Rubber ball cleaning device for shell-and-tube heat exchanger
By designing a rubber ball cleaning device for shell and tube heat exchangers, the problem of degradation of heat transfer performance caused by dirt and microorganism attachment in the heat exchange tube is solved, and the effect of effective cleaning and improving heat transfer performance is achieved.
Patent Information
- Application Number
- CN202510521166.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-06-13
AI Technical Summary
In existing shell and tube heat exchangers, dirt or microorganisms may occur in the heat exchange tube, resulting in a degradation of heat transfer performance.
A rubber ball cleaning device for shell and tube heat exchangers is designed, including an outer shell and an inner shell. The inner housing is able to move between two positions, when in the first position, the rubber ball enters the inner housing container cavity, and when in the second position, the rubber ball leaves the device through the outer sending port. The device also includes a power device to drive the movement of the inner shell and to accelerate the ejection of the rubber ball by the liquid.
The device can effectively clean the inner wall of the heat exchange tube, and improve the heat transfer performance of the heat exchange tube through the repeated movement of the rubber ball and the liquid acceleration. It also has simple driving and fast output of the rubber ball.
Smart Images
Figure CN120141215A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of rubber ball cleaning devices, and in particular to a rubber ball cleaning device for a shell-and-tube heat exchanger. Background Art
[0002] In the existing shell-and-tube heat exchanger, dirt or microbial attachment may occur in the heat exchange tubes, resulting in a decrease in the heat transfer performance of the heat exchange tubes. Summary of the Invention
[0003] To solve the above technical problems, a first aspect of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger, which includes an outer housing and an inner housing. The outer housing defines an outer housing cavity and has an outer collection port and an outer sending port communicating with the outer housing cavity. The inner housing is disposed in the outer housing cavity and is capable of moving relative to the outer housing. The inner housing includes an inner housing cavity. Wherein, the inner housing has a first inner housing position and a second inner housing position and is capable of moving relative to the outer housing between the first inner housing position and the second inner housing position. When the inner housing is in the first inner housing position, the outer collection port communicates with the inner housing cavity, and the outer sending port is disconnected from the inner housing cavity, so that rubber balls can enter the inner housing cavity from the outer collection port. When the inner housing is in the second inner housing position, the outer sending port communicates with the inner housing cavity, so that the rubber balls in the inner housing cavity leave the rubber ball cleaning device for the shell-and-tube heat exchanger through the outer sending port.
[0004] According to some specific embodiments, when the inner housing is in the second inner housing position, the outer collection port is disconnected from the inner housing cavity.
[0005] According to some specific embodiments, the outer housing has an outer power port, and the inner housing cavity has an acceleration outlet. When the inner housing is in the first inner housing position, the outer power port is disconnected from the acceleration outlet, so that the outer power port is disconnected from the inner housing cavity. When the inner housing is in the second inner housing position, the outer power port communicates with the acceleration outlet, so that liquid flows into the inner housing cavity to accelerate the rubber balls to flow out of the rubber ball cleaning device for the shell-and-tube heat exchanger through the outer sending port.
[0006] According to some specific embodiments, when the inner housing is in the second inner housing position, the acceleration outlet is disposed higher than the outer sending port.
[0007] According to some specific embodiments, the rubber ball cleaning device further includes a balance channel configured to communicate the outer housing cavities on both sides of the inner housing.
[0008] According to some specific embodiments, the rubber ball cleaning device further includes a power device configured to drive the inner housing to move between a first position and a second position of the inner housing.
[0009] A second aspect of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger. The rubber ball cleaning device for a shell-and-tube heat exchanger includes an outer housing, a separator, and a plug. The outer housing defines an outer housing cavity and has an outer collection port and an outer sending port communicating with the outer housing cavity. The separator is disposed in the outer housing cavity and divides the outer housing cavity into an upper cavity and a lower cavity. The upper cavity communicates with the outer collection port, and the lower cavity communicates with the outer sending port. A communication port is provided on the separator. The plug can move relative to the communication port to connect and disconnect the upper cavity and the lower cavity. Wherein, the separator can move relative to the outer housing and reduce the space of the lower cavity to accelerate the movement of the rubber balls in the lower cavity.
[0010] According to some specific embodiments, the plug is arranged to drive the separator to move relative to the outer housing.
[0011] According to some specific embodiments, the plug can move relative to the separator and has a first plug position and a second plug position. When the plug is in the first plug position, the plug closes the communication port, thereby disconnecting the upper cavity and the lower cavity. When the plug is in the second plug position, the plug opens the communication port, thereby connecting the upper cavity and the lower cavity.
[0012] According to some specific embodiments, when the plug is in the first plug position and moves towards the lower cavity, the plug drives the separator to move relative to the outer housing and reduces the space of the lower cavity, so that the rubber balls are accelerated into the outer sending port. When the plug is in the second plug position and moves towards the upper cavity, the plug drives the separator to move relative to the outer housing and expands the space of the lower cavity.
[0013] According to some specific embodiments, the rubber ball cleaning device further includes a power device configured to drive the plug to move.
