CN215074842U

CN215074842U - Emergency treatment gas-water circulating heat exchanger

Info

Publication number: CN215074842U
Application number: CN202120388148.2U
Authority: CN
Inventors: 张红升; 杨昊东; 高士博; 于涛; 曹丽琴; 郭凯
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-12-10
Anticipated expiration: 2031-02-22

Abstract

The utility model discloses a circulating heat exchanger of emergency treatment gas water, which comprises a heating furnace, check valve an, check valve b, coupling hose, quick-operation joint, manual three-way valve, coupling pipe festival and single tube heat exchanger, the heating furnace is by furnace, the hot water export is taken over, cold water inlet is taken over, the exhaust is taken over, manual ball valve, tap, the temperature instrument is taken over, the temperature instrument, the water tank, the sealed lid of water tank and water tank connecting pipe are constituteed, quick-operation joint is by big nut, seal ring and T shape tube head are constituteed, single tube heat exchanger is including heat transfer district, couple district and screwed joint district, the interim heating of fish bowl when being used for having a power failure, and can move for a long time. The method makes up the defects of the existing electric drive temperature compensation method, adopts the principle of a boiler and a shell-and-tube heat exchanger according to the thermodynamics and heat transfer theory, adopts the gas of a gas stove as a power source during power failure to provide an emergency treatment heat exchanger for the fish tank water, can safely, trouble-saving and mute operation, and is convenient to disassemble, assemble and store.

Description

Emergency treatment gas-water circulating heat exchanger

Technical Field

The utility model relates to an ornamental fish articles for use field especially relates to a circulating heat exchanger of emergency treatment gas water.

Background

With the improvement of living standard and the increase of working pressure, people who raise a jar of ornamental fish in the family for self-decompression and ceramic feeling are more and more, wherein most people select fresh water fishes in Africa, south America, Amazon basin and tropical and subtropical environments near the equator of Asia, such as various candlestids, three lakes, immortal fishes and exotic fishes, namely tropical fishes which are commonly called. Although different species of tropical fish have different requirements on water temperature, most tropical fish are suitable for being heated at 25-30 ℃. Some species such as tiger skin fish, immortal fish and the like die when the water temperature is lower than 18 ℃. In addition, the water temperature should be kept constant, the temperature difference between day and night should be less than 4 ℃, otherwise the normal growth and reproduction of tropical fish will be influenced, and the more delicate fish species are very easy to get ill and die when the fluctuation of the water temperature is large. Therefore, the control of the water temperature is the key for culturing the tropical fish.

In order to ensure that the water temperature of the fish tank is stabilized within a reasonable interval range, one or more electric heating rods are placed in the fish tank according to the size of the fish tank, the type of fish to be cultured and the like, and the heating rods are always in an electricity insertion state. When the temperature is lower than the set value of the heating rod, the heating rod is automatically started to heat the water in the fish tank, and when the water temperature reaches the set value, the heating rod is automatically powered off to stop heating, and the circulation is repeated. However, the commercial power supply system stops supplying power occasionally due to accidents or overhauling, so that the heating rod cannot work. Since the tropical fish requires a high water temperature and a stable temperature difference, otherwise it will easily die. The cost of one aquarium fish is very high, one aquarium fish such as the imported African lake fish and the rainbow fish is hundreds and thousands of times, while the cost of some precious fish species such as the good-quality dragon fish is tens of thousands or even hundreds of thousands, and the loss is serious if the fish species die.

