A multi-station constant temperature device for measuring Henry's constant of methane in water

Abstract

The present invention discloses a multi-station constant temperature device for measuring Henry's constant of methane in water, comprising a heat preservation box, an induction temperature control mechanism and a heating mechanism arranged inside the heat preservation box, a heat preservation chamber is formed inside the heat preservation box, the induction temperature control mechanism is arranged in the heat preservation chamber, and the heating mechanism is arranged in the side wall of the heat preservation box; wherein, a plurality of the heat preservation boxes connect a plurality of the heat preservation chambers, and the heating mechanism forms a new heating path during the connection process of the plurality of the heat preservation boxes. The invention realizes that the number of the heat preservation boxes changes with the number of equipment that needs to be insulated when in use, thereby increasing the scope of use and reducing the floor space occupied by the heat preservation device; and when a plurality of heat preservation chambers are connected, the water temperatures in the plurality of heat preservation boxes are ensured to be the same, thereby improving the accuracy of the control variable; and the heating area is increased, thereby improving the heating effect.

Description

Technical Field

[0001] The invention relates to the field of thermostat equipment manufacturing, and in particular to a multi-station thermostat for measuring Henry's constant of methane in water. Background Art

[0002] The content of dissolved methane in water is one of the important indicators for water environment and resource surveys. At present, laboratories usually use the theoretical Henry's constant of methane in water to measure this indicator. However, the Henry's constant of methane in different types of water is different. In order to pursue higher-precision measurements, it is necessary to first determine the Henry's constant of methane. There is a spike / headspace balance method, a gas-liquid balance liquid preparation device was developed, and five gas-liquid balance liquid preparation devices were placed in a constant temperature device respectively. The Henry's constant of methane in the experimental original liquid water at 25°C was measured by the controlled variable method.

[0003] In order to improve the accuracy of temperature control, there is a thermostat of model FZKJSC-P4, which can hold 4 gas-liquid balance dispensing devices at the same time, and the water temperature control accuracy is 0.1°C. However, in the experiment, 5 or even more gas-liquid balance dispensing devices need to be placed at the same time. The number of slots of this thermostat is fixed. If it is grouped for insulation, it will increase the process of the experiment and affect the efficiency. There is also a common multi-station thermostat in the laboratory, but it has a small heating area, slow heating, uneven temperature control, large floor space, and high water consumption, which will cause additional energy waste when used. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-station constant temperature device for measuring Henry's constant of methane in water, so as to solve the technical problems of the prior art that the number of stations of the water tank is fixed and the occupied area is large.

[0005] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0006] The present invention provides a multi-station constant temperature device for measuring Henry's constant of methane in water, comprising a rectangular heat preservation box, an induction temperature control mechanism and a heating mechanism arranged inside the heat preservation box, a heat preservation chamber is formed inside the heat preservation box, the induction temperature control mechanism is arranged in the heat preservation chamber, and the heating mechanism is arranged in the side wall of the heat preservation box;

[0007] The plurality of heat preservation boxes connect the plurality of heat preservation chambers, and the heating mechanism forms a new heating path during the connection process of the plurality of heat preservation boxes.

[0008] As a preferred solution of the present invention, the heat preservation box body includes a heat preservation bottom plate, and side walls which are arranged on both sides of the heat preservation bottom plate in an anti-symmetrical manner with the center line of the heat preservation bottom plate as the symmetry axis, and the side walls are deformed under the action of external force;

[0009] The two side walls installed on the same thermal insulation bottom plate form a single thermal insulation cavity through the side wall sealing assembly and the bottom plate sealing assembly, the side wall sealing assembly is arranged between the plurality of side walls, and the bottom plate sealing assembly is arranged between the side wall and the thermal insulation bottom plate;

[0010] Under the action of external force, the side walls installed on different insulation base plates are interlocked and connected with each other through installation components, the base plate sealing components installed on different insulation base plates and the side wall sealing components installed on different side walls are connected with each other to form a plurality of interconnected insulation cavities, and the heating mechanism is wrapped inside by the side wall and deforms along with the deformation of the side wall.