[0014] According to some specific embodiments, the rubber ball cleaning device further includes a switch device disposed at the outer sending port and configured to connect or disconnect the outer sending port.
[0015] A third aspect of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger. The rubber ball cleaning device for a shell-and-tube heat exchanger includes an outer housing, a partition member, and a plug. The outer housing defines an outer housing cavity and has an outer collection port and an outer sending port communicating with the outer housing cavity. The partition member is disposed in the outer housing cavity and divides the outer housing cavity into an upper cavity and a lower cavity. The upper cavity communicates with the outer collection port, and the lower cavity communicates with the outer sending port. A communication port is provided on the partition member. The plug is movable relative to the outer housing and can open and close the communication port and the outer sending port.
[0016] According to some specific embodiments, the plug has a first linkage position and a second linkage position and moves between the first linkage position and the second linkage position. When the plug is in the first linkage position, the plug opens the communication port, thereby communicating the upper cavity and the lower cavity, and the plug closes the outer sending port. When the plug is in the second linkage position, the plug closes the communication port, thereby disconnecting the upper cavity and the lower cavity, and the plug opens the outer sending port.
[0017] According to some specific embodiments, the plug includes a first sub-plug, a second sub-plug, and a connecting member. The first sub-plug and the second sub-plug are connected by the connecting member. The first sub-plug is configured to open and close the communication port. The second sub-plug is configured to open and close the outer sending port.
[0018] According to some specific embodiments, the rubber ball cleaning device further includes a power device configured to drive the plug to move relative to the outer housing.
[0019] A fourth aspect of the present application provides a heat exchanger assembly. The heat exchanger assembly includes the rubber ball cleaning device for a shell-and-tube heat exchanger according to any one of the above and a shell-and-tube heat exchanger. The shell-and-tube heat exchanger includes a heat exchange tube group, a liquid outlet pipe, and a liquid inlet pipe. Among them, the liquid outlet pipe is communicated with the liquid inlet pipe through the heat exchange tube group. Among them, the liquid outlet pipe is communicated with the outer collection port, and the liquid inlet pipe is communicated with the outer sending port, so that the rubber balls can enter the heat exchange tube group from the outer sending port and then return to the outer collection port.
[0020] The rubber ball cleaning device for a shell-and-tube heat exchanger of the present application can clean the inner wall of the heat exchange tubes. In addition, the rubber ball cleaning device of the present application can continuously receive rubber balls, has a simple drive, and a fast rubber ball sending speed. Description of the Drawings
[0021] The features and advantages of the present application can be better understood by referring to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, like reference numerals denote like components, where:
[0022] Figure 1A is a schematic diagram of the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the inner shell is in the first position of the inner shell;
[0023] Figure 1B is as Figure 1A shown in the schematic diagram of the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the inner shell is in the second position of the inner shell;
[0024] Figures 2A - 2B is a partial cross-sectional view of a heat exchanger assembly including the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application;
[0025] Figure 3A is a schematic diagram of the second embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug is in the first position of the plug;
[0026] Figure 3B is as Figure 3A shown in the schematic diagram of the second embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug is in the second position of the plug;
[0027] Figure 4A is a schematic diagram of the third embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug is in the first linkage position;
[0028] Figure 4B is as Figure 4A shown in the schematic diagram of the third embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug is in the second linkage position. Detailed Embodiments
[0029] The following will describe various specific embodiments of the present application with reference to the accompanying drawings that form a part of this specification. It should be understood that in the following drawings, the same reference numerals are used for the same components.
[0030] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although directional terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used in the present application to describe various exemplary structural parts and elements of the present application, these terms are used only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present application can be arranged in different directions, these directional terms are used only as illustrations and should not be regarded as limitations.
[0031] Figure 1A is a schematic diagram of the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger of the present application, where the inner shell 104 is located at the first position of the inner shell. As Figure 1AAs shown, the rubber ball cleaning device includes an outer housing 102 and an inner housing 104. The outer housing 102 is generally cylindrical and has an axis in the up and down direction. The outer housing 102 defines an outer housing cavity. The outer housing 102 has an outer collection port 112, an outer sending port 114, and an outer power port 116. The outer collection port 112, the outer sending port 114, and the outer power port 116 are all in communication with the outer housing cavity. The outer collection port 112 is generally provided at the upper part of the outer housing 102. The outer sending port 114 and the outer power port 116 are generally provided at the lower part of the outer housing 102 and are generally oppositely arranged. The inner housing 104 is disposed in the outer housing cavity and can move relative to the outer housing cavity along the axis of the outer housing 102. The inner housing 104 is generally cylindrical and defines an inner housing cavity 124. The inner housing 104 has an inner collection port 122 and an inner sending port 123. The inner collection port 122 and the inner sending port 123 are provided on one side of the inner housing 104, and the inner collection port 122 is provided above the inner sending port 123. The inner collection port 122 is used to communicate with the outer collection port 112. The inner sending port 123 is used to communicate with the outer sending port 114. Specifically, the inner housing 104 has a first inner housing position and a second inner housing position and can move between the first inner housing position and the second inner housing position. In this application, the inner housing 104 can move relative to the outer housing 102 in the up and down direction (i.e., the height direction). When the inner housing 104 is in the first inner housing position, the outer collection port 112 is aligned with the inner collection port 122, so that the outer collection port 112 communicates with the inner collection port 122 and the inner housing cavity 124 through the inner collection port 122. The inner sending port 123 is offset from the outer sending port 114 in the up and down direction, so that the outer sending port 114 is disconnected from the inner housing cavity 124. Thus, the rubber ball can enter the inner housing cavity 124 from the outer collection port 112 and remain in the inner housing cavity 124. When the inner housing 104 is in the second inner housing position, the outer collection port 112 is offset from the inner collection port 122 in the up and down direction, so that the outer collection port 112 is disconnected from the inner collection port 122, and the inner sending port 123 is aligned with the outer sending port 114, so that the outer sending port 114 communicates with the inner housing cavity 124 through the inner sending port 123. Thus, the rubber ball in the inner housing cavity 124 can leave the rubber ball cleaning device through the outer sending port 114.
