the air intake pipe section 4 is equipped with a first solenoid valve 7 and a first manual valve 8. The water intake pipe section 5 is equipped with a second solenoid valve 9, a second manual valve 10, and a flow control valve 11. The mixing main pipe section 6 is equipped with a shut-off valve 12.

[0027] In the above specific embodiment, the drainage tank 3 includes a water tank assembly 20 and a cleaning assembly 30. The water tank assembly 20 includes a tank body 210 and a tank cover 220. The tank cover 220 covers the tank body 210. A water outlet 230 is provided at the bottom of one side of the tank body 210, and a water inlet 240 is provided at the top of the tank body 210 to communicate with and cooperate with the main mixing pipe 6. The cleaning assembly 30 includes a hydraulic cylinder 310, a fixing frame 320, and a cleaning ring 330. The fixing frame 320 is located inside the tank body 210, and the cleaning ring 330 is provided on the outer ring of the fixing frame 320. The hydraulic cylinder 310 is installed on the top of the tank cover 220, and the output rod end of the hydraulic cylinder 310 slides through the tank cover 220 and connects to the fixing frame 320. A base frame 270 is provided at the bottom of the tank body 210, and a drain outlet 250 is provided on one side of the tank body 210.

[0028] Valves are installed on the water outlet 230 and the drain outlet 250 on both sides of the tank 210. The valves on the water outlet 230 and the drain outlet 250 are closed. The hydraulic cylinder 310 in the cleaning component 30 drives the fixing frame 320 and the cleaning ring 330 to move back and forth in the vertical direction. The moving cleaning ring 330 will clean the impurities attached to the inner wall of the tank 210. The cleaned wastewater can be discharged from the drain outlet 250, which can facilitate the regular cleaning of the condensate tank 3.

[0029] Specifically, the mounting bracket 320 includes a connecting plate 321 and an inner cladding plate 322. A cleaning ring 330 is positioned around the outer edge of the connecting plate 321, and the inner cladding plate 322 connects the output rod end of the hydraulic cylinder 310 to the connecting plate 321. The cover 220 includes a fixing plate 221 and a folding plate 222. The fixing plate 221 is fixed to the top of the housing 210. One side of the folding plate 222 is hinged to the fixing plate 221, and the other side is fixed to the housing 210 via a fastener 260. A handle 280 is provided on the folding plate 222. The fastener 260 includes a support 261, a screw 262, and a knob cover 263. A slot is provided on one side of the folding plate 222. The support 261 is fixed to the outside of the housing 210, the bottom end of the screw 262 is hinged to the support 261, and the knob cover 263 is screwed to the top of the screw 262.

[0030] Alternatively, the folding plate 222 can be fixed by rotating the knob cover 263 in the fixing component 260 in conjunction with the screw 262. After flipping the folding plate 222, the inside of the box 210 can be cleaned manually.

[0031] It should be noted that the specific models and specifications of the water jet ejector 2 and hydraulic cylinder 310 need to be determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technology in this field, and therefore will not be described in detail. The power supply and principle of the water jet ejector 2 and hydraulic cylinder 310 are clear to those skilled in the art, and will not be described in detail here.

[0032] The working principle of this flash steam recovery device is as follows: During operation, the high-temperature steam discharged from the fixed discharge expansion vessel 1 is introduced into the water jet ejector 2 through the air inlet pipe 4, while the demineralized water is introduced into the water jet ejector 2 through the water inlet pipe 5. The water jet ejector 2 sprays the demineralized water and mixes it thoroughly with the high-temperature steam for heat exchange. The condensate produced after mixing and heat exchange is sent into the condensate tank 3 through the main mixing pipe 6 for later use.

[0033] The flash steam recovery device proposed in this application requires only a one-time investment, is easy to maintain and repair, has a simple and reliable principle, and has a significant energy-saving effect. Based on a waste steam temperature of 100℃ (enthalpy 2675KJ / Kg), the formula is: waste steam recovery amount × waste steam recovery enthalpy value ÷ standard coal calorific value = 1t × 2675.00KJ / Kg ÷ 29307kJ / kg = 0.091 tons. That is, recovering one ton of waste steam can save 0.091 tons of standard coal, increase the temperature of demineralized water, and has wide applicability.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flash vapor recovery device, characterized in that, include The system includes a fixed discharge expansion container (1), a water jet ejector (2), a condensate tank (3), an air inlet pipe (4), a water inlet pipe (5), and a mixing main pipe (6). The air inlet pipe (4) introduces the steam discharged from the fixed discharge expansion container (1) into the water jet ejector (2). The water inlet pipe (5) introduces demineralized water into the water jet ejector (2). The water jet ejector (2) mixes and exchanges heat with the introduced high-temperature steam and demineralized water, and then flows into the condensate tank (3) through the mixing main pipe (6) for storage and future use.

2. The flash vapor recovery device according to claim 1, characterized in that, The intake pipe (4) section is equipped with a first solenoid valve (7) and a first manual valve (8).

3. The flash vapor recovery device according to claim 1, characterized in that, The water inlet pipe (5) section is equipped with a second solenoid valve (9), a second manual valve (10), and a flow control valve (11).

4. A flash vapor recovery device according to claim 1, characterized in that, The main mixing pipeline (6) section is equipped with a shut-off valve (12).

5. A flash vapor recovery device according to claim 1, characterized in that, The drainage tank (3) includes a water tank assembly (20) and a cleaning assembly (30). The water tank assembly (20) includes a tank body (210) and a tank cover (220). The tank cover (220) covers the top of the tank body (210). A water outlet (230) is provided at the bottom of one side of the tank body (210). A water inlet (240) is provided at the top of the tank body (210) to communicate with the main mixing pipe (6).

6. A flash vapor recovery device according to claim 5, characterized in that, The cleaning assembly (30) includes a hydraulic cylinder (310), a fixing frame (320), and a cleaning ring (330). The fixing frame (320) is located inside the housing (210), and the cleaning ring (330) is arranged on the outer ring of the fixing frame (320). The hydraulic cylinder (310) is installed on the top of the housing cover (220), and the output rod end of the hydraulic cylinder (310) slides through the housing cover (220) and connects to the fixing frame (320).

7. A flash vapor recovery device according to claim 6, characterized in that, The fixing frame (320) includes a connecting plate (321) and an inner circumference plate (322). The cleaning ring (330) is disposed on the outer circumference of the connecting plate (321). The inner circumference plate (322) connects the output rod end of the hydraulic cylinder (310) to the connecting plate (321).

8. A flash vapor recovery device according to claim 5, characterized in that, The lid (220) includes a fixing plate (221) and a folding plate (222). The fixing plate (221) is fixed to the top of the box body (210). One side of the folding plate (222) is hinged to the fixing plate (221), and the other side of the folding plate (222) is fixed to the box body (210) by a fastener (260). A handle (280) is provided on the folding plate (222).

9. A flash vapor recovery device according to claim 8, characterized in that, The fastener (260) includes a support (261), a screw (262), and a knob cover (263). A slot is provided on one side of the folding plate (222). The support (261) is fixed to the outside of the box (210). The bottom end of the screw (262) is hinged to the support (261), and the knob cover (263) is screwed to the top of the screw (262).

10. A flash vapor recovery device according to claim 5, characterized in that, The bottom of the box (210) is provided with a base frame (270), and a drain outlet (250) is provided on one side of the box (210).

Images