Condensate water liquid level control device of evaporation system

Abstract

The utility model discloses a condensate water liquid level control device of an evaporation system, which comprises a body component, a liquid level control device and a liquid level control device, and the body component comprises a condensate water tank, a non-condensable gas exhaust port, a condensate water outlet and a support column; the heat exchange component comprises a condensate pump, a liquid level meter shell, a balance pipe connector, a backflow pipe connector, a liquid level meter upper connector, a liquid level meter lower connector, a balance pipe body, a backflow pipe body and a connecting pipe, and one side of the outer surface of the condensate water tank is connected with the condensate pump. When an existing evaporation system condensate water liquid level control device is actually used, when the liquid level is reduced to a certain value, a regulating valve is closed, condensate water is prevented from flowing out continuously, and although the automatic regulating mechanism can keep the liquid level of a condensate water tank within a set safety range, the condensate water cannot flow out continuously. The problems that in an evaporation system, condensate water generally enters a preheater to exchange heat with feed liquid to recover heat in the condensate water, and the heat recovery effect of the condensate water is poor due to unstable flow or even cut-off are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a condensed water level control device for an evaporation system. Background Art

[0002] The liquid level of the condensate tank of the evaporation system needs to be controlled within the set safety range to ensure the stable operation of the evaporation system. Through precise design and layout, the liquid level of high-temperature, high-humidity steam condensate can be accurately detected and controlled in a closed environment.

[0003] In actual use, the existing evaporation system condensate level control device is generally implemented by a condensate regulating valve. The valve is automatically adjusted according to the liquid level in the tank to maintain the liquid level at a normal value. When the liquid level rises to a certain value, the regulating valve opens, allowing the condensate to flow out and lower the liquid level. When the liquid level drops to a certain value, the regulating valve closes to prevent the condensate from continuing to flow out. Although this automatic adjustment mechanism can keep the liquid level of the condensate tank within the set safety range, the control method of the regulating valve has the problem of unstable condensate drainage flow and even interruption of flow. In the evaporation system, condensate generally enters the preheater for heat exchange with the feed liquid to recover the heat in the condensate. Unstable flow or even interruption of flow leads to poor condensate heat recovery effect, heat waste, increased energy efficiency of the evaporation system, and too high condensate drainage temperature affects condensate reuse. Utility Model Content

[0004] The purpose of the present invention is to provide a condensate level control device for an evaporation system to solve the problem raised in the above background technology. In actual use, the existing condensate level control device for an evaporation system is generally implemented by a condensate regulating valve. The valve is automatically adjusted according to the liquid level of the tank to maintain the liquid level at a normal value. When the liquid level rises to a certain value, the regulating valve opens to allow the condensate to flow out and lower the liquid level. When the liquid level drops to a certain value, the regulating valve closes to prevent the condensate from continuing to flow out. Although this automatic adjustment mechanism can keep the liquid level of the condensate tank within a set safety range, the control method of the regulating valve has the problem that the condensate drainage flow is unstable and even interrupted. In the evaporation system, the condensate generally enters the preheater to exchange heat with the feed liquid to recover the heat in the condensate. The unstable flow or even interruption leads to poor condensate heat recovery effect, heat waste, increased energy efficiency of the evaporation system, and the condensate drainage temperature is too high, affecting the reuse of the condensate.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a condensed water level control device for an evaporation system, comprising:

[0007] The main body component includes a condensate tank, a non-condensable gas exhaust port, a condensate drain port and a support column;

[0008] A heat exchange component, comprising a condensate pump, a liquid level gauge housing, a balancing pipe interface, a return pipe interface, an upper liquid level gauge interface, a lower liquid level gauge interface, a balancing pipe body, a return pipe body and a connecting pipe. One side of the outer surface of the condensate tank is connected to the condensate pump, and the upper part of one side of the outer surface of the condensate tank is respectively connected to the balancing pipe interface and the return pipe interface. One end of the balancing pipe body is connected to the inside of the balancing pipe interface, and one end of the return pipe body is connected to the inside of the return pipe interface. The lower part of one side of the outer surface of the condensate pump is connected to the connecting pipe, and the other ends of the balancing pipe body and the return pipe body are both connected to the upper surface of the connecting pipe.

