CN106931824B - Water chilling unit with automatic rubber ball cleaning system - Google Patents
Water chilling unit with automatic rubber ball cleaning system Download PDFInfo
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- CN106931824B CN106931824B CN201710142854.7A CN201710142854A CN106931824B CN 106931824 B CN106931824 B CN 106931824B CN 201710142854 A CN201710142854 A CN 201710142854A CN 106931824 B CN106931824 B CN 106931824B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/12—Fluid-propelled scrapers, bullets, or like solid bodies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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Abstract
A cooling water pipe of the water chilling unit is respectively connected with an input pipeline and an output pipeline of the automatic rubber ball cleaning system; the rubber ball cleaning system comprises: the ball catcher comprises a ball catching container and a rubber ball collecting and filtering piece, wherein the ball catching container is provided with a ball collecting/water inlet end and a ball outlet end, and the first ball-free space is provided with a water outlet/water inlet end; the ball storage device comprises a ball storage container and a rubber ball storage filter element, a water inlet/ball inlet end, a water inlet end and a ball serving/water outlet end are arranged on the ball storage space, and a water outlet end is arranged on the second ball-free space; and the rubber ball pump is arranged between the water outlet end and the water inlet end of the ball storage device. The invention also comprises another water chilling unit with an automatic rubber ball cleaning system. The invention can reduce the cost, shorten the installation time, improve the ball receiving and dispatching speed, prolong the service life of the rubber ball and the rubber ball pump, does not need model selection matching and has high automation degree.
Description
Technical Field
The invention relates to the field of cleaning of shell-and-tube heat exchange equipment, in particular to a water chilling unit with an automatic rubber ball cleaning system.
Background
The water chilling unit is a major energy-consuming consumer of the air conditioning system, and the cooling/heating efficiency of the water chilling unit is the most concerned by users. Especially, the condenser and the absorber which are used as main heat exchange equipment, the cooling/heating efficiency and the operation energy consumption of the air conditioner main machine are directly influenced by the quality of the heat exchange effect, and because the circulating cooling water of the condenser and the hot water in the absorber are easy to form dirt and mucosa on the inner wall of the heat exchange tube, the heat exchange effect is deteriorated, the cooling/heating efficiency of the system is reduced, and the operation energy consumption is increased.
The traditional rubber ball cleaning system is independently arranged, needs to be matched with a water chilling unit in a model selection mode, needs to be connected with a pipeline, increases the floor area, and is difficult to mutually coordinate with a control system. The prior art that the rubber ball cleaning system is matched with a water chilling unit for use has also appeared, but the following defects exist: (1) The rubber ball pump has at least two, namely a pump body for serving balls and a pump body for collecting balls, so that the cost is increased, and the number of pipelines is also increased; (2) the service and receiving time is long and the speed is slow; (3) The working condition of the automatic rubber ball cleaning system cannot be determined along with the working condition of the water chilling unit, and the centralized control is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the water chilling unit with the automatic rubber ball cleaning system, which is cost-saving, simple to install, long in service life, easy to coordinate and match and high in ball serving and receiving speeds.
The technical scheme of the invention is as follows:
according to the water chilling unit with the automatic rubber ball cleaning system, the cooling water pipe of the water chilling unit is respectively connected with the input pipeline and the output pipeline of the automatic rubber ball cleaning system; the rubber ball cleaning system comprises:
the ball catching device comprises a ball catching container and a rubber ball collecting and filtering piece for dividing the ball catching container into a ball catching space and a first ball-free space, wherein the ball catching container is provided with a ball receiving/water inlet end and a ball outlet end, the first ball-free space is provided with a water outlet/water inlet end, and the ball receiving/water inlet end is connected with the output end of a cooling water pipe of the water chilling unit through a pipeline;
the ball storage device comprises a ball storage container and a rubber ball storage and filtration part which divides the ball storage container into a ball storage space and a second ball-free space, the ball storage space is provided with a water inlet/ball inlet end, a water inlet end and a ball serving/water outlet end, and the second ball-free space is provided with a water outlet end; the ball outlet end of the ball catching container is connected with the water inlet/ball inlet end pipeline of the ball storage device; the ball serving/water outlet end is connected with the input end pipeline of a cooling water pipe of the water chilling unit;
the glue ball pump is arranged between the water outlet end and the water inlet end of the ball storage device, the water outlet end of the ball storage device is connected with the first port of the first electric switching valve, the second port of the first electric switching valve is connected with the water outlet/water inlet end pipeline of the ball catcher, the public port pipeline of the first electric switching valve is connected with one end of the glue ball pump, and the public port is communicated with the first port or the second port through the switching of the valve; the other end pipeline of the rubber ball pump is connected with the public port of the second electric switching valve, and the first port of the second electric switching valve is connected with the water inlet end of the ball storage device.
