Evaporator of steam waste heat type ORC power generation system

Abstract

The utility model relates to the technical field of evaporators, and discloses an evaporator of a steam waste heat type ORC (organic Rankine cycle) power generation system, which comprises a shell, a drain outlet is fixedly mounted below the shell, and a cleaning device capable of cleaning dirt left by sewage is arranged in a cavity of the drain outlet. A collecting device capable of collecting dirt and facilitating continuous operation of the cleaning device is arranged below the drain outlet, and the collecting device comprises sponge; a collecting pipe is fixedly installed on the bottom wall face of the sewage draining exit, the cleaning device further comprises a driving motor, a limiting rod is fixedly installed on the bottom wall face of the driving motor, cleaned dirt is collected through the collecting device, manual cleaning by workers is not needed, and the cleaning efficiency is improved. And a large amount of working time can be saved for workers, so that the working efficiency is improved, and the psychological burden of cleaning dirt by the workers can be relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of evaporators, and specifically relates to an evaporator of a steam waste heat type ORC power generation system. Background Art

[0002] Evaporation is the physical process of converting liquid into gas. Generally speaking, an evaporator is an object that converts liquid substances into gas. There are a large number of evaporators in the industry, and the evaporator used in refrigeration systems is one of them. The evaporator is a very important component among the four major refrigeration components. The low-temperature condensed liquid passes through the evaporator to exchange heat with the outside air, vaporize and absorb heat to achieve the refrigeration effect. The evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber. The heating chamber provides the liquid with the heat required for evaporation, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases.

[0003] Organic Rankine Cycle (ORC) is a Rankine cycle with low boiling point organic matter as the working fluid. It is mainly composed of waste heat boiler (or heat exchanger), turbine, condenser and working fluid pump. Its working principle is as follows: Figure 1 As shown. The organic working fluid absorbs heat from the waste heat flow in the heat exchanger to generate steam with a certain pressure and temperature. The steam enters the turbine machinery to expand and do work, thereby driving the generator or dragging other power machinery. The steam discharged from the turbine releases heat to the cooling water in the condenser, condenses into liquid, and finally returns to the heat exchanger with the help of the working fluid pump, and the cycle continues. However, in the evaporator of the ORC power generation system in the prior art, the inventors have found the following usage problems:

[0004] The evaporator of the prior art ORC power generation system is usually used in the industrial field, and a large amount of sewage will be generated during the application in the industrial field. The prior art discloses an evaporator suitable for the steam waste heat type ORC power generation system (201710612066.X), including a cylindrical shell; a first tube sheet is arranged radially on one end face of the shell, and a first head is installed on the outer side of the first tube sheet; a first tube box is formed between the first tube sheet and the first head; a steam inlet is arranged at the first head near the top of the first tube box; a second tube sheet is arranged radially on the other end face of the shell, and a second head is installed on the outer side of the second tube sheet; a second tube box is formed between the second tube sheet and the second head; a condensate outlet is arranged at the second head near the bottom of the second tube box; and a plurality of axial heat exchange tubes are arranged inside the shell. The prior art ORC power generation system will produce sewage during operation. The prior art discharges sewage through a sewage outlet, but for a long time, the dirt left by the sewage at the sewage outlet may cause the sewage outlet to be blocked, thereby affecting the operation of the ORC power generation system, which has certain disadvantages in use.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] An evaporator of a steam waste heat type 0RC power generation system comprises a shell, a sewage outlet is fixedly installed at the bottom of the shell, a cleaning device for cleaning dirt left by sewage is arranged in the cavity of the sewage outlet, a collecting device for collecting dirt to facilitate the continuous operation of the cleaning device is arranged below the sewage outlet, and the collecting device comprises a sponge and a collecting pipe; a collecting pipe is fixedly installed on the bottom wall of the sewage outlet, a collecting hole is opened on the top wall of the collecting pipe, the sponge is fixedly installed in the cavity of the collecting hole, and the outer side wall of the collecting pipe corresponds to the position and size of the inner side wall of the sewage outlet; the cleaning device also comprises a driving motor, a limiting rod is fixedly installed on the bottom wall of the driving motor, the left and right ends of the limiting rod are fixedly connected to the bottom wall of the collecting pipe, and a driving plate is fixedly installed on the output end of the driving motor.