[0009] Furthermore, one side of the outer surface of the condensed water tank is respectively connected to an upper interface of the liquid level gauge and a lower interface of the liquid level gauge, and the liquid level gauge housing is connected between the upper interface of the liquid level gauge and the lower interface of the liquid level gauge.

[0010] Furthermore, it also includes a discharge component, which includes a condensate inlet, a water inlet pipe and a condensate outlet. One end of the upper surface of the connecting pipe is connected to the condensate outlet, the upper part of the other side of the outer surface of the condensate tank is connected to the condensate inlet, and one side of the condensate inlet is connected to the water inlet pipe.

[0011] Furthermore, a non-condensable gas exhaust port is connected to the middle of the top of the condensate water tank, a condensate drain port is connected to the middle of the bottom of the condensate water tank, and a support column is welded to the lower part of the outer surface of the condensate water tank.

[0012] Furthermore, it also includes a fixing component, which includes a mounting ring, a sealing gasket, an inner groove, a rotating shaft, a positioning plate, a positioning groove, a support block, a positioning groove and a moving block. One side of the outer surface of the balancing tube body and the return tube body is connected with a mounting ring, and one side of the outer surface of the balancing tube interface and the return tube interface is provided with an inner groove. One side of the outer surface of the mounting ring is adhesively connected with a sealing gasket, and the sealing gasket is connected to the inside of the inner groove by inlaying. The upper and lower parts of the outer surface of the balancing tube body and the return tube body are connected with a rotating shaft, and the outer surface of the rotating shaft is rotatably connected with a positioning plate. The upper and lower parts of the outer surface of the balancing tube interface and the return tube interface are provided with a positioning groove, and the positioning plate is inlaid and connected to the inside of the positioning groove.

[0013] Furthermore, the upper and lower parts of one end of the outer surface of the balancing pipe interface and the return pipe interface are connected to a movable block, the bottom of the support block is movably connected to the outer surface of the movable block, a fixed groove is opened inside the support block, and the positioning plate is connected to the inside of the fixed groove by insertion.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The utility model provides a condensate pump and a liquid level gauge housing on the outside of the condensate tank, and the condensate tank is equipped with a liquid level gauge housing and a condensate pump. The operating frequency of the condensate pump is linked to the liquid level, and the condensate drainage flow is controlled by adjusting the operating frequency of the condensate pump. In order to ensure the stability of the condensate liquid level and drainage flow control, a reflux pipe body that returns to the condensate tank is provided at the condensate pump outlet to reduce the frequency range of the condensate pump operation. A balancing pipe body connected to the gas phase of the condensate tank is provided at the condensate pump inlet. The gas existing at the inlet end of the condensate pump returns to the condensate tank to reduce water pump cavitation. A check valve is provided on the external discharge pipeline of the condensate pump to prevent external gas from flowing back, thereby ensuring the stability of the condensate tank liquid level and the stability of the condensate drainage flow, improving the heat exchange effect between the feed and the condensate, ensuring the stable operation of the evaporation system, and saving the energy consumption of the evaporation system.

[0016] Based on the above beneficial effects, by providing a mounting ring, a rotating shaft and a positioning plate on the outside of the balancing pipe body and the return pipe body, and opening a positioning groove on the outside of the balancing pipe interface and the return pipe interface, when the balancing pipe body and the return pipe body are respectively installed inside the balancing pipe interface and the return pipe interface, the positioning plate is rotated by the rotating shaft so that the positioning plate is embedded in the positioning groove, and then the support block is moved by the moving block so that the positioning plate is inserted into the inside of the fixed groove, thereby fixing the position of the positioning plate after embedding, avoiding the loosening or even falling off of the balancing pipe body and the return pipe body after installation, and improving the stability of the balancing pipe body and the return pipe body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is an overall schematic diagram of the condensate tank of the present utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled balancing pipe interface, return pipe interface, balancing pipe body, and return pipe body of the utility model;

