Novel energy-saving pure steam generator capable of efficiently removing non-condensable gas

Abstract

The invention relates to the technical field of steam generators, and discloses a novel energy-saving pure steam generator capable of efficiently removing non-condensable gas, comprising: a steam generation assembly for performing a heat exchange reaction on entered live steam to generate steam condensate and for generating secondary steam at the same time; the secondary steam separation assembly is used for separating secondary steam generated in the steam generation assembly and is connected with the top end of the steam generation assembly; the heating assembly is used for heating steam condensate water generated in the steam generation assembly and is connected with the side wall of the steam generation assembly; the preheating assembly is used for conducting heat exchange on the high-temperature steam condensate in the heating assembly and heating raw material water in the preheating assembly, and the preheating assembly is connected with the side wall of the heating assembly. The raw material water is further heated by using the high-temperature steam condensate of the heater, and then the live steam and the raw material water are well evaporated, so that the evaporation effect is improved, the discharge of the steam condensate is reduced, and the steam consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of steam generators, in particular to a novel pure steam generator capable of energy saving and high efficiency in removing non-condensable gases. Background Art

[0002] Steam is also called "water vapor". According to pressure and temperature, various types of steam are classified into saturated steam and superheated steam. The main uses of steam are heating and humidification; it can also generate power; it can be used as a machine drive, etc. The new energy-saving and efficient pure steam generator that removes non-condensable gases is widely used in the sterilization and disinfection of medical and health care, biopharmaceutical industry, food industry and related equipment, effectively preventing re-contamination by impurities such as heavy metals.

[0003] In the prior art, pure steam generators often have problems such as low heat exchange efficiency, high steam consumption, and high non-condensable gas content, and there is much room for improvement. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a new energy-saving and efficient pure steam generator for removing non-condensable gases, which solves the problems of low heat exchange efficiency and high steam consumption of the pure steam generator in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A new energy-saving and efficient pure steam generator for removing non-condensable gases, comprising:

[0006] The steam generating assembly is used to generate steam condensate by heat exchange reaction with incoming raw steam and is also used to generate secondary steam;

[0007] A secondary steam separation component is used to separate the secondary steam generated in the steam generating component, and is connected to the top of the steam generating component;

[0008] A heating component, used for heating the steam condensate generated in the steam generating component, and connected to the side wall of the steam generating component;

[0009] The preheating component is used to exchange heat with the high-temperature steam condensate in the heating component to heat the raw water inside, and is connected to the side wall of the heating component;

[0010] The non-condensable gas separation component is used to separate the non-condensable gas in the raw water discharged from the preheating component. The bottom end of the non-condensable gas separation component is connected to the side wall of the preheating component, and the side wall of the non-condensable gas separation component is connected to the top of the heating component.

[0011] Preferably, the steam generating assembly includes an evaporator, a raw steam inlet is provided on one side of the side wall of the evaporator, a high-temperature steam condensate outlet is provided on the other side of the side wall, a hot raw water inlet and a concentrated water outlet are fixedly installed at both ends of the bottom of the evaporator, and a secondary steam outlet is fixedly installed at the top of the evaporator.

[0012] Preferably, the secondary steam separation component includes a separator, a secondary steam inlet is fixedly installed on the top of the separator, a pure steam outlet is provided on the side wall of the separator, a condensate outlet is provided on the bottom of the separator, and a spiral plate vapor-liquid separation device distributed along the central axis is installed inside the separator, the interior of the spiral plate vapor-liquid separation device is open, and the top of the opening is connected upward to the secondary steam inlet.

[0013] Preferably, the heating component includes a heater, a high-temperature steam condensate inlet is provided on one side of the side wall of the heater, and a high-temperature steam condensate outlet 2 is provided on the other side of the side wall. The bottom end of the high-temperature steam condensate outlet 2 is connected to a steam condensate trap through a pipeline. The top of the heater is fixedly connected to a hot raw water inlet 2, and the bottom is equipped with a hot raw water outlet 1.

[0014] Preferably, the preheating component comprises a preheater, a steam condensate inlet is fixedly installed on the top of the preheater, a steam condensate outlet is fixedly installed on the bottom of the preheater, one end of the preheater is connected to a raw water inlet, and the other end is connected to a hot raw water outlet 2.

[0015] Preferably, the non-condensable gas separation component includes a non-condensable gas separation device, a hot raw water inlet three is fixedly connected to the bottom of the non-condensable gas separation device, two obliquely distributed vapor-liquid separation plates are installed on one side of the inside of the non-condensable gas separation device, two vertically distributed filtering structures are installed on the other side of the inside of the non-condensable gas separation device, and the top of the hot raw water inlet three passes through the bottom of the filtering structure, a hot raw water outlet three is installed on the side wall of the non-condensable gas separation device, and a non-condensable gas discharge port and a non-condensable gas throttling controller connected in series are installed on the top of the non-condensable gas separation device.

