CN210952448U

CN210952448U - Heat exchanger convenient for adjusting heat exchange temperature

Info

Publication number: CN210952448U
Application number: CN201921918034.3U
Authority: CN
Inventors: 欧高明; 黄永福; 刘艳; 刘晶
Original assignee: Hunan Zhongda Mechanical And Electrical Co ltd
Current assignee: Hunan Zhongda Mechanical And Electrical Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-07-07
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a heat exchanger which is convenient for adjusting heat exchange temperature, comprising a heat exchange shell and an external power box, both ends of the heat exchange shell are communicated with flow guide pipes, the outside of the first water tank is fixedly provided with a relay through bolts, a first float switch and a second float switch are respectively and fixedly arranged on the inner walls of the two sides of the first water tank, a first drainage pipe is communicated with one corner of the second water tank far away from the water outlet pipe, a temperature controller is fixedly arranged outside the second water tank through bolts, the side part of the second water tank is communicated with a second water discharge pipe, the outer end of the second water discharge pipe is communicated with a water pump, the external power box is connected with the second float switch and the water pump in series in sequence, a connecting pipe is communicated with the water outlet of the water pump, one end of the connecting pipe, which is far away from the water pump, is partially communicated with the first water tank of the water inlet pipe and the heat exchange shell. The heat exchanger is convenient to adjust and control the temperature of the output medium.

Description

Heat exchanger convenient for adjusting heat exchange temperature

Technical Field

The utility model relates to a heat exchanger technical field specifically is a conveniently adjust heat transfer temperature's heat exchanger.

Background

The tubular (also called shell-and-tube, shell-and-tube) heat exchanger is the most typical dividing wall type heat exchanger, and has a long history of industrial application and still dominates all heat exchangers so far. The tubular heat exchanger mainly comprises a shell, a tube bundle, a tube plate, an end enclosure and the like, wherein the shell is mostly circular, the interior of the shell is provided with the parallel tube bundle, and two ends of the tube bundle are fixed on the tube plate.

When the existing tubular heat exchanger is used for heat exchange, the temperature of a heat exchange medium cannot be adjusted and controlled, but under some conditions, the temperature of the heat exchange medium output by the heat exchanger can be used only by specifying a certain temperature.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a conveniently adjust heat transfer temperature's heat exchanger, this heat exchanger is convenient to carry out regulation control to the temperature of output medium to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a heat exchanger convenient for adjusting heat exchange temperature comprises a heat exchange shell and an external power supply box, wherein two ends of the heat exchange shell are communicated with flow guide pipes, a group of flow guide pipes are fixedly provided with first electromagnetic valves, baffles are equidistantly and crossly arranged in the heat exchange shell, heat exchange pipes are equidistantly arranged in the baffles in a penetrating manner, two ends of each heat exchange pipe are respectively communicated with a water inlet pipe and a water outlet pipe, the water inlet pipe is communicated with external water supply equipment, the water inlet pipe and the water outlet pipe are respectively penetrated through the upper part of the heat exchange shell and the lower part of the heat exchange shell, one end of the water inlet pipe outside the heat exchange shell is provided with a first water tank, the upper side and the lower side of the first water tank are both communicated with the water inlet pipe, the outside of the first water tank is fixedly provided with a relay through bolts, and, a second electromagnetic valve is fixedly arranged on the water inlet pipe at the upper part of the first water tank, the external power box is sequentially connected with the first float switch, the relay and the second electromagnetic valve in series, the lower end of the water outlet pipe is communicated with a second water tank, one corner of the second water tank far away from the water outlet pipe is communicated with a first water outlet pipe, a third electromagnetic valve is fixedly arranged on the first drain pipe, a temperature controller is fixedly arranged outside the second water tank through a bolt, the external power supply box is connected with the temperature controller, the first electromagnetic valve and the third electromagnetic valve in series in sequence, the side part of the second water tank is communicated with a second drain pipe, the outer end of the second drain pipe is communicated with a water pump, the external power supply box is sequentially connected with the second float switch and the water pump in series, the water outlet of the water pump is communicated with a connecting pipe, and one end of the connecting pipe, which is far away from the water pump, is partially communicated with the first water tank of the water inlet pipe and the heat exchange shell.

