Freezing dryer energy-saving heat exchange structure used based on oil and gas field

Abstract

The utility model relates to the technical field of freezing dryers, in particular to a freezing dryer energy-saving heat exchange structure based on oil and gas fields, which comprises a machine body provided with a shell and tube evaporator and a plate-fin heat exchanger, an inlet and outlet pipe is arranged on the shell and tube evaporator, and an outer connector pipe corresponding to the inlet and outlet pipe is arranged on the plate-fin heat exchanger. A butt joint tool is arranged between the inlet and outlet pipe and the outer connector pipe. The shell-and-tube evaporator and the plate-fin heat exchanger are arranged in the machine body in a matched mode, the inlet and outlet pipe and the outer connector pipe which correspond to each other are arranged on the shell-and-tube evaporator and the plate-fin heat exchanger respectively, and the butt joint tool is arranged between the shell-and-tube evaporator and the plate-fin heat exchanger. The first-stage condenser, the compressor, the second-stage condenser, the gas-liquid separator and the liquid storage device which are used in cooperation with the shell and tube evaporator and the plate-fin heat exchanger are arranged on the machine body, so that the refrigeration dryer can achieve efficient cooling treatment under the action of the double condensers, and therefore refrigeration drying treatment with higher efficiency and higher level is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold dryer technical field especially relates to a cold dryer energy -conserving heat exchange structure based on oil and gas field uses. BACKGROUND

[0002] Utilize refrigerant and compressed air to carry out heat exchange, make the dew point temperature of compressed air temperature to 2-10 DEG C range, make the water vapor in compressed air condense into liquid drop, then through automatic drainage system and export machine, thereby reach the purpose of reducing the moisture content of compressed air. Heat exchange structure as the most key component part in cold dryer, has decisive influence effect to the refrigeration of cold dryer.

[0003] The existing heat exchange structure such as the heat exchange structure of the vacuum freeze dryer disclosed in the announcement number CN211346494U, the rubber plug in the water pipe is intercepted by the limiting sleeve, the convenience of the device is improved, and the first connecting plate is pushed by the push rod, the first connecting plate makes the spring elastically deformed, and the first connecting plate bottom end button is moved out from the circular hole on the surface of the push rod. However, the heat exchange structure involves a large number of components, and complex assembly connection is required. The single flange and threaded head connection structure leads to the problem that the connection between the pipes is prone to looseness or even falling off. Moreover, due to the complexity of the internal conveying medium, the sealing performance of the connection structure cannot be guaranteed. Especially after the single-layer connection structure is worn out, it is easy to cause structural damage and medium leakage accidents, which not only affects the use of the cold dryer, but also seriously threatens the safety of the application environment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem that the heat exchange structure is difficult to assemble and connect in the prior art, and proposes a cold dryer energy-saving heat exchange structure based on oil and gas field use.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A cold dryer energy-saving heat exchange structure based on oil and gas field use, comprising a machine body provided with a shell-and-tube evaporator and a plate-fin heat exchanger, the shell-and-tube evaporator is provided with an inlet and outlet pipe, the plate-fin heat exchanger is provided with an external interface pipe corresponding to the inlet and outlet pipe, and a butt joint tool is arranged between the inlet and outlet pipe and the external interface pipe.

[0007] Preferably, the number of inlet and outlet pipes and external interface pipes is two, and one inlet and outlet pipe and one external interface pipe horizontally correspond at the same side position.

[0008] Preferably, the docking tool comprises a threaded port in the inlet and outlet pipe, a cross elastic piece movably sleeved in the threaded port and extending into the inlet and outlet pipe, and a limiting clamping key movably sleeved in the threaded port and extending into the inlet and outlet pipe;

[0009] The docking tool further comprises a synchronous turntable rotatably installed in the outer interface pipe, a damper fixedly installed on the synchronous turntable, a sealing rubber ring movably sleeved in the outer interface pipe and fixedly connected to the damper, an inner pipe fixedly sleeved in the sealing rubber ring and extending into the inlet and outlet pipe, a threaded sleeve integrally sleeved on the inner pipe and movably abutting against the cross elastic piece, and a limiting ring groove formed in the outer wall of the inner pipe and corresponding to the limiting clamping key.

[0010] Preferably, the cross elastic pieces and the limiting clamping keys are circumferentially equidistantly distributed one by one, and a traction connecting rod is connected between the cross elastic piece and the limiting clamping key through a pin shaft.

[0011] Preferably, the number of the dampers is four, and the four dampers are circumferentially equidistantly distributed.

[0012] Preferably, the inlet and outlet pipe and the outer interface pipe are integrally connected with a first flange plate and a second flange plate, respectively.

[0013] Preferably, the machine body is further provided with a primary condenser, a compressor, a secondary condenser, a gas-liquid separator and a liquid reservoir which are used in cooperation with the shell and tube evaporator and the plate-fin heat exchanger.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model discloses a primary condenser, a compressor, a secondary condenser, a gas-liquid separator and a liquid reservoir which are used in cooperation with the shell and tube evaporator and the plate-fin heat exchanger.

