An online heater and heating circulation system

Abstract

An online heater and a heating circulation system, comprising a shell, the top of which is connected to an end cover, a heating chamber formed in the shell, a plurality of heating wires arranged along the height direction of the shell being arranged in the heating chamber; a plurality of fixing members distributed along the height direction of the shell being arranged in the heating chamber, a first through hole for fixing a liquid inlet pipe and a second through hole for fixing the heating wire being formed on the fixing member; a plurality of third through holes for damping the flow of liquid being formed on the fixing member, and the plurality of third through holes on adjacent fixing members being staggered; compared with the prior art, the heating chamber is layered by the plurality of fixing members, and the flow rate of the liquid is reduced under the action of the plurality of third through holes arranged staggered, thereby increasing the heating time of the liquid, and the plurality of third through holes arranged staggered help to separate the heating chambers, prevent impurities from accumulating at the same place in the heating chamber, maintain a good flow field effect in the heating chamber, and ensure the overall uniformity of the solution.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, in particular to an online heater and a heating circulation system. Background Art

[0002] Electric heater is an internationally popular electric heating equipment. It is used to increase the temperature, keep warm and heat the flowing liquid and gaseous medium. When the heating medium passes through the heating chamber of the electric heater under pressure, the huge heat generated by the electric heating element is evenly taken away by the principle of fluid thermodynamics, so that the temperature of the heated medium reaches the user's process requirements. Electric heating is the process of converting electrical energy into thermal energy.

[0003] The Chinese patent with application number 202020234627.4 discloses a gas-liquid heater, and the liquid heater disclosed above includes: a carrying container and a heating wire arranged in the carrying container; it is characterized in that the heating wire is distributed in a serpentine shape and fills the carrying container, and the length direction of the heating wire is parallel to the length direction of the carrying container, wherein the heated object is heated back and forth along the length direction of the carrying container. The Chinese patent with application number 202320119659.3 discloses a heater using a PTFE spacer, and the heater disclosed above includes a shell, the top of the shell is fixed with an internal thread ring, the internal thread of the internal thread ring is installed with a mounting head, the top of the outer side of the mounting head is provided with a fastening mechanism, the bottom of the mounting head is installed with a heating tube, the interior of the heating tube is provided with a heating wire, the heating wire is provided with a spacer at intervals, and a drainage port is opened on one side of the interior of the mounting head.

[0004] In the above-disclosed prior art, the liquid is heated by a heating wire in the shell. When the liquid flow rate at the liquid inlet during the heating process is too fast, it is easy to cause the heating time of the liquid to be short, so that the heating of the liquid does not achieve the set effect, and the heating efficiency is low. At the same time, during the heating process of the liquid, when impurities are doped in the liquid, the impurities are easily deposited in the heating chamber, affecting the liquid flow effect. Utility Model Content

[0005] The utility model aims to overcome the defects in the prior art and provides an online heater and a heating circulation system which can slow down the flow rate of liquid inlet and increase the flow rate of liquid outlet and improve the heating efficiency.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: an online heater, comprising a shell, the top of the shell is connected to an end cover, a heating chamber is formed in the shell, a plurality of heating wires are arranged along the height direction of the shell are arranged in the heating chamber, and a liquid inlet pipe is arranged along the height of the shell is arranged in the heating chamber; a plurality of fixing parts distributed along the height direction of the shell are arranged in the heating chamber, a first through hole for fixing the liquid inlet pipe and a second through hole for fixing the heating wire are formed on the fixing part; a plurality of third through holes for damping the flow of liquid are formed on the fixing part, and a plurality of third through holes on adjacent fixing parts are staggered; a locking ring for sealing and locking the end cover and the shell is provided between the end cover and the shell.

[0007] As a preferred solution of the utility model, a liquid inlet is formed on the end cover and is vertically arranged with respect to the liquid inlet pipe, and the liquid inlet is communicated with the liquid inlet pipe.

[0008] As a preferred solution of the utility model, a liquid outlet is also formed on the end cover and is arranged parallel to the height direction of the shell, and the liquid outlet is communicated with the heating chamber.

[0009] As a preferred solution of the utility model, a cover shell for protecting the heating wire is sleeved on the heating wire, and the cover shell is inserted into the second through hole.

[0010] As a preferred solution of the utility model, an internal thread is formed on the inner wall of the locking ring, and an external thread matching the internal thread is formed on the bottom end of the end cover and the top end of the shell.

[0011] As a preferred solution of the utility model, a limiting convex ring protruding outward along the circumferential direction of the outer wall of the shell is formed at the top end of the shell, and a limiting ring matched with the limiting convex ring is provided at the bottom end of the locking ring.