[0011] As a preferred solution of the present invention, the side wall comprises a fixing plate fixedly mounted on the heat-insulating bottom plate, and a shifting plate mounted on the fixing plate, one side of the shifting plate is hinged to the fixing plate through a hinge, the other side of the shifting plate is clamped to another fixing plate arranged on the same heat-insulating bottom plate through the side wall sealing assembly, the shifting plate and the heat-insulating bottom plate are connected through the bottom plate sealing assembly to form a single heat-insulating chamber, the heating mechanism is mounted on the fixing plate and passes through the hinge, the shifting plate and the side wall sealing assembly in sequence and returns to the fixing plate;

[0012] The shift plate is installed on the fixing plate through the installation component under the action of external force, the side wall sealing components arranged on different insulation bottom plates and the fixing plates are engaged with each other to form a new sealing structure and connect multiple insulation chambers together, and the heating mechanisms installed on different shift plates are connected through the installation component combination.

[0013] As a preferred solution of the present invention, the mounting assembly includes pressing grooves respectively arranged on the upper and lower sides of the fixing plate, and mounting grooves connected to the pressing grooves, the notch of the pressing groove is inclined inward and is used to fix the shift plate, the mounting groove is arranged at the connection between the fixing plate and the shift plate, the end of the shift plate passes through the pressing groove and is arranged inside the mounting groove, the heating mechanism installed at the hinge extends into the groove of the mounting groove, and the heating mechanism arranged on the mounting groove is connected to the heating mechanism arranged in the shift plate.

[0014] As a preferred solution of the present invention, the heating mechanism includes a master control switch arranged inside the fixing plate, and a heating wire connected to the master control switch, the master control switch is connected to the induction temperature control mechanism, the heating wire is coiled through the inside of the fixing plate, the hinge, the shift plate and the side wall sealing assembly to form a heating path, and the multiple layers of the heating wire arranged at the hinge all extend outward to the mounting groove and are cut off inside the mounting groove.

[0015] As a preferred solution of the present invention, each layer of the heating wire is provided with a break aligned in the vertical direction, the heating wires installed at both ends of the break are connected by a connecting piece, the connecting piece is provided on the side wall sealing assembly, and the end of the heating wire in the installation groove is provided with an interface matching the connecting piece.

[0016] As a preferred solution of the present invention, the side wall sealing assembly comprises a first plate body mounted on the retaining plate and a second plate body mounted on the end of the shifting plate, the first plate body is provided with a plurality of first threading holes evenly distributed, the heating wire mounted on the retaining plate is arranged on the first threading holes, and first mounting holes are provided at both ends of the first plate body;

[0017] The second plate body is evenly distributed with a plurality of second threading holes, the heating wire installed on the shift plate is arranged on the second threading hole, second mounting holes are opened at both ends of the second plate body, a mounting rod passing through the first mounting hole is arranged in the second mounting hole, the mounting rod drives the first plate body to engage with the second plate body, and the connecting piece is arranged inside the first threading hole and the second threading hole.

[0018] As a preferred solution of the present invention, the connector includes a connection groove installed at the first threading hole, and a connection head installed at the second threading hole, and the cross-sectional area of ​​the connection head is smaller than that of the connection groove to facilitate the fitting installation of the two;

[0019] The heating wire installed on the retaining plate extends to the bottom of the connecting groove, the heating wire installed on the shifting plate extends to the end of the connecting head, and the interface has the same structure as the connecting groove and the heating wire installed inside the installation groove extends to the end of the interface.

[0020] As a preferred solution of the present invention, the bottom plate sealing assembly includes rubber strips respectively installed at both ends of the thermal insulation bottom plate, a rubber groove is provided on one side of the rubber strip, and a rubber protrusion is provided on the other side of the rubber strip, and the bottom of the shift plates installed on both sides are respectively provided with rubber plates matching the rubber groove and rubber grooves matching the rubber protrusions.

