CN220039154U

CN220039154U - Cooling system of sludge drying machine

Info

Publication number: CN220039154U
Application number: CN202321181591.8U
Authority: CN
Inventors: 杨秀芳; 谢志兴; 王志刚
Original assignee: Sichuan West Poly Xin Chemical Packing Co ltd
Current assignee: Sichuan West Poly Xin Chemical Packing Co ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-11-17
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a cooling system of a sludge drying machine, which comprises a circulating water pipe and a cooling tower, wherein the cooling tower is connected with an air inlet pipe and an air outlet pipe, a cold water tray is arranged in the cooling tower between the air inlet pipe and the air outlet pipe, a refrigerant channel is arranged in the cold water tray, and an air vent penetrating through the cold water tray is formed in the cold water tray; the cold water disc is connected with a water inlet pipe and a water return pipe, the water inlet pipe and the water return pipe are respectively connected with a circulating water pipe, and the circulating water pipe is also connected with a cooling water tank and refrigerating equipment. According to the cooling system, the cooling tower is arranged in the air circulation system, the circulating air is cooled in the cooling tower, and moisture in the circulating air is condensed on the cold water disc while cooling, namely, dehumidification of the circulating air is achieved while temperature control of the sludge drying machine is achieved.

Description

Cooling system of sludge drying machine

Technical Field

The utility model relates to the technical field of sludge drying machines, in particular to a cooling system of a sludge drying machine.

Background

In the sewage treatment process, sludge is required to be dried, and the existing process is to crush and extrude the sludge into strips and then send the strips into a belt type sludge drying box for drying, wherein the belt type sludge drying box is provided with an air circulation system which comprises a fan, a heat pump and the like, and the air circulation system heats air through the heat pump and circulates in the belt type sludge drying box so as to dry the strip-shaped sludge passing through the belt type drying box;

the existing belt type sludge drying box is used for continuously heating circulating air in the air circulation process by the heat pump, so that the temperature inside the equipment is possibly too high, and meanwhile, the humidity in the circulating air is increased while the sludge is dried, so that the drying effect is affected, and the electronic equipment in the air circulation system is also possibly affected.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a cooling system of a sludge drying machine, which is characterized in that a cooling tower is arranged in an air circulation system, the circulating air is cooled in the cooling tower, and moisture in the circulating air is condensed on a cold water disc while cooling, namely, the dehumidification of the circulating air is completed while the temperature control of the sludge drying machine is realized.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cooling system of a sludge drying machine, which comprises a circulating water pipe and a cooling tower, wherein the cooling tower is connected with an air inlet pipe and an air outlet pipe, a cold water tray is arranged in the cooling tower between the air inlet pipe and the air outlet pipe, a refrigerant channel is arranged in the cold water tray, and an air vent penetrating through the cold water tray is formed in the cold water tray;

the cold water disc is connected with a water inlet pipe and a water return pipe, the water inlet pipe and the water return pipe are respectively connected with a circulating water pipe, and the circulating water pipe is also connected with a cooling water tank and refrigerating equipment.

According to the cooling system of the sludge drying machine, water in the cooling water tank enters the cold water disc through the water inlet pipe after being cooled by the refrigerating equipment, the cold water disc is cooled, hot and humid air enters the cooling tower from the air inlet pipe, the hot and humid air exchanges heat with the cold water disc, moisture in the air is condensed on the cold water disc while cooling, and finally dry and cold air returns to the air circulation system from the exhaust pipe.

According to the cooling system, the cooling tower is arranged in the air circulation system, the circulating air is cooled in the cooling tower, and moisture in the circulating air is condensed on the cold water disc while cooling, namely, dehumidification of the circulating air is achieved while temperature control of the sludge drying machine is achieved.

In a further technical scheme, the cold water tray is distributed with a plurality of cold water trays along the direction of the air flow in the cooling tower.

The plurality of cold water trays can provide multistage cooling for damp and hot air, further promote the effect of cooling.

In a further technical scheme, the plurality of cold water trays are communicated with the refrigerant channels through the intermediate pipes in sequence.

