Tubular oil cooler

Abstract

The utility model discloses a tube nest type oil cooler which comprises two cooling devices distributed in parallel, the two cooling devices are fixedly connected through a fixing seat and communicated with each other through a three-way valve, each cooling device comprises a medium tank body, a plurality of tube bundles are arranged in each medium tank body, and the tube bundles are arranged in the medium tank bodies. The two ends of each tube bundle are connected with the medium tank body through end plates respectively, a circulation cavity is formed in each tube bundle, a heat exchange liquid inlet and a heat exchange liquid outlet are formed in the medium tank body, and the heat exchange liquid inlets and the heat exchange liquid outlets are both communicated with the circulation cavities; according to the multi-medium cooling device, the two medium tank bodies are arranged in parallel, so that when one medium tank body runs, the other medium tank body can be internally cooled to be used next time, alternate use of the two medium tank bodies can be achieved, and the multi-medium cooling speed of the medium tank bodies is increased; and a heat exchange liquid inlet and a heat exchange liquid outlet communicated with the heat exchange liquid inlet are formed in the medium tank body.

Description

Technical Field

[0001] The utility model belongs to the technical field of coolers, and in particular relates to a tube-in-tube oil cooler. Background Art

[0002] Most of the existing shell-and-tube oil coolers store the medium statically or replace the heat of the medium with a heat exchange liquid. However, the fluidity of the heat transfer liquid is poor and the cooling time of the medium is long, resulting in low heat exchange efficiency of the medium. In addition, the existing cooler has a complex structure and it is inconvenient to disassemble and assemble the parts. During multiple maintenance, the wear between the parts is accelerated, and the service life of the equipment is short. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the utility model aims to provide a shell and tube type oil cooler.

[0004] The technical solution adopted by the utility model is as follows: it comprises two cooling devices distributed in parallel, the two cooling devices are fixedly connected by a fixing seat, and are communicated with each other by a three-way valve, the cooling device comprises a medium tank body, a plurality of tube bundles are arranged inside the medium tank body, the two ends of the plurality of tube bundles are respectively connected to the medium tank body through end plates, a circulation cavity is formed inside the tube bundle, a heat exchange liquid inlet and a heat exchange liquid outlet are arranged on the medium tank body, and the heat exchange liquid inlet and the heat exchange liquid outlet are both communicated with the circulation cavity.

[0005] As a preferred embodiment of the utility model, a plurality of heat exchange liquid inlets are provided along the length direction of the medium tank body, the plurality of heat exchange liquid inlets are equidistantly distributed, and each of the heat exchange liquid inlets is provided with a liquid inlet valve for controlling the connection between the heat exchange liquid inlet and the circulation chamber.

[0006] As a preferred embodiment of the utility model, a plurality of heat exchange liquid outlets are provided along the length direction of the medium tank body, the plurality of heat exchange liquid outlets are equidistantly distributed, and each of the heat exchange liquid outlets is provided with a liquid outlet valve for controlling the connection between the heat exchange liquid outlet and the circulation chamber.

[0007] As a preferred embodiment of the present invention, the heat exchange liquid inlet and the heat exchange liquid outlet are vertically and symmetrically distributed on the peripheral surface of the medium tank body.

[0008] As a preferred embodiment of the utility model, both of the medium tanks are provided with connecting pipes, the connecting pipes are connected to the inner cavity of the medium tanks, the first port and the second port of the three-way valve are respectively connected to one of the connecting pipes, the third port of the three-way valve forms a confluence, and the three-way valve is used to control the connection between the two cooling devices.

[0009] As a preferred embodiment of the utility model, a medium inlet and a medium outlet are provided at one end of the medium tank body, both of which are connected to the inner cavity of the medium tank body, and a control valve is provided on the medium inlet, which controls the connection between the medium inlet and the inner cavity of the medium tank body.