Therefore, the ordinary fish-farming fans can avoid the situation in various ways. For example, a method of filling hot water into the fish tank and changing the water is adopted at regular time, or a method of filling hot water into the bottles, then immersing a plurality of bottles into the fish tank for heat transfer is adopted, and measures such as cotton quilt are adopted for heat preservation. However, these methods are only suitable for short-time power failure, and require repeated work, which is very tiring and inefficient, and cannot be continued for a long time. Therefore, some fish culture enthusiasts, especially when the famous and precious species are cultured, can prepare a standby generator at home, generate electricity by themselves to supply the fish tank heating rod to work when the power is cut off, can maintain for a long time, and do not need to be watched at any time. However, the method of preparing a backup generator has significant limitations, such as very loud vibration and noise, difficult indoor use, and the need to prepare fuel, whether gasoline or diesel, which is dangerous to store at ordinary times.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of current temperature compensation method, according to thermodynamics, the theory of heat transfer, adopt boiler and shell-and-tube heat exchanger principle, provide an emergency treatment gas water circulating heat exchanger, can be safe, save trouble, silence operation to make things convenient for dismouting and storage.

The purpose of the utility model is realized through the following technical scheme:

an emergency treatment gas-water circulating heat exchanger comprises a heating furnace, check valves a and b, connecting hoses (2), quick connectors (4), manual three-way valves, connecting pipe joints (4) and a single-pipe heat exchanger; the heating furnace consists of a hearth, a hot water outlet connecting pipe, a cold water inlet connecting pipe, an exhaust connecting pipe, a manual ball valve, a water faucet, a temperature instrument connecting pipe, a temperature instrument, a water tank sealing cover and a water tank connecting pipe; the quick connector comprises a large nut, a sealing washer and T-shaped pipe heads, wherein the sealing washer is independently placed and is not fixedly connected with other parts, 4T-shaped pipe heads are respectively and fixedly connected with the end parts of the 2 connecting hoses, the large nut is not fixedly connected with other parts and is always sleeved on the connecting hoses and the T-shaped pipe heads, and the T-shaped end of each T-shaped pipe head is adopted for blocking to prevent the T-shaped pipe head from being separated from the connecting hose; the single-tube heat exchanger is of an integrated structure, adopts a thin-wall bent tube which is repeatedly bent back as a heat exchange tube and comprises a heat exchange area, a hook area and a threaded interface area; the utility model discloses a connection mode of urgent treatment gas water circulating heat exchanger does: the heating furnace is placed on a gas stove, the single-tube heat exchanger is hung on the side wall of the fish tank by using a hook area, and then the connection method of the hot water outflow pipeline comprises the following steps: connecting the inlet end of a check valve a to a hot water outlet connecting pipe of a heating furnace, connecting the outlet end of the check valve a to the inflow ports of 1 connecting pipe joint, screwing a large nut of a quick connector to the outflow port of the connecting pipe joint, and driving a T-shaped pipe head of the quick connector to be connected with the throttling outlet of the connecting pipe, wherein a sealing washer is placed between the T-shaped pipe head and the outflow port of the connecting pipe joint to ensure the connection tightness; the connecting method of the cold water return pipeline after heat exchange comprises the following steps: connect the one end of another coupling hose on another hickey of single tube heat exchanger through 1 quick-operation joint, and realize sealedly through seal ring, the other end of coupling hose adopts quick-operation joint and 1 one end of coupling pipe section to be connected and sealed equally, the other end of coupling pipe section is connected with check valve b's entry end, check valve b's exit end is connected through 1 coupling pipe section with manual three-way valve's entry end, manual three-way valve's export b's direction is placed up, and not connect any structure, only be used for the exhaust of initial stage, connect the export a of three-way valve on the cold water entry of heating furnace is taken over at last, accomplish the connection of heat transfer back cold water return line.

Furthermore, the hearth body of the heating furnace adopts a cylindrical structure, and an elliptical seal head is arranged at the top of the hearth body.

Furthermore, on the heating furnace, except the sealed lid of water tank and temperature instrument, other parts all with furnace fixed connection together.

Furthermore, the heating furnace is provided with the water tap which is used for discharging water in the heating furnace after the equipment is used.

Further, the water tank on the heating furnace is in the form of a large funnel for adding water into the heating furnace.

