Low-temperature heat exchanger for natural gas liquefaction treatment

Abstract

The utility model relates to the technical field of low-temperature heat exchangers, and discloses a low-temperature heat exchanger for natural gas liquefaction treatment, which comprises heat exchanger equipment, the left end of the heat exchanger equipment is fixedly connected with a cleaning mechanism, and the top of the cleaning mechanism is fixedly connected with a dismounting mechanism; the cleaning mechanism comprises a T-shaped seat, the T-shaped seat is fixedly connected to the left end of the heat exchanger equipment, supporting plates are fixedly connected to the front end and the rear end of the left side of the T-shaped seat correspondingly, motor electric poles are fixedly connected to the surfaces of the supporting plates, a round plate is fixedly connected to one end of each motor electric pole, and a round rod is fixedly connected to one end of the surface of each round plate. A hollowed-out plate is arranged on the surface of the round rod. According to the low-temperature heat exchanger for natural gas liquefaction treatment, through the arrangement of the cleaning mechanism, circulation of the filter screen can be guaranteed, the situation that corresponding impurities are generated when fluid circulates, and the interior of the heat exchanger is blocked is avoided, and then the low-temperature heat exchange efficiency of natural gas in the liquefaction treatment process is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature heat exchanger technical field, concretely is a low temperature heat exchanger for natural gas liquefaction treatment. BACKGROUND

[0002] Natural gas liquefaction low temperature heat exchanger is the low temperature heat exchanger used in natural gas liquefaction treatment, and in the natural gas liquefaction process, the low temperature heat exchanger exchanges heat with refrigerant, and natural gas is cooled to below-162 DEG C, thereby realizing liquefaction, wherein mainly heat exchange is carried out through the fluid in the heat exchanger.

[0003] According to the announcement number CN216080362U discloses a kind of liquefied natural gas heat exchange equipment, belong to heat exchange technical field, including cylinder, support frame and hang box, support frame is equipped with two, and two support frames are respectively fixedly connected on the left and right sides of the lower end of cylinder, hang box is equipped with two, and two hang boxes are respectively fixedly connected on the left and right sides of the surface of cylinder, the left side of cylinder is connected with the gas inlet pipe.

[0004] The liquefied natural gas heat exchange equipment, although the heat can be dispersed uniformly in the cylinder during the heat exchange operation process, the heat exchange effect is improved, and the density of the mixture of heat and gas is more balanced, but the fluid will produce corresponding impurities during circulation and cause blockage in the heat exchanger, which affects the low-temperature heat exchange efficiency of natural gas during liquefaction process, so the device needs to be improved accordingly. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of low temperature heat exchanger for natural gas liquefaction treatment to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of low temperature heat exchanger for natural gas liquefaction treatment, including heat exchanger equipment, the left end of the heat exchanger equipment is fixedly connected with cleaning mechanism, the top of the cleaning mechanism is fixedly connected with dismounting mechanism;

[0007] The cleaning mechanism includes T-shaped seat, the T-shaped seat is fixedly connected to the left end of heat exchanger equipment, the left side of the T-shaped seat is fixedly connected with support plate before and after respectively, the surface of the support plate is fixedly connected with motor electric pole, one end of the motor electric pole is fixedly connected with round plate, one end of the surface of the round plate is fixedly connected with round rod, the surface of the round rod is provided with hollow plate, the left side of the T-shaped seat is fixedly connected with limit rod, the right side of the hollow plate is fixedly connected with connecting strip, the surface of the connecting strip is provided with sealing cylinder, the right end of the connecting strip is fixedly connected with hammer, the left side of the T-shaped seat is fixedly connected with connecting pipe in the middle.

[0008] Preferably, the hollow plate top end is internally provided with a circular hole, and the surface of the limiting rod is slidably connected with the circular hole, so that the limiting rod can slide in the circular hole.

[0009] Preferably, the surface of the hollow plate is provided with a hollow groove, and the surface of the circular rod is located in the hollow groove.

[0010] Preferably, the T-shaped seat left end is internally provided with a circular hole, the surface of the sealing cylinder is fixedly connected with the inside of the circular hole, and the surface of the connecting strip is tightly attached to the inside of the sealing cylinder, so that the connecting strip can move in the sealing cylinder.

