Pressure-bearing heat exchanger for chemicals

Abstract

The utility model provides a pressure-bearing heat exchanger for chemicals, and belongs to the technical field of chemical manufacturing. The pressure-bearing heat exchanger for the chemicals comprises a shell, a coil pipe support and at least two chemical conveying pipes, a heat exchange cavity used for containing condensate water is formed in the shell, and the shell is provided with a water inlet connector and a water outlet connector which are communicated with the heat exchange cavity. The coil pipe support is located in the heat exchange cavity and extends in the height direction of the heat exchanger. The chemical conveying pipes are wound outside the coil support side by side to form spiral coils with the same inner diameter, each chemical conveying pipe is connected with the coil support, and liquid inlets and liquid outlets of the chemical conveying pipes are communicated with a liquid inlet connector and a liquid outlet connector which are located at the top of the shell and penetrate through the shell respectively. The pressure-bearing heat exchanger for the chemicals can effectively solve the problem of mounting the pressure-bearing heat exchanger in a compact space.

Description

Technical Field

[0001] The present application relates to the technical field of chemical manufacturing, and more particularly, to a pressure-bearing heat exchanger for chemicals. Background Art

[0002] In the prior art, the overall volume of traditional pressure-bearing heat exchangers is usually relatively large. Correspondingly, the space occupied by traditional pressure-bearing heat exchangers is also relatively large. However, the spatial layout in the chemical manufacturing industry is usually relatively compact, which makes the space available for installing pressure-bearing heat exchangers relatively small, resulting in difficulty for traditional large-volume pressure-bearing heat exchangers to meet the installation requirements of the chemical industry. Therefore, how to install a pressure-bearing heat exchanger in a compact space is a major problem currently faced by the chemical industry. Summary of the Utility Model

[0003] The purpose of the present application is to provide a pressure-bearing heat exchanger for chemicals, which can effectively solve the problem of installing a pressure-bearing heat exchanger in a compact space.

[0004] The embodiments of the present application are implemented as follows:

[0005] The embodiments of the present application provide a pressure-bearing heat exchanger for chemicals, including a shell, a coil support, and at least two chemical delivery pipes. The shell has a heat exchange chamber for accommodating condensed water, and the shell is provided with a water inlet joint and a water outlet joint communicated with the heat exchange chamber; the coil support is located in the heat exchange chamber and extends along the height direction of the heat exchanger; multiple chemical delivery pipes are arranged side by side around the outside of the coil support to form a spiral coil with the same inner diameter, each chemical delivery pipe is connected to the coil support, and the liquid inlet and outlet of the multiple chemical delivery pipes are respectively communicated with a liquid inlet joint and a liquid outlet joint located at the top of the shell and penetrating the shell.

[0006] In the prior art, for a pressure-bearing heat exchanger that needs to be provided with multiple material delivery pipes, the multiple material delivery pipes are usually arranged in the form of multi-layer coils with large circles enclosing small circles, that is, making full use of the space of the heat exchanger in the horizontal direction. Correspondingly, this arrangement form makes the heat exchanger require a large floor area. In the present application, a coil support for fixing the chemical delivery pipes is provided in the heat exchange chamber, and multiple chemical delivery pipes are arranged side by side around the outside of the coil support to form a spiral coil with the same inner diameter, that is, making full use of the longitudinal space of the heat exchanger. Correspondingly, this arrangement form makes the heat exchanger require a smaller floor area, thereby effectively solving the problem of installing a pressure-bearing heat exchanger in a compact space. In particular, the liquid inlet joint and the liquid outlet joint of the chemical delivery pipes are both arranged at the top of the shell, which has the advantages of not being prone to liquid leakage and being more aesthetically pleasing.

[0007] In some alternative embodiments, in the height direction of the heat exchanger, multiple chemical delivery pipes all extend from the top to the bottom of the heat exchange chamber.