Furthermore, the exhaust connecting pipe is positioned at the top of the hearth of the heating furnace, and the top end of the exhaust connecting pipe is connected with the manual ball valve and used for exhausting air in the hearth when the heating furnace is initially charged with water. When water is added into the heating furnace through the water tank, air in the furnace is exhausted through an exhaust valve and an outlet b of the manual three-way valve.

Further, the height should be larger than the height of the exhaust valve so as to exhaust the air in the furnace.

Further, since the height of the hood on the top of a portion of the home gas range is limited, in order to secure the height of the water tank, the length of the horizontal portion of the water tank connection pipe may be adjusted so as to keep the position of the water tank away from the hood.

Furthermore, one end of the hot water outlet connecting pipe, the cold water inlet connecting pipe and the exhaust connecting pipe on the heating furnace are welded on the heating furnace by adopting a welding method, and the other end of the hot water outlet connecting pipe, the cold water inlet connecting pipe and the exhaust connecting pipe are in a threaded interface form and are used for being connected with other components.

Furthermore, the water tank sealing cover is in threaded connection with the water tank, so that the whole equipment is sealed, evaporation loss of moisture is not generated or is generated very little in the running process of the equipment, and the moisture does not need to be replenished.

Furthermore, the valve body of the manual three-way valve is provided with three ports, one port enters the three ports and the two ports exit from the three ports, and the inlet and the port a of the three-way valve can be respectively connected or the inlet and the port b of the three-way valve can be connected according to different requirements, so that the exhaust or the communication of a loop is realized.

Further, the check valve is an automatic valve, which is a valve that automatically opens and closes a valve flap by the flow of a medium itself to prevent the backflow of the medium, and is also called a check valve. During installation, the flowing direction of a medium is required to be consistent with the direction of an arrow marked on the valve body, the check valve a is used for enabling hot water in the furnace to flow to the single-tube heat exchanger and preventing the water from flowing back to the heating furnace, so that the installation direction of the check valve a is that the inlet faces the heating furnace, the outlet faces the single-tube heat exchanger, the check valve b is used for enabling cold water after heat exchange to flow back and preventing the hot water in the furnace from flowing to the single-tube heat exchanger, and therefore the installation direction is that the inlet faces the single-tube heat exchanger and the outlet faces the heating furnace.

Furthermore, due to the characteristic that hot water moves upwards, the hot water outlet connecting pipe is arranged at the upper part of the hearth, and the cold water inlet connecting pipe is arranged at the lower part of the hearth, so that the circulation of water is facilitated, and the energy is saved.

Furthermore, both ends of the quick joint are in threaded structures and are used for being connected with other components.

Further, the connected heat exchanger is hung on the side wall of the fish tank through a hook.

Furthermore, the temperature instrument selects the connector in the form of the external taper pipe thread so as to be quickly connected with the connector in the form of the internal taper pipe thread of the temperature instrument connecting pipe, and the taper pipe thread is favorable for improving the sealing performance.

Furthermore, the connecting hose is placed on the floor.

Furthermore, the big nut is of an internal thread structure, and is convenient to connect with a pipe fitting with an external thread.

Furthermore, after the equipment is used, all the parts can be disassembled and stored, and when the equipment is used again, the parts are connected again according to the method.

An emergency treatment gas-water circulating heat exchanger, the use method and the working principle are as follows:

when power is off, the heating furnace of the utility model is placed on the gas stove, all the components are connected according to the connection method, the heat exchange tube part of the single-tube heat exchanger is placed in the fish tank, and the hook part is hung on the side wall of the fish tank. And then opening a sealing cover of an upper water tank of the heating furnace, adding tap water into the heating furnace through the water tank, opening a manual ball valve at the top of the heating furnace and a port b of a manual three-way valve to discharge air at the moment, closing the manual ball valve until a hearth of the heating furnace is filled with water, closing the port b of the manual three-way valve, namely opening a port a, continuing to add the manual ball valve, and sealing the water tank through a thread sealing structure by using the sealing cover of the water tank until the water tank is also filled with water. At the moment, partial air still exists in the heat exchange tubes and the cold water return pipeline in the whole equipment, the operation of the equipment is not influenced, and after the water is circulated, the partial air is pushed into the hearth by thrust and gathers at the top of the hearth due to the action of gravity, so that the operation of the equipment is not influenced.