[0021] As a preferred solution of the present invention, the hinge includes a plurality of hinges installed between the fixing plate and the displacement plate, and a cylindrical water retaining bar arranged at the connection between the fixing plate and the displacement plate, the water retaining bar is rotatably installed on the edge of the fixing plate and connected to the displacement plate through the hinges, and a plurality of the heating wires pass through the water retaining bar.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention is provided with a plurality of heat preservation boxes which are independent of each other and can be combined together. When in use, the number of the heat preservation boxes changes with the number of equipment that needs to be insulated, thereby improving the experimental efficiency, increasing the scope of use, and reducing the floor space occupied by the heat preservation device, thereby reducing the waste of water resources and electric energy. The side walls of the heat preservation boxes can be opened and interlocked with each other to form a new heating passage, and the plurality of heat preservation chambers assembled together are connected to ensure that the water temperature in the plurality of heat preservation boxes is the same, thereby improving the accuracy of the control variable. The heating mechanism is wrapped on the heat preservation box, and the plurality of heat preservation boxes connected together are heated at the same time, thereby increasing the heating area and improving the heating speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0025] Figure 1 A partial structural schematic diagram of a multi-station constant temperature device for measuring Henry's constant of methane in water is provided for an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of the installation assembly is provided for an embodiment of the present invention;

[0027] Figure 3 A schematic structural diagram of a side wall sealing assembly is provided for an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of a connecting piece is provided for an embodiment of the present invention;

[0029] Figure 5 A structural schematic diagram of a bottom plate sealing assembly is provided for an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of a single heat preservation cavity according to an embodiment of the present invention;

[0031] Figure 7A schematic diagram of the connection structure of two heat preservation cavities is provided for an embodiment of the present invention.

[0032] The numbers in the figure represent the following:

[0033] 1- Insulation box; 2- Induction temperature control mechanism; 3- Heating mechanism; 4- Side wall sealing assembly; 5- Bottom plate sealing assembly; 6- Mounting assembly; 7- Hinge; 8- Connector; 9- Interface;

[0034] 101-insulation bottom plate; 102-side wall;

[0035] 301- master control switch; 302- heating wire;

[0036] 401-first plate; 402-second plate; 403-first threading hole; 404-first mounting hole; 405-second threading hole; 406-second mounting hole; 407-mounting rod;

[0037] 501-rubber strip; 502-rubber groove; 503-rubber protrusion; 504-rubber plate; 505-rubber groove;

[0038] 601-pressing slot; 602-installing slot;

[0039] 701-hinge; 702-water retaining strip;

[0040] 801-connection groove; 802-connection head;

[0041] 1021-retention plate; 1022-displacement plate. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figures 1 to 7 As shown, the present invention provides a multi-station constant temperature device for measuring Henry constant of methane in water, comprising a rectangular heat preservation box 1, and an inductive temperature control mechanism 2 and a heating mechanism 3 arranged inside the heat preservation box 1, a heat preservation chamber is formed inside the heat preservation box 1, the inductive temperature control mechanism 2 is arranged in the heat preservation chamber, and the heating mechanism 3 is arranged in the side wall of the heat preservation box 1;

[0044] The plurality of heat preservation boxes 1 connect the plurality of heat preservation chambers, and the heating mechanism 3 forms a new heating path during the connection process of the plurality of heat preservation boxes 1 .

[0045] The insulation box 1 in this embodiment can be deformed and combined, and the structure and heating area of ​​the heating mechanism 3 inside it change with the deformation of the insulation box 1. When the experiment uses only one insulation box 1 or multiple insulation boxes 1 that control different temperatures, an appropriate amount of liquid is injected into the insulation box 1, the gas-liquid balance liquid distribution device is placed in the insulation box 1, and the induction temperature control mechanism 2 and the heating mechanism 3 of the insulation box 1 are turned on to insulate the gas-liquid balance liquid distribution device.

[0046] If the experiment requires that multiple insulation boxes 1 maintain the same temperature, the multiple insulation boxes 1 are deformed and combined together to form an insulation cavity that can hold multiple gas-liquid balance liquid distribution devices, and the number of insulation boxes 1 is the same as the number of gas-liquid balance liquid distribution devices, thereby reducing the footprint of the device; the heating mechanism 3 is also combined in series or in parallel when the insulation boxes 1 are combined, and the newly formed insulation chamber can be heated to increase the heating area and speed; after injecting a proper amount of liquid into the insulation box 1, the internal induction temperature control mechanism 2 and the heating mechanism 3 of the insulation box 1 are turned on, and the liquids in the multiple insulation chambers flow to each other, and the multiple induction temperature control mechanisms 2 control the temperature at the same time, thereby improving the temperature control accuracy.

[0047] In this embodiment, in order to reduce the use of power strips by multiple heating mechanisms 3, the thermal insulation box 1 and the heating mechanisms 3 are connected in series during the assembly process.