[0008] In the above technical solution, the chemical pipelines all extend from the top to the bottom of the heat exchange chamber, enabling as many chemical pipelines as possible to be arranged in the heat exchange chamber, thereby increasing the contact area between the material and water and contributing to improving the heat exchange efficiency.

[0009] In some alternative embodiments, the inlet connector and / or the outlet connector are located at the top of the housing.

[0010] In the above technical solution, arranging the inlet connector and / or the outlet connector at the top of the housing has the advantages of not being prone to liquid leakage and being relatively aesthetically pleasing.

[0011] In some alternative embodiments, the coil support is carried on the bottom wall of the housing.

[0012] In the above technical solution, carrying the coil support on the bottom wall of the housing, that is, the coil support is independently arranged in the heat exchange chamber without being connected to the inner wall of the housing, so that the coil support can be separately inserted into and removed from the heat exchange chamber, thereby facilitating the assembly and disassembly of multiple chemical pipelines on the coil support (for example, multiple chemical pipelines can be fixed to the coil support outside the heat exchange chamber and then put into the heat exchange chamber together). At the same time, it also has the advantage of being convenient for maintenance.

[0013] In some alternative embodiments, in the height direction of the heat exchanger, the coil support includes two relatively distributed annular bases and a connecting member for connecting the two annular bases. A plurality of clamping grooves are formed on the side of the connecting member close to the inner peripheral wall of the housing and are spaced apart in the height direction of the heat exchanger. The clamping grooves can be clamped with the outer peripheral wall of the chemical pipeline.

[0014] In the above technical solution, the coil support includes two relatively distributed annular bases and a connecting member for connecting the two annular bases, and clamping grooves for installing and fixing the chemical pipelines are formed on the connecting member. This form of coil support has the advantages of relatively stable self-structure and being able to firmly fix the chemical pipelines.

[0015] In some alternative embodiments, the connecting member includes a plurality of connecting bars spaced apart circumferentially along the annular base. In the height direction of the heat exchanger, both ends of each connecting bar are respectively connected to the two annular bases, and a plurality of clamping grooves are formed on the side of each connecting bar close to the inner peripheral wall of the housing and are spaced apart in the height direction of the heat exchanger.

[0016] In the above technical solution, setting the connecting member in the form of a combination of multiple connecting bars has the advantage of relatively small self-weight compared to an integral connecting member; at the same time, it can also enable the chemical pipeline to have multiple fixing points with the connecting member in the circumferential direction of the annular base, thereby improving the fixing stability of the chemical pipeline.

[0017] In some alternative embodiments, the pressure-bearing heat exchanger further includes a bypass pipe that extends along the height direction of the heat exchanger. A liquid level sensor is installed on the bypass pipe, and the liquid level sensor is used to monitor the liquid level in the heat exchange chamber.

[0018] In the above technical solution, the pressure-bearing heat exchanger is provided with a bypass pipe, and a liquid level sensor for monitoring the liquid level in the heat exchange chamber is installed on the bypass pipe, so that the liquid level sensor can be used to monitor whether there is a liquid leakage problem in the heat exchanger.

[0019] In some alternative embodiments, a plurality of liquid level sensors are provided, and the plurality of liquid level sensors are spaced apart along the height direction of the heat exchanger for monitoring the liquid levels at different positions in the heat exchange chamber.

[0020] In the above technical solution, a plurality of liquid level sensors are arranged at intervals along the height direction of the heat exchanger, so that when the liquid level sensors at some positions fail or malfunction, the remaining liquid level sensors can be used to monitor whether there is a liquid leakage problem in the heat exchanger, thereby improving the safety of the equipment.

[0021] In some alternative embodiments, a pressure sensor and / or a pH sensor are also installed on the bypass pipe.

[0022] In the above technical solution, a pressure sensor and / or a pH sensor are added to the bypass pipe, which can monitor whether there is a liquid leakage problem in the chemical delivery pipe (since the physical and chemical properties of water and materials are different, if there is a leakage, it will cause changes in the pressure and pH in the heat exchange chamber).