The plurality of cold water trays are connected in series through the intermediate pipe, so that a pipeline for cooling water circulation is simplified.

In a further technical scheme, the inner wall of the cooling tower is provided with an insulating layer.

The heat preservation layer is used for preserving heat in the cooling tower, so that external heat is prevented from entering the cooling tower, and the cooling effect is guaranteed.

In a further technical scheme, the cooling tower is provided with a mounting hole for the water inlet pipe and the water return pipe to pass through, a heat preservation connecting sleeve is sleeved between the mounting hole and the water inlet pipe, and a heat preservation sleeve is arranged between the heat preservation connecting sleeve and the water inlet pipe.

Through the setting of heat preservation adapter sleeve and heat preservation cover, on the one hand can be with the sealed installation of inlet tube stability in the mounting hole department, on the other hand avoided carrying out heat exchange between inlet tube and the tower wall of cooling tower.

In a further technical scheme, the two ends of the heat preservation connecting sleeve extend out of the mounting holes, a locking ring is arranged on the outer peripheral surface of one end of the heat preservation connecting sleeve, which is positioned on the outer side of the cooling tower, and a locking sleeve is detachably connected with the outer peripheral surface of one end of the heat preservation connecting sleeve, which is positioned on the inner side of the cooling tower.

The arrangement of the locking ring and the locking sleeve facilitates the installation and fixation of the heat preservation connecting sleeve on one hand and improves the sealing effect of the installation hole on the other hand.

In a further technical scheme, the cold water disc is connected with the locking sleeve through the connecting frame.

The setting of link makes the cold water dish can install on the tower wall of cooling tower, and the inlet tube atress, life is longer.

In a further technical scheme, the cold water disc comprises a cold water upper disc and a cold water lower disc, the outer peripheral surfaces of the cold water upper disc and the cold water lower disc are connected through a plugging ring, the vent holes are correspondingly formed in the cold water upper disc and the cold water lower disc respectively, and vent pipes are arranged in the vent holes of the cold water upper disc and the vent holes of the cold water lower disc in a penetrating mode.

The design of the upper disc and the lower disc of the cold water disc and the design of the plugging ring facilitate production and processing.

In a further aspect, the vent tube is helical.

The spiral breather pipe makes the area of contact between the circulating air and the cold water disc bigger when passing the breather pipe, and the cooling effect to the circulating air is better.

In a further technical scheme, the cold water upper disc is concavely arranged towards the cold water lower disc.

The concave arrangement of the cold water upper disc enables condensed moisture in the cooling process of the circulating air to be converged to one point and flow towards the lowest part of the cooling tower along the vent hole, so that the cooling tower is convenient to clean.

The beneficial effects are that:

1. according to the cooling system, the cooling tower is arranged in the air circulation system, the circulating air is cooled in the cooling tower, and moisture in the circulating air is condensed on the cold water disc while cooling, namely, dehumidification of the circulating air is achieved while temperature control of the sludge drying machine is achieved.

2. The plurality of cold water trays can provide multistage cooling for damp and hot air, further promote the effect of cooling.

3. The plurality of cold water trays are connected in series through the intermediate pipe, so that a pipeline for cooling water circulation is simplified.

4. The heat preservation layer is used for preserving heat in the cooling tower, so that external heat is prevented from entering the cooling tower, and the cooling effect is guaranteed.

5. Through the setting of heat preservation adapter sleeve and heat preservation cover, on the one hand can be with the sealed installation of inlet tube stability in the mounting hole department, on the other hand avoided carrying out heat exchange between inlet tube and the tower wall of cooling tower.

6. The arrangement of the locking ring and the locking sleeve facilitates the installation and fixation of the heat preservation connecting sleeve on one hand and improves the sealing effect of the installation hole on the other hand.

7. The setting of link makes the cold water dish can install on the tower wall of cooling tower, and the inlet tube atress, life is longer.

8. The design of the upper disc and the lower disc of the cold water disc and the design of the plugging ring facilitate production and processing.

9. The spiral breather pipe makes the area of contact between the circulating air and the cold water disc bigger when passing the breather pipe, and the cooling effect to the circulating air is better.

