Heat exchanger applied to cooling water tower

Abstract

The utility model discloses a heat exchanger applied to a cooling water tower, and relates to the technical field of heat exchangers. The heat exchanger comprises a heat exchanger body and a collecting device, the heat exchanger body is composed of a front end plate, a plurality of plate sheet sets and a rear end plate which are sequentially connected in a stacked mode, each plate sheet set is composed of a first plate sheet and a second plate sheet, a secondary refrigerant flow channel is formed between each first plate sheet and the corresponding second plate sheet, and a sealing edge low face is arranged on the outer edge of each first plate sheet. And an inlet high surface and an outlet high surface are respectively arranged on two sides of the sealing edge low surface. According to the utility model, the secondary refrigerant can be collected through the recovery container and guided into the multi-flow heat exchanger without power drive, the secondary refrigerant is guided out into the recovery container after being cooled, then a supercooling source is distributed to each equipment of a factory from the recovery container, and the secondary refrigerant generated in the operation of the equipment can be returned into the multi-flow heat exchanger without power drive. And therefore, not only is the frequent introduction of the secondary refrigerant saved, but also the occupied area of the heat exchanger equipment is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, in particular to a heat exchanger used in a cooling water tower. Background Art

[0002] Many devices used in factories need to cool the lubricating oil, especially in summer, when the oil temperature rises quickly. Usually a larger heat exchanger is needed for heat exchange and cooling of the machine. However, there are usually many devices in factories, which require a larger cold source flow or a lower cold source temperature. Currently, there is no solution to equip factory equipment with smaller heat exchangers to meet the cooling needs of the equipment when the cooling tower configuration is low. Therefore, the corresponding heat exchangers are larger or more in number, which will result in the problem of occupying too much space. Utility Model Content

[0003] The utility model aims to provide a heat exchanger applied to a cooling water tower, in which the refrigerant can be collected through a recovery container and introduced into a non-powered multi-pass heat exchanger, and then exported to the recovery container after cooling, and then the supercooling source is distributed from the recovery container to various equipment in the factory. The refrigerant generated during the operation of the equipment can be returned to the non-powered multi-pass heat exchanger to realize circulating operation, which not only saves the frequent introduction of the refrigerant, but also effectively reduces the floor space occupied by the heat exchanger equipment.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a heat exchanger used in a cooling water tower, comprising a heat exchanger body and a collecting device, wherein the heat exchanger body is composed of a front plate, a plurality of plate groups and a rear plate which are stacked and connected in sequence, wherein the plate group is composed of a first plate and a second plate, and a coolant flow channel is formed between the first plate and the second plate;

[0006] A sealing edge low surface is provided at the outer edge of the first plate, and an inlet high surface and an outlet high surface are respectively provided on both sides of the sealing edge low surface;

[0007] A sealing edge high surface is provided at the outer edge of the second plate, and an inlet low surface and an outlet low surface are respectively provided on both sides of the sealing edge high surface;

[0008] The sealing edge lower surface of the first plate is connected to the sealing edge higher surface of the second plate, an inlet groove is formed between the inlet higher surface of the first plate and the inlet lower surface of the second plate, and an outlet groove is formed between the outlet higher surface of the first plate and the outlet lower surface of the second plate;

[0009] The first plate is provided with a plurality of baffle wall lower surfaces, and the second plate is provided with a plurality of baffle wall higher surfaces connected to the baffle wall lower surfaces, the baffle wall lower surfaces and the baffle wall higher surfaces form strip-shaped barriers in the coolant flow channel, and the plurality of barriers form the coolant flow channel into a serpentine channel, and the inlet slot and the outlet slot are respectively connected to the two ends of the serpentine channel;

[0010] The first plate and the second plate are each provided with two corner holes, and the two corner holes are located at opposite corners of the plate group;

[0011] The collecting device comprises a recovery container, on which are provided a plurality of equipment recovery ports and a plurality of equipment distribution ports, a confluence hopper is provided at the bottom of the recovery container, the bottom of the confluence hopper is connected to the inlet slots of a plurality of plate groups through an upper confluence pipe, and the outlet slots of the plurality of plate groups are connected to the recovery container through a lower confluence pipe and a pipeline.

[0012] Furthermore, the heat exchanger body also includes two end tubes, which are fixed on the front end plate, and the two corner holes of the plate groups respectively form an inlet channel and an outlet channel, and the two end tubes are respectively connected to the inlet channel and the outlet channel.

[0013] Furthermore, a refrigerant flow channel is formed between two adjacent plate groups, and the inlet channel and the outlet channel are both connected to the refrigerant flow channel.

[0014] Furthermore, the heat exchanger body is arranged below the recovery container, the inlet slot of the heat exchanger body faces upward, and the end pipe close to the recovery container is the end pipe of the outlet channel.

[0015] Furthermore, the lower surface of the flow blocking wall is parallel to the length direction of the first plate, and a short interval and a long interval are formed between the two ends of the blocking wall and the two width edges of the first plate respectively, and the long interval is the turning point of the serpentine channel.