[0016] Preferably, the high-temperature steam condensate outlet 1 is connected to the high-temperature steam condensate inlet, and the hot raw water inlet 1 is connected to the hot raw water outlet 1.

[0017] Preferably, the secondary steam outlet is connected to the secondary steam inlet, the condensed water outlet is connected to the concentrated water outlet, and the connection extends downward into the concentrated water collection tank.

[0018] Preferably, the steam condensate trap is communicated with the steam condensate inlet, and the second hot raw water outlet is communicated with the third hot raw water inlet.

[0019] Preferably, the hot raw water outlet three and the hot raw water inlet two are connected.

[0020] Working principle: raw steam enters the evaporator from the raw steam inlet, and exchanges heat with the raw water in the tube side in the shell side. The steam condensate generated after the heat exchange is discharged from the high-temperature steam condensate outlet 1, and then enters the heater from the high-temperature steam condensate inlet to heat the raw water. After heat exchange, it is discharged from the high-temperature steam condensate outlet 2, and then enters the shell side of the preheater. After heat exchange and cooling by the raw water, it is discharged from the steam condensate outlet; at the same time, the raw water enters the tube side of the preheater, and after being preheated by the steam condensate, it will enter the non-condensable gas separation device for separation of non-condensable gases. At this time, the steam in the high-temperature raw water will pass upward through the top filter structure, and slow down its upward movement speed when it contacts the vapor-liquid separation plate. In the process, the steam will condense and turn into steam condensate The water falls, and the non-condensable gas in it will continue to be discharged upward through the non-condensable gas discharge port and the non-condensable gas throttling controller. The high-temperature raw water flows down from the bottom filter structure and enters the hot raw water inlet 2 of the heater. It is further preheated by the high-temperature steam condensate in the heater and enters the evaporator from the hot raw water outlet 1. Heat exchange occurs with the raw steam in the shell side in the tube side. The generated secondary steam is discharged from the secondary steam outlet, and then enters the separator from the secondary steam inlet. It is spirally separated by the spiral plate vapor-liquid separation device and then discharged from the pure steam outlet. At the same time, the raw water that has not evaporated in the evaporator is discharged from the concentrated water outlet. At the same time, the condensed water separated by the separator is connected to the concentrated water of the evaporator from the condensed water outlet and then discharged outside the machine.

[0021] The present invention provides a new type of energy-saving and efficient pure steam generator for removing non-condensable gases. It has the following beneficial effects:

[0022] 1. The present invention further heats the raw water by utilizing the high-temperature steam condensation of the heater, and then evaporates the raw water well through the live steam, thereby improving the evaporation effect, reducing the discharge of steam condensation, and reducing the steam consumption.

[0023] 2. The present invention transfers the heat of steam condensate to raw water through a preheater, and can cool the steam condensate at the same time, and discharge it out of the machine after cooling. At the same time, the raw water itself is preheated during the process of cooling the steam condensate, thereby realizing both the cooling of steam condensate and the preheating of raw water.

[0024] 3. The present invention connects the secondary steam inlet with the pure steam outlet through the spiral plate vapor-liquid separation channel. The secondary steam entering from the secondary steam inlet can be subjected to spiral vapor-liquid separation through the spiral plate vapor-liquid separation device to obtain pure steam, and then discharged from the pure steam outlet. Under the action of the centrifugal force of high-speed rotation, the separation factor can reach several hundred times the centrifugal force of gravity acceleration, and the tiny water droplets and mist in the secondary steam are centrifugally separated along the spiral tangent direction and thrown to the isolation cylinder wall, and then collected downward along the cylinder wall and discharged at the bottom of the separation chamber, thereby achieving a remarkably ideal separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a schematic structural diagram of a new type of energy-saving and efficient pure steam generator for removing non-condensable gases.

[0026] Figure 2 It is a schematic diagram of the flow direction of the raw steam and the secondary steam of the present invention.

[0027] Figure 3 Schematic diagram of the flow direction of raw water of the present invention.

[0028] Figure 4 It is a schematic diagram of the flow direction of steam condensate of the present invention.

[0029] Figure 5 It is a schematic structural diagram of the separator of the present invention.

[0030] Figure 6 It is a schematic structural diagram of the non-condensable gas separation device of the present invention.

