Molecular sieve type gas cooler used in closed negative pressure environment

Abstract

The utility model discloses a molecular sieve type gas cooler used in a closed negative pressure environment, which comprises a gas cooler, a core body is arranged in the gas cooler, a plurality of groups of auxiliary seats are sleeved on the plate surface of the core body, and a plurality of groups of molecular sieve filling particles positioned on the side edge of the core body are arranged in the gas cooler. A sealing sleeve sleeves the end surface of one end of the gas cooler; according to the utility model, the molecular sieve is added in the gas side channel of the gas cooler for filling particulate matters to filter gas, the use environment is closed negative pressure and pollution is prevented, the mounting surface of the gas cooler is in contact with the connecting device by adopting the polytetrafluoroethylene sealing strip, and the heat loss is prevented by utilizing the characteristics of the polytetrafluoroethylene sealing strip; detachable stainless steel screens are designed on the air inlet side and the air outlet side and are connected with the auxiliary seat through cross-shaped countersunk head screws, so that the loss of molecular sieve filling particles is prevented, and the detachable stainless steel screens can be replaced as required.

Description

Technical Field

[0001] This utility model relates to the field of plate-fin heat exchanger technology, and in particular to a molecular sieve type gas cooler for use in a closed negative pressure environment. Background Technology

[0002] A closed negative pressure environment refers to a relatively enclosed space where the internal air pressure is lower than the external air pressure. In this environment, gas flow and temperature control are affected to some extent. Negative pressure environments are usually used in situations where it is necessary to prevent external gases or pollutants from entering, such as laboratories and food processing plants.

[0003] The plate-fin heat exchanger structure has a gas side filled with molecular sieves and a liquid side that alternately flows into solutions of different temperatures to exchange heat with a mixed gas in a closed negative pressure environment. It is used as a gas cooler for applications with harsh requirements for the heat exchange gas.

[0004] In light of the above, it should be noted that Chinese Patent CN111854498B discloses a high-temperature gas cooler that disperses and evenly distributes high-temperature gas to reduce the impact of uneven distribution of high-temperature gas caused by airflow inertia and improve the heat exchange efficiency of the high-temperature gas cooler. However, it lacks anti-contamination treatment for the gas entering the device, which causes continuous damage to the internal structure of the device, makes it inconvenient for subsequent quick disassembly and maintenance, and may also cause abnormal changes in the cooling effect of the device in the long run.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a molecular sieve-type gas cooler for use in a closed negative pressure environment to solve the problems mentioned above.

[0007] The purpose of this utility model can be achieved through the following technical solution: a molecular sieve gas cooler for use in a closed negative pressure environment, including a gas cooler, a core is provided inside the gas cooler, multiple sets of attachments are sleeved on the plate surface of the core, multiple sets of molecular sieve filling particles are provided inside the gas cooler located on the side of the core, and a sealing sleeve is sleeved on one end face of the gas cooler.

[0008] The gas cooler is symmetrically provided with an upper stainless steel frame and a lower stainless steel frame at its top and bottom. The upper stainless steel frame is symmetrically provided with sealing strip one and sealing strip two for connecting the gas cooler at both ends. The gas cooler is symmetrically provided with guide rail one and guide rail two on both sides.

[0009] Preferably, the gas cooler has partitions symmetrically arranged on both sides connected to guide rail one and guide rail two, and one end face of the gas cooler has multiple sets of grooves recessed, and each set of grooves has a pipe fitting inside.

[0010] Preferably, the sealing sleeve is fitted onto the end face of the groove, and the sealing sleeve is fitted and sealed with multiple sets of pipe fittings. The sealing sleeve, multiple sets of grooves, and the gas cooler form an inlet chamber and an outlet chamber.

[0011] Preferably, multiple sets of the cores are snapped together side by side inside the gas cooler, and the surface of the cores is provided with fins near the attachment.

[0012] Preferably, the top and bottom of the attachment are provided with Phillips head countersunk screws that connect to the upper and lower stainless steel frames.

[0013] Preferably, the bottom frame of the upper stainless steel frame is provided with a screen facing the core, and the sealing strip one and sealing strip two are respectively connected and fixed to the body of the gas cooler by countersunk screws.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model is based on the fact that the gas medium has strict environmental requirements, the use environment is in a closed negative pressure environment, and pollution generated during the gas circulation process is prevented. In this way, molecular sieve adsorption material is added to the gas side to fill particulate matter, thereby filtering the gas and improving the gas quality.