Further, a second port pipeline of the second electric switching valve is connected with the input end of a cooling water pipe of the water chilling unit; or the second port pipeline of the second electric switching valve is connected with the water outlet/inlet end of the ball catcher.
Further, the first electric changeover valve and the second electric changeover valve are electric three-way valves.
Furthermore, a first valve is arranged on a pipeline between the second port of the first electric switching valve and the water outlet/water inlet end of the ball catcher; a second valve and a third valve are arranged on a pipeline between the ball outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit; and the second port of the second electric switching valve is connected with one end of the first valve, and the other end of the first valve is connected with the water outlet/inlet end of the ball catcher.
Furthermore, a first valve is arranged on a pipeline between the second port of the first electric switching valve and the water outlet/water inlet end of the ball catcher; a second valve and a third valve are arranged on a pipeline between the ball outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; and a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit, one end of the fourth valve is connected with the ball serving/water outlet end of the ball storage device, the other end of the fourth valve is connected with one end of the fifth valve, one end of the fifth valve is also connected with the second port of the second electric switching valve, and the other end of the fifth valve is connected with the input end of the cooling water pipe of the water chilling unit.
Further, a flow switch is arranged at the upper end of the first ball-free space and electrically connected with a controller, and the output end of the controller is connected with the first electric switching valve and the second electric switching valve; the ball storage device and the ball catching device are both provided with sight glasses; the first valve, the second valve and the fifth valve are manual valves; the third valve and the fourth valve are electrically operated valves, and the electrically operated valves are connected with the output end of the controller; the glue ball collecting and filtering element in the ball catcher adopts a screen plate with the aperture of 6-10mm.
Further, the rubber ball collecting and filtering piece of the ball catcher comprises a first filter screen part and a first pressurizing part connected with the lower end of the first filter screen part, and meshes are not arranged on the first pressurizing part; the rubber ball storage and filtration piece of the ball storage device comprises a second filter screen part and a second pressurizing part connected with the lower end of the second filter screen part, and mesh holes are not formed in the second pressurizing part.
According to the water chilling unit with the automatic rubber ball cleaning system, the cooling water pipe of the water chilling unit is respectively connected with the input pipeline and the output pipeline of the automatic rubber ball cleaning system; the rubber ball cleaning system comprises:
the ball catching device comprises a ball catching container and a rubber ball collecting and filtering piece which divides the ball catching container into a ball catching space and a first ball-free space, wherein the ball storage space is provided with a water inlet/ball inlet end and a ball outlet/water outlet end, and the water inlet/ball inlet end is connected with the output end of a cooling water pipe of the water chilling unit through a pipeline;
the ball storage device comprises a ball storage container and a rubber ball storage and filtration member which divides the ball storage container into a ball storage space and a second ball-free space, wherein the ball storage space is provided with a water inlet/ball inlet end, a water inlet end and a ball serving/water outlet end, and the second ball-free space is provided with a water outlet end; the ball outlet/water outlet end of the ball catcher is connected with the water inlet/ball inlet end of the ball storage device through a pipeline; the ball serving/water outlet end of the ball storage device is connected with the input end pipeline of the cooling water pipe of the water chilling unit;
the glue ball pump is arranged between the water outlet end and the water inlet end of the ball storage device, the water outlet end of the ball storage device is connected with a first port of the first electric switching valve, a second port of the first electric switching valve is connected with a ball outlet/water outlet end pipeline of the ball trap, a public port pipeline of the first electric switching valve is connected with one end of the glue ball pump, and the public port is communicated with the first port or the second port through switching of the valve; the other end pipeline of the rubber ball pump is connected with a common port of the second electric switching valve, a first port of the second electric switching valve is connected with a water inlet end of the ball storage device, and a second port pipeline of the second electric switching valve is connected with an input end of a cooling water pipe of the water chilling unit.
Furthermore, a filter is arranged between the second port of the first electric switching valve and the ball outlet/water outlet end pipeline of the ball catcher.
Furthermore, a second valve is arranged on a pipeline between the second port of the first electric switching valve and the ball outlet/water outlet end of the ball catcher; a third valve is arranged on a pipeline between the ball outlet/water outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit; one end of the fourth valve is connected with a ball serving/water outlet end of the ball storage device, the other end of the fourth valve is connected with one end of the fifth valve, one end of the fifth valve is also connected with a second port of the second electric switching valve, and the other end of the fifth valve is connected with the input end of a cooling water pipe of the water chilling unit.