Optionally, if the residual air is to be exhausted, when the device is initially operated, the port b of the manual three-way valve may be opened, at which time the port a is closed, after the water in the system is circulated, the residual air may be pushed out to the atmosphere from the port b of the manual three-way valve, until the water flows out from the port b of the manual three-way valve, the port b of the manual three-way valve is closed to open the port a, and at this time, all the air in the device is exhausted.

The utility model discloses an equipment connection is accomplished and is full of after the water, opens the gas-cooker and heats the heating furnace, and according to thermal technology hydraulics principle, the fluid can be followed the high local place of flow direction potential energy low of potential energy. The water in the heating furnace is continuously brought into the single pipe heat exchanger, and the cold water with relatively low temperature after exchanging heat with the water in the fish tank flows back to the heating furnace to be reheated in the heating furnace

The heating furnace transmits hot water to the inside of a heat exchange tube of the single-tube heat exchanger, the fish tank water with lower temperature is arranged outside the heat exchange tube, the working principle of the shell-and-tube heat exchanger is used, according to the principle of heat transfer science, the hot water in the tube and cold water outside the tube carry out heat exchange in a heat conduction mode by taking the tube wall of the heat exchange tube as a conduction medium, heat carried in the hot water is transmitted to the cold water in the fish tank in the heat conduction mode, and the purpose of improving or keeping the temperature of the cold water is achieved while the temperature of the hot water is reduced.

The tropical fish tank is provided with a thermometer, the gas quantity of a gas stove is adjusted according to the display of the thermometer to control the size of heating fire, when the water temperature of the fish tank is within an ideal range, the indication value of a temperature instrument on a heating furnace is observed, the value is kept by adjusting the duration and degree of heating, the whole system is in a balance state, and the hot water in the heating furnace can just maintain the water temperature in the fish tank. At the moment, the opening of the fuel gas is fixed, so that the water temperature of the fish tank can be stably maintained.

When the power supply is recovered, the gas stove is closed to stop heating, a water tap on the heating furnace is opened to drain water in the heating furnace, the water tank sealing cover needs to be opened to be communicated with the atmosphere at the moment, and otherwise, no atmospheric pressure exists to discharge the water in the heating furnace. Then, the quick connectors are respectively opened to drain the water in the single-tube heat exchanger and the pipeline. And finally, after all the parts are disassembled and dried, the parts can be conveniently stored.

The whole heat exchange principle can be simply described as follows: the water is heated by the gas stove, and then the water in the fish tank is heated by heat exchange in the single-tube heat exchanger, so that the heat preservation effect is achieved.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses equipment adopts the gas heating, has solved the unable problem that keeps of fish bowl temperature when the outage.

2. The utility model discloses equipment adopts the gas as the heating source, and the cost is lower, and is cheaper than former electric heating rod, therefore can long-time operation when having a power failure for a long time, need not worry the too high problem of cost.

3. The utility model discloses in the equipment operation process, need not realize heat transfer with water heating to boiling, consequently the security is very high, and at indoor operation, heat exchange efficiency is higher.

4. The utility model discloses equipment operation is quiet, noiselessness, no vibration, is fit for indoor operation, and owing to adopt domestic kitchen natural gas or coal gas as the energy, does not need independent deposit.

5. After the system is properly adjusted, the system can run stably without continuous attention.

6. When not in use, the storage can be disassembled.

Drawings

Fig. 1 is a general schematic diagram of an emergency treatment gas-water circulation heat exchanger according to the present invention.

Fig. 2 is a schematic operation diagram of the gas-water circulation heat exchanger for emergency treatment of the present invention.

FIG. 3 is a schematic view of the structure of the heating furnace.

Fig. 4 is a partial sectional view of the heating furnace.

