Steam recovery unit

Abstract

This utility model provides a steam recovery device, comprising: a storage tank with an inlet and a first outlet spaced apart; a steam exhaust pipe, including a first pipe section, the inlet end of which is connected to the first outlet, the first pipe section being inclined, and the outlet end of which is higher than the inlet end; a spray structure, including spray heads disposed within the first pipe section, each spray head having a second outlet; and a water supply structure, including a first water supply pipe connected to the spray heads. The technical solution of this application effectively solves the problem of high steam heat waste rate in related technologies.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and more specifically, to a steam recovery device. Background Technology

[0002] In dairy processing, steam plays a crucial role as a heat source in sterilization, evaporation, and drying. During processing, steam is converted into high-temperature condensate, which is quite hot. To recycle this condensate, it is typically collected in a condensate tank and then pumped back to the boiler for reuse.

[0003] In existing technologies, when condensate is discharged into a condensate tank, the steam in the condensate tank is squeezed out, and the squeezed-out steam is directly discharged into the external environment, resulting in heat waste. Utility Model Content

[0004] The main objective of this invention is to provide a steam recovery device to solve the problem of high heat waste rate of steam in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a steam recovery device is provided, comprising: a storage tank having an inlet and a first outlet spaced apart therebetween; a steam exhaust pipe including a first pipe section having an inlet end connected to the first outlet, the first pipe section being inclined and the outlet end being higher than the inlet end; a spray structure including spray heads disposed within the first pipe section, each spray head having a second outlet; and a water supply structure including a first water supply pipe connected to the spray heads.

[0006] Furthermore, an installation port is provided on the first pipe section, and a spray head is installed at the installation port. The spray head includes a connecting pipe and a spray ball. The first end of the connecting pipe is connected to the first water supply pipe, and the spray ball is installed at the second end of the connecting pipe. The spray ball has a hollow internal structure, and the second outlet is installed on the spray ball.

[0007] Furthermore, the spray head also includes an installation pipe, which is detachably inserted into the installation port, and a connecting pipe is rotatably disposed inside the installation pipe.

[0008] Furthermore, the second outlet includes a strip-shaped through hole disposed on the outer surface of the spray ball.

[0009] Furthermore, there are multiple spray heads and multiple first water supply pipes. The water supply structure also includes a second water supply pipe, which is connected to multiple first water supply pipes. The steam recovery device also includes a water supply valve, which is installed on the second water supply pipe and has a first open state and a first closed state.

[0010] Furthermore, the steam recovery device also includes a temperature measuring element and a controller. The controller is connected to both the temperature measuring element and the water supply valve. The temperature measuring element is installed in the first pipe section. When the measured value of the temperature measuring element is greater than or equal to the preset temperature value, the controller controls the water supply valve to switch from the first closed state to the first open state.

[0011] Furthermore, the temperature measuring element is installed between the spray structure and the outlet end of the first pipe section.

[0012] Furthermore, a third outlet is provided at the bottom of the storage tank, and the steam recovery device also includes a water outlet pipe and a discharge valve provided on the water outlet pipe. The water outlet pipe is connected to the third outlet, and the controller is connected to the discharge valve. The discharge valve has a second open state and a second closed state, and the controller controls the discharge valve to switch between the second closed state and the second open state.

[0013] Furthermore, multiple spray heads are spaced apart along the axial direction of the first pipe section.

[0014] Furthermore, the exhaust pipe also includes a second pipe section and / or a third pipe section, wherein the second pipe section is disposed between the first outlet and the inlet end of the first pipe section, the inlet end of the third pipe section is connected to the outlet end of the first pipe section, and the outlet end of the third pipe section is connected to the outside of the steam recovery device.

[0015] The steam recovery device, utilizing the technical solution of this utility model, includes a storage tank, a steam exhaust pipe, a spray structure, and a water supply structure. A first water body enters the storage tank through the inlet, expelling the steam from the tank. The steam then flows through the first outlet into a first pipe section. Spray heads spray a second water body, exchanging heat with the steam to lower its temperature, thus transforming the steam into a third water body, which flows back into the storage tank through the first pipe section. The first pipe section is inclined, allowing the third water body to flow more easily from the first pipe section into the storage tank. The second water body is sprayed into the first pipe section through the second outlet. A first water supply pipe delivers the second water body to the spray heads. Therefore, the technical solution of this application effectively solves the problem of high steam heat waste rate in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A perspective structural schematic diagram of an embodiment of the steam recovery device according to the present invention is shown;

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the exhaust pipe of the steam recovery device;

[0019] Figure 3 It shows Figure 2 A cross-sectional view of the exhaust pipe;

[0020] Figure 4 It shows Figure 3 A partially enlarged schematic diagram of point A on the exhaust pipe;

[0021] Figure 5 It shows Figure 2 A partial three-dimensional structural diagram of the first section of the exhaust pipe;

[0022] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the spray head of the steam recovery device;

[0023] Figure 7 It shows Figure 6 A schematic diagram of the exploded structure of the spray head.