[0032] As Figure 1AAs shown, a part of the inner housing 104 is filled with a filling body 125. The filling body 125 is disposed in the inner housing 104 and is generally located on the right side. The filling body 125 forms a sloped surface in the inner housing 104, and the space in the inner housing 104 that is not filled (i.e., the inner housing cavity 124) is generally formed in a funnel shape. That is, the lateral cross-sectional area of the upper part of the inner housing cavity 124 is larger, and the lateral cross-sectional area of the lower part is smaller. Thus, when the rubber balls enter the inner housing cavity 124, they will deposit below and have a tendency to move toward the outer sending port 114. A channel 127 is provided in the filling body 125 of the inner housing 104. The channel 127 forms an acceleration outlet 128 on the inner housing cavity 124 side and an inner power port 126 on the inner housing 104 side. When the inner housing 104 is in the second inner housing position, the inner power port 126 is in communication with the outer power port 116, so that the inner housing cavity 124 is in communication with the outer power port 116 through the channel 127, and the acceleration outlet 128 is disposed higher than the inner sending port 123. That is, when the inner housing 104 is in the second inner housing position, the acceleration outlet 128 is higher than the outer sending port 114. The power liquid (e.g., water) can enter the inner housing cavity 124 from the outer power port 116 through the channel 127, and impact the rubber balls by means of the power speed and position height difference of the liquid itself, so as to accelerate the rubber balls to leave the rubber ball cleaning device through the outer sending port 114. When the inner housing 104 is in the first inner housing position, the inner power port 126 is disconnected from the outer power port 116, so that the acceleration outlet 128 is disconnected from the outer power port 116.
[0033] As Figure 1A shown, the rubber ball cleaning device further includes a balance channel 132. The balance channel 132 is configured to communicate the outer housing cavities on both sides of the inner housing 104. Specifically, the balance channel 132 is a pipe. The upper end of the pipe is in communication with the outer housing cavity above the inner housing 104. The lower end of the pipe is in communication with the outer housing cavity below the inner housing 104. Thus, the outer housing cavities on both sides of the inner housing 104 can always be in communication, so as to avoid forming a negative pressure state that hinders the movement of the inner housing 104.
[0034] As Figure 1A shown, the rubber ball cleaning device further includes a power device 144. The power device 144 is configured to drive the inner housing 104 to move between the first inner housing position and the second inner housing position. As an embodiment, the power device 144 is a motor.
[0035] Figure 1B Is as Figure 1A shown, a schematic diagram of the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, wherein the inner housing 104 is in the second inner housing position. As Figures 1A - 1BAs shown, when the inner housing 104 is in the first position of the inner housing, the outer collection port 112 communicates with the inner housing cavity 124, the outer sending port 114 is disconnected from the inner housing cavity 124, and the outer power port 116 is disconnected from the inner power port 126. The rubber balls can enter the inner housing cavity 124 from the outer collection port 112 and be stored in the inner housing cavity 124. When the shell-and-tube heat exchanger needs to be cleaned, the power device 144 moves the inner housing 104 from the first position of the inner housing to the second position of the inner housing. When the inner housing 104 is in the second position of the inner housing, the outer collection port 112 is disconnected from the inner housing cavity 124, the outer sending port 114 communicates with the inner housing cavity 124, and the outer power port 116 communicates with the inner power port 126. The liquid with a certain velocity enters the inner housing cavity 124 from the outer power port 116 and impacts the rubber balls located in the inner housing cavity 124. Driven by the liquid, the rubber balls leave the rubber ball cleaning device from the outer sending port 114.
[0036] Fouling or microbial attachment may occur inside the heat exchange tubes in the shell-and-tube heat exchanger, resulting in a decline in the heat transfer performance of the heat exchange tubes.