The invention has the beneficial effects that:
(1) The number of the rubber ball pumps and the number of the pipelines can be greatly reduced through the pump and the two electric switching valves, so that the cost is reduced, the installation time is shortened, and the operation is simpler and more convenient;
(2) The glue ball pump does not contact the glue ball in the whole process, so that the phenomenon of ball cutting of the impeller of the water pump is avoided, and the service lives of the glue ball and the glue ball pump can be prolonged;
(3) The automatic rubber ball cleaning system is applied to the water chilling unit, the selection matching is not needed, the automatic rubber ball cleaning system can be directly connected through the connecting pipe, and the land is saved;
(4) Centralized control, the working condition of the automatic rubber ball cleaning system is determined along with the working condition of the water chilling unit, and the working conditions can be coordinated with each other;
(5) The first pressurizing part is arranged, and the mesh is not arranged on the first pressurizing part, so that the water pressure in the ball-free space can be reduced, the water pressure at the water inlet end is higher than the water pressure in the ball-free space, and the rubber balls can be quickly withdrawn in a short time; through setting up second pressure boost portion, and do not set up the mesh on the second pressure boost portion, can make water pressure concentrate on the bottom of second pressure boost portion, make the glueballs send fast in the short time, improve work efficiency greatly.
Drawings
FIG. 1 is a schematic structural view showing a ball-out state in example 1 of the present invention;
FIG. 2 is a schematic structural view of a ball collection state in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view showing a ball-serving state in embodiment 2 of the present invention;
FIG. 4 is a schematic structural view of a ball collection state in embodiment 2 of the present invention;
FIG. 5 is a schematic structural view showing a ball-out state in embodiment 3 of the present invention;
FIG. 6 is a schematic structural view of a ball collecting state in embodiment 3 of the present invention;
FIG. 7 is a schematic view showing the structure of a ball trap in accordance with example 1 of the present invention;
fig. 8 is a schematic structural view of a ball storage device according to embodiment 1 of the present invention.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Example 1
As shown in figures 1 and 2, a water chilling unit with an automatic rubber ball cleaning system is provided, and a cooling water pipe of the water chilling unit is respectively connected with an input pipeline and an output pipeline of the automatic rubber ball cleaning system. The cooling water set of this embodiment is mainly to condenser and absorber, because condenser and absorber mainly with cooling tower tube coupling, be convenient for install the clean system of rubber ball between them, can the direct mount, need not the repacking or lectotype cooperation, and the interior impurity of condenser and absorber heat exchange tube is more, difficult washing because this embodiment preference washs condenser and absorber. The heat exchange pipes between the condenser and the absorber are communicated, and the cooling water pipes of the condenser and the absorber are respectively connected with the input pipeline and the output pipeline of the automatic rubber ball cleaning system.
The automatic rubber ball cleaning system comprises a ball catcher 1, a ball storage device 2 and a rubber ball pump P.
The ball catcher 1 comprises a ball catching container and a rubber ball collecting and filtering piece which divides the ball catching container into a ball catching space and a first ball-free space, wherein the ball catching container is provided with a ball receiving/water inlet end G and a ball outlet end B, the first ball-free space is provided with a water outlet/water inlet end A, and the ball receiving/water inlet end G is connected with the output end of a cooling water pipe of the condenser through a pipeline. The ball collecting/water inlet end G mentioned in the embodiment means that the port can be used for ball inlet, water inlet or both ball inlet and water inlet; the water outlet/inlet end a means that the port can be used for both water outlet and water inlet.
As shown in fig. 7: the filter is collected to ball catcher 1's glueballs includes first filter screen portion 11 and the first pressure boost portion 12 of being connected with first filter screen portion 11 lower extreme, first pressure boost portion 12 is last not to set up the mesh, first filter screen portion 11 adopts the otter board to make promptly, first pressure boost portion 12 adopts the steel sheet to make, so first pressure boost portion 12 uses the steel sheet rather than the otter board, under the rivers effect, also have ponding in the first pressure boost portion 12, can reduce the water pressure in ball catcher 1's the no ball space 13 like this, and then make the water pressure of receiving the ball/intaking end G be greater than the water pressure in the no ball space 13, make the glueballs withdraw fast in the short time. According to the established standard of the rubber ball cleaning system, the time for recovering all the rubber balls is generally required to be 5s, while the pressurizing part 22 is designed to ensure that the time for recovering all the rubber balls is 2s, so that the ball recovering time is greatly shortened, and the ball recovering speed is improved.
The first pressurizing part 12 and the first filter screen part 11 of the present embodiment are both funnel-shaped, which is easier to collect glue balls, so that all glue balls can be sent out in a short time.
The ball storage device 2 comprises a ball storage container and a rubber ball storage filter element for dividing the ball storage container into a ball storage space and a second ball-free space, wherein the ball storage space is provided with a water inlet end F, a water inlet end E and a ball serving/water outlet end D, and the second ball-free space is provided with a water outlet end C; the ball outlet end B of the ball catching container is connected with the water inlet/ball inlet end F of the ball storage device through a pipeline; the ball-serving/water-outlet end D is connected with the input end pipeline of the cooling water pipe of the absorber. The water inlet/ball inlet end F in the embodiment means that the port can be used for ball inlet, water inlet or both ball inlet and water inlet; the ball serving/water outlet end D means that the port can be used for ball outlet, water outlet or both.