[0024] The above figures include the following reference numerals:

[0025] 10. Storage tank; 11. Inlet; 12. First outlet; 13. Third outlet; 20. Exhaust pipe; 21. First pipe section; 211. Mounting port; 22. Second pipe section; 23. Third pipe section; 30. Spray structure; 31. Spray head; 311. Second outlet; 312. Connecting pipe; 313. Spray ball; 314. Mounting pipe; 40. Water supply structure; 41. First water supply pipe; 42. Second water supply pipe; 50. Water supply valve; 60. Temperature measuring element; 70. Water outlet pipe; 80. Discharge valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0029] like Figure 1 As shown, the steam recovery device of this embodiment includes: a storage tank 10, a steam exhaust pipe 20, a spray structure 30, and a water supply structure 40. The storage tank 10 has an inlet 11 and a first outlet 12 spaced apart. The steam exhaust pipe 20 includes a first pipe section 21, the inlet end of which is connected to the first outlet 12. The first pipe section 21 is inclined, and its outlet end is higher than its inlet end. The spray structure 30 includes spray heads 31, which are disposed within the first pipe section 21. Each spray head 31 has a second outlet 311. The water supply structure 40 includes a first water supply pipe 41, which is connected to the spray heads 31.

[0030] The steam recovery device using the technical solution of this embodiment includes a storage tank 10, a steam exhaust pipe 20, a spray structure 30, and a water supply structure 40. A first water body enters the storage tank 10 through the inlet 11, squeezing out the steam within the storage tank 10. The steam then flows through the first outlet 12 into the first pipe section 21. The spray head 31 sprays a second water body, exchanging heat with the steam, thus lowering the steam temperature. The steam is converted into a third water body, which then flows back into the storage tank 10 through the first pipe section 21. The first pipe section 21 is inclined, allowing the third water body to flow more easily from the first pipe section 21 into the storage tank 10. The second water body is sprayed into the first pipe section 21 through the second outlet 311. The first water supply pipe 41 delivers the second water body to the spray head 31. Therefore, the technical solution of this embodiment effectively solves the problem of high steam heat waste rate in related technologies.

[0031] It should be noted that after the third water body flows back into storage tank 10, it flows into the boiler along with the fourth water body in storage tank 10. The temperatures of the first, second, third, and fourth water bodies are different.

[0032] Specifically, the angle between the axis of the first pipe section 21 and the horizontal plane is greater than or equal to 20° and less than or equal to 60°, and can be 20°, 25°, 30°, 40°, 45°, 50° or 60°.

[0033] like Figure 4 As shown, in this embodiment, an installation port 211 is provided on the first pipe section 21, and a spray head 31 is disposed at the installation port 211. The spray head 31 includes a connecting pipe 312 and a spray ball 313. The first end of the connecting pipe 312 is connected to the first water supply pipe 41, and the spray ball 313 is disposed at the second end of the connecting pipe 312. The spray ball 313 has a hollow internal structure, and a second outlet 311 is disposed on the spray ball 313. The installation port 211 facilitates the installation of the spray head 31 onto the first pipe section 21. The second water body can enter the connecting pipe 312 through the first water supply pipe 41, and then enter the spray ball 313 through the connecting pipe 312, and be sprayed out of the spray ball 313 through the second outlet 311.

[0034] like Figure 4 and Figure 5As shown, in this embodiment, the spray head 31 also includes an installation pipe 314, which is detachably inserted into the installation port 211. A connecting pipe 312 is rotatably disposed within the installation pipe 314. The detachable installation pipe facilitates the installation and maintenance of the spray structure. The rotatable connecting pipe 312 allows the spray ball 313 to rotate under the pressure of the second water body when it is sprayed out, thus enabling the second water body to be sprayed more evenly into the first pipe section 21. This also allows the second water body to have more sufficient contact with the steam, reducing steam discharge and minimizing heat waste.

[0035] It should be noted that a bearing is provided between the connecting pipe 312 and the mounting pipe 314, or an annular groove is provided inside the mounting pipe 314, and an annular plate is provided on the connecting pipe 312, with the annular plate rotatably disposed in the annular groove.

[0036] The exhaust pipe 20 also includes a support pipe, which is installed on the first pipe section 21. The support pipe is located on the outer periphery of the mounting port 211. A first annular support plate is provided on the outer periphery of the end of the support pipe away from the first pipe section 21, and a second annular support plate is provided on the outer periphery of the end of the mounting pipe away from the spray ball 313. The second annular support plate is placed on the first annular support plate. The mounting pipe 314 passes through the support pipe.