Preferably, a heat preservation shell is fixedly arranged outside the second water tank.

Preferably, the lateral part of second water tank fixed welding has the fixed block, the water pump passes through bolt fixed mounting on the fixed block.

Preferably, the temperature controller is a normally closed temperature controller, the temperature sensing part of the temperature controller is arranged in the second water tank, the first electromagnetic valve is a normally open electromagnetic valve, and the third electromagnetic valve is a normally closed electromagnetic valve.

Preferably, the first float switch is a normally closed float switch, the relay is a time delay closing relay, and the second electromagnetic valve is a normally closed electromagnetic valve.

Preferably, the second float switch is a normally open float switch.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the water outlet of the multi-group heat exchange tubes of the utility model is communicated with the water outlet tube, the water inlet of the multi-group heat exchange tubes is communicated with the water inlet tube, the lower end of the water outlet tube is communicated with the second water tank, the water in the second water tank is pumped into the water inlet tube through the water pump, and then the water for heat exchange in the second water tank is circulated, and the heat exchange effect of the water is enhanced;

2. the utility model discloses a second water tank is provided with the temperature controller outside, the temperature in the second water tank is monitored through the temperature controller, when the temperature in the second water tank reaches the rated temperature of temperature controller, the temperature controller makes the first solenoid valve switch on and off, the honeycomb duct stops getting into the hot fluid matter, the temperature controller makes the third solenoid valve switch on and off, make the first drain pipe drain, the water level in the first water tank drops, the first float switch is switched on, the second solenoid valve is delayed to switch on through relay control to supply water in the inlet pipe, the second float switch makes the water pump switch off, stop circulating the water in the second water tank, when the water in the second water tank is drained, the second solenoid valve is opened, the inlet pipe is switched on, when the water in the inlet pipe flows into the second water tank, the temperature controller is switched off, the third solenoid valve is closed, the first solenoid valve is opened, when the water level in the first water tank rises to the highest position, the first float switch is powered off, the second electromagnetic valve is closed, the water inlet pipe stops water inflow, the second float switch controls the water pump to be powered on to work, water in the second water tank continues to be extracted circularly, the device is high in automation degree, and the water temperature of outlet water of the heat exchanger is constant and convenient to adjust through adjusting the contact temperature of the temperature controller.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the first water tank of the present invention;

fig. 3 is a block diagram of the circuit system of the present invention.