[0037] The first embodiment of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger, which can release and recover rubber balls in the liquid inside the heat exchange tubes of the shell-and-tube heat exchanger, enabling the rubber balls to repeatedly move inside the heat exchange tubes of the shell-and-tube heat exchanger along with the flow of the liquid, thereby rubbing and scraping the inner walls of the heat exchange tubes, gradually shedding the dirt on the inner surface of the heat exchange tubes, and achieving the technical effect of cleaning the inner walls of the heat exchange tubes. In addition, the rubber ball cleaning device of the present application has simple driving and a fast rubber ball emission speed. Specifically, the rubber ball cleaning device of the present application can drive the movement of the inner housing 104 through the power device 144. The power device 144 only needs to be connected to a power supply and a signal control source, and the installation is fast and convenient. In addition, the liquid flows into the inner housing cavity through the channel 127, thereby accelerating the rubber ball emission speed and helping to improve the cleaning effect of the inner walls of the heat exchange tubes.
[0038] Figures 2A - 2B is a partial cross-sectional view of a heat exchanger assembly including the first embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger of the present application, which is used to exemplarily show the connection relationship between the shell-and-tube heat exchanger and the rubber ball cleaning device. Among them, Figure 2A is a partial cross-sectional view along the length direction of the heat exchanger assembly (i.e., the axial direction of the heat exchange housing 202), Figure 2B is a partial cross-sectional view along the width direction of the heat exchanger assembly (i.e., the radial direction).
[0039] As Figures 2A - 2BAs shown, the heat exchanger assembly includes a shell-and-tube heat exchanger 200 and a rubber ball cleaning device for the shell-and-tube heat exchanger. The shell-and-tube heat exchanger 200 includes a heat exchange housing 202, a heat exchange tube bundle 222, a liquid inlet pipe 212, and a liquid outlet pipe 214. The heat exchange housing 202 is generally a horizontally placed cylinder. The heat exchange housing 202 defines a heat exchange cavity. The heat exchange tube bundle 222 is disposed in the heat exchange cavity and extends generally along the axial direction of the heat exchange housing 202. The liquid inlet pipe 212 communicates with the heat exchange tube bundle 222 so that a heat exchange liquid (e.g., water) can enter the heat exchange tube bundle 222. The liquid outlet pipe 214 communicates with the heat exchange tube bundle 222 so that the heat exchange liquid (e.g., water) in the heat exchange tube bundle 222 can flow out of the heat exchange tube bundle 222. The outer sending port 114 of the rubber ball cleaning device communicates with the liquid inlet pipe 212 so that when the inner housing 104 is in the second inner housing position, the rubber balls in the rubber ball cleaning device can enter the heat exchange tube bundle 222 to clean the inner wall of the heat exchange tube bundle 222. The outer collection port 112 of the rubber ball cleaning device communicates with the liquid outlet pipe 214 so that when the inner housing 104 is in the first inner housing position, the rubber balls can enter the inner housing cavity 124 through the outer collection port 112 after flowing out of the heat exchange tube bundle 222. The outer power port 116 communicates with the liquid inlet pipe 212 so that when the inner housing 104 is in the second inner housing position, the heat exchange liquid in the liquid inlet pipe 212 can enter the inner housing cavity 124 to accelerate the outflow of the rubber balls from the rubber ball cleaning device.
[0040] Figure 3A is a schematic diagram of the second embodiment of the rubber ball cleaning device for the shell-and-tube heat exchanger of the present application, where the plug 332 is in the first plug position. As Figure 3AAs shown, the second embodiment of the rubber ball cleaning device includes an outer shell 102, a partition 302, a plug 332 and a switch device 304. The outer shell 102 defines an outer shell cavity and has an outer collecting port 112 and an outer sending port 114. The outer collecting port 112 and the outer sending port 114 are both connected to the outer shell cavity. The outer collecting port 112 is roughly arranged at the upper part of the outer shell 102. The lower part of the outer shell 102 is roughly funnel-shaped. The outer sending port 114 is roughly arranged at the bottom of the outer shell 102, so that the components (for example, the rubber ball) located at the bottom have a tendency to move toward the outer sending port 114 under the action of gravity. The switch device 304 is arranged at the outer sending port 114. The switch device 304 can be opened or closed, thereby connecting or disconnecting the outer sending port 114. The partition 302 is arranged horizontally in the outer shell cavity and divides the outer shell cavity into an upper cavity 312 and a lower cavity 314. The upper chamber 312 is connected to the outer collecting port 112, and the lower chamber 314 is connected to the outer sending port 114. The shape of the partition 302 and the lower part of the outer shell 102 are roughly matched, and are also funnel-shaped. A connecting port 322 is provided on the partition 302. The connecting port 322 is roughly set at the lowest point of the partition 302. The plug 332 is adapted to the connecting port 322, so that the connecting port 322 can be blocked. The plug 332 can move relative to the partition 302, and has a first plug position and a second plug position relative to the partition 302. In the present application, the plug 332 moves in the up and down direction relative to the partition 302. When the plug 332 is in the first plug position, the plug 332 blocks the connecting port 322, and the plug 332 disconnects the upper chamber 312 and the lower chamber 314. The rubber ball can enter the upper chamber 312 from the outer collecting port 112 and remain in the upper chamber 312. When the plug 332 is located at the second plug position, there is a distance between the plug 332 and the connecting port 322 in the up-down direction, and the plug 332 connects the upper chamber 312 and the lower chamber 314. The rubber ball in the upper chamber 312 enters the lower chamber 314 through the connecting port 322. The partition 302 can move relative to the outer shell 102, thereby changing the volume of the upper chamber 312 and the lower chamber 314. For example, when the partition 302 moves downward relative to the outer shell 102, the volume of the upper chamber 312 becomes larger, and the volume of the lower chamber 314 becomes smaller. When the rubber ball is located in the lower chamber 314, the partition 302 will squeeze the rubber ball in the lower chamber 314, thereby accelerating the rubber ball to leave from the external sending port 114.