[0037] The steam recovery device also includes clamps, which are disposed on the outer periphery of the first and second annular support plates to fix the first and second annular support plates, thereby ensuring that the relative positions of the fixed support pipe and the installation pipe remain unchanged. Of course, in other embodiments, the first and second annular support plates can also be fixed by bolts.

[0038] like Figure 6 and Figure 7 As shown, in this embodiment, the second outlet 311 includes a strip-shaped through hole on the outer surface of the spray ball 313. The strip-shaped through hole allows the spray ball 313 to rotate under the pressure of the second water body when it is sprayed out, thereby driving the connecting pipe 312 to rotate.

[0039] It should be noted that the length of the strip-shaped through-hole extends along the axial direction of the connecting pipe 312. The two sidewalls along the length of the strip-shaped through-hole are spaced apart along the axial direction of the connecting pipe 312. The plane of symmetry of the two sidewalls along the length of the strip-shaped through-hole is a preset plane of symmetry. The preset plane of symmetry does not pass through the center of the spray ball 313. That is, the reaction force when the second water body is sprayed out of the strip-shaped through-hole does not act on the vertical axis of the spray ball 313, which makes it easier for the spray ball 313 to rotate. Of course, a spiral guide channel can also be provided inside the spray ball 313 to make it easier for the spray ball 313 to rotate.

[0040] like Figure 2 and 3 As shown, in this embodiment, there are multiple spray heads 31 and multiple first water supply pipes 41. The water supply structure 40 also includes a second water supply pipe 42, which is connected to multiple first water supply pipes 41. The steam recovery device also includes a water supply valve 50, which is disposed on the second water supply pipe 42 and has a first open state and a first closed state. Multiple spray heads 31 are included, which allows more second water to be supplied into the first pipe section 21, increasing the contact area between the second water and steam, thereby increasing the conversion rate of steam to third water and further reducing the waste of steam heat. When the water supply valve 50 is in the first open state, the second water can flow into multiple first water supply pipes 41 through the second water supply pipe 42. When the water supply valve 50 is in the first closed state, the water supply valve 50 can block the flow of the second water.

[0041] like Figure 2 and Figure 3 As shown, in this embodiment, the steam recovery device further includes a temperature measuring element 60 and a controller. The controller is connected to both the temperature measuring element 60 and the water supply valve 50. The temperature measuring element 60 is disposed within the first pipe section 21. When the measured value of the temperature measuring element 60 is greater than or equal to a preset temperature value, the controller controls the water supply valve 50 to switch from a first closed state to a first open state. The temperature measuring element 60 can measure the temperature within the first pipe section 21, allowing the controller to control the operation of the water supply valve 50 based on the measured value of the temperature measuring element 60.

[0042] Temperature measuring element 60 is a temperature sensor.

[0043] like Figure 3 As shown, in this embodiment, the temperature measuring element 60 is disposed between the spray structure 30 and the outlet end of the first pipe section 21. This arrangement allows the controller to more accurately control the operation of the water supply valve 50 based on the measured value of the temperature measuring element 60.

[0044] like Figure 1 As shown, in this embodiment, the storage tank 10 has a third outlet 13 at its bottom. The steam recovery device also includes a water outlet pipe 70 and a discharge valve 80 installed on the water outlet pipe 70. The water outlet pipe 70 is connected to the third outlet 13. The controller is connected to the discharge valve 80, which has a second open state and a second closed state. The controller controls the discharge valve 80 to switch between the second closed state and the second open state. The third outlet 13 allows scale in the storage tank 10 to be discharged outside the storage tank 10, i.e., discharged to the water outlet pipe 70. The discharge valve 80 facilitates the controller in controlling whether scale in the storage tank 10 is discharged. After the scale is discharged through the water outlet pipe 70, it can prevent the scale from flowing into the boiler with the fourth water body, thereby preventing blockage inside the boiler.

[0045] It should be noted that the controller controls the discharge valve 80 to switch from the second off state to the second open state at a first preset time interval, and maintains it in the second open state for a second preset time interval. After the discharge valve 80 maintains its position in the second open state for the second preset time interval, the controller controls the discharge valve 80 to switch to the second off state.

[0046] like Figure 3 As shown, in this embodiment, multiple spray heads 31 are spaced apart along the axial direction of the first pipe section 21. This makes the arrangement of the multiple spray heads 31 more reasonable, which can increase the contact area between the second water body and steam, increase the conversion rate of steam to the third water body, and reduce the waste of steam heat.