[0031] Among them, 100, evaporator; 110, raw steam inlet; 120, high-temperature steam condensate outlet 1; 130, hot raw water inlet 1; 140, concentrated water outlet; 150, secondary steam outlet; 200, separator; 210, secondary steam inlet; 220, pure steam outlet; 230, condensate outlet; 240, spiral plate vapor-liquid separator; 300, heater; 310, high-temperature steam condensate inlet; 320, high-temperature steam condensate outlet 2; 330, Hot raw water inlet two; 340, hot raw water outlet one; 350, steam condensate drain valve; 400, preheater; 410, steam condensate inlet; 420, steam condensate outlet; 430, raw water inlet; 440, hot raw water outlet two; 500, non-condensable gas separation device; 510, hot raw water inlet three; 520, hot raw water outlet three; 530, non-condensable gas discharge port; 540, non-condensable gas throttling controller; 550, vapor-liquid separation plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings of the present invention specification to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example:

[0034] Please see attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides a new energy-saving and efficient pure steam generator for removing non-condensable gases, comprising:

[0035] The evaporator 100 is provided with a raw steam inlet 110, a high-temperature steam condensate outlet 120, a hot raw water inlet 130, a concentrated water outlet 140, a secondary steam outlet 150, a tube side (not shown in the figure) and a shell side (not shown in the figure). The raw steam inlet 110 is connected to the high-temperature steam condensate outlet 120 through the shell side, and the hot raw water inlet 130 and the concentrated water outlet 140 are both connected to the tube side;

[0036] Among them, the separator 200 is provided with a secondary steam inlet 210, a pure steam outlet 220 and a condensate outlet 230. The secondary steam inlet 210 is connected to the secondary steam outlet 150 of the evaporator 100 through a pipeline, and the condensate outlet 230 is connected to the concentrated water outlet 140 of the evaporator 100 through a pipeline.

[0037] The heater 300 is provided with a high-temperature steam condensate inlet 310, a high-temperature steam condensate outlet 320, a hot raw water inlet 330 and a hot raw water outlet 340. The hot raw water inlet 330 is connected with the hot raw water outlet 340 through a tube pass, and the hot raw water outlet 340 is connected with the hot raw water inlet 130 of the evaporator 100 through a pipeline. The high-temperature steam condensate inlet 310 is connected with the high-temperature steam condensate outlet 320 through a shell pass, and the high-temperature steam condensate inlet 310 is connected with the high-temperature steam condensate outlet 120 of the evaporator 100 through a pipeline.

[0038] The preheater 400 is provided with a steam condensate inlet 410, a steam condensate outlet 420, a raw water inlet 430 and a hot raw water outlet 2 440. The raw water inlet 430 is connected with the hot raw water outlet 2 440 through a tube pass. The hot raw water outlet 2 440 is connected with the hot raw water inlet 3 510 of the non-condensable gas separation device 500 through a pipeline. The steam condensate inlet 410 is connected with the steam condensate outlet 420 through a shell pass. The steam condensate inlet 410 is connected with the high-temperature steam condensate outlet 2 320 of the heater 300 through a pipeline.

[0039] The non-condensable gas separation device 500 is provided with a hot raw water inlet three 510, a hot raw water outlet three 520, a non-condensable gas discharge port 530 and a non-condensable gas throttling controller 540. The hot raw water inlet three 510 is connected to the hot raw water outlet two 440 of the preheater 400 through a pipeline, the hot raw water outlet three 520 is connected to the hot raw water inlet two 330 of the heater 300 through a pipeline, and the non-condensable gas discharge port 530 is connected to the non-condensable gas throttling controller 540 to be discharged outside the machine.

[0040] In this embodiment, the heat of steam condensate is transferred to raw water through the preheater 400, and the steam condensate entering the preheater 400 is cooled and then discharged out of the machine. At the same time, the raw water itself is preheated during the cooling of the steam condensate, thereby achieving both steam condensate cooling and raw water preheating.

[0041] In this embodiment, the preheated raw water is further heated by the high-temperature steam condensate through the heater 300, thereby improving the evaporation effect, reducing the discharge of steam condensate, improving the heat exchange efficiency, and reducing the steam consumption.

[0042] Preferably, a steam condensate trap 350 is provided between the preheater 400 and the heater 300, and the steam condensate trap 350 is used to control the discharge of condensate from the heater 300. The trap inlet is connected to the high-temperature steam condensate outlet 320 of the heater 300 through a pipeline, and the trap outlet is connected to the steam condensate inlet 410 of the preheater 400 through a pipeline.

[0043] like Figure 5 As shown, based on the above embodiment, the separator 200 is provided with a spiral plate vapor-liquid separator 240 , which is a multi-channel structure, and the secondary steam inlet 210 is connected to the pure steam outlet 220 through the spiral plate vapor-liquid separator 240 .

[0044] like Figure 6 As shown, on the basis of the above embodiment, the non-condensable gas separation device 500 is provided with a vapor-liquid separation plate 550, and the vapor-liquid separation plate 550 is a porous plate structure. The hot raw water inlet three 510 is connected with the hot raw water outlet three 520 through the vapor-liquid separation plate 550.

