A tube-in-tube condenser convenient to disassemble
By combining the fixed sealing ring unit and the clamping nut unit, the problem of high disassembly and assembly difficulty of shell and tube condensers is solved, achieving simple, efficient disassembly and assembly operations and stability, and ensuring the safety of the shell and tube.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANJI KEGUANG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-23
AI Technical Summary
The disassembly and assembly of existing shell-and-tube condensers are difficult, and continuous force is required to separate the tubes from the tube sheet, which is prone to impact damage.
The combination structure of a fixed sealing ring unit, a length clamping nut unit, a sealing ring composite tube unit, an insertion direction front end plate unit, and an insertion direction rear end plate unit enables simple one-step assembly and disassembly of the tube condenser.
It enables efficient assembly and disassembly of shell-and-tube condensers, ensuring installation stability and sealing, and preventing damage to the shells and tubes.
Smart Images
Figure CN224398410U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of heat exchange equipment, and in particular relates to a shell-and-tube condenser that is easy to disassemble and assemble. Background Technology
[0002] A shell-and-tube condenser is a heat exchange device widely used in industries such as chemical, petroleum, power, and refrigeration. The main function of a shell-and-tube condenser is to convert gas into liquid through a condensation process, or, in some applications, to cool liquids.
[0003] Furthermore, the main principle of a shell-and-tube condenser is that one medium (usually steam or other gaseous substance) flows outside the tubes and becomes liquid after condensation; another medium (usually water or other coolant) flows inside the tubes, absorbing and carrying away heat. In this way, heat is transferred from a higher temperature region to a lower temperature region.
[0004] Generally, common shell-and-tube condensers consist mainly of: tube bundles, tube sheets, a shell, and a cover. The tube bundles and cover together form the tube side of the condenser, while the shell itself is the shell side. The main function of the tube sheet is:
[0005] First, it serves as the boundary between the tube side and the shell side, preventing interpenetration between gas and liquid, and between liquid and liquid.
[0006] Second, it serves as the support and mounting point for all tube bundles.
[0007] Typically, there are two tube sheets, arranged one on the left and one on the right inside the outer casing. The disassembly and assembly of the shell-and-tube condenser is mainly for cleaning the inner ring surface of the outer casing, the inner and outer ring surfaces of the tube bundle, and the opposite sides of the tube sheets.
[0008] For example, Chinese utility model patent with authorization announcement number CN 220893020 U and authorization announcement date of 2024.05.03 discloses a shell-and-tube condenser, whose main structural components include: condenser body, shell-and-tube plate, first bolt, insert plate, sealing layer, slot, spring, fastening plate, filter plate, and filter layer.
[0009] The advantages of the tube-and-shell condenser in this utility model patent are as follows: when installing the tubes inside the slot, the operator inserts the tubes into the slot, and fastening plates are respectively set on both sides of each slot. The fastening plates contact the tubes inside the slot, thereby clamping the tubes. This not only facilitates the installation of the tubes, but also facilitates the disassembly of the tubes.
[0010] However, in actual use, the above-mentioned disassembly operation of this shell-and-tube condenser still has certain problems in terms of poor practicality and relatively high operational difficulty, specifically manifested as follows:
[0011] First, the integral structure consisting of the tubes and tube sheet is difficult to remove from the condenser body in one step;
[0012] Secondly, when separating the tubes from the tube sheet, it is necessary to apply continuous force and fully pry open the two fastening plates in pairs. This is quite troublesome and inefficient. Moreover, if the fastening plates slip out under the action of the spring, they are prone to impacting and damaging the tubes. Utility Model Content
[0013] This application provides a shell-and-tube condenser that is easy to disassemble and assemble. The technical problem to be solved is how to make the shell and tube on the tube sheet, as well as the overall structure of the shell and tube sheet, easy to disassemble and assemble.
[0014] The technical solution adopted by this application to solve the above problems is: a shell-and-tube condenser that is easy to disassemble and assemble, the structure of which includes a tubular shell, a fixed sealing ring unit and a length clamping nut unit disposed on the inner ring surface of the tubular shell and located at both ends, a sealing ring composite tube unit, an insertion direction front end plate unit that is engaged with one end of the sealing ring composite tube unit and used to clamp the fixed sealing ring unit, an insertion direction rear end plate unit that is engaged with the other end of the sealing ring composite tube unit and inserted into the length clamping nut unit, and a movable sealing ring unit disposed on the length clamping nut unit and used to clamp the insertion direction rear end plate unit.
