Automatic balance adjusting device of multi-loop heat exchange unit

Abstract

The utility model discloses an automatic balance adjusting device of a multi-loop heat exchange unit, and relates to the technical field of heat exchange units. The device comprises a bottom frame, a plate heat exchanger and a circulating pump, a water return port of the plate heat exchanger is provided with a water return pipe, the water return pipe is provided with a balance mechanism, the balance mechanism comprises a main body, the outer side of a connecting rod is movably sleeved with a valve element, a filter screen is fixedly arranged in the water inlet end of the main body, and the lower surface of the main body is provided with a pollution discharge assembly. The valve element moves upwards through extrusion force of water pressure, the valve element drives the connecting rod to move upwards to open the water through hole, water penetrates through the water through hole and enters the water return pipe, the pressure on the two sides of the body is balanced, and therefore the situation that manual adjustment is inconvenient to operate can be avoided, and the purpose of automatic balance adjustment is achieved. The blocking plate is driven by the fixing rod to move, the top end of the blow-off pipe is opened, water in the main body drives impurities to enter the blow-off pipe, in this way, the situation that the filtering structure is blocked by the impurities can be avoided, and therefore the purpose of facilitating blow-off is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger unit technical field, concretely is a kind of multi-circuit heat exchanger unit automatic balance regulating device. BACKGROUND

[0002] Multi-circuit heat exchanger unit is a kind of efficient heat exchange equipment.It is mainly composed of multiple heat exchange circuits, circulating pumps, valves, controllers and other components.The basic principle is to use the fluid of different temperatures to flow in respective circuits, heat transfer is carried out through heat exchanger, the heat of one fluid is transferred to another fluid, so as to realize the purpose of heating or cooling;

[0003] The return water pipe of existing heat exchanger unit is mostly provided with manual adjusting structure to maintain water pressure balance, the manual adjusting structure is stable, but the pressure is fixed after adjustment, and the pressure needs to be adjusted again when changing, and frequent adjustment wastes a lot of manpower. UTILITY MODEL CONTENTS

[0004] In order to solve the problem of frequent adjustment of manual adjusting structure and waste of manpower, the utility model aims to provide a kind of multi-circuit heat exchanger unit automatic balance regulating device.

[0005] To solve the above technical problems, the utility model discloses the following technical scheme: a kind of automatic balancing adjusting device of multi-loop heat exchange unit, including underframe, plate heat exchanger, circulating pump and control cabinet, the plate heat exchanger is symmetrically distributed and is installed on underframe, the circulating pump is symmetrically distributed and is installed on underframe, the control cabinet is installed at one end of underframe, the water return port of plate heat exchanger is installed with return pipe, balance mechanism is provided on the return pipe, the water supply port of plate heat exchanger is installed with water supply pipe, the medium inlet of plate heat exchanger is installed with inlet pipe, the medium outlet of plate heat exchanger is installed with discharge pipe;The balance mechanism includes main body, and the main body is installed on return pipe, and the inside of main body is fixed with baffle, and the top of main body is fixed with guide rod in, and the bottom end of guide rod is movably inserted with connecting rod, and the outer side of connecting rod is movably sleeved with valve core, and the middle part of baffle is provided with water hole, and the bottom end of valve core is clamped in water hole, and the water inlet end of main body is fixed with filter screen, and the lower surface of main body is provided with blowdown assembly, by the extrusion force of water pressure, make valve core move upwards, and valve core drives connecting rod to move upwards and open water hole, and simultaneously after water hole is opened, water in water inlet end of main body passes through water hole and enters return pipe, increase the water flow of main body, so that the pressure balance of both sides of main body, so it can be automatically regulated and kept balance according to water pressure change, the bottom end of guide rod is provided with square groove, the inside of square groove is slidably provided with square block, the top surface of square block is fixedly installed at the top end of connecting rod, and the stable movement of connecting rod can be kept by the sliding of square block in square groove, the outer side of connecting rod is movably sleeved with pad, the outer side of connecting rod is screwedly sleeved with symmetrically distributed nut, and two the nut is located respectively at the bottom end of valve core and the top surface of pad and is adhered, and valve core can be fixed on connecting rod by pad and nut, the outer side of guide rod is movably sleeved with second spring, and the both ends of second spring are fixedly connected with the inner wall of main body and the top surface of pad respectively, and valve core can be reset by the elastic force of second spring, the bottom end of valve core is fixedly provided with second sealing pad, and the second sealing pad is adhered with the inner wall of water hole, and the sealing property of valve core and water hole can be improved by second sealing pad.