As shown in fig. 8: the glue ball of ball storage device 2 stores and filters piece includes second filter screen portion 21 and the second pressure boost portion 22 of being connected with second filter screen portion 21 lower extreme, do not set up the mesh on the second pressure boost portion 22, second filter screen portion 21 adopts the otter board to make promptly, second pressure boost portion 22 adopts the steel sheet to make, so the second pressure boost portion 22 uses the steel sheet rather than the otter board, under rivers effect, it concentrates on the bottom of second pressure boost portion 22 to form pressure easily, like this, the water pressure in the end E of intaking is greater than the water pressure in the no ball space 23 of ball storage device more, make the glue ball send fast in the short time. According to the established standard of the rubber ball cleaning system, the time for sending out all the rubber balls is generally required to be 5s, while the pressurizing part 22 is designed to enable the time for sending out all the rubber balls to be 2s in the embodiment, so that the ball sending time is greatly shortened, and the ball sending speed is improved.
The glue ball pump P is arranged between the water outlet end C and the water inlet end E of the ball storage device 2, the water outlet end C of the ball storage device 2 is connected with the first port C of the first electric three-way ball valve F6, the second port b of the first electric three-way ball valve F6 is connected with the water outlet/water inlet end A of the ball catching device 1 through a pipeline, the public port a of the first electric three-way ball valve F6 is connected with one end of the glue ball pump P through a pipeline, and the public port a is communicated with the first port C or the second port b through switching of the valve; the other end of the rubber ball pump P is connected with a public port d of a second electric three-way ball valve F7 through a pipeline, a first port E of the second electric three-way ball valve F7 is connected with a water inlet end E of the ball storage device 2, and a second port F of the second electric three-way ball valve F7 is connected with the input end of a cooling water pipe of the absorber through a pipeline.
A first valve F1 is arranged on a pipeline between the second port b of the first electric three-way ball valve F6 and the water outlet/inlet end A of the ball catcher 1; a second valve F2 and a third valve F3 are arranged on a pipeline between the ball outlet end B of the ball catcher 1 and the water inlet/ball inlet end F of the ball storage device 2; a fourth valve F4 and a fifth valve F5 are arranged on a pipeline between the ball serving/water outlet end D of the ball storage device 2 and the input end of the cooling water pipe of the absorber; one end of the fourth valve F4 is connected with the ball serving/water outlet end D of the ball storage device 2, the other end of the fourth valve F4 is connected with one end of the fifth valve F5, one end of the fifth valve F5 is also connected with the second port F of the second electric three-way ball valve F7, and the other end of the fifth valve F5 is connected with the input end of the cooling water pipe of the absorber.
The upper end of the first non-spherical space is provided with a target type flow switch U, the target type flow switch U is electrically connected with a controller in the host K, and the output end of the controller is connected with a first electric three-way ball valve F6 and a second electric three-way ball valve F7; the ball storage device 2 and the ball catching device 1 are both provided with a sight glass S; the first valve F1, the second valve F2 and the fifth valve F5 are all manual ball valves; the third valve F3 and the fourth valve F4 are electric two-way ball valves, and the electric two-way ball valves are connected with the output end of the controller.
Wherein, target formula flow switch U is installed the target piece in the pipeline, and the flow of the cooling water in the pipeline strikes the target piece and makes it bending deformation to drive micro-gap switch output control signal and give the controller, inform the controller to have rivers can start the unit, each electric valve can be opened or close by the controller according to the signal of target formula flow switch U output this moment. In addition, the control system can realize centralized control, determine the working condition of the automatic rubber ball cleaning system along with the working condition of the water chilling unit and can coordinate with each other. This control system can judge whether the cooling water of cooling water set is in the biggest or great work flow state through target formula flow switch U promptly, if yes, then directly carry out cleaning work, if not then increase the flow through controller control cooling water set host computer or cooling water set cooling water pump, make its flow reach the abluent requirement of rubber ball, prevent to wash because of the condition that the flow is not enough, lead to the rubber ball card to die in the heat exchanger tube and can not retrieve to improve the rubber ball rate of recovery and reach 100%.
The sight glass S can observe the condition of the rubber ball J at any time and determine whether the rubber ball J is replaced or not.
The glue ball collecting filter in the ball catcher 1 adopts a screen plate with the aperture of 6-10mm, the loss of the pressure of cooling water is small, and a circular hole screen plate with the aperture of 8mm is preferably adopted in the embodiment.
In this embodiment, the rubber ball collecting and filtering member of the ball catching device 1 and the rubber ball storing and filtering member of the ball storing device 2 both adopt funnel structures, the ball serving and receiving speeds are high, and the ball receiving rate is 100%.