[0041] like Figure 3AAs shown, in the embodiment of the present application, the plug 332 is arranged to drive the partition member 302 to move relative to the outer housing 102. Specifically, the partition member 302 is provided with a first guide rod 341 and a second guide rod 342. The first guide rod 341 and the second guide rod 342 are arranged on both sides of the communication port 322 and are arranged in the up and down direction to guide the plug 332 to move in the up and down direction. The plug 332 is arranged above the partition member 302, and the size of the plug 332 is slightly larger than the size of the communication port 322. Two through holes are provided on the plug 332 for accommodating the first guide rod 341 and the second guide rod 342 respectively. Thus, the plug 332 can move relative to the partition member 302 in the up and down direction. When the plug 332 is located at the first plug position and moves towards the lower cavity 314, the plug 332 will abut against the upper surface of the partition member 302, thereby driving the partition member 302 to move downward, thereby reducing the space of the lower cavity 314, thereby accelerating the entry of the rubber balls into the outer sending port 114. In addition, the tops of the first guide rod 341 and the second guide rod 342 have enlarged portions to prevent the plug 332 from coming off when moving upward relative to the partition member 302. When the plug 332 is located at the second plug position and moves towards the upper cavity 312, the plug 332 abuts against the enlarged portions of the first guide rod 341 and the second guide rod 342, thereby applying an upward force to the partition member 302 to expand the space of the lower cavity 314.
[0042] As Figure 3A shown, the rubber ball cleaning device further includes a power device 144. The power device 144 is configured to drive the plug 332 to move. As an embodiment, the power device 144 is a motor.
[0043] It should be noted that although the plug 332 driving the partition member 302 to move relative to the outer housing 102 is shown in the present application, in other embodiments, the plug 332 and the partition member 302 can also be driven by two different power devices, which is also within the protection scope of the present application.
[0044] Figure 3B is as Figure 3A shown, which is a schematic diagram of the second embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug 332 is located at the second plug position. As Figures 3A - 3BAs shown, regardless of whether the plug 332 is in the first plug position or the second plug position, the outer collection port 112 is always in communication with the upper cavity 312. The rubber balls can enter the upper cavity 312 from the outer collection port 112. When the plug 332 is in the first plug position, the plug 332 blocks the communication port 322, and the plug 332 disconnects the upper cavity 312 from the lower cavity 314. The rubber balls can enter the upper cavity 312 from the outer collection port 112 and remain in the upper cavity 312. At this time, the switch device 304 is in the closed state. When the shell-and-tube heat exchanger needs to be cleaned, the power device 144 will drive the plug 332 to move from the first plug position to the second plug position. When the plug 332 is in the second plug position, the upper cavity 312 is in communication with the lower cavity 314. The rubber balls in the upper cavity 312 enter the lower cavity 314 through the communication port 322. The plug 332 is set to stay in the second plug position for a predetermined time (for example, 1-2 minutes). Subsequently, the plug 332 moves from the second plug position to the first plug position and abuts against the partition member 302, thereby driving the partition member 302 to move downward. The downward-moving partition member 302 squeezes the rubber balls in the lower cavity 314. At this time, the switch device 304 is adjusted to the open state. The squeezed rubber balls quickly pass through the outer sending port 114 and leave the rubber ball cleaning device.
[0045] It should be noted that although the switch device 304 is shown to be in the closed state when the plug 332 is in the first plug position in the present application, in other embodiments, the switch device 304 being in the open state when the plug 332 is in the first plug position is also within the protection scope of the present application.
[0046] It should be noted that although the rubber ball cleaning device is shown to be set as follows in the present application: when the shell-and-tube heat exchanger needs to be cleaned, the power device 144 will drive the plug 332 to move from the first plug position to the second plug position and make the plug 332 stay in the second plug position for a predetermined time, in other embodiments, the rubber ball cleaning device can also be set as follows: when the cleaning preset condition is met, the power device 144 will drive the plug 332 to move from the first plug position to the second plug position. Among them, the cleaning preset condition includes that the number of rubber balls in the upper cavity 312 reaches a predetermined quantity or the opening interval time of the switch device 304 reaches a predetermined interval. And when the shell-and-tube heat exchanger needs to be cleaned, the switch device 304 is adjusted to the open state.