Fig. 5 is a sectional view showing the connection of the water tank and the sealing cover of the water tank.

Fig. 6 is a schematic structural view of the quick coupling.

FIG. 7 is a cross-sectional view of the connection of the quick connector. Drawing (A)

Fig. 8 is a schematic structural view of a single-tube heat exchanger.

Fig. 9 is a partially enlarged schematic view of a hooking area and a pipe connection area of the single pipe heat exchanger.

Fig. 10 is a partial enlarged view of the area of the hot water outlet connection.

Fig. 11 is a close-up view of the cold water inlet connection area.

Illustration of the drawings: 1. heating furnace; 2. a check valve a; 3. a check valve b; 4. connecting hoses (2); 5. quick connectors (4); 6, a manual three-way valve; 7. connecting pipe joints (3); 8. a single-tube heat exchanger; 1-1, a hearth; 1-2, a hot water outlet connecting pipe; 1-3. cold water inlet connecting pipe; 1-4, an exhaust connecting pipe; 1-5, manual ball valve; 1-6. a water tap; 1-7, connecting a temperature instrument; 1-8, connecting a temperature instrument; 1-9. a water tank; 1-10. water tank sealing cover; 1-11. water tank connecting pipe; 5-1. big nut; 5-2. a T-shaped tube head; 5-3. sealing washer; 8-1 heat exchange zone; 8-2 hook areas; 8-3 nipple area; 9 the fish tank.

Detailed Description

The invention is described in further detail below with reference to the drawings and the detailed description.

As shown in fig. 1-11, an emergency treatment gas-water circulation type heat exchanger comprises a heating furnace (1), a check valve a (2), a check valve b (3), 2 connecting hoses (4), 4 quick connectors (5), a manual three-way valve (6), 3 connecting pipe joints (7) and a single-pipe heat exchanger (8); the heating furnace (1) consists of a hearth (1-1), a hot water outlet connecting pipe (1-2) and a cold water inlet connecting pipe

(1-3), an exhaust connecting pipe (1-4), a manual ball valve (1-5), a water tap (1-6), a temperature instrument connecting pipe (1-7), a temperature instrument (1-8), a water tank (1-9), a water tank sealing cover (1-10) and a water tank connecting pipe (1-11); the quick connector is composed of a large nut (5-1), T-shaped pipe heads (5-2) and sealing washers (5-3), the sealing washers (5-3) are independently placed and are not fixedly connected with other parts, 4T-shaped pipe heads (5-2) are respectively and fixedly connected with the end parts of the 2 connecting hoses (4), the large nut (5-1) is not fixedly connected with other parts and is always sleeved on the connecting hose (4) and the T-shaped pipe heads (5-2) and blocked by the T-shaped ends of the T-shaped pipe heads (5-2) to prevent the T-shaped pipe heads from being separated from the connecting hose (4); the single-tube heat exchanger (8) is of an integrated structure, adopts a thin-wall bent tube with repeated bending as a heat exchange tube and comprises a heat exchange area (8-1), a hook area (8-2) and a threaded interface area (8-3); the utility model discloses a connection mode of urgent treatment gas water circulating heat exchanger does: the heating furnace (1) is placed on a gas stove, and the single-tube heat exchanger (8) is hung on the side wall of the fish tank (9) by using the hook area (8-1). The connecting method of the hot water outlet pipeline comprises the following steps: the inlet end of the check valve a (2) is connected with a hot water outlet connecting pipe (1-2) of the heating furnace (1), the outlet end of the check valve a (2) is connected with the inflow ports of 1 connecting pipe joint (7), and the quick joint is connected

(5) Big nut

(5-1) is screwed at the outflow port of the connecting pipe joint (7) and drives the T-shaped pipe head (5-2) of the quick joint (5) to be connected with the outflow port of the connecting pipe joint (7), wherein the sealing gasket is arranged between the T-shaped pipe head (5-2) and the outflow port of the connecting pipe joint (7)