[0016] 2. The utility model discloses a primary condenser, a compressor, a secondary condenser, a gas-liquid separator and a liquid reservoir which are used in cooperation with the shell and tube evaporator and the plate-fin heat exchanger. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of the energy-saving heat exchange structure of the cold dryer based on oil and gas field is provided.

[0018] Figure 2 A bottom view of the energy-saving heat exchange structure of the cold dryer based on oil and gas field use is provided in the utility model;

[0019] Figure 3 A sectional view of the energy-saving heat exchange structure of the cold dryer based on oil and gas field use is provided in the utility model;

[0020] Figure 4 An enlarged schematic view of the A part structure of the energy-saving heat exchange structure of the cold dryer based on oil and gas field use is provided in the utility model;

[0021] Figure 5 A schematic view of the machine body structure of the energy-saving heat exchange structure of the cold dryer based on oil and gas field use is provided in the utility model.

[0022] In the figure: 1, machine body; 2, shell and tube evaporator; 3, inlet and outlet pipe; 4, external interface pipe; 5, butt joint tool; 51, threaded port; 52, cross elastic member; 53, limit key; 54, traction connecting rod; 55, synchronous turntable; 56, damper; 57, sealing rubber ring; 58, inner pipe; 59, threaded sleeve; 510, limit ring groove; 511, first flange plate; 512, second flange plate; 6, primary condenser; 7, plate-fin heat exchanger; 8, compressor; 9, secondary condenser; 10, gas-liquid separator; 11, liquid accumulator. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Referring to Figures 1-5 An energy-saving heat exchange structure of a cold dryer based on oil and gas field use comprises a machine body 1 provided with a shell and tube evaporator 2 and a plate-fin heat exchanger 7, the shell and tube evaporator 2 is provided with an inlet and outlet pipe 3, the plate-fin heat exchanger 7 is provided with an external interface pipe 4 corresponding to the inlet and outlet pipe 3, and specific reference is made to the description of the accompanying drawings Figure 5 The completeness of the heat exchange structure is realized by assembling and connecting the inlet and outlet pipe 3 and the external interface pipe 4, so that the cold and hot medium is in contact in the machine body 1 of the cold dryer, thereby achieving cold and dry processing.

[0025] The butt joint tool 5 is arranged between the inlet and outlet pipe 3 and the external interface pipe 4, and specific reference is made to the description of the accompanying drawings Figure 3 and the accompanying drawings Figure 4The docking tool 5 comprises a threaded port 51 opened in the inlet and outlet pipe 3, a cross elastic element 52 movably sleeved in the threaded port 51 and extending into the inlet and outlet pipe 3, a limiting clamping key 53 pivotally installed in the inlet and outlet pipe 3 and movably pulled by the cross elastic element 52, the cross elastic elements 52 and the limiting clamping keys 53 are circumferentially equidistantly distributed in one-to-one correspondence, and a pulling connecting rod 54 is pivotally connected between the cross elastic element 52 and the limiting clamping key 53. It should be noted that the number of cross elastic elements 52 and limiting clamping keys 53 can be designed to be 2-4, and the cross elastic element 52 maintains the tendency to extend out of the inlet and outlet pipe 3 under the supporting action of the strong spring. When the inner pipe 58 is pushed into the inlet and outlet pipe 3, the cross elastic element 52 is pressed by the threaded sleeve 59, and the limiting clamping key 53 is pressed by the cross elastic element 52. The L-shaped limiting clamping key 53 is clamped in the limiting ring groove 510 in the closed state to further limit and fix the inner pipe 58 sleeved in the inlet and outlet pipe 3.

[0026] The docking tool 5 further comprises a synchronous turntable 55 rotatably installed in the outer interface pipe 4, a damper 56 fixedly installed on the synchronous turntable 55, a sealing rubber ring 57 movably sleeved in the outer interface pipe 4 and fixedly connected to the damper 56, the sealing rubber ring 57 is supported by hard silica stone and flexible rubber material, which can press the damper 56 and ensure the sealing property in the process of contacting with the inner wall of the outer interface pipe 4, so as to avoid large gap space during the spiral movement of the inner pipe 58 along the outer interface pipe 4. The inner pipe 58 is fixedly sleeved in the sealing rubber ring 57 and extends into the inlet and outlet pipe 3, the inner pipe 58 is integrally sleeved with a threaded sleeve 59 corresponding to the threaded port 51 and movably abutting against the cross elastic element 52, the outer wall of the inner pipe 58 is provided with a limiting ring groove 510 corresponding to the limiting clamping key 53, the threaded connection between the threaded sleeve 59 and the threaded port 51 realizes the preliminary limiting of the inner pipe 58, and the limiting clamping key 53 is used for the secondary fixing of the inner pipe 58. In this case, the connecting position between the two is sleeved with thermal insulation cotton, and the locking between the first flange plate 511 and the second flange plate 512 is used to further improve the connection firmness and sealing property between the inlet and outlet pipe 3 and the outer interface pipe 4.