[0047] The second embodiment of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger, thereby facilitating the cleaning of the inner wall of the heat exchange tube. In addition, the rubber ball cleaning device of the present application can continuously receive rubber balls, and the rubber ball emission speed is fast. Specifically, the outer collection port 112 of the rubber ball cleaning device of the present application is always in an open state, so it can continuously receive rubber balls and store them in the rubber ball cleaning device. In addition, the partition 302 squeezes the lower cavity 314, thereby being able to accelerate the speed of the rubber balls leaving the outer sending port 114 to increase the rubber ball emission speed, which helps to improve the cleaning effect of the inner wall of the heat exchange tube.
[0048] The present application also provides a heat exchanger assembly, which includes a shell-and-tube heat exchanger 200 and a second embodiment of the rubber ball cleaning device for the shell-and-tube heat exchanger. The connection manner of the second embodiment of the rubber ball cleaning device to the shell-and-tube heat exchanger 200 is similar to that of the first embodiment of the rubber ball cleaning device to the shell-and-tube heat exchanger 200, and will not be elaborated here.
[0049] Figure 4A is a schematic diagram of the third embodiment of the rubber ball cleaning device for the shell-and-tube heat exchanger of the present application, where the plug 332 is located at the first linkage position. As Figure 4AAs shown, the third embodiment of the rubber ball cleaning device includes a housing 102, a partition member 302, and a plug 332. The housing 102 defines a housing cavity and has an outer collection port 112 and an outer sending port 114. Both the outer collection port 112 and the outer sending port 114 communicate with the housing cavity. The outer collection port 112 is generally disposed at the upper part of the housing 102. The lower part of the housing 102 is generally funnel-shaped. The outer sending port 114 is generally disposed at the bottom of the housing 102, so that the components located at the bottom (e.g., rubber balls) tend to move toward the outer sending port 114. The partition member 302 is horizontally disposed in the housing cavity and divides the housing cavity into an upper cavity 312 and a lower cavity 314. The upper cavity 312 communicates with the outer collection port 112, and the lower cavity 314 communicates with the outer sending port 114. A communication port 322 is provided on the partition member 302. The communication port 322 is generally disposed at the lowest position of the partition member 302. The plug 332 can move relative to the housing 102 and open and close the communication port 322 and open and close the outer sending port 114. Specifically, the plug 332 has a first linkage position and a second linkage position relative to the partition member 302. In the present application, the plug 332 moves in the vertical direction relative to the partition member 302. When the plug 332 is located at the first linkage position, the plug 332 closes the communication port 322 and opens the outer sending port 114. Rubber balls can enter the upper cavity 312 from the outer collection port 112 and remain in the upper cavity 312. When the plug 332 is located at the second linkage position, the plug 332 opens the communication port 322 and closes the outer sending port 114. The upper cavity 312 and the lower cavity 314 communicate, and the rubber balls in the upper cavity 312 enter the lower cavity 314 through the communication port 322.
[0050] As Figure 4A shown, in the embodiment of the present application, the plug 332 includes a first sub-plug 402, a second sub-plug 404, and a connecting member 406. The connecting member 406 is generally a rod. The first sub-plug 402 and the second sub-plug 404 are generally disposed at opposite ends of the connecting member 406. The first sub-plug 402 is configured to open and close the communication port 322. The second sub-plug 404 is configured to open and close the outer sending port 114. The first sub-plug 402 is adapted to the communication port 322 so as to be able to block the communication port 322. The second sub-plug 404 is adapted to the outer sending port 114 so as to be able to block the outer sending port 114.
[0051] As Figure 4A shown, the rubber ball cleaning device further includes a power device 144. The power device 144 is configured to drive the plug 332 to move. As an embodiment, the power device 144 is a motor.
[0052] Figure 4B is as Figure 4ASchematic diagram of the third embodiment of the rubber ball cleaning device for a shell-and-tube heat exchanger according to the present application, where the plug 332 is located at the second linkage position. As Figures 4A - 4B As shown, regardless of whether the plug 332 is located at the first linkage position or the second linkage position, the outer collection port 112 is always in communication with the upper cavity 312. The rubber balls can enter the upper cavity 312 from the outer collection port 112. When the plug 332 is located at the first linkage position, the first sub-plug 402 blocks the communication port 322, and the first sub-plug 402 disconnects the upper cavity 312 and the lower cavity 314. The rubber balls can enter the upper cavity 312 from the outer collection port 112 and remain in the upper cavity 312. At this time, the second sub-plug 404 opens the outer sending port 114. The outer sending port 114 is in an open state. When the cleaning preset condition is met, the power device 144 will drive the plug 332 to move from the first linkage position to the second linkage position. Among them, the cleaning preset condition includes that the number of rubber balls in the upper cavity 312 reaches a predetermined quantity or the opening interval time of the switching device 304 reaches a predetermined interval. When the plug 332 is located at the second linkage position, the outer sending port 114 is closed, and the upper cavity 312 and the lower cavity 314 are in communication. The rubber balls in the upper cavity 312 enter the lower cavity 314 through the communication port 322 and are accommodated in the lower cavity 314. When it is necessary to clean the shell-and-tube heat exchanger, the power device 144 will drive the plug 332 to move from the second linkage position of the plug 332 to the first linkage position, the outer sending port 114 is opened, and the rubber balls in the lower cavity 314 can leave the rubber ball cleaning device.
