Flow protection device for cooling-water machine

Abstract

The flow protection device comprises a shell, two connecting pipes are fixedly connected to the two ends of the shell, flange plates are fixedly connected to the ends of the connecting pipes, a main flow channel is horizontally formed in the shell, a flow adjusting assembly is arranged in the middle of the main flow channel, and a flow monitoring assembly is arranged on one side in the main flow channel. The flow adjusting assembly comprises an adjusting block arranged in the middle of the main flow channel, the top face of the adjusting block is fixedly connected with an inserting plate, the top face of the inserting plate is fixedly connected with a top plate, a square opening is formed in the top face of the main flow channel, and a square flaring is formed in the position, above the square opening, of the top face of the shell. The flow adjusting assembly is arranged on the shell in a vertical insertion mode, the air cylinder and the transmission structure are arranged on the top face of the top plate, after the first nut is detached, the sealing shell can be taken down to maintain the position nearby the air cylinder, when the adjusting block needs to be maintained, the adjusting block can be taken out vertically upwards, and maintenance is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chiller equipment, in particular to a flow protection device for a chiller. Background Art

[0002] A water chiller, also known as a chiller, is a cooling water device that can provide constant temperature, constant flow, and constant pressure. Water chillers are divided into air-cooled chillers and water-type chillers. The internal water path of the chiller has strict requirements on the water flow rate. Generally, a flow protection device needs to be set to avoid the flow rate being too fast or too slow. The current flow protection device for chillers is mainly composed of a speed regulating valve and a flow monitor. The flow monitor monitors the real-time flow and controls the opening of the speed regulating valve according to the water flow rate to achieve flow control, so that the flow rate will not be too fast or too slow, which plays a role in flow protection. However, the current flow protection device for chillers has the following defects:

[0003] In the current flow protection device for chillers, the speed regulating structure is arranged in a pipeline or a valve body, which is difficult to remove. During maintenance, the entire device needs to be dismantled and then disassembled, which makes maintenance difficult.

[0004] For this reason, we propose a flow protection device for chillers to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a flow protection device for a chiller to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flow protection device for a chiller, comprising a shell, two connecting pipes are fixedly connected at both ends of the shell, the ends of the connecting pipes are fixedly connected to flanges, a main flow channel is horizontally opened in the shell, a flow regulating component is arranged in the middle of the main flow channel, and a flow monitoring component is arranged on one side of the main flow channel;

[0007] The flow regulating assembly comprises a regulating block arranged in the middle of the main flow channel, the top surface of the regulating block is fixedly connected to the plug plate, the top surface of the plug plate is fixedly connected to the top plate, the top surface of the main flow channel is provided with a square opening, the top surface of the shell is provided with a square flared opening located above the square opening, the square flared opening is connected to the square opening, the plug plate is inserted into the square opening, the top plate is inserted into the square flared opening, the inner side wall of the square opening is fixedly connected to a square sealing ring, and the square sealing ring is interference fit with the plug plate;

[0008] A sealing shell is provided on the top surface of the top plate, and the bottom surface of the sealing shell is an open structure. One side of the top plate is vertically fixed to the vertical plate, and the cylinder is fixedly plugged into the vertical plate. Four sub-flow channels are evenly and horizontally opened on the adjusting block. Two shaft columns are vertically and rotatably connected on the adjusting block, and the two shaft columns pass through the middle parts of the four sub-flow channels. The shaft column is located at the center position of the sub-flow channel and fixed with a spherical block. The spherical block is in sliding contact with the center of the sub-flow channel, and an adjusting flow channel is horizontally opened on the spherical block. The top surface of the sealing shell is fixedly embedded with a plug-in row, and a side port is opened on the bottom surface of the side wall of the sealing shell, and the side port is plugged into the vertical plate.

[0009] Preferably, four first columns are vertically fixed at the four corners of the square expansion, four lower through holes are vertically opened at the four corners of the top plate, four upper through holes are vertically opened at the four corners of the shell, the first column is inserted into the lower through hole and the upper through hole, the top end of the first column is fixed with a first stud, and the first stud is threadedly connected to a first nut.

[0010] Preferably, the two shaft columns penetrate the plug plate and the top plate, the top ends of the two shaft columns are located inside the shell and fixedly connected to the two gears, a slide groove is provided on the top surface of the top plate between the two gears, the slide groove is horizontally slidably connected to the bottom end of the slide plate, two racks are fixedly connected on both sides of the slide plate, the racks are meshed and connected to the gears, and the cylinder output end is located in the shell and fixedly connected to the end of the slide plate.