[0015] A further preferred technical solution is that the fixed sealing ring unit includes a fixed ring disposed on the inner ring surface of the tubular housing, and a fixed sealing ring disposed on the side of the fixed ring and clamped by the insertion direction front end plate unit.
[0016] A further preferred technical solution is that the length-direction clamping nut unit includes a radial plate disposed on the inner annular surface of the tubular housing, a length-direction screw disposed on the side of the radial plate away from the fixed sealing ring unit and used for inserting the insertion direction rear end plate unit and the movable sealing ring unit, and a fastening nut disposed on the length-direction screw and used for clamping the movable sealing ring unit.
[0017] A further preferred technical solution is that the sealing ring composite tube unit includes a circular tube body, a positioning ring disposed on the outer ring surface of the circular tube body and located at both ends, and respectively engaged by the front end plate unit and the rear end plate unit of the insertion direction, and a tube sealing ring disposed on the opposite side of the positioning ring.
[0018] A further preferred technical solution is that the insertion direction front end plate unit includes a front end circular plate disposed on the inner annular surface of the tubular housing and clamping the fixing sealing ring and the pipe sealing ring, a front end pipe hole, and slots disposed on the annular surface and two side surfaces of the front end circular plate and allowing the length to pass through the clamping nut unit.
[0019] A further preferred technical solution is that the insertion direction rear end plate unit includes a rear end circular plate disposed on the inner annular surface of the tubular housing and clamping the movable sealing ring unit and the sealing ring on the pipe, a rear end pipe hole, and a circumferential positioning hole disposed on the rear end circular plate for inserting the length-direction screw.
[0020] A further preferred technical solution is that the movable sealing ring unit includes a movable ring disposed on the inner ring surface of the tubular housing and clamped by the fastening nut, a mounting hole disposed on the movable ring and used for inserting the length-direction screw, and a movable sealing ring disposed on the side of the movable ring and used for clamping the insertion direction rear end plate unit.
[0021] A further preferred technical solution is that the length-direction clamping nut unit further includes a length-direction rectangular plate disposed on at least one of the radial plates, engaging the slot, and used for circumferential positioning of the length-direction front plate unit when the sealing ring composite tube unit is assembled and disassembled together with the loading direction front end plate unit and the loading direction rear end plate unit.
[0022] A further preferred technical solution is that the sealing ring composite tube unit further includes an integral nut disposed on the outer ring surface of at least one of the circular tube bodies, and used to clamp the front end plate unit and the rear end plate unit of the insertion direction, respectively.
[0023] A further preferred technical solution is that the movable sealing ring unit further includes a housing sealing ring disposed on the outer ring surface of the movable ring.
[0024] The beneficial effects of this application include at least the following three points.
[0025] First, the integrated structure consisting of the sealing ring composite tube unit, the front plate unit for insertion direction, and the rear plate unit for insertion direction has the outstanding advantages of simple and efficient disassembly and assembly within the tubular housing, allowing for one-step overall removal and placement.
[0026] Secondly, the overall structure itself has the advantage of being easy to disassemble and assemble, that is, when the sealing ring composite tube unit needs to be removed separately, it is simple and convenient enough.
[0027] Third, when the above-mentioned overall structure is used normally inside the tubular shell, it has the combined advantages of high installation stability and sufficient sealing. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of this application.
[0029] Figure 2 This is a schematic diagram showing the location of the sealing ring composite tube unit in this application.
[0030] Figure 3 This is a schematic diagram showing the positions of the fixed sealing ring unit and the length-direction clamping nut unit in this application.
[0031] Figure 4 This is a schematic diagram of the sealing method of the fixed sealing ring unit and the front end plate unit in the insertion direction in this application.
[0032] Figure 5 This is a schematic diagram of the sealing method for the installation of the directional rear end plate unit and the movable sealing ring unit in this application.
[0033] Figure 6 This is a schematic diagram of the structure of the movable sealing ring unit in this application.
[0034] Figure 7 This is a schematic diagram of the sealing ring composite tube unit in this application.
[0035] Figure 8 This is a schematic diagram of one structure of the length-direction clamping nut unit in this application.
[0036] Figure 9 This is a schematic diagram showing the position of the rectangular plate along the length in this application.
[0037] Figure 10 This is a structural schematic diagram of the front-end board unit and the rear-end board unit of the orientation in this application.
[0038] The meanings of the markings in the diagram are as follows.