[0016] Furthermore, a plurality of sealing blocks are fixed on the second plate, and the sealing blocks are fixed in short intervals.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model can collect the refrigerant through a recovery container and introduce it into a non-powered multi-pass heat exchanger, and then export it to the recovery container after cooling, and then distribute the supercooling source from the recovery container to various equipment in the factory. The equipment start and stop can be determined based on multiple factors such as season, startup conditions, and heat exchange compliance. The refrigerant generated during the operation of the equipment can be returned to the non-powered multi-pass heat exchanger to achieve circulating operation, which not only saves the frequent introduction of the refrigerant, but also effectively reduces the floor space used by the heat exchanger equipment, and the cooling tower can also reduce the floor space cost simultaneously.

[0019] 2. The utility model designs a new type of plate combination, and can form a barrier through the cooperation of the lower surface of the baffle wall and the upper surface of the baffle wall, which can form a serpentine channel in the refrigerant flow channel, and can increase the heat exchange time and area of ​​the refrigerant in the heat exchanger, thereby improving the heat exchange effect. At the same time, the refrigerant in the heat exchanger has no power and pressure, and the refrigerant only flows by gravity, which can reduce the flow rate in the heat exchanger, thereby further increasing the time in the heat exchanger body, which can further improve the heat exchange effect.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a heat exchanger used in a cooling water tower according to the utility model;

[0023] Figure 2 It is the structural explosion diagram of the heat exchanger body;

[0024] Figure 3 It is a structural schematic diagram of the plate group;

[0025] Figure 4 is a schematic structural diagram of a first plate;

[0026] Figure 5 is a schematic structural diagram of the second plate;

[0027] Figure 6 It is a schematic diagram of the structure after the plate group is cut off at the blocking position;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-heat exchanger body, 2-front end plate, 3-plate group, 4-rear end plate, 5-convergence bucket, 6-lower convergence pipe, 7-end pipe, 8-block, 9-barrier, 301-first plate, 302-second plate, 303-sealing edge low surface, 304-inlet high surface, 305-outlet high surface, 306-sealing edge high surface, 307-inlet low surface, 308-outlet low surface, 309-inlet groove, 310-outlet groove, 311-blocking wall low surface, 312-blocking wall high surface, 313-corner hole, 501-upper convergence pipe. DETAILED DESCRIPTION

[0030] 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 of 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.

[0031] See also Figure 1-6 As shown, the utility model is a heat exchanger used in a cooling water tower, comprising a heat exchanger body 1 and a collecting device, wherein the heat exchanger body 1 is composed of a front plate 2, a plurality of plate groups 3 and a rear plate 4 which are stacked and connected in sequence, the plate group 3 is composed of a first plate 301 and a second plate 302, and a coolant flow channel is formed between the first plate 301 and the second plate 302;

[0032] A sealing edge low surface 303 is provided at the outer edge of the first plate 301, and an inlet high surface 304 and an outlet high surface 305 are respectively provided on both sides of the sealing edge low surface 303;

[0033] A sealing edge high surface 306 is provided at the outer edge of the second plate 302, and an inlet low surface 307 and an outlet low surface 308 are provided on both sides of the sealing edge high surface 306;

[0034] The sealing edge lower surface 303 of the first plate 301 is connected to the sealing edge higher surface 306 of the second plate 302, an inlet groove 309 is formed between the inlet higher surface 304 of the first plate 301 and the inlet lower surface 307 of the second plate 302, and an outlet groove 310 is formed between the outlet higher surface 305 of the first plate 301 and the outlet lower surface 308 of the second plate 302;

[0035] The first plate 301 is provided with a plurality of baffle wall lower surfaces 311, and the second plate 302 is provided with a plurality of baffle wall upper surfaces 312 connected to the baffle wall lower surfaces 311. The baffle wall lower surfaces 311 and the baffle wall upper surfaces 312 form a strip-shaped barrier 9 in the brine flow channel. The brine flow channel is formed into a serpentine channel by the plurality of barriers 9. The inlet groove 309 and the outlet groove 310 are respectively connected to the two ends of the serpentine channel.

[0036] Two corner holes 313 are provided on each of the first plate 301 and the second plate 302. The two corner holes 313 are located at the opposite corners of the plate group 3.

[0037] The collecting device includes a recovery container, which is provided with a plurality of equipment recovery ports and a plurality of equipment distribution ports. A confluence hopper 5 is provided at the bottom of the recovery container. The bottom of the confluence hopper 5 is connected to the inlet grooves 309 of the plurality of plate groups 3 through an upper confluence pipe 501, and the outlet grooves 310 of the plurality of plate groups 3 are connected to the recovery container through a lower confluence pipe 6 and a pipeline.

[0038] Among them Figure 1-2 As shown, the heat exchanger body 1 also includes two end tubes 7, which are fixed on the front end plate 2. The two corner holes 313 of the plate groups 3 respectively form an inlet channel and an outlet channel, and the two end tubes 7 are respectively connected to the inlet channel and the outlet channel.

[0039] A refrigerant flow channel is formed between two adjacent plate groups 3, and both the inlet channel and the outlet channel are connected to the refrigerant flow channel.