[0016] (2) This utility model uses a sealing strip made of polytetrafluoroethylene (PTFE) to contact the gas cooler mounting surface with the connecting device. It makes full use of PTFE's excellent high and low temperature resistance, chemical corrosion resistance, low friction coefficient and lubricity to prevent the heat exchange core from being directly connected to the connecting device and affecting heat loss. The track is made of PTFE to enhance the sealing effect and extend the service life. At the same time, it is easier to disassemble and assemble like a drawer.

[0017] (3) The present invention also features a detachable stainless steel screen on the gas inlet and outlet sides, which is connected to the seat in the gas side channel by a cross countersunk screw, which not only prevents the loss of molecular sieve particles but also allows for replacement when the molecular sieve particles fail. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings;

[0019] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3This is a schematic diagram of the gas cooler structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the core and the attachment of this utility model;

[0023] Figure 5 This is a schematic diagram of the stainless steel frame structure of this utility model;

[0024] Figure 6 This is a partial bottom view of the stainless steel frame structure of this utility model;

[0025] Figure 7 This is a partial structural diagram of guide rail one and guide rail two of this utility model.

[0026] Legend: 1. Gas cooler; 101. Partition plate; 2. Upper stainless steel frame; 201. Sealing strip one; 202. Sealing strip two; 203. Screen; 3. Guide rail one; 4. Lower stainless steel frame; 5. Guide rail two; 6. Sealing sleeve; 7. Subsidiary seat; 8. Molecular sieve filling particles; 9. Core; 901. Fin. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: Please refer to Figure 1 - Figure 7 As shown, this embodiment is a molecular sieve type gas cooler for use in a closed negative pressure environment, including a gas cooler 1, a core 9 is provided inside the gas cooler 1, multiple sets of attachment seats 7 are sleeved on the plate surface of the core 9, multiple sets of molecular sieve filling particles 8 are provided inside the gas cooler 1 located on the side of the core 9, and a sealing sleeve 6 is sleeved on one end face of the gas cooler 1.

[0029] The core 9 is made of aluminum alloy. Multiple cores 9 are arranged side by side and snapped into the gas cooler 1. The surface of the core 9 is provided with fins 901 near the attachment 7. Multiple gas-side channels and water-side channels are formed inside the gas cooler 1. The gas-side channels and water-side channels are assembled with the core 9 by composite plates using seals and fins of different specifications and models. They are then integrally formed by vacuum brazing. It is suitable for closed negative pressure environments. The gas-side channels are filled with molecular sieves to fill particulate matter, which prevents pollution generated during gas circulation and effectively improves the quality of circulating gas.

[0030] The gas cooler 1 has symmetrically arranged partitions 101 on both sides, which connect to guide rail 3 and guide rail 5. One end face of the gas cooler 1 has multiple sets of grooves, each containing a pipe fitting. Guide rail 3 and guide rail 5 are fixed to the gas cooler 1 using hexagonal socket head cap screws. By designing the mounting contact surface and rails as polytetrafluoroethylene (PTFE), effective heat insulation is achieved, preventing heat conduction between the core and the connecting device, thus avoiding impact on heat exchange efficiency. The drawer-type structure facilitates disassembly and assembly and extends service life. Figure 7 As shown.

[0031] The sealing sleeve 6 is fitted onto the end face of the groove, and the sealing sleeve 6 is fitted and sealed with multiple sets of pipe fittings. The sealing sleeve 6, multiple sets of grooves and gas cooler 1 form an inlet chamber and an outlet chamber. The two ends of the water side channel are welded in sequence to the rear water chamber, the inlet chamber, the outlet chamber and the cover plate. The rear water chamber is located in the inner wall of the end face of gas cooler 1 and is close to the inlet chamber and the outlet chamber. The sealing sleeve 6 made of polytetrafluoroethylene is fixedly connected to gas cooler 1 by cross countersunk screws. The cooling medium is guided into the water along the inlet chamber pipe, passes through the water side and enters the rear water chamber and the outlet chamber, forming a water circulation route. The components are fitted together by suitable fittings.

[0032] Example 2: A molecular sieve gas cooler for use in a closed negative pressure environment in this example includes an upper stainless steel frame 2 and a lower stainless steel frame 4 symmetrically arranged at the top and bottom of the gas cooler 1. A sealing strip 201 and a sealing strip 202 for connecting the gas cooler 1 are symmetrically arranged at both ends of the upper stainless steel frame 2. A guide rail 3 and a guide rail 5 are symmetrically arranged on both sides of the gas cooler 1.