10. The concave arrangement of the cold water upper disc enables condensed moisture in the cooling process of the circulating air to be converged to one point and flow towards the lowest part of the cooling tower along the vent hole, so that the cooling tower is convenient to clean.

Drawings

FIG. 1 is a schematic view showing the overall structure of a cooling system of a sludge dryer according to one embodiment of the present utility model;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure of a cold water tray of a cooling system of a sludge dryer according to one embodiment of the present utility model;

FIG. 4 is a schematic view showing a structure of a cold water tray of a cooling system of a sludge dryer according to another embodiment of the present utility model;

fig. 5 is a schematic view showing a structure of a cold water tray of a cooling system of a sludge dryer according to another embodiment of the present utility model.

10. A cooling tower; 11. an air inlet pipe; 12. an exhaust pipe; 13. a heat preservation layer; 20. a cold water tray; 21. a connecting frame; 22. cold water is put on a disc; 23. a cold water tray; 24. a plugging ring; 25. a vent pipe; 30. a cooling water tank; 40. a refrigeration device; 50. a middle tube; 60. a circulating water pipe; 61. a water inlet pipe; 62. the heat preservation connecting sleeve; 63. a locking sleeve; 64. and a water return pipe.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

examples:

the cooling system of the sludge drier, as shown in figure 1, comprises a circulating water pipe 60 and a cooling tower 10, wherein the cooling tower 10 is connected with an air inlet pipe 11 and an air outlet pipe 12, a cold water disc 20 is arranged in the cooling tower 10 between the air inlet pipe 11 and the air outlet pipe 12, a refrigerant channel is arranged in the cold water disc 20, and vent holes penetrating through the cold water disc 20 are formed in the cold water disc;

the cold water tray 20 is connected with a water inlet pipe 61 and a water return pipe 64, the water inlet pipe 61 and the water return pipe 64 are respectively connected with a circulating water pipe 60, and the circulating water pipe 60 is also connected with a cooling water tank 30 and a refrigerating apparatus 40.

The circulating pump is arranged in the water circulating pipeline; in this embodiment, the circulation pump is provided inside the water tank.

The air inlet pipe 11 and the air outlet pipe 12 are connected in parallel in the air circulation system of the sludge drying machine, and a three-way valve is arranged at the joint, namely the air circulation system of the sludge drying machine can work independently, or the cooling system can be added into the air circulation system through valve change, and optionally, the cooling system is started when the internal temperature of the equipment is higher than a certain set value, and the cooling system is closed when the internal temperature of the equipment is lower than another set value.

According to the cooling system of the sludge drier, water in the cooling water tank 30 enters the cold water tray 20 through the water inlet pipe 61 after being refrigerated by the refrigerating equipment 40, the cold water tray 20 is cooled, hot and humid air enters the cooling water tank 30 from the water return pipe 64, the hot and humid air exchanges heat with the cold water tray 20, moisture in the air is condensed on the cold water tray 20 while the temperature is reduced, and finally dry and cold air returns to the air circulation system from the exhaust pipe 12.

According to the cooling system disclosed by the utility model, the cooling tower 10 is arranged in the air circulation system, the circulating air is cooled in the cooling tower 10, and moisture in the circulating air is condensed on the cold water disc 20 while cooling, namely, the dehumidification of the circulating air is finished while the temperature control of the sludge drier is realized.

In one embodiment, as shown in FIG. 1, a plurality of cold water trays 20 are arranged along the flow path inside the cooling tower 10.

The plurality of cold water trays 20 can provide multistage cooling for the hot and humid air, further promote the effect of cooling.

In one embodiment, as shown in fig. 1, the plurality of cold water trays 20 are sequentially connected to the refrigerant channels by an intermediate pipe 50.

The plurality of cold water trays 20 are connected in series by the intermediate tube 50, simplifying the piping of the cooling water circulation.

In one embodiment, as shown in fig. 2, the inner wall of the cooling tower 10 is provided with a heat insulating layer 13.