The working principle of the embodiment is as follows:
(1) The service state is as follows: starting the rubber ball pump P, connecting the first valve F1, the ends a and b of the first electric three-way ball valve F6, the ends d and e of the second electric three-way ball valve F7, the fourth valve F4 and the fifth valve F5, and keeping the other valves in a disconnected state;
cooling water in the condenser sequentially enters the ball storage device 2 through the output end of the cooling water pipe, a ball receiving/water inlet end G (which is used as a water inlet end at this time) of the ball catching device 1, a water outlet/water inlet end A (which is used as a water outlet end at this time) of the ball catching device 1, the first valve F1, the ends b and a of the first electric three-way ball valve F6, the ends d and E of the rubber ball pump P and the second electric three-way ball valve F7, and the water inlet end E of the ball storage device 2; the rubber balls J in the ball storage device 2 are pressed into the input end of the cooling water pipe of the absorber by cooling water through the ball serving/water outlet end D, the fourth valve F4 and the fifth valve F5 of the ball storage device 2 under the suction and pumping action of the rubber ball pump P in sequence, the input end of the cooling water pipe is communicated with the heat exchange pipe of the absorber, and the rubber balls J can rub and remove algae, silt and soft scale in the inner walls of the heat exchange pipe of the condenser and the absorber due to the communication of the heat exchange pipe between the condenser and the absorber.
(2) The ball collecting state: the rubber balls J are driven by cooling water to pass through a heat exchange tube of an absorber or a condenser, and then are blocked by a rubber ball collecting and filtering piece in the ball catcher 1 to wait for ball collection; starting the rubber ball pump P, connecting the second valve F2, the third valve F3, the ends c and a of the first electric three-way ball valve F6, the ends d and F of the second electric three-way ball valve F7 and the fifth valve F5, and disconnecting the other valves; the rubber balls J enter the ball storage device 2 through the second valve F2, the third valve F3 and the water inlet/ball inlet end F (which is used as a ball inlet end) of the ball storage device 2 in sequence, and are blocked by the rubber ball storage filter element of the ball storage device 2; the cooling water enters the ball storage device 2 through the second valve F2, the third valve F3 and the water inlet/ball inlet end F (which is used as a water inlet end) of the ball storage device 2 under the suction and pumping action of the ball pump P, passes through the ball storage filter element of the ball storage device 2, and sequentially enters the cooling water pipe of the absorber through the c end and the a end of the first electric three-way ball valve F6, the ball pump P, the d end and the F end of the second electric three-way ball valve F7 and the fifth valve F5 for recycling. After the ball is recovered, the rubber ball J is completely stopped in the ball storage device 2 to wait for the next service.
Example 2
As shown in fig. 3 and 4, the difference from the embodiment 1 is that the second port F of the second electric three-way ball valve F7 is connected with the water outlet/inlet end a of the ball catcher 1, because the second port b of the first electric three-way ball valve F6 is connected with the water outlet/inlet end a of the ball catcher 1, the two pipelines can form two branches of one pipeline, and the main pipeline of the two branches is provided with the first valve F1, that is, the first valve F1 is arranged at the water outlet/inlet end a of the ball catcher 1. A second valve F2 and a third valve F3 are arranged on a pipeline between the ball outlet end B of the ball catcher 1 and the water inlet/ball inlet end F of the ball storage device 2; a fourth valve F4 and a fifth valve F5 are arranged on a pipeline between the ball serving/water outlet end D of the ball storage device 2 and the input end of the cooling water pipe of the absorber.
The other structure is the same as that of embodiment 1.
The working principle of the embodiment is as follows:
(1) The service state is as follows: starting the rubber ball pump P, connecting the first valve F1, the ends a and b of the first electric three-way ball valve F6, the ends d and e of the second electric three-way ball valve F7, the fourth valve F4 and the fifth valve F5, and keeping the other valves in a disconnected state;
cooling water in the condenser sequentially enters the ball storage device 2 through the output end of the cooling water pipe, a ball receiving/water inlet end G (which is used as a water inlet end at this time) of the ball catching device 1, a water outlet/water inlet end A (which is used as a water outlet end at this time) of the ball catching device 1, the first valve F1, the ends b and a of the first electric three-way ball valve F6, the ends d and E of the rubber ball pump P and the second electric three-way ball valve F7, and the water inlet end E of the ball storage device 2; the rubber balls J in the ball storage device 2 are pressed into the input end of the cooling water pipe of the absorber by cooling water through the ball serving/water outlet end D, the fourth valve F4 and the fifth valve F5 of the ball storage device 2 under the suction and pumping action of the rubber ball pump P in sequence, the input end of the cooling water pipe is communicated with the heat exchange pipe of the absorber, and the rubber balls J can rub and remove algae, silt and soft scale in the inner walls of the heat exchange pipe of the condenser and the absorber due to the communication of the heat exchange pipe between the condenser and the absorber.