[0006] Preferably, the pollution discharge assembly comprises a pollution discharge pipe, the top end of the pollution discharge pipe is fixed through the bottom end of the main body, the pollution discharge pipe is located on the side of the filter screen away from the partition plate, the inside of the pollution discharge pipe is fixedly provided with a fixing frame, the middle part of the fixing frame is fixedly provided with a fixing rod, the top end of the fixing rod is fixedly provided with a blocking plate, the lower surface of the blocking plate is attached to the inner wall of the main body, the outer side of the fixing rod is movably provided with a first spring, the two ends of the first spring are fixedly connected to the opposite sides of the fixing frame and the fixing disc respectively, the bottom end of the fixing disc is fixedly provided with a push rod, the bottom end of the push rod movably penetrates the pollution discharge pipe, the bottom end of the push rod is fixedly provided with a push disc, the first spring can drive the blocking plate to reset, the push disc drives the push rod to move, the push rod drives the fixing rod to move, the fixing rod drives the blocking plate to move, the top end of the pollution discharge pipe is opened, the water of the main body drives impurities into the pollution discharge pipe, so that the impurities can be conveniently discharged, the upper surface of the blocking plate is fixedly provided with a first sealing gasket, the first sealing gasket is attached to the inner wall of the main body, the first sealing gasket can improve the sealing performance of the blocking plate and the inner wall of the main body, and the bottom end of the pollution discharge pipe is fixedly penetrated by a guide pipe, and the impurities are discharged through the guide pipe.

[0007] Compared with the prior art, the utility model has the advantages that:

[0008] 1, through the extrusion force of water pressure make the valve core move upward, the valve core drives the connecting rod to move upward and opens the water hole, the water in the water inlet end of the main body passes through the water hole and enters the backwater pipe, the water passing capacity of the main body is increased, the pressure on both sides of the main body is balanced, so that the inconvenience of manual adjustment can be avoided, thereby achieving the purpose of automatic adjustment and balance.

[0009] 2, through the push rod drives the fixed rod to move, the same fixed rod drives the blocking plate to move, the top end of the pollution discharge pipe is opened, the water of the main body drives impurities into the pollution discharge pipe, so that the filter structure can be prevented from being blocked by impurities, thereby achieving the purpose of convenient pollution discharge. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0011] Figure 1 It is the structural schematic diagram of the utility model.

[0012] Figure 2 It is the structural section view schematic diagram of the balance mechanism of the utility model.

[0013] Figure 3 It is Figure 2An enlarged view of the structure of the middle A.

[0014] Figure 4 A cross-section view of the guiding rod and the connecting structure thereof according to the present application.

[0015] In the figure: 1, a base frame; 2, a balancing mechanism; 21, a main body; 22, a partition plate; 23, a guiding rod; 24, a connecting rod; 25, a pad; 26, a valve core; 27, a second sealing pad; 28, a water passage; 29, a sewage discharge assembly; 291, a sewage discharge pipe; 292, a guide pipe; 293, a fixing rod; 294, a blocking plate; 295, a fixing frame; 296, a first spring; 297, a fixing disc; 298, a push rod; 299, a push disc; 2910, a first sealing pad; 210, a filter screen; 211, a second spring; 212, a square groove; 213, a square block; 214, a nut; 3, a plate heat exchanger; 4, a circulating pump; 5, a return water pipe; 6, a water supply pipe; 7, an inlet pipe; 8, an outlet pipe; 9, a control cabinet. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] Embodiment: as Figures 1-4The utility model provides a kind of multi-loop heat exchange unit automatic balance regulating device, including chassis 1, plate heat exchanger 3, circulating pump 4 and control cabinet 9, plate heat exchanger 3 is symmetrically distributed and is installed on chassis 1, circulating pump 4 is symmetrically distributed and is installed on chassis 1, control cabinet 9 is installed at one end of chassis 1, the return water pipe 5 is installed in the return water port of plate heat exchanger 3, and the balance mechanism 2 is arranged on the return water pipe 5, the water supply pipe 6 is installed in the water supply port of plate heat exchanger 3, the entering pipe 7 is installed in the medium inlet of plate heat exchanger 3, and the discharge pipe 8 is installed in the medium outlet of plate heat exchanger 3;Balance mechanism 2 includes main body 21, main body 21 is installed on return water pipe 5, and the inside of main body 21 is fixedly provided with baffle 22, and the top of main body 21 is fixedly provided with guide rod 23, and the bottom end of guide rod 23 movably inserts connecting rod 24, and the outside of connecting rod 24 movably sheaths valve core 26, and the middle part of baffle 22 is provided with water hole 28, and the bottom end of valve core 26 is clamped in water hole 28, and the water inlet end of main body 21 is fixedly provided with filter screen 210, and the lower surface of main body 21 is provided with blowdown assembly 29, by the extrusion force of water pressure, make valve core 26 move upwards, and valve core 26 drives connecting rod 24 to move upwards and open water hole 28, and simultaneously after water hole 28 is opened, the water of water inlet end of main body 21 passes through water hole 28 and enters return water pipe 5, increase the water flow of main body 21, make the pressure balance of both sides of main body 21, so as to automatically adjust and keep balance according to water pressure change, the bottom end of guide rod 23 is provided with square groove 212, square groove 212 is slidably provided with square block 213, the top surface of square block 213 is fixedly installed at the top end of connecting rod 24, and the stable movement of connecting rod 24 can be kept by the sliding of square block 213 in square groove 212, the outside of connecting rod 24 movably sheaths pad 25, and the outside of connecting rod 24 is screwedly provided with the nut 214 of symmetric distribution, and two nuts 214 are located at the bottom end of valve core 26 and the top surface of pad 25 respectively, and valve core 26 can be fixed on connecting rod 24 by pad 25 and nut 214, the outside of guide rod 23 movably sheaths second spring 211, and the two ends of second spring 211 are fixedly connected with the inner wall of main body 21 and the top surface of pad 25 respectively, and valve core 26 can be reset by the elastic force of second spring 211, the bottom end of valve core 26 is fixedly provided with second sealing gasket 27, and second sealing gasket 27 is attached with the inner wall of water hole 28, and the sealing property of valve core 26 and water hole 28 can be improved by second sealing gasket 27.