[0048] Specifically, the heat preservation box body 1 includes a heat preservation bottom plate 101, and side walls 102 which are arranged on both sides of the heat preservation bottom plate 101 in an anti-symmetrical manner with the midline of the heat preservation bottom plate 101 as the symmetry axis, and the side walls 102 are deformed under the action of external force;

[0049] The two side walls 102 installed on the same thermal insulation bottom plate 101 form a single thermal insulation cavity through the side wall sealing assembly 4 and the bottom plate sealing assembly 5. The side wall sealing assembly 4 is arranged between the plurality of side walls 102, and the bottom plate sealing assembly 5 is arranged between the side wall 102 and the thermal insulation bottom plate 101.

[0050] Under the action of external force, the multiple side walls 102 installed on different insulation base plates 101 are interlocked and connected through the installation component 6, the base plate sealing component 5 installed on different insulation base plates 101 and the side wall sealing component 4 installed on different side walls 102 are interconnected to form a plurality of interconnected insulation cavities, and the heating mechanism 3 is wrapped inside by the side wall 102 and deforms along with the deformation of the side wall 102.

[0051] If there are two insulation bottom plates 101① and ②, when the side wall 102 of one of the insulation bottom plates 101① opens and bites one of the side walls 102 of the insulation bottom plate 101②, the unbitten side wall 102 of the insulation bottom plate 101② simultaneously bites the unbitten side wall of the insulation bottom plate 101①, forming a new insulation box body with a volume twice as large but sealed at both ends; if there are n insulation bottom plates 101, they are connected in sequence in the connection modes ① and ②, and finally become a horizontal row of interconnected insulation chambers, and multiple gas-liquid balance liquid distribution devices are placed in parallel in a single row; wherein the heating mechanism 3 is also connected in series through the newly connected side wall 102 to form a new heating path, which has a heating effect on each connected insulation box body 1.

[0052] Specifically, the deformation function of the side wall 102 may cause water leakage in the insulation chamber. In order to improve the sealing of the side wall 102 during the connection and deformation process, the side wall 102 includes a fixing plate 1021 fixedly installed on the insulation bottom plate 101, and a displacement plate 1022 installed on the fixing plate 1021, and one side of the displacement plate 1022 is hinged to the fixing plate 1021 through a hinge 7.

[0053] In the initial state, the other side of the shift plate 1022 is clamped on another retaining plate 1021 arranged on the same insulation bottom plate 101 through the side wall sealing assembly 4, and the shift plate 1022 is connected to the insulation bottom plate 101 through the bottom plate sealing assembly 5 to form a single insulation chamber, and the heating mechanism 3 is installed on the retaining plate 1021 and passes through the hinge 7, the shift plate 1022 and the side wall sealing assembly 4 in sequence and returns to the retaining plate 1021.

[0054] In the combined state, the shift plate 1022 is installed on the other fixing plate 1021 connected to the insulation bottom plate 101 through the installation component 6 under the action of external force, the side wall sealing components 4 arranged on different insulation bottom plates 101 and the fixing plates 1021 are interlocked to form a new sealing structure and connect the multiple insulation chambers together, the bottom plate sealing components 5 arranged on different insulation bottom plates 101 and the fixing plates 1021 are interlocked to form a new sealing structure and seal the already interlocked insulation chambers, and the heating mechanism 3 installed on different shift plates 1022 is combined and connected through the installation component 6.

[0055] The shift plate 1022 and the mounting assembly 6 form a new sealing structure to prevent water leakage.

[0056] Specifically, the mounting assembly 6 includes pressing grooves 601 respectively arranged on the upper and lower sides of the fixing plate 1021, and a mounting groove 602 connected to the pressing groove 601, the notch of the pressing groove 601 is inclined inward and is used to fix the shift plate 1022, the mounting groove 602 is arranged at the connection between the fixing plate 1021 and the shift plate 1022, the end of the shift plate 1022 passes through the pressing groove 601 and is arranged inside the mounting groove 602, and the shift plate 1022 is fastened inside the pressing groove 601; the heating mechanism 3 installed at the hinge 7 extends into the groove of the mounting groove 602, and the heating mechanism 3 arranged on the mounting groove 602 is connected to the heating mechanism 3 arranged in the shift plate 1022.