(2) A ball collection state: the rubber ball J is driven by cooling water, passes through a heat exchange tube of an absorber or a condenser, is blocked by a rubber ball collecting and filtering piece in the ball catcher 1 and waits for ball collection; starting the rubber ball pump P, connecting the first valve F1, the second valve F2, the third valve F3, the ends c and a of the first electric three-way ball valve F6 and the ends d and F of the second electric three-way ball valve F7, and disconnecting the other valves; the rubber balls J enter the ball storage device 2 through a second valve F2, a third valve F3 and a water inlet/ball inlet end F (serving as a ball inlet end) of the ball storage device 2 in sequence and are blocked by a rubber ball storage filtering piece of the ball storage device 2; the cooling water enters the ball storage device 2 through the second valve F2, the third valve F3 and the water inlet/ball inlet end F (which is used as a water inlet end) of the ball storage device 2 under the suction and pumping action of the ball pump P, passes through the ball storage filter element of the ball storage device 2, sequentially enters the ball catching device 1 through the c end and the a end of the first electric three-way ball valve F6, the ball pump P, the d end and the F end of the second electric three-way ball valve F7, the first valve F1 and the water outlet/water inlet end A (which is used as a water inlet end) of the ball catching device 1, and enters the cooling water pipe output end of the condenser for recycling through the ball receiving/water inlet end G of the ball catching device 1. After the ball is recovered, the rubber ball J is completely stopped in the ball storage device 2 to wait for the next service.
Example 3
As shown in FIGS. 5 and 6, the difference from the embodiment 1 is that the ball collecting/inlet end G of the ball catcher 1 in the embodiment 1 is removed or sealed, and the first valve F1 is removed to change the ball outlet end B of the ball catcher 1 into the ball outlet/outlet end B. The ball outlet/water outlet end B of the ball catcher 1 is connected with the second port B of the first electric three-way ball valve F6 through a second valve F2 and a filter M pipeline in sequence; the ball outlet/water outlet end B of the ball catcher 1 is also connected with the water inlet/ball inlet end F of the ball storage device 2 through a second valve F2 and a third valve F3 in sequence.
Wherein, the filter M is used for preventing the rubber balls from passing through and only can be filled with cooling water.
The other structure is the same as that of embodiment 1.
The working principle of the embodiment is as follows:
(1) The service state is as follows: the rubber ball pump P is started, the second valve F2, the ends a and b of the first electric three-way ball valve F6, the ends d and e of the second electric three-way ball valve F7, the fourth valve F4 and the fifth valve F5 are connected, and other valves are in a disconnected state;
cooling water in the condenser sequentially enters the ball storage device 2 through the output end of the cooling water pipe, a ball receiving/water inlet end G (which is used as a water inlet end at this time) of the ball catching device 1, a ball outlet/water outlet end B (which is used as a water outlet end at this time) of the ball catching device 1, the second valve F2, the filter M, the ends B and a of the first electric three-way ball valve F6, the ends d and E of the rubber ball pump P and the second electric three-way ball valve F7 and the water inlet end E of the ball storage device 2; the rubber ball J in the ball storage device 2 is pressed into the input end of the cooling water pipe of the absorber by cooling water sequentially through the ball serving/water outlet end D, the fourth valve F4 and the fifth valve F5 of the ball storage device 2 under the suction force and the pumping action of the rubber ball pump P, the input end of the cooling water pipe is communicated with the heat exchange pipe of the absorber, and the rubber ball J can rub and remove algae, silt and soft scale in the inner walls of the heat exchange pipes of the condenser and the absorber due to the communication of the heat exchange pipe between the condenser and the absorber.
(2) The ball collecting state: the rubber balls J are driven by cooling water to pass through a heat exchange tube of an absorber or a condenser, and then are blocked by a rubber ball collecting and filtering piece in the ball catcher 1 to wait for ball collection; starting the rubber ball pump P, connecting the second valve F2, the third valve F3, the ends c and a of the first electric three-way ball valve F6, the ends d and F of the second electric three-way ball valve F7 and the fifth valve F5, and disconnecting the other valves; the rubber balls J enter the ball storage device 2 through a ball outlet/water outlet end B (serving as a ball outlet end at this time), a second valve F2, a third valve F3 and a ball inlet/ball inlet end F (serving as a ball inlet end at this time) of the ball catching device 1 in sequence, and are blocked by a rubber ball storage filter element of the ball storage device 2; under the action of the suction force and the pumping action of the rubber ball pump P, cooling water enters the ball storage device 2 through the second valve F2, the third valve F3 and the water inlet/ball inlet end F (which is used as a water inlet end) of the ball storage device 2, passes through the rubber ball storage filter element of the ball storage device 2, and sequentially enters the cooling water pipe of the absorber through the c end and the a end of the first electric three-way ball valve F6, the rubber ball pump P, the d end and the F end of the second electric three-way ball valve F7 and the fifth valve F5 for recycling. After the ball is recovered, the rubber ball J is completely stopped in the ball storage device 2 to wait for the next service.