[0012] As a preferred solution of the utility model, a first annular groove is formed on the top of the shell, and a first sealing ring abutting against the end cover is provided in the first annular groove.

[0013] As a preferred solution of the utility model, a second annular groove arranged along the circumferential direction of the end cover is formed on the end cover, and a second sealing ring abutting against the inner wall of the shell is arranged in the second annular groove.

[0014] As a preferred solution of the utility model, the bottom of the shell is provided with a waste outlet connected to the heating chamber, and the top of the end cover is provided with an exhaust pipe connected to the heating chamber.

[0015] A heating circulation system comprises a chemical tank, a filter barrel and a pump body which are connected to each other. A connecting pipe is provided between the online heater and the chemical tank, and the connecting pipe is connected to the liquid outlet of the end cover, and the filter barrel is connected to the liquid inlet of the end cover; connecting pipes are also provided between the filter barrel and the pump body, and between the pump body and the chemical tank.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The heating chamber is layered by a plurality of fixing parts, and the flow rate of the liquid is reduced under the action of a plurality of third through holes arranged in a staggered manner, thereby increasing the heating time of the liquid. The plurality of third through holes arranged in a staggered manner help to separate the heating chamber, prevent impurities from accumulating in the same place of the heating chamber, maintain a good flow field effect in the heating chamber, and ensure the overall uniformity of the solution;

[0018] 2. Furthermore, by setting the liquid inlet on the end cover to be perpendicular to the liquid inlet pipe, when the liquid enters through the liquid inlet, the flow rate of the liquid is reduced, thereby increasing the heating time of the liquid. In addition, by setting the liquid outlet to be parallel to the height direction of the shell, the flow rate and flow rate of the liquid outlet are increased, thereby improving the heating efficiency;

[0019] 3. Furthermore, the end cover and the shell are locked and sealed by a locking ring, and a first sealing ring is arranged at the top of the shell, and a second sealing ring is arranged on the end cover, thereby realizing a three-layer seal between the end cover and the shell, and improving the sealing performance between the end cover and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 yes Figure 1 A magnified view of the structure at center A;

[0022] Figure 3 It is a structural diagram of the fixings;

[0023] Figure 4 is a schematic diagram of the structure of adjacent fixings;

[0024] Figure 5 This is a schematic diagram of the heating circulation system.

[0025] Figure numerals: shell 1, heating chamber 101, fixing part 102, first through hole 1021, second through hole 1022, third through hole 1023, liquid inlet pipe 103, heating wire 104, cover 1041, waste outlet 105, first annular groove 106, first sealing ring 1061, through hole 16, limiting convex ring 107, end cover 2, liquid inlet 201, liquid outlet 202, exhaust pipe 203, second annular groove 204, second sealing ring 2041, locking ring 3, limiting ring 301, chemical tank 4, connecting pipe 5, filter barrel 6, pump body 7. DETAILED DESCRIPTION

[0026] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-Figure 5 As shown, an online heater comprises a shell 1, the top of the shell 1 is connected to an end cover 2, a heating chamber 101 is formed in the shell 1, a plurality of heating wires 104 arranged along the height direction of the shell 1 are arranged in the heating chamber 101, and a liquid inlet pipe 103 arranged along the height direction of the shell 1 is arranged in the heating chamber 101; a plurality of fixing members 102 distributed along the height direction of the shell 1 are arranged in the heating chamber 101, a first through hole 1021 for fixing the liquid inlet pipe 103 and a second through hole 1022 for fixing the heating wire 104 are formed on the fixing member 102; a plurality of third through holes 1023 for damping the flow of liquid are formed on the fixing member 102, and the plurality of third through holes 1023 on adjacent fixing members 102 are staggered; a locking ring 3 for sealing and locking the end cover 2 and the shell 1 is provided between the end cover 2 and the shell 1.

[0028] Furthermore, the shell 1 of the heater is made of polytetrafluoroethylene, i.e. PTFE material. PTFE has excellent chemical stability, corrosion resistance, high temperature performance and mechanical strength, and is very suitable as a heater for acid and alkali solutions; the heating chamber 101 is set throughout the entire shell 1.

[0029] The fixing members 102 are evenly arranged in the height direction of the shell 1 in the heating chamber 101, the first through holes 1021 between two adjacent fixing members 102 are correspondingly arranged, and the second through holes 1022 between two adjacent fixing members 102 are also correspondingly arranged, and the third through holes 1023 between two adjacent fixing members 102 are arranged at different angles and staggered. This arrangement helps to separate the heating chamber 101, prevent impurities from accumulating in the same place of the heating chamber 101, maintain a good flow field effect in the heating chamber 101, and ensure the overall uniformity of the solution.