[0057] When a plurality of heat preservation boxes 1 are connected together, the heating mechanisms 3 are connected in series through the connection between the shift plate 1022 and the mounting groove 602 .

[0058] In this embodiment, the heating mechanism 3 includes a master control switch 301 arranged inside the fixing plate 1021, and a heating wire 302 connected to the master control switch 301. The master control switch 301 is connected to the induction temperature control mechanism 2. The heating wire 302 is coiled through the fixing plate 1021, the hinge 7, the shift plate 1022 and the side wall sealing assembly 4 to form a heating passage. The multiple layers of the heating wire 302 arranged at the hinge 7 all extend outward to the mounting groove 602 and are cut off inside the mounting groove 602.

[0059] When the heating wires 302 are connected in series through the shift plate 1022 and the mounting groove 602 , the heating wires 302 form a new heating path. At this time, only one of the master control switches 301 needs to be connected to the power supply.

[0060] Preferably, each layer of the heating wire 302 is provided with a break aligned in the vertical direction, and the heating wires 302 installed at both ends of the break are connected through a connecting piece 8, and the connecting piece 8 is arranged on the side wall sealing assembly 4, and the end of the heating wire 302 in the installation groove 602 is provided with an interface 9 that cooperates with the connecting piece 8.

[0061] In the initial state, the multiple layers of fractures of the heating wire 302 are connected together by the connecting piece 8. When the shift plate 1022 moves, the connecting piece 8 is disconnected and drives the heating wire 302 to be disconnected. The heating wire 302 in the shift plate 1022 is driven to be connected to the interface 9 in the installation groove 602 again to form a new passage.

[0062] Preferably, the side wall sealing assembly 4 comprises a first plate body 401 mounted on the retaining plate 1021 and a second plate body 402 mounted at the end of the shifting plate 1022, the first plate body 401 is provided with a plurality of first threading holes 403 evenly distributed, the heating wire 302 mounted on the retaining plate 1021 is arranged on the first threading hole 403, and first mounting holes 404 are provided at both ends of the first plate body 401;

[0063] The second plate body 402 is evenly distributed with a plurality of second threading holes 405, the heating wire 302 installed on the shift plate 1022 is arranged on the second threading hole 405, second mounting holes 406 are opened at both ends of the second plate body 402, a mounting rod 407 passing through the first mounting hole 404 is arranged in the second mounting hole 406, the mounting rod 407 drives the first plate body 401 to engage with the second plate body 402, and the connecting piece is arranged inside the first threading hole 403 and the second threading hole 405.

[0064] The mounting rod 407 clamps the first plate body 401 and the second plate body 402 together, and seals the shifting plate 1022 on the fixing plate 1021 .

[0065] In this embodiment, the connecting member 8 includes a connecting groove 801 installed at the first threading hole 403, and a connecting head 802 installed at the second threading hole 405. The cross-sectional area of ​​the connecting head 802 is smaller than that of the connecting groove 801 to facilitate the fitting installation of the two.

[0066] The heating wire 302 installed on the fixing plate 1021 extends to the bottom of the connecting groove 801, the heating wire 302 installed on the shifting plate 1022 extends to the end of the connector 802, the interface 9 has the same structure as the connecting groove 801 and the heating wire 302 installed inside the installation groove 602 extends to the end of the interface 9.

[0067] The heating wires 302 at the fracture are installed one by one inside the connector 802 and are connected with the heating wires 302 inside the connector groove 801. When the shift plate 1022 is installed inside the installation groove 602, the connectors 802 are connected with the interfaces 9 one by one.

[0068] In order to improve the sealing performance of the insulation box body 1, the bottom plate sealing assembly 5 includes rubber strips 501 respectively installed at both ends of the insulation bottom plate 101, a rubber groove 502 is provided on one side of the rubber strip 501, and a rubber protrusion 503 is provided on the other side of the rubber strip 501, and the bottom of the shift plate 1022 installed on both sides is respectively provided with a rubber plate 504 matching the rubber groove 502 and a rubber groove 505 matching the rubber protrusion 503.

[0069] In the initial state, the rubber plate 504 is engaged in the rubber groove 502 , and the rubber protrusion 503 is engaged in the rubber groove 505 . When the heat preservation box 1 is connected, the rubber protrusion 503 is engaged in the rubber groove 502 .

