CN217604061U - Multistage steam condensate water waste heat recovery device - Google Patents
Multistage steam condensate water waste heat recovery device Download PDFInfo
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- CN217604061U CN217604061U CN202220935212.9U CN202220935212U CN217604061U CN 217604061 U CN217604061 U CN 217604061U CN 202220935212 U CN202220935212 U CN 202220935212U CN 217604061 U CN217604061 U CN 217604061U
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Abstract
The utility model relates to a multistage steam condensate water waste heat recovery device relates to energy device technical field. The technical scheme is as follows: the utility model provides a multistage steam condensate waste heat recovery device, includes the flash tank, and the flash tank is provided with steam condensate water entry and steam condensate water export, and the top of flash tank is connected with the heat exchanger, is provided with refrigerant entry and refrigerant export in the heat exchanger. This device makes the steam condensate water take place the flash distillation through pressure variation to turn into steam again, used the heat exchanger and utilize the secondary steam to heat for the refrigerant body, retrieve the latent heat in the steam condensate water.
Description
Technical Field
The utility model relates to an energy technical field especially relates to a multistage steam condensate water waste heat recovery device.
Background
Steam is widely applied to various industries as a clean and safe energy carrier, such as power generation, petroleum, chemical engineering, printing and dyeing, papermaking, light spinning, brewing, rubber, pottery and other industrial fields. After the latent heat of vaporization of the steam is released from each steam consuming device, the steam becomes saturated condensed water at approximately the same temperature and pressure, and the use pressure of the steam is greater than the atmospheric pressure, so that the heat of the condensed water can reach 20% -30% of the total heat of the steam, and the higher the pressure and the temperature, the more the heat of the condensed water is, and the larger the proportion of the heat of the condensed water in the total heat of the steam is. It can be seen that the heat of the condensed water is recovered and effectively utilized, and the energy-saving device has great energy-saving potential. However, in the production process, the steam condensate water is generally directly discharged or directly supplements water for other water qualities, latent heat in the condensate water is wasted, and the steam condensate water is invisible waste of energy.
SUMMERY OF THE UTILITY MODEL
To the heat problem that the energy waste is caused to above-mentioned steam condensate aquatic heat not retrieving, the utility model provides a multistage steam condensate water waste heat recovery device.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multistage steam condensate waste heat recovery device, includes the flash tank, and the flash tank is provided with steam condensate water entry and steam condensate water export, and the top of flash tank is connected with the heat exchanger, and the heat exchanger is provided with refrigerant entry and refrigerant export. This device makes the steam condensate water take place the flash distillation through pressure variation to turn into steam again, used the heat exchanger and utilize the secondary steam to heat for the refrigerant body, retrieve the latent heat in the steam condensate water.
Preferably, the flash tank comprises at least two flash tanks, the two flash tanks are connected through a pipeline, and two ends of the pipeline are respectively connected with the steam condensate water inlet and the steam condensate water outlet of the two adjacent flash tanks. The flash tank is connected in series, so that the steam condensate is flashed for multiple times, the heat in the steam condensate is fully recovered, and the energy waste is reduced.
Preferably, a vacuum generator is connected to the flash tank. A vacuum environment is formed in the flash tank through the vacuum generator, so that the pressure in the flash tank is greatly reduced, the flash tank can flash again after the steam condensate water is flashed at normal pressure, and the heat in the steam condensate water is thoroughly recovered.
Preferably, the heat exchanger is a tube condenser. The contact area of the tubular condenser and the steam is large, heat in the steam can be fully transferred to a refrigerant, the steam is condensed again, and heat recovery is completed.
Preferably, a centrifugal pump is connected to the steam condensate outlet. The centrifugal pump can discharge or pump the condensate water after the waste heat recovery into other devices for water supplement.
Preferably, the heat exchanger is provided with an electromagnetic safety valve, the interior of the heat exchanger is provided with a pressure sensor, and the electromagnetic safety valve is electrically connected with the pressure sensor. The pressure sensor can detect the pressure in the heat exchanger, and when the pressure in the heat exchanger is too high, the electromagnetic safety valve is controlled to be opened to discharge steam.