[0023] In some alternative embodiments, a reinforcing member is also installed between the housing and the bypass pipe. One end of the reinforcing member is welded to the outer peripheral wall of the housing, and the other end is clamped to the outer peripheral wall of the bypass pipe.

[0024] In the above technical solution, adding a reinforcing member between the housing and the bypass pipe can improve the connection stability between the bypass pipe and the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 FIG. 31 is a schematic structural diagram of the first pressure-bearing heat exchanger for chemicals provided by the embodiment of the present application after being assembled;

[0027] Figure 2It is a schematic structural diagram after disassembling the first pressure-bearing heat exchanger for chemicals provided by the embodiments of the present application;

[0028] Figure 3 It is Figure 1 an enlarged view of part A in

[0029] Figure 4 It is Figure 2 an enlarged view of part B in

[0030] Figure 5 It is a schematic structural diagram after assembling the second pressure-bearing heat exchanger for chemicals provided by the embodiments of the present application.

[0031] Icon: 10 - Pressure-bearing heat exchanger for chemicals; 100 - Shell; 110 - Water inlet joint; 120 - Water outlet joint; 130 - Liquid inlet joint; 140 - Liquid outlet joint; 200 - Coil pipe support; 210 - Ring-shaped base; 220 - Connecting piece; 221 - Connecting bar; 222 - Clamping groove; 300 - Chemicals conveying pipe; 400 - Bypass pipe; 410 - Liquid level sensor; 420 - Pressure sensor; 430 - Reinforcing piece; 500 - Ring-shaped support seat. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0034] It should be noted that: similar reference numerals and letters denote similar items in the following accompanying drawings. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0035] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] The following specifically describes a pressure-bearing heat exchanger for chemicals in the present application.

[0039] Refer to Figure 1 、 Figure 2 and Figure 3 , an embodiment of the present application provides a pressure-bearing heat exchanger for chemicals, including a housing 100, a coil support 200, and at least two chemical delivery pipes 300. The housing 100 has a heat exchange chamber for accommodating condensed water, and the housing 100 is provided with a water inlet joint 110 and a water outlet joint 120 that communicate with the heat exchange chamber; the coil support 200 is located in the heat exchange chamber and extends along the height direction of the heat exchanger; a plurality of chemical delivery pipes 300 are arranged side by side around the outside of the coil support 200 to form a spiral coil with the same inner diameter, each chemical delivery pipe 300 is connected to the coil support 200, and the liquid inlet and liquid outlet of the plurality of chemical delivery pipes 300 are respectively communicated with a liquid inlet joint 130 and a liquid outlet joint 140 located at the top of the housing 100 and penetrating through the housing 100.

[0040] It should be noted that for a pressure-bearing heat exchanger, the water inlet joint 110 and the water outlet joint 120 are usually used to communicate with a water source having a preset pressure so that condensed water always flows in the heat exchange chamber.

[0041] It should be noted that the number of the chemical pipelines 300 is not limited and can be adjusted according to actual needs. For example, the number of the chemical pipelines 300 is two. Correspondingly, the liquid inlet connectors 130 and the liquid outlet connectors 140 provided at the top of the housing 100 are two respectively.

[0042] In the prior art, for a pressure-bearing heat exchanger that needs to be provided with multiple material pipelines, usually the multiple material pipelines are arranged in the form of multi-layer coiled pipes with large circles enclosing small circles, that is, the space of the heat exchanger in the horizontal direction is fully utilized. Correspondingly, this arrangement form makes the heat exchanger require a large floor area. In this application, a coiled pipe support 200 for fixing the chemical pipelines 300 is provided in the heat exchange chamber, and multiple chemical pipelines 300 are arranged side by side around the outside of the coiled pipe support 200 to form a spiral coiled pipe with the same inner diameter, that is, the longitudinal space of the heat exchanger is fully utilized. Correspondingly, this arrangement form makes the heat exchanger require a smaller floor area, thereby effectively solving the problem of installing a pressure-bearing heat exchanger in a compact space. In particular, both the liquid inlet connectors 130 and the liquid outlet connectors 140 of the chemical pipelines 300 are provided at the top of the housing 100, which has the advantages of not being prone to liquid leakage and being more beautiful.