[0030] In addition, the heating wire 104 is connected to the end cover 2, and a hole corresponding to the heating wire 104 is formed on the end cover 2. The outlet seal of the heating wire 104 adopts a threaded seal. To ensure exhaust, a plurality of exhaust holes are opened on the end cover 2, and corresponding exhaust pipes 203 are connected. The plurality of exhaust pipes 203 are straight pipes, and the plurality of exhaust pipes 203 are arranged parallel to the height direction of the shell 1, so as to facilitate the discharge of gas.

[0031] A liquid inlet 201 is formed on the end cover 2 and is vertically arranged with the liquid inlet pipe 103. The liquid inlet 201 is connected with the liquid inlet pipe 103. Furthermore, the liquid inlet 201 is vertically arranged with the liquid inlet pipe 103, which can effectively slow down the flow rate of the imported liquid, increase the heating time of the liquid, and improve the heating efficiency.

[0032] A liquid outlet 202 is also formed on the end cover 2 and is arranged parallel to the height direction of the shell 1. The liquid outlet 202 is connected to the heating chamber 101. Furthermore, the liquid outlet 202 is a straight tube structure, and the straight tube structure is parallel to the height direction of the shell 1, thereby ensuring the liquid flow rate and flow rate of the liquid outlet 202 and reducing kinetic energy loss.

[0033] Specifically, the heated liquid enters the liquid inlet pipe 103 through the liquid inlet 201, and after flowing downward to fill the liquid inlet pipe 103, continues to fill into the heating chamber 101. During the process of the heated liquid filling upward in the heating chamber 101, the heating wire 104 heats the heated liquid, and the heated liquid flows away through the liquid outlet 202.

[0034] The heating wire 104 is sleeved with a cover 1041 for protecting the heating wire 104 . The cover 1041 is inserted into the second through hole 1022 . Furthermore, the heating wire 104 is arranged along the height direction of the housing 1 , and the cover 1041 is fixed in the second through hole 1022 .

[0035] An internal thread is formed on the inner wall of the locking ring 3, and external threads matching the internal threads are formed on the bottom end of the end cover 2 and the top end of the shell 1. Furthermore, the top end of the shell 1 is fixed to the locking ring 3, and the locking ring 3 has an internal thread inside. The end cover 2 and the shell 1 are connected together through a threaded connection, wherein the thread has both a connecting function and a certain sealing function to prevent liquid leakage.

[0036] In addition, a limiting convex ring 107 is formed at the top end of the shell 1 and protrudes outward along the circumferential direction of the outer wall of the shell 1, and a limiting ring 301 is provided at the bottom end of the locking ring 3 to match the limiting convex ring 107. The limiting ring 301 cooperates with the limiting convex ring 107 to ensure that the locking ring 3 is fastened to the shell 1, thereby preventing the locking ring 3 from moving upward and ensuring the tightness of the connection between the end cover 2 and the shell 1.

[0037] A first annular groove 106 is formed at the top of the shell 1, and a first sealing ring 1061 abutting against the end cover 2 is provided in the first annular groove 106. Furthermore, the first annular groove 106 is arranged along the circumferential direction of the shell 1, the first sealing ring 1061 is arranged in the first annular groove 106, and the end cover 2 abuts against the first sealing ring 1061.

[0038] In addition, a second annular groove 204 arranged along the circumferential direction of the end cover 2 is formed on the end cover 2 , and a second sealing ring 2041 abutting against the inner wall of the housing 1 is arranged in the second annular groove 204 .

[0039] The locking ring 3 is threadedly connected to the end cover 2 and the housing 1, and under the action of the first sealing ring 1061 and the second sealing ring 2041, triple sealing of the housing 1 and the end cover 2 is achieved, ensuring the sealing effect between the housing 1 and the end cover 2.

[0040] The bottom of the shell 1 is provided with a waste outlet 105 connected to the heating chamber 101, and the top of the end cover 2 is provided with an exhaust pipe 203 connected to the heating chamber 101. Furthermore, the waste outlet 105 is used to discharge accumulated impurities. The waste outlet 105 is arranged parallel to the height direction of the shell 1, and the waste outlet 105 is arranged toward the bottom of the shell 1.

[0041] A heating circulation system includes a chemical tank 4, a filter barrel 6 and a pump body 7 which are connected to each other. A connecting pipe 5 is provided between the online heater and the chemical tank 4, and the connecting pipe 5 is connected to the liquid outlet 202 of the end cover 2, and the filter barrel 6 is connected to the liquid inlet 201 of the end cover 2; connecting pipes 5 are also provided between the filter barrel 6 and the pump body 7 and between the pump body 7 and the chemical tank 4.