Compared with embodiment 1, the number of the positive valves in the pipeline can be reduced, and the cost is greatly reduced.
In summary, when the air conditioning equipment normally operates, the rubber balls are introduced into the heat exchange tubes of the absorber or the condenser, the rubber balls with the diameter larger than the inner diameter of the heat exchange tubes by 1-2mm are utilized, and dirt is removed or prevented from accumulating on the inner walls of the heat exchange tubes in a mode of rubbing the inner walls of the heat exchange tubes by means of pressure difference between two ends of the heat exchange tubes, so that the aim of maintaining high-efficiency heat exchange of the heat exchange tubes is fulfilled.
The invention has the following advantages:
(1) The number of the rubber ball pumps and the number of the pipelines can be greatly reduced through the pump and the two electric switching valves, so that the cost is reduced, the installation time is shortened, and the operation is simpler and more convenient;
(2) The glue ball pump does not contact the glue ball in the whole process, so that the phenomenon of ball cutting of the impeller of the water pump is avoided, and the service lives of the glue ball and the glue ball pump can be prolonged;
(3) The automatic rubber ball cleaning system is applied to the water chilling unit, the selection matching is not needed, the automatic rubber ball cleaning system can be directly connected through the connecting pipe, and the land is saved;
(4) Centralized control, the working condition of the automatic rubber ball cleaning system is determined along with the working condition of the water chilling unit, and the working conditions can be coordinated with each other;
(5) The first pressurizing part is arranged, and the mesh holes are not arranged on the first pressurizing part, so that the water pressure in the ball-free space can be reduced, the water pressure at the water inlet end is larger than the water pressure in the ball-free space, and the rubber balls can be quickly withdrawn in a short time; through setting up second pressure boost portion, and do not set up the mesh on the second pressure boost portion, can make water pressure concentrate on the bottom of second pressure boost portion, make the glueballs send fast in the short time, improve work efficiency greatly.
Claims (9)
1. A cooling water pipe of the water chilling unit is respectively connected with an input pipeline and an output pipeline of the automatic rubber ball cleaning system; characterized in that, the clean system of rubber ball includes:
the ball catching device comprises a ball catching container and a rubber ball collecting and filtering piece for dividing the ball catching container into a ball catching space and a first ball-free space, wherein the ball catching container is provided with a ball receiving/water inlet end and a ball outlet end, the first ball-free space is provided with a water outlet/water inlet end, and the ball receiving/water inlet end is connected with the output end of a cooling water pipe of the water chilling unit through a pipeline;
the ball storage device comprises a ball storage container and a rubber ball storage and filtration part which divides the ball storage container into a ball storage space and a second ball-free space, the ball storage space is provided with a water inlet/ball inlet end, a water inlet end and a ball serving/water outlet end, and the second ball-free space is provided with a water outlet end; the ball outlet end of the ball catching container is connected with the water inlet/ball inlet end pipeline of the ball storage device; the ball serving/water outlet end is connected with the input end pipeline of a cooling water pipe of the water chilling unit;
the glue ball pump is arranged between the water outlet end and the water inlet end of the ball storage device, the water outlet end of the ball storage device is connected with the first port of the first electric switching valve, the second port of the first electric switching valve is connected with the water outlet/water inlet end pipeline of the ball catcher, the public port pipeline of the first electric switching valve is connected with one end of the glue ball pump, and the public port is communicated with the first port or the second port through the switching of the valve; the other end of the rubber ball pump is connected with a public port of the second electric switching valve through a pipeline, and a first port of the second electric switching valve is connected with a water inlet end of the ball storage device; a second port pipeline of the second electric switching valve is connected with the input end of a cooling water pipe of the water chilling unit; or the second port pipeline of the second electric switching valve is connected with the water outlet/inlet end of the ball catcher.
2. The chiller unit with automatic rubber ball cleaning system of claim 1, wherein said first and second electrically operated switching valves are electrically operated three-way valves.
3. The water chilling unit with the automatic rubber ball cleaning system according to claim 1, wherein a first valve is arranged on a pipeline between the second port of the first electric switching valve and the water outlet/inlet end of the ball catcher; a second valve and a third valve are arranged on a pipeline between the ball outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit; and a second port of the second electric switching valve is connected with one end of the first valve, and the other end of the first valve is connected with a water outlet/water inlet end of the ball catcher.