[0070] In this embodiment, the hinge 7 includes a plurality of hinges 701 installed between the fixing plate 1021 and the shifting plate 1022, and a cylindrical water retaining bar 702 arranged at the connection between the fixing plate 1021 and the shifting plate 1022. The water retaining bar 702 is rotatably installed on the edge of the fixing plate 1021 through the hinge 701 and is connected to the shifting plate 1022, and a plurality of the heating wires 302 pass through the water retaining bar 702.

[0071] By using the multi-station constant temperature device for determining the Henry constant of methane in water of this embodiment, the number of the multi-station constant temperature device changes with the number of equipment that needs to be kept warm during use, thereby improving experimental efficiency, expanding the scope of use, and reducing the floor space occupied by the insulation device, thereby reducing the waste of water resources and electric energy; the side walls of the insulation box can be opened and interlocked to form a new heating passage, and the multiple insulation chambers assembled together are connected to ensure that the water temperature in the multiple insulation boxes is the same, thereby improving the accuracy of the controlled variables; and the heating mechanism is wrapped around the insulation box, and multiple insulation boxes connected together are heated at the same time, thereby increasing the heating area and improving the heating speed.

[0072] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A multi-station constant temperature device for measuring Henry's constant of methane in water, characterized in that: The invention comprises a heat preservation box (1), an inductive temperature control mechanism (2) and a heating mechanism (3) arranged inside the heat preservation box (1); a heat preservation chamber is formed inside the heat preservation box (1), the inductive temperature control mechanism (2) is arranged in the heat preservation chamber, and the heating mechanism (3) is arranged in the side wall of the heat preservation box (1); The plurality of heat preservation boxes (1) connect the plurality of heat preservation chambers, and the heating mechanism (3) forms a new heating path during the connection of the plurality of heat preservation boxes (1); The heat-insulating box body (1) comprises a heat-insulating bottom plate (101), and side walls (102) which are arranged on both sides of the heat-insulating bottom plate (101) in an anti-symmetrical manner with the center line of the heat-insulating bottom plate (101) as a symmetry axis, and the side walls (102) are deformed under the action of an external force; The two side walls (102) installed on the same thermal insulation bottom plate (101) form a single thermal insulation cavity through a side wall sealing assembly (4) and a bottom plate sealing assembly (5); the side wall sealing assembly (4) is arranged between the plurality of side walls (102), and the bottom plate sealing assembly (5) is arranged between the side wall (102) and the thermal insulation bottom plate (101); Under the action of external force, the side walls (102) installed on different heat-insulating bottom plates (101) are interlocked and connected via the installation components (6); the bottom plate sealing components (5) installed on different heat-insulating bottom plates (101) and the side wall sealing components (4) installed on different side walls (102) are interconnected to form a plurality of interconnected heat-insulating cavities; the heating mechanism (3) is wrapped inside by the side wall (102) and deforms along with the deformation of the side wall (102); The side wall (102) comprises a fixing plate (1021) fixedly mounted on the heat-insulating bottom plate (101), and a displacement plate (1022) mounted on the fixing plate (1021); one side of the displacement plate (1022) is hinged to the fixing plate (1021) via a hinge (7); the other side of the displacement plate (1022) is clamped to another fixing plate (1021) arranged on the same heat-insulating bottom plate (101) via the side wall sealing assembly (4); the displacement plate (1022) and the heat-insulating bottom plate (101) are connected via the bottom plate sealing assembly (5) to form a single heat-insulating chamber; the heating mechanism (3) is mounted on the fixing plate (1021) and passes through the hinge (7), the displacement plate (1022) and the side wall sealing assembly (4) in sequence and returns to the fixing plate (1021); The displacement plate (1022) is installed on the fixing plate (1021) through the installation component (6) under the action of external force, the side wall sealing components (4) arranged on different heat-insulating bottom plates (101) and the fixing plates (1021) are engaged with each other to form a new sealing structure and connect the multiple heat-insulating chambers together, and the heating mechanisms (3) installed on different displacement plates (1022) are connected in combination through the installation components (6); The mounting assembly (6) comprises pressing grooves (601) respectively arranged on the upper and lower sides of the fixing plate (1021), and a mounting groove (602) connected to the pressing groove (601); the groove of the pressing groove (601) is inclined inwardly and is used to fix the displacement plate (1022); the mounting groove (602) is arranged at the connection between the fixing plate (1021) and the displacement plate (1022); the end of the displacement plate (1022) passes through the pressing groove (601) and is arranged inside the mounting groove (602); the heating mechanism (3) installed at the hinge (7) extends into the groove of the mounting groove (602); the heating mechanism (3) arranged on the mounting groove (602) is connected to the heating mechanism (3) arranged in the displacement plate (1022).

