ORC power generation device capable of automatically adjusting liquid level

Abstract

The utility model belongs to the field of power generation devices, and particularly relates to a liquid level automatic adjusting ORC power generation device which comprises an evaporator, the top of the evaporator is fixedly connected with a flange plate, the top of the flange plate is provided with a connecting plate through a bolt, the top of the connecting plate is fixedly connected with a liquid level meter, and the lower end of the liquid level meter is provided with an antenna. The antenna is in sliding connection with the connecting disc and the flange disc, the antenna is in sliding connection with the evaporator, and a fixing box is fixedly connected to the position, located on the back of the liquid level meter, of the top of the evaporator. The liquid level meter and the antenna are designed, the liquid level in the evaporator can be monitored, in the monitoring process, external air can be sucked through the work of the air pump, then the air is filtered through the filtering frame, finally, the air can be sprayed out through the nozzle, the antenna can be blown, water vapor and the like can be blown off, and the evaporator is prevented from being damaged. Condensate residues of steam and salt mist on the antenna are prevented from influencing the measurement precision.

Description

Technical Field

[0001] The utility model belongs to the field of power generation devices, and in particular relates to an ORC power generation device with automatic liquid level regulation. Background Art

[0002] Organic Rankine cycle (ORC) power generation technology is increasingly used in waste heat utilization industries such as industrial waste heat, solar energy, and geothermal energy, with single-unit capacity ranging from tens of kilowatts to several megawatts. At present, in the field of industrial waste heat utilization, power generation technology is a more reasonable utilization solution. Due to its own high condensing pressure, large sensible / latent heat ratio, and the use of dry working fluids, compared with the traditional steam Rankine cycle, it has the characteristics of simple system and high heat utilization rate in the field of low-temperature power generation.

[0003] The utility model patent with the patent authorization announcement number CN212296520U discloses an ORC power generation device with automatic liquid level adjustment, including an evaporator, an expander, a condenser and a working fluid pump connected in sequence through a main pipeline; the evaporator is connected to an external heat source, and an evaporator liquid level gauge is installed on the evaporator; a main regulating valve is arranged between the evaporator and the working fluid pump; a bypass pipeline is arranged between the output end of the expander and the output end of the working fluid pump, and a bypass regulating valve is arranged on the bypass pipeline; and a power unit is connected to the expander. The ORC power generation device with automatic liquid level adjustment described in the utility model, during normal startup, operation, and shutdown, when the fluctuation range of the heat source parameters is small, the liquid level deviation signal will be promptly fed back to the main regulating valve and the bypass regulating valve at the outlet of the working fluid pump, and the main regulating valve and the bypass regulating valve will automatically operate to make the liquid level value return to the set value, thereby ensuring the stability of the internal circulation of the ORC power generation device.

[0004] In the above-mentioned prior art, during the use of the power generation device, the evaporator liquid level is measured and monitored by the evaporator liquid level meter. However, during the operation of the evaporator, a large amount of steam, salt mist condensate, etc. will be generated inside the evaporator, which will adhere to the outside of the antenna, seriously interfering with the measurement accuracy of the liquid level meter and affecting the normal operation of the evaporator. Therefore, improvements are needed. Utility Model Content

[0005] The utility model aims to provide an ORC power generation device with automatic liquid level regulation, which solves the problem that the condensate of steam, salt mist and the like adheres to the outside of the antenna and affects the operation of the evaporator in the existing ORC power generation device with automatic liquid level regulation.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an ORC power generation device with automatic liquid level adjustment, including an evaporator, a flange is fixedly connected to the top of the evaporator, a connecting plate is installed on the top of the flange by bolts, a liquid level gauge is fixedly connected to the top of the connecting plate, an antenna is provided at the lower end of the liquid level gauge, the antenna is slidably connected to the connecting plate and the flange respectively, the antenna is slidably connected to the evaporator, a fixing box is fixedly connected to the top of the evaporator and located at the back of the liquid level gauge, a motor is fixedly connected to the top of the inner wall of the evaporator, an injection mechanism is provided on the fixing box, and a cleaning mechanism is provided on the antenna.