The heat preservation layer 13 is used for preserving heat in the cooling tower 10, so that external heat is prevented from entering the cooling tower 10, and the cooling effect is ensured.

In one embodiment, as shown in fig. 2, a mounting hole for the water inlet pipe 61 and the water return pipe 64 to pass through is formed in the cooling tower 10, a heat insulation connecting sleeve 62 is sleeved between the mounting hole and the water inlet pipe 61, and a heat insulation sleeve is arranged between the heat insulation connecting sleeve 62 and the water inlet pipe 61.

Through the arrangement of the heat preservation connecting sleeve 62 and the heat preservation sleeve, the water inlet pipe 61 can be stably and hermetically arranged at the mounting hole, and heat exchange between the water inlet pipe 61 and the tower wall of the cooling tower 10 is avoided.

In one embodiment, as shown in fig. 2, mounting holes extend from two ends of the thermal insulation connecting sleeve 62, a locking ring is disposed on an outer peripheral surface of one end of the thermal insulation connecting sleeve 62 located outside the cooling tower 10, and a locking sleeve 63 is detachably connected to an outer peripheral surface of one end of the thermal insulation connecting sleeve 62 located inside the cooling tower 10.

During installation, the heat-preserving connecting sleeve 62 is inserted into the installation hole from the outside of the cooling tower 10, and then the locking sleeve 63 is sleeved into the end face of the heat-preserving connecting sleeve 62 in the cooling tower 10, so that the locking sleeve 63 and the locking ring clamp the tower wall of the cooling tower 10, and the installation of the heat-preserving connecting sleeve 62 and the locking sleeve 63 is completed.

In this embodiment, the locking sleeve 63 is in threaded engagement with the thermal insulation connecting sleeve 62, that is, the inner ring of the locking sleeve 63 is provided with an internal thread, and the outer wall of the thermal insulation connecting sleeve 62 extending out of one end of the mounting hole is provided with an external thread.

The arrangement of the locking ring and the locking sleeve 63 facilitates the installation and fixation of the heat preservation connecting sleeve 62 on one hand and improves the sealing effect of the installation hole on the other hand.

In one embodiment, as shown in FIG. 2, the cold water tray 20 is connected to the locking sleeve 63 by a connector 21.

It will be appreciated that without the connection frame 21, a portion of the weight of the cold water tray 20 would be applied to the water inlet pipe 61, and bending, breakage, etc. may occur in the case of a force applied to the connection between the water inlet pipe 61 and the cold water tray 20, and the pressure between the water inlet pipe 61 and the wall of the cooling tower 10 increases when the force is applied, so that the life of the water inlet pipe 61 may be affected. The arrangement of the connecting frame 21 enables the cold water tray 20 to be installed on the tower wall of the cooling tower 10, the water inlet pipe 61 is not stressed, and the service life is longer.

In another embodiment, as shown in fig. 3, the cold water tray 20 includes an upper cold water tray 22 and a lower cold water tray 23, the outer peripheral surfaces of the upper cold water tray 22 and the lower cold water tray 23 are connected by a sealing ring 24, and ventilation holes are correspondingly formed in the upper cold water tray 22 and the lower cold water tray 23, and ventilation pipes 25 are respectively arranged in the ventilation holes of the upper cold water tray 22 and the ventilation holes of the lower cold water tray 23 in a penetrating manner.

In the present embodiment, 2 cold water trays 20 are exemplified.

The design of the upper and lower plates of the cold water plate 20 and the design of the plugging ring 24 facilitate production and processing, during processing, the basic plate-shaped structures of the cold water upper plate 22 and the cold water lower plate 23 are firstly processed, air holes are respectively opened on the basic plate-shaped structures of the cold water upper plate 22 and the cold water lower plate 23, the peripheries of the cold water upper plate 22 and the cold water lower plate 23 are plugged by the plugging ring 24, the vent pipes 25 are respectively welded at the vent holes, and finally, holes are formed at the positions where the water inlet pipe 61 and the water return pipe 64 are to be connected, and the processing procedure is a simple machining procedure.

In another embodiment, as shown in FIG. 4, the vent tube 25 is helical.