(5-3) to ensure the connection tightness, so that the connecting hose (4) is communicated with the heating furnace (1) through the quick connector (5), and then the other end of the connecting hose (4) is connected with the threaded interface (8-3) of the single-pipe heat exchanger (8) through the quick connector (5) to realize sealing, wherein the connection method is a connection method of a hot water outflow pipeline; the connecting method of the cold water return pipeline after heat exchange comprises the following steps: one end of another connecting hose (4) is connected to another threaded connector (8-3) of the single-pipe heat exchanger (8) through 1 quick connector (5), sealing is realized through a sealing washer (5-3), the other end of the connecting hose (4) is connected and sealed with one end of 1 connecting pipe joint (7) through the quick connector (5), the other end of the connecting pipe joint (7) is connected with the inlet end of a check valve b (3), the outlet end of the check valve b (3) is connected with the inlet end of a manual three-way valve (6) through 1 connecting pipe joint (7), the outlet b of the manual three-way valve (6) is placed upwards, is not connected with any structure and is only used for exhaust in the initial stage, and finally the outlet a of the manual three-way valve (6) is connected to a cold water inlet connecting pipe (1-3) of the heating furnace (1), and completing the connection of the cold water return pipeline after heat exchange. Wherein the fish tank (9) does not belong to the utility model.

Furthermore, the connecting hose is placed on the floor.

As shown in fig. 2, the water flow and heat exchange principle of the emergency treatment gas-water circulating heat exchanger of the present invention is: the open fire of the gas stove provides a heat source to heat water in the heating furnace, hot water with higher energy flows to the single-tube heat exchanger with lower energy according to the thermal hydraulic and thermodynamic principles, and the hot water in the heat exchange tube exchanges heat with the cold water in the fish tank outside the heat exchange tube through the tube wall of the heat exchange tube, so that the effect of heating or insulating the water in the fish tank is achieved.

The utility model discloses an emergency treatment gas water circulating heat exchanger's application method and theory of operation specifically as follows: stop

When the electric heating furnace is powered on, the heating furnace of the utility model is placed on the gas stove, all the components are connected according to the connection method, the heat exchange tube part of the single-tube heat exchanger is placed in the fish tank and immersed in water, and the hook part is hung on the side wall of the fish tank. And then opening a sealing cover of an upper water tank of the heating furnace, adding tap water into the heating furnace through the water tank, opening a manual ball valve at the top of the heating furnace at the moment, turning a manual three-way valve to a b port opening state to discharge air, closing the manual ball valve until a hearth of the heating furnace is filled with water, closing the b port of the manual three-way valve to open an a port, continuously adding water, and sealing the water tank through a thread sealing structure by using the sealing cover of the water tank until the water tank is also filled with water quickly. At the moment, partial air still exists in the heat exchange tubes and the cold water return pipes in the whole equipment, the operation of the equipment is not influenced, and after the water is circulated, the partial air is pushed into the hearth by thrust, and finally is gathered at the top of the hearth due to light gravity, so that the operation of the equipment is not influenced.

Optionally, if the residual air is to be exhausted, when the device is initially operated, the port b of the manual three-way valve may be opened, at which time the port a is closed, after the water in the system is circulated, the residual air may be pushed out to the atmosphere from the port b of the manual three-way valve, until the water flows out from the port b of the manual three-way valve, the port b of the manual three-way valve is closed to the open state of the port a, and at this time, all the air in the device is exhausted.

The utility model discloses an equipment connection is accomplished and is full of after the water, opens the gas-cooker and heats the heating furnace, according to thermal technology hydraulics and thermodynamic principle, the fluid can follow the high local place of potential energy and flow to the low place of potential energy. The water in the heating furnace is continuously brought into the single pipe heat exchanger, and the cold water with relatively low temperature after exchanging heat with the water in the fish tank flows back to the heating furnace for reheating.

The above embodiments of the present invention are merely preferred embodiments of the present invention, and are not limitations of the present invention.

