Continuous dewatering device with flash steam recovery function

Abstract

The utility model discloses a continuous drainage device with a flash steam recovery function, and relates to the technical field of flash steam recovery. The device comprises a shell, a flash steam recovery assembly and a waste heat utilization assembly, a partition plate is fixedly connected between the two sides of an inner cavity of the shell, a drain valve is fixedly connected to the top of the partition plate, the flash steam recovery assembly comprises a temporary storage tank, and the left side of the temporary storage tank is communicated with a water outlet of the drain valve. According to the utility model, through the flash steam recovery assembly, condensate water is temporarily stored by using the temporary storage tank and conveyed to the flash tank, the condensate water is depressurized through the flash tank to separate flash steam, and then the flash steam is conveyed to the steam compressor through the steam compressor air supply pipe to be pressurized; the steam can enter a heating system again to be recycled, heat waste caused by direct discharge of the steam is reduced, meanwhile, formation of a local high-humidity environment is avoided, the risk that oxidation corrosion of a pipeline and a supporting structure is accelerated due to the humid environment is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of flash steam recovery technology, and in particular relates to a continuous condensate drain device with flash steam recovery. Background Technology

[0002] The continuous steam drain device is a key device in the steam heating system used to automatically remove condensate from pipes and equipment and prevent steam leakage. Its core functions include maintaining the dryness of the system, stabilizing steam pressure, preventing water hammer, and protecting equipment and pipes.

[0003] Current steam traps are typically installed directly on heat exchange equipment, allowing the condensate generated after the steam releases heat to be discharged directly from the steam trap. However, existing steam traps lack flash steam recovery functionality. After the condensate is depressurized, the steam discharged from the steam trap can generate a large amount of flash steam. Directly discharging this steam results in significant heat waste, increasing production costs. Furthermore, direct discharge of flash steam creates a localized high-humidity environment, which can accelerate oxidation reactions on the pipe surface, causing corrosion of the pipes and their supporting structures, thus hindering their use.

[0004] To address these issues, we provide a continuous condensate drain with flash vapor recovery. Utility Model Content

[0005] The purpose of this invention is to provide a continuous condensate drain device with flash steam recovery. By combining the flash steam recovery component and the waste heat utilization component, it solves the problem that existing continuous condensate drain devices do not have flash steam recovery function, and that direct discharge of flash steam will cause resource waste and create a local high humidity environment, which can easily lead to pipeline corrosion.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a continuous condensate drain device with flash steam recovery, comprising a shell, a flash steam recovery assembly, and a waste heat utilization assembly. A partition is fixedly connected between the two sides of the inner cavity of the shell, and a drain valve is fixedly connected to the top of the partition. The flash steam recovery assembly includes a storage tank, the left side of which is connected to the outlet of the drain valve. Flash tanks are fixedly connected to both sides of the bottom of the inner cavity of the shell, and the bottom of the storage tank is connected to the flash tanks. The two flash tanks are connected by a conduit. A steam compressor supply pipe is connected to the top left side of the flash tank. The waste heat utilization assembly includes two heat reflectors, the opposite sides of which are fixedly connected to the shell. A heat-conducting pipe is fixedly connected to the opposite sides of each heat reflector. The left end of the heat-conducting pipe penetrates the shell and is connected to a micro steam generator, while the right end of the heat-conducting pipe extends to the outside of the shell. A circulation mechanism is fixedly connected to the bottom right side of the shell.

[0008] The present invention is further configured such that the circulation mechanism includes a circulation shell, the left side of which is fixedly connected to the housing, and sealing plates are fixedly connected to the front and rear sides of the bottom of the inner cavity of the circulation shell. A circulation fan is connected to the front side of the sealing plate, and the front and rear sides of the circulation shell are connected to a heat reflector plate through connecting pipes. The sealing plate and the circulation fan can circulate the hot air inside the housing, so that the internal heat flow is continuously generated, thereby improving the heat absorption effect of the heat pipe. The connecting pipes enable communication between the circulation shell and the housing.

[0009] The present invention is further configured such that the inner cavity of the circulation shell is provided with heat dissipation fins, the left side of the heat dissipation fins extends through the inner cavity of the shell, a heat-conducting ring is fixedly connected to the surface of the flash tank, and the right side of the heat-conducting ring is fixedly connected to the heat dissipation fins. The heat dissipation fins can transfer the heat dissipated by the heat-conducting ring to the inside of the circulation shell to provide thermal compensation for the hot airflow circulating inside the circulation shell. The heat-conducting ring can transfer part of the heat dissipated by the flash tank to the heat dissipation fins.