[0045] In this embodiment, the secondary steam inlet 210 is connected to the pure steam outlet 220 through the spiral plate vapor-liquid separation device 240. The secondary steam entering from the secondary steam inlet 210 can be subjected to spiral vapor-liquid separation through the spiral plate vapor-liquid separation device 240 to obtain pure steam, and then discharged from the pure steam outlet 220. Under the action of the centrifugal force of high-speed rotation, the separation factor can reach several hundred times the centrifugal force of gravitational acceleration, and the tiny water droplets and mist contained in the secondary steam are centrifugally separated along the spiral tangent direction and thrown toward the isolation cylinder wall, and then gathered downward along the cylinder wall to be discharged at the bottom of the separation chamber, thereby achieving a significantly ideal separation effect.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases, characterized in that: include: The steam generating assembly is used to generate steam condensate by heat exchange reaction with incoming raw steam and is also used to generate secondary steam; A secondary steam separation component is used to separate the secondary steam generated in the steam generating component, and is connected to the top of the steam generating component; A heating component, used for heating the steam condensate generated in the steam generating component, and connected to the side wall of the steam generating component; The preheating component is used to exchange heat with the high-temperature steam condensate in the heating component to heat the raw water inside, and is connected to the side wall of the heating component; The non-condensable gas separation component is used to separate the non-condensable gas in the raw water discharged from the preheating component. The bottom end of the non-condensable gas separation component is connected to the side wall of the preheating component, and the side wall of the non-condensable gas separation component is connected to the top of the heating component.

2. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 1, characterized in that: The steam generating assembly comprises an evaporator (100), a raw steam inlet (110) is provided on one side of a side wall of the evaporator (100), a high-temperature steam condensate outlet (120) is provided on the other side of the side wall, a hot raw water inlet (130) and a concentrated water outlet (140) are fixedly mounted at both ends of the bottom of the evaporator (100), and a secondary steam outlet (150) is fixedly mounted at the top of the evaporator (100).

3. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 2, characterized in that: The secondary steam separation component comprises a separator (200), a secondary steam inlet (210) is fixedly mounted on the top of the separator (200), a pure steam outlet (220) is disposed on the side wall of the separator (200), a condensate outlet (230) is disposed on the bottom end of the separator (200), and a spiral plate vapor-liquid separation device (240) distributed along the central axis is installed inside the separator (200), the interior of the spiral plate vapor-liquid separation device (240) is in an open shape, and the top end of the opening is connected upward to the secondary steam inlet (210).

4. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 2, characterized in that: The heating component comprises a heater (300), wherein a high-temperature steam condensate inlet (310) is provided on one side of a side wall of the heater (300), and a high-temperature steam condensate outlet 2 (320) is provided on the other side of the side wall, wherein the bottom end of the high-temperature steam condensate outlet 2 (320) is connected to a steam condensate drain valve (350) via a pipeline, and a hot raw water inlet 2 (330) is fixedly connected to the top end of the heater (300), and a hot raw water outlet 1 (340) is installed at the bottom end.

5. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 4, characterized in that: The preheating component comprises a preheater (400), a steam condensate inlet (410) is fixedly installed on the top of the preheater (400), a steam condensate outlet (420) is fixedly installed on the bottom of the preheater (400), one end of the preheater (400) is connected to a raw water inlet (430), and the other end is connected to a hot raw water outlet 2 (440).

6. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 5, characterized in that: The non-condensable gas separation component comprises a non-condensable gas separation device (500), a third hot raw water inlet (510) is fixedly connected to the bottom of the non-condensable gas separation device (500), two obliquely distributed vapor-liquid separation plates (550) are installed on one side of the interior of the non-condensable gas separation device (500), two vertically distributed filtering structures are installed on the other side of the interior of the non-condensable gas separation device (500), and the top of the third hot raw water inlet (510) passes through the bottom filtering structure, a third hot raw water outlet (520) is installed on the side wall of the non-condensable gas separation device (500), and a non-condensable gas discharge port (530) and a non-condensable gas throttling controller (540) are installed in series at the top of the non-condensable gas separation device (500).

7. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 4, characterized in that: The high-temperature steam condensate outlet 1 (120) and the high-temperature steam condensate inlet (310) are connected, and the hot raw water inlet 1 (130) and the hot raw water outlet 1 (340) are connected.

8. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 3, characterized in that: The secondary steam outlet (150) is connected to the secondary steam inlet (210), and the condensed water outlet (230) is connected to the concentrated water outlet (140), and the connection extends downward into the concentrated water collection tank.

9. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 6, characterized in that: The steam condensate trap (350) is connected to the steam condensate inlet (410), and the hot raw water outlet 2 (440) is connected to the hot raw water inlet 3 (510).

10. A new type of energy-saving and efficient pure steam generator for removing non-condensable gases according to claim 6, characterized in that: The hot raw water outlet three (520) and the hot raw water inlet two (330) are connected.

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