[0027] The number of the inlet and outlet pipes 3 and the outer interface pipes 4 is two, and one inlet and outlet pipe 3 and one outer interface pipe 4 horizontally correspond at the same side position. The machine body 1 is further provided with a first condenser 6, a compressor 8, a second condenser 9, a gas-liquid separator 10 and a liquid reservoir 11 which are used in cooperation with the shell and tube evaporator 2 and the plate-fin heat exchanger 7. Similarly, corresponding inlet and outlet pipes 3 and outer interface pipes 4 are arranged on the first condenser 6, the compressor 8, the second condenser 9, the gas-liquid separator 10 and the liquid reservoir 11 to realize the assembly connection therebetween, so as to provide a convenient assembly connection relationship for the cold dryer machine body 1.

[0028] The dampers 56 are four in number and are equidistantly distributed circumferentially.

[0029] The import and export pipe 3 and the outer interface pipe 4 are integrally connected with the first flange plate 511 and the second flange plate 512 respectively, and when the import and export pipe 3 and the outer interface pipe 4 are assembled and connected through the inner pipe 58, the first flange plate 511 and the second flange plate 512 are corresponded, and the bolts and nuts are arranged between the corresponding locking holes to further lock the import and export pipe 3 and the outer interface pipe 4.

[0030] It should be noted that the specific model and specification of the machine body 1 need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it is not described in detail.

[0031] The utility model can be described by the following operation mode to explain its function principle:

[0032] When the import and export pipe 3 and the outer interface pipe 4 need to be assembled and connected, the inner pipe 58 is spirally pushed into the import and export pipe 3;

[0033] The inner pipe 58 pressurizes the damper 56 through the sealing rubber ring 57, and simultaneously drives the synchronous turntable 55 to rotate in the outer interface pipe 4;

[0034] The inner pipe 58 drives the threaded sleeve 59 to be screwed with the threaded port 51, the threaded sleeve 59 pressurizes the cross elastic piece 52, the cross elastic piece 52 retracted in the import and export pipe 3 pressurizes the limiting clamping key 53 through the traction connecting rod 54, so that the deflected limiting clamping key 53 is clamped with the limiting ring groove 510;

[0035] The first flange plate 511 and the second flange plate 512 are corresponded, and the bolts and nuts are used to lock and fix them, so as to realize the assembly connection between the import and export pipe 3 and the outer interface pipe 4.

[0036] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. An energy-saving heat exchange structure for a cold dryer used in an oil and gas field, comprising a body (1) provided with a shell-and-tube evaporator (2) and a plate-fin heat exchanger (7), characterized in that, The shell and tube evaporator (2) is provided with an inlet and outlet pipe (3), the plate-fin heat exchanger (7) is provided with an external interface pipe (4) corresponding to the inlet and outlet pipe (3), and the inlet and outlet pipe (3) and the external interface pipe (4) are provided with a butt joint tool (5).

2. The energy-saving heat exchange structure of a cold dryer used in an oil and gas field according to claim 1, characterized in that, The number of the inlet and outlet pipe (3) and the external interface pipe (4) is two, and one inlet and outlet pipe (3) and one external interface pipe (4) are horizontally corresponding.

3. The energy-saving heat exchange structure of a cold dryer based on oil and gas fields according to claim 1, characterized in that: The butt joint tool (5) comprises a threaded port (51) opened in the inlet and outlet pipe (3), a cross elastic element (52) movably sleeved in the threaded port (51) and extending into the inlet and outlet pipe (3), and a limiting key (53) movably pulled by the cross elastic element (52) and installed in the inlet and outlet pipe (3) through a pin shaft; The butt joint tool (5) further comprises a synchronous turntable (55) rotatably installed in the external interface pipe (4), a damper (56) fixedly installed on the synchronous turntable (55), a sealing rubber ring (57) movably sleeved in the external interface pipe (4) and fixedly connected to the damper (56), an inner tube (58) fixedly sleeved in the sealing rubber ring (57) and extending into the inlet and outlet pipe (3), a threaded sleeve (59) integrally sleeved on the inner tube (58) and movably abutting against the cross elastic element (52), and a limiting ring groove (510) opened in the outer wall of the inner tube (58) and corresponding to the limiting key (53).

4. The energy-saving heat exchange structure of a cold dryer used in an oil and gas field according to claim 3, characterized in that, The cross elastic element (52) and the limiting key (53) are circumferentially equidistantly distributed one by one, and a traction connecting rod (54) is connected between the cross elastic element (52) and the limiting key (53) through a pin shaft.

5. The energy-saving heat exchange structure of a cold dryer used in oil and gas fields according to claim 3, characterized in that, The number of the damper (56) is four, and the four dampers (56) are circumferentially equidistantly distributed.

6. The energy-saving heat exchange structure of a cold dryer used in an oil and gas field according to claim 3, characterized in that, The inlet and outlet pipe (3) and the external interface pipe (4) are respectively integrally connected with a first flange plate (511) and a second flange plate (512) matched with each other.

7. The energy-saving heat exchange structure of a cold dryer used in an oil and gas field according to claim 1, characterized in that, The machine body (1) is further provided with a primary condenser (6), a compressor (8), a secondary condenser (9), a gas-liquid separator (10) and a liquid accumulator (11) used in cooperation with the shell and tube evaporator (2) and the plate-fin heat exchanger (7).

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