[0020] Figure 3 This is a schematic diagram of the condensed water tank of the utility model after rotation;

[0021] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of part A in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 11. Condensate tank; 12. Non-condensable gas exhaust port; 13. Condensate drain port; 14. Support column;

[0024] 21. Condensate pump; 22. Liquid level gauge housing; 23. Equalizing pipe connection; 24. Return pipe connection; 25. Upper connection of liquid level gauge; 26. Lower connection of liquid level gauge; 27. Equalizing pipe body; 28. Return pipe body; 29. Connecting pipe;

[0025] 31. Condensate inlet; 32. Water inlet pipe; 33. Condensate outlet;

[0026] 41. Mounting ring; 42. Sealing gasket; 43. Inner groove; 44. Rotating shaft; 45. Positioning plate; 46. Positioning groove; 47. Support block; 48. Fixed groove; 49. Moving block. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] See also Figure 1-4 As shown, this embodiment is a condensed water level control device for an evaporation system, comprising:

[0031] The main body component includes a condensate tank 11, a non-condensable gas exhaust port 12, a condensate drain port 13 and a support column 14;

[0032] The heat exchange component includes a condensate pump 21, a liquid level gauge housing 22, a balancing pipe interface 23, a return pipe interface 24, an upper liquid level gauge interface 25, a lower liquid level gauge interface 26, a balancing pipe body 27, a return pipe body 28 and a connecting pipe 29. One side of the outer surface of the condensate tank 11 is connected to the condensate pump 21, and the upper part of one side of the outer surface of the condensate tank 11 is respectively connected to the balancing pipe interface 23 and the return pipe interface 24. One end of the balancing pipe body 27 is connected to the inside of the balancing pipe interface 23, and one end of the return pipe body 28 is connected to the inside of the return pipe interface 24. The lower part of one side of the outer surface of the condensate pump 21 is connected to the connecting pipe 29, and the other ends of the balancing pipe body 27 and the return pipe body 28 are both connected to the upper surface of the connecting pipe 29;

[0033] The operating frequency of the condensate pump 21 is linked to the liquid level. The condensate drainage flow is controlled by adjusting the operating frequency of the condensate pump 21. In order to ensure the stability of the condensate liquid level and drainage flow control, a reflux pipe body 28 is set at the outlet of the condensate pump 21 to flow back to the condensate tank 11, so as to reduce the frequency range of the operation of the condensate pump 21. A balancing pipe body 27 connected to the gas phase of the condensate tank 11 is configured at the inlet of the condensate pump 21. The gas existing at the inlet end of the condensate pump 21 returns to the condensate tank 11 to reduce water pump cavitation. A check valve is configured on the external discharge pipeline of the condensate pump 21 to prevent external gas from flowing back and ensure the stability of the liquid level in the condensate tank 11.

[0034] One side of the outer surface of the condensed water tank 11 is connected to the upper interface 25 and the lower interface 26 of the liquid level gauge, and the liquid level gauge housing 22 is connected between the upper interface 25 and the lower interface 26 of the liquid level gauge;

[0035] The liquid level gauge housing 22 is installed and used through the liquid level gauge upper interface 25 and the liquid level gauge lower interface 26 , and the depth of the liquid can be recognized according to the liquid level gauge.

[0036] The condensate tank 11 further includes a discharge component, which includes a condensate inlet 31, a water inlet pipe 32, and a condensate outlet 33. One end of the upper surface of the connecting pipe 29 is connected to the condensate outlet 33, and the upper part of the other side of the outer surface of the condensate tank 11 is connected to the condensate inlet 31. One side of the condensate inlet 31 is connected to the water inlet pipe 32.