[0053] The third embodiment of the present application provides a rubber ball cleaning device for a shell-and-tube heat exchanger, so as to facilitate cleaning the inner wall of the heat exchange tube. In addition, the rubber ball cleaning device of the present application is simple to drive and can continuously receive rubber balls. Specifically, the rubber ball cleaning device of the present application can drive the movement of the plug 332 through the power device 144. The power device 144 only needs to be connected to a power supply and a signal control source, and the installation is quick and convenient. In addition, the outer collection port 112 of the rubber ball cleaning device of the present application is always in an open state, so it can continuously receive rubber balls and store them in the rubber ball cleaning device.
[0054] The present application also provides a heat exchanger assembly, which includes a shell-and-tube heat exchanger 200 and the third embodiment of the rubber ball cleaning device for the shell-and-tube heat exchanger. The connection manner of the third embodiment of the rubber ball cleaning device to the shell-and-tube heat exchanger 200 is similar to the connection manner of the first embodiment of the rubber ball cleaning device to the shell-and-tube heat exchanger 200, and will not be elaborated here.
[0055] It should be noted that the "rubber balls" in the present application refer to cleaning components that can be accommodated in the heat exchange tubes of the shell-and-tube heat exchanger to clean the heat exchange tubes. The "rubber balls" can be made of rubber or other materials (such as plastics, etc.). It can be spherical or other shapes.
[0056] Although the present disclosure has been described in connection with examples of the embodiments outlined above, various alternatives, modifications, variations, improvements, and / or substantially equivalent alternatives, whether known or now or soon foreseeable to those of at least ordinary skill in the art, may be apparent. Additionally, the technical effects and / or technical problems described in this specification are exemplary rather than restrictive; so the disclosures in this specification may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Accordingly, the examples of the embodiments of the present disclosure as set forth above are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit or scope of the present disclosure. Accordingly, the present disclosure is intended to cover all known or earlier developed alternatives, modifications, variations, improvements, and / or substantially equivalent alternatives.
Claims
1. A rubber ball cleaning device for a shell and tube heat exchanger, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger comprises: An outer shell (102), the outer shell (102) defines an outer shell cavity and has an outer collecting port (112) and an outer sending port (114) in communication with the outer shell cavity; and An inner shell (104), the inner shell (104) being disposed in the outer shell cavity and being movable relative to the outer shell (102), the inner shell (104) comprising an inner shell cavity (124); The inner shell (104) has a first inner shell position and a second inner shell position, and is capable of moving relative to the outer shell (102) between the first inner shell position and the second inner shell position; When the inner shell (104) is located at the first inner shell position, the outer collecting port (112) and the inner shell cavity (124) are connected, and the outer sending port (114) and the inner shell cavity (124) are disconnected, so that the rubber ball can enter the inner shell cavity (124) from the outer collecting port (112); When the inner shell (104) is located at the second inner shell position, the external sending port (114) is connected to the inner shell cavity (124), so that the rubber ball in the inner shell cavity (124) leaves the rubber ball cleaning device for a shell and tube heat exchanger through the external sending port (114).
2. The rubber ball cleaning device for shell and tube heat exchanger according to claim 1 is characterized in that: When the inner shell (104) is located at the inner shell second position, the outer collecting port (112) and the inner shell cavity (124) are disconnected.
3. The rubber ball cleaning device for shell and tube heat exchanger according to claim 1, characterized in that: The outer shell (102) has an external power port (116), and the inner shell cavity (124) has an acceleration outlet (128); When the inner shell (104) is located at the first inner shell position, the external power port (116) and the acceleration outlet (128) are disconnected, thereby disconnecting the external power port (116) and the inner shell cavity (124); When the inner shell (104) is located at the second inner shell position, the external power port (116) and the acceleration outlet (128) are connected, so that liquid flows into the inner shell cavity (124) to accelerate the rubber ball to flow out of the rubber ball cleaning device for a shell and tube heat exchanger through the external power outlet (114).
4. The rubber ball cleaning device for shell and tube heat exchanger according to claim 3 is characterized in that: When the inner shell (104) is located at the inner shell second position, the acceleration outlet (128) is arranged higher than the external emission outlet (114).
5. The rubber ball cleaning device for shell and tube heat exchanger according to claim 1, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger also includes: A balancing channel (132), wherein the balancing channel (132) is configured to communicate with the outer shell cavities on both sides of the inner shell (104).
6. The rubber ball cleaning device for shell and tube heat exchanger according to claim 1, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger also includes: A power device (144) is configured to drive the inner housing (104) to move between the inner housing first position and the inner housing second position.