[0007] The principle of the utility model is that when in use, the liquid level inside the evaporator can be monitored through the action of the liquid level meter and the antenna. During the monitoring process, the air pump can be used to draw in the external air through the air inlet pipe, and the air enters the fixed box and is then filtered through the filter frame, so that dust and impurities in the air can be filtered, and the gas can be ejected from the nozzle through the exhaust pipe, and the antenna can be blown, and water vapor and the like can be blown off, so as to avoid the condensate residue of steam and salt mist on the antenna affecting the measurement accuracy. While blowing, the output end of the motor drives the screw to rotate, and the screw is connected to the connecting ring through the thread, so that the connecting ring makes a threaded movement, and the connecting ring slides along the guide rod, and at the same time, the connecting ring drives the ball to slide along the guide groove on the guide rod, so that the bristles can move along the antenna, and the attachments on the antenna surface can be cleaned, further improving the liquid level monitoring effect.

[0008] The beneficial effect of the utility model is that the liquid level inside the evaporator can be monitored by designing the function of the liquid level meter and the antenna. During the monitoring process, the external air can be sucked in through the operation of the air pump, and the air is then filtered through the filter frame, and finally the gas can be ejected through the nozzle, and the antenna can be blown to blow off the water vapor, etc., to avoid the condensate residue of steam and salt mist on the antenna affecting the measurement accuracy.

[0009] By designing the function of the motor, the output end of the motor can drive the screw to rotate. Through the threaded connection between the screw and the connecting ring, the connecting ring makes threaded movement, and the connecting ring slides along the guide rod. At the same time, the connecting ring drives the ball to slide along the guide groove on the guide rod, so that the bristles can move along the antenna, clean the attachments on the antenna surface, and further improve the liquid level monitoring effect.

[0010] Furthermore, a sealed door is hingedly connected to the back of the fixed box, and a handle is arranged on the sealed door. The sealed door is designed to facilitate the operation inside the fixed box.

[0011] Furthermore, the jet mechanism includes an air pump, an air pump is fixedly connected to the top of the inner wall of the fixed box, a filter rack is fixedly connected to the inner wall of the fixed box, an exhaust pipe is fixedly connected to the front end of the fixed box, the exhaust pipe is slidably connected to the connection plate, an annular air duct is opened inside the connection plate, the annular air duct is connected to the exhaust pipe, a nozzle is fixedly connected inside the connection plate, and the nozzle is connected to the annular air duct. By designing the jet mechanism, air can be blown to the antenna.

[0012] Furthermore, an air intake pipe is provided on the top of the air pump, and the air intake pipe penetrates the fixed box and is fixedly connected to the fixed box. By designing the air intake pipe, external air can be sucked.

[0013] Furthermore, the number of the nozzles is multiple, and the multiple nozzles are evenly distributed in a ring shape inside the connecting disk. The nozzles are designed so that the gas can be blown out through the nozzles.

[0014] Furthermore, the cleaning mechanism includes a screw, the lower end of the motor output end is fixedly connected with a screw, the outer side of the screw is connected with a connecting ring through a thread, the connecting ring is arranged on the outer side of the antenna, the inner side of the connecting ring is provided with bristles, the bristles are in contact with the outer surface of the antenna, the inner side of the connecting ring is movably sleeved with a ball, the outer side of the ball is movably sleeved with a guide rod, the guide rod is fixedly connected to the top of the inner wall of the evaporator, and the guide rod is slidably connected to the connecting ring. By designing the cleaning mechanism, the outer surface of the antenna can be cleaned.

[0015] Furthermore, a guide groove is provided inside the guide rod, and a ball is movably connected inside the guide groove. The guide groove is designed so that the ball can slide along the guide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the ORC power generation device with automatic liquid level adjustment according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the ORC power generation device with automatic liquid level adjustment according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 The ORC power generation device with automatic liquid level adjustment according to the embodiment of the present invention Figure 2 A front cross-sectional view of

[0019] Figure 4 The ORC power generation device with automatic liquid level adjustment according to the embodiment of the present invention Figure 3 Enlarged view of point A. DETAILED DESCRIPTION

[0020] The following is further described in detail through specific implementation methods:

[0021] The reference numerals in the drawings of the specification include:

[0022] Evaporator 1, flange 2, connecting plate 3, liquid level meter 4, antenna 5, fixing box 6, motor 7, jet mechanism 8, cleaning mechanism 9, air pump 81, air inlet pipe 82, filter frame 83, exhaust pipe 84, annular air duct 85, nozzle 86, screw 91, connecting ring 92, bristles 93, ball bearings 94, guide rods 95, and guide grooves 96.