[0037] The middle of the top of the condensate tank 11 is connected to a non-condensable gas exhaust port 12, the middle of the bottom of the condensate tank 11 is connected to a condensate drain port 13, and the lower part of the outer surface of the condensate tank 11 is welded to a support column 14;

[0038] As the condensed water tank 11 operates, the support column 14 at the bottom can support the condensed water tank 11 .

[0039] Working principle: first, the condensate tank 11 is equipped with a liquid level gauge housing 22 and a condensate pump 21. The operating frequency of the condensate pump 21 is linked to the liquid level. The condensate drainage flow is controlled by adjusting the operating frequency of the condensate pump 21. In order to ensure the stability of the condensate liquid level and drainage flow control, a reflux pipe body 28 is set at the outlet of the condensate pump 21 to flow back to the condensate tank 11, so as to reduce the frequency range of the operation of the condensate pump 21. A balance pipe body 27 connected to the gas phase of the condensate tank 11 is arranged at the inlet of the condensate pump 21. The gas existing at the inlet end of the condensate pump 21 returns to the condensate tank 11 to reduce the cavitation of the water pump. A check valve is arranged on the external discharge pipeline of the condensate pump 21 to prevent the backflow of external gas, so as to ensure the stability of the liquid level of the condensate tank 11 and the stability of the condensate drainage flow, improve the heat exchange effect between the feed and the condensate, ensure the stable operation of the evaporation system, and save the energy consumption of the evaporation system.

[0040] See also Figure 1-4 As shown, this embodiment is based on the above-mentioned embodiment 1 and further includes a fixing component, wherein the fixing component includes a mounting ring 41, a sealing gasket 42, an inner groove 43, a rotating shaft 44, a positioning plate 45, a positioning groove 46, a supporting block 47, a positioning groove 46 and a moving block 49. One side of the outer surface of the balancing pipe body 27 and the return pipe body 28 is connected to the mounting ring 41, one side of the outer surface of the balancing pipe interface 23 and the return pipe interface 24 is provided with an inner groove 43, one side of the outer surface of the mounting ring 41 is bonded and connected to the sealing gasket 42, and the sealing gasket 42 is connected to the inside of the inner groove 43 by inlaying, the upper and lower parts of the outer surfaces of the balancing pipe body 27 and the return pipe body 28 are connected to the rotating shaft 44, the outer surface of the rotating shaft 44 is rotatably connected to the positioning plate 45, the upper and lower parts of the outer surfaces of the balancing pipe interface 23 and the return pipe interface 24 are provided with a positioning groove 46, and the positioning plate 45 is inlaid and connected to the inside of the positioning groove 46;

[0041] When the balancing pipe body 27 and the return pipe body 28 are respectively installed inside the balancing pipe interface 23 and the return pipe interface 24, the positioning plate 45 is rotated by the rotating shaft 44, so that the positioning plate 45 is embedded in the positioning groove 46, so that the balancing pipe body 27 and the balancing pipe interface 23, and the return pipe body 28 and the return pipe interface 24 are installed together.

[0042] The upper and lower portions of one end of the outer surface of the balance pipe interface 23 and the return pipe interface 24 are connected to a movable block 49. The bottom of the support block 47 is movably connected to the outer surface of the movable block 49. The support block 47 has a fixed groove 48 formed inside, and the positioning plate 45 is connected to the inside of the fixed groove 48 by insertion.

[0043] After the positioning plate 45 is embedded in the positioning groove 46 , the support block 47 moves so that the positioning plate 45 is fixed in the fixing groove 48 .

[0044] Working principle: first, when the balancing pipe body 27 and the return pipe body 28 are respectively installed inside the balancing pipe interface 23 and the return pipe interface 24, the sealing gasket 42 is embedded in the inner groove 43 at the same time, which can achieve a sealing effect, and the positioning plate 45 is rotated by the rotating shaft 44, so that the positioning plate 45 is embedded in the positioning groove 46, and then the support block 47 is moved by the moving block 49, so that the positioning plate 45 is inserted into the fixed groove 48, thereby fixing the position of the positioning plate 45 after embedding, avoiding the loosening or even falling off of the balancing pipe body 27 and the return pipe body 28 after installation, and improving the stability of the balancing pipe body 27 and the return pipe body 28 after installation.