[0010] As a preferred embodiment of the present invention, a pressure relief valve is provided on the medium tank body, and the pressure relief valve is located at one side of the medium inlet and is communicated with the inner cavity of the medium tank body.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model is a tubular oil cooler, which adopts a double structure. By arranging two medium tanks in parallel, it is ensured that when one of the medium tanks is in operation, the other can cool down its internal part to prepare for the next use, so that the two medium tanks can be used alternately, and the speed of multi-medium cooling of the medium tank is improved. Specifically, a heat exchange liquid inlet and a heat exchange liquid outlet connected to the heat exchange liquid inlet are arranged on the medium tank, and heat exchange liquid is injected into the heat exchange liquid inlet. The heat exchange liquid forms a circulation flow inside the medium tank, and the wall of the tube bundle contacts the medium flowing inside the medium tank, and takes away the heat of the medium, so as to realize the cooling of the medium. Specifically, a plurality of heat exchange liquid inlets and heat exchange liquid outlets are arranged along the length of the medium tank, so that the medium tank is divided into three sections for heat dissipation, thereby increasing the inlet amount and inlet position of the heat exchange liquid, and increasing the cooling zone speed of the medium.

[0013] 2. Fix the two cooling devices with fixed seats, and the three-way valve and related valves are fixed with fixed seats.

[0014] The flange is connected to the medium tank body, which reduces the difficulty of disassembly during equipment maintenance and allows cleaning of impurities in the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0018] Figure 3 This utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0019] Figure 4 It is a side sectional structural diagram of the utility model.

[0020] In the figure: 1. cooling device; 2. fixing seat; 3. three-way valve; 11. medium tank; 12. tube bundle; 111. end plate; 112. heat exchange liquid inlet; 113. heat exchange liquid outlet; 121. circulation chamber; 114. medium inlet; 115. medium outlet; 116. pressure relief valve; 117. connecting pipe; 1121. liquid inlet valve; 1131. liquid outlet valve; 1141. control valve. Implementation

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Combine the following Figure 1-4The specific implementation mode of the utility model is described as a tube-in-tube oil cooler, comprising two cooling devices 1 distributed in parallel. By setting a medium tank 11 in a double-connected manner, the two cooling devices 1 can be used alternately to avoid the long-term use of the same cooling device 1 affecting the service life. In addition, when one of the cooling devices 1 is working, the other can dissipate heat to the internal wall and tube parts to prepare for the next use. The alternating use of the two cooling devices 1 can shorten the cooling time of the medium in comparison with the long-term use of the same cooling device 1, and effectively improve the cooling efficiency of the medium. The two cooling devices 1 are fixedly connected by a fixing seat 2, and the two medium tanks 11 are installed in parallel on the fixing seat 2 through the fixing seat 2. The two cooling devices 1 are interconnected by a three-way valve 3. When processing the medium, the flow of the medium between the two cooling devices 1 can be realized to achieve effective control of the cooling of the medium. At the same time, when the medium is discharged urgently, the two cooling devices 1 can be simultaneously controlled by the three-way valve 3. The medium in the device 1 is discharged, thereby improving the discharge efficiency of the medium; the cooling device 1 includes a medium tank body 11, a plurality of tube bundles 12 are arranged inside the medium tank body 11, and the two ends of the plurality of tube bundles 12 are connected to the medium tank body 11 through end plates 111 respectively, forming a circulation cavity 121 inside the tube bundle 12, and a heat exchange liquid inlet 112 and a heat exchange liquid outlet 113 are arranged on the medium tank body 11, and the heat exchange liquid inlet 112 and the heat exchange liquid outlet 113 are both connected to the circulation cavity 121. By injecting low-temperature heat exchange liquid into the circulation cavity 121 from the heat exchange liquid inlet 112, the heat exchange liquid enters the circulation cavity 121, and the temperature of the heat exchange liquid contacts the medium flowing inside the medium tank body 11 through the tube wall of the tube bundle 12, so as to cool the medium. Among them, a plurality of tube bundles 12 are arranged inside the medium tank body 11, and the pressure of the heat exchange liquid injected through the heat exchange liquid inlet 112 between the plurality of tube bundles 12 is realized to realize the flow of the heat exchange liquid in the circulation cavity 121, take away the heat of the medium, and realize the cooling of the medium.