[0023] like Figure 1 , Figure 2 As shown, this embodiment provides an ORC power generation device with automatic liquid level adjustment, including an evaporator 1, a flange 2 is fixedly connected to the top of the evaporator 1, a connecting plate 3 is installed on the top of the flange 2 by bolts, a liquid level meter 4 is fixedly connected to the top of the connecting plate 3, an antenna 5 is provided at the lower end of the liquid level meter 4, the antenna 5 is slidably connected to the connecting plate 3 and the flange 2 respectively, the antenna 5 is slidably connected to the evaporator 1, a fixed box 6 is fixedly connected to the top of the evaporator 1 and located on the back of the liquid level meter 4, a sealed door is hinged on the back of the fixed box 6, a handle is provided on the sealed door, and the sealing door is designed to facilitate the operation inside the fixed box 6, a motor 7 is fixedly connected to the top of the inner wall of the evaporator 1, an injection mechanism 8 is provided on the fixed box 6, and a cleaning mechanism 9 is provided on the antenna 5.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the jet mechanism 8 includes an air pump 81, and an air inlet pipe 82 is arranged on the top of the air pump 81. The air inlet pipe 82 passes through the fixed box 6 and is fixedly connected to the fixed box 6. By designing the air inlet pipe 82, external air can be sucked. The top of the inner wall of the fixed box 6 is fixedly connected with the air pump 81, and the inner wall of the fixed box 6 is fixedly connected with a filter frame 83. The front end of the fixed box 6 is fixedly connected with an exhaust pipe 84, and the exhaust pipe 84 is slidably connected to the connecting disk 3. An annular air duct 85 is opened inside the connecting disk 3, and the annular air duct 85 is connected to the exhaust pipe 84. A nozzle 86 is fixedly connected inside the connecting disk 3. There are multiple nozzles 86, and the multiple nozzles 86 are annular and evenly distributed inside the connecting disk 3. By designing the nozzle 86, gas can be blown out through the nozzle 86, and the nozzle 86 is connected to the annular air duct 85. By designing the jet mechanism 8, air can be blown to the antenna 5.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the cleaning mechanism 9 includes a screw 91, the lower end of the output end of the motor 7 is fixedly connected with the screw 91, the outer side of the screw 91 is connected with a connecting ring 92 through a thread, the connecting ring 92 is arranged on the outer side of the antenna 5, the inner side of the connecting ring 92 is provided with bristles 93, the bristles 93 are in contact with the outer surface of the antenna 5, the inner part of the connecting ring 92 is movably sleeved with a ball 94, the outer side of the ball 94 is movably sleeved with a guide rod 95, the inner part of the guide rod 95 is provided with a guide groove 96, the inner part of the guide groove 96 is movably connected with the ball 94, by designing the guide groove 96, the ball 94 can slide along the guide rod 95, the guide rod 95 is fixedly connected to the top of the inner wall of the evaporator 1, the guide rod 95 is slidably connected to the connecting ring 92, and the outer surface of the antenna 5 can be cleaned by designing the cleaning mechanism 9.

[0026] The specific implementation process of the utility model is as follows: when in use, the liquid level inside the evaporator 1 can be monitored through the action of the liquid level meter 4 and the antenna 5. During the monitoring process, the air pump 81 can be operated to draw in the external air through the air inlet pipe 82, and the air enters the fixed box 6 and then is filtered through the filter frame 83, so that dust and impurities in the air can be filtered, and the gas can be ejected through the exhaust pipe 84 and then ejected by the nozzle 86, so that the antenna 5 can be blown, and water vapor can be blown off, so as to avoid the condensate residue of steam and salt mist on the antenna 5 affecting the measurement accuracy. While blowing, the output end of the motor 7 drives the screw 91 to rotate, and the screw 91 is connected to the connecting ring 92 through the thread, so that the connecting ring 92 makes a threaded movement, and the connecting ring 92 will slide along the guide rod 95, and at the same time, the connecting ring 92 drives the ball 94 to slide along the guide groove 96 on the guide rod 95, so that the bristles 93 can move along the antenna 5, and the attachments on the surface of the antenna 5 can be cleaned, further improving the liquid level monitoring effect.