[0045] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A condensed water level control device for an evaporation system, characterized in that: include: A main body component, the main body component comprising a condensate tank (11), a non-condensable gas exhaust port (12), a condensate drain port (13), and a support column (14); A heat exchange component, the heat exchange component comprising a condensate pump (21), a liquid level gauge housing (22), a balancing pipe interface (23), a return pipe interface (24), an upper liquid level gauge interface (25), a lower liquid level gauge interface (26), a balancing pipe body (27), a return pipe body (28) and a connecting pipe (29), one side of the outer surface of the condensate tank (11) is connected to the condensate pump (21), the upper part of one side of the outer surface of the condensate tank (11) is respectively connected to the balancing pipe interface (23) and the return pipe interface (24), one end of the balancing pipe body (27) is connected to the inside of the balancing pipe interface (23), one end of the return pipe body (28) is connected to the inside of the return pipe interface (24), the lower part of one side of the outer surface of the condensate pump (21) is connected to the connecting pipe (29), and the other ends of the balancing pipe body (27) and the return pipe body (28) are both connected to the upper surface of the connecting pipe (29).

2. The evaporation system condensate level control device according to claim 1, characterized in that: One side of the outer surface of the condensed water tank (11) is connected to an upper interface (25) of the liquid level gauge and a lower interface (26) of the liquid level gauge, respectively. The liquid level gauge housing (22) is connected between the upper interface (25) of the liquid level gauge and the lower interface (26).

3. The evaporation system condensate level control device according to claim 1, characterized in that: The device further comprises a discharge component, the discharge component comprising a condensed water inlet (31), a water inlet pipe (32) and a condensed water outlet (33), one end of the upper surface of the connecting pipe (29) is connected to the condensed water outlet (33), the upper portion of the other side of the outer surface of the condensed water tank (11) is connected to the condensed water inlet (31), and one side of the condensed water inlet (31) is connected to the water inlet pipe (32).

4. The condensed water level control device for an evaporation system according to claim 1, characterized in that: The middle of the top of the condensate tank (11) is connected to a non-condensable gas exhaust port (12), the middle of the bottom of the condensate tank (11) is connected to a condensate drain port (13), and the lower part of the outer surface of the condensate tank (11) is welded to a support column (14).

5. The evaporation system condensate level control device according to claim 1, characterized in that: The device further comprises a fixing component, wherein the fixing component comprises a mounting ring (41), a sealing gasket (42), an inner groove (43), a rotating shaft (44), a positioning plate (45), a positioning groove (46), a supporting block (47), a positioning groove (46) and a moving block (49), one side of the outer surface of the balancing pipe body (27) and the return pipe body (28) is connected to the mounting ring (41), one side of the outer surface of the balancing pipe interface (23) and the return pipe interface (24) is provided with an inner groove (43), the mounting ring (41) ) is bonded to one side of the outer surface thereof with a sealing gasket (42), which is connected to the inside of the inner groove (43) by means of an inlay, and the upper and lower portions of the outer surfaces of the balancing tube body (27) and the return tube body (28) are connected to a rotating shaft (44), and the outer surface of the rotating shaft (44) is rotatably connected to a positioning plate (45), and the upper and lower portions of the outer surfaces of the balancing tube interface (23) and the return tube interface (24) are provided with a positioning groove (46), and the positioning plate (45) is inlaid and connected to the inside of the positioning groove (46).

6. The evaporation system condensate level control device according to claim 5, characterized in that: The upper and lower parts of one end of the outer surface of the balance pipe interface (23) and the return pipe interface (24) are both connected to a moving block (49), the bottom of the support block (47) is movably connected to the outer surface of the moving block (49), the interior of the support block (47) is provided with a fixing groove (48), and the positioning plate (45) is connected to the interior of the fixing groove (48) by insertion.

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