2. A multi-station constant temperature device for measuring Henry's constant of methane in water according to claim 1, characterized in that: The heating mechanism (3) comprises a master control switch (301) arranged inside the fixing plate (1021), and a heating wire (302) connected to the master control switch (301); the master control switch (301) is connected to the induction temperature control mechanism (2); the heating wire (302) is coiled and passes through the fixing plate (1021), the hinge (7), the shift plate (1022) and the inside of the side wall sealing assembly (4) to form a heating path; the multiple layers of the heating wire (302) arranged at the hinge (7) all extend outward to the installation groove (602) and are cut off inside the installation groove (602).

3. A multi-station constant temperature device for measuring Henry's constant of methane in water according to claim 2, characterized in that: Each layer of the heating wire (302) is provided with a break aligned in the vertical direction, and the heating wires (302) installed at both ends of the break are connected via a connecting piece (8), and the connecting piece (8) is arranged on the side wall sealing assembly (4), and the end of the heating wire (302) in the installation groove (602) is provided with an interface (9) that cooperates with the connecting piece (8).

4. A multi-station constant temperature device for measuring Henry constant of methane in water according to claim 3, characterized in that: The side wall sealing assembly (4) comprises a first plate body (401) mounted on the fixing plate (1021) and a second plate body (402) mounted at the end of the displacement plate (1022); the first plate body (401) is provided with a plurality of first threading holes (403) evenly distributed; the heating wire (302) mounted on the fixing plate (1021) is arranged on the first threading hole (403); and first mounting holes (404) are provided at both ends of the first plate body (401); The second plate body (402) is provided with a plurality of second threading holes (405) which are evenly distributed, and the heating wire (302) installed on the shift plate (1022) is arranged on the second threading hole (405). Second mounting holes (406) are provided at both ends of the second plate body (402), and a mounting rod (407) passing through the first mounting hole (404) is arranged in the second mounting hole (406). The mounting rod (407) drives the first plate body (401) to engage with the second plate body (402), and the connecting member (8) is arranged inside the first threading hole (403) and the second threading hole (405).

5. A multi-station constant temperature device for measuring Henry constant of methane in water according to claim 4, characterized in that: The connecting member (8) comprises a connecting groove (801) installed at the first threading hole (403), and a connecting head (802) installed at the second threading hole (405), wherein the cross-sectional area of ​​the connecting head (802) is smaller than that of the connecting groove (801) so as to facilitate the fitting installation of the two. The heating wire (302) installed on the fixing plate (1021) extends to the bottom of the connecting groove (801), the heating wire (302) installed on the shifting plate (1022) extends to the end of the connector (802), and the interface (9) has the same structure as the connecting groove (801) and the heating wire (302) installed inside the installation groove (602) extends to the end of the interface (9).

6. A multi-station constant temperature device for measuring Henry constant of methane in water according to claim 1, characterized in that: The bottom plate sealing assembly (5) comprises rubber strips (501) respectively mounted on both ends of the thermal insulation bottom plate (101); a rubber groove (502) is arranged on one side of the rubber strip (501); a rubber protrusion (503) is arranged on the other side of the rubber strip (501); and a rubber plate (504) matching the rubber groove (502) and a rubber groove (505) matching the rubber protrusion (503) are respectively arranged at the bottom of the displacement plates (1022) mounted on both sides.

7. A multi-station constant temperature device for measuring Henry constant of methane in water according to claim 2, characterized in that: The hinge (7) comprises a plurality of hinges (701) installed between the fixing plate (1021) and the displacement plate (1022), and a cylindrical water retaining strip (702) arranged at the connection between the fixing plate (1021) and the displacement plate (1022); the water retaining strip (702) is rotatably installed on the edge of the fixing plate (1021) through the hinge (701) and is connected to the displacement plate (1022); and the plurality of heating wires (302) pass through the water retaining strip (702).

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