[0043] As an example, in the height direction of the heat exchanger, multiple chemical pipelines 300 all extend from the top to the bottom of the heat exchange chamber.

[0044] In this embodiment, the chemical pipelines 300 all extend from the top to the bottom of the heat exchange chamber, which can arrange as many chemical pipelines 300 as possible in the heat exchange chamber, thereby increasing the contact area between the material and water and helping to improve the heat exchange efficiency.

[0045] Refer to Figure 3 , as an example, the water inlet connector 110 and / or the water outlet connector 120 are located at the top of the housing 100.

[0046] In this embodiment, setting the water inlet connector 110 and / or the water outlet connector 120 at the top of the housing 100 has the advantages of not being prone to liquid leakage and being more beautiful.

[0047] In other possible embodiments, the water inlet connector 110 and / or the water outlet connector 120 can also be opened at non-top positions of the housing 100.

[0048] As an example, the coiled pipe support 200 is carried on the bottom wall of the housing 100.

[0049] In this embodiment, the coil pipe support 200 is carried on the bottom wall of the housing 100, that is, the coil pipe support 200 is independently arranged in the heat exchange chamber without being connected to the inner wall of the housing 100, so that the coil pipe support 200 can be separately placed into and taken out of the heat exchange chamber, thereby facilitating the assembly and disassembly of multiple chemical delivery pipes 300 on the coil pipe support 200 (for example, multiple chemical delivery pipes 300 can be fixed to the coil pipe support 200 outside the heat exchange chamber and then put into the heat exchange chamber together). At the same time, it also has the advantage of being convenient for maintenance.

[0050] It should be noted that the specific configuration of the coil pipe support 200 is not limited and can be adjusted according to actual needs as long as it can fix the chemical delivery pipe 300.

[0051] Refer to Figure 4 , as an example, in the height direction of the heat exchanger, the coil pipe support 200 includes two relatively distributed annular bases 210 and a connecting member 220 for connecting the two annular bases 210. A plurality of clamping grooves are formed on one side of the connecting member 220 close to the inner peripheral wall of the housing 100 and are spaced apart in the height direction of the heat exchanger. The clamping grooves can be clamped with the outer peripheral wall of the chemical delivery pipe 300.

[0052] In this embodiment, the coil pipe support 200 includes two relatively distributed annular bases 210 and a connecting member 220 for connecting the two annular bases 210, and a clamping groove 222 for installing and fixing the chemical delivery pipe 300 is formed on the connecting member 220. The coil pipe support 200 in this form has the advantages of relatively stable self-structure and being able to firmly fix the chemical delivery pipe 300.

[0053] Refer to Figure 4 , as an example, the connecting member 220 includes a plurality of connecting bars 221 spaced apart circumferentially along the annular base 210. In the height direction of the heat exchanger, both ends of each connecting bar 221 are connected to the two annular bases 210 respectively, and a plurality of clamping grooves are formed on one side of each connecting bar 221 close to the inner peripheral wall of the housing 100 and are spaced apart in the height direction of the heat exchanger.

[0054] In this embodiment, the connecting member 220 is arranged in a form where a plurality of connecting bars 221 cooperate with each other. Compared with the integral connecting member 220, it has the advantage of relatively small self-weight; at the same time, it can also enable the chemical delivery pipe 300 to have multiple fixed points with the connecting member 220 in the circumferential direction of the annular base 210, thereby improving the fixing stability of the chemical delivery pipe 300.