In the figure: 1. a heat exchange housing; 2. a flow guide pipe; 3. a water inlet pipe; 4. a heat exchange pipe; 5. a water outlet pipe; 6. a first solenoid valve; 7. a first water tank; 8. a relay; 9. a second solenoid valve; 10. a baffle plate; 11. a connecting pipe; 12. a heat-insulating shell; 13. a second water tank; 14. a first drain pipe; 15. a third electromagnetic valve; 16. a temperature controller; 17. an external power supply box; 18. a water pump; 19. a fixed block; 20. a second drain pipe; 21. a second float switch; 22. the first float switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a heat exchanger convenient for adjusting heat exchange temperature comprises a heat exchange shell 1 and an external power box 17 for supplying power to the heat exchanger, wherein two ends of the heat exchange shell 1 are communicated with guide pipes 2 for guiding heat flow, a group of guide pipes 2 are fixedly provided with a first electromagnetic valve 6 for controlling the opening and closing of a flow inlet of the guide pipes 2, baffles 10 are equidistantly and crossly arranged in the heat exchange shell 1, the baffles 10 are aluminum alloy plates and are used for preventing the short circuit of fluid in the heat exchanger and increasing the fluid speed, the fluid is forced to pass through the inside of the heat exchange shell 1 according to a specified path for multiple cross flows, so that the turbulence degree is greatly increased, the heat exchange efficiency is further increased, heat exchange tubes 4 for exchanging heat of the heat flow in the heat exchanger are equidistantly arranged in a penetrating manner in the baffles 10, two ends of the heat exchange tubes 4 are respectively communicated with a water inlet tube 3 for feeding water into the heat, the water inlet pipe 3 is communicated with external water supply equipment, the water inlet pipe 3 and the water outlet pipe 5 respectively penetrate through the upper part of the heat exchange shell 1 and the lower part of the heat exchange shell 1, one end of the water inlet pipe 3 outside the heat exchange shell 1 is provided with a first water tank 7, the upper side and the lower side of the first water tank 7 are both communicated with the water inlet pipe 3, the outside of the first water tank 7 is fixedly provided with a relay 8 for controlling the delayed energization of a second electromagnetic valve 9 through bolts, the energization delayed time of the relay 8 is the time for water in the second water tank 13 to completely flow out, the inner walls of the two sides of the first water tank 7 are respectively and fixedly provided with a first float switch 22 for controlling the work of the second electromagnetic valve 9 and a second float switch 21 for controlling the work of a water pump 18, an external power supply box 17 is sequentially connected with the first float switch 22, the relay 8 and the second electromagnetic valve 9 in series, one corner of the second water tank 13, which is, a third electromagnetic valve 15 is fixedly installed on the first water discharge pipe 14, a temperature controller 16 is fixedly installed outside the second water tank 13 through bolts, an external power supply box 17 is sequentially connected with the temperature controller 16, the first electromagnetic valve 6 and the third electromagnetic valve 15 in series, the side part of the second water tank 13 is communicated with a second water discharge pipe 20, the outer end of the second water discharge pipe 20 is communicated with a water pump 18, the external power supply box 17 is sequentially connected with a second float switch 21 and the water pump 18 in series, a water outlet of the water pump 18 is communicated with a connecting pipe 11, and one end, far away from the water pump 18, of the connecting pipe 11 is communicated with the part between the first water tank 7 of the water inlet.

Specifically, a heat preservation shell 12 is fixedly arranged outside the second water tank 13. The water in the second water tank 13 is kept warm.

Specifically, a fixing block 19 is fixedly welded to the side of the second water tank 13, and the water pump 18 is fixedly mounted on the fixing block 19 through bolts.

Specifically, the temperature controller model is 1005 normally closed temperature controller, the temperature sensing part of the temperature controller 16 is arranged in the second water tank 13, the first electromagnetic valve 6 model is a DN25 normally open electromagnetic valve, and the third electromagnetic valve 15 model is a DN25 normally closed electromagnetic valve.

Specifically, the model of the first float switch 22 is an RP5210 normally closed float switch, the model of the relay 8 is an JZS3A delay closing relay, and the model of the second electromagnetic valve 9 is a DN25 normally closed electromagnetic valve.

Specifically, the second float switch 21 is an RP5210 normally open float switch.