[0039] 11. Tubular outer casing; 12. End cover plate; 13. Shell-side tube;
[0040] Fixed sealing ring unit 1, length clamping nut unit 2, sealing ring composite tube unit 3, front end plate unit in the insertion direction 4, rear end plate unit in the insertion direction 5, movable sealing ring unit 6;
[0041] Fixed ring 101, fixed sealing ring 102;
[0042] Radial plate 201, longitudinal screw 202, fastening nut 203, longitudinal rectangular plate 204;
[0043] 301. Circular tube body; 302. Positioning ring; 303. Sealing ring on the tube; 304. Integral nut;
[0044] Front circular plate 401, front tube hole 402, slot 403;
[0045] Rear circular plate 501, rear tube hole 502, circumferential positioning hole 503;
[0046] 601 movable ring, 602 mounting hole, 603 movable sealing ring, 604 outer shell sealing ring. Detailed Implementation
[0047] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.
[0048] like Figures 1-10 As shown, a shell-and-tube condenser that is easy to assemble and disassemble includes a tubular outer shell 11, a fixed sealing ring unit 1 and a length clamping nut unit 2 disposed on the inner ring surface of the tubular outer shell 11 and located at both ends, a sealing ring composite tube unit 3, an insertion-direction front plate unit 4 that engages with one end of the sealing ring composite tube unit 3 and is used to clamp the fixed sealing ring unit 1, an insertion-direction rear plate unit 5 that engages with the other end of the sealing ring composite tube unit 3 and is inserted into the length clamping nut unit 2, and a movable sealing ring unit 6 disposed on the length clamping nut unit 2 and used to clamp the insertion-direction rear plate unit 5.
[0049] In this embodiment, the meaning of the phrase "easy to disassemble and assemble" refers to:
[0050] First, the overall structure composed of the sealing ring composite tube unit 3, the front plate unit 4 for the insertion direction, and the rear plate unit 5 for the insertion direction, i.e. the tube-side structure of the tube-type condenser, is simple and efficient to remove and install inside the tube-type outer shell 11. It can be done in one step, i.e., the above three components can be removed and installed together.
[0051] Secondly, the sealing ring composite tube unit 3 is also relatively simple and convenient to disassemble and assemble individually in the above-mentioned overall structure. After it is disconnected from the installation relationship with the front plate unit 4 and the rear plate unit 5 in the installation direction, all the tubes included in it can be removed at one time, thereby achieving a quick disassembly effect. Correspondingly, after one front plate unit 4 and one rear plate unit 5 in the installation direction are correctly connected to the sealing ring composite tube unit 3, a quick assembly effect can be achieved.
[0052] The fixed sealing ring unit 1 and the tubular outer shell 11 are integrally formed, and the sealing performance at this point is sufficient.
[0053] Furthermore, there are sealing ring structures between the front end plate unit 4 and the fixed sealing ring unit 1, between the sealing ring composite tube unit 3 and the front end plate unit 4, between the rear end plate unit 5 and the sealing ring composite tube unit 3, between the movable sealing ring unit 6 and the rear end plate unit 5, and between the movable sealing ring unit 6 and the tubular outer shell 11. Therefore, it can be ensured that the tube condenser has sufficient sealing performance between the shell side and the tube side.
[0054] On the other hand, the tubular outer shell 11, the fixed sealing ring unit 1, and the length-direction clamping nut unit 2 are integrally formed and are made of stainless steel or aluminum alloy. The main body of the sealing ring composite tube unit 3, the insertion direction front end plate unit 4, and the insertion direction rear end plate unit 5 are also made of stainless steel or aluminum alloy, thereby achieving sufficient support strength and thermal conductivity.
[0055] The material of the movable sealing ring unit 6 can be ordinary rubber, which is not the main pressure-bearing part. It is sufficient to ensure sufficient corrosion resistance and a certain structural strength.
[0056] Thus, when the shell-and-tube condenser is in use, steam or other gaseous substances pass sequentially through the first shell-side tube 13, the tubular outer shell 11, and the second shell-side tube 13, while water or other coolant passes sequentially through the first end cover plate 12, the sealing ring composite shell-and-tube unit 3, and the second end cover plate 12, thereby achieving a basically effective condensation effect.
[0057] The fixed sealing ring unit 1 includes a fixed ring 101 disposed on the inner ring surface of the tubular housing 11, and a fixed sealing ring 102 disposed on the side of the fixed ring 101 and clamped by the insertion direction front end plate unit 4.