[0024] Advantageously, a plurality of heat exchange liquid inlets 112 are provided along the length direction of the medium tank body 11, and the plurality of heat exchange liquid inlets 112 are equidistantly distributed. Each of the heat exchange liquid inlets 112 is provided with a liquid inlet valve 1121 for controlling the connection between the heat exchange liquid inlet 112 and the circulation chamber 121. In the present embodiment, a heat exchange liquid inlet 112 is provided at both ends and the center of the medium tank body 11, respectively. Each heat exchange liquid inlet 112 is provided with a liquid inlet valve 1121 for controlling the injection of heat exchange liquid. One end of the heat exchange liquid inlet 112 is connected to the circulation chamber 121 in the medium tank body 11, and the other end is connected to the heat exchange liquid delivery pipeline.

[0025] Advantageously, the heat exchange liquid outlet 113 is provided with a plurality of outlets 113 along the length direction of the medium tank 11, and the plurality of outlets 113 are equidistantly distributed, and each outlet 113 is provided with a liquid outlet valve 1131 for controlling the heat exchange liquid outlet 113 to communicate with the circulation cavity 121. In this embodiment, the number of the heat exchange liquid outlets 113 corresponds to the number of the heat exchange liquid inlets 112 to improve the cooling effect on the medium.

[0026] Advantageously, the heat exchange liquid inlet 112 and the heat exchange liquid outlet 113 are symmetrically distributed on the circumference of the medium tank body 11. By distributing the heat exchange liquid inlet 112 and the heat exchange liquid outlet 113 laterally along the circumference of the medium tank body 11, the fluidity of the heat exchange liquid inside the medium tank body 11 is enhanced to improve the cooling effect on the medium.

[0027] Advantageously, both of the two medium tank bodies 11 are provided with a connecting pipe 117, and the connecting pipe 117 is connected to the inner cavity of the medium tank body 11, and the first port and the second port of the three-way valve 3 are respectively connected to one of the connecting pipes 117, and the third port of the three-way valve 3 forms a confluence 118. The three-way valve 3 is used to control the connection between the two cooling devices 1, and the three-way valve 3 is used for the connection between the two medium tank bodies 11, wherein the upper end of the connecting pipe 117 is connected to the inner cavity of the medium tank body 11, and the other end corresponds to a port on the three-way valve 3, and the third port on the three-way valve 3 forms a confluence 118, which is used for the emergency discharge outlet of the medium inside the two medium tank bodies 11.

[0028] Advantageously, a medium inlet 114 and a medium outlet 115 are provided at one end of the medium tank body 11, and the medium inlet 114 and the medium outlet 115 are both connected to the inner cavity of the medium tank body 11. A control valve 1141 is provided on the medium inlet 114, and the control valve 1141 controls the connection between the medium inlet 114 and the inner cavity of the medium tank body 11. By injecting the medium from the medium inlet 114 into the inner cavity of the medium tank body 11, a flow is formed inside the medium, and the heat of the medium is taken away by the circulation of the heat exchange liquid flowing inside the circulation cavity 121, thereby cooling the medium.

[0029] Advantageously, a pressure relief valve 116 is provided on the medium tank body 11. The pressure relief valve 116 is located on one side of the medium inlet 114 and is connected to the inner cavity of the medium tank body 11. When the cooling device 1 is working, the pressure in the inner cavity of the tube body is prevented from being too high. The pressure inside is relieved by opening the pressure relief valve 116 to ensure the normal operation of the equipment.