4. The water chilling unit with the automatic rubber ball cleaning system according to claim 1, wherein a first valve is arranged on a pipeline between the second port of the first electric switching valve and the water outlet/inlet end of the ball catcher; a second valve and a third valve are arranged on a pipeline between the ball outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; and a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit, one end of the fourth valve is connected with the ball serving/water outlet end of the ball storage device, the other end of the fourth valve is connected with one end of the fifth valve, one end of the fifth valve is also connected with the second port of the second electric switching valve, and the other end of the fifth valve is connected with the input end of the cooling water pipe of the water chilling unit.
5. The water chilling unit with the automatic rubber ball cleaning system according to claim 3 or 4, wherein a flow switch is arranged at the upper end of the first ball-free space, the flow switch is electrically connected with a controller, and the output end of the controller is connected with the first electric switching valve and the second electric switching valve; the ball storage device and the ball catching device are both provided with sight glasses; the first valve, the second valve and the fifth valve are manual valves; the third valve and the fourth valve are electrically operated valves, and the electrically operated valves are connected with the output end of the controller; the glue ball collecting and filtering element in the ball catcher adopts a screen plate with the aperture of 6-10mm.
6. The water chilling unit with the automatic glue ball cleaning system according to any one of claims 1 to 4, wherein the glue ball collecting and filtering element of the ball catcher comprises a first filter screen part and a first pressurizing part connected with the lower end of the first filter screen part, and no mesh is arranged on the first pressurizing part; the rubber ball storage filtering piece of the ball storage device comprises a second filtering net part and a second pressurizing part connected with the lower end of the second filtering net part, and meshes are not arranged on the second pressurizing part.
7. A cooling water pipe of the water chilling unit is respectively connected with an input pipeline and an output pipeline of the automatic rubber ball cleaning system; characterized in that, the clean system of rubber ball includes:
the ball catching device comprises a ball catching container and a rubber ball collecting and filtering piece for dividing the ball catching container into a ball catching space and a first ball-free space, wherein the ball catching container is provided with a ball collecting/water inlet end and a ball discharging/water outlet end, and the ball collecting/water inlet end is connected with a pipeline of an output end of a cooling water pipe of the water chilling unit;
the ball storage device comprises a ball storage container and a rubber ball storage and filtration member which divides the ball storage container into a ball storage space and a second ball-free space, wherein the ball storage space is provided with a water inlet/ball inlet end, a water inlet end and a ball serving/water outlet end, and the second ball-free space is provided with a water outlet end; the ball outlet/water outlet end of the ball catcher is connected with the water inlet/ball inlet end of the ball storage device through a pipeline; the ball serving/water outlet end of the ball storage device is connected with the input end pipeline of the cooling water pipe of the water chilling unit;
the glue ball pump is arranged between the water outlet end and the water inlet end of the ball storage device, the water outlet end of the ball storage device is connected with the first port of the first electric switching valve, the second port of the first electric switching valve is connected with the ball outlet/water outlet end pipeline of the ball catcher, the public port pipeline of the first electric switching valve is connected with one end of the glue ball pump, and the public port is communicated with the first port or the second port through the switching of the valve; the other end pipeline of the rubber ball pump is connected with a public port of the second electric switching valve, a first port of the second electric switching valve is connected with a water inlet end of the ball storage device, and a second port pipeline of the second electric switching valve is connected with an input end of a cooling water pipe of the water chilling unit.
8. The water chilling unit with the automatic rubber ball cleaning system according to claim 7, wherein a filter is disposed between the second port of the first electric switching valve and the ball outlet/water outlet pipeline of the ball catcher.
9. The water chilling unit with the automatic rubber ball cleaning system according to claim 7 or 8, wherein a second valve is arranged on a pipeline between the second port of the first electric switching valve and the ball outlet/water outlet end of the ball catcher; a third valve is arranged on a pipeline between the ball outlet/water outlet end of the ball catcher and the water inlet/ball inlet end of the ball storage device; a fourth valve and a fifth valve are arranged on a pipeline between the ball serving/water outlet end of the ball storage device and the input end of the cooling water pipe of the water chilling unit; one end of the fourth valve is connected with a ball serving/water outlet end of the ball storage device, the other end of the fourth valve is connected with one end of the fifth valve, one end of the fifth valve is further connected with a second port of the second electric switching valve, and the other end of the fifth valve is connected with an input end of a cooling water pipe of the water chilling unit.
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| CN108871045A (en) * | 2018-07-06 | 2018-11-23 | 林燕丽 | A kind of condenser on-line cleaning system |
| CN110763075A (en) * | 2018-07-27 | 2020-02-07 | 广州马顿环保科技有限公司 | Heat exchanger end cover of integrated rubber ball cleaning equipment |
| CN109357564A (en) * | 2018-10-12 | 2019-02-19 | 天津大学 | A kind of on-line cleaning device applied to lithium bromide cooling-water machine group |
| CN110440630A (en) * | 2019-08-27 | 2019-11-12 | 大唐郓城发电有限公司 | A kind of novel ball cleaning apparatus for detecting the glueballs degree of wear and capturing automatically |
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