[0010] The present invention is further configured such that a three-way water supply pipe is provided on the right side of the housing, and the front end and rear end of the left side of the three-way water supply pipe are connected to the heat conduction pipe. A control valve is installed on the surface of the three-way water supply pipe. The three-way water supply pipe is used to transport water for producing steam to the inside of the heat conduction pipe, and the control valve is used to control the opening and closing of the three-way water supply pipe.

[0011] The present invention is further configured such that the water inlet on the left side of the steam trap penetrates the housing and is connected to a sealing flange, and the left end of the steam compressor air delivery pipe penetrates the housing and is connected to an installation joint. The sealing flange enables the steam delivery pipe and the steam trap to be connected, and the installation joint enables the steam compressor air delivery pipe and the steam compressor to be connected.

[0012] The present invention is further configured such that a one-way valve is installed on the surface of the outlet on the right side of the drain valve, the heat-conducting tube is bent and installed inside the shell, the heat-conducting tube is made of a high thermal conductivity material, the one-way valve can prevent condensate backflow, and the heat-conducting tube made of high thermal conductivity material can quickly absorb heat, thereby raising the temperature of the water transported inside.

[0013] The present invention is further configured such that an exhaust port is connected to the top of the left side of the micro steam generator, and a control valve is installed on the surface of the heat-conducting pipe and on the outside of the shell. The exhaust port can discharge the produced live steam, mix it with flash steam, and improve the temperature and pressure of the recovered flash steam.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model utilizes a flash steam recovery component to temporarily store condensate in a storage tank and transport it to a flash tank. The flash tank depressurizes the condensate to separate the flash steam, which is then transported to the steam compressor for pressurization via a steam compressor delivery pipe. This allows the flash steam to re-enter the heating system for recycling, reducing heat waste caused by direct steam discharge. It also avoids the formation of localized high-humidity environments, reducing the risk of accelerated oxidation and corrosion of pipelines and support structures due to humid conditions, and extending the service life of the equipment.

[0016] 2. This utility model utilizes a waste heat utilization component to reflect and concentrate the heat released from the flash tank using a heat reflector plate. This, combined with the heat-conducting pipe absorbing heat, preheats the water delivered to the micro steam generator, reducing the energy consumption of the micro steam generator in steam preparation. Simultaneously, the circulation mechanism drives the hot airflow to circulate within the shell through a circulating fan, enhancing the heat exchange efficiency between the heat-conducting pipe and the hot air, further recovering waste heat during the flash evaporation process, improving energy utilization, reducing external heat source consumption, and lowering production costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A three-dimensional view of a continuous hydrophobic device with flash vapor recovery;

[0019] Figure 2 Rear view of a continuous condensate drain unit with flash vapor recovery;

[0020] Figure 3 A schematic diagram of a heat reflector and heat pipes in a continuous hydrophobic device with flash steam recovery;

[0021] Figure 4 This is a cross-sectional view of the shell of a continuous condensate drain unit with flash steam recovery.

[0022] Figure 5 This is a cross-sectional view of the circulating shell in a continuous condensate recovery unit with flash steam recovery.

[0023] In the attached diagram: 1. Shell; 2. Baffle plate; 3. Steam trap; 4. Flash steam recovery assembly; 41. Temporary storage tank; 42. Flash tank; 43. Steam compressor delivery pipe; 5. Waste heat recovery assembly; 51. Heat reflector; 52. Heat pipe; 53. Micro steam generator; 54. Circulation mechanism; 541. Circulation shell; 542. Sealing plate; 543. Circulation fan; 544. Connecting pipe; 545. Heat dissipation fins; 546. Heat conduction ring. Detailed Implementation

[0024] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a continuous condensate drain device with flash steam recovery, including a shell 1, a flash steam recovery component 4, and a waste heat utilization component 5. A partition 2 is fixedly connected between the two sides of the inner cavity of the shell 1, and a drain valve 3 is fixedly connected to the top of the partition 2. The flash steam recovery component 4 includes a temporary storage tank 41, the left side of which is connected to the outlet of the drain valve 3. Flash tanks 42 are fixedly connected to both sides of the bottom of the inner cavity of the shell 1, and the bottom of the temporary storage tank 41 is connected to the flash tanks 42. The two flash tanks 42... The two parts are connected by a conduit. The top left side of the flash tank 42 is connected to a steam compressor gas supply pipe 43. The waste heat utilization component 5 includes two heat reflectors 51. The opposite sides of the two heat reflectors 51 are fixedly connected to the shell 1. The opposite sides of the two heat reflectors 51 are fixedly connected to heat conduction pipes 52. The left end of the heat conduction pipe 52 passes through the shell 1 and is connected to a micro steam generator 53. The right end of the heat conduction pipe 52 passes through to the outside of the shell 1. The bottom right side of the shell 1 is fixedly connected to a circulation mechanism 54.