[0011] Preferably, the flow monitoring assembly comprises a circular plate, the bottom surface of the circular plate is vertically fixed to the rod body, the bottom end of the rod body is fixed to the flow sensor, the top surface of the circular plate is fixed to the panel, the top surface of the panel is fixed to the controller, and the controller is electrically connected to the flow sensor.

[0012] Preferably, a circular opening is opened on the inner top surface of the main channel corresponding to the position of the flow monitoring component, a circular flared opening is opened on the top surface of the shell at the position of the top surface of the circular opening, the circular plate is inserted in the circular opening, the insert plate is inserted in the circular flared opening, the controller is fixedly connected and electrically connected to the cable, the end of the cable is fixedly connected and electrically connected to the terminal, the electrical connection terminal is inserted and electrically connected to the socket strip, a circular sealing ring is fixedly connected to the inner side wall of the circular opening, and the circular sealing ring is interference fit with the circular plate.

[0013] Preferably, a plurality of second columns are evenly and vertically fixed at the circular flared edge, a plurality of mounting holes are vertically opened on the panel corresponding to the positions of the plurality of second columns, the second columns are inserted into the mounting holes, the top end of the second columns is fixed with second studs, and the second studs are threadedly connected with second nuts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The flow regulating component of the utility model is arranged on the shell in a vertical insertion manner, and the cylinder and the transmission structure are arranged on the top surface of the top plate. After the first nut is removed, the sealing shell can be removed for maintenance near the cylinder. When the regulating block needs to be maintained, the regulating block can be taken out vertically upward, which makes maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure in the first and second embodiments of the utility model;

[0017] Figure 2 It is a schematic diagram of the main body cutaway structure in the first and second embodiments of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-section structure of the flow regulating assembly in the first and second embodiments of the utility model;

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure of the structure at center A;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the shell side wall in the second embodiment of the utility model.

[0021] In the figure: 1, housing; 2, flow regulating assembly; 3, flow monitoring assembly; 11, main channel; 12, connecting pipe; 13, flange; 14, square mouth; 15, square sealing ring; 16, square flared mouth; 17, round mouth; 18, round sealing ring; 19, round flared mouth; 110, first column; 111, first stud; 112, first nut; 113, second column; 114, second stud; 115, second nut; 21, regulating block; 22, plug plate; 23 , top plate; 24, sub-channel; 25, shaft column; 26, spherical block; 27, regulating channel; 28, shell; 29, plug-in strip; 210, vertical plate; 211, cylinder; 212, side port; 213, slide groove; 214, slide plate; 215, rack; 216, gear; 217, lower through hole; 218, upper through hole; 31, round plate; 32, rod body; 33, flow sensor; 34, panel; 35, controller; 36, cable; 37, terminal; 38, installation through hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] See also Figure 1-3 The utility model provides a technical solution: a flow protection device for a chiller, comprising a shell 1, two connecting pipes 12 are fixedly connected at both ends of the shell 1, and the ends of the connecting pipes 12 are fixedly connected to flanges 13, and the flanges 13 are used to connect with the water pipes of the chiller, and a main flow channel 11 is horizontally opened in the shell 1, a flow regulating component 2 is arranged in the middle of the main flow channel 11, and a flow monitoring component 3 is arranged on one side of the main flow channel 11;

[0025] The flow regulating assembly 2 includes a regulating block 21 arranged in the middle of the main channel 11, the top surface of the regulating block 21 is fixedly connected to the plug plate 22, the top surface of the plug plate 22 is fixedly connected to the top plate 23, the top surface of the main channel 11 is provided with a square opening 14, the top surface of the shell 1 is provided with a square expansion opening 16 located above the square opening 14, the square expansion opening 16 is connected to the square opening 14, the plug plate 22 is inserted into the square opening 14, the top plate 23 is inserted into the square expansion opening 16, the inner side wall of the square opening 14 is fixedly connected to the square sealing ring 15, the square sealing ring 15 and the plug plate 22 are interference fit, the entire flow regulating assembly 2 is installed in an inserted manner, can be pulled out upward, and is more convenient for later maintenance;

[0026] A sealing shell 28 is provided on the top surface of the top plate 23, and the bottom surface of the sealing shell 28 is an open structure. One side of the top plate 23 is vertically fixed to the vertical plate 210, and the cylinder 211 is fixedly plugged into the vertical plate 210. Four sub-channels 24 are evenly and horizontally opened on the adjusting block 21. Two shaft columns 25 are vertically and rotatably connected on the adjusting block 21. The two shaft columns 25 pass through the middle of the four sub-channels 24. The shaft column 25 is located at the center position of the sub-channel 24 and fixedly connected to the spherical block 26. The spherical block 26 is in sliding contact with the center of the sub-channel 24. An adjusting channel 27 is horizontally opened on the spherical block 26. The top surface of the sealing shell 28 is fixedly embedded with the plug row 29, and the bottom surface of the side wall of the sealing shell 28 is provided with a side port 212, and the side port 212 is plugged into the vertical plate 210. The sealing shell 28 can be removed separately.