[0055] It should be noted that for a pressure-bearing heat exchanger, since there is always a certain pressure during operation, if there is a liquid leakage problem, safety accidents may occur. Based on this, the structure of the pressure-bearing heat exchanger can be optimized.

[0056] Refer to Figure 5 As an example, the pressure-bearing heat exchanger further includes a bypass pipe 400. The bypass pipe 400 extends along the height direction of the heat exchanger. A liquid level sensor 410 is installed on the bypass pipe 400, and the liquid level sensor 410 is used to monitor the liquid level in the heat exchange chamber.

[0057] It should be noted that both the top opening and the bottom opening of the bypass pipe 400 are welded to the housing 100 and penetrate through the housing 100.

[0058] In this embodiment, the pressure-bearing heat exchanger is provided with a bypass pipe 400, and a liquid level sensor 410 for monitoring the liquid level in the heat exchange chamber is installed on the bypass pipe 400. The liquid level sensor 410 can be used to monitor whether there is a liquid leakage problem in the heat exchanger.

[0059] As an example, a plurality of liquid level sensors 410 are provided. The plurality of liquid level sensors 410 are spaced apart along the height direction of the heat exchanger and are used to monitor the liquid levels at different positions in the heat exchange chamber.

[0060] In this embodiment, a plurality of liquid level sensors 410 spaced apart along the height direction of the heat exchanger are provided. When some of the liquid level sensors 410 fail or malfunction, the remaining liquid level sensors 410 can be used to monitor whether there is a liquid leakage problem in the heat exchanger, thereby improving the safety of the equipment.

[0061] It should be noted that the specific positions and quantities of the liquid level sensors 410 are not limited and can be adjusted according to actual needs. For example, three liquid level sensors 410 can be provided, and the three liquid level sensors 410 respectively correspond to the top, middle, and bottom of the heat exchange chamber.

[0062] Refer to Figure 5 As an example, a pressure sensor 420 and / or a pH sensor (not shown in the figure) are also installed on the bypass pipe 400.

[0063] In this embodiment, the bypass pipe 400 is provided with a pressure sensor 420 and / or a pH sensor, which can monitor whether there is a liquid leakage problem in the chemical delivery pipe 300 (since the physical and chemical properties of water and the material are different, if there is a leakage, it will cause changes in the pressure and pH in the heat exchange chamber).

[0064] It should be noted that the relative positional relationship among the pressure sensor 420, the pH sensor, and the liquid level sensor 410 is not limited and can be adjusted according to actual needs; in particular, a plurality of bypass pipes 400 can be provided, and the pressure sensor 420, the pH sensor, and the liquid level sensor 410 are respectively installed on different bypass pipes 400.

[0065] Refer toFigure 5 As an example, a reinforcing member 430 is further installed between the housing 100 and the bypass pipe 400. One end of the reinforcing member 430 is welded to the outer peripheral wall of the housing 100, and the other end is clamped to the outer peripheral wall of the bypass pipe 400.

[0066] In this embodiment, adding the reinforcing member 430 between the housing 100 and the bypass pipe 400 can improve the connection stability between the bypass pipe 400 and the housing 100.

[0067] It should be noted that neither the number nor the position of the reinforcing members 430 is limited. For example, two reinforcing members 430 can be provided.

[0068] Refer to Figure 5 As an example, the pressure-bearing heat exchanger 10 for chemicals further includes an annular support base 500. The annular support base 500 is located at the bottom of the housing 100. The drain pipe of the heat exchanger is accommodated in the annular support base 500, and a window corresponding to the liquid outlet of the drain pipe is provided on the side wall of the annular support base 500.

[0069] It should be noted that for the structures or functional units in the pressure-bearing heat exchanger 10 for chemicals that are not specifically described or limited, there are no limitations, and they can be set according to the conventional selection in the art.