[0027] The beneficial effect of the utility model is that: by designing the functions of the liquid level meter 4 and the antenna 5, the liquid level inside the evaporator 1 can be monitored. During the monitoring process, the air pump 81 can be used to draw in the external air, and the air is then filtered through the filter frame 83, and finally the gas can be ejected through the nozzle 86, and the antenna 5 can be blown to blow off the water vapor, etc., to avoid the condensate residue of steam and salt mist on the antenna 5 affecting the measurement accuracy.

[0028] By designing the function of the motor 7, the output end of the motor 7 can drive the screw 91 to rotate. Through the threaded connection between the screw 91 and the connecting ring 92, the connecting ring 92 makes a threaded movement, and the connecting ring 92 slides along the guide rod 95. At the same time, the connecting ring 92 drives the ball 94 to slide along the guide groove 96 on the guide rod 95, so that the bristles 93 can move along the antenna 5, and the attachments on the surface of the antenna 5 can be cleaned, thereby further improving the liquid level monitoring effect.

[0029] It should be noted in advance that, in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An ORC power generation device with automatic liquid level adjustment, comprising an evaporator, characterized in that: A flange is fixedly connected to the top of the evaporator, a connecting plate is installed on the top of the flange by bolts, a liquid level gauge is fixedly connected to the top of the connecting plate, an antenna is provided at the lower end of the liquid level gauge, the antenna is slidably connected to the connecting plate and the flange respectively, the antenna is slidably connected to the evaporator, a fixing box is fixedly connected to the top of the evaporator and located at the back of the liquid level gauge, a motor is fixedly connected to the top of the inner wall of the evaporator, an injection mechanism is provided on the fixing box, and a cleaning mechanism is provided on the antenna.

2. The ORC power generation device with automatic liquid level adjustment according to claim 1 is characterized in that: A sealed door is hinged on the back of the fixed box, and a handle is arranged on the sealed door.

3. The ORC power generation device with automatic liquid level regulation according to claim 1 is characterized in that: The jet mechanism includes an air pump, an air pump is fixedly connected to the top of the inner wall of the fixed box, a filter frame is fixedly connected to the inner wall of the fixed box, an exhaust pipe is fixedly connected to the front end of the fixed box, the exhaust pipe is slidably connected to the connecting disk, an annular air duct is opened inside the connecting disk, the annular air duct is connected to the exhaust pipe, and a nozzle is fixedly connected to the inside of the connecting disk, and the nozzle is connected to the annular air duct.

4. The ORC power generation device with automatic liquid level adjustment according to claim 3 is characterized in that: An air intake pipe is arranged on the top of the air pump, and the air intake pipe passes through the fixing box and is fixedly connected to the fixing box.

5. The ORC power generation device with automatic liquid level regulation according to claim 3 is characterized in that: There are multiple nozzles, and the multiple nozzles are evenly distributed in a ring shape inside the connecting disk.

6. The ORC power generation device with automatic liquid level regulation according to claim 1, characterized in that: The cleaning mechanism includes a screw, the lower end of the output end of the motor is fixedly connected to the screw, the outer side of the screw is connected to a connecting ring through a thread, the connecting ring is arranged on the outer side of the antenna, the inner side of the connecting ring is provided with bristles, the bristles are in contact with the outer surface of the antenna, the inner side of the connecting ring is movably sleeved with a ball, the outer side of the ball is movably sleeved with a guide rod, the guide rod is fixedly connected to the top of the inner wall of the evaporator, and the guide rod is slidably connected to the connecting ring.

7. The ORC power generation device with automatic liquid level adjustment according to claim 6 is characterized in that: A guide groove is provided inside the guide rod, and a ball is movably connected inside the guide groove.

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