Preferably, a liquid level sensor is arranged in the flash tank, an electromagnetic control valve is arranged at a steam condensate water inlet of the flash tank, and the liquid level sensor is electrically connected with the electromagnetic control valve. And detecting the liquid level of the steam condensate in the flash tank, controlling the switch of the electromagnetic control valve according to the liquid level height, further controlling the liquid level height of the flash tank, and when the liquid level of the condensate is too high, closing the electromagnetic control valve to stop conveying the steam condensate into the flash tank.
Preferably, a pressure sensor is arranged in the heat exchanger, an electromagnetic control valve is arranged at the steam condensate water inlet of the flash tank, and the pressure sensor is electrically connected with the electromagnetic control valve. The pressure sensor detects the pressure in the heat exchanger, and when the pressure in the heat exchanger is too high, the electromagnetic control valve is controlled to be closed, and the steam condensate water is stopped being conveyed into the flash tank.
The utility model discloses following beneficial effect has: the steam condensate water is subjected to heat recovery through the device, so that the latent heat in the condensate water can be recovered to the maximum extent, and the energy waste can be reduced; through the liquid level sensor and the pressure sensor, the device can realize automatic, safe and efficient operation, and reduces the defects caused by manual misoperation; the liquid level sensor and the electromagnetic control valve of the flash tank are in cascade interlocking, so that the switch of the electromagnetic control valve is automatically controlled, and the height of condensed water in each stage of flash tank is regulated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1. <xnotran> ,2, ,3, ,4, ,5, ,101, ,102, ,103, ,104, ,106, ,107, ,108, ,201, ,202, ,203, ,204, ,205, ,206, ,207, ,208, ,301, ,302, ,303, ,305, ,306, ,307, ,308, . </xnotran>
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1, a multi-stage steam condensate waste heat recovery device includes a first flash tank 1, and a first steam condensate inlet 101 and a first steam condensate outlet 108 are respectively disposed at two ends of the first flash tank 1. The top of the first flash tank 1 is connected with a first heat exchanger 103, and the top and the bottom of the first heat exchanger 103 are respectively provided with a first refrigerant outlet 106 and a first refrigerant inlet 107. The first steam condensate water inlet 101 is provided with a first electromagnetic control valve, the top of the first heat exchanger 103 is provided with a first electromagnetic safety valve 104, the first flash tank 1 is internally provided with a first liquid level sensor 102, the first heat exchanger 103 is internally provided with a first pressure sensor, the first electromagnetic control valve is electrically connected with the first liquid level sensor 102 and the first pressure sensor, and the first electromagnetic safety valve 104 is electrically connected with the first pressure sensor. The first flash tank 1 is connected with the second flash tank 2 through a first pipeline, and a second steam condensate inlet 201 and a second steam condensate outlet 208 are respectively arranged at two ends of the second flash tank 2. Both ends of the first pipeline are respectively connected with a first steam condensate outlet 108 and a second steam condensate inlet 101. The top of the second flash evaporator 2 is connected with a second heat exchanger 203, and the top and the bottom of the second heat exchanger 203 are respectively provided with a second refrigerant outlet 206 and a second refrigerant inlet 201. The second steam condensate inlet 201 is provided with a second electromagnetic control valve 205, the top of the second heat exchanger 203 is provided with a second electromagnetic safety valve 204, the second flash tank 2 is internally provided with a second liquid level sensor 202, the second heat exchanger 203 is internally provided with a second pressure sensor, the second electromagnetic control valve 205 is electrically connected with the second liquid level sensor 202 and the second pressure sensor, and the second electromagnetic safety valve 204 is electrically connected with the second pressure sensor. The second flash tank 2 is connected with a third flash tank 3 through a second pipeline, and a third steam condensate inlet 301 and a third steam condensate outlet 308 are respectively arranged at two ends of the third flash tank 3. Both ends of the second pipe are respectively connected with the second steam condensate outlet 208 and the third steam condensate inlet 301. The top of the third flash tank 3 is connected with a third heat exchanger 303, and the top and the bottom of the third heat exchanger 303 are respectively provided with a third refrigerant outlet 306 and a third refrigerant inlet 307. A third electromagnetic control valve 305 is arranged at the third steam condensate water inlet 301, a third liquid level sensor 302 is arranged in the third flash tank 3, and the third electromagnetic control valve 305 is electrically connected with the third liquid level sensor 302. The third steam condensate outlet 308 is connected to the centrifugal pump 5. The first heat exchanger 103, the second heat exchanger 203 and the third heat exchanger 303 all adopt tube condensers.