[0047] The interval between any two adjacent spray heads 31 is H1, and the distance between the spray head 31 closest to the temperature measuring element 60 and the temperature measuring element 60 is H2. The ratio of H1 to H2 satisfies: 0.3≤H1 / H2≤0.6, which can be 0.3, 0.4, 0.5 or 0.6. In this embodiment, the ratio of H1 to H2 is 0.5.

[0048] like Figure 1 and Figure 2 As shown, in this embodiment, the exhaust pipe 20 further includes a second pipe section 22 and a third pipe section 23. The second pipe section 22 is disposed between the first outlet 12 and the inlet end of the first pipe section 21, the inlet end of the third pipe section 23 is connected to the outlet end of the first pipe section 21, and the outlet end of the third pipe section 23 is connected to the outside of the steam recovery device. The second pipe section 22 is provided to facilitate the flow of steam in the storage tank 10 into the first pipe section 21. The third pipe section 23 is provided to facilitate the discharge of steam that has not been converted into a third water body.

[0049] It should be noted that the second pipe section 22 extends downwards, and the third pipe section 23 extends upwards.

[0050] The exhaust pipe 20 also includes a fourth pipe section, which is connected between the first outlet section 12 and the second pipe section 22.

[0051] In the description of this utility model, it should be understood that "multiple" means two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0052] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 80 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0053] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steam recovery apparatus, characterized by, include: Storage tank (10), wherein an inlet (11) and a first outlet (12) are provided at intervals on the storage tank (10); The exhaust pipe (20) includes a first pipe section (21), the inlet end of the first pipe section (21) is connected to the first outlet section (12), the first pipe section (21) is inclined, and the outlet end of the first pipe section (21) is higher than the inlet end of the first pipe section (21). A spray structure (30) includes a spray head (31), which is disposed in the first pipe section (21), and each spray head (31) is provided with a second outlet (311); The water supply structure (40) includes a first water supply pipe (41) which is connected to the spray head (31).

2. The vapor recovery apparatus of claim 1, wherein, An installation port (211) is provided on the first pipe section (21), and the spray head (31) is provided at the installation port (211). The spray head (31) includes a connecting pipe (312) and a spray ball (313). The first end of the connecting pipe (312) is connected to the first water supply pipe (41), and the spray ball (313) is provided at the second end of the connecting pipe (312). The spray ball (313) has a hollow structure inside, and the second outlet (311) is provided on the spray ball (313).

3. The vapor recovery apparatus of claim 2, wherein, The spray head (31) also includes an installation tube (314), which is detachably inserted into the installation port (211), and the connecting tube (312) is rotatably disposed in the installation tube (314).

4. The vapor recovery apparatus of claim 2, wherein, The second outlet (311) includes a strip-shaped through hole disposed on the outer surface of the spray ball (313).

5. The vapor recovery apparatus of any one of claims 1 to 4, wherein, There are multiple spray heads (31) and first water supply pipes (41). The water supply structure (40) also includes a second water supply pipe (42), which is connected to multiple first water supply pipes (41). The steam recovery device also includes a water supply valve (50), which is installed on the second water supply pipe (42). The water supply valve (50) has a first open state and a first closed state.

6. The vapor recovery apparatus of claim 5, wherein, The steam recovery device also includes a temperature measuring element (60) and a controller. The controller is connected to both the temperature measuring element (60) and the water supply valve (50). The temperature measuring element (60) is installed in the first pipe section (21). When the measured value of the temperature measuring element (60) is greater than or equal to the preset temperature value, the controller controls the water supply valve (50) to switch from the first closed state to the first open state.

7. The vapor recovery apparatus of claim 6, wherein, The temperature measuring element (60) is disposed between the spray structure (30) and the outlet end of the first pipe section (21).

8. The vapor recovery apparatus of claim 6, wherein, The storage tank (10) is provided with a third outlet (13) at the bottom. The steam recovery device also includes a water outlet pipe (70) and a discharge valve (80) provided on the water outlet pipe (70). The water outlet pipe (70) is connected to the third outlet (13). The controller is connected to the discharge valve (80). The discharge valve (80) has a second open state and a second closed state. The controller controls the discharge valve (80) to switch between the second closed state and the second open state.

9. The vapor recovery apparatus of any one of claims 1 to 4, wherein, Multiple spray heads (31) are spaced apart along the axial direction of the first pipe section (21).

10. The steam recovery apparatus according to any one of claims 1 to 4, characterized in that, The exhaust pipe (20) further includes a second pipe section (22) and / or a third pipe section (23), wherein the second pipe section (22) is disposed between the first outlet (12) and the inlet end of the first pipe section (21), the inlet end of the third pipe section (23) is connected to the outlet end of the first pipe section (21), and the outlet end of the third pipe section (23) is connected to the outside of the steam recovery device.

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