[0008] As a preferred embodiment of the utility model, the cleaning device also includes a driving plate, a bolt, a threaded ring, a rotating rod and a scraper. A bolt is rotatably installed on the top wall of the driving plate, and a fixing rod is fixedly installed on the top wall of the bolt. The left and right ends of the fixing rod are fixedly connected to the inner side walls of the cavity of the sewage outlet. A threaded ring is provided on the side wall of the bolt, and the inner wall surface of the cavity of the threaded ring is threadedly connected to the side wall of the bolt. Two rotating rods are fixedly installed on the side wall of the threaded ring, and a scraper is fixed on each end of the two rotating rods away from each other.

[0009] As a preferred embodiment of the utility model, the cleaning device also includes a fixed block, and the ends of the two rotating rods that are away from each other are fixedly installed with a fixed block, and the two scrapers are respectively fixedly installed on the side wall surfaces diagonally opposite to the two fixed blocks, and the side wall surfaces where the two scrapers are close to each other are in an arc-shaped state.

[0010] As a preferred embodiment of the utility model, a plurality of telescopic rods are provided at both ends of the top wall of the driving plate away from the driving plate, and the diameters of the plurality of telescopic rods become thinner from bottom to top. The upper telescopic rod is movably installed in the cavity of the corresponding lower telescopic rod, and compression springs are connected between adjacent telescopic rods.

[0011] As a preferred embodiment of the present invention, the lowermost telescopic rod is fixedly connected to the bottom wall of the driving plate, and the uppermost telescopic rod is fixedly connected to the bottom wall of the rotating rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In summary, by setting up a cleaning device and a collecting device, the dirt left by the sewage can be cleaned by the cleaning device, and the dirt after cleaning can be collected by the collecting device. There is no need for staff to perform manual cleaning, which can not only save a lot of working time for the staff, thereby improving work efficiency, but also alleviate the psychological burden of cleaning dirt for the staff.

[0014] 2. In summary, by setting the collection hole, sponge and collection tube, the dirt on the scraper can be cleaned with the sponge, and the sponge can be limited by the collection hole, so there is no need for staff to clean it. When the sponge cannot clean the scraper, only the sponge needs to be replaced. The work cost is low and it saves time and effort for the staff.

[0015] 3. In summary, by setting bolts, rotating rods, fixed rods, fixed blocks, scrapers, drive plates, drive motors, limit rods, telescopic rods and threaded rings, the scrapers can be driven to rotate and move by rotating the output end of the drive motor, so as to clean the inner side walls of the sewage outlet, and the scrapers can be moved up and down by extending and retracting the telescopic rods.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the cleaning device and the collecting device of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the cleaning device of the utility model;

[0021] Figure 4 This is a three-dimensional diagram of the collection device of the utility model;

[0022] Figure 5 This is a bottom-up stereoscopic view of the cleaning device of the utility model after it is fixed on the collecting device.

[0023] In the figure: 10, shell; 11, sewage outlet; 12, bolt; 13, collecting pipe; 14, rotating rod; 15, fixing block; 16, scraper; 17, driving plate; 18, driving motor; 19, limiting rod; 21, telescopic rod; 22, collecting hole; 23, sponge; 24, threaded ring; 25, fixing rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0025] like Figure 1 As shown, an evaporator of a steam waste heat type ORC power generation system includes a shell 10, a sewage outlet 11 is fixedly installed below the shell 10, a cleaning device for cleaning dirt left by sewage is arranged in the cavity of the sewage outlet 11, and a collecting device for collecting dirt to facilitate the continuous operation of the cleaning device is arranged below the sewage outlet 11, and the collecting device includes a sponge 23.

[0026] It is worth noting that the ORC power generation system is arranged in the shell 10, and the sewage outlet 11 is connected to the ORC power generation system. During the operation, sewage will flow out from the sewage outlet 11. The ORC power generation system, the shell 10 and the sewage outlet 11 have been disclosed in an evaporator suitable for a steam waste heat type ORC power generation system (201710612066.X), which will not be repeated here.