The utility model discloses a theory of operation: steam condensate water generated in a high-temperature and high-pressure environment enters the first flash tank 1, is vaporized due to sudden pressure reduction to form flash gas, and exchanges heat with a refrigerant through the first heat exchanger 103 to transfer heat to the refrigerant, and is condensed again and reflows to the first flash tank 1 to finish first heat recovery; the first liquid level sensor 102 can detect the liquid level height in the first flash tank 1 and control the on-off of the first electromagnetic control valve to further adjust the liquid level height in the first flash tank 1, the first pressure sensor can detect the pressure in the first heat exchanger 103, when the pressure is too high, the first electromagnetic safety valve 104 is controlled to be opened to discharge steam, and the first electromagnetic control valve can also be controlled to be closed to stop conveying steam condensate water into the first flash tank 1. The second flash tank 2 operates on the same principle as the first flash tank 1. Third flash tank 3 passes through vacuum generator 4, forms vacuum environment in third flash tank 3, further reduces pressure and temperature in the third flash tank 3, makes steam condensate water can flash once more in first flash tank 1 and the second flash tank 2, through third heat exchanger 303 and refrigerant heat exchange, makes the heat in the steam condensate water thoroughly retrieve, makes the temperature reduction in the condensate water, can discharge or let in other devices through centrifugal pump 5 and carry out the moisturizing.
It will be understood that when an element or layer is referred to as being "on," connected to, "or" coupled to "another element or layer, it can be directly on, connected or coupled to the other element or layer, and intervening elements or layers may also be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Spatially relative terms for ease of description, such as "below …", "below", "lower", "above", "over", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the description in this document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a multistage steam condensate waste heat recovery device, its characterized in that, includes the flash tank, and the flash tank is provided with steam condensate water entry and steam condensate water export, and the top of flash tank is connected with the heat exchanger, and the heat exchanger is provided with refrigerant entry and refrigerant export.
2. The multi-stage steam condensate waste heat recovery device of claim 1, wherein the flash evaporators comprise at least two flash evaporators, the two flash evaporators are connected through a pipeline, and two ends of the pipeline are respectively connected with the steam condensate inlets and the steam condensate outlets of the two adjacent flash evaporators.
3. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein the flash tank is connected with a vacuum generator.
4. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein the heat exchanger is a tube condenser.
5. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein a centrifugal pump is connected to the steam condensate outlet.
6. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein the heat exchanger is provided with an electromagnetic safety valve, the interior of the heat exchanger is provided with a pressure sensor, and the electromagnetic safety valve is electrically connected with the pressure sensor.
7. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein a liquid level sensor is arranged in the flash tank, an electromagnetic control valve is arranged at a steam condensate inlet of the flash tank, and the liquid level sensor is electrically connected with the electromagnetic control valve.
8. The multi-stage steam condensate waste heat recovery device of claim 1 or 2, wherein a pressure sensor is arranged in the heat exchanger, an electromagnetic control valve is arranged at the steam condensate inlet of the flash tank, and the pressure sensor is electrically connected with the electromagnetic control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220935212.9U CN217604061U (en) | 2022-04-20 | 2022-04-20 | Multistage steam condensate water waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220935212.9U CN217604061U (en) | 2022-04-20 | 2022-04-20 | Multistage steam condensate water waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217604061U true CN217604061U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220935212.9U Active CN217604061U (en) | 2022-04-20 | 2022-04-20 | Multistage steam condensate water waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217604061U (en) |
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- 2022-04-20 CN CN202220935212.9U patent/CN217604061U/en active Active
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