[0027] Specifically: the partition 2 separates the interior of the shell 1; the steam trap 3 drains condensate from the pipes; the storage tank 41 temporarily stores condensate; the flash tank 42 depressurizes the condensate into low-pressure steam; the steam compressor delivery pipe 43 delivers the low-pressure steam to the steam compressor, where it performs work and is then returned to the heating system for reuse, thus recovering and reusing the flash steam and reducing resource waste; and the heat reflector 51 reflects the heat generated during the condensate depressurization process. The heat is reflected to improve the heat absorption effect of the heat pipe 52. The circulation mechanism 54 can circulate the air inside the shell 1, so that the hot air continuously passes through the surface of the heat pipe 52 to further improve its heat absorption effect. The heat pipe 52 transports water and preheats the water in advance so that it does not need to be reheated after entering the micro steam generator 53, thus shortening the steam generation time. The micro steam generator 53 produces live steam. By mixing the live steam with the recovered flash steam, the recovered flash steam is heated and pressurized, making it easy for it to return to the heating system.

[0028] Example 2

[0029] Please see Figure 1-5Based on Embodiment 1, the circulation mechanism 54 includes a circulation shell 541. The left side of the circulation shell 541 is fixedly connected to the shell 1. Sealing plates 542 are fixedly connected to the front and rear sides of the bottom of the inner cavity of the circulation shell 541. A circulation fan 543 is connected to the front side of the sealing plate 542. The front and rear sides of the circulation shell 541 are connected to the heat reflector plate 51 through connecting pipes 544. Heat dissipation fins 545 are provided in the inner cavity of the circulation shell 541. The left side of the heat dissipation fins 545 extends into the inner cavity of the shell 1. A heat-conducting ring 546 is fixedly connected to the surface of the flash tank 42. The right side of the heat-conducting ring 546 is fixedly connected to the heat dissipation fins 545. Next, a three-way water supply pipe is provided on the right side of the housing 1. The front and rear ends of the left side of the three-way water supply pipe are connected to the heat conduction pipe 52. A control valve is installed on the surface of the three-way water supply pipe. The water inlet on the left side of the steam trap 3 passes through the housing 1 and is connected to a sealing flange. The left end of the steam compressor air supply pipe 43 passes through the housing 1 and is connected to an installation joint. A one-way valve is installed on the surface of the water outlet on the right side of the steam trap 3. The heat conduction pipe 52 is bent and set inside the housing 1. The heat conduction pipe 52 is made of a high thermal conductivity material. The top of the left side of the micro steam generator 53 is connected to an exhaust port. A control valve is installed on the surface of the heat conduction pipe 52 and located on the outside of the housing 1.

[0030] Specifically: the sealing plate 542 and the circulating fan 543 can circulate the hot air inside the shell 1, continuously generating circulating heat flow inside, improving the heat absorption effect of the heat pipe 52; the connecting pipe 544 can connect the circulating shell 541 and the shell 1; the heat dissipation fins 545 can transfer the heat conducted by the heat conducting ring 546 to the inside of the circulating shell 541, providing thermal compensation for the circulating hot airflow inside the circulating shell 541; the heat conducting ring 546 can transfer some of the heat dissipated by the flash tank 42 to the heat dissipation fins 545. The water supply pipe is used to transport the water used to produce live steam to the interior of the heat transfer pipe 52. The control valve is used to control the opening and closing of the three-way water supply pipe. The sealing flange enables the steam delivery pipe and the steam trap 3 to be connected. The mounting joint enables the steam compressor delivery pipe 43 to be connected to the steam compressor. The one-way valve prevents condensate backflow. The heat transfer pipe 52, made of high thermal conductivity material, can quickly absorb heat, raising the temperature of the water transported inside. The exhaust port can discharge the produced live steam, mixing it with flash steam to increase the temperature and pressure of the recovered flash steam.