[0042] Furthermore, in the initial state, the chemical tank 4 contains liquid to be heated, and the pump body 7 serves as a power source to drive the liquid to flow. The filter barrel 6 filters the liquid before it is heated, thereby reducing impurities heated by the online heater for a long time. The liquid heated by the online heater returns to the chemical tank 4 through the connecting pipe 5, and the heating is repeated in this way to ensure that the temperature of the liquid in the chemical tank 4 is appropriate. In addition, the chemical tank 4 can be a chemical tank of a chain or tank cleaning machine without limitation.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0044] Although the following terms are used more frequently in this article: housing 1, heating chamber 101, fixing member 102, first through hole 1021, second through hole 1022, third through hole 1023, liquid inlet pipe 103, electric heating wire 104, cover 1041, waste outlet 105, first annular groove 106, first sealing ring 1061, through hole 16, limiting convex ring 107, end cover 2, liquid inlet 201, liquid outlet 202, exhaust pipe 203, second annular groove 204, second sealing ring 2041, locking ring 3, limiting ring 301, chemical tank 4, connecting pipe 5, filter barrel 6, pump body 7, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An online heater, comprising a shell (1), the top of which is connected to an end cover (2), characterized in that: A heating chamber (101) is formed in the shell (1), a plurality of electric heating wires (104) are arranged in the heating chamber (101) along the height direction of the shell (1), and a liquid inlet pipe (103) is arranged in the heating chamber (101) along the height direction of the shell (1); a plurality of fixing members (102) are arranged in the heating chamber (101) along the height direction of the shell (1), a first through hole (1021) for fixing the liquid inlet pipe (103) and a second through hole (1022) for fixing the electric heating wire (104) are formed on the fixing member (102); a plurality of third through holes (1023) for damping the flow of liquid are formed on the fixing member (102), and the plurality of third through holes (1023) on adjacent fixing members (102) are staggered; a locking ring (3) for sealing and locking the end cover (2) and the shell (1) is provided between the end cover (2) and the shell (1).

2. An online heater according to claim 1, characterized in that: The end cover (2) is formed with a liquid inlet (201) arranged perpendicularly to the liquid inlet pipe (103), and the liquid inlet (201) is communicated with the liquid inlet pipe (103).

3. An online heater according to claim 1, characterized in that: The end cover (2) is also provided with a liquid outlet (202) arranged parallel to the height direction of the shell (1), and the liquid outlet (202) is communicated with the heating chamber (101).

4. An online heater according to claim 1, characterized in that: The heating wire (104) is sleeved with a cover (1041) for protecting the heating wire (104), and the cover (1041) is inserted into the second through hole (1022).

5. An online heater according to claim 1, characterized in that: An internal thread is formed on the inner wall of the locking ring (3), and an external thread matching the internal thread is formed on the bottom end of the end cover (2) and the top end of the shell (1).

6. An online heater according to claim 1, characterized in that: The top end of the shell (1) is formed with a limiting protrusion (107) protruding outwardly along the circumferential direction of the outer wall of the shell (1), and the bottom end of the locking ring (3) is provided with a limiting ring (301) matched with the limiting protrusion (107).

7. An online heater according to claim 1, characterized in that: A first annular groove (106) is formed on the top of the housing (1), and a first sealing ring (1061) abutting against the end cover (2) is provided in the first annular groove (106).

8. An online heater according to claim 1, characterized in that: The end cover (2) is formed with a second annular groove (204) arranged along the circumferential direction of the end cover (2), and a second sealing ring (2041) abutting against the inner wall of the housing (1) is arranged in the second annular groove (204).

9. An online heater according to claim 1, characterized in that: The bottom of the shell (1) is provided with a waste outlet (105) connected to the heating chamber (101), and the top of the end cover (2) is provided with an exhaust pipe (203) connected to the heating chamber (101).

10. A heating circulation system, characterized in that: The online heater is applicable to any one of claims 1 to 9, comprising a chemical tank (4), a filter barrel (6) and a pump body (7) which are connected to each other, wherein a connecting pipe (5) is provided between the online heater and the chemical tank (4), and the connecting pipe (5) is connected to the liquid outlet (202) of the end cover (2), and the filter barrel (6) is connected to the liquid inlet (201) of the end cover (2); connecting pipes (5) are also provided between the filter barrel (6) and the pump body (7) and between the pump body (7) and the chemical tank (4).

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