[0058] In this embodiment, the fixing sealing ring 102 is annular in shape and is engaged with the side of the fixing ring 101 facing the length of the clamping nut unit 2. For example, the engaging method may involve creating an annular groove on the fixing ring 101 for embedding and installing the fixing sealing ring 102.
[0059] The inner diameter of the fixed ring 101 is relatively large to ensure that it will not come into contact with the sealing ring composite tube unit 3.
[0060] The length-direction clamping nut unit 2 includes a radial plate 201 disposed on the inner annular surface of the tubular housing 11, a length-direction screw 202 disposed on the side of the radial plate 201 away from the fixed sealing ring unit 1 and used for inserting the insertion direction rear end plate unit 5 and the movable sealing ring unit 6, and a fastening nut 203 disposed on the length-direction screw 202 and used for clamping the movable sealing ring unit 6.
[0061] In this embodiment, the overall shape of the radial plate 201 and the longitudinal screw 202 is similar to an "L" shape. The term "radial" in the radial plate 201 refers to its length direction corresponding to the radial direction of the tubular housing 11; the term "longitudinal" in the longitudinal screw 202 refers to its length direction corresponding to the longitudinal direction of the tubular housing 11. (See attached...) Figure 3 As shown, the radial direction of the tubular outer shell 11 is the vertical direction in the figure, and the length direction of the tubular outer shell 11 is the horizontal direction in the figure.
[0062] Accordingly, this integrated structure of the sealing ring composite tube unit 3, the front end plate unit 4 for the insertion direction, and the rear end plate unit 5 for the insertion direction, when disassembled and assembled within the tubular housing 11:
[0063] The loading direction front end plate unit 4 needs to allow the length direction clamping nut unit 2 to pass through it, and the two do not interfere with each other;
[0064] The loading direction rear end plate unit 5 needs to allow the length direction clamping nut unit 2 to be inserted into itself.
[0065] The latter is the structural basis for installing the movable sealing ring unit 6.
[0066] Thus, the entire structure of the sealing ring composite tube unit 3, the front plate unit 4 for insertion direction, and the rear plate unit 5 for insertion direction can be completely fixed inside the tubular housing 11, meaning it will neither shift left or right nor rotate as a whole.
[0067] Accordingly, the installation sequence of the movable sealing ring unit 6 is after the overall structure of the sealing ring composite tube unit 3, the front end plate unit 4 of the insertion direction, and the rear end plate unit 5 of the insertion direction, while the installation sequence of the fastening nut 203 is after the movable sealing ring unit 6.
[0068] The sealing ring composite tube unit 3 includes a circular tube body 301, a positioning ring 302 disposed on the outer ring surface of the circular tube body 301 and located at both ends and respectively engaged by the front end plate unit 4 and the rear end plate unit 5 of the insertion direction, and a tube sealing ring 303 disposed on the opposite side of the positioning ring 302.
[0069] In this embodiment, the cylindrical tube body 301 and the positioning ring 302 are integrally formed, and the sealing ring 303 on the tube is also embedded in the annular groove on the opposite side of the positioning ring 302.
[0070] The number of the circular tube bodies 301 is 10-50. The function of the sealing ring 303 on the tube is:
[0071] The connection between the cylindrical tube body 301 and the front end plate unit 4 in the insertion direction, and the rear end plate unit 5 in the insertion direction, does not require extremely high structural precision. The above-mentioned connection positions do not need to provide sealing performance, and it is sufficient to ensure that the cylindrical tube body 301 is not easily displaced at the above-mentioned connection positions.
[0072] The loading direction front end plate unit 4 includes a front end circular plate 401 disposed on the inner annular surface of the tubular housing 11 and clamping the fixing sealing ring 102 and the pipe sealing ring 303, a front end pipe hole 402, and a slot 403 disposed on the annular surface and two side surfaces of the front end circular plate 401 and allowing the length to pass through the clamping nut unit 2.
[0073] In this embodiment, the diameter of the front circular plate 401 is less than the inner diameter of the tubular outer shell 11 by an amount controlled within 1.0 cm. The radial dimension of the slot 403 on the front circular plate 401 is relatively small, ensuring that:
[0074] When the front circular plate 401 fully presses against the fixed sealing ring 102, all the slots 403 are on the outside of the fixed sealing ring 102.
[0075] The loading direction rear end plate unit 5 includes a rear circular plate 501 disposed on the inner ring surface of the tubular housing 11 and clamping the movable sealing ring unit 6 and the tube sealing ring 303, a rear pipe hole 502, and a circumferential positioning hole 503 disposed on the rear circular plate 501 for inserting the length-direction screw 202.