The working principle is as follows: when the water heater is used, a cold medium is added into the heat exchanger through the water inlet pipe 3, a heat medium is added into the heat exchanger through the water guide pipe 2, the temperature controller 16 is arranged outside the second water tank 13, the temperature in the second water tank 13 is monitored through the temperature controller 16, when the temperature in the second water tank 13 reaches the rated temperature of the temperature controller 16, the temperature controller 16 enables the first electromagnetic valve 6 to be electrified and closed, the water guide pipe 2 stops entering hot fluid, the temperature controller 16 enables the third electromagnetic valve 15 to be switched on and off, the first water discharge pipe 14 discharges water, the water level in the first water tank 7 is lowered, the first float switch 22 is electrified, the relay 8 controls the second electromagnetic valve 9 to be electrified for supplying water into the water inlet pipe 3 in a delayed mode, the second float switch 21 enables the water pump 18 to be switched off, the water in the second water tank 13 stops circulating, and when the water in the second water tank 13 is discharged, the second electromagnetic, the water inlet pipe 3 is communicated, when water in the water inlet pipe 3 flows into the second water tank 13, the temperature controller 16 senses the temperature and is powered off, the third electromagnetic valve 15 is closed, the first electromagnetic valve 6 is opened, when the water level in the first water tank 7 rises to the highest position, the first float switch 22 is powered off, the second electromagnetic valve 9 is closed, the water inlet pipe 3 stops water inlet, the second float switch 21 controls the water pump 18 to be powered on to work, water in the second water tank 13 continues to be extracted circularly, the device has high automation degree, and the water outlet temperature of the heat exchanger is constant and is convenient to adjust by adjusting the contact temperature of the temperature controller 16; the delivery port and the outlet pipe 5 intercommunication of multiunit heat exchange tube 4, the water inlet and the inlet tube 3 intercommunication of multiunit heat exchange tube 4, the lower extreme intercommunication of outlet pipe 5 has second water tank 13, through water pump 18 with the water extraction in the second water tank 13 to the inlet tube 3 in, and then circulate to the water of heat transfer in the second water tank 13.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a conveniently adjust heat exchanger of heat transfer temperature, includes heat transfer shell (1) and external power supply case (17), its characterized in that: the heat exchange shell comprises a heat exchange shell (1), wherein two ends of the heat exchange shell (1) are communicated with a flow guide pipe (2), a group of flow guide pipes (2) are fixedly provided with first electromagnetic valves (6), baffle plates (10) are arranged in the heat exchange shell (1) in an equidistant mode in a crossed mode, heat exchange pipes (4) are arranged in the baffle plates (10) in a penetrating mode in an equidistant mode, two ends of each heat exchange pipe (4) are communicated with a water inlet pipe (3) and a water outlet pipe (5) respectively, the water inlet pipes (3) are communicated with external water supply equipment, the water inlet pipes (3) and the water outlet pipes (5) are respectively penetrated through the upper portion of the heat exchange shell (1) and the lower portion of the heat exchange shell (1), the water inlet pipes (3) are provided with a first water tank (7) at one end outside the heat exchange shell (1), the upper side and the lower side of the, the water purifier is characterized in that a first float switch (22) and a second float switch (21) are fixedly mounted on the inner walls of two sides of the first water tank (7) respectively, a second electromagnetic valve (9) is fixedly mounted on a water inlet pipe (3) on the upper portion of the first water tank (7), an external power supply box (17) is sequentially connected with the first float switch (22), a relay (8) and the second electromagnetic valve (9) in series, the lower end of the water outlet pipe (5) is communicated with a second water tank (13), a first water outlet pipe (14) is communicated with one corner, far away from the water outlet pipe (5), of the second water tank (13), a third electromagnetic valve (15) is fixedly mounted on the first water outlet pipe (14), a temperature controller (16) is fixedly mounted on the outside of the second water tank (13) through bolts, and the external power supply box (17) is sequentially connected with the temperature controller (16), the first electromagnetic valve (6) and, the side part of the second water tank (13) is communicated with a second water drainage pipe (20), the outer end of the second water drainage pipe (20) is communicated with a water pump (18), the external power supply box (17) is sequentially connected with the second float switch (21) and the water pump (18) in series, a water outlet of the water pump (18) is communicated with a connecting pipe (11), and one end, far away from the water pump (18), of the connecting pipe (11) is partially communicated with the first water tank (7) of the water inlet pipe (3) and the heat exchange shell (1).

2. The heat exchanger convenient for adjusting heat exchange temperature according to claim 1, is characterized in that: and a heat preservation shell (12) is fixedly arranged outside the second water tank (13).

3. The heat exchanger convenient for adjusting heat exchange temperature according to claim 1, is characterized in that: the side part of the second water tank (13) is fixedly welded with a fixing block (19), and the water pump (18) is fixedly installed on the fixing block (19) through bolts.

4. The heat exchanger convenient for adjusting heat exchange temperature according to claim 1, is characterized in that: the temperature controller (16) is a normally closed temperature controller, a temperature sensing part of the temperature controller (16) is arranged in the second water tank (13), the first electromagnetic valve (6) is a normally open electromagnetic valve, and the third electromagnetic valve (15) is a normally closed electromagnetic valve.

5. The heat exchanger convenient for adjusting heat exchange temperature according to claim 1, is characterized in that: the first float switch (22) is a normally closed float switch, the relay (8) is a time delay closing relay, and the second electromagnetic valve (9) is a normally closed electromagnetic valve.

6. The heat exchanger convenient for adjusting heat exchange temperature according to claim 1, is characterized in that: the second float switch (21) is a normally open float switch.