[0011] Preferably, the dismounting mechanism comprises an L-shaped seat, the L-shaped seat is fixedly connected to the top of the T-shaped seat, a first spring is fixedly connected in the L-shaped seat, one end of the first spring is fixedly connected with a limiting plate, a long rod is fixedly connected in the limiting plate, a clamping block is fixedly connected to the left end of the long rod, a pushing strip is fixedly connected to the right end of the long rod, an arc-shaped clamping strip is fixedly connected to the bottom end of the pushing strip, a base is arranged at the inside bottom end of the T-shaped seat, an installation frame is arranged in the base, a filter screen is fixedly connected in the installation frame, sliding blocks are fixedly connected to the two ends of the base, a second spring is fixedly connected to the top of each sliding block, the top of the second spring is fixedly connected with the inside top end of the T-shaped seat, a top base is fixedly connected to the top of the installation frame, a rectangular hole is formed in the inside bottom end of the L-shaped seat, and the surface of the arc-shaped clamping strip is matched with the inside of the arc-shaped hole.

[0012] Preferably, a cavity is formed in the T-shaped seat, and a sliding groove is formed at each of the front and back ends of the cavity.

[0013] Preferably, a limiting groove is formed in the L-shaped seat, the surface of the limiting plate is slidably connected with the inside of the limiting groove, and a bayonet is formed at each of the front and back ends of the top base, the surface of the clamping block is matched with the inside of the bayonet, so that the clamping block can be clamped in the bayonet.

[0014] Compared with the prior art, the low-temperature heat exchanger for natural gas liquefaction treatment has the following beneficial effects:

[0015] 1. The low-temperature heat exchanger for natural gas liquefaction treatment, by means of the cleaning mechanism, the circular rod drives the hollow plate to reciprocate in the left and right directions under the limiting action of the limiting rod, and drives the connecting strip to move in the sealing cylinder, so as to drive the hammer to continuously knock the filter screen, and knock the impurities on the right side of the filter screen into the trough on the right side of the base, thereby ensuring the flow of the filter screen, avoiding the generation of corresponding impurities when the fluid flows, and avoiding the blockage of the heat exchanger, and further ensuring the low-temperature heat exchange efficiency of the natural gas in the liquefaction process.

[0016] 2. The low-temperature heat exchanger for natural gas liquefaction treatment, through the dismounting mechanism, the arc-shaped clamping strip is driven to separate from the L-shaped seat by rotating the poking strip, then the long rod is moved to make the clamping block separate from the top seat, the clamping blocks on both sides of the top seat are moved away, so that the base is moved upward and moves to the top of the T-shaped seat under the elastic action of the second spring, thereby facilitating the deep cleaning of the trough and the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 It is the overall structure of the present application;

[0019] Figure 2 It is the cleaning mechanism of the present application;

[0020] Figure 3 It is the cleaning mechanism of the present application;

[0021] Figure 4 It is the dismounting mechanism of the present application;

[0022] Figure 5 It is the dismounting mechanism of the present application;

[0023] In the figure: 1, heat exchanger equipment; 2, cleaning mechanism; 21, T-shaped seat; 22, support plate; 23, motor rod; 24, round plate; 25, round rod; 26, hollow plate; 261, limiting rod; 27, connecting strip; 28, sealing cylinder; 29, hammer; 291, connecting pipe; 3, dismounting mechanism; 31, L-shaped seat; 32, long rod; 33, poking strip; 34, arc-shaped clamping strip; 35, clamping block; 351, first spring; 352, limiting plate; 353, top seat; 36, base; 37, mounting frame; 38, filter screen; 39, sliding block; 391, second spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements.For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The utility model provides the following technical scheme:

[0027] Embodiment one

[0028] Combined Figures 2 to 5 A low-temperature heat exchanger for natural gas liquefaction treatment, comprising a heat exchanger device 1, the left end of the heat exchanger device 1 is fixedly connected with a cleaning mechanism 2, the top of the cleaning mechanism 2 is fixedly connected with a dismounting mechanism 3;