7. A rubber ball cleaning device for a shell and tube heat exchanger, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger comprises: An outer shell (102), the outer shell (102) defining an outer shell cavity and having an outer collecting port (112) and an outer sending port (114) communicating with the outer shell cavity; a partition (302), the partition (302) being arranged in the outer shell cavity and dividing the outer shell cavity into an upper cavity (312) and a lower cavity (314), the upper cavity (312) being in communication with the outer collecting port (112), and the lower cavity (314) being in communication with the outer sending port (114), and the partition (302) being provided with a communication port (322); and a plug (332), wherein the plug (332) is movable relative to the communication port (322), thereby connecting and disconnecting the upper chamber (312) and the lower chamber (314); The partition (302) is capable of moving relative to the outer shell (102) and reducing the space of the lower chamber (314) to accelerate the movement of the rubber ball in the lower chamber (314).
8. The rubber ball cleaning device for shell and tube heat exchanger according to claim 7, characterized in that: The plug (332) is configured to drive the partition (302) to move relative to the outer shell (102).
9. The rubber ball cleaning device for shell and tube heat exchanger according to claim 7, characterized in that: The plug (332) is movable relative to the partition (302) and has a first plug position and a second plug position; When the plug (332) is located at the first plug position, the plug (332) closes the communication port (322), thereby disconnecting the upper chamber (312) and the lower chamber (314); When the plug (332) is located at the plug second position, the plug (332) opens the communication port (322), thereby connecting the upper chamber (312) and the lower chamber (314).
10. The rubber ball cleaning device for shell and tube heat exchanger according to claim 9, characterized in that: When the plug (332) is located at the first plug position and moves toward the lower chamber (314), the plug (332) drives the partition (302) to move relative to the outer shell (102) and reduces the space of the lower chamber (314), so that the rubber ball is accelerated to enter the outgoing port (114); When the plug (332) is located at the second plug position and moves toward the upper cavity (312), the plug (332) drives the partition (302) to move relative to the outer shell (102) and expands the space of the lower cavity (314).
11. The rubber ball cleaning device for shell and tube heat exchanger according to claim 7, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger also includes: A power device (144), wherein the power device (144) is configured to drive the plug (332) to move.
12. The rubber ball cleaning device for shell and tube heat exchanger according to claim 7, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger also includes: A switch device (304) is disposed at the external transmission port (114) and is configured to connect or disconnect the external transmission port (114).
13. A rubber ball cleaning device for a shell and tube heat exchanger, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger comprises: An outer shell (102), the outer shell (102) defining an outer shell cavity and having an outer collecting port (112) and an outer sending port (114) communicating with the outer shell cavity; a partition (302), the partition (302) being arranged in the outer shell cavity and dividing the outer shell cavity into an upper cavity (312) and a lower cavity (314), the upper cavity (312) being in communication with the outer collecting port (112), and the lower cavity (314) being in communication with the outer sending port (114), and the partition (302) being provided with a communication port (322); and A plug (332) is movable relative to the outer shell (102) and opens and closes the communication port (322) and opens and closes the external transmission port (114).
14. The rubber ball cleaning device for shell and tube heat exchanger according to claim 13, characterized in that: The plug (332) has a first linkage position and a second linkage position, and moves between the first linkage position and the second linkage position; When the plug (332) is located at the first linkage position, the plug (332) opens the communication port (322), thereby connecting the upper chamber (312) and the lower chamber (314), and the plug (332) closes the outgoing transmission port (114); When the plug (332) is located at the second linkage position, the plug (332) closes the communication port (322), thereby disconnecting the upper chamber (312) and the lower chamber (314), and the plug (332) opens the outgoing transmission port (114).
15. The rubber ball cleaning device for shell and tube heat exchanger according to claim 13, characterized in that: The plug (332) comprises a first sub-plug (402), a second sub-plug (404) and a connecting piece (406), wherein the first sub-plug (402) and the second sub-plug (404) are connected via the connecting piece (406); The first sub-plug (402) is configured to open and close the communication port (322); The second sub-plug (404) is configured to open and close the external transmission port (114).
16. The rubber ball cleaning device for shell and tube heat exchanger according to claim 13, characterized in that: The rubber ball cleaning device for the shell and tube heat exchanger also includes: A power device (144) is configured to drive the plug (332) to move relative to the outer shell (102).
17. A heat exchanger assembly, characterized in that: The heat exchanger assembly comprises: The rubber ball cleaning device for a shell and tube heat exchanger according to any one of claims 1 to 16; and A shell and tube heat exchanger (200), the shell and tube heat exchanger (200) comprising a heat exchange tube group (222), a liquid outlet pipe (214) and a liquid inlet pipe (212); Wherein, the liquid outlet pipe (214) is connected to the liquid inlet pipe (212) through the heat exchange tube group; The liquid outlet pipe (214) is in communication with the external collecting port (112), and the liquid inlet pipe (212) is in communication with the external sending port (114), so that the rubber balls can enter the heat exchange tube group (222) from the external sending port (114) and then return to the external collecting port (112).