[0031] The working principle of this utility model is as follows: The steam trap 3, through its differential pressure drainage design, prevents air leakage when discharging condensate. The condensate discharged by the steam trap 3 enters the temporary storage tank 41, which then transports it to the flash tank 42. The flash tank 42 depressurizes the condensate, converting it into flash steam. The flash steam enters the steam compressor through the steam compressor's gas delivery pipe 43, is pressurized, and then re-enters the heating system for recycling. The remaining condensate is discharged from the flash tank 42. During this process, the heat reflector 51 reflects the heat generated by the flash tank 42 to the heat pipe 52, which absorbs the heat and cools the interior. The water being transported is preheated, while the circulating fan 543 of the circulation mechanism 54 drives the hot air inside the housing 1 to flow through the heat dissipation fins 545 and the heat conduction ring 546 for heat exchange. The hot airflow circulates between the circulation shell 541 and the housing 1 through the connecting pipe 544, continuously providing heat to the heat conduction pipe 52. The preheated water enters the micro steam generator 53 to generate live steam. The live steam mixes with the recovered flash steam through the exhaust port to increase the temperature and pressure, reducing the heat waste caused by direct steam discharge. At the same time, it avoids the formation of a local high humidity environment, reduces the risk of accelerated oxidation and corrosion of pipelines and support structures due to the humid environment, and extends the service life of the equipment.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A continuous hydrophobic device with flash steam recovery, comprising a shell (1), a flash steam recovery assembly (4), and a waste heat utilization assembly (5), characterized in that: A partition (2) is fixedly connected between the two sides of the inner cavity of the shell (1), and a drain valve (3) is fixedly connected to the top of the partition (2); The flash steam recovery assembly (4) includes a temporary storage tank (41), the left side of which is connected to the outlet of the steam trap (3), and flash tanks (42) are fixedly connected to both sides of the bottom of the inner cavity of the shell (1). The bottom of the temporary storage tank (41) is connected to the flash tank (42), and the two flash tanks (42) are connected by a conduit. The top of the left side of the flash tank (42) is connected to a steam compressor gas delivery pipe (43). The waste heat utilization component (5) includes two heat reflectors (51). The opposite sides of the two heat reflectors (51) are fixedly connected to the housing (1). The opposite sides of the two heat reflectors (51) are fixedly connected to heat conduction pipes (52). The left end of the heat conduction pipe (52) passes through the housing (1) and is connected to a micro steam generator (53). The right end of the heat conduction pipe (52) passes through to the outside of the housing (1). A circulation mechanism (54) is fixedly connected to the bottom right side of the housing (1).

2. The continuous hydrophobation apparatus with flash vapor recovery according to claim 1, characterized in that: The circulation mechanism (54) includes a circulation shell (541), the left side of which is fixedly connected to the shell (1). A sealing plate (542) is fixedly connected to the front and rear sides of the bottom of the inner cavity of the circulation shell (541). A circulation fan (543) is connected to the front side of the sealing plate (542). The front and rear sides of the circulation shell (541) are connected to the heat reflector plate (51) through a connecting pipe (544).

3. The continuous hydrophobation apparatus with flash vapor recovery according to claim 2, characterized in that: The inner cavity of the circulation shell (541) is provided with heat dissipation fins (545), the left side of the heat dissipation fins (545) extends through the inner cavity of the shell (1), and a heat-conducting ring (546) is fixedly connected to the surface of the flash tank (42), the right side of the heat-conducting ring (546) is fixedly connected to the heat dissipation fins (545).

4. The continuous hydrophobic device with flash vapor recovery of claim 1, wherein: A three-way water supply pipe is provided on the right side of the housing (1). The front end and rear end of the three-way water supply pipe are connected to the heat conduction pipe (52) on the left side. A control valve is installed on the surface of the three-way water supply pipe.

5. The continuous hydrophobic device with flash vapor recovery of claim 1, wherein: The water inlet on the left side of the steam trap (3) penetrates the housing (1) and is connected to a sealing flange. The left end of the steam compressor air delivery pipe (43) penetrates the housing (1) and is connected to an installation joint.

6. The continuous hydrophobation apparatus with flash vapor recovery according to claim 1, characterized in that: A one-way valve is installed on the surface of the outlet on the right side of the drain valve (3), and the heat pipe (52) is bent and set inside the shell (1). The heat pipe (52) is made of a high thermal conductivity material.

7. The continuous hydrophobic device with flash vapor recovery of claim 1, wherein: The top left side of the micro steam generator (53) is connected to an exhaust port, and a control valve is installed on the surface of the heat pipe (52) and on the outside of the housing (1).

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