[0018] The blowdown assembly 29 comprises a blowdown pipe 291, the top end of the blowdown pipe 291 is fixed through the bottom end of the main body 21, the blowdown pipe 291 is located on the side of the filter screen 210 away from the partition plate 22, a fixed frame 295 is fixedly arranged in the blowdown pipe 291, a fixed rod 293 is fixedly arranged through the middle part of the fixed frame 295, a blocking plate 294 is fixedly arranged at the top end of the fixed rod 293, the lower surface of the blocking plate 294 is attached to the inner wall of the main body 21, a first spring 296 is movably arranged on the outer side of the fixed rod 293, the two ends of the first spring 296 are fixedly connected to the fixed frame 295 and the side opposite to the fixed disc 297 respectively, a push rod 298 is fixedly arranged at the bottom end of the fixed disc 297, the bottom end of the push rod 298 movably penetrates the blowdown pipe 291, a push disc 299 is fixedly arranged at the bottom end of the push rod 298, the first spring 296 can drive the blocking plate 294 to reset, the push disc 299 drives the push rod 298 to move, the push rod 298 drives the fixed rod 293 to move, and the fixed rod 293 drives the blocking plate 294 to move, so that the top end of the blowdown pipe 291 is opened, and the water in the main body 21 drives impurities into the blowdown pipe 291, so that the impurities can be conveniently discharged, a first sealing gasket 2910 is fixedly arranged on the upper surface of the blocking plate 294, the first sealing gasket 2910 is attached to the inner wall of the main body 21, and the first sealing gasket 2910 can improve the sealing performance of the blocking plate 294 and the inner wall of the main body 21, and a conduit 292 is fixedly arranged at the bottom end of the blowdown pipe 291, and the impurities are discharged through the conduit 292.

[0019] Working principle: when the heat exchange unit works, the medium enters the plate heat exchanger 3 from the inlet pipe 7, and the circulating pump 4 is started at the same time, the circulating pump 4 sends backwater into the backwater pipe 5 through the connecting pipe, the backwater enters the plate heat exchanger 3 to exchange heat, and is discharged from the water supply pipe 6, and at the same time, the medium is discharged from the discharge pipe 8, and the two groups of heat exchange structures can be used for cold and hot heat exchange.