[0027] Embodiment 2:

[0028] See also Figure 1-5 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. Four first columns 110 are vertically fixed at the four corners of the square expansion 16, four lower through holes 217 are vertically opened at the four corners of the top plate 23, and four upper through holes 218 are vertically opened at the four corners of the shell 28. The first column 110 is inserted into the lower through hole 217 and the upper through hole 218. The top end of the first column 110 is fixedly connected to the first stud 111, and the first stud 111 is threadedly connected to the first nut 112, and the flow regulating component 2 is fixed by the first nut 112.

[0029] Two shaft columns 25 pass through the plug plate 22 and the top plate 23. The top ends of the two shaft columns 25 are located inside the shell 28 and fixedly connected to two gears 216. A slide groove 213 is provided on the top surface of the top plate 23 between the two gears 216. The slide groove 213 is horizontally slidably connected to the bottom end of the slide plate 214. Two racks 215 are fixedly connected on both sides of the slide plate 214. The racks 215 are meshed and connected to the gears 216. The output end of the cylinder 211 is located in the shell 28 and fixedly connected to the end of the slide plate 214. The cylinder 211 and the power structure thereon are arranged on the top surface of the top plate 23. After the shell 28 is removed, maintenance can be carried out directly. The cylinder 211 pushes the rack 215 to move and drive the gear 216 to rotate, so that the spherical block 26 rotates, thereby changing the exposed position of the regulating channel 27 to achieve opening adjustment to adjust the flow rate.

[0030] The flow monitoring assembly 3 includes a circular plate 31 , the bottom surface of the circular plate 31 is vertically fixed to a rod 32 , the bottom end of the rod 32 is fixed to a flow sensor 33 , the top surface of the circular plate 31 is fixed to a panel 34 , the top surface of the panel 34 is fixed to a controller 35 , and the controller 35 is electrically connected to the flow sensor 33 .

[0031] A circular opening 17 is provided on the inner top surface of the main channel 11 at a position corresponding to the flow monitoring component 3, a circular expansion opening 19 is provided on the top surface of the shell 1 at the position of the top surface of the circular opening 17, a circular plate 31 is inserted into the circular opening 17, an insert plate 34 is inserted into the circular expansion opening 19, a controller 35 is fixedly connected to and electrically connected to a cable 36, an end of the cable 36 is fixedly connected to and electrically connected to a terminal 37, an electrical connection terminal 37 is inserted into and electrically connected to the socket strip 29, a circular sealing ring 18 is fixedly connected to the inner side wall of the circular opening 17, and the circular sealing ring 18 is interference fit with the circular plate 31, a flow sensor 33 detects the flow, and controls the cylinder 211 to change the flow when the threshold is exceeded.

[0032] A plurality of second columns 113 are evenly and vertically fixed at the edge of the circular expansion 19 , a plurality of mounting holes 38 are vertically opened on the panel 34 corresponding to the positions of the plurality of second columns 113 , the second columns 113 are inserted into the mounting holes 38 , the top of the second column 113 is fixedly connected to the second stud 114 , and the second stud 114 is threadedly connected to the second nut 115 .

[0033] Embodiment 3:

[0034] See also Figure 1-5, which is the third embodiment of the utility model. This embodiment is based on the above two embodiments. When the utility model is used, water passes through the sub-flow channel 24, and the flow monitoring component 3 monitors in real time. When the flow is too fast or too slow, the cylinder 211 will be controlled to work to realize the rotation of the spherical block 26, so that the exposed position of the regulating flow channel 27 changes, and the opening is adjusted to adjust the flow, so that the water flow is always within the required range, and the flow protection effect is achieved; the flow regulating component 2 of the utility model is arranged on the shell 1 in a vertical insertion manner, and the cylinder 211 and the transmission structure are arranged on the top surface of the top plate 23. After removing the first nut 112, the shell 28 can be removed to maintain the vicinity of the cylinder 211, and when the regulating block 21 needs to be maintained, the regulating block 21 can be taken out vertically upward, which is more convenient for maintenance.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow protection device for a chiller, comprising a housing (1), two connecting pipes (12) being fixedly connected at both ends of the housing (1), and flanges (13) being fixedly connected at the ends of the connecting pipes (12), characterized in that: A main flow channel (11) is horizontally provided in the shell (1), a flow regulating component (2) is provided in the middle of the main flow channel (11), and a flow monitoring component (3) is provided on one side of the main flow channel (11); The flow regulating assembly (2) comprises a regulating block (21) arranged in the middle of the main flow channel (11); the top surface of the regulating block (21) is fixedly connected to a plug plate (22); the top surface of the plug plate (22) is fixedly connected to a top plate (23); the top surface of the main flow channel (11) is provided with a square opening (14); the top surface of the shell (1) is provided with a square expansion opening (16) located above the square opening (14); the square expansion opening (16) is connected to the square opening (14); the plug plate (22) is inserted into the square opening (14); the top plate (23) is inserted into the square expansion opening (16); the inner side wall of the square opening (14) is fixedly connected to a square sealing ring (15); the square sealing ring (15) is interference fit with the plug plate (22); The top surface of the top plate (23) is provided with a sealing shell (28), the bottom surface of the sealing shell (28) is an open structure, one side of the top plate (23) is vertically fixedly connected to a vertical plate (210), a cylinder (211) is fixedly plugged into the vertical plate (210), four sub-flow channels (24) are evenly and horizontally provided on the adjustment block (21), two shaft columns (25) are vertically rotatably connected on the adjustment block (21), and the two shaft columns (25) penetrate the four sub-flow channels. The shaft column (25) is located in the middle of the sub-channel (24), the shaft column (25) is fixedly connected to a spherical block (26) at the center of the sub-channel (24), the spherical block (26) is in sliding contact with the center of the sub-channel (24), an adjusting channel (27) is horizontally provided on the spherical block (26), the top surface of the enclosure (28) is fixedly connected to the plug row (29), the bottom surface of the side wall of the enclosure (28) is provided with a side opening (212), and the side opening (212) is plugged into the vertical plate (210).

2. A flow protection device for a chiller according to claim 1, characterized in that: Four first columns (110) are vertically fixed at the four corners of the square expansion (16); four lower through holes (217) are vertically opened at the four corners of the top plate (23); four upper through holes (218) are vertically opened at the four corners of the enclosure (28); the first columns (110) are plugged into the lower through holes (217) and the upper through holes (218); the top end of the first columns (110) is fixedly connected to the first stud (111); the first stud (111) is threadedly connected to the first nut (112).

3. A flow protection device for a chiller according to claim 1, characterized in that: The two shaft columns (25) penetrate the plug plate (22) and the top plate (23); the top ends of the two shaft columns (25) are located inside the housing (28) and are fixedly connected to two gears (216); a slide groove (213) is provided on the top surface of the top plate (23) between the two gears (216); the slide groove (213) is horizontally slidably connected to the bottom end of a slide plate (214); two racks (215) are fixedly connected to both sides of the slide plate (214); the racks (215) are meshedly connected to the gears (216); and the output end of the cylinder (211) is located inside the housing (28) and is fixedly connected to the end of the slide plate (214).

4. A flow protection device for a chiller according to claim 1, characterized in that: The flow monitoring assembly (3) comprises a circular plate (31), the bottom surface of the circular plate (31) is vertically fixed to a rod body (32), the bottom end of the rod body (32) is fixed to a flow sensor (33), the top surface of the circular plate (31) is fixed to a panel (34), the top surface of the panel (34) is fixed to a controller (35), and the controller (35) is electrically connected to the flow sensor (33).

5. A flow protection device for a chiller according to claim 4, characterized in that: A circular opening (17) is provided on the inner top surface of the main flow channel (11) at a position corresponding to the flow monitoring component (3); a circular expansion opening (19) is provided on the top surface of the shell (1) at the position of the top surface of the circular opening (17); the circular plate (31) is inserted into the circular opening (17); the insert plate (34) is inserted into the circular expansion opening (19); the controller (35) is fixedly connected to and electrically connected to the flat cable (36); the end of the flat cable (36) is fixedly connected to and electrically connected to the terminal (37); the electrical connection terminal (37) is inserted into and electrically connected to the socket strip (29); a circular sealing ring (18) is fixedly connected to the inner side wall of the circular opening (17); the circular sealing ring (18) is interference fit with the circular plate (31).

6. A flow protection device for a chiller according to claim 5, characterized in that: A plurality of second columns (113) are evenly and vertically fixedly connected at the edge of the circular expansion (19); a plurality of mounting through holes (38) are vertically opened on the panel (34) corresponding to the positions of the plurality of second columns (113); the second columns (113) are plugged into the mounting through holes (38); the top of the second columns (113) is fixedly connected to a second stud (114); and the second stud (114) is threadedly connected to a second nut (115).

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