[0030] Working principle of this utility model:

[0031] The medium inlet 114 is connected to the medium input pipe body, the medium outlet 115 is connected to the medium output pipe body, the heat exchange liquid inlet 112 is connected to the heat exchange liquid input pipe body, and the heat exchange liquid outlet 113 is connected to the heat exchange liquid output pipe body, wherein, when cooling, the two cooling devices 1 are used alternately;

[0032] Open the control valve 1141 on the medium inlet 114 to allow the medium to enter the inner cavity of the medium tank 11, open the liquid inlet valve 1121 on the liquid inlet valve 1121 to allow the low-temperature heat exchange liquid to enter the circulation cavity 121, and allow the heat exchange liquid to pass through the peripheral wall of the tube bundle 12 and contact with the medium, so that the flowing heat exchange liquid takes away the heat in the medium and is guided out of the cooling device 1 through the heat exchange liquid outlet 113, and the cooled medium finally flows to the medium outlet 115 and is discharged from the cooling device 1;

[0033] The cooling of the cold zone of the medium can be achieved by introducing the medium multiple times and injecting heat exchange liquids of different temperatures. In actual use, the service life of the cooling device 1 is effectively improved by alternating the two cooling devices 1. At the same time, a single cooling device 1 can be disassembled, cleaned and maintained.

[0034] The two medium tanks 11 are connected via a three-way valve 3 , and a confluence port 118 is formed on one of the ports of the three-way valve 3 . The confluence port 118 is used to discharge the medium in the two medium tanks 11 to cope with emergency failures of the equipment.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A tube-in-tube oil cooler, characterized in that: It comprises two cooling devices distributed in parallel, which are fixedly connected by a fixing seat and communicated with each other by a three-way valve, wherein the cooling device comprises a medium tank body, wherein a plurality of tube bundles are arranged inside the medium tank body, and the two ends of the plurality of tube bundles are respectively connected to the medium tank body by end plates, so that a circulation cavity is formed inside the tube bundle, and a heat exchange liquid inlet and a heat exchange liquid outlet are arranged on the medium tank body, and the heat exchange liquid inlet and the heat exchange liquid outlet are both communicated with the circulation cavity.

2. A shell and tube oil cooler according to claim 1, characterized in that: The heat exchange liquid inlet is provided with a plurality of heat exchange liquid inlets along the length direction of the medium tank body, and the plurality of heat exchange liquid inlets are equidistantly distributed. Each of the heat exchange liquid inlets is provided with a liquid inlet valve for controlling the heat exchange liquid inlet to be connected with the circulation cavity.

3. A shell and tube oil cooler according to claim 2, characterized in that: The heat exchange liquid outlets are provided in plurality along the length direction of the medium tank body, the plurality of heat exchange liquid outlets are equidistantly distributed, and each of the heat exchange liquid outlets is provided with a liquid outlet valve for controlling the heat exchange liquid outlet to communicate with the circulation cavity.

4. A shell and tube oil cooler according to claim 3, characterized in that: The heat exchange liquid inlet and the heat exchange liquid outlet are symmetrically distributed on the peripheral surface of the medium tank body.

5. The shell-and-tube oil cooler according to claim 1, characterized in that: Both of the medium tanks are provided with connecting pipes, which are connected to the inner cavity of the medium tanks. The first port and the second port of the three-way valve are respectively connected to one of the connecting pipes. The third port of the three-way valve forms a confluence. The three-way valve is used to control the connection between the two cooling devices.

6. The shell-and-tube oil cooler according to claim 5, characterized in that: A medium inlet and a medium outlet are provided at one end of the medium tank body, and both the medium inlet and the medium outlet are communicated with the inner cavity of the medium tank body. A control valve is provided on the medium inlet, and the control valve controls the communication between the medium inlet and the inner cavity of the medium tank body.

7. The shell-and-tube oil cooler according to claim 6, characterized in that: The medium tank body is provided with a pressure relief valve, which is located at one side of the medium inlet and communicated with the inner cavity of the medium tank body.

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