[0027] During specific use, when sewage passes through the sewage outlet 11, dirt will be left in the cavity of the sewage outlet 11. The dirt left by the sewage can be cleaned, and the collecting device can collect the dirt. There is no need for manual cleaning by the staff, which can provide the staff with a lot of working time.

[0028] To sum up, by setting up a cleaning device and a collecting device, the dirt left by the sewage can be cleaned by the cleaning device, and the dirt after cleaning can be collected by the collecting device. There is no need for staff to perform manual cleaning, which can not only save a lot of working time for the staff, thereby improving work efficiency, but also alleviate the psychological burden of the staff in cleaning dirt.

[0029] like Figure 4 As shown, a collecting pipe 13 is fixedly installed on the bottom wall of the sewage outlet 11, a collecting hole 22 is opened on the top wall of the collecting pipe 13, a sponge 23 is fixedly installed in the cavity of the collecting hole 22, and the outer side wall of the collecting pipe corresponds to the position of the inner side wall of the cavity of the sewage outlet 11.

[0030] During specific use, the cleaning device includes a scraper 6. When the scraper 16 is inserted into the cavity of the sponge 23, the dirt on the scraper 16 can be cleaned. The specific operation of the scraper 16 will be discussed below. Due to the material of the sponge 23, the sewage will not affect the cleaning of the dirt on the scraper 16 after passing through the sponge 23. The collecting hole 22 can limit the sponge 23.

[0031] To sum up, by setting the collecting hole 22, the sponge 23 and the collecting tube 13, the dirt on the scraper 16 can be cleaned by the sponge 23, and the sponge 23 is limited by the collecting hole 22, and there is no need for staff to clean it. When the sponge 23 cannot clean the scraper 16, only the sponge 23 needs to be replaced. The working cost is low, and it also saves time and effort for the staff.

[0032] like Figure 2 , Figure 3 and Figure 5 As shown, the cleaning device also includes a driving motor 18, a limiting rod 19 and a driving plate 17. A limiting rod 19 is fixedly installed on the bottom wall of the driving motor 18. The left and right ends of the limiting rod 19 are fixedly connected to the bottom wall of the collecting tube 13. A driving plate 17 is fixedly installed on the output end of the driving motor 18.

[0033] The cleaning device also includes a bolt 12, a threaded ring 24 and a rotating rod 14. A bolt 12 is rotatably installed on the top wall of the driving plate 17, and a fixed rod 25 is fixedly installed on the top wall of the bolt 12. The left and right ends of the fixed rod 25 are fixedly connected to the inner side walls of the cavity of the sewage outlet 11. A threaded ring 24 is provided on the side wall of the bolt 12. The inner wall surface of the threaded ring 24 is threadedly connected to the side wall of the bolt 12. Two rotating rods 14 are fixedly installed on the side wall of the threaded ring 24, and the two rotating rods 14 are horizontally arranged opposite to each other.

[0034] The cleaning device also includes a fixed block 15, and one end of the two rotating rods 14 away from each other is fixedly installed with a fixed block 15, and two scrapers 16 are respectively fixedly installed on one side wall of the two fixed blocks 15 at opposite corners. The cleaning device includes two scrapers 16, and the side wall of the two scrapers 16 close to each other is in an arc-shaped state.

[0035] A plurality of telescopic rods 21 are fixedly mounted on both ends of the top wall of the driving plate 17 away from the driving plate 17, and the diameters of the plurality of telescopic rods 21 are gradually reduced from bottom to top, and the upper telescopic rods 21 are movably mounted in the cavities of the corresponding lower telescopic rods 21, and compression springs are connected between adjacent telescopic rods 21, and the lowermost telescopic rod 21 is fixedly connected to the bottom wall of the driving plate 17, and the uppermost telescopic rod 21 is fixedly connected to the bottom wall of the rotating rod 14. The driving motor 18 is connected to the power supply and the switch by electrical signals.