[0029] The cleaning mechanism 2 comprises a T-shaped seat 21, the T-shaped seat 21 is fixedly connected to the left end of the heat exchanger device 1, the left side of the T-shaped seat 21 is fixedly connected with support plates 22 at the front and rear ends, the surface of the support plate 22 is fixedly connected with a motor electric pole 23, one end of the motor electric pole 23 is fixedly connected with a round plate 24, one end of the surface of the round plate 24 is fixedly connected with a round rod 25, the surface of the round rod 25 is provided with a hollow plate 26, the left side of the T-shaped seat 21 is fixedly connected with a limiting rod 261, the right side of the hollow plate 26 is fixedly connected with a connecting strip 27, the surface of the connecting strip 27 is provided with a sealing cylinder 28, the right end of the connecting strip 27 is fixedly connected with a hammer 29, the left side of the T-shaped seat 21 is fixedly connected with a connecting pipe 291, a circular hole is formed in the top of the hollow plate 26, the surface of the limiting rod 261 is slidably connected with the circular hole, a hollow groove is formed in the surface of the hollow plate 26, and the surface of the round rod 25 is located in the hollow groove.

[0030] Further, a circular hole is formed in the left end of the T-shaped seat 21, the surface of the sealing cylinder 28 is fixedly connected with the inside of the circular hole, the surface of the connecting strip 27 is closely attached to the inside of the sealing cylinder 28, and the round rod 25 drives the hollow plate 26 to reciprocate in the left-right direction under the limiting action of the limiting rod 261 in the hollow plate 26, drives the connecting strip 27 to move in the sealing cylinder 28, and drives the hammer 29 to continuously knock the filter screen 38, so that the impurities on the right side of the filter screen 38 are knocked into the trough on the right side of the base 36, thereby ensuring the flow of the filter screen 38, avoiding the generation of corresponding impurities when the fluid flows, and avoiding the blockage of the heat exchanger, and further ensuring the low-temperature heat exchange efficiency of natural gas in the liquefaction process.

[0031] Embodiment two

[0032] Reference Figures 1-5And on the basis of embodiment one, further get disassembly mechanism 3 including L-shaped seat 31, L-shaped seat 31 is fixedly connected to the top of T-shaped seat 21, first spring 351 is fixedly connected inside L-shaped seat 31, one end of first spring 351 is fixedly connected with limit plate 352, long rod 32 is fixedly connected inside limit plate 352, clamping block 35 is fixedly connected to the left end of long rod 32, lever 33 is fixedly connected to the right end of long rod 32, arc-shaped clamping strip 34 is fixedly connected to the bottom end of lever 33, base 36 is arranged at the bottom end inside T-shaped seat 21, mounting frame 37 is arranged inside base 36, filter screen 38 is fixedly connected inside mounting frame 37, sliding block 39 is fixedly connected to the both ends of base 36, second spring 391 is fixedly connected to the top of sliding block 39, the top of second spring 391 is fixedly connected with the top end inside T-shaped seat 21, top seat 353 is fixedly connected to the top of mounting frame 37, rectangular hole is opened in the bottom end inside L-shaped seat 31, the surface of arc-shaped clamping strip 34 matches with the inside of arc-shaped hole.

[0033] Further, the cavity is opened in the inside of T-shaped seat 21, the sliding grooves are opened in the front and back ends of the cavity, the surface of sliding block 39 is slidingly connected with the inside of sliding groove, the limit slot is opened in the inside of L-shaped seat 31, the surface of limit plate 352 is slidingly connected with the inside of limit slot, the chucks are opened in the front and back ends of top seat 353, the surface of clamping block 35 matches with the inside of chuck, rotating lever 33 drives arc-shaped clamping strip 34 to separate from the inside of L-shaped seat 31, then moving long rod 32 makes clamping block 35 separate from the inside of top seat 353, moving clamping block 35 away from the both sides of top seat 353, thus driving base 36 to move upward and moving base 36 to the top inside T-shaped seat 21 under the elastic effect of second spring 391, thus facilitating the deep cleaning of chute and filter screen 38.

[0034] In the actual operation process, when the device is used, the fluid in the heat exchanger needs to be filtered when flowing through the heat exchanger, and the impurities flow to the filter screen 38 and are blocked, and the chute is opened on the right side of the base 36, when the impurities on the filter screen 38 need to be cleaned, after the fluid in the heat exchanger equipment 1 stops flowing, at this time the motor rod 23 drives the circular plate 24 and the circular rod 25 to rotate, thus driving the circular rod 25 to reciprocate in the left and right directions inside the hollow plate 26 under the limiting action of the limiting rod 261, and driving the connecting strip 27 to move inside the sealing cylinder 28, thus driving the hammer 29 to continuously knock the filter screen 38, and knocking the impurities on the right side of the filter screen 38 to fall into the chute inside the right side of the base 36, thus ensuring the flow of the filter screen 38, and ensuring the low-temperature heat exchange efficiency of natural gas in the liquefaction process;