[0070] As an example, the housing 100 includes a top cover, an annular side wall, and a base. The top cover, the annular side wall, and the base together form a heat exchange chamber. Correspondingly, the water inlet joint 110, the water outlet joint 120, the liquid inlet joint 130, the liquid outlet joint 140, etc. are all provided on the top cover, and the coil support 200 is carried on the base.

[0071] As an example, both the top cover and the base are composed of a stainless steel inner lining and an outer shell made of PP material.

[0072] As an example, the top cover is composed of an annular gasket and a seal. Among them, the annular gasket is located between the seal and the annular side wall. The annular gasket is connected to the top end of the annular side wall, and the seal is detachably connected to the side of the annular gasket facing away from the annular side wall.

[0073] As an example, the chemical delivery pipe 300 is made of PFA.

[0074] As an example, the annular side wall is made of PP.

[0075] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure heat exchanger for chemicals, characterized in that: include: A shell, wherein the shell has a heat exchange chamber for accommodating condensed water, and the shell is equipped with a water inlet joint and a water outlet joint communicated with the heat exchange chamber; A coil support, the coil support is located in the heat exchange chamber and extends along the height direction of the heat exchanger; At least two chemical delivery pipes, multiple chemical delivery pipes are arranged side by side outside the coil support to form a spiral coil with the same inner diameter, each of the chemical delivery pipes is connected to the coil support, and the liquid inlets and liquid outlets of the multiple chemical delivery pipes are respectively connected to the liquid inlet joint and the liquid outlet joint located at the top of the shell and penetrating the shell.

2. The pressure heat exchanger for chemicals according to claim 1, characterized in that: In the height direction of the heat exchanger, the plurality of chemical delivery pipes extend from the top to the bottom of the heat exchange chamber.

3. The pressure heat exchanger for chemicals according to claim 1, characterized in that: The water inlet joint and / or the water outlet joint are located at the top of the shell.

4. The pressure heat exchanger for chemicals according to claim 1, characterized in that: The coil support is supported on the bottom wall of the shell.

5. The pressure heat exchanger for chemicals according to claim 4, characterized in that: In the height direction of the heat exchanger, the coil bracket includes two relatively distributed annular bases and a connecting piece for connecting the two annular bases. The connecting piece is provided with a plurality of clip grooves spaced apart along the height direction of the heat exchanger on one side close to the inner peripheral wall of the shell. The clip grooves can be clipped with the outer peripheral wall of the chemical delivery pipe.

6. The pressure heat exchanger for chemicals according to claim 5, characterized in that: The connecting member includes a plurality of connecting strips spaced apart along the circumference of the annular base. In the height direction of the heat exchanger, the two ends of each connecting strip are respectively connected to the two annular bases, and each connecting strip is provided with a plurality of snap-in grooves spaced apart along the height direction of the heat exchanger on one side close to the inner circumferential wall of the shell.

7. The pressure heat exchanger for chemicals according to any one of claims 1 to 6, characterized in that: The pressure-bearing heat exchanger further comprises a bypass pipe, which extends along the height direction of the heat exchanger. A liquid level sensor is installed on the bypass pipe, and the liquid level sensor is used to monitor the liquid level in the heat exchange chamber.

8. The pressure heat exchanger for chemicals according to claim 7, characterized in that: A plurality of the liquid level sensors are provided, and the plurality of the liquid level sensors are distributed at intervals along the height direction of the heat exchanger, and are used to monitor the liquid levels at different positions in the heat exchange chamber.

9. The pressure heat exchanger for chemicals according to claim 7, characterized in that: The bypass pipe is also equipped with a pressure sensor and / or a pH sensor.

10. The pressure heat exchanger for chemicals according to claim 7, characterized in that: A reinforcement piece is also installed between the shell and the bypass pipe, one end of the reinforcement piece is welded to the outer peripheral wall of the shell, and the other end of the reinforcement piece is clamped to the outer peripheral wall of the bypass pipe.

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