[0040] Among them Figure 1 As shown, the heat exchanger body 1 is arranged below the recovery container, the inlet slot 309 of the heat exchanger body 1 faces upward, and the end pipe 7 close to the recovery container is the end pipe 7 of the outlet channel.

[0041] Among them Figure 3-6 As shown, the lower surface 311 of the baffle wall is parallel to the length direction of the first plate 301, and a short interval and a long interval are formed between the two ends of the baffle 9 and the two width edges of the first plate 301, respectively, and the long interval is the turning point of the serpentine channel.

[0042] Among them Figure 5-6 As shown, a plurality of sealing blocks 8 are fixed on the second plate 302, and the sealing blocks 8 are fixed in short intervals.

[0043] The working principle of the utility model is as follows: the coolant of all equipment can be input into the recovery container, the coolant in the recovery container is discharged from the upper manifold 501 to the inlet groove 309 of the heat exchanger body 1, the coolant flows along the serpentine channel with gravity and is discharged from the outlet groove 310 to the lower manifold 6, the coolant in the lower manifold 6 is discharged into the recovery container by the pipeline, the coolant in the recovery container can be respectively input into all equipment, the refrigerant is input into the heat exchanger body 1 from the lower end pipe 7, and is output from the upper end pipe 7 after heat exchange with the coolant flow channel.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat exchanger used in a cooling water tower, comprising a heat exchanger body (1), wherein the heat exchanger body (1) is composed of a front plate (2), a plurality of plate groups (3) and a rear plate (4) which are stacked and connected in sequence, wherein the plate group (3) is composed of a first plate (301) and a second plate (302), wherein a coolant flow channel is formed between the first plate (301) and the second plate (302), and wherein: Also included is a collection device; A sealing edge low surface (303) is provided at the outer edge of the first plate (301), and an inlet high surface (304) and an outlet high surface (305) are respectively provided on both sides of the sealing edge low surface (303); A sealing edge high surface (306) is provided at the outer edge of the second plate (302), and an inlet low surface (307) and an outlet low surface (308) are respectively provided on both sides of the sealing edge high surface (306); The sealing edge lower surface (303) of the first plate (301) is connected to the sealing edge higher surface (306) of the second plate (302); an inlet groove (309) is formed between the inlet higher surface (304) of the first plate (301) and the inlet lower surface (307) of the second plate (302); and an outlet groove (310) is formed between the outlet higher surface (305) of the first plate (301) and the outlet lower surface (308) of the second plate (302); The first plate (301) is provided with a plurality of flow-blocking wall lower surfaces (311), and the second plate (302) is provided with a plurality of flow-blocking wall upper surfaces (312) connected to the flow-blocking wall lower surfaces (311), the flow-blocking wall lower surfaces (311) and the flow-blocking wall upper surfaces (312) form a strip-shaped barrier (9) in the coolant flow channel, and the plurality of barriers (9) form the coolant flow channel into a serpentine channel, and the inlet groove (309) and the outlet groove (310) are respectively connected to two ends of the serpentine channel; The first plate (301) and the second plate (302) are each provided with two corner holes (313), and the two corner holes (313) are located at opposite corners of the plate group (3); The collecting device comprises a recovery container, on which a plurality of equipment recovery ports and a plurality of equipment distribution ports are provided, a confluence hopper (5) is provided at the bottom of the recovery container, the bottom of the confluence hopper (5) is connected to the inlet slots (309) of a plurality of plate groups (3) through an upper confluence pipe (501), and the outlet slots (310) of the plurality of plate groups (3) are connected to the recovery container through a lower confluence pipe (6) and a pipeline.

2. A heat exchanger for a cooling water tower according to claim 1, characterized in that: The heat exchanger body (1) further comprises two end tubes (7), wherein the end tubes (7) are fixed on the front end plate (2), and the two corner holes (313) of the plate groups (3) respectively form an inlet channel and an outlet channel, and the two end tubes (7) are respectively connected to the inlet channel and the outlet channel.

3. A heat exchanger for a cooling water tower according to claim 2, characterized in that: A refrigerant flow channel is formed between two adjacent plate groups (3), and the inlet channel and the outlet channel are both in communication with the refrigerant flow channel.

4. The heat exchanger used in a cooling water tower according to claim 1, characterized in that: The heat exchanger body (1) is arranged below the recovery container, the inlet groove (309) of the heat exchanger body (1) faces upward, and the end pipe (7) close to the recovery container is the end pipe (7) of the outlet channel.

5. The heat exchanger used in a cooling water tower according to claim 1, characterized in that: The lower surface (311) of the flow-blocking wall is parallel to the length direction of the first plate (301), and a short interval and a long interval are formed between the two ends of the barrier (9) and the two width edges of the first plate (301), respectively, and the long interval is the turning point of the serpentine channel.

6. A heat exchanger for a cooling water tower according to claim 5, characterized in that: A plurality of sealing blocks (8) are fixed on the second plate (302), and the sealing blocks (8) are fixed in short intervals.

Images