The spiral breather pipe 25 makes the contact area between the circulating air and the cold water tray 20 bigger when passing through the breather pipe 25, and the cooling effect on the circulating air is better.

When the spiral vent pipe 25 is processed, two ends of the vent pipe 25 are required to be welded in the vent holes of the upper cold water disc 22 and the lower cold water disc 23 respectively, then the plugging ring 24 is welded, and the other procedures are unchanged.

In another embodiment, as shown in FIG. 5, the cold water upper plate 22 is recessed toward the cold water lower plate 23.

The concave arrangement of the cold water upper tray 22 allows condensed moisture to sink to a point and flow along the vent holes toward the lowest position of the cooling tower 10 during the cooling process of the circulating air, thereby facilitating cleaning.

In this embodiment, the vent pipe 25 is of uniform size for easy processing, so that the top of the vent pipe 25 extends beyond the surface of the upper cold water plate 22, and in some embodiments, the top of the vent pipe 25 is shaped to match the shape of the surface of the upper cold water plate 22, so that the surface of the upper cold water plate 22 is entirely free of protrusions, which is beneficial for collecting condensate.

In another embodiment, as shown in FIG. 3, the ventilation holes of adjacent two cold water trays 20 are staggered.

The staggered arrangement of the ventilation holes ensures that the circulating air does not directly pass through the next cold water tray 20 after passing through the previous cold water tray 20, but passes through the next cold water tray 20 after contacting the surface of the cold water tray 20, thereby further improving the cooling effect.

In another embodiment, as shown in fig. 3, the vent tube 25 and the intermediate tube 50 are all of the same gauge tubing, which facilitates both the processing of the tubing and the processing of the openings in the cold water tray 20.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The cooling system of the sludge drying machine is characterized by comprising a circulating water pipe and a cooling tower, wherein the cooling tower is connected with an air inlet pipe and an air outlet pipe, a cold water tray is arranged in the cooling tower between the air inlet pipe and the air outlet pipe, a refrigerant channel is arranged in the cold water tray, and an air vent penetrating through the cold water tray is formed in the cold water tray;

2. The cooling system of the sludge dryer according to claim 1, wherein the cold water tray is arranged in a plurality along the direction of the air flow in the cooling tower.

3. The cooling system of the sludge dryer according to claim 2, wherein the plurality of cold water trays are communicated with the refrigerant passage through the intermediate pipe in sequence.

4. The cooling system of the sludge dryer according to claim 1, wherein an inner wall of the cooling tower is provided with a heat insulating layer.

5. The cooling system of the sludge drier according to claim 1, wherein the cooling tower is provided with a mounting hole for the water inlet pipe and the water return pipe to pass through, a heat preservation connecting sleeve is sleeved between the mounting hole and the water inlet pipe, and a heat preservation sleeve is arranged between the heat preservation connecting sleeve and the water inlet pipe.

6. The cooling system of the sludge dryer according to claim 5, wherein the two ends of the heat preservation connecting sleeve extend out of the mounting holes, a locking ring is arranged on the outer peripheral surface of one end of the heat preservation connecting sleeve, which is positioned outside the cooling tower, and a locking sleeve is detachably connected with the outer peripheral surface of one end of the heat preservation connecting sleeve, which is positioned inside the cooling tower.

7. The cooling system of the sludge dryer of claim 6, wherein the cold water tray is connected with the locking sleeve through a connecting frame.

8. The cooling system of the sludge dryer according to claim 1, wherein the cold water tray comprises a cold water upper tray and a cold water lower tray, the outer peripheral surfaces of the cold water upper tray and the cold water lower tray are connected through a plugging ring, the vent holes are correspondingly formed in the cold water upper tray and the cold water lower tray respectively, and vent pipes are arranged in the vent holes of the cold water upper tray and the vent holes of the cold water lower tray in a penetrating manner.

9. The cooling system of the sludge drying machine of claim 8 wherein the breather tube is helical.

10. The cooling system of the sludge dryer of claim 8, wherein the cold water upper tray is concavely disposed toward the cold water lower tray.