[0036] During specific use, the limit rod 19 can limit the driving motor 18. When the output end of the driving motor 18 rotates, the driving plate 17 can be driven to rotate. The rotation of the driving plate 17 can drive the two sets of telescopic rods 21 to rotate around the motor shaft together. The rotation of the two sets of telescopic rods 21 can drive the threaded ring 24 to rotate. The rotation of the threaded ring 24 can drive the rotating rod 14 and the fixed block 15 to rotate around the motor shaft together. The rotation of the fixed block 15 can drive the scraper 16 to rotate. Due to the rotation of the threaded ring 24, it can be moved up and down through the threaded connection with the bolt 12, so as to cooperate with the scraper 16 to comprehensively clean the inner side wall of the sewage outlet 11. When the scraper 16 drops to a certain position, it can be inserted into the cavity of the sponge 23, and the scraper 16 is cleaned by the sponge 23. In the process of the threaded ring 24 moving up and down, multiple telescopic rods 21 can be extended and retracted to achieve the operation of moving up and down.

[0037] In summary, by arranging the bolt 12, the rotating rod 14, the fixed rod 25, the fixed block 15, the scraper 16, the drive plate 17, the drive motor 18, the limit rod 19, the telescopic rod 21 and the threaded ring 24, the scraper 16 can be driven to rotate and move by the rotation of the output end of the drive motor 18, so as to clean the inner side wall of the sewage outlet 11, and the scraper 16 can be coordinated with the up and down movement of the telescopic rod 21.

[0038] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An evaporator of a steam waste heat type ORC power generation system, comprising a shell (10), a sewage outlet (11) fixedly installed below the shell (10), characterized in that: A cleaning device capable of cleaning dirt left by sewage is arranged in the cavity of the sewage outlet (11); a collecting device capable of collecting dirt to facilitate the continuous operation of the cleaning device is arranged below the sewage outlet (11); the collecting device comprises a sponge (23) and a collecting pipe (13); a collecting pipe (13) is fixedly mounted on the bottom wall of the sewage outlet (11); a collecting hole (22) is opened on the top wall of the collecting pipe (13); the sponge (23) is fixedly mounted in the cavity of the collecting hole (22); the outer side wall of the collecting pipe (13) corresponds to the position and size of the inner side wall of the cavity of the sewage outlet (11); the cleaning device comprises a driving motor (18), a limiting rod (19) and a driving plate (17); a limiting rod (19) is fixedly mounted on the bottom wall of the driving motor (18); the left and right ends of the limiting rod (19) are fixedly connected to the bottom wall of the collecting pipe (13); and a driving plate (17) is fixedly mounted on the output end of the driving motor (18).

2. The evaporator of the steam waste heat type ORC power generation system according to claim 1, characterized in that: The cleaning device further comprises a bolt (12), a threaded ring (24), a rotating rod (14) and a scraper (16); a bolt (12) is rotatably mounted on the top wall of the driving plate (17); a fixing rod (25) is fixedly mounted on the top wall of the bolt (12); the left and right ends of the fixing rod (25) are fixedly connected to the inner side wall of the cavity of the sewage outlet (11); a threaded ring (24) is arranged on the side wall of the bolt (12); the inner wall of the cavity of the threaded ring (24) is threadedly connected to the side wall of the bolt (12); two rotating rods (14) are fixedly mounted on the side wall of the threaded ring (24); and one end of the two rotating rods (14) which are away from each other is fixed with the scraper (16).

3. The evaporator of the steam waste heat type ORC power generation system according to claim 2 is characterized in that: The cleaning device further comprises a fixed block (15), one end of each of the two rotating rods (14) being away from each other being fixedly mounted with a fixed block (15), and two scrapers (16) being respectively fixedly mounted on a side wall surface at a diagonal angle of the two fixed blocks (15), and a side wall surface of the two scrapers (16) being close to each other is in an arc-shaped state.

4. The evaporator of the steam waste heat type ORC power generation system according to claim 3 is characterized in that: A plurality of telescopic rods (21) are provided at both ends of the top wall of the driving plate (17) away from the driving plate (17), and the diameters of the plurality of telescopic rods (21) are gradually reduced from bottom to top, and the upper telescopic rods (21) are movably mounted in the cavities of the corresponding lower telescopic rods (21), and compression springs are connected between adjacent telescopic rods (21).

5. The evaporator of the steam waste heat type ORC power generation system according to claim 4, characterized in that: The lowermost telescopic rod (21) is fixedly connected to the bottom wall of the driving plate (17), and the uppermost telescopic rod (21) is fixedly connected to the bottom wall of the rotating rod (14).

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