[0020] When the water inlet end of the main body 21 has excessive pressure, the valve core 26 moves upward under the extrusion of water pressure, the valve core 26 drives the connecting rod 24 to move upward to open the water passage hole 28, the block 213 slides in the square groove 212 of the guide rod 23 to keep the connecting rod 24 stable, and the gasket disc 25 compresses the second spring 211 to generate elastic force, after the water passage hole 28 is opened, the water at the water inlet end of the main body 21 passes through the water passage hole 28 to enter the backwater pipe 5, the water passage amount of the main body 21 is increased, and the pressure on both sides of the main body 21 is balanced, so that the balance can be automatically adjusted according to the change of water pressure;

[0021] When it is necessary to discharge the sewage, the filter screen 210 intercepts the impurities in the water, and then the push disc 299 moves upward, the push rod 298 is driven to move by the push disc 299, the fixed rod 293 is driven to move by the push rod 298, the first spring 296 is compressed by the fixed disc 297 at the same time, the first spring 296 generates elastic force, the blocking plate 294 is driven to move by the fixed rod 293, the top end of the sewage pipe 291 is opened, the water of the main body 21 drives the impurities into the sewage pipe 291, and the impurities are discharged from the conduit 292, so that the impurities can be conveniently discharged.

[0022] Obviously, various modifications and changes can be made to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and changes belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and changes.

Claims

1. A multi-circuit heat exchanger unit automatic balancing adjustment device, comprising a chassis (1), a plate heat exchanger (3), and a circulating pump (4), characterized in that: The plate heat exchanger (3) is symmetrically distributed and installed on the chassis (1), the circulating pump (4) is symmetrically distributed and installed on the chassis (1), the backwater pipe (5) is installed on the backwater outlet of the plate heat exchanger (3), the balance mechanism (2) is arranged on the backwater pipe (5), the water supply pipe (6) is installed on the water supply outlet of the plate heat exchanger (3), the entering pipe (7) is installed on the medium inlet of the plate heat exchanger (3), and the discharging pipe (8) is installed on the medium outlet of the plate heat exchanger (3); the balance mechanism (2) comprises a main body (21), the main body (21) is installed on the backwater pipe (5), a partition plate (22) is fixedly arranged in the main body (21), a guide rod (23) is fixedly arranged at the top of the main body (21), a connecting rod (24) is movably arranged at the bottom end of the guide rod (23), a valve core (26) is movably arranged on the outer side of the connecting rod (24), a water passing hole (28) is formed in the middle of the partition plate (22), the bottom end of the valve core (26) is clamped in the water passing hole (28), a filter screen (210) is fixedly arranged in the water inlet end of the main body (21), and a blowdown assembly (29) is arranged on the lower surface of the main body (21).

2. The automatic balancing adjustment device for a multi-circuit heat exchanger unit according to claim 1, characterized in that, The blowdown assembly (29) comprises a blowdown pipe (291), the top end of the blowdown pipe (291) penetrates through the bottom end of the main body (21), the blowdown pipe (291) is located on the side, away from the partition plate (22), of the filter screen (210), a fixing frame (295) is fixedly arranged in the blowdown pipe (291), a fixing rod (293) penetrates through the middle of the fixing frame (295), a blocking plate (294) is fixedly arranged at the top end of the fixing rod (293), the lower surface of the blocking plate (294) is attached to the inner wall of the main body (21), a first spring (296) is movably arranged on the outer side of the fixing rod (293), the two ends of the first spring (296) are fixedly connected to the opposite sides of the fixing frame (295) and a fixing disc (297), a push rod (298) is fixedly arranged at the bottom end of the fixing disc (297), the bottom end of the push rod (298) movably penetrates through the blowdown pipe (291), and a push disc (299) is fixedly arranged at the bottom end of the push rod (298).

3. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 1, characterized in that, A square groove (212) is formed at the bottom end of the guide rod (23), and a square block (213) is slidably arranged in the square groove (212).

4. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 2, characterized in that, A first sealing gasket (2910) is fixedly arranged on the upper surface of the blocking plate (294) and attached to the inner wall of the main body (21).

5. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 1, characterized in that, A pad disc (25) is movably arranged on the outer side of the connecting rod (24), and symmetrically distributed nuts (214) are threadedly arranged on the outer side of the connecting rod (24), and the two nuts (214) are respectively located at the bottom end of the valve core (26) and the upper surface of the pad disc (25) and are attached.

6. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 2, characterized in that, A guide pipe (292) penetrates through the bottom end of the blowdown pipe (291).

7. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 5, wherein An outer side of the guide rod (23) is movably sleeved with a second spring (211), two ends of the second spring (211) are fixedly connected with an inner wall of the main body (21) and an upper surface of the pad (25) respectively.

8. The automatic balancing adjustment device for a multi-pass heat exchanger unit according to claim 1, characterized in that, A bottom end of the valve core (26) is fixedly provided with a second sealing gasket (27), and the second sealing gasket (27) is attached to an inner wall of a water through hole (28).

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