[0076] In this embodiment, the diameters of the rear circular plate 501 and the front circular plate 401 are equal, and the number and circumferential position of the circumferential positioning holes 503 and the slots 403 are also corresponding, ensuring that the length-direction screw 202 can pass through the slots 403 and be inserted into the circumferential positioning holes 503 in sequence.
[0077] The movable sealing ring unit 6 includes a movable ring 601 disposed on the inner ring surface of the tubular housing 11 and clamped by the fastening nut 203, a mounting hole 602 disposed on the movable ring 601 and used for inserting the length-direction screw 202, and a movable sealing ring 603 disposed on the side of the movable ring 601 and used for clamping the insertion direction rear end plate unit 5.
[0078] In this embodiment, all dimensional parameters of the movable sealing ring 603 are equal to those of the fixed sealing ring 102. The number and circumferential position of the mounting holes 602 are also consistent with those of the circumferential positioning holes 503, thereby allowing the length-directing screw 202 to pass through the circumferential positioning holes 503 and the mounting holes 602 in sequence, and then tightening the fastening nut 203, ultimately achieving sufficient sealing at the movable sealing ring 603.
[0079] Correspondingly, the inner diameter of the movable ring 601 also needs to be relatively large to avoid bumping into all the cylindrical bodies 301.
[0080] The length-direction clamping nut unit 2 also includes a length-direction rectangular plate 204 disposed on at least one of the radial plates 201 and engaging the slot 403, and used for circumferential positioning of the length-direction rectangular plate 204 of the loading direction front plate unit 4 when the sealing ring composite tube unit 3 is assembled and disassembled together with the loading direction front end plate unit 4 and the loading direction rear end plate unit 5.
[0081] In this embodiment, the main function of the length-oriented rectangular plate 204 is:
[0082] When the sealing ring composite tube unit 3, the front plate unit 4 and the rear plate unit 5 are installed, the annular angle of the entire structure is fixed as long as the slot 403 engages with the radial plate 201 during initial installation, until the entire structure is removed from the tubular housing 11. This prevents the harmful phenomenon of the length clamping nut unit 2 impacting the front plate unit 4 and the rear plate unit 5.
[0083] At this time, the length of the rectangular plate 204 is relatively large, and its non-installation end can directly abut against the fixing ring 101.
[0084] On the other hand, the elongated rectangular plate 204 can also be directly connected to the fixing ring 101, or directly connected to the fixing ring 101 and the tubular shell 11, which has the following advantages:
[0085] First, improve the structural stability of the length-oriented clamping nut unit 2;
[0086] Second, completely avoid the situation where the slot 403 and the length-oriented rectangular plate 204 establish an engagement relationship and then separate from each other.
[0087] The sealing ring composite tube unit 3 also includes an integral nut 304 disposed on the outer ring surface of at least one of the circular tube bodies 301 and used to clamp the front end plate unit 4 and the rear end plate unit 5 of the insertion direction, respectively.
[0088] In this embodiment, the sealing ring composite tube unit 3, the front end plate unit 4 for the insertion direction, and the rear end plate unit 5 for the insertion direction are combined into a single structure for the following two main reasons:
[0089] First, the circular tube body 301 and the front end tube hole 402 and the rear end tube hole 502 are fully and appropriately interference-fitted, and a certain tensile force needs to be applied to separate the three of them from each other;
[0090] Second, at least one of the circular tube bodies 301 has an integral nut 304 at one end on its outer ring surface, thereby assembling the above three into an integral structure.
[0091] It should be noted that both of the above methods have the advantage of easy disassembly and assembly of the sealing ring composite tube unit 3. After the front end plate unit 4 and the rear end plate unit 5 of the insertion direction establish or disassemble the sleeve relationship with the sealing ring composite tube unit 3, all the round tube bodies 301 can be installed and removed in one step.
[0092] The movable sealing ring unit 6 also includes a housing sealing ring 604 disposed on the outer ring surface of the movable ring 601.
[0093] In this embodiment, since the movable ring 601 is made of ordinary rubber, the sealing between it and the inner ring surface of the tubular housing 11 can be achieved by its own relatively large diameter.
[0094] After the outer shell sealing ring 604 is set, the movable ring 601 will no longer have the problem of outer ring surface wear. The outer shell sealing ring 604 can be replaced periodically. The outer shell sealing ring 604 is engaged in the annular groove on the outer ring surface of the movable ring 601.