Claims

1. An emergency treatment gas-water circulation type heat exchanger is characterized in that: the device comprises a heating check valve a, a check valve b, a connecting hose, a quick joint, a manual three-way valve, a connecting pipe joint and a single-pipe heat exchanger; the manual three-way valve body has three mouth, and one advances two, can connect the entry and the a mouth of three-way valve respectively according to different demands, or connects the entry and the b mouth of three-way valve, realizes the intercommunication in exhaust or return circuit, check valve an installation direction is the entry towards the heating furnace, and the export is towards single tube heat exchanger, check valve b installation direction is the entry towards single tube heat exchanger, and the export is towards the heating furnace, the quick-operation joint both ends all are helicitic texture for be connected with other parts, connecting hose put on the floor can.

2. The emergency treatment gas-water circulation heat exchanger of claim 1, wherein: the heating furnace consists of a hearth, a hot water outlet connecting pipe, a cold water inlet connecting pipe, an exhaust connecting pipe, a manual ball valve, a water faucet, a temperature instrument connecting pipe, a temperature instrument, a water tank sealing cover and a water tank connecting pipe, wherein other parts except the water tank sealing cover and the temperature instrument are fixedly connected with the hearth on the heating furnace, the exhaust connecting pipe is positioned at the top of the hearth of the heating furnace, the top end of the exhaust connecting pipe is connected with the manual ball valve, the hot water outlet connecting pipe, the cold water inlet connecting pipe and the exhaust connecting pipe are welded on the heating furnace by adopting a welding method, one end of the hot water outlet connecting pipe, the other end of the cold water inlet connecting pipe and the exhaust connecting pipe are in a threaded interface form and are used for being connected with other parts, the hot water outlet connecting pipe is arranged at the upper part of the hearth, the cold water inlet connecting pipe is arranged at the lower part of the hearth, the water tank sealing cover is in threaded connection with the water tank, and the temperature instrument selects a connector in an external taper pipe threaded form, so as to be quickly connected with a connector in the form of an inner taper pipe thread of the temperature instrument connecting pipe.

3. The emergency treatment gas-water circulation heat exchanger of claim 1, wherein: quick-operation joint constitute by big nut, seal ring and T shape tube head, seal ring independent placement, not with other part fixed connection, T shape tube head respectively with coupling hose's tip fixed connection, big nut not with other part fixed connection, cover all the time on coupling hose and T shape tube head to adopt the T shape end of T shape tube head to keep off, prevent from separating with coupling hose.

4. The emergency treatment gas-water circulation heat exchanger of claim 1, wherein: the single-tube heat exchanger is of an integrated structure, adopts a thin-wall bent tube which is repeatedly bent back as a heat exchange tube, and comprises a heat exchange area, a hook area and a threaded interface area.

5. The emergency treatment gas-water circulation heat exchanger of claim 1, wherein: the hearth body of the heating furnace adopts a cylindrical structure, and the top of the hearth body is provided with an elliptical seal head.

6. The emergency treatment gas-water circulation heat exchanger of claim 2, wherein: the water tank on the heating furnace is in a large funnel form and is used for adding water into the heating furnace.

7. The emergency treatment gas-water circulation heat exchanger of claim 2, wherein: since the height of the hood on the top of a part of a home gas range is limited, in order to ensure the height of the water tank, the length of the transverse part of the water tank connecting pipe can be adjusted so as to enable the position of the water tank to avoid the hood.

8. The emergency treatment gas-water circulation heat exchanger of claim 2, wherein: due to the characteristic that hot water moves upwards, the hot water outlet connecting pipe is arranged at the upper part of the hearth, and the cold water inlet connecting pipe is arranged at the lower part of the hearth, so that the circulation of water is facilitated, and the energy is saved.

9. An emergency treatment gas-water circulating heat exchanger according to claim 3, wherein: the big nut is of an internal thread structure, and is convenient to connect with a pipe fitting with an external thread.