[0035] When the tank of the base 36 needs to be processed and the filter screen 38 needs to be deeply processed, at this time, the rotating of the shift bar 33 drives the arc-shaped clamping strip 34 to be separated from the inside of the L-shaped seat 31, then the moving of the long rod 32 makes the clamping block 35 separated from the inside of the top seat 353, and the clamping block 35 on both sides of the top seat 353 is moved away, so that the base 36 is driven to move upward under the elastic effect of the second spring 391 and is moved to the top of the T-shaped seat 21, thereby facilitating the deep cleaning of the tank and the filter screen 38.

[0036] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A cryogenic heat exchanger for natural gas liquefaction processes, comprising a heat exchanger device (1), characterized in that: The heat exchanger equipment (1) is fixedly connected with a cleaning mechanism (2) at the left end, and the cleaning mechanism (2) is fixedly connected with a dismounting mechanism (3) at the top. The cleaning mechanism (2) comprises a T-shaped seat (21) fixedly connected to the left end of the heat exchanger equipment (1), support plates (22) fixedly connected to the left side of the T-shaped seat (21) at the front and back ends, motor electric rods (23) fixedly connected to the surfaces of the support plates (22), circular plates (24) fixedly connected to one end of the motor electric rods (23), circular rods (25) fixedly connected to one end of the surfaces of the circular plates (24), hollow plates (26) arranged on the surfaces of the circular rods (25), limiting rods (261) fixedly connected to the left side of the T-shaped seat (21), connecting strips (27) fixedly connected to the right side of the hollow plates (26), sealing cylinders (28) arranged on the surfaces of the connecting strips (27), and hammers (29) fixedly connected to the right end of the connecting strips (27).

2. The cryogenic heat exchanger for natural gas liquefaction process according to claim 1, characterized in that: A circular hole is formed in the top end of the hollow plate (26), and the surface of the limiting rod (261) is slidably connected to the circular hole.

3. The cryogenic heat exchanger for natural gas liquefaction process according to claim 1, characterized in that: A hollow groove is formed in the surface of the hollow plate (26), and the surface of the circular rod (25) is located in the hollow groove.

4. The cryogenic heat exchanger for natural gas liquefaction process according to claim 1, characterized in that: A circular hole is formed in the left end of the T-shaped seat (21), and the surface of the sealing cylinder (28) is fixedly connected to the inside of the circular hole.

5. The cryogenic heat exchanger for natural gas liquefaction process according to claim 1, characterized in that: The dismounting mechanism (3) comprises an L-shaped seat (31) fixedly connected to the top of the T-shaped seat (21), a first spring (351) fixedly connected to the inside of the L-shaped seat (31), a limiting plate (352) fixedly connected to one end of the first spring (351), a long rod (32) fixedly connected to the inside of the limiting plate (352), a clamping block (35) fixedly connected to the left end of the long rod (32), a pushing strip (33) fixedly connected to the right end of the long rod (32), an arc-shaped clamping strip (34) fixedly connected to the bottom end of the pushing strip (33), a base (36) arranged at the bottom end of the T-shaped seat (21), an installation frame (37) arranged in the inside of the base (36), a filter screen (38) fixedly connected to the inside of the installation frame (37), sliding blocks (39) fixedly connected to the two ends of the base (36), second springs (391) fixedly connected to the top of the sliding blocks (39), a top seat (353) fixedly connected to the top of the installation frame (37), and a rectangular hole formed in the bottom end of the L-shaped seat (31), wherein the surface of the arc-shaped clamping strip (34) is matched with the inside of the arc-shaped hole.

6. A cryogenic heat exchanger for natural gas liquefaction processes according to claim 5, characterized in that: A cavity is formed in the inside of the T-shaped seat (21), and sliding grooves are formed at the front and back ends of the cavity, and the surface of the sliding block (39) is slidably connected to the inside of the sliding groove.

7. A cryogenic heat exchanger for natural gas liquefaction process according to claim 5, characterized in that: The L-shaped seat (31) is internally provided with a limiting groove, the surface of the limiting plate (352) is slidably connected with the inside of the limiting groove, the top seat (353) is respectively provided with a bayonet at the front and rear ends, and the surface of the clamping block (35) is matched with the inside of the bayonet.

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