[0095] The radial thickness of the outer shell sealing ring 604 is 1.5-2.0cm, and it is made of materials with excellent corrosion resistance, such as silicone rubber or fluororubber.
[0096] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of this application.
Claims
1. A shell-and-tube condenser that is easy to disassemble and assemble, comprising a tubular outer shell (11), characterized in that: It also includes a fixed sealing ring unit (1) and a length clamping nut unit (2) disposed on the inner ring surface of the tubular housing (11) and located at both ends, a sealing ring composite tube unit (3), an insertion direction front end plate unit (4) that engages with one end of the sealing ring composite tube unit (3) and is used to clamp the fixed sealing ring unit (1), an insertion direction rear end plate unit (5) that engages with the other end of the sealing ring composite tube unit (3) and is inserted into the length clamping nut unit (2), and a movable sealing ring unit (6) disposed on the length clamping nut unit (2) and used to clamp the insertion direction rear end plate unit (5).
2. The shell-and-tube condenser for easy assembly and disassembly according to claim 1, characterized in that: The fixed sealing ring unit (1) includes a fixed ring (101) disposed on the inner ring surface of the tubular housing (11), and a fixed sealing ring (102) disposed on the side of the fixed ring (101) and clamped by the insertion direction front end plate unit (4).
3. A shell-and-tube condenser for easy disassembly and assembly according to claim 2, characterized in that: The length-direction clamping nut unit (2) includes a radial plate (201) disposed on the inner annular surface of the tubular housing (11), a length-direction screw (202) disposed on the side of the radial plate (201) away from the fixed sealing ring unit (1) and used for inserting the insertion direction rear end plate unit (5) and the movable sealing ring unit (6), and a fastening nut (203) disposed on the length-direction screw (202) and used for clamping the movable sealing ring unit (6).
4. A shell-and-tube condenser for easy assembly and disassembly according to claim 3, characterized in that: The sealing ring composite tube unit (3) includes a round tube body (301), a positioning ring (302) disposed on the outer ring surface of the round tube body (301) and located at both ends, and respectively engaged by the front end plate unit (4) and the rear end plate unit (5) of the insertion direction, and a tube sealing ring (303) disposed on the opposite side of the positioning ring (302).
5. A shell-and-tube condenser for easy disassembly and assembly according to claim 4, characterized in that: The loading direction front end plate unit (4) includes a front end circular plate (401) disposed on the inner annular surface of the tubular housing (11) and clamping the fixing sealing ring (102) and the pipe sealing ring (303), a front end pipe hole (402), and a slot (403) disposed on the annular surface and two side surfaces of the front end circular plate (401) and allowing the length to pass through the clamping nut unit (2).
6. A shell-and-tube condenser for easy assembly and disassembly according to claim 4, characterized in that: The loading direction rear end plate unit (5) includes a rear circular plate (501) disposed on the inner ring surface of the tubular housing (11) and clamping the movable sealing ring unit (6) and the tube sealing ring (303), a rear tube hole (502), and a circumferential positioning hole (503) disposed on the rear circular plate (501) for inserting the length-direction screw (202).
7. A shell-and-tube condenser for easy assembly and disassembly according to claim 4, characterized in that: The movable sealing ring unit (6) includes a movable ring (601) disposed on the inner ring surface of the tubular housing (11) and clamped by the fastening nut (203), a mounting hole (602) disposed on the movable ring (601) and used for inserting the length-direction screw (202), and a movable sealing ring (603) disposed on the side of the movable ring (601) and used for clamping the insertion direction rear end plate unit (5).
8. A shell-and-tube condenser for easy disassembly and assembly according to claim 5, characterized in that: The length-direction clamping nut unit (2) also includes a length-direction rectangular plate (204) disposed on at least one of the radial plates (201) and engaging the slot (403), and used for circumferential positioning of the loading direction front plate unit (4) when the sealing ring composite tube unit (3) is assembled and disassembled together with the loading direction front end plate unit (4) and the loading direction rear end plate unit (5).
9. A shell-and-tube condenser for easy assembly and disassembly according to claim 4, characterized in that: The sealing ring composite tube unit (3) also includes an integral nut (304) disposed on the outer ring surface of at least one of the circular tube bodies (301) and used to clamp the front end plate unit (4) and the rear end plate unit (5) of the insertion direction, respectively.
10. A shell-and-tube condenser for easy disassembly and assembly according to claim 7, characterized in that: The movable sealing ring unit (6) also includes a housing sealing ring (604) disposed on the outer ring surface of the movable ring (601).