[0033] The top and bottom of the attachment 7 are equipped with cross-head countersunk screws that connect to the upper stainless steel frame 2 and the lower stainless steel frame 4. The stainless steel screen 203 is installed on both sides of the gas inlet and outlet of the gas cooler 1 using standard parts. Finally, the sealing strip 201, sealing strip 202, guide rail 3 and guide rail 5 made of polytetrafluoroethylene material are installed using standard parts, thus forming the molecular sieve type gas cooler 1.

[0034] A screen 203 facing the core 9 is provided on the bottom frame of the upper stainless steel frame 2. Sealing strip 1 201 and sealing strip 202 are respectively connected and fixed to the body of the gas cooler 1 by cross countersunk screws. The stainless steel screen is fixed to the core 9 by screws on the inlet or outlet side. Molecular sieve filling particles 8 are filled into the gas side channel. Finally, the stainless steel screen 203 is fixedly connected to the gas cooler 1 by cross countersunk screws.

[0035] The bottom area of ​​the gas cooler 1 near the lower stainless steel frame 4 is the air inlet side, and the top area of ​​the gas cooler 1 near the stainless steel frame 2 is the air outlet side. The air inlet and outlet sides are designed with detachable stainless steel screens 203, which not only prevents the loss of molecular sieve particles but also allows for the replacement of failed molecular sieve filling particles, greatly improving the repeatability of the product.

[0036] As can be seen from Examples 1 and 2, adding molecular sieve-filled particles 8 to the gas-side channel of the gas cooler 1 filters the gas, improves the gas quality, and provides a closed negative pressure environment to prevent pollution. The mounting surface of the gas cooler 1 uses a polytetrafluoroethylene (PTFE) sealing strip to contact the connecting device, utilizing its properties to prevent heat loss. The same material is also used to make the track, which enhances the seal, extends the service life, and facilitates disassembly and assembly. A detachable stainless steel screen 203 is designed on the inlet and outlet sides and connected to the bracket 7 with a cross-head countersunk screw, which can prevent the loss of molecular sieve-filled particles 8 and can be replaced as needed.

[0037] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A molecular sieve-type gas cooler for use in a closed negative pressure environment, comprising a gas cooler (1), characterized in that, The gas cooler (1) has a core (9) inside, and multiple sets of attachments (7) are sleeved on the plate surface of the core (9). The gas cooler (1) has multiple sets of molecular sieve filling particles (8) located on the side of the core (9). A sealing sleeve (6) is sleeved on one end face of the gas cooler (1). The gas cooler (1) is symmetrically provided with an upper stainless steel frame (2) and a lower stainless steel frame (4) at the top and bottom. The upper stainless steel frame (2) is symmetrically provided with a sealing strip one (201) and a sealing strip two (202) for connecting the gas cooler (1) at both ends. The gas cooler (1) is symmetrically provided with a guide rail one (3) and a guide rail two (5) on both sides.

2. The molecular sieve-type gas cooler for use in a closed negative pressure environment according to claim 1, characterized in that, The gas cooler (1) has partitions (101) symmetrically arranged on both sides, which are connected to guide rail one (3) and guide rail two (5). One end face of the gas cooler (1) is recessed and has multiple sets of grooves, and each set of grooves has a pipe fitting inside.

3. A molecular sieve-type gas cooler for use in a closed negative pressure environment according to claim 2, characterized in that, The sealing sleeve (6) is fitted onto the end face of the groove, and the sealing sleeve (6) is fitted and sealed with multiple sets of pipe fittings. The sealing sleeve (6) and multiple sets of grooves and gas cooler (1) form an inlet chamber and an outlet chamber.

4. A molecular sieve-type gas cooler for use in a closed negative pressure environment according to claim 1, characterized in that, Multiple sets of the cores (9) are snapped together in the gas cooler (1) and the surface of the cores (9) is provided with fins (901) near the attachment (7).

5. A molecular sieve-type gas cooler for use in a closed negative pressure environment according to claim 4, characterized in that, The top and bottom of the attachment (7) are provided with cross-head countersunk screws that connect to the upper stainless steel frame (2) and the lower stainless steel frame (4).

6. A molecular sieve-type gas cooler for use in a closed negative pressure environment according to claim 1, characterized in that, The bottom frame of the upper stainless steel frame (2) is provided with a screen (203) facing the core (9), and the sealing strip one (201) and sealing strip two (202) are respectively connected and fixed to the body of the gas cooler (1) by countersunk screws.

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